Search Results — 2000 specimen records retrieved (1743 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

 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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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CLARK-A1528-2964  Elodea nuttallii John C. Roos 1968-8-27 Fresno Sierra Nevada 3200 Comment
  POM265630  Atriplex minuscula J. C. Roos 1940-6-8 1910 Fresno 25 miles west of Fresno Comment
  UCR24380  Salix arctica John C. Roos 1965-8-8 s.n. Fresno Sierra Nevada Mtns., Kearsarge Lake. Middle Section of Kings Canyon National Park 3354 Comment
  UCR24410  Castilleja lemmonii John C. Roos 1965-8-8 s.n. Fresno Sierra Nevada Mtns., Kearsarge Lake. Middle Section of Kings Canyon National Park 3354 Comment
  UCR25298  Astragalus asymmetricus John C. Roos 1940-6-8 1909 Fresno San Joaquin Valley, about 25 mi west of Fresno Comment
  CLARK-A1528-1013  Machaeranthera tephrodes John C. Roos 1949-4-7 4175 Imperial Winterhaven 39 Comment
  CLARK-A1528-2734  Astragalus crotalariae John C. Roos 1949-4-6 4156 Imperial Salton Sea Comment
  CLARK-A1528-2774  Dalea spinosa John C. Roos 1937-6-10 2016 Imperial Coyote Wells Comment
  CLARK-A1528-3133  Teucrium depressum John C. Roos 1949-4-8 4201 Imperial Palo Verde Valley Comment
  CLARK-A1528-4787  Panicum urvilleanum John C. Roos 1949-4-7 4177 Imperial Comment
  CLARK-A1528-5026  Mirabilis froebelii John C. Roos 1937-6-7 1454 Imperial Coyote Wells Comment
  CLARK-A1528-5030  Eustoma exaltatum John C. Roos 1937-6-9 1451 Imperial Westmorland Comment
  CLARK-A1528-5143  Horsfordia newberryi John C. Roos 1949-4-6 4151 Imperial Chocolate Mountains 121 Comment
  CLARK-A1528-5197  Pilostyles thurberi John C. Roos 1963-6-1 Imperial Comment
  CLARK-A1528-7809  Phacelia minutiflora John C. Roos 1949-4-8 4193 Imperial Milpitas Wash Comment
  RSA659178  Eriogonum deserticola J. C. Roos 1947-4-7 4178 Imperial Sand dunes about 45 miles S.E. of Niland. Comment
  RSA659179  Lotus strigosus var. tomentellus J. C. Roos 1952-3-28 659179 Imperial Truck Haven along west side Salton Sea. 0 Comment
  RSA659471  Dalea mollis J. C. Roos 1952-3-28 5428 Imperial Truck Haven along west side Salton Sea. 0 Comment
  UCR18746  Machaeranthera asteroides John C. Roos 1949-4-7 4175 Imperial Sonoran (Colorado) Desert, Lower Colorado River Valley, near Winterhaven 40 Comment
  UCR18907  Pilostyles thurberi John C. Roos 1963-6-1 s.n. Imperial Sonoran (Colorado) Desert, 0.6 mi. SE of San Felipe Wash bridge on Hwy 99 (=86), near Kane Spring -55 Comment
  UCR26302  Nama hispida John C. Roos 1949-4-8 4197 Imperial Sonoran (Colorado) Desert, Milpitas Wash. Comment
  CAS-BOT-BC100578  Brickellia longifolia var. multiflora J. C. Roos; A. R. Roos 1953-8-14 6032 Inyo Mazourka Canyon, Inyo Mts. 1767 Comment
  CAS-BOT-BC100620  Brickellia oblongifolia var. linifolia John Roos; Lucille Roos 1947-7-15 2868 Inyo Wild Rose Canyon, Panamint Mts. 2133 Comment
  CAS-BOT-BC100736  Chrysothamnus viscidiflorus subsp. puberulus John Roos; Lucille Roos 1947-7-11 2843 Inyo Mahogany Flats, Panamint Mts. 2468 Comment
  CAS-BOT-BC100809  Chrysothamnus viscidiflorus subsp. viscidiflorus J. C. Roos; A. R. Roos 1955-8-25 6544 Inyo along California-Nevada boundary 2 miles NE of Willow Spring, Last Chance Mts. 2072 Comment
  CAS-BOT-BC105974  Chrysothamnus viscidiflorus subsp. viscidiflorus John Roos; Lucille Roos 1951-8-8 5113 Inyo southeast rim Reed Flat, White Mts. 3078 Comment
  CAS-BOT-BC131494  Ericameria albida John Roos; Lucille Roos 1953-10-31 6034 Inyo Amargosa River bed 3 miles south of Shoshone 441 Comment
  CAS-BOT-BC136958  Cercocarpus ledifolius var. intricatus J. C. Roos 1955-6-19 6452 Inyo Summit ridge of Last Chance Mountains 2 miles west of Last Chance Spring 2560 Comment
  CAS-BOT-BC148490  Cercocarpus ledifolius var. ledifolius J. C. Roos; A. R. Roos 1953-8-13 6009 Inyo Tamarack Canyon, Inyo Mts. 2743 Comment
  CAS-BOT-BC186870  Astragalus gilmanii John Roos; Lucille Roos 1947-7-13 2887 Inyo Arcane Meadows, Panamint Mts. 3048 Comment
  CAS-BOT-BC192811  Astragalus platytropis J. C. Roos; A. R. Roos 1953-8-9 5961 Inyo Near head of Tamarack Canyon, Inyo Mts. 3078 Comment
  CAS-BOT-BC211144  Lomatium foeniculaceum subsp. inyoense John Roos; Lucille Roos 1954-6-24 6149 Inyo Crest of Inyo Mts. 3 miles east of Badger Flat in headwaters of Marble Canyon Watershed 3169 Comment
  CAS-BOT-BC218069  Achnatherum pinetorum J. C. Roos; A. R. Roos 1953-8-8 5939 Inyo Badger Flat 2651 Comment
  CAS-BOT-BC218079  Achnatherum pinetorum J. C. Roos; A. R. Roos 1953-8-8 5939 Inyo Badger Flat, Inyo Mountains 2651 Comment
  CAS-BOT-BC221889  Swallenia alexandrae John C. Roos 1955-5-13 6352 Inyo Southeast end Eureka Valley 944 Comment
  CAS-BOT-BC221890  Swallenia alexandrae John Roos; Lucille Roos 1954-6-28 6175 Inyo At SE end Eureka Valley 929 Comment
  CAS-BOT-BC221899  Swallenia alexandrae John C. Roos 1955-5-13 6365 Inyo West side Eureka Valley at mouth of Marble Canyon 1036 Comment
  CAS-BOT-BC236239  Poa secunda subsp. juncifolia J. C. Roos; A. R. Roos 1953-8-11 6000 Inyo Pass 3 miles E of Blue Bell Mine on trail to Side Hill Spring, Inyo Mountains 3078 Comment
  CAS-BOT-BC238193  Cordylanthus tecopensis John Roos; Lucille Roos 1954-9-14 6231 Inyo Flats along Margosa River bottom 3 miles south of Shoshone 432 Comment
  CAS-BOT-BC238198  Cordylanthus tecopensis John Roos; Lucille Roos 1954-9-14 6231 Inyo Flats along Amargosa River bottom 3 miles south of Shoshone 432 Comment
  CAS-BOT-BC241850  Eriogonum caespitosum John Roos; Lucille Roos 1952-7-27 5827 Inyo West rim Reed Flat, White Mts. 3108 Comment
  CAS-BOT-BC248007  Chorizanthe watsonii J. C. Roos 1955-6-18 6421 Inyo 2 miles NE of Willow Spring, Last Chance Mountains 2011 Comment
  CAS-BOT-BC258754  Eriogonum ovalifolium var. ovalifolium J. C. Roos 1955-6-17 6405 Inyo 2 miles NE of Willow Spring, Last Chance Mountains 2011 Comment
  CAS-BOT-BC266930  Eriogonum panamintense var. mensicola J. C. Roos 1955-7-24 6521 Inyo Nelson Range near head of Grapevine Canyon 1889 Comment
  CAS-BOT-BC268573  Eriogonum shockleyi J. C. Roos 1955-7-21 6484 Inyo Whitetop Peak, summit Last Chance Mountains 2560 Comment
  CAS-BOT-BC269657  Symphoricarpos longiflorus John Roos; Lucille Roos 1947-7-12 2838 Inyo Wild Rose [Wildrose] Canyon on north side Baldy Peak, Panamint Mts. 2377 Comment
  CAS-BOT-BC292385  Ericameria nana J. C. Roos; A. R. Roos 1955-8-24 6538 Inyo Summit ridge of Last Chance Mts, 3.5 miles S of Willow Spring 2438 Comment
  CAS-BOT-BC294941  Erigeron clokeyi J. C. Roos 1955-7-21 6482 Inyo North face Whitetop Peak, summit Last Chance Mountains Comment
  CAS-BOT-BC298985  Ericameria nauseosa var. hololeuca J. C. Roos; A. R. Roos 1955-8-24 6543 Inyo Last Chance Mts. 1 mile NE of Willow Spring 1859 Comment
  CAS-BOT-BC328113  Perityle megalocephala var. megalocephala J. C. Roos; A. R. Roos 1953-8-10 5979 Inyo Mazourka Canyon, Inyo Mountains 2499 Comment
  CAS-BOT-BC33657  Eriogonum glandulosum John C. Roos; A. R. Roos 1955-8-23 6527 Inyo West base Last Chance Mts. east of Eureka Valley sand dunes. 1158 Comment
  CAS-BOT-BC362198  Pyrrocoma apargioides John Roos; Lucille Roos 1951-8-8 5111 Inyo Reed Flat, White Mts. 3169 Comment
  CAS-BOT-BC375027  Stenotus acaulis J. C. Roos 1955-6-19 6445 Inyo Summit ridge Last Chance Mountains 2 miles west of Last Chance Spring 2529 Comment
  CAS-BOT-BC375028  Stenotus acaulis J. C. Roos; A. R. Roos 1953-8-9 5969 Inyo SE of head of Tamarack Canyon, Inyo Mts. 3230 Comment
  CAS-BOT-BC60709  Physaria kingii subsp. kingii John Roos; Lucille Roos 1952-7-26 5821 Inyo East side Reed Flat, White Mountains. 3048 Comment
  CAS-BOT-BC61309  Streptanthus cordatus var. cordatus John Roos; Lucille Roos 1947-7-11 2841 Inyo Mahogany Flats. Panamint Mountains. 2499 Comment
  CAS-BOT-BC92261  Cleomella brevipes John C. Roos; Alfred R. Roos 1954-8-15 6225 Inyo Lower Warm Spring, Saline Valley. 426 Comment
  CAS-BOT-BC93342  Ribes cereum John Roos; Lucille Roos 1947-7-14 2859 Inyo North slope Baldy Peak, Panamint Mountains. 2621 Comment
  CAS-BOT-BC99295  Artemisia tridentata subsp. vaseyana John Roos; Lucille Roos 1947-9-20 2807 Inyo Wild Rose Canyon, Panamint Mts. 2377 Comment
  CLARK-A1528-1028  Petradoria discoidea John C. Roos 1953-8-8 5935 Inyo Inyo Mountains 2743 Comment
Read comments
Jul 30 2014
  CLARK-A1528-1100  Brickellia oblongifolia var. linifolia John C. Roos 1953-8-8 5944 Inyo Inyo Mountains 2590 Comment
  CLARK-A1528-1112  Chrysothamnus albidus John C. Roos 1954-8-15 6224 Inyo Saline Valley 426 Comment
  CLARK-A1528-1170  Cuscuta indecora John C. Roos 1965-9-18 Inyo Inyo Mountains Comment
  CLARK-A1528-1224  Keckiella rothrockii Alfred R. Roos, John C. Roos 1953-8-10 5980 Inyo Inyo Mountains 2529 Comment
  CLARK-A1528-1231  Cordylanthus tecopensis John C. Roos, Alfred R. Roos 1954-6-13 6139 Inyo Death Valley Junction 624 Comment
  CLARK-A1528-1294  Pinus flexilis John C. Roos 1948-7-3 3920 Inyo Panamint Range Comment
  CLARK-A1528-1301  Petalonyx nitidus John C. Roos 1965-6-11 Inyo Panamint Mountains Comment
  CLARK-A1528-1378  Acer glabrum John C. Roos 1948-7-3 3905 Inyo Panamint Mountains 2743 Comment
  CLARK-A1528-1603  Aster canescens John C. Roos 1953-8-8 5941 Inyo Inyo Mountains 2651 Comment
  CLARK-A1528-1635  Baccharis sergiloides John C. Roos 1965-9-18 Inyo Panamint Mountains Comment
  CLARK-A1528-1703  Chrysothamnus albidus John C. Roos, Lucille Roos 1954-11-23 6259 Inyo Saline Valley 426 Comment
  CLARK-A1528-1708  Chrysothamnus gramineus Alfred R. Roos, John C. Roos 1953-8-9 5945 Inyo Inyo Mountains 2682-2743 Comment
  CLARK-A1528-1714  Chrysothamnus nauseosus subsp. mohavensis John C. Roos, Lucille Roos 1947-9-19 2804 Inyo Panamint Mountains 2743 Comment
  CLARK-A1528-1752  Chrysothamnus viscidiflorus subsp. stenophyllus John C. Roos 1941-8-16 67 Inyo Death Valley National Park 1371 Comment
  CLARK-A1528-1756  Chaenactis carphoclinia John C. Roos 1947-4-19 3498 Inyo Death Valley Comment
  CLARK-A1528-1888  Haplopappus gilmanii John C. Roos 1954-8-14 6216 Inyo Inyo Mountains 2179 Comment
  CLARK-A1528-1965  Hymenopappus filifolius var. nanus Alfred R. Roos, John C. Roos 1953-8-9 5950 Inyo Inyo Mountains 2986 Comment
  CLARK-A1528-2024  Perityle megalocephala John C. Roos, Alfred R. Roos 1954-8-14 6217 Inyo Inyo Mountains 2179 Comment
  CLARK-A1528-2052  Petradoria discoidea John C. Roos 1953-8-8 5935 Inyo Inyo Mountains 2743 Comment
  CLARK-A1528-2061  Pluchea sericea John C. Roos 1965-7-11 Inyo Death Valley Comment
  CLARK-A1528-2213  Cryptantha echinella John C. Roos, Lucille Roos 1947-7-14 2858 Inyo Panamint Mountains 2560 Comment
  CLARK-A1528-2283  Arabis glaucovalvula John C. Roos 1947-4-20 3515 Inyo Panamint Range 1554 Comment
  CLARK-A1528-2323  Lepidium flavum John C. Roos 1947-4-18 3457 Inyo Shoshone Comment
  CLARK-A1528-2345  Streptanthus cordatus John C. Roos 1952-7-27 5835 Inyo White Mountains 3139 Comment
  CLARK-A1528-2348  Thelypodium jaegeri John C. Roos 1954-6-29 6185 Inyo Inyo Mountains 2194 Comment
  CLARK-A1528-2383  Cleomella obtusifolia John C. Roos 1965-7-11 Inyo Death Valley Junction Comment
  CLARK-A1528-2496  Atriplex parryi John C. Roos, Alfred R. Roos 1950-8-7 4926 Inyo Tecopa 426 Comment
  CLARK-A1528-2592  Nitrophila mohavensis John C. Roos 1965-7-11 Inyo Death Valley Junction Comment
  CLARK-A1528-2625  Sedum rosea subsp. integrifolium John C. Roos 1937-8-8 1614 Inyo Lone Pine Canyon Comment
  CLARK-A1528-2750  Astragalus lentiginosus John C. Roos 1958-7-5 Inyo Inyo Mountains Comment
  CLARK-A1528-2941  Centaurium calycosum John C. Roos 1965-7-11 Inyo Tecopa Comment
  CLARK-A1528-3080  Cyperus laevigatus John C. Roos, Lucille Roos 1953-11-2 6042 Inyo Tecopa Hot Springs 426 Comment
  CLARK-A1528-3114  Salvia funerea John C. Roos, Lucille Roos 1954-3-27 6051 Inyo Death Valley National Park 853 Comment
  CLARK-A1528-3175  Petalonyx nitidus John C. Roos 1941-8-15 75 Inyo Panamint Mountains Comment
  CLARK-A1528-3300  Oenothera avita subsp. eurekensis John C. Roos, Alfred R. Roos 1955-4-9 6318 Inyo Eureka Valley 944 Comment
  CLARK-A1528-3326  Camissonia claviformis John C. Roos, Lucille Roos 1954-5-9 6109 Inyo Panamint Mountains 1219 Comment
  CLARK-A1528-3346  Oenothera caespitosa subsp. marginata John C. Roos, Lucille Roos 1952-7-28 5851 Inyo White Mountain Comment
  CLARK-A1528-3411  Eschscholzia minutiflora John C. Roos 1947-4-20 3584 Inyo Wildrose Canyon Comment
  CLARK-A1528-3450  Navarretia breweri John C. Roos, Lucille Roos 1951-8-11 5166 Inyo White Mountains 3352 Comment
  CLARK-A1528-3497  Eriastrum sparsiflorum John C. Roos 1947-7-12 2834 Inyo Panamint Mountains Comment
  CLARK-A1528-3511  Gilia latifolia John C. Roos 1938-4-17 1636 Inyo Death Valley Comment
  CLARK-A1528-3513  Gilia scopulorum John C. Roos 1955-4-6 6298 Inyo Inyo Mountains 502 Comment
  CLARK-A1528-3521  Gilia ripleyi John C. Roos, Lucille Roos 1954-6-13 6138 Inyo Panamint Mountains 1219 Comment
  CLARK-A1528-3523  Ipomopsis aggregata John C. Roos 1937-8-8 975 Inyo Lone Pine Canyon Comment
  CLARK-A1528-3612  Eriogonum angulosum John C. Roos 1947-4-19 3491 Inyo Death Valley Comment
  CLARK-A1528-3626  Pinus flexilis John C. Roos 1947-7-14 2816 Inyo Panamint Mountains 2621 Comment
  CLARK-A1528-3642  Chorizanthe xanti John C. Roos 1948-7-3 3902 Inyo Panamint Mountains 3047 Comment
  CLARK-A1528-3660  Eriogonum intrafractum John C. Roos, Lucille Roos 1954-5-8 Inyo Grapevine Mountains 1280 Comment
  CLARK-A1528-3712  Eriogonum umbellatum John C. Roos 1947-7-14 2860 Inyo Panamint Mountains 2468 Comment
  CLARK-A1528-3716  Eriogonum umbellatum John C. Roos 1941-8-15 74 Inyo Panamint Mountains 2468 Comment
  CLARK-A1528-3922  Mirabilis froebelii John C. Roos 1965-7-11 Inyo Panamint Mountains Comment
  CLARK-A1528-4014  Physocarpus alternans John C. Roos 1965-7-10 Inyo Panamint Mountains Comment
  CLARK-A1528-4094  Heuchera rubescens John C. Roos, Lucille Roos 1947-7-14 2850 Inyo Panamint Mountains 2651 Comment
  CLARK-A1528-4102  Jamesia americana subsp. californica John C. Roos, Lucille Roos 1947-7-14 2848 Inyo Panamint Mountains 2743 Comment
  CLARK-A1528-4155  Ribes velutinum John C. Roos 1965-7-10 Inyo Panamint Mountains Comment
  CLARK-A1528-4241  Mimulus densus John C. Roos, Lucille Roos 1952-7-28 5845 Inyo White Mountains 2621 Comment
  CLARK-A1528-4295  Penstemon bridgesii John C. Roos 1941-8-17 65 Inyo Panamint Mountains 2377 Comment
  CLARK-A1528-4317  Penstemon speciosus John C. Roos, Lucille Roos 1952-7-27 5834 Inyo White Mountains 3169 Comment
  CLARK-A1528-4454  Andropogon glomeratus John C. Roos 1938-4-17 1622 Inyo Death Valley Comment
  CLARK-A1528-4486  Aristida purpurea John C. Roos, Lucille Roos 1954-5-9 6108 Inyo Panamint Mountains 1219 Comment
  CLARK-A1528-4741  Eriogonum heermannii John C. Roos, Lucille Roos 1954-6-28 6171 Inyo Inyo Mountains 1615 Comment
  CLARK-A1528-4934  Cryptantha confertiflora John C. Roos 1947-4-20 3576 Inyo Wildrose Canyon 1584 Comment
  CLARK-A1528-4983  Lupinus magnificus John C. Roos 1965-7-11 Inyo Panamint Mountains Comment
  CLARK-A1528-4998  Cryptantha flavoculata John C. Roos 1947-4-20 3577 Inyo Wildrose Canyon 1584 Comment
  CLARK-A1528-5092  Fritillaria pinetorum John C. Roos 1967-8-6 Inyo Inyo Mountains 2773 Comment
  CLARK-A1528-5096  Astragalus kentrophyta subsp. implexus Alfred R. Roos, John C. Roos 1953-8-9 5952 Inyo Inyo Mountains 3047 Comment
  CLARK-A1528-5104  Astragalus platytropis Alfred R. Roos, John C. Roos 1953-8-9 5961 Inyo Inyo Mountains 3078 Comment
  CLARK-A1528-5262  Stipa pinetorum John C. Roos, Alfred R. Roos 1954-6-12 6136 Inyo Panamint Range 2682 Comment
  CLARK-A1528-5272  Stipa pinetorum John C. Roos, Lucille Roos 1951-8-9 5121 Inyo White Mountains 3139 Comment
  CLARK-A1528-5353  Arctomecon merriamii John C. Roos, Lucille Roos 1954-5-8 6099 Inyo Grapevine Mountains 0 Comment
  CLARK-A1528-5355  Oenothera heterochroma subsp. monoensis John C. Roos, Alfred R. Roos 1954-8-14 6213 Inyo Inyo Mountains 2316 Comment
  CLARK-A1528-5408  Atriplex parryi John C. Roos 1950-4-7 4726 Inyo Tecopa 426 Comment
  CLARK-A1528-5438  Phacelia vallis-mortae John C. Roos 1947-4-18 3475 Inyo Death Valley National Park Comment
  CLARK-A1528-5610  Chrysothamnus nauseosus John C. Roos 1965-9-18 Inyo Lone Pine Comment
  CLARK-A1528-5689  Eucnide urens John C. Roos 1947-4-19 3483 Inyo Death Valley National Park Comment
  CLARK-A1528-5719  Eriogonum incanum John C. Roos 1937-8-8 Inyo Sierra Nevada Comment
  CLARK-A1528-5736  Cordylanthus ramosus subsp. eremicus John C. Roos 1941-8-17 76 Inyo Panamint Mountains Comment
  CLARK-A1528-6883  Petalonyx nitidus John C. Roos 1965-7-11 3 Inyo Panamint Mountains Comment
  CLARK-A1528-7799  Poa secunda Alfred R. Roos, John C. Roos 1953-8-13 6018 Inyo Inyo Mountains 3306 Comment
  LA102246  Krascheninnikovia lanata John C. Roos; Alfred R. Roos 1953-8-14 6028 Inyo Inyo Mountains, Al Rose Canyon 2255 Comment
  LA102325  Penstemon scapoides John C. Roos; 1958-7-5 sn Inyo Inyo Mountains, Near Badger Flat Comment
  LA102333  Chloropyron tecopense A. R. Roos; 1950-8-7 sn Inyo Tecopa Hot Springs, ca. 2 mi. N of Tecopa in the Amargosa River Valley 426 Comment
  LA102337  Atriplex lentiformis Alfred R. Roos; 1950-8-7 sn Inyo Tecopa in the Amargosa River Valley 426 Comment
  LA102340  Atriplex polycarpa Alfred R. Roos; 1950-8-7 sn Inyo China Ranch on the Amargosa River S of Tecopa 426 Comment
  LA102438  Pericome caudata J. C. Roos; 1956-8-29 6595 Inyo Panamint Mountains, at the head of Death Valley Canyon Comment
  NY185734  Stanleya pinnata subsp. inyoensis J. C. Roos 1954-6-28 6177 Inyo Southeast end of Eureka Valley 3000 Comment
  NY651577  Penstemon scapoides J. C. Roos 1953-8-8 5936 Inyo Hill behind Blue Bell Mine, Badger Flat, Inyo Mountains 2743.2 Comment
  NY675227  Astragalus kentrophyta var. elatus J. C. Roos 1953-8-9 5952 Inyo Tamarack Canyon, Inyo Mountains 3048 Comment
  NY790409  Keckiella rothrockii var. rothrockii J. C. Roos 1953-8-10 5980 Inyo Branch of Mazourka Canyon, Inyo Mountains 2529.8 Comment
  NY9668  Swallenia alexandrae J. C. Roos 1955-5-13 6352 Inyo This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  POM261397  Chrysothamnus nauseosus subsp. consimilis J. C. Roos 1941-8-17 57 Inyo Panamint Mts 2896 Comment
  POM261407  Lupinus excubitus var. excubitus J. C. Roos 1941-8-17 61 Inyo Panamint Mts. 2652 Comment
  POM263125  Pinus balfouriana J. C. Roos 1937-8-8 341 Inyo Lone Pine Canyon. 2744 Comment
  POM263462  Agrostis idahoensis J. C. Roos 1937-8-8 424 Inyo Lone Pine Canyon. 2744 Comment
  POM264156  Sibbaldia procumbens J. C. Roos 1937-8-8 535 Inyo Lone Pine Canyon. 2744 Comment
  POM265666  Cleomella brevipes J. C. Roos 1937-8-4 1954 Inyo Owens Lake Comment
  POM274203  Brickellia multiflora J. C. Roos 1947-9-18 2792 Inyo Wildrose Canyon, Panamint Mts. 1067 Comment
  POM274235  Eriogonum panamintense var. mensicola J. C. Roos 1947-7-15 2869 Inyo Wildrose Canyon at Kilns. Panamint Mountain Range. 2134 Comment
  POM301713  Andropogon glomeratus J. C. Roos 1938-4-17 1622 Inyo Springs above Furnace Creek, Death Valley. Comment
  RSA105012  Tricardia watsonii J. C. Roos 1955-5-16 6388 Inyo Along Loretto road 3 miles SW of Loretto mine, Inyo Mts. 1860 Comment
  RSA105019  Oenothera avita subsp. eurekensis J. C. Roos 1955-5-13 6362 Inyo West side Eureka Valley at mouth of Marble Canyon. 1037 Comment
  RSA105027  Tricardia watsonii J. C. Roos, L. Roos 1955-5-15 6376 Inyo 1 mile SE of Willow Spring, Last Chance Mts. 1951 Comment
  RSA155653  Chrysothamnus parryi subsp. asper J. C. Roos 1955-8-26 6551 Inyo Main ridge between Squaw Peak and Waucoba Mountain. 2957 Comment
  RSA155662  Chrysothamnus nauseosus subsp. hololeucus J. C. Roos 1955-8-24 6541 Inyo Last Chance Mts, 0.2 miles E of Willow Spring 1860 Comment
  RSA155675  Symphoricarpos longiflorus J. C. Roos 1955-6-17 6414 Inyo 2 miles north of Willow Spring, Last Chance Mountains. 2011 Comment
  RSA155681  Oenothera cespitosa subsp. crinita J. C. Roos 1955-6-19 6446 Inyo Last Chance Mountains: Whitetop Peak, 2 miles west of Last Chance Spring. 2576 Comment
  RSA155684  Sporobolus cryptandrus J. C. Roos 1955-6-20 6458 Inyo Last Chance Mountains 2 miles NE of Willow Spring. Comment
  RSA155689  Hesperostipa comata subsp. comata J. C. Roos 1955-6-19 6453 Inyo Willow Spring, Last Chance Mountains 1829 Comment
  RSA155709  Salvia dorrii subsp. dorrii J. C. Roos 1955-7-21 6488 Inyo Whitetop Peak, summit Last Chance Mountains 2561 Comment
  RSA155711  Fendlerella utahensis J. C. Roos 1955-7-21 6486 Inyo Last Chance Mountains: Whitetop Peak, summit 2530 Comment
  RSA155712  Abronia nana var. covillei J. C. Roos 1955-7-21 6485 Inyo Whitetop Peak, summit Last Chance Mountains 2561 Comment
  RSA155758  Sporobolus cryptandrus J. C. Roos 1955-8-26 6560 Inyo Soldier Flat, east base Waucoba Mt. Inyo Mountains 2165 Comment
  RSA155760  Artemisia tridentata J. C. Roos, A. R. Roos 1955-8-26 6558 Inyo Summit of Waucoba Mountain, Inyo Mountains 3384 Comment
  RSA155763  Artemisia michauxiana J. C. Roos, A. R. Roos 1955-8-26 6555 Inyo Summit Waucoba Mountain 3384 Comment
  RSA157096  Gutierrezia sarothrae J. C. Roos 1955-8-23 6533 Inyo Canyon at West base Last Chance Mountains, east of Eureka Valley sand dunes. 1220 Comment
  RSA157106  Muhlenbergia porteri A. R. Roos 1955-8-23 6534 Inyo West base Last Chance Mts. east of eureka Valley sand dunes. Comment
  RSA158096  Sporobolus cryptandrus J. C. Roos, E. C. Jaeger 1955-7-23 6517 Inyo Saline Valley below mouth of Hunter Canyon 351 Comment
  RSA158106  Hazardia brickellioides J. C. Roos 1955-7-23 6513 Inyo Beveridge Canyon, E base of Mtns, Saline Valley 640 Comment
  RSA158107  Adiantum capillus-veneris J. C. Roos 1955-7-23 6512 Inyo Mouth of Beveridge Canyon, E base of mountains, Saline Valley. 610 Comment
  RSA40535  Stephanomeria spinosa J. C. Roos 1947-7-11 2902 Inyo Mohagany Flats, Panamint Mts. 2439 Comment
  RSA40576  Sphaeromeria cana J. C. Roos 1947-7-13 2877 Inyo Summit of Telescope Peak 3363 Comment
  RSA40600  Brickellia oblongifolia var. linifolia J. C. Roos 1947-7-15 2868 Inyo Wildrose Canyon at Kilns, Panamint Mts. Comment
  RSA40601  Eriogonum panamintense var. mensicola J. C. Roos 1947-7-15 2869 Inyo Wildrose Canyon at Kilns. Panamint Mountain Range. 2134 Comment
  RSA413790  Lupinus magnificus var. magnificus J. C. Roos 1965-7-11 s.n. Inyo Wildrose Canyon. Panamint Mtns. Comment
  RSA450199  Triglochin concinna var. debilis J. C. Roos 1965-7-11 s.n. Inyo Tecopa. 427 Comment
  RSA450238  Centaurium exaltatum J. C. Roos 1965-7-11 s.n. Inyo Tecopa Comment
  RSA457389  Poa bigelovii J. C. Roos 1955-4-8 6310 Inyo Last Chance Mtns, E of Eureka Valley sand dunes. aklt 4300ft, Inyo County 1311 Comment
  RSA48169  Cordylanthus tecopensis J. C. Roos, Weatherby 1949-9-3 3569 Inyo Tecopa Hot Springs 427 Comment
  RSA592496  Atriplex parryi J. C. Roos 1950-4-7 4726 Inyo Tecopa. 427 Comment
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Sep 29 2010
  RSA659491  Euphorbia ocellata subsp. ocellata J. C. Roos, L. Roos 1954-6-28 6180 Inyo SE end of Eureka Valley. Comment
  RSA659659  Rosa woodsii J. C. Roos 1948-7-4 s.n. Inyo Thorndykes Spring, Panamint Mtns. Comment
  RSA664189  Kochia americana J. C. Roos 1965-9-18 s.n. Inyo Inyo Mountains; Darwin Mesa. Comment
  RSA71670  Achnatherum pinetorum J. C. Roos 1951-8-9 5121 Inyo N rim Reed Flat, White Mts 3140 Comment
  RSA71675  Eriogonum umbellatum var. versicolor J. C. Roos, Lucille Roos 1951-8-9 5126 Inyo Reed Flat, White Mountains 3171 Comment
  RSA71713  Cordylanthus kingii subsp. helleri J. C. Roos, L. Roos 1952-7-25 5818 Inyo Between Westgaard Pass and Reed Flat, White Mtns. 2439 Comment
  RSA71723  Monardella odoratissima subsp. parvifolia J. C. Roos 1952-7-27 5828 Inyo West rim of Reed Flat, White Mtns. 3110 Comment
  RSA71730  Mimulus nanus var. mephiticus J. C. Roos, Lucille Roos 1952-7-28 5845 Inyo Drying seep with Artemisia nova, lappula Redowskii, etc., Wyman Canyon, White Mts. 2622 Comment
  RSA71735  Monolepis nuttalliana J. C. Roos, L. Roos 1952-7-28 5852 Inyo Roadside at head of Wyman Canyon, White Mts. 3140 Comment
  RSA71747  Eriogonum ovalifolium J. C. Roos, Lucille Roos 1952-7-27 5833 Inyo Southeast rim Reed Flat, White Mountains. 3140 Comment
  RSA71749  Streptanthus cordatus J. C. Roos 1952-7-27 5835 Inyo Southeast rim Reed Flat, White Mountains. 3140 Comment
  RSA71761  Stipa nelsonii subsp. nelsonii J. C. Roos 1951-8-8 5107 Inyo Reed Flat, White Mountains 3171 Comment
  RSA71776  Lepidospartum latisquamum J. C. Roos, L. Roos 1951-8-7 5082 Inyo West side Westgard Pass, near Batchelder spring; White Mts. Comment
  RSA71788  Elymus elymoides J. C. Roos, L. Roos 1951-8-8 5094 Inyo Head of Wyman Canyon, White Mountains. 3171 Comment
  RSA72072  Woodsia scopulina J. C. Roos, Lucille Roos 1951-8-12 5189 Inyo 1.5 miles South of Reed Flat, White Mts. 2895 Comment
  RSA72073  Purshia tridentata var. tridentata J. C. Roos, Lucille Roos 1951-8-12 5187 Inyo 1 mile S of Reed Flat. White Mtns. 2957 Comment
  RSA74560  Achnatherum pinetorum J. C. Roos 1951-8-8 5086 Inyo 3 miles NW of Cedar Flat, White Mountains 2591 Comment
  RSA74600  Achnatherum webberi J. C. Roos, L. Roos 1952-7-25 5819 Inyo Between Westgard Pass and Reed Flat, White Mountains. 2439 Comment
  RSA74601  Astragalus kentrophyta var. elatus J. C. Roos, Lucille Roos 1952-7-26 5820 Inyo East side Reed Flat at head of Birch Creek, White Mts. 3049 Comment
  RSA79480  X Stiporyzopsis bloomeri J. C. Roos, L. Roos 1953-8-13 6014 Inyo Along crest of Inyo Mts. 3 miles east of Badger flat. 3171 Comment
  RSA79485  Cercocarpus ledifolius J. C. Roos, A. R. Roos 1953-8-13 6009 Inyo Tamarack Canyon. 2744 Comment
  RSA79507  Poa secunda J. C. Roos 1953-8-13 6018 Inyo Crest of Inyo Mts, 3 miles E of Badger flat. 3308 Comment
  RSA79545  Leucopoa kingii J. C. Roos, A. R. Roos 1953-8-11 6001 Inyo In pass 3 miles east of Blue Bell Mine on trail to Side Hill Spring. 3108 Comment
  RSA79620B  Eriogonum microtheca var. laxiflorum J. C. Roos, A. R. Roos 1953-8-7 5931 Inyo Blue Bell Mine, Badger Flat, Inyo Mtns. 2683 Comment
  RSA79645  Perityle megalocephala var. megalocephala J. C. Roos 1953-8-10 5979 Inyo Juniper belt, Mazourka Canyon, Inyo Mts. 2500 Comment
  RSA79656  Salvia dorrii subsp. dorrii J. C. Roos 1953-8-9 5947 Inyo Tamarack Canyon, Inyo Mts. 2683 Comment
  RSA79664  Brickellia oblongifolia var. linifolia J. C. Roos, A. R. Roos 1953-8-8 5944 Inyo NW rim of Badger Flat, Inyo Mts. 2591 Comment
  RSA79695  Astragalus purshii var. lectulus J. C. Roos, A. R. Roos 1953-8-9 5957 Inyo Tamarack Canyon 3048 Comment
  RSA79716  Stenotus acaulis J. C. Roos, A. R. Roos 1953-8-9 5969 Inyo Ridge southeast of Tamarack Canyon, Inyo Mountains 3232 Comment
  RSA79718  Achnatherum pinetorum J. C. Roos 1953-8-9 5967 Inyo Ridge southeast of Tamarack Canyon, Inyo Mountains 3232 Comment
  RSA85136  Atriplex canescens J. C. Roos, L. Roos 1953-11-2 6041 Inyo 0.2 miles N.E. of Tecopa Comment
  RSA85283  Sporobolus airoides J. C. Roos, A. R. Roos 1950-8-7 4924 Inyo Tecopa. Comment
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Jun 30 2012
  RSA85639  Aster pauciflorus J. C. Roos, A. R. Roos 1950-8-7 4923 Inyo Tecopa 427 Comment
  RSA89046  Chaetadelpha wheeleri J. C. Roos 1954-6-28 6174 Inyo Southeast end of Eureka Valley 930 Comment
  RSA89048  Camissonia heterochroma J. C. Roos, A. R. Roos 1954-8-14 6213 Inyo 0.4 miles north of The Narrows, Marble Canyon, Inyo Mts. 2317 Comment
  RSA92169  Camissonia boothii subsp. desertorum J. C. Roos, Lucille Roos 1954-6-26 6165 Inyo Inyo Mountains, Mazourka Canyon 2439 Comment
  SBBG103046  Nitrophila mohavensis J. C. Roos, A. R. Roos 1954-6-13 6140 Inyo open flats of Amargosa Desert, 3 mi NE of Death Valley Jct along Ash Meadows Rd; ISOTYPE 624 Comment
  SD239597  Iva acerosa J. C. Roos, A. R. Roos 1950-8-7 Inyo Northern Mojave Desert: Tecopa in Amargosa River Valley. Low moist area near town. 427 Comment
  SD52928  Chrysothamnus viscidiflorus var. viscidiflorus A. R. Roos, J. C. Roos 1955-8-26 6553 Inyo North shoulder Waucoba Mountain. 3200 Comment
  SD52930  Eriogonum nummulare John C. Roos, E. C. Jaeger 1955-7-22 6503 Inyo Soldier Flat, east base Waucoba Mountain 2195 Comment
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Dec 13 2011
  SD52945  Eremothera boothii subsp. intermedia J. C. Roos 1955-6-17 9396 Inyo 2.0 miles northeast of Willow Spring, Last Chance Mountains. 2012 Comment
  SD52950  Swertia albomarginata J. C. Roos 1955-6-19 6437 Inyo 2.5 miles south of Willow Spring; Last Chance Mountains. 2316 Comment
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Sep 5 2013
  SD52996  Lepidospartum latisquamum J. C. Roos, A. R. Roos 1955-8-24 6539 Inyo Near Willow Spring, Last Chance Mountains. 1830 Comment
  SD53008  Penstemon floridus John C. Roos 1955-6-18 6423 Inyo 2 miles NE of Willow Spring, Last Chance Mountains 2012 Comment
  SEINET218257 Image available Philadelphus microphyllus var. stramineus John Roos 1941-1 46 Inyo Panamint Mts. East slope of Mt. Baldy. Comment
  SEINET8465415 Image available Lomatium inyoense J. C. Roos, A. R. Roos 1953-8-9 5964 Inyo Inyo Mtns, Upper Tamarack Canyon 3110 Comment
  UC1010181  Ericameria parryi var. aspera John and Lucille Roos 1951-8-8 5114 Inyo se rim Reed Flat; White Mts., Reed Flat 3078 Comment
  UC1010184  Townsendia scapigera John and Lucille Roos 1951-8-9 5120 Inyo 1 mi s Reed Flat (and at Reed Flat); White Mts., Reed Flat 3048 Comment
  UC1010203  Cordylanthus kingii subsp. helleri John and Lucille Roos 1952-7-25 5818 Inyo between Westgaard Pass and Reed Flat; White Mountains 2438 Comment
  UC1010225  Cordylanthus tecopensis J. C. and A. R. Roos 1950-8-7 4929 Inyo Tecopa Hot Springs 426 Comment
  UC1010250  Senecio spartioides J. C. and A. R. Roos 1953-8-11 5990 Inyo 2 mi e Blue Bell Mine; Inyo Mts. 2865 Comment
  UC1010253  Cryptantha nubigena J. C. and A. R. Roos 1953-8-11 6005 Inyo 3 mi e Badger Flat; Inyo Mts. 3108 Comment
  UC1010261  Stenotus acaulis J. C. and A. R. Roos 1953-8-9 5969 Inyo S. E. of head of Tamarack Canyon, Inyo Mts. 3230 Comment
  UC1010330  Perityle megalocephala var. megalocephala J. C. and A. R. Roos 1953-8-8 5938 Inyo hill behind Blue Bell Mine; Inyo Mts., Badger Flat 2743 Comment
  UC1010333  Ericameria parryi var. aspera J. C. and A. R. Roos 1953-8-9 5949 Inyo Inyo Mts., Tamarack Canyon 2987 Comment
  UC1010340  Pinus flexilis J. C. and A. R. Roos 1953-8-9 5972 Inyo Tamarack Canyon Inyo Mts., Tamarack Canyon 2865 Comment
  UC1018152 Image available Lomatium foeniculaceum subsp. inyoense John and Lucille Roos 1954-6-24 6148 Inyo 3 mi e Badger Flat (near Side Hill Spring, pass at crest of Inyo Mts); Inyo Mts.; Badger Flat, Inyo Mts., Inyo Co. 3108 Comment
  UC1023381  Muhlenbergia richardsonis John and Lucille Roos 1951-8-9 5123 Inyo Reed Flat White Mts. 3048 Comment
  UC1023384  Eragrostis mexicana subsp. virescens John and Lucille Roos 1951-8-12 5194 Inyo Big Pine along Big Pine Creek; Big Pine along Big Pine Creek 1219 Comment
  UC1042969  Hecastocleis shockleyi John and Lucille Roos 1954-5-8 6094 Inyo crest of mountains above Leadfield; Grapevine Mts. 1645 Comment
  UC1042982  Chenopodium leptophyllum John and Lucille Roos 1954-6-26 6161 Inyo Mazourka Canyon Inyo Mts., Badger Flat (se end of Flat) 2621 Comment
  UC1042989  Jamesia americana var. rosea John and Lucille Roos 1954-6-29 6186 Inyo The Narrows Inyo Mts., Marble Canyon, The Narrows 2194 Comment
  UC1043017  Brickellia longifolia John and Lucille Roos 1954-3-27 6058 Inyo Klare Spring, Titus Canyon, Grapevine Mts. Death valley. 914 Comment
  UC1080599  Oenothera californica subsp. eurekensis John C. Roos 1955-5-13 6356 Inyo se end Eureka Valley 944 Comment
  UC1080600  Chaetadelpha wheeleri John C. Roos 1955-5-13 6357 Inyo se end of Eureka Valley 975 Comment
  UC1080610  Astragalus inyoensis John C. Roos 1955-5-15 6371 Inyo 0.5 mi w Willow Spring (Last Chance Mts.); , w of Willow Spring 1767 Comment
  UC1080613  Stanleya pinnata John C. Roos 1955-5-13 6366 Inyo w side Eureka Valley at mouth Marble Canyon; w side Eureka Valley at mouth Marble Canyon 1036 Comment
  UC1080635  Camissonia pusilla John C. Roos 1955-5-15 6363 Inyo 0.5 mi w Willow Spring; Last Chance Mts. 1767 Comment
  UC1117461  Muhlenbergia porteri J. C. and A. R. Roos 1955-8-23 6534 Inyo e Eureka Valley sand dunes; west base Last Chance Mts. 1219 Comment
  UC1234663  Chrysothamnus viscidiflorus subsp. viscidiflorus A. R. and J. C. Roos 1955-8-26 6553 Inyo n shoulder Waucoba Mt.; Inyo Mts., Waucoba Mt. 3200 Comment
  UC1234677  Eriastrum wilcoxii J. C. Roos 1955-7-23 6508 Inyo Soldier Flat Inyo Mts., east base Waucoba Mts. 2194 Comment
  UC1234850  Streptanthus cordatus J. C. Roos 1955-6-17 6399 Inyo n slope 2 mi ne Willow Spring; Last Chance Mountains 2011 Comment
Read comments
Nov 4 2011
  UC1234853  Ericameria parryi var. aspera J. C. and A. R. Roos 1955-8-26 6551 Inyo saddle on main ridge between Squaw Peak Waucoba Mt.; Inyo Mts 2956 Comment
  UC1234862  Gutierrezia sarothrae J. C. and A. R. Roos 1955-8-23 6533 Inyo w base Last Chance Mts. e of Eureka Valley sand dunes; Last Chance Mts. 1219 Comment
  UC1234864  Phacelia curvipes J. C. Roos 1955-6-17 6417 Inyo 2 mi ne Willow Spring; Last Chance Mountains 2011 Comment
  UC1234868  Eucrypta micrantha J. C. Roos 1955-6-17 6413 Inyo 2 mi ne Willow Spring; Last Chance Mountains 2011 Comment
  UC1234875  Chorizanthe watsonii J. C. Roos 1955-6-18 6421 Inyo 2 mi ne Willow Spring (Last Chance Mountains); , ne of Willow Spring 2011 Comment
  UC1234881  Eriogonum umbellatum var. versicolor J. C. Roos 1955-6-19 6432 Inyo 1 mi se Willow Spring; Last Chance Mts. 1950 Comment
  UC1236235  Astragalus inyoensis John C. Roos 1955-5-15 6371 Inyo 0.5 mi w Willow Spring (Last Chance Mts.); , w of Willow Spring 1767 Comment
  UC1236250  Brickellia atractyloides John C. Roos 1955-5-13 6337 Inyo e of Eureka Valley sand dunes; Last Chance Mts. (west base) 1219 Comment
  UC1236253  Gilia latifolia John C. Roos 1955-5-13 6334 Inyo e Eureka Valley sand dunes (w base Last Chance Mts.); , e of Eureka Valley sand dunes 1219 Comment
  UC1236264  Penstemon monoensis John C. Roos 1955-5-16 6389 Inyo Waucoba road 7 mi e Big Pine (w side Inyo Mts.); , e of Big Pine 1615 Comment
  UC1236268  Eriogonum fasciculatum var. polifolium John C. Roos 1955-5-13 6347 Inyo e Eureka Valley Sand Dunes (west base Last Chance Mts.); Last Chance Mts. 1219 Comment
  UC1473672  Cordylanthus tecopensis J. C. Roos and R. Weatherby 1949-9-3 3569 Inyo Hot Springs Tecopa; Mojave Desert 426 Comment
  UC1494275  Pyrrocoma racemosa var. paniculata J. C. Roos 1965-7-11 Inyo Tecopa Comment
  UCD118485  Eriastrum wilcoxii J. C. Roos; A. R. Roos 1954-6-12 6135 Inyo North face Wild Rose Peak at head of Trail Canyon. 2682 Comment
  UCD132933  Heliomeris multiflora var. nevadensis J. C. Roos 1965-7-11 s.n. Inyo Wildrose Canyon, at kilns. Panamint Mountains. Comment
  UCD134879  Pericome caudata J. C. Roos 1956-8-29 6595 Inyo at the head of Death Valley Canyon in the Panamint Mountains. Comment
  UCD135001  Psathyrotes annua J. C. Roos 1965-9-18 s.n. Inyo Argus Mountains, near Crowley Point. Comment
  UCD135337  Pyrrocoma lanceolata J. C. Roos 1965-7-11 s.n. Inyo Tecopa. Comment
  UCD63881  Eragrostis mexicana subsp. virescens John and Lucille Roos 1951-8-12 5194 Inyo Big Pine, along Big Pine Creek. 1219 Comment
  UCR18595  Perityle megalocephala John C. Roos, A. R. Roos 1954-8-14 6217 Inyo Inyo Mountains, The Narrows, Marble Canyon 2180 Comment
  UCR18602  Viguiera reticulata John C. Roos 1956-9-30 6604 Inyo Northern Mojave Desert, Panamint Mountains, Wildrose Canyon, 1 mi below Wildrose [Ranger] Station Comment
  UCR18645  Artemisia dracunculus John C. Roos 1950-8-6 s.n. Inyo Northern Mojave Desert, Tecopa Pass, west of Kingston Mountains 610 Comment
  UCR18755  Stanleya elata John C. Roos 1965-7-11 s.n. Inyo Northern Mojave Desert, Panamint Mtns: Wildrose Canyon at and below the Charcoal Kilns 2134 Comment
  UCR18796  Tiquilia nuttallii John C. Roos 1937-8-6 1961 Inyo Sierra Nevada Mtns, Big Pine Comment
  UCR18798  Betula occidentalis John C. Roos 1965-8-9 s.n. Inyo Sierra Nevada Mountains, Independence Creek [near Onion Valley] 2896 Comment
  UCR18882  Phacelia perityloides John C. Roos, L. Roos 1954-5-8 6101 Inyo Northern Mojave Desert, Grapevine Mountains, Titus Canyon, below Leadfield 1372 Comment
  UCR18896  Atriplex parryi John C. Roos, A. R. Roos 1950-8-7 4926 Inyo Northern Mojave Desert, Tecopa in Amargosa River Valley 427 Comment
  UCR18958  Bolboschoenus maritimus subsp. paludosus John C. Roos, L. Roos 1954-5-7 6077 Inyo Amargosa Desert, 3 mi NE of Death Valley Junction, on Ash Meadows Road 625 Comment
  UCR18969  Trifolium wormskioldii John C. Roos 1965-9-18 s.n. Inyo Owens Valley, west side of Owens Lake 1098 Comment
  UCR19051  Mimulus nanus var. mephiticus John C. Roos, L. Roos 1952-7-28 5846 Inyo White Mtns, Wyman Canyon 2683 Comment
  UCR19072  Penstemon rostriflorus John C. Roos, L. Roos 1952-7-28 5848 Inyo White Mtns., Wyman Canyon 2744 Comment
  UCR19105  Boerhavia annulata John C. Roos 1965-7-9 s.n. Inyo Northern Mojave Desert, Wildrose [Ranger] Station, Panamint Mountains 1280 Comment
  UCR19117  Mentzelia reflexa John C. Roos 1947-4-19 3480 Inyo Northern Mojave Desert, Death Valley [National Park], near Zabriskie Point 215 Comment
  UCR19124  Petalonyx nitidus John C. Roos 1965-7-11 s.n. Inyo Northern Mojave Desert, Panamint Mtns: Wildrose Canyon at and below the Charcoal Kilns 2134 Comment
  UCR19165  Navarretia breweri John C. Roos 1952-7-28 5855 Inyo White Mountains, Wyman Canyon, near the head of the canyon 3201 Comment
  UCR19186  Erigeron uncialis John C. Roos 1954-6-26 6160 Inyo Inyo Mountains, Mazourka Canyon, near SE end of Badger Flats 2622 Comment
  UCR19188  Artemisia nova John C. Roos 1953-8-9 s.n. Inyo Inyo Mtns., Badger Flats 2683 Comment
  UCR19194  Sisyrinchium bellum John C. Roos 1947-4-20 3500 Inyo Northern Mojave Desert, Death Valley National Monument [Park], Warm Springs, Furnace Creek 76 Comment
  UCR19199  Gilia ripleyi John C. Roos 1954-5-9 6107 Inyo Northern Mojave Desert, Emigrant Canyon, Panamint Mtns 1220 Comment
  UCR19225  Ribes velutinum John C. Roos 1948-7-3 3900 Inyo Northern Mojave Desert, Panamint Mtns, east & SE slopes of Baldy [=Rogers?] Peak Comment
  UCR19264  Eriogonum rixfordii John C. Roos 1965-7-9 s.n. Inyo Northern Mojave Desert, Wildrose [Ranger] Station, Panamint Mountains 1280 Comment
  UCR19267  Populus fremontii John C. Roos, A. R. Roos 1950-8-7 s.n. Inyo Northern Mojave Desert, Tecopa in Amargosa River Valley 427 Comment
  UCR19346  Oryzopsis webberi John C. Roos 1958-4-5 s.n. Inyo Inyo Mountains, near Badger Flats Comment
  UCR19673  Bromus tectorum John C. Roos 1948-7-4 3917 Inyo Northern Mojave Desert, Thorndike Camp, upper Wildrose Canyon, Panamint Mountains 2264 Comment
  UCR19733  Chrysothamnus albidus John C. Roos, A. R. Roos 1954-8-15 6224 Inyo Northern Mojave Desert, Lower Warm Spring, Saline Valley 427 Comment
  UCR19825  Stephanomeria spinosa John C. Roos, E. C. Jaeger 1955-7-23 6509 Inyo Northern Mojave Desert, Soldier Flat [apparently =Whippoorwill Flat] at east base of Waucoba Mtn., Inyo Mountains 2195 Comment
  UCR20460  Swallenia alexandrae John C. Roos, L. Roos 1954-6-28 6175 Inyo Northern Mojave Desert, N slope of sand dunes at SE end of Eureka Valley 930 Comment
  UCR23261  Ericameria cooperi John C. Roos 1947-4-20 3517 Inyo Northern Mojave Desert, Panamint Mtns: Emigrant Pass 1555 Comment
  UCR23415  Amsonia tomentosa John C. Roos, P. A. Munz 1955-4-8 6311 Inyo Northern Mojave Desert, Last Chance Mtns, east of Eureka Valley sand dunes 1220 Comment
  UCR23432  Streptanthus cordatus John C. Roos 1955-6-17 6399 Inyo Northern Mojave Desert, 2 mi. NE of Willow Spring, Last Chance Mtns. 1835 Comment
  UCR23434  Stanleya pinnata John C. Roos 1955-5-16 6391 Inyo Northern Mojave Desert, west side Inyo Mtns., Waucoba Road 6 mi east of Big Pine 1494 Comment
  UCR23464  Physocarpus alternans John C. Roos 1965-7-10 s.n. Inyo Northern Mojave Desert, Panamint Mountains: Eagle Springs Comment
  UCR23490  Galium multiflorum John C. Roos 1937-8-5 1027 Inyo White Mtns., White Mtns. Comment
  UCR23538  Boerhavia annulata John C. Roos 1955-7-23 6510 Inyo Inyo Mountains, mouth of Beveridge Canyon, east base of mountains, Saline Valley 610 Comment
  UCR23638  Monardella linoides John C. Roos 1981-8-29 6593 Inyo Northern Mojave Desert, At head of Death Valley Canyon, in the Panamint Mtns 2300 Comment
  UCR23719  Brickellia microphylla John C. Roos 1947-9-18 2793 Inyo Northern Mojave Desert, Panamint Mtns, Charcoal Kilns 2115 Comment
  UCR23723  Silene sargentii John C. Roos 1937-8-8 1018 Inyo Sierra Nevada Mtns., Lone Pine Canyon below Mt. Whitney 3506 Comment
  UCR23729  Chrysothamnus viscidiflorus subsp. puberulus John C. Roos 1955-7-21 6478 Inyo Last Chance Range, Ridge 2.5 mi. south of Willow Spring 2317 Comment
  UCR23735  Eucephalus breweri John C. Roos 1965-8-9 s.n. Inyo Sierra Nevada Mountains, near Little Pothole Lake, near Kearsarge Pass 3110 Comment
  UCR23786  Chrysothamnus albidus John C. Roos, L. Roos 1954-11-23 6259 Inyo Northern Mojave Desert, Lower Warm Spring, Saline Valley 427 Comment
  UCR23801  Haplopappus brickellioides John C. Roos, L. Roos 1955-4-6 6292 Inyo Northern Mojave Desert, Saline Valley, mouth of Craig Canyon, E base of Inyo Mtns. 534 Comment
  UCR23831  Chrysothamnus albidus John C. Roos, L. Roos 1953-11-1 6034 Inyo Amargosa River bed 3 mi. south of Shoshone 442 Comment
  UCR23938  Psorothamnus fremontii John C. Roos 1955-5-13 6332 Inyo Northern Mojave Desert, west base of Last Chance Mountains, east of Eureka Valley sand dunes 1280 Comment
  UCR24059  Muhlenbergia asperifolia John C. Roos 1955-7-23 6514 Inyo Northern Mojave Desert, Beveridge Canyon, E base of Mtns, Saline Valley 640 Comment
  UCR24066  Lepidospartum latisquamum John C. Roos 1955-7-22 6500 Inyo Last Chance Mtns, Willow Creek, W slope Last Chance Mtns. 1616 Comment
  UCR24068  Poa bigelovii John C. Roos 1955-4-8 6310 Inyo Last Chance Mtns, east of Eureka Valley sand dunes 1311 Comment
Read comments
Jun 5 2008
  UCR24103  Allium validum John C. Roos 1965-8-9 s.n. Inyo Sierra Nevada Mountains, near Little Pothole Lake, above Onion Valley [Kearsarge Pass area] 3061 Comment
  UCR24111  Chenopodium rubrum John C. Roos, A. R. Roos 1955-8-28 6567 Inyo Owens Valley, on the west side of Owens Lake, 3 miles north of Olancha 1082 Comment
  UCR24139  Pectis papposa John C. Roos, L. Roos 1961-10-21 s.n. Inyo Northern Mojave Desert, Eureka Valley Comment
  UCR24212  Eriogonum shockleyi John C. Roos 1955-7-21 6484 Inyo Northeastern Mojave Desert, North slope of Whitetop [= Last Chance] Peak, Last Chance Mtns. 2500 Comment
  UCR24213  Eriogonum trichopes John C. Roos 1955-7-24 6520 Inyo Northern Mojave Desert, Nelson Range near head of Grapevine Canyon 1890 Comment
  UCR24261  Eriogonum kearneyi var. monoense John C. Roos, E. C. Jaeger 1955-7-22 6503 Inyo Northern Mojave Desert, Soldier Flat, east base Waucoba Mtn, Inyo Mtns. 2195 Comment
  UCR24299  Acamptopappus shockleyi John C. Roos 1955-5-13 6345 Inyo Northern Mojave Desert, west base of Last Chance Mountains, east of Eureka Valley sand dunes 1280 Comment
  UCR24375  Sporobolus cryptandrus John C. Roos, A. R. Roos 1955-8-26 6560 Inyo Northern Mojave Desert, Soldier Flat, east base of Waucoba Mtn., Inyo Mtns. 2165 Comment
  UCR24434  Mimulus bigelovii var. cuspidatus John C. Roos, A. R. Roos 1955-8-23 6529 Inyo Last Chance Mtns., west base of Last Chance Mtns, east of Eureka Valley sand dunes 1220 Comment
  UCR24458  Penstemon patens John C. Roos 1958-7-5 s.n. Inyo Northern Mojave Desert, Inyo Mountains, near Badger Flats 2683 Comment
  UCR24491  Penstemon monoensis John C. Roos 1955-5-16 6389 Inyo Northern Mojave Desert, Waucoba road 7 mi east of Big Pine, west side Inyo Mtns. 1616 Comment
  UCR24553  Eragrostis mexicana subsp. virescens Alfred R. Roos 1937-8-4 10878 Inyo Lone Pine Comment
  UCR25607  Stipa pinetorum John C. Roos, L. Roos 1951-8-8 5086 Inyo White Mtns, 3 mi NW of Cedar Flat 2591 Comment
  UCR25789  Allenrolfea occidentalis John C. Roos 1937-8-6 972 Inyo Sierra Nevada Mtns, Bishop 1250 Comment
  UCR25969  Lappula occidentalis John C. Roos 1965-7-11 s.n. Inyo Northern Mojave Desert, Panamint Mtns: Wildrose Canyon at and below the Charcoal Kilns 2134 Comment
  UCR26170  Camissonia campestris John C. Roos 1947-4-19 3488 Inyo Death Valley, Ryan Wash. east of Furnace Creek 701 Comment
  UCR26180  Jamesia americana John C. Roos 1956-9-29 6602 Inyo Panamint Mtns, Head off Death Valley Canyon Comment
  UCR26273  Eriastrum wilcoxii John C. Roos, L. Roos 1952-6-25 6152 Inyo Northern Mojave Desert, East side of Badger Flats, Inyo Mtns. 2652 Comment
  UCR26274  Eriastrum wilcoxii John C. Roos, A. R. Roos 1954-6-12 6135 Inyo Northern Mojave Desert, Panamint Mtns., north face Wildrose Peak at head of Trail Canyon 2683 Comment
  UCR26334  Dichanthelium acuminatum subsp. fasciculatum John C. Roos, L. Roos 1954-11-24 6262 Inyo Northern Mojave Desert, mouth of Beveridge Canyon, east base of Inyo Mtns, Saline Valley 610 Comment
  UCR27938  Galium hypotrichium John C. Roos 1965-7-10 s.n. Inyo Northern Mojave Desert, south slope trail to Telescope Peak, Panamint Mountains 2744 Comment
  UCR30502  Cercocarpus ledifolius John C. Roos, A. R. Roos 1953-8-13 6009 Inyo Inyo Mtns, Tamarack Canyon 2744 Comment
  UCR30510  Gayophytum diffusum subsp. parviflorum John C. Roos, A. R. Roos 1953-8-11 5999 Inyo Northern Mojave Desert, Inyo Mtns: 2.5 mi east of Blue Bell Mine 2988 Comment
  UCR30520  Ericameria nana John C. Roos, A. R. Roos 1955-8-24 6538 Inyo Last Chance Mtns., Summit ridge of mtns, 3.5 mi. south of Willow Spring. 2439 Comment
  UCR30603  Cirsium mohavense John C. Roos, A. R. Roos 1950-8-7 s.n. Inyo Northeastern Mojave Desert, Amargosa River Valley, Tecopa Hot Springs, c. 2 mi. north of Tecopa 427 Comment
  UCR30609  Sporobolus airoides John C. Roos, A. R. Roos 1950-8-7 4924 Inyo Northern Mojave Desert, Tecopa in Amargosa River Valley 427 Comment
  UCR30610  Distichlis spicata John C. Roos, A. R. Roos 1950-8-7 s.n. Inyo Northern Mojave Desert, Tecopa in Amargosa River Valley 427 Comment
  UCR30611  Prosopis pubescens John C. Roos, A. R. Roos 1950-8-7 s.n. Inyo Northern Mojave Desert, Tecopa in Amargosa River Valley 427 Comment
  UCSB37812  Ericameria teretifolia Roos, John 1965-9-18 Inyo Wild Rose Canyon, Panamint Mtns. Comment
  UCSB46884  Triglochin concinna Roos, John 1965-7-11 Inyo Tecopa 426 Comment
  UCSB49608  Swallenia alexandrae John C. Roos and Lucille Roos 1954-6-28 6175 Inyo collected in the N-slope of sand dune at SE-end of the Eureka Valley Eureka Valley 929 Comment
  CAS-BOT-BC100740  Chrysothamnus viscidiflorus subsp. puberulus J. C. Roos; A. R. Roos 1954-8-14 6218 Inyo 2.5 miles NE of Andrews Mtn., Inyo Mts. 2377 Comment
  CAS-BOT-BC210896  Achnatherum parishii subsp. depauperatum John Roos; Lucille Roos 1947-7-13 2888 Inyo East slope Baldy Pk., Panamint Mts. 2529 Comment
  CAS-BOT-BC248785  Eriogonum baileyi var. baileyi J. C. Roos; E. C. Jaeger 1955-7-21 6496 Inyo Willow Spring, Last Chance Mountains 1828 Comment
  CAS-BOT-BC249844  Eriogonum esmeraldense var. esmeraldense J. C. Roos; A. R. Roos 1955-8-26 6549 Inyo East side of saddle between Squaw Peak and Waucoba Mt., Inyo Mts. 2590 Comment
  CAS-BOT-BC260776  Chenopodium rubrum John Roos; Lucille Roos 1954-11-23 6258 Inyo Marsh at south-west side of Salt Lake, Saline Valley 323 Comment
  CAS-BOT-BC261209  Eriogonum heermannii var. humilius John Roos; Lucille Roos 1956-6-28 6171 Inyo Canyon along Loretto Road near Loretto Mine, Inyo Mts. 1615 Comment
  CAS-BOT-BC292157  Dicoria canescens J. C. Roos; Philip A. Munz 1954-9-18 20157 Inyo At s.e. end of Eureka Valley, e. of Inyo Range 914 Comment
  CAS-BOT-BC293547  Erigeron aphanactis var. aphanactis John C. Roos 1955-5-15 6380 Inyo Willow Creek, Last Chance Mts. 1584 Comment
  CAS-BOT-BC298129  Ericameria nauseosa var. oreophila John Roos; Lucille Roos 1947-9-19 2804 Inyo E slope Baldy Peak, Panamint Mts 2743 Comment
  CAS-BOT-BC413256  Oxytheca dendroidea subsp. dendroidea J. C. Roos; A. R. Roos 1954-8-15 6227 Inyo Whipoorwill (or Soldier) Flat at east side of Waucoba Mtn., Inyo Mts. 2194 Comment
  CAS-BOT-BC423256  Oxystylis lutea John Roos; Lucille Roos 1954-5-6 6072 Inyo Amargosa River bottom 4 mi. north of Shoshone. 518 Comment
  CAS-BOT-BC424467  Heuchera rubescens John Roos; Lucille Roos 1947-7-13 2883 Inyo Telescope Peak, Panamint Mts. 3291 Comment
  CAS-BOT-BC438164  Sesuvium verrucosum J. C. Roos 1955-7-24 6524 Inyo 0.5 mile east of Olancha at south end Owens Lake. 1097 Comment
  CAS-BOT-BC444426  Lewisia rediviva var. minor John Roos; Lucille Roos 1950-7-27 5825 Inyo West side Reed Flat, White Mts. 3078 Comment
  CAS-BOT-BC487783  Calochortus bruneaunis John Roos; Lucille Roos 1952-7-26 5823 Inyo East side of Reed Flat at head of Birch Creek, White Mts. 3048 Comment
  CAS-BOT-BC523866  Gilia modocensis J. C. Roos 1955-6-17 6394 Inyo 2 mi NE of Willow Spring, Last Chance Mountains 2011 Comment
  CAS-BOT-BC60736  Physaria kingii subsp. latifolia John Roos; Lucille Roos 1947-7-12 2835 Inyo Panamint Mountains. Wild Rose Canyon. 2346 Comment
  CLARK-A1528-1192  Chenopodium leptophyllum John C. Roos 1951-8-8 5112 Inyo White Mountains 3139 Comment
  CLARK-A1528-1308  Cassiope mertensiana John C. Roos 1967-9-16 Inyo Sierra Nevada Mountains 3596 Comment
  CLARK-A1528-1576  Artemisia ludoviciana John C. Roos 1961-9-2 Inyo Inyo Mountains 2804 Comment
  CLARK-A1528-1684  Brickellia multiflora John C. Roos 1961-10-22 Inyo Inyo Mountains Comment
  CLARK-A1528-1931  Hecastocleis shockleyi John C. Roos, Philip A. Munz 1955-4-8 6308 Inyo Last Chance Mountains 1310 Comment
  CLARK-A1528-2038  Brickellia multiflora John C. Roos 1956-9-30 6603 Inyo Panamint Range Comment
  CLARK-A1528-2492  Forsellesia nevadensis John C. Roos 1955-4-11 6321 Inyo 1706 Comment
Read comments
Oct 3 2014
  CLARK-A1528-2522  Atriplex hymenelytra John C. Roos 1965-7-11 Inyo Death Valley Comment
  CLARK-A1528-2582  Kochia americana John C. Roos, Lucille Roos 1947-7-15 2866 Inyo Inyo Mountains 1523 Comment
  CLARK-A1528-2747  Astragalus kentrophyta subsp. implexus John C. Roos 1937-8-5 1034 Inyo White Mountains Comment
  CLARK-A1528-2974  Eucrypta micrantha John C. Roos 1955-4-6 6296 Inyo Saline Valley Comment
  CLARK-A1528-3156  Eucnide urens John C. Roos 1965-7-9 Inyo Trona Comment
  CLARK-A1528-3559  Pinus monophylla John C. Roos 1947-7-14 2817 Inyo Panamint Mountains 2468 Comment
  CLARK-A1528-3982  Cercocarpus ledifolius John C. Roos 1955-7-21 6479 Inyo Last Chance Mountains 2377 Comment
  CLARK-A1528-4918  Stanleya elata John C. Roos 1947-7-15 2822 Inyo Argus Mountains Comment
  CLARK-A1528-5086  Tanacetum canum John C. Roos 1947-9-19 2797 Inyo Panamint Mountains 3474 Comment
  CLARK-A1528-5148  Arenaria kingii var. glabrescens John C. Roos, Alfred R. Roos 1953-8-7 5930 Inyo Inyo Mountains 2743 Comment
  CLARK-A1528-5468  Dicoria canescens subsp. clarkiae John C. Roos, Lucille Roos 1954-11-24 6266 Inyo Eureka Valley 929 Comment
  CLARK-A1528-5602  Haplopappus macronema John C. Roos 1959-8-20 Inyo White Mountains 3047 Comment
  CLARK-A1528-6100  Astragalus kentrophyta subsp. implexus John C. Roos 1967-8-5 Inyo Inyo Mountains Comment
  LA102296  Atriplex parryi John C. Roos; 1965-7-11 sn Inyo Amargosa River Comment
  LA102356  Poa nevadensis John C. Roos; Alfred R. Roos 1953-8-11 6000 Inyo Inyo Mountains, pass 3 mi. E of Blue Bell Mine on trail to Side Hill Spring 3078 Comment
  NY999424  Gayophytum decipiens J. C. Roos 1953-8-11 5999 Inyo 2½ miles east of Blue Bell Mine, Inyo Mountains 2987 Comment
  POM261192  Silene verecunda subsp. andersonii J. C. Roos 1941-8-17 59 Inyo Panamint Mountains 2439 Comment
  POM261207  Pellaea breweri J. C. Roos 1941-8-17 44 Inyo Panamint Mountains: 3048 Comment
  POM261422  Eriogonum nidularium J. C. Roos 1941-8-17 66 Inyo Wildrose Canyon at Charcoal Kilns, Panamint Mountains. Comment
  POM265655  Cleomella plocasperma J. C. Roos 1937-8-6 1960 Inyo Big Pine. Comment
  POM266315  Hulsea algida J. C. Roos 1937-8-8 1019 Inyo Slope of Mt. Whitney. Comment
  POM274225  Pyrrocoma sessiliflora J. C. Roos 1947-9-20 2815 Inyo South end Owen Lake at Olancha Comment
  POM301710  Sagittaria latifolia J. C. Roos 1937-8-4 1952 Inyo Owens River, near Lone Pine. Comment
  RSA0008802  Astragalus lentiginosus var. micans J. C. Roos 1955-5-13 6354 Inyo Southeast end of Eureka Valley, East of Inyo Mts. 930 Comment
  RSA0029713  Delphinium polycladon J. C. Roos 1937-8-8 1023 Inyo Lone Pine Canyon 2591 Comment
  RSA0097025  Lappula redowskii John C. Roos 1955-6-17 6408 Inyo 2 miles NE of Willow Spring, Last Chance Mountains. 2012 Comment
  RSA0103494  Eriastrum wilcoxii J. C. Roos 1955-6-17 6416 Inyo 2 miles NE of Willow Springs, Last Chance Mountains. 2012 Comment
  RSA0124789  Eriastrum wilcoxii J. C. Roos, L. Roos 1954-6-25 6152 Inyo Inyo Mountains: East side Badger Flat. 2652 Comment
  RSA0124799  Eriastrum wilcoxii J. C. Roos, A. R. Roos 1954-6-12 6135 Inyo North face Wild Rose Peak at head of Trail canyon. 2683 Comment
  RSA100192  Eriogonum baileyi var. baileyi J. C. Roos, A. R. Roos 1954-8-15 6228 Inyo Fla at east side of Waucoba Mountain, Inyo Mountains. 2195 Comment
  RSA104821  Cleome sparsifolia J. C. Roos 1955-5-13 6358 Inyo SE end of Eureka Valley. 945 Comment
  RSA104824  Arenaria macradenia var. macradenia J. C. Roos 1955-5-13 6355 Inyo West base Last Chance Mountains, east of Eureka Valley sand dunes 1220 Comment
  RSA104839  Dicoria clarkiae J. C. Roos 1955-5-13 6359 Inyo SE end of Eureka Valley. 945 Comment
  RSA105009  Chamaesyce fendleri J. C. Roos 1955-5-16 6383 Inyo narrow canyon along Loretto road 1.5 miles southwest of Loretto Mine 1676 Comment
  RSA155669  Eriogonum ovalifolium J. C. Roos 1955-6-17 6405 Inyo 2 miles NE of Willow Spring, Last Chance Mountains. 2012 Comment
  RSA155682  Chaenactis stevioides var. stevioides J. C. Roos 1955-6-20 6461 Inyo Last Chance Mtns near Willow Spring. 1768 Comment
  RSA155702  Solanum triflorum J. C. Roos, E. C. Jaeger 1955-7-21 6495 Inyo Willow Spring, Last Chance Mountains. 1829 Comment
  RSA155708  Eriogonum deflexum var. baratum J. C. Roos 1955-7-21 6489 Inyo Rides at crest of Last Chance Mountains 2.5 miles south of Willow Spring. 2348 Comment
  RSA155714  Cordylanthus kingii subsp. helleri J. C. Roos, A. R. Roos 1955-8-24 6536 Inyo Last Chance Mts. 1 mile south of Willoq Spring. Comment
  RSA155727  Gilia ophthalmoides J. C. Roos 1955-6-19 6438 Inyo Last Chance Mountains, 3 miles south of Willow Spring. 2287 Comment
  RSA155747  Achnatherum pinetorum J. C. Roos 1955-7-21 6480 Inyo Whitetop Peak, summit Last Chance Mountains 2500 Comment
  RSA155751  Eriogonum kearneyi subsp. monoense J. C. Roos 1955-7-20 6476 Inyo 0.1 mile NW of boundary marker # 80, Last Chance Mountains 2 miles east of Willow Spring. 2073 Comment
  RSA158999  Sesuvium verrucosum J. C. Roos 1955-7-24 6524 Inyo 0.5 mile east of Olancha at south end Owens Lake. 1098 Comment
  RSA40542  Eriogonum panamintense J. C. Roos 1947-7-15 2870 Inyo Wildrose Canyon at Kilns. Panamint Mountain Range. 2134 Comment
  RSA40543  Eriogonum nudum var. westonii J. C. Roos 1947-7-15 2871 Inyo Wildrose Canyon at Kilns, Panamint Mountains. 1433 Comment
  RSA40613  Eriogonum rixfordii J. C. Roos 1947-1-26 s.n. Inyo Death Valley: below Emigrant Spring, Emigrant Canyon. 976 Comment
  RSA450417  Brickellia incana J. C. Roos 1961-10-22 s.n. Inyo West side of Owens Lake, near Columbia Southern Chemical Company. Comment
  RSA592426  Chenopodium rubrum J. C. Roos 1965-9-18 s.n. Inyo Inyo Mountains; Darwin Mesa. Comment
  RSA71705  Eriogonum ovalifolium var. ovalifolium J. C. Roos 1952-7-31 5877 Inyo 1 mile south of Reed Flat, White Mountains. 2835 Comment
  RSA71778  Penstemon floridus J. C. Roos, L. Roos 1951-8-7 5084 Inyo West side Westgard Pass, White Mts. 2134 Comment
  RSA74561  Townsendia scapigera J. C. Roos 1951-8-9 5120 Inyo White Mountains: East side of Reed Flat. 3049 Comment
  RSA74599  Eriogonum caespitosum J. C. Roos, Lucille Roos 1952-7-27 5827 Inyo West rim of Reed Flat, White Mtns. 3110 Comment
  RSA79503  Chamaesyce fendleri J. C. Roos, A. R. Roos 1953-8-13 6022 Inyo Mazourka Canyon, Inyo Mountains. 2500 Comment
  RSA79541  Eriogonum rupinum J. C. Roos, A. R. Roos 1953-8-11 5992 Inyo 2.5 miles east of Blue Bell Mine, Inyo Mts. 2866 Comment
  RSA90547  Chenopodium rubrum J. C. Roos, L. Roos 1954-11-23 6258 Inyo Marsh at southwest side of Salt Lake, Saline Valley. 323 Comment
  RSA90549  Dichanthelium acuminatum var. fasciculatum J. C. Roos, L. Roos 1954-11-24 6262 Inyo Mouth of Beveridge Canyon, east base of Inyo Mts, Saline Valley Comment
  RSA92156  Cryptantha virginensis J. C. Roos, A. Roos 1954-6-12 6137 Inyo Wild Rose Peak, Panamint Mtns. 2759 Comment
  RSA92167  Petalonyx nitidus J. C. Roos, L. Roos 1954-6-28 6169 Inyo Loretto road, W side Eureka Valley, Inyo Mts 1677 Comment
  RSA92297  Scopulophila rixfordii J. C. Roos, L. Roos 1954-5-8 6097 Inyo Titus Canyon below Leadfield, Grapevine Mts. 1372 Comment
  RSA92433  Phacelia perityloides J. C. Roos 1954-5-8 6101 Inyo Titus Canyon, Crapevine Mts 1220 Comment
  RSA92464  Calochortus kennedyi var. munzii J. C. Roos, L. Roos 1954-5-9 6115 Inyo Wild Rose Canyon, Panamint Mtns. 1951 Comment
  RSA92467  Aliciella ripleyi J. C. Roos, L. Roos 1954-5-8 6105 Inyo Titus Canyon, Grapevine Mountains 1280 Comment
  RSA92727  Penstemon speciosus J. C. Roos, L. Roos 1954-6-29 6187 Inyo The Narrows, Marble Canyon. 2195 Comment
  RSA92729  Cleome lutea J. C. Roos, L. Roos 1954-6-29 6189 Inyo The Narrows of Marble Canyon, Inyo Mountains 2210 Comment
  RSA92730  Ribes cereum J. C. Roos 1954-6-29 6190 Inyo The Narrows of Marble Canyon, Inyo Mountains 2210 Comment
  RSA92899  Gilia ophthalmoides J. C. Roos, L. Roos 1954-5-9 6110 Inyo Mahogany Flat, Panamint Mountains. 2470 Comment
  RSA93485  Stanleya pinnata var. inyoensis J. C. Roos, L. Roos 1954-6-28 6177 Inyo Base of sand dunes, SE end Eureka Valley. 914 Comment
  SD52868  Cowania mexicana var. stansburyana J. C. Roos 1955-7-21 6492 Inyo 1.0 mile south of Willlow Spring, Last Chance Mountains. 2073 Comment
  SD52915  Aster frondosus J. C. Roos, A. R. Roos 1955-8-28 6564 Inyo West side Owens Lake, 3 miles north of Olancha. 1079 Comment
  SD52953  Cordylanthus kingii subsp. helleri John C. Roos, Alfrd R. Roos 1955-8-25 6548 Inyo Soldier Flat, east base Waucoba Mt., Inyo Mts. 2164 Comment
  SEINET2540538  Nitrophila mohavensis John C. Roos, A. R. Roos 1954-1 Inyo Comment
  UC1042995  Oxytheca dendroidea subsp. dendroidea J. C. and A. R. Roos 1954-8-14 6212 Inyo flats 1.5 mi e Andrews Mtn.; Inyo Mts. 2545 Comment
  UC1087304  Cymopterus aboriginum John C. Roos 1955-5-16 6382 Inyo 1.5 mi sw of Loretto Mine (along Loretto Road, Inyo Mountains); Inyo Mountains, Loretto Road 1676 Comment
  UC1234647  Sesuvium verrucosum J. C. Roos 1955-7-24 6524 Inyo 0.5 mi e of Olancha (at south end of Owens Lake); Owens Lake 1097 Comment
  UC1234683  Gilia ophthalmoides J. C. Roos 1955-7-22 6501 Inyo at junction of Eureka Valley and Saline Valley Roads (crest of Inyo Mountains); crest of Inyo Mountains 2240 Comment
  UC1234835  Cordylanthus kingii subsp. helleri J. C. and A. R. Roos 1955-8-24 6536 Inyo 1 mi s Willow Spring; Last Chance Mts 2255 Comment
  UC1234861  Lupinus brevicaulis J. C. Roos 1955-6-19 6434 Inyo one mile S of Willow Spring; Last Chance Mountains 2286 Comment
  UC1236225  Cymopterus aboriginum John C. Roos 1955-5-16 6382 Inyo 1.5 mi sw of Loretto Mine (along Loretto Road, Inyo Mountains); Inyo Mountains, Loretto Road 1676 Comment
  UC1236261  Astragalus coccineus John C. Roos 1955-5-16 6392 Inyo Waucoba Road 6 mi e Big Pine (w side Inyo Mts., n side rock outcrop); w side Inyo Mts., e of Big Pine 1493 Comment
  UCSB37804  Artemisia ludoviciana Roos, John 1961-9-2 Inyo In a rocky moist canyon below Side Hill Spring, Inyo Mtns. 2804 Comment
  UCSB38062  Ribes velutinum Roos, John 1965-7-10 Inyo N.E. slope of Telescope Peak; Panamint Mtns Comment
  CLARK-A1528-3425  Plantago insularis Alfred R. Roos 1937-3-23 Kern Comment
  CLARK-A1528-3679  Eriogonum nudum subsp. saxicola John C. Roos 1937-8-10 1044 Kern Bodfish Comment
  CLARK-A1528-4560  Bromus trinii John C. Roos 1969-5-10 Kern Red Rock Canyon Comment
  LA102216  Festuca arundinacea John C. Roos; 1950-7-24 4822 Kern Shafter 121 Comment
  OBI33597  Festuca arundinacea John C. Roos 1950-7-24 4822 Kern Shafter, along edge of building Comment
  POM265721  Eriogonum angulosum J. C. Roos 1937-8-10 1813 Kern Bodfish. Comment
  UCD131030  Deinandra arida J. C. Roos 1969-5-10 s.n. Kern Red Rock Canyon. Comment
  UCR23375  Pinus sabiniana John C. Roos 1937-8-10 2524 Kern Sierra Nevada Mtns., Walker Pass, east of Isabella Comment
  UCR23975  Lupinus horizontalis var. platypetalus John C. Roos 1969-5-10 s.n. Kern Western Mojave Desert, Red Rock Canyon 793 Comment
  UCR23981  Bromus trinii John C. Roos 1969-5-10 s.n. Kern Western Mojave Desert, Red Rock Canyon 793 Comment
  UCR24141  Calochortus striatus John C. Roos 1969-5-10 s.n. Kern Western Mojave Desert, Red Rock Canyon 793 Comment
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Oct 23 2014
  UCR24297  Plantago ovata Alfred R. Roos 1937-3-26 s.n. Kern San Joaquin Valley, 6 mi. east of Maricopa 213 Comment
  UCR25940  Atriplex rosea John C. Roos 1949-11-27 4702 Kern Tehachapi Mtns., Monolith Dry Lake [= Proctor Lake] 1204 Comment
  CLARK-A1528-2388  Isomeris arborea var. globosa John C. Roos 1937-3-26 1323 Kern Comment
  CLARK-A1528-2500  Atriplex phyllostegia John C. Roos 1940-6-25 1891 Kern Bakersfield Comment
  OBI40502  Atriplex prostrata J. C. Roos 1949-11-27 4701 Kern Monolith Dry Lake 1204 Comment
  POM265633  Eriogonum nudum var. pubiflorum J. C. Roos 1937-8-10 1044 Kern Bodfish. Comment
  POM265722  Eriogonum roseum J. C. Roos 1937-8-10 1045 Kern Hills north of Caliente. Comment
  POM262793  Ptelea baldwinii subsp. crenulata J. C. Roos 1939-4-22 287 Lake W shore of Clear Lake. Comment
  RSA44879  Lactuca saligna J. C. Roos 1948-8-31 3932 Lake Lakeport. Comment
  CLARK-A1528-1207  Lycium cooperi John C. Roos 1937-5-31 690 Los Angeles Comment
  CLARK-A1528-1599  Artemisia tridentata subsp. parishii John C. Roos 1942-10-31 2580 Los Angeles Placerita Canyon Comment
  CLARK-A1528-1893  Haplopappus venetus John C. Roos 1942-9-12 1720 Los Angeles Comment
  CLARK-A1528-1908  Helianthus annuus John C. Roos 1942-9-26 1714 Los Angeles Westwood Village Comment
  CLARK-A1528-2288  Arabis platysperma John C. Roos 1937-7-16 2414 Los Angeles San Gabriel Mountains Comment
  CLARK-A1528-2328  Lepidium pinnatifidum John C. Roos 1956-6-15 Los Angeles Westwood Comment
  CLARK-A1528-2645  Zauschneria cana John C. Roos 1941-10-11 866 Los Angeles Santa Monica Mountains Comment
  CLARK-A1528-2915  Quercus agrifolia Alfred R. Roos 1937-12-15 Los Angeles Santa Monica Mountains Comment
  CLARK-A1528-2923  Quercus engelmannii John C. Roos 1946-10-12 3131 Los Angeles Monrovia Comment
  CLARK-A1528-3239  Sida leprosa var. hederacea John C. Roos 1942-9-5 1744 Los Angeles Westwood Village Comment
  CLARK-A1528-3459  Allophyllum gilioides John C. Roos 1937-5-31 1541 Los Angeles San Gabriel Mountains Comment
  CLARK-A1528-3495  Eriastrum sapphirinum John C. Roos 1937-7-7 1768 Los Angeles La Crescenta Comment
  CLARK-A1528-3593  Dryopteris arguta John C. Roos 1942-3-21 1099 Los Angeles San Gabriel Mountains Comment
  CLARK-A1528-3622  Eriogonum cinereum John C. Roos 1942-9-26 1727 Los Angeles Santa Monica Comment
  CLARK-A1528-3730  Eriogonum davidsonii John C. Roos 1937-7-18 403 Los Angeles San Antonio Canyon 914 Comment
  CLARK-A1528-3900  Ceanothus spinosus John C. Roos 1942-3-14 997 Los Angeles Santa Monica Mountains Comment
  CLARK-A1528-4119  Ribes californicum var. hesperium John C. Roos 1942-3-21 Los Angeles San Gabriel Mountains Comment
  CLARK-A1528-4120  Ribes californicum var. hesperium John C. Roos 1966-2-4 Los Angeles Claremont Comment
  CLARK-A1528-4157  Ribes viburnifolium John C. Roos 1966-2-26 Los Angeles Claremont Comment
  CLARK-A1528-4586  Digitaria ischaemum John C. Roos 1949-10-19 4692 Los Angeles San Gabriel 121 Comment
  CLARK-A1528-4718  Lolium perenne subsp. multiflorum John C. Roos 1947-10-12 Los Angeles West Los Angeles Comment
  CLARK-A1528-4728  Melica imperfecta John C. Roos 1937-4-21 Los Angeles Claremont Comment
  CLARK-A1528-4844  Polypogon semiverticillatus John C. Roos 1942-5-22 Los Angeles Hollywood Comment
  CLARK-A1528-4913  Astragalus bicristatus John C. Roos 1937-5-31 491 Los Angeles San Gabriel Mountains Comment
  CLARK-A1528-4928  Chaenactis santolinoides John C. Roos 1937-5-31 2035 Los Angeles San Gabriel Mountains Comment
  CLARK-A1528-4981  Lupinus longifolius John C. Roos 1937-6-29 1707 Los Angeles Santa Monica Mountains Comment
  CLARK-A1528-5113  Nicotiana glauca John C. Roos 1942-9-20 1746 Los Angeles West Los Angeles Comment
  POM263030  Eriogonum saxatile J. C. Roos 1937-7-16 373 Los Angeles Mt. San Antonio [Los Angeles - San Bernardino counties]. 2744 Comment
  POM263282  Mentzelia congesta J. C. Roos 1937-5-31 547 Los Angeles Big Pines. Comment
  POM263552  Allium monticola J. C. Roos 1937-7-16 636 Los Angeles Los Angeles - San bernardino counties. Mt. San Antonio 2744 Comment
  POM265798  Malacothamnus fasciculatus John Roos 1942-8-27 1730 Los Angeles mouth of Mandeville Canyon, west LA Comment
  POM265806  Ceanothus spinosus J. C. Roos 1942-3-14 997 Los Angeles Sepulveda Canyon, W Los Angeles Comment
  POM266288  Corethrogyne filaginifolia J. C. Roos 1937-8-11 2543 Los Angeles Gorman, Tehachapi Mts. Comment
  POM266289  Corethrogyne filaginifolia var. filaginifolia J. C. Roos 1942-9-12 1719 Los Angeles Westwood Village. Comment
  RSA0021116  Ribes lasianthum J. C. Roos 1937-5-31 10 Los Angeles Big Pines. Comment
  RSA40561  Notholaena californica subsp. leucophylla J. C. Roos 1946-11-23 3160 Los Angeles Placerita canyon, east of Newhall Comment
  RSA450229  Ribes malvaceum var. viridifolium J. C. Roos 1966-2-11 s.n. Los Angeles Claremont. Comment
  RSA48849  Artemisia tridentata subsp. parishii J. C. Roos 1949-11-27 4704 Los Angeles Flats 4 miles east of Palmdale. 823 Comment
  RSA591764  Atriplex argentea subsp. expansa J. C. Roos 1947-7-21 s.n. Los Angeles Lancaster. Comment
  RSA648671  Melica stricta J. C. Roos 1937-5-31 611 Los Angeles Big Pines. Comment
  RSA658859  Phacelia cicutaria var. hispida J. C. Roos 1947-5-17 3627 Los Angeles Placerita Canyon east of Newhall. Comment
  RSA659472  Clarkia unguiculata J. C. Roos 1947-5-17 3626 Los Angeles Placerita Canyon east of Newhall. Comment
  RSA89979  Chloris gayana J. C. Roos, A. R. Roos 1950-9-16 4987 Los Angeles Los Angeles. 61 Comment
  UC1023388  Cyclospermum leptophyllum John C. Roos 1951-8-1 5079 Los Angeles Los Angeles; Overland, near Santa Monica Blvd 60 Comment
  UCR18898  Atriplex polycarpa Alfred R. Roos 1948-9-15 s.n. Los Angeles Transverse Range/Mojave Desert, Mint Canyon, south of Palmdale Comment
  UCR18945  Quercus lobata John C. Roos 1946-11-23 3157 Los Angeles Transverse Range, Placerita Canyon [in Santa Clarita] Comment
  UCR19499  Perityle emoryi John C. Roos 1948-8-26 s.n. Los Angeles South Coast, Malibu 6 Comment
  UCR23420  Amaranthus palmeri Alfred R. Roos 1945-10-23 s.n. Los Angeles San Fernando Valley, [Mission Hills], Sepulveda & Devonshire Blvds. Comment
  UCR23433  Sisymbrium orientale John C. Roos 1954-4-30 s.n. Los Angeles Los Angeles, along a parking strip at Boyle St, and New Jersey St. 104 Comment
  UCR23463  Alchemilla arvensis John C. Roos 1965-3-13 s.n. Los Angeles San Gabriel Valley, Huntington Gardens, San Marino 213 Comment
  UCR23668  Geranium robertianum Alfred R. Roos 1958-6-3 s.n. Los Angeles Evans and Reeves Nursery, Brentwood, West Los Angeles Comment
Read comments
Apr 11 2012
  UCR23713  Polycarpon tetraphyllum John C. Roos 1942-5-23 1061 Los Angeles Monrovia, 300 block on E Lime St. 179 Comment
  UCR23727  Cotula australis John C. Roos 1942-2-28 1004 Los Angeles San Gabriel Valley, Pomona, 737 East Phillips St. 250 Comment
  UCR23819  Hedypnois cretica Alfred R. Roos 1954-5-17 s.n. Los Angeles Hollywood, near North Kenmore & Oakdale [=Oakwood?] Streets 91 Comment
  UCR24293  Stipa cernua John C. Roos 1945-3-14 s.n. Los Angeles Los Angeles, Olympic Blvd., west of Fox Studios Comment
  UCR24308  Meconella denticulata John C. Roos 1942-5-23 1069 Los Angeles San Gabriel Mtns., Santa Anita Canyon Comment
  UCR24357  Ambrosia confertiflora John C. Roos 1942-10-10 1722 Los Angeles Westwood Village, Malcolm Ave. and Santa Monica Blvd. 98 Comment
  UCR24421  Ribes californicum var. hesperium John C. Roos 1944-2-5 2765 Los Angeles Western Transverse Range; Santa Monica Mtns., Mandeville Canyon, West Los Angeles 350 Comment
  UCR24490  Penstemon heterophyllus John C. Roos 1942-6-6 984 Los Angeles Western Transverse Range, Placerita Canyon near Newhall 610 Comment
  UCR25063  Muhlenbergia rigens Alfred R. Roos 1937-7-18 5212 Los Angeles San Gabriel Mtns., Mt. Wilson grade Comment
  UCR25180  Ribes roezlii var. roezlii John C. Roos 1951-8-30 5077 Los Angeles San Gabriel Mtns, Big Rock Creek north of Mt. Baden-Powell 1829 Comment
  UCR25289  Plantago virginica Alfred R. Roos 1954-6-3 s.n. Los Angeles Los Angeles Basin, Parking strip at Oakwood and N. New Hampshire Streets, Hollywood Comment
  UCR25466  Agrostis stolonifera John C. Roos 1950-9-16 4988 Los Angeles Los Angeles, Santa Monica Blvd. at Midvale Ave. 61 Comment
  UCR26171  Camissonia cheiranthifolia Alfred R. Roos 1956-5-22 s.n. Los Angeles South Coast, sand dunes in El Segundo, near Hyperion 9 Comment
  UCR26255  Mentzelia congesta John C. Roos 1937-5-31 547 Los Angeles San Gabriel Mtns., Big Pines 2195 Comment
  UCSB41546  Ribes divaricatum var. parishii Roos, John; Roos, Lucille 1951-3-10 Los Angeles San Gabriel River at Whittier Narrows 60 Comment
  CAS-BOT-BC365844  Soliva sessilis A. R. Roos 1958-5-16 s.n. Los Angeles On the lawn of the Ambassador Hotel, Wilshire Blvd., Los Angeles Comment
  CLARK-A1528-1305  Erodium botrys John C. Roos 1943-3-27 2622 Los Angeles West Los Angeles 0 Comment
  CLARK-A1528-1519  Bloomeria crocea John C. Roos 1947-5-11 3606 Los Angeles Pomona Comment
  CLARK-A1528-1935  Hedypnois cretica Alfred R. Roos 1954-5-17 Los Angeles Hollywood 91 Comment
  CLARK-A1528-2102  Soliva sessilis Alfred R. Roos 1958-5-16 Los Angeles Comment
  CLARK-A1528-2158  Haplopappus parishii John C. Roos 1941-10-4 864 Los Angeles San Gabriel Mountains 1219 Comment
  CLARK-A1528-2878  Trifolium dubium Alfred R. Roos 1954-5-29 Los Angeles Los Angeles Comment
  CLARK-A1528-2997  Phacelia cicutaria subsp. hispida John C. Roos 1947-5-4 3603 Los Angeles Pomona Comment
  CLARK-A1528-4894  Chenopodium pumilio John C. Roos 1942-6-17 1276 Los Angeles West Los Angeles Comment
  CLARK-A1528-5649  Spergularia villosa John C. Roos 1950-4-1 4719 Los Angeles 60 Comment
  OBI32732  Geranium robertianum A. R. Roos 1958-6-3 s.n. Los Angeles Evans-Reserve Nursery, Brentwood, W Los Angeles Comment
  POM263275  Phacelia viscida J. C. Roos 1937-7-7 404 Los Angeles On earth fill, La Crescenta Comment
  POM263547  Phacelia fremontii J. C. Roos 1937-3-25 680 Los Angeles 20 miles E of Palmdale Comment
  POM265716  Atriplex lentiformis subsp. breweri J. C. Roos 1942-9-12 1724 Los Angeles Northwest of Santa Monica. Comment
  POM266305  Bidens pilosa J. C. Roos 1942-9-12 1721 Los Angeles parkways, Santa Monica Comment
  POM301612  Triodanis biflora J. C. Roos 1942-5-23 1068 Los Angeles near Chantry Flats, Santa Anita Canyon. Comment
  RSA0008286  Ribes divaricatum var. parishii J. C. Roos 1951-3-10 5032 Los Angeles San Gabriel River at Whittier Narrows. 61 Comment
  RSA0049524  Cercocarpus betuloides J. C. Roos 1942-3-7 1104 Los Angeles Big Tujunga Canyon, San Gabriel Mtsn. Comment
  RSA309653  Hedypnois cretica A. R. Roos 1954-5-17 s.n. Los Angeles Hollywood, near North Kenmore & Oakdale Streets. 91 Comment
  RSA659192  Geranium robertianum A. R. Roos 1958-6-3 s.n. Los Angeles Evans-Reeves Nursery, Brentwood, West Los Angeles. Comment
  RSA662068  Trifolium dubium A. R. Roos 1954-5-29 s.n. Los Angeles Hollywood parking lot. Comment
  UCSB37381  Soliva sessilis Roos, Alfred 1958-5-16 Los Angeles Lawn of the Ambassador Hotel, Wilshire Blvd., Los Angeles Comment
  CLARK-A1528-3053  Rhododendron occidentale John C. Roos 1937-6-18 Mariposa Wawona 1341 Comment
  POM266489  Melica stricta J. C. Roos 1942-7-1 1256 Mariposa Rocky gorge north of Nevada Falls, Yosemite National Park. Comment
  RSA78233  Lupinus vallicola subsp. vallicola J. C. Roos, Lucille Roos, A. R. Roos 1951-5-27 5052 Mariposa About 8 miles east of Marposa. 1006 Comment
  RSA78389  Triteleia ixioides subsp. scabra J. C. Roos 1951-5-27 5049 Mariposa 8 miles E of Mariposa. 1006 Comment
  UCR25159  Mimulus pulchellus John C. Roos, L. Roos 1951-5-26 5043 Mariposa Sierra Nevada Mtns, hills about 7 miles east of Mariposa 1037 Comment
  UCR25166  Nemophila maculata John C. Roos, L. Roos 1951-5-26 5040 Mariposa Sierra Nevada Mtns, hills about 7 miles east of Mariposa 1037 Comment
  UCR25168  Aira caryophyllea John C. Roos 1951-5-26 5038 Mariposa Sierra Nevada Mtns, hills about 7 miles east of Mariposa 1037 Comment
  UCR25325  Eriogonum incanum John C. Roos 1942-6-25 1264 Mariposa Sierra Nevada Mtns., Yosemite National Park, top of Half Dome 2683 Comment
  UCR25334  Chorizanthe membranacea John C. Roos 1958-6-20 s.n. Mariposa J.J. Paulson Ranch - Mariposa 597 Comment
  UCR26304  Quercus wislizeni John C. Roos 1948-11-27 4081 Mariposa Mariposa Comment
  UCSB41537  Mimulus pulchellus Roos, John; Roos, Lucille 1951-5-26 Mariposa Hills about 7 miles east of Mariposa 914 Comment
  CLARK-A1528-2442  Arenaria douglasii John C. Roos, Lucille Roos 1951-5-27 5054 Mariposa Comment
  CLARK-A1528-2664  Calocedrus decurrens John C. Roos 1942-12-25 2589 Mariposa Sierra National Forest 1036-1219 Comment
  POM301680  Calocedrus decurrens J. C. Roos 1942-12-25 2589 Mariposa Chowchilla Range, east Mariposa Co. 1098 Comment
  RSA648016  Aesculus californica Roos 1958-6-20 s.n. Mariposa Paulson Ranch-Mariposa. Comment
  CAS-BOT-BC185420  Calamagrostis bolanderi J. C. Roos; D. V. Hemphill 1957-7-1 6634 Mendocino Albion Ridge Comment
  CLARK-A1528-1937  Helenium bolanderi John C. Roos 1957-7-2 6640 Mendocino Point Arena Comment
  CLARK-A1528-2797  Lotus formosissimus John C. Roos 1957-7-1 6632 Mendocino Albion Ridge Comment
  CLARK-A1528-5117  Armeria maritima John C. Roos 1957-7-2 6639 Mendocino Point Arena Comment
  UCR25304  Aira praecox John C. Roos 1957-7-2 6637 Mendocino Point Arena Lighthouse, on the coast 15 Comment
  UCR25307  Castilleja ambigua John C. Roos 1957-7-2 6642 Mendocino Point Arena Lighthouse, on the coast 15 Comment
  UCR25315  Deschampsia cespitosa subsp. holciformis John C. Roos 1957-7-2 6638 Mendocino Point Arena Lighthouse, on the coast 15 Comment
  UCSB45590  Aira praecox John C. Roos 1957-7-2 6637 Mendocino collected close to Point Arena Lighthouse Point Arena Lighthouse Comment
  CLARK-A1528-2005  Madia madioides John C. Roos 1957-6-30 6619 Mendocino Albion 6 Comment
  CAS-BOT-BC102751  Populus tremuloides John Roos; Lucille Roos 1952-7-30 5872 Mono Crooked Creek, White Mts. 3078 Comment
  CLARK-A1528-1562  Artemisia cana John C. Roos, Lucille Roos 1952-7-30 5865 Mono White Mountains 2895 Comment
  CLARK-A1528-1608  Aster fremontii John C. Roos, Lucille Roos 1952-7-30 5863 Mono White Mountains 2834 Comment
  CLARK-A1528-3144  Monardella linoides John C. Roos 1960-7-4 Mono White Mountains Comment
  CLARK-A1528-3857  Delphinium glaucum John C. Roos, Lucille Roos 1952-7-30 5861 Mono White Mountains 2743 Comment
  CLARK-A1528-4274  Mimulus rubellus John C. Roos, Lucille Roos 1951-8-10 5154 Mono White Mountains 4023 Comment
  CLARK-A1528-4321  Scrophularia desertorum John C. Roos 1960-7-4 Mono White Mountains Comment
  CLARK-A1528-4697  Koeleria cristata John C. Roos 1951-8-8 5105 Mono White Mountains 3200 Comment
  CLARK-A1528-4698  Koeleria cristata John C. Roos, Lucille Roos 1951-8-10 5157 Mono White Mountains 3962 Comment
  CLARK-A1528-4824  Poa lettermanii John C. Roos, Lucille Roos 1951-8-10 5149 a Mono White Mountains 4266 Comment
  RSA45495  Chrysothamnus parryi subsp. asper J. C. Roos, L. Roos 1948-9-7 3993 Mono Crestview. Comment
  RSA71375  Erigeron vagus J. C. Roos, L. Roos 1951-8-10 5146 Mono NE face White Mt. Peak, White Mountains 4299 Comment
  RSA71381  Lewisia glandulosa J. C. Roos 1951-8-10 5153 Mono Flats 1 mile SE of White Mountain Peak, White Mountains. 4024 Comment
  RSA71385  Koeleria macrantha L. Roos 1951-8-10 5157 Mono 1 mile SE of White Mtn. Peak, White Mts. 3963 Comment
  RSA71407  Erysimum capitatum J. C. Roos, L. Roos 1951-8-11 5180 Mono NW end Big Prospector Meadow, White Mtns. 3262 Comment
  RSA71680  Agoseris monticola J. C. Roos, L. Roos 1951-8-10 5131 Mono 1.5 miles north of Piute Mtn. White Mts. 3262 Comment
  RSA71700  Leucopoa kingii J. C. Roos, L. Roos 1952-7-30 5873 Mono Crooked Creek, White mountains 3079 Comment
  RSA71701  Populus tremuloides J. C. Roos, Lucille Roos 1952-7-30 5872 Mono Crooked Creek. White Mtns. 3079 Comment
  RSA77257  Oxyria digyna J. C. Roos, L. Roos 1951-8-10 5150 Mono Flats 1 mile SE of White Mountain Peak, White Mountains. 4024 Comment
  UC1010188  Potentilla pseudosericea John and Lucille Roos 1951-8-10 5140 Mono saddle 1 mi se White Mountain Peak; White Mountains, se of White Mountain 3962 Comment
  UCR19119  Smilacina stellata John C. Roos 1960-7-4 s.n. Mono White Mtns, Crooked Creek 3293 Comment
  UCR24847  Eriogonum spergulinum John C. Roos 1948-9-7 3989 Mono Eastern Sierra Nevada Mtns., Crestview 2326 Comment
  UCR25302  Gentiana tenella John C. Roos 1959-8-23 s.n. Mono White Mtns., Cottonwood Creek 3049 Comment
  UCR26315  Botrychium simplex John C. Roos 1960-7-11 s.n. Mono White Mountains, Crooked Creek. 2888 Comment
  CAS-BOT-BC260414  Achnatherum hymenoides J. C. Roos; A. R. Roos 1953-8-13 6013 Mono Crest of Inyo Mountains, 3 miles E of Badger Flat 3169 Comment
  CAS-BOT-BC339826  Solidago multiradiata John Roos; Lucille Roos 1951-8-10 5162 Mono NE face Sheep Mtn., White Mts. 3505 Comment
  CAS-BOT-BC444295  Lewisia pygmaea John Roos; Lucille Roos 1951-8-10 5153 Mono Flats 1 mile SE of White Mtn. Peak, White Mts. 4023 Comment
  CLARK-A1528-5636  Lappula floribunda John C. Roos 1937-8-5 1841 Mono White Mountains Comment
  CLARK-A1528-5710  Gentiana newberryi John C. Roos 1948-9-7 4006 Mono Comment
  LA102218  Sphaeromeria cana John C. Roos; 1948-9-7 4001 Mono Sierra Nevada, Tioga Pass 2743 Comment
  RSA0087206  Orobanche fasciculata John Roos, Lucille Roos 1952-7-30 5867 Mono Along Crooked Creek, White Mts. 2865 Comment
  RSA71403  Antennaria rosea J. C. Roos, L. Roos 1951-8-11 5176 Mono East slope Sheep Mtn., White Mts. 3506 Comment
  RSA71743  Scrophularia californica var. desertorum J. C. Roos, L. Roos 1952-7-30 5860 Mono Crooked Creek, White Mtns. 2744 Comment
  RSA71760  Nama densa J. C. Roos, L. Roos 1951-8-8 5106 Mono Big Prospector Meadow at head of Crooked Creek, White Mtns. 3201 Comment
  UCSB72193  Comastoma tenellum Roos, John 1959-8-23 Mono Cottonwood Creek 2895 Comment
  CLARK-A1528-2913  Quercus wislizeni John C. Roos 1939-4-16 284 Napa Angwin Comment
  CLARK-A1528-4596  Echinochloa crus-galli John C. Roos 1939-5-7 262 Napa Angwin Comment
  POM262790  Quercus X morehus J. C. Roos 1939-4-16 281 Napa Angwin, Howell Mtn. Comment
  POM262887  Saxifraga californica J. C. Roos 1939-3-27 304 Napa Snell Valley Comment
  POM262893  Melica californica var. nevadensis J. C. Roos 1939-4-15 319 Napa Pope Valley. Comment
  POM263489  Madia nutans J. C. Roos 1939-4-16 258 Napa Angwin. Comment
  RSA450207  Calochortus amabilis J. C. Roos 1939-3-27 305 Napa Snell Valley, Pacific Union College, Angwin Comment
  RSA450311  Erythronium californicum J. C. Roos 1938-4-4 1632 Napa Pacific Union College, Angwin. Comment
  UCR23701  Parvisedum pumilum John C. Roos 1939-4-18 296 Napa North Coast Range, Deer Lake. [near] Pacific Union College, Angwin 610 Comment
  UCR23952  Amorpha californica var. napensis John C. Roos 1939-4-29 289 Napa North Coast Range, Pacific Union College, Angwin 549 Comment
  UCR24432  Mimulus douglasii John C. Roos 1939-3-18 303 Napa North Coast Range, Snell Valley, [near] Pacific Union College, Angwin 183 Comment
  UCR25296  Centaurea calcitrapa John C. Roos 1957-6-28 6616 Napa Napa Comment
  UCR30481  Ribes divaricatum John C. Roos 1939-4-1 312 Napa W of Calistoga Comment
  UCR30532  Festuca microstachys John C. Roos 1939-4-15 318 Napa North Coast Range, Pope Valley, [near] Pacific Union College, Angwin 240 Comment
  UCR30537  Danthonia californica John C. Roos 1939-5-13 272 Napa North Coast Range, Pacific Union College, Angwin 503 Comment
  CLARK-A1528-1859  Gnaphalium peregrinum John C. Roos 1965-6-16 Orange Dana Point Comment
  CLARK-A1528-1975  Jaumea carnosa John C. Roos 1949-10-1 4682 Orange Doheney Beach Comment
  CLARK-A1528-3481  Linanthus nuttallii subsp. floribundus John C. Roos 1937-5-10 2073 Orange Comment
  CLARK-A1528-3600  Chorizanthe fimbriata John C. Roos 1965-6-16 Orange Comment
  CLARK-A1528-3899  Ceanothus papillosus subsp. roweanus John C. Roos 1960-5-30 Orange Santa Ana Mountains 1066 Comment
  CLARK-A1528-4065  Populus trichocarpa Alfred R. Roos 1936-2-9 1535 Orange Santa Ana Canyon Comment
  CLARK-A1528-4151  Ribes speciosum John C. Roos 1962-5-6 Orange Santa Ana Mountains Comment
  CLARK-A1528-4285  Orthocarpus purpurascens John C. Roos 1965-6-16 Orange Dana Point Comment
  CLARK-A1528-4911  Atriplex semibaccata John C. Roos 1949-10-10 4679 Orange Doheney Beach Comment
  POM262908  Spartina foliosa J. C. Roos 1937-9-1 427 Orange Seal Beach. Comment
  UCR25309  Mesembryanthemum crystallinum John C. Roos 1965-6-16 s.n. Orange Dana Point Comment
  UCR25956  Senna marilandica John C. Roos 1937-8-31 521 Orange San Juan Capistrano [beach] Comment
  RSA48861  Chenopodium macrospermum var. farinosum J. C. Roos 1949-10-1 4681 Orange Doheney Beach. [Now Capistrano Beach] Comment
  UCSB37368  Amaranthus hybridus Roos, Alfred 1937-12-2 Orange Santa Ana Comment
  CAS-BOT-BC106178  Brickellia desertorum J. C. Roos 1950-11-25 5026 Riverside Dry hills at north end Perris Blvd., Sunnymead. 609 Comment
  CAS-BOT-BC145639  Bouteloua curtipendula var. caespitosa John C. Roos 1946-8-27 2786 Riverside Near Pinon Flats, Santa Rosa Mountains. 1371 Comment
  CAS-BOT-BC147178  Rubus parviflorus J. C. Roos 1965-7-3 s.n. Riverside Dark Canyon, San Jacinto Mtns. Comment
  CAS-BOT-BC150870  Diplacus puniceus John C. Roos 1952-5-14 5665 Riverside Hills 2 miles northwest of Perris 502 Comment
  CAS-BOT-BC186906  Astragalus insularis var. harwoodii J. C. Roos 1958-3-15 s.n. Riverside Chuckwalla Mtns., 3 miles SE of Desert Center Comment
  CAS-BOT-BC206920  Euonymus occidentalis J. C. Roos 1965-7-3 s.n. Riverside Dark Canyon, San Jacinto Mtns. Comment
  CAS-BOT-BC207045  Bernardia incana John C. Roos 1950-12-2 5027 Riverside Monson Canyon, Eagle Mts. 1066 Comment
  CAS-BOT-BC274062  Imperata brevifolia J. C. Roos 1965-6-23 s.n. Riverside Palm Springs Comment
  CAS-BOT-BC278488  Eriochloa aristata J. C. Roos 1965-9-26 s.n. Riverside In Indio Comment
  CAS-BOT-BC67842  Marsilea vestita John C. Roos 1952-5-21 5704 Riverside San Jacinto river bottomland 1 1/2 miles southeast of Perris 426 Comment
  CLARK-A1528-106  Tetragonia tetragonioides John C. Roos 1951-9-25 5288 Riverside Riverside 259 Comment
  CLARK-A1528-1169  Helianthemum scoparium John C. Roos 1947-5-24 3642 Riverside San Jacinto Mountains 1158 Comment
  CLARK-A1528-1182  Quercus dunnii John C. Roos 1956-9-14 3016 Riverside San Jacinto Mountains 1371 Comment
  CLARK-A1528-1201  Aesculus californica John C. Roos 1966-1-1 Riverside Box Springs Mountains 579 Comment
Read comments
Nov 26 2016
  CLARK-A1528-1252  Sporobolus cryptandrus John C. Roos 1946-9-14 3005 Riverside San Jacinto Mountains Comment
  CLARK-A1528-1263  Aristida californica John C. Roos 1946-9-14 3007 Riverside Dos Palmas Spring 1066 Comment
  CLARK-A1528-1368  Beloperone californica John C. Roos 1965-9-26 Riverside Santa Rosa Mountains Comment
  CLARK-A1528-1375  Acer negundo subsp. californicum John C. Roos 1952-6-25 5790 Riverside Fairmont Park Comment
  CLARK-A1528-1432  Cymopterus panamintensis var. acutifolius John C. Roos 1948-5-15 3842 Riverside Eagle Mountains Comment
  CLARK-A1528-1453  Sanicula tuberosa John C. Roos 1950-4-22 4755 Riverside Reche Canyon 761 Comment
  CLARK-A1528-1455  Sanicula tuberosa John C. Roos 1937-3-6 1304 Riverside Reche Canyon Comment
  CLARK-A1528-1529  Acamptopappus shockleyi John C. Roos 1937-4-18 2483 Riverside San Jacinto Mountains Comment
Read comments
Oct 2 2018
  CLARK-A1528-1572  Artemisia dracunculus John C. Roos 1937-8-17 1615 Riverside San Jacinto Comment
  CLARK-A1528-1624  Baccharis emoryi John C. Roos 1965-10-7 Riverside Fairmont Park Comment
  CLARK-A1528-1631  Baccharis sergiloides John C. Roos 1949-9-17 4660 Riverside Whitewater Wash 609 Comment
  CLARK-A1528-1638  Baccharis glutinosa John C. Roos 1951-10-24 5346 Riverside Santa Ana River 259 Comment
  CLARK-A1528-164  Baccharis douglasii John C. Roos 1951-9-25 5284 Riverside Riverside 259 Comment
  CLARK-A1528-1652  Bidens frondosa John C. Roos 1951-9-25 5265 Riverside Riverside 259 Comment
  CLARK-A1528-1656  Brickellia arguta John C. Roos 1948-5-1 3813 Riverside Whitewater Comment
  CLARK-A1528-1661  Brickellia californica John C. Roos 1951-10-19 5324 Riverside Jackrabbit Trail 609 Comment
  CLARK-A1528-1667  Brickellia desertorum John C. Roos 1946-9-14 3023 Riverside San Jacinto Mountains 1097 Comment
  CLARK-A1528-1668  Brickellia desertorum John C. Roos 1950-9-30 4996 Riverside Riverside 396 Comment
  CLARK-A1528-1671  Brickellia desertorum John C. Roos 1947-11-1 3752 Riverside Eagle Mountains Comment
  CLARK-A1528-1673  Brickellia incana John C. Roos 1947-11-1 3751 Riverside Eagle Mountains Comment
  CLARK-A1528-1675  Brickellia incana John C. Roos 1965-6-23 Riverside Lost Palms Wash Comment
  CLARK-A1528-171  Bidens frondosa John C. Roos 1951-9-25 5265 Riverside Riverside 259 Comment
  CLARK-A1528-172  Bidens laevis John C. Roos 1951-9-25 5266 Riverside Riverside 259 Comment
  CLARK-A1528-1731  Chrysothamnus paniculatus John C. Roos 1965-11-6 Riverside Whitewater 304 Comment
  CLARK-A1528-174  Brickellia californica John C. Roos 1951-10-19 5324 Riverside Badlands 609 Comment
  CLARK-A1528-1761  Chaetopappa aurea John C. Roos 1965-7-22 Riverside San Jacinto Mountains Comment
  CLARK-A1528-1768  Chrysopsis villosa John C. Roos 1965-9-16 Riverside Hemet Comment
  CLARK-A1528-1771  Chrysopsis villosa John C. Roos 1965-8-18 Riverside San Jacinto Mountains Comment
  CLARK-A1528-1777  Cirsium occidentale John C. Roos 1952-4-13 5523 Riverside Box Springs Mountains 487 Comment
  CLARK-A1528-1794  Calycadenia tenella John C. Roos 1952-7-19 5816 Riverside Santa Ana Mountains 761 Comment
  CLARK-A1528-180  Centaurea solstitialis John C. Roos 1951-9-25 5253 Riverside Riverside Comment
  CLARK-A1528-1804  Eclipta alba John C. Roos 1965-7-5 Riverside Thermal 36 Comment
  CLARK-A1528-1843  Filago depressa John C. Roos 1952-4-23 5580 Riverside Box Springs Mountain 457 Comment
  CLARK-A1528-1903  Haplopappus pinifolius John C. Roos 1952-8-27 5894 Riverside Pigeon Pass 487 Comment
  CLARK-A1528-1924  Hemizonia pungens John C. Roos 1937-5-10 2452 Riverside Lake Elsinore Comment
  CLARK-A1528-1984  Layia platyglossa John C. Roos 1952-4-13 5525 Riverside Box Springs Mountains 487 Comment
  CLARK-A1528-2001  Machaeranthera cognata John C. Roos 1947-1-2 3226 Riverside Painted Canyon Comment
  CLARK-A1528-2007  Malacothrix clevelandii John C. Roos 1954-5-15 6119 Riverside Reche Canyon 731 Comment
  CLARK-A1528-2063  Porophyllum gracile John C. Roos 1946-11-30 3169 Riverside Chuckwalla Mountains Comment
  CLARK-A1528-2068  Psilocarphus brevissimus John C. Roos 1937-5-10 2498 Riverside Lake Elsinore Comment
  CLARK-A1528-2075  Rafinesquia neomexicana John C. Roos 1947-3-1 3304 Riverside Garnet Comment
  CLARK-A1528-2132  Trixis californica John C. Roos 1947-2-15 3251 Riverside Eagle Mountains Comment
  CLARK-A1528-2172  Lepidospartum squamatum John C. Roos 1963-11-15 Riverside Coachella Valley upper end of valley, Colorado Desert; in a rocky wash; ; Whitewater 7.5'Q 426 Comment
  CLARK-A1528-2223  Cryptantha micrantha John C. Roos 1949-4-11 4239 Riverside Chuckwalla Mountains Comment
  CLARK-A1528-2248  Pectocarya linearis subsp. ferocula John C. Roos 1937-3-24 1338 Riverside Pigeon Pass Comment
  CLARK-A1528-2259  Plagiobothrys californicus John C. Roos 1952-2-29 5368 Riverside Reche Canyon 457 Comment
  CLARK-A1528-2298  Athysanus pusillus John C. Roos 1967-2-25 Riverside Box Springs Mountains Comment
  CLARK-A1528-2318  Lepidium dictyotum John C. Roos 1950-3-18 Riverside La Sierra College Comment
  CLARK-A1528-2359  Simmondsia chinensis John C. Roos 1966-3-20 Riverside Eagle Mountains Comment
  CLARK-A1528-2409  Lonicera subspicata var. johnstonii John C. Roos 1952-7-16 5813 Riverside 487 Comment
  CLARK-A1528-2460  Silene antirrhina John C. Roos 1952-4-28 5590 Riverside Box Springs Mountains 396 Comment
  CLARK-A1528-2546  Atriplex coronata var. notatior John C. Roos 1965-6-30 Riverside Perris Comment
  CLARK-A1528-2611  Cressa truxillensis John C. Roos 1937-5-10 2074 Riverside Lake Elsinore Comment
  CLARK-A1528-2617  Crassula aquatica John C. Roos 1952-4-9 5514 Riverside Edgemont 487 Comment
  CLARK-A1528-263  Machaeranthera tephrodes John C. Roos 1951-10-19 5330 Riverside San Jacinto River Comment
  CLARK-A1528-2659  Camissonia ignota John C. Roos 1937-3-24 2186 Riverside Pigeon Pass Comment
  CLARK-A1528-2685  Rhododendron occidentale John C. Roos 1941-8-2 79 Riverside San Jacinto Mountains Comment
  CLARK-A1528-2687  Bernardia incana John C. Roos 1946-9-14 3024 Riverside San Jacinto Mountains Comment
  CLARK-A1528-2697  Euphorbia eriantha John C. Roos 1946-10-26 3140 Riverside Chuckwalla Mountains Comment
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Jan 30 2015
  CLARK-A1528-2727  Astragalus aridus John C. Roos 1949-3-19 4116 Riverside Indio Comment
  CLARK-A1528-2743  Astragalus gambelianus John C. Roos 1952-5-19 5689 Riverside Moreno 487 Comment
  CLARK-A1528-2745  Astragalus insularis var. harwoodii John C. Roos 1949-4-10 4222 Riverside Chuckwalla Mountains Comment
  CLARK-A1528-2759  Astragalus sabulonum John C. Roos 1949-3-26 Riverside Mecca Comment
  CLARK-A1528-2785  Hoffmannseggia microphylla John C. Roos 1949-3-19 4108 Riverside Mecca Comment
  CLARK-A1528-2791  Allium fimbriatum John C. Roos 1941-5-10 129 Riverside Santa Rosa Mountains Comment
  CLARK-A1528-2805  Lotus rigidus John C. Roos 1966-2-12 Riverside Chuckwalla Mountains Comment
  CLARK-A1528-2808  Lotus strigosus John C. Roos 1954-5-15 6120 Riverside Reche Canyon 731 Comment
  CLARK-A1528-2861  Melilotus albus John C. Roos 1965-7-3 Riverside Riverside Comment
  CLARK-A1528-2863  Olneya tesota John C. Roos 1965-12-4 Riverside Colorado Desert 365 Comment
  CLARK-A1528-2921  Quercus dunnii John C. Roos 1956-9-14 3016 Riverside San Jacinto Mountains 1371 Comment
  CLARK-A1528-2959  Erodium moschatum John C. Roos 1952-4-9 5480 Riverside Riverside 259 Comment
  CLARK-A1528-2983  Nama stenocarpa John C. Roos 1952-5-28 5728 Riverside Perris 426 Comment
  CLARK-A1528-2987  Nemophila menziesii John C. Roos 1947-3-21 3371 Riverside Reche Canyon Comment
  CLARK-A1528-2993  Phacelia brachyloba John C. Roos 1937-6-7 669 Riverside Sage Comment
  CLARK-A1528-2995  Phacelia cicutaria John C. Roos 1965-6-19 Riverside Santa Ana Mountains Comment
  CLARK-A1528-3010  Phacelia minor John C. Roos 1947-3-21 3374 Riverside Reche Canyon Comment
  CLARK-A1528-3029  Krameria grayi John C. Roos 1948-4-24 3804 Riverside Whitewater Comment
  CLARK-A1528-3072  Prunus ilicifolia John C. Roos 1940-5-4 Riverside San Timoteo Canyon Comment
  CLARK-A1528-3099  Lamium amplexicaule John C. Roos 1938-3-12 1642 Riverside La Sierra Comment
  CLARK-A1528-3103  Mentha spicata John C. Roos 1952-8-6 5881 Riverside Fairmont Park 259 Comment
  CLARK-A1528-3105  Salvia apiana var. compacta John C. Roos 1948-5-8 3824 Riverside Whitewater Comment
  CLARK-A1528-3131  Scutellaria tuberosa John C. Roos 1950-4-15 4734 Riverside Reche Canyon 822 Comment
  CLARK-A1528-3165  Mentzelia involucrata John C. Roos 1948-4-24 3801 Riverside Whitewater 518 Comment
  CLARK-A1528-3226  Hibiscus denudatus John C. Roos 1939-4-6 4145 Riverside Orocopia Mountains Comment
  CLARK-A1528-3269  Boerhavia torreyana John C. Roos 1946-11-29 3178 Riverside Hayfield Comment
  CLARK-A1528-3270  Boerhavia torreyana John C. Roos 1965-9-26 Riverside Santa Rosa Mountains 701 Comment
  CLARK-A1528-3286  Forestiera neomexicana John C. Roos 1965-7-25 Riverside San Jacinto Mountains Comment
  CLARK-A1528-3342  Epilobium adenocaulon var. parishii John C. Roos 1952-4-23 5577 Riverside Box Springs Mountain 457 Comment
  CLARK-A1528-3415  Platystemon californicus John C. Roos 1966-3-24 Riverside Winchester Comment
  CLARK-A1528-3434  Plantago erecta John C. Roos 1937-3-5 1300 Riverside La Sierra Comment
  CLARK-A1528-3447  Navarretia atractyloides John C. Roos 1952-5-26 5724 Riverside Reche Canyon 457 Comment
  CLARK-A1528-3491  Eriastrum densifolium John C. Roos 1965-7-22 Riverside San Jacinto Mountains Comment
  CLARK-A1528-3541  Notholaena newberryi John C. Roos 1936-11-21 Riverside La Sierra Comment
  CLARK-A1528-3547  Pinus coulteri John C. Roos 1948-6-19 3884 Riverside San Jacinto Mountains 1981 Comment
  CLARK-A1528-3564  Pinus quadrifolia John C. Roos 1947-4-5 3436 Riverside San Jacinto Mountains 1462 Comment
  CLARK-A1528-3581  Notholaena parryi John C. Roos 1946-11-30 3168 Riverside Chuckwalla Mountains Comment
  CLARK-A1528-3585  Pinus coulteri John C. Roos 1942-6-20 1281 Riverside San Jacinto Mountains Comment
  CLARK-A1528-3591  Pityrogramma triangularis John C. Roos 1936-11-21 Riverside La Sierra Comment
  CLARK-A1528-3597  Chorizanthe brevicornu John C. Roos 1948-4-24 3794 Riverside Whitewater 548 Comment
  CLARK-A1528-3616  Eriogonum angulosum John C. Roos 1937-4-23 1824 Riverside Twentynine Palms Comment
  CLARK-A1528-3630  Pinus quadrifolia John C. Roos 1938-8-7 585 Riverside San Jacinto Mountains Comment
  CLARK-A1528-3686  Eriogonum parishii John C. Roos 1946-8-27 2921 Riverside Santa Rosa Mountains 2194 Comment
  CLARK-A1528-3722  Eriogonum wrightii John C. Roos 1965-9-26 Riverside Palm Springs Station Comment
  CLARK-A1528-3836  Dodecatheon clevelandii John C. Roos 1952-2-29 5370 Riverside Box Springs Mountains 457 Comment
  CLARK-A1528-3851  Clematis ligusticifolia John C. Roos 1965-10-7 Riverside Riverside Comment
  CLARK-A1528-3853  Clematis pauciflora John C. Roos 1943-8-8 2700 Riverside San Jacinto Mountains Comment
  CLARK-A1528-3866  Delphinium parryi John C. Roos 1952-5-7 5614 Riverside Box Springs Mountains Comment
  CLARK-A1528-3880  Thalictrum polycarpum John C. Roos 1952-4-16 5552 Riverside Reche Canyon 487 Comment
  CLARK-A1528-3912  Colubrina californica John C. Roos 1966-3-20 Riverside Chuckwalla Mountains Comment
  CLARK-A1528-40  Avena fatua John C. Roos 1951-9-25 Riverside Riverside 259 Comment
  CLARK-A1528-401  Atriplex semibaccata John C. Roos 1951-9-25 5278 Riverside Riverside 259 Comment
  CLARK-A1528-4031  Prunus fremontii John C. Roos, Lucille Roos 1953-3-21 5908 Riverside Palm Springs 274 Comment
  CLARK-A1528-4037  Prunus virginiana John C. Roos 1965-7-3 Riverside San Jacinto Mountains Comment
  CLARK-A1528-404  Beta vulgaris John C. Roos 1951-10-24 5334 Riverside Riverside 228 Comment
  CLARK-A1528-4044  Rubus parviflorus John C. Roos 1965-7-3 Riverside San Jacinto Mountains Comment
  CLARK-A1528-4056  Salix laevigata John C. Roos 1947-11-1 3758 Riverside Eagle Mountains Comment
  CLARK-A1528-4075  Selaginella bigelovii John C. Roos 1952-4-9 5506 Riverside Riverside 335 Comment
  CLARK-A1528-4129  Ribes indecorum John C. Roos 1947-3-15 3341 Riverside San Jacinto Mountains Comment
  CLARK-A1528-4225  Mohavea confertiflora John C. Roos 1937-4-28 1287 Riverside Desert Center Comment
  CLARK-A1528-4227  Mohavea confertiflora John C. Roos 1947-2-14 3252 Riverside Eagle Mountains Comment
  CLARK-A1528-4234  Mimulus brevipes John C. Roos 1937-4-17 Riverside Aguanga Comment
  CLARK-A1528-4245  Mimulus floribundus John C. Roos 1952-4-29 5595 Riverside Box Springs Mountain 457 Comment
  CLARK-A1528-4248  Mimulus fremontii John C. Roos 1948-6-19 3883 Riverside San Jacinto Mountains Comment
  CLARK-A1528-4264  Mimulus pilosus John C. Roos 1936-9-15 2511 Riverside San Jacinto Mountains Comment
  CLARK-A1528-4287  Pedicularis densiflora John C. Roos 1966-4-23 Riverside Santa Ana Mountains Comment
  CLARK-A1528-4315  Penstemon pseudospectabilis John C. Roos 1949-4-10 4227 Riverside Chuckwalla Mountains Comment
  CLARK-A1528-4327  Veronica americana John C. Roos, Lucille Roos 1951-10-24 5338 Riverside Pedley 228 Comment
  CLARK-A1528-4341  Datura discolor John C. Roos 1965-11-6 Riverside Colorado Desert Comment
  CLARK-A1528-4345  Lycium andersonii John C. Roos 1966-2-12 Riverside Chuckwalla Valley Comment
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May 21 2016
  CLARK-A1528-4347  Lycium andersonii John C. Roos 1938-4-27 19 Riverside Riverside Comment
  CLARK-A1528-4348  Lycium brevipes John C. Roos 1949-3-19 4105 Riverside Dos Palmas Spring Comment
  CLARK-A1528-4374  Solanum wallacei John C. Roos 1938-3-28 727 Riverside La Sierra Comment
  CLARK-A1528-4391  Parietaria floridana John C. Roos 1937-2-21 1310 Riverside La Sierra Comment
  CLARK-A1528-4430  Kallstroemia californica John C. Roos 1963-10-24 Riverside Hayfield Comment
  CLARK-A1528-4469  Aristida fendleriana John C. Roos 1938-8-7 583 Riverside San Jacinto Mountains Comment
  CLARK-A1528-4479  Aristida purpurea John C. Roos 1965-9-26 Riverside Palm Springs 0 Comment
  CLARK-A1528-4516  Bouteloua curtipendula John C. Roos 1958-9-28 Riverside San Jacinto Mountains Comment
  CLARK-A1528-4546  Bromus mollis John C. Roos, Lucille Roos 1950-4-15 4740 Riverside Pigeon Pass 457 Comment
  CLARK-A1528-4554  Bromus rubens John C. Roos 1952-4-2 5465 Riverside Box Springs 426 Comment
  CLARK-A1528-4569  Cenchrus pauciflorus John C. Roos, Lucille Roos 1952-7-15 5811 Riverside Hemet 487 Comment
  CLARK-A1528-4613  Eragrostis mexicana John C. Roos 1965-7-7 Riverside San Jacinto Comment
  CLARK-A1528-4628  Eragrostis cilianensis John C. Roos 1965-7-7 Riverside San Jacinto Comment
  CLARK-A1528-4643  Festuca arundinacea John C. Roos 1950-4-15 4743 Riverside Riverside 259 Comment
  CLARK-A1528-4693  Imperata brevifolia John C. Roos 1949-9-17 4655 Riverside Whitewater 396 Comment
  CLARK-A1528-4717  Lolium perenne subsp. multiflorum John C. Roos 1953-4-21 5915 Riverside March Air Force Base 457 Comment
  CLARK-A1528-4723  Melica frutescens John C. Roos 1942-5-1 1157 Riverside Dry Morongo Canyon 548 Comment
  CLARK-A1528-4727  Melica imperfecta John C. Roos 1937-5-2 1419 Riverside La Sierra Comment
  CLARK-A1528-4788  Panicum urvilleanum John C. Roos 1737-4-28 1283 Riverside Whitewater Comment
  CLARK-A1528-4793  Phalaris aquatica John C. Roos 1962-6-30 Riverside Santa Ana Mountains Comment
  CLARK-A1528-4797  Phalaris lemmonii John C. Roos 1966-3-24 Riverside Winchester Comment
  CLARK-A1528-4798  Phalaris paradoxa John C. Roos 1943-4-3 2616 Riverside San Timoteo Canyon 457 Comment
  CLARK-A1528-4835  Poa scabrella John C. Roos 1950-3-25 4177 Riverside Reche Canyon 457 Comment
  CLARK-A1528-4837  Poa scabrella John C. Roos 1950-2-25 4170 Riverside Reche Canyon 457 Comment
  CLARK-A1528-4856  Erodium moschatum John C. Roos 1937-5-2 1402 Riverside Riverside Comment
  CLARK-A1528-4877  Erigeron foliosus John C. Roos 1938-5-26 474 Riverside La Sierra Comment
  CLARK-A1528-4878  Wislizenia refracta John C. Roos 1937-4-23 655 Riverside Twentynine Palms Comment
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Mar 3 2014
  CLARK-A1528-4943  Hulsea vestita subsp. callicarpha John C. Roos 1942-6-20 1275 Riverside San Jacinto Mountains Comment
  CLARK-A1528-4948  Hulsea heterochroma John C. Roos 1942-6-20 1274 Riverside San Jacinto Mountains Comment
  CLARK-A1528-4964  Salvia mohavensis John C. Roos 1947-2-15 3234 Riverside Eagle Mountains Comment
  CLARK-A1528-4988  Lupinus sparsiflorus John C. Roos 1948-4-24 3789 Riverside Cabazon Comment
  CLARK-A1528-4991  Encelia virginensis subsp. actonii John C. Roos 1948-4-24 3798 Riverside Whitewater Comment
  CLARK-A1528-4993  Artemisia californica John C. Roos 1948-4-24 3806 Riverside Whitewater Comment
  CLARK-A1528-5000  Chaenactis artemisiifolia John C. Roos 1937-5-10 2070 Riverside Comment
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Jun 24 2014
  CLARK-A1528-5009  Lotus purshianus John C. Roos 1937-6-7 2400 Riverside San Jacinto Comment
  CLARK-A1528-5012  Chenopodium leptophyllum John C. Roos 1946-8-27 2913 Riverside Santa Rosa Mountains 2438 Comment
  CLARK-A1528-5016  Ambrosia ilicifolia John C. Roos 1945-10-25 3147 Riverside Chuckwalla Mountains Comment
  CLARK-A1528-5060  Phacelia vallis-mortae John C. Roos 1937-4-18 679 Riverside Mount San Jacinto 487 Comment
  CLARK-A1528-510  Melilotus albus John C. Roos 1951-9-25 5256 Riverside Riverside 259 Comment
  CLARK-A1528-5128  Lepidospartum squamatum var. palmeri John C. Roos 1965-10-12 Riverside Whitewater Comment
  CLARK-A1528-5187  Melica imperfecta John C. Roos 1950-4-29 4772 Riverside Box Springs Mountains 609 Comment
  CLARK-A1528-5188  Melica imperfecta John C. Roos 1950-4-29 4771 Riverside Box Springs Mountains 609 Comment
  CLARK-A1528-5198  Antirrhinum nuttallianum John C. Roos 1966-4-29 Riverside Comment
  CLARK-A1528-5232  Streptanthus heterophyllus John C. Roos 1952-3-19 5404 Riverside Box Springs Mountains 487 Comment
  CLARK-A1528-5249  Centaurium venustum John C. Roos 1948-4-24 3797 Riverside Whitewater Comment
  CLARK-A1528-5258  Sporobolus cryptandrus John C. Roos 1965-8-15 Riverside San Jacinto Valley Comment
  CLARK-A1528-5349  Mentha citrata John C. Roos 1951-9-25 5289 Riverside Riverside Comment
  CLARK-A1528-5372  Mentzelia micrantha John C. Roos, Lucille Roos 1952-5-19 5695 Riverside Moreno 518 Comment
  CLARK-A1528-5401  Atriplex coronata var. notatior John C. Roos 1952-5-14 5668 Riverside San Jacinto River 426 Comment
  CLARK-A1528-5433  Erodium obtusiplicatum John C. Roos 1966-3-22 Riverside Edgemont Comment
  CLARK-A1528-5452  Bidens frondosa John C. Roos 1951-9-25 5265 Riverside Riverside 259 Comment
  CLARK-A1528-5484  Toxicodendron diversilobum John C. Roos, Lucille Roos 1952-4-28 5589 Riverside Riverside Comment
  CLARK-A1528-5505  Brickellia desertorum John C. Roos 1951-10-19 5328 Riverside San Jacinto Mountains 457 Comment
  CLARK-A1528-5507  Brickellia desertorum John C. Roos 1949-9-21 4665 Riverside Reche Canyon 457 Comment
  CLARK-A1528-5533  Schismus barbatus John C. Roos 1951-3-24 5033 Riverside Riverside 396 Comment
  CLARK-A1528-5544  Stenotaphrum secundatum John C. Roos 1951-9-22 5234 Riverside Riverside Comment
  CLARK-A1528-5552  Stipa speciosa John C. Roos 1937-7-14 Riverside Reche Canyon Comment
  CLARK-A1528-5651  Chenopodium pumilio John C. Roos 1947-8-15 Riverside Santa Ana River Comment
  CLARK-A1528-5666  Brandegea bigelovii John C. Roos 1960-4-8 Riverside 380 Comment
  CLARK-A1528-5672  Psoralea physodes John C. Roos 1960-5-30 Riverside Santa Ana Mountains 1219 Comment
  CLARK-A1528-5690  Lepechinia cardiophylla John C. Roos 1960-5-30 Riverside Santa Ana Mountains Comment
  CLARK-A1528-5699  Boerhavia coccinea John C. Roos 1945-5-15 3858 Riverside Eagle Mountains Comment
  CLARK-A1528-5729  Ribes quercetorum John C. Roos 1952-2-18 5354 Riverside Reche Canyon 761 Comment
  CLARK-A1528-5749  Fagonia californica var. glutinosa John C. Roos 1947-2-1 3220 Riverside Painted Canyon Comment
  CLARK-A1528-5812  Argemone corymbosa John C. Roos 1949-4-11 4245 Riverside Hayfield Comment
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Jan 28 2019
  CLARK-A1528-6888  Brodiaea filifolia John C. Roos 1952-5-14 5667 Riverside San Jacinto River 426 Comment
  CLARK-A1528-692  Paeonia californica John C. Roos 1937-4-17 Riverside Aguanga Comment
  CLARK-A1528-7776  Daucus pusillus John C. Roos 1937-5-2 1399 Riverside La Sierra Comment
  CLARK-A1528-7789  Baccharis salicifolia John C. Roos 1947-3-15 3331 Riverside Dos Palmas Spring Comment
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Oct 23 2015
  CLARK-A1528-7882  Galium angustifolium subsp. angustifolium John C. Roos 1948-5-8 3819 Riverside Whitewater Canyon 548 Comment
  CLARK-A1528-997  Eriogonum fasciculatum subsp. polifolium John C. Roos 1948-5-15 3844 Riverside Eagle Mountains 853 Comment
  LA102170  Elymus condensatus John C. Roos; 1963-8-10 sn Riverside Blythe Comment
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Mar 10 2014
  LA102171  Aristida purpurea John C. Roos; 1965-9-26 sn Riverside Palm Springs, in a parkway Comment
  LA102175  Phalaris lemmonii John C. Roos; 1966-3-24 sn Riverside Winchester (near Hemet) Comment
  LA102309  Ceanothus tomentosus John C. Roos; 1950-5-6 4785 Riverside Santa Ana Mountains, at the head of Hagador Canyon, S of Corona Comment
  LA105321  Muhlenbergia microsperma John C. Roos; 1946-10-26 3144 Riverside Chuckwalla Mountains, near tanks Comment
  OBI33206  Camissoniopsis bistorta J. C. Roos 1947-3-15 3345 Riverside Valle Vista, San Jacinto Valley 549 Comment
  POM251782  Muhlenbergia minutissima J. C. Roos 1937-8-18 2 Riverside Hidden Lake, San Jacinto Mountains. Comment
  POM251788  Samolus parviflorus J. C. Roos 1937-6-19 23 Riverside Murrietta Hot Springs. Comment
  POM262901  Quercus palmeri J. C. Roos 1941-5-9 120 Riverside Near summit of Pines to Palms Road Comment
  POM262902  Mirabilis multiflora var. pubescens J. C. Roos 1941-5-10 121 Riverside Pinyon Flats Camp, Santa Rosa Mountains. 1220 Comment
  POM262947  Encelia actoni J. C. Roos 1941-5-10 s.n. Riverside Pinyon Flats Camp, Santa Rosa Mountains. 1220 Comment
  POM262976  Antirrhinum nuttallianum subsp. nuttallianum J. C. Roos 1941-4-19 176 Riverside Reche Canyon - 'Plateau' [Label indicates San Bernardino Co.] Comment
  POM263110  Nassella cernua J. C. Roos 1937-5-10 430 Riverside Perris Comment
  POM263162  Ambrosia acanthicarpa J. C. Roos 1937-8-19 359 Riverside Thomas Valley, San Jacinto Mts. Comment
  POM263559  Eriogonum wrightii var. membranaceum J. C. Roos 1937-8-17 360 Riverside Near Idyllwild, San Jacinto Mountains. Comment
  POM264354  Aristida purpurea var. nealleyi J. C. Roos 1938-8-7 582 Riverside East of Hemet, in mountains along San Jacinto River. Comment
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Apr 3 2011
  POM265817  Epilobium oregonense J. C. Roos 1937-8-18 2528 Riverside Round Valley, San Jacinto Mountains. 2744 Comment
  POM266370  Artemisia dracunculus J. C. Roos 1937-8-17 1615 Riverside San Jacinto. Comment
  POM301478  Mimulus floribundus J. C. Roos 1937-5-10 2330 Riverside Anual in moist spot in hills west of Perris. Comment
  POM301609  Lobelia cardinalis subsp. graminea J. C. Roos 1937-8-23 2402 Riverside Snow Creek, north base of San Jacinto Mountains 762 Comment
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May 21 2011
  POM431208  Imperata brevifolia J. C. Roos 1965-6-23 s.n. Riverside Palm Springs Comment
  RSA266381  Lactuca serriola J. C. Roos 1937-8-17 2546 Riverside San Jacinto. Comment
  RSA40565  Cymopterus panamintensis var. acutifolius J. C. Roos 1947-2-15 3243 Riverside Lost Palms Cyn. S face of Eagle Mtns., west of Hayfeilds. Comment
  RSA40605  Bahia dissecta J. C. Roos 1946-8-27 2923 Riverside Santa Rosa Mountains. 2287 Comment
  RSA431199  Dicoria canescens J. C. Roos 1957-11-30 6659 Riverside 6 mi NW of Thousand Palms. 152 Comment
  RSA443393  Physalis acutifolia J. C. Roos 1965-9-5 s.n. Riverside Blythe. Comment
  RSA443546  Camissonia brevipes subsp. brevipes J. C. Roos 1966-3-20 s.n. Riverside 2 miles SE of Desert Center. Comment
  RSA444457  Pulicaria hispanica J. C. Roos 1965-6-23 s.n. Riverside Palm Springs. Comment
  RSA444472  Rupertia physodes J. C. Roos 1960-5-30 s.n. Riverside Santa Ana Mountains: Ridge N of Bedford Peak with Calochortus albus, semi shade 1220 Comment
  RSA444474  Astragalus allochrous var. playanus J. C. Roos 1949-4-10 4228 Riverside Chuckawalla Mountains: Rocky hillside about 3.5 mi. SE of Desert Center. Comment
  RSA444479  Calochortus albus J. C. Roos 1960-5-30 s.n. Riverside Ridge between heads of Bedford Canyon and East Fork Ladd Canyon 1220 Comment
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May 20 2011
  RSA444676  Brickellia desertorum J. C. Roos 1965-9-12 s.n. Riverside Tin Mine Canyon, 3 mi. SW of Corona. 549 Comment
  RSA444788  Garrya flavescens var. pallida J. C. Roos 1966-4-23 s.n. Riverside Skyline Drive, Santa Ana Mtns., above Corona. Comment
  RSA449945  Hibiscus denudatus J. C. Roos 1958-2-22 s.n. Riverside 2 mi SE of Desert Center Comment
  RSA449968  Linanthus filiformis J. C. Roos 1958-3-15 s.n. Riverside 3 miles SE of Desert Center, Chuckwalla Mtns. Comment
  RSA449969  Leptosiphon pygmaeus subsp. pygmaeus J. C. Roos 1950-4-22 4757 Riverside In the hills NE of the summit of Reche Canyon. 823 Comment
  RSA450059  Leptochloa panicea subsp. mucronata J. C. Roos 1965-9-5 s.n. Riverside Blythe. Comment
  RSA450107  Astragalus nuttallianus var. imperfectus J. C. Roos 1958-3-15 s.n Riverside 3 miles SE of Desert Center, in the Chuckwalla Mtns. Comment
  RSA450122  Psorothamnus schottii J. C. Roos 1966-5-2 s.n. Riverside Mouth of Pushwalla Canyon, Indio Mtns. Comment
  RSA450138  Mirabilis laevis var. crassifolia J. C. Roos 1966-9-20 s.n. Riverside San Jacinto. Comment
  RSA450156  Castilleja affinis J. C. Roos 1966-4-5 s.n. Riverside Winchester Comment
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Mar 20 2011
  RSA450174  Amorpha fruticosa J. C. Roos 1966-5-5 s.n Riverside Gilman Hot springs, San Jacinto Valley. Comment
  RSA450256  Rubus parviflorus J. C. Roos 1965-7-3 s.n. Riverside Dark Canyon, San jacinto Mtns. Comment
  RSA450314  Microseris lindleyi J. C. Roos 1950-4-5 4721 Riverside N side of Pigeon Pass 427 Comment
  RSA450431  Hemizonia fasciculata J. C. Roos 1965-6-19 s.n. Riverside Skyline Drive, S of Corona Comment
  RSA450761  Baccharis emoryi J. C. Roos 1965-10-7 s.n. Riverside Fairmont Park Comment
  RSA450762  Machaeranthera asteroides var. asteroides J. C. Roos 1965-10-5 s.n. Riverside Hemet. Comment
  RSA45205  Hordeum marinum subsp. gussoneanum J. C. Roos, Lucille Roos 1949-5-21 4318 Riverside Temecula. 304 Comment
  RSA45222  Monoptilon bellioides J. C. Roos, Lucille Roos 1949-3-19 4100 Riverside Southeast foot Orocopia Mountains, about 5 miles northeast of Dos Palmos Spring Comment
  RSA45224  Salvia greatae L. Roos 1949-4-6 4154 Riverside Mouth of rocky canyon, south foot Chocolate Mtns., north of Pope. 91 Comment
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May 26 2015
  RSA45227  Salvia greatae J. C. Roos 1949-3-19 4101 Riverside Salt Creek Wash, about 7 miles northeast of Dos Palmos Spring. Comment
  RSA45506  Gilia stellata J. C. Roos, L. Roos 1949-4-10 4226 Riverside 3.5 mi. SE of Desert Center, Chuckwalla Mountains. 610 Comment
  RSA457405  Aristida purpurea var. purpurea J. C. Roos 1965-9-26 s.n. Riverside Palm Springs. 122 Comment
  RSA48847  Brickellia desertorum J. C. Roos 1949-9-21 4665 Riverside E slope of rocky ridge in pass between Reche Canyon & Pigeon Pass 457 Comment
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Dec 5 2014
  RSA48878  Baccharis salicifolia J. C. Roos 1949-9-21 4664 Riverside Reche Canyon, 2.7 miles south of Hollow Hill Dairy 457 Comment
  RSA648674  Aristida adscensionis J. C. Roos 1946-10-26 3143 Riverside in the Chuckwalla Mtns., Colorado Desert. Comment
  RSA658704  Eremogone ferrisiae J. C. Roos 1965-7-22 s.n. Riverside Thomas Valley, San Jacinto Mtns. Comment
  RSA658860  Phacelia distans J. C. Roos 1966-3-20 s.n. Riverside 2 miles SE of Desert Center. Comment
  RSA659485  Plantago ovata var. fastigiata J. C. Roos 1966-3-20 s.n. Riverside 2 miles SE of Desert Center. Comment
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Dec 17 2011
  RSA659608  Salix laevigata J. C. Roos 1952-2-18 5351 Riverside At west end of Fairmount Park, Riverside. 259 Comment
  RSA659609  Salix exigua J. C. Roos 1947-2-15 3244 Riverside Lost Palms Canyon. Comment
  RSA659618  Aristida purpurea J. C. Roos 1965-8-15 s.n. Riverside Gilman Hot Springs, San Jacinto Valley. Comment
  RSA659696  Silene laciniata J. C. Roos 1965-6-19 s.n. Riverside Skyline Drive, S of Corona Comment
  RSA659764  Tridens muticus J. C. Roos 1966-11-12 s.n. Riverside Spring Tank, Chuckwalla Mtns. Comment
  RSA659768  Astragalus didymocarpus J. C. Roos 1952-4-30 5606 Riverside Hills between Camp Haan and Riverside 518 Comment
  RSA659769  Plagiobothrys canescens var. canescens J. C. Roos 1952-4-30 5605 Riverside Hills between Camp Haan and Riverside 518 Comment
  RSA659788  Trifolium variegatum J. C. Roos 1952-5-26 5714 Riverside Hass' Ranch. Reche Canyon. 457 Comment
  RSA662538  Trifolium amplectens J. C. Roos 1966-3-24 s.n. Riverside Flats west of Hemet. Comment
  RSA69836  Leersia oryzoides J. C. Roos, L. Roos 1951-10-24 5345 Riverside Outlet of Fairmount Park Lake 259 Comment
  RSA69870  Ludwigia peploides subsp. peploides J. C. Roos 1951-9-25 5250 Riverside Fairmount Park 259 Comment
  RSA74576  Centaurea repens J. C. Roos 1947-7-5 2908 Riverside Junction of San Timoteo and Live Oak Creeks. 457 Comment
  RSA77259  Muhlenbergia minutissima J. C. Roos, L. Roos 1952-10-18 5903 Riverside Hidden Valley Campground 1220 Comment
  RSA78209  Prunus fremontii J. C. Roos, L. Roos 1953-3-21 5908 Riverside Mouth of Andreas Canyon, south of Palm Springs. 274 Comment
  RSA78225  Nolina parryi J. C. Roos, L. Roos 1952-10-18 5904 Riverside Hidden Valley Campground 1220 Comment
  RSA78374  Baccharis brachyphylla J. C. Roos 1950-12-2 5028 Riverside Monson Canyon, Eagle Mountains. 1067 Comment
  RSA85153  Myosurus minimus subsp. apus J. C. Roos 1952-4-9 5515 Riverside Edgemont near Box Springs. 488 Comment
  RSA85453  Elatine brachysperma J. C. Roos 1952-4-16 5539 Riverside Edgemont, near Box Springs. Comment
  RSA85503  Microseris douglasii subsp. douglasii J. C. Roos 1952-4-23 5573 Riverside 1 mile southeast of Perris 427 Comment
  RSA85521  Cirsium occidentale var. californicum J. C. Roos 1952-4-27 5586 Riverside San Timoteo Canyon south of Redlands. 427 Comment
  SD126648  Cuscuta californica var. papillosa J. C. Roos 1946-12-7 3184 Riverside Pushawalla Wash Comment
  SD132541  Equisetum telmateia subsp. braunii John C. Roos 1952-6-25 5794 Riverside Riverside, Fairmount Park, west end 259 Comment
  SEINET3089934 Image available Chamaesyce polycarpa J. C. Roos 1947-11-1 3755 Riverside Eagle Mountains, edge of Lost Palms Wash. Comment
  UC1010264  Quercus wislizeni var. frutescens John C. Roos 1952-4-13 5518 Riverside Box Springs Mts. 518 Comment
  UC1026579  Marsilea vestita subsp. vestita John C. Roos 1952-5-21 5704 Riverside 1 1/2 mi se Perris (San Jacinto river bottomland) 426 Comment
  UC1042975  Malacothrix clevelandii John and Lucille Roos 1954-5-15 6119 Riverside summit Reche Canyon; summit Reche Canyon 731 Comment
  UC1494264  Gilia filiformis J. C. Roos 1958-3-15 Riverside 3 mi se Desert Center (Chuckwalla Mtns.); , se of Desert Center Comment
  UCD65733  Eriochloa contracta J. C. Roos 1963-8-10 Riverside Blythe. Comment
  UCR18625  Perityle emoryi John C. Roos 1966-3-20 s.n. Riverside Sonoran (Colorado) Desert, Chuckwalla Mtns, rocky canyon 2.5 miles SE of Desert Center 610 Comment
  UCR18656  Brodiaea filifolia John C. Roos 1952-5-14 5667 Riverside Perris-Aguanga Basin region, 1 mi east of Perris along the San Jacinto River 427 Comment
  UCR18662  Psilocarphus brevissimus var. brevissimus John C. Roos 1952-4-30 5601 Riverside Edgemont, near Box Springs 488 Comment
  UCR18663  Solidago californica John C. Roos 1952-8-27 5892 Riverside Reche Canyon, Haas Ranch 457 Comment
  UCR18669  Stylocline filaginea John C. Roos, L. Roos 1954-5-11 6118 Riverside Reche Canyon (Same locality as number 4773) 610 Comment
  UCR18789  Atriplex coronata var. notatior John C. Roos 1952-5-14 5668 Riverside Perris-Aguanga Basin, 1 mi SE of Perris. San Jacinto River bottomlands. Comment
  UCR18826  Croton setiger John C. Roos 1965-7-27 s.n. Riverside Elsinore Comment
  UCR18828  Ditaxis lanceolata John C. Roos 1965-6-23 s.n. Riverside Sonoran (Colorado) Desert, Cactus City, just east of the Mecca Hills on Interstate Hwy 10 [and 25 mi. east of Indio]. 500 Comment
  UCR18846  Petunia parviflora John C. Roos 1951-10-19 5327 Riverside San Jacinto Valley, Near S end of Old Jackrabbit Trail 457 Comment
  UCR18855  Garrya flavescens John C. Roos 1950-3-6 4788 Riverside Santa Ana Mtns., head of Hagador Canyon. 1037 Comment
  UCR18902  Atriplex lentiformis John C. Roos 1965-9-5 s.n. Riverside Sonoran (Colorado) Desert, Blythe 76 Comment
  UCR18915  Ranunculus hebecarpus John C. Roos 1950-5-6 4790 Riverside Santa Ana Mtns., Hagador Canyon 610 Comment
  UCR18956  Githopsis diffusa subsp. diffusa John C. Roos 1952-5-24 5710 Riverside Hills north of Moreno Comment
  UCR18962  Loeflingia squarrosa John C. Roos 1952-5-14 5664 Riverside Perris-Aguanga Basin, 2 mi NW of Perris Comment
  UCR18964  Arenaria macradenia var. macradenia John C. Roos 1965-7-22 s.n. Riverside San Jacinto Mtns, Thomas Valley Comment
  UCR18990  Quercus wislizeni John C. Roos 1965-9-26 s.n. Riverside Santa Rosa Mtns, Near summit of Palms to Pines Hwy 1524 Comment
  UCR19077  Mimulus bigelovii var. bigelovii John C. Roos 1966-3-20 s.n. Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, 2 miles southeast of Desert Center 366 Comment
  UCR19082  Monardella linoides subsp. linoides John C. Roos 1946-9-14 3009 Riverside Santa Rosa Mountains, Taylor, desert slope on Palms to Pines Highway 1098 Comment
  UCR19083  Berberis dictyota John C. Roos 1952-2-29 5379 Riverside SW of Reche Canyon 610 Comment
  UCR19096  Athysanus pusillus John C. Roos 1967-2-25 s.n. Riverside Box Springs Mtns, Sunymead, Pigeon Pass Comment
  UCR19112  Allionia incarnata John C. Roos 1965-9-5 s.n. Riverside Sonoran (Colorado) Desert, Desert Center Comment
  UCR19114  Lythrum californicum John C. Roos 1946-9-14 3010 Riverside Santa Rosa Mtns, Dos Palmas Spring, east of Asbestos Mountain 1070 Comment
  UCR19122  Petalonyx linearis John C. Roos, Lucille Roos 1949-4-6 4150 Riverside Sonoran (Colorado) Desert, Chocolate Mountains, canyon bottom near Pope, Hot Mineral Springs 61 Comment
  UCR19130  Hyptis emoryi John C. Roos 1965-12-4 s.n. Riverside Sonoran (Colorado) Desert, Chuckwalla Mtns, 2 mi. SE of Desert Center 366 Comment
  UCR19142  Solanum physalifolium var. nitidibaccatum John C. Roos, L. Roos 1953-6-29 5925 Riverside San Bernardino Mtns. Foothills, Cherry Valley north of Beaumont 976 Comment
  UCR19161  Gilia angelensis John C. Roos 1966-3-22 s.n. Riverside Moreno Valley, Edgemont. Comment
  UCR19192  Eclipta prostrata John C. Roos 1965-7-5 s.n. Riverside Sonoran (Colorado) Desert, Thermal Airport Comment
  UCR19204  Calandrinia ciliata John C. Roos 1966-3-24 s.n. Riverside Winchester 457 Comment
  UCR19207  Pinus monophylla John C. Roos 1947-12-14 3764 Riverside Sonoran (Colorado) Desert, Eagle Mtns., Lost Palms Canyon Comment
  UCR19233  Helianthus petiolaris John C. Roos 1965-7-29 s.n. Riverside Hemet Comment
  UCR19256  Brickellia incana John C. Roos 1947-11-1 3751 Riverside Sonoran (Colorado) Desert, Eagle Mountains, mouth of Lost Palms Canyon, & up the canyon some distance Comment
  UCR19350  Melica frutescens John C. Roos 1965-6-13 s.n. Riverside San Jacinto Mtns, W base of the mountains, east of Hemet Comment
  UCR19373  Muhlenbergia rigens John C. Roos 1965-6-30 s.n. Riverside Santa Ana Mtns., Ortega Hwy Comment
  UCR19374  Muhlenbergia microsperma John C. Roos 1937-5-1 1406 Riverside La Sierra Campus of Loma Linda Univ. Comment
  UCR19494  Baccharis salicina John C. Roos 1965-10-6 s.n. Riverside Santa Ana River at Pedley 201 Comment
  UCR19682  Aristida purpurea var. parishii John C. Roos 1940-2-17 891 Riverside Peninsular Range, Reche Canyon 'Plateau 457 Comment
  UCR19684  Aristida adscensionis John C. Roos 1965-9-5 s.n. Riverside Sonoran (Colorado) Desert, 20 mi west of Blythe Comment
  UCR19689  Avena barbata John C. Roos 1966-3-22 s.n. Riverside San Jacinto Valley, Gilman [Hot] Springs 610 Comment
  UCR19707  Caucalis microcarpa John C. Roos 1952-4-9 5502 Riverside Riverside, W face of Mt. Rubidoux 400 Comment
  UCR19711  Malacothrix clevelandii John C. Roos, L. Roos 1954-5-15 6119 Riverside summit of Reche Canyon 732 Comment
  UCR20373  Schoenoplectus americanus John C. Roos, L. Roos 1952-6-10 5762 Riverside San Bernardino Valley Region, Fairmont Park in Riverside, edge of lake 259 Comment
  UCR20374  Schoenoplectus acutus var. occidentalis John C. Roos, L. Roos 1952-6-10 5761 Riverside San Bernardino Valley Region, Fairmont Park in Riverside, edge of lake 259 Comment
  UCR20382  Sphaeralcea emoryi subsp. nevadensis John C. Roos 1965-9-5 s.n. Riverside Sonoran (Colorado) Desert, 18 mi. west of Blythe 122 Comment
  UCR20400  Eriogonum gracile var. gracile John C. Roos 1952-8-27 5888 Riverside Peninsular Range, Riverside; Pigeon Pass, Box Springs Mtns. 457 Comment
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Apr 16 2011
  UCR20435  Festuca octoflora John C. Roos 1952-4-9 5483 Riverside Hill by Fairmont Park, Riverside 259 Comment
  UCR20584  Bromus arizonicus John C. Roos 1952-4-9 5473 Riverside Riverside, E base of Mt. Rubidoux 274 Comment
  UCR23276  Baccharis brachyphylla John C. Roos 1950-10-16 5008 Riverside Transverse Range/Little San Bernardino Mtns., Dry Morongo Canyon about 1 mi south of Riverside-San Bernardino County line 612 Comment
  UCR23306  Encelia californica John C. Roos 1952-4-16 5557 Riverside Box Springs Mountains, Pigeon Pass 457 Comment
  UCR23380  Chilopsis linearis John C. Roos, L. Roos 1952-6-21 5783 Riverside San Timoteo Canyon 442 Comment
  UCR23410  Rhus integrifolia John C. Roos 1944-1-29 2766 Riverside Box Springs Mtns. east of Riverside near Pigeon Pass 750 Comment
  UCR23421  Amaranthus hybridus John C. Roos 1965-10-13 s.n. Riverside Corona Comment
  UCR23491  Galium parishii John C. Roos 1936-9-15 2510 Riverside San Jacinto Mtns., Above Idyllwild Comment
  UCR23575  Monardella hypoleuca subsp. intermedia John C. Roos 1962-6-30 s.n. Riverside Santa Ana Mtns, Skyline Drive at the head of Hagador Canyon 1159 Comment
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Aug 17 2012
  UCR23580  Tiquilia palmeri John C. Roos 1949-3-19 4111 Riverside Sonoran (Colorado) Desert, Mouth of Shaver's Wash near Mecca Comment
  UCR23760  Fagonia laevis John C. Roos 1966-3-26 s.n. Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, 2 mi SE of Desert Center 366 Comment
  UCR23778  Hymenoclea salsola John C. Roos 1947-3-1 3300 Riverside Salton Sea, 2 mi. NW of Travertine Rocks, NW side of Salton Sea. 1006 Comment
  UCR23886  Festuca arundinacea John C. Roos 1950-4-15 4743 Riverside W end of Fairmont Park Lake, Riverside 244 Comment
  UCR23953  Amorpha californica John C. Roos 1952-6-13 5767 Riverside Pass between Reche Canyon and the north base of Pigeon Pass. 488 Comment
  UCR23968  Bromus trinii John C. Roos 1942-5-2 1120 Riverside Little San Bernardino Mountains, Live Oak Tank 1280 Comment
  UCR23971  Aristida purpurea var. nealleyi John C. Roos 1937-8-20 1225 Riverside Santa Rosa Mtns., 1 mi east of Pinon Flats Public Camp 1220 Comment
  UCR24008  Leptochloa filiformis John C. Roos 1965-9-5 s.n. Riverside Sonoran (Colorado) Desert, Blythe 76 Comment
  UCR24054  Festuca microstachys John C. Roos 1950-4-15 4737 Riverside The summit of Reche Canyon 793 Comment
  UCR24057  Melica frutescens John C. Roos, Lucille Roos 1949-4-23 4283 Riverside Sonoran (Colorado) Desert, Lost Palms Wash, Eagle Mountains 823 Comment
  UCR24104  Carex douglasii John C. Roos 1943-10-16 2739 Riverside Southern Mojave Desert, Falcon Flats, Little San Bernardino Mtns 1524 Comment
  UCR24121  Atriplex coronata var. notatior John C. Roos 1965-6-30 s.n. Riverside Perris-Aguanga Basin region, Perris Comment
  UCR24163  Senecio vulgaris John C. Roos 1967-2-7 s.n. Riverside San Jacinto Valley, City of Hemet 518 Comment
  UCR24195  Epipactis gigantea John C. Roos 1942-5-2 1129 Riverside Mojave Desert, Joshua Tree National Monument [now Park]. South entrance, Cottonwood Spring 915 Comment
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Apr 5 2011
  UCR24243  Linanthus pygmaeus John C. Roos 1950-4-22 4757 Riverside Hills NE of the summit of Reche Canyon 823 Comment
  UCR24260  Oxytheca trilobata John C. Roos 1937-8-17 2544 Riverside San Jacinto Mtns., Near Idyllwild Comment
  UCR24336  Gilia filiformis John C. Roos 1958-3-15 s.n. Riverside Sonoran (Colorado) Desert, 3 mi. SE of Desert Center, Chuckwalla Mtns. Comment
  UCR24338  Aristida purpurea var. nealleyi John C. Roos, Lucille Roos 1950-10-21 5012 Riverside Mojave Desert, Little San Bernardino Mountains, Wonderland of Rocks [Joshua Tree National Park] 1220 Comment
  UCR24409  Atrichoseris platyphylla John C. Roos 1966-3-26 s.n. Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, 2 mi SE of Desert Center 366 Comment
  UCR24411  Castela emoryi John C. Roos 1937-8-20 1223 Riverside Sonoran (Colorado) Desert, Hayfields about 5-10 miles west of Desert Center Comment
  UCR24439  Heuchera hirsutissima John C. Roos 1946-8-27 2784 Riverside Peninsular Range, Santa Rosa Mtns 2287 Comment
  UCR24463  Hesperocnide tenella John C. Roos 1952-4-13 5537 Riverside Riverside, north base of the Box Springs Mtns. 396 Comment
  UCR25246  Navarretia fossalis John C. Roos 1952-5-28 5729 Riverside Perris-Aguanga Basin region, San Jacinto River bottomland 1 mile southeast of Perris 427 Comment
  UCR25333  Atriplex muelleri John C. Roos 1965-10-17 s.n. Riverside Sonoran (Colorado) Desert, roadside 20 miles west of Blythe 120 Comment
  UCR25362  Linanthus pygmaeus John C. Roos 1952-5-7 5619 Riverside Box Springs Mountains north of Canyon Crest Heights. 488 Comment
  UCR25363  Pellaea mucronata John C. Roos 1952-5-7 5616 Riverside Box Springs Mountains north of Canyon Crest Heights 457 Comment
  UCR25364  Stylomecon heterophylla John C. Roos 1952-4-16 5553 Riverside SW side of Reche Canyon. 488 Comment
  UCR25367  Platystemon californicus John C. Roos 1952-4-13 5532 Riverside N side of the Box Springs Mountains 457 Comment
  UCR25369  Dryopteris arguta John C. Roos 1952-4-13 5519 Riverside Peninsular Range, Box Springs Mountains 520 Comment
  UCR25406  Galium stellatum subsp. eremicum John C. Roos, Lucille Roos 1949-4-6 4144 Riverside Sonoran (Colorado) Desert, Canyon in the Orocopia Mountains, 2.5 mi. NE of Dos Palmas Spring 152 Comment
  UCR25604  Castilleja exserta John C. Roos 1952-4-16 5558 Riverside Box Springs Mountains, Pigeon Pass 457 Comment
  UCR25621  Muhlenbergia asperifolia John C. Roos 1951-9-25 5257 Riverside City of Riverside, west end of Fairmount Park 259 Comment
  UCR25718  Camissonia strigulosa John C. Roos 1952-4-16 5554 Riverside Reche Canyon. 457 Comment
  UCR25779  Filago californica John C. Roos 1952-4-13 5528 Riverside Peninsular Range, Box Springs Mountains 520 Comment
  UCR25782  Tauschia arguta John C. Roos 1952-4-13 5521 Riverside Peninsular Range, Box Springs Mountains 520 Comment
  UCR25784  Cardaria draba John C. Roos 1949-4-2 4135 Riverside Fisherman's Retreat, San Timoteo Canyon Comment
  UCR25787  Thysanocarpus curvipes John C. Roos 1952-4-16 5544 Riverside Reche Canyon. 457 Comment
  UCR25796  Stellaria nitens John C. Roos 1952-4-13 5531 Riverside N slope, on north side of Box Springs Mtns 396 Comment
  UCR25798  Geranium carolinianum John C. Roos 1952-5-7 5620 Riverside Box Springs Mountains above Canyon Crest Heights 503 Comment
  UCR25855  Psorothamnus emoryi John C. Roos, Lucille Roos 1949-4-6 4139 Riverside Sonoran (Colorado) Desert, east of Mecca Comment
  UCR25915  Trifolium variegatum John C. Roos 1952-5-26 5714 Riverside Haas Ranch, Reche Canyon 457 Comment
  UCR25939  Salix laevigata John C. Roos 1947-11-1 3758 Riverside Sonoran (Colorado) Desert, Eagle Mtns, Lost Palms Canyon 976 Comment
  UCR25958  Lotus salsuginosus var. salsuginosus John C. Roos, L. Roos 1952-5-19 5694 Riverside One year old burn on hills north of Moreno 518 Comment
  UCR25962  Cryptantha utahensis John C. Roos 1948-5-1 3816 Riverside Western Colorado Desert/ San Bernardino Mtns., Whitewater, N slope on a mountainside 549 Comment
  UCR26090  Machaeranthera cognata John C. Roos 1947-2-1 3226 Riverside Western Colorado Desert, Painted Canyon, Mecca Hills. Comment
  UCR26138  Stylocline gnaphaloides John C. Roos 1952-4-23 5580 Riverside Box Springs Mtns, 1 yr old burn, north side of mtns 457 Comment
  UCR26218  Euphorbia albomarginata John C. Roos 1951-9-25 5269 Riverside City of Riverside, Fairmount Park 259 Comment
  UCR26226  Camissonia refracta John C. Roos 1947-2-15 3266 Riverside Sonoran (Colorado) Desert, Lost Palms Canyon, south face of Eagle Mtns., west of Hayfield Dry Lake 997 Comment
  UCR26250  Fouquieria splendens John C. Roos 1937-4-28 1288 Riverside Sonoran (Colorado) Desert, 35 mi. west of Desert Center [near Cactus City] Comment
  UCR26282  Gilia capitata subsp. abrotanifolia John C. Roos, L. Roos 1952-4-27 5585 Riverside San Timoteo Canyon, south of Redlands 427 Comment
  UCR26284  Hordeum intercedens John C. Roos 1952-4-23 5571 Riverside Perris-Aguanga Basin region, 1 mi SE of Perris 427 Comment
  UCR26287  Leptochloa uninervia John C. Roos, L. Roos 1951-10-24 5332 Riverside City of Riverside, between Arlington area and Pedley 229 Comment
  UCR26289  Aristida purpurea var. nealleyi John C. Roos 1951-10-19 5325 Riverside Badlands at Old Jackrabbit Trail 610 Comment
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Mar 20 2011
  UCR26309  Zannichellia palustris John C. Roos 1937-5-10 508 Riverside Lake Elsinore Comment
  UCR27415  Allium haematochiton John C. Roos 1950-3-18 4714 Riverside Peninsular Range, 3 - 4 mi north of Murrietta in the hills 457 Comment
  UCR30480  Ranunculus hebecarpus John C. Roos 1950-5-6 4790 Riverside Santa Ana Mtns., Hagador Canyon 427 Comment
  UCR30540  Setaria verticillata John C. Roos 1952-5-14 5660 Riverside San Bernardino Valley, Riverside, corner of Iowa Avenue and 8th Street 305 Comment
  UCR31680  Nemacladus longiflorus var. longiflorus John C. Roos 1947-3-15 3343 Riverside Peninsular Range; San Jacinto Valley/ San Jacinto Mtns. Foothills, 1 mile east of Valle Vista 549 Comment
  UCR31681  Gilia scopulorum John C. Roos, Lucille Roos 1949-4-10 4226 Riverside Sonoran (Colorado) Desert, Chuckwalla Mts, rocky hillside 3.5 mi. SE of Desert Center Comment
  UCSB37350  Prunus virginiana var. demissa Roos, John 1965-7-3 Riverside Dark Canyon, north fork of the San Jacinto River, San Jacinto Mtns. Comment
  UCSB37780  Aristida purpurea Roos, John 1965-8-15 Riverside Gilman Hot Springs, San Jacinto Valley Comment
  UCSB37797  Helianthus niveus Roos, John 1965-4-28 Riverside Palm Springs Comment
  UCSB37801  Ericameria paniculata Roos, John 1965-11-6 Riverside Whitewater 304 Comment
  UCSB37826  Tiquilia plicata Roos, John 1965-6-23 Riverside North of Indio; in the Coachella Valley Comment
  UCSB45533  Collinsia heterophylla Roos, John 1952-4-13 Riverside Box Springs Mts Comment
  UCSB45566  Melica frutescens Roos, John 1948-5-1 Riverside Whitewater 518 Comment
  UCSB45601  Plagiobothrys canescens Roos, John 1952-4-16 Riverside Pigeon Pass, Box Springs Mts. 396 Comment
  UCSB45604  Schoenoplectus acutus var. occidentalis Roos, John; Roos, Lucille 1952-6-10 Riverside Fairmount Park, Riverside 259 Comment
  UCSB45608  Hordeum intercedens Roos, John 1952-4-23 Riverside 1 mile southeast of Perris 426 Comment
  UCSB46750  Pectocarya penicillata Roos, John 1966-4-5 Riverside In the hills near Winchester Comment
  UCSB46882  Marsilea vestita Roos, John 1965-9-16 Riverside Lakeview. Comment
  UCSB51278  Imperata brevifolia John C. Roos 1965-6-23 Riverside collected in Palm Springs Palm Springs Comment
  UCSB51279  Hilaria rigida Roos, John 1965-9-5 Riverside 18 miles W. of Blythe Comment
  UCSB51360  Sporobolus indicus J. C. Roos 1965-11-4 Riverside collected on a lawn at the Fairmont Park, in Riverside Fairmont Park Comment
  UCSB51396  Tridens muticus Roos, John 1966-11-12 Riverside Spring Tank, Chuckwalla Mtns. Comment
  UCSB51406  Eragrostis curvula Roos, John 1965-9-16 Riverside Lakeview Comment
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Sep 19 2018
  POM263182  Poa pratensis J. C. Roos 1937-8-18 466 Riverside Round Valley, San Jacinto Mountains. Comment
  POM266275  Bromus berteroanus J. C. Roos 1942-5-2 1120 Riverside Colorado Desert. Comment
  RSA0006768  Astragalus insularis var. harwoodii J. C. Roos, Lucille Roos 1949-4-11 4241 Riverside Corn Spring, Cuckawalla Mts. Comment
  RSA0010922  Castilleja densiflora subsp. densiflora J. C. Roos 1952-4-16 5558 Riverside Box Springs Mountains, Pigeon Pass. 396 Comment
  RSA0022922  Eschscholzia parishii J. C. Roos 1966-3-26 s.n. Riverside 2 miles SE of Desert Center. Comment
  RSA0030791  Cordylanthus rigidus subsp. setiger J. C. Roos 1965-8-18 s.n. Riverside Thomas Valley, San Jacinto Mtns. Comment
  RSA0034601  Aristida purpurea var. purpurea J. C. Roos 1965-8-15 s.n. Riverside Gilman Hot Springs, San Jacinto Valley. Comment
  RSA0059956  Clarkia unguiculata J. C. Roos, L. Roos 1952-4-28 5587 Riverside South side Fairount Park. 259 Comment
  RSA450449  Eragrostis cilianensis J. C. Roos 1965-7-7 s.n. Riverside San Jacinto. Comment
  RSA78373  Malva parviflora J. C. Roos, L. Roos 1951-5-5 5034 Riverside Fairmont Park 274 Comment
  RSA85475  Cerastium glomeratum J. C. Roos 1952-4-16 5556 Riverside Pigeon Pass, Box Springs Mountains 457 Comment
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May 21 2011
  RSA92568  Astragalus gambelianus J. C. Roos, L. Roos 1952-5-19 5689 Riverside On hills N of Moreno. 518 Comment
  RSA92571  Trifolium obtusiflorum J. C. Roos 1952-5-26 5715 Riverside Hass Ranch. Reche Canyon. 457 Comment
  RSA92585  Atriplex coronata var. notatior J. C. Roos 1952-5-14 5668 Riverside San Jacinto river bottomlands 1 miles southeast of Perris. 426 Comment
  RSA92722  Bromus berteroanus J. C. Roos, L. Roos 1952-5-24 5711 Riverside one-year-old burn on hills north of Moreno 518 Comment
  RSA92724  Loeflingia squarrosa J. C. Roos 1952-5-14 5664 Riverside 2 mi. northwest of Perris. 503 Comment
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May 21 2011
  RSA92742  Eriophyllum multicaule J. C. Roos 1952-5-19 5690 Riverside One year old burn on hills N of Moreno. 503 Comment
  RSA92744  Mentzelia micrantha J. C. Roos 1952-5-19 5695 Riverside On hills N of Moreno. 518 Comment
  RSA92747  Clarkia purpurea subsp. quadrivulnera J. C. Roos 1952-5-26 5716 Riverside Hass Ranch. Reche Canyon. 457 Comment
  RSA92749  Lasthenia gracilis J. C. Roos 1952-5-21 5706 Riverside San Jacinto River bottomland 1.5 miles southeast of Perris 426 Comment
  SEINET13947224 Image available Salazaria mexicana J. C. Roos 1965-1 s.n. Riverside Dos Palmas Springs, Santa Rosa Mountains Comment
  POM301697  Phalaris paradoxa J. C. Roos 1940-6-10 1912 Sacramento West of Sacramento Comment
  UCR24200  Damasonium californicum John C. Roos 1940-6-10 1911 Sacramento Sacramento Valley, West end of a long bridge c. 5 mi west of Sacramento. Comment
  CAS-BOT-BC102148  Arida carnosa J. C. Roos 1956-8-2 6591 San Bernardino North side of Highway 99, 0.2 miles west of Waterman Ave., San Bernardino Valley Comment
  CAS-BOT-BC106152  Brickellia desertorum John Roos; Lucille Roos 1950-9-20 4993 San Bernardino N.W. base of Blue (Rattlesnake) Mtn. at east end DeBerry Stree, Midway beetween Loma Linda and Highgrove. 381 Comment
  CAS-BOT-BC137420  Ivesia argyrocoma J. C. Roos 1965-7-18 s.n. San Bernardino Bear Valley, San Bernardino Mtns. near Fawnskin Comment
  CAS-BOT-BC137834  Andropogon glomeratus var. glomeratus John Roos; Lucille Roos 1950-11-4 5023 San Bernardino Arrowhead Hot Springs, south base San Bernardino Mountains. 609 Comment
  CAS-BOT-BC143380  Horkelia wilderae J. C. Roos 1955-8-20 6505 San Bernardino Barton Flats near Barton Creek, San Bernardino Mountains 1889 Comment
  CAS-BOT-BC148735  Bromus carinatus var. marginatus J. C. Roos 1965-7-18 s.n. San Bernardino San Bernardino Mountains. Moonridge, Bear Valley. Comment
  CAS-BOT-BC169156  Atriplex lentiformis John Roos 1950-10-31 5022 San Bernardino 237 South Waterman Ave., San Bernardino 320 Comment
  CAS-BOT-BC170143  Alnus rhombifolia J. C. Roos 1965-9-11 s.n. San Bernardino Mill Creek, San Bernardino Mountains Comment
  CAS-BOT-BC202090  Lupinus longifolius John Roos; Lucille Roos 1952-5-11 5656 San Bernardino Scott's Canyon 2 1/2 mi. southeast of Loma Linda 426 Comment
  CAS-BOT-BC213893  Elymus trachycaulus subsp. trachycaulus J. C. Roos 1965-7-18 s.n. San Bernardino Moonridge, Bear Valley, San Bernardino Mountains Comment
  CAS-BOT-BC216899  Achnatherum occidentale J. C. Roos 1981-9-1 s.n. San Bernardino Barton Flats, San Bernardino Mountains Comment
  CAS-BOT-BC216900  Achnatherum occidentale J. C. Roos 1965-7-18 s.n. San Bernardino Bear Valley, San Bernardino Mountains Comment
  CAS-BOT-BC221819  Enneapogon desvauxii J. C. Roos 1950-9-3 4970 San Bernardino South side Clark Mtn., Mojave Desert 1828 Comment
  CAS-BOT-BC238206  Cordylanthus tecopensis John C. Roos 1954-7-18 6203 San Bernardino Saratoga Springs, Mohave [Mojave] Desert 60 Comment
  CAS-BOT-BC241652  Eriogonum baileyi var. baileyi J. C. Roos 1965-10-17 s.n. San Bernardino On desert flat at Phelan Rd., south of Victorville Comment
  CAS-BOT-BC282999  Eriochloa lemmonii John C. Roos 1950-8-22 4945 San Bernardino Highland, San Bernardino Valley 457 Comment
  CAS-BOT-BC283678  Leymus condensatus John C. Roos 1952-5-16 5671 San Bernardino 1 mile W of Colton 320 Comment
  CAS-BOT-BC284148  Eragrostis pectinacea var. pectinacea J. C. Roos 1965-7-5 s.n. San Bernardino Loma Linda 304 Comment
  CAS-BOT-BC284732  Hordeum jubatum J. C. Roos 1965-7-18 s.n. San Bernardino Big Bear Lake, San Bernardino Mtns. Comment
  CAS-BOT-BC306710  Helenium bigelovii J. C. Roos 1965-9-11 s.n. San Bernardino Bank of Mill Creek, San Bernardino Mtns. Comment
  CAS-BOT-BC328143  Sanvitalia abertii J. C. Roos; A. R. Roos 1950-8-5 4893 San Bernardino 1 mile south of Coliseum Mine, Clark Mountains, eastern Mohave Desert 1645 Comment
  CAS-BOT-BC328148  Schkuhria John C. Roos 1950-9-1 4955 San Bernardino Coliseum Mine, Clark Mountains, eastern Mohave Desert 1615 Comment
  CAS-BOT-BC328919  Tetradymia argyraea J. C. Roos; A. R. Roos 1950-8-5 4903 San Bernardino Coliseum Mine, Clark Mtns., eastern Mohave Desert 1706 Comment
  CAS-BOT-BC328929  Tetradymia argyraea J. C. Roos 1950-9-2 4965 San Bernardino 1 mile SE of Coliseum Mine, Clark Mtns., Mojave Desert 1615 Comment
  CAS-BOT-BC375126  Stephanomeria cichoriacea J. C. Roos 1965-10-2 s.n. San Bernardino East Fork Mtn Home Canyon, San Bernardino Mtns. Comment
  CAS-BOT-BC388159  Cerastium fontanum John C. Roos 1952-5-12 5658 San Bernardino Loma Linda 320 Comment
  CAS-BOT-BC388484  Herniaria hirsuta var. cinerea John C. Roos 1954-6-5 6123 San Bernardino Loma Linda, San Bernardino Valley 320 Comment
  CAS-BOT-BC434563  Boerhavia wrightii John Roos; Lucille Roos 1950-10-21 5018 San Bernardino Twenty-nine Palms, Mohave Desert. 579 Comment
  CAS-BOT-BC478840  Asparagus officinalis J. C. Roos 1965-9-19 s.n. San Bernardino Loma Linda Comment
  CLARK-A1528-1018  Chrysothamnus nauseosus subsp. ceruminosus John C. Roos 1936-11-4 1528 San Bernardino Victorville 822 Comment
  CLARK-A1528-1023  Heterocodon rariflorum John C. Roos 1937-5-29 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-1045  Artemisia tridentata subsp. tridentata Alfred R. Roos 1948-10-29 San Bernardino Cajon Pass 1219 Comment
  CLARK-A1528-1059  Artemisia ludoviciana John C. Roos 1937-7-27 1970 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-1098  Madia elegans John C. Roos 1937-7-18 401 San Bernardino San Antonio Canyon Comment
  CLARK-A1528-1205  Physalis philadelphica John C. Roos 1940-10-26 220 San Bernardino Loma Linda 335 Comment
  CLARK-A1528-1208  Solanum xanti var. montanum John C. Roos 1937-7-27 1969 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-1214  Solanum elaeagnifolium John C. Roos 1940-8-22 248 San Bernardino Loma Linda Comment
  CLARK-A1528-1261  Glyceria elata John C. Roos 1948-7-10 3921 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-1273  Bromus diandrus John C. Roos 1965-6-6 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-1275  Bromus japonicus John C. Roos 1943-6-22 2711 San Bernardino San Bernardino County Hospital 304 Comment
  CLARK-A1528-1307  Pterospora andromedea John C. Roos 1937-7-20 1993 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-1324  Prunella vulgaris subsp. lanceolata John C. Roos 1937-7-21 2007 San Bernardino San Bernardino Mountains 1920 Comment
  CLARK-A1528-1352  Galium parishii John C. Roos 1936-7-30 958 San Bernardino San Bernardino Mountains 3047 Comment
  CLARK-A1528-1373  Acer glabrum John C. Roos 1941-10-18 860 San Bernardino Rathbone Creek Comment
  CLARK-A1528-1384  Trianthema portulacastrum John C. Roos 1954-11-21 6256 San Bernardino Loma Linda 335 Comment
  CLARK-A1528-1406  Amaranthus retroflexus Alfred R. Roos 1937-11-24 San Bernardino Bryn Mawr Comment
  CLARK-A1528-1449  Osmorhiza brachypoda John C. Roos 1937-5-9 1683 San Bernardino Oak Glen Comment
  CLARK-A1528-1458  Tauschia parishii John C. Roos 1947-6-27 3725 San Bernardino San Bernardino Mountains|South Fork 2194 Comment
  CLARK-A1528-1506  Allium fimbriatum John C. Roos 1950-6-24 4840 San Bernardino Bear Valley 2224 Comment
  CLARK-A1528-1532  Ambrosia psilostachya John C. Roos 1938-8-19 San Bernardino Santa Ana River Comment
  CLARK-A1528-1553  Antennaria rosea John C. Roos 1937-7-20 2375 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-1558  Artemisia bigelovii John C. Roos 1950-9-3 4973 San Bernardino Clark Mountain 1828 Comment
  CLARK-A1528-161  Ambrosia acanthicarpa John C. Roos 1951-9-24 5242 San Bernardino Loma Linda Comment
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Aug 20 2014
  CLARK-A1528-1644  Baileya pauciradiata John C. Roos 1937-4-28 2479 San Bernardino Rice Comment
  CLARK-A1528-1665  Brickellia desertorum John C. Roos 1950-9-30 4993 San Bernardino Loma Linda 380 Comment
  CLARK-A1528-1677  Brickellia incana John C. Roos 1950-8-4 San Bernardino Clark Mountain Comment
  CLARK-A1528-1724  Chrysothamnus nauseosus John C. Roos 1950-10-11 5001 San Bernardino Cajon Pass 914 Comment
  CLARK-A1528-1735  Chrysothamnus parryi subsp. imulus John C. Roos 1949-7-23 4582 San Bernardino San Bernardino Mountains 2194 Comment
  CLARK-A1528-1737  Chrysothamnus parryi subsp. imulus John C. Roos 1951-7-28 5071 San Bernardino San Bernardino Mountains 2072 Comment
  CLARK-A1528-1744  Chrysothamnus viscidiflorus John C. Roos 1941-10-18 856 San Bernardino San Bernardino Mountains 2621 Comment
  CLARK-A1528-1765  Chrysanthemum leucanthemum John C. Roos 1966-6-26 San Bernardino Loma Linda Comment
  CLARK-A1528-1767  Chrysopsis villosa John C. Roos 1942-10-24 2571 San Bernardino Joshua Tree National Monument Comment
  CLARK-A1528-1775  Cirsium nidulum John C. Roos 1949-8-13 4615 San Bernardino New York Mountains 1706 Comment
  CLARK-A1528-1813  Erigeron aphanactis John C. Roos 1949-5-28 4332 San Bernardino Clark Mountains Comment
  CLARK-A1528-1818  Erigeron compositus var. discoideus John C. Roos 1941-8-27 San Bernardino San Bernardino Mountains 3474 Comment
  CLARK-A1528-1823  Erigeron foliosus var. covillei John C. Roos 1943-5-22 2650 San Bernardino Little San Bernardino Mountains Comment
  CLARK-A1528-1828  Erigeron pumilus John C. Roos 1943-7-4 2719 San Bernardino San Bernardino Mountains 2986 Comment
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Jul 3 2014
  CLARK-A1528-1848  Gnaphalium chilense John C. Roos 1965-7-18 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-1914  Helianthus nuttallii John C. Roos 1965-9-22 San Bernardino Victorville Comment
  CLARK-A1528-194  Conyza bonariensis John C. Roos 1951-9-18 5219 San Bernardino Loma Linda 335 Comment
  CLARK-A1528-1944  Hieracium albiflorum John C. Roos 1965-7-17 San Bernardino San Bernardino Mountains 2590 Comment
  CLARK-A1528-1956  Hulsea vestita John C. Roos 1965-6-26 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-1961  Hymenoclea salsola John C. Roos 1965-6-7 San Bernardino Victorville Comment
  CLARK-A1528-1967  Hymenopappus filifolius John C. Roos 1949-6-24 4481 San Bernardino Clark Mountains 2133 Comment
  CLARK-A1528-1971  Iva acerosa John C. Roos 1949-9-2 San Bernardino East Mojave Desert Comment
  CLARK-A1528-1977  Lasthenia chrysostoma John C. Roos 1949-4-30 4277 San Bernardino 883 Comment
  CLARK-A1528-1994  Leucelene ericoides John C. Roos 1949-6-19 4398 San Bernardino Clark Mountain 1889 Comment
  CLARK-A1528-2014  Microseris linearifolia John C. Roos 1965-7-18 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-2031  Ambrosia confertiflora John C. Roos 1937-8-23 San Bernardino Loma Linda Comment
  CLARK-A1528-2073  Raillardella argentea John C. Roos 1941-8-27 34 San Bernardino San Bernardino Mountains 3352 Comment
  CLARK-A1528-2078  Senecio astephanus John C. Roos 1952-6-14 5771 San Bernardino Mountain Home Village 1158 Comment
  CLARK-A1528-2084  Senecio ionophyllus John C. Roos 1964-6-26 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-2106  Stephanomeria cichoriacea John C. Roos 1965-10-2 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-2162  Senecio fremontii subsp. occidentalis John C. Roos 1936-7-30 954 San Bernardino San Bernardino Mountains 3352 Comment
  CLARK-A1528-2204  Coldenia nuttallii John C. Roos 1952-5-17 5679 San Bernardino Mojave Desert 914 Comment
  CLARK-A1528-2218  Cryptantha jamesii John C. Roos 1947-6-21 3687 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-2228  Cryptantha muricata John C. Roos 1948-6-13 3879 San Bernardino San Gabriel Mountains 1219 Comment
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Mar 20 2014
  CLARK-A1528-2243  Lappula redowskii John C. Roos 1937-5-29 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-2245  Lappula redowskii John C. Roos 1967-5-30 San Bernardino San Bernardino Mountains 2285 Comment
  CLARK-A1528-2313  Draba corrugata John C. Roos 1941-8-27 probably 42 San Bernardino San Bernardino Mountains 3352 Comment
  CLARK-A1528-2343  Streptanthus bernardinus John C. Roos 1943-7-31 2692 San Bernardino Lake Arrowhead Comment
  CLARK-A1528-236  Haplopappus venetus subsp. vernonioides John C. Roos 1951-9-24 5248 San Bernardino Loma Linda 304 Comment
  CLARK-A1528-2393  Isomeris arborea John C. Roos 1942-1-1 873 San Bernardino Crystal Mine Comment
  CLARK-A1528-2398  Acer macrophyllum John C. Roos 1965-6-6 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-2400  Amaranthus blitoides John C. Roos 1940-9-14 232 a San Bernardino Comment
  CLARK-A1528-2412  Sambucus mexicana John C. Roos 1965-6-27 San Bernardino Loma Linda 304 Comment
  CLARK-A1528-2416  Symphoricarpos longiflorus John C. Roos 1949-6-19 4401 San Bernardino Clark Mountain Comment
  CLARK-A1528-2422  Arabis parishii John C. Roos 1943-7-4 2720 San Bernardino San Bernardino Mountains 2986 Comment
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Jul 3 2014
  CLARK-A1528-2479  Spergularia marina John C. Roos 1947-5-10 3623 San Bernardino Loma Linda Comment
  CLARK-A1528-2482  Stellaria longipes John C. Roos 1937-7-21 379 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-2486  Stellaria longipes John C. Roos 1965-7-17 San Bernardino San Bernardino Mountains 2438 Comment
  CLARK-A1528-2509  Atriplex torreyi John C. Roos 1950-8-8 San Bernardino Oro Grande Comment
  CLARK-A1528-2512  Atriplex torreyi John C. Roos, Alfred R. Roos 1946-9-21 3059 San Bernardino Mojave Desert 883 Comment
  CLARK-A1528-2542  Atriplex canescens John C. Roos 1948-6-11 San Bernardino Mountain Pass Comment
  CLARK-A1528-2554  Chenopodium album John C. Roos 1965-7-4 San Bernardino Loma Linda 304 Comment
  CLARK-A1528-2621  Dudleya cymosa John C. Roos 1948-6-26 3895 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-2627  Silene antirrhina John C. Roos 1941-5-6 153 San Bernardino Loma Linda Comment
  CLARK-A1528-2641  Euphorbia peplus John C. Roos 1965-6-20 San Bernardino Loma Linda Comment
  CLARK-A1528-2650  Boisduvalia densiflora John C. Roos 1937-7-27 1987 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-2674  Ephedra viridis John C. Roos 1950-8-4 San Bernardino Clark Mountain Comment
  CLARK-A1528-2681  Pyrola californica John C. Roos 1965-7-17 San Bernardino San Bernardino Mountains 2621 Comment
  CLARK-A1528-2691  Croton californicus John C. Roos 1965-6-27 San Bernardino Loma Linda 1000+ ft Comment
  CLARK-A1528-2695  Eremocarpus setiger John C. Roos 1940-8-27 San Bernardino Loma Linda Comment
  CLARK-A1528-2711  Ricinus communis John C. Roos 1937-9-5 2554 San Bernardino Loma Linda Comment
  CLARK-A1528-2717  Tragia ramosa John C. Roos 1950-9-3 4978 San Bernardino Clark Mountain Range 1859 Comment
  CLARK-A1528-2721  Acacia greggii John C. Roos 1947-8-2 3733 San Bernardino Pipes Wash 1310 Comment
  CLARK-A1528-2725  Amorpha californica John C. Roos 1948-6-13 3875 San Bernardino San Gabriel Mountains Comment
  CLARK-A1528-2764  Dalea arborescens John C. Roos 1947-4-18 3444 San Bernardino Barstow Comment
  CLARK-A1528-2781  Glycyrrhiza lepidota John C. Roos 1965-6-16 San Bernardino Victorville 914 Comment
  CLARK-A1528-2795  Lotus argyraeus subsp. multicaulis John C. Roos 1949-6-21 3556 San Bernardino New York Peak 2224 Comment
  CLARK-A1528-2801  Lotus nevadensis John C. Roos 1947-6-27 3714 San Bernardino San Bernardino Mountains 1767 Comment
  CLARK-A1528-2807  Lotus strigosus John C. Roos 1947-2-22 3280 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-2833  Lupinus flavoculatus John C. Roos 1949-6-20 4415 San Bernardino Little San Bernardino Mountains 1676 Comment
  CLARK-A1528-2868  Prosopis glandulosa John C. Roos 1947-4-18 3458 San Bernardino Amargosa River Comment
  CLARK-A1528-2873  Psoralea castorea John C. Roos 1952-5-10 5642 San Bernardino 822 Comment
  CLARK-A1528-2884  Trifolium microcephalum John C. Roos 1937-5-28 1689 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-2911  Quercus wislizeni var. frutescens John C. Roos 1946-9-4 2946 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-2927  Quercus kelloggii John C. Roos 1946-9-4 2944 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-2981  Nama hispida John C. Roos 1949-4-9 4221 San Bernardino Vidal 15' quadrangle Comment
  CLARK-A1528-3051  Pyrola picta John C. Roos 1941-9-9 78 San Bernardino San Bernardino Mountains 2224 Comment
  CLARK-A1528-3057  Lupinus excubitus John C. Roos 1965-6-6 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-3089  Pellaea mucronata John C. Roos 1965-6-6 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-3124  Salvia mohavensis John C. Roos 1949-6-25 4495 San Bernardino Clark Mountains 1645 Comment
  CLARK-A1528-3135  Agastache urticifolia John C. Roos 1946-8-31 2990 San Bernardino Oak Glen Comment
  CLARK-A1528-3137  Molucella laevis John C. Roos 1965-6-20 San Bernardino Loma Linda Comment
  CLARK-A1528-3163  Mentzelia dispersa John C. Roos 1947-6-14 3676 San Bernardino San Bernardino Mountains 1584 Comment
  CLARK-A1528-3167  Mentzelia longiloba John C. Roos 1949-5-29 4373 San Bernardino Clark Mountain Range 1219 Comment
  CLARK-A1528-3178  Monardella macrantha John C. Roos, Lucille Roos 1952-6-14 5770 San Bernardino San Bernardino Mountains 1158 Comment
  CLARK-A1528-3242  Sidalcea neomexicana var. parviflora John C. Roos 1949-4-30 4267 San Bernardino Lucerne Valley 883 Comment
  CLARK-A1528-3246  Sphaeralcea ambigua subsp. monticola John C. Roos 1937-4-27 1657 San Bernardino Goffs Comment
  CLARK-A1528-3254  Abronia villosa John C. Roos 1937-5-30 2042 San Bernardino Victorville Comment
  CLARK-A1528-3260  Allionia incarnata John C. Roos 1950-9-1 4952 San Bernardino Valley Wells 1127 Comment
  CLARK-A1528-3279  Mirabilis froebelii John C. Roos 1949-5-29 4379 San Bernardino Clark Mountains Comment
  CLARK-A1528-3296  Epilobium brevistylum John C. Roos 1943-7-31 2693 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-3316  Boisduvalia stricta John C. Roos 1965-9-15 San Bernardino Victorville Comment
  CLARK-A1528-3330  Camissonia kernensis subsp. gilmanii John C. Roos 1952-4-22 5568 San Bernardino 304 Comment
  CLARK-A1528-3339  Epilobium brevistylum John C. Roos 1965-7-18 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-3360  Camissonia strigulosa John C. Roos 1949-4-18 4287 San Bernardino Loma Linda 304 Comment
  CLARK-A1528-3370  Clarkia rhomboidea John C. Roos 1965-6-12 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-3379  Epipactis gigantea John C. Roos 1965-9-11 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-3386  Habenaria sparsiflora John C. Roos 1964-8-1 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-3421  Platanus racemosa John C. Roos 1947-4-26 3600 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-3427  Plantago lanceolata John C. Roos 1965-6-24 San Bernardino Ontario Comment
  CLARK-A1528-3441  Linanthus breviculus John C. Roos 1945-6-27 3724 San Bernardino San Bernardino Mountains 2285 Comment
  CLARK-A1528-3443  Linanthus breviculus John C. Roos 1937-5-31 2038 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-3445  Navarretia atractyloides John C. Roos 1948-6-13 3878 San Bernardino Fontana Comment
  CLARK-A1528-3464  Linanthus breviculus John C. Roos 1965-6-26 San Bernardino Fish Creek Comment
  CLARK-A1528-3485  Linanthus parryae John C. Roos, Lucille Roos 1952-5-10 5645 San Bernardino Adelanto 914 Comment
  CLARK-A1528-3487  Microsteris gracilis John C. Roos 1967-5-30 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-3517  Gilia splendens subsp. splendens John C. Roos 1937-7-20 2366 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-3525  Ipomopsis aggregata John C. Roos 1949-5-29 4378 San Bernardino Comment
  CLARK-A1528-3527  Ipomopsis polycladon John C. Roos, Lucille Roos 1952-5-10 5638 San Bernardino 838 Comment
  CLARK-A1528-3545  Abies concolor John C. Roos 1950-8-6 701 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-3550  Pinus flexilis John C. Roos 1936-7-30 955 San Bernardino San Bernardino Mountains 0 Comment
  CLARK-A1528-3574  Cryptogramma crispa subsp. acrostichoides John C. Roos 1946-9-15 3040 San Bernardino San Bernardino Mountains 3002 Comment
  CLARK-A1528-3595  Polygala acanthoclada John C. Roos 1949-6-22 4453 San Bernardino New York Mountains 1737-1829 Comment
  CLARK-A1528-3609  Chorizanthe watsonii John C. Roos 1949-4-30 San Bernardino Hesperia Comment
  CLARK-A1528-3692  Eriogonum plumatella John C. Roos 1965-7-21 San Bernardino Victorville Comment
  CLARK-A1528-3696  Eriogonum pusillum John C. Roos 1937-7-14 1817 San Bernardino San Bernardino Comment
  CLARK-A1528-3726  Eriogonum wrightii subsp. subscaposum John C. Roos 1937-7-22 1162 San Bernardino San Gorgonio Wilderness Comment
  CLARK-A1528-3760  Oxytheca parishii John C. Roos, Lucille Roos 1950-9-23 4991 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-3779  Polygonum bistortoides John C. Roos 1937-7-28 2353 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-3786  Polygonum douglasii subsp. johnstonii John C. Roos 1937-7-20 2368 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-3796  Rumex californicus John C. Roos 1965-7-17 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-3802  Rumex salicifolius John C. Roos 1937-7-22 1170 San Bernardino South Fork Meadows Comment
  CLARK-A1528-3819  Calyptridium umbellatum John C. Roos 1937-7-17 2416 San Bernardino San Gabriel Mountains 2682 Comment
  CLARK-A1528-3820  Calyptridium umbellatum John C. Roos 1936-5-9 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-3849  Clematis ligusticifolia John C. Roos 1966-8-6 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-3889  Ceanothus greggii John C. Roos 1946-10-5 3118 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-3890  Ceanothus greggii John C. Roos 1965-6-26 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-3954  Galium parishii John C. Roos 1946-10-5 3120 San Bernardino Pipes Canyon Comment
  CLARK-A1528-3992  Geum macrophyllum John C. Roos 1965-7-31 San Bernardino San Bernardino Mountains 2133 Comment
  CLARK-A1528-4003  Horkelia wilderae John C. Roos 1965-6-26 San Bernardino San Bernardino Mountains 2133 Comment
  CLARK-A1528-4005  Ivesia santolinoides John C. Roos 1947-6-21 Roos No. 3689 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4008  Cercocarpus intricatus John C. Roos 1948-9-18 4067 San Bernardino Clark Mountain Range 1706 Comment
  CLARK-A1528-402  Atriplex polycarpa John C. Roos 1951-9-15 5208 San Bernardino Loma Linda 304 Comment
  CLARK-A1528-4024  Potentilla wheeleri John C. Roos 1937-7-23 1184 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4035  Prunus virginiana subsp. demissa John C. Roos 1946-10-1 2991 San Bernardino Oak Glen Comment
  CLARK-A1528-4061  Populus tremuloides John C. Roos 1967-7-8 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4063  Populus trichocarpa var. ingrata John C. Roos 1936-8-15 563 San Bernardino San Bernardino Mountains 1981 Comment
  CLARK-A1528-4067  Populus tremuloides John C. Roos 1965-6-26 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4071  Azolla filiculoides John C. Roos 1947-2-27 3269 San Bernardino Colton Comment
  CLARK-A1528-4077  Selaginella watsonii John C. Roos 1965-7-17 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4078  Selaginella watsonii John C. Roos 1946-9-4 2947 San Bernardino San Bernardino Mountains 3352 Comment
  CLARK-A1528-408  Chenopodium ambrosioides John C. Roos 1975-9-19 5227 San Bernardino Loma Linda 304 Comment
  CLARK-A1528-409  Chenopodium murale John C. Roos 1951-9-16 5211 San Bernardino Loma Linda 320 Comment
Read comments
Jan 16 2015
  CLARK-A1528-4110  Parnassia cirrata John C. Roos 1946-9-4 2972 San Bernardino San Bernardino Mountains 2438 Comment
  CLARK-A1528-4136  Ribes montigenum John C. Roos 1946-9-4 2949 San Bernardino San Gorgonio Peak 3413 Comment
  CLARK-A1528-4140  Ribes montigenum John C. Roos 1949-7-4 4536 San Bernardino San Bernardino Mountains 3498 Comment
  CLARK-A1528-4189  Collinsia heterophylla var. austromontana John C. Roos 1956-5-26 6579 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4190  Collinsia heterophylla var. austromontana John C. Roos 1948-6-13 3876 San Bernardino Lytle Creek Comment
  CLARK-A1528-4199  Cordylanthus nevinii John C. Roos 1942-8-22 1752 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4211  Keckiella antirrhinoides John C. Roos 1965-6-6 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4215  Limosella aquatica John C. Roos 1946-10-5 3107 San Bernardino San Bernardino Mountains 1356 Comment
  CLARK-A1528-4221  Antirrhinum filipes John C. Roos 1937-4-26 2126 San Bernardino Providence Mountains Comment
  CLARK-A1528-4250  Mimulus guttatus John C. Roos 1943-4-9 2614 San Bernardino San Bernardino Comment
  CLARK-A1528-4259  Mimulus longiflorus John C. Roos 1947-2-22 3289 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4281  Orthocarpus hispidus John C. Roos 1940-7-16 1848 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4291  Pedicularis semibarbata John C. Roos 1939-5-26 716 San Bernardino San Bernardino Mountains 2285 Comment
  CLARK-A1528-4297  Penstemon caesius John C. Roos 1937-7-22 1171 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4325  Veronica americana John C. Roos 1936-8-15 577 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-433  Eremocarpus setiger John C. Roos 1951-9-25 5291 San Bernardino Highgrove 274 Comment
  CLARK-A1528-4364  Physalis hederifolia John C. Roos 1937-4-26 800 San Bernardino Providence Mountains Comment
  CLARK-A1528-4385  Celtis reticulata John C. Roos 1962-10-29 San Bernardino Yucaipa Comment
  CLARK-A1528-4387  Hesperocnide tenella John C. Roos 1969-5-17 San Bernardino Loma Linda Hills 365 Comment
  CLARK-A1528-4395  Lippia lanceolata John C. Roos, Lucille Roos 1951-9-29 5306 San Bernardino Warm Creek 304 Comment
  CLARK-A1528-4397  Lippia nodiflora John C. Roos 1937-7-31 526 San Bernardino San Bernardino Comment
  CLARK-A1528-4409  Viola douglasii John C. Roos 1937-5-15 1188 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4426  Zannichellia palustris John C. Roos 1947-9-3 3740 San Bernardino Loma Linda 304 Comment
  CLARK-A1528-4439  Tribulus terrestris John C. Roos 1951-9-21 5232 San Bernardino Loma Linda 323 Comment
  CLARK-A1528-4446  Agrostis idahoensis John C. Roos 1946-9-4 2943 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4460  Aristida adscensionis John C. Roos 1937-6-26 San Bernardino Redlands Comment
  CLARK-A1528-4470  Aristida glauca John C. Roos 1937-4-27 554 San Bernardino Mojave Desert Comment
  CLARK-A1528-4496  Avena fatua Alfred R. Roos 1938-2-13 San Bernardino Loma Linda Comment
  CLARK-A1528-4526  Bouteloua gracilis John C. Roos 1949-5-28 3552 San Bernardino Clark Mountain Range Comment
  CLARK-A1528-4530  Bromus arenarius John C. Roos 1949-6-22 3547 San Bernardino New York Mountains 1737 Comment
  CLARK-A1528-4539  Bromus japonicus John C. Roos 1943-6-22 2711 San Bernardino San Bernardino County Hospital 304 Comment
  CLARK-A1528-4579  Deschampsia cespitosa John C. Roos 1940-8-3 1554 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4617  Eriochloa acuminata John C. Roos 1951-8-4 5080 San Bernardino San Bernardino Valley 365 Comment
  CLARK-A1528-4618  Eriochloa acuminata John C. Roos 1950-8-22 4945 San Bernardino San Bernardino Valley Comment
  CLARK-A1528-4623  Eriochloa acuminata John C. Roos 1937-9-5 6614 San Bernardino Loma Linda 304 Comment
  CLARK-A1528-4627  Eragrostis barrelieri John C. Roos 1965-9-22 San Bernardino Barstow Comment
  CLARK-A1528-4641  Eragrostis diffusa John C. Roos 1951-9-18 521 San Bernardino Loma Linda 335 Comment
  CLARK-A1528-4648  Festuca californica subsp. parishii John C. Roos 1919-6-1 92 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4650  Festuca californica subsp. parishii John C. Roos 1919-7-24 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4683  Holcus lanatus John C. Roos 1940-8-17 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4687  Hordeum californicum John C. Roos 1940-8-3 1583 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4688  Hordeum californicum John C. Roos 1965-7-18 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4713  Leptochloa uninervia John C. Roos 1937-7-31 2358 San Bernardino San Bernardino Comment
  CLARK-A1528-4741B  Muhlenbergia andina John C. Roos 1943-11-6 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4743  Muhlenbergia andina John C. Roos 1965-9-11 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4748  Muhlenbergia californica John C. Roos 1949-9-24 4666 San Bernardino San Bernardino Mountains 1920 Comment
  CLARK-A1528-4750  Muhlenbergia californica John C. Roos 1946-8-31 2927 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4783  Panicum capillare John C. Roos 1937-7-19 377 San Bernardino Santa Ana River Comment
  CLARK-A1528-4803  Phalaris minor John C. Roos 1952-4-21 5564 San Bernardino Loma Linda 304 Comment
  CLARK-A1528-4805  Phleum alpinum John C. Roos 1965-7-31 San Bernardino San Bernardino Mountains 2285 Comment
  CLARK-A1528-4814  Poa annua John C. Roos 1952-2-27 5359 San Bernardino Loma Linda 335 Comment
  CLARK-A1528-4831  Poa pratensis John C. Roos 1940-8-17 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4833  Poa scabrella John C. Roos 1950-8-4 San Bernardino Clark Mountain Comment
  CLARK-A1528-4861  Quercus kelloggii John C. Roos 1946-9-4 2945 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4863  Leucelene ericoides John C. Roos 1949-6-18 4395 San Bernardino Mountain Pass 1523 Comment
  CLARK-A1528-4871  Quercus wislizeni var. frutescens John C. Roos 1939-6-10 720 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4875  Lupinus polyphyllus subsp. bernardinus John C. Roos 1937-7-22 1705 San Bernardino South Fork Meadows Comment
  CLARK-A1528-4884  Monardella odoratissima subsp. australis John C. Roos 1937-7-20 1177 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4904  Acer glabrum John C. Roos 1963-8-18 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4921  Lomatium mohavense John C. Roos 1937-3-1 1298 San Bernardino Victorville Comment
  CLARK-A1528-4923  Nitrophila occidentalis John C. Roos 1937-5-30 2044 San Bernardino Victorville Comment
  CLARK-A1528-4947  Medicago polymorpha John C. Roos 1948-4-17 3781 San Bernardino Loma Linda Comment
  CLARK-A1528-5042  Sitanion longifolium John C. Roos 1965-7-17 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-5079  Emmenanthe penduliflora John C. Roos 1941-6-5 155 San Bernardino Loma Linda Hills Comment
  CLARK-A1528-5082  Eucrypta micrantha John C. Roos 1949-4-9 4204 San Bernardino Whipple Mountains 304 Comment
  CLARK-A1528-5123  Salazaria mexicana John C. Roos 1965-6-1 San Bernardino Adelanto Comment
  CLARK-A1528-5127  Antennaria rosea John C. Roos 1939-6-3 6/ 3 /39 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-5183  Phoradendron macrophyllum John C. Roos 1965-12-11 San Bernardino San Bernardino Mountains 1097 Comment
  CLARK-A1528-5206  Eriogonum parishii John C. Roos 1936-8-15 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-5253  Stipa lettermanii John C. Roos 1946-8-25 2929 San Bernardino San Bernardino Mountains 2377 Comment
  CLARK-A1528-5306  Trisetum canescens John C. Roos 1940-8-17 1593 San Bernardino San Bernardino Mountains 2011 Comment
  CLARK-A1528-5332  Quercus wislizeni John C. Roos 1956-6-5 6586 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-5358  Ambrosia confertiflora John C. Roos 1949-10-12 4691 San Bernardino Loma Linda Comment
  CLARK-A1528-5362  Glechoma hederacea John C. Roos 1954-4-7 Clark Herbarium 6059 San Bernardino San Bernardino Valley 350 Comment
  CLARK-A1528-5407  Glycyrrhiza lepidota John C. Roos 1965-6-16 San Bernardino Victorville 914 Comment
  CLARK-A1528-5424  Astragalus lentiginosus var. fremontii John C. Roos 1949-5-28 4341 San Bernardino Clark Mountain Range Comment
  CLARK-A1528-5461  Chrysothamnus nauseosus John C. Roos 1950-10-11 5002 San Bernardino Cajon Pass 975 Comment
  CLARK-A1528-5463  Chrysothamnus nauseosus John C. Roos, Lucille Roos 1950-10-17 5010 San Bernardino Little Pigeon Pass 320 Comment
  CLARK-A1528-5494  Gaura sinuata John C. Roos 1949-10-8 4689 San Bernardino Jurupa Hills 304 Comment
  CLARK-A1528-5537  Setaria viridis John C. Roos 1963-8-9 San Bernardino Loma Linda Comment
  CLARK-A1528-5538  Sitanion jubatum John C. Roos 1937-5-28 2048 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-5578  Muhlenbergia pauciflora John C. Roos 1948-9-18 4055 San Bernardino Clark Mountain 1523 Comment
  CLARK-A1528-5619  Corethrogyne filaginifolia John C. Roos 1947-7-18 3730 San Bernardino Loma Linda Comment
  CLARK-A1528-5653  Atriplex confertifolia John C. Roos 1937-3-1 San Bernardino Victorville Comment
  CLARK-A1528-5655  Atriplex canescens John C. Roos 1965-7-21 San Bernardino Victorville Comment
  CLARK-A1528-5657  Chenopodium glaucum John C. Roos 1937-7-27 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-5702  Oxalis corniculata John C. Roos 1949-11-18 4697 San Bernardino San Bernardino Valley Comment
  CLARK-A1528-7755  Horkelia bolanderi subsp. parryi John C. Roos 1940-7-16 1854 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-7757  Horkelia californica John C. Roos 1937-7-31 8 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-7766  Euphorbia maculata John C. Roos, Lucille Roos 1951-7-28 5066 San Bernardino Redlands 365 Comment
  CLARK-A1528-7780  Asclepias californica John C. Roos 1965-7-24 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-7790  Tetradymia canescens John C. Roos 1949-6-25 3560 San Bernardino Clark Mountain Range 1615 Comment
  CLARK-A1528-7800  Eragrostis mexicana John C. Roos 1950-5-16 4811 San Bernardino Highland 457 Comment
  CLARK-A1528-7842  Machaeranthera arida John C. Roos 1949-6-26 3561 San Bernardino Mesquite Valley 792 Comment
  CLARK-A1528-7846  Machaeranthera arida John C. Roos 1949-6-26 3561 San Bernardino Mesquite Valley 792 Comment
  CLARK-A1528-866  Mimulus guttatus John C. Roos 1951-9-24 5241 San Bernardino Loma Linda Comment
  CLARK-A1528-996  Epilobium glandulosum John C. Roos 1937-7-21 2000 San Bernardino San Bernardino Mountains Comment
  LA102248  Romneya coulteri John C. Roos; 1952-6-8 sn San Bernardino San Timoteo Canyon, S. of Redlands 457 Comment
  LA102277  Arida carnosa John C. Roos; 1956-8-2 6591 San Bernardino N side of Highway 99, 0.2 mi. W of Waterman Ave Comment
  LA102298  Quercus turbinella John C. Roos; 1949-8-13 4621 San Bernardino New York Mountains, Keystone Canyon, near Copper Queen Mine 1828 Comment
  LA102304  Populus tremuloides J. C. Roos; 1965-6-26 sn San Bernardino San Bernardino Mountains, Fish Creek, near Barton Flats Comment
  LA102307  Potentilla gracilis J. C. Roos; 1937-7-26 338 San Bernardino San Bernardino Mountains, Bear Valley, Pine Knot ( now city of Big Bear ) Comment
  LA102369  Artemisia tridentata subsp. tridentata Alfred R. Roos; 1950-8-6 sn San Bernardino Kingston Range, N side of Kingston Range, pass on the road to Tecopa and slopes above 1523 Comment
  OBI35845  Eragrostis pectinacea A. R. Roos 1937-11-25 s.n. San Bernardino Highland, E of San Bernardino Comment
  OBI45203  Eragrostis pectinacea John C. Roos 1940-9-14 231 a San Bernardino San Bernardino Valley, S of Bryn Mawr Comment
  POM251753  Boerhavia intermedia J. C. Roos 1937-8-25 13 San Bernardino Mountain Pass, Ivanpah Mts., eastern San Bernardino Co. Comment
  POM261198  Horkelia wilderae J. C. Roos 1941-5-31 94 San Bernardino Fish Creek 2073 Comment
  POM261199  Sibbaldia procumbens J. C. Roos 1941-8-27 29 San Bernardino Between Dry Lake and San Gorgonio Peak 3049 Comment
  POM261417  Festuca brachyphylla J. C. Roos 1941-8-27 30 San Bernardino Between Dry Lake and San Gorgonio Peak 3049 Comment
  POM262904  Malaxis brachypoda J. C. Roos 1937-7-22 329 San Bernardino South Fork, Santa Ana River 2439 Comment
  POM262919  Pseudotsuga macrocarpa J. C. Roos 1937-7-15 381 San Bernardino Lytle Creek. Comment
  POM262936  Lomatium lucidum J. C. Roos 1939-5-20 722 San Bernardino Waterman Canyon; San Bernardino Mts. 762 Comment
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Sep 3 2013
  POM262937  Arenaria ursina J. C. Roos 1939-5-26 719 San Bernardino Bear Valley, San Bernardino Mts. Comment
  POM262946  Helianthemum scoparium J. C. Roos 1941-2-1 226 San Bernardino Rocky mountain south of Reche Canyon Comment
  POM262959  Calochortus splendens J. C. Roos 1941-5-6 135 San Bernardino Near Loma Linda. Comment
  POM262960  Castilleja linariifolia J. C. Roos 1941-4-26 140 San Bernardino Sand hills west of Colton. Comment
  POM262996  Ambrosia acanthicarpa J. C. Roos 1940-9-28 233 San Bernardino Loma Linda. Comment
  POM263066  Lupinus nanus subsp. nanus J. C. Roos 1937-4-17 511 San Bernardino Redlands. In Hills, Sunset Dr. Comment
  POM263086  Agrostis exarata J. C. Roos 1937-7-31 412 San Bernardino Crestline, San Bernardino Mountains. Comment
  POM263100  Plantago erecta J. C. Roos 1941-3-8 207 San Bernardino Reche Canyon. Comment
  POM263103  Polygonum kelloggii J. C. Roos 1937-7-27 327 San Bernardino Near Grout Bay, Bear Valley. Comment
  POM263113  Danthonia californica var. americana J. C. Roos 1937-7-28 414 San Bernardino Bluff Lake, San Bernardino Mountains. Comment
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Jan 10 2015
  POM263145  Mahonia dictyota J. C. Roos 1941-2-1 204 San Bernardino Reche Canyon. Comment
  POM263150  Acer negundo subsp. californicum J. C. Roos 1936-8-26 697 San Bernardino Mouth of Live Oak Canyon, just off San Timoteo Canyon. Comment
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Apr 29 2009
  POM263169  Prunella vulgaris subsp. lanceolata J. C. Roos 1936-8-15 567 San Bernardino South Fork Camp: Upper Santa Ana River. Comment
  POM263189  Agrostis scabra J. C. Roos 1937-7-25 410 San Bernardino Clark's Grade, San Bernardino Mountains. Comment
  POM263546  Wislizenia refracta subsp. refracta J. C. Roos 1937-4-23 655 San Bernardino Oasis at Twentynine Palms Comment
  POM263560  Eriogonum wrightii var. subscaposum J. C. Roos 1937-7-15 386 San Bernardino Stockton Flats, San Gabriel Mountains. Comment
  POM264132  Zigadenus brevibracteatus J. C. Roos 1937-5-30 637 San Bernardino Deep Creek, southern edge of Mojave Desert. Comment
  POM264148  Cyperus parishii J. C. Roos 1937-7-14 622 San Bernardino Near San Bernardino. Comment
  POM264149  Juncus bufonius J. C. Roos 1937-7-14 621 San Bernardino Near San Bernardino. Comment
  POM264279  Phacelia hastata J. C. Roos 1937-7-22 684 San Bernardino Dry lake, in the water, San Bernardino Mtns. 2744 Comment
  POM264416  Chenopodium chenopodioides J. C. Roos 1937-7-26 612 San Bernardino East Bear Valley, San Bernardino Mtns. Comment
  POM265673  Boykinia rotundifolia J. C. Roos 1942-8-15 1753 San Bernardino Hillside south of and below Crestline. Comment
  POM265717  Atriplex canescens var. laciniata J. C. Roos 1937-8-24 1206 San Bernardino Barstow, Mojave Desert Comment
  POM265724  Amaranthus palmeri J. C. Roos 1940-6-24 1895 San Bernardino Loma Linda. Comment
  POM265757  Achnatherum speciosum J. C. Roos 1937-5-28 2049 San Bernardino By roadside; Horsethief Canyon, Off Cajon Pass. Comment
  POM265771  Phacelia davidsonii J. C. Roos 1937-5-9 2091 San Bernardino Oak Glen, San Bernardino Mountains. Comment
  POM266282  Ericameria parishii J. C. Roos 1942-11-14 2582 San Bernardino Cedar Springs, N base of San Bernardino Mts. 1037 Comment
  POM266295  Gnaphalium thermale J. C. Roos 1937-8-19 2501 San Bernardino Idyllwild 1616 Comment
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Feb 18 2013
  POM266340  Poa secunda J. C. Roos 1942-5-1 1156 San Bernardino Hillside S of Quail Springs, Joshua Tree National Monument, San Bernardino County Comment
  POM266367  Pyrrocoma uniflora var. gossypina J. C. Roos 1937-7-26 2472 San Bernardino Bear Valley, Pine Knot. Comment
  POM266373  Tetradymia comosa J. C. Roos 1940-6-24 1587 San Bernardino South of Loma Linda. Comment
  POM266633  Yucca whipplei var. whipplei J. C. Roos 1937-4-17 1378 San Bernardino San Timoteo Canyon, near Redlands. Comment
  POM266829  Bromus grandis J. C. Roos 1898 San Bernardino Small canyon, above Highland. Comment
  POM274188  Ranunculus cymbalaria var. saximontanus J. C. Roos 1946-8-29 2771 San Bernardino Eagle Point, Bear Valley. 2043 Comment
  POM301474  Castilleja lasiorhyncha J. C. Roos 1940-7-21 1568 San Bernardino Green Valley 2073 Comment
  POM301520  Fraxinus velutina var. coriacea J. C. Roos 1937-5-29 830 San Bernardino Along a flume on hillside, Deep Creek, N slope of San Bernardino Mts. Comment
  POM301523  Apocynum sibiricum J. C. Roos 1937-7-27 963 San Bernardino shore of Baldwin Lake. 2165 Comment
  POM301602  Cryptantha cinerea var. abortiva J. C. Roos 1937-7-31 1839 San Bernardino Pine flats E of mouth of Lost Creek, San Bernardino Mts 1982 Comment
  POM302483  Amorpha fruticosa J. C. Roos 1943-4-21 2634 San Bernardino Near mouth of Waterman canyon. Comment
  POM302497  Ribes montigenum J. C. Roos 1943-7-4 2715 San Bernardino Sugarloaf Peak, San Bernardino mts. 2896 Comment
  POM302503  Actaea rubra J. C. Roos 1943-7-31 2691 San Bernardino Kuffle Canyon, near Lake Arrowhead. San Bernardino Mountains. 1677 Comment
  POM302525  Castilleja cinerea J. C. Roos 1943-7-4 2717 San Bernardino Sugarloaf Peak, San Bernardino Mountains. 2988 Comment
  POM302568  Arctostaphylos glauca J. C. Roos 1943-5-23 2654 San Bernardino Little San Bernardino Mountains. 1524 Comment
  POM431196  Filago depressa J. C. Roos 1959-3-28 s.n. San Bernardino 2-5 mi N of Kramer Junction. Comment
  POM431204  Muhlenbergia californica J. C. Roos 1962-9-29 s.n. San Bernardino Mill Creek 2043 Comment
  POM431211  Leptochloa fusca subsp. uninervia J. C. Roos 1965-6-21 s.n. San Bernardino Loma Linda. 305 Comment
  POM444679  Helianthus petiolaris J. C. Roos 1965-6-20 s.n. San Bernardino Ontario: Vineyard Comment
  RSA171382  Ribes roezlii J. C. Roos 1963-8-17 s.n. San Bernardino Mill Creek, San Bernardino Mts. 2073 Comment
  RSA262784  Heliotropium curassavicum var. oculatum J. C. Roos 1940-8-22 244 San Bernardino Loma Linda Comment
  RSA262934  Epilobium canum subsp. latifolium J. C. Roos 1936-8-15 571 San Bernardino Glen Martin, San Bernardino Mountains. Comment
  RSA262979  Salvia columbariae J. C. Roos 1941-4-19 179 San Bernardino Reche Canyon. Comment
  RSA263353  Vulpia octoflora J. C. Roos 1937-4-17 441 San Bernardino San Timoteo Canyon, near Redlands. Comment
  RSA265797  Malacothamnus orbiculatus J. C. Roos 1942-11-28 2585 San Bernardino Deep Creek, at head of Hesperia s water flume; north side of San Bernardino Mts. 1037 Comment
  RSA301535  Mentha suaveolens J. C. Roos 1937-8-2 2271 San Bernardino irrigation ditch near Bryn Mawr, San Bernardino Valley, southern California Comment
  RSA314967  Eragrostis mexicana subsp. virescens J. C. Roos 1951-9-19 5221 San Bernardino At intersection w/ San Bernardino St. on Barton Ave. in Loma Linda. Comment
  RSA40560  Galium parishii J. C. Roos 1946-10-5 3120 San Bernardino The Pipes Creek, east side San Bernardino Mts. Comment
  RSA425014  Nemophila pedunculata J. C. Roos 1950-6-24 4837 San Bernardino Moonridge, Bear Valley, San Bernardino Mtns. 2226 Comment
  RSA425018  Phacelia ramosissima var. latifolia J. C. Roos 1965-6-27 s.n. San Bernardino Loma Linda Hills. 305 Comment
  RSA44250  Aliciella triodon J. C. Roos 1949-5-28 3541 San Bernardino North slope of Clark Mt. 1585 Comment
  RSA44251  Aliciella triodon J. C. Roos 1949-6-25 3542 San Bernardino Flats below Coliseum Mine, Clark Mts. 1585 Comment
  RSA44272  Cryptantha gracilis J. C. Roos 1949-6-24 3559 San Bernardino Summit of Clark Mt, Eastern Mojave Desert Comment
  RSA444465  Penstemon caesius J. C. Roos 1965-7-17 s.n. San Bernardino South Fork, near Barton Flats 2439 Comment
  RSA444485  Phacelia fremontii J. C. Roos 1950-4-26 4766 San Bernardino Rabbit Springs. 884 Comment
  RSA44902  Malacothrix saxatilis var. tenuifolia J. C. Roos 1947-6-27 3710 San Bernardino Mill Creek, San Bernardino Mts. 915 Comment
  RSA44910  Piptatherum micranthum J. C. Roos, Weatherby 1949-9-2 3571 San Bernardino North side of Kingston Mountains 2165 Comment
  RSA44911  Abies concolor J. C. Roos, R. Weatherby 1949-9-2 3570 San Bernardino North slope of Kingston Peak, Mojave Desert. 2165 Comment
  RSA44921  Asclepias fascicularis J. C. Roos 1949-6-21 3699 San Bernardino roadside, Cushenbury Canyon, north base of San Bernardino Mtns. 1677 Comment
  RSA449953  Clarkia purpurea subsp. quadrivulnera J. C. Roos 1965-6-12 s.n. San Bernardino Igo's near Mountain Home Village and Mill Creek. San Bernardino Mountains. [Note: Igo s is present location of Mountain Home Village, Hwy. 38, San Bernardino Mtns. -SDW 2006] Comment
  RSA449962  Epilobium brachycarpum J. C. Roos 1965-7-18 s.n. San Bernardino Snow Valley, San Bernardino Mountains. Comment
  RSA449975  Polygonum lapathifolium J. C. Roos 1965-9-15 s.n. San Bernardino Mohave River at Victorville. Comment
  RSA450063  Croton californicus J. C. Roos 1965-6-27 s.n San Bernardino Loma Linda Hills. 305 Comment
  RSA450096  Ceanothus crassifolius J. C. Roos 1966-3-31 s.n. San Bernardino In the hills of San Timoteo Canyon, near Redlands Blvd. 305 Comment
  RSA450117  Lupinus latifolius J. C. Roos 1965-7-18 s.n. San Bernardino Snow Valley, San Bernardino Mountains. Comment
  RSA450131  Allium lacunosum var. davisiae J. C. Roos 1967-5-20 s.n. San Bernardino Deep Creek, San Bernardino Mountains. Comment
  RSA450134A  Lupinus excubitus var. austromontanus J. C. Roos 1947-2-22 3290 San Bernardino Deep Creek, San Bernardino Mtns Comment
  RSA450134B  Sidalcea malviflora subsp. dolosa J. C. Roos 1965-7-18 s.n. San Bernardino Moonridge, Bear Valley, San Bernardino Mountains. Comment
  RSA450142  Linanthus pungens A. R. Roos, J. C. Roos 1965-6-26 s.n. San Bernardino Upper Santa Ana Basin, near Fish creek. Comment
  RSA450157  Castilleja minor subsp. spiralis J. C. Roos 1965-6-12 s.n. San Bernardino Igo's near Mountain Home Village and Mill Creek. San Bernardino Mountains., [Igo's is present location of Mountain Home Village, Hwy. 38, San Bernardino Mtns. -SDW 2006] Comment
  RSA450165  Mimulus floribundus J. C. Roos 1965-9-11 s.n. San Bernardino Mill Creek. Comment
  RSA450171  Penstemon labrosus J. C. Roos 1965-7-17 s.n. San Bernardino Barton Flats, San Bernardino Mountains. Comment
  RSA450172  Penstemon spectabilis J. C. Roos 1965-6-6 s.n. San Bernardino San Bernardino Mtns, Mill Creek near Fallsvale. Comment
  RSA450185  Pinus contorta var. murrayana J. C. Roos 1965-7-17 s.n. San Bernardino Dry Lake, San Bernardino Mtns. Comment
  RSA450249  Potentilla gracilis var. elmeri J. C. Roos 1965-7-18 s.n. San Bernardino Moonridge, Bear Valley, San Bernardino Mountains. Comment
  RSA450257  Horkelia rydbergii J. C. Roos 1965-7-18 s.n. San Bernardino Snow Valley, San Bernardino Mountains. Comment
  RSA450302  Quercus X morehus J. C. Roos 1965-6-13 s.n. San Bernardino Forest Falls, Mill Creek Comment
  RSA450308  Kelloggia galioides J. C. Roos 1965-7-17 s.n. San Bernardino South Fork, San Bernardino Mts. 2287 Comment
  RSA450309  Mimulus guttatus J. C. Roos 1943-4-9 2614 San Bernardino Slong swampy ditch, Waterman Ave. Comment
  RSA450312  Lathyrus vestitus subsp. laetiflorus J. C. Roos 1949-5-21 4324 San Bernardino Near Aguanga Comment
  RSA450422  Erigeron aphanactis var. congestus J. C. Roos 1967-5-30 s.n. San Bernardino Rocky ridge, E of Broom Flat. Comment
  RSA450434  Geum macrophyllum J. C. Roos 1965-7-31 s.n. San Bernardino South Fork 2134 Comment
  RSA450465  Eragrostis mexicana subsp. virescens A. R. Roos 1937-11-25 s.n. San Bernardino Highland. Comment
  RSA450472  Trichostema parishii J. C. Roos 1965-6-6 s.n. San Bernardino Mill Creek. San Bernardino Mountains. Comment
  RSA450479  Eriophyllum lanatum var. obovatum J. C. Roos 1965-7-18 s.n. San Bernardino Running Springs. 1838 Comment
  RSA450485  Eriophyllum confertiflorum J. C. Roos 1965-6-6 s.n. San Bernardino San Bernardino Mtns, Mill Creek near Fallsvale. Comment
  RSA450492  Hemizonia fasciculata J. C. Roos 1965-6-27 s.n. San Bernardino Loma Linda Hills. 305 Comment
  RSA450659  Hesperostipa comata subsp. comata J. C. Roos 1965-7-18 s.n. San Bernardino Moonridge, Bear Valley, San Bernardino Mountains. Comment
  RSA450753  Solidago californica J. C. Roos 1965-10-2 s.n. San Bernardino Mill Creek, San Bernardino Mountains 1220 Comment
  RSA450768  Antennaria rosea J. C. Roos 1981-09 s.n. San Bernardino upper Santa Ana River Comment
  RSA45212  Astragalus acutirostris J. C. Roos 1949-4-30 4278 San Bernardino Apple Valley 915 Comment
  RSA45214  Calochortus striatus J. C. Roos, L. Roos 1949-5-14 4290 San Bernardino Rabbit Springs, Mojave Desert. 884 Comment
  RSA45217  Mirabilis laevis var. retrorsa J. C. Roos, L. Roos 1949-5-14 4298 San Bernardino Mojave Desert; near Hesperia. 976 Comment
  RSA45219  Salvia dorrii subsp. dorrii J. C. Roos 1949-5-14 4300 San Bernardino 5 miles west of The Windmill; Burns-Pipes Wash, east end San Bernardino Mts. 1220 Comment
  RSA457395  Elymus trachycaulus subsp. trachycaulus J. C. Roos 1965-7-18 s.n. San Bernardino Moonridge, Bear Valley, San Bernardino Mountains. Comment
  RSA47298  Garrya flavescens subsp. flavescens J. C. Roos, L. Roos 1949-6-27 4501 San Bernardino North side Kingston Mts. 1524 Comment
  RSA47303  Dalea searlsiae J. C. Roos, L. Roos 1949-6-20 4411 San Bernardino Keystone Canyon, New York Mountains. 1707 Comment
  RSA47307  Forestiera pubescens J. C. Roos, L. Roos 1949-6-25 4492 San Bernardino Narrow canyon near spring, E face Clark Mountain. 1524 Comment
  RSA47309  Mirabilis pumila J. C. Roos 1949-6-25 4491 San Bernardino In gravelly wash, north side of Clark Mtn., near Colisseum Mine. 1738 Comment
  RSA47310  Chenopodium incanum var. occidentale J. C. Roos 1949-6-22 4456 San Bernardino Barnwell, New York Mts. Comment
  RSA47311  Quercus turbinella subsp. turbinella J. C. Roos 1949-6-22 4452 San Bernardino New York Mountains; Keystone Canyon 1738 Comment
  RSA47320  Agave utahensis var. nevadensis J. C. Roos, L. Roos 1949-6-28 4522 San Bernardino Kingston Mountains, (Tecopa Pass) 1524 Comment
  RSA47321  Bromus marginatus J. C. Roos, L. Roos 1949-6-25 4494 San Bernardino Narrow canyon near spring, E face Clark Mountain. 1524 Comment
  RSA47332  Poa fendleriana J. C. Roos 1949-5-28 4356 San Bernardino N slope Clark, Mts 1829 Comment
  RSA47337  Aquilegia shockleyi J. C. Roos, L. Roos 1949-6-24 4488 San Bernardino north side of Clark Mts. 2287 Comment
  RSA47340  Arabis repanda J. C. Roos 1949-7-16 4556 San Bernardino Moonridge, Bear Valley, San Bernardino Mts. 2256 Comment
  RSA47341  Arabis holboellii var. retrofracta J. C. Roos 1949-7-16 4561 San Bernardino Moonridge, Bear Valley, San Bernardino Mts. 2256 Comment
  RSA47436  Verbena bracteata J. C. Roos, L. Roos 1949-6-20 4413 San Bernardino Mountain Pass, south of Clark Mtn. 1524 Comment
  RSA47438  Mimulus rubellus J. C. Roos, Lucille Roos 1949-5-29 4377 San Bernardino Coliseum Mine, Clark Mountain. 1677 Comment
  RSA47453  Poa secunda J. C. Roos 1949-5-14 4310 San Bernardino Rabbit Springs, Mojave Desert. 884 Comment
  RSA47457  Psathyrotes annua J. C. Roos 1949-6-26 4498 San Bernardino Mesquite Valley, 2 mi S of Kingston 793 Comment
  RSA47459  Hymenopappus filifolius var. eriopodus J. C. Roos 1949-6-24 4481 San Bernardino N side of Clark Mtn. 2134 Comment
  RSA47475  Leucelene ericoides J. C. Roos 1949-6-18 4395 San Bernardino Pmtn Pass, Clark Mtn 1340 Comment
  RSA47480  Brickellia oblongifolia var. linifolia J. C. Roos, L. Roos 1949-6-24 4473 San Bernardino Summit of Clark Mountain 2409 Comment
  RSA47534  Lupinus brevicaulis J. C. Roos, L. Roos 1949-5-28 4344 San Bernardino Colisseum Mine, North side Clark Mountains. 1616 Comment
  RSA47537  Forsellesia nevadensis J. C. Roos, L. Roos 1979-06 4402 San Bernardino SE foot of Clark Mtn, Eastern San Bernardino County 1951 Comment
  RSA47540  Amelanchier utahensis subsp. covillei J. C. Roos 1949-5-28 4349 San Bernardino North slope of Clark Mountains 1890 Comment
  RSA47541  Gayophytum diffusum subsp. parviflorum J. C. Roos 1949-7-16 4559 San Bernardino Moonridge, Bear Valley 2226 Comment
  RSA47563  Arenaria congesta var. charlestonensis J. C. Roos 1949-6-21 3557 San Bernardino New York Mountain (New York Peak) 2225 Comment
  RSA480587  Croton californicus A. R. Roos 1922-11-8 s.n. San Bernardino Near Loma Linda 915 Comment
  RSA48680  Eriogonum microtheca var. foliosum J. C. Roos 1949-8-13 4613 San Bernardino Keystone Canyon, New York Mountains 1738 Comment
  RSA48685  Penstemon rostriflorus J. C. Roos 1949-8-13 4608 San Bernardino Copper Queen Mine, Keystone Canyon, New York Mtns. 1829 Comment
  RSA48842  Rhus integrifolia L. Roos 1949-10-22 4693 San Bernardino Santa Ana wash north of Redlands, about 300 yds. northeast of Orange St. Bridge. 396 Comment
  RSA48844  Sporobolus cryptandrus J. C. Roos 1949-8-13 4619 San Bernardino Live Oak Mine, Keystone Canyon, New York Mountains 1829 Comment
  RSA48865  Muhlenbergia californica J. C. Roos 1949-9-24 4666 San Bernardino Upper Mill Creek at Marble Quarry Comment
  RSA48886  Eriogonum umbellatum var. juniporinum J. C. Roos 1949-9-2 4637 San Bernardino N slope of the Kingston Mtns. 2012 Comment
  RSA48888  Juniperus osteosperma J. C. Roos 1949-9-2 4634 San Bernardino North slopes Kingston Mts 2072 Comment
  RSA52769  Achnatherum aridum J. C. Roos, A. R. Roos 1950-8-5 4894 San Bernardino Clark Mountains; 1.5 mile southwest of colusuem Mine 1738 Comment
  RSA52807  Atriplex truncata J. C. Roos 1950-6-3 4823 San Bernardino Rabbit Springs. Mojave desert. 884 Comment
  RSA591750  Silene parishii J. C. Roos 1966-8-6 s.n. San Bernardino Fish Creek, On rocky slopes with Pinus Jeffreyi and Abies concolor Comment
  RSA591761  Draba corrugata J. C. Roos 1965-7-17 17 San Bernardino South Fork, San Bernardino Mts. 2591 Comment
  RSA593757  Juglans californica var. californica J. C. Roos 1966-4-3 s.n. San Bernardino Flats near Palm Ave and Kendall Drive, NW of San Bernardino Comment
  RSA61546  Poa secunda J. C. Roos 1950-4-26 4764 San Bernardino Rabbit Springs. 884 Comment
  RSA658433  Poa secunda J. C. Roos 1967-5-30 s.n. San Bernardino Rocky ridge, on the E end of Broom Flat, N of Onyx Peak. San Bernardino Mtns. Comment
  RSA658695  Dithyrea californica J. C. Roos 1965-6-12 s.n. San Bernardino 4 miles north of Adelanto, Mojave Desert. Comment
  RSA659185  Dodecahema leptoceras J. C. Roos 1950-6-3 4822 San Bernardino Cajon Canyon, 1 mile below 'Blue Cut' 762 Comment
  RSA659465  Phlox viridis J. C. Roos 1949-6-27 s.n. San Bernardino North slope of Kingston Mts. 2043 Comment
  RSA659474  Camissonia dentata J. C. Roos 1952-4-22 5568 San Bernardino 1 mile west of Colton along highway 99. 305 Comment
Read comments
Dec 18 2018
  RSA659492  Euphorbia maculata J. C. Roos, L. Roos 1951-7-28 s.n. San Bernardino Hwy 99, near Alabama St. west of Redlands, San Bernardino Valley. 366 Comment
  RSA659784  Lotus argyraeus var. multicaulis J. C. Roos 1949-6-21 3556 San Bernardino New York Mountain (New York Peak) 2225 Comment
  RSA662062  Cryptantha micrantha var. lepida J. C. Roos 1965-7-18 s.n. San Bernardino Along Bear Valley, San Bernardino Mtns. Comment
  RSA662430  Achnatherum hymenoides J. C. Roos 1965-6-7 s.n. San Bernardino Victorville. Comment
  RSA662433  Poa pratensis J. C. Roos 1965-7-18 s.n. San Bernardino Moonridge, Bear Valley, San Bernardino Mountains. Comment
  RSA662534  Aster carnosus J. C. Roos 1956-8-2 6591 San Bernardino San Bernardino Valley [Loma Linda] north side of Hwy 99, 0.2 miles west of Waterman Ave. Comment
  RSA662542  Achnatherum lemmonii var. lemmonii J. C. Roos, L. Roos 1950-6-24 4842 San Bernardino Moon Ridge, Bear Valley, San Bernardino Mtns. 2226 Comment
  RSA664195  Buddleja utahensis J. C. Roos 1949-6-26 4497 San Bernardino Face of steep pass 5.5 miles S of Kingston. 1067 Comment
  RSA78234  Eriogonum heermannii var. heermannii J. C. Roos 1951-7-30 5078 San Bernardino Sheep Creek, NE of Wrightwood. 1585 Comment
  RSA78328  Plagiobothrys torreyi J. C. Roos 1951-6-9 5062 San Bernardino Running Springs 1829 Comment
  RSA78382  Chrysothamnus viscidiflorus subsp. viscidiflorus J. C. Roos 1951-7-28 5070 San Bernardino Head of Rathbone Creek. 2591 Comment
  RSA78384  Chamaesyce nutans J. C. Roos 1951-7-28 5065 San Bernardino Hwy 99, near Alabama St. west of Redlands, San Bernardino Valley. 366 Comment
  RSA85277  Sporobolus cryptandrus J. C. Roos 1950-8-12 4932 San Bernardino Mill Creek near jct of Vivian Creek 1829 Comment
  RSA85279  Atriplex torreyi J. C. Roos, A. Roos 1950-8-8 4930 San Bernardino 1 mile N. of Oro Grande. 793 Comment
  RSA85452  Spergularia salina J. C. Roos 1952-3-14 5538 San Bernardino Loma Linda 305 Comment
  RSA85664  Datura wrightii J. C. Roos, A. R. Roos 1950-8-6 4912 San Bernardino Ridge NE of Kingston Peak, Kingston Mountains, eastern Mohave Desert. 2134 Comment
  RSA86874  Frasera albomarginata J. C. Roos 1950-9-2 4967 San Bernardino Clark Mountains, 1 mile south of coliseum Mine 1707 Comment
Read comments
Sep 5 2013
  RSA86879  Bouteloua aristidoides J. C. Roos 1950-9-1 4959 San Bernardino Vicinity of Coliseum Mine, Clark Mountains 1646 Comment
  RSA89890  Cordylanthus tecopensis J. C. Roos 1954-7-18 6203 San Bernardino Saratoga Springs, Mojave desert. 61 Comment
  RSA89972  Chrysothamnus nauseosus subsp. hololeucus J. C. Roos 1950-10-11 5000 San Bernardino Cajon Pass at Cajon 915 Comment
  RSA89974  Chrysothamnus nauseosus subsp. consimilis J. C. Roos 1950-10-11 5001 San Bernardino Cajon Pass at Cajon 915 Comment
  RSA89977  Hydrocotyle umbellata J. C. Roos 1950-9-22 4990 San Bernardino Edge of pond, Loma Linda, San Bernardino Valley. 335 Comment
  RSA89983  Sporobolus contractus J. C. Roos 1950-9-3 4982 San Bernardino Mountain Pass, Clark Mountains, E Mojave Desert 1524 Comment
  RSA89987  Brickellia microphylla J. C. Roos 1950-9-3 4974 San Bernardino South of Clark Mountains, NW of Mountain Pass 1828 Comment
  SBBG53853  Lepidium didymum J. C. Roos 1953-4-16 5913 San Bernardino Loma Linda, San Bernardino Valley 320 Comment
  SD53019  Cirsium vulgare J. C. Roos 1955-8-8 6525 San Bernardino Loma Linda 320 Comment
  SEINET3885349  Calochortus concolor John Roos, Lucille Roos 1952-6-14 5772 San Bernardino Mill Creek south of Mill Creek Public Camp, San Bernardino Mts.; 0 1158 Comment
  SEINET810126  Cuscuta indecora J. C. Roos 1946-1 3109 San Bernardino The Pipes, E. side of the San Bernardino Mountains, N. of Yucca Valley 1356 Comment
  UC1010235  Eriogonum thurberi John C. Roos 1951-6-16 5063 San Bernardino Loma Linda San Bernardino Valley, Loma Linda 304 Comment
  UC1010268  Ericameria nauseosa var. hololeuca John C. Roos 1950-9-3 4972 San Bernardino nw of Mountain Pass (canyon on s slope of Clark Mtn., e Mohave Desert); Mohave Desert, Clark Mtn. 1889 Comment
  UC1010281  Boerhavia wrightii J. C. and A. R. Roos 1950-8-4 4892 San Bernardino n. slopes Clark Mt.; e. Mohave Desert, Clark Mt. 1219 Comment
  UC1010284  Kallstroemia parviflora J. C. and A. R. Roos 1950-8-5 4904 San Bernardino Coliseum Mine eastern Mohave Desert, Clark Mts., Coliseum Mine (Clark Mts., eastern Mohave Desert) Comment
  UC1010288  Abies concolor J. C. and A. R. Roos 1950-8-6 4911 San Bernardino Kingston Peak, e Mohave Desert Mohave Desert, Kingston Mts., Kingston Peak 2194 Comment
  UC1023420  Eriochloa acuminata var. acuminata John C. Roos 1950-8-22 4945 San Bernardino San Bernardino Valley, Highland Highland; San Bernardino Valley, Highland 457 Comment
  UC1023430  Sporobolus contractus John C. Roos 1950-9-3 4982 San Bernardino Clark Mts., Mountain Pass e. Mohave Desert, Clark Mts., Mountain Pass 1524 Comment
  UC1023433  Hydrocotyle umbellata John C. Roos 1950-9-22 4990 San Bernardino Loma Linda San Bernardino Valley, Loma Linda 335 Comment
  UC1043022  Linanthus aureus subsp. aureus John and Lucille Roos 1952-5-17 5673 San Bernardino Adelanto Mohave Desert 944 Comment
  UC1234680  Horkelia wilderae J. C. Roos 1955-8-20 6505 San Bernardino Barton Flats near Barton Creek; San Bernardino Mountains, Barton Flats near Barton Creek 1889 Comment
  UC1494262  Celtis reticulata J. C. Roos 1962-5-7 San Bernardino 9.3 mi w of corner of Bryant St. and Oak Glen Road (Yucaipa); Yucaipa 822 Comment
  UC809590  Tetradymia argyraea J. C. Roos and R. Weatherby 1949-9-2 3573 San Bernardino ne of Kingston Pk.; Kingston Mts. 2133 Comment
  UC809591  Tetradymia argyraea J. C. Roos and R. Weatherby 1949-9-2 3574 San Bernardino n side Kingston Mts. (ne San Bernardino County); ; N side of Kingston Mts., NE San Bernardino Co. 1920 Comment
  UCR18567  Petradoria pumila John C. Roos 1948-9-18 s.n. San Bernardino Eastern Mojave Desert, north slope of Clark Mountain 1829 Comment
  UCR18569  Allium praecox John C. Roos 1950-3-27 4718 San Bernardino San Bernardino Valley, steep north slope of Slover Mtn. 351 Comment
  UCR18633  Artemisia bigelovii John C. Roos 1948-9-19 s.n. San Bernardino Eastern Mojave Desert, Clark Mountain 1523 Comment
  UCR18658  Triteleia laxa John C. Roos, L. Roos 1952-4-13 5516 San Bernardino San Bernardino Valley, Hills south of Loma Linda 381 Comment
  UCR18664  Lessingia glandulifera var. glandulifera John C. Roos 1952-8-7 5885 San Bernardino San Bernardino Valley, Sand hills 1 mi. west of Colton, Colton Dunes 305 Comment
  UCR18667  Dyssodia pentachaeta var. belenidium John C. Roos 1948-9-19 4032 San Bernardino Eastern Mojave Desert, N side of Clark Mountain along the powerline road 1067 Comment
  UCR18748  Senecio multilobatus John C. Roos 1949-5-28 4350 San Bernardino Eastern Mojave Desert, Clark Mountain [north side] 1890 Comment
  UCR18784  Cheilanthes feei John C. Roos 1949-6-19 4400 San Bernardino Eastern Mojave Desert, Clark Mountain 1890 Comment
  UCR18787  Polystichum scopulinum John C. Roos 1949-7-2 4531 San Bernardino San Bernardino Mountains, Snow Canyon [Rattlesnake Creek], Mill Creek 2104 Comment
  UCR18848  Geranium carolinianum John C. Roos 1957-6-6 2010 San Bernardino San Bernardino Valley, swamp along the Santa Ana River south of San Bernardino 305 Comment
  UCR18850  Garrya flavescens John C. Roos 1950-2-17 s.n. San Bernardino San Bernardino Mtns., Oak Glen Road, Yucaipa Comment
  UCR18873  Prunella vulgaris John C. Roos 1965-7-31 s.n. San Bernardino San Bernardino Mtns, South Fork of the Santa Ana River in the San Gorgonio Wilderness Area 2439 Comment
  UCR18874  Mentzelia dispersa John C. Roos 1947-6-14 3676 San Bernardino San Bernardino Mtns, Crestline 1585 Comment
  UCR18887  Atriplex canescens John C. Roos 1965-7-21 s.n. San Bernardino Mojave Desert, Victorville Comment
  UCR18889  Atriplex confertifolia John C. Roos 1965-7-6 s.n. San Bernardino Mojave Desert, Victorville cement plant Comment
  UCR18904  Cryptantha simulans John C. Roos 1947-6-14 3683 San Bernardino San Bernardino Mtns, Crestline 1585 Comment
  UCR18909  Clematis lasiantha John C. Roos 1947-4-12 3437 San Bernardino San Bernardino Mtns., Mill Creek 915 Comment
  UCR18925  Horkelia wilderae John C. Roos 1941-5-31 s.n. San Bernardino San Bernardino Mtns, Fish Creek 2134 Comment
  UCR18963  Spergularia marina John C. Roos 1947-5-10 3623 San Bernardino San Bernardino Valley, Loma Linda 396 Comment
  UCR18995  Psorothamnus arborescens var. arborescens John C. Roos 1947-4-18 3444 San Bernardino Central Mojave Desert, hills 3 mi. west of Barstow Comment
  UCR19073  Penstemon labrosus John C. Roos 1965-7-17 s.n. San Bernardino San Bernardino Mtns., Barton Flats Comment
  UCR19074  Castilleja tenuis John C. Roos 1940-7-16 1848 San Bernardino San Bernardino Mtns., Green Valley Comment
  UCR19079  Mimulus primuloides John C. Roos 1949-7-23 4569 San Bernardino San Bernardino Mtns., Hanna Flats, 3 miles northwest of Fawnskin 2134 Comment
  UCR19127  Nepeta cataria John C. Roos 1946-8-31 2989 San Bernardino San Bernardino Mtns., Oak Glen, irrigation ditch behind Oak Glen School 1433 Comment
  UCR19129  Mentha spicata John C. Roos 1965-9-13 s.n. San Bernardino Mojave Desert, Victorville, Mojave River bottom 762 Comment
  UCR19131  Agastache urticifolia John C. Roos 1946-8-31 2990 San Bernardino San Bernardino Mtns., Oak Glen, irrigation ditch behind Oak Glen School 1433 Comment
  UCR19144  Gilia ochroleuca John C. Roos, L. Roos 1952-5-17 5676 San Bernardino Mojave Desert, 8 mi. west of Adelanto 945 Comment
  UCR19147  Gilia capitata John C. Roos, L. Roos 1953-6-18 5923 San Bernardino San Bernardino Mtns., near Baylis Park, Crestline 1524 Comment
  UCR19149  Ipomopsis polycladon John C. Roos, L. Roos 1952-5-10 5638 San Bernardino Western Mojave Desert, 4 mi. northwest of Adelanto, near Red Raven Mine 823 Comment
  UCR19178  Forestiera pubescens John C. Roos 1949-6-23 4470 San Bernardino Eastern Mojave Desert, Rock Spring, Mid Hills 1463 Comment
  UCR19197  Langloisia punctata John C. Roos 1949-5-28 4355 San Bernardino Eastern Mojave Desert, wash near Green's Mine, north side Clark Mountain 1646 Comment
  UCR19202  Dodecatheon alpinum John C. Roos 1965-7-31 s.n. San Bernardino San Bernardino Mtns, South Fork of the Santa Ana River in the San Gorgonio Wilderness Area 2439 Comment
  UCR19209  Plantago patagonica John C. Roos 1949-5-28 4347 San Bernardino Eastern Mojave Desert, Clark Mountain, slopes near Green's Mine 1616 Comment
  UCR19215  Pinus contorta var. murrayana John C. Roos 1965-7-17 s.n. San Bernardino San Bernardino Mountains, San Gorgonio Wilderness Area near Dry Lake 2774 Comment
  UCR19234  Caucalis microcarpa John C. Roos 1937-4-26 815 San Bernardino Eastern Mojave Desert, Providence Mtns. Comment
  UCR19245  Phoradendron macrophyllum John C. Roos 1965-12-11 s.n. San Bernardino San Bernardino Mtns, Mill Creek 1098 Comment
  UCR19262  Eriogonum nidularium John C. Roos 1965-6-16 s.n. San Bernardino Western Mojave Desert, four miles north of Adelanto 854 Comment
  UCR19263  Eriogonum plumatella John C. Roos 1965-7-21 s.n. San Bernardino Mojave Desert, Victorville Comment
  UCR19290  Stipa comata John C. Roos 1949-6-19 4396 San Bernardino Eastern Mojave Desert, SE base of Clark Mountain 1829 Comment
  UCR19295  Stipa lettermanii John C. Roos 1965-7-17 s.n. San Bernardino San Bernardino Mtns, Stetson Creek, Barton Flats 1951 Comment
  UCR19355  Sporobolus cryptandrus John C. Roos 1949-7-27 4567 San Bernardino San Bernardino Valley, Loma Linda, residential lawn on Stewart Street 323 Comment
  UCR19492  Bidens frondosa John C. Roos 1965-9-13 s.n. San Bernardino Mojave Desert, Victorville, Mojave River bottom 762 Comment
  UCR19497  Xanthium strumarium John C. Roos 1965-9-13 s.n. San Bernardino Mojave Desert, Victorville, Mojave River bottom 762 Comment
  UCR19516  Holodiscus microphyllus John C. Roos, L. Roos 1949-6-27 4518 San Bernardino Eastern Mojave Desert, north side of Kingston Mtns 2134 Comment
  UCR19518  Artemisia californica John C. Roos 1966-1-2 s.n. San Bernardino San Bernardino Valley, Foothills of Loma Linda 366 Comment
  UCR19551  Datura stramonium var. tatula John C. Roos 1949-8-20 4622 San Bernardino San Bernardino Valley, Waterman Avenue near Santa Ana River Bridge 305 Comment
  UCR19677  Bouteloua curtipendula John C. Roos 1949-5-28 4364 San Bernardino Eastern Mojave Desert, Clark Mountain 1646 Comment
  UCR19687  Elymus stebbinsii John C. Roos 1957-6-1 6612 San Bernardino San Bernardino Mtns., Yucaipa Ridge, 0.5 mi south of Mill Creek Public Camp, Mill Creek Comment
  UCR19702  Dyssodia papposa John C. Roos 1952-1 5056 B San Bernardino San Bernardino Valley, Loma Linda, corner of Central & Anderson. 335 Comment
  UCR19704  Tetradymia argyraea John C. Roos 1950-9-2 4965 San Bernardino Eastern Mojave Desert, 1 mi SE of Coloseum Mine, Clark Mountain 1616 Comment
  UCR19709  Trianthema portulacastrum John C. Roos 1954-11-21 6256 San Bernardino San Bernardino Valley, Loma Linda 336 Comment
  UCR19725  Lepidium chalepense John C. Roos, Lucille Roos 1952-4-19 5914 San Bernardino San Bernardino Valley, Barton Road at Loma Linda 335 Comment
  UCR19737  Calochortus invenustus John C. Roos 1953-7-4 5926 San Bernardino San Bernardino Mtns., Barton Flats near store 1921 Comment
  UCR20383  Forestiera pubescens John C. Roos 1947-6-21 3702 San Bernardino Mojave Desert, Lucerne Valley, Rabbit Springs 884 Comment
  UCR20461  Muhlenbergia porteri John C. Roos, A. R. Roos 1950-8-5 4907 San Bernardino Eastern Mojave Desert, east end of the Kingston Mountains 1067 Comment
  UCR20465  Sporobolus cryptandrus John C. Roos 1950-8-12 4932 San Bernardino San Bernardino Mtns., Mill Creek near junction of Vivian Creek 1829 Comment
  UCR20583  Eragrostis minor John C. Roos, A. R. Roos 1950-8-7 4921 San Bernardino Northeastern Mojave Desert, Beck Spring, Kingston Mountains 1372 Comment
  UCR23243  Salix lasiolepis John C. Roos 1949-8-14 4617 San Bernardino Eastern Mojave Desert, Keystone Canyon, New York Mtns. 1707 Comment
  UCR23278  Nicolletia occidentalis John C. Roos, L. Roos 1950-10-21 5017 San Bernardino Mojave Desert, Joshua Tree [city], N base of Little San Bernardino Mtns. 915 Comment
  UCR23338  Pellaea truncata John C. Roos 1937-4-26 813 San Bernardino Eastern Mojave Desert, Providence Mtns, SE of Kelso Comment
  UCR23353  Asplenium vespertinum John C. Roos 1942-3-28 1087 San Bernardino San Bernardino Valley, Canyon above plateau, Reche Canyon, near Loma Linda Comment
  UCR23403  Hydrocotyle umbellata John C. Roos 1949-8-20 4625 San Bernardino San Bernardino Mtns/Mojave desert, West Fork Mojave River near junction with Deep Creek 1000 Comment
  UCR23411  Apocynum X floribundum John C. Roos 1946-9-21 3052 San Bernardino San Bernardino Mtns, Bear Valley, near Grout Bay 2043 Comment
  UCR23437  Rorippa sphaerocarpa John C. Roos 1946-9-15 3033 San Bernardino San Bernardino Mountains, Dry Lake 2759 Comment
  UCR23439  Lesquerella kingii John C. Roos 1949-6-21 4425 San Bernardino Eastern Mojave Desert, New York Mtns, Keystone Canyon 1829 Comment
  UCR23440  Lepidium virginicum John C. Roos 1950-6-24 4838 San Bernardino San Bernardino Mtns, Moonridge, Bear Valley 2226 Comment
  UCR23441  Lepidium montanum John C. Roos 1949-6-22 4438 San Bernardino Eastern Mojave Desert, New York Mtns., at and near Lecyr Well 1524 Comment
  UCR23456  Ranunculus cymbalaria var. saximontanus John C. Roos 1946-8-29 2771 San Bernardino San Bernardino Mtns., Bear Valley, at the edge of the lake [Big Bear Lk.] 2058 Comment
  UCR23508  Prunus virginiana var. demissa John C. Roos, L. Roos 1956-5-26 6581 San Bernardino San Bernardino Mtns., Oak Glen school 1433 Comment
  UCR23536  Mirabilis coccinea John C. Roos 1949-6-20 3546 San Bernardino Eastern Mojave Desert, Ivanpah Mountains, near Kokoweef Peak 1524 Comment
  UCR23553  Arabis parishii John C. Roos 1967-5-30 s.n. San Bernardino San Bernardino Mtns, east of Broom Flat 2424 Comment
  UCR23557  Sphaeralcea ambigua John C. Roos 1965-6-16 s.n. San Bernardino Western Mojave Desert, four miles north of Adelanto 854 Comment
  UCR23559  Sidalcea malviflora subsp. dolosa John C. Roos 1965-7-18 s.n. San Bernardino San Bernardino Mtns, Moonridge, Bear Valley 2226 Comment
  UCR23581  Tiquilia canescens John C. Roos 1949-5-29 3534 San Bernardino Eastern Mojave Desert, north base of Clark Mountain 1345 Comment
  UCR23585  Cryptantha micrantha var. lepida John C. Roos 1947-6-21 3705 San Bernardino San Bernardino Mtns, Running Springs 1838 Comment
  UCR23653  Silene menziesii John C. Roos 1958-7-26 s.n. San Bernardino San Bernardino Mtns, South Fork of the Santa Ana River Comment
  UCR23671  Gentianopsis simplex John C. Roos 1966-8-6 s.n. San Bernardino San Bernardino Mtns., Fish Creek Meadows 2439 Comment
  UCR23680  Cleomella plocasperma John C. Roos 1946-9-21 3036 San Bernardino S. Mojave Desert, Rabbit Springs, Lucerne Valley 884 Comment
  UCR23681  Cleomella obtusifolia John C. Roos 1946-9-21 3065 San Bernardino Mojave Desert, Rabbit Springs, Lucerne Valley 887 Comment
  UCR23700  Frankenia salina John C. Roos 1950-6-24 4843 San Bernardino Mojave Desert, Rabbit Springs 884 Comment
  UCR23792  Eriophyllum confertiflorum John C. Roos 1965-6-26 s.n. San Bernardino San Bernardino Mtns, Upper Santa Ana River Basin, near Fish Creek 2134 Comment
  UCR23793  Eriophyllum lanatum var. obovatum John C. Roos 1965-7-18 s.n. San Bernardino San Bernardino Mtns, Running Springs 1838 Comment
  UCR23800  Gutierrezia sarothrae John C. Roos 1966-8-6 s.n. San Bernardino San Bernardino Mtns., Upper Fish Creek at Fish Creek Meadows. 2439 Comment
  UCR23817  Helenium puberulum John C. Roos 1940-6-23 1894 San Bernardino San Bernardino Valley, Rattlesnake Mountain above Reche Canyon near Loma Linda. Comment
  UCR23823  Gutierrezia microcephala John C. Roos 1937-8-25 1191 San Bernardino Eastern Mojave Desert, 3 miles west of Windmill Station 1159 Comment
  UCR23827  Gutierrezia microcephala John C. Roos 1946-9-21 3045 San Bernardino Mojave Desert, Rabbit Springs, Lucerne Valley 887 Comment
  UCR23861  Quercus chrysolepis John C. Roos 1965-10-2 s.n. San Bernardino San Bernardino Mtns, Barton Flats, near Camp Angelus Comment
  UCR23876  Bromus tectorum John C. Roos 1950-4-17 4745 San Bernardino San Bernardino Valley, Loma Linda 335 Comment
  UCR23878  Aristida purpurea var. fendleriana John C. Roos 1949-6-22 4443 San Bernardino Eastern Mojave Desert, New York Mtns, Barnwell 1494 Comment
  UCR23892  Danthonia californica var. americana John C. Roos 1947-6-21 3709 San Bernardino San Bernardino Mtns, Running Springs 1838 Comment
  UCR23893  Bromus arenarius John C. Roos 1949-6-22 3547 San Bernardino Eastern Mojave Desert, Keystone Canyon, New York Mtns. 1829 Comment
  UCR23936  Festuca californica var. parishii John C. Roos 1943-4-21 2633 San Bernardino San Bernardino Mtns, Waterman Canyon 854 Comment
  UCR24006  Imperata brevifolia John C. Roos 1938-11-5 s.n. San Bernardino San Bernardino Mtns., Arrowhead Hot Springs, south side of the mountains Comment
  UCR24052  Poa pratensis John C. Roos 1950-6-24 4846 San Bernardino San Bernardino Mtns., Boulder Bay, Bear Valley 2073 Comment
  UCR24070  Eriochloa acuminata John C. Roos 1957-6-20 6614 San Bernardino San Bernardino Valley, Loma Linda 305 Comment
Read comments
May 21 2011
  UCR24071  Hilaria jamesii John C. Roos 1949-5-29 3538 San Bernardino Eastern Mojave Desert, vicinity of the Coloseum Mine, Clark Mountain 1677 Comment
  UCR24085  Oryzopsis micrantha John C. Roos 1949-6-24 3543 San Bernardino Eastern Mojave Desert, N slope of Clark Mountain 2134 Comment
  UCR24120  Atriplex argentea subsp. expansa John C. Roos 1946-9-21 3061 San Bernardino Southern Mojave Desert, Lucerne Valley 915 Comment
  UCR24132  Madia gracilis John C. Roos 1950-6-24 4833 San Bernardino San Bernardino Mtns., [Dry] Creek drainage near Running Springs 1677 Comment
  UCR24137  Madia glomerata John C. Roos 1937-6-26 1937 San Bernardino San Bernardino Mtns., Pine Knot, Bear Valley [vicinity of Pine Knot Blvd., city of Big Bear Lake] 2073 Comment
  UCR24190  Malaxis brachypoda John C. Roos 1937-7-22 329 San Bernardino San Bernardino Mtns., South Fork Meadows, upper Santa Ana River, San Gorgonio Wilderness Area. 2439 Comment
  UCR24191  Corallorhiza maculata John C. Roos 1947-6-27 3720 San Bernardino San Bernardino Mountains, South Fork of Santa Ana River 2439 Comment
  UCR24201  Luzula subsessilis John C. Roos 1940-7-19 1877 San Bernardino San Bernardino Mtns., Green Valley Comment
  UCR24222  Calyptridium parryi var. parryi John C. Roos 1946-9-15 3035 San Bernardino San Bernardino Mtns., summit of Mt. San Gorgonio 3491 Comment
  UCR24223  Lewisia rediviva var. minor John C. Roos 1967-6-30 s.n. San Bernardino San Bernardino Mtns, east edge of Broom Flat 2409 Comment
  UCR24276  Polygonum amphibium John C. Roos 1966-9-10 s.n. San Bernardino San Bernardino Mtns, Big Bear Lake 2073 Comment
  UCR24278  Polygonum douglasii John C. Roos 1940-7-16 s.n. San Bernardino San Bernardino Mtns., Green Valley Comment
  UCR24353  Sporobolus airoides John C. Roos 1946-9-21 3077 San Bernardino N slope San Bernardino Mtns/S Mojave Desert, Box 'S' Springs 1082 Comment
  UCR24359  Ambrosia psilostachya John C. Roos 1938-8-19 2750 San Bernardino San Bernardino Valley, Loma Linda 305 Comment
  UCR24381  Populus trichocarpa var. ingrata John C. Roos 1940-8-10 1551 San Bernardino San Bernardino Mtns., upper Santa Ana River, Big Meadows 2088 Comment
  UCR24385  Populus tremuloides John C. Roos 1946-9-28 3094 San Bernardino San Bernardino Mtns., Near Fish Creek 2241 Comment
  UCR24403  Aster frondosus John C. Roos 1946-8-29 2780 San Bernardino San Bernardino Mtns., Bear Valley, at the edge of the lake [Big Bear Lk.] 2058 Comment
  UCR24407  Arida carnosa John C. Roos 1946-9-21 3064 San Bernardino Mojave Desert, Rabbit Springs, Lucerne Valley 887 Comment
  UCR24420  Ribes velutinum John C. Roos 1949-6-21 4432 San Bernardino Eastern Mojave Desert, New York Peak, New York Mountains 2134 Comment
  UCR24437  Quercus kelloggii John C. Roos 1965-10-2 s.n. San Bernardino San Bernardino Mtns, Barton Flats, near Camp Angelus Comment
  UCR24440  Heuchera rubescens John C. Roos 1965-7-31 s.n. San Bernardino San Bernardino Mtns, South Fork Meadows on the upper Santa Ana River in the San Gorgonio Wilderness Area 2622 Comment
  UCR24445  Viola macloskeyi John C. Roos 1962-6-2 s.n. San Bernardino San Bernardino Mtns, South Fork Santa Ana River 2317 Comment
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Oct 22 2014
  UCR24462  Urtica dioica subsp. holosericea John C. Roos 1937-8-4 1203 San Bernardino Mojave Desert, Victorville Comment
  UCR25152  Eriogonum thurberi John C. Roos 1951-6-16 5063 San Bernardino San Bernardino Valley, Loma Linda 305 Comment
  UCR25185  Nemophila pedunculata John C. Roos, L. Roos 1951-6-9 5057 San Bernardino San Bernardino Mtns., Running Springs 1829 Comment
  UCR25287  Gilia leptomeria John C. Roos 1949-5-28 3541 San Bernardino Eastern Mojave Desert, below Coloseum Mine, north slope Clark Mountain 1616 Comment
  UCR25356  Stipa lettermanii John C. Roos, L. Roos 1952-8-23 5886 San Bernardino San Bernardino Mtns, Stetson Creek, Barton Flats 1890 Comment
  UCR25358  Platystemon californicus John C. Roos 1952-5-10 5647 San Bernardino Mojave Desert, Adelanto 915 Comment
  UCR25390  Plantago ovata John C. Roos 1937-4-27 790 San Bernardino Sonoran (Colorado) Desert, 10 miles south of Needles Comment
  UCR25395  Coleogyne ramosissima John C. Roos 1937-4-23 784 San Bernardino Mojave Desert, 20 mi. west of Twentynine Palms (near Yucca Valley) 915 Comment
  UCR25408  Langloisia schottii John C. Roos 1949-4-30 4252 San Bernardino Southern Mojave Desert, 5 mi west of Lucerne Valley 915 Comment
  UCR25459  Deschampsia danthonioides John C. Roos 1967-5-29 s.n. San Bernardino San Bernardino Mtns., Summit Valley 976 Comment
  UCR25615  Quercus berberidifolia John C. Roos 1940-9-14 230 a San Bernardino San Bernardino Valley, Blakes Canyon, south of Bryn Mawr 549 Comment
  UCR25755  Mentha canadensis John C. Roos 1937-7-31 965 San Bernardino San Bernardino Valley, San Bernardino 305 Comment
  UCR25773  Apocynum cannabinum John C. Roos 1937-7-27 963 San Bernardino San Bernardino Mtns, Baldwin Lake Comment
  UCR25907  Lupinus microcarpus var. densiflorus John C. Roos 1941-4-19 164 San Bernardino San Bernardino Valley, mouth of Reche Canyon, Hollow Hill Dairy 1200 Comment
  UCR25909  Lotus argyraeus var. multicaulis John C. Roos 1949-6-21 3556 San Bernardino Eastern Mojave Desert, New York Mountains, near New York peak 2226 Comment
  UCR25921  Lotus purshianus John C. Roos 1950-6-3 4824 San Bernardino Southern Mojave Desert, Rabbit Springs, Lucerne Valley 884 Comment
  UCR25925  Eremogone kingii var. glabrescens John C. Roos 1949-6-27 4510 San Bernardino Eastern Mojave Desert, Kingston Mountains 2134 Comment
  UCR25933  Sedum niveum John C. Roos 1949-7-2 4533 San Bernardino San Bernardino Mtns, Snow Canyon [= Rattlesnake Creek, off Mill Creek Cyn. above Forest Falls] 2195 Comment
  UCR25945  Draba corrugata John C. Roos 1946-9-4 2955 San Bernardino San Bernardino Mtns., San Gorgonio Peak 3500 Comment
  UCR25964  Cryptantha gracilis John C. Roos 1949-6-24 3559 San Bernardino Eastern Mojave Desert, summit of Clark Mountain 2409 Comment
  UCR25967  Cryptantha muricata John C. Roos 1948-6-13 3879 San Bernardino San Gabriel Mtns., Lytle Creek, along roadside 1220 Comment
  UCR26091  Machaeranthera canescens John C. Roos 1946-10-5 3119 San Bernardino San Bernardino Mtns., Pipes Creek, [upper] Pipes Canyon 2134 Comment
  UCR26166  Phlox gracilis John C. Roos 1937-7-26 646 San Bernardino San Bernardino Mtns., Big Bear Valley, near Pine Knot [vicinity of Pine Knot Blvd., city of Big Bear Lake] 2073 Comment
  UCR26168  Camissonia campestris John C. Roos 1952-4-22 5568 San Bernardino San Bernardino Valley, 1 mi west of Colton along Hwy 99 305 Comment
  UCR26216  Ranunculus eschscholtzii John C. Roos 1941-7-5 110 San Bernardino San Bernardino Mtns., slopes SE of Dollar Lake, San Gorgonio Mtn 2896 Comment
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Mar 16 2012
  UCR26248  Gentianopsis simplex John C. Roos 1937-7-21 1996 San Bernardino San Bernardino Mtns, South Fork of Santa Ana River 1921 Comment
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Oct 26 2013
  UCR26296  Petalonyx nitidus John C. Roos 1949-7-28 4523 San Bernardino Eastern Mojave Desert, Kingston Mtns, 0.2 mi below Beck's Spring 1341 Comment
  UCR26298  Plantago patagonica John C. Roos 1949-6-23 4468 San Bernardino Eastern Mojave Desert, Rock Spring, Mid Hills 1463 Comment
  UCR26307  Cyperus parishii John C. Roos 1937-7-14 622 San Bernardino San Bernardino Valley, Near San Bernardino Comment
  UCR26333  Elymus cinereus John C. Roos 1949-6-28 4524 San Bernardino Eastern Mojave Desert, Beck Spring, Kingston Mtns 1350 Comment
  UCR27420  Plagiobothrys parishii John C. Roos 1949-4-30 4270 San Bernardino Mojave Desert, Lucerne Valley, Rabbit Springs 884 Comment
  UCR27433  Mentzelia veatchiana John C. Roos 1949-8-30 4257 San Bernardino Mojave Desert, west of Hesperia 976 Comment
  UCR27434  Artemisia nova John C. Roos 1948-9-18 4069 San Bernardino Eastern Mojave Desert, north slope of Clark Mountain, Green's Mine 1585 Comment
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Mar 8 2012
  UCR30521  Lamarckia aurea John C. Roos 1950-4-26 4759 San Bernardino San Bernardino Valley, Loma Linda hill, Loma Linda 335 Comment
  UCR30539  Trisetum spicatum John C. Roos 1950-7-29 4886 San Bernardino San Bernardino Mtns., Mill Creek, junction with High Creek 2195 Comment
  UCR30541  Stipa lettermanii John C. Roos 1950-7-29 4883 San Bernardino San Bernardino Mtns, Mill Creek at junction with Vivian Creek 1890 Comment
  UCR30563  Erigeron parishii John C. Roos 1947-6-21 3695 San Bernardino San Bernardino Mtns, Bottom of the canyon above Cushenbury Springs 1372 Comment
  UCR30632  Galium parishii John C. Roos 1946-9-4 2953 San Bernardino San Bernardino Mtns., San Gorgonio Ridge 3445 Comment
  UCR31659  Poa secunda John C. Roos 1947-4-26 3594 San Bernardino San Bernardino Mtns, Igo's [Mountain Home Village], Mill Creek 1159 Comment
  UCR31675  Atriplex truncata John C. Roos 1950-8-8 s.n. San Bernardino Southern Mojave Desert, Rabbit Springs, Lucerne Valley 884 Comment
  UCR41278  Euphorbia micromera John C. Roos 1948-9-18 4035 San Bernardino Eastern Mojave Desert, near Coloseum Mine, Clark Mountain 1230 Comment
  UCSB37375  Celtis reticulata Roos, John 1962-8-4 San Bernardino 0.3 miles west of the intersection of Bryant St. and Oak Glen Road, in Wilson Creek Wash; Yucaipa 822 Comment
  UCSB37777  Eriophyllum confertiflorum Roos, John 1965-6-26 San Bernardino Upper Santa Ana Basin, near Fish Creek, San Bernardino Mtns. Comment
  UCSB37783  Achnatherum occidentale subsp. californicum Roos, John 1981-09 San Bernardino Barton Flats, San Bernardino Mtns. Comment
  UCSB37837  Verbena lasiostachys var. lasiostachys Roos, John 1965-9-11 San Bernardino Mill Creek, San Bernardino Mtns Comment
  UCSB37896  Dudleya cymosa Roos, John 1965-6-29 San Bernardino Mill Creek Canyon at Igo's; San Bernardino Mtns. Comment
  UCSB42130  Mimulus cardinalis Roos, John 1965-9-11 San Bernardino Mill Creek; San Bernardino Mtns 598 Comment
  UCSB42133  Persicaria lapathifolia Roos, John 1965-9-15 San Bernardino Mohave River at Victorville. Comment
  UCSB42140  Leptosiphon breviculus Roos, John 1965-6-26 San Bernardino Upper Santa Ana Basin near Fish Creek, San Bernardino Mtns. Comment
  UCSB42155  Thymophylla pentachaeta Roos, John 1950-8-4 San Bernardino N. side of Clark Mtn., E. Mojave Desert Comment
  UCSB42167  Monardella australis subsp. australis Roos, John 1965-7-17 San Bernardino Kilpecker Creek, San Bernardino Mtns. Comment
  UCSB42266  Chenopodium fremontii Roos, John 1966-8-6 San Bernardino Cienega Seca Creek, Heart Bar Ranch, San Bernardino Mtns. Comment
  UCSB42267  Dysphania botrys Roos, John 1965-7-4 San Bernardino Loma Linda Comment
  UCSB45523  Nemacladus rubescens Roos, John; Roos, Lucille 1952-5-10 San Bernardino 4 miles northwest of Adelanto, near Red Raven Mine 822 Comment
  UCSB45530  Triteleia laxa Roos, John; Roos, Lucille 1952-4-13 San Bernardino Hills south of Loma Linda, San Bernardino Valley 381 Comment
  UCSB45555  Poa pratensis Roos, John 1965-7-18 San Bernardino Moonridge in Bear Valley, San Bernardino Mountains Comment
  UCSB45570  Achnatherum hymenoides Roos, John 1965-6-7 San Bernardino Victorville Comment
  UCSB45586  Sporobolus airoides J. C. Roos 1965-6-7 San Bernardino collected in Victorville Victorville Comment
  UCSB45611  Hymenoxys acaulis Roos, John 1948-9-18 San Bernardino Clark Mtn. 1981 Comment
  UCSB45938  Bassia hyssopifolia Roos, John 1965-7-3 San Bernardino Loma Linda Comment
  UCSB45942  Ericameria linearifolia Roos, John 1966-4-1 San Bernardino Cajon Comment
  UCSB45949  Achillea millefolium Roos, John 1965-6-12 San Bernardino Igos, near Mountain Home Village in Mills Canyon, San Bernardino Mtns. Comment
  UCSB45965  Croton californicus Roos, John 1965-6-27 San Bernardino Loma Linda Hills 304 Comment
  UCSB46753  Cryptantha micrantha Roos, John 1965-6-26 San Bernardino Upper Santa Ana Basin near Fish Creek, San Bernardino Mtns. Comment
  UCSB46875  Impatiens balfourii Roos, John 1957-7-13 San Bernardino Mentone; along the Zanja Creek Comment
  UCSB46881  Athyrium filix-femina var. cyclosorum Roos, John 1961-8-6 San Bernardino N. slope of Green Canyon, San Bernardino Mtns. 2499 Comment
  UCSB49868  Stephanomeria cichoriacea Roos, John 1965-10-2 San Bernardino East Fork Mtn. Home Canyon, San Bernardino Mtns. Comment
  UCSB51285  Panicum capillare Roos, John 1965-9-15 San Bernardino Victorville Comment
  CAS-BOT-BC171523  Oenothera californica John Roos; Lucille Roos 1952-5-9 5625 San Bernardino Near Santa Ana River at Colton. 274 Comment
  CLARK-A1528-1314  Clematis ligusticifolia John C. Roos 1946-9-3 2973 San Bernardino Oak Glen Comment
  CLARK-A1528-1472  Apocynum androsaemifolium John C. Roos 1936-9-2 1538 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-1694  Chaenactis carphoclinia John C. Roos 1937-4-23 2453 San Bernardino Twentynine Palms Comment
  CLARK-A1528-2634  Euphorbia serpyllifolia John C. Roos 1946-9-3 2976 San Bernardino Oak Glen Comment
  CLARK-A1528-2831  Lupinus excubitus subsp. austromontanus John C. Roos 1937-5-15 1187 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-2950  Gentiana amarella John C. Roos 1966-8-6 San Bernardino San Bernardino Mountains 2438 Comment
  CLARK-A1528-2991  Myriophyllum exalbescens John C. Roos 1966-9-9 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-3002  Phacelia curvipes John C. Roos 1965-6-26 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-3177  Monardella lanceolata John C. Roos 1940-8-10 1553 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-3184  Asparagus officinalis John C. Roos 1937-7-15 382 San Bernardino Comment
  CLARK-A1528-3194  Calochortus nuttallii var. australis John C. Roos 1953-7-4 5926 San Bernardino San Bernardino Mountains 1920 Comment
  CLARK-A1528-3855  Delphinium cardinale John C. Roos, Lucille Roos 1952-6-15 5775 San Bernardino Colton 320 Comment
  CLARK-A1528-3872  Ranunculus californicus John C. Roos 1943-4-4 2617 San Bernardino San Bernardino Comment
  CLARK-A1528-5141  Chenopodium californicum John C. Roos 1943-4-11 2606 San Bernardino San Bernardino Comment
  CLARK-A1528-5414  Chenopodium pumilio John C. Roos 1952-11-1 5906 San Bernardino San Bernardino Valley 335 Comment
  CLARK-A1528-5680  Lupinus bicolor subsp. microphyllus John C. Roos 1937-3-24 1351 San Bernardino San Bernardino Comment
  POM262886  Phyla nodiflora J. C. Roos 1937-7-13 526 San Bernardino Roadside. Comment
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Oct 12 2013
  POM263055  Solanum physalifolium var. nitidibaccatum J. C. Roos 1937-11-25 493 San Bernardino Patton, in orchard. Comment
  POM263393  Agrostis stolonifera J. C. Roos 1937-7-14 447 San Bernardino Santa Ana River near San Bernardino. Comment
  POM264138  Sphaeralcea ambigua subsp. ambigua J. C. Roos 1937-5-30 653 San Bernardino [Mojave Desert] Comment
  POM264309  Phacelia distans J. C. Roos 1937-4-28 676 San Bernardino Turtle Mountains. Comment
  POM264312  Oenanthe sarmentosa J. C. Roos 1937-6-6 660 San Bernardino San Bernardino. Comment
  POM301540  Physalis philadelphica J. C. Roos 1937-8-24 1199 San Bernardino Near San Bernardino. Comment
  POM302561  Veronica persica J. C. Roos 1943-4-1 2624 San Bernardino County Hospital. Comment
  RSA0001121  Erigeron breweri J. C. Roos, Lucille Roos 1949-6-27 4508 San Bernardino North side of Kingston Mts., eastern Mojave Desert. 1829 Comment
  RSA0010744  Senecio astephanus J. C. Roos, Lucille Roos 1952-6-14 5771 San Bernardino Mill Creek S of Mill Creek Public Camp 1159 Comment
  RSA0013668  Senecio spartioides J. C. Roos 1941-8-27 s.n. San Bernardino Above Dollar Lake, San Bernardino Mts. 3201 Comment
  RSA0022794  Monardella australis subsp. australis J. C. Roos 1937-7-20 1177 San Bernardino Barton Flats, San Bernardino Mts. Comment
  RSA0028755  Epilobium torreyi J. C. Roos 1965-9-15 s.n. San Bernardino Victorville. Comment
  RSA0049513  Populus trichocarpa var. ingrata J. C. Roos 1965-6-26 s.n. San Bernardino Upper Santa Ana Basin near Fish Creek, San Bernardino Mtns. Comment
  RSA0049525  Cercocarpus intricatus J. C. Roos 1950-8-4 s.n. San Bernardino W. side of Clark Mtn., E. Mojave Desert. Comment
  RSA0063070  Heuchera parishii J. C. Roos 1965-7-31 s.n. San Bernardino South Fork, San Bernardino Mountains. 2287 Comment
  RSA0078613  Sedum spathulifolium J. C. Roos 1965-6-28 s.n. San Bernardino Mill Creek canyon, San Bernardino Mtns. At Igo's. Comment
  RSA0105535  Eriastrum densifolium subsp. austromontanum J. C. Roos 1936-8-15 574 San Bernardino 2 miles east of Glen Martin, San Bernardino Mts. Comment
  RSA0119862  Eriastrum diffusum subsp. diffusum J. C. Roos, L. Roos 1949-6-20 4416 San Bernardino On dry desert flats near Cima. 1280 Comment
  RSA262999  Conyza bonariensis J. C. Roos 1940-9-18 229 San Bernardino Loma Linda Comment
  RSA35731  Quercus X morehus J. C. Roos 1946-11-6 5394 San Bernardino Oak Glen, San Bernardino Mts. 1220 Comment
  RSA443400  Phleum pratense J. C. Roos 1965-8-18 s.n. San Bernardino Moonridge, Bear Valley Comment
  RSA44903  Arabis holboellii var. pinetorum J. C. Roos 1949-6-27 3717 San Bernardino S Fork of Santa Ana River, San Bernardino Mts 2134 Comment
  RSA450076  Nicotiana glauca J. C. Roos 1965-6-27 s.n. San Bernardino Loma Linda Hills. 305 Comment
  RSA450438  Lupinus andersonii J. C. Roos 1965-7-17 s.n. San Bernardino San Bernardino Mountains Comment
  RSA450456  Bromus rubens J. C. Roos 1965-6-6 s.n. San Bernardino San Bernardino Mtns, Mill Creek near Fallsvale. Comment
  RSA658763  Schismus barbatus J. C. Roos 1965-6-6 s.n. San Bernardino Mill Creek. San Bernardino Mountains. Comment
  RSA659626  Eragrostis barrelieri J. C. Roos 1965-9-22 s.n. San Bernardino Barstow. Mojave Desert. Comment
  RSA659627  Eragrostis cilianensis J. C. Roos 1937-11-12 s.n. San Bernardino Loam Linda. 305 Comment
  RSA659782  Poa pratensis J. C. Roos 1965-6-26 s.n. San Bernardino Upper Santa Anita Canyon, Heart Bar area. San Bernardino Mtns. Comment
  RSA69866  Physalis philadelphica J. C. Roos 1951-9-15 5210 San Bernardino On recent earth fill with Panicum capillare, corner of Mill and Waterman. 305 Comment
  RSA78387  Anagallis arvensis J. C. Roos 1951-7-13 5064 San Bernardino Loma Linda, Irrigated garden. 323 Comment
  RSA86877  Eragrostis cilianensis J. C. Roos 1950-9-1 4961 San Bernardino Vicinity of Coliseum Mine, Clark Mountains 1646 Comment
  RSA89955  Digitaria sanguinalis J. C. Roos, L. Roos 1970-10-7 4997 -B San Bernardino Grand Terrace. Alt. 1000 ft. 305 Comment
  RSA92462  Ailanthus altissima J. C. Roos, L. Roos 1954-5-11 6117 San Bernardino Reche Canyon near mouth. 366 Comment
  RSA92463  Galinsoga parviflora var. parviflora J. C. Roos 1954-5-11 6116 San Bernardino Corner of Central and Anderson, Loma Linda. 320 Comment
  RSA92554  Helianthus petiolaris subsp. petiolaris J. C. Roos, L. Roos 1954-4-30 6071 San Bernardino Corner of Etiwanda Ace. and Highway 99 between Ontario & Fontana. 305 Comment
  RSA92557  Oenothera californica subsp. californica J. C. Roos, L. Roos 1952-5-9 5624 San Bernardino Near Santa Ana River, at Colton. 274 Comment
  RSA92559  Caulanthus inflatus J. C. Roos 1952-5-10 5629 San Bernardino Kremer Hills {Kramer Hills} 854 Comment
  RSA92566  Linanthus parryae J. C. Roos, L. Roos 1952-5-10 5644 San Bernardino Adelanto 915 Comment
  RSA92570  Trifolium wormskioldii J. C. Roos 1952-5-20 5699 San Bernardino E street, 1 mile S of San Bernardino. Comment
  RSA92719  Gilia sinuata J. C. Roos, L. Roos 1952-5-10 5626 San Bernardino Kremer Hills {Kramer Hills} 854 Comment
  RSA92761  Sesuvium verrucosum J. C. Roos, Lucille Roos 1954-9-14 6230 San Bernardino Baker. 280 Comment
  SEINET10460866  Nemacladus sigmoideus Roose 1952-5-10 ROOSE 5634 San Bernardino 853 Comment
  UC1043029  Oenothera californica subsp. californica John and Lucille Roos 1952-5-9 5625 San Bernardino near Santa Ana River; Colton 274 Comment
  CAS-BOT-BC181000  Cneoridium dumosum John Roos; Lucille Roos 1954-4-10 6061 San Diego San Pasqual 152 Comment
  CAS-BOT-BC94212  Quercus engelmannii J. C. Roos 1965-10-10 s.n. San Diego 5 mi NE of Fallbrook Comment
  CLARK-A1528-1338  Cneoridium dumosum John C. Roos, Lucille Roos 1954-4-10 6061 San Diego San Pasqual 152 Comment
  CLARK-A1528-1363  Phlox austromontana John C. Roos 1937-6-15 2015 San Diego Comment
  CLARK-A1528-1394  Amaranthus deflexus John C. Roos 1954-10-19 6255 San Diego Escondido 198 Comment
  CLARK-A1528-1462  Asclepias californica John C. Roos 1937-6-18 2390 San Diego Lake Henshaw Comment
  CLARK-A1528-1773  Cirsium congdonii John C. Roos 1937-6-11 2468 San Diego Campo Comment
  CLARK-A1528-1784  Corethrogyne filaginifolia var. peirsonii John C. Roos 1937-8-29 2550 San Diego Torrey Pines Comment
  CLARK-A1528-1845  Geraea viscida John C. Roos 1937-6-9 1430 San Diego Jacumba Comment
  CLARK-A1528-1898  Haplopappus palmeri John C. Roos 1965-10-9 San Diego La Mesa Comment
  CLARK-A1528-1907  Haplopappus venetus subsp. furfuraceus John C. Roos 1937-8-31 2507 San Diego Oceanside Comment
  CLARK-A1528-2140  Viguiera laciniata John C. Roos 1937-6-11 1443 San Diego Barrett Comment
  CLARK-A1528-2824  Lupinus concinnus subsp. orcuttii John C. Roos 1955-3-28 6281 San Diego Moosa Canyon 152 Comment
  CLARK-A1528-2838  Lotus haydonii John C. Roos 1937-6-10 2019 San Diego Mountain Spring Comment
  CLARK-A1528-2945  Centaurium venustum John C. Roos 1937-6-13 943 San Diego San Diego Comment
  CLARK-A1528-2985  Nama stenocarpa John C. Roos 1937-6-17 512 San Diego San Luis Rey Comment
  CLARK-A1528-3055  Xylococcus bicolor John C. Roos, Lucille Roos 1954-2-13 6044 San Diego Merriam Mountains Comment
  CLARK-A1528-3108  Salvia clevelandii John C. Roos, Lucille Roos 1950-8-19 4943 San Diego Torrey Pines Park Comment
  CLARK-A1528-3369  Clarkia purpurea John C. Roos 1937-6-8 935 San Diego Warner Springs Comment
  CLARK-A1528-3474  Linanthus dichotomus John C. Roos 1937-4-17 San Diego Warner Springs Comment
  CLARK-A1528-3587  Cheilanthes covillei John C. Roos 1937-4-18 San Diego Campo Comment
  CLARK-A1528-3810  Limonium sinuatum John C. Roos 1949-10-1 4670 San Diego Marsh Comment
  CLARK-A1528-3909  Rhamnus pilosa John C. Roos 1937-6-14 531 San Diego Alpine Comment
  CLARK-A1528-3942  Galium andrewsii John C. Roos 1937-6-8 2385 San Diego Warner Springs Comment
  CLARK-A1528-4033  Prunus fremontii John C. Roos 1937-4-18 San Diego Jacumba Comment
  CLARK-A1528-4217  Linaria canadensis John C. Roos 1962-4-7 San Diego Moosa Canyon Comment
  CLARK-A1528-4247  Mimulus fremontii John C. Roos 1937-6-14 1242 San Diego Descanso Comment
  CLARK-A1528-4808  Phleum pratense John C. Roos 1937-6-15 1434 San Diego Cuyamaca Lake Comment
  CLARK-A1528-4867  Dudleya saxosa subsp. aloides John C. Roos 1937-6-14 1787 San Diego Descanso Junction Comment
  CLARK-A1528-5022  Triglochin maritima John C. Roos 1937-6-13 1449 San Diego Imperial Beach Comment
  CLARK-A1528-5118  Galium nuttallii John C. Roos 1937-6-13 1438 San Diego East San Diego Comment
  CLARK-A1528-5567  Astragalus trichopodus subsp. leucopsis John C. Roos 1937-6-11 1442 San Diego Otay Lake Comment
  CLARK-A1528-5620  Wyethia ovata John C. Roos 1937-6-8 1488 San Diego Warner Springs Comment
  CLARK-A1528-5629  Coreopsis atkinsoniana John C. Roos 1955-7-2 6473 San Diego Escondido 182 Comment
  CLARK-A1528-5720  Ranunculus cymbalaria subsp. saximontanus John C. Roos 1937-6-8 1493 San Diego San Felipe Creek Comment
  POM251784  Bernardia incana J. C. Roos 1936-4-5 s.n. San Diego San Felipe Valley. Comment
Read comments
Sep 29 2009
  POM262918  Chamaesyce albomarginata J. C. Roos 1937-6-8 628 San Diego San Felipe Valley. Comment
  POM263245  Penstemon heterophyllus J. C. Roos 1937-6-15 631 San Diego Near Cuyamaca Lake, Cuyamaca Mountains. Comment
  POM264142  Saponaria officinalis J. C. Roos 1937-8-29 515 San Diego San Pasqual Valley. Comment
  POM265687  Lupinus concinnus subsp. concinnus J. C. Roos 1937-6-10 1779 San Diego Jacumba. Comment
  POM265706  Cycloloma atriplicifolium J. C. Roos 1937-6-16 1230 San Diego San Pasqual Valley. Comment
  POM265807  Ceanothus leucodermis J. C. Roos 1937-4-17 1783 San Diego Ramona. Comment
  RSA301476  Mimulus parishii J. C. Roos 1937-6-8 938 San Diego Damp sandy stream bed; a few miles north of Warners Hot Springs, eastern San Diego County, California. Comment
  RSA444680  Baccharis sarothroides J. C. Roos 1965-10-10 sn. San Diego 8 mi East of Dulzura. Comment
  RSA450058  Panicum hirticaule subsp. hirticaule J. C. Roos 1965-10-17 s.n. San Diego De Luz Canyon: Along De Luz-Murrieta Road and De Luz Creek. 150 Comment
  RSA450234  Jepsonia parryi J. C. Roos 1955-10-19 6572 San Diego On the hills by the dam in Moosa Canyon along Highway 395, 10 miles north of Escondido. 152 Comment
  RSA450429  Conyza coulteri J. C. Roos 1965-10-10 s.n. San Diego Otay Lake Comment
  RSA659601  Keckiella cordifolia J. C. Roos 1937-6-14 928 San Diego Alpine. Comment
  RSA662075  Amaranthus hybridus A. R. Roos 1937-12-2 s.n. San Diego De Luz Canyon: Along De Luz-Murrieta Road and De Luz Creek. 150 Comment
  RSA86903  Frankenia grandifolia J. C. Roos 1950-8-19 4941 San Diego Torrey Pines Park beach 5 Comment
  UCD133604  Laennecia coulteri J. C. Roos 1965-10-10 s.n. San Diego Otay Lake. Comment
  UCR129913  Gaura sinuata John C. Roos 1937-6-16 513 San Diego Peninsular Range, Near Ramona Comment
  UCR23336  Selaginella cinerascens John C. Roos 1937-6-16 1229 San Diego Peninsular Range, Hodges Lake 137 Comment
Read comments
Sep 19 2013
  UCR23675  Baccharis sarothroides John C. Roos 1965-10-10 s.n. San Diego Peninsular Range, 8 miles southeast of Dulzura [along Hwy 94, near Tecate Peak] Comment
  UCR23731  Chrysanthemum coronarium John C. Roos 1956-5-5 6578 San Diego [San Diego] Ward Rd & Mission Valley Freeway [I-8], along the roadside Comment
  UCR23776  Hulsea californica John C. Roos 1937-6-15 2504 San Diego Peninsular Range, Peak above Cuyamaca Lake Comment
  UCR23813  Hemizonia floribunda John C. Roos 1965-10-10 s.n. San Diego Peninsular Range, 8 miles southeast of Dulzura [along Hwy 94, near Tecate Peak] Comment
  UCR23835  Coreopsis douglasii John C. Roos 1955-3-26 6276 San Diego Peninsular Range, Moosa Canyon near dam, along Hwy 395, 10 miles north of Escondido 152 Comment
  UCR23980  Bothriochloa barbinodis John C. Roos 1965-10-10 s.n. San Diego Bank of Otay Lake 150 Comment
  UCR24235  Linanthus androsaceus subsp. luteolus John C. Roos 1937-6-14 1241 San Diego Peninsular Range, 6 miles north of Descanso Comment
  UCR30534  Elymus trachycaulus John C. Roos 1949-7-30 4584 San Diego Peninsular Range, Palomar Mountain, Doane Meadows Comment
  UCSB37811  Glebionis coronaria Roos, John 1956-5-5 San Diego Ward Road and Mission Valley Freeway Comment
  UCSB37814  Laennecia coulteri Roos, John 1965-10-10 San Diego Otay Lake Comment
  UCSB42186  Deinandra floribunda Roos, John 1965-10-10 San Diego 8 miles S. E. of Dulzura Comment
  POM251781  Lolium perenne subsp. multiflorum J. C. Roos 1937-6-13 3 San Diego Chula Vista Comment
  RSA0059180  Orobanche fasciculata John C. Roos 1937-6-15 1466 San Diego Public Camp, south of Cuyamaca Lake. Comment
  RSA0070996  Orobanche californica subsp. feudgei John C. Roos 1937-6-10 1782 San Diego Boulevard. Comment
  RSA0110651  Polygonum coccineum J. C. Roos 1937-8-30 2566 San Diego Sweetwater Lake Comment
  RSA92552  Cneoridium dumosum J. C. Roos 1954-4-10 6061 San Diego San Pasqual 152 Comment
  UCR23717  Geranium molle John C. Roos 1950-7-19 4853 San Francisco San Francisco Bay Region, San Francisco, Santiago St. and 22nd Ave. 61 Comment
  CLARK-A1528-1284  Oryzopsis miliacea John C. Roos, Lucille Roos 1953-11-29 6043 San Luis Obispo San Luis Obispo 91 Comment
  UCR19348  Piptatherum miliaceum John C. Roos, L. Roos 1953-11-29 6043 San Luis Obispo San Luis Obispo. Polytechnic College Campus 91 Comment
  UCR25091  Helenium puberulum John C. Roos, L. Roos 1954-12-26 6270 San Luis Obispo Central Coast, 2 mi south of Morro Bay near the mouth of a coastal canyon. 6 Comment
  UCR27653  Eriogonum parvifolium John C. Roos 1948-8-26 3969 San Luis Obispo 3 miles SE of Morro Bay 14 Comment
  CLARK-A1528-2008  Malacothrix glabrata John C. Roos 1937-3-26 2475 Santa Barbara Cuyama Valley Comment
  CLARK-A1528-2814  Lupinus arboreus John C. Roos 1937-7-1 1706 Santa Barbara Santa Ynez Mountains Comment
  CLARK-A1528-2917  Quercus douglasii John C. Roos 1937-7-4 1420 Santa Barbara Cuyama Valley Comment
  CLARK-A1528-3417  Romneya coulteri John C. Roos 1937-7-5 1772 Santa Barbara Cuyama Valley Comment
  CLARK-A1528-4149  Ribes speciosum Alfred R. Roos 1937-3-27 Santa Barbara Comment
  CLARK-A1528-5501  Baccharis pilularis John C. Roos 1937-3-26 Santa Barbara Comment
  CLARK-A1528-2304  Caulanthus coulteri John C. Roos 1937-3-26 2198 Santa Barbara Cuyama Valley Comment
  CLARK-A1528-3020  Pholistoma auritum John C. Roos 1937-3-26 1331 Santa Barbara Comment
  CLARK-A1528-4865  Lepechinia calycina var. wallacei John C. Roos 1937-7-1 2396 Santa Barbara Solvang Comment
  CLARK-A1528-5740  Orthocarpus John C. Roos 1937-7-2 469 b Santa Barbara Comment
  RSA0066490  Orobanche parishii John C. Roos 1937-7-4 1611 Santa Barbara Upper Cuyama Valley, near Wagy Ranch. Comment
  UCR30851  Trifolium kingii subsp. productum John C. Roos 1948-8-31 3926 Shasta Castle Crags 1494 Comment
  CLARK-A1528-2925  Quercus garryana var. breweri John C. Roos 1939-7-6 1516 Shasta Redding Comment
  CLARK-A1528-7822  Sorbus scopulina John C. Roos 1948-9-1 3984 Siskiyou Etna Comment
  RSA659604  Penstemon laetus subsp. sagittatus J. C. Roos 1948-9-2 3974 Siskiyou 6 miles SW of Yreka. Comment
  UCR18933  Sorbus scopulina John C. Roos 1948-9-1 3984 Siskiyou 10 mi. SW of Etna Comment
  UCR19715  Solanum physalifolium var. nitidibaccatum John C. Roos 1948-9-1 3988 Siskiyou Ft. Jones 838 Comment
  UCR24849  Helianthus bolanderi John C. Roos 1948-9-2 3977 Siskiyou Fort Jones 915 Comment
  UCR30511  Cheilanthes gracillima John C. Roos 1948-9-1 3947 Siskiyou High ridge, summit of pass, in the mountains SW of Etna Comment
  RSA44883  Penstemon anguineus J. C. Roos 1948-9-1 3945 Siskiyou 10 miles SW of Etna. Comment
  RSA45491  Chenopodium vulvaria J. C. Roos 1948-9-1 3985 Siskiyou Fort Jones. Comment
  CLARK-A1528-3216  Lythrum hyssopifolia John C. Roos 1938-6-19 Sonoma Novato Comment
  CLARK-A1528-3782  Polygonum convolvulus John C. Roos 1959-7-30 Sonoma Healdsburg Garden Comment
  UC1520113  Galium parisiense J. C. Roos 1950-7-22 4875 Sonoma sand bar along stream bed 2 mi e Duncan Mills 60 Comment
  UCR18634  Triteleia laxa John C. Roos 1950-7-22 4866 Sonoma Jenner 30 Comment
  UCR19269  Polygonum convolvulus John C. Roos 1959-7-30 s.n. Sonoma North Coast Ranges, Healdsburg garden Comment
  UCR23636  Rhododendron occidentale John C. Roos 1957-7-2 6645 Sonoma Miller Ridge Comment
  UCR25609  Anthoxanthum odoratum John C. Roos 1938-6-20 1524 Sonoma Between Santa Rosa and Sonoma Comment
Read comments
Feb 9 2010
  UCR30567  Helenium puberulum John C. Roos 1948-8-28 3957 Sonoma North Coast Ranges, Barrel Spring, Mill Creek, near Healdsburg 152 Comment
  UCR30590  Navarretia heterodoxa John C. Roos 1950-7-22 4877 Sonoma North Coast Range, 2 miles east of Duncan Mills 61 Comment
  UCR30591  Navarretia squarrosa John C. Roos 1950-7-22 4878 Sonoma North Coast Range, 2 miles east of Duncan Mills 61 Comment
  RSA664100  Carthamus tinctorius J. C. Roos, L. Roos 1956-9-2 6599 Sonoma Healdsburg dump Comment
  CLARK-A1528-3200  Veratrum californicum John C. Roos 1968-9-21 Tulare Fish Creek Meadows 2590 Comment
  CLARK-A1528-4416  Arceuthobium abietinum John C. Roos 1965-8-21 Tulare Sequoia Comment
  UCR23860  Quercus wislizeni John C. Roos 1965-8-21 s.n. Tulare Sierra Nevada Mtns., Middle Fork of Kaweah River Canyon, west of Sequoia National Forest Comment
  CLARK-A1528-3049  Kalmia polifolia subsp. microphylla John C. Roos 1964-9-13 Tulare Charlotte Lake 3169 Comment
  CLARK-A1528-4381  Sequoiadendron giganteum John C. Roos 1965-8-21 Tulare Sequoia National Park Comment
  RSA662529  Juniperus communis var. depressa J. C. Roos 1948-9-7 3998 Tuolumne Tioga Pass, Sierra Nevada. 2744 Comment
  UCR31735  Eucephalus breweri John C. Roos 1948-9-7 4013 Tuolumne Sierra Nevada Mountains, Yosemite National Park, slopes near Tuolumne Grove Big Trees 1220 Comment
  UCR34450  Senecio scorzonella John C. Roos 1948-9-7 4009 Tuolumne Sierra Nevada Mtns, Yosemite National Park, NE of Tuolumne Meadows 2744 Comment
  GH341022  Swallenia alexandrae J. C. Roos 1955-5-13 6365 Unknown west side Eureka Valley at mouth of Marble Canyon. 1036 Comment
  GH341024  Swallenia alexandrae J. C. Roos & L. Roos 1954-6-28 6175 Unknown north slope of sand dunes at SE end Eureka Valley. 929 Comment
  GH355757  Muhlenbergia arsenei J. C. Roos & A. R. Roos 1950-8-5 4896 Unknown 1 1/2 miles SW of Coliseum Mine, Clark Mts., Mojave Desert. 1737 Comment
  GH355759  Muhlenbergia porteri J. C. Roos 1955-5-13 6341 Unknown west base of Last Chance Mts., east of Eureka Valley sand dunes. 1219 Comment
  GH364971  Malosma laurina J. C. Roos & L. Roos 1954-7-10 6191 Unknown north side of Pigeon Pass, Box Springs Mts. 487 Comment
  GH365877  Cordylanthus tecopensis J. C. Roos & L. Roos 1950-8-7 4929 Unknown Tecopa Hot Springs 426 Comment
  GH365879  Cordylanthus tecopensis J. C. Roos & L. Roos 1954-9-14 6231 Unknown flats along Amargosa River bottom 3 miles south of Shoshone. 432 Comment
  GH365882  Cordylanthus tecopensis J. C. Roos & L. Roos 1953-10-31 6033 Unknown open flats along Amargosa River 3 miles south of Shoshone. 441 Comment
  GH376344  Atriplex confertifolia J. C. Roos & A. R. Roos 1953-8-10 5978 Unknown Mazourka Canyon, Inyo Mts. 2438 Comment
  GH376988  Portulaca halimoides J. C. Roos 1950-9-1 4951 Unknown Valley Wells, eastern Mohave Desert 1127 Comment
  GH378785  Boechera lemmonii J. C. Roos & L. Roos 1951-8-10 5144 Unknown east face White Mtn. Peak, White Mts. 4145 Comment
  GH379229  Draba californica J. C. Roos & L. Roos 1951-8-10 5136 Unknown McAfee Meadow, White Mts. 3657 Comment
  GH386538  Brickellia desertorum J. C. Roos & L. Roos 1950-10-14 5006 Unknown east end Jurupa Hills near corner of Alta and Canal Streets, West Riverside 304 Comment
  GH387226  Ericameria albida J. C. Roos & A. R. Roos 1954-8-15 6224 Unknown Lower Warm Spring, Saline Valley 426 Comment
  GH387228  Ericameria albida J. C. Roos & L. Roos 1954-9-14 6232 Unknown Amargosa River bottomland 3 miles south of Shoshone 432 Comment
  GH424439  Petalonyx nitidus J. C. Roos & L. Roos 1954-6-28 6169 Unknown Loretto Road, west side Eureka Valley, Inyo Mts. 1676 Comment
  GH443029  Chaetadelpha wheeleri J. C. Roos & A. R. Roos 1954-8-13 6208 Unknown southeast end Eureka Valley 944 Comment
  CAS-BOT-BC294102  Deinandra kelloggii J. C. Roos 1965-6-27 s.n. Unknown Reche Canyon, Riverside or San Bernardino County Comment
  GH427975  Hecastocleis shockleyi J. C. Roos 1955-5-13 6348 Unknown west base Last Chance Mts., east of Eureka Valley 1310 Comment
  SEINET770787  Nitrophila mohavensis J. C. Roos, A. R. Roos 1954-1 Unknown Comment
  CLARK-A1528-1238  Pedicularis densiflora John C. Roos 1957-3-15 6609 Ventura Newbury Park Comment
  CLARK-A1528-3396  Oxalis californica John C. Roos 1958-3-8 Ventura Conejo Comment
  CLARK-A1528-4166  Antirrhinum nuttallianum John C. Roos 1956-4-8 6575 Ventura Potrero Valley Comment
  UCR26325  Parapholis incurva John C. Roos 1937-6-29 1482 Ventura S.E. of Oxnard Comment
  UCSB42255  Eriogonum crocatum Roos, John 1958-5-22 Ventura Conejo Grade summit on N. base of Santa Monica Mtns. Comment
  CLARK-A1528-2875  Psoralea physodes John C. Roos 1937-7-5 1423 Ventura Sespe Creek Comment
  CLARK-A1528-2934  Garrya elliptica John C. Roos 1937-7-5 1425 Ventura Wheeler Springs Comment
  POM263250  Melica imperfecta J. C. Roos 1937-7-5 449 Ventura Wheeler Springs. Comment
  POM301696  Pennisetum villosum J. C. Roos 1937-6-30 2257 Ventura Oxnard near dwelling Comment
  RSA0119626  Eriastrum densifolium subsp. austromontanum J. C. Roos 1937-7-5 s.n. Ventura Upper Sespe Creek. Comment
  POM266630  Aristida oligantha J. C. Roos 1939-7-3 1517 Yuba plains near Marysville Comment
  UCR25611  Aristida oligantha John C. Roos 1939-7-3 1517 Yuba Marysville Comment



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