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CCH1:
Featuring California vascular plant data from the Consortium of California Herbaria and other sources
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Search Results
— 2000 specimen records retrieved (1470 records with coordinates) (That's the default maximum. Contact Jason Alexander for larger data requests.) Results for search: County=SAN BERNARDINO; Source=All; Collector=Peirson; Map/download results: BerkeleyMapper with layers and yellow flags |
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| Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/). | |
| Records are made available under the CCH Data Use Terms. |
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A yellow cell in the column headed "?", for records with coordinates, indicates a discrepancy with respect to range as specified in the eFlora. Read more ... |
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| ? | Specimen ID | Determination * | Collector | Collection Date | Collection Number | County | Locality | Elevation in meters | Feedback | |
|---|---|---|---|---|---|---|---|---|---|---|
| CAS-BOT-BC100148 | Bebbia juncea var. aspera | Frank W. Peirson | 1930-4-14 | 8703 | San Bernardino | Near Cave Spring, [Mohave] Mojave Desert | Comment | |||
| CAS-BOT-BC100357 | Brickellia atractyloides | Frank W. Peirson | 1930-4-29 | 8765 | San Bernardino | 2 miles east of Box S Ranch, [Mohave] Mojave Desert | 914 | Comment | ||
| CAS-BOT-BC100839 | Chrysothamnus viscidiflorus subsp. viscidiflorus | Frank W. Peirson | 1931-10-10 | s.n. | San Bernardino | Road to Fish Hatchery south of Baldwin Lake, San Bernardino Mts. | 2194 | Comment | ||
| CAS-BOT-BC101327 | Corethrogyne filaginifolia | Frank W. Peirson | 1923-8-25 | 4736 | San Bernardino | Mill Cr., San Bernardino Mts. | 1645 | Comment | ||
| CAS-BOT-BC101341 | Corethrogyne filaginifolia | Frank W. Peirson | 1920-9-13 | 2751 | San Bernardino | San Antonio Canyon, San Gabriel Mts. | 1524 | Comment | ||
| CAS-BOT-BC106576 | Baileya pleniradiata | Frank W. Peirson | 1930-4-15 | s.n. | San Bernardino | Las Vegas Road near Cima Road | Comment | |||
| CAS-BOT-BC106600 | Baileya pleniradiata | Frank W. Peirson | 1924-5-14 | 4549 | San Bernardino | 17 miles east of Victorville - Mojave Desert | Comment | |||
| CAS-BOT-BC10879 | Erythranthe suksdorfii | Frank Warrington Peirson | 1922-6-22 | 4722 | San Bernardino | South Fork of Santa Ana River Meadows, San Bernardino Mountains | 2346 | Comment | ||
| CAS-BOT-BC111024 | Scirpus microcarpus | Frank Warrington Peirson | 1922-6-20 | 3097 | San Bernardino | in water along road, 4 miles east of San Bernardino, southern California | Comment | |||
| CAS-BOT-BC111025 | Scirpus microcarpus | Frank Warrington Peirson | 1922-6-20 | 3097 | San Bernardino | in water along road, 4 mi E of San Bernardino | Comment | |||
| CAS-BOT-BC112009 | Schoenus nigricans | Frank Warrington Peirson | 1924-9-2 | 5199 | San Bernardino | Arrowhead Hot Springs, San Bernardino Mts. | 579 | Comment | ||
| CAS-BOT-BC113551 | Eleocharis bernardina | Frank Warrington Peirson | 1922-6-22 | 3120 | San Bernardino | South Fork Santa Ana Meadows, San Bernardino Mts. | 2377 | Comment | ||
| CAS-BOT-BC118528 | Carex praegracilis | Frank Warrington Peirson | 1922-7-7 | 3176 | San Bernardino | Swartout Valley, Rangers Cabin, San Gabriel Mts. | 1798 | Comment | ||
| CAS-BOT-BC123790 | Gilia latiflora subsp. elongata | Frank Warrington Peirson | 1922-5-13 | 2985 | San Bernardino | 28 miles N of Barstow, vicinity Seabergs Well | Comment | |||
| CAS-BOT-BC125335 | Salix lasiandra var. lasiandra | Frank W. Peirson | 1932-5-30 | 9971 | San Bernardino | Green Valley, San Bernardino Mts. | 2103 | Comment | ||
| CAS-BOT-BC131735 | Ericameria cooperi var. cooperi | F. W. Peirson | 1921-5-30 | 5427 | San Bernardino | Mojave River, Mojave Desert | 883 | Comment | ||
| CAS-BOT-BC134088 | Brickellia microphylla var. microphylla | Frank W. Peirson | 1921-12-18 | 2646 | San Bernardino | Granite Wells, Mojave Desert | Comment | |||
| CAS-BOT-BC134089 | Brickellia microphylla var. microphylla | Frank W. Peirson | 1920-9-15 | 2279 | San Bernardino | Lytle Creek, San Gabriel Mts. | 1828 | Comment | ||
| CAS-BOT-BC136465 | Malaxis monophyllos var. brachypoda | Frank W. Peirson | 1920-8-25 | 2271 | San Bernardino | Field redacted by CAS, contact the data manager for more information | Comment | |||
| CAS-BOT-BC137116 | Cercocarpus betuloides var. betuloides | Frank W. Peirson | 1921-3-19 | 2807 | San Bernardino | San Antonio Wash at Foothill Boulevard | 472 | Comment | ||
| CAS-BOT-BC139406 | Agrostis hyemalis | Frank W. Peirson | 1923-8-23 | 3971 | San Bernardino | San Bernardino Mountains. High Creek. | Comment | |||
| CAS-BOT-BC140298 | Ivesia santolinoides | F. W. Peirson | 1924-9-2 | 5177 | San Bernardino | Fish Camp, Fish Creek, 1 to 2 mi. west along blvd. from point where it joins Bear Creek Basin, San Bernardino | 2057 | Comment | ||
| CAS-BOT-BC141853 | Potentilla anserina | F. W. Peirson | 1924-5-15 | 4593 | San Bernardino | Baldwin Lake, San Bernardino Mts. | 2042 | Comment | ||
| CAS-BOT-BC142719 | Phacelia exilis | F. W. Peirson | 1932-5-29 | 9969 | San Bernardino | on open plateau along road to Fish Hatchery, south of Baldwin Lake, San Bernardino Mts. | 2103 | Comment | ||
| CAS-BOT-BC142720 | Phacelia exilis | Mabel B. Peirson | 1932-5-29 | 9969 | San Bernardino | Slopes south of Baldwin Lake, San Bernardino Mts. open plateau region along Fish Hatchery Road | 2103 | Comment | ||
| CAS-BOT-BC143421 | Ivesia saxosa | F. W. Peirson | 1924-5-15 | 4605 | San Bernardino | Cactus Flat, San Bernardino Mts. | 1798 | Comment | ||
| CAS-BOT-BC143819 | Cercocarpus ledifolius var. ledifolius | F. W. Peirson | 1905-7-14 | 79 | San Bernardino | Ontario Ridge, Mt. Baldy, San Gabriel Mts. [entered as LA Co.; Ontario Ridge is in SanBrndo Co.] | 2590 | Comment | ||
| CAS-BOT-BC145125 | Phacelia mustelina | Frank W. Peirson | 1921-12-18 | 2650 | San Bernardino | Granite Wells, Mohave Desert, along shelf of monolithic prominence about 2 miles north of Wells | Comment | |||
| CAS-BOT-BC158155 | Prunus emarginata | F. W. Peirson; L. Constance | 1941-6-24 | s.n. | San Bernardino | Summit of ridge above Big Pines, north side of San Gabriel Mts., near line of Los Angeles and San Bernardino County | Comment | |||
| CAS-BOT-BC171753 | Epilobium canum subsp. latifolium | F. W. Peirson | 1922-7-18 | 4115 | San Bernardino | Rocky outcrop along south edge of Ontario Peak Ridge, San Gabriel Mts. | 2590 | Comment | ||
| CAS-BOT-BC17374 | Arabis pycnocarpa var. pycnocarpa | Frank W. Peirson | 1922-8-27 | 5326 | San Bernardino | San Bernardino Mountains. Santa Ana River. | 1935 | Comment | ||
| CAS-BOT-BC17375 | Arabis pycnocarpa var. pycnocarpa | Frank W. Peirson | 1920-8-25 | 2355 | San Bernardino | San Bernardino Mountains. South Fork Santa Ana Meadow. | 2438 | Comment | ||
| CAS-BOT-BC17376 | Arabis pycnocarpa var. pycnocarpa | Frank W. Peirson | 1922-8-27 | 5326 | San Bernardino | San Bernardino Mountains. Santa Ana River. | 1935 | Comment | ||
| CAS-BOT-BC174065 | Arenaria lanuginosa var. saxosa | Frank W. Peirson | 1922-6-24 | s.n. | San Bernardino | San Bernardino Mts. Santa Ana Riv. at S.F. | Comment | |||
| CAS-BOT-BC174419 | Eremogone macradenia var. macradenia | Frank W. Peirson | 1930-4-14 | 8698 | San Bernardino | Cave Spring, [Mohave] Mojave Desert | Comment | |||
| CAS-BOT-BC174447 | Eremogone ursina | Frank W. Peirson | 1924-5-15 | 4578 | San Bernardino | Baldwin Lake | Comment | |||
| CAS-BOT-BC175132 | Silene verecunda | Frank W. Peirson | 1922-8-25 | 3270 | San Bernardino | South Fork Santa Ana River, San Bernardino Mts. | Comment | |||
| CAS-BOT-BC17736 | Carex alma | Frank W. Peirson | 1932-5-28 | s.n. | San Bernardino | San Bernardino Mountains. Southwest shores of Baldwin Lake. | 2042 | Comment | ||
| CAS-BOT-BC18112 | Carex athrostachya | Frank W. Peirson | 1929-7-11 | 8467 | San Bernardino | San Bernardino Mountains. Fawnskin, Bear Valley. | 2042 | Comment | ||
| CAS-BOT-BC184457 | Vulpia microstachys var. pauciflora | F. W. Peirson | 1920-5-18 | 2682 | San Bernardino | Lytle Creek, San Gabriel Mts. | 1066 | Comment | ||
| CAS-BOT-BC184460 | Vulpia microstachys var. pauciflora | F. W. Peirson | 1922-6-24 | 3134 | San Bernardino | .25 mi. above South Fork on south bank of Santa Ana River, San Bernardino Mts. | Comment | |||
| CAS-BOT-BC195688 | Distichlis spicata | Frank W. Peirson | 1924-5-14 | 4541 | San Bernardino | Box Spring, Cushenberry region, Mojave Desert | 1082 | Comment | ||
| CAS-BOT-BC196824 | Lupinus breweri var. grandiflorus | F. W. Peirson | 1922-6-21 | 3129 | San Bernardino | Santa Ana River, San Bernardino Mts. | 2164 | Comment | ||
| CAS-BOT-BC19746 | Carex abrupta | Frank W. Peirson | 1923-8-23 | 3973 | San Bernardino | San Bernardino Mountains. High Creek. | 2773 | Comment | ||
| CAS-BOT-BC201262 | Lupinus | F. W. Peirson | 1920-8-24 | 2253 | San Bernardino | Santa Ana River | Comment | |||
| CAS-BOT-BC204886 | Acmispon argyraeus var. argyraeus | Frank W. Peirson | 1933-6-24 | 10677 | San Bernardino | Along ridge southward from the summit of the Johnson Grade, San Bernardino Mts. | 2133 | Comment | ||
| CAS-BOT-BC205346 | Lupinus elatus | F. W. Peirson; Bulletin Torrey Club | 1919-6-4 | 2435 | San Bernardino | Icehouse Canon [Canyon] | Comment | |||
| CAS-BOT-BC205528 | Sidalcea hickmanii subsp. parishii | Frank W. Peirson | 1924-7-16 | 4971 | San Bernardino | Barton Flats Road, San Bernardino Mts. | 1524 | Comment | ||
| CAS-BOT-BC209340 | Deschampsia danthonioides | Frank W. Peirson | 1924-5-15 | 4537 | San Bernardino | Along small stream at N side of Baldwin Lake, San Bernardino Mountains | 2072 | Comment | ||
| CAS-BOT-BC211034 | Fraxinus velutina | Frank W. Peirson | 1922-5-14 | 2994 | San Bernardino | Mojave Desert. Between Oro Grande & Bridge. Along Mojave Riv. | Comment | |||
| CAS-BOT-BC215617 | Monardella linoides subsp. erecta | Frank W. Peirson | 1924-9-2 | 5186 | San Bernardino | Fish Camp, City Creek Road, San Bernardino Mts. | 2057 | Comment | ||
| CAS-BOT-BC215653 | Monardella australis | Frank W. Peirson | 1920-8-22 | 1069 | San Bernardino | Foxesee (Forsee) Creek, San Bernardino Mountains | 2590 | Comment | ||
| CAS-BOT-BC217403 | Gentiana fremontii | Frank W. Peirson | 1922-6-22 | 3136 | San Bernardino | Santa Ana River, San Bernardino Mountains | 2377 | Comment | ||
| CAS-BOT-BC217404 | Gentiana fremontii | Frank W. Peirson | 1909-8-10 | 869 | San Bernardino | South Fork Santa Ana, San Bernardino Mountains | 2438 | Comment | ||
| CAS-BOT-BC217405 | Gentiana fremontii | Frank W. Peirson | 1922-6-22 | 3136 | San Bernardino | South Fork Santa Ana River, San Bernardino Mountains | 2377 | Comment | ||
| CAS-BOT-BC217825 | Perideridia parishii | Frank W. Peirson | 1924-9-2 | 5185 | San Bernardino | Fish Camp, San Bernardino Mts. | 2057 | Comment | ||
| CAS-BOT-BC220141 | Monardella exilis | Frank W. Peirson | 1924-5-14 | 4551 | San Bernardino | 17 miles east of Victorville | Comment | |||
| CAS-BOT-BC22541 | Adenophyllum cooperi | Frank W. Peirson | 1928-4-26 | 7926 | San Bernardino | 10 miles W of Twenty-nine Palms | Comment | |||
| CAS-BOT-BC225414 | Gilia latiflora subsp. latiflora | Frank W. Peirson | 1922-5-14 | 4140 | San Bernardino | 8 miles north of Barstow, Mojave Desert | Comment | |||
| CAS-BOT-BC226879 | Linanthus killipii | F. W. Peirson | 1926-5-30 | 6748 | San Bernardino | On north side of Baldwin Lake, San Bernardino Mts., southern California | 2042 | Comment | ||
| CAS-BOT-BC227040 | Leptosiphon floribundus subsp. floribundus | Frank W. Peirson | 1922-6-25 | 3116 | San Bernardino | San Bernardino Mts. Near Barton Flats | Comment | |||
| CAS-BOT-BC232811 | Phlox dolichantha | Frank W. Peirson | 1950-7-7 | 9029 | San Bernardino | S side of Holcomb Valley, San Bernardino Mountains | Comment | |||
| CAS-BOT-BC232819 | Phlox dolichantha | Frank W. Peirson | 1926-5-30 | 6752 | San Bernardino | S side of Bear Lake, near road to the Santa Ana River | Comment | |||
| CAS-BOT-BC241262 | Castilleja cinerea | Frank W. Peirson | 1933-6-24 | s.n. | San Bernardino | Southwest shore of Baldwin Lake, San Bernardino Mts. | 2057 | Comment | ||
| CAS-BOT-BC241264 | Castilleja cinerea | Frank W. Peirson | 1943-5-30 | 13548 | San Bernardino | Baldwin Lake, San Bernardino Mts. | Comment | |||
| CAS-BOT-BC241664 | Eriogonum baileyi var. baileyi | Frank W. Peirson | 1924-8-31 | 5100 | San Bernardino | 1 mile north of Cajon Pass, Mojave Desert | 1219 | Comment | ||
| CAS-BOT-BC242811 | Eriogonum davidsonii | Frank W. Peirson | 1923-8-31 | 4005 | San Bernardino | About 4 miles eastward from Big Pines Camp, Blue Ridge, San Gabriel Mts. | 2590 | Comment | ||
| CAS-BOT-BC243018 | Poa secunda subsp. secunda | Frank W. Peirson | 1924-5-15 | 4539 | San Bernardino | N end of Baldwin Lake, San Bernardino Mountains | 2057 | Comment | ||
| CAS-BOT-BC248058 | Chorizanthe xanti var. leucotheca | Frank W. Peirson | 1920-5-18 | 1772 | San Bernardino | Lytle Creek, San Gabriel Mts. | 1066 | Comment | ||
| CAS-BOT-BC255539 | Poa annua | F. W. Peirson | 1924-5-15 | 4538 | San Bernardino | At N side of Baldwin Lake, San Bernardino Mountains | 2057 | Comment | ||
| CAS-BOT-BC255862 | Poa leibergii | Frank W. Peirson | 1942-5-10 | 13432 | San Bernardino | Summit of Johnson Grade above Baldwin Lake, San Bernardino Mts. | 2133 | Comment | ||
| CAS-BOT-BC262151 | Eriogonum umbellatum var. subaridum | Frank W. Peirson | 1922-7-7 | 3177 | San Bernardino | Sheep Creek, desert slope of San Gabriel Mts. | 1615 | Comment | ||
| CAS-BOT-BC263156 | Eriogonum maculatum | Frank W. Peirson | 1921-5-29 | 1725 | San Bernardino | This station is about due east of Hesperia, Mojave River, Mojave Desert | 883 | Comment | ||
| CAS-BOT-BC268179 | Eriogonum umbellatum var. minus | Frank W. Peirson | 1922-7-19 | 4210 | San Bernardino | San Gabriel Mts. Cucamonga Peak | Comment | |||
| CAS-BOT-BC268223 | Eriogonum umbellatum var. munzii | Frank W. Peirson | 1921-7-18 | 4211 | San Bernardino | Forks of the Coldwater (Lytle Cr. Tributary), San Gabriel Mts. | 1905 | Comment | ||
| CAS-BOT-BC268228 | Eriogonum umbellatum var. munzii | Frank W. Peirson | 1920-8-22 | 2247 | San Bernardino | Foxesee (Forsee) Creek, San Bernardino Mts. | 2133 | Comment | ||
| CAS-BOT-BC274398 | Leucopoa kingii | F. W. Peirson | 1930-7-8 | 9038 | San Bernardino | Fish Hatchery Creek, north slope Sugarloaf, San Bernadino Mts. | 2514 | Comment | ||
| CAS-BOT-BC276459 | Chaenactis carphoclinia | Frank W. Peirson | 1922-5-12 | 2974 | San Bernardino | 10 miles N of Barstow on the Granite Wells Road | Comment | |||
| CAS-BOT-BC277716 | Chaenactis macrantha | Frank W. Peirson | 1922-5-13 | s.n. | San Bernardino | Mojave Desert. 27 miles north of Barstow, about 2 mi. n. of Dry Lake | Comment | |||
| CAS-BOT-BC278582 | Festuca saximontana | F. W. Peirson | 1922-8-23 | 3266 | San Bernardino | Summit San Gorgonio, San Bernardino Mts. | 3490 | Comment | ||
| CAS-BOT-BC27886 | Boechera peirsonii | Frank Warrington Peirson | 1922-8-24 | 3269 | San Bernardino | Dollar Lake, San Bernardino Mts. | 2834 | Comment | ||
| CAS-BOT-BC28034 | Boechera xylopoda | Frank W. Peirson | 1930-4-16 | 8733 | San Bernardino | Cima Road, 10 miles south of the Las Vegas Road. | Comment | |||
| CAS-BOT-BC283371 | Calycoseris parryi | Frank W. Peirson | 1930-4-14 | 8706 | San Bernardino | About 3 miles N of Cave Spring, Mojave Desert | Comment | |||
| CAS-BOT-BC289159 | Hesperostipa comata | Frank W. Peirson | 1933-6-24 | s.n. | San Bernardino | South shore of Baldwin Lake, San Bernardino Mts. | 2057 | Comment | ||
| CAS-BOT-BC293168 | Ericameria pinifolia | Frank W. Peirson | 1918-11-25 | 2752 | San Bernardino | San Antonio Canyon, San Gabriel Mts. | 1341 | Comment | ||
| CAS-BOT-BC293567 | Erigeron aphanactis var. congestus | Frank W. Peirson | 1922-6-23 | 3102 | San Bernardino | San Bernardino Mts. Sugarloaf, summit & eastward | Comment | |||
| CAS-BOT-BC293570 | Erigeron aphanactis var. congestus | Frank W. Peirson | 1922-6-23 | 3102 | San Bernardino | Summit of Sugarloaf, San Bernardino Mts. | 2987 | Comment | ||
| CAS-BOT-BC294433 | Ericameria parryi var. aspera | F. W. Peirson | 1924-9-1 | 5168 | San Bernardino | Near Arrastre Flat, Holcomb Valley, San Bernardino Mts. | 2286 | Comment | ||
| CAS-BOT-BC294831 | Erigeron breweri var. covillei | Frank W. Peirson | 1921-7-4 | 2481 | San Bernardino | Mojave Desert near Phelan | Comment | |||
| CAS-BOT-BC295703 | Erigeron parishii | Frank W. Peirson | 1930-4-29 | 8761 | San Bernardino | Cushenbury Grade, San Bernardino Mts. | 1371 | Comment | ||
| CAS-BOT-BC295915 | Bahiopsis parishii | Frank W. Peirson | 1930-4-16 | 8748 | San Bernardino | 10 miles north of Gofffs | Comment | |||
| CAS-BOT-BC296019 | Erigeron divergens | Frank W. Peirson | 1924-5-15 | 4595 | San Bernardino | Baldwin Lake, San Bernardino Mts. | Comment | |||
| CAS-BOT-BC297168 | Erigeron concinnus var. concinnus | Frank W. Peirson | 1924-5-15 | 4572 | San Bernardino | N. end of Baldwin Lake, San Bernardino Mts. | Comment | |||
| CAS-BOT-BC297169 | Erigeron concinnus var. concinnus | Frank W. Peirson | 1933-6-24 | 10676 | San Bernardino | Along ridge southward from the summit of the Johnson Grade, San Bernardino Mts. | 2133 | Comment | ||
| CAS-BOT-BC298241 | Ericameria nauseosa var. oreophila | Frank W. Peirson | 1929-11-10 | 8606 | San Bernardino | Cactus Flat, San Bernardino Mts | 1828 | Comment | ||
| CAS-BOT-BC298501 | Eriophyllum ambiguum var. paleaceum | Frank W. Peirson | 1930-4-14 | 8704 | San Bernardino | In sandy soil above spring but more abundant in open desert of Cave Spring, Mojave Desert | Comment | |||
| CAS-BOT-BC298564 | Erigeron divergens | F. W. Peirson | 1943-5-30 | 13551 | San Bernardino | Baldwin Lake, San Bernardino Mts., southern California | Comment | |||
| CAS-BOT-BC299871 | Dieteria canescens var. canescens | Frank W. Peirson | 1929-9-16 | 8593 | San Bernardino | Near Baldwin Lake, San Bernardino Mts. | 2103 | Comment | ||
| CAS-BOT-BC300558 | Poa fendleriana subsp. longiligula | Frank W. Peirson | 1930-4-28 | 8756 | San Bernardino | Slope south of Baldwin Lake, Bear Valley, San Bernardino Mountains | Comment | |||
| CAS-BOT-BC308313 | Eriophyllum lanatum var. obovatum | Frank W. Peirson | 1924-9-2 | 5181 | San Bernardino | Fish Camp, San Bernardino Mts. | 2057 | Comment | ||
| CAS-BOT-BC310860 | Heterotheca sessiliflora subsp. fastigiata | Frank W. Peirson | 1920-9-15 | 4734 | San Bernardino | San Gabriel Mts. Lytle Cr. | Comment | |||
| CAS-BOT-BC31162 | Carex lemmonii | Frank W. Peirson | 1923-8-23 | 3970 | San Bernardino | High Creek, San Bernardino Mts. | Comment | |||
| CAS-BOT-BC31163 | Carex lemmonii | Frank W. Peirson | 1922-6-22 | 3150 | San Bernardino | South Fork Santa Ana River meadows, San Bernardino Mts. | 2377 | Comment | ||
| CAS-BOT-BC314155 | Monardella linoides | Frank W. Peirson | 1922-8-22 | 4729 | San Bernardino | San Bernardino Mts. South Fork, Santa Ana River | 2560 | Comment | ||
| CAS-BOT-BC321556 | Layia glandulosa | F. W. Peirson | 1926-5-29 | 6740 | San Bernardino | Cactus Flat, San Bernardino Mts. | 1828 | Comment | ||
| CAS-BOT-BC321558 | Layia glandulosa | Frank W. Peirson | 1924-5-15 | 4591 | San Bernardino | Shores of Baldwin Lake, San Bernardino Mountains | 2042 | Comment | ||
| CAS-BOT-BC326821 | Xylorhiza tortifolia | F. W. Peirson | 1922-5-14 | s.n. | San Bernardino | 5 miles norht of Barstow, Mojave Desert | 914 | Comment | ||
| CAS-BOT-BC334341 | Packera bernardina | Frank W. Peirson | 1933-6-24 | 10671 | San Bernardino | S. shore of Baldwin Lake, San Bernardino Mts. | 2057 | Comment | ||
| CAS-BOT-BC339380 | Lessingia glandulifera var. glandulifera | Frank W. Peirson | 1929-8-23 | 8582 | San Bernardino | Southwest slopes of Baldwin Lake, San Bernardino Mts. | 2072 | Comment | ||
| CAS-BOT-BC339412 | Lessingia glandulifera var. glandulifera | F. W. Peirson | 1921-5-29 | 1262 | San Bernardino | Mohave River, Mohave Desert | 883 | Comment | ||
| CAS-BOT-BC339413 | Lessingia glandulifera var. glandulifera | Peirson | No date on label | 5099 | San Bernardino | Cajon Pass at road to Phelan. San Gabriel Mts. | Comment | |||
| CAS-BOT-BC343815 | Madia elegans | F. W. Peirson | 1930-7-7 | 9026 | San Bernardino | Arrastre Flat, San Bernardino Mts. | 2286 | Comment | ||
| CAS-BOT-BC34441 | Carex deflexa var. boottii | Frank W. Peirson | 1924-7-5 | 4902 | San Bernardino | San Bernardino Mountains. Bluff Lake. | Comment | |||
| CAS-BOT-BC348003 | Malacothrix sonchoides | Frank W. Peirson | 1922-5-14 | 3001 | San Bernardino | Mojave Desert. 8 miles north of Barstow | Comment | |||
| CAS-BOT-BC349883 | Nicolletia occidentalis | Frank W. Peirson | 1921-5-29 | 2423 | San Bernardino | Mojave Desert. Mohave Riv. | Comment | |||
| CAS-BOT-BC363637 | Senecio fremontii var. occidentalis | Frank W. Peirson | 1923-8-24 | 3994 | San Bernardino | San Bernaridno Mts. Summit San Gorgonio Peak | Comment | |||
| CAS-BOT-BC363638 | Senecio fremontii var. occidentalis | F. W. Peirson | 1923-8-24 | 3994 | San Bernardino | Down southeast slope of summit of Mt. San Gorgonio Peak, San Bernardino Mts. | 3474 | Comment | ||
| CAS-BOT-BC375978 | Stylocline gnaphaloides | F. W. Peirson | 1921-5-29 | 5280 | San Bernardino | North slope Cajon Pass, Mojave Desert | 1097 | Comment | ||
| CAS-BOT-BC376675 | Syntrichopappus fremontii | F. W. Peirson | 1927-5-8 | 7290 | San Bernardino | 10 miles north of Barstow | Comment | |||
| CAS-BOT-BC376676 | Syntrichopappus fremontii | F. W. Peirson | 1930-4-16 | 8749 | San Bernardino | About 10 miles north of Goffs on Cima road, eastern San Bernardino County | Comment | |||
| CAS-BOT-BC391196 | Stellaria longipes subsp. longipes | Frank W. Peirson | 1922-6-22 | 3115 | San Bernardino | South Fork Santa Ana Meadows, San Bernardino Mts. | 2377 | Comment | ||
| CAS-BOT-BC39682 | Cusickiella douglasii | Frank W. Peirson | 1930-4-28 | 8755 | San Bernardino | Sugarloaf Road south from Baldwin Lake. | 2133 | Comment | ||
| CAS-BOT-BC39684 | Cusickiella douglasii | Frank W. Peirson | 1924-5-15 | 4589 | San Bernardino | San Bernardino Mountains. Baldwin Lake. | 2042 | Comment | ||
| CAS-BOT-BC40445 | Caulanthus inflatus | Frank W. Peirson | 1922-5-12 | 3014 | San Bernardino | Mojave Desert. 22 miles north of Barstow. | Comment | |||
| CAS-BOT-BC412567 | Acanthoscyphus parishii var. cienegensis | F. W. Peirson | 1922-8-26 | 4215 | San Bernardino | Cienega [Cienaga] Seca Creek, San Bernardino Mts. | 2209 | Comment | ||
| CAS-BOT-BC41619 | Draba corrugata var. corrugata | Frank W. Peirson | 1930-7-4 | 8997 | San Bernardino | San Bernardino Mountains. Greene Creek, north slope Sugarloaf. | 2514 | Comment | ||
| CAS-BOT-BC423157 | Cleomella obtusifolia | Frank W. Peirson | 1924-5-14 | 4576 | San Bernardino | Mojave Desert. 21 miles east of Victorville | Comment | |||
| CAS-BOT-BC43199 | Descurainia pinnata subsp. brachycarpa | Frank W. Peirson | 1933-6-25 | 10673 | San Bernardino | San Bernardino Mountains. Two miles southeast of Baldwin Lake. | 2133 | Comment | ||
| CAS-BOT-BC43739 | Krameria erecta | Frank W. Peirson | 1924-5-14 | 4574 | San Bernardino | Box S. Springs 3550 | Comment | |||
| CAS-BOT-BC444630 | Montia chamissoi | Frank W. Peirson | 1922-6-22 | 3137 | San Bernardino | San Bernardino Mts. S. F. Santa Ana Meadows | Comment | |||
| CAS-BOT-BC45078 | Anaphalis margaritacea | Frank W. Peirson | 1923-8-21 | 3978 | San Bernardino | SE of Forest Home, Mill Creek | 1828 | Comment | ||
| CAS-BOT-BC46160 | Agoseris heterophylla | Frank W. Peirson | 1920-8-24 | 2255 | San Bernardino | San Bernardino Mts., Upper Santa Ana River, just above enclosure, Big Meadows | 2133 | Comment | ||
| CAS-BOT-BC59153 | Antennaria dimorpha | F. W. Peirson | 1924-5-15 | 4596 | San Bernardino | Baldwin Lake, San Bernardino Mts. | 2042 | Comment | ||
| CAS-BOT-BC59154 | Antennaria dimorpha | F. W. Peirson | 1920-5-19 | 2143 | San Bernardino | Devils Backbone Ridge, San Antonio Mts. | 2133 | Comment | ||
| CAS-BOT-BC60798 | Physaria tenella | Frank W. Peirson | 1930-4-16 | 8744 | San Bernardino | 18 miles north of Goffs. Cima Road. | Comment | |||
| CAS-BOT-BC60800 | Physaria tenella | Frank W. Peirson | 1930-4-16 | 8744 | San Bernardino | 18 miles north of Goffs on the Cima Road. | Comment | |||
| CAS-BOT-BC63148 | Ceanothus vestitus | Frank W. Peirson | 1939-5-21 | 12768 | San Bernardino | Cactus Flat, San Bernardino Mts. | 1524 | Comment | ||
| CAS-BOT-BC67804 | Marsilea vestita | Frank W. Peirson | 1933-6-25 | 10674 | San Bernardino | San Bernardino Mts. - two miles southeast of Baldwin Lake | 2133 | Comment | ||
| CAS-BOT-BC70686 | Cystopteris fragilis | Frank W. Peirson | 1922-6-24 | s.n. | San Bernardino | south fork Santa Ana River, San Bernardino Mts. | 2057 | Comment | ||
| CAS-BOT-BC79943 | Antennaria microphylla | Frank W. Peirson | 1922-6-22 | 4231 | San Bernardino | South Fork Santa Ana River. San Bernardino Mts. | 2346 | Comment | ||
| CAS-BOT-BC83166 | Eschscholzia minutiflora | Frank W. Peirson | 1922-5-13 | 4176 | San Bernardino | 2 miles north of Granite Wells. | Comment | |||
| CAS-BOT-BC89475 | Lepidium fremontii | Frank W. Peirson | 1930-4-29 | 8760 | San Bernardino | San Bernardino Mountains. Cushenbury Grade. | 1219 | Comment | ||
| CAS-BOT-BC90793 | Artemisia ludoviciana subsp. ludoviciana | Frank W. Peirson | 1931-10-10 | 9601 | San Bernardino | Baldwin Lake, San Bernardino Mts. | 2072 | Comment | ||
| CAS-BOT-BC90796 | Artemisia ludoviciana subsp. ludoviciana | F. W. Peirson | 1923-9-1 | 3197 | San Bernardino | Ranger Station, Swartout Valley, north slope of San Gabriel Mts. | 1798 | Comment | ||
| CAS-BOT-BC90846 | Artemisia nova | F. W. Peirson | 1924-9-1 | 5157 | San Bernardino | summit [Johnson's] Johnson Grade, San Bernardino Mts. | 2087 | Comment | ||
| CAS-BOT-BC97922 | Symphyotrichum frondosum | Frank W. Peirson | 1923-8-25 | 4738 | San Bernardino | Mill Cr., San Bernardino Mts. | 1645 | Comment | ||
| CAS-BOT-BC98455 | Symphyotrichum spathulatum | F. W. Peirson | 1924-9-2 | 5184 | San Bernardino | Fish Camp, San Bernardino Mts. | 2057 | Comment | ||
| JEPS10613 | Hymenothrix dissecta | Frank W. Peirson | 1914-2 | 3282 | San Bernardino | South Fork of the Santa Ana River San Bernardino Mountains, South Fork of the Santa Ana River | 2621 | Comment | ||
| JEPS11099 | Penstemon rostriflorus | Frank W. Peirson | 1918-7-7 | 203 | San Bernardino | Icehouse Canyon San Gabriel Mountains, Icehouse Canyon | 2286 | Comment | ||
| JEPS13534 | Kopsiopsis strobilacea | Frank W. Peirson | 1920-5-29 | 523 | San Bernardino | Ontario Ridge San Gabriel Mountains. | 2590 | Comment | ||
| JEPS1430 | Nama californica | Frank W. Peirson | 1921-5-29 | 2421 | San Bernardino | n slope Cajon Pass; San Gabriel Mountains, n slope Cajon Pass | 1097 | Comment | ||
| JEPS1529 | Phacelia curvipes | Frank W. Peirson | 1921-5-29 | 2431 | San Bernardino | n slope San Gabriel Mountains, Cajon Pass | 1097 | Comment Read comments Jun 3 2010 |
||
| JEPS15754 | Conium maculatum | Frank W. Peirson | 1920-5-18 | 2115 | San Bernardino | San Gabriel Mountains, Lytle Creek Lytle Creek; San Gabriel Mountains, Lytle Creek | 1066 | Comment | ||
| JEPS15885 | Corethrogyne filaginifolia | Frank W. Peirson | 1929-10-11 | 8600 | San Bernardino | 2 mi w Bear Lake Dam (City Cr. Road); San Bernardino Mts. | 2133 | Comment | ||
| JEPS15886 | Corethrogyne filaginifolia | Frank W. Peirson | 1926-9-5 | 7072 | San Bernardino | along shore Arrowhead Lake; San Bernardino Mts., Arrowhead Lake | 1524 | Comment | ||
| JEPS15887 | Corethrogyne filaginifolia | Frank W. Peirson | 1926-9-5 | 7073 | San Bernardino | on shore of Lake Arrowhead; Arrowhead Lake | 1524 | Comment | ||
| JEPS16107 | Lomatium dissectum var. multifidum | Frank W. Peirson | 1920-5-19 | 2153 | San Bernardino | San Gabriel Mts., Coldwater Canyon | 1676 | Comment | ||
| JEPS16610 | Heuchera abramsii | Frank W. Peirson | 1922-7-21 | 3207 | San Bernardino | San Antonio Peak; San Antonio Mountains | 2956 | Comment | ||
| JEPS1679 | Hesperochiron californicus | Frank W. Peirson | 1924-5-16 | 4585 | San Bernardino | e. end Bear Lake; San Bernardino Mts. | Comment | |||
| JEPS17474 | Hydrocotyle umbellata | Frank W. Peirson | 1920-5-18 | 2141 | San Bernardino | San Gabriel Mts., Lytle Creek | Comment | |||
| JEPS1804 | Nemophila menziesii var. integrifolia | Frank W. Peirson | 1919-4-16 | 364 | San Bernardino | Cajon Pass , Cajon Pass (San Gabriel Mountains) | 685 | Comment | ||
| JEPS18567 | Brickellia microphylla var. microphylla | Frank W. Peirson | 1920-9-15 | 2279 | San Bernardino | North Fork of Lytle Creek, San Gabriel Mountains San Gabriel Mountains, North Fork Lytle Creek | 1828 | Comment | ||
| JEPS19269 | Arida arizonica | Frank W. Peirson | 1928-4-1 | 7758 | San Bernardino | 8 mi n Baker; Silver Lake | Comment | |||
| JEPS20067 | Amorpha californica var. californica | Frank W. Peirson | 1929-7-11 | 8454 | San Bernardino | ridge back of public Auto Camp; San Bernardino Mts., Fawnskin | 2072 | Comment | ||
| JEPS20502 | Pseudognaphalium thermale | Frank W. Peirson | 1929-10-11 | 8599 | San Bernardino | 2 mi w of Bear Lake Dam; San Bernardino Mts., City Cr. Road | 2133 | Comment | ||
| JEPS2130 | Phacelia austromontana | Frank W. Peirson | 1919-6-4 | 506 | San Bernardino | Icehouse Canyon San Gabriel Mountains, Mount San Antonio | 2057 | Comment | ||
| JEPS21532 | Ericameria parryi var. aspera | Frank W. Peirson | 1924-9-1 | 5168 | San Bernardino | near Arrastre Flat; San Bernardino Mts., Holcomb Valley | 2286 | Comment | ||
| JEPS22361 | Erigeron parishii | Frank W. Peirson | 1926-5-29 | 6736 | San Bernardino | Cushenberry Grade; roadside, near type locality | 1295 | Comment | ||
| JEPS27095 | Caulanthus amplexicaulis | Frank W. Peirson | 1918-7-8 | 64 | San Bernardino | Baldy east trail San Gabriel Mountains, Mt. San Antonio (Mt. San Antonio) | 2590 | Comment | ||
JEPS2722  |
Allium monticola | Frank W. Peirson | 1918-7-8 | 3 | San Bernardino | Baldy e trail Mt. San Antonio (Mt. San Antonio) | 2865 | Comment | ||
| JEPS31302 | Ericameria linearifolia | Frank W. Peirson | 1919-4-16 | 366 | San Bernardino | Cajon Pass | 609 | Comment | ||
| JEPS31386 | Gentiana fremontii | Frank W. Peirson | 1909-1 | San Bernardino | South Fork Santa Ana San Bernardino Mountains | 2438 | Comment | |||
| JEPS31388 | Gentiana fremontii | Frank W. Peirson | 1922-6-22 | 3136 | San Bernardino | San Bernardino Mts, South Fork Santa Ana River South Fork Santa Ana River; San Bernardino Mts, South Fork Santa Ana River | 2377 | Comment | ||
| JEPS31871 | Symphyotrichum frondosum | Frank W. Peirson | 1924-5 | 4595 | San Bernardino | Baldwin Lake San Bernardino Mts. | 2036 | Comment | ||
| JEPS33190 | Trifolium longipes var. nevadense | Frank W. Peirson | 1924-5-16 | 4598 | San Bernardino | 2.5 mi from Dam (s side of Bear Lake); San Bernardino Mtns | Comment | |||
| JEPS34233 | Adenophyllum cooperi | Frank W. Peirson | 1922-5-12 | San Bernardino | 17 mi s of Barstow (Mohave River Road) | Comment | ||||
| JEPS36576 | Hieracium albiflorum | F. W. Peirson | 1918-7-7 | San Bernardino | 15 mi from Upland (towards Mt. San Antonio); Icehouse Canyon | 1981 | Comment | |||
| JEPS36642 | Malacothrix glabrata | F. W. Peirson | 1920-5-19 | 2149 | San Bernardino | Lytle Creek San Gabriel Mts. | 1066 | Comment | ||
| JEPS36842 | Stephanomeria pauciflora | F. W. Peirson | 1920-9-15 | 250 a | San Bernardino | Lytle Creek San Gabriel Mts., Lytle Creek | 1828 | Comment | ||
| JEPS36929 | Artemisia tridentata subsp. tridentata | Frank W. Peirson | 1920-9-15 | 1455 | San Bernardino | Lytle Creek San Gabriel Mts., Lytle Creek | 1981 | Comment | ||
| JEPS36938 | Artemisia nova | Frank W. Peirson | 1924-9-1 | 5157 | San Bernardino | San Bernardino Mts., Summit Johnsons Grade | 2087 | Comment | ||
| JEPS37419 | Senecio fremontii var. occidentalis | Frank W. Peirson | 1923-8-24 | 3994 | San Bernardino | near summit San Gorgonio | 3352 | Comment | ||
| JEPS38087 | Tetradymia canescens | F. W. Peirson | 1920-9-15 | 1431 | San Bernardino | North Fork Lytle Creek, sw San Bernerdino Mts. San Gabriel Mts. | 1828 | Comment | ||
| JEPS38526 | Salix exigua | F. W. Peirson | 1918-7-9 | 14 | San Bernardino | San Antonio Canyon | 1341 | Comment | ||
| JEPS39250 | Epilobium ciliatum subsp. glandulosum | Frank W. Peirson | 1920-9-14 | 2304 | San Bernardino | Coldwater Cienega San Gabriel Mts. (tributary of Lytle Creek) | 2133 | Comment | ||
| JEPS39342 | Epilobium glaberrimum subsp. glaberrimum | F. W. Peirson | 1918-7-7 | 124 | San Bernardino | Icehouse Canyon San Gabriel Mts. | 1981 | Comment | ||
| JEPS41455 | Erigeron breweri var. breweri | F. W. Peirson | 1922-8-22 | 3291 | San Bernardino | near stream; San Bernardino Mountains, Santa Ana River,South Fork; data in packet includes This looks to me like 3204... | 2560 | Comment | ||
| JEPS41668 | Heuchera elegans | Frank W. Peirson | 1918-7-7 | 68 | San Bernardino | Ontario Ridge near Ontario Peak; Ontario Ridge | 2438 | Comment | ||
| JEPS42581 | Phoradendron villosum | Frank W. Peirson | 1918-8-16 | 31 | San Bernardino | San Antonio Canyon | 1371 | Comment | ||
| JEPS42752 | Mentzelia desertorum | Frank W. Peirson | 1928-4-1 | 7764 | San Bernardino | 33 mi n Baker | Comment | |||
| JEPS42938 | Fraxinus velutina | Frank W. Peirson | 1920-5-18 | 2144 | San Bernardino | Lytle Creek San Gabriel Mountains | 762 | Comment | ||
| JEPS43177 | Claytonia parviflora subsp. viridis | F. W. Peirson | 1920-5-19 | 2148 | San Bernardino | Lytle Creek tributary Coldwater Canyon (Coldwater Canyon) | 1676 | Comment | ||
| JEPS44275 | Drymocallis glandulosa var. viscida | Frank W. Peirson | 1918-7-7 | 81 | San Bernardino | Icehouse Canyon San Gabriel Mts., Icehouse Canyon | 1981 | Comment | ||
| JEPS44462 | Potentilla wheeleri | F. W. Peirson | 1922-6-22 | 3113 | San Bernardino | South Fork Santa Ana River | 2346 | Comment | ||
| JEPS44520 | Horkelia rydbergii | Frank W. Peirson | 1923-8-23 | 3976 | San Bernardino | 1/4 mi w High Creek; San Gabriel Mountains | 2743 | Comment Read comments Jul 28 2016 |
||
| JEPS44523 | Horkelia rydbergii | Frank W. Peirson | 3286 | San Bernardino | San Bernardino Mountains, South Fork Santa Ana River | 2377 | Comment | |||
| JEPS44599 | Sibbaldia procumbens | F. W. Peirson | 2262 | San Bernardino | Foxesee Creek; San Bernardino Mts., Santa Ana River | 2743 | Comment | |||
| JEPS44626 | Prunus fasciculata | Frank W. Peirson | 1922-5-12 | 1987 | San Bernardino | Cajon Pass; San Gabriel Range, Cajon Pass | 1981 | Comment | ||
| JEPS44951 | Prunus emarginata | F. W. Peirson | 1920-5-19 | 2152 | San Bernardino | San Gabriel Mountains, Coldwater Canyon, Lytle Creek tributary Coldwater Canyon; San Gabriel Mountains, Coldwater Canyon | 1798 | Comment | ||
| JEPS45920 | Carex subfusca | Frank W. Peirson | 1922-7-18 | 1621 | San Bernardino | Kelly's Cabin San Gabriel Mts., Ontario Peak, Kelly's Cabin | 2499 | Comment | ||
| JEPS47602 | Allium burlewii | Frank W. Peirson | 1918-7-17 | 4 | San Bernardino | Summit North Baldy, Mt. San Antonio North Baldy, Mt. San Antonio | Comment | |||
| JEPS47603 | Allium burlewii | Frank W. Peirson | 1918-7-7 | 266 | San Bernardino | Summit Ontario Ridge Ontario Ridge | 2621 | Comment | ||
| JEPS48036 | Sedum niveum | Frank W. Peirson | 1924-7-14 | 4951 | San Bernardino | Lost Creek San Bernardino Mts., Lost Creek (on rocky sides canyon) | 2438 | Comment | ||
| JEPS48037 | Sedum niveum | Frank W. Peirson | 1920-8-26 | 2298 | San Bernardino | San Bernardino Mts., crest e of Foresee | 1676 | Comment Read comments Jan 2 2012 |
||
| JEPS48043 | Sedum niveum | Frank W. Peirson | 1922-8-24 | 3293 | San Bernardino | rocky ledge above Dollar Lake; San Bernardino Mountains, Dollar Lake | 2834 | Comment | ||
| JEPS48057 | Sedum niveum | Frank W. Peirson | 1924-7-14 | 4951 | San Bernardino | Lost Creek , Lost Creek (San Bernardino Mountains) | 2438 | Comment | ||
| JEPS48058 | Sedum niveum | Frank W. Peirson | 1920-8-26 | 2298 | San Bernardino | creek e Foresee (on Road 5500); San Bernardino Mountains, e of Foresee | Comment Read comments Jan 2 2012 |
|||
| JEPS48969 | Sisyrinchium bellum | Frank W. Peirson | 1918-7-8 | 11 | San Bernardino | San Antonio Canyon | 1828 | Comment | ||
| JEPS49178 | Ribes roezlii | Frank W. Peirson | 1918-7-8 | 70 | San Bernardino | Mt. San Antonio, East trail San Gabriel Mountains | 2865 | Comment | ||
| JEPS49761 | Cycladenia humilis var. venusta | Frank W. Peirson | 1918-7-8 | 147 | San Bernardino | Baldy, Mt. San Antonio | 2590 | Comment | ||
| JEPS5072 | Asclepias vestita | Frank W. Peirson | 1921-5-29 | 887 | San Bernardino | Cajon Pass Summit; San Gabriel Mountains | 1219 | Comment Read comments Nov 30 2015 |
||
| JEPS50881 | Silene verecunda | Frank W. Peirson | 1920-9-15 | 2284 | San Bernardino | Baldy n slope San Gabriel Mountains, Baldy n slope | 2819 | Comment | ||
| JEPS50883 | Silene verecunda | Frank Peirson | 1918-7-7 | 40 | San Bernardino | Ontario Ridge San Antonio Range, Ontario Ridge | 2438 | Comment | ||
| JEPS5094 | Asclepias albicans | Frank W. Peirson | 1935-4-18 | 11503 | San Bernardino | n part of Range near the road going down into Copper Basin; Whipple Mts. | 457 | Comment | ||
| JEPS50992 | Silene parishii | Frank W. Peirson | 1918-8-17 | 38 | San Bernardino | Baldy Devil's Backbone, Baldy | 2438 | Comment Read comments Jan 4 2012 |
||
| JEPS51047 | Sagina saginoides | Frank W. Peirson | 1918-7-7 | 45 | San Bernardino | near a spring at Kelly's Cabin (Ontario Ridge); Ontario Ridge | 2499 | Comment | ||
| JEPS51152 | Stellaria calycantha | Frank W. Peirson | 1923-8-23 | 4158 | San Bernardino | High Creek; San Bernardino Mts. | Comment | |||
| JEPS51408 | Arenaria lanuginosa subsp. saxosa | Frank W. Peirson | 1923-8-22 | 3975 | San Bernardino | Vivian Creek Camp | 2194 | Comment | ||
| JEPS51487 | Arenaria ursina | Frank W. Peirson | 1926-5-30 | 4578 | San Bernardino | low hills n end Baldwin Lake; low hills n end Baldwin Lake | 2042 | Comment | ||
| JEPS51797 | Eschscholzia minutiflora | Frank W. Peirson | 1930-4-16 | 8739 | San Bernardino | Cima Rd 6 mi s summit | Comment | |||
| JEPS52508 | Calyptridium umbellatum | Frank W. Peirson | 1918-7-7 | 34 | San Bernardino | Ontario Ridge | 2621 | Comment | ||
| JEPS53094 | Arabis parishii | Frank W. Peirson | 1922-6-23 | 3101 | San Bernardino | summit & eastward along ridge Sugarloaf Peak; San Bernardino Mts., Sugarloaf Peak | 2971 | Comment | ||
| JEPS53491 | Draba corrugata var. corrugata | Frank W. Peirson | 1918-7-7 | 57 | San Bernardino | Ontario Ridge | 2438 | Comment | ||
| JEPS53808 | Rorippa nasturtium-aquaticum | Frank W. Peirson | 1919-4-16 | 372 | San Bernardino | Cajon Pass San Gabriel Mountains, Cajon Pass | 685 | Comment | ||
| JEPS54597 | Astragalus douglasii var. parishii | F. W. Peirson | Oct. 1933 | San Bernardino | Bear Lake , Bear Lake (San Bernardino Mts.) | Comment | ||||
| JEPS54609 | Astragalus douglasii var. parishii | Frank W. Peirson | 1922-6-21 | 4754 | San Bernardino | Santa Ana River San Bernardino Mts., Santa Ana River | 2011 | Comment | ||
| JEPS55447 | Lotus grandiflorus var. grandiflorus | Frank W. Peirson | 1918-6-18 | 102 | San Bernardino | Summit Cajon Pass | Comment | |||
| JEPS55755 | Lotus procumbens var. procumbens | Frank W. Peirson | 1918-6-18 | 101 | San Bernardino | Summit Cajon Pass San Gabriel Mountains | Comment | |||
| JEPS56145 | Eriogonum viridescens | Frank Peirson | 1921-12-18 | 2645 | San Bernardino | 24 mi n, on Granite Wells Road Barstow (in a wire-fence enclosure about a deerted shack, marked Post-Office); Mojave Desert | Comment | |||
| JEPS56177 | Eriogonum umbellatum var. minus | Frank W. Peirson | 1918-8-17 | 21 | San Bernardino | Baldy ( = Mt. San Antonio) | 2438 | Comment | ||
| JEPS56178 | Eriogonum umbellatum var. munzii | Frank W. Peirson | 1922-7-7 | 3177 | San Bernardino | Sheep Creek | 1615 | Comment | ||
| JEPS56247 | Eriogonum thurberi | Frank W. Peirson | 1921-7-4 | 2487 | San Bernardino | Cajon Pass San Gabriel Mountains | Comment | |||
| JEPS56307 | Eriogonum saxatile | Frank W. Peirson | 1918-7-8 | 25 | San Bernardino | Baldy (Mt. San Antonio) | 2743 | Comment | ||
| JEPS56308 | Eriogonum saxatile | Frank W. Peirson | 1918-7-7 | 24 | San Bernardino | Icehouse Canyon | 2286 | Comment | ||
| JEPS56813 | Eriogonum kennedyi var. alpigenum | Frank W. Peirson | 1922-8-23 | San Bernardino | San Gorgonio; summit | Comment | ||||
| JEPS56873 | Eriogonum heermannii var. argense | F. W. Peirson | 1922-5-13 | 2963 | San Bernardino | Pilot Knob Mohave Desert | 1524 | Comment | ||
| JEPS57517 | Eriogonum hirtiflorum | Frank W. Peirson | 1916-7-4 | 1730 | San Bernardino | Rim Road from little Bear Lake to Big Bear Lake; San Bernardino Mountains | Comment | |||
| JEPS57776 | Chorizanthe watsonii | F. W. Peirson | 1922-6-25 | 3131 | San Bernardino | Foxesee (Forsee) Creek San Bernardino Mountains, Foxesee (Forsee) Creek | 1828 | Comment | ||
| JEPS57998 | Oxytheca trilobata | Frank W. Peirson | 1918-6-18 | 28 | San Bernardino | Cajon grade summit San Gabriel Mts. | Comment | |||
| JEPS58289 | Linanthus breviculus | Frank W. Peirson | 1921-5-29 | 2420 | San Bernardino | Cajon Pass, n slope San Gabriel Mountains | 1097 | Comment | ||
| JEPS5840 | Claytonia lanceolata var. peirsonii | Frank W. Peirson | 1920-5-19 | 2151 | San Bernardino | Devil's Backbone Ridge; San Gabriel Mountains | 2133 | Comment | ||
| JEPS58802 | Pyrola dentata | Frank W. Peirson | 1919-6-4 | 519 | San Bernardino | Icehouse Canyon | 2194 | Comment | ||
| JEPS58871 | Chimaphila umbellata | F. W. Peirson | 1922-8-24 | San Bernardino | Dollar Lake region San Bernardino Mts., Dollar Lake region | 2682 | Comment | |||
| JEPS59097 | Sarcodes sanguinea | Frank W. Peirson | 1919-6-4 | 460 | San Bernardino | San Gabriel Mts., Icehouse Canyon | 2133 | Comment | ||
| JEPS59745 | Chenopodium glaucum | Frank W. Peirson | 1924-9-1 | 4915 | San Bernardino | Baldwin Lake San Bernardino Mts. (n shore) | 2036 | Comment | ||
| JEPS59833 | Monolepis spathulata | F. W. Peirson | 3287 | San Bernardino | Cienega Seca Creek; San Bernardino Mts., Cienega Seca Creek | 2255 | Comment | |||
| JEPS60408 | Aquilegia formosa | Frank W. Peirson | 1918-7-9 | 47 | San Bernardino | San Antonio Canyon | 1981 | Comment | ||
| JEPS61293 | Mirabilis pumila | Frank W. Peirson | 1922-8-27 | 3288 | San Bernardino | Santa Ana River; San Bernardino Mts, Santa Ana River | 1432 | Comment | ||
| JEPS6302 |
Physaria kingii subsp. bernardina | Frank W. Peirson | 1924-5 | 4600 | San Bernardino | East end Bear Lake, San Bernardino Mountains. | 2042 | Comment | ||
| JEPS63184 | Trichostema parishii | Frank W. Peirson | 1918-6-19 | 176 | San Bernardino | Cajon | Comment | |||
| JEPS63300 | Teucrium glandulosum | Frank W. Peirson | 1935-4-18 | 11504 | San Bernardino | n part Whipple Mts. | Comment | |||
| JEPS63356 | Monardella macrantha | Frank W. Peirson | 1933-7-12 | 10704 | San Bernardino | City Creek San Bernardino Mts. | Comment | |||
| JEPS64321 | Corallorhiza maculata | Frank W. Peirson | 1922-7-18 | 3212 | San Bernardino | Kelly's Cabin San Gabriel Mountains, Ontario Ridge | 2468 | Comment | ||
| JEPS64494 | Malaxis monophyllos subsp. brachypoda | Frank W. Peirson | 1922-8-25 | 2271 | San Bernardino | South Fork Santa Ana River San Bernardino Mountains, South Fork Santa Ana River | 2438 | Comment | ||
| JEPS64551 | Populus fremontii subsp. fremontii | Frank W. Peirson | 1921-7-17 | 2513 | San Bernardino | Lytle Creek; San Gabriel Mountains, Lytle Creek | 1981 | Comment | ||
| JEPS65058 | Lupinus concinnus | Frank W. Peirson | 1919-4-16 | 371 | San Bernardino | Cajon Pass | 685 | Comment | ||
| JEPS66921 | Juncus bufonius | Frank W. Peirson | 1920-5-20 | 1643 | San Bernardino | Lytle Creek San Gabriel Mountains | Comment | |||
| JEPS67000 | Juncus duranii | Frank W. Peirson | 1918-7-7 | 1639 | San Bernardino | Kelly's Cabin San Gabriel Mountains, Ontario Ridge | Comment Read comments Nov 9 2010 |
|||
| JEPS67031 | Juncus macrophyllus | Frank W. Peirson | 1920-5-18 | 2139 | San Bernardino | Lytle Creek San Gabriel Mountains | Comment | |||
| JEPS6763 | Cordylanthus nevinii | Frank W. Peirson | 1920-9-15 | 2248 | San Bernardino | Lytle Creek San Gabriel Mountains | 1828 | Comment | ||
| JEPS67967 | Cryptantha micrantha | Frank W. Peirson | 1919-4-16 | 370 | San Bernardino | Cajon Pass San Gabriel Mountains | 685 | Comment | ||
| JEPS68230 | Pectocarya setosa | Frank W. Peirson | 1919-4-16 | 363 | San Bernardino | Cajon Pass | 762 | Comment | ||
| JEPS69714 | Saltugilia splendens subsp. grantii | Frank W. Peirson | 1919-6-4 | 457 | San Bernardino | Icehouse Canyon San Gabriel Mountains, Icehouse Canyon | 1676 | Comment | ||
| JEPS69857 | Leptodactylon pungens | Frank W. Peirson | 1918-7-7 | 152 | San Bernardino | Ontario Ridge; San Gabriel Mts., Ontario Ridge | 2590 | Comment | ||
| JEPS69867 | Leptodactylon pungens | Frank W. Peirson | 1922-6-23 | 3348 | San Bernardino | (Santa Ana Tributary) Holcomb Creek (San Bernardino Mts.); , Holcomb Creek (Santa Ana Tributary) | 2590 | Comment | ||
| JEPS7064 | Collinsia torreyi var. brevicarinata | Frank W. Peirson | 1919-6-4 | 454 | San Bernardino | Icehouse Canyon Divide; San Gabriel Mtns | 2407 | Comment | ||
| JEPS7542 | Penstemon X parishii | F. W. Peirson | 1921-5-30 | 2429 | San Bernardino | road to Lone Pine Canyon SAn Gabriel Mountains, road to Lone Pine Canyon (San Gabriel Mountains) | 990 | Comment | ||
| JEPS8269 | Mimulus rubellus | Frank W. Peirson | 1920-5-19 | 1124 | San Bernardino | Devil's Backbone Ridge San Gabriel Mountains | 1981 | Comment | ||
| JEPS88975 | Dudleya abramsii subsp. affinis | Frank W. Peirson | 1933-6-24 | 8972 | San Bernardino | ridge s summit of Johnson Grade; San Bernardino Mtns | 2133 | Comment | ||
| JEPS9474 | Galium angustifolium subsp. gabrielense | F. W. Peirson | 1918-5-27 | 216 | San Bernardino | San Antonio Canyon | 1371 | Comment | ||
| JEPS9916 | Lasthenia gracilis | F. W. Peirson | 1919-4-16 | 389 | San Bernardino | Cajon Pass | 685 | Comment | ||
| LA38974 | Mimulus mohavensis | Frank W. Peirson; | 1922-5-14 | 2982 | San Bernardino | Half way Barstow to Victorville, River Rd | Comment | |||
| NY342209 | Claytonia lanceolata var. peirsonii | F. W. Peirson | 1930-5-29 | s.n. | San Bernardino | Near Kelly's cabin, Ontario Ridge, San Antonio Mountains | Comment | |||
| OBI50445 | Thelypodium stenopetalum | Frank W. Peirson | 1933-1 | San Bernardino | Comment | |||||
| PASA1040 | Veronica serpyllifolia var. humifusa | Frank W. Peirson | 1922-6-22 | San Bernardino | South Fork Santa Ana Meadows, San Bernardino Mts. | 2346 | Comment | |||
| PASA1072 | Lotus argyraeus | Frank W. Peirson | 1922-6-21 | San Bernardino | Santa Ana River, San Bernardino Mts. | Comment | ||||
| PASA1082 | Lotus eriophorus var. heermannii | Frank W. Peirson | 1920-9-15 | San Bernardino | North Fork Lytle Creek | 1981 | Comment | |||
| PASA1124 | Scutellaria angustifolia | Frank W. Peirson | 1922-6-5 | San Bernardino | Barton Flats Region, San Bernardino Mts. | 1981 | Comment | |||
| PASA1135 | Monardella australis | Frank W. Peirson | 1926-9-5 | San Bernardino | Arrowhead Lake, San Bernardino Mts. | 1523 | Comment | |||
| PASA1208 | Agrimonia gryposepala | Frank W. Peirson | 1924-7-16 | San Bernardino | Potato Canyon | 1280 | Comment | |||
| PASA1221 | Cercocarpus ledifolius | Frank W. Peirson | 1924-7-5 | San Bernardino | Gold Mountain near Baldwin Lake, San Bernardino Mts. | 2133 | Comment | |||
| PASA1245 | Poa atropurpurea | Frank W. Peirson | 1924-5-16 | San Bernardino | South side Bear Lake, 2 miles from Dam, San Bernardino Mts. | 2057 | Comment | |||
| PASA1249 | Bromus porteri | Frank W. Peirson | 1930-7-1 | San Bernardino | Southwest shore of Baldwin Lake, San Bernardino Mts. | 2042 | Comment | |||
| PASA1250 | Stipa comata | Frank W. Peirson | 1930-7-1 | San Bernardino | Southwest shore of Baldwin Lake, San Bernardino Mts. | 2042 | Comment | |||
| PASA1258 | Iris missouriensis | Frank W. Peirson | 1930-7-3 | San Bernardino | Road to Fish Hatchery south of Baldwin Lake, San Bernardino Mts. | 2194 | Comment | |||
| PASA1284 | Stellaria longipes | Frank W. Peirson | 1922-6-22 | San Bernardino | South Fork Santa Ana River, San Bernardino Mts. | 2377 | Comment | |||
| PASA1302 | Silene menziesii | Frank W. Peirson | 1930-7-4 | San Bernardino | Greene Creek, north slope sugarloaf, San Bernardino Mts. | 2346 | Comment | |||
| PASA1305 | Silene platyota | Frank W. Peirson | 1930-7-4 | San Bernardino | Greene Creek, north slope sugarloaf, San Bernardino Mts. | 2438 | Comment | |||
| PASA1311 | Arenaria macradenia | Frank W. Peirson | 1930-7-2 | San Bernardino | Ridge south of summit of Johnson's Grade, San Bernardino Mts. | 2103 | Comment | |||
| PASA1331 | Phacelia ramosissima | Frank W. Peirson | 1930-7-3 | San Bernardino | Road to Fish Hatchery south of Baldwin Lake, San Bernardino Mts. | 2194 | Comment | |||
| PASA1378 | Phacelia curvipes | Frank W. Peirson | 1930-7-2 | San Bernardino | Ridge south of summit of Johnson's Grade, San Bernardino Mts. | 2133 | Comment | |||
| PASA1473 | Eriogonum kennedyi | Frank W. Peirson | 1930-7-2 | San Bernardino | Ridge south of summit of Johnson's Grade, San Bernardino Mts. | 2103 | Comment | |||
| PASA1475 | Eriogonum molestum var. davidsonii | Frank W. Peirson | 1930-7-5 | San Bernardino | Quarry northwest of Baldwin Lake, San Bernardino Mts. | 2072 | Comment | |||
| PASA1514 | Viola blanda | Frank W. Peirson | 1922-6-22 | San Bernardino | South Fork Santa Ana River, San Bernardino Mts. | 2346 | Comment | |||
| PASA1543 | Viola purpurea var. pinetorum | Frank W. Peirson | 1920-5-29 | San Bernardino | Ontario Ridge, San Antonio Region | 2590 | Comment | |||
| PASA1565 | Nicolletia occidentalis | Frank W. Peirson | 1930-4-13 | San Bernardino | 10 miles sout of Garlic Spring, Mohave Desert | Comment | ||||
| PASA159 | Orthocarpus purpurascens var. venustus | Frank W. Peirson | 1922-5-12 | San Bernardino | 15 miles north of Victoryville | Comment | ||||
| PASA1635 | Wislizenia refracta | Frank W. Peirson | 1928-4-26 | San Bernardino | Twenty-nine Palms | Comment | ||||
| PASA1700 | Solidago californica | Frank W. Peirson | 1924-9-2 | San Bernardino | Fish Camp, City Creek Road, San Bernardino Mts. | 2057 | Comment | |||
| PASA1716 | Erigeron breweri | Frank W. Peirson | 1930-7-7 | San Bernardino | Arrastre Flat, San Bernardino Mts. | 2285 | Comment | |||
| PASA1717 | Erigeron breweri | Frank W. Peirson | 1930-7-4 | San Bernardino | Greene Creek, north slope sugarloaf, San Bernardino Mts. | 2514 | Comment | |||
| PASA1718 | Erigeron breweri | Frank W. Peirson | 1930-7-7 | San Bernardino | Arrastre Flat, San Bernardino Mts. | 2285 | Comment | |||
| PASA1719 | Erigeron canadensis | Frank W. Peirson | 1920-8-24 | San Bernardino | Santa Ana River, San Bernardino Mts. | 1920 | Comment | |||
| PASA1724 | Erigeron divergens | Frank W. Peirson | 1930-7-1 | San Bernardino | Southwest shore of Baldwin Lake, San Bernardino Mts. | 2042 | Comment | |||
| PASA1725 | Erigeron divergens | Frank W. Peirson | 1930-7-2 | San Bernardino | North shore of Baldwin Lake, San Bernardino Mts. | 2042 | Comment | |||
| PASA1737 | Gutierrezia lucida | Frank W. Peirson | 1924-8-31 | San Bernardino | Box S. Spring | 1081 | Comment | |||
| PASA1738 | Gutierrezia sarothrae | Frank W. Peirson | 1920-8-23 | San Bernardino | Santa Ana River, San Bernardino Mts. | Comment | ||||
| PASA1744 | Sidalcea hickmanii var. parishii | Frank W. Peirson | 1922-6-24 | San Bernardino | Foxsee Creek, San Bernardino Mts. | 1828 | Comment | |||
| PASA1754 | Sidalcea pedata | Frank W. Peirson | 1924-5-15 | San Bernardino | Baldwin Lake, San Bernardino Mts. | Comment | ||||
| PASA1761 | Sphaeralcea fendleri var. californica | Frank W. Peirson | 1922-5-13 | San Bernardino | Granite Wells, Mohave Desert | Comment | ||||
| PASA1796 | Acamptopappus sphaerocephalus | Frank W. Peirson | 1930-4-29 | San Bernardino | Box S. Spring | 1081 | Comment | |||
| PASA1802 | Aster canescens | Frank W. Peirson | 1922-8-23 | San Bernardino | South Fork Santa Ana River, San Bernardino Mts. | 2560 | Comment | |||
| PASA1807 | Corethrogyne filaginifolia | Frank W. Peirson | 1924-5-14 | San Bernardino | Near mouth of Lytle Creek Canyon | 609 | Comment | |||
| PASA1809 | Corethrogyne filaginifolia | Frank W. Peirson | 1920-9-13 | San Bernardino | San Antonio Canyon, San Gabriel Mts. | 1523 | Comment | |||
| PASA1810 | Corethrogyne filaginifolia | Frank W. Peirson | 1922-8-25 | San Bernardino | South Fork Santa Ana River, San Bernardino Mts. | 2499 | Comment | |||
| PASA1812 | Corethrogyne filaginifolia | Frank W. Peirson | 1926-9-5 | San Bernardino | Arrowhead Lake, San Bernardino Mts. | 1523 | Comment | |||
| PASA1813 | Corethrogyne filaginifolia | Frank W. Peirson | 1924-9-2 | San Bernardino | Fish Camp, San Bernardino Mts. | 2057 | Comment | |||
| PASA1838 | Velaea parishii | Frank W. Peirson | 1930-7-5 | San Bernardino | Road from Bear Lake to Holomb Valley, San Bernardino Mts. | 2133 | Comment | |||
| PASA1895 | Epilobium glaberrimum | Frank W. Peirson | 1920-9-14 | San Bernardino | Coldwater Fork Lytle Creek at Cienega | 213 | Comment Read comments Jan 28 2017 |
|||
| PASA2062 | Streptanthus major | Frank W. Peirson | 1933-6-24 | San Bernardino | East shore, Baldwin Lake, San Bernardino Mts. | 2057 | Comment | |||
| PASA2106 | Nama rothrockii | Frank W. Peirson | 1931-7-9 | San Bernardino | North rim of Holcomb Valley, San Bernardino Mtns, at Arctic Canyon | 2346 | Comment | |||
| PASA2107 | Nama rothrockii | Frank W. Peirson | 1930-7-7 | San Bernardino | Arrastre Flat, San Bernardino Mts. | 2285 | Comment | |||
| PASA2122 | Nemophila spatulata | Frank W. Peirson | 1922-6-24 | San Bernardino | Santa Ana River, San Bernardino Mts. | 1950 | Comment | |||
| PASA2164 | Brickellia microphylla | Frank W. Peirson | 1920-9-15 | San Bernardino | Lytle Creek, San Gabriel Mts. | 1828 | Comment | |||
| PASA220 | Psoralea rigida | Frank W. Peirson | 1930-7-3 | San Bernardino | Road to Fish Hatchery south of Baldwin Lake, San Bernardino Mts. | Comment | ||||
| PASA2204 | Dyssodia cooperi | Frank W. Peirson | 1930-5-31 | San Bernardino | Summit of grade above Warrens Well | Comment | ||||
| PASA2213 | Eriophyllum lanatum var. monoense | Frank W. Peirson | 1930-7-7 | San Bernardino | Holcomb Valley, San Bernardino Mts. | 2285 | Comment | |||
| PASA2214 | Eriophyllum lanatum var. obovatum | Frank W. Peirson | 1930-7-7 | San Bernardino | Holcomb Valley, San Bernardino Mts. | 2285 | Comment | |||
| PASA2240 | Parnassia cirrata | Frank W. Peirson | 1923-8-24 | San Bernardino | Vivian Creek, San Bernardino Mts. | 2438 | Comment | |||
| PASA2246 | Ribes cereum | Frank W. Peirson | 1922-6-23 | San Bernardino | South slope Sugarloaf Peak, San Bernardino Mountains | 2895 | Comment | |||
| PASA2276 | Anaphalis margaritacea var. occidentalis | Frank W. Peirson | 1923-8-21 | San Bernardino | Small canyon southeast of Forest Home. Mill Creek, San Bernardino Mts. | 1828 | Comment | |||
| PASA2279 | Antennaria dioica | Frank W. Peirson | 1930-7-4 | San Bernardino | Greene Creek, north slope Sugarloaf, San Bernardino Mts. | 2590 | Comment | |||
| PASA2280 | Antennaria dioica | Frank W. Peirson | 1922-6-22 | San Bernardino | South Fork Santa Ana River, San Bernardino Mts. | 2346 | Comment | |||
| PASA2286 | Gnaphalium palustre | Frank W. Peirson | 1930-7-7 | San Bernardino | Holcomb Valley, San Bernardino Mts. | 2255 | Comment | |||
| PASA2289 | Gnaphalium thermale | Frank W. Peirson | 1926-9-5 | San Bernardino | Arrowhead Lake, San Bernardino Mts. | 1523 | Comment | |||
| PASA2303 | Hemizonia wheeleri | Frank W. Peirson | 1930-7-7 | San Bernardino | Arrastre Flat, San Bernardino Mts. | 2285 | Comment | |||
| PASA2374 | Acer negundo var. californicum | Frank W. Peirson | 1924-7-16 | San Bernardino | Oak Glen, south base San Bernardino Mts. | 1462 | Comment | |||
| PASA2375 | Acer glabrum | Frank W. Peirson | 1930-7-4 | San Bernardino | Greene Creek, north slope Sugarloaf, San Bernardino Mts. | 2438 | Comment | |||
| PASA2376 | Acer glabrum | Frank W. Peirson | 1930-7-4 | San Bernardino | Greene Creek, north slope Sugarloaf, San Bernardino Mts. | 2438 | Comment | |||
| PASA2574 | Cotyledon | Frank W. Peirson | 1930-7-2 | 8972 | San Bernardino | Ridge south of summit of Johnson's Grade, San Bernadino Mountains | 2133 | Comment | ||
| PASA2633 | Ranunculus californicus var. ludovicianus | Frank W. Peirson | 1924-5-15 | 4560 | San Bernardino | Baldwin Lake, San Bernadino Mtns. | 2035 | Comment | ||
| PASA2636 | Ranunculus cymbalaria | Frank W. Peirson | 1930-7-1 | 8963 | San Bernardino | Southwest shore of Baldwin Lake, San Bernadino Mtns. | 2042 | Comment | ||
| PASA2639 | Ranunculus eschscholtzii var. oxynotus | Frank W. Peirson | 1920-8-22 | 1877 | San Bernardino | Foxesee (or Forsee) Creek, San Bernadino Mtns. | 2666 | Comment | ||
| PASA2661 | Arabis parishii | Frank W. Peirson | 1930-4-28 | 8752 | San Bernardino | Sugarloaf Rd. south of Baldwin Lake, San Bernadino Mtns. | 2133 | Comment | ||
| PASA2662 | Arabis platysperma | Frank W. Peirson | 1924-7-5 | 4897 | San Bernardino | Bluff Lake, San Bernadino Mtns. | 2285 | Comment | ||
| PASA2666 | Arabis pulchra | Frank W. Peirson | 1924-5-15 | 4568 | San Bernardino | Cactus Flat, San Bernadino Mtns. | 1828 | Comment | ||
| PASA2706 | Amorpha californica | Frank W. Peirson | 1930-7-7 | 9014 | San Bernardino | Road from Doble to Arrastre Flat, San Bernadino Mtns. | 2209 | Comment | ||
| PASA2708 | Astragalus acutirostris | Frank W. Peirson | 1930-5-31 | 8925 | San Bernardino | Summit of grade above Warrens Well | Comment | |||
| PASA2709 | Astragalus acutirostris | Frank W. Peirson | 1930-5-31 | 8925 | San Bernardino | Summit of grade above Warrens Well | Comment | |||
| PASA2710 | Astragalus agninus | Frank W. Peirson | 1928-4-1 | 7759 | San Bernardino | Silver Lake, about 8 miles north of Baker | Comment | |||
| PASA2712 | Astragalus bernardinus | Frank W. Peirson | 1930-5-31 | 8924 | San Bernardino | Summit of grade above Warrens Well | Comment | |||
| PASA2713 | Astragalus bernardinus | Frank W. Peirson | 1930-5-31 | 8924 | San Bernardino | Summit of grade above Warrens Well | Comment | |||
| PASA2714 | Astragalus bicristatus | Frank W. Peirson | 1931-5-16 | 4588 | San Bernardino | North side of Bear Lake, San Bernadino Mtns. | 2072 | Comment | ||
| PASA2736 | Astragalus lentiginosus var. sierrae | Frank W. Peirson | 1930-7-4 | 8991 | San Bernardino | Greene Creek, north slope Sugarloaf, San Bernadino Mtns. | 2438 | Comment | ||
| PASA2790 | Canbya candida | F. W. Peirson | 1921-5-29 | San Bernardino | North Slope, Cajon Pass | 1097 | Comment | |||
| PASA342 | Stephanomeria parryi | Frank W. Peirson | 1930-5-31 | San Bernardino | West of Adelanto, Mohave Desert | Comment | ||||
| PASA348 | Taraxacum lividum | Frank W. Peirson | 1922-6-22 | San Bernardino | South Fork Santa Ana River, San Bernardino Mts. | 2346 | Comment | |||
| PASA354 | Thelypodium cooperi | Frank W. Peirson | 1927-5-7 | San Bernardino | East of Kramer, Mohave Desert | Comment | ||||
| PASA364 | Thelypodium stenopetalum | Frank W. Peirson | 1926-5-30 | San Bernardino | Baldwin Lake, San Bernardino Mts. | 2042 | Comment | |||
| PASA382 | Lewisia nevadensis | Frank W. Peirson | 1924-5-16 | San Bernardino | South side of Bear Lake, 2_ miles from dam, San Bernardino Mts. | 2042 | Comment | |||
| PASA383 | Barbarea vulgaris | Frank W. Peirson | 1924-7-5 | San Bernardino | Bluff Lake, San Bernardino Mts. | 2285 | Comment | |||
| PASA403 | Draba corrugata | Frank W. Peirson | 1922-6-23 | San Bernardino | Sugarloaf Peak, San Bernardino Mts. | 2925 | Comment | |||
| PASA430 | Hypericum formosum | Frank W. Peirson | 1924-9-2 | San Bernardino | Fish Camp (City Creek Road), San Bernardino Mts. | 2057 | Comment | |||
| PASA454 | Eschscholzia glyptosperma | Frank W. Peirson | 1927-5-7 | San Bernardino | 1 mile east of Kramer, Mohave Desert | Comment | ||||
| PASA481 | Salvia carnosa | Frank W. Peirson | 1930-7-5 | San Bernardino | Road from Bear Lake to Holcomb Valley, San Bernardino Mts. | 2133 | Comment | |||
| PASA549 | Allium lacunosum | Frank W. Peirson | 1930-7-2 | San Bernardino | Ridge south of summit of Johnson's Grade, San Bernardino Mts. | 2133 | Comment | |||
| PASA552 | Allium parryi | Frank W. Peirson | 1930-7-7 | San Bernardino | Arrastre Flat, San Bernardino Mts. | 2285 | Comment | |||
| PASA581 | Abronia nana | Frank W. Peirson | 1930-7-5 | San Bernardino | North shore of Bear Lake, San Bernardino Mountains | Comment | ||||
| PASA651 | Distichlis spicata | Frank W. Peirson | 1930-7-1 | San Bernardino | Southwest shore of Baldwin Lake, San Bernardino Mts. | 2042 | Comment | |||
| PASA656 | Lupinus confertus | Frank W. Peirson | Jul-1930 | San Bernardino | Southwest shore of Baldwin Lake, San Bernardino Mts. | 2042 | Comment | |||
| PASA662 | Lupinus formosus var. elatus | Frank W. Peirson | 1919-6-4 | San Bernardino | Icehouse Canyon | Comment | ||||
| PASA678 | Geranium richardsonii | Frank W. Peirson | 1930-7-4 | San Bernardino | Green Creek, north slope Sugarloaf, San Bernardino Mts. | Comment | ||||
| PASA713 | Gilia pungens | Frank W. Peirson | 1930-7-3 | San Bernardino | Road to Fish Hatchery south of Baldwin Lake, San Bernardino Mts. | 2194 | Comment | |||
| PASA800 | Gilia latiflora | Frank W. Peirson | 1926-4-28 | San Bernardino | 5 miles north of Box S Spring, Mohave Desert | Comment | ||||
| PASA808 | Lupinus breweri | Frank W. Peirson | 1930-7-5 | San Bernardino | Near Peter Pan Woodland Club, San Bernardino Mts. | 2072 | Comment | |||
| PASA843 | Iva axillaris | Frank W. Peirson | 1930-7-2 | San Bernardino | North shore of Baldwin Lake, San Bernardino Mts. | 2042 | Comment | |||
| PASA857 | Penstemon caesius | Frank W. Peirson | 1930-7-4 | San Bernardino | Green Creek, north slope Sugarloaf, San Bernardino Mts. | 2499 | Comment | |||
| PASA880 | Penstemon labrosus | Frank W. Peirson | 1923-8-31 | San Bernardino | Blue Ridge, Swartout Valley Region | 2590 | Comment | |||
| PASA930 | Hieracium horridum | Frank W. Peirson | 1930-7-7 | San Bernardino | Arrastre Flat, near Holcomb Valley, San Bernardino Mts. | 2255 | Comment | |||
| PASA931 | Hieracium horridum | Frank W. Peirson | 1930-7-7 | San Bernardino | Arrastre Flat, San Bernardino Mts. | 2255 | Comment | |||
| POM11884 | Myosurus aristatus | F. W. Peirson | 1922-6-22 | 3110 | San Bernardino | South Fork of Santa Ana River. | 2378 | Comment | ||
| POM12540 | Bahia dissecta | F. W. Peirson | 1920-8-24 | 2245 | San Bernardino | Santa Ana River, San Bernardino Mts. | 1982 | Comment | ||
| POM12545 | Chimaphila umbellata subsp. occidentalis | F. W. Peirson | 1920-8-25 | 829 | San Bernardino | San Bernardino Mts. Dollar Lake region. | 2668 | Comment | ||
| POM128761 | Phacelia pachyphylla | F. W. Peirson | 1927-5-7 | s.n. | San Bernardino | 10 miles N of Barstow | Comment | |||
| POM13441 | Ephedra viridis | F. W. Peirson, I. M. Johnston | 1922-5-14 | 6510 | San Bernardino | Summit of Pilot Knob, Mojave Desert | Comment | |||
| POM13529 | Astragalus leucolobus | F. W. Peirson | 1922-6-21 | 3143 | San Bernardino | Santa Ana River | 1982 | Comment | ||
| POM13534 | Calyptridium parryi | F. W. Peirson | 1922-6-21 | s.n. | San Bernardino | Cienega Seca Creek. | 2134 | Comment | ||
| POM13540 | Veronica serpyllifolia var. humifusa | F. W. Peirson | 1922-6-22 | s.n. | San Bernardino | South Fork of Santa Ana. San Bernardino Mtns. | 2348 | Comment | ||
| POM13542 | Sidalcea hickmanii subsp. parishii | F. W. Peirson | 1922-6-24 | 4697 | San Bernardino | Foxesee Creek. | 1829 | Comment | ||
| POM13543 | Silene menziesii subsp. dorrii | F. W. Peirson | 1922-6-24 | s.n. | San Bernardino | Santa Ana River, 1/4 mile above the south fork | 1951 | Comment | ||
| POM13545 | Arenaria lanuginosa subsp. saxosa | F. W. Peirson | 1922-6-24 | s.n. | San Bernardino | South Fork of the Santa Ana River | 1921 | Comment | ||
| POM13546 | Hulsea vestita subsp. parryi | F. W. Peirson | 1922-6-24 | s.n. | San Bernardino | South Fork of the Santa Ana River | 1921 | Comment | ||
| POM13547 | Gentiana fremontii | F. W. Peirson | 1922-6-22 | 3136 | San Bernardino | South Fork of Santa Ana River. | 2378 | Comment | ||
| POM13548 | Eriogonum heermannii var. heermannii | F. W. Peirson | 1922-7-7 | s.n. | San Bernardino | Sheep Creek. | 1555 | Comment | ||
| POM14072 | Cymopterus aboriginum | F. W. Peirson, I. M. Johnston | 1922-5-14 | 6540 | San Bernardino | Northeast slope of Pilot Knob | Comment | |||
| POM142527 | Camissonia confusa | F. W. Peirson | 1919-5-30 | 2706 | San Bernardino | San Antonio Canyon, San Gabriel Mts. | 1677 | Comment | ||
| POM142529 | Camissonia confusa | F. W. Peirson | 1920-5-28 | 4701 | San Bernardino | San Antonio Canyon, San Gabriel Mts. | 1463 | Comment | ||
| POM15991 | Sibbaldia procumbens | F. W. Peirson | 3492 | San Bernardino | Foxesee Creek. | 2744 | Comment | |||
| POM162732 | Helianthus gracilentus | F. W. Peirson | 1929-8-23 | 8581 | San Bernardino | City Creek Grade below Fredalba | 1524 | Comment | ||
| POM171917 | Dudleya saxosa subsp. aloides | F. W. Peirson | 1930-5-31 | 8926 | San Bernardino | Summit of grade above Warrens Well. Little San Bern Mtns. | Comment | |||
| POM171942 | Astragalus bernardinus | F. W. Peirson | 1930-5-31 | 8924 | San Bernardino | Summit of grade above Warrens Well. Little San Bern Mtns. | Comment | |||
| POM175476 | Artemisia ludoviciana subsp. ludoviciana | F. W. Peirson | 1931-10-10 | 9601 | San Bernardino | Baldwin Lake, San Bernardino Mountains | 2073 | Comment | ||
| POM175534 | Eschscholzia californica subsp. mexicana | F. W. Peirson | 1930-4-16 | 8743 | San Bernardino | 8 miles south of Cima, eastern San Bernardino | Comment | |||
| POM182017 | Fallugia paradoxa | F. W. Peirson | 1927-7-10 | 7356 | San Bernardino | Mexican Well, eastern border of San Bernardino Co. | 1220 | Comment | ||
| POM193462 | Eriogonum evanidum | F. W. Peirson | 1929-10-5 | s.n. | San Bernardino | Along stream south of Peter Pan Woodland Club, Bear Valley | 2134 | Comment | ||
| POM203378 | Descurainia pinnata subsp. halictorum | F. W. Peirson | 1933-6-25 | 10673 | San Bernardino | in a low open valley southeast of Baldwin Lake, about 2 miles east of Fish Hatchery, San Bernardino Mountains | 2133 | Comment | ||
| POM20544 | Lotus davidsonii | F. W. Peirson | 1920-8-22 | 4094 | San Bernardino | Ridge east of Foxesee Creek [Forsee Creek], San Bernardino Mountains | 2896 | Comment | ||
| POM20559 | Mimulus parishii | F. W. Peirson | 1921-5-29 | 199 | San Bernardino | Mojave River. | 884 | Comment | ||
| POM212919 | Lycium andersonii | F. W. Peirson | 1935-4-18 | 11492 | San Bernardino | Copper Basin Creek, Whipple Mountains | Comment | |||
| POM212920 | Salvia mohavensis | F. W. Peirson | 1935-4-18 | 11496 | San Bernardino | Whipple Mountains: In a valley in the north part of the range not far from the road going down into Copper Basin. | Comment | |||
| POM212922 | Phacelia crenulata var. minutiflora | F. W. Peirson | 1935-4-18 | 11493 | San Bernardino | Copper Basin, Whipple Mts., eastern San Bernardino Co. | 457 | Comment | ||
| POM212926 | Plagiobothrys jonesii | F. W. Peirson | 1935-4-18 | 11495 | San Bernardino | Whipple Mountains. Summit of main ridge N of Copper Basin. | 686 | Comment | ||
| POM212933 | Phacelia rotundifolia | F. W. Peirson | 1935-4-18 | 11485 | San Bernardino | Copper basin creek, Whipple Mtns., eastern San Bernardino county | Comment | |||
| POM254416 | Allium campanulatum | F. W. Peirson | 1939-5-21 | s.n. | San Bernardino | Divide at summit of Johnstons Grade, San Bernardino Mountains and County. | 2134 | Comment | ||
| POM254663 | Atriplex rosea | F. W. Peirson | 1923-8-30 | 4009 | San Bernardino | Northeast part of San Gabriel Mts., Lone Pine Canyon, Clyde Ranch. | 1479 | Comment | ||
| POM3458 | Leptodactylon pungens | F. W. Peirson | 1921-6-16 | 2828 | San Bernardino | Bear Valley. | Comment | |||
| POM349507 | Trifolium monanthum subsp. grantianum | F. W. Peirson | 1924-7-5 | 4070 | San Bernardino | Bluff Lake. San Bernardino Mts. | 2287 | Comment | ||
| POM351093 | Aster frondosus | F. W. Peirson | 1924-7-5 | s.n. | San Bernardino | San Bernardino Mts, Baldwin Lake, N shore subalkaline soil | 2037 | Comment | ||
| POM351951 | Chrysothamnus nauseosus subsp. bernardinus | F. W. Peirson | 1924-9-2 | 3176 | San Bernardino | Fish Camp. | 2058 | Comment | ||
| POM360478 | Hieracium horridum | F. W. Peirson | 1924-7-5 | s.n. | San Bernardino | Bluff Lake, San Bernardino Mts | 2286 | Comment | ||
| POM366034 | Panicum urvilleanum | F. W. Peirson | 1922-5-14 | 2965 | San Bernardino | Barstow, Mojave Desert. | Comment | |||
| POM43362 | Ivesia saxosa | F. W. Peirson | 1924-5-15 | 4605 | San Bernardino | Cactus Flat. | 1799 | Comment | ||
| POM47059 | Aster frondosus | F. W. Peirson | 1924-5-15 | 4595 | San Bernardino | North end of Baldwin Lake, San Bernardino Mts. | Comment | |||
| POM47642 | Hesperocnide tenella | F. W. Peirson | 1924-5-14 | 4547 | San Bernardino | 12 miles east of Victorville. | Comment | |||
| POM47644 | Astragalus albens | F. W. Peirson | 1924-5-15 | 4570 | San Bernardino | Cactus Flat, San Bernardino Mts. level open place on hills. | 1768 | Comment | ||
| POM47645 | Astragalus purshii var. lectulus | F. W. Peirson | 1924-5-15 | 4567 | San Bernardino | Summit above Doble, San Bernardino Mountains | 2100 | Comment | ||
| POM47652 | Sphaeralcea ambigua subsp. ambigua | F. W. Peirson | 1924-5-14 | 4612 | San Bernardino | Box S Springs in Cushenberry [Cushenbury] Springs Region, north base of San Bernardino Mountains. | 1082 | Comment | ||
| POM49914 | Carex multicostata | F. W. Peirson | 1924-7-5 | s.n. | San Bernardino | Bluff Lake, San Bernardino Mountains. | 2287 | Comment | ||
| POM71681 | Castilleja montigena | F. W. Peirson | 1924-7-15 | 4966 | San Bernardino | Coon Creek Divide, San Bernardino Mts. | 2439 | Comment | ||
| POM9680 | Gentiana fremontii | F. W. Peirson | 1920-8-25 | s.n. | San Bernardino | South Fork of Santa Ana River | 2439 | Comment | ||
| RSA0005215 | Claytonia lanceolata var. peirsonii | Mabel Peirson | 1920-5-29 | s.n. | San Bernardino | San Antonio Mtns., near Kelly's Cabin, Ontario Ridge. | Comment | |||
| RSA0006714 | Astragalus bicristatus | F. W. Peirson | 1923-5-28 | s.n. | San Bernardino | Baldwin Lake, San Bernardino Mts. | 2057 | Comment | ||
| RSA0008414 | Erigeron parishii | F. W. Peirson | 1939-5-21 | s.n. | San Bernardino | Cushenbury Grade, San Bernardino Mts. | 1372 | Comment | ||
| RSA0016435 | Helianthus nuttallii subsp. nuttallii | F. W. Peirson | 1923-8-30 | 4022 | San Bernardino | Clyde Ranch, Lone Pine Canyon. Eastern San Gabriel Mountains, west San Bernardino County | 1494 | Comment | ||
| RSA0017278 | Eriogonum umbellatum var. canifolium | F. W. Peirson | 1921-7-18 | 4211 | San Bernardino | Eastern San Gabriel Mountains: forks of the Coldwater, tributary of Lytle Creek | 1905 | Comment | ||
| RSA0057744 | Arenaria lanuginosa var. saxosa | F. W. Peirson | 1920-8-25 | 2246 | San Bernardino | South Fork of Santa Ana River, San Bernardino Mts. | 2590 | Comment | ||
| RSA0059520 | Claytonia peirsonii subsp. peirsonii | F. W. Peirson | 1920-5-19 | 2151 | San Bernardino | San Gabriel Mts., Devils Backbone Ridge. | 2134 | Comment | ||
| RSA0063187 | Heuchera parishii | F. W. Peirson | 1922-8-23 | 680 | San Bernardino | Summit of Mount San Gorgonio. | 3476 | Comment | ||
| RSA0063239 | Heuchera parishii | F. W. Peirson | 1923-8-21 | 3988 | San Bernardino | Small side canyon east and south of Forest Home, San Bernardino Mountains. | 1768 | Comment | ||
| RSA0066184 | Heuchera parishii | F. W. Peirson | 1924-7-13 | 4933 | San Bernardino | Big Meadows, Upper Santa Ana River, San Bernardino Mountains. | 2133 | Comment | ||
| RSA0066354 | Heuchera abramsii | F. W. Peirson | 1922-7-21 | 3207 | San Bernardino | North slope of Mt San Antonio, San Gabriel Mountains. | 2957 | Comment | ||
| RSA0081577 | Pyrola minor | F. W. Peirson | 1924-7-14 | 4956 | San Bernardino | Lost Creek, San Bernardino Mountains. | 2438 | Comment | ||
| RSA0117291 | Collinsia parviflora | F. W. Peirson | 1926-5-31 | 6755 | San Bernardino | Bluff Lake. | 2287 | Comment | ||
| RSA0117297 | Collinsia parviflora | F. W. Peirson | 1924-5-16 | 4597 | San Bernardino | 2.5 miles from Bear Lake Dam on south side of Bear Lake | 2043 | Comment | ||
| RSA0123442 | Eriastrum sapphirinum subsp. sapphirinum | F. W. Peirson | 1929-8-23 | 8585 | San Bernardino | Southwest slopes of Baldwin Lake, San Bernardino Mts. | 2073 | Comment | ||
| RSA0126303 | Arabis hirsuta var. glabrata | F. W. Peirson | 1920-8-25 | 8355 | San Bernardino | South Fork of Santa Ana River | 2438 | Comment | ||
| RSA0126581 | Arabis hirsuta var. glabrata | F. W. Peirson | 1922-6-22 | 659 | San Bernardino | South Fork of Santa Ana River | 2348 | Comment | ||
| RSA0129772 | Arabis parishii | F. W. Peirson | 1922-6-23 | 3101 | San Bernardino | Along ridge eastward from summit of Sugarloaf Peak, San Bernardino Mountains. | 2957 | Comment | ||
| RSA100117 | Lonicera interrupta | F. W. Peirson | 1929-7-11 | 8474 | San Bernardino | City Creek road below the bridge; southern slope of San Bernardino Mountains. | 610 | Comment | ||
| RSA11978 | Mirabilis pumila | F. W. Peirson | 1920-8-26 | 2257 | San Bernardino | Santa Ana River, San Bernardino Mountains. | 1372 | Comment | ||
| RSA13544 | Cryptantha cinerea var. abortiva | F. W. Peirson | 1922-6-21 | 3103 | San Bernardino | Big Meadow, upper Santa Ana River, San Bernardino Mountains | 2165 | Comment | ||
| RSA171916 | Astragalus cimae var. cimae | F. W. Peirson | 1930-4-16 | 8738 | San Bernardino | Summit of grade on Cima Road, over New York Mountains | 1828 | Comment | ||
| RSA201891 | Cycladenia humilis var. venusta | F. W. Peirson | 1918-7-8 | 147 | San Bernardino | Baldy , Mt. San Antonio | 2591 | Comment | ||
| RSA20526 | Linanthus pungens subsp. pulchriflorus | F. W. Peirson | 1922-6-23 | 3348 | San Bernardino | Holcomb Creek. | 2591 | Comment | ||
| RSA20545 | Lotus nevadensis var. davidsonii | F. W. Peirson | 1922-7-5 | 4089 | San Bernardino | Big Pines, Swartout valley | 2104 | Comment | ||
| RSA352033 | Chrysothamnus viscidiflorus var. stenophyllus | F. W. Peirson | 1924-9-1 | s.n. | San Bernardino | Cactus Flat. | 1799 | Comment | ||
| RSA35406 | Ceanothus integerrimus var. puberulus | F. W. Peirson | 1929-7-11 | 8469 | San Bernardino | City Creek Road along the slopes of Bear Canyon, San Bernardino Mountains. | 2134 | Comment | ||
| RSA364617 | Carex bolanderi | F. W. Peirson | 1924-7-14 | 4963 | San Bernardino | Lost Creek, San Bernardino Mountains. | Comment | |||
| RSA365416 | Eleocharis radicans | F. W. Peirson | 1922-6-25 | 8350 | San Bernardino | Barton Flats | Comment | |||
| RSA365953 | Schoenus nigricans | F. W. Peirson | 1923-8-30 | 4000 | San Bernardino | Lone Pine Canyon | 1479 | Comment | ||
| RSA366029 | Scirpus microcarpus | F. W. Peirson | 1922-6-20 | S- 097 | San Bernardino | 4 miles SE of San Bernardino. | Comment | |||
| RSA368902 | Luzula comosa | F. W. Peirson | 1922-6-24 | s.n. | San Bernardino | South Fork of the Santa Ana River | 1921 | Comment | ||
| RSA392213 | Gentiana fremontii | F. W. Peirson | 1920-8-25 | s.n. | San Bernardino | South Fork of Santa Ana River | 2439 | Comment | ||
| RSA399949 | Myosurus aristatus | F. W. Peirson | 1926-5-31 | 14990 | San Bernardino | Bluff Lake | 2287 | Comment | ||
| RSA400532 | Castilleja cinerea | F. W. Peirson | 1922-6-23 | 3128 | San Bernardino | At summit and along ridge to east; Sugarloaf Peak. | Comment | |||
| RSA414213 | Festuca brachyphylla | F. W. Peirson | 1922-8-23 | 3266 | San Bernardino | San Bernardino Mts: summit of Mt. San Gorgonio | 3491 | Comment | ||
| RSA414752 | Oxytropis oreophila | F. W. Peirson | 1922-8-28 | s.n. | San Bernardino | Summit of San Gorgonio Peak | Comment | |||
| RSA420563 | Eriogonum umbellatum var. munzii | F. W. Peirson | 1922-7-7 | 3177 | San Bernardino | San Gabriel Mountains: Sheep Creek | 1921 | Comment | ||
| RSA427445 | Solanum umbelliferum | F. W. Peirson | 1924-9-1 | 5154 | San Bernardino | Johnson's Grade, east end of San Bernardino Mountains | 1982 | Comment | ||
| RSA427464 | Solanum umbelliferum | F. W. Peirson | 1929-10-11 | 8598 | San Bernardino | City Creek Rd., 2 mi west of Bear Lake Dam. | 2134 | Comment | ||
| RSA435264 | Lythrum californicum | F. W. Peirson | 1924-8-31 | 3134 | San Bernardino | Box S Springs, southern Mojave Desert | 1082 | Comment | ||
| RSA440031 | Cleomella plocasperma | F. W. Peirson | 1924-9-1 | 5137 | San Bernardino | Cushenberry Grade. San Bernardino Mountains. | 1128 | Comment | ||
| RSA445622 | Eschscholzia glyptosperma | F. W. Peirson | 1922-5-14 | 3003 | San Bernardino | 5 miles north of Barstow. | Comment | |||
| RSA466640 | Cistanthe monosperma | F. W. Peirson | 1924-7-5 | 4910 | San Bernardino | Bluff Lake, San Bernardino Mountains. | 2287 | Comment | ||
| RSA467873 | Pyrola californica | F. W. Peirson | 1924-7-13 | 4991 | San Bernardino | Fish Creek, San Bernardino Mts. | 2317 | Comment | ||
| RSA473031 | Senecio bernardinus | F. W. Peirson | 1924-7-6 | 4924 | San Bernardino | North shore of Bear Lake (Nr its West end) | 2042 | Comment | ||
| RSA473032 | Packera ionophylla | F. W. Peirson | 1924-7-13 | s.n. | San Bernardino | Big Meadows, Upper Santa Ana River, San Bernardino Mountains | 2133 | Comment | ||
| RSA484522 | Puccinellia nuttalliana | F. W. Peirson | 1924-9-1 | 5163 | San Bernardino | Baldwin Lake. | 2043 | Comment | ||
| RSA488522 | Puccinellia nuttalliana | F. W. Peirson | 1924-9-1 | s.n. | San Bernardino | North side of Baldwin Lake, San Bernardino Mountains. | 2043 | Comment | ||
| RSA499251 | Ivesia saxosa | F. W. Peirson | 1924-9-1 | 4605 | San Bernardino | Cactus Flat. | 1799 | Comment | ||
| RSA568517 | Gentiana fremontii | F. W. Peirson | 1920-07 | 3416 | San Bernardino | Upper Santa Ana River | Comment | |||
| RSA568536 | Lotus argyraeus var. argyraeus | F. W. Peirson | 1929-7-11 | 8451 | San Bernardino | Fawnskin, San Bernardino Mountains. Top ridge back of public Auto Camp. | 2073 | Comment | ||
| RSA571787 | Ephedra nevadensis | F. W. Peirson | 1930-4-29 | 8766 | San Bernardino | 1 mile west of the Mohave River on the Hesperia Road. | 854 | Comment | ||
| RSA580832 | Hesperostipa comata subsp. comata | F. W. Peirson | 1933-6-24 | 8957 | San Bernardino | South shore Baldwin Lake. | 2058 | Comment | ||
| RSA588346 | Epilobium canum subsp. latifolium | F. W. Peirson | 1929-9-2 | 5174 | San Bernardino | San Bernardino Mountains, Fish Camp. | 2058 | Comment | ||
| RSA615319 | Eriogonum heermannii | F. W. Peirson | 1924-9-1 | 5147 | San Bernardino | Cushenbury Grade, north slope of San Bernardino Mountains. | 1372 | Comment | ||
| RSA64576 | Eriogonum saxatile | F. W. Peirson | 1920-9-12 | 25 | San Bernardino | San Gabriel Mountains: Mt. San Antonio (Baldy) | 2820 | Comment | ||
| RSA64596 | Eriogonum plumatella | F. W. Peirson | 1951-1 | 1746 | San Bernardino | South of Victorville. | Comment | |||
| RSA64699 | Eriogonum thomasii | F. W. Peirson | 1916-7-9 | s.n. | San Bernardino | Mojave Desert, near Victorville. | Comment | |||
| RSA64721 | Eriogonum wrightii var. subscaposum | F. W. Peirson | 1924-9-1 | 5151 | San Bernardino | Johnson's Grade, east end of San Bernardino Mountains | 1982 | Comment | ||
| RSA64762 | Eriogonum trichopes | F. W. Peirson | 1916-7-9 | 1733 | San Bernardino | East of Victorville. | Comment | |||
| RSA64781 | Oxytheca perfoliata | F. W. Peirson | 1927-5-7 | 7278 | San Bernardino | 1 mile east of Kramer. | 2218 | Comment | ||
| RSA64793 | Chenopodium atrovirens | F. W. Peirson | 1923-8-31 | 5272 | San Bernardino | Blue Ridge, north side of San Gabriel Mts near Los Angeles-San Bernardino Co. line | 2590 | Comment | ||
| RSA64799 | Chenopodium salinum | F. W. Peirson | 1924-7-5 | 4915 | San Bernardino | North shore of Baldwin Lake | 2037 | Comment | ||
| RSA64808 | Chenopodium berlandieri var. zschackei | F. W. Peirson | 1916-7-8 | 1825 | San Bernardino | Box S Spring. | 1082 | Comment | ||
| RSA64883 | Oxytheca parishii var. cienegensis | F. W. Peirson | 1922-8-26 | 4215 | San Bernardino | Cienega Seca Creek | 2210 | Comment | ||
| RSA64892 | Oxytheca caryophylloides | F. W. Peirson | 1926-9-5 | 7080 | San Bernardino | Lake Arrowhead | 1524 | Comment | ||
| RSA64899 | Eriogonum plumatella | F. W. Peirson | 1923-9-1 | 4002 | San Bernardino | Sheep Creek: north slope of San Gabriel Mountains. | 1585 | Comment | ||
| RSA64900 | Eriogonum plumatella | F. W. Peirson | 1924-8-31 | 5104 | San Bernardino | Roadside, 2 miles N of Cajon Pass, S Mojave Desert | 1159 | Comment | ||
| RSA64914 | Chenopodium berlandieri var. sinuatum | F. W. Peirson | 1924-9-1 | 5142 | San Bernardino | Cushenbury Springs, N base of San Bernardino Mountains., Mojave Desert. | 1232 | Comment | ||
| RSA65007 | Eriogonum wrightii var. subscaposum | F. W. Peirson | 1920-8-24 | 2720 | San Bernardino | Big Meadow, upper Santa Ana River | 2134 | Comment | ||
| RSA65015 | Silene menziesii subsp. dorrii | F. W. Peirson | 1920-8-25 | 2820 | San Bernardino | Lower end of meadow, South Fork of Santa Ana River | 2363 | Comment | ||
| RSA65019 | Silene menziesii subsp. dorrii | F. W. Peirson | 1922-6-24 | 4287 | San Bernardino | Santa Ana River | 1936 | Comment | ||
| RSA65020 | Silene menziesii subsp. dorrii | F. W. Peirson | 1924-7-13 | 4939 | San Bernardino | Fish Creek. | 2134 | Comment | ||
| RSA65021 | Silene menziesii subsp. dorrii | F. W. Peirson | 1930-7-4 | 8984 | San Bernardino | Green Creek, north slope of Sugerloaf Peak | 2348 | Comment | ||
| RSA65033 | Silene parishii | F. W. Peirson | 1930-7-4 | 8995 | San Bernardino | Greene Creek, north slope of Sugerloaf. | 2515 | Comment | ||
| RSA65034 | Silene parishii | F. W. Peirson | 1924-7-14 | 4959 | San Bernardino | Lost Creek, San Bernardino Mountains. | 2287 | Comment | ||
| RSA65038 | Silene parishii | F. W. Peirson | 1906-8-17 | 609 | San Bernardino | South Fork of Santa Ana River. | 2439 | Comment | ||
| RSA65039 | Silene parishii | F. W. Peirson | 1924-7-13 | 5320 | San Bernardino | Divide between Fish and Mission Creeks | 2530 | Comment | ||
| RSA65050 | Silene verecunda subsp. platyota | F. W. Peirson | 1941-6-24 | s.n. | San Bernardino | Quarry north of Baldwin Lake | Comment | |||
| RSA65057 | Silene verecunda subsp. platyota | F. W. Peirson | 1930-7-4 | 8992 | San Bernardino | North side of Sugarloaf on Greene [Green] Creek. | 2439 | Comment Read comments Dec 17 2016 |
||
| RSA65061 | Silene verecunda subsp. platyota | F. W. Peirson | 1923-8-31 | 4010 | San Bernardino | Blue Ridge, north side of San Gabriel Mts near Los Angeles-San Bernardino Co. line | 2590 | Comment | ||
| RSA65065 | Silene krantzii | F. W. Peirson | 1923-4-24 | 615 | San Bernardino | Summit od San Gorgonio Peak. | 3476 | Comment | ||
| RSA65083 | Eriogonum gracillimum | F. W. Peirson | 1932-11-13 | 10485 | San Bernardino | Deadman Point, east of Victorville. | 915 | Comment | ||
| RSA65121 | Eriogonum deflexum var. baratum | F. W. Peirson | 1916-7-8 | 1740 | San Bernardino | Box 'S' Springs near north base of San Bernardino Mtns. | 1082 | Comment | ||
| RSA65144 | Eriogonum fasciculatum var. polifolium | F. W. Peirson | 1930-5-31 | 8927 | San Bernardino | Summit of grade above Warrens Well. Little San Bern Mtns. | Comment | |||
| RSA65214 | Eriogonum heermannii var. argense | F. W. Peirson | 1924-9-1 | 5147 | San Bernardino | Cushenbury Grade, north slope of San Bernardino Mountains. | 1372 | Comment | ||
| RSA65218 | Eriogonum heermannii var. heermannii | F. W. Peirson | 1923-9-1 | 4683 | San Bernardino | Sheep Creek, north base of San Gabriel Mountains. | 1555 | Comment | ||
| RSA65224 | Eriogonum maculatum | F. W. Peirson | 1921-5-29 | 1725 | San Bernardino | Almost due east of Hesperia and on Mojave River. | 884 | Comment | ||
| RSA65226 | Eriogonum maculatum | F. W. Peirson | 1926-4-28 | 6690 | San Bernardino | Box S Spring, s. Mojave Desert. | 1082 | Comment | ||
| RSA65261 | Mucronea perfoliata | F. W. Peirson | 1917-5-3 | 1773 | San Bernardino | Mojave Desert. | Comment | |||
| RSA65265 | Chorizanthe spinosa | F. W. Peirson | 1927-5-7 | 7274 | San Bernardino | 10 miles W of Barstow | Comment | |||
| RSA65275 | Chorizanthe xanti | F. W. Peirson | 1921-5-30 | 2419 | San Bernardino | Lone Pine Canyon, e. end of San Gabriel Mts. | 1067 | Comment | ||
| RSA65278 | Chorizanthe xanti var. leucotheca | F. W. Peirson | 1920-5-18 | 1772 | San Bernardino | Lytle Creek, east end of San Gabriel Mts. | 1067 | Comment | ||
| RSA65279 | Chorizanthe watsonii | F. W. Peirson | 1922-6-25 | 3131 | San Bernardino | Foxesee Creek. | 1829 | Comment | ||
| RSA65342 | Atriplex rosea | F. W. Peirson | 1923-8-30 | 4009 | San Bernardino | Northeast part of San Gabriel Mts., Lone Pine Canyon, Clyde Ranch. | 1479 | Comment | ||
| RSA65353 | Atriplex confertifolia | F. W. Peirson | 1924-8-31 | 5124 | San Bernardino | 4 miles west of Box S Ranch. | Comment | |||
| RSA65357 | Atriplex canescens var. laciniata | F. W. Peirson | 1928-9-5 | 8199 | San Bernardino | Near Old Woman Springs, s. Mojave Desert . | 970 | Comment | ||
| RSA65379 | Atriplex lentiformis | F. W. Peirson | 1924-8-31 | s.n. | San Bernardino | Victorville, Mojave Desert. | 793 | Comment | ||
| RSA65395 | Calyptridium parryi | F. W. Peirson | 1922-6-24 | 3124 | San Bernardino | South Fork of the Santa Ana River | 1921 | Comment | ||
| RSA65397 | Atriplex confertifolia | F. W. Peirson | 1928-4-28 | 6688 | San Bernardino | Box S. Spring, s. Mojave Desert. | 1082 | Comment | ||
| RSA65421 | Cistanthe monosperma | F. W. Peirson | 1924-7-5 | 4910 | San Bernardino | Bluff Lake, San Bernardino Mountains. | 2287 | Comment | ||
| RSA65464 | Rumex maritimus | F. W. Peirson | 1929-7-11 | 8459 | San Bernardino | Fawskin, Bear Valley, San Bernardino Mountains. | 2043 | Comment | ||
| RSA65481 | Arenaria macradenia var. macradenia | F. W. Peirson | 1930-7-2 | 8965 | San Bernardino | Ridge south from summit of Johnsons Grade, east end of San Bernardino Mountains | 2104 | Comment | ||
| RSA65482 | Arenaria macradenia var. macradenia | F. W. Peirson | 1930-4-14 | 8698 | San Bernardino | Sandy soil, near Cave Spring, Mojave Desert. | Comment | |||
| RSA65488 | Sagina saginoides | F. W. Peirson, J. Ewan | 1922-7-18 | 45 | San Bernardino | Kelly's Cabin, Ontario Ridge, San Gabriel Mountains, west San Bernardino County. | 2470 | Comment | ||
| RSA65494 | Arenaria lanuginosa subsp. saxosa | F. W. Peirson | 1923-8-22 | 3975 | San Bernardino | Vivian Creek, San Bernardino Mountains | 2195 | Comment | ||
| RSA65495 | Arenaria lanuginosa subsp. saxosa | F. W. Peirson | 1924-7-13 | 4937 | San Bernardino | Fish Creek, San Bernardino Mountains. | 2057 | Comment | ||
| RSA65524 | Sagina saginoides | F. W. Peirson | 1922-6-21 | 5319 | San Bernardino | Cienega Seca Creek. | 2134 | Comment | ||
| RSA65525 | Sagina saginoides | F. W. Peirson | 1920-8-25 | 2819 | San Bernardino | South Fork of Santa Ana River | 2438 | Comment | ||
| RSA65532 | Sagina saginoides | F. W. Peirson | 630 | San Bernardino | San Bernardino Mountains. | Comment | ||||
| RSA65549 | Arenaria ursina | F. W. Peirson | 1924-5-15 | 4578 | San Bernardino | At foot of hills, Baldwin Lake | 2042 | Comment | ||
| RSA65592 | Minuartia nuttallii subsp. gracilis | F. W. Peirson | 1923-8-24 | 4285 | San Bernardino | Summit of Mt. San Gorgonio, San Bernardino Mountains. | 3476 | Comment | ||
| RSA65599 | Minuartia nuttallii subsp. gracilis | F. W. Peirson | 1909-8-9 | 623 | San Bernardino | Dry lake, San Bernardino Mountains. | 2744 | Comment | ||
| RSA65606 | Stellaria calycantha | F. W. Peirson | 1923-8-23 | 4158 | San Bernardino | High Creek, San Bernardino Mountains. | 2774 | Comment | ||
| RSA65622 | Opuntia ramosissima | F. W. Peirson | 1924-9-1 | 5222 | San Bernardino | Cushenberry Springs. Mojave Desert. | 1220 | Comment | ||
| RSA65635 | Achyronychia cooperi | F. W. Peirson | 1928-4-26 | 7924 | San Bernardino | Twentynine Palms, s. edge of Mojave Desert. | Comment | |||
| RSA65641 | Montia linearis | F. W. Peirson | 1926-5-30 | s.n. | San Bernardino | South side of Bear Lake, about 2 miles east of dam. | 2043 | Comment | ||
| RSA65661 | Claytonia parviflora subsp. viridis | F. W. Peirson | 1920-5-19 | 2148 | San Bernardino | Coldwater Canyon, fork of Lytle Creek, San Gabriel Mountains | 1677 | Comment | ||
| RSA65667 | Montia chamissoi | F. W. Peirson | 1922-6-22 | 3137 | San Bernardino | South Fork of Santa Ana River | 2377 | Comment | ||
| RSA65677 | Lewisia nevadensis | F. W. Peirson | 1924-5-16 | s.n. | San Bernardino | 2.5 miles from Bear Lake Dam on south side of Bear Lake | 2043 | Comment | ||
| RSA65684 | Lewisia brachycalyx | F. W. Peirson | 1924-5-16 | 4617 | San Bernardino | 2.5 miles from Bear Lake Dam on south side of Bear Lake | 2043 | Comment | ||
| RSA65687 | Lewisia nevadensis | F. W. Peirson | 1926-5-31 | 6754 | San Bernardino | Bluff Lake | 2287 | Comment | ||
| RSA65722 | Claytonia perfoliata subsp. intermontana | F. W. Peirson | 1922-5-13 | 3008 | San Bernardino | North slope of Pilot Knob, northwestern Mojave Desert. | 1296 | Comment | ||
| RSA65723 | Claytonia rubra subsp. rubra | F. W. Peirson | 1951-1 | s.n. | San Bernardino | Bear Valley. | Comment | |||
| RSA65738 | Claytonia perfoliata subsp. intermontana | F. W. Peirson | 1916-7-6 | 601 | San Bernardino | Big Bear Lake, San Bernardino Mts. | 2042 | Comment | ||
| RSA65747 | Stellaria longipes | F. W. Peirson | 1922-6-22 | 3115 | San Bernardino | South Fork of Santa Ana River | 2377 | Comment | ||
| RSA65748 | Stellaria longipes | F. W. Peirson | 1922-6-24 | 6350 | San Bernardino | Santa Ana River | 1936 | Comment | ||
| RSA65758 | Stellaria media | F. W. Peirson | 1922-6-24 | 4291 | San Bernardino | Santa Ana River | 1936 | Comment | ||
| RSA65770 | Opuntia basilaris | F. W. Peirson | 1924-5-14 | 4618 | San Bernardino | Box S Springs in Cushenberry [Cushenbury] Springs Region, north base of San Bernardino Mountains. | 1082 | Comment | ||
| RSA65771 | Echinocereus engelmannii var. engelmannii | F. W. Peirson | 1922-6-23 | 3146 | San Bernardino | Creek leading up to a divide over Holocomb Creek, San Bernardino Mountains | 2439 | Comment | ||
| RSA65784 | Cleomella plocasperma | F. W. Peirson | 1924-9-1 | 5137 | San Bernardino | Open land above Box S Spring, grade near Cushenberry Spring. north base of San Bernardino Mountains. | 1128 | Comment | ||
| RSA65785 | Cleomella plocasperma | F. W. Peirson | 1916-7-8 | 1920 | San Bernardino | Open land above Box S Spring, grade near Cushenberry Spring. north base of San Bernardino Mountains. | 1220 | Comment | ||
| RSA65786 | Cleomella obtusifolia | F. W. Peirson | 1928-4-26 | 7923 | San Bernardino | Twentynine Palms, s. edge of Mojave Desert. | Comment | |||
| RSA65787 | Cleomella obtusifolia | F. W. Peirson | 1922-5-14 | 3004 | San Bernardino | 8 miles north of Barstow. | Comment | |||
| RSA65811 | Descurainia incana subsp. incisa | F. W. Peirson | 1942-5-10 | 13433 | San Bernardino | Summit of Johnson Grade above Baldwin Lake, San Bernardino Mts. | Comment | |||
| RSA65818 | Descurainia pinnata subsp. menziesii | F. W. Peirson | 1933-6-25 | 10673 | San Bernardino | Low open valley east of Fish Hatchery, east end of Bear Valley | 2134 | Comment | ||
| RSA65835 | Descurainia incana subsp. incisa | F. W. Peirson | 1922-8-23 | 3277 | San Bernardino | Dry Lake, San Bernardino Mountains. | 2774 | Comment | ||
| RSA65845 | Eriogonum microtheca var. corymbosoides | F. W. Peirson | 1924-9-1 | 5150 | San Bernardino | Johnson's Grade | 1921 | Comment | ||
| RSA65851 | Eriogonum microtheca var. johnstonii | F. W. Peirson | 1922-7-19 | 3199 | San Bernardino | Cucamonga Peak, San Gabriel Mountains | 2591 | Comment | ||
| RSA65874 | Polygonum kelloggii | F. W. Peirson | 1906-8-15 | 1799 | San Bernardino | Bluff Lake, San Bernardino Mountains. | 2287 | Comment | ||
| RSA65875 | Polygonum kelloggii | F. W. Peirson | 1924-7-5 | s.n. | San Bernardino | Bluff Lake, San Bernardino Mountains. | 2287 | Comment | ||
| RSA65881 | Monolepis spathulata | F. W. Peirson | 1922-8-26 | 3287 | San Bernardino | Cienega Seca Creek | 2256 | Comment | ||
| RSA65883 | Monolepis spathulata | F. W. Peirson | 1922-6-21 | 3148 | San Bernardino | East of Big Meadows, upper Santa Ana River, San Bernardino Mountains | 2165 | Comment | ||
| RSA65890 | Centrostegia thurberi var. thurberi | F. W. Peirson | 1917-5-13 | 1771 | San Bernardino | West of Victorville, on Palmdale road; Mojave Desert. | Comment | |||
| RSA65896 | Centrostegia thurberi var. thurberi | F. W. Peirson | 1921-5-29 | 5344 | San Bernardino | Mojave River. | 884 | Comment | ||
| RSA65911 | Eriogonum nidularium | F. W. Peirson | 1927-5-7 | 7277 | San Bernardino | 1 mile east of Kramer. | Comment | |||
| RSA65914 | Polygonum bistortoides | F. W. Peirson | 1924-7-5 | 4892 | San Bernardino | Bluff Lake, San Bernardino Mountains. | 2287 | Comment | ||
| RSA65915 | Eriogonum kennedyi var. alpigenum | F. W. Peirson | 1906-8-19 | 1753 | San Bernardino | Summit of San Gorgonio Peak | 3491 | Comment | ||
| RSA65925 | Eriogonum inflatum var. inflatum | F. W. Peirson | 1924-5-14 | 4584 | San Bernardino | Box S Springs, near north base of San Bernardino Mountains, southern Mojave Desert | 1082 | Comment | ||
| RSA65929 | Eriogonum kennedyi var. kennedyi | F. W. Peirson | 1930-7-2 | 8966 | San Bernardino | Ridge at summit of Johnson's Grade, east of Baldwin Lake. | 2104 | Comment | ||
| RSA65933 | Polygonum bistortoides | F. W. Peirson | 1922-8-25 | 3275 | San Bernardino | South Fork of Santa Ana River, | 2439 | Comment | ||
| RSA65979 | Eriogonum evanidum | F. W. Peirson | 1929-8-23 | 8587 | San Bernardino | Southwest slopes of Baldwin Lake, San Bernardino Mts. | 2073 | Comment | ||
| RSA65981 | Polygonum amphibium var. stipulaceum | F. W. Peirson | 1906-8-18 | 1789 | San Bernardino | Dry Lake. | 2774 | Comment | ||
| RSA65982 | Eriogonum inflatum var. inflatum | F. W. Peirson | 1935-4-18 | 11479 | San Bernardino | Copper Basin Creek, Whipple Mountains | Comment | |||
| RSA65987 | Eriogonum umbellatum var. minus | F. W. Peirson | 1922-7-19 | 4210 | San Bernardino | Cucamonga Peak, San Gabriel Mountains | 2591 | Comment | ||
| RSA65989 | Eriogonum umbellatum var. subaridum | F. W. Peirson | 1922-7-7 | 3177 | San Bernardino | Sheep Creek, San Gabriel Mountains | 1616 | Comment | ||
| RSA65990 | Eriogonum umbellatum subsp. munzii | F. W. Peirson | 1920-8-22 | 2247 | San Bernardino | East of Foxesee Creek [Forsee Creek], San Bernardino Mountains. | 2134 | Comment | ||
| RSA66000 | Eriogonum mohavense | F. W. Peirson | 1921-5-29 | 4205 | San Bernardino | Mojave River. | 884 | Comment | ||
| RSA66007 | Eriogonum parishii | F. W. Peirson | 1920-8-24 | 2252 | San Bernardino | Santa Ana River, San Bernardino Mts. | 1982 | Comment | ||
| RSA66034 | Eriogonum plumatella | F. W. Peirson | 1922-5-13 | 2963 | San Bernardino | North slope of Pilot Know. | 1524 | Comment Read comments Oct 23 2014 |
||
| RSA66038 | Eriogonum baileyi var. baileyi | F. W. Peirson | 1924-8-31 | 5100 | San Bernardino | 1 mile N of cajon Pass. | Comment | |||
| RSA66057 | Rorippa sinuata | F. W. Peirson | 1922-6-22 | 4185 | San Bernardino | South Fork of Santa Ana River | 2348 | Comment | ||
| RSA66059 | Nasturtium officinale | F. W. Peirson | 1919-4-16 | 372 | San Bernardino | Cajon Pass, west end of San Bernardino Mts. | 686 | Comment | ||
| RSA66071 | Barbarea orthoceras | F. W. Peirson | 1924-7-5 | 4901 | San Bernardino | Bluff Lake, San Bernardino Mts. | 2286 | Comment | ||
| RSA66072 | Barbarea orthoceras | F. W. Peirson | 1922-6-24 | 3144 | San Bernardino | South Fork of the Santa Ana River | 1921 | Comment | ||
| RSA66092 | Tropidocarpum gracile | F. W. Peirson | 1922-5-13 | 2964 | San Bernardino | Granite Wells, Mojave Desert. | Comment | |||
| RSA66118 | Cusickiella douglasii | F. W. Peirson | 1930-4-28 | 8755 | San Bernardino | Sugarloaf Road south of Baldwin Lake | 2133 | Comment | ||
| RSA66119 | Cusickiella douglasii | F. W. Peirson | 1924-5-15 | 4589 | San Bernardino | Baldwin Lake. | 2043 | Comment | ||
| RSA66154 | Erysimum capitatum var. capitatum | F. W. Peirson | 1932-3-25 | 9837 | San Bernardino | 8 miles from Barstow on road to Victorville | 701 | Comment | ||
| RSA66163 | Erysimum capitatum var. capitatum | F. W. Peirson | 1924-7-15 | 4967 | San Bernardino | Coon Creek Divide, San Bernardino Mts. | 2438 | Comment | ||
| RSA66168 | Erysimum capitatum var. capitatum | F. W. Peirson | 1916-7-6 | 1903 | San Bernardino | Bear Lake. San Bernardino Mts. | Comment | |||
| RSA66178 | Draba corrugata | F. W. Peirson | 1920-8-22 | 2325 | San Bernardino | Foxesse Creek, San Bernardino Mts. | 2668 | Comment | ||
| RSA66181 | Arabis holboellii var. retrofracta | F. W. Peirson | 1932-5-28 | 9966 | San Bernardino | South shore of Baldwin Lake, San Bernardino Mountains | 3038 | Comment | ||
| RSA66183 | Eriogonum davidsonii | F. W. Peirson | 1923-8-31 | 4005 | San Bernardino | Summit of Blue Ridge, north slope of San Gabriel Mountains; about 4 mi. E of Big Pines Camp. | 2591 | Comment | ||
| RSA66184 | Eriogonum molestum | F. W. Peirson | 1741 | San Bernardino | San Bernardino Mountains. | Comment | ||||
| RSA66186 | Eriogonum cithariforme | F. W. Peirson | 1924-8-31 | 5101 | San Bernardino | 1 mile N of cajon Pass. | Comment | |||
| RSA66195 | Arabis pulchra var. gracilis | F. W. Peirson | 1930-4-16 | 8733 | San Bernardino | Cima Road, 10 miles south of the Las Vegasto Barstow Road | Comment | |||
| RSA66196 | Arabis pulchra var. gracilis | F. W. Peirson | 1922-5-13 | 2966 | San Bernardino | Summit of Pilot Knob, Mohave Desert. | 1677 | Comment | ||
| RSA66198 | Arabis pulchra | F. W. Peirson | 1924-5-15 | 4568 | San Bernardino | Cactus Flat | 1829 | Comment | ||
| RSA66235 | Platystemon californicus | F. W. Peirson | 1917-5-13 | 1884 | San Bernardino | West of Victorville. | Comment | |||
| RSA66250 | Arabis hirsuta var. glabrata | F. W. Peirson | 1922-8-27 | 6350 | San Bernardino | Santa Ana River, San Bernardino Mts | 1936 | Comment | ||
| RSA66292 | Dicentra chrysantha | F. W. Peirson | 1929-10-11 | 8596 | San Bernardino | City Creek Rd., 2 mi west of Bear Lake Dam. | 2134 | Comment | ||
| RSA66293 | Canbya candida | F. W. Peirson | 1921-5-29 | 4319 | San Bernardino | north slope of Cajon Pass | 1098 | Comment | ||
| RSA66310 | Argemone munita subsp. munita | F. W. Peirson | 1935-4-18 | 11478 | San Bernardino | Copper basin creek, Whipple Mtns., eastern San Bernardino county | Comment | |||
| RSA66320 | Polygonum lapathifolium | F. W. Peirson | 1920-6-22 | 1791 | San Bernardino | 2 miles south of Chino | Comment | |||
| RSA66339 | Eriogonum davidsonii | F. W. Peirson | 1930-7-5 | 9003 | San Bernardino | Quarry northwest of Baldwin Lake, San Bernardino Mountains. | 2073 | Comment | ||
| RSA66343 | Eriogonum brachyanthum | F. W. Peirson | 1922-7-7 | 4743 | San Bernardino | San Gabriel Mountains: Sheep Creek. | 1448 | Comment | ||
| RSA66489 | Eschscholzia glyptosperma | F. W. Peirson | 1932-3-24 | 9821 | San Bernardino | Baker, along SW base of rock hill | 280 | Comment | ||
| RSA66490 | Eschscholzia glyptosperma | F. W. Peirson | 1922-5-14 | 3003 | San Bernardino | 5 miles north of Barstow. | Comment | |||
| RSA66491 | Eschscholzia glyptosperma | F. W. Peirson | 1928-4-1 | 7771 | San Bernardino | canyon floor about 4 mi. below Bradbury Well, on road to Old Confidence Mill, Death Valley Region. | Comment Read comments Dec 12 2016 |
|||
| RSA66507 | Arabis parishii | F. W. Peirson | 1924-5-15 | 4571 | San Bernardino | Summit above Doble, San Bernardino Mountains | 2100 | Comment | ||
| RSA66510 | Arabis platysperma | F. W. Peirson | 1906-8-15 | 656 | San Bernardino | Lookout Mt., Bluff Lake, San Bernardino Mountains. | Comment | |||
| RSA66516 | Arabis platysperma | F. W. Peirson | 1924-7-5 | 4897 | San Bernardino | Bluff Lake, San Bernardino Mountains. | 2287 | Comment | ||
| RSA66522 | Arabis holboellii var. pinetorum | F. W. Peirson | 1922-6-22 | 3135 | San Bernardino | South Fork of Santa Ana River | 2348 | Comment | ||
| RSA66542 | Caulanthus inflatus | F. W. Peirson | 1922-5-12 | 3014 | San Bernardino | 22 miles north of Barstow, | Comment | |||
| RSA66553 | Draba corrugata | F. W. Peirson | 1916-7-6 | 648 | San Bernardino | Bear Lake region [Big Bear Lake], San Bernardino Mountains. | Comment | |||
| RSA66554 | Draba corrugata | F. W. Peirson | 1951-1 | 57 | San Bernardino | San Bernardino Mountains. | Comment | |||
| RSA66556 | Draba corrugata | F. W. Peirson | 1922-6-23 | 4430 | San Bernardino | Along ridge, Sugarloaf Peak. | 2927 | Comment | ||
| RSA66558 | Draba corrugata | F. W. Peirson | 1930-7-4 | 8997 | San Bernardino | Greene Creek, north slope of Sugerloaf. | 2515 | Comment | ||
| RSA66587 | Lesquerella tenella | F. W. Peirson | 1932-3-23 | 9812 | San Bernardino | 35 miles S of Needles on road to Blythe. | Comment | |||
| RSA66599 | Rorippa curvisiliqua | F. W. Peirson | 1924-7-5 | 2590 | San Bernardino | Bluff Lake, San Bernardino Mountains | 2317 | Comment | ||
| RSA66684 | Lepidium fremontii | F. W. Peirson | 1916-7-9 | 678 | San Bernardino | Mojave Desert, near Victorville. | Comment | |||
| RSA66685 | Wislizenia refracta subsp. refracta | F. W. Peirson | 1928-4-26 | 7922 | San Bernardino | Twentynine Palms, s. edge of Mojave Desert | Comment | |||
| RSA66700 | Arabis parishii | F. W. Peirson | 1930-4-28 | 8752 | San Bernardino | Sugarloaf Road south of Baldwin Lake | 2133 | Comment | ||
| RSA66707 | Caulanthus amplexicaulis var. amplexicaulis | F. W. Peirson | 1919-6-4 | 64 | San Bernardino | Icehouse Canyon | 1600 | Comment | ||
| RSA66714 | Streptanthus bernardinus | F. W. Peirson | 1926-9-5 | 7075 | San Bernardino | Lake Arrowhead | 1524 | Comment | ||
| RSA66715 | Caulanthus major | F. W. Peirson | 1929-10-5 | 8594 | San Bernardino | Along stream south of Peter Pan Woodland Club, Bear Valley | 2134 | Comment | ||
| RSA66716 | Streptanthus bernardinus | F. W. Peirson | 1929-7-11 | 8453 | San Bernardino | Fawnskin, Bear Valley. | 2072 | Comment | ||
| RSA66745 | Eschscholzia minutiflora | F. W. Peirson | 1930-4-16 | 8739 | San Bernardino | 6 miles south of summit on Cima road, eastern San Bernardino County. | Comment | |||
| RSA66746 | Eschscholzia minutiflora | F. W. Peirson | 1922-5-13 | 4176 | San Bernardino | 2 miles north of Granite Wells, Mojave Desert. | Comment | |||
| RSA66783 | Thysanocarpus laciniatus | F. W. Peirson | 1921-5-29 | 665 | San Bernardino | north slope of Cajon Pass | 1097 | Comment | ||
| RSA66802 | Thelypodium stenopetalum | F. W. Peirson | 1926-5-30 | 6741 | San Bernardino | North side of Baldwin Lake. San Bernardino Mountains. | 2043 | Comment | ||
| RSA66804 | Streptanthella longirostris | F. W. Peirson | 1917-5-13 | 1914 | San Bernardino | West of Victorville, on Palmdale road; Mojave Desert. | Comment | |||
| RSA66805 | Streptanthella longirostris | F. W. Peirson | 1930-4-16 | 8730 | San Bernardino | Cima road, 8 miles S of the Las Vegas to Baker road | Comment | |||
| RSA66810 | Streptanthella longirostris | F. W. Peirson | 1924-3-25 | 9838 | San Bernardino | 18 miles from Barstow on Victorville road | 732 | Comment | ||
| RSA66818 | Caulanthus cooperi | F. W. Peirson | 1917-5-14 | 672 | San Bernardino | Cajon Pass. | Comment Read comments Jan 2 2017 |
|||
| RSA66834 | Thelypodium integrifolium subsp. affine | F. W. Peirson | 1924-8-31 | 5132 | San Bernardino | Box S Spring, N base of San Bernardino Mts | 1082 | Comment | ||
| RSA66836 | Streptanthus bernardinus | F. W. Peirson | 1916-7-6 | 673 | San Bernardino | Bear Lake. San Bernardino Mts. | Comment | |||
| RSA67107 | Myosurus minimus subsp. montanus | F. W. Peirson | 1922-6-22 | 3110 | San Bernardino | South Fork of Santa Ana River. | 2378 | Comment | ||
| RSA67112 | Myosurus aristatus | F. W. Peirson | 1924-5-15 | 4557 | San Bernardino | Summit above Doble, San Bernardino Mountains | 2100 | Comment | ||
| RSA67140 | Galium parishii | F. W. Peirson | 1920-8-24 | 2654 | San Bernardino | Big Meadow. | 2134 | Comment | ||
| RSA67141 | Galium parishii | F. W. Peirson | 1930-7-7 | 9016 | San Bernardino | Arrastre Flat | 2287 | Comment | ||
| RSA67144 | Galium parishii | F. W. Peirson | 1924-7-5 | 4889 | San Bernardino | Bluff Lake Meadow. | 2317 | Comment | ||
| RSA67155 | Galium trifidum var. pusillum | F. W. Peirson | 1924-7-5 | 4893 | San Bernardino | Bluff Lake, San Bernardino Mountains. | 2287 | Comment | ||
| RSA67358 | Lepidium flavum | F. W. Peirson | 1917-5-13 | 676 | San Bernardino | Mojave Desert. | Comment | |||
| RSA67362 | Lepidium fremontii | F. W. Peirson | 1930-4-29 | 8760 | San Bernardino | A short distance below Cusshenberry Springs, N base of San Bernardino Mt. | 1220 | Comment | ||
| RSA68616 | Calochortus invenustus | Frank W. Peirson | 1922-7-24 | s.n. | San Bernardino | South Fork of the Santa Ana River, San Bernardino Mountains. | 2073 | Comment | ||
| RSA68618 | Calochortus invenustus | Frank W. Peirson | 1922-7-18 | s.n. | San Bernardino | Kelly's Cabin, Ontario Ridge, San Gabriel Mountains, west San Bernardino County. | 2470 | Comment | ||
| RSA68636 | Calochortus plummerae | Frank W. Peirson | 1922-7-4 | 4098 | San Bernardino | Lone Pine canyon, San Gabriel Mountains. | 1143 | Comment | ||
| RSA68647 | Calochortus invenustus | Frank W. Peirson | 1916-7-6 | 1669 | San Bernardino | Bear Lake region [Big Bear Lake], San Bernardino Mountains. | Comment | |||
| RSA68678 | Zigadenus brevibracteatus | Frank W. Peirson | 1917-5-13 | 1688 | San Bernardino | West of Victorville, on Palmdale road; Mojave Desert. | Comment | |||
| RSA68680 | Zigadenus brevibracteatus | Frank W. Peirson | 1922-5-12 | 3012 | San Bernardino | 3 miles south of Copper City, Mojave Desert. | Comment | |||
| RSA68708 | Lilium parryi | Frank W. Peirson | 1951-1 | 1677 | San Bernardino | San Bernardino Mountains. | Comment | |||
| RSA687779 | Delphinium parishii | F. W. Peirson | 1933-6-24 | 10675 | San Bernardino | below the road and south of the turn up to the Johnston Summit, east of Baldwin Lake. San Bernardino Mts. | 2058 | Comment | ||
| RSA68789 | Delphinium parishii | F. W. Peirson | 1926-5-29 | 6739 | San Bernardino | Cactus Flat. | Comment | |||
| RSA68962 | Plantago purshii var. oblonga | F. W. Peirson | 1930-7-2 | 8967 | San Bernardino | Ridge south from summit of Johnsons Grade, east end of San Bernardino Mountains | 2104 | Comment | ||
| RSA68965 | Plantago purshii var. oblonga | F. W. Peirson | 1916-7-8 | 1180 | San Bernardino | Near western end of Baldwin Lake. San Bernardino Mts | Comment | |||
| RSA68983 | Plantago ovata var. fastigiata | F. W. Peirson | 1922-5-14 | 4497 | San Bernardino | 8 miles north of Barstow, on Granite Wells road; Mojave desert | Comment | |||
| RSA68990 | Plantago lanceolata | F. W. Peirson | 1920-5-18 | 2150 | San Bernardino | Lytle Creek, east end of San Gabriel Mts. | 1067 | Comment | ||
| RSA68998 | Samolus parviflorus | F. W. Peirson | 1920-6-22 | s.n. | San Bernardino | Chino Creek | 152 | Comment | ||
| RSA68999 | Samolus parviflorus | F. W. Peirson | 1923-8-26 | s.n. | San Bernardino | above road to Seven Oaks, in Mill Creek. | 1220 | Comment | ||
| RSA69029 | Dodecatheon alpinum subsp. majus | F. W. Peirson | 1922-8-22 | s.n. | San Bernardino | Meadows of South Fork of Santa Ana River, San Bernardino Mountains. | 2561 | Comment | ||
| RSA69037 | Dodecatheon alpinum subsp. majus | F. W. Peirson | 1906-8-15 | s.n. | San Bernardino | Bluff Lake, San Bernardino Mountains. | 2256 | Comment | ||
| RSA69043 | Dodecatheon hendersonii | F. W. Peirson | 1924-5-16 | 4599 | San Bernardino | South side of Bear Lake, ca. 2.5 miles from dam. | 2043 | Comment | ||
| RSA69242 | Phyllodoce breweri | F. W. Peirson | 1906-8-19 | 847 | San Bernardino | Summit of San Gorgonio Peak | 3491 | Comment | ||
| RSA69272 | Chimaphila umbellata subsp. occidentalis | F. W. Peirson | 1920-8-25 | 829 | San Bernardino | San Bernardino Mts. Dollar Lake region. | 2668 | Comment | ||
| RSA69306 | Pyrola minor | F. W. Peirson | 1920-8-25 | 2587 | San Bernardino | San Bernardino Mts. Dollar Lake region. | 2668 | Comment | ||
| RSA69317 | Pyrola asarifolia subsp. asarifolia | F. W. Peirson | 1924-7-13 | 4941 | San Bernardino | Along bank of Fish Creek, upper Santa Ana River | 2317 | Comment | ||
| RSA69391 | Thalictrum sparsiflorum | F. W. Peirson | 1906-8-15 | 645 | San Bernardino | Bluff Lake, San Bernardino Mountains. | 2256 | Comment | ||
| RSA69442 | Frasera neglecta | F. W. Peirson | 1930-7-7 | 9015 | San Bernardino | East end of Arrastre Flat | 2256 | Comment | ||
| RSA69451 | Juncus effusus subsp. austrocalifornicus | F. W. Peirson | 1922-6-20 | 3096 | San Bernardino | 4 miles east of San Bernardino. | Comment | |||
| RSA69465 | Mirabilis laevis var. villosa | F. W. Peirson | 1924-5-15 | 4611 | San Bernardino | Cushenbury Grade, N base of San Bernardino Mts | 1311 | Comment | ||
| RSA69477 | Luzula comosa | F. W. Peirson | 1924-9-2 | 5188 | San Bernardino | Near Fish Camp, San Bernardino Mountains. | 2058 | Comment | ||
| RSA69478 | Luzula comosa | F. W. Peirson | 1924-7-5 | 5428 | San Bernardino | Bluff Lake, San Bernardino Mountains. | 2287 | Comment | ||
| RSA69480 | Luzula comosa | F. W. Peirson | 1920-8-25 | 2270 | San Bernardino | South Fork of Santa Ana River, San Bernardino Mountains. | 2439 | Comment | ||
| RSA69491 | Mirabilis laevis var. crassifolia | F. W. Peirson | 1923-3-3 | 5220 | San Bernardino | Rough land east of Mentone. | Comment | |||
| RSA69502 | Luzula comosa | F. W. Peirson | 1923-8-23 | 4263 | San Bernardino | High Creek, San Bernardino Mountains. | 2774 | Comment | ||
| RSA69514 | Veratrum californicum | Frank W. Peirson | 1906-8-15 | 1686 | San Bernardino | Bluff Lake, San Bernardino Mountains. | 2287 | Comment | ||
| RSA69531 | Maianthemum stellatum | Frank W. Peirson | 1922-7-22 | 4101 | San Bernardino | South Fork of Santa Ana River, San Bernardino Mountains | 2378 | Comment | ||
| RSA69533 | Maianthemum stellatum | Frank W. Peirson | 1920-9-14 | 1682 | San Bernardino | Coldwater Cienega, Lytle Creek | 2134 | Comment | ||
| RSA69543 | Mentzelia reflexa | F. W. Peirson | 1932-3-24 | 9824 | San Bernardino | Baker, along SW base of rock hill | 280 | Comment | ||
| RSA69544 | Mentzelia reflexa | F. W. Peirson | 1928-4-1 | 7765 | San Bernardino | 33 miles north of Baker. | Comment | |||
| RSA69554 | Mentzelia tridentata | F. W. Peirson | 1922-5-12 | 4111 | San Bernardino | 10 miles N of Barstow on Granite Wells Road | Comment | |||
| RSA69562 | Mentzelia jonesii | F. W. Peirson | 1917-5-13 | 754 | San Bernardino | West of Victorville. | Comment | |||
| RSA69580 | Mentzelia laevicaulis | F. W. Peirson | 1920-9-15 | 121 | San Bernardino | Lytle Creek, east end of San Gabriel Mts. | 1982 | Comment | ||
| RSA69599 | Sagittaria cuneata | F. W. Peirson | 1924-7-5 | 4894 | San Bernardino | Bluff Lake, San Bernardino Mts | 2286 | Comment | ||
| RSA69633 | Juncus mexicanus | F. W. Peirson | 1924-7-5 | 4916 | San Bernardino | North shore of Baldwin Lake | 2037 | Comment | ||
| RSA69646 | Malaxis brachypoda | Frank W. Peirson | 1922-8-25 | s.n. | San Bernardino | Meadows of South Fork, Santa Ana River | Comment | |||
| RSA69647 | Malaxis brachypoda | Frank W. Peirson | 1920-8-25 | 2271 | San Bernardino | South Fork of Santa Ana River | 2438 | Comment | ||
| RSA69659 | Juncus macrophyllus | F. W. Peirson | 1922-8-27 | 3271 | San Bernardino | Barton Flats, San Bernardino Mountains. | 1982 | Comment | ||
| RSA69666 | Juncus macrophyllus | F. W. Peirson | 1923-8-22 | 4261 | San Bernardino | Vivian Creek, San Bernardino Mountains | 2195 | Comment | ||
| RSA69672 | Juncus bufonius var. occidentalis | F. W. Peirson | 1920-5-20 | 1643 | San Bernardino | Lytle Creek, San Gabriel Mts. | 610 | Comment | ||
| RSA69684 | Mentzelia desertorum | F. W. Peirson | 1928-4-1 | 7764 | San Bernardino | 33 miles north of Baker. | Comment | |||
| RSA69686 | Mentzelia obscura | F. W. Peirson | 1932-3-24 | 9819 | San Bernardino | Baker, along SW base of rock hill | 280 | Comment | ||
| RSA69688 | Mentzelia veatchiana | F. W. Peirson | 1922-5-13 | 2983 | San Bernardino | 2 miles north of Granite Wells, Mojave Desert. | Comment | |||
| RSA69707 | Mentzelia obscura | F. W. Peirson | 1932-3-25 | 9836 | San Bernardino | North of Yermo. | 610 | Comment | ||
| RSA69726 | Lemna minuta | F. W. Peirson | 1924-8-31 | 5111 | San Bernardino | South of Victorville. | 793 | Comment | ||
| RSA69729 | Spirodela polyrhiza | F. W. Peirson | 1924-8-31 | 5110 | San Bernardino | South of Victorville. | 793 | Comment | ||
| RSA69782 | Gentiana simplex | F. W. Peirson | 1920-8-25 | 2256 | San Bernardino | South Fork of Santa Ana River | 2439 | Comment | ||
| RSA69794 | Gentiana amarella | F. W. Peirson | 1922-8-22 | 3274 | San Bernardino | Meadows of South Fork of Santa Ana River, San Bernardino Mountains. | 2561 | Comment | ||
| RSA69797 | Gentiana fremontii | F. W. Peirson | 1922-6-22 | 3136 | San Bernardino | South Fork of Santa Ana River. | 2378 | Comment | ||
| RSA69798 | Gentiana fremontii | F. W. Peirson | 1909-8-10 | 869 | San Bernardino | South Fork Meadows of Santa Ana River | 2439 | Comment | ||
| RSA69846 | Platanthera sparsiflora | Frank W. Peirson | 1918-7-8 | 12 | San Bernardino | San Antonio Canyon, San Gabriel Mountains, W San Bernardino [County] | 1829 | Comment | ||
| RSA69860 | Juncus torreyi | F. W. Peirson | 1923-8-30 | 4011 | San Bernardino | Clyde Ranch, Lone Pine Canyon. Eastern San Gabriel Mountains, west San Bernardino County | 1494 | Comment | ||
| RSA69862 | Juncus torreyi | F. W. Peirson | 1924-8-2 | 5117 | San Bernardino | South of Victorville. | 793 | Comment | ||
| RSA69874 | Amsonia tomentosa var. tomentosa | F. W. Peirson | 1916-7-8 | 883 | San Bernardino | Box S Springs near north base of San Bernardino Mtns. | 1082 | Comment | ||
| RSA69875 | Amsonia tomentosa var. tomentosa | F. W. Peirson | 1924-7-6 | 4928 | San Bernardino | Mojave River, San Bernardino Mtns. Foot of Toll Road. | Comment | |||
| RSA69876 | Amsonia tomentosa var. tomentosa | F. W. Peirson | 1928-4-25 | 7921 | San Bernardino | High Plateau country, White Tank region, about 10miles south of Twntynine Plams. | Comment | |||
| RSA69896 | Fraxinus velutina var. coriacea | F. W. Peirson | 1922-5-14 | 2994 | San Bernardino | Bottom land of Mojave River, between Oro Grande and Bridge. | Comment | |||
| RSA69911 | Asclepias vestita | F. W. Peirson | 1921-5-29 | 887 | San Bernardino | Summit of Cajon Pass. | 1220 | Comment | ||
| RSA69919 | Apocynum X floribundum | F. W. Peirson | 1929-7-11 | 8457 | San Bernardino | fairly abundant on ridge and slopes back of and at Public Auto Camp, Fawnskin, Bear Valley. | 2043 | Comment | ||
| RSA69921 | Apocynum androsaemifolium | F. W. Peirson | 1930-7-8 | 9034 | San Bernardino | Fish Hatchery north slope of SugarLoaf. | 2363 | Comment Read comments Aug 15 2011 |
||
| RSA69923 | Apocynum cannabinum | F. W. Peirson | 1920-9-14 | 4469 | San Bernardino | Coldwater Fork of Lytle Creek, eastern San Gabriel Mountains | 2134 | Comment | ||
| RSA69941 | Nitrophila occidentalis | F. W. Peirson | 1920-6-22 | 1836 | San Bernardino | Chino Creek | 152 | Comment | ||
| RSA69949 | Grayia spinosa | F. W. Peirson | 1922-5-13 | 2998 | San Bernardino | Granite Wells, Mojave Desert. | Comment | |||
| RSA69952 | Krascheninnikovia lanata | F. W. Peirson | 1917-5-13 | 1831 | San Bernardino | West of Victorville. | Comment | |||
| RSA69954 | Krascheninnikovia lanata | F. W. Peirson | 1922-5-13 | 2999 | San Bernardino | Summit of Pilot Knob, Mohave Desert. | 1677 | Comment | ||
| RSA69974 | Abronia nana var. covillei | F. W. Peirson | 1924-7-6 | 1845 | San Bernardino | North shore of Bear Lake (Nr its West end) | 2043 | Comment | ||
| RSA69975 | Abronia pogonantha | F. W. Peirson | 1916-7-9 | 1844 | San Bernardino | Mojave Desert, near Victorville. | Comment | |||
| RSA69976 | Abronia pogonantha | F. W. Peirson | 1921-5-29 | 5216 | San Bernardino | Mojave River | 869 | Comment | ||
| RSA69978 | Abronia pogonantha | F. W. Peirson | 1930-4-13 | 8696 | San Bernardino | Garlic Spring, Mojave Desert | Comment | |||
| RSA69984 | Mirabilis pumila | F. W. Peirson | 1916-7-8 | 1850 | San Bernardino | Cushenbury Grade, north slope of San Bernardino Mtns. | Comment | |||
| RSA69985 | Mirabilis pumila | F. W. Peirson | 1920-8-26 | 2257 | San Bernardino | Santa Ana River, San Bernardino Mountains. | 1372 | Comment | ||
| RSA69986 | Mirabilis pumila | F. W. Peirson | 1922-8-26 | 5217 | San Bernardino | Cienega Seca Creek | 2378 | Comment | ||
| RSA69987 | Mirabilis pumila | F. W. Peirson | 1924-7-5 | 4920 | San Bernardino | Gold Mountain, near Baldwin Lake | 2210 | Comment | ||
| RSA69996 | Styrax redivivus | F. W. Peirson | 1916-7-3 | 851 | San Bernardino | Waterman Canyon. | Comment | |||
| RSA69998 | Styrax redivivus | F. W. Peirson | 1930-4-17 | 8750 | San Bernardino | Foothills between Lytle Creek and Cajon Creek, western San Bernardino County. | Comment | |||
| RSA69999 | Styrax redivivus | F. W. Peirson | 1924-9-2 | 5198 | San Bernardino | City Creek Road, San Bernardino Mts. | 1524 | Comment | ||
| RSA70013 | Amaranthus californicus | F. W. Peirson | 1926-9-5 | 7074 | San Bernardino | Lake Arrowhead | 1524 | Comment | ||
| RSA70020 | Suaeda calceoliformis | F. W. Peirson | 1924-9-1 | 5159 | San Bernardino | Saline flats at N end of Baldwin Lake, San Bernardino Mts. | 2043 | Comment | ||
| RSA70025 | Suaeda moquinii | F. W. Peirson | 1924-8-31 | 5123 | San Bernardino | Open desert, 4 miles west of Box S Ranch, so. Mojave Desert | 915 | Comment | ||
| RSA70032 | Salsola tragus | F. W. Peirson | 1916-7-8 | 1838 | San Bernardino | Box S Springs near north base of San Bernardino Mtns. | 1082 | Comment | ||
| RSA70045 | Corallorhiza maculata | Frank W. Peirson | 1922-6-25 | 4104 | San Bernardino | Barton Flats, San Bernardino Mountains. | 1982 | Comment | ||
| RSA70052 | Epipactis gigantea | Frank W. Peirson | 1922-7-7 | 5340 | San Bernardino | Rangers Cabin, Swarthout Valley, north side of San Gabriel Mountains/ W San Bernardino County. | 1799 | Comment | ||
| RSA70056 | Epipactis gigantea | Frank W. Peirson | 1918-7-8 | 13 | San Bernardino | San Antonio Canyon, San Gabriel Mountains, W San Bernardino [County] | 1829 | Comment | ||
| RSA70060 | Juncus rugulosus | F. W. Peirson | 1924-7-16 | 4974 | San Bernardino | Oak Glen Region, San Bernardino Mountains. | 1372 | Comment | ||
| RSA70065 | Juncus parryi | F. W. Peirson | 1922-8-23 | 3267 | San Bernardino | North slope of Mt. San Gorgonio, San Bernardino Mountains. | 2988 | Comment | ||
| RSA70068 | Platanthera sparsiflora | Frank W. Peirson | 1920-9-14 | 4284 | San Bernardino | Coldwater cienega, tributary of Lytle Creek, San Gabriel Mountains. | 2134 | Comment | ||
| RSA70074 | Piperia unalascensis | Frank W. Peirson | 1922-6-25 | 3152 | San Bernardino | Barton Flats, San Bernardino Mountains. | 1982 | Comment | ||
| RSA70084 | Platanthera sparsiflora | Frank W. Peirson | 1919-6-6 | 504 | San Bernardino | North Fork of San Antonio Creek, San Gabriel Mountains | 2287 | Comment | ||
| RSA70164 | Dichelostemma capitatum subsp. pauciflorum | F. W. Peirson | 1922-5-12 | 2993 | San Bernardino | 22 miles north of Barstow, | Comment | |||
| RSA70174 | Allium monticola | F. W. Peirson | 1922-7-21 | 5355 | San Bernardino | east trail to Mt. San Antonio. | 2866 | Comment | ||
| RSA70176 | Allium monticola | F. W. Peirson | 1919-6-14 | 5355 | San Bernardino | Icehouse canyon | 1829 | Comment | ||
| RSA70181 | Allium parryi | F. W. Peirson | 1922-6-25 | 3139 | San Bernardino | Along road shortly before Barton Flat Road, valley of Santa Ana River, San Bernardino Mountains. | 1616 | Comment | ||
| RSA70182 | Allium parryi | F. W. Peirson | 1916-7-6 | 1649 | San Bernardino | Bear Lake. San Bernardino Mts. | Comment | |||
| RSA70190 | Allium fimbriatum var. mohavense | F. W. Peirson | 1922-5-12 | 2990 | San Bernardino | About 1 mile south of top of grade near Pilot Knob, Mojave Desert. | Comment | |||
| RSA70203 | Allium campanulatum | F. W. Peirson | 1930-7-2 | 8970 | San Bernardino | Ridge south of summit of Johnson Grade, east end of San Bernardino Mountains. | 2134 | Comment | ||
| RSA70213 | Allium campanulatum | F. W. Peirson | 1926-5-30 | 6746 | San Bernardino | North side of Baldwin Lake. San Bernardino Mountains. | 2043 | Comment | ||
| RSA70264 | Juncus macrandrus | F. W. Peirson | 1924-9-2 | 5187 | San Bernardino | Fish Camp, San Bernardino Mountains. | 2058 | Comment | ||
| RSA70266 | Juncus macrandrus | F. W. Peirson | 1923-8-23 | 3969 | San Bernardino | High Creek, San Bernardino Mountains. | 2774 | Comment | ||
| RSA70295 | Juncus duranii | F. W. Peirson | 1918-7-7 | 1639 | San Bernardino | Kellly s Cabin, Ontario Ridge, San Gabriel Mountains. | 2500 | Comment | ||
| RSA70315 | Juncus xiphioides | F. W. Peirson | 1923-8-30 | 4024 | San Bernardino | Clyde Ranch, Lone Pine Canyon. Eastern San Gabriel Mountains, west San Bernardino County | 1494 | Comment | ||
| RSA70317 | Juncus tiehmii | F. W. Peirson | 1922-6-21 | 3105 | San Bernardino | East of Big Meadows, upper Santa Ana River, San Bernardino Mountains | 2165 | Comment | ||
| RSA70320 | Asclepias erosa | F. W. Peirson | 1930-5-31 | 8923 | San Bernardino | dandy desert in open scrub for several miles; 3 mi. south of Old Woman Spring. | Comment | |||
| RSA70324 | Asclepias erosa | F. W. Peirson | 1927-7-10 | 7354 | San Bernardino | Mexican Well, eastern border of San Bernardino Co. | 1220 | Comment | ||
| RSA70325 | Asclepias eriocarpa | F. W. Peirson | 1924-9-2 | 5194 | San Bernardino | roadside a few roads up the road toward Greer Valley; city Creek Road. | 1799 | Comment | ||
| RSA70339 | Asclepias californica | F. W. Peirson | 1921-5-30 | 2677 | San Bernardino | Mojave River, Victorville. | 884 | Comment | ||
| RSA70355 | Menodora spinescens | F. W. Peirson | 1930-4-16 | 8732 | San Bernardino | 8 miles south of Cima, eastern San Bernardino | Comment | |||
| RSA70359 | Cycladenia humilis var. venusta | F. W. Peirson | 1919-6-6 | 147 | San Bernardino | North Fork of San Antonio Creek, San Gabriel Mts. | 2438 | Comment | ||
| RSA70362 | Amsonia tomentosa var. tomentosa | F. W. Peirson | 1935-4-20 | 11511 | San Bernardino | Rough broken country near state line, about half way up long grade east of Lakeview. | Comment | |||
| RSA70363 | Amsonia tomentosa var. tomentosa | F. W. Peirson | 1926-5-29 | 6737 | San Bernardino | Considerable clumps on roadside, Cactus Flat, San Bernardino Mts. | 1799 | Comment | ||
| RSA70394 | Chamaesyce setiloba | F. W. Peirson | 1930-4-14 | 8705 | San Bernardino | About 3 miles north of Cave Spring. | Comment | |||
| RSA70401 | Chamaesyce serpillifolia | F. W. Peirson | 1923-8-24 | 3992 | San Bernardino | Vivian Creek | 2439 | Comment | ||
| RSA70456 | Allium burlewii | F. W. Peirson | 1922-6-21 | 3352 | San Bernardino | Big Meadow, upper Santa Ana River, San Bernardino Mountains | 2165 | Comment | ||
| RSA70457 | Allium burlewii | F. W. Peirson | 1918-7-7 | 266 | San Bernardino | Summit of Ontario Peak, San Gabriel Mts. | 2621 | Comment | ||
| RSA70469 | Allium lacunosum var. davisiae | F. W. Peirson | 1922-5-13 | 3007 | San Bernardino | 3 miles north of Granite Wells, Mojave Desert. | Comment | |||
| RSA70506 | Geranium richardsonii | F. W. Peirson | 1923-8-23 | 3982 | San Bernardino | High Creek, San Bernardino Mountains. | 2774 | Comment | ||
| RSA70517 | Geranium richardsonii | F. W. Peirson | 1930-7-4 | 8987 | San Bernardino | Green Creek, north slope of Sugarloaf, San Bernardino Mts. | 2378 | Comment | ||
| RSA70521 | Calochortus striatus | Frank W. Peirson | 1924-5-14 | 4563 | San Bernardino | Box S Springs in Cushenberry [Cushenbury] Springs Region, north base of San Bernardino Mountains. | 1082 | Comment Read comments Oct 25 2014 |
||
| RSA70524 | Calochortus invenustus | Frank W. Peirson | 1922-7-20 | 5377 | San Bernardino | Coldwater Creek cienega | 2529 | Comment | ||
| RSA70525 | Calochortus invenustus | Frank W. Peirson | 1922-6-22 | 3138 | San Bernardino | South Fork of Santa Ana River. | 2287 | Comment | ||
| RSA70527 | Calochortus invenustus | Frank W. Peirson | 1918-7-7 | 2851 | San Bernardino | Ontario Ridge, eastern San Gabriel Mountains. | 2530 | Comment | ||
| RSA70529 | Calochortus invenustus | Frank W. Peirson | 1930-7-1 | 8964 | San Bernardino | Baldwin Lake | 2043 | Comment | ||
| RSA70530 | Calochortus invenustus | Frank W. Peirson | 1930-7-8 | 9039 | San Bernardino | Fish Hatchery creek [possibly Green Canyon Creek], north slope of Sugarloaf | 2591 | Comment Read comments Aug 16 2011 |
||
| RSA70548 | Chamaesyce albomarginata | F. W. Peirson | 1930-7-5 | 9006 | San Bernardino | Road from Bear Lake to Holcomb Valley, San Bernardino Mts. | 2133 | Comment | ||
| RSA70577 | Sisyrinchium longipes | Frank W. Peirson | 1920-8-23 | s.n. | San Bernardino | Sugarloaf Mountain, San Bernardino Mountains. | 1982 | Comment | ||
| RSA70582 | Sisyrinchium bellum | Frank W. Peirson | 1922-6-23 | 4103 | San Bernardino | Holcomb Creek, San Bernardino Mountains. | 2439 | Comment | ||
| RSA70583 | Sisyrinchium bellum | Frank W. Peirson | 1918-7-8 | 11 | San Bernardino | San Antonio Canyon, Los Angeles-San Bernardino County Line | 1829 | Comment | ||
| RSA70592 | Iris missouriensis | Frank W. Peirson | 1926-5-30 | 6743 | San Bernardino | North side of Baldwin Lake. San Bernardino Mountains. Alt. 6700 ft. | 2043 | Comment | ||
| RSA70598 | Iris missouriensis | Frank W. Peirson | 1930-7-3 | 8980 | San Bernardino | Below Fish Hatchery, south of Baldwin Lake, San Bernardino Mountains. | 2195 | Comment | ||
| RSA70606 | Iris hartwegii subsp. australis | Frank W. Peirson | 1922-6-25 | 2140 | San Bernardino | Near Barton Flats, San Bernardino Mountains. | 1982 | Comment | ||
| RSA70852 | Arctostaphylos glandulosa subsp. glaucomollis | F. W. Peirson | 1924-9-2 | 5196 | San Bernardino | City Creek Road, San Bernardino Mts. | 1524 | Comment | ||
| RSA70865 | Arctostaphylos pringlei subsp. drupacea | F. W. Peirson | 1922-6-22 | 4466 | San Bernardino | ridge west of canyon of south fork of Santa Ana river, San Bernardino Mts. | 2058 | Comment | ||
| RSA71005 | Cuscuta ceanothi | F. W. Peirson | 1920-8-26 | 2740 | San Bernardino | Santa Ana River | 1372 | Comment | ||
| RSA71007 | Cuscuta denticulata | F. W. Peirson | 1916-7-8 | 897 | San Bernardino | BoxS Springs near north base of San Bernardino Mtns. | 1082 | Comment | ||
| RSA71008 | Cuscuta indecora | F. W. Peirson | 1924-9-1 | 5147 | San Bernardino | Cushenbury Springs, N base of San Bernardino Mountains., Mojave Desert. | 1232 | Comment | ||
| RSA71119 | Calystegia occidentalis subsp. fulcrata | F. W. Peirson | 1930-7-4 | 8988 | San Bernardino | Green Creek, north slope of Sugarloaf, San Bernardino Mts. | 2378 | Comment | ||
| RSA71796 | Saltugilia splendens subsp. grantii | F. W. Peirson | 1919-6-4 | 457 | San Bernardino | Icehouse Canyon | 1677 | Comment | ||
| RSA71824 | Saltugilia splendens subsp. splendens | F. W. Peirson | 1922-7-5 | 3161 | San Bernardino | Swartout Valley, 1 mile east of Big Pines | 2012 | Comment | ||
| RSA71826 | Saltugilia splendens | F. W. Peirson | 1930-7-8 | 9032 | San Bernardino | Fish Hatchery creek [possibly Green Canyon Creek], north slope of Sugarloaf, San Bernardino Mountains. | 2256 | Comment Read comments Aug 16 2011 |
||
| RSA71828 | Saltugilia splendens | F. W. Peirson | 1929-7-11 | 8470 | San Bernardino | City Creek Road along the slopes of Bear Canyon, San Bernardino Mountains. | 2134 | Comment | ||
| RSA71833 | Gilia leptantha subsp. leptantha | F. W. Peirson | 1924-7-13 | 4942 | San Bernardino | Along bank of Fish Creek, upper Santa Ana River | 2317 | Comment | ||
| RSA71834 | Gilia leptantha subsp. leptantha | F. W. Peirson | 1922-7-24 | 2259 | San Bernardino | Santa Ana River | 1905 | Comment | ||
| RSA71841 | Gilia latiflora subsp. latiflora | F. W. Peirson | 1930-5-31 | 8918 | San Bernardino | Just east of San Bernardino County line on road from Lovejoy Buttes to Adelanto. | Comment | |||
| RSA71843 | Gilia latiflora subsp. latiflora | F. W. Peirson | 1922-5-14 | 4140 | San Bernardino | 8 miles north of Barstow. | Comment | |||
| RSA71850 | Gilia cana subsp. speciformis | F. W. Peirson | 1922-5-12 | 4138 | San Bernardino | Mojave Desert. 10 miles north of Barstow. | Comment | |||
| RSA71866 | Allophyllum violaceum | F. W. Peirson | 1933-10-15 | 10926 | San Bernardino | Dry unused roadway on southwest slope of Baldwin Lake. | 2058 | Comment | ||
| RSA71868 | Gilia cana subsp. bernardina | F. W. Peirson | 1926-4-28 | 6686 | San Bernardino | About 5 miles north of Box S Spring, Mojave Desert. | Comment | |||
| RSA71877 | Gilia leptantha subsp. transversa | F. W. Peirson | 1924-5-15 | 4569 | San Bernardino | Cactus Flat | 1829 | Comment | ||
| RSA71881 | Gilia aliquanta subsp. aliquanta | F. W. Peirson | 1921-5-29 | 4131 | San Bernardino | Along old road, north slope of Cajon Pass. | 1098 | Comment | ||
| RSA71938 | Collomia linearis | F. W. Peirson | 1916-7-6 | 913 | San Bernardino | Bear Lake region [Big Bear Lake], San Bernardino Mountains. | Comment | |||
| RSA71997 | Phlox austromontana | F. W. Peirson | 1924-5-15 | 4565 | San Bernardino | Cactus Flat, San Bernardino Mts. level open place on hills. | 1768 | Comment | ||
| RSA71999 | Phlox austromontana | F. W. Peirson | 1926-5-30 | 6745 | San Bernardino | On low hills, chiefly along summits on north side of Baldwin Lake. San Bernardino Mountains. | 2043 | Comment | ||
| RSA72001 | Phlox austromontana | F. W. Peirson | 1930-4-29 | 8757 | San Bernardino | 1 mile west of the Mohave River on the Hesperia Road. | 854 | Comment | ||
| RSA72030 | Polemonium occidentale | F. W. Peirson | 1920-8-25 | 901 | San Bernardino | South Fork of Santa Ana River, San Bernardino Mountains. | 2439 | Comment | ||
| RSA72032 | Polemonium occidentale | F. W. Peirson | 1922-8-25 | 3280 | San Bernardino | South fork of the Santa Ana River. | 2530 | Comment | ||
| RSA72039 | Phlox dolichantha | F. W. Peirson | 1916-7-6 | 905 | San Bernardino | Ridge south of Bear Valley. | Comment | |||
| RSA72040 | Phlox dolichantha | F. W. Peirson | 1926-5-30 | 6752 | San Bernardino | South side of Bear Lake near road to Santa Ana River | Comment | |||
| RSA72083 | Microsteris gracilis subsp. gracilis | F. W. Peirson | 1924-5-16 | 4586 | San Bernardino | 2.5 miles from Bear Lake Dam on south side of Bear Lake | 2043 | Comment | ||
| RSA72085 | Microsteris gracilis subsp. gracilis | F. W. Peirson | 1922-6-22 | 3099 | San Bernardino | South Fork of Santa Ana River. | 2622 | Comment | ||
| RSA72091 | Epilobium canum subsp. latifolium | F. W. Peirson | 1920-8-23 | 3349 | San Bernardino | Santa Ana River | 1905 | Comment | ||
| RSA72092 | Epilobium canum subsp. latifolium | F. W. Peirson | 1920-8-26 | 6480 | San Bernardino | Santa Ana River | 1372 | Comment | ||
| RSA72095 | Epilobium canum subsp. latifolium | F. W. Peirson | 1924-9-2 | 5174 | San Bernardino | Fish Camp | 2058 | Comment | ||
| RSA72113 | Epilobium brachycarpum | F. W. Peirson | 1920-8-23 | 4453 | San Bernardino | South Fork of Santa Ana River, San Bernardino Mts. | 1921 | Comment | ||
| RSA72114 | Epilobium brachycarpum | F. W. Peirson | 1916-7-6 | 2267 | San Bernardino | Bear Lake; San Bernardino Mountains. | 2058 | Comment | ||
| RSA72116 | Epilobium oregonense | F. W. Peirson | 1924-7-5 | 2308 | San Bernardino | Bluff Lake, San Bernardino Mountains | 2317 | Comment | ||
| RSA72127 | Epilobium ciliatum subsp. glandulosum | F. W. Peirson | 1920-9-14 | 2304 | San Bernardino | Coldwater Cienega, Lytle Creek. | 2134 | Comment | ||
| RSA72130 | Epilobium ciliatum subsp. ciliatum | F. W. Peirson | 1924-7-13 | 4947 | San Bernardino | South Fork of Mission Creek; San Bernardino Mountains | 2439 | Comment | ||
| RSA72131 | Epilobium angustifolium subsp. circumvagum | F. W. Peirson | 1924-7-13 | 4935 | San Bernardino | Fish Creek, San Bernardino Mountains. | 2058 | Comment | ||
| RSA72143 | Gayophytum decipiens | F. W. Peirson | 1932-5-28 | 9965 | San Bernardino | southwest shores of Baldwin Lake, San Bernardino Mountains. | 2058 | Comment | ||
| RSA72149 | Gayophytum decipiens | F. W. Peirson | 1906-8-14 | 799 | San Bernardino | Bluff Lake, San Bernardino Mountains. | 2256 | Comment | ||
| RSA72169 | Epilobium ciliatum subsp. ciliatum | F. W. Peirson | 1929-7-11 | 8460 | San Bernardino | Fawskin, Bear Valley, San Bernardino Mountains. | 2043 | Comment | ||
| RSA72171 | Epilobium ciliatum subsp. ciliatum | F. W. Peirson | 1919-4-16 | 382 | San Bernardino | South slope of Cajon Pass. | 686 | Comment | ||
| RSA72181 | Epilobium glaberrimum subsp. glaberrimum | F. W. Peirson | 1920-9-14 | 2303 | San Bernardino | Coldwater Cienega, Lytle Creek. | 2134 | Comment | ||
| RSA72197 | Oenothera californica subsp. californica | F. W. Peirson | 1920-8-23 | 2258 | San Bernardino | San Bernardino Mountains; Santa Ana River. | 1905 | Comment | ||
| RSA72199 | Oenothera californica subsp. californica | F. W. Peirson | 1921-5-29 | 2708 | San Bernardino | Almost due east of Hesperia and on Mojave River. | 884 | Comment | ||
| RSA72205 | Camissonia bistorta | F. W. Peirson | 1919-4-16 | 4700 | San Bernardino | Cajon Pass, west end of San Bernardino Mts. | 686 | Comment | ||
| RSA72230 | Oenothera primiveris subsp. bufonis | F. W. Peirson | 1922-5-12 | 2997 | San Bernardino | 17 miles south of Barstow on Victorville road. | Comment | |||
| RSA72234 | Camissonia palmeri | F. W. Peirson | 1922-5-13 | 2977 | San Bernardino | Granite Wells, Mojave Desert. | Comment | |||
| RSA72256 | Camissonia claviformis subsp. claviformis | F. W. Peirson | 1932-3-25 | 9835 | San Bernardino | North of Yermo. | 610 | Comment | ||
| RSA72296 | Aliciella lottiae | F. W. Peirson | 1924-5-14 | 4577 | San Bernardino | 21 miles east of Victorville. | Comment | |||
| RSA72314 | Gilia diegensis | F. W. Peirson | 1919-4-16 | 4133 | San Bernardino | South slope of Cajon Pass. | 686 | Comment | ||
| RSA72321 | Gilia scopulorum | F. W. Peirson | 1932-3-24 | 9830 | San Bernardino | Baker | Comment | |||
| RSA72343 | Epilobium canum subsp. latifolium | F. W. Peirson | 1922-7-18 | 4115 | San Bernardino | Rocky outcrop along south edge of Ontario Peak Ridge. San Gabriel Mountains | 2591 | Comment | ||
| RSA72344 | Epilobium canum subsp. latifolium | F. W. Peirson | 1920-9-14 | 2293 | San Bernardino | Coldwater Canyon, Lytle Creek, San Gabriel Mtns. | 2363 | Comment | ||
| RSA72345 | Epilobium canum subsp. latifolium | F. W. Peirson | 1923-8-21 | 7344 | San Bernardino | Small canyon back of Forest Home | 1829 | Comment | ||
| RSA72350 | Epilobium canum subsp. latifolium | F. W. Peirson | 1926-9-6 | 7084 | San Bernardino | Deep Creek Toll Road. | 1372 | Comment | ||
| RSA72996 | Leptosiphon breviculus | F. W. Peirson | 1924-5-15 | 4564 | San Bernardino | Cactus Flat, San Bernardino Mts. level open place on hills. | 1768 | Comment | ||
| RSA73008 | Linanthus killipii | F. W. Peirson | 1926-5-30 | 6748 | San Bernardino | On low hills, chiefly along summits on north side of Baldwin Lake. San Bernardino Mountains. | 2043 | Comment | ||
| RSA73011 | Linanthus concinnus | F. W. Peirson | 1920-5-19 | 2142 | San Bernardino | Devils Backbone Ridge | 2134 | Comment | ||
| RSA73028 | Linanthus jonesii | F. W. Peirson | 1935-4-18 | 11483 | San Bernardino | Along canyon of Copper Basin Creek, Whipple Mountains, eastern Colorado Desert | Comment | |||
| RSA73029 | Leptosiphon breviculus | F. W. Peirson | 1928-9-5 | 7082 | San Bernardino | Along shores of Arrowhead Lake. | 1524 | Comment | ||
| RSA73030 | Leptosiphon breviculus | F. W. Peirson | 1921-5-29 | 2420 | San Bernardino | Along old road, north slope of Cajon Pass. | 1098 | Comment | ||
| RSA73034 | Leptosiphon breviculus | F. W. Peirson | 1926-5-29 | 6738 | San Bernardino | Cactus Flat. | Comment | |||
| RSA73038 | Linanthus jonesii | F. W. Peirson | 1932-3-24 | 9827 | San Bernardino | Baker, along SW base of rock hill | 280 | Comment | ||
| RSA73070 | Linanthus demissus | F. W. Peirson | 1922-5-14 | 2967 | San Bernardino | In so-called Devil's Kitchen; half way between Barstow and Victorville. | Comment | |||
| RSA73073 | Linanthus demissus | F. W. Peirson | 1932-3-24 | 9826 | San Bernardino | Baker. Along southwest base of rocky hills. | Comment | |||
| RSA73081 | Linanthus dichotomus subsp. dichotomus | F. W. Peirson | 1922-5-13 | 2984 | San Bernardino | Granite Wells, Mojave Desert. | Comment | |||
| RSA73280 | Linanthus pungens | F. W. Peirson | 1919-6-4 | s.n. | San Bernardino | San Gabriel Mountains: Ontario Ridge, Icehouse Canyon | 1890 | Comment | ||
| RSA73287 | Linanthus pungens subsp. hallii | F. W. Peirson | 1930-7-3 | 8981 | San Bernardino | Below Fish Hatchery, south of Baldwin Lake, San Bernardino Mountains. | 2195 | Comment | ||
| RSA73288 | Linanthus pungens subsp. hallii | F. W. Peirson | 1922-6-23 | 3348 | San Bernardino | Holcomb Creek. | 2591 | Comment | ||
| RSA73328 | Clarkia purpurea subsp. quadrivulnera | F. W. Peirson | 1919-6-5 | 467 | San Bernardino | San Antonio Canyon, San Gabriel Mountains. | 1341 | Comment | ||
| RSA73677 | Leptosiphon floribundus | F. W. Peirson | 1922-6-25 | 3116 | San Bernardino | Near Barton Flats. | 1829 | Comment | ||
| RSA73682 | Linanthus aureus subsp. decorus | F. W. Peirson | 1920-3-31 | 2690 | San Bernardino | Fenner | 610 | Comment | ||
| RSA73689 | Leptosiphon breviculus | F. W. Peirson | 1916-7-6 | 938 | San Bernardino | Bear Lake. San Bernardino Mts. | Comment | |||
| RSA74170 | Phacelia ambigua | F. W. Peirson | 1926-4-27 | 6679 | San Bernardino | Along rocky hill, 14 miles E of victorville | Comment | |||
| RSA74173 | Phacelia ambigua | F. W. Peirson | 1932-3-23 | 9814 | San Bernardino | Along base of desert hills,18 miles S of Needles on Blythe Road | Comment | |||
| RSA74190 | Phacelia cicutaria var. hispida | F. W. Peirson | 1919-6-4 | 4715 | San Bernardino | San Antonio Canyon. | 1448 | Comment | ||
| RSA74200 | Phacelia campanularia subsp. vasiformis | F. W. Peirson | 1926-4-27 | 6678 | San Bernardino | 13 miles W of Victorville | 915 | Comment | ||
| RSA74495 | Phacelia neglecta | F. W. Peirson | 1922-5-14 | 3010 | San Bernardino | Half between Barstow and Victorville. | Comment | |||
| RSA74496 | Phacelia neglecta | F. W. Peirson | 1932-3-24 | 9834 | San Bernardino | Baker. Along southwest base of rocky hills. | Comment | |||
| RSA74503 | Phacelia exilis | F. W. Peirson | 1930-7-7 | 9017 | San Bernardino | Arrastre Flat, San Bernardino Mountains | 2287 | Comment | ||
| RSA74504 | Phacelia mohavensis | F. W. Peirson | 1916-7-6 | 961 | San Bernardino | Bear Lake. San Bernardino Mts. | Comment | |||
| RSA74506 | Phacelia exilis | F. W. Peirson | 1932-5-29 | 9969 | San Bernardino | Along road to Fish Hatchery, south of Baldwin Lake | 2104 | Comment | ||
| RSA74510 | Phacelia mustelina | F. W. Peirson | 1921-12-18 | 2650 | San Bernardino | 2 miles North of Granite Wells, rocky point east of road | Comment | |||
| RSA74521 | Phacelia pachyphylla | F. W. Peirson | 1927-5-8 | 7291 | San Bernardino | 10 miles north of Barstow on road to Granite Wells, Mojave Desert. | Comment | |||
| RSA74701 | Phacelia rotundifolia | F. W. Peirson | 1922-5-13 | 2979 | San Bernardino | Summit of Pilot Knob, Mohave Desert. | 1677 | Comment | ||
| RSA74714 | Nama densa var. parviflora | F. W. Peirson | 1932-5-10 | 9958 | San Bernardino | 26 miles W of Baker on the Barstow road. | 457 | Comment | ||
| RSA74716 | Nama demissa var. covillei | F. W. Peirson | 1928-4-1 | 7766 | San Bernardino | 33 miles north of Baker. | Comment | |||
| RSA74726 | Phacelia curvipes | F. W. Peirson | 1916-7-6 | 986 | San Bernardino | Bear Lake. San Bernardino Mts. | Comment | |||
| RSA74816 | Nama pusilla | F. W. Peirson | 1932-3-24 | 9828 | San Bernardino | Baker, along SW base of rock hill | 280 | Comment | ||
| RSA74818 | Nama rothrockii | F. W. Peirson | 1930-7-7 | 9025 | San Bernardino | Arrastre Flat | 2287 | Comment | ||
| RSA74925 | Phacelia hastata | F. W. Peirson | 1930-7-4 | 8998 | San Bernardino | Greene Creek, north slope of Sugerloaf. | 2515 | Comment | ||
| RSA74927 | Phacelia imbricata subsp. patula | F. W. Peirson | 1930-7-5 | 9005 | San Bernardino | Quarry northwest of Baldwin Lake, San Bernardino Mountains. | 2073 | Comment | ||
| RSA74934 | Phacelia davidsonii | F. W. Peirson | 1919-6-6 | s.n. | San Bernardino | San Antonio Canyon | 1677 | Comment | ||
| RSA74945 | Phacelia curvipes | F. W. Peirson | 1930-7-2 | 8969 | San Bernardino | Ridge south of summit of Johnson Grade, east end of San Bernardino Mountains. | 2134 | Comment | ||
| RSA75127 | Nemacladus sigmoideus | F. W. Peirson | 1926-5-30 | 6747 | San Bernardino | North side of Baldwin Lake. San Bernardino Mountains. | 2043 | Comment | ||
| RSA75140 | Nemacladus rubescens | F. W. Peirson | 1922-5-12 | 1209 | San Bernardino | Mojave Desert. 15 miles north of Victorville. | Comment | |||
| RSA75342 | Phacelia bicolor | F. W. Peirson | 1930-5-31 | 8919 | San Bernardino | Road from Lovejoy Buttes to Adelanto, southwestern Mojave Desert. ca. 20 mi. west of Victorville. | Comment | |||
| RSA75358 | Phacelia fremontii | F. W. Peirson | 1932-3-25 | 9839 | San Bernardino | 18 miles from Barstow on the Victorville road, Mojave Desert | 732 | Comment | ||
| RSA75360 | Phacelia fremontii | F. W. Peirson | 1924-5-14 | 4553 | San Bernardino | 2 miles N of Cajon Pass. | 915 | Comment Read comments Feb 19 2017 |
||
| RSA75366 | Camissonia brevipes subsp. brevipes | F. W. Peirson | 1932-3-24 | 9820 | San Bernardino | Baker, along SW base of rock hill | 280 | Comment | ||
| RSA75368 | Camissonia brevipes subsp. brevipes | F. W. Peirson | 1922-5-12 | 3015 | San Bernardino | Mojave Desert. 10 miles north of Barstow. | Comment | |||
| RSA75372 | Camissonia boothii subsp. boothii | F. W. Peirson | 1916-7-9 | 792 | San Bernardino | Mojave Desert, near Victorville. | Comment | |||
| RSA75383 | Camissonia strigulosa | F. W. Peirson | 1921-5-29 | 4514 | San Bernardino | north slope of Cajon Pass | 1098 | Comment | ||
| RSA75392 | Oenothera cespitosa subsp. marginata | F. W. Peirson | 1926-5-30 | 6742 | San Bernardino | North side of Baldwin Lake. San Bernardino Mountains. | 2043 | Comment | ||
| RSA75400 | Camissonia boothii subsp. desertorum | F. W. Peirson | 1921-5-30 | 2580 | San Bernardino | Mojave Desert, Hesperia | Comment | |||
| RSA75446 | Camissonia confusa | F. W. Peirson | 1919-5-30 | 2706 | San Bernardino | San Antonio Canyon, San Gabriel Mts. | 1677 | Comment | ||
| RSA75516 | Phacelia fremontii | F. W. Peirson | 1932-4-17 | 9864 | San Bernardino | 20 miles W of Adelanto, Mojave Desert | Comment | |||
| RSA75522 | Phacelia fremontii | F. W. Peirson | 1927-5-8 | 7293 | San Bernardino | Half way between Victorville and Barstow. | Comment | |||
| RSA75526 | Phacelia fremontii | F. W. Peirson | 1930-4-16 | 8729 | San Bernardino | Cima road, 8 miles S of the Las Vegas to Baker road | Comment | |||
| RSA75527 | Phacelia fremontii | F. W. Peirson | 1930-4-16 | 8745 | San Bernardino | About 18 miles north of Goffs on the Cima Road. | Comment | |||
| RSA75686 | Camissonia refracta | F. W. Peirson | 1930-4-14 | 8702 | San Bernardino | Sandy soil, near Cave Spring, Mojave Desert. | Comment | |||
| RSA75866 | Nemophila menziesii var. integrifolia | F. W. Peirson | 1919-4-16 | 364 | San Bernardino | South slope of Cajon Pass. | 686 | Comment | ||
| RSA75881 | Nemophila menziesii var. integrifolia | F. W. Peirson | 1924-5-16 | 4602 | San Bernardino | City Creek Road, Fredalba, San Bernardino Mts. | 1524 | Comment | ||
| RSA75882 | Nemophila menziesii var. integrifolia | F. W. Peirson | 1920-5-8 | 2739 | San Bernardino | San Antonio Canyon. | 1341 | Comment | ||
| RSA75942 | Phacelia curvipes | F. W. Peirson | 1922-6-23 | 3130 | San Bernardino | Holcomb Creek, San Bernardino Mts | 2515 | Comment | ||
| RSA75945 | Phacelia austromontana | F. W. Peirson | 1920-5-19 | 4717 | San Bernardino | northward extension of Devil s Backbone | 1982 | Comment | ||
| RSA75946 | Phacelia austromontana | F. W. Peirson | 1919-6-4 | 506 | San Bernardino | Icehouse Canyon | 2058 | Comment | ||
| RSA75947 | Phacelia austromontana | F. W. Peirson | 1930-7-4 | s.n. | San Bernardino | Green Creek, north slope of Sugarloaf, San Bernardino Mts. | 2378 | Comment | ||
| RSA75996 | Eucrypta micrantha | F. W. Peirson | 1935-4-18 | s.n. | San Bernardino | Copper Basin Creek, Whipple Mountains, eastern Colorado Desert. | Comment | |||
| RSA75998 | Nemophila spatulata | F. W. Peirson | 1922-6-24 | 3119 | San Bernardino | About one fourth mile east of mouth of South Fork of Santa Ana River. | 1951 | Comment | ||
| RSA766085 | Eriogonum inflatum var. deflatum | F. W. Peirson | 1935-4-18 | 11479 | San Bernardino | Whipple Mountains. Copper Basin Creek. A mile or two up the canyon. | Comment | |||
| RSA766476 | Eriogonum trichopes | F. W. Peirson | 1922-5-12 | 2975 | San Bernardino | 10 miles north of Barstow. | Comment | |||
| RSA76942 | Rhus trilobata var. anisophylla | F. W. Peirson | 1920-4-16 | 8734 | San Bernardino | Cima road 12 miles S of Las Vegas to Baker Hgwy. | Comment | |||
| RSA76943 | Rhus trilobata var. pilosissima | F. W. Peirson | 1921-5-30 | 5312 | San Bernardino | Summit of Cajon Pass.. | 1159 | Comment | ||
| RSA76959 | Stillingia paucidentata | F. W. Peirson | 1922-5-12 | 2996 | San Bernardino | Between Oro Grande and the bridge over the Mohave River. | Comment | |||
| RSA76980 | Acer negundo subsp. californicum | F. W. Peirson | 1924-7-16 | 4977 | San Bernardino | Abubdant in Poatato Canyon, Oak Glen, San Bernardno Mountains. Alt. 4800 ft. | 1463 | Comment | ||
| RSA76992 | Acer glabrum subsp. diffusum | F. W. Peirson | 1930-7-4 | 8990 | San Bernardino | Greene Creek, north slope of Sugarloaf Peak | 2439 | Comment | ||
| RSA77035 | Malacothamnus orbiculatus | F. W. Peirson | 1924-9-1 | 5153 | San Bernardino | Johnson s Grade, east end of San Bernardino Mountains | 1982 | Comment | ||
| RSA77036 | Malacothamnus orbiculatus | F. W. Peirson | 1929-9-11 | 8591 | San Bernardino | Bear Valley Boulevard near Peter Pan Woodland Club, Bear Valley, San Bernardino Mts. | 2073 | Comment | ||
| RSA77058 | Loeseliastrum schottii | F. W. Peirson | 1927-5-7 | 7275 | San Bernardino | 1 mile east of Kramer. | 2218 | Comment | ||
| RSA77061 | Loeseliastrum matthewsii | F. W. Peirson | 1926-4-27 | 6683 | San Bernardino | Near Box S Ranch, 18 miles east of Victorville, Mojave Desert. | Comment | |||
| RSA77067 | Langloisia setosissima subsp. punctata | F. W. Peirson | 1927-5-7 | 7287 | San Bernardino | 4 miles west of Barstow | Comment | |||
| RSA77069 | Langloisia setosissima subsp. punctata | F. W. Peirson | 1932-3-24 | 9832 | San Bernardino | Baker, along SW base of rock hill | 280 | Comment | ||
| RSA77070 | Langloisia setosissima subsp. punctata | F. W. Peirson | 1922-5-14 | 3009 | San Bernardino | Half between Barstow and Victorville. | Comment | |||
| RSA77151 | Ceanothus cordulatus | F. W. Peirson | 1920-9-14 | 2277 | San Bernardino | Coldwater Fork of Lytle Creek, eastern San Gabriel Mountains | 2134 | Comment | ||
| RSA77156 | Ceanothus leucodermis | F. W. Peirson | 1921-7-18 | 4446 | San Bernardino | Lytle Creek, San Gabriel Mts. | 1677 | Comment | ||
| RSA77164 | Ceanothus leucodermis | F. W. Peirson | 1920-9-14 | 2281 | San Bernardino | Coldwater Canyon, San Gabriel Mts. | 2134 | Comment | ||
| RSA77196 | Eremalche rotundifolia | F. W. Peirson | 1922-5-12 | 2987 | San Bernardino | 10 miles N of Barstow on Granite Wells Road | Comment | |||
| RSA77200 | Eremalche exilis | F. W. Peirson | 1921-5-29 | 4449 | San Bernardino | Mojave River. | 884 | Comment | ||
| RSA77233 | Eriodictyon trichocalyx var. trichocalyx | F. W. Peirson | 1919-6-4 | 989 | San Bernardino | San Antonio Canyon. | 1448 | Comment | ||
| RSA77245 | Hesperochiron californicus | F. W. Peirson | 1932-5-28 | 9964 | San Bernardino | Southwest shore of Baldwin Lake, San Bernardino Mountains. | 2043 | Comment | ||
| RSA77248 | Hesperochiron californicus | F. W. Peirson | 1924-5-16 | 4585 | San Bernardino | A few feet back from margin of Bear Lake, at east end; San Bernardino Mountains. | 2043 | Comment | ||
| RSA77254 | Nama californica | F. W. Peirson | 1921-5-29 | 2421 | San Bernardino | Cajon Pass | Comment | |||
| RSA77420 | Petalonyx thurberi | F. W. Peirson | 1916-6-8 | 2077 | San Bernardino | Cushenberry Grade, North base of San Bernardino Mts. | Comment | |||
| RSA77422 | Petalonyx thurberi | F. W. Peirson | 1923-9-1 | 4452 | San Bernardino | In one of valleys near Blvd, on road E of Phelan, Mojave Desert, San Bernardino County | Comment | |||
| RSA77428 | Petalonyx nitidus | F. W. Peirson | 1916-7-8 | 2076 | San Bernardino | Cushenberry Grade on north base of San Bernardino Mountains | Comment | |||
| RSA77508 | Aralia californica | F. W. Peirson | 1922-9-14 | 4463 | San Bernardino | Cascade Canyon, fork of San Antonio Canyon | 1371 | Comment | ||
| RSA77509 | Aralia californica | F. W. Peirson | 1922-9-14 | 4463 | San Bernardino | Cascade Canyon, fork of San Antonio Canyon | 1371 | Comment | ||
| RSA77572 | Lappula occidentalis var. occidentalis | F. W. Peirson | 1916-7-8 | 1004 | San Bernardino | Cushenberry Grade on north base of San Bernardino Mountains | Comment | |||
| RSA77723 | Viola pinetorum subsp. pinetorum | F. W. Peirson | 118 | San Bernardino | Summit of Mt. San Antonio. | 3049 | Comment | |||
| RSA77728 | Viola pinetorum subsp. pinetorum | F. W. Peirson | 1920-5-29 | 2662 | San Bernardino | Ontario Ridge, near Ontario Peak, San Gabriel Mtns., western San Bernardino Co. | 2591 | Comment | ||
| RSA77742 | Viola sororia subsp. affinis | F. W. Peirson | 1920-5-20 | 2145 | San Bernardino | Lytle Creek, San Gabriel Mts. | 1067 | Comment | ||
| RSA77759 | Viola douglasii | F. W. Peirson | 1930-4-28 | 8754 | San Bernardino | Sugarloaf Road south of Baldwin Lake | 2134 | Comment | ||
| RSA77760 | Viola douglasii | F. W. Peirson | 1906-8-15 | 748 | San Bernardino | Lookout Mt., Bluff Lake, San Bernardino Mountains. | Comment | |||
| RSA77762 | Viola douglasii | F. W. Peirson | 1924-5-15 | 4592 | San Bernardino | Baldwin Lake. | 2043 | Comment | ||
| RSA77774 | Viola macloskeyi | F. W. Peirson | 1922-7-18 | 3202 | San Bernardino | Kelly's Cabin, Ontario Ridge, San Gabriel Mountains, west San Bernardino County. | 2470 | Comment | ||
| RSA77775 | Viola macloskeyi | F. W. Peirson | 1924-7-5 | 4890 | San Bernardino | Bluff Lake, San Bernardino Mountains. | 2287 | Comment | ||
| RSA77777 | Viola macloskeyi | F. W. Peirson | 1922-6-22 | 3108 | San Bernardino | South Fork of Santa Ana River | 2348 | Comment | ||
| RSA77794 | Lappula occidentalis var. occidentalis | F. W. Peirson | 1924-5-15 | 4603 | San Bernardino | Wood on N side of East end of Bear Lake. | 2043 | Comment | ||
| RSA77795 | Lappula occidentalis var. occidentalis | F. W. Peirson | 1922-6-24 | 4058 | San Bernardino | Santa Ana River, alt 6250ft, San Bernardino Mts. | Comment | |||
| RSA77815 | Heliotropium convolvulaceum var. californicum | F. W. Peirson | 1932-5-10 | 9957 | San Bernardino | 26 miles W of Baker on the Barstow road. | 457 | Comment | ||
| RSA77818 | Pectocarya setosa | F. W. Peirson | 1924-5-14 | 4552 | San Bernardino | 2 miles N of Cajon Pass. | 915 | Comment | ||
| RSA77847 | Callitriche heterophylla | F. W. Peirson | 1924-9-1 | 5172 | San Bernardino | Arrastre Flat, San Bernardino Mts. | Comment | |||
| RSA77861 | Pectocarya setosa | F. W. Peirson | 1919-4-16 | 363 | San Bernardino | Cajon Pass | 762 | Comment | ||
| RSA77875 | Heliotropium curassavicum var. oculatum | F. W. Peirson | 1930-7-1 | 8962 | San Bernardino | Baldwin Lake. | 2043 | Comment | ||
| RSA77883 | Tiquilia nuttallii | F. W. Peirson | 1916-7-8 | 993 a | San Bernardino | Cushenbury Springs, north base of San Bernardino Mountains. | Comment | |||
| RSA78545 | Carex praegracilis | F. W. Peirson | 1935-11-10 | 13601 | San Bernardino | Southwest of Baldwin Lake, San Bernardino Mountains. | 2058 | Comment | ||
| RSA78646 | Castilleja cinerea | F. W. Peirson | 1943-5-30 | 13548 | San Bernardino | Baldwin Lake. | Comment | |||
| RSA78647 | Eriophyllum confertiflorum | F. W. Peirson | 1943-5-16 | 13549 | San Bernardino | Highland Ave, E of Euclid Ave and W of San Bernardino. | Comment | |||
| RSA78649 | Erigeron divergens | F. W. Peirson | 1943-5-30 | 13551 | San Bernardino | Baldwin Lake. | Comment | |||
| RSA78650 | Potentilla anserina | F. W. Peirson | 1943-5-30 | 13552 | San Bernardino | Baldwin Lake. | Comment | |||
| RSA79461 | Collinsia torreyi var. wrightii | F. W. Peirson | 1919-6-4 | 454 | San Bernardino | Icehouse Canyon Divide, San Gabriel Mountains. | 2409 | Comment | ||
| RSA79467 | Collinsia torreyi var. wrightii | F. W. Peirson | 1927-6-15 | 7346 | San Bernardino | West side of the Coldwater; Devil's Backbone, San Gabriel Mountains. | 2591 | Comment | ||
| RSA79628 | Mimulus parishii | F. W. Peirson | 1916-7-9 | 1127 | San Bernardino | Mojave Desert, near Victorville. | Comment | |||
| RSA79632 | Mimulus purpureus | F. W. Peirson | 1932-5-29 | 9968 | San Bernardino | Along road to Fish Hatchery, south of Baldwin Lake | 2104 | Comment | ||
| RSA79780 | Penstemon X parishii | F. W. Peirson | 1921-5-30 | 2429 | San Bernardino | Road to Lone Pine Canyon, eastern San Gabriel Mountains. | 991 | Comment | ||
| RSA79781 | Penstemon eatonii subsp. undosus | F. W. Peirson | 1916-07 | s.n. | San Bernardino | Above Cactus Flat, on road from Cushenberry to Bear Valley. | Comment | |||
| RSA79794 | Collinsia callosa | F. W. Peirson | 1922-5-13 | 2980 | San Bernardino | north slope of Pilot Knob, northwestern Mojave Desert. | 1296 | Comment | ||
| RSA79851 | Penstemon grinnellii | F. W. Peirson | 1924-7-5 | 4907 | San Bernardino | Bluff Lake, San Bernardino Mountains. | 2287 | Comment | ||
| RSA79853 | Penstemon X parishii | F. W. Peirson | 1919-4-16 | 1107 | San Bernardino | Cajon Pass, west end of San Bernardino Mts. | 686 | Comment | ||
| RSA79865 | Penstemon rostriflorus | F. W. Peirson | 1924-7-5 | 4909 | San Bernardino | Bluff Lake, San Bernardino Mts | 2287 | Comment | ||
| RSA79867 | Penstemon rostriflorus | F. W. Peirson | 1920-8-22 | 2263 | San Bernardino | Foxesee Creek [Forsee Creek], San Bernardino Mts. | 2591 | Comment | ||
| RSA79868 | Penstemon rostriflorus | F. W. Peirson | 1929-7-11 | 8456 | San Bernardino | Fawnskin, Bear Valley. | 2073 | Comment | ||
| RSA79901 | Physalis crassifolia | F. W. Peirson | 1928-4-1 | 7757 | San Bernardino | 19 mi. east of Barstow on rod to Baker. | Comment | |||
| RSA79922 | Cryptantha cinerea var. abortiva | F. W. Peirson | 1930-7-1 | 8961 | San Bernardino | Along forest border, SW shore of Baldwin Lake, San Bernardino Mts | 2058 | Comment | ||
| RSA79925 | Cryptantha cinerea var. abortiva | F. W. Peirson | 1922-6-21 | 3103 | San Bernardino | East of Big Meadows, upper Santa Ana River, San Bernardino Mountains | 2165 | Comment | ||
| RSA79989 | Castilleja cinerea | F. W. Peirson | 1926-5-30 | 6744 | San Bernardino | North side of Baldwin Lake. San Bernardino Mountains. | 2043 | Comment | ||
| RSA79990 | Castilleja cinerea | F. W. Peirson | 1916-7-6 | 1155 | San Bernardino | Bear Lake. San Bernardino Mts. | Comment | |||
| RSA79992 | Castilleja cinerea | F. W. Peirson | 1930-7-1 | 8960 | San Bernardino | Baldwin Lake | 2043 | Comment | ||
| RSA79993 | Castilleja cinerea | F. W. Peirson | 1922-6-23 | 3128 | San Bernardino | At summit and along ridge to east; Sugarloaf Peak. | Comment | |||
| RSA80010 | Cryptantha micrantha var. lepida | F. W. Peirson | 1919-4-16 | 370 | San Bernardino | South slope of Cajon Pass. | 686 | Comment | ||
| RSA80011 | Cryptantha micrantha var. lepida | F. W. Peirson | 1906-8-14 | s.n. | San Bernardino | Road up Lookout Mts, San Bernardino Mts | Comment | |||
| RSA80036 | Veronica serpyllifolia var. humifusa | F. W. Peirson | 1930-7-4 | 8985 | San Bernardino | Green Creek, north slope of Sugarloaf, San Bernardino Mts. | 2378 | Comment | ||
| RSA80037 | Veronica serpyllifolia var. humifusa | F. W. Peirson | 1922-6-22 | 1094 | San Bernardino | South Fork of Santa Ana River | 2348 | Comment | ||
| RSA80041 | Veronica scutellata | F. W. Peirson | 1906-8-15 | s.n. | San Bernardino | Bluff Lake, San Bernardino Mountains. | 2287 | Comment | ||
| RSA80054 | Veronica peregrina subsp. xalapensis | F. W. Peirson | 1919-6-5 | 499 | San Bernardino | San Antonio Canyon, San Gabriel Mountains. | 1341 | Comment | ||
| RSA80055 | Veronica peregrina subsp. xalapensis | F. W. Peirson | 1906-8-15 | 2595 | San Bernardino | Lookout Mt., Bluff Lake, San Bernardino Mountains. | Comment | |||
| RSA80056 | Veronica peregrina subsp. xalapensis | F. W. Peirson | 1924-5-16 | 4607 | San Bernardino | South side of Bear Lake and 2.5 miles from the dam, San Bernardino Mtns. | 2043 | Comment | ||
| RSA80058 | Veronica peregrina subsp. xalapensis | F. W. Peirson | 1930-7-7 | 9018 | San Bernardino | Arrastre Flat | 2287 | Comment | ||
| RSA80095 | Mimulus suksdorfii | F. W. Peirson | 1922-6-22 | 4722 | San Bernardino | South Fork of Santa Ana River | 2348 | Comment | ||
| RSA80096 | Mimulus suksdorfii | F. W. Peirson | 1922-6-21 | 3104 | San Bernardino | East of Big Meadows, upper Santa Ana River, San Bernardino Mountains | 2165 | Comment | ||
| RSA80112 | Mimulus bigelovii var. bigelovii | F. W. Peirson | 1932-3-24 | 9823 | San Bernardino | Baker, along SW base of rock hill | 280 | Comment | ||
| RSA80125 | Mimulus bigelovii var. bigelovii | F. W. Peirson | 1922-5-12 | 3013 | San Bernardino | Copper City, Mojave Desert. | Comment | |||
| RSA80127 | Mimulus bigelovii var. bigelovii | F. W. Peirson | 1935-4-18 | 11491 | San Bernardino | Copper Basin Creek, Whipple Mts., | Comment | |||
| RSA80145 | Mimulus bigelovii var. cuspidatus | F. W. Peirson | 1928-4-1 | 7772 | San Bernardino | canyon floor about 4 mi. below Bradbury Well, on road to Old Confidence Mill, Death Valley Region. | Comment Read comments Dec 12 2016 |
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| RSA80151 | Mimulus breweri | F. W. Peirson | 1922-8-23 | 3278 | San Bernardino | Dry Lake, San Bernardino Mountains. | 2774 | Comment | ||
| RSA80193 | Plagiobothrys collinus var. ursinus | F. W. Peirson | 1922-6-25 | 3118 | San Bernardino | Barton Flats, San Bernardino Mountains. | 1982 | Comment | ||
| RSA80194 | Penstemon caesius | F. W. Peirson | 1922-6-23 | 4306 | San Bernardino | East of summit of Sugarloaf, San Bernardino Mtns. | 2927 | Comment | ||
| RSA80197 | Plagiobothrys scouleri var. hispidulus | F. W. Peirson | 1916-7-6 | 1021 | San Bernardino | Bear Lake. San Bernardino Mts. | Comment | |||
| RSA80203 | Plagiobothrys jonesii | F. W. Peirson | 1935-4-18 | 11495 | San Bernardino | Summit of main ridge N of Copper Basin, Whipple Mts | 686 | Comment | ||
| RSA80207 | Plagiobothrys arizonicus | F. W. Peirson | 1930-4-16 | 8727 | San Bernardino | 8 miles south of Cima, eastern San Bernardino | Comment | |||
| RSA80228 | Penstemon caesius | F. W. Peirson | 1930-7-4 | 8994 | San Bernardino | Greene Creek, north slope of Sugerloaf. | 2515 | Comment | ||
| RSA80229 | Penstemon caesius | F. W. Peirson | 1924-7-5 | 4908 | San Bernardino | Bluff Lake, San Bernardino Mountains. | 2287 | Comment | ||
| RSA80236 | Orthocarpus purpurascens var. ornatus | F. W. Peirson | 1930-5-31 | 8920 | San Bernardino | Road from Lovejoy Buttes to Adelanto, southwestern Mojave Desert. ca. 20 mi. west of Victorville. | Comment | |||
| RSA80238 | Orthocarpus purpurascens var. ornatus | F. W. Peirson | 1922-5-12 | 2972 | San Bernardino | Mojave Desert. 15 miles north of Victorville. | Comment | |||
| RSA80253 | Mohavea breviflora | F. W. Peirson | 1928-4-1 | 7769 | San Bernardino | canyon floor about 4 mi. below Bradbury Well, on road to Old Confidence Mill, Death Valley Region. | Comment Read comments Dec 12 2016 |
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| RSA80259 | Castilleja lasiorhyncha | F. W. Peirson | 1906-8-15 | 1166 | San Bernardino | Bluff Lake, San Bernardino Mountains. | 2256 | Comment | ||
| RSA80313 | Lycium andersonii | F. W. Peirson | 1935-4-18 | 11492 | San Bernardino | Copper Basin Creek, Whipple Mountains | Comment | |||
| RSA80314 | Hydrocotyle umbellata | F. W. Peirson | 1906-08 | 815 | San Bernardino | Santa Ana River near Seven Oaks. San Bernardino Mts. | Comment | |||
| RSA80320 | Hydrocotyle ranunculoides | F. W. Peirson | 1920-6-22 | 2168 | San Bernardino | Chino Creek | 152 | Comment | ||
| RSA80323 | Hydrocotyle umbellata | F. W. Peirson | 1920-5-18 | 2141 | San Bernardino | Lytle Creek, east end of San Gabriel Mts. | 1067 | Comment | ||
| RSA80326 | Hydrocotyle umbellata | F. W. Peirson | 1920-6-22 | 814 | San Bernardino | Chino Creek | 152 | Comment | ||
| RSA80330 | Orthocarpus hispidus | F. W. Peirson | 1906-8-15 | 3351 | San Bernardino | Bluff Lake, San Bernardino Mountains. | 2256 | Comment | ||
| RSA80337 | Heracleum maximum | F. W. Peirson | 1906-8-18 | 806 | San Bernardino | Upper Santa Ana River, southern California. | Comment | |||
| RSA80344 | Lycium andersonii | F. W. Peirson | 1926-4-28 | 6689 | San Bernardino | below Box Springs [Box S Springs], east of Victorville, Mojave Desert. | 1082 | Comment | ||
| RSA80355 | Perideridia parishii subsp. parishii | F. W. Peirson | 1930-7-2 | 8974 | San Bernardino | North of Baldwin Lake. | 2058 | Comment | ||
| RSA80366 | Perideridia parishii subsp. parishii | F. W. Peirson | 1924-9-2 | 5185 | San Bernardino | Fish Camp. | 2058 | Comment | ||
| RSA80376 | Solanum umbelliferum | F. W. Peirson | 1922-6-23 | 4062 | San Bernardino | Holcomb Creek. | 2591 | Comment | ||
| RSA80377 | Solanum umbelliferum | F. W. Peirson | 1924-9-1 | 5154 | San Bernardino | Johnson's Grade, east end of San Bernardino Mountains | 1982 | Comment | ||
| RSA80381 | Solanum umbelliferum | F. W. Peirson | 1929-10-11 | 8598 | San Bernardino | City Creek Rd., 2 mi west of Bear Lake Dam. | 2134 | Comment | ||
| RSA80406 | Mimulus mohavensis | F. W. Peirson | 1922-5-14 | 2982 | San Bernardino | Half between Barstow and Victorville. | Comment | |||
| RSA80455 | Mimulus moschatus var. longiflorus | F. W. Peirson | 1922-6-24 | 3123 | San Bernardino | Santa Ana River at mouth of South Fork. | 1921 | Comment | ||
| RSA80457 | Mimulus moschatus var. longiflorus | F. W. Peirson | 1930-7-4 | 8989 | San Bernardino | Greene Creek, north slope of Sugarloaf Peak | 2439 | Comment | ||
| RSA80490 | Mimulus primuloides var. pilosellus | F. W. Peirson | 1924-7-5 | 4905 | San Bernardino | Bluff Lake Meadows, San Bernardino Mountains. | 2287 | Comment | ||
| RSA80636 | Boisduvalia densiflora | F. W. Peirson | 1924-8-31 | 5120 | San Bernardino | South of Victorville. | Comment | |||
| RSA80710 | Boisduvalia densiflora | F. W. Peirson | 2082 | San Bernardino | San Bernardino Mountains. | Comment | ||||
| RSA80725 | Lythrum californicum | F. W. Peirson | 1924-8-31 | 5134 | San Bernardino | Box S Springs, southern Mojave Desert | 1082 | Comment | ||
| RSA80727 | Nicotiana obtusifolia | F. W. Peirson | 1924-5-14 | 4579 | San Bernardino | 12 miles east of Victorville. | Comment | |||
| RSA80759 | Cryptantha nevadensis var. rigida | F. W. Peirson | 1916-7-8 | 1022 | San Bernardino | Cushenbury Springs, north base of San Bernardino Mountains. | Comment | |||
| RSA80761 | Cryptantha nevadensis | F. W. Peirson | 1926-4-27 | 6680 | San Bernardino | 14 miles E of victorville | 915 | Comment | ||
| RSA80776 | Nicotiana attenuata | F. W. Peirson | 1926-9-6 | 7085 | San Bernardino | along stream bed, Deep Creek Rd., | 1372 | Comment | ||
| RSA80837 | Pedicularis semibarbata | F. W. Peirson | 1919-6-4 | 212 | San Bernardino | Icehouse Canyon Divide, San Gabriel Mountains. | 2409 | Comment | ||
| RSA81441 | Castilleja montigena | F. W. Peirson | 1931-7-9 | 9387 | San Bernardino | At head of Arctic Canyon | 2348 | Comment | ||
| RSA81442 | Castilleja montigena | F. W. Peirson | 1929-7-11 | 8452 | San Bernardino | Fawnskin, Bear Valley. | 2073 | Comment | ||
| RSA81443 | Castilleja montigena | F. W. Peirson | 1930-7-5 | 9008 | San Bernardino | Road from Bear Lake to Holcomb Valley | 2134 | Comment | ||
| RSA81444 | Castilleja montigena | F. W. Peirson | 1930-7-8 | 9040 | San Bernardino | Fish Hatchery creek [possibly Green Canyon Creek], north slope of Sugarloaf | 2591 | Comment Read comments Aug 16 2011 |
||
| RSA81485 | Castilleja angustifolia | F. W. Peirson | 1924-5-14 | 4573 | San Bernardino | Box ''S'' Springs, Cushenbury region, southern Mojave Dessert. | Comment | |||
| RSA81489 | Castilleja linariifolia | F. W. Peirson | 1916-7-8 | 1156 | San Bernardino | Box 'S' Springs near north base of San Bernardino Mtns. | 1082 | Comment | ||
| RSA82034 | Cordylanthus rigidus subsp. setiger | F. W. Peirson | 1924-9-1 | 5143 | San Bernardino | Cushenbury Grade, north slope of San Bernardino Mountains. | 1372 | Comment | ||
| RSA82035 | Cordylanthus nevinii | F. W. Peirson | 1924-9-2 | 5179 | San Bernardino | Fish Camp, San Bernardino Mountains. | 2058 | Comment | ||
| RSA82036 | Cordylanthus nevinii | F. W. Peirson | 1920-9-15 | 2248 | San Bernardino | North Fork of Lytle Creek | 1829 | Comment | ||
| RSA82054 | Cordylanthus nevinii | F. W. Peirson | 1926-9-5 | 7076 | San Bernardino | Lake Arrowhead. | 1524 | Comment | ||
| RSA82074 | Utricularia vulgaris subsp. macrorhiza | F. W. Peirson | 1924-8-31 | 5113 | San Bernardino | South of Victorville | 793 | Comment | ||
| RSA82076 | Boschniakia strobilacea | F. W. Peirson | 1920-5-29 | 523 | San Bernardino | Ontario Ridge, near Ontario Peak, San Gabriel Mtns., western San Bernardino Co. | 2591 | Comment | ||
| RSA82078B | Orobanche fasciculata | F. W. Peirson | 1909-1 | s.n. | San Bernardino | Dry Lake. | Comment | |||
| RSA82187 | Salazaria mexicana | F. W. Peirson | 1916-7-8 | 498 | San Bernardino | Cushenbury Springs, north base of San Bernardino Mountains. | Comment | |||
| RSA82193 | Trichostema parishii | F. W. Peirson | 1920-8-26 | 1044 | San Bernardino | San Bernardino Mountains: Barton Flats. road east of Foxesee Creek. | 1753 | Comment | ||
| RSA82199 | Trichostema micranthum | F. W. Peirson | 1924-9-1 | 5173 | San Bernardino | Holcomb Valley | 2256 | Comment | ||
| RSA82202 | Trichostema austromontanum subsp. austromontanum | F. W. Peirson | 1906-8-15 | 1042 | San Bernardino | Bluff Lake, San Bernardino Mountains. | 2256 | Comment | ||
| RSA82212 | Verbena gooddingii | F. W. Peirson | 1930-4-16 | 8737 | San Bernardino | 8 miles south of Cima, eastern San Bernardino | Comment | |||
| RSA82239 | Castilleja angustifolia | F. W. Peirson | 1930-4-16 | 8735 | San Bernardino | Cima Road, 10 miles south of the Las Vegasto Barstow Road | Comment | |||
| RSA82240 | Castilleja angustifolia | F. W. Peirson | 1930-7-2 | 8968 | San Bernardino | Ridge at summit of Johnson's Grade, east of Baldwin Lake. | 2104 | Comment | ||
| RSA82244 | Castilleja miniata subsp. miniata | F. W. Peirson | 1920-9-14 | 2286 | San Bernardino | Coldwater Fork of Lytle Creek, eastern San Gabriel Mountains | 2134 | Comment | ||
| RSA82250 | Castilleja miniata subsp. miniata | F. W. Peirson | 1923-8-30 | 4021 | San Bernardino | Clyde Ranch, Lone Pine Canyon. Eastern San Gabriel Mountains, west San Bernardino County | 1494 | Comment | ||
| RSA82254 | Castilleja angustifolia | F. W. Peirson | 1922-5-13 | 4152 | San Bernardino | Granite Wells, Mojave Desert. | Comment | |||
| RSA82255 | Castilleja angustifolia | F. W. Peirson | 1922-5-12 | 4493 | San Bernardino | 10 miles N of Barstow on Granite Wells Road | Comment | |||
| RSA82301 | Scutellaria siphocampyloides | F. W. Peirson | 1922-6-25 | 3117 | San Bernardino | Near Barton Flats, San Bernardino Mountains. | 1982 | Comment | ||
| RSA82385 | Scutellaria siphocampyloides | F. W. Peirson | 1930-7-3 | 8977 | San Bernardino | Along a road leading to Fish Hatchery south of Baldwin Lake, San Bernardino Mountains | 2134 | Comment | ||
| RSA82402 | Salvia mohavensis | F. W. Peirson | 1935-4-18 | 11496 | San Bernardino | Whipple Mountains: In valley in northern part of Whipple Mountains. Eastern Colorado Desert. | Comment | |||
| RSA82482 | Chilopsis linearis subsp. arcuata | F. W. Peirson | 1924-9-1 | 5238 | San Bernardino | Cushenberry Springs. Mojave Desert. | 1220 | Comment | ||
| RSA82515 | Verbena scabra | F. W. Peirson | 1924-9-2 | 5206 | San Bernardino | Santa Ana River Marshes, 2 miles south of San Bernardino. | 305 | Comment | ||
| RSA82522 | Limosella acaulis | F. W. Peirson | 1906-8-14 | 857 | San Bernardino | Bluff Lake, San Bernardino Mountains. | Comment | |||
| RSA82534 | Stachys albens | F. W. Peirson | 1924-9-2 | 5189 | San Bernardino | San Bernardino Mountains: Near creek about 1 mile below Fish Camp. | 1982 | Comment | ||
| RSA82550 | Stachys albens | F. W. Peirson | 1929-7-11 | 8461 | San Bernardino | Fawskin, Bear Valley, San Bernardino Mts. Summit of ridge back of public campgrounds. | 2043 | Comment | ||
| RSA82560 | Salvia dorrii var. pilosa | F. W. Peirson | 1930-4-16 | 8746 | San Bernardino | About 18 miles north of Goffs on the Cima Road. | Comment | |||
| RSA82994 | Salvia dorrii subsp. dorrii | F. W. Peirson | 1930-4-29 | 8758 | San Bernardino | Cactus Flats, east end of San Bernardino Mts. | 1524 | Comment | ||
| RSA82996 | Salvia pachyphylla subsp. pachyphylla | F. W. Peirson | 1920-8-22 | 1060 | San Bernardino | Ridge east of Foxesee Creek [Forsee Creek]. | 2439 | Comment | ||
| RSA82998 | Salvia pachyphylla subsp. pachyphylla | F. W. Peirson | 1930-7-5 | 9011 | San Bernardino | Road from Bear Lake to Holcomb Valley, San Bernardino Mts. | 2134 | Comment | ||
| RSA83317 | Monardella macrantha subsp. hallii | F. W. Peirson | 1931-7-6 | 9389 | San Bernardino | City Creek Road. | 1524 | Comment | ||
| RSA83320 | Monardella linoides subsp. erecta | F. W. Peirson | 1923-9-1 | 5167 | San Bernardino | between Double and Holcomb Valley, San Bernardino Mts. | 2226 | Comment | ||
| RSA83373 | Monardella exilis | F. W. Peirson | 1924-5-14 | 4551 | San Bernardino | Open desert, 17 miles east of Victorville. | Comment | |||
| RSA83387 | Monardella lanceolata var. lanceolata | F. W. Peirson | 1926-9-5 | 7077 | San Bernardino | Lake Arrowhead | 1524 | Comment | ||
| RSA83402 | Dudleya abramsii subsp. affinis | F. W. Peirson | 1941-6-24 | s.n. | San Bernardino | Plateau south of Baldwin Lake. San Bernardino Mts. | 2104 | Comment Read comments May 12 2009 |
||
| RSA83403 | Monardella cinerea | F. W. Peirson | 1920-9-12 | 182 | San Bernardino | San Gabriel Mountains: Mt. San Antonio (Baldy) | 2820 | Comment | ||
| RSA83417 | Monardella macrantha subsp. macrantha | F. W. Peirson | 1933-7-12 | 10704 | San Bernardino | San Bernardino Mountains: City Creek Road. | 1372 | Comment | ||
| RSA83451 | Mentha arvensis | F. W. Peirson | 1906-8-13 | s.n. | San Bernardino | Seven Oaks, San Bernardino Mts, southern California | Comment | |||
| RSA83925 | Ranunculus canus var. ludovicianus | F. W. Peirson | 1924-5-15 | 4560 | San Bernardino | North end of Baldwin Lake | 2037 | Comment | ||
| RSA83931 | Ranunculus californicus | F. W. Peirson | 1922-4-28 | 4305 | San Bernardino | Chino Creek, south of Chino | 152 | Comment | ||
| RSA83939 | Ranunculus uncinatus var. parviflorus | F. W. Peirson | 1916-7-4 | 1873 | San Bernardino | Green Valley, San Bernardino Mts, alt 6750ft. | 2058 | Comment | ||
| RSA83942 | Ranunculus canus var. ludovicianus | F. W. Peirson | 1916-7-6 | 1872 | San Bernardino | Big Bear Lake, San Bernardino Mts. | 2043 | Comment | ||
| RSA83987 | Saxifraga odontoloma | F. W. Peirson | 1924-7-14 | 4949 | San Bernardino | Lost Creek, San Bernardino Mountains. | 2210 | Comment | ||
| RSA83989 | Saxifraga odontoloma | F. W. Peirson | 1924-7-13 | 4948 | San Bernardino | South Fork of Mission Creek; San Bernardino Mountains | 2439 | Comment | ||
| RSA84208 | Sedum niveum | F. W. Peirson | 1920-8-26 | 2298 | San Bernardino | Creek east of Foresee Creek, north base of Mount San Bernardino. | 1677 | Comment Read comments Jan 2 2012 |
||
| RSA84211 | Sedum niveum | F. W. Peirson | 1924-7-14 | 4951 | San Bernardino | Lost Creek, San Bernardino Mountains. | Comment | |||
| RSA84223 | Dudleya abramsii subsp. affinis | F. W. Peirson | 1930-7-2 | 8972 | San Bernardino | Ridge south of summit of Johnson Grade, east end of San Bernardino Mountains. | 2134 | Comment | ||
| RSA84252 | Parnassia cirrata | F. W. Peirson | 1923-8-24 | 3980 | San Bernardino | Vivian Creek | 2439 | Comment | ||
| RSA84260 | Parnassia palustris var. californica | F. W. Peirson | 1922-8-25 | 2249 | San Bernardino | South Fork of Santa Ana River, | 2439 | Comment | ||
| RSA84263 | Azolla filiculoides | Frank W. Peirson | 1924-8-31 | 5109 | San Bernardino | South of Victorville | 792 | Comment | ||
| RSA84281 | Ranunculus alismifolius var. alismellus | F. W. Peirson | 1924-7-5 | 4900 | San Bernardino | Bluff Lake, San Bernardino Mountains. | 2287 | Comment | ||
| RSA84284 | Equisetum hyemale var. affine | F. W. Peirson | 1922-6-22 | 3112 | San Bernardino | South Fork of Santa Ana River, San Bernardino Mountains | 2438 | Comment | ||
| RSA84286 | Equisetum laevigatum | F. W. Peirson | 1922-6-24 | 3098 | San Bernardino | South Fork of the Santa Ana River | 1921 | Comment | ||
| RSA84351 | Boykinia rotundifolia | F. W. Peirson | 1924-7-16 | 4976 | San Bernardino | Potato Canyon, south slope of the San Bernardino Mts. | 1280 | Comment | ||
| RSA84360A | Ranunculus oxynotus | F. W. Peirson | 1922-8-23 | 4172 | San Bernardino | Summit of Mount San Gorgonio | 3476 | Comment | ||
| RSA84420 | Aquilegia formosa | F. W. Peirson | 1924-7-5 | 4896 | San Bernardino | Bluff Lake, San Bernardino Mountains. | 2287 | Comment | ||
| RSA84451 | Anemone tuberosa | F. W. Peirson | 1935-4-18 | 11502 | San Bernardino | Copper Basin, Whipple Mts., eastern San Bernardino Co. | 457 | Comment | ||
| RSA84460 | Clematis ligusticifolia | F. W. Peirson | 1924-7-16 | s.n. | San Bernardino | Potato Canyon, Oak Glen. | 1280 | Comment | ||
| RSA84464 | Clematis ligusticifolia var. californica | F. W. Peirson | 1924-8-31 | s.n. | San Bernardino | Box S Spring east of Victorville, Mojave Desert. | 1082 | Comment | ||
| RSA84473 | Ceratophyllum demersum | F. W. Peirson | 1924-8-31 | s.n. | San Bernardino | South of Victorville | 792 | Comment | ||
| RSA84475 | Ceratophyllum demersum | F. W. Peirson | 1928-9-5 | 5112 | San Bernardino | Victorville | Comment | |||
| RSA84479 | Actaea rubra | F. W. Peirson | 1924-7-13 | 4936 | San Bernardino | Fish Creek, San Bernardino Mountains. | 2058 | Comment | ||
| RSA84597 | Heuchera abramsii | F. W. Peirson | 1920-9-15 | 2659 | San Bernardino | Summit of peak north of Mount San Antonio | 2896 | Comment | ||
| RSA84840 | Ribes nevadense | F. W. Peirson | 1919-6-4 | 4434 | San Bernardino | Icehouse Canyon. | 1677 | Comment | ||
| RSA84844 | Ribes cereum | F. W. Peirson | 1922-6-23 | 3127 | San Bernardino | Sugarloaf Mt. San Bernardino Mts. | 2896 | Comment | ||
| RSA84849 | Ribes cereum var. cereum | F. W. Peirson | 1919-6-4 | 686 | San Bernardino | Icehouse Canyon divide. | 2287 | Comment | ||
| RSA84854 | Ribes nevadense | F. W. Peirson | 1920-9-14 | 2810 | San Bernardino | Coldwater Cienega, Lytle Creek. | 2134 | Comment | ||
| RSA84869 | Ranunculus cymbalaria var. saximontanus | F. W. Peirson | 1930-7-1 | 8963 | San Bernardino | Baldwin Lake | 2043 | Comment | ||
| RSA84940 | Ribes roezlii var. roezlii | F. W. Peirson | 1920-9-14 | 2809 | San Bernardino | Coldwater Cienega, Lytle Creek. | 2134 | Comment | ||
| RSA84975 | Ribes roezlii var. roezlii | F. W. Peirson | 1919-6-6 | 70 | San Bernardino | West Fork of San Antonio Creek, San Gabriel Mts | 2363 | Comment | ||
| RSA84998 | Athyrium filix-femina | F. W. Peirson | 1922-8-25 | 3285 | San Bernardino | South fork of Santa Ana River, San Bernardino Mountains | 2560 | Comment | ||
| RSA85020 | Polypodium hesperium | F. W. Peirson | 1923-8-22 | 3984 | San Bernardino | Vivian Creek, San Bernardino Mountains | 2195 | Comment | ||
| RSA85025 | Polystichum scopulinum | F. W. Peirson | 1924-7-5 | 4888 | San Bernardino | Bluff Lake, San Bernardino Mountains. | 2287 | Comment | ||
| RSA85052 | Woodsia scopulina | F. W. Peirson | 1922-8-24 | 3149 | San Bernardino | Rocky ledge above Dollar Lake, San Bernardino Mountains. | 2834 | Comment | ||
| RSA85069 | Agrimonia gryposepala | F. W. Peirson | 1924-7-16 | 4975 | San Bernardino | Potato Canyon, south slope of the San Bernardino Mts. | 1280 | Comment | ||
| RSA85177 | Ephedra fasciculata | F. W. Peirson | 1935-4-18 | 11498 | San Bernardino | Northern part of Whipple Mountains, road going down into Copper Basin | 427 | Comment | ||
| RSA85182 | Ephedra nevadensis | F. W. Peirson | 1930-4-29 | 8766 | San Bernardino | 1 mile west of the Mohave River on the Hesperia Road. | 854 | Comment | ||
| RSA85184 | Ephedra viridis | F. W. Peirson | 1922-5-13 | 1526 | San Bernardino | Summit of Pilot Knob, northwestern San Bernardino County | 1677 | Comment | ||
| RSA85190 | Sparganium angustifolium | F. W. Peirson | 1924-7-5 | 1537 | San Bernardino | Bluff Lake Meadows, San Bernardino Mountains. | 2287 | Comment | ||
| RSA85197 | Typha latifolia | F. W. Peirson | 1923-8-30 | 4019 | San Bernardino | Clyde Ranch, Lone Pine Canyon. Eastern San Gabriel Mountains, west San Bernardino County | 1494 | Comment | ||
| RSA85208 | Horkelia wilderae | F. W. Peirson | 1922-6-22 | 3114 | San Bernardino | South Fork of Santa Ana River; San Bernardino Mountains. | 2378 | Comment | ||
| RSA85209 | Horkelia wilderae | F. W. Peirson | 1922-6-25 | 4277 | San Bernardino | Barton Flats. | Comment | |||
| RSA85237 | Horkelia rydbergii | F. W. Peirson | 1922-8-25 | 3286 | San Bernardino | South Fork of Santa Ana River | 2378 | Comment | ||
| RSA85238 | Horkelia rydbergii | F. W. Peirson | 1929-7-11 | 8465 | San Bernardino | Fawnskin | 2043 | Comment | ||
| RSA85239 | Horkelia rydbergii | F. W. Peirson | 1916-7-6 | 1966 | San Bernardino | Region of Bear Lake | 2043 | Comment | ||
| RSA85271 | Holodiscus microphyllus | F. W. Peirson | 1922-7-21 | 5336 | San Bernardino | Devil's Backbone, San Gabriel Mountains | 2668 | Comment | ||
| RSA85313 | Mahonia dictyota | F. W. Peirson | 1923-8-30 | 11701 | San Bernardino | Colony on south side of road a short distance west of the Lone Pine Canyon divide, Swartout Valley. | 1828 | Comment | ||
| RSA85455 | Berberis dictyota | F. W. Peirson | 1920-8-26 | 647 | San Bernardino | San Bernardino Mountains: Barton Flats. road east of Foxesee Creek [Forsee Creek]. | 1753 | Comment | ||
| RSA85565 | Potamogeton pusillus | F. W. Peirson | 1924-8-31 | 5105 | San Bernardino | Pond along the railroad track south of Victorville. | Comment | |||
| RSA85567 | Zannichellia palustris | F. W. Peirson | 1922-4-28 | 2936 | San Bernardino | Chino Creek, near Chino | 152 | Comment | ||
| RSA85609 | Potentilla biennis | F. W. Peirson | 1930-7-4 | 8993 | San Bernardino | Greene Creek, north slope of Sugarloaf | 2439 | Comment | ||
| RSA85616 | Ivesia santolinoides | F. W. Peirson | 1924-9-2 | 5177 | San Bernardino | Fish Camp, Fish Creek about a mile along the boulevard from where it enters Bear Creek Basin. | 2058 | Comment | ||
| RSA85700 | Potentilla gracilis var. elmeri | F. W. Peirson | 1906-8-17 | 1974 | San Bernardino | South Fork of Santa Ana River. | 2439 | Comment | ||
| RSA85702 | Potentilla gracilis var. elmeri | F. W. Peirson | 1930-7-2 | 8975 | San Bernardino | North side of Baldwin Lake. | 2043 | Comment | ||
| RSA85714 | Potentilla wheeleri | F. W. Peirson | 1926-5-31 | 6756 | San Bernardino | Bluff Lake. | 2287 | Comment | ||
| RSA85752 | Potentilla wheeleri | F. W. Peirson | 1906-8-19 | 1979 | San Bernardino | Summit of San Gorgonio Peak | 3491 | Comment | ||
| RSA85753 | Potentilla wheeleri | F. W. Peirson | 1923-8-24 | 4180 | San Bernardino | Summit of San Gorgonio Peak. | 3491 | Comment | ||
| RSA85770 | Potentilla glandulosa subsp. nevadensis | F. W. Peirson | 1924-7-5 | 5250 | San Bernardino | Bluff Lake, San Bernardino Mts | 2287 | Comment | ||
| RSA85775 | Drymocallis glandulosa var. reflexa | F. W. Peirson | 1927-6-15 | 7347 | San Bernardino | West side of the Coldwater; Devil's Backbone, San Gabriel Mountains. | 2591 | Comment | ||
| RSA85794 | Potentilla anserina | F. W. Peirson | 1924-5-15 | 4593 | San Bernardino | Baldwin Lake. | 2043 | Comment | ||
| RSA85796 | Ivesia argyrocoma | F. W. Peirson | 1930-7-7 | 9019 | San Bernardino | Arrastre Flat | 2287 | Comment Read comments Apr 5 2010 |
||
| RSA85800 | Ivesia argyrocoma | F. W. Peirson | 1924-5-15 | 4590 | San Bernardino | At foot of hills, Baldwin Lake | 2043 | Comment | ||
| RSA85929 | Marsilea vestita | F. W. Peirson | 1933-6-25 | 10674 | San Bernardino | in a low open valley southeast of Baldwin Lake, about 2 miles east of Fish Hatchery, San Bernardino Mountains | 2133 | Comment | ||
| RSA85933 | Selaginella asprella | Frank W. Peirson | 1922-7-18 | 3201 | San Bernardino | Summit of Ontario Ridge, above Kelly s Cabin | 2546 | Comment | ||
| RSA85937 | Selaginella watsonii | Frank W. Peirson | 1922-8-23 | 4294 | San Bernardino | San Bernardino Mts: summit of Mt. San Gorgonio | 3491 | Comment | ||
| RSA85941 | Selaginella watsonii | Frank W. Peirson | 1922-6-23 | 3125 | San Bernardino | San Bernardino Mts: summit of Sugarloaf Peak | 2988 | Comment | ||
| RSA86183 | Pellaea mucronata var. mucronata | F. W. Peirson | 1922-6-21 | 3095 | San Bernardino | South fork of Santa Ana River, San Bernardino Mountains | 1936 | Comment | ||
| RSA86185 | Cryptogramma acrostichoides | F. W. Peirson | 1920-8-22 | 1519 | San Bernardino | Ridge east of Foxesee Creek [Forsee Creek], San Bernardino Mts. | 2895 | Comment | ||
| RSA86187 | Cryptogramma acrostichoides | F. W. Peirson | 1922-8-24 | 4298 | San Bernardino | Dollar Lake, San Bernardino Mountains | 2834 | Comment | ||
| RSA86188 | Cystopteris fragilis | F. W. Peirson | 1920-8-25 | 4299 | San Bernardino | South Fork of Santa Ana River | 2438 | Comment | ||
| RSA86191 | Cystopteris fragilis | F. W. Peirson | 1922-6-21 | s.n. | San Bernardino | South fork of Santa Ana River, San Bernardino Mountains | 1936 | Comment | ||
| RSA86197 | Cystopteris fragilis | F. W. Peirson | 1920-8-22 | s.n. | San Bernardino | Foxesee Creek [Forsee Creek], San Bernardino Mtns. | 2744 | Comment | ||
| RSA86290 | Ivesia saxosa | F. W. Peirson | 1924-5-15 | 4605 | San Bernardino | Cactus Flat. | 1799 | Comment | ||
| RSA86294 | Potentilla wheeleri | F. W. Peirson | 1924-5-15 | 4606 | San Bernardino | Wood on N side of East end of Bear Lake. | 2043 | Comment | ||
| RSA86295 | Potentilla wheeleri | F. W. Peirson | 1922-6-22 | 3113 | San Bernardino | South Fork of Santa Ana River | 2348 | Comment | ||
| RSA86296 | Potentilla wheeleri | F. W. Peirson | 1906-8-18 | 4279 | San Bernardino | Dry Lake. | 2774 | Comment | ||
| RSA86297 | Potentilla wheeleri | F. W. Peirson | 1906-8-15 | 1978 | San Bernardino | Bluff Lake, San Bernardino Mountains. | 2287 | Comment | ||
| RSA86298 | Potentilla wheeleri | F. W. Peirson | 1930-4-27 | 8751 | San Bernardino | Southwest end of Baldwin Lake. | 2043 | Comment | ||
| RSA86346 | Juniperus occidentalis var. australis | F. W. Peirson | 1924-5-15 | 4594 | San Bernardino | North end of Baldwin Lake, San Bernardino Mountains | 2043 | Comment | ||
| RSA86355 | Calocedrus decurrens | F. W. Peirson | 1926-9-10 | 7111 | San Bernardino | Near Arrowhead Lake | 1616 | Comment | ||
| RSA86357 | Calocedrus decurrens | F. W. Peirson | 1923-8-25 | 3999 | San Bernardino | Mill Creek, San Bernardino Mts, southern California | 1753 | Comment | ||
| RSA86365 | Pinus flexilis | F. W. Peirson | 1930-7-8 | 9037 | San Bernardino | Fish Hatchery creek [possibly Green Canyon Creek], north slope of Sugarloaf Peak, San Bernardino Mts. | 2515 | Comment Read comments Aug 15 2011 |
||
| RSA86636 | Geum macrophyllum | F. W. Peirson | 1920-8-25 | 2320 | San Bernardino | South Fork of Santa Ana River | 2439 | Comment | ||
| RSA86644 | Fallugia paradoxa | F. W. Peirson | 1927-7-10 | 7356 | San Bernardino | Mexican Well, eastern border of San Bernardino Co. | 1220 | Comment | ||
| RSA86648 | Purshia tridentata var. glandulosa | F. W. Peirson | 1930-4-16 | 8742 | San Bernardino | 7 miles south of summity of grade on Cima Road. | Comment | |||
| RSA86649 | Purshia tridentata var. glandulosa | F. W. Peirson | 1930-4-29 | 8759 | San Bernardino | Cactus Flats, east end of San Bernardino Mts. | 1524 | Comment | ||
| RSA86655 | Purshia tridentata var. glandulosa | F. W. Peirson | 1930-7-3 | 8982 | San Bernardino | About 0.5 mile below Fish Hatchery south of Baldwin Lake. | 2195 | Comment | ||
| RSA86656 | Cercocarpus ledifolius | F. W. Peirson | 1924-7-5 | 4921 | San Bernardino | Gold Mountian near Baldwin Lake. | 2134 | Comment | ||
| RSA86663 | Coleogyne ramosissima | F. W. Peirson | 1924-5-14 | 4561 | San Bernardino | Box S Springs in Cushenberry [Cushenbury] Springs Region, north base of San Bernardino Mountains. | 1082 | Comment | ||
| RSA86678 | Cercocarpus betuloides | F. W. Peirson | 1921-3-19 | 2807 | San Bernardino | San Antonio Wash east of Claremont. | 457 | Comment | ||
| RSA86680 | Cercocarpus ledifolius | F. W. Peirson | 1920-5-29 | 79 | San Bernardino | Ontario Ridge, near Ontario Peak, San Gabriel Mtns., western San Bernardino Co. | 2591 | Comment | ||
| RSA86685 | Leymus triticoides | F. W. Peirson | 1930-7-1 | 8954 | San Bernardino | Southwest shore of Baldwin Lake | Comment | |||
| RSA86692 | Vulpia microstachys | F. W. Peirson | 1922-6-24 | 3134 | San Bernardino | South bank of Santa Ana River 1/4 mile above confluence of South Fork | Comment | |||
| RSA86695 | Vulpia bromoides | F. W. Peirson | 1935-4-18 | 11505 | San Bernardino | Copper Basin, Whipple Mts., eastern San Bernardino Co. | 457 | Comment | ||
| RSA86697 | Festuca brachyphylla | F. W. Peirson | 1922-8-23 | 3266 | San Bernardino | San Bernardino Mts: summit of Mt. San Gorgonio | 3491 | Comment | ||
| RSA86712 | Leucopoa kingii | F. W. Peirson | 1930-7-8 | 9038 | San Bernardino | Fish Hatchery creek [possibly Green Canyon Creek], north slope of Sugarloaf Peak, San Bernardino Mts. | 2515 | Comment Read comments Aug 15 2011 |
||
| RSA86713 | Leucopoa kingii | F. W. Peirson | 1924-7-5 | 4922 | San Bernardino | Gold Mt. near Baldwin Lake. | 2210 | Comment | ||
| RSA86716 | Andropogon glomeratus | F. W. Peirson | 1924-9-2 | 5202 | San Bernardino | Arrowhead Hot Springs. | 579 | Comment | ||
| RSA86726 | Aristida purpurea var. nealleyi | F. W. Peirson | 1935-4-18 | 11499 | San Bernardino | Northern part of Whipple Mountains, road going down into Copper Basin | 427 | Comment | ||
| RSA86731 | Bouteloua gracilis | F. W. Peirson | 1920-8-24 | 2273 | San Bernardino | Near Santa Ana River, San Bernardino Mountains. | 1921 | Comment | ||
| RSA86762 | Deschampsia danthonioides | F. W. Peirson | 1924-5-15 | 4537 | San Bernardino | lower end of Cactus Flat east end of San Bernardino Mts. California. | 1768 | Comment | ||
| RSA86769 | Deschampsia elongata | F. W. Peirson | 1924-7-13 | 4934 | San Bernardino | big Meadows, upper Santa Ana River, San Bernardino Mountains. | 2134 | Comment | ||
| RSA86786 | Lolium perenne subsp. multiflorum | F. W. Peirson | 1920-6-22 | 2166 | San Bernardino | 2 miles south of Chino | Comment | |||
| RSA86795 | Rosa woodsii subsp. gratissima | F. W. Peirson | 1924-9-1 | 5140 | San Bernardino | Cushenbury Springs, N base of San Bernardino Mountains., Mojave Desert. | 1232 | Comment | ||
| RSA86802 | Rosa californica | F. W. Peirson | 1920-8-26 | s.n. | San Bernardino | Santa Ana River | 1372 | Comment | ||
| RSA86820 | Amelanchier utahensis | F. W. Peirson | 1920-5-29 | 2155 | San Bernardino | Icehouse Canyon, E San Gabriel Mts. | 1982 | Comment | ||
| RSA86827 | Rubus leucodermis | F. W. Peirson | 1920-9-14 | 8654 | San Bernardino | Coldwater Fork of Lytle Creek, eastern San Gabriel Mountains | 2134 | Comment | ||
| RSA86841 | Prunus virginiana var. demissa | F. W. Peirson | 1918-7-5 | 82 | San Bernardino | Along Devil's Backbone on east trail to Mt. San Antonio, San Gabriel Mountains | 2591 | Comment | ||
| RSA86846 | Prunus emarginata | F. W. Peirson | 1924-5-16 | 4615 | San Bernardino | Bear Lake Dam. | 2043 | Comment | ||
| RSA86852 | Prunus emarginata | F. W. Peirson | 1920-5-19 | 2152 | San Bernardino | Coldwater Canyon, a fork of Lytle Creek, eastern San Gabriel Mts | 1799 | Comment | ||
| RSA86858 | Prunus fasciculata | F. W. Peirson | 1922-5-12 | 1987 | San Bernardino | North slope of Cajon Pass. | 1098 | Comment | ||
| RSA86859 | Prunus fasciculata | F. W. Peirson | 1930-4-16 | 8740 | San Bernardino | 6 miles south of summit on Cima road, eastern San Bernardino County. | Comment | |||
| RSA86943 | Cercidium microphyllum | F. W. Peirson | 1935-4-19 | 11500 | San Bernardino | Whipple Mountains; Near Parker Dam site | Comment | |||
| RSA86944 | Lupinus sparsiflorus subsp. sparsiflorus | F. W. Peirson | 1921-7-4 | 2496 | San Bernardino | 2 miles north of the summit of Canyon Pass on road to Phelan | Comment | |||
| RSA86953 | Chrysolepis sempervirens | F. W. Peirson | 1921-7-19 | 15 | San Bernardino | Coldwater Fork of Lytle Creek. | 2134 | Comment | ||
| RSA86960 | Lupinus odoratus var. odoratus | F. W. Peirson | 1921-5-29 | 2426 | San Bernardino | Almost due east of Hesperia and on Mojave River. | 884 | Comment | ||
| RSA86972 | Lupinus sparsiflorus subsp. sparsiflorus | F. W. Peirson | 1923-3-23 | 7719 | San Bernardino | 1 mile east of Mentone. | Comment | |||
| RSA86988 | Senna armata | F. W. Peirson | 1927-5-7 | 7288 | San Bernardino | 4 miles west of Barstow | Comment | |||
| RSA87010 | Pickeringia montana var. tomentosa | F. W. Peirson | 1924-9-2 | 5197 | San Bernardino | City Creek Road, San Bernardino Mts. | 1524 | Comment | ||
| RSA87017 | Acacia greggii var. arizonica | F. W. Peirson | 1927-7-10 | 7355 | San Bernardino | Several miles west of Mexican Well, eastern borders of San Bernardino Co. | 1220 | Comment | ||
| RSA87033 | Lupinus shockleyi | F. W. Peirson | 1922-5-14 | 7716 | San Bernardino | 1 mile north of Barstow, San Bernardino County | Comment | |||
| RSA87034 | Lupinus shockleyi | F. W. Peirson | 1922-5-12 | 3066 | San Bernardino | 3 miles SW of Barstow on the Victorville Rd. | Comment | |||
| RSA87040 | Lupinus succulentus | F. W. Peirson | 1923-3-23 | 4222 | San Bernardino | 1 mile east of Mentone. | Comment | |||
| RSA87065 | Imperata brevifolia | F. W. Peirson | 1924-9-2 | 5201 | San Bernardino | Arrowhead Hot Springs. | 579 | Comment | ||
| RSA87114 | Galium parishii | F. W. Peirson | 1931-7-9 | 9386 | San Bernardino | Head of Arctic Creek, Holcomb Valley | 2348 | Comment | ||
| RSA87142 | Lupinus horizontalis var. platypetalus | F. W. Peirson | 1922-5-12 | 3065 | San Bernardino | 22 miles north of Barstow, | Comment | |||
| RSA87147 | Quercus kelloggii | F. W. Peirson | 1924-7-16 | 4979 | San Bernardino | Osk Glen at south base of San Bernardino Mts. | 1463 | Comment | ||
| RSA87203 | Lupinus elatus | F. W. Peirson | 1919-6-4 | 2435 | San Bernardino | Icehouse Canyon Divide, San Gabriel Mountains. | 2409 | Comment | ||
| RSA87211 | Lupinus elatus | F. W. Peirson | 1924-7-5 | 4911 | San Bernardino | Bluff Lake, San Bernardino Mountains. | 2287 | Comment | ||
| RSA87217 | Lupinus excubitus var. austromontanus | F. W. Peirson | 1917-5-14 | 522 | San Bernardino | Canyon Pass | Comment Read comments Oct 22 2014 |
|||
| RSA87310 | Lupinus concinnus subsp. orcuttii | F. W. Peirson | 1930-4-16 | 8736 | San Bernardino | 8 miles south of Cima, eastern San Bernardino | Comment | |||
| RSA87312 | Lupinus concinnus subsp. optatus | F. W. Peirson | 1921-5-29 | 2673 | San Bernardino | Mojave River | 884 | Comment | ||
| RSA87313 | Lupinus concinnus subsp. optatus | F. W. Peirson | 1919-4-16 | 371 | San Bernardino | South slope of Cajon Pass. | 686 | Comment | ||
| RSA87326 | Muhlenbergia asperifolia | F. W. Peirson | 1924-8-31 | 5119 | San Bernardino | South of Victorville. | 793 | Comment | ||
| RSA87335 | Melica stricta var. albicaulis | F. W. Peirson | 1924-5-15 | 4545 | San Bernardino | Cactus Flat | Comment | |||
| RSA87353 | Muhlenbergia filiformis | F. W. Peirson | 1922-6-23 | 4324 | San Bernardino | Sugarloaf Mountains | Comment | |||
| RSA87355 | Muhlenbergia filiformis | F. W. Peirson | 1923-8-23 | 3972 | San Bernardino | High Creek, San Bernardino Mountains. | 2774 | Comment | ||
| RSA87371 | Agrostis idahoensis | F. W. Peirson | 1918-7-7 | 1576 | San Bernardino | Kellly's Cabin, Ontario Ridge, San Gabriel Mountains. | 2500 | Comment | ||
| RSA87395 | Lupinus confertus | F. W. Peirson | 1924-7-5 | 4914 | San Bernardino | North shore of Baldwin Lake | 2037 | Comment | ||
| RSA87408 | Lupinus confertus | F. W. Peirson | 1906-8-15 | 546 | San Bernardino | Bluff Lake, San Bernardino Mountains. | 2287 | Comment | ||
| RSA87440 | Elymus trachycaulus | F. W. Peirson | 1922-7-7 | 3173 | San Bernardino | Rangers Cabin, Swarthout Valley, north side of San Gabriel Mountains/ W San Bernardino County. | 1799 | Comment | ||
| RSA87448 | Agrostis scabra | F. W. Peirson | 1923-8-23 | 3971 | San Bernardino | Deep Creek, San Bernardino Mountains. | 2774 | Comment | ||
| RSA88680 | Carex lemmonii | F. W. Peirson | 1922-6-23 | 5374 | San Bernardino | Holcomb Creek, San Bernardino Mountains. | 2439 | Comment | ||
| RSA88682 | Carex lemmonii | F. W. Peirson | 1923-8-23 | 3970 | San Bernardino | High Creek, San Bernardino Mountains. | 2774 | Comment | ||
| RSA88683 | Carex lemmonii | F. W. Peirson | 1922-6-22 | 3150 | San Bernardino | South Fork of Santa Ana River, San Bernardino Mountains. | 2378 | Comment | ||
| RSA88685 | Carex pellita | F. W. Peirson | 1924-7-13 | 4931 | San Bernardino | Big Meadows, Upper Santa Ana River, San Bernardino Mountains | 2133 | Comment | ||
| RSA88744 | Carex hassei | F. W. Peirson | 1920-5-18 | 2329 | San Bernardino | Lytle Creek, east end of San Gabriel Mts. | 1067 | Comment | ||
| RSA88752 | Carex aurea | F. W. Peirson | 1932-7-13 | 4932 | San Bernardino | Big Meadows, San Bernardino Mountains | 2134 | Comment | ||
| RSA88756 | Carex alma | F. W. Peirson | 1923-8-22 | 3974 | San Bernardino | Vivian Creek, San Bernardino Mountains | 2195 | Comment | ||
| RSA88760 | Carex douglasii | F. W. Peirson | 1922-6-21 | 3106 | San Bernardino | East of Big Meadows, upper Santa Ana River, San Bernardino Mountains | 2165 | Comment | ||
| RSA88813 | Carex fracta | F. W. Peirson | 1922-8-25 | 3279 | San Bernardino | South Fork of Santa Ana River, San Bernardino Mountains. | 2348 | Comment | ||
| RSA88814 | Carex fracta | F. W. Peirson | 1924-7-5 | 4904 | San Bernardino | Bluff Lake, San Bernardino Mountains. | 2286 | Comment | ||
| RSA88837 | Carex phaeocephala | F. W. Peirson | 1920-9-15 | 2290 | San Bernardino | Summit of peak north of Mount San Antonio | 2896 | Comment | ||
| RSA88847 | Carex subfusca | F. W. Peirson | 1922-6-24 | 5373 | San Bernardino | South Fork of the Santa Ana River | 1921 | Comment | ||
| RSA88848 | Carex subfusca | F. W. Peirson | 1922-6-25 | 4268 | San Bernardino | Near Barton Flats, San Bernardino Mountains. | 1982 | Comment | ||
| RSA88859 | Carex praegracilis | F. W. Peirson | 1922-7-6 | 3176 | San Bernardino | Rangers Cabin, Swartout Valley, north side of San Gabriel Mountains. | 1799 | Comment | ||
| RSA90179 | Astragalus bicristatus | F. W. Peirson | 1924-5-16 | 4588 | San Bernardino | North side of Bear Lake, San Bernardino Mts | 2072 | Comment | ||
| RSA90183 | Astragalus bicristatus | F. W. Peirson | 1916-7-6 | 589 | San Bernardino | Bear Lake region [Big Bear Lake], San Bernardino Mountains. | Comment | |||
| RSA90184 | Astragalus bicristatus | F. W. Peirson | 1930-7-5 | 9007 | San Bernardino | Road from Bear Lake to Holcomb Valley | 2133 | Comment | ||
| RSA90216 | Astragalus albens | F. W. Peirson | 1924-5-15 | 4570 | San Bernardino | lower end of Cactus Flat east end of San Bernardino Mts. California. | 1768 | Comment | ||
| RSA90217 | Astragalus bernardinus | F. W. Peirson | 1930-5-31 | 8924 | San Bernardino | Summit of grade above Warrens Well. Little San Bern Mtns. | Comment | |||
| RSA90234 | Astragalus lentiginosus var. sierrae | F. W. Peirson | 1924-5-15 | 4558 | San Bernardino | North end of Baldwin Lake | 2037 | Comment | ||
| RSA90247 | Astragalus lentiginosus var. sierrae | F. W. Peirson | 1942-5-10 | s.n. | San Bernardino | East side of Baldwin Lake, San Bernardino Mts. | 2057 | Comment | ||
| RSA90248 | Astragalus lentiginosus var. sierrae | F. W. Peirson | 1916-7-6 | 2346 | San Bernardino | Big Bear Lake, San Bernardino Mts. | 2042 | Comment | ||
| RSA90249 | Astragalus lentiginosus var. sierrae | F. W. Peirson | 1920-8-24 | 2347 | San Bernardino | Big Meadows, at head of Santa Ana River | 2133 | Comment | ||
| RSA90251 | Astragalus lentiginosus var. sierrae | F. W. Peirson | 1930-7-4 | 8991 | San Bernardino | Greene Creek, north slope of Sugarloaf Peak | 2438 | Comment | ||
| RSA90359 | Lotus davidsonii | F. W. Peirson | 1924-7-5 | 4898 | San Bernardino | Bluff Lake, San Bernardino Mountains. | 2287 | Comment | ||
| RSA90435 | Oxytropis oreophila | F. W. Peirson | 1906-8-19 | 2008 | San Bernardino | Summit of San Gorgonio Peak | 3491 | Comment | ||
| RSA90436 | Oxytropis oreophila var. oreophila | F. W. Peirson | 1923-8-24 | s.n. | San Bernardino | Summit of Mt. San Gorgonio, San Bernardino Mountains. | 3476 | Comment | ||
| RSA90652 | Chrysothamnus viscidiflorus subsp. viscidiflorus | F. W. Peirson | 1929-8-23 | 8584 | San Bernardino | Southwest slopes of Baldwin Lake, San Bernardino Mts. | 2073 | Comment | ||
| RSA90695 | Gutierrezia sarothrae | F. W. Peirson | 1929-8-23 | 8583 | San Bernardino | Southwest slopes of Baldwin Lake, San Bernardino Mts. | 2073 | Comment | ||
| RSA90719 | Astragalus leucolobus | F. W. Peirson | 1930-7-7 | 9031 | San Bernardino | Along south edge of Holcomb Valley | 2287 | Comment | ||
| RSA90733 | Astragalus acutirostris | F. W. Peirson | 1930-5-31 | 8925 | San Bernardino | Summit of grade above Warrens Well. Little San Bern Mtns. | Comment | |||
| RSA90757 | Astragalus purshii var. lectulus | F. W. Peirson | 1924-5-15 | 4567 | San Bernardino | Summit above Doble, San Bernardino Mountains | 2100 | Comment | ||
| RSA90758 | Astragalus purshii var. lectulus | F. W. Peirson | 1930-4-28 | 8753 | San Bernardino | Sugarloaf Road south of Baldwin Lake | 2133 | Comment | ||
| RSA90907 | Chrysothamnus nauseosus subsp. bernardinus | F. W. Peirson | 1924-9-2 | 5176 | San Bernardino | Fish Camp. | 2058 | Comment | ||
| RSA90926 | Erigeron compositus | F. W. Peirson | 1922-8-23 | 3283 | San Bernardino | Summit of Mount San Gorgonio | 3476 | Comment | ||
| RSA90952 | Erigeron divergens | F. W. Peirson | 1930-7-1 | 8959 | San Bernardino | Baldwin Lake | 2043 | Comment | ||
| RSA90963 | Erigeron divergens | F. W. Peirson | 1924-5-15 | 4572 | San Bernardino | At foot of hills, Baldwin Lake | 2042 | Comment | ||
| RSA90978 | Erigeron breweri var. covillei | F. W. Peirson | 1930-7-7 | 9020 | San Bernardino | Arrastre Flat | 2287 | Comment | ||
| RSA91026 | Erigeron aphanactis var. congestus | F. W. Peirson | 1924-7-13 | 4943 | San Bernardino | Divide between Fish and Mission Creeks | 2530 | Comment | ||
| RSA91218 | Krameria erecta | F. W. Peirson | 1924-5-14 | 4574 | San Bernardino | Box S Springs in Cushenberry [Cushenbury] Springs Region, north base of San Bernardino Mountains. | 1082 | Comment | ||
| RSA91261 | Lupinus latifolius subsp. parishii | F. W. Peirson | 1924-7-13 | 4938 | San Bernardino | Fish Creek, San Bernardino Mountains. | 2058 | Comment | ||
| RSA91287 | Lessingia glandulifera var. glandulifera | F. W. Peirson | 1929-10-5 | 8595 | San Bernardino | Along stream south of Peter Pan Woodland Club, Bear Valley | 2134 | Comment | ||
| RSA91336 | Rupertia rigida | F. W. Peirson | 1930-7-3 | 8978 | San Bernardino | Road to Fish Hatchery, E of Bear Valley | 2165 | Comment | ||
| RSA91338 | Amorpha californica | F. W. Peirson | 1929-7-11 | 8454 | San Bernardino | Fawnskin, Bear Valley. | 2072 | Comment | ||
| RSA91401 | Trifolium longipes subsp. atrorubens | F. W. Peirson | 1926-5-31 | 6753 | San Bernardino | Bluff Lake. | 2287 | Comment | ||
| RSA91520 | Poa secunda | F. W. Peirson | 1932-5-28 | 9963 | San Bernardino | southwest shores of Baldwin Lake, San Bernardino Mountains. | 2058 | Comment | ||
| RSA91639 | Carex echinata subsp. echinata | F. W. Peirson | 1924-7-5 | 4899 | San Bernardino | Bluff Lake Meadows, San Bernardino Mountains. | 2287 | Comment | ||
| RSA91701 | Gnaphalium palustre | F. W. Peirson | 1924-7-5 | 4912 | San Bernardino | Bluff Lake Meadows, San Bernardino Mountains. | 2287 | Comment | ||
| RSA91719 | Gnaphalium thermale | F. W. Peirson | 1926-9-5 | 7081 | San Bernardino | Lake Arrowhead | 1524 | Comment | ||
| RSA91722 | Gnaphalium chilense | F. W. Peirson | 1922-8-26 | 5252 | San Bernardino | Cienega Seca Creek | 2210 | Comment | ||
| RSA91963 | Elymus elymoides subsp. californicus | F. W. Peirson | 1922-7-21 | s.n | San Bernardino | North slope of Mt San Antonio, San Gabriel Mountains | 2957 | Comment | ||
| RSA91969 | Elymus multisetus | F. W. Peirson | 1930-7-2 | 8971 | San Bernardino | Ridge south of summit of Johnson Grade, east end of San Bernardino Mountains. | 2134 | Comment | ||
| RSA91977 | Pleuraphis rigida | F. W. Peirson | 1924-5-14 | 54544 | San Bernardino | Box S Springs in Cushenberry [Cushenbury] Springs Region, north base of San Bernardino Mountains. | 1082 | Comment | ||
| RSA91996 | Polypogon monspeliensis | F. W. Peirson | 1577 | San Bernardino | Trail to Dry Lake | Comment | ||||
| RSA92040 | Bromus anomalus | F. W. Peirson | 1930-7-1 | 8956 | San Bernardino | Angeles Drive about Baldwin Lake, San Bernardino Mountains. | Comment | |||
| RSA92098 | Carex senta | F. W. Peirson | 1922-6-24 | 3151 | San Bernardino | South Fork of the Santa Ana River | 1921 | Comment | ||
| RSA92145 | Schoenus nigricans | F. W. Peirson | 1924-9-2 | 5199 | San Bernardino | Arrowhead Hot Springs. | 579 | Comment | ||
| RSA92148 | Fimbristylis thermalis | F. W. Peirson | 1924-9-2 | 5200 | San Bernardino | Arrowhead Hot Springs. | 579 | Comment Read comments Dec 24 2010 |
||
| RSA92150 | Eleocharis quinqueflora | F. W. Peirson | 1922-6-22 | 3120 | San Bernardino | South Fork of Santa Ana River, San Bernardino Mountains. | 2378 | Comment | ||
| RSA92311 | Poa secunda | F. W. Peirson | 1924-5-14 | 4540 | San Bernardino | Box S Springs in Cushenberry [Cushenbury] Springs Region, north base of San Bernardino Mountains. | 1082 | Comment | ||
| RSA92438 | Poa atropurpurea | F. W. Peirson | 1932-5-28 | 9973 | San Bernardino | southwest shores of Baldwin Lake, San Bernardino Mountains. | 2058 | Comment | ||
| RSA92679 | Eriophyllum lanatum var. obovatum | F. W. Peirson | 1924-7-5 | 4906 | San Bernardino | Bluff Lake, San Bernardino Mountains. | 2287 | Comment | ||
| RSA92680 | Eriophyllum lanatum var. obovatum | F. W. Peirson | 1930-7-7 | 9030 | San Bernardino | Along south edge of Holcomb Valley | 2287 | Comment | ||
| RSA92682 | Eriophyllum lanatum var. obovatum | F. W. Peirson | 1924-9-2 | 5181 | San Bernardino | Fish Camp. | 2058 | Comment | ||
| RSA92683 | Eriophyllum lanatum var. obovatum | F. W. Peirson | 1916-7-8 | 1382 | San Bernardino | Cushenberry Grade on north base of San Bernardino Mountains | Comment | |||
| RSA92712 | Salix lemmonii | F. W. Peirson | 1920-8-22 | 721 | San Bernardino | Ridge east of Foxesee Creek [Forsee Creek], San Bernardino Mts | 2896 | Comment | ||
| RSA92841 | Madia elegans subsp. wheeleri | F. W. Peirson | 1930-7-7 | 9026 | San Bernardino | Arrastre Flat | 2287 | Comment | ||
| RSA92904 | Madia elegans | F. W. Peirson | 1926-9-5 | 7071 | San Bernardino | Lake Arrowhead | 1524 | Comment | ||
| RSA93092 | Erigeron parishii | F. W. Peirson | 1930-4-29 | 8761 | San Bernardino | Grade in Cushionbury canyon 1 mile above Cushenbury Springs, north base of San Bernardino Mountain | 1372 | Comment | ||
| RSA93093 | Erigeron parishii | F. W. Peirson | 1926-5-29 | 6736 | San Bernardino | Cushenbury Grade about 0.5 mile above Cushenbury Springs. North slope of San Bernardino Mts. | Comment | |||
| RSA93097 | Corethrogyne filaginifolia | F. W. Peirson | 1924-9-2 | 5180 | San Bernardino | Fish Camp. | 2058 | Comment | ||
| RSA93099 | Corethrogyne filaginifolia var. sessilis | F. W. Peirson | 1926-9-5 | 7072 | San Bernardino | Lake Arrowhead | 1524 | Comment | ||
| RSA93109 | Erigeron breweri var. jacinteus | F. W. Peirson | 1922-7-21 | 3204 | San Bernardino | Summit of Little Baldy (the peak due east of Mt. San Antonio) | 2910 | Comment | ||
| RSA93150 | Aster occidentalis | F. W. Peirson | 1924-9-2 | 5184 | San Bernardino | Fish Camp. | 2058 | Comment | ||
| RSA93179 | Machaeranthera canescens | F. W. Peirson | 1920-8-22 | 2588 | San Bernardino | Ridge east of Foxesee Creek [Forsee Creek], San Bernardino Mts | 2895 | Comment | ||
| RSA93220 | Pyrrocoma uniflora var. gossypina | F. W. Peirson | 1924-9-1 | 5169 | San Bernardino | Arrastre Flats | 2271 | Comment | ||
| RSA93388A | Helenium bigelovii | F. W. Peirson | 1923-8-22 | 3985 | San Bernardino | Vivian Creek, San Bernardino Mountains | 2195 | Comment | ||
| RSA93389 | Dudleya saxosa subsp. aloides | F. W. Peirson | 1930-5-31 | 8926 | San Bernardino | Summit of grade above Warrens Well. Little San Bern Mtns. | Comment | |||
| RSA93621 | Antennaria rosea | F. W. Peirson | 1922-6-22 | 4231 | San Bernardino | South Fork of Santa Ana River | 2348 | Comment | ||
| RSA93638 | Antennaria dimorpha | F. W. Peirson | 1920-5-19 | 2143 | San Bernardino | San Gabriel Mts., Devils Backbone Ridge. | 2134 | Comment | ||
| RSA93670 | Antennaria media | F. W. Peirson | 1922-8-23 | 1310 | San Bernardino | Summit of San Gorgonia Peak. | 3396 | Comment | ||
| RSA93742 | Aster frondosus | F. W. Peirson | 1924-5-15 | 4595 | San Bernardino | North end of Baldwin Lake | 2037 | Comment | ||
| RSA93825 | Aster lanceolatus subsp. hesperius | F. W. Peirson | 1923-8-30 | 4020 | San Bernardino | Clyde Ranch, Lone Pine Canyon. Eastern San Gabriel Mountains, west San Bernardino County | 1494 | Comment | ||
| RSA94126 | Hulsea vestita subsp. parryi | F. W. Peirson | 1920-8-22 | 1407 | San Bernardino | Ridge east of Foxesee Creek [Forsee Creek], San Bernardino Mts | 2895 | Comment | ||
| RSA94149 | Hulsea vestita subsp. parryi | F. W. Peirson | 1924-7-13 | 4944 | San Bernardino | Divide between Fish and Mission Creeks | 2530 | Comment | ||
| RSA94150 | Hulsea vestita subsp. pygmaea | F. W. Peirson | 1922-8-23 | 1406 | San Bernardino | Summit of Mount San Gorgonio | 3476 | Comment | ||
| RSA94151 | Hulsea vestita subsp. parryi | F. W. Peirson | 1922-6-23 | 4048 | San Bernardino | San Bernardino Mts: summit of Sugarloaf Peak | 2988 | Comment | ||
| RSA94381 | Dyssodia cooperi | F. W. Peirson | 1930-5-31 | 8928 | San Bernardino | Summit of grade above Warrens Well. Little San Bern Mtns. | Comment | |||
| RSA94527 | Raillardella argentea | F. W. Peirson | 1922-8-23 | 1413 | San Bernardino | Summit of Mount San Gorgonio | 3476 | Comment | ||
| RSA94634 | Syntrichopappus lemmonii | F. W. Peirson | 1917-5-13 | 1378 | San Bernardino | Summit of Cajon Pass | 1098 | Comment | ||
| RSA94673 | Senecio douglasii var. monoensis | F. W. Peirson | 1924-5-14 | 4580 | San Bernardino | Box S Springs in Cushenberry [Cushenbury] Springs Region, north base of San Bernardino Mountains. | 1082 | Comment | ||
| RSA94682 | Packera ionophylla | F. W. Peirson | 1922-6-22 | 4250 | San Bernardino | South Fork of Santa Ana River; San Bernardino Mountains. | 2378 | Comment | ||
| RSA94689 | Senecio bernardinus | F. W. Peirson | 1922-6-23 | 3145 | San Bernardino | Sugarloaf Mountain | 2438 | Comment | ||
| RSA94690 | Senecio bernardinus | F. W. Peirson | 1924-7-6 | 4924 | San Bernardino | North shore of Bear Lake (Nr its West end) | 2042 | Comment | ||
| RSA94702 | Packera ionophylla | F. W. Peirson | s.n. | San Bernardino | Trail to Dry Lake | Comment | ||||
| RSA94706 | Packera ionophylla | F. W. Peirson | 1924-7-14 | 4961 | San Bernardino | north slope of the ridge above Lost Creek, San Bernardino Mts. | 2743 | Comment | ||
| RSA94720 | Senecio fremontii | F. W. Peirson | 1923-8-24 | 3994 | San Bernardino | Down southeast slope of summit of Mount San Gorgonio Peak | 3476 | Comment | ||
| RSA94739 | Senecio bernardinus | F. W. Peirson | 1933-6-24 | 10671 | San Bernardino | South side of Baldwin Lake | 2057 | Comment | ||
| RSA95127 | Agoseris grandiflora var. grandiflora | F. W. Peirson | 1923-8-30 | 4018 | San Bernardino | Clyde Ranch, Lone Pine Canyon. Eastern San Gabriel Mountains, west San Bernardino County | 1494 | Comment | ||
| RSA95192 | Sidalcea hickmanii subsp. parishii | F. W. Peirson | 1920-8-26 | 2251 | San Bernardino | Road crossing over Foresee Creek. | 1677 | Comment Read comments Jan 2 2012 |
||
| RSA95193 | Sidalcea hickmanii subsp. parishii | F. W. Peirson | 1922-6-24 | 4697 | San Bernardino | Foxesee Creek. | 1829 | Comment | ||
| RSA95248 | Taraxacum californicum | F. W. Peirson | 1926-5-31 | 6757 | San Bernardino | Bluff Lake | 2287 | Comment | ||
| RSA95249 | Taraxacum californicum | F. W. Peirson | 1922-6-22 | 2261 | San Bernardino | South Fork of Santa Ana River | 2348 | Comment | ||
| RSA95250 | Taraxacum californicum | F. W. Peirson | 1922-6-21 | 4315 | San Bernardino | Head of Santa Ana river, just above Big Meadows | 2165 | Comment | ||
| RSA95262 | Sidalcea hickmanii subsp. parishii | F. W. Peirson | 1924-7-16 | 4971 | San Bernardino | Barton Flats Road. | 1524 | Comment | ||
| RSA95272 | Sidalcea pedata | F. W. Peirson | 1939-7-11 | 8463 | San Bernardino | Fawnskin, Bear Valley. | 2043 | Comment | ||
| RSA95273 | Sidalcea pedata | F. W. Peirson | 1924-5-15 | 4559 | San Bernardino | North end of Baldwin Lake, San Bernardino Mts. | Comment | |||
| RSA95367 | Sphaeralcea ambigua subsp. ambigua | F. W. Peirson | 1924-5-14 | 4612 | San Bernardino | Box S Springs in Cushenberry [Cushenbury] Springs Region, north base of San Bernardino Mountains. | 1082 | Comment | ||
| RSA95384 | Sidalcea malviflora subsp. dolosa | F. W. Peirson | 1922-6-23 | 2056 | San Bernardino | Upper Holcomb Creek | 2363 | Comment | ||
| RSA97340 | Lomatium nevadense var. parishii | F. W. Peirson | 1922-6-23 | 3126 | San Bernardino | At summit and along ridge to east; Sugarloaf Peak. | Comment | |||
| RSA97423 | Oreonana vestita | F. W. Peirson | 1922-7-21 | 4054 | San Bernardino | Summit of Little Baldy (the peak due east of Mt. San Antonio) | 2910 | Comment | ||
| RSA99350 | Symphoricarpos rotundifolius var. parishii | F. W. Peirson | 1924-7-5 | 1200 | San Bernardino | Bluff Lake, San Bernardino Mts | 2286 | Comment | ||
| SBBG28963 | Lupinus concinnus | F. W. Peirson | 1921-5-29 | San Bernardino | summit of Cajon Pass | 1219 | Comment | |||
| SBBG28976 | Asclepias eriocarpa | F. W. Peirson | -- | 884 | San Bernardino | San Bernardino Mtns | Comment | |||
| SBBG51908 | Acer negundo | F. W. Peirson | 1924-7-19 | San Bernardino | Oak Glen, San Bernadino Mtns | 1463 | Comment | |||
| SBBG54476 | Malaxis monophyllos subsp. brachypoda | F. W. Peirson | 1920-8-25 | San Bernardino | meadows, S Fork, Santa Ana River | 2438 | Comment | |||
| SBBG98214 | Saltugilia splendens subsp. splendens | F. W. Peirson | 1924-7-16 | 4972 | San Bernardino | Barton Flats | Comment | |||
| SBBG98220 | Loeseliastrum schottii | F. W. Peirson | 1927-5-7 | 7275 | San Bernardino | 1 mi E of Kramer | Comment | |||
| SD45394 | Gilia ochroleuca subsp. exilis | F. W. Peirson | Aug 1906 | 920 | San Bernardino | Icehouse Canyon Divide; San Gbriel Mountains. | 2408 | Comment | ||
| SD87524 | Langloisia setosissima subsp. punctata | Frank W. Peirson | 1927-5-7 | 7287 | San Bernardino | 4.0 miles west of Barstow. | Comment | |||
| SD87552 | Eriastrum eremicum subsp. eremicum | Frank W. Peirson | 1926-4-27 | 6684 | San Bernardino | 18 miles east of Victorville, Box S. Ranch vicinity. | Comment | |||
| SD87564 | Eriogonum gracillimum | Frank W. Peirson | 1932-11-13 | San Bernardino | Deadman Point, at foot of rock pile | 914 | Comment | |||
| SD87570 | Gilia diegensis | F. W Peirson | 1919-4-16 | 4133 | San Bernardino | Cajon Pass. | 686 | Comment | ||
| SD87572 | Aliciella leptomeria | F. W. Peirson | 1924-5-14 | 4577 | San Bernardino | 21 miles east of Victorville. | Comment | |||
| SD87590 | Ericameria cuneata var. spathulata | Frank W. Peirson | 1929-11-10 | 8607 | San Bernardino | Cactus Flat. | 1830 | Comment | ||
| SD87625 | Lesquerella tenella | Frank W. Peirson | 1932-3-23 | 9812 | San Bernardino | 35 miles south of Needles on the Blythe Road. | Comment | |||
| SD87652 | Chrysothamnus viscidiflorus var. viscidiflorus | Frank W. Peirson | 1929-9-16 | San Bernardino | Fisheries road south of Baldwin Lake, Bear Valley. | 2105 | Comment | |||
| SD87654 | Ericameria parryi var. aspera | F. W. Peirson | 1929-9-16 | 8592 | San Bernardino | Slopes south of Baldwin Lake. | Comment | |||
| SD87696 | Monolepis spathulata | F. W. Peirson | 1922-6-21 | 3148 | San Bernardino | Santa Ana River; San Bernardino Mountains. | 2165 | Comment | ||
| SD87697 | Carex douglasii | F. W. Peirson | 1922-6-21 | San Bernardino | San Bernardino Mountains; east of Big Meadow; dry ground under pines. | 2164 | Comment Read comments Jul 11 2010 |
|||
| SD87712 | Layia glandulosa | F. W. Peirson | 1924-5-15 | 4591 | San Bernardino | Baldwin Lake, San Bernardino Mountains | 2040 | Comment | ||
| SD87714 | Madia elegans | F. W. Peirson | 1929-9-11 | 8588 | San Bernardino | Bear Valley Boulevard near Peter Pan Woodland Club, San Bernardino Mountains. | 2075 | Comment | ||
| SD87726 | Collinsia parryi | Frank W. Peirson | 1920-5-28 | San Bernardino | San Antonio Canyon | 1524 | Comment | |||
| SD87728 | Adenophyllum cooperi | Frank W. Peirson | 1927-5-8 | 7292 | San Bernardino | Halfway from Barstow to Victorville. | Comment | |||
| SD87731 | Erigeron breweri var. covillei | F. W. Peirson | 1922-7-7 | San Bernardino | Phelan, Mohave Desert | Comment | ||||
| SD87732 | Erigeron divergens | F. W. Peirson | 1924-5-15 | 4572 | San Bernardino | Baldwin Lake; flat land back from lake. | 2040 | Comment | ||
| SD87760 | Linanthus killipii | F. W. Peirson | 1926-5-30 | 6748 | San Bernardino | Low hills, north side of Baldwin Lake | 2042 | Comment | ||
| SD87773 | Horkelia wilderae | F. W. Peirson | 1922-6-22 | 3114 | San Bernardino | South Fork of Santa Ana, Barton Flats Trail | 2316 | Comment | ||
| SD87774 | Equisetum arvense | F. W. Peirson | 1922-6-22 | San Bernardino | San Bernardino Mountains, south fork of Santa Ana [River] | 2440 | Comment | |||
| SD87776 | Ivesia argyrocoma var. argyrocoma | F. W. Peirson | 1924-5-15 | 4590 | San Bernardino | San Bernardino Mountains, Baldwin Lake, level land at foot of slope | 2042 | Comment Read comments Mar 11 2009 |
||
| SD87787 | Sidalcea hickmanii subsp. parishii | F. W. Peirson | 1920-8-26 | 2251 | San Bernardino | Road crossing Toxesee Creek. | 1676 | Comment Read comments Jan 2 2012 |
||
| SD87792 | Dudleya abramsii subsp. affinis | Frank W. Peirson | 1930-7-2 | 8972 | San Bernardino | Ridge south from summit of Johnson's Grade, San Bernardino Mountains. | 2135 | Comment | ||
| SD87820 | Tiquilia nuttallii | F. W. Peirson | Unknown | San Bernardino | Mojave River | 869 | Comment | |||
| SD87847 | Boechera retrofracta | F. W. Peirson | 1922-6-22 | 3135 | San Bernardino | San Bernardino Mountains, South Fork of Santa Ana River | 2345 | Comment | ||
| SD87863 | Phacelia austromontana | Frank W. Peirson | 1930-7-4 | 8986 | San Bernardino | San Bernardino Mts., north slope of Sugarloaf, Green Creek | Comment | |||
| SD87886 | Potentilla wheeleri | F. W. Peirson | 1922-6-21 | San Bernardino | Santa Ana River | 2164 | Comment | |||
| SEINET1782829 | Lesquerella bernardina | F. W. Peirson | 1924-5-16 | 4600 | San Bernardino | E end of Bear Lake, San Bernardino Mts. | 2043 | Comment | ||
| SEINET3142543 | Mirabilis laevis var. villosa | F. W. Peirson | 1924-5-15 | 4611 | San Bernardino | Cushenberry Grade, San Bernardino Mts. | 1311 | Comment | ||
SEINET5764661  |
Haplopappus acradenius subsp. eremophilus | Frank W. Peirson | 1924-8-31 | 5128 | San Bernardino | Mojave Desert: Box S Ranch [ranch site = town of Lucerne Valley, Hwy 18 jct Hwy 247] | 1082 | Comment | ||
SEINET675828  |
Artemisia vulgaris | Frank W. Peirson | 1932-11-12 | 10486 | San Bernardino | Forest border with A. tridentata. Southwest of Baldwin Lake, San Bernadino Mountains | 2058 | Comment | ||
| UC1099772 | Juncus parryi | Frank W. Peirson | 1922-8-23 | 3267 | San Bernardino | San Gorgonio | 2987 | Comment | ||
| UC1106912 | Luzula comosa var. laxa | Frank W. Peirson | 1922-6-24 | San Bernardino | Santa Ana River San Bernardino Mts. | 1920 | Comment | |||
| UC1106913 | Luzula comosa var. laxa | Frank W. Peirson | 1922-8-22 | San Bernardino | South Fork Santa Ana River, San Bernardino Mts. | 2560 | Comment | |||
| UC1199874 | Dodecatheon hendersonii | Peirson | 1924-5-16 | 4599 | San Bernardino | 2 1/2 mi below dam (s side of Bear Lake); San Bernardino Mts., s side Bear Lake | Comment | |||
| UC218115 | Hulsea vestita | F. W. Peirson | 1922-6-24 | San Bernardino | South Fork Santa Ana River; San Bernardino Mts. | 1920 | Comment | |||
| UC218116 | Veronica serpyllifolia subsp. humifusa | F. W. Peirson | 1922-6-22 | San Bernardino | South Fork of Santa Ana R.; San Bernardino Mountains, South Fork of Santa Ana | 2346 | Comment Read comments Sep 18 2009 |
|||
| UC218117 | Sagina saginoides | F. W. Peirson | 1922-6-22 | San Bernardino | S. Fork Santa Ana R. San Bernardino Mts., S. Fork Santa Ana R. | 2377 | Comment | |||
| UC35485 | Amorpha californica var. californica | F. W. Peirson | 1918-6-19 | 85 | San Bernardino | Cajon Pass | Comment | |||
| UC483077 | Salix lasiolepis | Frank W. Peirson | 1919-6-6 | 717 | San Bernardino | North Fork San Antonio Creek | 2286 | Comment | ||
| UC483085 | Salix lasiolepis | Frank W. Peirson | 1932-5-30 | 9972 | San Bernardino | Green Valley San Bernardino Mts. (along stream) | 2103 | Comment | ||
| UC483086 | Salix lasiandra var. lasiandra | Frank W. Peirson | 1932-5-30 | 9971 | San Bernardino | Green Valley San Bernardino Mts., Green Valley | 2103 | Comment | ||
| UC483087 | Salix scouleriana | Frank W. Peirson | 1932-5-30 | 9970 | San Bernardino | Green Valley San Bernardino Mts., Green Valley | 2103 | Comment | ||
| UC501434 | Apocynum androsaemifolium | Frank W. Peirson | 1930-7-8 | 9034 | San Bernardino | n. slope Sugarloaf; San Bernardino Mts., Fish Hatchery Creek | 2362 | Comment Read comments Aug 16 2011 |
||
| UC501436 | Swertia neglecta | Frank W. Peirson | 1930-7-7 | 9015 | San Bernardino | Arrastre Flat, toward the e end of flat San Bernardino Mts. | 2255 | Comment | ||
| UC501439 | Centaurium venustum | Frank W. Peirson | 1922-6-20 | 4468 | San Bernardino | se of San Bernardino; Santa Ana River | Comment | |||
| UC501454 | Scutellaria siphocampyloides | Frank W. Peirson | 1924-7-6 | 4925 | San Bernardino | City Creek Road; San Bernardino Mountains, City Creek Road | 1828 | Comment | ||
| UC501466 | Gilia filiformis | Frank W. Peirson | 1932-3-24 | 9825 | San Bernardino | Baker | 280 | Comment | ||
| UC501469 | Monoptilon bellidiforme | Frank W. Peirson | 1926-4-27 | 6681 | San Bernardino | 18 mi e Victorville (vicinity of Box S Ranch) | Comment | |||
| UC501484 | Geranium richardsonii | Frank W. Peirson | 1923-8-23 | 3982 | San Bernardino | High Creek San Bernardino Mts. | 2773 | Comment | ||
| UC501497 | Ericameria nauseosa var. hololeuca | Frank W. Peirson | 1932-11-12 | 10488 | San Bernardino | sw of Baldwin Lake; San Bernardino Mountains | 2133 | Comment | ||
| UC501501 | Stillingia paucidentata | Frank W. Peirson | 1922-5-12 | 2996 | San Bernardino | between Oro Grande and bridge over Mohave River | Comment | |||
| UC501520 | Nitrophila occidentalis | Frank W. Peirson | 1920-6-22 | 1836 | San Bernardino | Chino Creek | Comment | |||
| UC501525 | Zigadenus brevibracteatus | Frank W. Peirson | 1922-5-12 | 3012 | San Bernardino | 3 mi s Copper City; Mohave Desert | Comment | |||
| UC501529 | Calyptridium parryi var. parryi | Frank W. Peirson | 1922-6-24 | 3124 | San Bernardino | South Fork Santa Ana River; San Bernardino Mountains, South Fork Santa Ana River | 1920 | Comment | ||
| UC501530 | Lewisia nevadensis | Frank W. Peirson | 1926-5-31 | 6754 | San Bernardino | Bluff Lake San Bernardino Mts., Bluff Lake | 2286 | Comment | ||
| UC501550 | Hesperochiron californicus | Frank W. Peirson | 1932-5-28 | 9964 | San Bernardino | flats along s.w. shore Baldwin Lake; San Bernardino Mts., Baldwin Lake | 2042 | Comment | ||
| UC501580 | Astragalus bicristatus | Frank W. Peirson | 1932-5-28 | San Bernardino | sw side Baldwin Lake San Bernardino Mts., Baldwin Lake | 2057 | Comment | |||
| UC501596 | Lesquerella tenella | Frank W. Peirson | 1932-3-23 | 9812 | San Bernardino | on the Blythe Road 35 mi s Needles; s of Needles | Comment | |||
| UC501597 | Erysimum capitatum var. capitatum | Frank W. Peirson | 1932-3-25 | 9837 | San Bernardino | on Victorville Rd 8 mi from Barstow | 670 | Comment | ||
| UC501629 | Gutierrezia sarothrae | Frank W. Peirson | 1929-8-23 | 8583 | San Bernardino | sw shore Baldwin Lake; San Bernardino Mts., Baldwin Lake | 2072 | Comment | ||
| UC501631 | Lessingia glandulifera var. glandulifera | Frank W. Peirson | 1921-5-29 | 1262 | San Bernardino | opposite Hesperia; Mohave River | 868 | Comment | ||
| UC501637 | Nama demissa var. demissa | Frank W. Peirson | 1928-4-1 | 7766 | San Bernardino | 33 mi n Baker (Death Valley Road, Amargosa Wash); n of Baker, Death Valley Road, Amargosa Wash | Comment | |||
| UC511749 | Leymus triticoides | Frank W. Peirson | 1933-7-13 | San Bernardino | unused roadways near Baldwin Lake; San Bernardino Mts., Bear Valley | 2057 | Comment | |||
| UC511751 | Potentilla anserina subsp. anserina | Frank W. Peirson | 1933-6-24 | 4593 | San Bernardino | shores Baldwin Lake San Bernardino Mts., shores Baldwin Lake | 2057 | Comment | ||
| UC511768 | Packera bernardina | Frank W. Peirson | 1933-6-24 | 10671 | San Bernardino | Baldwin Lake, s shore San Bernardino Mts. | 2057 | Comment | ||
| UC511770 | Marsilea vestita subsp. vestita | Frank W. Peirson | 1933-6-25 | 10674 | San Bernardino | 2 mi se Baldwin Lake; San Bernardino Mts., Bear Valley | 2133 | Comment | ||
| UC511771 | Erigeron aphanactis var. congestus | Frank W. Peirson | 1933-6-24 | 10676 | San Bernardino | along ridge s from the summit Johnson Grade; San Bernardino Mts., Johnson Grade | 2133 | Comment | ||
| UC511772 | Lotus argyraeus | Frank W. Peirson | 1933-6-24 | 10677 | San Bernardino | ridge s summit of the Johnson Grade; San Bernardino Mts. | 2133 | Comment | ||
| UC511773 | Monardella macrantha | Frank W. Peirson | 1933-7-12 | 10704 | San Bernardino | City Creek Road San Bernardino Mts. | 1371 | Comment | ||
| UC511778 | Thelypodium stenopetalum | Frank W. Peirson | 1933-6-24 | 6741 | San Bernardino | Baldwin Lake shoress San Bernardino Mts. | 2057 | Comment | ||
| UC511779 | Potentilla biennis | Frank W. Peirson | 1933-6-25 | 10672 | San Bernardino | 2 mi se Baldwin Lake (Bear Valley); San Bernardino Mts., Bear Valley | 2133 | Comment | ||
| UC511789 | Samolus parviflorus | Frank W. Peirson | 1920-6-22 | 2794 | San Bernardino | along Chino Creek, sw corner of San Bernardino County Chino Creek | 152 | Comment | ||
| UC511861 | Descurainia pinnata | Frank W. Peirson | 1933-6-25 | 10673 | San Bernardino | 2 mi se Baldwin Lake; San Bernardino Mts., Bear Valley | 2133 | Comment | ||
| UC511919 | Delphinium parishii | Frank W. Peirson | 1933-6-24 | 10675 | San Bernardino | e shore Baldwin Lake; San Bernardino Mts. | 2057 | Comment | ||
| UC511921 | Dudleya abramsii subsp. affinis | Frank W. Peirson | 1933-6-24 | 8972 | San Bernardino | ridge s summit of Johnson Grade; San Bernardino Mtns | Comment | |||
| UC530092 | Agrostis idahoensis | Frank W. Peirson | 1918-7-7 | 1576 | San Bernardino | Kellys Cabin San Gabriel Mts., =San Antonio Mts., Ontario Ridge (Ontario Ridge, San Gabriel Mts.) | 2499 | Comment | ||
| UC555341 | Psorothamnus arborescens var. arborescens | Frank W. Peirson | 1927-5-7 | 7285 | San Bernardino | 10 mi w Barstow (open desert); w of Barstow | Comment | |||
| UC566628 | Packera ionophylla | Frank W. Peirson | 1924-7-14 | 4961 | San Bernardino | Lost Creek San Bernardino Mts. | 2743 | Comment | ||
| UC566800 | Lomatium nevadense var. parishii | Frank W. Peirson | 1920-5-19 | 2679 | San Bernardino | Coldwater branch of Lytle Creek | 1676 | Comment | ||
| UC570589 | Logfia filaginoides | Frank W. Peirson | 1935-4-18 | 11480 | San Bernardino | a mi or 2 up the canyon Copper Creek Basin; Whipple Mountains, Copper Creek Basin | Comment | |||
| UC570590 | Gilia scopulorum | Frank W. Peirson | 1935-4-18 | 11484 | San Bernardino | Copper Basin Creek Whipple Mountains, Copper Basin Creek | Comment | |||
| UC570591 | Linanthus jonesii | Frank W. Peirson | 1935-4-18 | 11483 | San Bernardino | Copper Basin Creek Whipple Mountains | Comment | |||
| UC570592 | Parietaria pensylvanica | Frank W. Peirson | 1935-4-18 | 11481 | San Bernardino | Copper Basin Creek; Whippel MOuntains | Comment | |||
| UC570602 | Salvia mohavensis | Frank W. Peirson | 1935-4-18 | 11496 | San Bernardino | not far from road going down into Copper Basin (n part of Whipple Mountains Range); Whipple Mountains | Comment | |||
| UC570603 | Adenophyllum porophylloides | Frank W. Peirson | 1935-4-18 | 11488 | San Bernardino | Copper Basin Creek; Whipple Mountains | Comment | |||
| UC570604 | Anemone tuberosa | Frank W. Peirson | 1935-4-18 | 11502 | San Bernardino | n. part of Range near rd. going down into Copper Basin; Whipple Mts. | 457 | Comment | ||
| UC570605 | Astragalus nuttallianus var. imperfectus | Frank W. Peirson | 1935-4-18 | 11494 | San Bernardino | n part of Whipple Mountains near the road going down into Copper Basin; Whipple Mountains, n part of range, <nr> Copper Basin | 457 | Comment | ||
| UC570608 | Cercidium microphyllum | Frank W. Peirson | 1935-4-18 | 11500 | San Bernardino | near site of Parker Dam; Whipple Mountains | Comment | |||
| UC573115 | Cryptantha pterocarya | Frank W. Peirson | 1921-5-29 | 5812 | San Bernardino | Mohave River | 883 | Comment | ||
| UC672174 | Erigeron divergens | Frank W. Peirson | 1920-8-23 | 1286 | San Bernardino | at South Fork Santa Ana River; San Bernardino Mts., Santa Ana River | 1920 | Comment | ||
| UC672177 | Erigeron parishii | Frank W. Peirson | 1926-5-29 | 6736 | San Bernardino | about 1/2 mi above Cushenberry Springs; Cushenberry Grade | Comment | |||
| UC672181 | Erigeron aphanactis var. congestus | Frank W. Peirson | 1923-8-24 | 1284 | San Bernardino | Summit San Gorgonio Peak | 3490 | Comment | ||
| UC672263 | Isocoma acradenia var. acradenia | Frank W. Peirson | 1924-8-31 | 5126 | San Bernardino | 1 mi w Box S Ranch; Mohave Desert | 914 | Comment | ||
| UC672285 | Arida carnosa | Frank W. Peirson | 1924-8-31 | 5131 | San Bernardino | Box S Spring | 1082 | Comment | ||
| UC672287 | Symphyotrichum defoliatum | Frank W. Peirson | 1924-8-31 | 5121 | San Bernardino | s of town, near pond Victorville | 792 | Comment | ||
| UC672290 | Symphyotrichum defoliatum | Frank W. Peirson | 1924-9-1 | 5165 | San Bernardino | east end of lake Baldwin Lake | 2042 | Comment | ||
| UC672291 | Symphyotrichum spathulatum | Frank W. Peirson | 1926-9-5 | 7073 | San Bernardino | Arrowhead Lake, on dam San Bernardino Mts., Arrowhead Lake | 1524 | Comment | ||
| UC673634 | Antennaria rosea | Frank W. Peirson | 1922-6-22 | 4231 | San Bernardino | South Fork Santa Ana River San Bernardino Mts., South Fork Santa Ana River | 2346 | Comment | ||
| UC813705 | Ephedra nevadensis | F. W. Peirson and I. M. Johnston | 1922-5-14 | 6510 | San Bernardino | Summit of Pilot Knob Mohave Desert, Summit of Pilot Knob | Comment | |||
| UC852706 | Sagina saginoides | F. W. Peirson | 1922-6-22 | San Bernardino | San Bernardino Mts., S. Fork Santa Ana R. | 2377 | Comment | |||
| UC862446 | Astragalus albens | Frank W. Peirson | 1924-5-15 | 4570 | San Bernardino | Cactus Flat; San Bernardino Mts., Cactus Flat | 1767 | Comment | ||
| UC908581 | Eriastrum eremicum subsp. eremicum | Frank W. Peirson | 1927-7-10 | 7352 | San Bernardino | Near Mexican Well. | Comment | |||
| UC909048 | Langloisia setosissima subsp. punctata | Frank W. Peirson | 1922-5-14 | 3009 | San Bernardino | 1/2 way Barstow to Victorville (Devil's Kitchen); Devil's Kitchen | Comment | |||
| UC909102 | Loeseliastrum schottii | Frank W. Peirson | 1927-5-7 | 7275 | San Bernardino | 1 mi. e. Kramer | Comment | |||
| UC909143 | Langloisia setosissima subsp. punctata | Frank W. Peirson | 1927-5-7 | 7287 | San Bernardino | 4 mi. w. Barstow | Comment | |||
| UC912240 | Artemisia ludoviciana subsp. ludoviciana | Frank W. Peirson | 1924-8-31 | San Bernardino | s of Victorville | 792 | Comment | |||
| UC971765 | Gilia ochroleuca subsp. vivida | F. W. Peirson | August, 1906 | 920 | San Bernardino | Icehouse Canyon Divide San Gabriel Mountains, Icehouse Canyon Divide | 2407 | Comment | ||
| UCD61548 | Elymus elymoides | F. W. Peirson | 1923-8-24 | 3979 | San Bernardino | San Bernardino Mountains. | 3499 | Comment | ||
| UCD91362 | Polypogon monspeliensis | F. W. Peirson | 1920-8-24 | 2274 | San Bernardino | East of Big Meadow, head of Santa Ana River, San Bernardino Mountains. Southern California. | 2164 | Comment | ||
| UCR136622 | Collinsia parviflora | F. W. Peirson | 1922-6-24 | 3141 | San Bernardino | San Bernardino Mtns., Santa Ana River at the South Fork | 1921 | Comment | ||
| UCR136638 | Castilleja linariifolia | F. W. Peirson | 1924-8-31 | 1156 | San Bernardino | Mojave Desert, Box 'S' Spring, near Cushenbury Spring | 1082 | Comment | ||
| UCR136639 | Sidalcea hickmanii subsp. parishii | F. W. Peirson | 1924-7-16 | 4971 | San Bernardino | Transverse Range; San Bernardino Mtns., Barton Flats Road [probably in vicinity of Seven Oaks] | 1616 | Comment | ||
| UCR136646 | Penstemon caesius | F. W. Peirson | 1924-7-5 | 4908 | San Bernardino | San Bernardino Mtns., Bluff Lake | 2287 | Comment | ||
| UCR136648 | Nicotiana obtusifolia | F. W. Peirson | 1924-5-14 | 4579 | San Bernardino | Mojave Desert, 12 miles east of Victorville, Deadman Point | 915 | Comment | ||
| UCR142706 | Hesperocnide tenella | F. W. Peirson | 1924-5-14 | 4547 | San Bernardino | Mojave Desert, 12 miles east of Victorville, Deadman Point | 915 | Comment | ||
| UCR143432 | Tropidocarpum gracile | F. W. Peirson | 1922-5-13 | 2964 | San Bernardino | Mojave Desert, Granite Wells | 1220 | Comment | ||
| UCR158046 | Helianthus nuttallii subsp. nuttallii | F. W. Peirson | 1923-8-30 | 4022 | San Bernardino | Transverse Ranges: Eastern San Gabriel Mountains, Clyde Ranch, Lone Pine Canyon | 1494 | Comment | ||
| UCR168316 | Stanleya pinnata | F. W. Peirson | 1924-8-31 | 5125 | San Bernardino | Southern Mojave Desert, 2 miles west of Box S Ranch [ranch site = town of Lucerne Valley, Hwy 18 jct Hwy 247] | 915 | Comment | ||
| UCR168455 | Ephedra viridis | F. W. Peirson | 1922-5-13 | 1526 | San Bernardino | Mojave Desert, summit of Pilot Knob | 1655 | Comment | ||
| UCR17970 | Myosurus apetalus | F. W. Peirson | 1926-5-31 | 6758 | San Bernardino | San Bernardino Mtns., Bluff Lake | 2287 | Comment | ||
| UCR19610 | Eriastrum sapphirinum subsp. ambiguum | F. W. Peirson | 1926-5-29 | 6735 | San Bernardino | Mojave Desert, east of Victorville, open desert at Deadman Point | 922 | Comment | ||
| UCR19612 | Langloisia schottii | F. W. Peirson | 1927-5-7 | 7275 | San Bernardino | Western Mojave Desert, 1 mi. east of Kramer | 757 | Comment | ||
| UCR66534 | Agrimonia gryposepala | F. W. Peirson | 1924-7-16 | 4975 | San Bernardino | San Bernardino Mtns, Potato Canyon | 1280 | Comment | ||
| UCR70730 | Solidago confinis | F. W. Peirson | 1924-8-31 | 5133 | San Bernardino | Mojave Desert, Box 'S' Spring, near Cushenbury Spring | 1082 | Comment | ||
| UCR70773 | Artemisia biennis | F. W. Peirson | 1924-9-1 | 5160 | San Bernardino | San Bernardino Mtns., Baldwin Lake, flat at end of lake. | Comment | |||
| UCR70850 | Gilia splendens subsp. splendens | F. W. Peirson | 1924-7-16 | 4972 | San Bernardino | Transverse Range; San Bernardino Mtns., Barton Flats Road [probably in vicinity of Seven Oaks] | 1616 | Comment | ||
| UCSB25242 | Carex subfusca | Peirson, Frank | 1922-7-18 | San Bernardino | Kelly's Cabin, Ontario Peak; San Gabriel Mts. | 2499 | Comment | |||
| CAS-BOT-BC241715 | Eriogonum brachyanthum | Frank W. Peirson | 1922-7-7 | 4743 | San Bernardino | San Gabriel Mts., Sheep Cr. | Comment | |||
| CAS-BOT-BC242826 | Eriogonum davidsonii | Frank W. Peirson | 1920-9-12 | 2278 | San Bernardino | Mt. Baldy (San Bernardino), south trail; San Gabriel Mts. | 2438 | Comment | ||
| CAS-BOT-BC269800 | Eriogonum nudum var. pauciflorum | Frank W. Peirson | 1920-9-16 | 20 | San Bernardino | North Fork San Antonio, San Gabriel Mts. | Comment | |||
| CAS-BOT-BC298918 | Ericameria nauseosa var. bernardina | Frank W. Peirson | 1923-8-25 | 3998 | San Bernardino | Mill Creek | Comment | |||
| CAS-BOT-BC312635 | Hymenopappus filifolius var. lugens | Frank W. Peirson | 1922-6-22 | s.n. | San Bernardino | San Bernardino Mts. Ridge W. of S. F. Santa Ana Riv. | Comment | |||
| CAS-BOT-BC321557 | Layia glandulosa | Frank W. Peirson | 1930-4-16 | 8728 | San Bernardino | Cima Road, 8 miles S of the Las Vegas Road | Comment | |||
| CAS-BOT-BC338963 | Lasthenia californica | F. W. Peirson | 1919-4-16 | 389 | San Bernardino | Foot of mountains near Lytle Creek | 533 | Comment | ||
| CAS-BOT-BC349731 | Monoptilon bellidiforme | F. W. Peirson | 1926-4-27 | 6681 | San Bernardino | Near Box S Ranch, north base of San Bernardino Mts. | Comment | |||
| CAS-BOT-BC349732 | Monoptilon bellidiforme | F. W. Peirson | 1928-3-31 | 7755 | San Bernardino | Near bridge over Mohave River north of Victorville | Comment | |||
| CAS-BOT-BC357353 | Pseudognaphalium microcephalum | Frank W. Peirson | 1920-9-16 | 5251 | San Bernardino | North Fork San Antonio Creek, San Gabriel Mts. | 1981 | Comment | ||
| CAS-BOT-BC376677 | Syntrichopappus fremontii | F. W. Peirson | 1922-5-12 | 4243 | San Bernardino | Desert 22 miles north of Barstow | Comment | |||
| CAS-BOT-BC389499 | Silene menziesii | F. W. Peirson | 1922-6-24 | s.n. | San Bernardino | San Bernardino Mts. Santa Ana River, 1/4 mi. above South Fork | 1950 | Comment | ||
| CAS-BOT-BC391195 | Stellaria longipes subsp. longipes | Frank W. Peirson | 1922-6-24 | 4292 | San Bernardino | Ca. 1/4 mi. above South Fork Santa Ana River; San Bernardino Mts. | 1935 | Comment | ||
| CAS-BOT-BC392272 | Myosurus apetalus | Frank W. Peirson | 1924-5-15 | 4557 | San Bernardino | Summit above Doble | 2100 | Comment | ||
| CAS-BOT-BC410982 | Nemacladus sigmoideus | F. W. Peirson | 1926-5-30 | 6747 | San Bernardino | Hills north side of Baldwin Lake | Comment | |||
| CAS-BOT-BC418728 | Eschscholzia glyptosperma | Frank W. Peirson | 1922-5-14 | 3003 | San Bernardino | 5 mi. north of Barstow, Mojave Desert | Comment | |||
| CAS-BOT-BC439727 | Claytonia parviflora subsp. viridis | Frank W. Peirson | 1922-6-24 | 604 | San Bernardino | San Bernardino Mts. Santa Ana Riv. | 1920 | Comment | ||
| CAS-BOT-BC514241 | Maianthemum stellatum | Frank W. Peirson | 1920-9-14 | 1682 | San Bernardino | Coldwater Cienega, Lytle Creek, San Gabriel Mts. | 2133 | Comment | ||
| CAS-BOT-BC515050 | Eriastrum sapphirinum subsp. sapphirinum | F. W. Peirson | 1929-8-23 | 8585 | San Bernardino | SW slopes of Baldwin Lake, near lot, Bear Valley | 2072 | Comment | ||
| CAS-BOT-BC515126 | Eriastrum sapphirinum subsp. sapphirinum | F. W. Peirson | 1924-7-15 | 4965 | San Bernardino | San Bernardino Mts., Coon Creek Divide | 2438 | Comment | ||
| CAS-BOT-BC535009 | Drymocallis glandulosa var. reflexa | Frank W. Peirson | 1922-7-18 | 4181 | San Bernardino | San Gabriel Mts., Icehouse Canyon | 2316 | Comment | ||
| JEPS11097 | Penstemon rostriflorus | Frank W. Peirson | 1922-7-19 | 3206 | San Bernardino | divide between Cucamonga and Ontario Peaks; San Gabriel Mountains, btw Cucamonga and Ontario Peaks | 2407 | Comment | ||
| JEPS1409 | Nama pusilla | Frank W. Peirson | 1932-5-10 | 9954 | San Bernardino | 15 mi n Baker (Mohave Desert, beds of former pools); Mohave Desert, n of Baker | Comment | |||
| JEPS53071 | Arabis pycnocarpa var. pycnocarpa | Frank W. Peirson | 1922-6-24 | San Bernardino | 1/4 mi. e. of S. Fork Santa Ana R. San Bernardino Mts., S. Fork Santa Ana R. | 1950 | Comment | |||
| JEPS57074 | Eriogonum baileyi var. baileyi | Frank W. Peirson | 1928-9-6 | San Bernardino | near Warrens Well; Mohave Desert | Comment | ||||
| JEPS57632 | Chorizanthe corrugata | Frank W. Peirson | 1928-4-1 | 7762 | San Bernardino | 28 mi n Baker (border Amargosa Wash); Border Amargosa WAsh | Comment | |||
| JEPS58358 | Linanthus dianthiflorus | Frank W. Peirson | 1919-4-16 | 365 | San Bernardino | near Lytle Creek; San Gabriel Mts. | 533 | Comment | ||
| JEPS66588 | Chimaphila umbellata | Frank W. Peirson | 1924-7-14 | 4964 | San Bernardino | slope e. S. Fork Santa Ana R. (San Bernardino Mts.); San Bernardino Mts. | 2743 | Comment | ||
| PASA1077 | Lotus crassifolius | Frank W. Peirson | 1930-7-5 | San Bernardino | Northwest of Baldwin Lake, San Bernardino Mts. | Comment | ||||
| PASA1123 | Scutellaria angustifolia | Frank W. Peirson | 1940-7-3 | San Bernardino | Road to Fish Hatchery south of Baldwin Lake, San Bernardino Mts. | 2133 | Comment | |||
| PASA1340 | Phacelia heterophylla | Frank W. Peirson | 1930-7-5 | San Bernardino | Quarry northwest of Baldwin Lake, San Bernardino Mts. | 2072 | Comment | |||
| PASA146 | Orthocarpus cinereus | Frank W. Peirson | 1931-7-1 | San Bernardino | Southwest shore of Baldwin Lake, San Bernardino Mts. | 2042 | Comment | |||
| PASA1632 | Cleomella obtusifolia | Frank W. Peirson | 1924-5-14 | San Bernardino | 1 mile west of the Box S Ranch, Mohave Desert | Comment | ||||
| PASA1633 | Cleomella oocarpa | Frank W. Peirson | 1924-9-1 | San Bernardino | Cushenbury Grade | 1127 | Comment | |||
| PASA1664 | Lupinus horizontalis var. platypetalus | Frank W. Peirson | 1922-5-12 | San Bernardino | 22 miles north of Barstow on the Granite Wells Road | Comment | ||||
| PASA1673 | Lupinus shockleyi | Frank W. Peirson | 1922-5-14 | 7716 | San Bernardino | 1 mile north of Barstow | Comment | |||
| PASA1728 | Erigeron foliosus | Frank W. Peirson | 1922-8-27 | San Bernardino | Barton Flats Road at the Foxsee crossing, San Bernardino Mts. | 1600 | Comment | |||
| PASA174 | Pedicularis semibarbata | Frank W. Peirson | 1929-5-31 | San Bernardino | Summit of San Antonio-Coldwater Divide, San Gabriel Range | 2438 | Comment | |||
| PASA1799 | Aster ascendens var. delectabilis | Frank W. Peirson | 1922-8-27 | San Bernardino | Barton Flats, San Bernardino Mts. | 1950 | Comment | |||
| PASA1803 | Aster chilensis | Frank W. Peirson | 1928-9-5 | San Bernardino | Victorville | 792 | Comment | |||
| PASA1879 | Lythrum californicum | Frank W. Peirson | 1930-7-10 | San Bernardino | Box S Spring, foot of Cushionbury Grade | 1081 | Comment | |||
| PASA1927 | Carum gairdneri | Frank W. Peirson | 1930-7-2 | San Bernardino | Northwest of Baldwin Lake, San Bernardino Mts. | 2072 | Comment | |||
| PASA1971 | Lappula occidentalis | Frank W. Peirson | 1922-6-24 | San Bernardino | Santa Ana River at South Fork, San Bernardino Mts. | 1904 | Comment | |||
| PASA2061 | Streptanthus major | Frank W. Peirson | 1930-7-8 | San Bernardino | Fish Hatcher Creek, Bear Valley, San Bernardino Mts. | 2438 | Comment | |||
| PASA2209 | Eriophyllum confertiflorum var. discoideum | Frank W. Peirson | 1921-7-19 | San Bernardino | San Antonio Canyon | 1981 | Comment | |||
| PASA234 | Trifolium grantianum | Frank W. Peirson | 1924-7-14 | San Bernardino | Lost Creek, Santa Ana tributary, San Bernardino Mts. | 2209 | Comment | |||
| PASA235 | Trifolium involucratum | Frank W. Peirson | 1930-7-7 | San Bernardino | Holcomb Valley, San Bernardino Mts. | 2255 | Comment | |||
| PASA2664 | Arabis perennans | Frank W. Peirson | 1930-7-8 | 9035 | San Bernardino | Fish Hatchery Creek, San Bernadino Mtns. Bear Valley | 2438 | Comment | ||
| PASA2731 | Astragalus layneae | Frank W. Peirson | 1922-4-14 | 3011 | San Bernardino | 10 miles north of Barstow | Comment | |||
| PASA2746 | Astragalus preussii | Frank W. Peirson | 1930-4-15 | 8726 | San Bernardino | Road from Baker to Las Vegas at junction of Cima Road | Comment | |||
| PASA29 | Plantago purshii | Frank W. Peirson | 1930-7-2 | San Bernardino | Johnson's Grave SB Mts. | Comment | ||||
| PASA315 | Malacothrix sonchoides | Frank W. Peirson | 1926-4-27 | San Bernardino | Vicinity of Box S. Ranch | Comment | ||||
| PASA397 | Camelina sativa | Frank W. Peirson | 1922-7-7 | San Bernardino | Swartout Valley | 1798 | Comment | |||
| PASA614 | Scirpus rostellatus | Frank W. Peirson | 1922-7-7 | San Bernardino | Swartout Valley. Marsh near Ranger's Cabin | Comment | ||||
| PASA855 | Penstemon bridgesii | Frank W. Peirson | 1920-8-22 | San Bernardino | Foxsee Creek, San Bernardino Mts. | 2590 | Comment | |||
| PASA886 | Apocynum androsaemifolium subsp. pumilum | Frank W. Peirson | 1930-6-8 | San Bernardino | Fish Hatchery Creek, Bear Valley, San Bernardino Mts. | 2362 | Comment | |||
| PASA913 | Agoseris heterophylla | Frank W. Peirson | 1922-7-7 | San Bernardino | Swartout Valley | 1843 | Comment | |||
| PASA952 | Senecio multicapitatus | Frank W. Peirson | 1920-8-22 | San Bernardino | Foxsee Creek (Santa Ana River tributary) San Bernardino Mts. | 2590 | Comment | |||
| PASA990 | Castilleja pinetorum | Frank W. Peirson | 1930-7-8 | San Bernardino | Fish Hatchery Creek, North slope Sugarloaf, San Bernardino Mts. | 2590 | Comment | |||
| POM12783 | Erigeron breweri var. porphyreticus | F. W. Peirson | 1922-6-22 | 3100 | San Bernardino | Ridge W of S Fork of Santa Ana | 2256 | Comment | ||
| POM146279 | Apocynum X floribundum | F. W. Peirson | 1924-7-12 | 787 | San Bernardino | Glen Martin , damp ground. | 1799 | Comment | ||
| POM14742 | Phacelia rotundifolia | F. W. Peirson | 1922-5-13 | 2979 | San Bernardino | Summit of Pilot Knob, Mohave Desert. | 1524 | Comment | ||
| POM162890 | Apocynum androsaemifolium subsp. pumilum | F. W. Peirson | 1929-10-26 | 8603 | San Bernardino | Above Fish Camp, City Cr. Road. | 2073 | Comment | ||
| POM193453 | Lessingia glandulifera var. glandulifera | F. W. Peirson | 1929-9-16 | s.n. | San Bernardino | Road to Fisheries S of Baldwin Lake, San Bernardino Mts. | 2104 | Comment | ||
| POM193454 | Aster ascendens | F. W. Peirson | 1929-9-11 | 8589 . | San Bernardino | Peter Pan Golf Course, Bear Valley, Bear Valley, San Bernardino Mts | 2058 | Comment | ||
| POM193455 | Madia elegans | F. W. Peirson | 1929-9-11 | 8588 | San Bernardino | Bear Valley Boulevard near Peter Pan Woodland Club, Bear Valley, San Bernardino Mts. | 2073 | Comment | ||
| POM212924 | Cheilanthes parryi | F. W. Peirson | 1935-4-18 | 11501 | San Bernardino | Whipple Mountains, Northern Part of Range | Comment | |||
| POM311029 | Gilia ochroleuca subsp. exilis | F. W. Peirson | 1906-08 | 920 | San Bernardino | Icehouse Canyon Divide. | 2409 | Comment | ||
| POM357402 | Erigeron aphanactis var. congestus | F. W. Peirson | 1924-7-13 | s.n. | San Bernardino | San Bernardino Mts. Fish & Mission Creeks Divide | 2500 | Comment | ||
| POM361121 | Hymenopappus filifolius var. lugens | F. W. Peirson | 1922-6-22 | s.n. | San Bernardino | Ridge W of S Fork of Santa Ana. | Comment | |||
| POM86635 | Geum macrophyllum | F. W. Peirson | 1922-6-24 | 5335 | San Bernardino | S Fork of Santa Ana River, San Bernardino Mts | 2058 | Comment | ||
| POM90171 | Astragalus lentiginosus var. borreganus | F. W. Peirson | 1928-4-1 | 7759 | San Bernardino | Silver Lake, about 8 miles north of Baker, e. Mojave Desert. | Comment | |||
| POM93098 | Corethrogyne filaginifolia | F. W. Peirson | 1920-8-26 | 1265 | San Bernardino | Santa Ana River | 1372 | Comment | ||
| POM9688 | Chorizanthe xanti | F. W. Peirson | 1921-5-30 | 2419 | San Bernardino | Lone Pine Canyon, e. end of San Gabriel Mts. | 1067 | Comment | ||
| POM9772 | Eriogonum maculatum | F. W. Peirson | 1921-12-18 | s.n. | San Bernardino | 24 mi. north of Barstow. | Comment | |||
| POM9911 | Limosella acaulis | F. W. Peirson | 1906-8-14 | 857 | San Bernardino | Bluff Lake, San Bernardino Mountains. | 2439 | Comment | ||
| POM9912 | Cystopteris fragilis | F. W. Peirson | 1920-8-22 | s.n. | San Bernardino | Foxesee Creek [Forsee Creek], San Bernardino Mtns. | 2744 | Comment | ||
| POM9929 | Cryptogramma acrostichoides | F. W. Peirson | 1921-8-22 | 1519 | San Bernardino | San Bernardino Mountains: Foxesee Creek [Forsee Creek]. | 2895 | Comment | ||
| POM9940 | Allium monticola | F. W. Peirson | 1919-6-4 | 3 | San Bernardino | Icehouse Canyon | 1982 | Comment | ||
| RSA0001926 | Boechera peirsonii | F. W. Peirson | 1922-8-24 | 3269 | San Bernardino | Above Dollar Lake, San Bernardino Mountains. | 2773 | Comment | ||
| RSA0001969 | Lesquerella kingii subsp. bernardina | F. W. Peirson | 1924-5-16 | 4600 | San Bernardino | In woods on north side of east end of Bear Lake. San Bernardino Mtns. | 2043 | Comment | ||
| RSA0010907 | Castilleja applegatei subsp. martinii | F. W. Peirson | 1930-7-5 | 9008 | San Bernardino | Road from Bear Lake to Holcomb Valley, San Bernardino Mts. | 2134 | Comment | ||
| RSA0011092 | Turricula parryi | F. W. Peirson | 1930-7-7 | 9012 | San Bernardino | San Bernardino Mountains; on road from Doble to Arrastre Flat | 2210 | Comment | ||
| RSA0013676 | Senecio spartioides | F. W. Peirson | 1922-8-23 | 4249 | San Bernardino | North slope of San Gorgonio Peak, San Bernardino Mts. | 2927 | Comment | ||
| RSA0013677 | Senecio spartioides | F. W. Peirson | 1920-8-22 | 2265 | San Bernardino | Foxesee Creek [Forsee Creek], San Bernardino Mts. | 2591 | Comment | ||
| RSA0016144 | Monardella australis subsp. australis | F. W. Peirson | 1924-7-6 | 4926 | San Bernardino | Rim Road, San Bernardino Mtns. | 1829 | Comment | ||
| RSA0016146 | Monardella australis subsp. australis | F. W. Peirson | 1926-9-5 | 7078 | San Bernardino | Arrowhead Lake, San Bernardino Mts. | 1524 | Comment | ||
| RSA0016432 | Helianthus nuttallii subsp. nuttallii | F. W. Peirson | 1924-9-1 | 5139 | San Bernardino | Cushenbury Springs, N base of San Bernardino Mountains., Mojave Desert. | 1232 | Comment | ||
| RSA0016434 | Helianthus nuttallii subsp. nuttallii | F. W. Peirson | 1923-8-26 | 3987 | San Bernardino | Above Mill Creek Road; San Bernardino Mountains. | 1220 | Comment | ||
| RSA0019565 | Cornus californica | F. W. Peirson | 1924-9-2 | 5193 | San Bernardino | Along stream at road to Green Valley, City Creek Road, San Bernardino Mts., southern California. | 1799 | Comment | ||
| RSA0019820 | Bromus tectorum | F. W. Peirson | 1921-5-30 | 1578 | San Bernardino | Road to Lone Pine Canyon, San Gabriel Mountains, from Cajon Pass. | 991 | Comment | ||
| RSA0020140 | Bromus tectorum | F. W. Peirson | 1932-5-28 | 9962 | San Bernardino | Near summit of Johnson Grade, east of Baldwin Lake, San Bernardino Mountains. | 1829 | Comment | ||
| RSA0020146 | Bromus tectorum | F. W. Peirson | 1924-5-14 | 4543 | San Bernardino | 12 miles east of Victorville. | Comment | |||
| RSA0022772 | Monardella australis subsp. australis | F. W. Peirson | 1929-7-11 | 8472 | San Bernardino | City Creek Road, above Fish Camp, San Bernardino Mts. | 2073 | Comment | ||
| RSA0029720 | Delphinium glaucum | F. W. Peirson | 1906-8-17 | s.n. | San Bernardino | South Fork of Santa Ana River. | 2439 | Comment | ||
| RSA0030747 | Stellaria longipes subsp. longipes | F. W. Peirson | 1922-6-22 | 3115 | San Bernardino | South Fork Santa Meadows. | 2377 | Comment | ||
| RSA0036074 | Pyrola minor | Frank W. Peirson | 1924-7-17 | 4956 | San Bernardino | Lost Creek, San Bernardino Mts. | 2438 | Comment | ||
| RSA0038273 | Krameria parvifolia | Frank W. Peirson | 1926-4-28 | s.n. | San Bernardino | Box S. Spring, Mohave Desert. | 1082 | Comment | ||
| RSA0042705 | Thysanocarpus rigidus | F. W. Peirson | s.n. | San Bernardino | Mojave River. | 883 | Comment | |||
| RSA0050349 | Arctostaphylos patula | F. W. Peirson | 1930-7-7 | 9023 | San Bernardino | Arrastre Flat near Holcomb Valley, San Bernardino Mts. | 2256 | Comment | ||
| RSA0059734 | Fimbristylis thermalis | Frank W. Peirson | 1924-9-2 | 5200 | San Bernardino | Arrowhead Hot Springs. Abundant in the Little Canon. | 579 | Comment | ||
| RSA0063186 | Heuchera parishii | F. W. Peirson | 1930-7-4 | 9000 | San Bernardino | Open ridge above Greene Creek Canyon, Sugarloaf Peak. | 2591 | Comment | ||
| RSA0066546 | Erigeron foliosus var. covillei | F. W. Peirson | 1921-7-4 | 2481 | San Bernardino | 2 miles east of Phelan, north of Cajon Pass. | Comment | |||
| RSA0070643 | Cirsium mohavense | F. W. Peirson | 1924-8-31 | 5135 | San Bernardino | Box S Springs, north base of San Bernardino Mountains. | 1082 | Comment | ||
| RSA0070988 | Phacelia davidsonii | F. W. Peirson | 1924-7-16 | 4968 | San Bernardino | Road to Barton Flats, San Bernardino Mts. | 1677 | Comment | ||
| RSA0074374 | Heterotheca fastigiata | F. W. Peirson | 1920-9-15 | 4734 | San Bernardino | Lytle Creek, eastern San Gabriel Mts. | 1905 | Comment | ||
| RSA0076244 | Scutellaria austiniae | F. W. Peirson | 1924-7-6 | 4925 | San Bernardino | San Bernardino Mountains: City Creek Road. | 1829 | Comment | ||
| RSA0079798 | Carex rossii | Frank W. Peirson | 1918-7-7 | 1620 | San Bernardino | Kelly's Cabin, Ontario Ridge, San Gabriel Mts. | 2499 | Comment | ||
| RSA0079888 | Carex rossii | F. W. Peirson | 1924-7-5 | 4902 | San Bernardino | Bluff Lake. | 2286 | Comment | ||
| RSA0080461 | Pyrola dentata | F. W. Peirson | 1922-7-18 | 519 | San Bernardino | Icehouse Canyon, San Gabriel Mountains. | 2195 | Comment | ||
| RSA0080573 | Pyrola dentata | F. W. Peirson | 1920-9-14 | 4727 | San Bernardino | Slope above Coldwater Cienega: fork of Lytle Creek | 2134 | Comment | ||
| RSA0081601 | Pyrola aphylla | F. W. Peirson | 1920-8-23 | 823 -a | San Bernardino | South fork of Santa Ana River, San Bernardino Mts., southern California. | 1921 | Comment | ||
| RSA0082837 | Pyrola minor | F. W. Peirson | 1920-8-25 | 2587 | San Bernardino | San Bernardino Mts. Dollar Lake region. | 2668 | Comment | ||
| RSA0083333 | Pyrola picta | F. W. Peirson | 1922-8-24 | 3284 | San Bernardino | near summit of San Bernardino Ridge. | 2744 | Comment | ||
| RSA0083779 | Gilia ochroleuca subsp. bizonata | Frank W. Peirson | 1906-08 | 920 | San Bernardino | Icehouse Canyon Divide. San Gabriel Mountains. | 2408 | Comment | ||
| RSA0091579 | Amsinckia vernicosa | F. W. Peirson | 1922-5-13 | 2978 | San Bernardino | North slope of Pilot Knob, northwestern Mojave Desert. | 1296 | Comment | ||
| RSA0101677 | Botrychium simplex var. simplex | Frank W. Peirson | 1922-8-22 | 3272 | San Bernardino | South Fork of Santa Ana River, San Bernardino Mountains. | 2560 | Comment | ||
| RSA0101696 | Botrychium ascendens | Frank W. Peirson | 1922-7-20 | 3207 | San Bernardino | Cienega at Coldwater Fork of Lytle Creek, eastern San Gabriel Mts., San Bernardino Mountains. | 2134 | Comment | ||
| RSA0104954 | Sedum spathulifolium | F. W. Peirson | 1922-6-26 | 4432 | San Bernardino | Barton Flats road, near Glen Martin, San Bernardino Mts. | 1616 | Comment | ||
| RSA0105526 | Eriastrum densifolium subsp. austromontanum | F. W. Peirson | 1906-8-16 | 4127 | San Bernardino | Santa Ana River, near Seven Oaks. | 1524 | Comment | ||
| RSA0117284 | Collinsia parviflora | F. W. Peirson | 1922-6-24 | 3141 | San Bernardino | Santa Ana River at mouth of South Fork. | 1921 | Comment | ||
| RSA0117296 | Collinsia parviflora | Frank W. Peirson | 1926-5-30 | 6751 | San Bernardino | South side of Bear Lake near road to Santa Ana River, about 2 miles from Dam | 2043 | Comment | ||
| RSA0117877 | Myosurus minimus | Frank W. Peirson | 1926-5-31 | 6758 | San Bernardino | Considerable patches were found along north side of meadow about opposite to the spring; Bluff Lake. | 2286 | Comment | ||
| RSA0120396 | Eriastrum eremicum subsp. eremicum | F. W. Peirson | 1927-7-10 | 7352 | San Bernardino | Several miles west of Mexican Well, eastern borders of San Bernardino Co. | 1220 | Comment | ||
| RSA0120408 | Eriastrum eremicum subsp. eremicum | F. W. Peirson | 1926-4-27 | 6684 | San Bernardino | Near Box S Ranch, 18 miles east of Victorville, Mojave Desert. | Comment | |||
| RSA0123321 | Eriastrum sapphirinum subsp. sapphirinum | F. W. Peirson | 1930-7-8 | 9033 | San Bernardino | Fish Hatchery creek [possibly Green Canyon Creek], north slope of Sugarloaf Mt. | 2256 | Comment | ||
| RSA0123331 | Eriastrum sapphirinum subsp. brevibracteatum | F. W. Peirson | 1926-5-29 | 6735 | San Bernardino | Deadman Point, east of Victorville. | Comment | |||
| RSA0123435 | Eriastrum sapphirinum subsp. sapphirinum | F. W. Peirson | 1924-7-15 | 4965 | San Bernardino | Coon Creek Divide, San Bernardino Mts. | 2439 | Comment | ||
| RSA0124165 | Thysanocarpus desertorum | F. W. Peirson | 1922-5-13 | 2970 | San Bernardino | Granite Wells, Mojave Desert. | Comment | |||
| RSA440016 | Cleomella obtusifolia | F. W. Peirson | 1924-5-14 | 1924 | San Bernardino | Mojave Desert; 1 mile w of Box S Ranch. | Comment | |||
| RSA467016 | Chimaphila umbellata subsp. occidentalis | F. W. Peirson | 1924-7-14 | 4964 | San Bernardino | Slope E of S Fork Santa Ana. | 2744 | Comment | ||
| RSA498764 | Lotus procumbens var. procumbens | F. W. Peirson | 1921-5-29 | s.n. | San Bernardino | Summit of Cajon Pass. | 1220 | Comment | ||
| RSA65156 | Eriogonum elongatum | F. W. Peirson | 1928-9-6 | 8202 | San Bernardino | 1 mile north of Warrens Well, S. Mojave Desert. | Comment | |||
| RSA65185 | Chorizanthe corrugata | F. W. Peirson | 1928-4-1 | 7762 | San Bernardino | Bordering the Amargosa Wash, 28 miles north of Baker | Comment | |||
| RSA65274 | Chorizanthe xanti | F. W. Peirson | 1921-7-18 | 2501 | San Bernardino | Lytle Creek Road up Coldwater Fork, east end of San Gabriel Mts. | 1524 | Comment | ||
| RSA65351 | Atriplex rosea | F. W. Peirson | 1924-9-1 | s.n. | San Bernardino | North side of Baldwin Lake, San Bernardino Mountains. | 2043 | Comment | ||
| RSA65364 | Rumex conglomeratus | F. W. Peirson | 1919-6-5 | 463 | San Bernardino | Camp Baldy, San Antonio Canyon, San Gabriel Mts., Los Angeles - San Bernardino Co. line. | 1341 | Comment | ||
| RSA65371 | Atriplex rosea | F. W. Peirson | 1924-9-1 | s.n. | San Bernardino | Cushenbury Springs, N base of San Bernardino Mountains., Mojave Desert. | 1232 | Comment | ||
| RSA65466 | Rumex salicifolius | F. W. Peirson | 1924-7-14 | 4955 | San Bernardino | Lost Creek. | 2363 | Comment | ||
| RSA65652 | Claytonia parviflora subsp. tenuifolia | F. W. Peirson | 1922-6-24 | 604 | San Bernardino | Santa Ana River | 1921 | Comment | ||
| RSA65922 | Rumex crispus | F. W. Peirson | 1922-7-21 | 3211 | San Bernardino | Near stream, Coldwater- San Antonio Canyon Divide, San Gabriel Mts | 2378 | Comment | ||
| RSA66006 | Eriogonum parishii | F. W. Peirson | 1922-8-27 | 1731 | San Bernardino | Santa Ana River | 1463 | Comment | ||
| RSA66013 | Eriogonum nudum var. pauciflorum | F. W. Peirson | 1920-9-16 | 20 | San Bernardino | North Fork, San Antonio Creek. San Gabriel Mountains | 1982 | Comment | ||
| RSA66263 | Eriogonum davidsonii | F. W. Peirson | 1920-9-12 | 2278 | San Bernardino | South trail to Baldy (Mt. San Antonio), San Gabriel Mountains, west end of San Bernardino County | 2439 | Comment | ||
| RSA66812 | Stanleya pinnata | F. W. Peirson | 1924-8-31 | 5125 | San Bernardino | open desert 2 miles W of Box S Ranch, North base of San Bernardino Mts | 915 | Comment | ||
| RSA67356 | Polygonum aviculare subsp. aviculare | F. W. Peirson | 1929-7-11 | 8462 | San Bernardino | Fawskin, Bear Valley, San Bernardino Mountains. | 2043 | Comment | ||
| RSA68767 | Delphinium cardinale | F. W. Peirson | 1919-5-14 | s.n. | San Bernardino | Highland Ave, near San Bernardino. | Comment | |||
| RSA68967 | Plantago major | F. W. Peirson | 1928-9-5 | 8198 | San Bernardino | Near Old Woman Springs, s. Mojave Desert . | 970 | Comment | ||
| RSA69238 | Phyllodoce breweri | F. W. Peirson | 1920-8-22 | 2314 | San Bernardino | Foxesee Creek [Forsee Creek], San Bernardino Mountains. | 2743 | Comment | ||
| RSA69268 | Chimaphila menziesii | F. W. Peirson | 1922-6-24 | 4467 | San Bernardino | Foxesee Creek, San Bernardino Mts. | 1905 | Comment | ||
| RSA69273 | Chimaphila umbellata subsp. occidentalis | F. W. Peirson | 1924-7-14 | 4964 | San Bernardino | Slope E of S Fork Santa Ana. | 2744 | Comment | ||
| RSA694466 | Mirabilis laevis var. villosa | F. W. Peirson | 1935-4-18 | 11487 | San Bernardino | Whipple Mountains: northern part of Whipple Mts. | 427 | Comment | ||
| RSA69452 | Juncus effusus subsp. austrocalifornicus | F. W. Peirson | 1920-8-23 | 2269 | San Bernardino | Sugarloaf Mountain cienega, San Bernardino Mountains. | 1951 | Comment | ||
| RSA69662 | Juncus macrophyllus | F. W. Peirson | 1924-9-2 | 5191 | San Bernardino | City Creek Road, San Bernardino Mountians. | 1982 | Comment | ||
| RSA69709 | Mentzelia obscura | F. W. Peirson | 1932-5-10 | 9956 | San Bernardino | 10 miles N of Baker, on road toward Death Valley. | 229 | Comment | ||
| RSA69716 | Mentzelia dispersa | F. W. Peirson | 1924-7-16 | 4970 | San Bernardino | Road to Barton Flats, San Bernardino Mts. | 1677 | Comment | ||
| RSA69925 | Apocynum androsaemifolium subsp. pumilum | F. W. Peirson | 1929-7-11 | 8473 | San Bernardino | abudnant on open sandy slopes and among rocks; City Creek Road above Fish Camp. | 2073 | Comment | ||
| RSA69926 | Apocynum androsaemifolium subsp. pumilum | F. W. Peirson | 1929-10-26 | 8603 | San Bernardino | Above Fish Camp, City Cr. Road. | 2073 | Comment | ||
| RSA69928 | Apocynum X floribundum | F. W. Peirson | 1924-7-14 | 4958 | San Bernardino | Lost Creek, San Bernardino Mountains. | 2439 | Comment | ||
| RSA70380 | Euphorbia palmeri | F. W. Peirson | 1924-5-16 | 4613 | San Bernardino | In woods on north side of east end of Bear Lake. San Bernardino Mtns. | 2043 | Comment | ||
| RSA70514 | Geranium richardsonii | F. W. Peirson | 1922-6-24 | 3122 | San Bernardino | S fork of Santa Ana River, San Bernardino Mts. | 1982 | Comment | ||
| RSA71827 | Saltugilia splendens | F. W. Peirson | 1924-7-16 | 4972 | San Bernardino | Burned area, Barton Flats Road, San Bernardino Mts. | 1615 | Comment | ||
| RSA71838 | Gilia leptantha subsp. transversa | F. W. Peirson | 1924-5-14 | 4556 | San Bernardino | South side of Cajon Pass. | 1220 | Comment | ||
| RSA72196 | Oenothera californica subsp. californica | F. W. Peirson | 1922-7-7 | 4458 | San Bernardino | 1 miles E of Big Pines, NE portion of San Gabriel Mts | 2012 | Comment | ||
| RSA72323 | Gilia scopulorum | F. W. Peirson | 1935-4-18 | 11484 | San Bernardino | Whipple Mountains | Comment | |||
| RSA73295 | Linanthus pungens | F. W. Peirson | 1927-6-15 | s.n. | San Bernardino | San Gabriel Mountains: west fork of San Antonio Canyon | 2134 | Comment | ||
| RSA74499 | Phacelia ambigua | F. W. Peirson | 1935-4-18 | 11493 | San Bernardino | At summit of low divide, Whipple Mountains. | 457 | Comment | ||
| RSA74705 | Phacelia rotundifolia | F. W. Peirson | 1935-4-18 | 11485 | San Bernardino | Canyon of Copper Basin Creek, Whipple Mts. | Comment | |||
| RSA74787 | Phacelia ramosissima var. latifolia | F. W. Peirson | 1930-7-3 | 8979 | San Bernardino | 1.25 miles below Fish Hatchery on road from Bear lake, San Bernardino Mts. | 2195 | Comment | ||
| RSA74817 | Nama pusilla | F. W. Peirson | 1932-5-10 | 9954 | San Bernardino | 15 miles N of Baker on road to Death Valley. | 213 | Comment | ||
| RSA75120A | Nemacladus glanduliferus | F. W. Peirson | 1932-3-24 | s.n. | San Bernardino | Near the town of Baker. | 280 | Comment | ||
| RSA75120B | Nemacladus orientalis | F. W. Peirson | 1932-3-24 | s.n.-b | San Bernardino | Near the town of Baker. | 280 | Comment | ||
| RSA75348 | Phacelia calthifolia | F. W. Peirson | 1932-3-24 | 9831 | San Bernardino | Near the town of Baker. | 280 | Comment | ||
| RSA75349 | Phacelia calthifolia | F. W. Peirson | 1928-4-1 | 7767 | San Bernardino | Amargosa Wash, 36 miles N of Baker, San Bernardino county. | Comment | |||
| RSA75438 | Camissonia hirtella | F. W. Peirson | 1924-7-16 | 4973 | San Bernardino | Burned area, Barton Flats Road, San Bernardino Mts. | 1616 | Comment | ||
| RSA75504 | Phacelia brachyloba | F. W. Peirson | 1924-7-16 | 4969 | San Bernardino | Road to Barton Flats, San Bernardino Mts. | 1677 | Comment | ||
| RSA77068 | Langloisia setosissima subsp. punctata | F. W. Peirson | 1928-4-1 | 7761 | San Bernardino | Bordering the Amargosa Wash, 28 miles north of Baker | Comment | |||
| RSA77078 | Loeseliastrum schottii | F. W. Peirson | 1926-4-28 | 6687 | San Bernardino | 1 mile below Box S Spring. | Comment | |||
| RSA77194 | Eremalche rotundifolia | F. W. Peirson | 1932-3-24 | 9833 | San Bernardino | Near the town of Baker. | 280 | Comment | ||
| RSA77430 | Apium graveolens | F. W. Peirson | 1920-6-22 | 4052 | San Bernardino | 2 miles south of Chino | Comment | |||
| RSA79629 | Cryptantha simulans | F. W. Peirson | 1922-6-24 | 5813 | San Bernardino | S Fork of Santa Ana River, San Bernardino Mts | 2058 | Comment | ||
| RSA79905 | Physalis philadelphica | F. W. Peirson | 1923-8-26 | 3996 | San Bernardino | above road to Seven Oaks, in Mill Creek. | 1220 | Comment | ||
| RSA79910 | Solanum elaeagnifolium | F. W. Peirson | 1938-4-11 | 12377 | San Bernardino | strong patch in triangular space between two roads in east part of Needles, eastern San Bernardino. | Comment | |||
| RSA79928 | Cryptantha cinerea var. abortiva | F. W. Peirson | 1924-5-16 | 4604 | San Bernardino | In woods on north side of east end of Bear Lake. San Bernardino Mtns. | 2043 | Comment | ||
| RSA79957 | Cryptantha micrantha var. lepida | F. W. Peirson | 1922-6-24 | 4057 | San Bernardino | S Fork of Santa Ana River, San Bernardino Mts | 2058 | Comment | ||
| RSA80066 | Veronica americana | F. W. Peirson | 1922-6-21 | 3133 | San Bernardino | Santa Ana River | 1982 | Comment | ||
| RSA80152 | Mimulus breweri | F. W. Peirson | 1924-9-2 | 5190 | San Bernardino | City Creek Road, San Bernardino Mountians. | 1982 | Comment | ||
| RSA80186 | Antirrhinum coulterianum | F. W. Peirson | 1924-5-14 | 4610 | San Bernardino | Near mouth of Lytle Creek Canyon, northwest of San Bernardino, California | Comment | |||
| RSA80252 | Mohavea breviflora | F. W. Peirson | 1932-3-24 | 9822 | San Bernardino | Abundant along base of rocky hills, Bakers. | 280 | Comment | ||
| RSA81445 | Castilleja applegatei | F. W. Peirson | 1924-7-15 | 4966 | San Bernardino | Coon Creek Divide, San Bernardino Mts. | 2439 | Comment | ||
| RSA82048 | Cordylanthus rigidus subsp. setiger | F. W. Peirson | 1920-9-16 | 4488 | San Bernardino | North (west) Fork of San Antonio Canyon | 1982 | Comment | ||
| RSA82056 | Cordylanthus nevinii | F. W. Peirson | 1920-8-22 | 2680 | San Bernardino | Ridge east of Foxesee Creek [Forsee Creek], San Bernardino Mountains | 2287 | Comment | ||
| RSA82527 | Verbascum thapsus | F. W. Peirson | 1924-7-26 | 4978 | San Bernardino | Little San Gorgonio Creek, Oak Glen region. | 1220 | Comment | ||
| RSA82995 | Salvia dorrii var. pilosa | F. W. Peirson | 1917-5-13 | s.n. | San Bernardino | Victorville, Mojave Desert. | Comment | |||
| RSA83337 | Monardella odoratissima subsp. australis | F. W. Peirson | 1922-8-22 | 4729 | San Bernardino | South Fork of Santa Ana River, San Bernardino Mts. | 2561 | Comment | ||
| RSA84269 | Ranunculus aquatilis var. capillaceus | F. W. Peirson | 1950-7-7 | 9027 | San Bernardino | permanent water hole near Caribou Creek, Holcomb Valley | 2256 | Comment | ||
| RSA84381 | Lithophragma tenellum | F. W. Peirson | 1922-6-22 | 4188 | San Bernardino | South Fork Trail near Barton Flats. | 2317 | Comment | ||
| RSA85006 | Botrychium minganense | F. W. Peirson | 1922-7-20 | 3207 | San Bernardino | Cienega at Coldwater Fork of Lytle Creek. Eastern San Gabriel Mountains, San Bernardino Mountains. Alt. 7000 ft. | 2134 | Comment | ||
| RSA85613 | Potentilla biennis | F. W. Peirson | 1922-8-27 | 4182 | San Bernardino | Banks of Santa Ana River about 1/4 mile above the South Fork | 1936 | Comment | ||
| RSA85776 | Sibbaldia procumbens | F. W. Peirson | 1920-8-22 | 2262 | San Bernardino | Foxesee Creek [Forsee Creek], San Bernardino Mountains. | 2744 | Comment Read comments Jun 12 2015 |
||
| RSA86208 | Cheilanthes parryi | F. W. Peirson | 1935-4-18 | 11501 | San Bernardino | Whipple Mountains: northern part of Whipple Mts. | 426 | Comment | ||
| RSA86689 | Leymus triticoides | F. W. Peirson | 1924-7-1 | 4678 | San Bernardino | Woods along river north of Bridge, Santa Ana River. | Comment | |||
| RSA87032 | Lupinus shockleyi | F. W. Peirson | 1932-5-10 | 9955 | San Bernardino | 10 miles N of Baker, on road toward Death Valley. | 229 | Comment | ||
| RSA87182 | Lupinus elatus | F. W. Peirson | 1920-8-24 | 2253 | San Bernardino | Santa Ana River, San Bernardino Mts. | 1982 | Comment | ||
| RSA87336 | Lupinus concinnus subsp. orcuttii | F. W. Peirson | 1921-5-29 | 544 | San Bernardino | Summit of Cajon Pass. | 1220 | Comment | ||
| RSA90048 | Lotus davidsonii | F. W. Peirson | 1929-8-23 | 8586 | San Bernardino | Woodland opposite Bear Valley Milling and Lumber Co. office | 2073 | Comment | ||
| RSA90065 | Lotus argyraeus var. argyraeus | F. W. Peirson | 1929-7-11 | 8451 | San Bernardino | Along summit of ridge back of Fawnskin, Bear Valley | 2073 | Comment | ||
| RSA90072 | Lotus argophyllus var. argophyllus | F. W. Peirson | 1924-5-16 | 4581 | San Bernardino | City Creek. | 1220 | Comment | ||
| RSA90074 | Lotus argophyllus var. argophyllus | F. W. Peirson | 1922-9-14 | 4692 | San Bernardino | Cascade Canyon, base of Ontario Peak | 1296 | Comment | ||
| RSA90149 | Astragalus lentiginosus var. fremontii | F. W. Peirson | 1930-4-15 | 8726 | San Bernardino | Baker to Las Vegas road at junction with road to Cima. | Comment | |||
| RSA90150 | Astragalus cimae var. cimae | F. W. Peirson | 1930-4-16 | 8738 | San Bernardino | Summit of grade on Cima Road, over New York Mountains | 1828 | Comment | ||
| RSA90160 | Astragalus didymocarpus var. dispermus | F. W. Peirson | 1926-4-27 | 6682 | San Bernardino | Near Box S Ranch, 18 miles east of Victorville, Mojave Desert. | Comment | |||
| RSA90169 | Astragalus lentiginosus var. variabilis | F. W. Peirson | 1917-5-13 | 580 | San Bernardino | West of Victorville. | Comment | |||
| RSA90196 | Alopecurus aequalis | F. W. Peirson | 1929-7-11 | 8466 | San Bernardino | Fawskin, Bear Valley, San Bernardino Mountains. | 2043 | Comment | ||
| RSA90206 | Bromus marginatus | F. W. Peirson | 1930-7-5 | 9004 | San Bernardino | Quarry northwest of Baldwin Lake, San Bernardino Mountains. | 2073 | Comment | ||
| RSA90207 | Bromus orcuttianus var. hallii | F. W. Peirson | 1929-7-11 | 8471 | San Bernardino | City Creek Road along the slopes of Bear Canyon, San Bernardino Mountains. | 2134 | Comment | ||
| RSA90223 | Astragalus douglasii | F. W. Peirson | 1922-6-21 | 4754 | San Bernardino | Santa Ana River | 2012 | Comment | ||
| RSA90241 | Astragalus layneae | F. W. Peirson | 1930-4-14 | 8701 | San Bernardino | A low bench above Cave Spring. | Comment | |||
| RSA90244 | Astragalus layneae | F. W. Peirson | 1927-5-7 | 7282 | San Bernardino | Flowering specimen found half way between Barstow and Victorville; the fruiting specimen found a few miles E of Kramer. | Comment | |||
| RSA90245 | Astragalus layneae | F. W. Peirson | 1922-5-14 | 3011 | San Bernardino | 10 miles N of Barstow. | Comment | |||
| RSA90308 | Lotus rigidus | F. W. Peirson | 1930-4-16 | 8741 | San Bernardino | 6 miles south of summit on Cima road, eastern San Bernardino County | Comment | |||
| RSA90356 | Lotus nevadensis var. davidsonii | F. W. Peirson | 1918-7-7 | 96 | San Bernardino | Ontario Ridge | 2530 | Comment | ||
| RSA90361 | Lotus davidsonii | F. W. Peirson | 1920-8-22 | 4094 | San Bernardino | Ridge east of Foxesee Creek [Forsee Creek], San Bernardino Mountains | 2896 | Comment | ||
| RSA90365 | Lotus heermannii | F. W. Peirson | 1920-8-26 | 4090 | San Bernardino | Santa Ana River | 1372 | Comment | ||
| RSA90387 | Lotus strigosus | F. W. Peirson | 1917-5-14 | 2317 | San Bernardino | Summit of Cajon Pass. | 1220 | Comment | ||
| RSA90405 | Lotus argyraeus var. argyraeus | F. W. Peirson | 1922-6-21 | 2266 | San Bernardino | On river shelf or terrace, Santa Ana River | 1982 | Comment | ||
| RSA90406 | Lotus argyraeus | F. W. Peirson | 1933-6-24 | 10677 | San Bernardino | Along ridge Southward from summit of Johnson Grade, eastern San Bernardino Mts | 2134 | Comment | ||
| RSA90407 | Lotus argyraeus var. argyraeus | F. W. Peirson | 1930-7-5 | 9010 | San Bernardino | Road from Bear Lake to Holcomb Valley, San Bernardino Mts. | 2133 | Comment | ||
| RSA90446 | Glycyrrhiza lepidota | F. W. Peirson | 1916-7-8 | 574 | San Bernardino | Box S Springs ca. 18 miles east of Victorville | 1082 | Comment | ||
| RSA90448 | Glycyrrhiza lepidota | F. W. Peirson | 1921-5-30 | 4425 | San Bernardino | Mojave River, Victorville. | 884 | Comment | ||
| RSA90624 | Chrysothamnus parryi subsp. asper | F. W. Peirson | 1929-9-16 | 8592 | San Bernardino | Road to Fisheries S of Baldwin Lake, San Bernardino Mts. | 2104 | Comment | ||
| RSA90658 | Chrysothamnus viscidiflorus subsp. viscidiflorus | F. W. Peirson | 1924-9-1 | 5149 | San Bernardino | Cactus Flat. | 1799 | Comment | ||
| RSA90660 | Chrysothamnus nauseosus subsp. consimilis | F. W. Peirson | 1935-11-10 | s.n. | San Bernardino | Meadow on road to fisheries, Bear Valley, San Bernardino Mountains | 2134 | Comment | ||
| RSA90663 | Chrysothamnus nauseosus subsp. consimilis | F. W. Peirson | 1929-10-11 | 8597 | San Bernardino | City Creek road, 2-3miles W of Bear Lake Dam, San Bernardino Mts. | 2134 | Comment | ||
| RSA90664 | Chrysothamnus nauseosus subsp. consimilis | F. W. Peirson | 1922-8-26 | 4050 | San Bernardino | Santa Ana River, San Bernardino Mountains | 2057 | Comment | ||
| RSA90666 | Chrysothamnus nauseosus subsp. consimilis | F. W. Peirson | 1929-11-10 | 8606 | San Bernardino | Cactus Flat, eastern San Bernardino Mts. | 1829 | Comment | ||
| RSA90668 | Chrysothamnus nauseosus subsp. consimilis | F. W. Peirson | 1923-9-1 | 4001 | San Bernardino | west end of Swartout Valley | 2011 | Comment | ||
| RSA90681 | Gutierrezia microcephala | F. W. Peirson | 1924-8-31 | 5103 | San Bernardino | 1 mile S of Cajon Pass | 1220 | Comment | ||
| RSA90684 | Gutierrezia microcephala | F. W. Peirson | 1916-7-8 | 1216 | San Bernardino | Box 'S' Springs near north base of San Bernardino Mtns. | 1082 | Comment | ||
| RSA90685 | Gutierrezia sarothrae | F. W. Peirson | 1924-9-1 | 5166 | San Bernardino | Doble, San Bernardino mts | 2073 | Comment | ||
| RSA90686 | Gutierrezia microcephala | F. W. Peirson | 1928-9-6 | 8203 | San Bernardino | 1 mile S of Warrens Well, Southern Mojave Desert | Comment Read comments Mar 24 2011 |
|||
| RSA90689 | Gutierrezia microcephala | F. W. Peirson | 1923-9-1 | 4016 | San Bernardino | Sheep Creek, north side of San Gabriel Mts. | 1524 | Comment | ||
| RSA90693 | Gutierrezia sarothrae | F. W. Peirson | 1920-8-23 | 2755 | San Bernardino | San Bernardino Mountains; Santa Ana River. | 1905 | Comment | ||
| RSA90694 | Gutierrezia sarothrae | F. W. Peirson | 1924-9-1 | 5156 | San Bernardino | Open summit of Johnson Grade, eastern San Bernardino Mts | 2088 | Comment | ||
| RSA90722 | Astragalus leucolobus | F. W. Peirson | 1922-6-21 | 3143 | San Bernardino | Santa Ana River | 1982 | Comment | ||
| RSA90724 | Astragalus purshii var. tinctus | F. W. Peirson | 1922-5-13 | 2976 | San Bernardino | Granite Wells, Mojave Desert. | Comment | |||
| RSA90734 | Astragalus acutirostris | F. W. Peirson | 1926-5-9 | 6734 | San Bernardino | About 10 miles west of Victorville. | Comment | |||
| RSA90852 | Carex senta | F. W. Peirson | 1924-7-14 | 4954 | San Bernardino | Lost Creek, San Bernardino Mountains. | 2287 | Comment | ||
| RSA90888 | Ericameria pinifolia | F. W. Peirson | 1918-11-25 | 2752 | San Bernardino | San Antonio Canyon, San Gabriel Mts. | 1341 | Comment | ||
| RSA90905 | Chrysothamnus nauseosus subsp. hololeucus | F. W. Peirson | 1932-11-12 | 10488 | San Bernardino | Forested areas on mesa S of Baldwin Lake, San Bernardino Mts | 2134 | Comment | ||
| RSA90906 | Chrysothamnus nauseosus subsp. bernardinus | F. W. Peirson | 1923-8-25 | 3998 | San Bernardino | near foot of Vivian Trail, Mill Creek, San Bernardino Mts. | 1829 | Comment | ||
| RSA90913 | Chrysothamnus nauseosus subsp. consimilis | F. W. Peirson | 1924-9-1 | 5155 | San Bernardino | Johnson's Grade, east end of San Bernardino Mountains | 1982 | Comment | ||
| RSA90954 | Erigeron divergens | F. W. Peirson | 1920-8-23 | 1286 | San Bernardino | South fork of Santa Ana River, San Bernardino Mts., southern California. | 1921 | Comment | ||
| RSA90955 | Erigeron divergens | F. W. Peirson | 1922-6-25 | 5294 | San Bernardino | Near Barton Flats, San Bernardino Mountains. | 1982 | Comment | ||
| RSA90960 | Erigeron divergens | F. W. Peirson | 1923-8-25 | 4738 | San Bernardino | Mill Creek, San Bernardino Mts. | 1646 | Comment | ||
| RSA90977 | Erigeron breweri var. porphyreticus | F. W. Peirson | 1922-6-22 | 3100 | San Bernardino | Ridge W of S Fork of Santa Ana | 2256 | Comment | ||
| RSA90979 | Erigeron breweri var. covillei | F. W. Peirson | 1922-8-22 | 3291 | San Bernardino | Meadows of South Fork of Santa Ana River, San Bernardino Mountains. | 2560 | Comment | ||
| RSA90980 | Erigeron breweri var. covillei | F. W. Peirson | 1924-7-14 | 4952 | San Bernardino | Lost Creek, San Bernardino Mountains. | 2287 | Comment | ||
| RSA90986 | Trifolium wormskioldii | F. W. Peirson | 1922-7-5 | 4420 | San Bernardino | Big Pines Meadow, San Bernardino Mts. | 2088 | Comment | ||
| RSA90995 | Trifolium wormskioldii | F. W. Peirson | 1924-9-1 | 5170 | San Bernardino | Arrastre Flat, Holcomb Valley, San Bernardino Mts. | 2271 | Comment | ||
| RSA90996 | Trifolium wormskioldii | F. W. Peirson | 1906-8-15 | 565 | San Bernardino | Bluff Lake, San Bernardino Mts. | 2287 | Comment | ||
| RSA91010 | Conyza canadensis | F. W. Peirson | 1920-8-24 | 5295 | San Bernardino | Big Meadow, upper Santa Ana River | 2133 | Comment | ||
| RSA91017 | Pediomelum castoreum | F. W. Peirson | 1922-5-12 | 3002 | San Bernardino | 3 miles SW of Barstow on the Victorville Rd. | Comment | |||
| RSA91025 | Erigeron aphanactis var. congestus | F. W. Peirson | 1906-8-19 | 1284 | San Bernardino | Summit of Mt San Gorgonio, San Bernardino Mts | 3476 | Comment | ||
| RSA91027 | Erigeron aphanactis var. congestus | F. W. Peirson | 1951-1 | 3102 | San Bernardino | Summit of Sugarloaf Peak, San Bernardino Mts | 2988 | Comment | ||
| RSA91028 | Erigeron aphanactis var. congestus | F. W. Peirson | 1933-6-24 | 10676 | San Bernardino | Along ridge Southward from summit of Johnson Grade, eastern San Bernardino Mts | 2134 | Comment | ||
| RSA91029 | Erigeron foliosus | F. W. Peirson | 1929-9-11 | 8590 | San Bernardino | Bear Valley Boulevard near Peter Pan Woodland Club, Bear Valley, San Bernardino Mts. | 2073 | Comment | ||
| RSA91033 | Erigeron foliosus | F. W. Peirson | 1922-8-27 | 3292 | San Bernardino | Barton Flats road near crossing of Foxessee Creek, San Bernardino Mts | 1601 | Comment | ||
| RSA91125 | Trifolium microcephalum | F. W. Peirson | 1920-8-24 | 2254 | San Bernardino | Head of Santa Ana River, San Bernardino Mts. | 2165 | Comment | ||
| RSA91132 | Trifolium microcephalum | F. W. Peirson | 1920-5-28 | 5209 | San Bernardino | San Antonio Canyon | 1524 | Comment | ||
| RSA91137 | Trifolium monanthum subsp. grantianum | F. W. Peirson | 1906-8-15 | 4070 | San Bernardino | Bluff Lake, San Bernardino Mts. | 2287 | Comment | ||
| RSA91138 | Trifolium monanthum subsp. grantianum | F. W. Peirson | 1924-7-3 | 4070 a | San Bernardino | San Bernardino Mts, alt 7500ft | 2287 | Comment | ||
| RSA91139 | Trifolium monanthum subsp. grantianum | F. W. Peirson | 1924-7-14 | 4950 | San Bernardino | Lost Creek, San Bernardino Mts. | Comment | |||
| RSA91148 | Euthamia occidentalis | F. W. Peirson | 1924-8-31 | 5106 | San Bernardino | South of Victorville. | Comment | |||
| RSA91157 | Lessingia glandulifera var. glandulifera | F. W. Peirson | 1924-8-31 | 5099 | San Bernardino | On road to Phelan N of Cajon Pass, | Comment | |||
| RSA91161 | Lessingia glandulifera var. glandulifera | F. W. Peirson | 1921-5-29 | 1262 | San Bernardino | Almost due east of Hesperia and on Mojave River. | 884 | Comment | ||
| RSA91177 | Isocoma acradenia | F. W. Peirson | 1924-8-31 | 5126 | San Bernardino | 1 miles W of Box 'S' Ranch, Southern Mojave Desert E of Victorville | 915 | Comment | ||
| RSA91201 | Lupinus excubitus var. hallii | F. W. Peirson | 1923-3-23 | 4424 | San Bernardino | 1 mile east of Mentone. | Comment | |||
| RSA91227 | Lupinus elatus | F. W. Peirson | 1906-8-15 | 546 | San Bernardino | Bluff Lake, San Bernardino Mountains. | 2287 | Comment | ||
| RSA91232 | Alnus rhombifolia | F. W. Peirson | 1924-7-12 | 4930 | San Bernardino | Santa Ana River. | 1921 | Comment | ||
| RSA91244 | Vicia americana | F. W. Peirson | 1916-7-4 | 2017 | San Bernardino | Rim road, San Bernardino Mts. | 1524 | Comment | ||
| RSA91253 | Lupinus breweri var. grandiflorus | F. W. Peirson | 1922-6-21 | 3129 | San Bernardino | Santa Ana River, San Bernardino Mts., Southern California | 2165 | Comment | ||
| RSA91257 | Lupinus breweri var. grandiflorus | F. W. Peirson | 1930-7-5 | 9002 | San Bernardino | Wood borders near Peter Pan Woodland Club, Bear Valley, San Bernardino Mts. | 2058 | Comment | ||
| RSA91270 | Isocoma acradenia var. eremophila | F. W. Peirson | 1924-8-31 | 5128 | San Bernardino | Box S Springs, north base of San Bernardino Mountains. | 1082 | Comment | ||
| RSA91274 | Isocoma menziesii | F. W. Peirson | 1923-9-6 | 4034 | San Bernardino | Roadside and fields S of Chhino | Comment | |||
| RSA91340 | Amorpha californica | F. W. Peirson | 1924-7-5 | 4919 | San Bernardino | Gold Mt. near Baldwin Lake. | 2210 | Comment | ||
| RSA91341 | Amorpha californica | F. W. Peirson | 1930-7-7 | 9014 | San Bernardino | San Bernardino Mountains; on road from Doble to Arrastre Flat | 2210 | Comment | ||
| RSA91371 | Psorothamnus arborescens | F. W. Peirson | 1922-5-14 | 2991 | San Bernardino | 17 miles south of Barstow | Comment | |||
| RSA91408 | Trifolium albopurpureum | F. W. Peirson | 1920-5-28 | 2154 | San Bernardino | 0.5 miles above Camp Baldy in San Antonio Canyon, San Gabriel Mts | 1341 | Comment | ||
| RSA91468 | Scirpus microcarpus | F. W. Peirson | 1922-7-17 | 4321 | San Bernardino | San Antonio Canyon, San Gabriel Mtns. | 1296 | Comment | ||
| RSA91473 | Schoenoplectus americanus | F. W. Peirson | 1920-6-22 | 1616 | San Bernardino | Chino Creek | 152 | Comment | ||
| RSA91505 | Trifolium ciliolatum | F. W. Peirson | 1920-5-28 | 2804 | San Bernardino | 0.5 miles above Camp Baldy in San Antonio Canyon, San Gabriel Mts | 1341 | Comment | ||
| RSA91518 | Poa secunda | F. W. Peirson | 1922-6-23 | 4200 | San Bernardino | Summit of Sugarloaf Peak, San Bernardino Mts | 2988 | Comment | ||
| RSA91569 | Trifolium gracilentum | F. W. Peirson | 1922-5-13 | 2969 | San Bernardino | Granite Wells, Mojave Desert. | Comment | |||
| RSA91669 | Hesperostipa comata subsp. comata | F. W. Peirson | 1930-7-1 | 8957 | San Bernardino | Southwest shore of Baldwin Lake | Comment | |||
| RSA91685 | Poa secunda | F. W. Peirson | 1942-5-10 | 13432 | San Bernardino | Summit of Johnson Grade above Baldwin Lake, San Bernardino Mts. | Comment | |||
| RSA91705 | Gnaphalium palustre | F. W. Peirson | 1930-7-7 | 9028 | San Bernardino | Damp place near Caribou Creek, Holcomb Valley, San Bernardino Mts. | 2256 | Comment | ||
| RSA91718 | Gnaphalium thermale | F. W. Peirson | 1924-9-2 | 5192 | San Bernardino | roadside a few roads up the road toward Greer Valley; city Creek Road. | 1799 | Comment | ||
| RSA91720 | Gnaphalium thermale | F. W. Peirson | 1929-10-11 | 8599 | San Bernardino | City Creek road, 2-3miles W of Bear Lake Dam, San Bernardino Mts. | 2134 | Comment | ||
| RSA91721 | Gnaphalium thermale | F. W. Peirson | 1920-9-16 | 5251 | San Bernardino | North Fork, San Antonio Creek. San Gabriel Mountains | 1982 | Comment | ||
| RSA91739 | Gnaphalium chilense var. confertifolium | F. W. Peirson | 1921-5-30 | 2425 | San Bernardino | Mojave River, Victorville. | 884 | Comment | ||
| RSA91745 | Muhlenbergia rigens | F. W. Peirson | 1924-9-2 | 5195 | San Bernardino | Near road to Deep Creek on City Creek Road. | 1829 | Comment | ||
| RSA91748 | Muhlenbergia rigens | F. W. Peirson | 1922-8-27 | 4325 | San Bernardino | Barton Flats, San Bernardino Mountains. | 1982 | Comment | ||
| RSA91781 | Ericameria linearifolia | F. W. Peirson | 1922-5-13 | 3343 | San Bernardino | Granite Wells, NW Mojave Desert | 1250 | Comment | ||
| RSA91906 | Phalaris canariensis | F. W. Peirson | 1922-6-20 | 3107 | San Bernardino | 4 miles east of San Bernardino. | Comment | |||
| RSA91915 | Phragmites australis | F. W. Peirson | 1924-8-31 | 5115 | San Bernardino | South of Victorville | 792 | Comment | ||
| RSA91921 | Poa secunda | F. W. Peirson | 1924-5-15 | 4539 | San Bernardino | N end of Baldwin Lake, San Bernardino Mts | 2058 | Comment | ||
| RSA91967 | Elymus elymoides subsp. californicus | F. W. Peirson | 1918-7-7 | 1603 | San Bernardino | Ontario Ridge, eastern San Gabriel Mountains. | 2530 | Comment | ||
| RSA91973 | Elymus elymoides | F. W. Peirson | 1923-8-24 | 3979 | San Bernardino | Summit of Mt. San Gorgonio, San Bernardino Mountains. | 3500 | Comment | ||
| RSA92052 | Bromus berteroanus | F. W. Peirson | 1935-4-20 | 11702 | San Bernardino | Grade east of Baker. Alt. 1500 ft. | 457 | Comment | ||
| RSA92086 | Eleocharis bella | F. W. Peirson | 1922-8-27 | 3350 | San Bernardino | Barton Flats, San Bernardino Mountains. | 1982 | Comment | ||
| RSA92088 | Eleocharis montevidensis | F. W. Peirson | 1920-5-20 | 2140 | San Bernardino | Lytle Creek, San Gabriel Mts. | 1066 | Comment | ||
| RSA92091 | Eleocharis montevidensis | F. W. Peirson | 1928-9-5 | 8200 | San Bernardino | Below Cottonwood Spring, 0.5 mile north of Old Woman Springs, southern Mojave Desert | 973 | Comment | ||
| RSA92100 | Cyperus laevigatus | F. W. Peirson | 1928-9-6 | 8204 | San Bernardino | Covington Ranch, Morongo Valley. | Comment | |||
| RSA92106 | Cyperus squarrosus | F. W. Peirson | 1928-9-5 | 8197 | San Bernardino | Mojave River in Victorville. | Comment | |||
| RSA92124 | Carex senta | F. W. Peirson | 1922-8-23 | 3276 | San Bernardino | Dry Lake, San Bernardino Mountains. | 2774 | Comment | ||
| RSA92126 | Eleocharis parishii | F. W. Peirson | 1922-7-5 | 3162 | San Bernardino | 1.5 miles east of Big Pines, Swartout Valley (San Gabriel Mts.) | 1981 | Comment | ||
| RSA92128 | Eleocharis palustris | F. W. Peirson | 1930-7-2 | 8976 | San Bernardino | North shore of Baldwin Lake, San Bernardino Mountains. | 2043 | Comment | ||
| RSA92137 | Eleocharis rostellata | F. W. Peirson | 1922-7-7 | 3175 | San Bernardino | Ranger's Cabin, Swartout Valley, north side of San Gabriel Mts. | 1798 | Comment | ||
| RSA92143 | Scirpus acutus var. occidentalis | F. W. Peirson | 1924-8-31 | 5114 | San Bernardino | South of Victorville | 792 | Comment | ||
| RSA92151 | Eleocharis parishii | F. W. Peirson | 1928-9-5 | 8201 | San Bernardino | Below Cottonwood Spring, 0.5 mile north of Old Woman Springs, southern Mojave Desert | 970 | Comment | ||
| RSA92153 | Eleocharis parishii | F. W. Peirson | 1924-8-31 | 5129 | San Bernardino | Box S Springs, southern Mojave Desert | 1082 | Comment | ||
| RSA92209 | Nicolletia occidentalis | F. W. Peirson | 1921-5-29 | 2423 | San Bernardino | Mojave River | 869 | Comment | ||
| RSA92210 | Nicolletia occidentalis | F. W. Peirson | 1930-4-13 | 8695 | San Bernardino | Garlic Spring, Mojave Desert | Comment | |||
| RSA92211 | Nicolletia occidentalis | F. W. Peirson | 1930-5-31 | 8922 | San Bernardino | 3 mi. south of Old Woman Spring. | Comment | |||
| RSA92278 | Layia glandulosa | F. W. Peirson | 1924-5-14 | 4554 | San Bernardino | 2 miles N of Cajon Pass. | 915 | Comment | ||
| RSA92281 | Layia glandulosa | F. W. Peirson | 1926-4-27 | 6674 | San Bernardino | Near Llano | Comment | |||
| RSA92286 | Layia glandulosa | F. W. Peirson | 1924-5-15 | 4591 | San Bernardino | Baldwin Lake. | 2043 | Comment | ||
| RSA92287 | Layia glandulosa | F. W. Peirson | 1930-4-16 | 8728 | San Bernardino | Cima road, 8 miles S of the Las Vegas to Baker road | Comment | |||
| RSA92288 | Layia glandulosa | F. W. Peirson | 1917-5-13 | 1361 | San Bernardino | West of Victorville, on Palmdale road; Mojave Desert. | Comment | |||
| RSA92298 | Cyperus odoratus | F. W. Peirson | 1928-9-5 | 8196 | San Bernardino | Mojave River in Victorville. | Comment | |||
| RSA92303 | Poa fendleriana | F. W. Peirson | 1922-6-23 | 4199 | San Bernardino | Summit of Sugarloaf Peak, San Bernardino Mts | 2988 | Comment | ||
| RSA92304 | Poa fendleriana | F. W. Peirson | 1930-4-28 | 8756 | San Bernardino | SW of Baldwin Lake, San Bernardino Mts | 2104 | Comment | ||
| RSA92308 | Poa secunda | F. W. Peirson | 1924-7-5 | 4918 | San Bernardino | Baldwin lake | Comment | |||
| RSA92365 | Anaphalis margaritacea | F. W. Peirson | 1923-8-21 | 3978 | San Bernardino | Small canyon southeast of Forest Home. San Bernardino Mts. | 1829 | Comment | ||
| RSA92375 | Hymenopappus filifolius var. lugens | F. W. Peirson | 1920-8-25 | 2773 | San Bernardino | Summit of ridge W of the S Fork canyon, Santa Ana River, San Bernardino mts | 2210 | Comment | ||
| RSA92376 | Hymenopappus filifolius var. lugens | F. W. Peirson | 1916-07 | 1380 | San Bernardino | Cushenberry Grade, N slope of San Bernardino Mts. | Comment | |||
| RSA92394 | Eriophyllum pringlei | F. W. Peirson | 1927-5-7 | 7279 | San Bernardino | 1 mile east of Kramer. | 2218 | Comment | ||
| RSA92400 | Bebbia juncea | F. W. Peirson | 1930-4-14 | 8703 | San Bernardino | About 3 miles north of Cave Spring. | Comment | |||
| RSA92406 | Bidens laevis | F. W. Peirson | 1924-8-31 | 5108 | San Bernardino | South of Victorville. | 792 | Comment | ||
| RSA92412 | Coreopsis bigelovii | F. W. Peirson | 1930-4-14 | 8707 | San Bernardino | About 3 miles north of Cave Spring. | Comment | |||
| RSA92413 | Coreopsis bigelovii | F. W. Peirson | 1921-3-29 | 4238 | San Bernardino | Hill slopes above road at Cajon Pass. | 1220 | Comment | ||
| RSA92418 | Coreopsis bigelovii | F. W. Peirson | 1917-5-13 | 2779 | San Bernardino | Between Victorville and Cajon Pass | Comment | |||
| RSA92424 | Helianthus gracilentus | F. W. Peirson | 1922-6-25 | 5253 | San Bernardino | Mill Creek Road | 762 | Comment | ||
| RSA92425 | Helianthus gracilentus | F. W. Peirson | 1929-8-23 | 8581 | San Bernardino | City Creek Grade below Fredalba | 1524 | Comment | ||
| RSA92439 | Poa annua | F. W. Peirson | 1924-5-15 | 4538 | San Bernardino | Wet places along N shore of Baldwin Lake, San Bernardino Mts | 2058 | Comment | ||
| RSA92445 | Panicum urvilleanum | F. W. Peirson | 1922-5-14 | 2965 | San Bernardino | along bank north of railroad tracks, Barstow | Comment | |||
| RSA92471 | Coreopsis californica | F. W. Peirson | 1928-4-26 | 7925 | San Bernardino | 7 miles W of 29 Palms. | Comment | |||
| RSA92472 | Coreopsis californica var. californica | F. W. Peirson | 1919-4-16 | 4237 | San Bernardino | West of Lytle Creek. | 530 | Comment | ||
| RSA92501 | Stylocline gnaphaloides | F. W. Peirson | 1921-5-29 | 5280 | San Bernardino | Cajon Pass | 1098 | Comment | ||
| RSA92506 | Filago californica | F. W. Peirson | 1935-4-18 | 11480 | San Bernardino | Copper basin creek, Whipple Mtns., eastern San Bernardino County. | Comment | |||
| RSA92506A | Stylocline micropoides | F. W. Peirson | 1935-4-18 | 11480 | San Bernardino | Copper basin creek, Whipple Mtns., eastern San Bernardino county | Comment | |||
| RSA92507 | Filago californica | F. W. Peirson | 1921-5-29 | 2422 | San Bernardino | N slope of Cajon Pass. | 1098 | Comment | ||
| RSA92507A | Stylocline psilocarphoides | F. W. Peirson | 1921-5-29 | 2422 | San Bernardino | N slope of Cajon Pass. | 1098 | Comment | ||
| RSA92528 | Bahiopsis parishii | F. W. Peirson | 1930-4-16 | 8748 | San Bernardino | about 10 miles north of Goffs on Cima Road, eastern San Bernardino Co. | Comment | |||
| RSA92543 | Salix exigua | F. W. Peirson | 1918-7-9 | 14 | San Bernardino | San Antonio Canyon, San Gabriel Mountains. | 1341 | Comment | ||
| RSA92617 | Salix lasiolepis | F. W. Peirson | 1919-6-6 | 717 | San Bernardino | North Fork of San Antonio Creek, San Gabriel Mountains | 2287 | Comment | ||
| RSA92641 | Salix lasiolepis | F. W. Peirson | 1932-5-30 | 9972 | San Bernardino | Green Valley, San Bernardino Mts., southern California. | 2104 | Comment | ||
| RSA92647 | Salix lasiolepis | F. W. Peirson | 1923-3-23 | 4293 | San Bernardino | River crossing about 4 miles southeast of San Bernardino. | Comment | |||
| RSA92649 | Salix scouleriana | F. W. Peirson | 1932-5-30 | 9970 | San Bernardino | Green Valley, San Bernardino Mts., southern California. | 2104 | Comment | ||
| RSA92662 | Eriophyllum confertiflorum | F. W. Peirson | 1929-11-10 | 8608 | San Bernardino | Road fill, Johnson Grade, East end of San Bernardino Mts | 1951 | Comment | ||
| RSA92705 | Salix ligulifolia | F. W. Peirson | 1924-5-16 | 4614 | San Bernardino | City Creek Road above Fredalba. | 1524 | Comment | ||
| RSA92707 | Salix lemmonii | F. W. Peirson | 1922-8-24 | 3347 | San Bernardino | Largest stream between Hathaway Creek and South Fork of Santa Ana River, north slope of San Bernardino Ridge. | 2835 | Comment | ||
| RSA92714 | Salix lucida subsp. lasiandra | F. W. Peirson | 1924-5-16 | 9607 | San Bernardino | City Creek Road from Fredalba. | 1524 | Comment | ||
| RSA92716 | Salix lasiandra | F. W. Peirson | 1932-5-30 | 9971 | San Bernardino | Green Valley, San Bernardino Mts., southern California. | 2104 | Comment | ||
| RSA92854 | Chaenactis glabriuscula | F. W. Peirson | 1922-5-14 | 3005 | San Bernardino | Half between Barstow and Victorville | Comment | |||
| RSA92866 | Urtica dioica subsp. holosericea | F. W. Peirson | 1919-6-6 | 30 | San Bernardino | North Fork of San Antonio Creek, San Gabriel Mts. | 2439 | Comment | ||
| RSA92887 | Populus fremontii subsp. fremontii | F. W. Peirson | 1921-7-17 | 2513 | San Bernardino | Lytle Creek. | 1982 | Comment | ||
| RSA92890 | Populus tremuloides | F. W. Peirson | 1924-7-13 | 4940 | San Bernardino | Fish Creek. | 2195 | Comment | ||
| RSA92895 | Hesperocnide tenella | F. W. Peirson | 1924-5-14 | 4547 | San Bernardino | 12 miles east of Victorville. | Comment | |||
| RSA92897 | Parietaria hespera var. hespera | F. W. Peirson | 1935-4-18 | 11481 | San Bernardino | abundant in canyon of Copper Basin Creek, growing in shade of rock walls; Whipple Mts. eastern San Bernardino Co. | Comment | |||
| RSA92901 | Madia elegans subsp. densifolia | F. W. Peirson | 1919-6-5 | 237 | San Bernardino | Camp Baldy, San Antonio Canyon, San Gabriel Mts., Los Angeles - San Bernardino Co. line. | 1341 | Comment | ||
| RSA92907 | Madia elegans subsp. wheeleri | F. W. Peirson | 1920-8-23 | 2776 | San Bernardino | South fork of Santa Ana River, San Bernardino Mts., southern California. | 1921 | Comment | ||
| RSA93018 | Bahia dissecta | F. W. Peirson | 1920-8-24 | 2245 | San Bernardino | Santa Ana River, San Bernardino Mts. | 1982 | Comment | ||
| RSA93019 | Bahia dissecta | F. W. Peirson | 1922-8-23 | 3282 | San Bernardino | S Fork of Santa Ana River, San Bernardino Mts | 2622 | Comment Read comments Jul 19 2009 |
||
| RSA93070 | Machaeranthera arida | F. W. Peirson | 1928-4-1 | 7758 | San Bernardino | Silver Lake, about 8 miles north of Baker, e. Mojave Desert. | Comment | |||
| RSA93076 | Solidago californica | F. W. Peirson | 1924-9-2 | 5178 | San Bernardino | Fish Camp, San Bernardino Mountains | 2058 | Comment | ||
| RSA93077 | Solidago confinis | F. W. Peirson | 1924-9-2 | s.n. | San Bernardino | Arrowhead Hot Springs, San Bernardino Mountains. | 579 | Comment | ||
| RSA93078 | Solidago confinis | F. W. Peirson | 1924-8-31 | s.n. | San Bernardino | Box S Spring, north base of San Bernardino Mountains. | 1082 | Comment | ||
| RSA93080 | Solidago confinis | F. W. Peirson | 1923-8-30 | 4025 | San Bernardino | Northeast part of San Gabriel Range; Clyde Ranch to Lone Pine Canyon. | 1494 | Comment | ||
| RSA93082 | Solidago confinis | F. W. Peirson | 1922-9-14 | s.n. | San Bernardino | Along lower part of trail to Cascade Canyon, San Antonio Canyon, San Gabriel Mountains, western San Bernardino Co. | 915 | Comment | ||
| RSA93083 | Solidago confinis | F. W. Peirson | 1920-8-24 | s.n. | San Bernardino | Big Meadow, San Bernardino Mountains, southern California. [County not listed but most likely San Bernardino Co.] | 2134 | Comment | ||
| RSA93116 | Corethrogyne filaginifolia var. filaginifolia | F. W. Peirson | 1924-5-14 | 4609 | San Bernardino | Eastern San Gabriel Mountains, near mouth of Lytel [Lytle] Creek Canyon | 610 | Comment | ||
| RSA93121 | Corethrogyne filaginifolia | F. W. Peirson | 1929-10-11 | 8600 | San Bernardino | City Creek road, 2-3miles W of Bear Lake Dam, San Bernardino Mts. | 2134 | Comment | ||
| RSA93149 | Aster ascendens | F. W. Peirson | 1924-9-1 | 5165 | San Bernardino | North side of Baldwin Lake, San Bernardino Mountains. | 2043 | Comment | ||
| RSA93151 | Aster ascendens | F. W. Peirson | 1920-8-23 | 2260 | San Bernardino | San Bernardino Mountains; Santa Ana River. | 1905 | Comment | ||
| RSA93156 | Machaeranthera canescens | F. W. Peirson | 1922-8-23 | 3289 | San Bernardino | Wood borders, S Fork of Santa Ana River, San Bernardino Mts | 2561 | Comment | ||
| RSA93158 | Machaeranthera canescens | F. W. Peirson | 1909-8-9 | 1273 | San Bernardino | Dry Lake, S Fork Santa Ana, San Bernardino Mts, Southern California. | 2805 | Comment | ||
| RSA93160 | Baccharis sergiloides | F. W. Peirson | 1921-12-18 | 2648 | San Bernardino | Base of Pilot Knob, Granite Wells, NW Mojave Desert | Comment | |||
| RSA93167 | Baccharis emoryi | F. W. Peirson | 1920-12-30 | 1297 | San Bernardino | E of bridge across Santa Ana River, SE of San Bernardino | 305 | Comment | ||
| RSA93181 | Machaeranthera canescens | F. W. Peirson | 1927-7-10 | 7357 | San Bernardino | Mexican Well, eastern border of San Bernardino Co. | 1220 | Comment | ||
| RSA93219 | Ericameria cooperi | F. W. Peirson | 1921-5-30 | 5427 | San Bernardino | Mojave River, Victorville. | 884 | Comment | ||
| RSA93235 | Ericameria cuneata var. spathulata | F. W. Peirson | 1929-11-10 | 8607 | San Bernardino | Cactus Flat, eastern San Bernardino Mts. | 1829 | Comment | ||
| RSA93241 | Chrysothamnus teretifolius | F. W. Peirson | 1921-12-18 | 2649 | San Bernardino | Base of Pilot Knob, Granite Wells, NW Mojave Desert | Comment | |||
| RSA93253 | Ericameria cuneata var. spathulata | F. W. Peirson | 1921-12-18 | 2657 | San Bernardino | Base of Pilot Knob, Granite Wells, NW Mojave Desert | Comment | |||
| RSA93289 | Corethrogyne filaginifolia | F. W. Peirson | 1923-8-25 | 4736 | San Bernardino | Mill Creek, San Bernardino Mts. | 1646 | Comment | ||
| RSA93290 | Corethrogyne filaginifolia | F. W. Peirson | 1922-8-25 | 3268 | San Bernardino | Along base of E slope, S Fork of Santa Ana River, San Bernardino Mts | 2500 | Comment | ||
| RSA93294 | Ericameria cooperi | F. W. Peirson | 1928-4-25 | 7920 | San Bernardino | White Tank region 11 miles S of 29 Palms. | Comment | |||
| RSA93320 | Machaeranthera carnosa | F. W. Peirson | 1924-8-31 | 5131 | San Bernardino | Box S Springs, north base of San Bernardino Mountains. | 1082 | Comment | ||
| RSA93343 | Xylorhiza tortifolia | F. W. Peirson | 1922-5-14 | 3000 | San Bernardino | 5 miles north of Barstow. | Comment | |||
| RSA93347 | Xylorhiza tortifolia | F. W. Peirson | 1917-5-13 | 1269 | San Bernardino | West of Victorville. | Comment | |||
| RSA93350 | Aster bernardinus | F. W. Peirson | 1924-8-31 | 5121 | San Bernardino | South of Victorville. | 792 | Comment | ||
| RSA93355 | Aster ascendens | F. W. Peirson | 1922-8-27 | 3290 | San Bernardino | Meadow at Barton Flats, San Bernardino Mts | 1951 | Comment | ||
| RSA93437 | Brickellia microphylla | F. W. Peirson | 1920-9-15 | 2279 | San Bernardino | North Fork of Lytle Creek | 1829 | Comment | ||
| RSA93438 | Brickellia microphylla | F. W. Peirson | 1921-12-18 | 2646 | San Bernardino | Base of Pilot Knob, Granite Wells, NW Mojave Desert | Comment | |||
| RSA93626 | Antennaria rosea | F. W. Peirson | 1906-8-17 | 1312 | San Bernardino | South Fork of Santa Ana River. | 2591 | Comment | ||
| RSA93628 | Antennaria rosea | F. W. Peirson | 1924-7-14 | 4963 | San Bernardino | Summit of ridge between Lost Creek and South Fork of Santa Ana River. San Bernardino Mts. | 2866 | Comment | ||
| RSA93640 | Antennaria dimorpha | F. W. Peirson | 1924-5-15 | 4596 | San Bernardino | Low places near Baldwin Lake | 2043 | Comment | ||
| RSA93741 | Aster frondosus | F. W. Peirson | 1924-7-5 | 4595 a | San Bernardino | North shore of Baldwin Lake | 2037 | Comment | ||
| RSA93754 | Artemisia spinescens | F. W. Peirson | 1921-5-13 | 2981 | San Bernardino | 26 miles north of Barstow | Comment | |||
| RSA93762 | Baileya pleniradiata | F. W. Peirson | 1926-4-27 | 6676 | San Bernardino | 16 miles W of victorville, Mojave Desert | Comment | |||
| RSA93763 | Baileya pleniradiata | F. W. Peirson | 1930-4-16 | 8731 | San Bernardino | Cima road, 8 miles S of the Las Vegas to Baker road | Comment | |||
| RSA93768 | Geraea canescens | F. W. Peirson | 1927-5-7 | 7286 | San Bernardino | 10 miles W of Barstow | Comment | |||
| RSA93774 | Lobelia cardinalis subsp. graminea | F. W. Peirson | 1923-8-26 | 3995 | San Bernardino | Mill Creek; southern San Bernardino Mountains. | 1220 | Comment | ||
| RSA93775 | Lobelia cardinalis subsp. graminea | F. W. Peirson | 1907-8-14 | 1211 | San Bernardino | Road from Seven Oaks to Bear Valley, San Bernardino Mountains. | Comment | |||
| RSA93779 | Lobelia cardinalis subsp. graminea | F. W. Peirson | 1924-9-2 | 5204 | San Bernardino | Marshes on Santa Ana River, about 2 miles south of San Bernardino. | Comment | |||
| RSA93780 | Brickellia arguta | F. W. Peirson | 1930-4-16 | 8747 | San Bernardino | 12 mi. N of Goffs on road to Cima, E San Bernardino Co. | Comment | |||
| RSA93781 | Brickellia arguta | F. W. Peirson | 1930-4-29 | 8765 | San Bernardino | rocky point 2 mi. W of Box S Ranch, near N base of San Bernardino Mts. | 915 | Comment | ||
| RSA93828 | Chaenactis carphoclinia var. carphoclinia | F. W. Peirson | 1922-5-12 | 2974 | San Bernardino | Mojave Desert. 10 miles north of Barstow. | Comment | |||
| RSA93839 | Artemisia nova | F. W. Peirson | 1924-9-1 | 5157 | San Bernardino | Summit of Johnson Grade, eastern San Bernardino Mountains | 2088 | Comment | ||
| RSA93843 | Aster bernardinus | F. W. Peirson | 1928-9-5 | 8195 | San Bernardino | Victorville | Comment | |||
| RSA93848 | Baileya pleniradiata | F. W. Peirson | 1916-7-8 | 1366 | San Bernardino | Box 'S' Springs near north base of San Bernardino Mtns. | 1082 | Comment | ||
| RSA93849 | Baileya pleniradiata | F. W. Peirson | 1924-5-14 | 5449 | San Bernardino | Open desert, 17 miles east of Victorville. | Comment | |||
| RSA93852 | Chrysothamnus parryi subsp. asper | F. W. Peirson | 1924-9-1 | 5168 | San Bernardino | Arrastre Flats, Holcomb Valley, San Bernardino Mts | 2287 | Comment | ||
| RSA93872 | Helenium puberulum | F. W. Peirson | 1923-8-26 | 3986 | San Bernardino | Above Mill Creek Road; San Bernardino Mountains. | 1220 | Comment | ||
| RSA93890 | Helenium decurrens | F. W. Peirson | 1922-7-22 | 244 | San Bernardino | San Antonio Canyon, San Gabriel Mts | 1829 | Comment | ||
| RSA93892 | Encelia farinosa var. phenicodonta | F. W. Peirson | 1935-4-18 | 11486 | San Bernardino | Copper basin creek, Whipple Mtns., eastern San Bernardino County. | Comment | |||
| RSA93899 | Encelia actoni | F. W. Peirson | 1922-5-13 | 4145 | San Bernardino | 2 miles north of Granite Wells, Mojave Desert. | Comment | |||
| RSA93912 | Iva axillaris | F. W. Peirson | 1930-7-2 | 8973 | San Bernardino | North side of Baldwin Lake. | 2043 | Comment | ||
| RSA93915 | Iva axillaris subsp. robustior | F. W. Peirson | 1916-7-9 | 1322 a | San Bernardino | East of Victorville. | Comment | |||
| RSA93938 | Encelia californica | F. W. Peirson | 1923-3-23 | 4146 | San Bernardino | Mentone near Redlands | Comment Read comments Oct 22 2011 |
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| RSA93945 | Artemisia dracunculus | F. W. Peirson | 1921-12-18 | 2647 | San Bernardino | Granite Wells, Mojave Desert, northwestern San Berndino Co. | Comment | |||
| RSA93946 | Artemisia dracunculus | F. W. Peirson | 1920-8-22 | 4747 | San Bernardino | Ridge east of Foxesee Creek [Forsee Creek], San Bernardino Mountains. | 2744 | Comment | ||
| RSA93965 | Machaeranthera pinnatifida subsp. gooddingii | F. W. Peirson | 1932-3-23 | 9813 | San Bernardino | Along base of desert hills,18 miles S of Needles on Blythe Road | Comment Read comments Aug 9 2011 |
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| RSA93966 | Machaeranthera pinnatifida subsp. gooddingii | F. W. Peirson | 1935-4-10 | 11489 | San Bernardino | Rocky canyon walls, Copper Basin Creek, Whipple Mts. | Comment Read comments Aug 9 2011 |
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| RSA94083 | Psathyrotes annua | F. W. Peirson | 1924-8-31 | 5127 | San Bernardino | 1 miles W of Box S Ranch, Southern Mojave Desert E of Victorville | 915 | Comment | ||
| RSA94084 | Psathyrotes annua | F. W. Peirson | 1916-07 | 1427 | San Bernardino | Victorville. | Comment | |||
| RSA94102 | Madia elegans subsp. wheeleri | F. W. Peirson | 1935-6-29 | s.n. | San Bernardino | SW of Baldwin Lake, San Bernardino Mts. | Comment Read comments Apr 29 2011 |
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| RSA94117 | Brickellia desertorum | F. W. Peirson | 1924-8-31 | 5122 | San Bernardino | Deadman Point E of Victorville | 915 | Comment Read comments Jul 21 2010 |
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| RSA94121 | Brickellia californica | F. W. Peirson | 1922-9-14 | 4732 | San Bernardino | Cascade Canyon tributary to San Antonio Creek, San Gabriel Mts | 1402 | Comment | ||
| RSA94124 | Hulsea vestita subsp. vestita | F. W. Peirson | 1924-5-27 | 4642 | San Bernardino | N slope of Strawberry Peak, San Bernardino Mts. | 1677 | Comment | ||
| RSA94157 | Hulsea heterochroma | F. W. Peirson | 1929-7-11 | 8468 | San Bernardino | City Creek Road along the slopes of Bear Canyon, San Bernardino Mountains. | 2134 | Comment | ||
| RSA94160 | Hulsea heterochroma | F. W. Peirson | 1921-5-30 | 2490 | San Bernardino | Going up to Lone Pine Canyon from Cajon Canyon, San Gabriel Mountains. | 991 | Comment | ||
| RSA94161 | Monoptilon bellidiforme | F. W. Peirson | 1928-3-31 | 7755 | San Bernardino | N of Victorville. | Comment | |||
| RSA94167 | Monoptilon bellioides | F. W. Peirson | 1922-5-14 | 4741 | San Bernardino | Half between Barstow and Victorville | Comment | |||
| RSA94169 | Monoptilon bellidiforme | F. W. Peirson | 1926-4-27 | 6681 | San Bernardino | Open desert near Box S Ranch, N base of San Bernardino Mts | Comment | |||
| RSA94170 | Artemisia ludoviciana subsp. incompta | F. W. Peirson | 1923-8-25 | 3989 | San Bernardino | Vivian Creek, San Bernardino Mountains | 2226 | Comment | ||
| RSA94191 | Artemisia ludoviciana subsp. ludoviciana | F. W. Peirson | 1931-10-10 | 9601 | San Bernardino | San Bernardino Mts. Slope north of Baldwin Lake. | 2073 | Comment | ||
| RSA94193 | Artemisia ludoviciana subsp. incompta | F. W. Peirson | 1923-9-1 | 3197 | San Bernardino | Ranger Station, Swartout [Swarthout] Valley, north slope of San Gabriel Mts. | 1799 | Comment | ||
| RSA94196 | Artemisia ludoviciana | F. W. Peirson | 1932-11-12 | 10486 | San Bernardino | Forest border southwest of Baldwin Lake. | 2058 | Comment | ||
| RSA94198 | Artemisia ludoviciana subsp. incompta | F. W. Peirson | 1924-8-31 | 5118 | San Bernardino | Along ponds south of Victorville | 793 | Comment | ||
| RSA94364 | Madia gracilis | F. W. Peirson | 1919-6-5 | 508 | San Bernardino | San Antonio Canyon, San Gabriel Mountains. | 1341 | Comment | ||
| RSA94382 | Dyssodia cooperi | F. W. Peirson | 1928-4-26 | 7926 | San Bernardino | 10 miles W of 29 Palms. | Comment | |||
| RSA94383 | Dyssodia cooperi | F. W. Peirson | 1922-5-12 | 2986 | San Bernardino | 3 miles SW of Barstow on the Victorville Rd. | Comment | |||
| RSA94384 | Dyssodia cooperi | F. W. Peirson | 1927-5-8 | 7292 | San Bernardino | Half way between Victorville and Barstow. | Comment | |||
| RSA94387 | Dyssodia porophylloides | F. W. Peirson | 1935-4-18 | 11488 | San Bernardino | Copper basin creek, Whipple Mtns., eastern San Bernardino County. | Comment | |||
| RSA94488 | Arnica chamissonis subsp. foliosa | F. W. Peirson | 1922-8-23 | 3273 | San Bernardino | Dry lake, north base of Mt. San Gorgonio. | 2774 | Comment | ||
| RSA94489 | Arnica chamissonis subsp. foliosa | F. W. Peirson | 1924-7-5 | 4895 | San Bernardino | Bluff Lake | 2317 | Comment | ||
| RSA94490 | Arnica chamissonis subsp. foliosa | F. W. Peirson | 1929-7-11 | 8464 | San Bernardino | Fawskin, Bear Valley, San Bernardino Mts. Summit of ridge back of public campgrounds. | 2043 | Comment | ||
| RSA94575 | Artemisia biennis | F. W. Peirson | 1924-9-1 | 5160 | San Bernardino | North side of Baldwin Lake, San Bernardino Mountains. | 2043 | Comment | ||
| RSA94600 | Anisocoma acaulis | F. W. Peirson | 1924-5-14 | 4608 | San Bernardino | South side of Cajon Pass. | 1220 | Comment | ||
| RSA94612 | Syntrichopappus fremontii | F. W. Peirson | 1930-4-16 | 8749 | San Bernardino | about 10 miles north of Goffs on Cima Road, eastern San Bernardino Co. | Comment | |||
| RSA94638 | Syntrichopappus fremontii | F. W. Peirson | 1922-5-12 | 4243 | San Bernardino | 22 miles north of Barstow, | Comment | |||
| RSA94669 | Senecio douglasii var. monoensis | F. W. Peirson | 1927-5-8 | 7294 | San Bernardino | Half way between Victorville and Barstow. | Comment | |||
| RSA94922 | Cirsium occidentale var. californicum | F. W. Peirson | 1930-7-3 | 8983 | San Bernardino | About 0.5 mile below Fish Hatchery south of Baldwin Lake. | 2195 | Comment | ||
| RSA94932 | Tetradymia axillaris | F. W. Peirson | 1928-4-26 | 7928 | San Bernardino | 2 miles south of Warren's Well, east of Morongo Valley. | Comment | |||
| RSA94946 | Tetradymia canescens | F. W. Peirson | 1920-8-25 | 2771 | San Bernardino | along trail that follows west bank of canyon of South Fork of Santa Ana River, San Bernardino Mts. | 2134 | Comment | ||
| RSA94950 | Tetradymia canescens | F. W. Peirson | 1920-9-15 | 1431 | San Bernardino | North Fork of Lytle Creek | 1829 | Comment | ||
| RSA94974 | Prenanthella exigua | F. W. Peirson | 1932-3-24 | 9829 | San Bernardino | Near the town of Baker. | 280 | Comment | ||
| RSA94975 | Prenanthella exigua | F. W. Peirson | 1928-4-1 | 7760 | San Bernardino | Bordering the Amargosa Wash, 28 miles north of Baker | Comment | |||
| RSA94976 | Prenanthella exigua | F. W. Peirson | 1927-5-7 | 7276 | San Bernardino | 1 mile east of Kramer. | Comment | |||
| RSA94979 | Stephanomeria spinosa | F. W. Peirson | 1924-9-1 | 5164 | San Bernardino | Baldwin Lake at foot of Gold Mountain | 2043 | Comment | ||
| RSA95003 | Malacothrix glabrata | F. W. Peirson | 1920-5-19 | 2149 | San Bernardino | North Fork of Lytle Creek, San Gabriel Mts | 1067 | Comment | ||
| RSA95022 | Malacothrix sonchoides | F. W. Peirson | 1922-5-14 | 3001 | San Bernardino | 8 miles north of Barstow. | Comment | |||
| RSA95023 | Malacothrix sonchoides | F. W. Peirson | 1930-4-29 | 8764 | San Bernardino | Open desert near Box S Ranch, SW San Bernardino County. | 915 | Comment | ||
| RSA95024 | Malacothrix sonchoides | F. W. Peirson | 1926-4-27 | 6685 | San Bernardino | Near Box S Ranch, 18 miles east of Victorville, Mojave Desert. | Comment | |||
| RSA95025 | Malacothrix sonchoides | F. W. Peirson | 1932-4-17 | 9865 | San Bernardino | 13 miles W oif Adelanto. | Comment | |||
| RSA95051 | Sonchus asper | F. W. Peirson | 1923-3-18 | 1487 | San Bernardino | Along ditch south of Chino. | Comment | |||
| RSA95054 | Picris echioides | F. W. Peirson | 1920-6-22 | 2169 | San Bernardino | 2 miles south of Chino | Comment | |||
| RSA95067 | Rafinesquia neomexicana | F. W. Peirson | 1926-4-27 | 6675 | San Bernardino | 20 miles west of Voctorville | Comment | |||
| RSA95090 | Calycoseris wrightii | F. W. Peirson | 1935-4-18 | 11490 | San Bernardino | Copper basin creek, Whipple Mtns., eastern San Bernardino county | Comment | |||
| RSA95091 | Calycoseris parryi | F. W. Peirson | 1927-5-7 | 7820 | San Bernardino | 1 mile east of Kramer. | Comment | |||
| RSA95093 | Calycoseris parryi | F. W. Peirson | 1917-5-14 | 1484 | San Bernardino | Cajon Pass. | Comment | |||
| RSA95096 | Calycoseris parryi | F. W. Peirson | 1930-4-14 | 8706 | San Bernardino | About 3 miles north of Cave Spring. | Comment | |||
| RSA95097 | Glyptopleura setulosa | F. W. Peirson | 1917-5-13 | 1485 | San Bernardino | West of Victorville, on Palmdale road; Mojave Desert. | Comment | |||
| RSA95110 | Agoseris heterophylla var. heterophylla | F. W. Peirson | 1920-8-24 | 2255 | San Bernardino | Big Meadow, upper Santa Ana River | 2133 | Comment | ||
| RSA95115 | Agoseris heterophylla var. heterophylla | F. W. Peirson | 1924-7-5 | 4913 | San Bernardino | North shore of Baldwin Lake | 2037 | Comment | ||
| RSA95121 | Agoseris retrorsa | F. W. Peirson | 1919-6-5 | 5292 | San Bernardino | Camp Baldy, San Antonio Canyon, San Gabriel Mts. | 1296 | Comment | ||
| RSA95124 | Agoseris grandiflora var. grandiflora | F. W. Peirson | 1919-6-5 | 458 | San Bernardino | Camp Baldy, San Antonio Canyon. | 1371 | Comment | ||
| RSA95156 | Hieracium horridum | F. W. Peirson | 1922-9-14 | 3203 | San Bernardino | Younger specimens from Ontario Peak at 8700 ft. on July 18, 1922. Older ones from Cascade Canyon at 4500 ft. | 2651 | Comment | ||
| RSA95157 | Hieracium horridum | F. W. Peirson | 1920-8-22 | 2343 | San Bernardino | Foxesee Creek [Forsee Creek], San Bernardino Mountains | 2743 | Comment | ||
| RSA95158 | Hieracium horridum | F. W. Peirson | 1930-8-7 | 9024 | San Bernardino | Holcomb Valley, San Bernardino Mts | 2256 | Comment | ||
| RSA95160 | Hieracium horridum | F. W. Peirson | 1924-8-15 | 2581 | San Bernardino | Bluff Lake, San Bernardino Mts. | 2287 | Comment | ||
| RSA95177 | Hieracium albiflorum | F. W. Peirson | 1923-8-25 | 3990 | San Bernardino | Shaded bank above Vivian Creek, San Bernardino Mts. | 2287 | Comment | ||
| RSA95210 | Stephanomeria exigua subsp. coronaria | F. W. Peirson | 1924-8-31 | 5102 | San Bernardino | one mile north of Cajon Pass. | 1220 | Comment | ||
| RSA95211 | Stephanomeria exigua subsp. exigua | F. W. Peirson | 1918-6-18 | 1470 | San Bernardino | Mojave Desert, along road west of Victorville | Comment | |||
| RSA95212 | Stephanomeria exigua subsp. exigua | F. W. Peirson | 1921-7-4 | 5291 | San Bernardino | 2 miles east of Phelan, Mojave Desert. | Comment | |||
| RSA95213 | Stephanomeria exigua subsp. exigua | F. W. Peirson | 1930-5-30 | 8906 | San Bernardino | 1 mile north of Llano | Comment | |||
| RSA95216 | Stephanomeria pauciflora var. pauciflora | F. W. Peirson | 1920-9-15 | 2674 | San Bernardino | North Fork of Lytle Creek | 1829 | Comment | ||
| RSA95218 | Stephanomeria pauciflora | F. W. Peirson | 1924-8-31 | 5130 | San Bernardino | Box S Spring, north base of San Bernardino Mts. | 1082 | Comment | ||
| RSA95230 | Stephanomeria parryi | F. W. Peirson | 1930-5-31 | 8921 | San Bernardino | 16 miles west of Victorville | Comment | |||
| RSA95243 | Microseris lindleyi | F. W. Peirson | 1919-4-16 | 5290 | San Bernardino | Cajon Pass, west end of San Bernardino Mts. | 686 | Comment | ||
| RSA95370 | Sphaeralcea ambigua var. rugosa | F. W. Peirson | 1922-5-14 | 4107 | San Bernardino | Granite Wells Road 26 miles north of Barstow | Comment | |||
| RSA97120 | Cornus sericea subsp. sericea | F. W. Peirson | 1922-7-5 | 3186 | San Bernardino | 1.5 miles east of Big Pines, Swartout Valley (San Gabriel Mts.) | 1981 | Comment | ||
| RSA97160 | Lomatium dissectum var. multifidum | F. W. Peirson | 1920-5-19 | 2153 | San Bernardino | Coldwater Canyon, fork of Lytle Creek, San Gabriel Mountains | 1677 | Comment | ||
| RSA97232 | Cornus nuttallii | F. W. Peirson | 1924-5-16 | 4582 | San Bernardino | City Creek Road above Fredalba. | Comment | |||
| RSA97297 | Garrya veatchii | F. W. Peirson | 1923-2-27 | 139 | San Bernardino | San Antonio Canyon, San Gabriel Mts, Line between Los Angeles and San Bernardino counties. | 915 | Comment | ||
| RSA97320 | Lomatium lucidum | F. W. Peirson | 1921-5-29 | 4462 | San Bernardino | Summit of Cajon Pass. | 1220 | Comment | ||
| RSA97383 | Lomatium nevadense var. parishii | F. W. Peirson | 1920-5-19 | 2679 | San Bernardino | Coldwater Canyon, fork of Lytle Creek, San Gabriel Mountains | 1677 | Comment | ||
| RSA97385 | Cicuta bolanderi | F. W. Peirson | 1924-9-2 | 5205 | San Bernardino | Santa Ana River Marshes, 2 miles south of San Bernardino. | 305 | Comment | ||
| RSA97414 | Tauschia parishii | F. W. Peirson | 1930-7-5 | 9009 | San Bernardino | Road from Bear Lake to Holcomb Valley, San Bernardino Mts. | 2133 | Comment | ||
| RSA97418 | Tauschia parishii | F. W. Peirson | 1924-5-29 | 2424 | San Bernardino | Mohave River, north base of San Bernardino Mountains. | 884 | Comment | ||
| RSA97429 | Arceuthobium campylopodum | F. W. Peirson | 1909-08 | 1721 | San Bernardino | South Fork of Santa Ana River. | Comment | |||
| RSA97431 | Arceuthobium californicum | F. W. Peirson | 1920-8-22 | 2818 | San Bernardino | East of Foxesee Creek [Forsee Creek], San Bernardino Mountains. | 2134 | Comment | ||
| RSA97433A | Lomatium mohavense subsp. mohavense | F. W. Peirson | 1922-5-12 | 2973 | San Bernardino | Old road through Cajon Pass | 1098 | Comment | ||
| RSA97445 | Phoradendron juniperinum subsp. juniperinum | F. W. Peirson | 1922-6-21 | 3142 | San Bernardino | Cienega Seca Creek. | 2134 | Comment | ||
| RSA97446 | Phoradendron libocedri | F. W. Peirson | 1716 | San Bernardino | on Libodedrus, on trail to Mt. San Gorgonio. | Comment | ||||
| RSA97447 | Phoradendron pauciflorum | F. W. Peirson | 1909-08 | 1718 | San Bernardino | on Abies concolor; South Fork of Santa Ana River. | Comment | |||
| RSA97457 | Osmorhiza berteroi | F. W. Peirson | 1924-7-12 | 4929 | San Bernardino | Santa Ana River. | 1921 | Comment | ||
| RSA98358 | Berula erecta | F. W. Peirson | 1930-7-10 | 9042 | San Bernardino | in stream from Box S Spring, foot of Cushenberry Grade, north base of mountains. | 1082 | Comment | ||
| SD87557 | Caulanthus cooperi | Frank W. Peirson | 1927-5-7 | 7284 | San Bernardino | Several miles east of Kramer. | Comment | |||
| SEINET10460621 | Heterocodon rariflorum | Frank W. Peirson | Peirson 1210 | San Bernardino | SAN GABRIEL MTNS | Comment | ||||
| SEINET3882078 | Luzula campestris | Frank W. Peirson | 1922-6-24 | s.n. | San Bernardino | In damp shaded location. Santa Ana River, San Bernardino Mts.; 0 | 1920 | Comment | ||
| SEINET8225754 | Eremogone ursina | Frank W. Peirson | 1924-1 | San Bernardino | Comment | |||||
| UC501548 | Nama pusilla | Frank W. Peirson | 1932-5-10 | 9954 | San Bernardino | on the Death Valley Road 15 mi from Baker; Death Valley road, 15 mi from Baker | 213 | Comment | ||
| UC672188 | Erigeron breweri var. breweri | Frank W. Peirson | 1922-6-22 | 3100 | San Bernardino | trail on ridge w of South Fork Santa Anna River; San Bernardino Mts., South Fork Santa Anna River | 2255 | Comment | ||
| UC672234 | Erigeron aphanactis var. congestus | Frank W. Peirson | 1924-7-13 | 4943 | San Bernardino | Fish Creek, Mission Creek | 2529 | Comment | ||
| UC909098 | Loeseliastrum matthewsii | Frank W. Peirson | 1927-5-7 | 7283 | San Bernardino | several mi. e. Kramer | Comment | |||
| UC909101 | Loeseliastrum matthewsii | Frank W. Peirson | 1927-5-7 | 7283 | San Bernardino | several mi. e. Kramer | Comment | |||
| UCD170059 | Sagina saginoides | Frank W. Peirson | 1922-6-21 | 5- 319 | San Bernardino | San Bernardino Mountains, Cienega Seca Creek. | 2133 | Comment | ||
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