Search Results — 352 specimen records retrieved (136 records with coordinates)
Results for search: County=SHASTA; Source=All; Collector=Peirson;   

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC116988  Carex straminiformis Frank Warrington Peirson 1932-7-12 10110 Shasta Inner slope of the Red Crater, 1000-Lake Basin. South of Burney. 2042 Comment
  CAS-BOT-BC149666  Spiraea douglasii Frank W. Peirson 1932-7-14 10162 Shasta Lake Basin 1950 Comment
  CAS-BOT-BC313437  Hemizonella minima F. W. Peirson 1932-7-9 10298 Shasta Burney Spring 1432 Comment
  CAS-BOT-BC334664  Madia glomerata F. W. Peirson 1932-7-9 10297 Shasta Burney Springs 1432 Comment
  CAS-BOT-BC343414  Madia gracilis Frank W. Peirson 1932-7-9 10297 Shasta Burney Spring 1432 Comment
  JEPS61031  Plagiobothrys hispidulus Frank W. Peirson 1932-7-9 10290 a Shasta Burney Spring 1432 Comment
  JEPS71067  Collomia tinctoria Frank W. Peirson 1932-7-12 10200 Shasta s Burney (on rim of Red Crater); 1000 Lake Basin 2072 Comment
  LA96460  Mimulus nanus var. mephiticus Frank W. Peirson; 1932-7-12 10212 Shasta 1000 Lake Basin 2011 Comment
  LA96476  Mimulus nanus var. mephiticus Frank W. Peirson; 1932-7-16 10309 Shasta Burney Spring 1432 Comment
  NY590187  Penstemon davidsonii var. davidsonii F. W. Peirson 1932-7-15 10217 Shasta On east slope of Mount Magee; 1000-Lake Basin 2286.0 Comment
  PASA1236  Smilax californica Frank W. Peirson 1932-7-17 Shasta Wallace Ranch, Goose Valley 914 Comment
  PASA1592  Phyllodoce breweri Frank W. Peirson 1932-7-15 Shasta 1000-Lake Basin 2194 Comment
  POM203394  Horkelia tridentata subsp. tridentata F. W. Peirson 1932-7-14 10169 Shasta Eiler Butte, Thousand-Lake Basin 1951 Comment
  POM203545  Cynoglossum occidentale F. W. Peirson 1932-7-10 10207 Shasta Margin of Lake Eiler, Thousand-Lake Basin. 1951 Comment
  POM259435  Agrostis exarata F. W. Peirson 1932-7-17 s.n. Shasta Wallace Ranch, Goose Valley. 915 Comment
  RSA494791  Juncus orthophyllus F. W. Peirson 1932-7-13 10123 Shasta 1000-Lake Basin, (south of Burney). 1951 Comment
  RSA64592  Eriogonum pyrolifolium var. pyrolifolium F. W. Peirson 1926-6-23 6843 Shasta Trail to summit of Lassen Peak, Lassen National Park Comment
  RSA65032  Silene occidentalis F. W. Peirson 1932-7-16 10307 Shasta Burney Spring. 1433 Comment
  RSA65115  Eriogonum marifolium F. W. Peirson 1932-7-13 10140 Shasta Thousand-Lake region 1951 Comment
  RSA65869  Polygonum douglasii F. W. Peirson 1932-7-9 10284 Shasta Below Burney Spring 1433 Comment
  RSA65956  Eriogonum umbellatum var. polyanthum F. W. Peirson 1932-7-19 10343 Shasta Mt. Lassen. 1829 Comment
  RSA66025  Eriogonum vimineum F. W. Peirson 1932-7-16 10314 Shasta abundant near edge of meadow, in red volcanic country east of Burney. Burney Spring, 1433 Comment
  RSA66098  Cardamine bellidifolia var. pachyphylla F. W. Peirson 1935-7-15 10155 Shasta Mt. Magee, Thousand Lake Basin. 2363 Comment
  RSA66100  Cardamine bellidifolia F. W. Peirson 1926-6-23 6847 Shasta Upper portion of trail to summit of Lassen Peak. Lassen National Park. Comment
  RSA66333  Polygonum kelloggii F. W. Peirson 1932-7-14 10137 Shasta Eiler Butte, Thousand-Lake Basin 1951 Comment
  RSA69237  Phyllodoce breweri F. W. Peirson 1932-7-15 10194 Shasta Lake at east end of Mt. Magee, Thousand Lake Basin. 2195 Comment
  RSA69258  Kalmia polifolia subsp. microphylla F. W. Peirson 1926-6-23 6935 Shasta Trail to summit of Lassen Peak, Lassen National Park. Comment
  RSA69627  Juncus mexicanus F. W. Peirson 1932-7-9 10271 Shasta Below Burney Spring 1433 Comment
  RSA69655  Spiranthes porrifolia Frank W. Peirson 1932-7-12 10133 Shasta Along shore of Lake Eiler. Thousand-Lake Basin. 1951 Comment
  RSA70064  Juncus parryi F. W. Peirson 1932-7-12 10121 Shasta In crater of Red Crater Hill; Thousand-Lake Basin. 1951 Comment
  RSA70283  Juncus nevadensis F. W. Peirson 1932-7-14 10119 Shasta Shores of Lake Eiler, Thousand-Lake Basin. 1951 Comment
  RSA70304  Juncus orthophyllus F. W. Peirson 1932-7-13 10123 Shasta Thousand-Lake Basin 1951 Comment
  RSA70423  Polygala cornuta var. cornuta F. W. Peirson 1932-7-9 10282 Shasta Burney Spring. 1433 Comment
  RSA70424  Polygala cornuta var. cornuta F. W. Peirson 1932-7-17 10331 Shasta Wallace Ranch. Goose Valley. 915 Comment
  RSA704790  Collinsia torreyi var. latifolia F. W. Peirson 1932-7-9 10295 Shasta Burney Springs, 1433 Comment
  RSA70568  Vaccinium uliginosum subsp. occidentale F. W. Peirson 1932-7-14 10195 Shasta Thousand-Lake Basin. 1951 Comment
  RSA70573  Vaccinium F. W. Peirson 1932-7-14 10196 Shasta Thousand-Lake Basin. 1951 Comment
  RSA70825  Arctostaphylos patula F. W. Peirson 1932-7-10 10192 Shasta Thousand-Lake Basin. 1951 Comment
  RSA70832  Arctostaphylos nevadensis F. W. Peirson 1932-7-10 10191 Shasta Interlake Area, Thousand-Lake Basin. 1951 Comment
  RSA71919  Ipomopsis congesta subsp. congesta F. W. Peirson 1932-7-12 10201 Shasta Shasta County: along rim of Red Crater, Thousand Lake Basin. 2012 Comment
  RSA71946  Collomia tinctoria F. W. Peirson 1932-7-12 10200 Shasta Shasta County: along rim of Red Crater, Thousand Lake Basin. 2012 Comment
  RSA71949  Collomia grandiflora F. W. Peirson 1932-7-16 10308 Shasta Burney Spring 1433 Comment
  RSA766344  Eriogonum marifolium F. W. Peirson 1932-7-13 10140 Shasta 1000-Lake Basin. 1951 Comment
  RSA76997  Acer glabrum var. torreyi F. W. Peirson 1932-7-12 10178 Shasta On north slope of Red Crater, 1000 Lake Basin 1982 Comment
  RSA77697  Ceanothus prostratus F. W. Peirson 1932-7-14 10180 Shasta Thousand Lake Basin. 1951 Comment
  RSA77780  Viola adunca F. W. Peirson 1932-7-13 10184 Shasta In Big Meadow, Thousand-Lake Basin. 1951 Comment
  RSA77805  Cynoglossum occidentale F. W. Peirson 1932-7-10 10207 Shasta Near Lake Eiler, Thousand-Lake Basin. 1951 Comment
  RSA79843  Penstemon davidsonii subsp. davidsonii F. W. Peirson 1932-7-15 10217 Shasta On east slope of Mt. Magee, Thousand-Lake Basin. 2287 Comment
  RSA79850  Penstemon neotericus F. W. Peirson 1932-7-14 10219 Shasta Rocky slopes of Eiler Butte, Thousand Lake Basin. 1951 Comment
  RSA79874  Penstemon deustus subsp. heterander F. W. Peirson 1932-7-14 10218 Shasta South slope of Eiler Butte, Thousand-Lake Basin. 1951 Comment
  RSA79956  Leucophysalis nana F. W. Peirson 1932-7-14 10208 Shasta Near south end of Eiler Butte, Thousand-Lake Basin. 1951 Comment
  RSA80082  Mimulus nanus var. mephiticus F. W. Peirson 1932-7-12 10212 Shasta Along rim of Red Crater. Thousand Lake Basin. Sierra Nevada. 2012 Comment
  RSA80107  Mimulus nanus var. mephiticus F. W. Peirson 1932-7-16 10309 Shasta Below old log cabin and along the road; Burney Spring. 1433 Comment
  RSA80481  Mimulus primuloides F. W. Peirson 1932-7-12 10211 Shasta Along shore of Lake Eiler. Thousand-Lake Basin. 1951 Comment
  RSA80708  Hypericum androsaemum F. W. Peirson 1932-7-12 13465 Shasta Shores of Lake Eiler, Thousand-Lake Basin Comment
  RSA82242  Castilleja applegatei subsp. pinetorum F. W. Peirson 1932-7-14 10417 Shasta East of Lake Eiler, Thousand-Lake Basin. 1951 Comment
  RSA83380  Monardella odoratissima F. W. Peirson 1932-7-9 10292 Shasta Burney Springs, 1433 Comment
  RSA83962  Saxifraga nidifica F. W. Peirson 1926-6-23 6832 Shasta Along trail near meadows on way to summit of Mt. Lassen. Mt. Lassen National Park. Comment
  RSA83984  Saxifraga aprica F. W. Peirson 1932-7-11 10157 Shasta Thousand Lake Basin. The interlake region. 1951 Comment
  RSA85218  Horkelia fusca var. brownii F. W. Peirson 1932-7-9 10274 Shasta Below Burney Spring 1433 Comment
  RSA85243  Spiraea douglasii F. W. Peirson 1932-7-17 10316 Shasta Wallace Ranch. Goose Valley. 915 Comment
  RSA85249  Spiraea douglasii F. W. Peirson 1932-7-10 10162 Shasta Thousand-Lake Basin. 1951 Comment
  RSA85250  Spiraea densiflora F. W. Peirson 1932-7-10 10162 -a Shasta Along stream, Thousand- Lake Basin Comment
  RSA85296  Ranunculus occidentalis var. ultramontanus F. W. Peirson 1932-7-9 10285 Shasta Below Burney Spring 1433 Comment
  RSA85785  Potentilla breweri var. breweri F. W. Peirson 1932-7-13 10170 Shasta In the Big Meadow, Thousand-Lake Basin. 1951 Comment
  RSA85807  Potentilla glandulosa subsp. ashlandica F. W. Peirson 1932-7-13 10173 Shasta Shores of Lake Eiler, Thousand-Lake Basin. 1951 Comment
  RSA86344  Juniperus occidentalis var. occidentalis F. W. Peirson 1932-7-18 11148 Shasta Along the road near Hat Creek Post Office Comment
  RSA86625  Purshia tridentata var. tridentata F. W. Peirson 1932-7-12 10166 Shasta Rim of Red Crater. Thousand-Lake Basin. 1982 Comment
  RSA86691  Leymus triticoides F. W. Peirson 1932-7-9 10269 Shasta in a pasture at Burney Spring 1433 Comment
  RSA86698  Festuca idahoensis F. W. Peirson 1932-7-9 10268 Shasta Burney Spring. 1433 Comment
  RSA86707  Deschampsia cespitosa subsp. cespitosa F. W. Peirson 1932-7-12 10106 Shasta Thousand-Lake Basin. 1951 Comment
  RSA86816  Amelanchier pallida F. W. Peirson 1932-7-14 11149 Shasta Shasta County: toward the S end of the ridge E of Lake Eiler in very rocky place, Thousand Lake Basin. 2012 Comment
  RSA86828  Rubus leucodermis F. W. Peirson 1932-7-13 10165 Shasta W of Red Crater, Thousand Lake Basin. 1951 Comment
  RSA86844  Prunus virginiana var. melanocarpa F. W. Peirson 1932-7-16 10306 Shasta Near Burney Spring 1433 Comment
  RSA86849  Prunus emarginata F. W. Peirson 1932-7-13 10164 Shasta West of Red Crater, Thousand-Lake Basin. 1951 Comment
  RSA87124  Koeleria macrantha F. W. Peirson 1932-7-9 10266 Shasta along water course below Burney Spring 1433 Comment
  RSA87461  Melica bulbosa var. inflata F. W. Peirson 1932-7-9 10267 Shasta Burney Spring. 1433 Comment
  RSA87471  Lupinus obtusilobus F. W. Peirson 1926-6-23 6845 Shasta Trail to summit of Lassen Peak, Lassen National Park. Comment
  RSA88779  Carex scopulorum var. bracteosa F. W. Peirson 1932-7-15 10115 Shasta Wet margin of upper lake at east foot of Magee, Thousand-Lake Basin. 2195 Comment
  SD87610  Silene lemmonii Frank W. Peirson 1932-7-9 10272 Shasta Burney Spring. 1430 Comment
Read comments
Jul 10 2010
  SD87666  Arenaria congesta Frank W. Peirson 1932-7-11 10145 Shasta South of Burney, 1000-Lake Basin. 1950 Comment
  SD87768  Lonicera conjugialis Frank W. Peirson 1932-7-12 10223 Shasta One Thousand Lake Basin; along the shore of Lake Eiler. 1950 Comment
  UC483081  Salix lemmonii Frank W. Peirson 1932-7-12 10132 b Shasta 1000-Lake slope of Red Crater Comment
  UC483082  Salix scouleriana Frank W. Peirson 1932-7-12 10135 a Shasta n. slope Red Crater; 1000-Lake Basin 2011 Comment
  UC483083  Salix lemmonii Frank W. Peirson 1932-7-12 10134 b Shasta along shore Lake Eiler; 1000-Lake Basin 1950 Comment
  UC501427  Navarretia leptalea subsp. leptalea Frank W. Peirson 1932-7-9 10288 Shasta Burney Spring 1432 Comment
  UC501428  Ipomopsis congesta Frank W. Peirson 1932-7-12 10201 Shasta s Burney (rim of the Red Crater); 1000-Lake Basin 2072 Comment
  UC501430  Collomia grandiflora Frank W. Peirson 1932-7-16 10308 Shasta top of wooded slope behind camp Burney Spring 1432 Comment
  UC501432  Scutellaria antirrhinoides Frank W. Peirson 1932-7-17 10327 Shasta Goose Valley, Wallace Ranch Goose Valley; , Wallace Ranch 914 Comment
  UC501433  Cycladenia humilis var. humilis Frank W. Peirson 1932-7-12 10197 Shasta s. of Burney (along rim of Red Crater); 1000-Lake Basin, Red Crater 2072 Comment
  UC501435  Stachys ajugoides var. ajugoides Frank W. Peirson 1932-7-17 10319 Shasta Wallace Ranch Goose Valley 914 Comment
  UC501440  Linanthus harknessii Frank W. Peirson 1932-7-9 10287 Shasta Burney Spring 1432 Comment
  UC501446  Arnica dealbata Frank W. Peirson 1932-7-14 10236 Shasta s of Burney; 1000 Lake Basin 1950 Comment
  UC501448  Erigeron inornatus var. inornatus Frank W. Peirson 1932-7-17 10336 Shasta Wallace Ranch Goose Valley 914 Comment
  UC501455  Arctostaphylos nevadensis Frank W. Peirson Jul 10 1932-Jul 16 1932 10191 Shasta s Burney; 1000-Lake Basin 1950 Comment
  UC501465  Collomia tinctoria Frank W. Peirson 1932-7-12 10200 Shasta on rim Red Crater (s of Burney); 1000-Lake Basin 2072 Comment
  UC501472  Epilobium hallianum Frank W. Peirson 1932-7-14 10187 Shasta w Lake Eiler (s of Burney); 1000-Lake Basin 1950 Comment
  UC501473  Scutellaria nana Frank W. Peirson 1932-7-9 10283 Shasta Burney Springs 1432 Comment
  UC501474  Gayophytum humile Frank W. Peirson 1932-7-14 10188 Shasta open stream depression n Lake Eiler (s of Burney); 1000-Lake Basin 1950 Comment
  UC501477  Clarkia rhomboidea Frank W. Peirson 1932-7-9 10281 Shasta Burney Spring 1432 Comment
  UC501481  Mentzelia dispersa Frank W. Peirson 1932-7-9 10275 Shasta Burney Spring 1432 Comment
  UC501483  Polygala cornuta var. cornuta Frank W. Peirson 1932-7-17 10331 Shasta Wallace Ranch Goose Valley 914 Comment
  UC501511  Polygonum polygaloides subsp. kelloggii Frank W. Peirson 1932-7-13 10137 Shasta s Burney; 1000-Lake Basin 1950 Comment
  UC501512  Sidalcea oregana subsp. spicata Frank W. Peirson 1932-7-9 10273 Shasta Burney Spring 1432 Comment
  UC501527  Chamaesaracha nana Frank W. Peirson 1932-7-14 10208 Shasta s of Burney (on ridge e of Lake Eiler); 1000-Lake Basin 1981 Comment
  UC501532  Arenaria congesta var. congesta Frank W. Peirson 1932-7-11 10145 Shasta s Burney (1000- Lake Basin); Lake Basin 1950 Comment
  UC501537  Silene douglasii Frank W. Peirson 1932-7-11 10144 Shasta s Burney (1000-Lake Basin, Interlake region); 1000-Lake Basin, s of Burney 1950 Comment
  UC501540  Saxifraga aprica Frank W. Peirson 1932-7-11 10157 Shasta s of Burney; 1000 Lake Basin 1950 Comment
  UC501552  Plagiobothrys hispidulus Frank W. Peirson 1932-7-9 10290 Shasta Burney Spring 1432 Comment
  UC501553  Collinsia torreyi var. latifolia Frank W. Peirson 1932-7-9 10295 Shasta Burney Spring 1432 Comment
  UC501554  Galium bolanderi Frank W. Peirson 1932-7-16 10300 Shasta Burney Spring 1432 Comment
  UC501558  Carex multicostata Frank W. Peirson 1932-7-12 10110 Shasta s Burney (inner slope of the Red Crater); 1000-Lake Basin, Red Crater 2042 Comment
  UC501559  Deschampsia cespitosa subsp. cespitosa Frank W. Peirson 1932-7-12 10106 Shasta 1000-Lake Basin s. of Burney (along shore of Lake Eiler); 1000-Lake Basin, Lake Eiler 1950 Comment
  UC501560  Danthonia californica var. americana Frank W. Peirson 1932-7-13 10107 Shasta s Burney; 1000-Lake Basin 1950 Comment
  UC501561  Melica bulbosa Frank W. Peirson 1932-7-9 10267 Shasta meadow below Burney Spring 1432 Comment
  UC501562  Festuca idahoensis Frank W. Peirson 1932-7-16 10268 Shasta Burney Spring 1432 Comment
  UC501563  Koeleria macrantha Frank W. Peirson 1932-7-9 10266 Shasta Burney Spring 1432 Comment
  UC501570  Achnatherum occidentale subsp. californicum Frank W. Peirson 1932-7-9 10265 Shasta Burney Spring 1432 Comment
  UC501571  Bromus orcuttianus Frank W. Peirson 1932-7-16 10304 Shasta Burney Spring 1432 Comment
  UC501577  Trifolium kingii var. productum Frank W. Peirson 1932-7-13 10177 Shasta s Burney (1000-Lake Basin) 1950 Comment
  UC501584  Potentilla breweri Frank W. Peirson 1932-7-13 10171 Shasta 1000-Lake Basin 1950 Comment
  UC501585  Horkelia tridentata subsp. tridentata Frank W. Peirson 1932-7-9 Shasta Burney Spring 1432 Comment
  UC501595  Ribes nevadense Frank W. Peirson 1932-7-14 10161 Shasta s Burney; 1000-Lake Basin 1950 Comment
  UC501603  Arabis suffrutescens Frank W. Peirson 1932-7-11 10151 Shasta s of Burney; 1000-Lake Basin 1950 Comment
  UC501604  Boechera sparsiflora Frank W. Peirson 1932-7-11 10152 Shasta s of Burney; 1000-Lake Basin 1950 Comment
  UC501605  Boechera platysperma Frank W. Peirson 1932-7-10 10153 Shasta s of Burney; 1000-Lake Basin 1950 Comment
  UC501606  Rhamnus rubra Frank W. Peirson 1932-7-13 10179 Shasta s of Burney; 1000-Lake Basin 1950 Comment
  UC501607  Juncus parryi Frank W. Peirson 1932-7-12 10121 Shasta s of Burney (on the inner slope of Red Crater); 1000-Lake Basin, Red Crater 2042 Comment
  UC501608  Juncus orthophyllus Frank W. Peirson 1932-7-13 10123 Shasta s of Burney; 1000-Lake Basin 1950 Comment
  UC501616  Calochortus nudus Frank W. Peirson 1932-7-12 10130 Shasta s of Burney; 1000-Lake Basin 1950 Comment
  UC501641  Navarretia divaricata Frank W. Peirson 1932-7-9 10289 Shasta Burney Spring 1432 Comment
  UC501642  Leymus triticoides Frank W. Peirson 1932-7-9 10269 Shasta Burney Spring; fenced-in enclosure at lower end of meadow 1432 Comment
  UC639575  Potentilla breweri Frank W. Peirson 1932-7-13 10171 Shasta Thousand Lake Basin 1950 Comment
  UC696740  Penstemon neotericus Frank W. Peirson 1932-7-14 10219 a Shasta rocky locations on ridge e Lake Eiler (1000-Lake Basin, eastern Shasta County); 1000-Lake Basin, e of Lake Eiler 1950 Comment
  UCD85951  Koeleria macrantha F. W. Peirson 1932-7-9 10266 Shasta Burney Spring. 1432 Comment
  UCR136620  Collinsia torreyi F. W. Peirson 1932-7-12 10209 Shasta 1000-lake Basin [Thousand Lakes Valley], southward from Burney 2012 Comment
  CAS-BOT-BC115053  Carex vesicaria Frank Warrington Peirson 1932-7-10 10116 Shasta Margina of Lake Eiler, 1000-Lake Basin 1950 Comment
  CAS-BOT-BC230832  Trifolium productum Frank W. Peirson 1932-7-10 10177 Shasta 1000-Lake Basin 1950 Comment
  CAS-BOT-BC25460  Boechera retrofracta Frank W. Peirson 1932-7-11 10152 Shasta 1000-Lake Basin. 1950 Comment
  CAS-BOT-BC295870  Arnica dealbata Frank W. Peirson 1926-6-23 6833 Shasta Trail from Drakesbad to Lassen Peak, Lassen National Park Comment
  CAS-BOT-BC314804  Helianthella californica var. nevadensis Frank W. Peirson 1932-7-16 10301 Shasta Trail to 1000 Lake Basin 1524 Comment
  CAS-BOT-BC31689  Carex mariposana Frank W. Peirson 1932-7-15 10117 Shasta 1000-Lake Basin, South of Burney. Margin of small lake at the foot of Mt. Magee. 2194 Comment
  CAS-BOT-BC343413  Madia gracilis Frank W. Peirson 1932-7-9 10297 Shasta Burney Spring 1430 Comment
  CAS-BOT-BC349357  Microseris nutans Frank W. Peirson 1926-6-22 6812 Shasta Trail from Drakesbad to Boiling Lake, Lassen National Park 1706 Comment
  CAS-BOT-BC412899  Aconogonon davisiae Frank W. Peirson 1926-6-23 6841 Shasta In central and upper parts of trail to summit of Lassen Peak, Lassen National Park Comment
  CAS-BOT-BC464498  Allium campanulatum F. W. Peirson 1932-7-12 s.n. Shasta 1000- Lake Basin 1950 Comment
  CAS-BOT-BC60757  Physaria occidentalis Frank W. Peirson 1926-6-23 6837 Shasta Trail to summit of Lassen Peak. Upper part of trail. Comment
  CAS-BOT-BC69960  Isoetes bolanderi F. W. Peirson 1932-7-16 10102 Shasta Small pond just separated from Lake Eiler, Thousand Lake Basin. 1950 Comment
  CAS-BOT-BC97569  Symphyotrichum ascendens Frank W. Peirson 1932-7-12 10230 Shasta 1000-Lake Basin, along shore of Lake Eiler 1950 Comment
  PASA128  Mimulus mohavensis Frank W. Peirson 1922-5-14 Shasta Half way from Victoryville to Barstow. On so-called Devil's Kitchen Comment
Read comments
Jun 24 2016
  PASA1628  Dicentra formosa Frank W. Peirson 1926-6-22 Shasta Drakesbad, Lassen National Park. Trail to the Devil's Kitchen Comment
  POM203376  Juncus nevadensis F. W. Peirson 1932-7-9 s.n. Shasta Burney Spring. 1433 Comment
  POM203395  Ranunculus alismifolius var. alismellus F. W. Peirson 1932-7-13 10148 Shasta Thousand-Lake Basin 1951 Comment
  POM203542  Hesperolinon micranthum F. W. Peirson 1932-7-16 s.n. Shasta Burney Spring 1433 Comment
  POM203543  Cryptantha affinis F. W. Peirson 1932-7-9 s.n. Shasta Burney Spring. 1433 Comment
  POM272508  Arabis suffrutescens F. W. Peirson 1932-7-11 s.n. Shasta Forest floor of the interlake region, Thousand Lake Basin. 1951 Comment
  POM272622  Arabis platysperma var. howellii F. W. Peirson 1932-7-10 10153 Shasta 1000-Lake Basin (south of Burney). 1951 Comment
  POM279134  Leptosiphon harknessii F. W. Peirson 1932-7-9 10287 Shasta Burney Spring. 1433 Comment
  POM98582  Eriogonum ursinum F. W. Peirson 1926-6-22 6806 Shasta Lassen National Park, Shasta County: 2 miles below end of road in sandy creek bottom lands Comment
  POM98583  Cordylanthus tenuis subsp. viscidus F. W. Peirson 1926-6-22 6807 Shasta Lassen National Park, in vicinity of Boiling Lake Comment
  POM98586  Erythronium purpurascens Frank W. Peirson 1926-6-23 6844 Shasta Trail to summit of Lassen Peak, Lassen National Park. Comment
  RSA0013794  Nuphar lutea subsp. polysepala F. W. Peirson 1932-7-16 10146 Shasta Thousand-Lake Region. 1951 Comment
  RSA0018034  Ribes roezlii F. W. Peirson 1932-7-14 10160 Shasta Eiler Butte, Thousand-Lake Basin. 2012 Comment
  RSA0020913  Ribes viscosissimum F. W. Peirson 1932-7-10 10158 Shasta Thousand-Lake Basin. 1951 Comment
  RSA0023145  Ribes nevadense F. W. Peirson 1932-7-14 10161 Shasta Thousand-Lake Basin. 1951 Comment
  RSA0024863  Ribes cereum F. W. Peirson 1932-7-14 10159 Shasta Thousand-Lake Basin. 1951 Comment
  RSA0070616  Cirsium douglasii var. breweri F. W. Peirson 1932-7-17 10322 Shasta Wallace Ranch, Goose Valley. 915 Comment
  RSA0078640  Kopsiopsis strobilacea F. W. Peirson 1932-7-11 10221 Shasta South of Mt. Magee, Thousand-Lake Basin. 2255 Comment
  RSA0079804  Carex rossii F. W. Peirson 1932-7-12 10111 Shasta Bottom of crater, Red Crater Hill, Thousand-Lake Basin. 2042 Comment
  RSA0080475  Pyrola dentata F. W. Peirson 1932-7-12 10193 Shasta North slope of Red Crater, Thousand-Lake Basin. 1951 Comment
  RSA0084029  Potentilla breweri F. W. Peirson 1932-7-13 s.n. Shasta In Big Meadow, Thousand-Lake Basin. 1951 Comment
  RSA0125964  Boechera F. W. Peirson 1932-7-12 10154 Shasta Rim of Red Crater. Thousand-Lake Basin. 1982 Comment
  RSA0129806  Arabis platysperma F. W. Peirson 1932-7-10 10153 Shasta Thousand-Lake Basin. 1951 Comment
  RSA100330  Campanula prenanthoides F. W. Peirson 1932-7-17 10338 Shasta Wallace Ranch, Goose Velley. 915 Comment
  RSA100335  Heterocodon rariflorum F. W. Peirson 1932-7-17 10332 Shasta Wallace Ranch, Goose Valley 915 Comment
  RSA63739  Erythronium purpurascens Frank W. Peirson 1926-6-23 6844 Shasta Trail to summit of Lassen Peak, Lassen National Park Comment
  RSA65044  Silene lemmonii F. W. Peirson 1932-7-9 10272 Shasta Burney Spring. 1433 Comment
  RSA65540  Arenaria congesta F. W. Peirson 1932-7-11 10145 Shasta Thousand Lake Basin. The interlake region. Comment
  RSA65675  Lewisia triphylla F. W. Peirson 1932-7-11 10143 Shasta Forest floor of the interlake region, Thousand Lake Basin. 1951 Comment
  RSA65681  Lewisia nevadensis F. W. Peirson 1932-7-15 10142 Shasta Shasta County: along stream flowing E from Magee, Thousand Lake Basin 2134 Comment
  RSA65699  Silene douglasii var. douglasii F. W. Peirson 1932-7-11 10144 Shasta Thousand-Lake Basin. 1951 Comment
  RSA65858  Polygonum minimum F. W. Peirson 1932-7-14 10138 Shasta Thousand Lake Basin. 1951 Comment
  RSA65903  Eriogonum ursinum F. W. Peirson 1932-7-12 10141 Shasta along the rim of Red Crater, in volcanic soil Thousand Lake Basin. 1982 Comment
  RSA65905  Eriogonum ursinum F. W. Peirson 1926-6-22 6806 Shasta sandy stream-bottom lands, 2 or 3 mil below end of road, but still in National Park. Drakesbad Region, Lassen National Park. Comment
  RSA65931  Polygonum davisiae F. W. Peirson 1926-6-23 6841 Shasta Trail to summit of Lassen Peak, Lassen National Park Comment
  RSA65955  Eriogonum umbellatum var. polyanthum F. W. Peirson 1932-7-16 10303 Shasta 1 mi. above Burney Spring, on road to Thousand- Lake Basin. 1463 Comment
  RSA66017  Eriogonum nudum var. pubiflorum F. W. Peirson 1932-7-18 10341 Shasta Rocky Camp' on Hat Creek 1159 Comment
  RSA66022  Eriogonum nudum var. pubiflorum F. W. Peirson 1932-7-12 10139 Shasta Red Crater, Thousand-Lake Basin 1951 Comment
  RSA66164  Erysimum capitatum var. capitatum F. W. Peirson 1932-7-13 10150 Shasta Near Big Meadow, Thousand-Lake Basin. 1951 Comment
  RSA66230  Arabis suffrutescens F. W. Peirson 1932-7-11 10151 Shasta Forest floor of the interlake region. Thousand-lake Basin. 1951 Comment
  RSA66248  Arabis sparsiflora F. W. Peirson 1932-7-11 10152 Shasta Forest floor of the interlake region, Thousand Lake Basin. 1951 Comment
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Feb 6 2009
  RSA66580  Lesquerella occidentalis F. W. Peirson 1926-6-23 6837 Shasta Trail to summit of Lassen Peak, Lassen National Park. Comment
  RSA66691  Dicentra uniflora F. W. Peirson 1932-7-15 10156 Shasta Along stream from Mt Magee, Thousand-Lake Basin. 2134 Comment
  RSA66729  Galium bolanderi F. W. Peirson 1932-7-16 10300 Shasta Burney Spring. 1433 Comment
  RSA68712  Lilium washingtonianum Frank W. Peirson 1932-7-16 10126 Shasta Trail to Thousand-Lake Basin 1921 Comment
  RSA68719  Fritillaria atropurpurea Frank W. Peirson 10125 Shasta Thousand-Lake Basin 1951 Comment
  RSA69279  Maianthemum racemosum subsp. amplexicaule Frank W. Peirson 1932-7-14 10128 Shasta Base of Eiler Butte (the elevation east of Lake Eiler), Thousand-Lake Basin 1951 Comment
  RSA69283  Tofieldia glutinosa subsp. occidentalis F. W. Peirson 1926-6-23 6840 Shasta Trail to summit of Lassen Peak, from Drakesbad [Plumas Co. line], Lassen National Park Comment
  RSA69402  Delphinium nuttallianum F. W. Peirson 1932-7-12 10147 Shasta damp shade along trail, Thousand Lake Basin. 1951 Comment
  RSA69405  Delphinium nuttallianum F. W. Peirson 1926-6-22 6820 Shasta Trail to Devils Kitchen, Drakesbad, Lassen National Park Comment
  RSA69504  Luzula comosa var. laxa F. W. Peirson 1932-7-12 10124 Shasta Thousand-Lake Basin. 1951 Comment
  RSA69509  Veratrum californicum Frank W. Peirson 1932-7-13 10127 Shasta In Big Meadow, Thousand-Lake Basin. 1951 Comment
  RSA69516  Smilax californica Frank W. Peirson 1932-7-17 10337 Shasta Wallace Ranch. Goose Valley. 915 Comment
  RSA69540  Hastingsia alba Frank W. Peirson 1932-7-17 10325 Shasta Wallace Ranch. Goose Valley. 915 Comment
  RSA69600  Sagittaria cuneata F. W. Peirson 1932-7-14 10105 Shasta Thousand-Lake Basin. 1951 Comment
  RSA69604  Sagittaria latifolia F. W. Peirson 1932-7-17 10326 Shasta Wallace Ranch. Goose Valley. 915 Comment
  RSA69631  Juncus mexicanus F. W. Peirson 1932-7-10 10120 Shasta Thousand-Lake Basin. 1951 Comment
  RSA69713  Mentzelia dispersa F. W. Peirson 1932-7-14 10186 Shasta On slope near south end of Lake Eiler, Thousand-Lake Basin. 1951 Comment
  RSA69714  Mentzelia dispersa F. W. Peirson 1932-7-9 10275 Shasta Burney Spring. 1433 Comment
  RSA69850  Platanthera leucostachys Frank W. Peirson 1932-7-17 10318 Shasta Wallace Ranch. Goose Valley. 915 Comment
  RSA69935  Apocynum androsaemifolium subsp. pumilum F. W. Peirson 1932-7-12 10198 Shasta Thousand Lake Basin, along rim of Red Crater 2012 Comment
  RSA70047  Corallorhiza maculata Frank W. Peirson 1932-7-12 10131 Shasta Thousand-Lake Basin. 1951 Comment
  RSA70067  Piperia unalascensis Frank W. Peirson 1932-7-12 10132 Shasta Thousand-Lake Basin. 1951 Comment
  RSA70150  Triteleia hyacinthina F. W. Peirson 1932-7-9 10286 Shasta Burney Spring. 1433 Comment
  RSA70253  Allium obtusum var. obtusum F. W. Peirson 1926-6-23 6839 Shasta Lassen National Park. Central to upper portion of trail to summit of Lassen Peak. Comment
  RSA70293  Juncus mertensianus F. W. Peirson 1932-7-15 10122 Shasta Shasta County: E slope of Magee, Thousand Lake Basin 2195 Comment
  RSA70329  Asclepias cordifolia F. W. Peirson 1932-7-12 s.n. Shasta Thousand Lake Basin 2012 Comment
  RSA70360  Cycladenia humilis F. W. Peirson 1932-7-12 s.n. Shasta Thousand Lake Basin 2012 Comment
  RSA70367  Calochortus nudus Frank W. Peirson 1932-7-12 10130 Shasta Trail below camp; Thousand-Lake Basin. 1951 Comment
  RSA70448  Allium campanulatum F. W. Peirson 1932-7-12 10129 Shasta Trail below camp; Thousand-Lake Basin. 1951 Comment
  RSA70551  Euphorbia crenulata F. W. Peirson 1932-7-9 10277 Shasta Burney Spring. 1433 Comment
  RSA71906  Ipomopsis aggregata subsp. formosissima F. W. Peirson 1932-7-13 10203 Shasta Near Big Meadow, Thousand-Lake Basin 1951 Comment
  RSA71915  Gilia capitata F. W. Peirson 1932-7-17 10328 Shasta Wallace Ranch, Goose Valley 915 Comment
  RSA72105  Epilobium hallianum F. W. Peirson 1932-7-14 10187 Shasta West of Lake Eiler, Thousand Lake Basin 1951 Comment
  RSA72141  Gayophytum heterozygum F. W. Peirson 1932-7-18 10342 Shasta Rocky Camp on Hat Creek 1159 Comment
  RSA72146  Gayophytum heterozygum F. W. Peirson 1932-7-16 10409 Shasta Lake Eiler, Thousand-Lake Basin 1951 Comment
  RSA72151  Gayophytum humile F. W. Peirson 1932-7-14 10188 Shasta Thousand-Lake Basin. 1951 Comment
  RSA72303  Navarretia leptalea F. W. Peirson 1932-7-9 10288 Shasta Burney Spring. 1433 Comment
  RSA72632  Wyethia mollis F. W. Peirson 1932-7-15 10232 Shasta Below camp, Thousand Lake Basin. 1951 Comment
  RSA72651  Helianthella californica var. nevadensis F. W. Peirson 1932-7-16 10301 Shasta On trail to Thousand-Lake Basin. 1524 Comment
  RSA72652  Helianthella californica var. nevadensis F. W. Peirson 1926-6-23 6834 Shasta Lower portion of trail to summit of Lassen Peak. Lassen National Park. Comment
  RSA73020  Leptosiphon harknessii F. W. Peirson 1932-7-9 10287 Shasta Burney Spring. 1433 Comment
  RSA73292  Linanthus pungens subsp. hookeri F. W. Peirson 1932-7-11 10202 Shasta Summit of rocky ridge south of Mt. Magee, Thousand-Lake Basin 2256 Comment
  RSA73355  Clarkia rhomboidea F. W. Peirson 1932-7-9 10281 Shasta Burney Spring. 1433 Comment
  RSA73734  Navarretia intertexta F. W. Peirson 1932-7-16 10311 Shasta Burney Spring. 1433 Comment
  RSA74490  Phacelia mutabilis F. W. Peirson 1932-7-9 10291 Shasta Burney Spring. 1433 Comment
  RSA74850  Phacelia frigida subsp. frigida F. W. Peirson 1926-6-23 6838 Shasta Upper portion of trail to summit of Lassen Peak. Lassen National Park. Comment
  RSA74856  Phacelia heterophylla subsp. virgata F. W. Peirson 1932-7-17 10321 Shasta Wallace Ranch, Goose Valley. 915 Comment
  RSA77492  Cicuta douglasii F. W. Peirson 1932-7-17 10320 Shasta moist shaded places, Wallace Ranch, Goose Velley. 915 Comment
  RSA77498  Angelica californica F. W. Peirson 1932-7-17 10334 Shasta moist shaded places, Wallace Ranch, Goose Velley. 915 Comment
  RSA77744  Viola purpurea subsp. integrifolia F. W. Peirson 1932-7-15 10185 Shasta Along stream from Mt Magee, Thousand-Lake Basin. 2134 Comment
  RSA77745  Viola bakeri F. W. Peirson 1932-7-13 10183 Shasta Near Big Meadow, Thousand-Lake Basin. 1951 Comment
  RSA77828  Hackelia californica F. W. Peirson 1932-7-11 10206 Shasta West of Lake Eiler, Thousand-Lake Basin. 1951 Comment
  RSA78532  Carex nebrascensis F. W. Peirson 1932-7-17 13588 Shasta moist shaded places, Wallace Ranch, Goose Velley. 915 Comment
  RSA78643  Asarum hartwegii F. W. Peirson 1932-7-14 13546 Shasta 1000-Lake Basin, Growing near camp on Lake Eiler 1951 Comment
  RSA78645  Chimaphila menziesii F. W. Peirson 1932-7-14 13547 Shasta 1000-Lake Basin 1951 Comment
  RSA79464  Collinsia torreyi var. latifolia F. W. Peirson 1932-7-9 10295 Shasta Burney Spring. 1433 Comment
  RSA79465  Collinsia torreyi F. W. Peirson 1932-7-12 10209 Shasta Along rim of Red Crater. Thousand Lake Basin. Sierra Nevada. 2012 Comment
  RSA79636  Cryptantha affinis F. W. Peirson 1932-7-14 10205 Shasta Thousand-Lake Basin. 1951 Comment
  RSA79836  Penstemon gracilentus F. W. Peirson 1932-7-10 10220 Shasta Thousand-Lake Basin. 1951 Comment
  RSA79873  Penstemon speciosus F. W. Peirson 1932-7-9 10294 Shasta Burney Spring. 1433 Comment
  RSA79983  Castilleja payneae F. W. Peirson 1926-6-23 6836 Shasta Trail to summit of Lassen Peak, Lassen National Park. Comment
  RSA80074  Mimulus torreyi F. W. Peirson 1932-7-9 10293 Shasta Burney Spring. 1433 Comment
  RSA80081  Mimulus breweri F. W. Peirson 1932-7-13 10213 Shasta Thousand-Lake Basin 1951 Comment
  RSA80106  Erythranthe pulsiferae F. W. Peirson 1932-7-17 10329 Shasta Wallace Ranch, Goose Valley 915 Comment
  RSA80141  Mimulus guttatus F. W. Peirson 1932-7-17 10330 Shasta Wallace Ranch, Goose Valley. 915 Comment
  RSA80215  Plagiobothrys hispidus F. W. Peirson 1932-7-16 10315 Shasta Burney Spring. Forest Border near old log cabin Comment
  RSA80218  Plagiobothrys scouleri var. hispidulus F. W. Peirson 1932-7-9 10290 Shasta Below Burney Spring. 1433 Comment
  RSA80327  Orthocarpus imbricatus F. W. Peirson 1932-7-11 10215 Shasta Thousand Lake Basin. The interlake region. 1951 Comment
  RSA80333  Orthocarpus hispidus F. W. Peirson 1932-7-17 10333 Shasta Wallace Ranch, Goose Velley. 915 Comment
  RSA80836  Pedicularis semibarbata F. W. Peirson 1932-7-10 10216 Shasta Interlake region, Thousand-Lake Basin. 1951 Comment
  RSA81486  Castilleja payneae F. W. Peirson 1932-7-13 10214 Shasta 1000-Lake Basin. 1951 Comment
  RSA82241  Castilleja miniata F. W. Peirson 1932-7-14 10210 Shasta Thousand-Lake Basin. 1951 Comment
  RSA82319  Scutellaria antirrhinoides F. W. Peirson 1932-7-17 10327 Shasta Wallace Ranch, Goose Valley. 915 Comment
  RSA82340  Scutellaria californica F. W. Peirson 1932-7-9 10283 Shasta Burney Spring. 1433 Comment
  RSA82369  Agastache parvifolia F. W. Peirson 1932-7-17 10340 Shasta Road below Burney Spring. 1067 Comment
  RSA82585  Stachys ajugoides F. W. Peirson 1932-7-17 10319 Shasta Wallace Ranch. Goose Valley. 915 Comment
  RSA83431  Pycnanthemum californicum F. W. Peirson 1932-7-17 10317 Shasta Wallace Ranch, Goose Valley Comment
  RSA84278  Ranunculus alismifolius var. hartwegii F. W. Peirson 1932-7-15 10149 Shasta E slope of Magee, Thousand Lake Basin 2195 Comment
  RSA84314  Isoetes bolanderi F. W. Peirson 1932-7-16 10102 Shasta Small pond just separated from Lake Eiler, Thousand-Lake Basin. 1951 Comment
  RSA84407  Ranunculus alismifolius var. alismellus F. W. Peirson 1926-6-23 6842 Shasta Trail to summit of Lassen Peak, Lassen National Park Comment
  RSA84409  Ranunculus alismifolius var. alismellus F. W. Peirson 1932-7-13 10148 Shasta Thousand-Lake Basin 1951 Comment
  RSA85001  Athyrium americanum F. W. Peirson 1932-7-15 10101 Shasta Along the stream descending from Magee Peak, Thousand Lake Basin. 2287 Comment
  RSA85215  Horkelia tridentata F. W. Peirson 1932-7-14 10169 Shasta Thousand Lake Basin. 1951 Comment
  RSA85312  Paeonia brownii F. W. Peirson 1932-7-16 10312 Shasta Burney Spring. 1433 Comment
  RSA85688  Potentilla fruticosa F. W. Peirson 1932-7-13 10172 Shasta In the Big Meadow, Thousand-Lake Basin. 1951 Comment
  RSA85744  Potentilla flabellifolia F. W. Peirson 1926-6-23 6830 Shasta Trail to summit of Lassen Peak, Lassen National Park. Comment
  RSA85746  Potentilla flabellifolia F. W. Peirson 1932-7-15 10167 Shasta Wet margin of lake of lake on west slope of Mt. Magee, Thousand-Lake Basin 2195 Comment
  RSA85764  Sibbaldia procumbens F. W. Peirson 1932-7-15 10168 Shasta On E slope of Mt. Magee. Thousand Lake Basin. 2195 Comment
  RSA85828  Cupressus macnabiana F. W. Peirson 1932-7-16 10302 Shasta At end of road going to Thousand-Lake Basin 1524 Comment
  RSA86659  Sanguisorba annua F. W. Peirson 1932-7-9 10276 Shasta Below Burney Spring. 1433 Comment
  RSA87185  Lupinus angustiflorus F. W. Peirson 1932-7-19 10344 Shasta Mt. Lassen, Mt. Lassen National Park. 1829 Comment
  RSA87212  Lupinus angustiflorus F. W. Peirson 1932-7-11 10175 Shasta Thousand-Lake Basin. 1951 Comment
  RSA87213  Lupinus albicaulis var. shastensis F. W. Peirson 1932-7-16 10310 Shasta Burney Spring 1433 Comment
  RSA87231  Lupinus lyallii var. lyallii F. W. Peirson 1932-7-11 10174 Shasta Forest floor of the interlake region. Thousand-lake Basin, Shasta Co. 1951 Comment
  RSA87322  Galium aparine var. echinospermum F. W. Peirson 1932-7-9 10299 Shasta Burney Spring. 1433 Comment
  RSA87398  Lupinus sellulus subsp. sellulus F. W. Peirson 1932-7-9 10278 Shasta Burney Spring 1433 Comment
  RSA87418  Lupinus polyphyllus subsp. polyphyllus F. W. Peirson 1932-7-17 10324 Shasta Wallace Ranch, Goose Valley. Comment
  RSA88674  Carex lenticularis var. lipocarpa F. W. Peirson 1932-7-12 10118 Shasta N slope of Red Crater. Thousand Lake Basin. 1982 Comment
  RSA88727  Carex luzulina var. ablata F. W. Peirson 1932-7-13 10114 Shasta In the Big Meadow, thousand-Lake Basin 1951 Comment
  RSA88796  Carex whitneyi F. W. Peirson 1932-7-13 10113 Shasta Dry places southwest of Red Crater, Thousand-Lake Basin. 1951 Comment
  RSA88846  Carex subfusca F. W. Peirson 1932-7-9 10865 Shasta Below Burney Spring. 1433 Comment
  RSA91051  Carex preslii F. W. Peirson 1932-7-15 10117 Shasta At east foot of Magee, Thousand-Lake Basin. 2195 Comment
  RSA91054  Carex multicostata F. W. Peirson 1932-7-12 10110 Shasta Thousand-Lake Basin. 1951 Comment
  RSA91183  Lupinus arbustus subsp. silvicola F. W. Peirson 1926-6-22 6815 Shasta From Drakesbad to summit, Mt. Lassen National Park. Comment
  RSA91347  Lupinus leucophyllus F. W. Peirson 1932-7-9 10279 Shasta Burney Spring. 1433 Comment
  RSA91384  Hesperolinon micranthum F. W. Peirson 1932-7-8 10264 Shasta Hill Crest Au to Camp on the Redding to Burney Road. 1006 Comment
  RSA91452  Trifolium longipes subsp. elmeri F. W. Peirson 1932-7-12 10176 Shasta Thousand-Lake Basin. 1951 Comment
  RSA91575  Trifolium productum F. W. Peirson 1932-7-13 10177 Shasta Thousand Lake Basin Comment
  RSA91648  Carex vesicaria F. W. Peirson 1932-7-10 10116 Shasta Margin of Lake Eiler, Thousand-Lake Basin. 1951 Comment
  RSA91668  Achnatherum occidentale subsp. californicum F. W. Peirson 1932-7-9 10265 Shasta Below Burney Spring 1433 Comment
  RSA91693  Bromus orcuttianus F. W. Peirson 1932-7-16 10304 Shasta Burney Spring 1433 Comment
  RSA91734  Achnatherum occidentale subsp. californicum F. W. Peirson 1932-7-13 10104 Shasta Thousand-Lake Basin 1982 Comment
  RSA91849  Danthonia californica var. americana F. W. Peirson 1932-7-14 10107 Shasta in Big Meadow south of Lake Eiler, Thousand-Lake Basin 1951 Comment
  RSA91972  Elymus X hansenii F. W. Peirson 1932-7-14 10103 Shasta Thousand-Lake Basin 1951 Comment
  RSA92085  Eleocharis acicularis var. acicularis F. W. Peirson 1932-7-16 10108 Shasta Near camp at Thousand-Lakes Basin 1951 Comment
  RSA92099  Carex nebrascensis F. W. Peirson 1932-7-9 10270 Shasta Below Burney Spring 1433 Comment
  RSA92141  Schoenoplectus acutus var. occidentalis F. W. Peirson 1932-7-17 10339 Shasta Wallace Ranch. Goose Valley. 915 Comment
  RSA92161  Schoenoplectus acutus var. occidentalis F. W. Peirson 1932-7-14 10109 Shasta West of Lake Eiler, Thousand Lake Basin 1951 Comment
  RSA92236  Madia minima F. W. Peirson 1932-7-9 10298 Shasta Burney Spring. 1433 Comment
  RSA92290  Eriophyllum lanatum var. achilleoides F. W. Peirson 1932-7-16 10305 Shasta Below the old log cabin; Burney Spring 1433 Comment
  RSA92650  Salix scouleriana F. W. Peirson 1932-7-12 10135 Shasta N slope of Red Crater. Thousand Lake Basin. 1982 Comment
  RSA92713  Salix lemmonii F. W. Peirson 1932-7-12 10134 Shasta Along shore of Lake Eiler. Thousand-Lake Basin. 1951 Comment
  RSA92845  Madia glomerata F. W. Peirson 1932-7-9 10297 Shasta Burney Springs, 1433 Comment
  RSA93094  Erigeron philadelphicus F. W. Peirson 1932-7-16 10313 Shasta Near stream from Burney Springs 1433 Comment
  RSA93186  Erigeron inornatus var. inornatus F. W. Peirson 1932-7-17 10336 Shasta Wallace Ranch, Goose Valley. 915 Comment
  RSA93239  Aster occidentalis var. occidentalis F. W. Peirson 1932-7-12 10230 Shasta Along shore of Lake Eiler. Thousand-Lake Basin. 1951 Comment
  RSA93338  Kelloggia galioides F. W. Peirson 1932-7-14 10222 Shasta Thousand-Lake Basin. 1951 Comment
  RSA93391  Symphoricarpos acutus F. W. Peirson 1932-7-16 10224 Shasta Thousand-Lake Basin. 1951 Comment
  RSA93396  Cephalanthus occidentalis F. W. Peirson 1923-7-20 3859 Shasta 10 miles S of Redding. Comment
  RSA93634  Antennaria corymbosa F. W. Peirson 1932-7-15 10231 Shasta On E slope of Mt. Magee. Thousand Lake Basin. 2195 Comment
  RSA93796  Chaenactis douglasii var. douglasii F. W. Peirson 1932-7-12 10233 Shasta Slopes of Red Crater, Thousand-Lake Basin 1951 Comment
  RSA94622  Arnica dealbata F. W. Peirson 1932-7-14 10236 Shasta Thousand-Lake Basin. 1951 Comment
  RSA94623  Whitneya dealbata F. W. Peirson 1926-6-23 6833 Shasta Trail to summit of Lassen Peak, Lassen National Park Comment
  RSA94843  Senecio triangularis F. W. Peirson 1932-7-16 10234 Shasta Lake borders in Thousand-Lake Basin. 1951 Comment
  RSA95154  Hieracium horridum F. W. Peirson 1932-7-14 10228 Shasta South slope of Eiler Butte, Thousand-Lake Basin. 1982 Comment
  RSA95166  Hieracium scouleri F. W. Peirson 1932-7-9 10296 Shasta Burney Spring. 1433 Comment
  RSA95227  Stephanomeria lactucina F. W. Peirson 1932-7-16 10229 Shasta Along trail below camp and Thousand-Lake Basin. 1951 Comment
  RSA95256  Sidalcea oregana subsp. spicata F. W. Peirson 1932-7-9 10273 Shasta Below Burney Spring 1433 Comment
  RSA95258  Sidalcea oregana subsp. spicata F. W. Peirson 1932-7-17 10323 Shasta Wallace Ranch, Goose Valley 915 Comment
  RSA95264  Sidalcea oregana subsp. spicata F. W. Peirson 1932-7-13 10182 Shasta Big Meadow, Thousand-Lake Basin. 1951 Comment
  RSA95279  Ceanothus velutinus F. W. Peirson 1932-7-10 10181 Shasta Interlake Area, Thousand-Lake Basin. 1951 Comment
  RSA95296  Rhamnus rubra subsp. obtusissima F. W. Peirson 1932-7-13 10179 Shasta SW of Red Crater, Thousand-Lake Basin 1951 Comment
  RSA95297  Rhamnus purshiana F. W. Peirson 1932-7-17 10335 Shasta Wallace Ranch, Goose Velley. 915 Comment
  RSA95343  Asarum hartwegii F. W. Peirson 1932-7-9 10280 Shasta Burney Spring. 1433 Comment
  RSA97454  Arceuthobium americanum F. W. Peirson 1932-7-14 10136 Shasta Thousand-Lake Basin. 1951 Comment
  RSA97456  Osmorhiza berteroi F. W. Peirson 1932-7-13 10189 Shasta Thousand-Lake Basin 1951 Comment
  RSA97464  Perideridia parishii subsp. latifolia F. W. Peirson 1922-7-13 10190 Shasta Big Meadow, Thousand-Lakes Basin 1951 Comment
  RSA99345  Sambucus caerulea F. W. Peirson 1932-7-13 10226 Shasta South of Big Meadow, Thousand-Lake Basin 2012 Comment
  RSA99347  Sambucus microbotrys F. W. Peirson 1932-7-14 10227 Shasta Eiler Butte, Thousand-Lake Basin 1951 Comment
  RSA99354  Symphoricarpos vaccinioides F. W. Peirson 1932-7-11 10225 Shasta Forest borders about the lakes, Thousand-Lake Basin. Comment
  RSA99368  Lonicera conjugialis F. W. Peirson 1932-7-12 10223 Shasta Thousand-Lake Basin. Comment
  SD87698  Mentzelia montana Frank W. Peirson 1932-7-14 10186 Shasta At south end of the ridge east of Lake Eiler. 1951 Comment
  SD87713  Pedicularis semibarbata Frank W. Peirson 1932-7-10 10216 Shasta 1000-Lake Basin 1951 Comment
  SD87856  Erythronium purpurascens Frank W. Peirson 1926-6-23 6844 Shasta Mount Lassen, extremely abundant on banks about the meadows and wood borders. Comment
  SD87881  Trifolium kingii Frank W. Peirson 1932-7-13 10177 Shasta 1000 lake basin, south of Burney 1951 Comment
  SEINET10462946  Campanula prenanthoides Frank W. Peirson 1932-7-17 Peirson 10338 Shasta On edge of marshy field, Wallace Ranch, Goose Valley 914 Comment
  SEINET10972517  Heterocodon rariflorum Frank W. Peirson 1932-7-17 Peirson 10332 Shasta WET PLACES AT BORDER OF MARSHY FIELD, WALLACE R., GOOSE VALLEY Comment
  SEINET3836450 Image available Eriogonum baileyi var. baileyi Frank W. Peirson 1934-7-8 Shasta Whiskey Creek Comment
  SEINET7577166 Image available Carex subfusca Frank W. Peirson 1932-7-9 10865 Shasta Burney Spring. 1433 Comment
  UC501490  Kopsiopsis strobilacea Frank W. Peirson 1932-7-11 10221 Shasta Slopes of Mt. Magee, edge of 1000-Lake Basin. Comment
  UC501593  Hesperolinon micranthum Frank W. Peirson 1932-7-8 10264 Shasta on the Redding-Burney Road Hill Crest Auto Camp 1005 Comment



  Copyright © 2019 Regents of the University of California — Updated 11 January 2019
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