Search Results — 2000 specimen records retrieved (1762 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/consortium/).
 Records are made available under the CCH Data Use Terms.

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A yellow cell in the column headed "?", for records with coordinates, indicates a discrepancy with respect to range as specified in the eFlora. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  UCR19098  Proboscidea louisianica John C. Roos 1948-9-2 4024 Colusa Sacramento Valley, west of Williams 40 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
  CLARK-A1528-2201  Coldenia canescens var. pulchella John C. Roos 1949-4-7 4163 Imperial Chocolate Mountains Comment
  CLARK-A1528-2425  Lepidium fremontii John C. Roos 1949-4-6 Imperial Chocolate Mountains Comment
  CLARK-A1528-2514  Atriplex elegans subsp. fasciculata John C. Roos 1949-4-6 4141 Imperial Pope Hot Springs Comment
  CLARK-A1528-3404  Argemone munita John C. Roos 1949-4-7 4162 Imperial Salton Trough Comment
  CLARK-A1528-4358  Physalis acutifolia John C. Roos 1937-6-9 1439 Imperial Westmorland Comment
  CLARK-A1528-4787  Panicum urvilleanum John C. Roos 1949-4-7 4177 Imperial Comment
  CLARK-A1528-4810  Phragmites australis John C. Roos 1947-3-1 3297 Imperial Fish Springs 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
  CLARK-A1528-7862  Lepidium lasiocarpum John C. Roos 1949-4-8 4189 Imperial Chocolate Mountains Comment
  RSA450765  Castela emoryi J. C. Roos 1959-6-11 s.n. Imperial Coyote Wells, 6 miles SE of Coyote Wells along Hwy 98 Comment
Read comments
Oct 9 2010
  RSA45514  Teucrium cubense subsp. depressum J. C. Roos 1949-4-8 4201 Imperial Edge of irrigated field, Palo Verde. Comment
  RSA45521  Mirabilis laevis var. villosa J. C. Roos, L. Roos 1949-4-8 4182 Imperial Chocolate Mountains, along wash east end of mountains. Comment
  RSA45523  Astragalus magdalenae var. peirsonii J. C. Roos 1949-4-7 4170 Imperial West of Yuma. Comment
  RSA659180  Dalea mollissima J. C. Roos 1952-3-28 5427 Imperial Truck Haven along west side Salton Sea. 0 Comment
  UCR26169  Camissonia claviformis John C. Roos 1952-3-28 5425 Imperial Sonoran (Colorado) Desert, Truckhaven [Salton City], W side of Salton Sea 0 Comment
  UCR26316  Aristida adscensionis John C. Roos 1949-4-7 4176 Imperial Sonoran (Colorado) Desert, Lower Colorado River Valley, near Winterhaven 40 Comment
  UCSB45568  Aristida adscensionis Roos, John 1949-4-7 Imperial Flats near Winterhaven, lower Colorado River Valley 40 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-BC105811  Cirsium arizonicum J. C. Roos; A. R. Roos 1953-8-9 5973 Inyo Tamarack Canyon 2743 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-BC110320  Kochia americana John Roos; Lucille Roos 1947-7-15 2866 Inyo Darwin Mesa. 1524 Comment
  CAS-BOT-BC131489  Ericameria albida J. C. Roos; A. R. Roos 1954-8-15 6224 Inyo Lower Warm Spring, Saline Valley 426 Comment
  CAS-BOT-BC136948  Cercocarpus ledifolius var. intricatus J. C. Roos; A. R. Roos 1953-8-10 5975 Inyo Mazourka Canyon, Inyo Mts. 2468 Comment
  CAS-BOT-BC144008  Horkelia hispidula John Roos; Lucille Roos 1952-7-28 5856 Inyo Head of Wyman Canyon, White Mts. 3200 Comment
  CAS-BOT-BC148491  Cercocarpus ledifolius var. ledifolius J. C. Roos 1955-7-21 6479 Inyo Crest of Last Chance Mountains, 2.5 miles south of Willow Spring 2377 Comment
  CAS-BOT-BC154311  Phacelia peirsoniana John Roos; Lucille Roos 1952-7-31 5878 Inyo N.W. of Cedar Flat, White Mts. 2438 Comment
  CAS-BOT-BC159752  Prunus andersonii John C. Roos 1955-5-15 6370 Inyo Willow Spring, Last Chance Mts. 1828 Comment
  CAS-BOT-BC178792  Astragalus calycosus J. C. Roos 1947-7-11 2903 Inyo Mohagany Flats, Panamint Mts. 2499 Comment
  CAS-BOT-BC181689  Eremogone kingii var. glabrescens J. C. Roos; A. R. Roos 1961-6-15 238 Inyo W. slope upper Silver Canyon, White Mountains 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-BC217584  Galium hypotrichium subsp. tomentellum John Roos; Lucille Roos 1947-7-13 2876 Inyo Telescope Peak, Panamint Mountains 3261 Comment
  CAS-BOT-BC218361  Frasera albomarginata J. C. Roos 1955-6-19 6437 Inyo 2.5 miles south of Willow Spring, Last Chance Meadow 2316 Comment
  CAS-BOT-BC221892  Swallenia alexandrae J. C. Roos; L. Roos 1955-4-10 6320 Inyo Eureka Valley 944 Comment
  CAS-BOT-BC235439  Sporobolus cryptandrus J. C. Roos; E. C. Jaeger 1955-7-23 6517 Inyo Saline Valley below mouth of Hunter Canyon 350 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-BC238192  Cordylanthus tecopensis J. C. Roos; A. R. Roos 1950-8-7 4929 Inyo Tecopa Hot Springs 426 Comment
  CAS-BOT-BC238196  Cordylanthus tecopensis J. C. Roos; A. R. Roos 1950-8-7 4929 Inyo Tecopa Hot Springs 426 Comment
  CAS-BOT-BC238203  Cordylanthus tecopensis J. C. Roos; A. R. Roos 1954-6-13 6139 Inyo Amargosa Desert 3 miles NE of Death Valley Junction, along Ash Meadows road 624 Comment
  CAS-BOT-BC256244  Eriogonum deflexum var. baratum J. C. Roos 1955-7-22 6499 Inyo Willow Creek, west slope Last Chance Mountains 1615 Comment
  CAS-BOT-BC262190  Eriogonum umbellatum var. versicolor John Roos; Lucille Roos 1951-8-9 5126 Inyo Reed Flat, White Mts. 3169 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-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-BC283900  Leymus cinereus J. C. Roos; A. R. Roos 1947-7-11 2906 Inyo Wild Rose Canyon, Panamint Mountains 2377 Comment
  CAS-BOT-BC293320  Ericameria teretifolia John Roos; Lucille Roos 1947-9-20 2811 Inyo Wild Rose [Wildrose] Canyon, Panamint Mts. 1524 Comment
  CAS-BOT-BC293571  Erigeron argentatus J. C. Roos 1955-6-18 6424 Inyo 2 miles NE of Willow Spring, Last Chance Mountains 2011 Comment
  CAS-BOT-BC294942  Erigeron clokeyi John Roos; Lucille Roos 1947-7-11 2905 Inyo Mahogany Flats, Panamint Mts. 2468 Comment
  CAS-BOT-BC305844  Heliomeris multiflora var. nevadensis J. C. Roos 1955-6-17 6400 Inyo 2 miles NE of Willow Spring, Last Chance Mountains 2011 Comment
  CAS-BOT-BC330358  Perityle megalocephala var. megalocephala J. C. Roos; A. R. Roos 1954-8-14 6217 Inyo The Narrows, Marble Canyon, Inyo Mts. 2179 Comment
  CAS-BOT-BC330669  Acer glabrum var. diffusum A. R. Roos; J. C. Roos 1953-8-9 5946 Inyo Tamarack Canyon, Inyo Mts. 2712 Comment
  CAS-BOT-BC33079  Cryptantha roosiorum John C. Roos; A. R. Roos 1953-8-13 6015 Inyo Crest of Inyo Mts., 3 miles E of Badger Flat. 3230 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-BC377027  Townsendia scapigera John Roos; Lucille Roos 1951-8-9 5120 Inyo Reed Flat and 1 mile south of Reed Flat, White Mts. 3048 Comment
  CAS-BOT-BC60966  Stanleya pinnata var. pinnata John C. Roos 1955-5-13 6353 Inyo Southeast end Eureka Valley. 914 Comment
  CAS-BOT-BC60967  Stanleya pinnata var. pinnata John C. Roos 1955-5-13 6366 Inyo West side Eureka Valley at mouth of Marble Canyon. 1036 Comment
  CAS-BOT-BC60968  Stanleya pinnata var. pinnata John C. Roos 1955-5-13 6366 Inyo West side Eureka Valley at mouth of Marble Canyon. 1036 Comment
  CAS-BOT-BC69408  Pellaea breweri John Roos; Lucille Roos 1947-7-14 2852 Inyo north slope Baldy Peak, Panamint Mts. 2651 Comment
  CAS-BOT-BC7247  Nitrophila mohavensis John C. Roos; A. R. Roos 1954-6-13 6140 Inyo Amargosa Desert, 3 mi NE of Death Valley Junction along Ash Meadows Road. 624 Comment
  CAS-BOT-BC78590  Pinus flexilis J. C. Roos; A. R. Roos 1953-8-9 5972 Inyo Tamarack Canyon, Inyo Mts. 2865 Comment
  CAS-BOT-BC93344  Ribes cereum John Roos; Lucille Roos 1954-6-29 6190 Inyo The Narrows, Marble Canyon, Inyo Mountains. 2209 Comment
  CAS-BOT-BC93599  Artemisia tridentata subsp. tridentata John Roos; Lucille Roos 1947-9-20 2809 Inyo Wild Rose Canyon, Panamint Mts. 2133 Comment
  CLARK-A1528-1005  Agrostis idahoensis John C. Roos 1937-8-8 424 Inyo Lone Pine Comment
  CLARK-A1528-1064  Tetradymia canescens John C. Roos, Alfred R. Roos 1953-8-8 5940 Inyo Inyo Mountains 2651 Comment
  CLARK-A1528-1101  Aster canescens John C. Roos 1953-8-8 5941 Inyo Inyo Mountains 2651 Comment
  CLARK-A1528-1170  Cuscuta indecora John C. Roos 1965-9-18 Inyo Inyo Mountains Comment
  CLARK-A1528-1231  Cordylanthus tecopensis John C. Roos, Alfred R. Roos 1954-6-13 6139 Inyo Death Valley Junction 624 Comment
  CLARK-A1528-1285  Oryzopsis bloomeri John C. Roos, Lucille Roos 1952-8-8 5092 Inyo White Mountains 2590 Comment
  CLARK-A1528-1301  Petalonyx nitidus John C. Roos 1965-6-11 Inyo Panamint Mountains Comment
  CLARK-A1528-1362  Gilia congesta John C. Roos, Alfred R. Roos 1953-8-7 5929 Inyo Inyo Mountains Comment
  CLARK-A1528-1376  Acer glabrum John C. Roos 1952-7-28 Inyo White Mountains on steep north canyon wall; with Philadelphus serpyllifolius, Physocarpus alternans, ,etc. Comment
  CLARK-A1528-1441  Lomatium inyoense John C. Roos 1954-6-24 6148 Inyo Inyo Mountains 3108 Comment
  CLARK-A1528-1603  Aster canescens John C. Roos 1953-8-8 5941 Inyo Inyo Mountains 2651 Comment
  CLARK-A1528-1662  Brickellia californica John C. Roos 1949-9-3 4649 Inyo Kingston Mountains 1523 Comment
  CLARK-A1528-1703  Chrysothamnus albidus John C. Roos, Lucille Roos 1954-11-23 6259 Inyo Saline Valley 426 Comment
  CLARK-A1528-1717  Chrysothamnus nauseosus John C. Roos 1954-8-14 6215 Inyo Inyo Mountains 2316 Comment
  CLARK-A1528-1742  Chrysothamnus teretifolius John C. Roos 1965-9-18 Inyo Panamint Mountains Comment
  CLARK-A1528-1746  Chrysothamnus viscidiflorus subsp. puberulus John C. Roos 1951-8-8 5091 Inyo White Mountains 2590 Comment
  CLARK-A1528-1866  Gutierrezia sarothrae John C. Roos 1941-8-17 54 Inyo Panamint Mountains 2804 Comment
  CLARK-A1528-1872  Haplopappus acradenius John C. Roos 1937-8-6 2445 Inyo Big Pine Comment
  CLARK-A1528-1876  Haplopappus brickellioides John C. Roos 1955-7-23 6513 Inyo Inyo Mountains 640 Comment
  CLARK-A1528-1997  Stephanomeria spinosa John C. Roos 1955-7-23 6509 Inyo Inyo Mountains 2194 Comment
  CLARK-A1528-2061  Pluchea sericea John C. Roos 1965-7-11 Inyo Death Valley Comment
  CLARK-A1528-2114  Tanacetum canum John C. Roos 1964-8-30 Inyo Lone Pine Canyon Comment
  CLARK-A1528-2145  Viguiera reticulata John C. Roos 1947-4-20 3508 Inyo Death Valley 701 Comment
  CLARK-A1528-2238  Cryptantha virginensis John C. Roos 1947-7-13 2861 Inyo Panamint Mountains 3047 Comment
  CLARK-A1528-2240  Lappula redowskii John C. Roos 1948-7-4 3876 Inyo Panamint Mountains 2468 Comment
  CLARK-A1528-2242  Lappula redowskii John C. Roos, Lucille Roos 1954-6-26 6155 Inyo Inyo Mountains 2682 Comment
  CLARK-A1528-2345  Streptanthus cordatus John C. Roos 1952-7-27 5835 Inyo White Mountains 3139 Comment
  CLARK-A1528-2531  Allenrolfea occidentalis John C. Roos 1938-4-18 8725 Inyo Death Valley National Park Comment
  CLARK-A1528-2545  Atriplex confertifolia John C. Roos 1938-4-18 Inyo Death Valley National Park Comment
  CLARK-A1528-2592  Nitrophila mohavensis John C. Roos 1965-7-11 Inyo Death Valley Junction Comment
  CLARK-A1528-2675  Ephedra viridis John C. Roos 1949-4-7 Inyo Panamint Mountains Comment
  CLARK-A1528-2750  Astragalus lentiginosus John C. Roos 1958-7-5 Inyo Inyo Mountains Comment
  CLARK-A1528-2845  Lupinus magnificus John C. Roos 1947-4-20 3513 Inyo Panamint Mountains 1280 Comment
  CLARK-A1528-2941  Centaurium calycosum John C. Roos 1965-7-11 Inyo Tecopa Comment
  CLARK-A1528-3034  Triglochin concinna var. debilis John C. Roos 1965-7-11 Inyo Tecopa 426 Comment
  CLARK-A1528-3080  Cyperus laevigatus John C. Roos, Lucille Roos 1953-11-2 6042 Inyo Tecopa Hot Springs 426 Comment
  CLARK-A1528-3348  Oenothera deltoides subsp. eurekensis John C. Roos, Philip A. Munz 1954-9-18 20158 Inyo Eureka Dunes Comment
  CLARK-A1528-3450  Navarretia breweri John C. Roos, Lucille Roos 1951-8-11 5166 Inyo White Mountains 3352 Comment
  CLARK-A1528-3551  Pinus flexilis John C. Roos, Alfred R. Roos 1953-8-9 5972 Inyo Inyo Mountains 2864 Comment
  CLARK-A1528-3553  Pinus longaeva John C. Roos, Alfred R. Roos 1953-8-9 5956 Inyo Inyo Mountains 3047 Comment
  CLARK-A1528-3605  Chorizanthe rigida John C. Roos 1947-4-19 3495 Inyo Death Valley Comment
  CLARK-A1528-3653  Eriogonum heermannii subsp. argense John C. Roos, Lucille Roos 1951-8-12 5191 Inyo White Mountains 2194 Comment
  CLARK-A1528-3705  Eriogonum roseum John C. Roos 1937-8-5 615 Inyo White Mountain Comment
  CLARK-A1528-3753  Oxytheca dendroidea John C. Roos 1955-7-23 6504 Inyo Waucoba Mountain 2194 Comment
  CLARK-A1528-3917  Abronia nana subsp. covillei John C. Roos 1967-8-6 Inyo Inyo Mountains Comment
  CLARK-A1528-3955  Galium stellatum subsp. eremicum John C. Roos 1938-4-15 496 Inyo Darwin Falls Comment
  CLARK-A1528-3980  Cercocarpus intricatus John C. Roos, Lucille Roos 1954-6-26 6157 Inyo Inyo Mountains 2743 Comment
  CLARK-A1528-3986  Chamaebatiaria millefolium John C. Roos, Lucille Roos 1951-8-12 5188 Inyo White Mountains 2895 Comment
  CLARK-A1528-4102  Jamesia americana subsp. californica John C. Roos, Lucille Roos 1947-7-14 2848 Inyo Panamint Mountains 2743 Comment
  CLARK-A1528-4198  Cordylanthus helleri John C. Roos 1958-8-30 Inyo Inyo Mountains Comment
  CLARK-A1528-4232  Mimulus bigelovii John C. Roos 1965-7-10 Inyo Panamint Range Comment
  CLARK-A1528-4257  Mimulus lewisii John C. Roos 1937-8-8 2404 Inyo Lone Pine Canyon Comment
  CLARK-A1528-4293  Penstemon bridgesii John C. Roos 1947-7-12 2898 Inyo Panamint Mountains 2499 Comment
  CLARK-A1528-4389  Parietaria floridana John C. Roos, Lucille Roos 1955-4-6 6297 Inyo Inyo Mountains 502 Comment
  CLARK-A1528-4486  Aristida purpurea John C. Roos, Lucille Roos 1954-5-9 6108 Inyo Panamint Mountains 1219 Comment
  CLARK-A1528-4602  Elymus cinereus John C. Roos, Lucille Roos 1951-8-12 5185 Inyo White Mountains 3108 Comment
  CLARK-A1528-4779  Oryzopsis micrantha John C. Roos, Lucille Roos 1952-7-28 5840 Inyo White Mountains 2682 Comment
  CLARK-A1528-4956  Encelia virginensis subsp. actonii John C. Roos 1947-4-18 3461 Inyo Comment
  CLARK-A1528-5115  Gilia congesta John C. Roos 1953-8-7 5929 Inyo Inyo Mountains 2682 Comment
  CLARK-A1528-5164  Eriogonum heermannii var. argense John C. Roos 1953-8-8 5937 Inyo Inyo Mountains 2743 Comment
  CLARK-A1528-5267  Stipa comata John C. Roos, Lucille Roos 1955-6-26 6162 Inyo Inyo Mountains 2621 Comment
  CLARK-A1528-5271  Stipa californica John C. Roos, Lucille Roos 1951-8-8 5107 Inyo White Mountains 3169 Comment
  CLARK-A1528-5273  Stipa comata John C. Roos, Lucille Roos 1951-8-8 5088 Inyo White Mountains 2590 Comment
  CLARK-A1528-5294  Trisetum spicatum John C. Roos 1937-8-8 423 Inyo Lone Pine Canyon Comment
  CLARK-A1528-5305  Stipa occidentalis John C. Roos 1955-6-21 6462 Inyo Last Chance Mountains 1950 Comment
  CLARK-A1528-5315  Cyperus laevigatus John C. Roos, Lucille Roos 1953-11-2 6042 Inyo Tecopa Hot Springs 426 Comment
  CLARK-A1528-5353  Arctomecon merriamii John C. Roos, Lucille Roos 1954-5-8 6099 Inyo Grapevine Mountains 0 Comment
  CLARK-A1528-5368  Oenothera heterochroma subsp. monoensis John C. Roos, Alfred R. Roos 1954-8-14 6213 Inyo Inyo Mountains 2316 Comment
  CLARK-A1528-5388  Caulanthus crassicaulis John C. Roos 1954-6-28 6168 Inyo Inyo Mountains 2255 Comment
  CLARK-A1528-5408  Atriplex parryi John C. Roos 1950-4-7 4726 Inyo Tecopa 426 Comment
  CLARK-A1528-5485  Apocynum cannabinum John C. Roos 1965-7-11 Inyo Death Valley National Park Comment
  CLARK-A1528-5551  Stipa pinetorum John C. Roos, Alfred R. Roos 1954-6-12 6136 Inyo Panamint Range 2682 Comment
  CLARK-A1528-5736  Cordylanthus ramosus subsp. eremicus John C. Roos 1941-8-17 76 Inyo Panamint Mountains Comment
  CLARK-A1528-7817  Haplopappus acaulis Alfred R. Roos, John C. Roos 1953-8-9 5969 Inyo Inyo Mountains 3230 Comment
  CLARK-A1528-7823  Ribes velutinum Alfred R. Roos, John C. Roos 1953-8-10 5976 Inyo Mazourka Canyon 2438 Comment
  CLARK-A1528-7838  Eurotia lanata John C. Roos 1938-4-18 8718 Inyo Death Valley National Park Comment
  HSC78525  Heliomeris multiflora J. C. Roos 1965-7-11 Inyo Wildrose Canyon, at kilns; Panamint Mtns. Comment
  LA102202  Poa secunda John C. Roos; Lucille Roos 1954-5-7 6076 Inyo Amargosa Desert, 3 mi. NE of Death Valley Junction on Ash Meadows road 624 Comment
  LA102300  Eriogonum heermannii var. argense John C. Roos; Alfred R. Roos 1955-8-24 6537 Inyo Last Chance Mountains, ridge 2 mi. S of Willow Spring 2285 Comment
  LA102340  Atriplex polycarpa Alfred R. Roos; 1950-8-7 sn Inyo China Ranch on the Amargosa River S of Tecopa 426 Comment
  LA102384  Chrysothamnus viscidiflorus subsp. puberulus J. C. Roos; A. R. Roos 1955-8-24 6542 Inyo Last Chance Mountains, 1 mi. NE of Willow Spring 1859 Comment
  LA40287  Lomatium foeniculaceum subsp. inyoense John C. Roos; Alfred R. Roos 1953-8-9 5964 Inyo INYO MOUNTAINS, Upper Tamarack Canyon 3108 Comment
  NY185734  Stanleya pinnata subsp. inyoensis J. C. Roos 1954-6-28 6177 Inyo Southeast end of Eureka Valley 3000 Comment
  NY280872  Eriogonum heermannii var. argense J. C. Roos 1951-8-12 5191 Inyo Westgaard Pass, White Mtns. 2194.6 Comment
  NY282410  Eriogonum ovalifolium var. nivale J. C. Roos 1952-7-27 5833 Inyo SE rim Reed Flat, White Mts. 3139.4 Comment
  NY406048  Lomatium inyoense J. C. Roos 1954-6-24 6148 Inyo Pass at crest of Inyo Mountains, near Side Hill Spring, 3 miles east of Badger Flat 3109.0 Comment
  NY593852  Penstemon floridus var. floridus J. C. Roos 1951-8-7 5084 Inyo West side Westgaard Pass, White Mountains 2133.6 Comment
  NY651577  Penstemon scapoides J. C. Roos 1953-8-8 5936 Inyo Hill behind Blue Bell Mine, Badger Flat, Inyo Mountains 2743.2 Comment
  NY676927  Astragalus newberryi var. castoreus J. C. Roos 1953-8-9 5957 Inyo Tamarack Canyon, Inyo Mountains 3048 Comment
  NY802419  Lupinus polyphyllus var. humicola J. C. Roos 1955-5-15 6374 Inyo 2 miles northeast of Willow Spring, Last Chance Mountains, almost on the Calif-Nevada state line. 2042 Comment
  NY9665  Swallenia alexandrae J. C. Roos 1955-5-13 6365 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
  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
  OBI30454  Sambucus nigra subsp. caerulea John C. Roos 1965-6-11 s.n. Inyo Upper Wildrose cyn, Panamint mtns Comment
Read comments
Apr 25 2019
  POM261403  Artemisia dracunculus J. C. Roos 1941-8-17 48 Inyo Telescope Peak, Panamint Mts 3366 Comment
  POM261424  Eriogonum umbellatum var. subaridum J. C. Roos 1941-8-15 69 Inyo Wildrose Canyon by Kilns, Panamint Mountains. Comment
  POM263125  Pinus balfouriana J. C. Roos 1937-8-8 341 Inyo Lone Pine Canyon. 2744 Comment
  POM263253  Potentilla drummondii J. C. Roos 1937-8-8 537 Inyo Lone Pine Canyon. 2744 Comment
  POM274203  Brickellia multiflora J. C. Roos 1947-9-18 2792 Inyo Wildrose Canyon, Panamint Mts. 1067 Comment
  POM274208  Ericameria gilmanii J. C. Roos 1947-9-19 2798 Inyo Panamint Mountains; Ridge SE of Telescope Peak. 3354 Comment
  POM274210  Chrysothamnus viscidiflorus subsp. viscidiflorus J. C. Roos 1947-9-19 2800 Inyo Rocky ridge between Telescope Peak and Raldy Peak, Panamint Mt. 3049 Comment
  POM274216  Artemisia tridentata J. C. Roos 1947-9-20 2807 Inyo Panamint Mountain Range, Wildrose Canyon 2378 Comment
  POM274230  Eriogonum heermannii J. C. Roos 2830 Inyo Wildrose Canyon. Panamint Mountain Range. 1280 Comment
  POM301597  Phacelia frigida subsp. dasyphylla J. C. Roos 1937-8-8 1021 Inyo Consolation Lake, Lone Pine Canyon. Comment
  RSA104293  Eriogonum fasciculatum var. polifolium J. C. Roos 1955-5-13 6347 Inyo West base Last Chance Mountains, east of Eureka Valley sand dunes 1220 Comment
  RSA105011  Tetradymia glabrata J. C. Roos 1955-5-16 6387 Inyo narrow canyon along Loretto road 1.5 miles southwest of Loretto Mine 1676 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
  RSA105039  Amphipappus fremontii J. C. Roos 1955-5-13 6336 Inyo West base Last Chance Mountains, east of Eureka Valley sand dunes 1220 Comment
  RSA155643  Streptanthus cordatus J. C. Roos 1955-6-17 6399 Inyo 2 miles north of Willow Spring, Last Chance Mountains. 2011 Comment
  RSA155687  Poa fendleriana J. C. Roos 1955-6-20 6455 Inyo Last Chance Mountains, 2 miles NE of Willow Spring. 2012 Comment
  RSA155712  Abronia nana var. covillei J. C. Roos 1955-7-21 6485 Inyo Whitetop Peak, summit Last Chance Mountains 2561 Comment
  RSA155728  Arenaria kingii subsp. compacta J. C. Roos 1955-6-19 6447 Inyo Last Chance Mountains: Whitetop Peak, 2 miles west of Last Chance Spring. 2576 Comment
  RSA155732  Ribes cereum J. C. Roos 1955-6-19 6450 Inyo Last Chance Mountains: Whitetop Peak, 2 miles west of Last Chance Spring. 2576 Comment
  RSA155757  Eriogonum panamintense var. panamintense J. C. Roos, A. R. Roos 1955-8-27 6562 Inyo Soldier Flat, east base Waucoba Mt., Inyo Mountains. 2165 Comment
  RSA157092  Penstemon floridus J. C. Roos 1955-6-18 6423 Inyo 2 mi. NE of Willow Spring. 2012 Comment
  RSA157097  Sporobolus cryptandrus J. C. Roos, A. R. Roos 1955-8-23 6532 Inyo Canyon at West base Last Chance Mountains, east of Eureka Valley sand dunes. 1220 Comment
  RSA33684  Psorothamnus polydenius J. C. Roos 1947-7-15 2826 Inyo Darwin Mesa. 1524 Comment
  RSA34198  Artemisia tridentata subsp. vaseyana J. C. Roos 1947-9-19 2796 Inyo Panamint Mountains; Ridge SE of Telescope Peak. 3354 Comment
  RSA34202  Artemisia nova J. C. Roos 1947-9-20 2810 Inyo Wildrose Canyon at Kilns, Panamint Mountains Comment
  RSA40546  Amelanchier utahensis subsp. covillei J. C. Roos 1947-7-12 2832 Inyo Thorndykes Spring, WIldrose Canyon, Panamint Mts. Comment
  RSA40549  Rosa woodsii subsp. gratissima J. C. Roos 1947-7-12 2837 Inyo Panamint Mountains: Thorndykes Springs, Wildrose Canyon. 2409 Comment
  RSA40577  Purshia stansburyana J. C. Roos 1947-7-14 2879 Inyo Mahogany Flats. Panamint Mtns. 2470 Comment
  RSA40582  Elymus multisetus J. C. Roos 1947-7-13 2889 Inyo Near Arcane Meadows, Panamint Mountains. 3018 Comment
  RSA40598  Calochortus panamintensis J. C. Roos 1947-7-13 2863 Inyo Telescope Peak, Panamint Mountains 3049 Comment
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Jul 18 2011
  RSA444469  Penstemon newberryi J. C. Roos 1965-8-9 s.n. Inyo Heart Lake, Independence Creek. Comment
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Aug 22 2011
  RSA444488  Iva acerosa J. C. Roos 1950-8-7 s.n. Inyo Tecopa. Comment
  RSA450124  Prosopis glandulosa var. torreyana J. C. Roos 1965-7-11 s.n. Inyo Warm Springs, Furnace Creek, Death Valley Comment
  RSA450199  Triglochin concinna var. debilis J. C. Roos 1965-7-11 s.n. Inyo Tecopa. 427 Comment
  RSA450441  Distichlis spicata var. stolonifera J. C. Roos 1965-7-11 s.n. Inyo 2 miles NE of Death Valley Junction. 623 Comment
  RSA47568  Cleomella brevipes J. C. Roos, Weatherby 1949-9-3 3565 Inyo Tecopa Hot Springs 427 Comment
  RSA509436  Suaeda moquinii A. R. Roos 1950-8-7 s.n. Inyo Tecopa Hot Springs, ca. 2 mi. N of Tecopa. 427 Comment
  RSA592493  Cleomella obtusifolia J. C. Roos 1965-7-11 s.n. Inyo Death Valley Junction. Comment
  RSA659659  Rosa woodsii J. C. Roos 1948-7-4 s.n. Inyo Thorndykes Spring, Panamint Mtns. Comment
  RSA659660  Sibbaldia procumbens J. C. Roos 1937-8-8 535 Inyo Lone Pine Canyon. 3049 Comment
  RSA659688  Nitrophila mohavensis J. C. Roos 1954-7-18 6194 Inyo Amargosa Desert 3 miles NE of Death Valley Junction along Ash Meadows road 625 Comment
  RSA659718  Pericome caudata J. C. Roos 1956-8-29 s.n. Inyo Head of Death Valley Canyon, Panamint Mtns. Comment
  RSA662412  Chrysothamnus viscidiflorus J. C. Roos, A. R. Roos 1953-8-8 5933 Inyo Blue Bell Mine, Badger Flat, Inyo Mtns. 2683 Comment
  RSA71674  Astragalus lentiginosus var. semotus J. C. Roos, L. Roos 1951-8-9 5125 Inyo Reed Flat, White Mountains 3049 Comment
  RSA71677  Crepis intermedia J. C. Roos, L. Roos 1951-8-10 10500 Inyo Head of Wyman Cnayon, White Mts. 3201 Comment
  RSA71709  Peraphyllum ramosissimum J. C. Roos, L. Roos 1952-7-31 5880 Inyo NW of Cedar Flat, White Mountain 2439 Comment
  RSA71714  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
  RSA71725  Piptatherum micranthum J. C. Roos 1952-7-28 5840 Inyo White Mountains:Wyman Canyon 2683 Comment
  RSA71741  Eriogonum umbellatum var. dichrocephalum J. C. Roos 1952-7-30 5858 Inyo East side Reed Flat, White Mts. 3079 Comment
  RSA71745  Crepis intermedia J. C. Roos 1952-7-27 5832 Inyo Southeast rim Reed Flat, White Mountains. 3140 Comment
  RSA71746  Cymopterus cinerarius J. C. Roos, Lucille Roos 1952-7-27 5831 Inyo Ridge at S. E. rim Reed Flat, White Mountains. 3171 Comment
  RSA71749  Streptanthus cordatus J. C. Roos 1952-7-27 5835 Inyo Southeast rim Reed Flat, White Mountains. 3140 Comment
  RSA72078  Eragrostis mexicana subsp. virescens J. C. Roos 1951-8-12 5194 Inyo Big Pine along Big Pine Creek 1220 Comment
  RSA74566  Lupinus caespitosus J. C. Roos 1951-8-8 5108 Inyo Reed flat, White Mts. 3171 Comment
  RSA74570  Cirsium arizonicum J. C. Roos 1952-7-28 5850 Inyo Wyman Canyon, White Mts 2896 Comment
  RSA74600  Achnatherum webberi J. C. Roos, L. Roos 1952-7-25 5819 Inyo Between Westgard Pass and Reed Flat, White Mountains. 2439 Comment
  RSA79478  Elymus X hansenii J. C. Roos, A. R. Roos 1952-8-13 6016 Inyo Along crest of Inyo Mountains, 3 miles east of Badger Flat. Alt. 10600 ft. 3232 Comment
  RSA79485  Cercocarpus ledifolius J. C. Roos, A. R. Roos 1953-8-13 6009 Inyo Tamarack Canyon. 2744 Comment
  RSA79486  Salsola tragus J. C. Roos, A. Roos 1953-8-13 6008 Inyo Tamarack Canyon. 2744 Comment
  RSA79494  Brickellia multiflora J. C. Roos, A. R. Roos 1953-8-14 6032 Inyo Mazourka Canyon, Inyo Mts. 1768 Comment
  RSA79507  Poa secunda J. C. Roos 1953-8-13 6018 Inyo Crest of Inyo Mts, 3 miles E of Badger flat. 3308 Comment
  RSA79544  Erigeron clokeyi var. pinzliae J. C. Roos 1953-8-11 5989 Inyo 2 miles east of Blue Bell Mine, Inyo Mts. 2866 Comment
  RSA79555  Silene bernardina J. C. Roos, A. R. Roos 1953-8-11 5996 Inyo Loose alluvial soil on brushy flatss, 2.5 miles east of Blue Bell Mine. 2927 Comment
  RSA79617  Chrysothamnus viscidiflorus var. puberulus J. C. Roos 1953-8-8 5934 Inyo Blue Bell Mine, Badger flat, Inyo Mountains 2744 Comment
  RSA79621  Arenaria kingii subsp. compacta J. C. Roos, A. R. Roos 1953-8-7 5930 Inyo Badger Flat near Blue Mine, Inyo Mountains. Comment
  RSA79643  Chamaebatiaria millefolium J. C. Roos, A. R. Roos 1953-8-10 5981 Inyo Inyo Mountains, Mazourka Canyon. 2500 Comment
  RSA79701  Monardella odoratissima subsp. parvifolia J. C. Roos, A. R. Roos 1953-8-9 5951 Inyo Inyo Mountains: Near head of Tamarack Canyon 3049 Comment
  RSA79703  Eriogonum wrightii var. subscaposum J. C. Roos, A. R. Roos 1953-8-8 5943 Inyo Northwest end of Badger Flat, Inyo Mountains. 2683 Comment
  RSA79714  Leymus cinereus J. C. Roos, A. R. Roos 1953-8-9 5971 Inyo Southeast edge of Badger Flat, Inyo Mountains. 2622 Comment
  RSA79717  Elymus X hansenii J. C. Roos, A. R. Roos 1953-8-9 5968 Inyo Ridge southeast of Tamarack Canyon, Inyo Mountains 3232 Comment
  RSA85280  Centaurium exaltatum J. C. Roos, A. R. Roos 1950-8-7 4927 Inyo Tecopa, eastern Mohave desert. Comment
  RSA89527  Stanleya pinnata var. inyoensis J. C. Roos 1954-8-13 6209 Inyo N base of sand dunes at SE end Eureka Valley 915 Comment
  RSA89880  Chrysothamnus albidus J. C. Roos 1954-9-14 6235 Inyo Amargosa Desert 3 miles NE of Death Valley Junction along Ash Meadows Road. 625 Comment
  RSA89888  Cordylanthus tecopensis J. C. Roos 1954-9-14 6231 Inyo Amargosa River bottomland, 3 mi. S of Shoshone. 433 Comment
  RSA92169  Camissonia boothii subsp. desertorum J. C. Roos, Lucille Roos 1954-6-26 6165 Inyo Inyo Mountains, Mazourka Canyon 2439 Comment
  SD52861  Fendlerella utahensis J. C. Roos 1955-7-21 6486 Inyo On rocky north slope, Whitetop Peak, summit; Last Chance Mountains. 2530 Comment
  SD52875  Eriogonum brachypodum John C. Roos 1955-7-22 6498 Inyo Willow Creek, west slope Last Chance Mountains 1615 Comment
  SD52929  Ericameria parryi var. aspera J. C. Roos, A. R. Roos 1955-8-26 6551 Inyo On main ridge between Squaw Peak and Waucoba Mountain, Inyo Mountains. 2955 Comment
  SD52993  Proboscidea parviflora var. hohokamiana J. C. Roos, E. C. Jaeger 1955-7-23 6516 Inyo Abandoned field below mouth of Hunter Canyon, Saline Valley. 1150 Comment
  SD52996  Lepidospartum latisquamum J. C. Roos, A. R. Roos 1955-8-24 6539 Inyo Near Willow Spring, Last Chance Mountains. 1830 Comment
  SD53003  Eriastrum wilcoxii J. C. Roos 1955-7-23 6508 Inyo Soldier Flat at East base Waucoba Mts. Inyo Mts. 2194 Comment
  SD53008  Penstemon floridus John C. Roos 1955-6-18 6423 Inyo 2 miles NE of Willow Spring, Last Chance Mountains 2012 Comment
  SD53017  Streptanthus cordatus J. C. Roos 1955-6-17 6399 Inyo 2.0 miles northeast of Willow Spring, Last Chance Mountains. 2010 Comment
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Nov 4 2011
  SEINET14214732  Aristida purpurea J. C. Roos 1954-5-9 6108 Inyo Emigrant Canyon, Panamint Mtns 1220 Comment
  SEINET218257 Image available Philadelphus microphyllus var. stramineus John Roos 1941-1 46 Inyo Panamint Mts. East slope of Mt. Baldy. Comment
  UC1010177  Chrysothamnus viscidiflorus subsp. puberulus John and Lucille Roos 1951-8-8 5091 Inyo 3 mi nw Cedar Flat; White Mts. 2590 Comment
  UC1010223  Sphaeromeria cana John and Lucille Roos 1947-7-13 2877 Inyo summit Telescope Peak; Panamint Mts., summit Telescope Peak Comment
  UC1010245  Leptodactylon pungens J. C. and A. R. Roos 1953-8-13 6017 Inyo 3 mi e Badger Flat (crest of Inyo Mts.); Inyo Mts. 3261 Comment
  UC1010249  Chaetopappa ericoides J. C. and A. R. Roos 1953-8-11 5986 Inyo ridge 1.5 mi e of Blue Bell Mine (dry rocky e slope); Inyo Mts. 2865 Comment
  UC1010252  Festuca kingii J. C. and A. R. Roos 1953-8-11 6001 Inyo pass 3 mi e Blue Bell Mine (on trail to Side Hill Spring); Inyo Mountians 3108 Comment
  UC1010262  Ribes cereum J. C. and A. R. Roos 1953-8-9 5970 Inyo se Tamarack Canyon; Inyo Mts. 3230 Comment
  UC1010270  Chaetadelpha wheeleri John and Lucille Roos 1954-6-28 6174 Inyo se end of Eureka Valley 929 Comment
  UC1010276  Cordylanthus tecopensis J. C. and A. R. Roos 1954-6-13 6139 Inyo 3 mi ne Death Valley junction (along Ash Meadows road); Amargosa desert 624 Comment
  UC1010292  Almutaster pauciflorus J. C. and A. R. Roos 1950-8-7 4923 Inyo Tecopa Eastern Mohave Desert 426 Comment
  UC1010327  Ericameria albida John and Lucille Roos 1954-9-14 6235 Inyo 2.5 mi ne of Death Valley Junction (along Ash Meadows road); Amargosa Desert 624 Comment
  UC1010333  Ericameria parryi var. aspera J. C. and A. R. Roos 1953-8-9 5949 Inyo Inyo Mts., Tamarack Canyon 2987 Comment
  UC1023380  Poa secunda subsp. juncifolia John and Lucille Roos 1951-8-8 5117 Inyo se rim Reed Flat; White Mts Comment
  UC1023398  Achnatherum J. C. and A. R. Roos 1953-8-13 6014 Inyo 3 mi e Badger Flat; Crest of Inyo Mts. 3169 Comment
  UC1023404  Astragalus platytropis J. C. and A. R. Roos 1953-8-9 5961 Inyo near head Tamarack Canyon (Inyo Mts.); , near head Tamarack Canyon 3078 Comment
  UC1026578  Cyperus laevigatus John and Lucille Roos 1953-11-2 6042 Inyo Tecopa Hot Springs 426 Comment
  UC1042972  Nitrophila mohavensis John and Lucille Roos 1954-5-7 6079 Inyo along Ash Meadows road 3 mi ne Death Valley Junction; Amorgosa Desert 624 Comment
  UC1042983  Hesperostipa comata John and Lucille Roos 1954-6-26 6162 Inyo canyon at se end Badger Flat; Inyo Mts., Mazourka Canyon 2621 Comment
  UC1043014  Cordylanthus tecopensis John and Lucille Roos 1953-10-31 6033 Inyo 3 mi s Shoshone (along Amargosa River); Amargosa River 441 Comment
  UC1075868  Buddleja utahensis John C. Roos 1955-4-8 20570 Inyo s end of Eureka Valley e Eureka Valley sand dunes (Last Chance Mts., ne Inyo Co.); Last Chance Mts., s end of Eureka Valley e of sand dunes 1219 Comment
  UC1080597  Lupinus holmgrenianus John C. Roos 1955-5-15 6374 Inyo 2 mi ne Willow Spring (Last Chance Mts., almost on the Calif-Nevada State Line); Last Chance Mts., ne of Willow Spring 2042 Comment
  UC1080634  Oenothera californica subsp. eurekensis John C. Roos 1955-5-13 6362 Inyo mouth of Marble Canyon Eureka Valley (w side of valley) 1036 Comment
  UC1105693  Tridens muticus John C. Roos 1955-5-13 6339 Inyo e of Eureka Valley (w base of Last Chance Mountains); Last Chance Mountains 1219 Comment
  UC1117448  Dichanthelium acuminatum subsp. fasciculatum J. C. Roos 1955-7-23 6511 Inyo mouth of Beveridge Canyon e base Inyo Mts., Saline Valley (Saline Valley) 609 Comment
  UC1117608  Muhlenbergia porteri John C. Roos 1955-5-13 6341 Inyo e. Eureka Valley sand dunes (w. base Last Chance Mts.); Last Chance Mts. 1219 Comment
  UC1117610  Aristida purpurea var. nealleyi John C. Roos 1955-5-13 6338 Inyo e Eureka Valley sand dunes (w base of mts.); Last Chance Mts. 1219 Comment
  UC1117611  Bromus trinii John C. Roos 1955-5-13 6330 Inyo e of Eureka Valley (w base of Last Chance Mountains); Last Chance Mountains 1219 Comment
Read comments
Mar 27 2011
  UC1234664  Oxytropis borealis var. australis J. C. and A. R. Roos 1955-8-26 6557 Inyo summit Waucoba Mt.; Inyo Mtns. 3383 Comment
  UC1234682  Eriogonum nummulare J. C. Roos and E. C. Jaeger 1955-7-22 6503 Inyo Slodier Flat, e base Waucoba Mountain Inyo Mountains, Waucoba Mountain, Slodier Flat 2194 Comment
  UC1234820  Eriogonum deflexum var. baratum J. C. Roos 1955-7-22 6499 Inyo Willow Creek Last Chance Mountains, Willow Creek 1615 Comment
  UC1234825  Ericameria nana J. C. and A. R. Roos 1955-8-24 6538 Inyo summit ridge of mountains 3.5 mi s Willow Spring; Last Chance Mts. 2438 Comment
  UC1234826  Gilia ochroleuca subsp. ochroleuca J. C. Roos 1955-6-17 6411 Inyo 2 mi ne Willow Spring (Last Chance Mountains); , ne of Willow Spring 2011 Comment
  UC1234843  Ericameria nauseosa var. hololeuca J. C. and A. R. Roos 1955-8-24 6100 Inyo 0.2 mi e Willow Spring; Last Chance Mts. 1859 Comment
  UC1234848  Crepis intermedia J. C. Roos 1955-6-17 6401 Inyo 2 mi ne Willow Spring; Last Chance Mountains 2011 Comment
  UC1234873  Galium multiflorum J. C. Roos 1955-6-17 6419 Inyo 2 mi ne Willow Spring; Last Chance Mountains 2011 Comment
  UC1236221  Tricardia watsonii John C. Roos 1955-5-16 6388 Inyo Along Loretto Road 3 miles southwest of Loretto Mine, Inyo Mts. 1859 Comment
  UC1236229  Cryptantha flavoculata John C. Roos 1955-5-15 6378 Inyo 1 mi se Willow Springs; Last Chance Mts. 1950 Comment
  UC1236234  Astragalus serenoi var. shockleyi John C. Roos 1955-5-15 6372 Inyo 0.5 mi w Willow Spring (Last Chance Mts.); , w of Willow Spring 1767 Comment
  UC1236243  Camissonia pusilla John C. Roos 1955-5-15 6363 Inyo 0.5 mi w Willow Spring; Last Chance Mts. 1767 Comment
  UC1236254  Psorothamnus arborescens var. minutifolius John C. Roos 1955-5-13 6332 Inyo west base Last Chance Mountains, E of Eureka Valley sand dunes 1158 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
  UC1494273  Psathyrotes annua J. C. Roos 1965-9-18 Inyo near Crowley Point; Argus Mts. Comment
  UC234675  Hazardia brickellioides J. C. Roos 1955-7-23 6513 Inyo Beveridge Valley Saline Valley, east base Inyo Mountains 640 Comment
  UCD131344  Ericameria cooperi var. cooperi John Roos 1947-4-18 3471 Inyo around Dante's View. Comment
  UCD58503  Bromus porteri John Roos; Lucille Roos 1951-8-8 5095 Inyo Head of Wyman Canyon. White Mts. 3169 Comment
  UCD63881  Eragrostis mexicana subsp. virescens John and Lucille Roos 1951-8-12 5194 Inyo Big Pine, along Big Pine Creek. 1219 Comment
  UCR18586  Encelia actoni John C. Roos 1947-4-18 3461 Inyo Northern Mojave Desert, Pass, 10 mi west of Death Valley Junction Comment
  UCR18796  Tiquilia nuttallii John C. Roos 1937-8-6 1961 Inyo Sierra Nevada Mtns, Big Pine Comment
  UCR18886  Scopulophila rixfordii John C. Roos, L. Roos 1954-5-8 6097 Inyo Northern Mojave Desert, Grapevine Mountains, Titus Canyon, below Leadfield 1372 Comment
  UCR18894  Atriplex hymenelytra John C. Roos 1965-7-11 s.n. Inyo Northern Mojave Desert, Stovepipe Wells, Death Valley 0 Comment
  UCR18959  Cuscuta indecora John C. Roos 1965-9-18 s.n. Inyo Eastern Sierra Nevada Mtns/Owens Valley, Big Pine Comment
  UCR18960  Silene andersonii John C. Roos 1941-8-17 59 Inyo Northern Mojave Desert, Panamint Mountains 3319 Comment
  UCR18975  Astragalus gilmanii John C. Roos 1948-7-4 3898 Inyo Northern Mojave Desert, Panamint Mountains, Mahogany Flats 2470 Comment
  UCR18976  Cordylanthus tecopensis John C. Roos, A. R. Roos 1954-6-13 6139 Inyo Northern Mojave Desert, Amargosa Desert, 3 mi. NE of Death Valley Junction, along Ash Meadows road 625 Comment
  UCR19025  Camissonia claviformis John C. Roos, L. Roos 1954-5-9 6109 Inyo Northern Mojave Desert, Emigrant Canyon, Panamint Mtns 1220 Comment
  UCR19046  Kochia americana John C. Roos 1965-9-18 s.n. Inyo Northern Mojave Desert, Darwin Mesa [=Darwin Plateau] Comment
  UCR19137  Tidestromia oblongifolia John C. Roos 1965-7-11 s.n. Inyo Northern Mojave Desert, Stovepipe Wells, Death Valley 0 Comment
  UCR19216  Pinus balfouriana John C. Roos 1965-8-9 s.n. Inyo Sierra Nevada Mtns., Onion Valley, Independence Creek Comment
  UCR19279  Oryzopsis micrantha John C. Roos, L. Roos 1952-7-28 5840 Inyo White Mtns, Wyman Canyon 2683 Comment
  UCR19280  Stipa X bloomeri John C. Roos, A. R. Roos 1953-8-13 6014 Inyo Northern Mojave Desert, 3 mi east of Badger Flat, Inyo Mtns 3171 Comment
  UCR19477  Pellaea breweri John C. Roos 1947-7-13 2893 Inyo Northern Mojave /Great Basin Desert, Panamint Mountains, Death Valley National Monument [Park], Telescope Peak 3354 Comment
  UCR19537  Ericameria discoidea John C. Roos 1959-8-20 s.n. Inyo White Mtns., Reed Flat 3049 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
  UCR19736  Calochortus bruneaunis John C. Roos, L. Roos 1952-7-26 5823 Inyo White Mtns, east side of Reed Flat, at the head of Birch Creek 3049 Comment
  UCR20320  Chaenactis douglasii var. douglasii John C. Roos 1947-7-12 2897 Inyo Panamint Mtns., upper Wildrose Canyon, near Mahogany Flats 2409 Comment
  UCR20340  Cryptantha circumscissa John C. Roos, A. R. Roos 1954-6-11 6126 Inyo Northern Mojave Desert, Panamint Mountains, Mahogany Flats 2500 Comment
  UCR20395  Brickellia longifolia John C. Roos 1956-9-30 6603 Inyo Northern Mojave Desert, Panamint Mtns, Wildrose Cyn, at Wildrose [Ranger] Station Comment
  UCR20428  Calochortus panamintensis John C. Roos 1947-7-12 2900 Inyo Panamint Mtns., upper Wildrose Canyon, near Mahogany Flats 2409 Comment
  UCR20434  Keckiella rothrockii John C. Roos 1947-7-13 2884 Inyo Northern Mojave /Great Basin Desert, Panamint Mountains, east slope of Baldy [= Rogers?] Peak [near Arcane Meadow] Comment
  UCR20501  Leptodactylon pungens John C. Roos 1947-7-13 2891 Inyo Northern Mojave /Great Basin Desert, Panamint Mountains, east slope of Baldy [= Rogers?] Peak [near Arcane Meadow] Comment
  UCR20624  Elymus elymoides John C. Roos 1947-7-13 2889 Inyo Northern Mojave /Great Basin Desert, Panamint Mtns, Arcane Meadows, between Baldy [=Rogers?] and Telescope Peaks 3018 Comment
  UCR23401  Lomatium macdougalii John C. Roos 1955-6-17 6403 Inyo Northern Mojave Desert, 2 mi. NE of Willow Spring, Last Chance Mtns. 1835 Comment
  UCR23414  Amsonia tomentosa John C. Roos 1955-5-13 6349 Inyo Northern Mojave Desert, west base of Last Chance Mountains, east of Eureka Valley sand dunes 1280 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
  UCR23443  Descurainia pinnata John C. Roos 1955-4-7 6301 Inyo Saline Valley, mouth of Hunter Canyon 351 Comment
  UCR23449  Draba lemmonii John C. Roos 1937-8-8 1020 Inyo Sierra Nevada Mountains, Lone Pine Canyon, Whitney Pass 4116 Comment
  UCR23498  Oenothera deltoides subsp. eurekensis John C. Roos, P. A. Munz 1955-4-9 6318 Inyo Northeastern Mojave Desert, Eureka Valley 945 Comment
  UCR23665  Centaurium exaltatum John C. Roos 1965-7-11 s.n. Inyo Northern Mojave Desert, Tecopa 427 Comment
  UCR23702  Glossopetalon spinescens John C. Roos, L. Roos 1955-4-11 6321 Inyo Northern Mojave Desert, Inyo Mtns, Loretto Road above Loretto Mine, east side of range 1707 Comment
  UCR23718  Brickellia longifolia John C. Roos 1947-9-18 2792 Inyo Northern Mojave Desert, Panamint Mountains, Wildrose [Ranger] Station 1070 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
  UCR23765  Erigeron argentatus John C. Roos 1955-6-18 6424 Inyo Northeastern Mojave Desert, 2 mi. NE of Willow Spring, Last Chance Mtns 2012 Comment
  UCR23766  Erigeron aphanactis John C. Roos 1955-5-15 6380 Inyo Northeastern Mojave Desert, Willow Creek, Last Chance Mtns 1585 Comment
  UCR23786  Chrysothamnus albidus John C. Roos, L. Roos 1954-11-23 6259 Inyo Northern Mojave Desert, Lower Warm Spring, Saline Valley 427 Comment
  UCR23896  Haplopappus brickellioides John C. Roos 1955-8-23 6530 Inyo Last Chance Mtns., west base of Last Chance Mtns, east of Eureka Valley sand dunes 1220 Comment
  UCR23906  Astragalus layneae John C. Roos, L. Roos 1955-4-7 6300 Inyo Northern Mojave Desert, N end of Saline Valley near Waucoba Wash 1616 Comment
  UCR23909  Astragalus platytropis John C. Roos 1955-7-21 6481 Inyo Northeastern Mojave Desert, North slope of Whitetop [= Last Chance] Peak, Last Chance Mtns. 2500 Comment
  UCR23929  Lupinus shockleyi John C. Roos 1955-6-19 6434 Inyo Northern Mojave Desert, 1 mi. south of Willow Spring, Last Chance Mountains 1813 Comment
  UCR24061  Muhlenbergia porteri John C. Roos 1955-8-25 6546 Inyo Northern Mojave Desert, East slope of the Inyo Mountains, Loretto road, 1 mile west of Loretto Mine 1585 Comment
  UCR24065  Panicum capillare John C. Roos, E. C. Jaeger 1955-7-23 6518 Inyo Northern Mojave Desert, Saline Valley, below mouth of Hunter Canyon 351 Comment
  UCR24066  Lepidospartum latisquamum John C. Roos 1955-7-22 6500 Inyo Last Chance Mtns, Willow Creek, W slope Last Chance Mtns. 1616 Comment
  UCR24069  Poa bigelovii John C. Roos 1955-4-6 6285 Inyo Northern Mojave Desert, mouth of Beveridge Canyon, east side of Inyo Mtns. 671 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
  UCR24127  Tetradymia glabrata John C. Roos 1955-6-21 6469 Inyo Inyo Mtns, Narrow canyon along Loretto Rd. 1.5 mi SW of Loretto Mine, E slope of mtns 1677 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
  UCR24228  Aliciella latifolia John C. Roos 1955-5-13 6334 Inyo Northern Mojave Desert, west base of Last Chance Mountains, east of Eureka Valley sand dunes 1280 Comment
  UCR24264  Eriogonum fasciculatum subsp. polifolium John C. Roos 1955-5-13 6347 Inyo Northern Mojave Desert, west base of Last Chance Mountains, east of Eureka Valley sand dunes 1220 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
  UCR24333  Eriastrum sparsiflorum John C. Roos 1955-7-23 6508 Inyo Northern Mojave Desert, Soldier Flat [apparently =Whippoorwill Flat] at east base of Waucoba Mtn., Inyo Mountains 2195 Comment
  UCR24335  Gilia scopulorum John C. Roos 1955-4-6 6298 Inyo Northern Mojave Desert, Saline Valley, mouth of Craig Canyon, E base of Inyo Mtns. 534 Comment
  UCR24363  Artemisia ludoviciana John C. Roos 1961-9-2 s.n. Inyo Northern Mojave Desert, Inyo Mtns., below Side Hill Spring 2805 Comment
  UCR24397  Artemisia norvegica John C. Roos, A. R. Roos 1955-8-26 6555 Inyo Northern Mojave Desert, Inyo Mountains, summit of Waucoba Mtn 3384 Comment
  UCR24435  Mimulus bigelovii var. cuspidatus John C. Roos 1955-5-13 6326 Inyo Northern Mojave Desert, west base of Last Chance Mountains, east of Eureka Valley sand dunes 1280 Comment
  UCR24450  Penstemon newberryi John C. Roos 1965-8-9 s.n. Inyo Sierra Nevada Mountains, Heart Lake, Independence Creek 3293 Comment
  UCR24497  Penstemon calcareus John C. Roos 1955-5-13 6344 Inyo Northern Mojave Desert, west base of Last Chance Mtns, east of Eureka Valley sand dunes 1311 Comment
  UCR24553  Eragrostis mexicana subsp. virescens Alfred R. Roos 1937-8-4 10878 Inyo Lone Pine Comment
  UCR25372  Koeleria macrantha John C. Roos, A. R. Roos 1954-6-12 6134 Inyo Northern Mojave Desert, Panamint Mountains, Wildrose Peak 2652 Comment
  UCR25607  Stipa pinetorum John C. Roos, L. Roos 1951-8-8 5086 Inyo White Mtns, 3 mi NW of Cedar Flat 2591 Comment
  UCR25679  Erigeron clokeyi John C. Roos, A. R. Roos 1953-8-9 5953 Inyo Northern Mojave Desert Region, Inyo Mountains, near head of Tamarack Canyon 3049 Comment
  UCR25680  Arabis sparsiflora John C. Roos, A. R. Roos 1953-8-9 5962 Inyo Northern Mojave Desert Region, Inyo Mountains, near head of Tamarack Canyon 3049 Comment
  UCR25713  Cleome sparsifolia John C. Roos 1955-4-10 6319 Inyo Northern Mojave Desert, Eureka Valley dunes 945 Comment
  UCR25715  Dicoria canescens subsp. clarkiae John C. Roos, P. A. Munz 1955-4-9 6317 Inyo Northeastern Mojave Desert, Eureka Valley 945 Comment
  UCR26158  Erigeron clokeyi John C. Roos 1947-7-11 2905 Inyo Northern Mojave Desert, Panamint Mtns, Mahogany Flats 2470 Comment
  UCR26170  Camissonia campestris John C. Roos 1947-4-19 3488 Inyo Death Valley, Ryan Wash. east of Furnace Creek 701 Comment
  UCR26186  Mentzelia albicaulis John C. Roos 1947-4-18 3455 Inyo Northern Mojave Desert, Shoshone 457 Comment
  UCR26203  Aquilegia formosa John C. Roos 1948-7-4 3911 Inyo Panamint Mtns., Thorndike's Spring 2165 Comment
  UCR26241  Arceuthobium divaricatum John C. Roos 1947-7-12 2864 Inyo Northern Mojave Desert, Mahogany Flats, Panamint Mountains 2500 Comment
  UCR26262  Frasera puberulenta John C. Roos 1967-8-5 s.n. Inyo Northern Mojave Desert, Inyo Mountains, 1 mi. east of Badger Flat on the summit ridge 3201 Comment
  UCR26277  Koeleria macrantha John C. Roos, A. R. Roos 1953-8-9 5966 Inyo Inyo Mtns., Ridge of mountains, SE of head of Tamarack Canyon 3232 Comment
  UCR27470  Eriogonum nummulare John C. Roos, A. R. Roos 1954-8-15 6219 Inyo Northern Mojave Desert, Inyo Mtns., Whipoorwill (or Soldier) flat at east side of Waucoba Mtn. 2165 Comment
  UCR27935  Amelanchier covillei John C. Roos 1948-7-4 3914 Inyo Panamint Mtns., Thorndike's Spring 2165 Comment
  UCR30471  Poa secunda John C. Roos, A. R. Roos 1954-6-11 6127 Inyo Northern Mojave Desert, Panamint Mtns, head of Wildrose Canyon near Mahogany Flats 2470 Comment
  UCR30473  Salsola gobicola John C. Roos, A. R. Roos 1953-8-13 6008 Inyo Inyo Mtns, Tamarack Canyon 2744 Comment
  UCR30476  Streptanthus cordatus John C. Roos, A. R. Roos 1953-8-11 6007 Inyo Northern Mojave Desert, 3 mi. east of Badger Flat, Inyo Mtns 3049 Comment
  UCR30479  Cryptantha hoffmannii John C. Roos, A. R. Roos 1953-8-11 6005 Inyo Northern Mojave Desert, Canyon 3 mi east of Badger Flat, Inyo Mtns. 3110 Comment
  UCR30502  Cercocarpus ledifolius John C. Roos, A. R. Roos 1953-8-13 6009 Inyo Inyo Mtns, Tamarack Canyon 2744 Comment
  UCR30597  Salix gooddingii John C. Roos, A. R. Roos 1950-8-7 s.n. Inyo Northern Mojave Desert, China Ranch near Tecopa Pass 427 Comment
  UCR30600  Tidestromia oblongifolia John C. Roos, A. R. Roos 1950-8-7 s.n. Inyo Northern Mojave Desert, China Ranch near Tecopa Pass 427 Comment
  UCR30608  Helianthus annuus subsp. jaegeri John C. Roos, A. R. Roos 1950-8-7 4928 Inyo Northeastern Mojave Desert, Amargosa River Valley, Tecopa Hot Springs, c. 2 mi. north of Tecopa 427 Comment
  UCR31655  Poa secunda John C. Roos, L. Roos 1951-8-8 5117 Inyo SE rim Reed Flat, White Mtns. 3079 Comment
  UCR31660  Poa secunda John C. Roos, L. Roos 1954-5-7 6076 Inyo Amargosa Desert, 3 mi NE of Death Valley Junction, on Ash Meadows Road 625 Comment
  UCR31676  Aster pauciflorus John C. Roos, A. R. Roos 1950-8-7 4923 Inyo Northern Mojave Desert, Tecopa in Amargosa River Valley 427 Comment
  UCR54650  Suaeda moquinii 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
  UCSB37920  Pericome caudata Roos, John 1956-8-29 Inyo At the head of Death Valley Canyon in the Panamint Mtns. Comment
  UCSB46884  Triglochin concinna Roos, John 1965-7-11 Inyo Tecopa 426 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-BC252289  Eriogonum heermannii var. argense John Roos; Lucille Roos 1951-8-12 5191 Inyo Westgaard [Westgard] Pass, White Mts. 2194 Comment
  CAS-BOT-BC269884  Eriogonum nudum var. pubiflorum John Roos; Lucille Roos 1947-7-15 2871 Inyo Wild Rose [Wildrose] Canyon at Kilns, Panamint Mts. 2133 Comment
  CAS-BOT-BC279759  Chaetopappa ericoides J. C. Roos; A. R. Roos 1953-8-11 5986 Inyo Ridge 1 1/2 miles east of Blue Bell Mine, Inyo Mts. 2865 Comment
  CAS-BOT-BC292160  Dicoria canescens John Roos; Lucille Roos 1954-11-24 6266 Inyo Southeast end Eureka Valley 929 Comment
  CAS-BOT-BC308524  Hazardia brickellioides J. C. Roos; P. A. Munz 1955-4-8 6306 Inyo Last Chance Mtns. east of Eurka Valley sand dunes 1280 Comment
  CAS-BOT-BC330671  Acer glabrum var. diffusum A. R. Roos; J. C. Roos 1953-8-9 5946 Inyo Tamarack Canyon, Inyou Mts. 2712 Comment
  CAS-BOT-BC33658  Eriogonum glandulosum John C. Roos; A. R. Roos 1955-8-23 6527 Inyo At West base of Last Chance Mts., east of Eureka Valley sand dunes 1158 Comment
  CAS-BOT-BC377029  Townsendia scapigera J. C. Roos 1955-6-19 6436 Inyo East ridge one mile south of Willow Spring, Last Chance Mountains 2286 Comment
  CAS-BOT-BC413257  Oxytheca dendroidea subsp. dendroidea J. C. Roos; A. R. Roos 1954-8-14 6212 Inyo Flats 1 1/2 miles east of Andrews Mtn., Inyo Mts. 2545 Comment
  CAS-BOT-BC424468  Heuchera rubescens John Roos; Lucille Roos 1947-7-14 2850 Inyo Baldy Peak, Panamint Mts. 2651 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-BC60860  Stanleya elata J. C. Roos 1955-6-21 6465 Inyo Willow Creek, west slope Last Chance Mountains. 1615 Comment
  CLARK-A1528-1435  Cymopterus cinerarius John C. Roos 1952-7-27 5831 Inyo White Mountains 3169 Comment
  CLARK-A1528-1680  Brickellia microphylla John C. Roos, Lucille Roos 1954-11-24 6265 Inyo Inyo Mountains 1676 Comment
  CLARK-A1528-1740  Chrysothamnus teretifolius John C. Roos, Lucille Roos 1947-9-20 2811 Inyo Panamint Mountains 1523 Comment
  CLARK-A1528-1821  Erigeron divergens John C. Roos 1955-4-7 6302 Inyo Hunter Canyon 350 Comment
  CLARK-A1528-1948  Hulsea heterochroma John C. Roos 1961-8-9 Inyo Independence Creek 2682 Comment
  CLARK-A1528-2108  Stephanomeria pauciflora var. myrioclada John C. Roos, Alfred R. Roos 1954-8-13 6207 Inyo Eureka Valley 426 Comment
  CLARK-A1528-2203  Coldenia nuttallii John C. Roos 1937-8-6 1961 Inyo Big Pine Comment
  CLARK-A1528-2331  Lesquerella kingii John C. Roos 1952-7-26 5821 Inyo White Mountains 3047 Comment
  CLARK-A1528-2333  Lesquerella kingii John C. Roos 1947-7-12 2835 Inyo Panamint Range 2346 Comment
  CLARK-A1528-2385  Cleomella plocasperma John C. Roos 1937-8-6 1960 Inyo Big Pine Comment
  CLARK-A1528-2415  Symphoricarpos longiflorus John C. Roos 1947-7-12 2838 Inyo Panamint Mountains 2377 Comment
  CLARK-A1528-2497  Atriplex parryi John C. Roos 1965-7-11 Inyo Amargosa River Comment
  CLARK-A1528-2575  Chenopodium rubrum John C. Roos 1954-8-15 6223 Inyo Saline Valley 323 Comment
  CLARK-A1528-2596  Nitrophila occidentalis John C. Roos 1965-7-11 Inyo Death Valley Junction Comment
  CLARK-A1528-2728  Astragalus atratus John C. Roos 1955-4-8 6304 Inyo Last Chance Mountains 1219 Comment
  CLARK-A1528-2731  Astragalus calycosus John C. Roos 1947-7-11 2903 Inyo Panamint Mountains 2499 Comment
  CLARK-A1528-2943  Centaurium exaltatum John C. Roos, Alfred R. Roos 1950-8-7 4927 Inyo Tecopa 426 Comment
  CLARK-A1528-2994  Phacelia calthifolia John C. Roos, Lucille Roos 1954-3-27 6050 Inyo Death Valley 243 Comment
  CLARK-A1528-3017  Phacelia rotundifolia John C. Roos, Lucille Roos 1952-7-31 5878 Inyo White Mountains 2438 Comment
  CLARK-A1528-3115  Salvia funerea John C. Roos 1938-4-17 1621 Inyo Death Valley Park Nursery 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-A1528-5095  Astragalus kentrophyta subsp. implexus John C. Roos 1951-8-9 5124 Inyo White Mountains 3169 Comment
  CLARK-A1528-5148  Arenaria kingii var. glabrescens John C. Roos, Alfred R. Roos 1953-8-7 5930 Inyo Inyo Mountains 2743 Comment
  CLARK-A1528-5397  Atriplex phyllostegia John C. Roos 1954-5-6 6074 Inyo Amargosa River 518 Comment
  CLARK-A1528-5605  Haplopappus macronema John C. Roos 1959-8-20 Inyo White Mountains 3047 Comment
  LA210531  Cymopterus aboriginum John C. Roos; Lucille Roos 1954-5-8 6100 Inyo crest of Grapevine Mts, above Leadfield 1584 Comment
  POM265654  Cleome lutea J. C. Roos 1937-8-4 2347 Inyo Independence. Comment
  POM274215  Chrysothamnus nauseosus subsp. consimilis J. C. Roos 1947-9-19 2804 Inyo E face Baldy Peak, Panamint Mts Comment
  RSA0002412  Nitrophila mohavensis J. C. Roos, A. Roos 1954-6-13 6140 Inyo Open flats of Amargosa Desert 3 mi. NE of Death Valley Junction along Ash Meadow road. 625 Comment
  RSA0002413  Nitrophila mohavensis J. C. Roos, A. Roos, Suzanne O., Walter Wisura 1954-6-13 6140 Inyo Open flats of Amargosa Desert 3 miles NE of Death Valley Junction along Ash Meadows road 625 Comment
  RSA0017223  Gilia ochroleuca subsp. ochroleuca J. C. Roos 1955-6-17 6411 Inyo 2 miles north of Willow Spring, Last Chance Mountains. 2011 Comment
  RSA0060053  Philadelphus microphyllus var. stramineus J. C. Roos 1965-7-10 s.n. Inyo On the trail to Telescope Peak, near Arcane Meadow, Panamint Mtns. Comment
  RSA0062965  Heuchera rubescens var. alpicola J. C. Roos 1947-7-14 2850 Inyo North slope Baldy Peak, Panamint Mts. 2652 Comment
  RSA0062966  Heuchera rubescens var. alpicola J. C. Roos 1941-8-17 49 Inyo Panamint Mountains. 3201 Comment
  RSA0105143  Lomatium foeniculaceum subsp. inyoense J. C. Roos, A. R. Roos 1953-8-9 5964 Inyo upper Tamarack Canyon, Inyo Mts. 3110 Comment
  RSA0110944  Phacelia curvipes J. C. Roos 1955-6-17 6417 Inyo Two miles northeast of Willow Springs, Last Chance Mountains. 2012 Comment
  RSA0117778  Mentzelia oreophila A. R. Roos, J. C. Roos 1954-6-11 6125 Inyo Wild Rose Canyon, Panamint Mts. 976 Comment
  RSA0120060  Eriastrum eremicum subsp. eremicum J. C. Roos 1947-7-15 2825 Inyo Darwin Mesa. Comment
  RSA105015  Astragalus coccineus J. C. Roos 1955-5-16 6392 Inyo Waucoba road, 6 miles east of Big Pine, west side Inyo Mtns. 1494 Comment
  RSA105024  Gilia scopulorum J. C. Roos 1955-5-13 6328 Inyo West base Last Chance Mountains east of Eureka Valley sand dunes. 1159 Comment
  RSA105031  Erigeron aphanactis var. aphanactis J. C. Roos 1955-5-15 6380 Inyo Willow Creek. 1585 Comment
  RSA105035  Lepidium lasiocarpum var. lasiocarpum J. C. Roos 1955-5-13 6333 Inyo West base Last Chance Mountains, east of Eureka Valley sand dunes 1220 Comment
  RSA155654  Eriogonum esmeraldense J. C. Roos, A. R. Roos 1955-8-26 6549 Inyo East side of saddle between Sqauw Peak and Waucoba Mt., Inyo Mountains. Comment
  RSA155694  Corispermum villosum J. C. Roos 1955-6-21 6468 Inyo West side Eureka Valley at mouth of Marble Canyon. 1037 Comment
  RSA155704  Penstemon rostriflorus J. C. Roos 1955-7-21 6493 Inyo Last Chance Mountains 1miles south of Willow Spring 2073 Comment
  RSA265632  Allenrolfea occidentalis J. C. Roos 1937-8-6 972 Inyo Bishop, Owens Valley Comment
  RSA40543  Eriogonum nudum var. westonii J. C. Roos 1947-7-15 2871 Inyo Wildrose Canyon at Kilns, Panamint Mountains. 1433 Comment
  RSA44873  Mentzelia dispersa J. C. Roos 1948-7-4 3897 Inyo East slope of Baldy Peak, Panamint Mts., Mojave Desert. 2561 Comment
  RSA450417  Brickellia incana J. C. Roos 1961-10-22 s.n. Inyo West side of Owens Lake, near Columbia Southern Chemical Company. Comment
  RSA48872  Pluchea odorata J. C. Roos 1949-9-3 4652 Inyo E end of Tecopa oasis. 457 Comment
  RSA658428  Eriogonum latens J. C. Roos 1962-8-25 s.n. Inyo West ridge frmn Waucoba Mtn. Inyo Mtns. Comment
  RSA71705  Eriogonum ovalifolium var. ovalifolium J. C. Roos 1952-7-31 5877 Inyo 1 mile south of Reed Flat, White Mountains. 2835 Comment
  RSA71706  Eriogonum ovalifolium J. C. Roos, Lucille Roos 1952-7-31 5877 Inyo 1 mile south of Reed Flat, White Mountains. 2835 Comment
  RSA71729  Halimolobos jaegeri J. C. Roos 1952-7-28 5844 Inyo White Mountains:Wyman Canyon 2683 Comment
  RSA71774  Arenaria kingii subsp. compacta J. C. Roos, L. Roos 1951-8-8 5118 Inyo Ridge 1 mile south of Reed Flat, White Mountains. Comment
  RSA92059  Eriogonum intrafractum J. C. Roos, Roos 1954-5-8 6104 Inyo Titus Canyon, Grapevine Mountains 1280 Comment
  RSA92068  Triglochin maritima J. C. Roos, L. Roos 1954-5-7 6078 Inyo Amargosa Desert 3 miles NE of Death Valley Junction, along Ash Meadows road. 625 Comment
  RSA92166  Erigeron aphanactis var. aphanactis J. C. Roos, L. Roos 1954-6-28 6170 Inyo Loretto Road, above Loretto Mine. 1646 Comment
  RSA92178  Ranunculus cymbalaria var. saximontanus J. C. Roos, L. Roos 1954-6-24 6151 Inyo Side Hill Spring 2866 Comment
  RSA92338  Abronia turbinata J. C. Roos, L. Roos 1954-6-28 6179 Inyo North base of sand dunes at SE end of Eureka Valley 915 Comment
  RSA92734  Cordylanthus tecopensis J. C. Roos 1954-7-18 6196 Inyo Amargosa Desert 3 miles NE of Death Valley Junction along Ash Meadows Road. 625 Comment
  SD52865  Eriogonum deflexum var. baratum John C. Roos 1955-7-21 6489 Inyo ridge at crest of Last Chance Mountains 2.5 miles south of Willow Spring 2347 Comment
  SD52867  Eriogonum baileyi var. baileyi John C. Roos, Alfred R. Roos 1955-7-21 6496 Inyo Willow Spring, Last Chance Mountains 1829 Comment
  SD52871  Symphyotrichum eatonii J. C. Roos, A. R. Roos 1955-8-28 6570 Inyo West side Owens Lake, 3 miles north of Olancha. 1095 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
  SD52998  Stephanomeria exigua subsp. coronaria J. C. Roos, E. C. Jaeger 1955-7-21 6477 Inyo Last Chance Mountains, 2.0 miles northeast of Willow Spring. 2010 Comment
  SD53006  Cordylanthus kingii subsp. helleri John C. Roos, Alfred R. Roos 1955-8-24 6536 Inyo Last Chance Mts. 1 mile south of Willow Spring 2255 Comment
  SEINET14198778  Aristida purpurea J. Roos, L. Roos 1954-5-8 6106 Inyo Titus Canyon below Dlare Spring, Grapevine Mtns. Comment
  UC1010183  Arenaria kingii var. glabrescens John and Lucille Roos 1951-8-8 5118 Inyo ridge 1 mi. s Reed Flat; White Mts. 2956 Comment
  UC1042996  Chylismia heterochroma J. C. and A. R. Roos 1952-8-14 6213 Inyo 0.4 mi n The Narrows; Inyo Mts., Marble Canyon 2316 Comment
  UC1042999  Chenopodium rubrum J. C. and A. R. Roos 1954-8-15 6223 Inyo Saline Valley 323 Comment
  UC1043002  Suaeda calceoliformis John and Lucille Roos 1954-9-14 6236 Inyo 2.7 mi ne Death Valley Junction (along Ash Meadows road); Amargosa Desert 624 Comment
  UC1234814  Cordylanthus kingii subsp. helleri J. C. Roos 1955-7-20 6475 Inyo 2 mi e Willow Springs (at boundary marker #80); Last Chance Mts. 2133 Comment
  UC1234834  Eriogonum baileyi var. baileyi J. C. and A. R. Roos 1955-8-24 6535 Inyo 2 mi ne Willow Spring; Last Chance Mts. 2011 Comment
  UC1236207  Symphyotrichum bracteolatum J. C. and A. R. Roos 1955-8-28 6570 Inyo 3 mi n on w side of Owens Lake Olancha; Owens Lake 1091 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
  UCSB37374  Chloropyron tecopense Roos, John; Roos, Lucille 1953-10-31 Inyo Amargosa River 3 miles south of Shoshone 441 Comment
  UCSB38065  Heuchera rubescens Roos, John 1965-7-10 Inyo Telegraph Peak, Panamint Mtns 3048 Comment
  CAS-BOT-BC130906  Deinandra arida J. C. Roos 1969-5-10 s.n. Kern Red Rock Canyon Comment
  CLARK-A1528-2499  Atriplex phyllostegia John C. Roos 1969-5-10 Kern Red Rock Canyon Comment
  CLARK-A1528-2714  Stillingia paucidentata John C. Roos 1969-5-10 Kern Red Rock Canyon Comment
  CLARK-A1528-3199  Calochortus striatus John C. Roos 1969-5-10 Kern Red Rock Canyon Comment
  CLARK-A1528-3305  Ludwigia repens John C. Roos 1937-8-10 1043 Kern Isabella Comment
  CLARK-A1528-3697  Eriogonum davidsonii John C. Roos 1937-8-10 1815 Kern Walker Pass Comment
  CLARK-A1528-4889  Quercus wislizeni var. frutescens John C. Roos 1937-8-11 481 Kern Tehachapi Pass Comment
  RSA450462  Bromus berteroanus J. C. Roos 1969-5-10 s.n. Kern An alkaline seep in Red Rock Canyon. Comment
  UCR24089  Endolepis covillei John C. Roos 1969-5-10 s.n. Kern Western Mojave Desert, Red Rock Canyon 793 Comment
  UCR24147  Zigadenus brevibracteatus John C. Roos 1969-5-10 s.n. Kern Western Mojave Desert, Red Rock Canyon 793 Comment
  UCR24431  Mimulus palmeri John C. Roos 1969-5-10 s.n. Kern Western Mojave Desert, Red Rock Canyon 793 Comment
  RSA48848  Aster frondosus J. C. Roos 1949-11-27 4703 Kern Monolith Dry Lake 1204 Comment
  RSA52770  Atriplex prostrata J. C. Roos 1949-11-27 4701 Kern Monolith Dry Lake 1204 Comment
  CAS-BOT-BC108879  Ribes divaricatum var. parishii John Roos; Lucille Roos 1951-3-10 5032 Los Angeles San Gabriel River at Whittier Narrows. Flowers maroon. 60 Comment
  CAS-BOT-BC173433  Ribes malvaceum J. C. Roos 1966-2-11 s.n. Los Angeles Claremont 304 Comment
  CAS-BOT-BC206368  Malacothamnus fremontii J. C. Roos 1951-7-30 5072 Los Angeles Big Rock Creek, San Gabriel Mts. 1676 Comment
  CLARK-A1528-1099  Artemisia tridentata subsp. parishii John C. Roos 1946-11-23 3158 Los Angeles Placerita Canyon 365 Comment
  CLARK-A1528-1380  Mollugo verticillata John C. Roos 1939-6-21 920 Los Angeles Pasadena Comment
  CLARK-A1528-1540  Ambrosia psilostachya John C. Roos 1947-7-21 Los Angeles Lancaster Comment
  CLARK-A1528-1595  Artemisia tridentata subsp. parishii John C. Roos 1949-11-24 4699 Los Angeles Lancaster Comment
  CLARK-A1528-1870  Haplopappus acradenius John C. Roos 1947-9-18 2791 Los Angeles Comment
  CLARK-A1528-1953  Hulsea vestita John C. Roos 1937-7-16 2469 Los Angeles San Gabriel Mountains 2895 Comment
  CLARK-A1528-2150  Conyza bonariensis John C. Roos 1942-9-26 1713 Los Angeles Westwood Village Comment
  CLARK-A1528-2328  Lepidium pinnatifidum John C. Roos 1956-6-15 Los Angeles Westwood Comment
  CLARK-A1528-2356  Tropidocarpum gracile John C. Roos 1937-3-25 1335 Los Angeles Comment
  CLARK-A1528-2614  Cornus sericea subsp. sericea John C. Roos 1950-7-15 4851 Los Angeles San Gabriel Mountains 60 Comment
Read comments
Dec 2 2014
  CLARK-A1528-2645  Zauschneria cana John C. Roos 1941-10-11 866 Los Angeles Santa Monica Mountains Comment
  CLARK-A1528-3003  Phacelia davidsonii John C. Roos 1937-5-31 750 Los Angeles San Gabriel Mountains Comment
  CLARK-A1528-3007  Phacelia fremontii John C. Roos 1937-5-31 668 Los Angeles Wrightwood Comment
  CLARK-A1528-3164  Mentzelia gracilenta John C. Roos 1937-3-25 543 Los Angeles Lancaster Comment
  CLARK-A1528-3325  Camissonia cheiranthifolia Alfred R. Roos 1956-5-22 Los Angeles 9 Comment
  CLARK-A1528-3414  Meconella denticulata John C. Roos 1942-5-23 1069 Los Angeles San Gabriel Mountains 0 Comment
  CLARK-A1528-3730  Eriogonum davidsonii John C. Roos 1937-7-18 403 Los Angeles San Antonio Canyon 914 Comment
  CLARK-A1528-3901  Ceanothus spinosus Alfred R. Roos 1948-4-9 Los Angeles Santa Monica Mountains Comment
  CLARK-A1528-4106  Lithophragma heterophyllum John C. Roos 1942-4-18 1083 Los Angeles San Gabriel Mountains Comment
Read comments
Aug 22 2016
  CLARK-A1528-4379  Solanum xanti var. intermedium John C. Roos 1937-6-29 1485 Los Angeles Malibu Beach Comment
  CLARK-A1528-4571  Chloris gayana John C. Roos, Alfred R. Roos 1950-9-16 4987 Los Angeles Los Angeles 60 Comment
  CLARK-A1528-4726  Melica imperfecta John C. Roos 1937-3-25 442 Los Angeles Lancaster Comment
  CLARK-A1528-4924  Astragalus douglasii var. douglasii John C. Roos 1937-5-31 2045 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-A1528-5591  Poa secunda John C. Roos, Lucille Roos 1951-5-27 5055 Los Angeles Antelope Valley 701 Comment
  CLARK-A1528-5599  Polystichum munitum John C. Roos 1937-7-3 Los Angeles La Canada Comment
  CLARK-A1528-7811  Hoffmannseggia falcaria John C. Roos 1940-8-31 241 Los Angeles Monterey Park Comment
  CLARK-A1528-7870  Convolvulus althaeoides John C. Roos 1950-5-9 4793 Los Angeles Los Angeles 91 Comment
  CLARK-A1528-861  Mimulus bigelovii John C. Roos 1941-4-12 195 Los Angeles Palmdale Comment
  OBI30462  Antirrhinum multiflorum J. C. Roos 1947-5-17 3636 Los Angeles Placerita Cyn, E of Newhall Comment
  OBI40201  Agrostis stolonifera John C. Roos 1950-9-16 4988 Los Angeles Santa Monica Blvd & Midvale Ave, Los Angeles 61 Comment
  POM262945  Mimulus fremontii J. C. Roos 1941-4-12 195 Los Angeles Palmdale. Comment
  POM263063  Malacothamnus davidsonii J. C. Roos 1937-7-7 331 Los Angeles Near San Fernando Comment
  POM263143  Galium angustifolium subsp. gabrielense J. C. Roos 1937-7-18 400 Los Angeles Upper San Antonio Canyon. Comment
  POM265629  Atriplex coulteri J. C. Roos 1937-6-29 2156 Los Angeles Malibu Beach. Comment
  POM265634  Eriogonum cinereum J. C. Roos 1942-9-26 1727 Los Angeles Sea bluffs, Santa Monica. Comment
  POM266276  Bromus grandis J. C. Roos 1942-5-23 1060 Los Angeles Santa Anita Canyon, San Gabriel Mountains. Comment
  POM266313  Hulsea vestita subsp. parryi J. C. Roos 2469 Los Angeles north slope of Mt. San Antonio 2895 Comment
  POM266622  Polypogon viridis J. C. Roos 1942-9-12 1718 Los Angeles Westwood Village, Los Angeles. Comment
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Dec 6 2011
  POM266627  Achnatherum coronatum J. C. Roos 1942-3-7 1002 Los Angeles Mouth of Big Tujunga Canyon, west end of San Gabriel Mts. Comment
  POM266898  Eleusine indica J. C. Roos 1942-10-1 1735 Los Angeles Los Angeles. Comment
  RSA450062  Sarcodes sanguinea J. C. Roos 1966-6-15 s.n. Los Angeles N. slope of Mount Baden-Powell near laurel Spring 2378 Comment
  RSA469845  Navarretia hamata subsp. hamata A. R. Roos 1922-11-8 s.n. Los Angeles San Gabriel Mountians: Lytle Creek Canyon 915 Comment
Read comments
Aug 18 2012
  RSA48852  Artemisia tridentata subsp. parishii J. C. Roos 1949-11-24 4699 Los Angeles 8 or 9 miles W of Lancaster. 732 Comment
  RSA89978  Digitaria ciliaris J. C. Roos, A. R. Roos 1950-9-16 4989 Los Angeles Los Angeles. 61 Comment
  UC1010241  Ribes divaricatum var. parishii John and Lucille Roos 1951-3-10 5032 Los Angeles Whittier Narrows San Gabriel River 60 Comment
  UC1023432  Digitaria ciliaris J. C. and A. R. Roos 1950-9-16 4989 Los Angeles 1700 Westwood Blvd. Los Angeles 60 Comment
  UCR23349  Aspidotis californica John C. Roos 1942-3-21 1094 Los Angeles San Gabriel Mtns, Santa Anita Canyon 244 Comment
  UCR23357  Azolla filiculoides John C. Roos 1942-3-7 1009 Los Angeles San Gabriel Mtns., Big Tujunga Canyon 457 Comment
  UCR23642  Arbutus menziesii John C. Roos 1942-3-21 1095 Los Angeles San Gabriel Mtns, Santa Anita Canyon 244 Comment
  UCR23685  Triodanis biflora John C. Roos 1942-5-23 1068 Los Angeles San Gabriel Mtns., Santa Anita Canyon Comment
  UCR23905  Glycyrrhiza lepidota John C. Roos 1942-6-6 1064 Los Angeles Western Transverse Range, Placerita Canyon near Newhall 610 Comment
  UCR24086  Melica stricta John C. Roos 1947-5-31 3665 Los Angeles San Gabriel Mtns., near Jackson Lake 1829 Comment
  UCR24175  Dudleya cymosa subsp. minor John C. Roos 1942-5-23 1062 Los Angeles San Gabriel Mtns., Near Chantry Flats 671 Comment
  UCR24293  Stipa cernua John C. Roos 1945-3-14 s.n. Los Angeles Los Angeles, Olympic Blvd., west of Fox Studios Comment
  UCR24361  Ambrosia psilostachya John C. Roos 1942-9-28 1716 Los Angeles Beverly Blvd., Los Angeles 122 Comment
  UCR25117  Muhlenbergia californica John C. Roos 1951-7-30 5075 Los Angeles San Gabriel Mtns., Big Rock Creek, north of Mt. Baden Powell 1982 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
  UCR26136  Gutierrezia microcephala John C. Roos, Mrs. S. A. Crooks 1946-8-20 2928 Los Angeles San Gabriel Mtns., Big Rock Springs 1341 Comment
  UCR26221  Salvia leucophylla John C. Roos 1947-5-17 3630 Los Angeles Placerita Canyon, east of Newhall Comment
  UCR26254  Asclepias californica John C. Roos 1937-5-31 742 Los Angeles southern Mojave Desert, near Littlerock Comment
  UCR27547  Symphoricarpos parishii John C. Roos 1947-5-31 3662 Los Angeles San Gabriel Mtns., near Jackson Lake 1829 Comment
  UCSB38061  Ribes californicum var. hesperium Roos, J. 1966-2-4 Los Angeles Claremont Comment
  CLARK-A1528-1426  Apium leptophyllum John C. Roos 1937-4-21 Los Angeles Claremont Comment
  CLARK-A1528-1519  Bloomeria crocea John C. Roos 1947-5-11 3606 Los Angeles Pomona Comment
  CLARK-A1528-1762  Chrysanthemum carinatum Alfred R. Roos 1955-5-7 Los Angeles El Segundo Comment
  CLARK-A1528-2049  Chrysanthemum carinatum Alfred R. Roos 1956-5-23 Los Angeles El Segundo Comment
  CLARK-A1528-2958  Erodium moschatum John C. Roos 1943-3-7 2642 Los Angeles Santa Monica Comment
  CLARK-A1528-3897  Ceanothus oliganthus John C. Roos 1942-3-7 1106 Los Angeles La Canada Comment
  CLARK-A1528-3976  Cercocarpus betuloides John C. Roos 1942-3-7 1104 Los Angeles San Gabriel Mountains Comment
  CLARK-A1528-4887  Phacelia imbricata John C. Roos 1947-5-17 3628 Los Angeles Placerita Canyon Comment
  CLARK-A1528-4939  Lomatium utriculatum John C. Roos 1937-3-25 1676 Los Angeles Lancaster Comment
  HSC78509  Hedypnois cretica A. R. Roos 1954-5-17 Los Angeles Hollywood, near North Kenmore & Oakdale Streets. 91 Comment
  POM263281  Mentzelia veatchiana J. C. Roos 1937-3-25 543 Los Angeles 12 miles west of Lancaster Comment
  POM266305  Bidens pilosa J. C. Roos 1942-9-12 1721 Los Angeles parkways, Santa Monica Comment
  RSA0038250  Trifolium dubium A. R. Roos 1954-5-29 s.n. Los Angeles Hollywood parking lot. Comment
  RSA662432  Descurainia sophia A. R. Roos 1954-3-4 s.n. Los Angeles 5001 Gaviota, Encino. Comment
  RSA85108  Medicago lupulina J. C. Roos 1952-4-30 5604 Los Angeles Edge of lawn, March Air Force Base 488 Comment
  UCSB37381  Soliva sessilis Roos, Alfred 1958-5-16 Los Angeles Lawn of the Ambassador Hotel, Wilshire Blvd., Los Angeles Comment
  CLARK-A1528-2792  Brodiaea coronaria John C. Roos, Lucille Roos 1951-5-27 5050 Mariposa 1005 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
  RSA78364  Orthocarpus attenuatus J. C. Roos 1951-5-26 5036 Mariposa Hills about 7 miles east of Mariposa. 1037 Comment
  UCR19735  Arenaria douglasii John C. Roos, L. Roos 1951-5-27 5054 Mariposa Sierra Nevada Mtns., hills about 8 miles east of Mariposa 1006 Comment
  UCR24035  Melica stricta John C. Roos 1942-7-1 1256 Mariposa Sierra Nevada Mtns., Yosemite National Park, on old trail north of Nevada Falls Comment
  UCR24173  Sedum obtusatum John C. Roos 1942-6-25 1748 Mariposa Sierra Nevada Mtns., Yosemite National Park, top of Half Dome 2683 Comment
  UCR24240  Linanthus montanus John C. Roos, L. Roos 1951-5-26 5039 Mariposa Sierra Nevada Mtns, hills about 7 miles east of Mariposa 1037 Comment
  UCR25162  Brodiaea elegans subsp. elegans John C. Roos, L. Roos 1951-5-27 5050 Mariposa Sierra Nevada Mtns., hills about 8 miles east of Mariposa 1006 Comment
  UCR25190  Melica californica John C. Roos 1951-5-27 5046 Mariposa Sierra Nevada Mtns., hills about 8 miles east of Mariposa 1006 Comment
  UCR25202  Antennaria rosea John C. Roos 1942-6-26 1262 Mariposa Sierra Nevada Mtns., Yosemite Nat. Park, Camp 14 [=Lower Pines Campground, Yosemite Valley] 1213 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
  CAS-BOT-BC484158  Brodiaea elegans var. elegans John Roos; Lucille Roos 1951-5-27 5050 Mariposa Hills about 8 miles east of Mariposa 1005 Comment
  RSA648016  Aesculus californica Roos 1958-6-20 s.n. Mariposa Paulson Ranch-Mariposa. Comment
  RSA457401  Anthoxanthum odoratum subsp. odoratum J. C. Roos 1957-7-1 6628 Mendocino Happy Valley, Albion 9 Comment
  RSA662535  Deschampsia holciformis J. C. Roos 1957-7-2 6638 Mendocino Point Arena, on the coast. Comment
  UCR23591  Drosera rotundifolia John C. Roos, D. V. Hemphill 1957-7-1 6624 Mendocino Little River Comment
  UCSB45593  Castilleja ambigua Roos, John 1957-7-2 Mendocino Point Arena Lighthouse 2024 Comment
  CLARK-A1528-1766  Chrysanthemum segetum John C. Roos, D. V. Hemphill 1957-7-1 6626 Mendocino Comment
  CAS-BOT-BC13223  Agoseris monticola John Roos; Lucille Roos 1951-8-11 5172 Mono Campito Meadow, White Mountains 3322 Comment
  CAS-BOT-BC274394  Leucopoa kingii John Roos; Lucille Roos 1952-7-30 5873 Mono Crooked Creek, White Mts. 3078 Comment
  CAS-BOT-BC293268  Ericameria suffruticosa John Roos; Lucille Roos 1951-8-8 5097 Mono Big Prospector Meadow, White Mts. 3200 Comment
  CAS-BOT-BC297089  Erigeron compositus John Roos; Lucille Roos 1952-7-30 5876 Mono Big Prospector meadow at head of Crooked Creek, White Mts. 3200 Comment
  CLARK-A1528-1562  Artemisia cana John C. Roos, Lucille Roos 1952-7-30 5865 Mono White Mountains 2895 Comment
  CLARK-A1528-3197  Smilacina racemosa subsp. amplexicaulis John C. Roos 1960-7-4 Mono White Mountains Comment
  CLARK-A1528-3456  Polemonium chartaceum John C. Roos, Lucille Roos 1951-8-10 5148 Mono White Mountains 4297 Comment
  CLARK-A1528-3636  Eriogonum deflexum John C. Roos 1937-8-9 1010 Mono Walker Pass Comment
  CLARK-A1528-3751  Oxyria digyna John C. Roos 1951-8-10 5150 Mono White Mountains 4023 Comment
  CLARK-A1528-4183  Castilleja nana John C. Roos 1960-7-4 Mono White Mountains Comment
  CLARK-A1528-4274  Mimulus rubellus John C. Roos, Lucille Roos 1951-8-10 5154 Mono White Mountains 4023 Comment
  CLARK-A1528-4698  Koeleria cristata John C. Roos, Lucille Roos 1951-8-10 5157 Mono White Mountains 3962 Comment
  NY1144044  Trisetum spicatum J. C. Roos 1951-8-10 5145 Mono White Mountains, east face White Mountain Peak. 4176 Comment
  RSA45493  Ericameria bloomeri J. C. Roos, L. Roos 1948-9-7 3990 Mono Crestview. Comment
  RSA71381  Lewisia glandulosa J. C. Roos 1951-8-10 5153 Mono Flats 1 mile SE of White Mountain Peak, White Mountains. 4024 Comment
  RSA71383  Androsace septentrionalis var. subumbellata J. C. Roos 1951-8-10 5155 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
  RSA71397  Pyrrocoma apargioides J. C. Roos, Lucille Roos 1951-8-11 5169 Mono Campito Meadow, White Mountains. 3323 Comment
  RSA71690  Arabis lemmonii J. C. Roos, L. Roos 1951-8-10 5144 Mono East face White Mtn. Peak, White Mountains. 4146 Comment
  RSA71703  Potentilla pensylvanica J. C. Roos, L. Roos 1952-7-30 5875 Mono Crooked Creek, White mountains 3079 Comment
  RSA71754  Erigeron clokeyi J. C. Roos, L. Roos 1951-8-8 5100 Mono Big Prospector Meadow, White Mountains. 3201 Comment
  RSA71790  Penstemon heterodoxus subsp. heterodoxus J. C. Roos, L. Roos 1951-8-8 5096 Mono Big Prospector Meadow, White Mountains. 3201 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
  UC1010191  Draba oligosperma var. oligosperma John and Lucille Roos 1951-8-10 5151 Mono 1 mi se White Mtn Peak; White Mts., se of White Mtn Peak 4023 Comment
  UC1010195  Solidago multiradiata John and Lucille Roos 1951-8-10 5162 Mono ne face Sheep Mountain (White Mountains); , ne face Sheep Mountain 3505 Comment
  UC1023385  Silene menziesii John and Lucille Roos 1952-7-30 5866 Mono Crooked Creek , Crooked Creek (White Mts.) 2865 Comment
  UCR19195  Aster occidentalis John C. Roos 1952-7-30 5863 Mono White Mountains, along Crooked Creek 2835 Comment
  UCR19273  Pinus longaeva 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-BC271309  Koeleria pyramidata John Roos; Lucille Roos 1952-7-30 5869 Mono Crooked Creek, White Mountains 3048 Comment
  CLARK-A1528-1999  Machaeranthera canescens John C. Roos 1951-8-11 5182 Mono White Mountains 3200 Comment
  CLARK-A1528-5636  Lappula floribunda John C. Roos 1937-8-5 1841 Mono White Mountains Comment
  RSA0005473  Monardella linoides subsp. sierrae J. C. Roos 1960-7-4 s.n. Mono Crooked Creek, White Mtns. Comment
  RSA0125063  Senecio integerrimus var. exaltatus John C. Roos, Lucille Roos 1952-7-30 5870 Mono Crooked Creek, White Mts. 3049 Comment
  RSA659603  Mimulus primuloides J. C. Roos 1960-7-4 s.n. Mono Crooked Creek, White Mtns. Comment
  RSA71402  Phacelia hastata subsp. hastata J. C. Roos, L. Roos 1951-8-11 5175 Mono East slope of Sheep Mountain, White Mountains. 3476 Comment
  RSA71698  Cystopteris fragilis J. C. Roos, Lucille Roos 1952-7-30 5871 Mono Crooked Creek, White Mountains 3049 Comment
  RSA72069  Machaeranthera canescens var. canescens J. C. Roos, L. Roos 1951-8-11 5182 Mono Big Prospector Meadow, White Mountains. 3201 Comment
  RSA74569  Gentianella amarella J. C. Roos, L. Roos 1952-7-30 5864 Mono Crooked Creek, White Mountains. 2835 Comment
  UC1010199  Antennaria rosea John and Lucille Roos 1951-8-11 5176 Mono Sheet Mtn. (e slope) White Mts., Sheet Mtn. 3505 Comment
  POM301545  Arctostaphylos andersonii J. C. Roos 1940-6-13 1546 Monterey 3-4 miles east of Castroville. Comment
  CLARK-A1528-2916  Quercus agrifolia John C. Roos 1939-4-16 283 Napa Angwin Comment
  CLARK-A1528-4322  Verbascum blattaria John C. Roos 1938-10-22 265 Napa Comment
  POM262789  Trifolium fucatum var. fucatum J. C. Roos 1939-4-15 279 Napa Pope Valley Comment
  POM262798  Allotropa virgata J. C. Roos 1939-5-7 298 Napa Ink Grade near Angwin, Napa Range. Comment
  POM263164  Ranunculus muricatus J. C. Roos 1939-4-18 314 Napa Howell Mountain, Angwin. Comment
  POM263486  Ceanothus jepsonii J. C. Roos 1939-2-28 306 Napa howell Mt. Napa Range Comment
  POM264143  Erigeron inornatus var. biolettii J. C. Roos 1939-4-16 252 Napa Angwin. Comment
  POM264935  Hesperolinon clevelandii J. C. Roos 1939-5-13 266 Napa Angwin, Howell Mt. Comment
  UCR19343  Festuca tracyi John C. Roos 1939-4-18 251 Napa North Coast Range, 3.5 mi. north of Pacific Union College, Angwin. Roadside below Dilly's Place 231 Comment
  UCR23341  Onychium densum John C. Roos 1938-12-10 286 Napa North Coast Range, Blake's Canyon, Pacific Union College, Angwin Comment
  UCR23528  Orobanche uniflora John C. Roos 1939-5-6 293 Napa Napa Range, (near Angwin?) Comment
  UCR23895  Medicago arabica John C. Roos 1939-5-2 292 Napa North Coast Range, Pacific Union College, Angwin 549 Comment
  UCR23914  Trifolium virescens John C. Roos 1939-4-15 279 Napa North Coast Range, Pope Valley, [near] Pacific Union College, Angwin 240 Comment
  UCR24252  Chorizanthe membranacea John C. Roos 1939-5-6 294 Napa North Coast Range, Pacific Union College, Bell's Canyon near Three Peaks 862 Comment
  UCR30447  Ranunculus muricatus John C. Roos 1939-4-18 s.n. Napa North Coast Range, Pacific Union College; Angwin 549 Comment
  UCSB40902  Festuca microstachys Roos, John 1939-4-18 Napa 3.5 mi N. of Pacific Union College; Angwin; roadside below Dilly's place Comment
  CLARK-A1528-3878  Ranunculus hebecarpus John C. Roos 1939-4-1 264 Napa Comment
  POM262890  Pleuropogon californicus var. californicus J. C. Roos 1939-4-1 310 Napa Calistoga. Comment
  POM264418  Lomatium marginatum var. purpureum J. C. Roos 1939-3-18 302 Napa Snell Valley Comment
  CLARK-A1528-1186  Atriplex leucophylla John C. Roos 1949-10-1 4677 Orange Doheney Beach Comment
  CLARK-A1528-3428  Plantago indica John C. Roos 1957-7-29 6657 Orange Newport Beach Comment
  CLARK-A1528-3648  Eriogonum giganteum John C. Roos, Lucille Roos 1950-9-25 4992 Orange Santa Ana Canyon 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-A1528-4161  Antirrhinum coulterianum subsp. orcuttianum John C. Roos 1937-5-10 2082 Orange San Juan Capistrano Comment
  CLARK-A1528-4427  Phyllospadix torreyi John C. Roos 1960-8-27 Orange Dana Point Comment
  CLARK-A1528-4606  Elymus glaucus subsp. glaucus John C. Roos 1937-5-10 2336 Orange San Juan Capistrano Comment
  CLARK-A1528-4649  Festuca californica John C. Roos 1930-5-20 3237 Orange Capistrano Beach Comment
  CLARK-A1528-4720  Lolium temulentum John C. Roos 1937-5-21 2068 Orange Santa Ana Comment
  CLARK-A1528-5001  Euphorbia maculata John C. Roos 1937-5-21 2066 Orange Orange Comment
  POM263244  Stachys rigida subsp. rigida J. C. Roos 1937-5-10 614 Orange East of San Juan Capistrano. Comment
  POM265664  Jepsonia parryi J. C. Roos 1936-10-9 2301 Orange Santa Ana Canyon, near Orange County line. Comment
  RSA444682  Gamochaeta pensylvanica J. C. Roos 1965-6-16 s.n. Orange Dana Point. Comment
  UCR18628  Madia gracilis John C. Roos 1960-5-30 s.n. Orange Peninsular Ranges; Santa Ana Mtns, ridge at head of Hagador Canyon 1070 Comment
Read comments
Jan 7 2013
  UCR19247  Phyllospadix torreyi John C. Roos 1960-8-27 s.n. Orange Dana Point Comment
  UCR24153  Viguiera laciniata John C. Roos 1941-6-4 s.n. Orange Corona Del Mar Comment
  UCR24248  Navarretia hamata subsp. leptantha Alfred R. Roos 1941-6-14 s.n. Orange Corona del Mar 91 Comment
  UCR26139  Haplopappus menziesii John C. Roos 1949-10-1 4683 Orange South Coast, Doheny Beach 0 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-BC106184  Brickellia desertorum John Roos; Lucille Roos 1950-9-9 4986 Riverside Mt. Rubidoux, Riverside 396 Comment
  CAS-BOT-BC131186  Encelia californica John C. Roos 1952-4-16 5557 Riverside Pigeon Pass, Box Springs Mts. 396 Comment
  CAS-BOT-BC137511  Aristida purpurea var. purpurea J. C. Roos 1965-9-26 s.n. Riverside Palm Springs. 121 Comment
  CAS-BOT-BC137513  Aristida purpurea var. purpurea J. C. Roos 1966-4-29 s.n. Riverside Between March AFB and Lakeview. Comment
  CAS-BOT-BC139874  Adenostoma sparsifolium J. C. Roos 1965-8-18 s.n. Riverside Thomas Valley, summit Palms to Pines Hwy., San Jacinto Mtns. Comment
  CAS-BOT-BC170585  Atriplex J. C. Roos 1965-10-17 s.n. Riverside 20 miles west of Blythe on the roadside. Comment
  CAS-BOT-BC178071  Astragalus nuttallianus J. C. Roos 1958-3-15 s.n. Riverside 3 miles S.E. of Desert Center, in the Chuckwalla Mtns. Comment
  CAS-BOT-BC190129  Crypsis vaginiflora John C. Roos 1952-6-4 5735 Riverside San Jacinto river bottomland 1.5 mile southeast of Perris. 426 Comment
  CAS-BOT-BC231412  Lycium andersonii J. C. Roos 1966-2-12 s.n. Riverside 2 miles east of Desert Center Comment
  CAS-BOT-BC274183  Pappostipa speciosa J. C. Roos 1965-6-13 s.n. Riverside East of Hemet Comment
  CAS-BOT-BC299535  Ericameria paniculata J. C. Roos 1965-11-6 s.n. Riverside Whitewater 304 Comment
  CAS-BOT-BC305764  Helianthus niveus J. C. Roos 1965-4-28 s.n. Riverside Palm Springs Comment
  CAS-BOT-BC312304  Heterotheca villosa var. nana John Roos; Lucille Roos 1950-10-21 5011 Riverside Wonderland of Rocks, Little San Bernardinno Mts. 1219 Comment
  CAS-BOT-BC365819  Soliva sessilis John Roos; Lucille Roos 1953-5-9 5916 Riverside Fairmount Park, Riverside 259 Comment
  CAS-BOT-BC48099  Styrax redivivus J. C. Roos 1966-4-23 s.n. Riverside Santa Ana Mtns. S. of Corona. Assoc. Comment
  CLARK-A1528-106  Tetragonia tetragonioides John C. Roos 1951-9-25 5288 Riverside Riverside 259 Comment
  CLARK-A1528-1121  Plagiobothrys canescens John C. Roos 1941-3-22 218 Riverside Reche Canyon 609 Comment
  CLARK-A1528-1182  Quercus dunnii John C. Roos 1956-9-14 3016 Riverside San Jacinto Mountains 1371 Comment
  CLARK-A1528-1317  Dodecatheon clevelandii John C. Roos 1946-12-28 3195 Riverside Reche Canyon 0 Comment
  CLARK-A1528-1386  Trianthema portulacastrum John C. Roos 1965-9-5 Riverside Chuckwalla Valley Comment
  CLARK-A1528-1412  Rhus integrifolia John C. Roos 1944-1-29 2766 Riverside Box Springs Mountains 774 Comment
  CLARK-A1528-1420  Apiastrum angustifolium John C. Roos 1943-4-28 2629 Riverside Comment
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Mar 22 2014
  CLARK-A1528-1422  Apiastrum angustifolium John C. Roos 1937-3-24 1340 Riverside Pigeon Pass Comment
  CLARK-A1528-1447  Lomatium utriculatum John C. Roos 1952-2-29 5365 Riverside Reche Canyon 426 Comment
  CLARK-A1528-1463  Asclepias fascicularis John C. Roos 1941-10-24 5333 Riverside Riverside 228 Comment
  CLARK-A1528-1467  Sarcostemma cynanchoides subsp. hartwegii John C. Roos 1952-8-27 5891 Riverside Reche Canyon 457 Comment
  CLARK-A1528-1469  Sarcostemma hirtellum John C. Roos 1937-4-18 Riverside Colorado Desert Comment
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Mar 3 2014
  CLARK-A1528-1501  Washingtonia filifera John C. Roos 1943-12-19 2762 Riverside Pushawalla Canyon Comment
  CLARK-A1528-1523  Dichelostemma pulchellum John C. Roos 1952-2-29 5380 Riverside Pigeon Pass Comment
  CLARK-A1528-1617  Atrichoseris platyphylla John C. Roos 1966-3-26 Riverside Chuckwalla Mountains Comment
  CLARK-A1528-1619  Baccharis brachyphylla John C. Roos 1958-9-27 Riverside San Jacinto Mountains 914 Comment
  CLARK-A1528-1621  Baccharis emoryi John C. Roos 1951-9-25 5285 Riverside Fairmont Park 259 Comment
  CLARK-A1528-1623  Baccharis emoryi John C. Roos 1948-11-6 4077 Riverside Box Springs Mountains Comment
  CLARK-A1528-1638  Baccharis glutinosa John C. Roos 1951-10-24 5346 Riverside Santa Ana River 259 Comment
  CLARK-A1528-1640  Lasthenia chrysostoma John C. Roos 1952-4-2 5459 Riverside Box Springs 487 Comment
  CLARK-A1528-1655  Brickellia arguta John C. Roos 1966-3-20 Riverside Chuckwalla Mountains Comment
  CLARK-A1528-1670  Brickellia desertorum John C. Roos 1951-10-19 5328 Riverside San Jacinto Mountains Comment
  CLARK-A1528-1770  Chrysopsis villosa John C. Roos 1937-8-19 2499 Riverside San Jacinto Mountains Comment
  CLARK-A1528-1803  Dyssodia porophylloides John C. Roos 1947-2-15 3239 Riverside Eagle Mountains Comment
  CLARK-A1528-1811  Encelia virginensis subsp. actonii John C. Roos 1941-8-2 84 Riverside 609 Comment
  CLARK-A1528-1840  Eriophyllum multicaule John C. Roos 1948-5-22 3866 Riverside San Timoteo Canyon Comment
  CLARK-A1528-1862  Gutierrezia bracteata John C. Roos 1965-9-26 Riverside Palm Springs Station Comment
  CLARK-A1528-1905  Haplopappus squarrosus John C. Roos 1952-8-27 5890 Riverside Reche Canyon 457 Comment
  CLARK-A1528-1925  Hemizonia pungens John C. Roos 1965-6-21 Riverside San Jacinto Comment
  CLARK-A1528-1930  Heterotheca subaxillaris John C. Roos 1965-9-26 Riverside Indio Comment
  CLARK-A1528-1951  Hulsea vestita John C. Roos 1965-6-13 Riverside San Jacinto Mountains Comment
  CLARK-A1528-1978  Lasthenia chrysostoma John C. Roos 1952-5-21 5706 Riverside San Jacinto River 426 Comment
  CLARK-A1528-2000  Machaeranthera cognata John C. Roos 1949-4-6 4138 Riverside Orocopia Mountains Comment
  CLARK-A1528-2069  Psilocarphus brevissimus John C. Roos 1952-4-30 5601 Riverside Edgemont 487 Comment
  CLARK-A1528-2083  Senecio douglasii var. monoensis John C. Roos 1947-11-1 3757 Riverside Eagle Mountains Comment
  CLARK-A1528-2128  Trichocoronis wrightii John C. Roos 1937-6-7 2505 Riverside San Jacinto Valley Comment
  CLARK-A1528-2131  Trichoptilium incisum John C. Roos 1966-3-20 Riverside Chuckwalla Mountains Comment
  CLARK-A1528-2133  Trixis californica John C. Roos 1942-5-2 1145 B Riverside Joshua Tree National Park Comment
  CLARK-A1528-2137  Viguiera deltoidea var. parishii John C. Roos 1965-9-26 Riverside Santa Rosa Mountains 701 Comment
  CLARK-A1528-2175  Baccharis sergiloides John C. Roos 1946-9-14 3003 Riverside San Jacinto Mountains 1066 Comment
  CLARK-A1528-2217  Cryptantha intermedia John C. Roos 1947-3-21 3366 Riverside Reche Canyon Comment
  CLARK-A1528-2223  Cryptantha micrantha John C. Roos 1949-4-11 4239 Riverside Chuckwalla Mountains Comment
  CLARK-A1528-2227  Cryptantha muricata var. jonesii John C. Roos 1950-4-15 4732 Riverside Reche Canyon 792 Comment
  CLARK-A1528-2260  Plagiobothrys canescens John C. Roos 1966-3-24 Riverside Winchester Comment
  CLARK-A1528-2270  Berberis nevinii John C. Roos 1955-3-5 6237 Riverside Scott's Canyon 426 Comment
  CLARK-A1528-2280  Chilopsis linearis John C. Roos 1952-6-21 5783 Riverside San Timoteo Canyon Comment
Read comments
Oct 22 2014
  CLARK-A1528-2314  Draba cuneifolia John C. Roos 1958-2-22 Riverside Chuckwalla Mountains Comment
  CLARK-A1528-2375  Triodanis biflora John C. Roos 1937-5-2 1416 Riverside La Sierra Comment
  CLARK-A1528-2608  Calystegia sepium John C. Roos, Lucille Roos 1952-6-10 5763 Riverside Riverside 259 Comment
  CLARK-A1528-2631  Silene antirrhina John C. Roos 1940-4-20 909 Riverside Reche Canyon Comment
  CLARK-A1528-2685  Rhododendron occidentale John C. Roos 1941-8-2 79 Riverside San Jacinto Mountains Comment
  CLARK-A1528-2692  Ditaxis lanceolata John C. Roos 1946-11-30 3165 Riverside Chuckwalla Mountains Comment
  CLARK-A1528-2708  Euphorbia setiloba John C. Roos 1958-9-28 Riverside San Jacinto Mountains 1219 Comment
  CLARK-A1528-2745  Astragalus insularis var. harwoodii John C. Roos 1949-4-10 4222 Riverside Chuckwalla Mountains Comment
  CLARK-A1528-2775  Dalea spinosa John C. Roos 1947-2-15 3233 Riverside Eagle Mountains Comment
  CLARK-A1528-2785  Hoffmannseggia microphylla John C. Roos 1949-3-19 4108 Riverside Mecca Comment
  CLARK-A1528-2790  Marah macrocarpa John C. Roos 1966-4-23 Riverside Santa Ana Mountains Comment
  CLARK-A1528-2808  Lotus strigosus John C. Roos 1954-5-15 6120 Riverside Reche Canyon 731 Comment
  CLARK-A1528-2850  Lupinus sparsiflorus John C. Roos 1937-4-18 1357 Riverside Cabazon Comment
  CLARK-A1528-2856  Medicago lupulina John C. Roos 1952-4-30 5604 Riverside March Air Force Base 487 Comment
  CLARK-A1528-2885  Trifolium microcephalum John C. Roos 1952-4-29 5600 Riverside Reche Canyon 457 Comment
  CLARK-A1528-2900  Vicia villosa John C. Roos, Lucille Roos 1952-4-28 5588 Riverside Highgrove 335 Comment
  CLARK-A1528-2920  Quercus dumosa John C. Roos 1947-12-13 3765 Riverside Lost Palms Canyon Comment
  CLARK-A1528-2935  Garrya flavescens John C. Roos 1966-4-23 Riverside Santa Ana Mountains Comment
  CLARK-A1528-2969  Eriodictyon crassifolium John C. Roos 1937-4-18 1361 Riverside Snow Creek Comment
  CLARK-A1528-2971  Eriodictyon trichocalyx John C. Roos 1948-5-1 3814 Riverside Whitewater 609 Comment
  CLARK-A1528-2973  Eucrypta micrantha John C. Roos 1958-2-21 Riverside Chuckwalla Mountains Comment
  CLARK-A1528-2983  Nama stenocarpa John C. Roos 1952-5-28 5728 Riverside Perris 426 Comment
  CLARK-A1528-299  Stephanomeria virgata John C. Roos 1951-9-25 5270 Riverside Riverside 259 Comment
  CLARK-A1528-2998  Phacelia crenulata John C. Roos 1949-3-5 4090 Riverside Orocopia Mountains Comment
  CLARK-A1528-3021  Turricula parryi John C. Roos 1946-8-27 2942 Riverside Santa Rosa Mountains 2194 Comment
  CLARK-A1528-3105  Salvia apiana var. compacta John C. Roos 1948-5-8 3824 Riverside Whitewater Comment
  CLARK-A1528-3130  Scutellaria tuberosa John C. Roos 1950-3-18 4715 Riverside Comment
Read comments
Feb 27 2016
  CLARK-A1528-3148  Monardella nana subsp. tenuiflora John C. Roos 1941-8-2 89 Riverside San Jacinto Mountains 2133 Comment
  CLARK-A1528-316  Alnus rhombifolia John C. Roos 1951-9-25 5298 Riverside Riverside 259 Comment
  CLARK-A1528-3168  Mentzelia micrantha John C. Roos, Lucille Roos 1952-5-19 5695 Riverside Moreno 518 Comment
  CLARK-A1528-3212  Ammannia coccinea John C. Roos 1952-5-16 5672 Riverside San Jacinto River 426 Comment
  CLARK-A1528-3243  Sidalcea neomexicana John C. Roos 1966-5-19 Riverside San Jacinto Valley Comment
  CLARK-A1528-3258  Abronia villosa var. aurita John C. Roos 1936-9-15 2516 Riverside San Jacinto Mountains Comment
  CLARK-A1528-3267  Boerhavia coccinea John C. Roos 1966-9-20 Riverside San Jacinto Comment
  CLARK-A1528-3269  Boerhavia torreyana John C. Roos 1946-11-29 3178 Riverside Hayfield Comment
  CLARK-A1528-3271  Boerhavia wrightii John C. Roos 1937-8-22 14 Riverside Comment
  CLARK-A1528-3315  Boisduvalia glabella John C. Roos 1952-5-14 5662 Riverside Edgemont 487 Comment
  CLARK-A1528-3364  Clarkia dudleyana John C. Roos 1952-6-8 5752 Riverside Reche Canyon 518 Comment
  CLARK-A1528-3378  Epipactis gigantea John C. Roos 1948-5-29 3870 Riverside Whitewater Canyon Comment
  CLARK-A1528-3431  Plantago erecta John C. Roos 1937-2-21 1311 Riverside Riverside Comment
  CLARK-A1528-3475  Linanthus dichotomus John C. Roos 1937-4-17 Riverside Aguanga Comment
  CLARK-A1528-3564  Pinus quadrifolia John C. Roos 1947-4-5 3436 Riverside San Jacinto Mountains 1462 Comment
  CLARK-A1528-3578  Adiantum pedatum John C. Roos 1948-5-29 3871 Riverside Whitewater Canyon Comment
  CLARK-A1528-3588  Pellaea andromedifolia John C. Roos 1937-5-2 1417 Riverside La Sierra 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-A1528-3599  Chorizanthe fimbriata John C. Roos 1937-4-23 1807 Riverside White Water Comment
  CLARK-A1528-3630  Pinus quadrifolia John C. Roos 1938-8-7 585 Riverside San Jacinto Mountains Comment
  CLARK-A1528-3736  Eriogonum fasciculatum subsp. flavoviride John C. Roos 1948-5-15 3845 Riverside Eagle Mountains Comment
  CLARK-A1528-3797  Rumex californicus John C. Roos 1952-5-26 5719 Riverside Reche Canyon 457 Comment
  CLARK-A1528-3799  Rumex hymenosepalus John C. Roos 1966-4-29 Riverside Lakeview 457 Comment
  CLARK-A1528-3815  Calyptridium monandrum John C. Roos 1952-4-23 5581 Riverside Box Springs Mountains 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-A1528-3868  Myosurus minimus subsp. apus John C. Roos 1952-4-9 5515 Riverside Edgemont 487 Comment
  CLARK-A1528-3911  Colubrina californica John C. Roos 1967-11-11 Riverside Chuckwalla Mountains Comment
  CLARK-A1528-3972  Adenostoma sparsifolium John C. Roos 1965-8-18 Riverside San Jacinto Mountains Comment
  CLARK-A1528-4037  Prunus virginiana 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-A1528-4177  Castilleja foliolosa John C. Roos 1940-5-4 880 Riverside San Timoteo Canyon Comment
  CLARK-A1528-4302  Penstemon eatonii John C. Roos 1948-5-15 3839 Riverside Eagle Mountains Comment
  CLARK-A1528-4347  Lycium andersonii John C. Roos 1938-4-27 19 Riverside Riverside Comment
  CLARK-A1528-4361  Physalis crassifolia John C. Roos 1946-10-26 3149 Riverside Chuckwalla Mountains Comment
  CLARK-A1528-4411  Viola pedunculata John C. Roos 1947-3-21 3370 Riverside Reche Canyon Comment
  CLARK-A1528-4429  Fagonia laevis John C. Roos 1949-5-5 4095 Riverside Orocopia Mountains Comment
  CLARK-A1528-4434  Larrea tridentata John C. Roos 1947-2-1 3218 Riverside Coachella Valley Comment
  CLARK-A1528-4466  Aristida divaricata John C. Roos 1941-8-2 83 Riverside San Jacinto Mountains Comment
  CLARK-A1528-4482  Aristida purpurea John C. Roos 1965-8-15 Riverside San Jacinto Valley Comment
  CLARK-A1528-4495  Avena fatua John C. Roos 1952-4-9 5472 Riverside Riverside 274 Comment
  CLARK-A1528-4502  Bothriochloa barbinodis John C. Roos 1946-9-14 3027 Riverside Santa Rosa Mountains 1158 Comment
  CLARK-A1528-4506  Bouteloua aristidoides John C. Roos 1943-12-19 2764 Riverside Mecca Hills Comment
  CLARK-A1528-4512  Bouteloua barbata John C. Roos 1946-9-14 3025 Riverside San Jacinto Mountains 1219 Comment
  CLARK-A1528-4516  Bouteloua curtipendula John C. Roos 1958-9-28 Riverside San Jacinto Mountains Comment
  CLARK-A1528-4547  Bromus orcuttianus John C. Roos 1942-6-20 994 Riverside San Jacinto Mountains Comment
  CLARK-A1528-4554  Bromus rubens John C. Roos 1952-4-2 5465 Riverside Box Springs 426 Comment
  CLARK-A1528-4561  Bromus trinii John C. Roos, Lucille Roos 1953-3-21 5909 Riverside Andreas Canyon 274 Comment
  CLARK-A1528-4563  Bromus trinii John C. Roos, Lucille Roos 1952-5-24 5711 Riverside Moreno Valley 518 Comment
  CLARK-A1528-4589  Distichlis spicata subsp. stricta John C. Roos 1937-5-10 2333 Riverside Elsinore Comment
  CLARK-A1528-4622  Eriochloa acuminata John C. Roos 1937-11-28 Riverside Riverside Comment
  CLARK-A1528-4626  Erioneuron pulchellum John C. Roos 1949-3-5 4088 Riverside Orocopia Mountains Comment
  CLARK-A1528-4643  Festuca arundinacea John C. Roos 1950-4-15 4743 Riverside Riverside 259 Comment
  CLARK-A1528-4654  Festuca megalura John C. Roos 1937-5-2 1395 Riverside La Sierra Comment
  CLARK-A1528-4661  Festuca octoflora John C. Roos 1952-4-9 5483 Riverside Riverside 259 Comment
  CLARK-A1528-4663  Festuca octoflora John C. Roos 1952-4-9 5483 Riverside Riverside 259 Comment
  CLARK-A1528-4667  Festuca pacifica John C. Roos 1937-5-2 1282 Riverside Riverside Comment
  CLARK-A1528-4689  Hordeum glaucum John C. Roos 1952-4-9 5494 Riverside Riverside 304 Comment
  CLARK-A1528-4706  Lamarckia aurea John C. Roos 1952-4-2 5462 Riverside Box Springs Comment
  CLARK-A1528-4722  Melica californica John C. Roos 1950-4-22 4754 Riverside Box Springs Mountains 792 Comment
  CLARK-A1528-4754  Muhlenbergia microsperma John C. Roos 1952-4-9 5507 Riverside Riverside 365 Comment
  CLARK-A1528-4763  Muhlenbergia rigens John C. Roos 1947-11-1 Riverside Eagle Mountain Comment
  CLARK-A1528-4798  Phalaris paradoxa John C. Roos 1943-4-3 2616 Riverside San Timoteo Canyon 457 Comment
  CLARK-A1528-485  Lotus rigidus John C. Roos 1951-9-25 Riverside Pinyon Crest Comment
  CLARK-A1528-4854  Viguiera deltoidea var. parishii John C. Roos 1937-4-18 1376 Riverside Snow Creek Comment
  CLARK-A1528-4873  Lupinus sparsiflorus John C. Roos 1937-3-23 434 Riverside Whitewater Comment
  CLARK-A1528-4877  Erigeron foliosus John C. Roos 1938-5-26 474 Riverside La Sierra Comment
  CLARK-A1528-4965  Dalea spinosa John C. Roos 1947-2-15 3233 Riverside Eagle Mountains Comment
  CLARK-A1528-4990  Chenopodium californicum John C. Roos 1951-9-25 5301 Riverside Riverside 259 Comment
  CLARK-A1528-4992  Crossosoma bigelovii John C. Roos 1948-4-24 3803 Riverside Whitewater 609 Comment
  CLARK-A1528-4996  Ambrosia dumosa John C. Roos 1948-4-24 3796 Riverside Whitewater Comment
  CLARK-A1528-5007  Chenopodium murale John C. Roos 1937-8-17 2408 Riverside San Jacinto Comment
  CLARK-A1528-5017  Cotula australis John C. Roos 1965-12-20 Riverside Riverside 243 Comment
  CLARK-A1528-5034  Sporobolus poiretii John C. Roos 1965-11-4 Riverside Riverside Comment
  CLARK-A1528-5055  Medicago sativa John C. Roos 1951-9-25 5292 Riverside Riverside 259 Comment
  CLARK-A1528-5062  Lythrum californicum John C. Roos 1946-9-14 3010 Riverside San Jacinto Mountains 1066 Comment
  CLARK-A1528-5188  Melica imperfecta John C. Roos 1950-4-29 4771 Riverside Box Springs Mountains 609 Comment
  CLARK-A1528-5200  Salix hindsiana var. leucodendroides John C. Roos, Lucille Roos 1952-3-1 5382 Riverside Moreno 609 Comment
  CLARK-A1528-5212  Eriogonum pusillum John C. Roos 1943-5-23 2667 Riverside Little San Bernardino Mountains 914 Comment
  CLARK-A1528-5220  Hoffmannseggia microphylla John C. Roos 1937-4-28 768 Riverside Shavers Valley Comment
  CLARK-A1528-5235  Amaranthus retroflexus John C. Roos 1937-8-17 2406 Riverside San Jacinto Comment
  CLARK-A1528-5241  Microseris linearifolia John C. Roos 1950-4-5 4721 Riverside Pigeon Pass 426 Comment
  CLARK-A1528-5258  Sporobolus cryptandrus John C. Roos 1965-8-15 Riverside San Jacinto Valley Comment
  CLARK-A1528-5283  Tridens muticus John C. Roos 1947-1-11 3198 Riverside Chuckwalla Mountains Comment
  CLARK-A1528-5287  Tridens muticus John C. Roos 1966-11-12 Riverside Chuckawalla Mountains Comment
  CLARK-A1528-5364  Boisduvalia glabella John C. Roos 1952-5-14 5662 Riverside Edgemont 487 Comment
  CLARK-A1528-5378  Machaeranthera tephrodes John C. Roos 1951-10-19 5330 Riverside San Jacinto River 457 Comment
  CLARK-A1528-5393  Solidago occidentalis John C. Roos 1951-9-25 5282 Riverside Riverside 259 Comment
  CLARK-A1528-5428  Garrya flavescens John C. Roos 1947-3-15 3337 Riverside San Jacinto Mountains 1462 Comment
  CLARK-A1528-5433  Erodium obtusiplicatum John C. Roos 1966-3-22 Riverside Edgemont Comment
  CLARK-A1528-5437  Phacelia crenulata John C. Roos 1966-3-20 Riverside Chuckwalla Mountains Comment
  CLARK-A1528-5445  Aster menziesii John C. Roos 1951-10-19 Riverside San Timoteo Canyon dry, semi-alkaline road side; with Artemisia douglasiana and Distichlis stricta; ; El Casco 7.5' 609 Comment
  CLARK-A1528-5452  Bidens frondosa John C. Roos 1951-9-25 5265 Riverside Riverside 259 Comment
  CLARK-A1528-5492  Forestiera neomexicana John C. Roos 1965-7-25 Riverside Santa Rosa Mountains Comment
  CLARK-A1528-5505  Brickellia desertorum John C. Roos 1951-10-19 5328 Riverside San Jacinto Mountains 457 Comment
  CLARK-A1528-5544  Stenotaphrum secundatum John C. Roos 1951-9-22 5234 Riverside Riverside Comment
  CLARK-A1528-5553  Stipa speciosa John C. Roos 1937-5-1 1292 Riverside Badlands Comment
  CLARK-A1528-5564  Scirpus olneyi John C. Roos, Lucille Roos 1952-6-10 5762 Riverside Riverside 259 Comment
  CLARK-A1528-5630  Cotula australis John C. Roos 1965-12-20 Riverside Riverside 243 Comment
  CLARK-A1528-5632  Berberis dictyota John C. Roos 1947-1-31 3215 Riverside Reche Canyon Comment
  CLARK-A1528-5651  Chenopodium pumilio John C. Roos 1947-8-15 Riverside Santa Ana River Comment
  CLARK-A1528-5688  Krameria grayi John C. Roos 1946-5-15 3856 Riverside Eagle Mountains Comment
  CLARK-A1528-5697  Salvia greatae John C. Roos 1963-9-9 Riverside Orocopia Mountains Comment
  CLARK-A1528-5699  Boerhavia coccinea John C. Roos 1945-5-15 3858 Riverside Eagle Mountains Comment
  CLARK-A1528-5730  Ribes quercetorum John C. Roos 1952-2-18 5354 Riverside Reche Canyon 761 Comment
  CLARK-A1528-5815  Paeonia brownii John C. Roos, Lucille Roos 1952-3-1 5381 Riverside San Timoteo Canyon 518 Comment
  CLARK-A1528-6882  Ribes indecorum John C. Roos 1946-12-27 3194 Riverside Box Springs Mountains Comment
  CLARK-A1528-697  Plantago major John C. Roos 1951-9-25 5274 Riverside Riverside 259 Comment
  CLARK-A1528-76  Muhlenbergia asperifolia John C. Roos 1951-9-25 5257 Riverside Riverside 259 Comment
  CLARK-A1528-7803  Gnaphalium palustre John C. Roos 1952-6-8 5742 Riverside Reche Canyon 640 Comment
  CLARK-A1528-7855  Coldenia canescens John C. Roos 1949-4-11 4243 Riverside Eagle Mountains Comment
  CLARK-A1528-7882  Galium angustifolium subsp. angustifolium John C. Roos 1948-5-8 3819 Riverside Whitewater Canyon 548 Comment
  CLARK-A1528-7886  Fagonia californica var. glutinosa John C. Roos 1948-9-18 3220 Riverside Painted Canyon Comment
  CLARK-A1528-903  Urtica holosericea John C. Roos 1951-9-25 5286 Riverside Fairmont Park 259 Comment
  HSC78529  Plagiobothrys canescens J. C. Roos 1966-3-24 Riverside Winchester Comment
  HSC78590  Astragalus insularis var. harwoodii J. C. Roos 1958-3-15 Riverside 3 mi. SE of Desert Center, Chuckwalla Mtns. Comment
  IRVC26150  Eragrostis mexicana subsp. mexicana J. C. Roos 1952-5-14 5659 Riverside Riverside, corner of Iowa Avenue and 8th Street southern coastal 305 Comment
  LA102174  Melica californica John C. Roos; 1950-4-22 4754 Riverside Reche Canyon, 0.5 mi NE of the summit 792 Comment
Read comments
Feb 23 2014
  LA102320  Scutellaria mexicana John C. Roos; 1958-9-27 sn Riverside Santa Rosa Mountains, Carrizo Creek near Black Hill 914 Comment
  OBI33598  Chaenactis glabriuscula var. lanosa John C. Roos 1966-4-29 s.n. Riverside Between March AFB and Lakeview Comment
  POM251786  Lycium andersonii J. C. Roos 1938-4-27 19 Riverside Hill west of Arlington. Comment
  POM262895  Wislizenia refracta subsp. refracta J. C. Roos 1936-4-22 606 Riverside 10 miles E of Indio Comment
  POM262976  Antirrhinum nuttallianum subsp. nuttallianum J. C. Roos 1941-4-19 176 Riverside Reche Canyon - 'Plateau' [Label indicates San Bernardino Co.] Comment
  POM263178  Hordeum brachyantherum subsp. californicum J. C. Roos 1937-5-10 429 Riverside Lake Elsinore. Comment
  POM263194  Andropogon glomeratus J. C. Roos 1938-12-29 322 Riverside Palm Canyon. Comment
Read comments
Apr 3 2011
  POM263357  Phalaris lemmonii J. C. Roos 1937-5-10 456 Riverside Lake Elsinore. Comment
  POM265678  Dudleya saxosa subsp. aloides J. C. Roos 1937-4-18 1284 Riverside Near Cabazon. Comment
  POM265814  Oenothera laciniata J. C. Roos 1936-5-15 2259 Riverside La Sierra, western Riverside Co. Comment
  POM431207  Pleuraphis rigida J. C. Roos 1965-9-5 s.n. Riverside 18 miles W of Blythe. Comment
  RSA263175  Agrostis idahoensis J. C. Roos 1937-8-18 465 Riverside Round Valley, San Jacinto Mountains. Comment
  RSA40562  Tridens muticus J. C. Roos 1946-11-30 3173 Riverside Rocky slope, N face Chuckawalla Mts, SW of Desert Center, Riverside County Comment
  RSA40604  Phlox austromontana J. C. Roos 1946-8-27 2922 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
  RSA443394  Lycium andersonii J. C. Roos 1966-2-12 s.n. Riverside 2 mi. E of Desert Center. In wash with Olneya tesota. Comment
  RSA443545  Eriogonum elongatum J. C. Roos 1965-9-14 s.n. Riverside Hills south of Beaumont. Comment
  RSA443546  Camissonia brevipes subsp. brevipes J. C. Roos 1966-3-20 s.n. Riverside 2 miles SE of Desert Center. Comment
  RSA444455  Fagonia laevis Roos 1965-6-23 s.n. Riverside Lost Palms Wash. Comment
  RSA444459  Ziziphus obtusifolia var. canescens J. C. Roos 1965-6-23 s.n. Riverside Lost Palms Wash. Comment
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Aug 19 2011
  RSA444461  Physalis crassifolia Roos 1965-6-23 s.n. Riverside Lost Palms Wash. Comment
  RSA444466  Antirrhinum nuttallianum subsp. nuttallianum L. Roos 1966-4-29 s.n. Riverside Hills between March Air Force Base and Lakeview; rocky crevices Comment
  RSA444664  Fagonia laevis J. C. Roos 1966-3-26 s.n. Riverside 2 miles SE of Desert Center. Comment
  RSA44860  Epilobium canum subsp. latifolium J. C. Roos, L. Roos 1947-11-1 3754 Riverside Eagle Mountains, Lost Palms Canyon. Comment
  RSA450147  Navarretia hamata J. C. Roos 1965-6-30 s.n. Riverside ortega Highway, Santa Ana Mtns. Comment
Read comments
May 21 2011
  RSA450252  Eriogonum wrightii var. nodosum J. C. Roos 1967-10-28 s.n. Riverside Whitewater. 427 Comment
  RSA450305  Astragalus tricarinatus J. C. Roos 1948-5-8 3826 Riverside Whitewater. 518 Comment
  RSA450313  Eremocarpus setiger J. C. Roos 1965-7-27 s.n. Riverside Elsinore. Comment
  RSA450467  Lupinus truncatus J. C. Roos 1966-4-5 s.n. Riverside Winchester. Comment
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Mar 20 2011
  RSA450470  Tetracoccus hallii J. C. Roos 1965-6-23 s.n. Riverside Lost Palms Canyon, Eagle Mountains, Colorado Desert. Comment
  RSA450476  Salazaria mexicana J. C. Roos 1965-6-13 s.n. Riverside Santa Rosa Mountains: Dos Palmas Springs. Comment
  RSA450761  Baccharis emoryi J. C. Roos 1965-10-7 s.n. Riverside Fairmont Park Comment
  RSA450769  Atrichoseris platyphylla J. C. Roos 1966-3-26 s.n. Riverside 2 mi S.E. of Desert Center. Comment
  RSA45532  Petalonyx linearis J. C. Roos, L. Roos 1949-4-6 4143 Riverside SE foot of Orocopia Mts, 2.5 miles NE of Dos Palmos Springs Comment
  RSA45543  Colubrina californica J. C. Roos 1949-4-10 4231 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
  RSA48867  Baccharis salicifolia J. C. Roos 1949-9-17 4658 Riverside Oasis, Whitewater Wash, 2.2 miles N of Hwy 99 518 Comment
  RSA648065  Pleurocoronis pluriseta J. C. Roos 1946-10-26 3141 Riverside Chuckwalla Mtns. Comment
  RSA648069  Muhlenbergia asperifolia J. C. Roos 1946-9-14 3002 Riverside Dos Palmas Springs east of Asbestos Mt. 1066 Comment
  RSA648673  Vulpia microstachys var. pauciflora J. C. Roos 1952-3-2 5464 Riverside Box Springs grade east of Riverside. 426 Comment
  RSA648741  Alnus rhombifolia J. C. Roos 1948-5-8 3828 Riverside Along stream at Whitewater. 518 Comment
  RSA659478  Salvia greatae J. C. Roos 1958-3-29 s.n. Riverside Salt Creek Wash, 3 miles N of Coachella Canal on E base of Orocopia Mtns. 305 Comment
  RSA659631  Melica imperfecta J. C. Roos 1950-4-4 4754 Riverside The summit of Reche Canyon. On 2 year old burn, steep West slope, 0.5 mi. N.E. of the summit. 793 Comment
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Apr 3 2011
  RSA659690  Plagiobothrys tenellus J. C. Roos 1947-3-21 3367 Riverside Plateau, Reche Canyon 366 Comment
  RSA659696  Silene laciniata J. C. Roos 1965-6-19 s.n. Riverside Skyline Drive, S of Corona Comment
  RSA659722  Gutierrezia bracteata J. C. Roos 1965-9-26 s.n. Riverside Rocky point near Palm Springs Station. Comment
  RSA659768  Astragalus didymocarpus J. C. Roos 1952-4-30 5606 Riverside Hills between Camp Haan and Riverside 518 Comment
  RSA659780  Nemacladus ramosissimus J. C. Roos, L. Roos 1952-4-28 5591 Riverside Box Springs Mtns. 396 Comment
  RSA659785  Lotus salsuginosus J. C. Roos, L. Roos 1952-5-19 5694 Riverside On hills north of Moreno. Comment
  RSA662539  Bergia texana J. C. Roos 1952-5-28 5730 Riverside San Jacinto River bottomland 1 mile south-east of Perris. 427 Comment
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May 15 2016
  RSA69819  Mentha aquatica J. C. Roos 1951-9-25 5289 Riverside West end Fairmount Park 259 Comment
  RSA69830  Machaeranthera asteroides J. C. Roos 1951-10-19 5330 Riverside Gilman Hot Springs 459 Comment
  RSA78222  Boerhavia intermedia J. C. Roos, L. Roos 1952-10-18 5901 Riverside Hidden Valley Campground 1220 Comment
  RSA85082  Psilocarphus brevissimus J. C. Roos 1952-4-30 5601 Riverside Edgemont, near Box Springs 488 Comment
  RSA85090  Phacelia distans J. C. Roos 1952-4-9 5493 Riverside Riverside, W face of Mt. Rubidoux. 400 Comment
  RSA85100  Filago californica J. C. Roos 1952-4-13 5528 Riverside Box Springs Mts. 488 Comment
  RSA85120  Pellaea mucronata var. mucronata J. C. Roos 1952-5-7 5616 Riverside Box Springs Mountains, north of Canyon Crest Heights 457 Comment
  RSA85405  Silene antirrhina J. C. Roos, L. Roos 1952-4-28 5590 Riverside Box Springs Mtns. 396 Comment
  RSA85445  Tauschia arguta J. C. Roos 1952-4-13 5521 Riverside Box Springs Mtns. 520 Comment
  RSA85446  Lotus argophyllus var. argophyllus J. C. Roos 1952-4-13 5522 Riverside Dry ridge on Box Springs Mtns. 488 Comment
  RSA85449  Stellaria nitens J. C. Roos 1952-4-13 5531 Riverside North side of Box Canyon 396 Comment
  RSA85454  Callitriche marginata J. C. Roos 1952-4-16 5540 Riverside Edgemont, near Box Springs. 488 Comment
  RSA85584  Nasturtium officinale J. C. Roos 1950-4-9 5477 Riverside Fairmont Park, Riverside. 259 Comment
  RSA85587  Lotus strigosus J. C. Roos 1952-4-9 5479 Riverside Fairmount Park 259 Comment
  RSA89879  Brickellia desertorum J. C. Roos, L. Roos 1950-10-14 5006 Riverside E end Jurupa Hills, near corner of Alta & Canal Sts. 305 Comment
  RSA89966  Brickellia desertorum J. C. Roos 1950-10-15 5009 Riverside San Bernardino Mtns. Dry Morongo Canyon, c. l mi south of Riverside-San Bernardino county line. 612 Comment
  SBBG53832  Colubrina californica J. C. Roos 1967-11-11 Riverside Chuckwalla Mtns, 3 mi SE of Desert Center Comment
  SEINET225363  Allium haematochiton J. C. Roos 1966-3-24 Riverside Bundy Canyon Rd E of Elsinore Comment
  SEINET880825  Stillingia spinulosa J. C. Roos 1965-1 s.n. Riverside Dillon Road in Desert Hot Springs. 305 Comment
  UC1010309  Brickellia desertorum John and Lucille Roos 1950-9-9 4986 Riverside Mt. Rubidoux 396 Comment
  UC1010313  Brickellia desertorum John and Lucille Roos 1950-9-30 4996 Riverside .5 mi se of Citrus Experiment Station (Box Springs Grade); Box Springs Grade 396 Comment
  UC1023393  Bromus trinii John and Lucille Roos 1953-3-21 5909 Riverside s of Palm Springs (mouth of Andreas Canyon); Andreas Canyon 274 Comment
  UC1042990  Malosma laurina John and Lucille Roos 1954-7-10 6191 Riverside n. side Pigeon Pass; Box Springs Mts. 487 Comment
  UC1043020  Phalaris paradoxa John C. Roos 1952-5-21 5702 Riverside 1 1/2 mi se Perris; San Jacinto River bottomland 426 Comment
  UC1519870  Atriplex muelleri J. C. Roos 1965-10-17 Riverside on the roadside 20 mi w Blythe; w of Blythe Comment
  UCD134970  Pleurocoronis pluriseta J. C. Roos 1966-3-10 s.n. Riverside 3 miles southwest of Desert Center, Chuckwalla Mtns. Comment
  UCR17541  Echinodorus berteroi John C. Roos 1952-5-28 5727 Riverside Perris-Aguanga Basin region, San Jacinto River bottomland 1 mile southeast of Perris 427 Comment
  UCR17557  Bergia texana John C. Roos 1952-5-28 5730 Riverside Perris-Aguanga Basin region, San Jacinto River bottomland 1 mile southeast of Perris 427 Comment
  UCR18583  Ambrosia ilicifolia John C. Roos, Lucille Roos 1949-4-10 4230 Riverside Sonoran (Colorado) Desert, Chuckwalla Mts, canyon 3.5 mi. SE of Desert Center 612 Comment
  UCR18589  Brickellia arguta 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
  UCR18799  Tiquilia palmeri John C. Roos 1965-10-17 s.n. Riverside Sonoran (Colorado) Desert, 10 mi. west of Blythe Comment
  UCR18810  Trichoptilium incisum 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
  UCR18878  Cressa truxillensis John C. Roos 1952-5-21 5703 Riverside Perris-Aguanga Basin region, San Jacinto River bottomland 1.5 mi. SE of Perris. 427 Comment
  UCR18913  Delphinium cardinale John C. Roos 1965-6-19 s.n. Riverside Peninsular Range; Santa Ana Mtns, Sky Line Drive, south of Corona Comment
  UCR18915  Ranunculus hebecarpus John C. Roos 1950-5-6 4790 Riverside Santa Ana Mtns., Hagador Canyon 610 Comment
  UCR18938  Astragalus insularis var. harwoodii John C. Roos, Lucille Roos 1949-4-10 4228 Riverside Sonoran (Colorado) Desert, Chuckwalla Mts, rocky hillside 3.5 mi. SE of Desert Center Comment
  UCR18944  Olneya tesota John C. Roos 1965-12-4 s.n. Riverside Sonoran (Colorado) Desert, Chuckwalla Mtns, 2 mi. SE of Desert Center 366 Comment
  UCR18956  Githopsis diffusa subsp. diffusa John C. Roos 1952-5-24 5710 Riverside Hills north of Moreno Comment
  UCR18968  Astragalus tricarinatus John C. Roos 1967-3-25 s.n. Riverside Sonoran (Colorado) Desert/ San Bernardino Mtns., Whitewater Canyon 457 Comment
  UCR18979  Psorothamnus spinosus John C. Roos 1965-6-23 s.n. Riverside Coachella Valley, N of Indio Comment
  UCR18980  Caesalpinia virgata 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
  UCR18988  Quercus berberidifolia John C. Roos 1965-9-14 s.n. Riverside hills SW of Beaumont. Comment
  UCR19014  Imperata brevifolia John C. Roos 1965-7-22 s.n. Riverside Sonoran (Colorado) Desert, Palm Springs Comment
  UCR19054  Mimulus pilosus John C. Roos 1948-6-19 3882 Riverside San Jacinto Mtns., Roadside [vicinity of Dark Canyon] 7 miles north of Idyllwild Comment
  UCR19112  Allionia incarnata John C. Roos 1965-9-5 s.n. Riverside Sonoran (Colorado) Desert, Desert Center Comment
  UCR19167  Navarretia atractyloides John C. Roos 1950-5-27 4818 Riverside Peninsular Range, Hills NE of summit of Reche Canyon 762 Comment
  UCR19172  Phacelia distans John C. Roos 1966-3-20 s.n. Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, 2 miles southeast of Desert Center 366 Comment
  UCR19191  Chloracantha spinosa John C. Roos 1965-7-5 s.n. Riverside Sonoran (Colorado) Desert, Blythe 75 Comment
  UCR19204  Calandrinia ciliata John C. Roos 1966-3-24 s.n. Riverside Winchester 457 Comment
  UCR19219  Parietaria hespera var. hespera 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
  UCR19230  Parietaria hespera var. californica John C. Roos 1959-3-19 5401 Riverside Peninsular Range, Box Springs Mountains, on NE edge of Riverside 396 Comment
  UCR19255  Brickellia desertorum John C. Roos 1947-11-1 3752 Riverside Sonoran (Colorado) Desert, Eagle Mountains, mouth of Lost Palms Canyon, & up the canyon some distance 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
  UCR19288  Stipa coronata John C. Roos 1950-5-27 4817 Riverside Peninsular Range, Hills NE of summit of Reche Canyon 762 Comment
  UCR19303  Schismus barbatus John C. Roos 1952-3-19 5400 Riverside Peninsular Range, Box Springs Mountains [east edge of Riverside] 457 Comment
  UCR19540  Matricaria matricarioides John C. Roos 1966-3-24 s.n. Riverside Winchester (near Hemet) 457 Comment
  UCR19658  Triticum aestivum John C. Roos 1965-10-4 s.n. Riverside March AFB, Edgemont 366 Comment
  UCR19661  Paspalum dilatatum John C. Roos 1965-8-3 s.n. Riverside Hemet 503 Comment
  UCR19665  Poa secunda John C. Roos 1950-2-25 4710 Riverside Pass between Reche Canyon and Pigeon Pass Road 457 Comment
  UCR19678  Aristida purpurea var. nealleyi John C. Roos, Lucille Roos 1949-4-11 4242 Riverside Sonoran (Colorado) Desert, Hayfield Dry Lake Comment
  UCR19683  Aristida californica John C. Roos 1946-9-14 3007 Riverside Santa Rosa Mtns, Dos Palmas Spring, east of Asbestos Mountain 1070 Comment
  UCR19689  Avena barbata John C. Roos 1966-3-22 s.n. Riverside San Jacinto Valley, Gilman [Hot] Springs 610 Comment
  UCR19710  Trifolium gracilentum John C. Roos 1952-4-9 5485 Riverside Hill by Fairmont Park, Riverside 259 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
  UCR23251  Ribes californicum var. hesperium John C. Roos 1965-6-19 s.n. Riverside Peninsular Range; Santa Ana Mtns, Sky Line Drive, south of Corona Comment
  UCR23256  Petunia parviflora John C. Roos 1952-5-28 5728 Riverside Perris-Aguanga Basin region, San Jacinto River bottomland 1 mile southeast of Perris 427 Comment
  UCR23259  Dodecatheon clevelandii John C. Roos 1958-4-3 s.n. Riverside Plateau in Reche Canyon Comment
  UCR23268  Asclepias erosa John C. Roos 1965-9-5 s.n. Riverside Sonoran (Colorado) Desert, 18 mi. west of Blythe 122 Comment
  UCR23275  Rhus ovata John C. Roos 1950-10-15 5007 Riverside San Bernardino Mtns., Dry Morongo Canyon, c. l mi south of Riverside-San Bernardino county line 612 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
  UCR23301  Stipa lepida John C. Roos, L. Roos 1952-5-19 5691 Riverside North of Moreno 518 Comment
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May 20 2011
  UCR23303  Poa secunda John C. Roos 1952-4-2 5453 Riverside Edgemont, near Box Springs 488 Comment
  UCR23314  Stipa speciosa John C. Roos 1952-4-9 5495 Riverside Riverside, W face of Mt. Rubidoux 400 Comment
  UCR23321  Festuca microstachys John C. Roos 1952-4-2 5464 Riverside Box Springs Mtns, Box Springs grade east of Riverside. 427 Comment
  UCR23421  Amaranthus hybridus John C. Roos 1965-10-13 s.n. Riverside Corona Comment
  UCR23482  Draba cuneifolia John C. Roos 1958-2-22 s.n. Riverside Chuckwalla Mtns., Canyon 2.5 mi S.E. of Desert Center Comment
  UCR23534  Epilobium oregonense John C. Roos 1937-8-18 2528 Riverside San Jacinto Mtns, Round Valley 2744 Comment
  UCR23552  Capsella bursa-pastoris John C. Roos 1966-3-24 s.n. Riverside Hemet, in a vacant lot Comment
  UCR23564  Nama demissa John C. Roos 1966-3-26 s.n. Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, 2 mi SE of Desert Center 366 Comment
  UCR23587  Cryptantha intermedia John C. Roos 1950-4-22 4746 Riverside Pigeon Pass. 457 Comment
  UCR23678  Silene parishii John C. Roos 1936-9-15 2515 Riverside San Jacinto Mountains, Devil's Slide Trail above Idyllwild. Comment
  UCR23710  Arenaria macradenia John C. Roos 1943-5-23 2673 Riverside S Mojave Desert, Little San Bernardino Mtns 1524 Comment
  UCR23770  Eclipta prostrata John C. Roos 1948-10-23 3524 Riverside Riverside, Evans Lake, Fairmont Park 274 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
  UCR23785  Chrysothamnus nauseosus John C. Roos 1943-10-16 2738 Riverside Southern Mojave Desert, Falcon Flats, Little San Bernardino Mtns 1524 Comment
  UCR23899  Lotus nevadensis var. nevadensis John C. Roos 1937-8-18 2541 Riverside San Jacinto Mtns., Near Willow Creek 2439 Comment
  UCR23925  Aristida californica John C. Roos 1937-8-22 1209 Riverside Sonoran (Colorado) Desert, 7.5 miles NE of Desert Center 163 Comment
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Mar 26 2011
  UCR23926  Avena barbata John C. Roos, L. Roos 1950-4-15 4738 Riverside Peninsular Range, Box Springs Mtns., Pigeon Pass 457 Comment
  UCR23945  Lupinus formosus John C. Roos 1943-5-23 2664 Riverside S Mojave Desert, Little San Bernardino Mtns 1524 Comment
  UCR23946  Lupinus formosus var. hyacinthinus John C. Roos 1937-8-18 1222 Riverside San Jacinto Mtns, Round Valley 2805 Comment
  UCR23990  Eragrostis mexicana subsp. virescens John C. Roos 1965-7-7 s.n. Riverside San Jacinto Comment
  UCR23998  Phalaris aquatica John C. Roos 1962-6-30 s.n. Riverside Santa Ana Mtns, Head of Tin Mine Canyon Comment
  UCR24104  Carex douglasii John C. Roos 1943-10-16 2739 Riverside Southern Mojave Desert, Falcon Flats, Little San Bernardino Mtns 1524 Comment
  UCR24296  Montia chamissoi John C. Roos 1937-8-18 2536 Riverside San Jacinto Mtns, Round Valley 2744 Comment
  UCR24422  Aristida purpurea var. nealleyi John C. Roos, L. Roos 1950-10-21 5015 Riverside Mojave Desert, Little San Bernardino Mountains, Wonderland of Rocks [Joshua Tree National Park] 1220 Comment
  UCR24433  Mimulus breweri John C. Roos 1937-8-18 2540 Riverside San Jacinto Mtns, Hidden Lake Comment
  UCR24463  Hesperocnide tenella John C. Roos 1952-4-13 5537 Riverside Riverside, north base of the Box Springs Mtns. 396 Comment
  UCR25126  Asclepias albicans John C. Roos 1965-6-23 s.n. Riverside Sonoran (Colorado) Desert, Eagle Mtns., Lost Palms Canyon, north of Chiriaco Summit Comment
  UCR25174  Bernardia myricifolia John C. Roos 1950-12-2 5027 Riverside Sonoran (Colorado) Desert, Eagle Mountains, Munsen ['Monson'] Canyon 1067 Comment
  UCR25198  Brickellia desertorum John C. Roos 1950-11-25 5026 Riverside N end Perris Blvd, Sunnymead 612 Comment
  UCR25364  Stylomecon heterophylla John C. Roos 1952-4-16 5553 Riverside SW side of Reche Canyon. 488 Comment
  UCR25399  Mollugo cerviana John C. Roos 1946-9-14 3015 Riverside San Jacinto Mtns., Thomas Valley 1375 Comment
  UCR25420  Plagiobothrys canescens John C. Roos 1952-4-30 5605 Riverside Peninsular Range, hills between Camp Haan and Riverside 534 Comment
  UCR25546  Eucrypta chrysanthemifolia var. chrysanthemifolia John C. Roos 1941-9-14 174 Riverside Plateau in Reche Canyon Comment
  UCR25549  Linanthus androsaceus John C. Roos 1941-4-19 167 Riverside Peninsular Range, Loma Linda Hills/Box Springs Mtns.; plateau in Reche Canyon 671 Comment
  UCR25554  Gnaphalium stramineum John C. Roos 1941-4-25 158 Riverside Plateau in Reche Canyon Comment
  UCR25707  Dodecatheon clevelandii John C. Roos 1941-1-18 223 Riverside Plateau in Reche Canyon 610 Comment
  UCR25771  Bebbia juncea John C. Roos 1937-7-12 1508 Riverside Reche Canyon 549 Comment
  UCR25788  Nemacladus ramosissimus John C. Roos 1937-7-11 1507 Riverside Box Springs Mtns, Reche Canyon Comment
  UCR25801  Emmenanthe penduliflora John C. Roos 1952-4-13 5534 Riverside N side of the Box Springs Mountains 457 Comment
  UCR25912  Lupinus arizonicus John C. Roos 1948-5-15 3847 Riverside Sonoran (Colorado) Desert, Eagle Mountains, upper Lost Palms Canyon 1037 Comment
  UCR25952  Lepidium lasiocarpum John C. Roos 1947-2-15 3237 Riverside Sonoran (Colorado) Desert, Lost Palms Canyon, south face of Eagle Mtns., west of Hayfield Dry Lake 997 Comment
  UCR25972  Plagiobothrys leptocladus John C. Roos 1952-4-23 5572 Riverside Perris-Aguanga Basin region, 1 mi SE of Perris 427 Comment
  UCR25991  Lobelia cardinalis John C. Roos 1937-8-23 2402 Riverside San Jacinto Mtns, north base of Mt. San Jacinto, Snow Creek 762 Comment
  UCR26092  Machaeranthera canescens subsp. ziegleri John C. Roos 1946-8-27 2920 Riverside Santa Rosa Mountains, Santa Rosa Mountain 2409 Comment
  UCR26135  Pseudognaphalium biolettii John C. Roos 1952-2-29 5374 Riverside Reche Canyon Comment
  UCR26189  Euphorbia setiloba John C. Roos 1947-11-1 3756 Riverside Sonoran (Colorado) Desert, Eagle Mountains, edge of Lost Palms Wash Comment
  UCR26194  Eschscholzia glyptosperma John C. Roos 1947-2-15 3261 Riverside Sonoran (Colorado) Desert, Eagle Mtns Comment
  UCR26214  Rhamnus ilicifolia John C. Roos 1948-5-15 3833 Riverside Sonoran (Colorado) Desert, Eagle Mountains, upper Lost Palms Canyon 1037 Comment
  UCR26223  Calyptridium monandrum John C. Roos 1947-3-15 3329 Riverside San Jacinto Valley, Valle Vista, east of Hemet 549 Comment
  UCR26282  Gilia capitata subsp. abrotanifolia John C. Roos, L. Roos 1952-4-27 5585 Riverside San Timoteo Canyon, south of Redlands 427 Comment
  UCR26330  Triticum aestivum John C. Roos 1966-4-29 s.n. Riverside Winchester 457 Comment
  UCR27654  Eriogonum thomasii John C. Roos 1966-3-20 s.n. Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, 2 miles southeast of Desert Center 366 Comment
  UCR30480  Ranunculus hebecarpus John C. Roos 1950-5-6 4790 Riverside Santa Ana Mtns., Hagador Canyon 427 Comment
  UCR30492  Lotus purshianus John C. Roos 1952-5-26 5721 Riverside Haas' Ranch, Reche Canyon 457 Comment
  UCR31668  Nemacladus glanduliferus John C. Roos 1948-5-15 3851 Riverside Sonoran (Colorado) Desert, Eagle Mountains, upper Lost Palms Canyon 1037 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
  UCSB37795  Aristida purpurea Roos, John 1965-9-26 Riverside Palm Springs 121 Comment
  UCSB37801  Ericameria paniculata Roos, John 1965-11-6 Riverside Whitewater 304 Comment
  UCSB37889  Krameria bicolor Roos, John 1965-6-23 Riverside Colorado Desert, Lost Palms Canyon in the Eagle Mtns. Comment
  UCSB37926  Erigeron foliosus Roos, John 1965-6-19 Riverside Sky Line Drive, S of Corona, Santa Ana Mountains. Comment
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May 21 2011
  UCSB41544  Fagonia laevis Roos, John 1966-3-26 Riverside Rocky slopes 2 miles S.E. of Desert Center Comment
  UCSB42145  Navarretia hamata Roos, John 1965-6-30 Riverside Ortega Highway, Santa Ana Mtns Comment
  UCSB42146  Navarretia atractyloides Roos, John 1952-5-26 Riverside Haas ranch; Reche Canyon Comment
  UCSB42176  Marah macrocarpa Roos, John 1966-4-23 Riverside Santa Ana Mtns., S of Corona Comment
  UCSB42203  Euonymus occidentalis subsp. parishii Roos, John 1965-7-3 Riverside Dark Canyon, San Jacinto Mtns. Comment
  UCSB42210  Dicoria canescens Roos, John; Roos, Lucille 1957-11-30 Riverside 6 miles N.W. of Thousand Palms, Coachella Valley 152 Comment
  UCSB42261  Atriplex coronata Roos, John 1965-6-30 Riverside Perris Comment
  UCSB45533  Collinsia heterophylla Roos, John 1952-4-13 Riverside Box Springs Mts Comment
  UCSB45553  Trifolium depauperatum var. amplectens Roos, John 1966-3-24 Riverside Flats west of Hemet Comment
  UCSB45580  Brickellia incana Roos, John 1965-6-23 Riverside Colorado Desert; Lost Palms Wash, north of Chiriaco Summit near the Eagle Mtns. Comment
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Mar 26 2011
  UCSB45585  Cyperus erythrorhizos Roos, John 1951-9-25 Riverside Fairmount Park, Riverside 259 Comment
  UCSB45946  Ambrosia acanthicarpa Roos, John 1965-9-26 Riverside Hemet Valley, San Jacinto Mtns. Comment
  UCSB45957  Gutierrezia californica Roos, John 1965-6-21 Riverside The hills 2 miles south of Beaumont Comment
  UCSB46879  Frankenia palmeri Roos, John 1965-6-30 Riverside Perris Comment
  UCSB51392  Bromus catharticus Roos, A. 1937-11-13 Riverside San Bernardino Basin region, Riverside 243 Comment
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May 21 2011
  UCSB51405  Sporobolus cryptandrus Roos, John 1965-8-15 Riverside Along a roadside in Gilman Hot Springs Comment
  UCSB51409  Eriochloa aristata Roos, John 1965-9-26 Riverside Indio Comment
  POM301541  Solanum triflorum J. C. Roos 1937-6-7 1453 Riverside Aguanga. Comment
  RSA0018450  Cordylanthus rigidus subsp. setiger J. C. Roos 1965-8-18 s.n. Riverside Thomas Valley, San Jacinto Mtns. Comment
  RSA0037331  Astragalus insularis var. harwoodii John C. Roos 1958-3-15 s.n. Riverside Chuckwalla Mtns., 3 miles SE of Desert Center. Comment
  RSA0057839  Cenchrus ciliaris J. C. Roos 1965-10-17 Riverside Along the roadside, 20 miles west of Blythe. Comment
  RSA0059251  Orobanche parishii John C. Roos 1948-5-15 3848 Riverside Upper Lost Palms Canyon, Eagle Mts., Colorado Desert. Comment
  RSA0105465  Eriastrum densifolium subsp. austromontanum J. C. Roos 1965-7-22 s.n. Riverside Mountain Center Comment
  RSA444802  Schedonorus arundinaceus J. C. Roos 1950-4-15 4743 Riverside West end of Fairmount Park Lake Comment
  RSA450130  Bidens pilosa J. C. Roos 1965-8-18 s.n. Riverside In Corona. Comment
  RSA450449  Eragrostis cilianensis J. C. Roos 1965-7-7 s.n. Riverside San Jacinto. Comment
  RSA450452  Eragrostis curvula J. C. Roos 1965-9-16 s.n. Riverside Lakeview Comment
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Sep 19 2018
  RSA69815  Paspalum dilatatum J. C. Roos 1951-9-25 5262 Riverside West end Fairmount Park 259 Comment
  RSA85148  Sisymbrium altissimum J. C. Roos 1952-5-7 5613 Riverside Box Springs Mountains, north of Canyon Crest Heights 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
  RSA92594  Hemizonia fasciculata J. C. Roos 1952-5-14 5669 Riverside San Jacinto river bottomlands 1 miles southeast of Perris. 426 Comment
  RSA92748  Marsilea vestita J. C. Roos 1952-5-21 5704 Riverside San Jacinto River bottomland 1.5 miles southeast of Perris 426 Comment
  SEINET8465882 Image available Datura discolor J. C. Roos 1965-11-6 Riverside Desert, 26 miles west of Blythe 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-BC106153  Brickellia desertorum John Roos; Lucille Roos 1950-10-7 4999 San Bernardino West end of Palm Ave. at foot of hills, 2 miles south of Colton 304 Comment
  CAS-BOT-BC108726  Ribes cereum J. C. Roos 1965-6-26 s.n. San Bernardino Upper Santa Ana Basin near Fish Creek, San Bernardino Mountains. Comment
  CAS-BOT-BC112369  Fimbristylis thermalis John C. Roos; L. Roos 1951-8-25 5197 San Bernardino Arrowhead Hot Springs, San Bernardino Mtns. 609 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-BC148010  Rubus leucodermis J. C. Roos 1965-7-17 s.n. San Bernardino Barton Flats, San Bernardino Mtns. Comment
  CAS-BOT-BC154420  Phacelia ramosissima var. latifolia J. C. Roos 1965-6-27 s.n. San Bernardino Loma Linda Hills. 304 Comment
  CAS-BOT-BC172131  Clarkia dudleyana J. C. Roos 1981-7-1 s.n. San Bernardino Igo's near Mountain Home Village and Mill Creek, San Bernardino Mtns. Comment
  CAS-BOT-BC209078  Digitaria sanguinalis J. C. Roos 1965-7-5 s.n. San Bernardino Loma Linda Comment
  CAS-BOT-BC216439  Achnatherum aridum J. C. Roos; A. R. Roos 1950-8-5 4894 San Bernardino 1.5 miles SW of Coliseum Mine, Clark Mountains, Mojave Desert 1737 Comment
  CAS-BOT-BC216705  Lupinus excubitus var. excubitus J. C. Roos; A. C. Sanders 1965-6-6 s.n. San Bernardino Mill Creek near Fallsvale, 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-BC228481  Plagiobothrys parishii J. C. Roos 1949-4-30 4270 San Bernardino Rabbit Spr., Lucerne Valley 883 Comment
  CAS-BOT-BC229520  Gilia triodon J. C. Roos 1949-5-28 3541 San Bernardino N slope of Clark Mountain 1584 Comment
  CAS-BOT-BC233730  Portulaca halimoides John C. Roos 1950-9-1 4951 San Bernardino Valley Wells, eastern Mohave Desert 1127 Comment
  CAS-BOT-BC235450  Sporobolus cryptandrus John C. Roos 1950-9-1 4948 San Bernardino Valley Wells Station, Mojave Desert 1127 Comment
  CAS-BOT-BC243046  Poa secunda subsp. secunda J. C. Roos 1967-5-30 s.n. San Bernardino Ridge on the E end of Broom Flat, N of Onyx Peak, San Bernardino Mountains Comment
  CAS-BOT-BC247400  Poa pratensis J. C. Roos 1965-6-26 s.n. San Bernardino Upper Santa Ana River near Heart Bar Park, San Bernardino Mtns. Comment
  CAS-BOT-BC247402  Poa pratensis J. C. Roos 1965-7-18 s.n. San Bernardino At Moonridge in Bear Valley, San Bernardino Mountains Comment
  CAS-BOT-BC252279  Eriogonum heermannii var. sulcatum J. C. Roos; A. R. Roos 1950-8-6 4916 San Bernardino Ridge N.E. of Kingston Peak, Kingston Mts., eastern Mohave [Mojave] Desert 2133 Comment
  CAS-BOT-BC262704  Muhlenbergia californica J. C. Roos 1962-9-29 s.n. San Bernardino Mill Creek, San Bernardino Mtns. 2042 Comment
  CAS-BOT-BC270949  Eriogonum mohavense John Roos; Lucille Roos 1952-5-17 5675 San Bernardino 10 miles west of Adelanto, Mohave Desert 944 Comment
  CAS-BOT-BC276237  Achnatherum X bloomeri John Roos; Lucille Roos 1951-7-28 5067 San Bernardino Head of Rathbone Creek, San Bernardino Mountains 2560 Comment
  CAS-BOT-BC283000  Eriochloa lemmonii John C. Roos 1950-8-22 4945 San Bernardino Highland, San Bernardino Valley 457 Comment
  CAS-BOT-BC294857  Erigeron breweri var. porphyreticus John Roos; Lucille Roos 1949-6-27 4509 San Bernardino High ridge, Kingston Mts. NE San Bernardino Co. 2133 Comment
  CAS-BOT-BC297385  Eriophyllum confertiflorum J. C. Roos 1981-8-1 s.n. San Bernardino Upper Santa Ana basin, near Fish Creek, San Bernardino Mts Comment
  CAS-BOT-BC299050  Ericameria nauseosa var. hololeuca John C. Roos 1950-9-3 4972 San Bernardino Canyon on S slope of Clark Mts, NW of Mountain Pass, E Mojave Desert 1889 Comment
  CAS-BOT-BC305797  Helianthus nuttallii J. C. Roos 1965-9-22 s.n. San Bernardino Near the cement plant, Victorville Comment
  CAS-BOT-BC310856  Heterotheca sessiliflora subsp. fastigiata J. C. Roos 1965-9-11 s.n. San Bernardino In Mill Creek Canyon, San Bernardino Mtns. Comment
  CAS-BOT-BC328144  Sanvitalia abertii John Roos 1950-9-1 4954 San Bernardino Near 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-BC328917  Tetradymia argyraea J. C. Roos; R. Weatherby 1949-9-2 3573 San Bernardino NE of Kingston Peak, Kingston Mtns., northeast part of county 2133 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-BC38171  Caulanthus amplexicaulis J. C. Roos 1947-6-21 3690 San Bernardino San Bernardino Mountains. Roadside near Big Bear Lake. 1889 Comment
  CAS-BOT-BC413577  Persicaria amphibia J. C. Roos 1966-9-10 s.n. San Bernardino Big Bear Lake, San Bernardino Mtns. Comment
  CAS-BOT-BC60250  Lunaria annua J. C. Roos 1966-5-14 s.n. San Bernardino San Bernardino Mountains. Lytle Creek. Comment
  CAS-BOT-BC62399  Quercus chrysolepis John C. Roos 1947-3-8 3306 San Bernardino South edge of Mojave Desert at Deep Creek Public Camp, north base of San Bernardino Mts. 914 Comment
  CLARK-A1528-1025  Sagittaria cuneata John C. Roos 1937-7-29 1978 San Bernardino San Bernardino Mountains 2316 Comment
  CLARK-A1528-1051  Acer saccharum John C. Roos 1949-10-4 San Bernardino Oak Glen 1462 Comment
  CLARK-A1528-1078  Haplopappus pinifolius John C. Roos 1936-11-4 1530 San Bernardino Cajon Pass Comment
  CLARK-A1528-1097  Erigeron philadelphicus John C. Roos 1941-4-26 146 San Bernardino 304 Comment
  CLARK-A1528-1103  Ambrosia confertiflora John C. Roos 1943-4-10 2613 San Bernardino Loma Linda 365 Comment
  CLARK-A1528-1138  Pyrola picta var. aphylla John C. Roos 1937-7-21 1999 San Bernardino San Bernardino Mountains 1920 Comment
  CLARK-A1528-1140  Elatine brachysperma John C. Roos 1937-7-18 397 San Bernardino San Antonio Canyon Comment
  CLARK-A1528-1155  Lupinus pallidus John C. Roos 1937-4-25 688 San Bernardino Mojave Desert 365 Comment
  CLARK-A1528-1180  Quercus chrysolepis John C. Roos 1946-9-3 2982 San Bernardino San Bernardino Mountains 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-A1528-1275  Bromus japonicus John C. Roos 1943-6-22 2711 San Bernardino San Bernardino County Hospital 304 Comment
  CLARK-A1528-1292  Claytonia spathulata var. tenuifolia John C. Roos 1937-6-5 1474 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-1296  Abies concolor John C. Roos 1949-9-2 3570 San Bernardino Kingston Peak 2163 Comment
  CLARK-A1528-1303  Erodium cicutarium John C. Roos 1940-8-24 247 San Bernardino Loma Linda Comment
  CLARK-A1528-1321  Phoradendron bolleanum subsp. densum John C. Roos 1941-11-15 867 San Bernardino San Bernardino Mountains| Deep Creek 1158 Comment
  CLARK-A1528-1323  Prunella vulgaris subsp. vulgaris John C. Roos 1959-7-2 San Bernardino Loma Linda 365 Comment
  CLARK-A1528-1340  Nemacladus ramosissimus John C. Roos 1941-5-6 154 San Bernardino Loma Linda Comment
  CLARK-A1528-1366  Leptodactylon pungens John C. Roos 1943-7-4 2723 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-1370  Acer macrophyllum John C. Roos 1946-8-31 2936 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-1382  Trianthema portulacastrum John C. Roos 1954-11-21 6256 San Bernardino Loma Linda 335 Comment
  CLARK-A1528-1400  Amaranthus hybridus John C. Roos 1937-8-27 737 San Bernardino San Bernardino Comment
  CLARK-A1528-1416  Rhus ovata John C. Roos 1966-3-27 San Bernardino Loma Linda Hills 304 Comment
  CLARK-A1528-1443  Lomatium nevadense var. parishii John C. Roos 1967-5-30 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-1458  Tauschia parishii John C. Roos 1947-6-27 3725 San Bernardino San Bernardino Mountains|South Fork 2194 Comment
  CLARK-A1528-1471  Apocynum androsaemifolium John C. Roos 1946-9-21 3052 San Bernardino San Bernardino Mountains 2042 Comment
  CLARK-A1528-1473  Apocynum androsaemifolium John C. Roos 1947-8-9 3738 San Bernardino San Bernardino Mountains 2072 Comment
  CLARK-A1528-1481  Amsonia brevifolia John C. Roos 1937-6-5 1543 San Bernardino San Bernardino Mountains Comment
Read comments
Jan 23 2015
  CLARK-A1528-1494  Agave utahensis var. nevadensis John C. Roos 1949-5-29 4368 San Bernardino Clark Mountains 1523 Comment
  CLARK-A1528-1498  Nolina parryi subsp. wolfii John C. Roos 1949-6-27 4502 San Bernardino Kingston Mountains 1828 Comment
  CLARK-A1528-1503  Allium fimbriatum John C. Roos 1952-5-17 5683 San Bernardino Mojave Desert Comment
  CLARK-A1528-1517  Bloomeria crocea John C. Roos 1965-6-29 San Bernardino Loma Linda Comment
  CLARK-A1528-1570  Artemisia dracunculus John C. Roos 1948-10-16 San Bernardino Oak Glen Comment
  CLARK-A1528-1580  Artemisia ludoviciana John C. Roos 1948-9-18 4058 San Bernardino Clark Mountains 1767 Comment
  CLARK-A1528-1601  Artemisia tridentata John C. Roos 1946-9-21 3049 San Bernardino San Bernardino Mountains 1828 Comment
  CLARK-A1528-1642  Bahia neomexicana John C. Roos 1950-9-1 4955 San Bernardino Clark Mountains 1615 Comment
  CLARK-A1528-1660  Brickellia californica John C. Roos 1948-9-18 4057 San Bernardino Clark Mountains 1523 Comment
  CLARK-A1528-1666  Brickellia desertorum John C. Roos 1957-10-19 6658 San Bernardino Loma Linda 438 Comment
  CLARK-A1528-1719  Chrysothamnus nauseosus John C. Roos, Lucille Roos 1950-10-17 5010 San Bernardino Little Pigeon Pass 320 Comment
  CLARK-A1528-1721  Chrysothamnus nauseosus John C. Roos 1950-10-11 5002 San Bernardino Cajon Pass 975 Comment
  CLARK-A1528-1723  Chrysothamnus nauseosus John C. Roos 1950-10-11 5003 San Bernardino Cajon Pass 1066 Comment
  CLARK-A1528-1727  Chrysothamnus nauseosus subsp. speciosus John C. Roos 1950-9-3 4972 (=4407) San Bernardino Clark Mountain 1889 Comment
  CLARK-A1528-1760  Chaenactis santolinoides John C. Roos 1965-6-26 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-1801  Dyssodia papposa John C. Roos, Lucille Roos 1952-5-15 5056 a San Bernardino Loma Linda 335 Comment
  CLARK-A1528-1817  Erigeron breweri John C. Roos 1949-6-27 4508 San Bernardino Kingston Mountains 1828 Comment
  CLARK-A1528-1819  Erigeron divergens John C. Roos 1946-9-28 3099 San Bernardino San Bernardino Mountains 2072 Comment
  CLARK-A1528-1823  Erigeron foliosus var. covillei John C. Roos 1943-5-22 2650 San Bernardino Little San Bernardino Mountains Comment
  CLARK-A1528-1838  Eriophyllum lanatum var. obovatum John C. Roos 1965-7-18 San Bernardino San Bernardino Mountains 1837 Comment
  CLARK-A1528-1855  Galinsoga parviflora John C. Roos 1954-5-11 6116 San Bernardino Loma Linda 320 Comment
  CLARK-A1528-1880  Haplopappus cuneatus John C. Roos 1948-9-25 4076 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-1882  Haplopappus cuneatus John C. Roos 1942-10-17 1737 San Bernardino San Bernardino Mountains 2042 Comment
  CLARK-A1528-196  Conyza canadensis John C. Roos 1951-9-17 5212 San Bernardino Loma Linda 320 Comment
  CLARK-A1528-1964  Hymenopappus filifolius var. lugens John C. Roos 1937-7-20 1174 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-1988  Lepidospartum squamatum John C. Roos 1965-10-2 San Bernardino San Bernardino Mountains 975 Comment
  CLARK-A1528-2035  Artemisia tridentata subsp. tridentata Alfred R. Roos 1948-10-29 San Bernardino Cajon Pass 1219 Comment
  CLARK-A1528-2071  Psilostrophe cooperi John C. Roos 1949-6-22 4457 San Bernardino New York Mountains 1523 Comment
  CLARK-A1528-2073  Raillardella argentea John C. Roos 1941-8-27 34 San Bernardino San Bernardino Mountains 3352 Comment
  CLARK-A1528-2081  Senecio douglasii John C. Roos 1965-7-21 San Bernardino Cajon Pass Comment
  CLARK-A1528-2104  Stephanomeria cichoriacea John C. Roos 1943-7-27 2689 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-2156  Haplopappus cuneatus John C. Roos 1941-11-15 870 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-2185  Machaeranthera tephrodes John C. Roos 1949-4-9 4215 San Bernardino Colorado River Comment
  CLARK-A1528-2192  Sanvitalia abertii John C. Roos 1950-9-1 4954 San Bernardino Clark Mountain 1645 Comment
  CLARK-A1528-2196  Tetradymia argyraea John C. Roos 1950-8-6 4908 San Bernardino Kingston Mountains 1523 Comment
  CLARK-A1528-2219  Cryptantha jamesii var. abortiva John C. Roos 1937-7-21 San Bernardino Lost Creek 1981 Comment
  CLARK-A1528-2221  Cryptantha micrantha subsp. lepida John C. Roos 1965-7-18 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-2246  Lappula redowskii John C. Roos 1959-5-16 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-2255  Pectocarya setosa John C. Roos 1952-5-17 5677 San Bernardino Mojave Desert 944 Comment
  CLARK-A1528-2308  Descurainia richardsonii subsp. incisa John C. Roos 1947-8-9 3737 San Bernardino San Bernardino Mountains 2285 Comment
  CLARK-A1528-2337  Rorippa obtusa John C. Roos 1946-9-15 3033 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-2350  Thelypodium lasiophyllum John C. Roos 1947-3-8 3315 San Bernardino San Bernardino Mountains 1005 Comment
  CLARK-A1528-2352  Thysanocarpus curvipes John C. Roos 1947-3-8 3313 San Bernardino San Bernardino Mountains 1005 Comment
  CLARK-A1528-2448  Arenaria macradenia var. parishiorum John C. Roos 1937-4-25 2104 San Bernardino Providence Mountains Comment
  CLARK-A1528-2451  Cerastium vulgatum John C. Roos 1965-7-31 San Bernardino San Bernardino Mountains 2285 Comment
  CLARK-A1528-2453  Herniaria cinerea John C. Roos 1954-6-5 6123 San Bernardino Loma Linda 320 Comment
  CLARK-A1528-2464  Silene conoidea John C. Roos 1967-4-30 San Bernardino Loma Linda Comment
  CLARK-A1528-2468  Silene lemmonii John C. Roos 1941-6-1 93 San Bernardino San Bernardino Mountains Comment
Read comments
Feb 20 2015
  CLARK-A1528-2488  Stellaria media John C. Roos 1952-2-27 5356 San Bernardino Loma Linda 335 Comment
  CLARK-A1528-2493  Forsellesia nevadensis John C. Roos 1949-6-19 4402 San Bernardino Clark Mountain Range 1950 Comment
  CLARK-A1528-2508  Atriplex torreyi John C. Roos, Alfred R. Roos 1950-8-8 4930 San Bernardino Mojave Desert 792 Comment
  CLARK-A1528-2518  Atriplex argentea subsp. expansa John C. Roos 1951-9-15 5209 San Bernardino Loma Linda 304 Comment
  CLARK-A1528-2528  Atriplex lentiformis John C. Roos, Lucille Roos 1954-10-2 6252 San Bernardino San Bernardino Comment
  CLARK-A1528-2533  Atriplex argentea subsp. expansa Alfred R. Roos 1947-7-22 San Bernardino Loma Linda 304 Comment
  CLARK-A1528-2550  Bassia hyssopifolia John C. Roos 1965-7-3 San Bernardino Loma Linda Comment
  CLARK-A1528-2565  Chenopodium incanum John C. Roos 1937-8-25 1198 San Bernardino Barnwell Comment
  CLARK-A1528-2650  Boisduvalia densiflora John C. Roos 1937-7-27 1987 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-2690  Croton californicus var. mohavensis John C. Roos 1937-8-25 2022 San Bernardino Comment
  CLARK-A1528-2733  Astragalus coccineus John C. Roos 1941-4-5 186 San Bernardino Little San Bernardino Mountains Comment
  CLARK-A1528-2796  Lotus corniculatus Alfred R. Roos 1961-7-5 San Bernardino Loma Linda Comment
  CLARK-A1528-2828  Lupinus densiflorus subsp. lacteus John C. Roos 1966-4-28 San Bernardino Calimesa Comment
  CLARK-A1528-2833  Lupinus flavoculatus John C. Roos 1949-6-20 4415 San Bernardino Little San Bernardino Mountains 1676 Comment
  CLARK-A1528-2892  Trifolium variegatum John C. Roos 1937-5-28 1688 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-2963  Geranium richardsonii John C. Roos 1937-7-21 1183 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-2967  Eriodictyon angustifolium John C. Roos 1949-6-20 4410 San Bernardino New York Mountains 1615 Comment
  CLARK-A1528-2981  Nama hispida John C. Roos 1949-4-9 4221 San Bernardino Vidal 15' quadrangle Comment
  CLARK-A1528-303  Tetradymia axillaris John C. Roos 1970-5-11 San Bernardino Pinon Hills 1066 Comment
  CLARK-A1528-3062  Geum macrophyllum subsp. perincisum John C. Roos 1948-7-10 3922 San Bernardino San Bernardino Mountains 2133 Comment
  CLARK-A1528-3070  Rosa woodsii subsp. gratissima John C. Roos 1937-7-30 1973 San Bernardino San Bernardino Mountains 2133 Comment
  CLARK-A1528-3125  Salvia pachyphylla John C. Roos 1949-6-27 4507 San Bernardino Kingston Mountains 2133 Comment
  CLARK-A1528-3153  Monardella odoratissima John C. Roos 1965-7-17 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-3178  Monardella macrantha John C. Roos, Lucille Roos 1952-6-14 5770 San Bernardino San Bernardino Mountains 1158 Comment
  CLARK-A1528-3188  Calochortus invenustus John C. Roos 1950-6-24 4841 San Bernardino San Bernardino Mountains 2224 Comment
  CLARK-A1528-3193  Lilium parryi John C. Roos 1937-7-22 2351 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-3220  Eremalche exilis John C. Roos 1965-6-16 San Bernardino Adelanto Comment
  CLARK-A1528-3235  Malacothamnus orbiculatus John C. Roos 1946-9-21 3048 San Bernardino San Bernardino Mountains 1828 Comment
  CLARK-A1528-3241  Sidalcea malviflora John C. Roos 1965-7-18 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-3273  Boerhavia wrightii John C. Roos 1950-8-4 San Bernardino Clark Mountain Range Comment
  CLARK-A1528-3277  Mirabilis bigelovii John C. Roos 1949-5-14 4298 San Bernardino Hesperia Comment
  CLARK-A1528-3281  Oxybaphus pumilus John C. Roos 1967-9-30 San Bernardino 1828 Comment
  CLARK-A1528-3283  Oxybaphus pumilus John C. Roos 1937-8-25 11 San Bernardino Mountain Pass Comment
  CLARK-A1528-3287  Forestiera neomexicana John C. Roos 1946-9-21 3066 San Bernardino Lucerne Valley Comment
  CLARK-A1528-3330  Camissonia kernensis subsp. gilmanii John C. Roos 1952-4-22 5568 San Bernardino 304 Comment
  CLARK-A1528-3351  Oenothera hookeri John C. Roos 1946-10-5 3106 San Bernardino San Bernardino Mountains 1356 Comment
  CLARK-A1528-3353  Zauschneria californica subsp. latifolia John C. Roos 1936-8-15 571 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-3388  Spiranthes porrifolia John C. Roos 1947-8-9 3735 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-3397  Oxalis corniculata John C. Roos 1949-11-18 4697 San Bernardino Loma Linda Hills 335 Comment
  CLARK-A1528-3408  Dendromecon rigida John C. Roos 1937-4-17 1385 San Bernardino Highlands Comment
  CLARK-A1528-341  Arabis parishii John C. Roos 1970-5-23 San Bernardino San Bernardino Mountains 2773 Comment
  CLARK-A1528-3433  Plantago aristata John C. Roos 1950-6-11 4831 San Bernardino Loma Linda 304 Comment
  CLARK-A1528-3445  Navarretia atractyloides John C. Roos 1948-6-13 3878 San Bernardino Fontana Comment
  CLARK-A1528-3485  Linanthus parryae John C. Roos, Lucille Roos 1952-5-10 5645 San Bernardino Adelanto 914 Comment
  CLARK-A1528-3525  Ipomopsis aggregata John C. Roos 1949-5-29 4378 San Bernardino Comment
  CLARK-A1528-3530  Langloisia punctata John C. Roos 1965-6-16 San Bernardino Mojave Desert Comment
  CLARK-A1528-3548  Pinus coulteri John C. Roos 1965-7-17 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-3632  Pseudotsuga macrocarpa John C. Roos 1965-12-11 San Bernardino San Bernardino Mountains 1097 Comment
  CLARK-A1528-3651  Eriogonum heermannii subsp. argense John C. Roos 1946-9-21 3078 San Bernardino 1523 Comment
  CLARK-A1528-3664  Eriogonum kennedyi var. alpigenum John C. Roos 1946-9-4 2962 San Bernardino San Bernardino Mountains 3352 Comment
  CLARK-A1528-3688  Eriogonum parishii John C. Roos 1936-8-15 San Bernardino Glen Martin Comment
  CLARK-A1528-3699  Eriogonum reniforme John C. Roos 1937-4-25 2101 San Bernardino Essex Comment
  CLARK-A1528-3725  Eriogonum wrightii subsp. subscaposum John C. Roos 1937-7-15 386 San Bernardino San Gabriel Mountains Comment
  CLARK-A1528-3748  Nemacladus rubescens John C. Roos 1937-4-25 1793 San Bernardino Essex Comment
  CLARK-A1528-3764  Oxytheca trilobata John C. Roos 1943-5-23 2672 San Bernardino Little San Bernardino Mountains Comment
  CLARK-A1528-3805  Pityrogramma triangularis John C. Roos 1949-6-27 4521 San Bernardino Kingston Range 1645 Comment
  CLARK-A1528-3825  Lewisia brachycalyx John C. Roos 1939-5-26 715 San Bernardino San Bernardino Mountains 2285 Comment
  CLARK-A1528-3830  Lewisia rediviva subsp. minor John C. Roos 1967-6-30 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-3893  Ceanothus greggii John C. Roos 1967-5-13 San Bernardino San Bernardino Mountains 914 Comment
  CLARK-A1528-3938  Polygala acanthoclada John C. Roos 1949-6-20 San Bernardino New York Mountains 1523 Comment
  CLARK-A1528-3962  Kelloggia galioides John C. Roos 1937-7-22 1172 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4004  Ivesia argyrocoma John C. Roos 1965-7-18 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4018  Potentilla gracilis subsp. nuttallii John C. Roos 1965-7-18 San Bernardino San Bernardino Mountains 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-A1528-4039  Rosa californica John C. Roos 1965-7-18 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4052  Salix exigua John C. Roos 1937-4-27 619 San Bernardino Colorado River Comment
  CLARK-A1528-4085  Styrax officinalis John C. Roos 1959-5-16 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4090  Heuchera abramsii John C. Roos 1941-8-27 40 San Bernardino Greyback Ridge Comment
  CLARK-A1528-4110  Parnassia cirrata John C. Roos 1946-9-4 2972 San Bernardino San Bernardino Mountains 2438 Comment
  CLARK-A1528-4122  Ribes cereum John C. Roos 1941-5-30 100 San Bernardino San Bernardino Mountains 2285 Comment
  CLARK-A1528-4126  Ribes cereum John C. Roos 1940-5-11 845 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4154  Ribes velutinum John C. Roos 1954-6-26 4503 San Bernardino California 1981 Comment
  CLARK-A1528-4158  Antirrhinum coulterianum John C. Roos 1965-6-6 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4179  Castilleja foliolosa John C. Roos 1937-4-17 1384 San Bernardino Highland Comment
  CLARK-A1528-4187  Collinsia childii John C. Roos, Lucille Roos 1953-6-18 5922 San Bernardino San Bernardino Mountains 1523 Comment
  CLARK-A1528-4189  Collinsia heterophylla var. austromontana John C. Roos 1956-5-26 6579 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-A1528-4259  Mimulus longiflorus John C. Roos 1947-2-22 3289 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4268  Mimulus primuloides John C. Roos 1937-7-28 2352 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4284  Orthocarpus purpurascens John C. Roos 1966-4-6 San Bernardino Kramer Hills 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-A1528-4310  Penstemon labrosus John C. Roos 1965-7-17 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4326  Veronica americana John C. Roos 1965-6-26 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4349  Lycium cooperi John C. Roos 1948-6-11 San Bernardino Comment
  CLARK-A1528-4363  Physalis hederifolia var. cordifolia John C. Roos 1948-9-18 4070 San Bernardino Clark Mountain Comment
  CLARK-A1528-4377  Solanum xanti var. montanum John C. Roos 1968-9-28 San Bernardino Forest Home Comment
  CLARK-A1528-4383  Celtis reticulata John C. Roos 1962-8-4 San Bernardino Yucaipa 822 Comment
  CLARK-A1528-4387  Hesperocnide tenella John C. Roos 1969-5-17 San Bernardino Loma Linda Hills 365 Comment
  CLARK-A1528-4398  Verbena bracteata John C. Roos 1949-6-20 4413 San Bernardino Clark Mountain 1523 Comment
  CLARK-A1528-4409  Viola douglasii John C. Roos 1937-5-15 1188 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4413  Viola purpurea John C. Roos 1937-5-15 1189 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-443  Ricinus communis John C. Roos 1951-10-4 5317 San Bernardino San Bernardino 320 Comment
  CLARK-A1528-4442  Agropyron parishii John C. Roos 1939-6-16 914 San Bernardino Crestline 1523 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-A1528-4462  Aristida adscensionis John C. Roos 1951-1-20 5030 San Bernardino San Bernardino Mountains 609 Comment
  CLARK-A1528-4476  Aristida parishii John C. Roos, Lucille Roos 1952-5-11 5655 San Bernardino Loma Linda 426 Comment
  CLARK-A1528-4510  Bouteloua barbata John C. Roos 1950-9-1 4950 San Bernardino Valley Well Station 1127 Comment
  CLARK-A1528-4522  Bouteloua eriopoda John C. Roos 1950-8-4 San Bernardino Clark Mountain Comment
  CLARK-A1528-4526  Bouteloua gracilis John C. Roos 1949-5-28 3552 San Bernardino Clark Mountain Range Comment
  CLARK-A1528-4577  Dactylis glomerata John C. Roos 1938-6-4 473 San Bernardino Loma Linda Comment
  CLARK-A1528-4579  Deschampsia cespitosa John C. Roos 1940-8-3 1554 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4581  Deschampsia danthonioides John C. Roos 1937-7-27 451 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4587  Digitaria sanguinalis John C. Roos 1965-7-5 San Bernardino Loma Linda 304 Comment
  CLARK-A1528-4598  Echinochloa crus-galli John C. Roos 1965-7-4 San Bernardino Loma Linda 304 Comment
  CLARK-A1528-4610  Elymus triticoides John C. Roos 1965-6-16 San Bernardino Victorville 914 Comment
  CLARK-A1528-4620  Eriochloa acuminata John C. Roos 1939-9-16 San Bernardino Highland Comment
  CLARK-A1528-4647  Festuca brachyphylla John C. Roos 1946-9-4 2958 San Bernardino San Bernardino Mountains 2743 Comment
  CLARK-A1528-4679  Hilaria jamesii John C. Roos 1949-5-29 3538 San Bernardino Clark Mountain 1676 Comment
  CLARK-A1528-4687  Hordeum californicum John C. Roos 1940-8-3 1583 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4702  Koeleria macrantha John C. Roos 1937-5-28 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4710  Leptochloa fascicularis John C. Roos 1946-9-21 3072 San Bernardino Rabbit Springs 883 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-A1528-4747  Muhlenbergia asperifolia John C. Roos 1938-8-14 580 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4749  Muhlenbergia californica John C. Roos 1962-9-29 San Bernardino San Bernardino Mountains 2042 Comment
  CLARK-A1528-4761  Muhlenbergia porteri John C. Roos 1950-8-4 San Bernardino Clark Mountain Comment
  CLARK-A1528-4777  Oryzopsis miliacea John C. Roos 1959-6-27 San Bernardino Colton Comment
  CLARK-A1528-4789  Paspalum dilatatum John C. Roos 1949-11-16 4696 San Bernardino Loma Linda 323 Comment
  CLARK-A1528-4802  Phalaris minor John C. Roos 1953-5-13 5918 San Bernardino Loma Linda 304 Comment
  CLARK-A1528-4806  Phleum pratense John C. Roos 1946-10-5 3110 San Bernardino San Bernardino Mountains 1356 Comment
  CLARK-A1528-4822  Poa fendleriana John C. Roos 1965-6-26 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4847  Puccinellia simplex John C. Roos 1950-4-6 4723 San Bernardino Rabbit Spring 883 Comment
  CLARK-A1528-4849  Cotula australis John C. Roos 1952-2-27 5357 San Bernardino Loma Linda 335 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-A1528-4883  Erigeron divergens John C. Roos 1937-7-20 1176 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4898  Lupinus odoratus John C. Roos 1949-4-30 4256 San Bernardino Apple Valley 914 Comment
  CLARK-A1528-4904  Acer glabrum John C. Roos 1963-8-18 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4952  Petradoria pumila subsp. pumila John C. Roos 1948-9-10 4066 San Bernardino Clark Mountain Comment
  CLARK-A1528-5003  Hieracium horridum John C. Roos 1949-7-4 4541 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-5013  Brickellia oblongifolia var. linifolia John C. Roos 1949-6-27 4519 San Bernardino Kingston Mountains 1767 Comment
  CLARK-A1528-5040  Sitanion hystrix John C. Roos 1965-6-16 San Bernardino Cajon Pass Comment
  CLARK-A1528-5066  Calocedrus decurrens John C. Roos 1965-6-6 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-5125  Clematis lasiantha John C. Roos 1947-4-12 3437 San Bernardino San Bernardino Mountains 914 Comment
  CLARK-A1528-5130  Berberis nevinii John C. Roos 1950-2-11 4705 San Bernardino 426 Comment
  CLARK-A1528-5151  Populus tremuloides John C. Roos 1946-9-28 3094 San Bernardino San Bernardino Mountains 2240 Comment
  CLARK-A1528-5153  Veronica persica John C. Roos 1947-3-21 3376 San Bernardino Loma Linda Comment
  CLARK-A1528-5178  Verbascum thapsus John C. Roos 1965-7-24 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-5199  Ribes roezlii John C. Roos 1947-4-12 3438 San Bernardino San Bernardino Mountains 1523 Comment
  CLARK-A1528-5216  Sedum spathulifolium John C. Roos 1937-7-15 2376 San Bernardino San Gabriel Mountains Comment
  CLARK-A1528-5243  Alnus rhombifolia var. bernardina John C. Roos 1936-8-15 570 San Bernardino San Bernardino Mountains 1981 Comment
  CLARK-A1528-5269  Stipa coronata John C. Roos 1965-6-26 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-5281  Tridens muticus John C. Roos 1949-5-29 3535 San Bernardino Clark Mountain 1402 Comment
  CLARK-A1528-5325  Quercus chrysolepis John C. Roos 1965-6-6 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-5330  Quercus X morehus John C. Roos 1965-6-13 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-5348  Salvia X bernardina John C. Roos, Lucille Roos 1951-10-3 5314 San Bernardino Loma Linda 320 Comment
  CLARK-A1528-5399  Atriplex lentiformis John C. Roos, Lucille Roos 1954-9-25 6251 San Bernardino San Bernardino Valley 426 Comment
  CLARK-A1528-5404  Cressa truxillensis John C. Roos 1954-7-18 6202 San Bernardino Mojave Desert 60 Comment
  CLARK-A1528-5431  Gentiana amarella John C. Roos 1946-9-4 2971 San Bernardino San Bernardino Mountains 2438 Comment
  CLARK-A1528-5496  Artemisia californica John C. Roos 1966-1-2 San Bernardino Loma Linda Comment
  CLARK-A1528-5548  Stipa coronata var. depauperata John C. Roos 1949-6-27 4517 San Bernardino Kingston Range 2072 Comment
  CLARK-A1528-5578  Muhlenbergia pauciflora John C. Roos 1948-9-18 4055 San Bernardino Clark Mountain 1523 Comment
  CLARK-A1528-5588  Poa nevadensis John C. Roos 1937-7-28 1951 San Bernardino San Bernardino Mountains 2194 Comment
  CLARK-A1528-5597  Rhus integrifolia John C. Roos 1950-2-25 4709 San Bernardino Santa Ana River 396 Comment
  CLARK-A1528-5625  Gnaphalium californicum John C. Roos 1941-8-9 77 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-5653  Atriplex confertifolia John C. Roos 1937-3-1 San Bernardino Victorville Comment
  CLARK-A1528-5678  Quercus palmeri John C. Roos 1967-5-20 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-5705  Fraxinus anomala John C. Roos 1948-9-18 San Bernardino Clark Mountain Comment
  CLARK-A1528-5725  Galium stellatum John C. Roos 1937-4-24 483 San Bernardino Sheephole Mountains Comment
  CLARK-A1528-5732  Castilleja affinis John C. Roos 1943-4-11 2605 San Bernardino Norton Air Force Base Comment
  CLARK-A1528-59  Eragrostis diffusa John C. Roos 1951-9-18 5218 San Bernardino Loma Linda 335 Comment
  CLARK-A1528-6886  Atriplex elegans subsp. fasciculata John C. Roos 1965-7-6 San Bernardino Barstow Comment
  CLARK-A1528-7755  Horkelia bolanderi subsp. parryi John C. Roos 1940-7-16 1854 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-A1528-7770  Potentilla glandulosa subsp. nevadensis John C. Roos 1937-7-22 539 San Bernardino San Bernardino Mountains 2285 Comment
  CLARK-A1528-7780  Asclepias californica John C. Roos 1965-7-24 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-7801  Eragrostis mexicana John C. Roos 1950-5-16 4811 San Bernardino Highland 457 Comment
  CLARK-A1528-7821  Galium parishii John C. Roos, Lucille Roos 1949-6-27 4514 San Bernardino Kingston Range 1981 Comment
  CLARK-A1528-7866  Arabis repanda John C. Roos 1949-7-16 4556 San Bernardino San Bernardino Mountains 2255 Comment
  CLARK-A1528-7880  Verbena lasiostachys John C. Roos 1965-9-11 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-82  Paspalum dilatatum John C. Roos 1951-9-20 5231 San Bernardino Loma Linda 335 Comment
  CLARK-A1528-90  Setaria geniculata John C. Roos 1951-9-23 5240 San Bernardino Loma Linda Comment
  HSC78526  Eriastrum eremicum J. C. Roos 1965-6-16 San Bernardino 4 mi. N of Adelanto, Mojave Desert Comment
  LA102261  Sidalcea neomexicana John C. Roos; 1950-5-13 4805 San Bernardino Lucerne Valley, Rabbit Springs 883 Comment
  LA102281  Isocoma acradenia John C. Roos; 1948-9-19 4040 San Bernardino Soda Springs, near Baker 283 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
  POM251785  Nemacladus californicus J. C. Roos 1937-5-25 21 San Bernardino Kramer Junction Comment
  POM25676  Ribes quercetorum J. C. Roos 1940-5-4 879 San Bernardino Reche Canyon, San Bernardino Valley. Comment
  POM261203  Phyllodoce breweri J. C. Roos 1941-6-5 109 San Bernardino San Bernardino Mountains: Above Dollar Lake. 2896 Comment
  POM261394  Cryptogramma acrostichoides J. C. Roos 1941-6-5 113 San Bernardino San Bernardino Mountains: Above Dollar Lake. 2896 Comment
Read comments
Mar 4 2008
  POM261419  Leucopoa kingii J. C. Roos 1941-6-5 112 San Bernardino Barton Flats, San Bernardino Mountains 1982 Comment
  POM262785  Suaeda moquinii J. C. Roos 1940-8-22 245 San Bernardino Loma Linda Comment
  POM262869  Pseudognaphalium biolettii J. C. Roos 1941-2-1 227 San Bernardino Rocky mountain south of Reche Canyon Comment
  POM262888  Pycnanthemum californicum J. C. Roos 345 San Bernardino Seven Oaks. Comment
  POM262896  Muhlenbergia asperifolia J. C. Roos 1938-8-14 580 San Bernardino Bear Valley Comment
  POM262899  Pedicularis semibarbata J. C. Roos 1939-5-26 716 San Bernardino Bluff Lake. Comment
  POM262904  Malaxis brachypoda J. C. Roos 1937-7-22 329 San Bernardino South Fork, Santa Ana River 2439 Comment
  POM262923  Simmondsia chinensis J. C. Roos 1941-4-5 184 San Bernardino Coyote Well. Comment
  POM262928  Aralia californica J. C. Roos 1937-7-15 383 San Bernardino Bonita Falls, Lytle Creek. Comment
  POM262937  Arenaria ursina J. C. Roos 1939-5-26 719 San Bernardino Bear Valley, San Bernardino Mts. Comment
  POM262949  Plagiobothrys nothofulvus J. C. Roos 1941-3-22 218 San Bernardino Reche Canyon. Comment
  POM262962  Salix scouleriana J. C. Roos 1939-5-26 723 San Bernardino Bluff Lake. Comment
  POM262970  Lupinus densiflorus var. lacteus J. C. Roos 1941-4-19 164 San Bernardino Near Loma Linda, San Bernadino Co. Comment
  POM262992  Bromus orcuttianus var. hallii J. C. Roos 1937-7-20 362 San Bernardino Camp Angelus, San Bernardino Mountains. Comment
  POM263018  Deschampsia elongata J. C. Roos 1937-7-22 407 San Bernardino South Fork Santa Ana River 2134 Comment
  POM263022  Polemonium occidentale J. C. Roos 1937-7-22 333 San Bernardino South Fork Meadows, San Bernardino Mountains. Comment
  POM263038  Galium stellatum J. C. Roos 1937-4-24 483 San Bernardino Sheep Hole Mts., East of 29 Palms. Comment
  POM263080  Phoradendron californicum J. C. Roos 1937-4-26 523 San Bernardino Twenty-nine Palms Comment
  POM263086  Agrostis exarata J. C. Roos 1937-7-31 412 San Bernardino Crestline, San Bernardino Mountains. Comment
  POM263093  Tetradymia canescens J. C. Roos 1937-7-15 385 San Bernardino Stockton Flats, San Gabriel Mountains. Comment
  POM263107  Ambrosia confertiflora J. C. Roos 1940-9-28 224 San Bernardino Loma Linda. Comment
  POM263134  Dodecatheon clevelandii J. C. Roos 1941-2-8 202 San Bernardino Reche Canyon. San Bernardino Valley. Comment
  POM263187  Eriogonum umbellatum var. minus J. C. Roos 1937-7-15 355 San Bernardino Stockton Flats 2134 Comment
  POM263274  Euphorbia peplus J. C. Roos 1937-6-26 625 San Bernardino Smiley Park, Redlands Comment
  POM263280  Mentzelia albicaulis J. C. Roos 1937-4-26 546 San Bernardino Providence Mts. 610 Comment
  POM263332  Allium peninsulare var. peninsulare J. C. Roos 1941-5-6 136 San Bernardino Near Loma Linda. Comment
  POM263493  Elatine brachysperma J. C. Roos 1937-7-28 325 San Bernardino Bluff Lake, San Bernardino Mountains. Comment
  POM264280  Phacelia ambigua J. C. Roos 1937-4-23 677 San Bernardino 29 Palms, Mojave Desert Comment
  POM265643  Claytonia parviflora subsp. tenuifolia J. C. Roos 1937-6-5 1474 San Bernardino Crestline 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
  POM266333  Festuca rubra J. C. Roos 1940-8-17 1595 San Bernardino South fork, Sana Ana River. 2256 Comment
  POM266613  Leptochloa fusca subsp. uninervia J. C. Roos 1937-7-31 2358 San Bernardino Santa Ana River near San Bernardino. Comment
  POM266633  Yucca whipplei var. whipplei J. C. Roos 1937-4-17 1378 San Bernardino San Timoteo Canyon, near Redlands. Comment
  POM274192  Artemisia rothrockii J. C. Roos 1946-8-29 2777 San Bernardino East end of Bear Valley 2073 Comment
  POM301477  Mimulus parishii J. C. Roos 1937-7-16 2424 San Bernardino Upper Lytle Creek. Comment
  POM301523  Apocynum sibiricum J. C. Roos 1937-7-27 963 San Bernardino shore of Baldwin Lake. 2165 Comment
  POM301537  Lycopus americanus J. C. Roos 1937-8-24 1201 San Bernardino South of San Bernardino. 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
  POM302487  Epilobium ciliatum subsp. glandulosum J. C. Roos 1943-7-31 2693 San Bernardino Kuffle Canyon, near Lake Arrowhead. San Bernardino Mountains. 1677 Comment
  POM302494  Geranium carolinianum J. C. Roos 1943-4-27 2630 San Bernardino Swamp along Waterman Ave. Comment
  POM302500  Streptanthus bernardinus J. C. Roos 1943-7-31 2692 San Bernardino Kuffle Canyon, near Lake Arrowhead. San Bernardino Mountains. 1677 Comment
  POM302506  Eriogonum wrightii var. nodosum J. C. Roos 1943-10-16 2741 San Bernardino Little San Bernardino Mountains. 1524 Comment
  POM302518  Acourtia microcephala J. C. Roos 1943-7-15 2734 San Bernardino San Timoteo Canyon, south of Redlands Comment
  POM302522  Brickellia desertorum J. C. Roos 1943-8-17 2709 San Bernardino Reche Canyon, off San Bernardino Valley Comment
  POM302563  Linanthus pungens subsp. hookeri J. C. Roos 1943-7-4 2723 San Bernardino Greenspot, north base of Sugarloaf Mountains Comment
  POM431202  Panicum capillare J. C. Roos 1965-9-15 s.n. San Bernardino Victorville. Comment
  RSA155740  Ericameria parishii J. C. Roos 1955-9-3 6571 San Bernardino 2 miles W of Loma Linda. 335 Comment
  RSA262934  Epilobium canum subsp. latifolium J. C. Roos 1936-8-15 571 San Bernardino Glen Martin, San Bernardino Mountains. Comment
  RSA309654  Poa secunda J. C. Roos 1947-4-26 3694 San Bernardino Igo's, Mill Creek Canyon, San Bernardino Mtns. 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
  RSA40541  Triteleia laxa J. C. Roos, R. Gustin 1948-4-27 2911 San Bernardino Foothills, Loma Linda 351 Comment
  RSA425019  Hordeum brachyantherum subsp. californicum J. C. Roos, A. C. Sanders 1965-7-18 s.n. San Bernardino Bear Valley, San Bernardino Mtns. Near Fawnskin. Comment
  RSA431195  Gamochaeta pensylvanica J. C. Roos, L. Roos 1952-6-23 5785 San Bernardino Loma Linda 320 Comment
  RSA44248  Tridens muticus J. C. Roos 1949-5-29 3535 San Bernardino north side Clark Mts., eastern San Bernardino County 1402 Comment
  RSA44252  Erioneuron pilosum J. C. Roos 1949-5-28 3537 San Bernardino rocky slopes and ridges, with Pinus monophylla, Juniperus utahensis, Coleogyne, etc. north side of Clark Mtn., eastern Mojave Desert, Comment
  RSA44267  Bouteloua gracilis J. C. Roos 1949-6-18 3553 San Bernardino Southeastern Clark Mountains, eastern Mojave Desert. 1829 Comment
  RSA44272  Cryptantha gracilis J. C. Roos 1949-6-24 3559 San Bernardino Summit of Clark Mt, Eastern Mojave Desert Comment
  RSA443540  Rupertia rigida J. C. Roos 1965-7-31 s.n. San Bernardino Barton Flats, Camp Oceola Comment
  RSA444465  Penstemon caesius J. C. Roos 1965-7-17 s.n. San Bernardino South Fork, near Barton Flats 2439 Comment
  RSA444477  Chamaesyce supina J. C. Roos 1965-7-28 s.n. San Bernardino Loma Linda: Garden in Loma Linda Comment
  RSA444673  Salpichroa origanifolia J. C. Roos 1965-6-29 s.n. San Bernardino Bloomington. Comment
  RSA444792  Prunus virginiana var. demissa J. C. Roos, L. Roos 1956-5-26 6581 San Bernardino Oakland Glen School. Comment
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Nov 26 2014
  RSA44871  Mentzelia micrantha J. C. Roos 1948-6-26 3886 San Bernardino City Creek. 762 Comment
  RSA44902  Malacothrix saxatilis var. tenuifolia J. C. Roos 1947-6-27 3710 San Bernardino Mill Creek, San Bernardino Mts. 915 Comment
  RSA44922  Allium parryi J. C. Roos 1947-6-21 3704 San Bernardino Fawnskin, Bear Valley. 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
  RSA449963  Lemna trisulca J. C. Roos 1942-11-28 2587 San Bernardino Deep Creek, San Bernardino Mountains. 914 Comment
  RSA450092  Ranunculus cymbalaria var. saximontanus J. C. Roos 1965-6-26 s.n. San Bernardino Upper Sana Ana Canyon, Heart Bar area. Comment
  RSA450108  Lotus nevadensis J. C. Roos 1965-6-26 s.n. San Bernardino San Bernardino Mountains probably near Barton Flats. Comment
  RSA450110  Lotus nevadensis J. C. Roos 1965-6-26 s.n. San Bernardino San Bernardino Mountains probably near Barton Flats. Comment
  RSA450116  Lupinus lepidus var. confertus J. C. Roos 1965-7-18 s.n. San Bernardino Along Bear Valley, San Bernardino Mtns. Comment
  RSA450119  Vicia americana J. C. Roos 1965-7-17 s.n. San Bernardino Barton Flats, 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
  RSA450151  Polygonum punctatum J. C. Roos s.n. San Bernardino Victorville. Mojave River bottom. Comment
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Nov 20 2016
  RSA450155  Antirrhinum coulterianum J. C. Roos 1965-6-6 s.n. San Bernardino San Bernardino Mtns, Mill Creek near Fallsvale. Comment
  RSA450161  Keckiella antirrhinoides J. C. Roos 1965-6-6 s.n. San Bernardino San Bernardino Mtns, Mill Creek near Fallsvale. Comment
  RSA450165  Mimulus floribundus J. C. Roos 1965-9-11 s.n. San Bernardino Mill Creek. Comment
  RSA450169  Penstemon grinnellii J. C. Roos 1965-7-17 s.n. San Bernardino San Bernardino Mtns: Kilpecker Creek. Comment
  RSA450177  Astragalus didymocarpus var. dispermus J. C. Roos 1966-4-6 s.n San Bernardino Kramer Hills. Comment
  RSA450195  Lupinus sparsiflorus subsp. sparsiflorus J. C. Roos 1947-2-22 3295 San Bernardino Deep Creek, San Bernardino Mtns Comment
  RSA450237  Geranium richardsonii J. C. Roos 1965-7-17 s.n. San Bernardino South Fork, San Bernardino Mts. 2591 Comment
  RSA450249  Potentilla gracilis var. elmeri J. C. Roos 1965-7-18 s.n. San Bernardino Moonridge, Bear Valley, San Bernardino Mountains. Comment
  RSA450309  Mimulus guttatus J. C. Roos 1943-4-9 2614 San Bernardino Slong swampy ditch, Waterman Ave. Comment
  RSA450423  Erigeron divergens J. C. Roos 1965-6-26 s.n. San Bernardino San Bernardino Mountains probably near Barton Flats. Comment
  RSA450475  Salazaria mexicana J. C. Roos 1965-6-16 s.n. San Bernardino Adelanto. Comment
  RSA450492  Hemizonia fasciculata J. C. Roos 1965-6-27 s.n. San Bernardino Loma Linda Hills. 305 Comment
  RSA450497  Hulsea vestita subsp. parryi J. C. Roos 1965-6-26 s.n. San Bernardino San Bernardino Mountains probably near Barton Flats. Comment
  RSA450658  Achnatherum coronatum J. C. Roos 1981-07 s.n. San Bernardino Upper Santa Ana Canyon near Heart Bar Park Comment
  RSA450755  Packera ionophylla J. C. Roos 1964-6-26 s.n. San Bernardino Upper Santa Ana River, San Bernardino Mtns. Comment
  RSA450759  Stephanomeria cichoriacea J. C. Roos 1965-10-2 s.n. San Bernardino E Fork Mtn. Home Canyon Comment
  RSA45210  Lasthenia californica J. C. Roos 1949-4-30 4277 San Bernardino 4 miles west of Hesperia. Comment
  RSA45218  Penstemon incertus J. C. Roos, L. Roos 1949-5-14 4299 San Bernardino 5 miles west of The Windmill; Burns-Pipes Wash, east end San Bernardino Mts. 1220 Comment
  RSA45541  Artemisia nova J. C. Roos, Lucille Roos 1948-9-18 4069 San Bernardino Edge of wide wash, north side of Clark mountain, near Greens Mine 1524 Comment
  RSA457392  Agrostis stolonifera J. C. Roos 1965-7-18 s.n. San Bernardino Moonridge, Bear Valley, San Bernardino Mountains. Comment
  RSA47293  Ivesia jaegeri J. C. Roos 1949-6-24 4478 San Bernardino North side of Clark Mountains 2287 Comment
  RSA47310  Chenopodium incanum var. occidentale J. C. Roos 1949-6-22 4456 San Bernardino Barnwell, New York Mts. Comment
  RSA47318  Hesperostipa comata subsp. comata J. C. Roos 1949-6-19 4396 San Bernardino SE base of Clark Mountain Comment
  RSA47331  Cheilanthes wootonii J. C. Roos, Lucille Roos 1949-6-22 4441 San Bernardino New York Mountains, N side of the mouth of Keystone Canyon 1677 Comment
  RSA47336  Lepidium montanum var. canescens J. C. Roos 1949-6-22 4438 San Bernardino Lecyr Well, New York Mountains. 1524 Comment
  RSA47418  Galium munzii J. C. Roos 1949-6-21 4433 San Bernardino New York Mountains, Keystone Canyon 1829 Comment
  RSA47431  Mimulus guttatus J. C. Roos, Lucille Roos 1949-6-22 4449 San Bernardino New York Mountains; Keystone Canyon 1738 Comment
  RSA47435  Oenothera cespitosa subsp. crinita J. C. Roos, L. Roos 1949-5-28 4374 San Bernardino North side Clark Mountain. 1616 Comment
  RSA47436  Verbena bracteata J. C. Roos, L. Roos 1949-6-20 4413 San Bernardino Mountain Pass, south of Clark Mtn. 1524 Comment
  RSA47439  Allium nevadense J. C. Roos, L. Roos 1949-5-29 4369 San Bernardino Coliseum Mine, Clark Mountain. 1677 Comment
  RSA47450  Ivesia patellifera J. C. Roos 1949-6-27 4504 San Bernardino North side of Kingston Mountains 1829 Comment
  RSA47458  Bahiopsis parishii J. C. Roos, L. Roos 1949-6-26 4496 San Bernardino North side of Clark Mtn. 1463 Comment
  RSA47461  Chrysothamnus parryi subsp. imulus J. C. Roos 1949-7-23 4582 San Bernardino Holcomb Valley. 2195 Comment
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Feb 2 2015
  RSA47465  Erigeron breweri var. covillei J. C. Roos, L. Roos 1949-6-23 4467 San Bernardino Near Rock Springs, Mid-hills, New York Mountains. 1463 Comment
  RSA47466  Erigeron breweri var. covillei J. C. Roos 1949-6-20 4414 San Bernardino Ivanpah Mtns, North side of Kokoweef Peak 1677 Comment
  RSA47469  Chrysothamnus nauseosus subsp. hololeucus J. C. Roos 1949-6-19 4407 San Bernardino Southeast slope of Clark Mountain. 1890 Comment
  RSA47470  Brickellia oblongifolia var. linifolia J. C. Roos 1949-5-28 4335 San Bernardino North slope of washes, Clark Mtn, near Green's Mine 1616 Comment
  RSA47478  Psilostrophe cooperi J. C. Roos, Lucille Roos 1949-6-22 4457 San Bernardino Lecyr Well, New York Mountains. 1524 Comment
  RSA47538  Prunus fasciculata J. C. Roos, L. Roos 1949-6-18 4391 San Bernardino Southeastern base of Clark Mountain, eastern Mojave Desert. 1829 Comment
  RSA47544  Oenothera avita subsp. avita J. C. Roos, L. Roos 1949-6-22 4450 San Bernardino New York Mountains; Keystone Canyon 1738 Comment
  RSA48172  Tetradymia argyraea J. C. Roos, Weatherby 1949-9-2 3572 San Bernardino Summit of Kingston Peak 2232 Comment
  RSA48678  Salix lasiolepis J. C. Roos 1949-8-14 4617 San Bernardino Keystone Spring, Keystone Canyon, New York Mts. 1707 Comment
  RSA48681  Eriogonum heermannii var. argense J. C. Roos 1949-8-13 4612 San Bernardino Keystone Canyon, at Copper Queen Mine, New York Mountains. Comment
  RSA48683  Eriogonum wrightii var. wrightii J. C. Roos 1949-8-13 4610 San Bernardino Copper Queen Mine, Keystone Canyon, New York Mtns. 1829 Comment
  RSA48695B  Solidago spectabilis J. C. Roos 1949-8-13 4603 San Bernardino Copper Queen Mine, Keystone Canyon, New York Mountains. 1829 Comment
  RSA48887  Ephedra nevadensis J. C. Roos 1949-9-2 4636 San Bernardino Tecopa Pass, Kingston Mts. 1524 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
  RSA52785  Schkuhria multiflora var. multiflora J. C. Roos 1950-9-1 4955 San Bernardino Coliseum Mine, Clark Mountain. 1616 Comment
  RSA52800  Boerhavia coulteri J. C. Roos 1950-9-3 4980 San Bernardino Valley Wells 1128 Comment
  RSA53583  Polypogon viridis J. C. Roos 1949-11-16 4695 San Bernardino Loma Linda. 329 Comment
  RSA591730  Sambucus mexicana J. C. Roos 1965-6-27 s.n. San Bernardino Loma Linda Hills. 305 Comment
  RSA591761  Draba corrugata J. C. Roos 1965-7-17 17 San Bernardino South Fork, San Bernardino Mts. 2591 Comment
  RSA591765  Atriplex spinifera J. C. Roos 1965-9-18 s.n. San Bernardino 5 miles N of Kramer Junction. Comment
  RSA592427  Atriplex confertifolia J. C. Roos 1965-7-6 s.n. San Bernardino At the cement plant, Victorville. Comment
  RSA592486  Draba corrugata J. C. Roos 1965-7-17 s.n. San Bernardino South Fork, San Bernardino Mts. 2591 Comment
  RSA594034  Artemisia bigelovii J. C. Roos 1948-9-18 4059 San Bernardino Clark Mountian. North slope 1829 Comment
  RSA61538  Tetradymia argyraea J. C. Roos 1950-9-2 4965 San Bernardino 1 mi SE of Coliseum Mine, Clark Mountains 1616 Comment
  RSA61544  Schedonorus pratensis J. C. Roos, L. Roos 1950-6-3 4825 San Bernardino Rabbit Springs, Mojave Desert 884 Comment
  RSA648060  Festuca brachyphylla J. C. Roos 1936-7-30 1512 San Bernardino Mt. San Gorgonio-Greyback Ridge. 3352 Comment
  RSA648066  Bromus japonicus J. C. Roos 1943-6-22 2711 San Bernardino County Hospital. Comment
  RSA658703  Arenaria kingii J. C. Roos 1949-6-21 3557 San Bernardino New York Mountain (New York Peak) 2225 Comment
  RSA658863  Tauschia parishii J. C. Roos 1947-6-27 3725 San Bernardino Ridge west of South Fork [of Santa Ana River], San Bernardino Mtns. Comment
  RSA659193  Lotus oblongifolius J. C. Roos 1965-7-26 s.n. San Bernardino Upper Santa Ana Canyon, Heart Bar area. San Bernardino Mtns. Comment
  RSA659464  Stylomecon heterophylla J. C. Roos 1973-4-14 s.n. San Bernardino Loma Linda hills. Comment
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May 21 2011
  RSA659487  Eriogonum mohavense J. C. Roos, L. Roos 1952-5-17 5675 San Bernardino 10 miles west of Adelanto, Mojave Desert. Comment
  RSA659665  Mimulus tilingii J. C. Roos 1949-7-4 4540 San Bernardino Along stream at High Creek. 2744 Comment
  RSA659786  Lotus strigosus J. C. Roos 1947-2-22 3280 San Bernardino Along Deep Creek, San Bernardino Mtns. Comment
  RSA662067  Trifolium wormskioldii J. C. Roos 1965-6-26 s.n. San Bernardino Upper Santa Anita Canyon, Heart Bar area. San Bernardino Mtns. Comment
  RSA662071  Lupinus excubitus J. C. Roos 1965-7-18 s.n. San Bernardino Along Bear Valley, San Bernardino Mtns. Comment
  RSA664938  Agrostis hyemalis J. C. Roos 1937-7-25 s.n. San Bernardino Clarks Grade. (S. of Big Bear Lake) San Bernardino Mountains. Comment
  RSA69824  Mentha rotundifolia J. C. Roos 1951-10-2 5311 San Bernardino Loma Linda 320 Comment
  RSA69868  Amaranthus fimbriatus J. C. Roos 1951-9-19 5222 San Bernardino In irrigated orhard with Amaranthus Palmeri, Tribulus terrestris, Loma Linda Comment
  RSA78231  Eragrostis mexicana subsp. virescens J. C. Roos 1951-8-4 5081 San Bernardino South end Mountain View Ave. 366 Comment
  RSA78328  Plagiobothrys torreyi J. C. Roos 1951-6-9 5062 San Bernardino Running Springs 1829 Comment
  RSA78334  X Stiporyzopsis bloomeri J. C. Roos, L. Roos 1951-7-28 5067 San Bernardino Head of Rathbone Creek, San Bernardino Mountains 2561 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
  RSA85164  Muhlenbergia porteri J. C. Roos, A. R. Roos 1950-8-4 4889 San Bernardino N side of Clark Mountain, east Mojave Desert. Comment
  RSA85276  Glechoma hederacea J. C. Roos 1954-4-7 6059 San Bernardino Loma Linda Hospital ground, Loma Linda. San Bernardino Valley. 351 Comment
  RSA85279  Atriplex torreyi J. C. Roos, A. Roos 1950-8-8 4930 San Bernardino 1 mile N. of Oro Grande. 793 Comment
  RSA85642  Brickellia incana J. C. Roos, A. R. Roos 1950-8-5 4902 San Bernardino Near Coliseum Mine, N side Cark Mts. E Mohave Desert 1555 Comment
  RSA86876  Celtis reticulata J. C. Roos 1950-9-2 4964 San Bernardino East slope Clark Mts., about 1.5 S. E of Coliseum Mine, eastern Mohave Desert. 1524 Comment
  RSA86879  Bouteloua aristidoides J. C. Roos 1950-9-1 4959 San Bernardino Vicinity of Coliseum Mine, Clark Mountains 1646 Comment
  RSA89969  Chrysothamnus nauseosus subsp. hololeucus J. C. Roos 1950-10-11 5005 San Bernardino Mojave Desert S of Victorville at jct of Apple Valley cutoff road with Hwy 66 915 Comment
  RSA89970  Chrysothamnus nauseosus subsp. hololeucus J. C. Roos 1950-10-11 5004 San Bernardino Mojave Desert S of Victorville at jct of Hwys 66 and 395 1067 Comment
  RSA89985  Eriogonum heermannii var. floccosum J. C. Roos 1950-9-3 4979 San Bernardino South of Clark Mountain, NW of Mountain Pass 1860 Comment
  RSA89986  Hedeoma nana subsp. californica J. C. Roos 1950-9-3 4977 San Bernardino South of Clark Mountains, NW of Mountain Pass 1829 Comment
  SEINET226237  Artemisia tridentata subsp. tridentata A. R. Roos 1950-8-6 San Bernardino East Mohave Desert; North side of the Kingston Range, pass on the road to Tecopa and the slopes above 1524 Comment
  UC1010217  Quercus turbinella John and Lucille Roos 1949-6-21 4430 San Bernardino Keystone Canyon New York Mts. 1767 Comment
  UC1010237  Festuca kingii John and Lucille Roos 1951-7-28 5069 San Bernardino head of Rathbone Creek San Bernardino Mts., Rathbone Creek 2560 Comment
  UC1010300  Amaranthus torreyi John C. Roos 1950-9-1 4958 San Bernardino vicinity Coliseum Mine (e Mohave Desert); Mohave Desert, Clark Mts. 1615 Comment
  UC1010301  Sanvitalia abertii John C. Roos 1950-9-1 4954 San Bernardino near Coliseum Mine; Clark Mts, Mohave Desert 1645 Comment
  UC1010305  Lepidospartum latisquamum John C. Roos 1950-9-3 4971 San Bernardino nw Mountain Pass (canyon on s slope Clark Mts., eastern Mohave Desert); eastern Mohave Desert, canyon on s slope Clark Mts. nw of Mo 1889 Comment
  UC1010306  Artemisia bigelovii John C. Roos 1950-9-3 4973 San Bernardino nw of Mountain Pass (canyon on s side of Clark Mtn.); eastern Mohave Desert, Clark Mtn. 1828 Comment
  UC1023412  Achnatherum aridum J. C. and A. R. Roos 1950-8-5 4894 San Bernardino 1 1/2 mi sw Coliseum Mine; Mojave Desert, Clark Mts. 1737 Comment
  UC1023428  Bouteloua eriopoda John C. Roos 1950-9-3 4975 San Bernardino canyon slope s Clark Mtn. (nw of Mountain Pass); eastern Mohave Desert 1828 Comment
  UC1043021  Sisymbrium altissimum John and Lucille Roos 1952-5-17 5682 San Bernardino Mohave Desert, near junction of Highways 395 and 66 Mohave Desert 1005 Comment
  UC1043026  Aristida purpurea var. nealleyi John and Lucille Roos 1952-5-11 5655 San Bernardino 2 1/2 mi se Loma Linda; Scott's Canyon 426 Comment
  UCD133369  Hypochaeris glabra J. C. Roos 1948-4-29 2901 San Bernardino carpenters tract in Loma Linda. 335 Comment
  UCR18640  Ericameria laricifolia John C. Roos 1950-9-1 4956 San Bernardino Eastern Mojave Desert, vicinity of Coloseum Mine, Clark Mountain 1616 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
  UCR18684  Chrysothamnus nauseosus var. speciosus John C. Roos 1950-9-3 4972 San Bernardino Eastern Mojave Desert, Clark Mountain, south slope 1890 Comment
  UCR18687  Lepidospartum latisquamum John C. Roos 1950-9-3 4971 (=4408) San Bernardino Eastern Mojave Desert, Clark Mountain, south slope 1890 Comment
  UCR18748  Senecio multilobatus John C. Roos 1949-5-28 4350 San Bernardino Eastern Mojave Desert, Clark Mountain [north side] 1890 Comment
  UCR18764  Coronopus didymus John C. Roos 1947-6-9 3651 San Bernardino San Bernardino Valley, Edge of lawn at County Court House in San Bernardino Comment
  UCR18767  Lesquerella kingii subsp. bernardina John C. Roos 1959-5-16 s.n. San Bernardino San Bernardino Mountains, Van Dusen Canyon, Bear Valley 2256 Comment
  UCR18784  Cheilanthes feei John C. Roos 1949-6-19 4400 San Bernardino Eastern Mojave Desert, Clark Mountain 1890 Comment
  UCR18795  Pectocarya linearis John C. Roos 1948-4-10 3785 San Bernardino San Bernardino Valley, SW of Loma Linda Comment
  UCR18835  Ivesia santolinoides John C. Roos 1965-7-18 s.n. San Bernardino San Bernardino Mtns., Arrowbear Comment
  UCR18836  Potentilla saxosa John C. Roos 1949-6-27 4505 San Bernardino Eastern Mojave Desert, north side of Kingston Mountains 1982 Comment
  UCR18850  Garrya flavescens John C. Roos 1950-2-17 s.n. San Bernardino San Bernardino Mtns., Oak Glen Road, Yucaipa Comment
  UCR18858  Heracleum maximum 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
  UCR18861  Galium wrightii John C. Roos 1948-9-18 4046 San Bernardino Eastern Mojave Desert, north side of Clark Mountain 2134 Comment
  UCR18865  Machaeranthera gracilis John C. Roos 1949-6-18 4393 San Bernardino Eastern Mojave Desert, Mountain Pass, on the south side of Clark Mountain 1524 Comment
  UCR18866  Pyrola asarifolia subsp. asarifolia John C. Roos 1965-7-17 s.n. San Bernardino San Bernardino Mountains, South Fork of the Santa Ana River in the San Gorgonio Wilderness Area, above Barton Flats 2622 Comment
  UCR18869  Osmorhiza chilensis 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
  UCR18870  Helenium bigelovii 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
  UCR18885  Datisca glomerata John C. Roos 1967-9-23 s.n. San Bernardino San Bernardino Mtns, Holcomb Creek 1585 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
  UCR18916  Myosurus minimus subsp. apus John C. Roos, L. Roos 1950-4-6 4724 San Bernardino Lucerne Valley, Rabbit Springs 884 Comment
  UCR18919  Amelanchier utahensis John C. Roos 1965-6-26 s.n. San Bernardino San Bernardino Mtns, Upper Santa Ana River Basin, near Fish Creek 2134 Comment
  UCR18924  Geum macrophyllum 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
  UCR18953  Cornus sericea subsp. sericea John C. Roos 1949-7-16 4557 San Bernardino San Bernardino Mtns., Moonridge Ski Area, Bear Valley 2256 Comment
  UCR18955  Nemacladus ramosissimus John C. Roos 1941-5-6 154 San Bernardino San Bernardino Valley, Loma Linda 396 Comment
  UCR19005  Sedum niveum 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
  UCR19006  Pseudostellaria jamesiana John C. Roos 1965-7-18 s.n. San Bernardino San Bernardino Mtns, Moonridge, Bear Valley 2226 Comment
  UCR19009  Cressa truxillensis John C. Roos 1949-5-14 4314 San Bernardino Southern Mojave Desert, 3 mi. west of Lucerne Valley 915 Comment
  UCR19029  Camissonia strigulosa John C. Roos 1943-4-11 2611 San Bernardino San Bernardino Valley, Army Air Depot east of San Bernardino 351 Comment
  UCR19045  Fraxinus anomala John C. Roos 1949-5-28 4353 San Bernardino Eastern Mojave Desert, north slope Clark Mountain 1829 Comment
  UCR19049  Fraxinus velutina John C. Roos 1949-8-20 4623 San Bernardino San Bernardino Mtns/Mojave desert, West Fork Mojave River near junction with Deep Creek 1000 Comment
  UCR19074  Castilleja tenuis John C. Roos 1940-7-16 1848 San Bernardino San Bernardino Mtns., Green Valley Comment
  UCR19090  Hornungia procumbens John C. Roos 1950-4-26 4763 San Bernardino Mojave Desert, Rabbit Springs, north of Lucerne Valley 884 Comment
  UCR19184  Hesperochiron californicus John C. Roos 1949-4-30 4269 San Bernardino Mojave Desert, Lucerne Valley, Rabbit Springs 887 Comment
  UCR19187  Filago depressa John C. Roos 1950-5-13 4804 San Bernardino Southern Mojave Desert, Lucerne Valley, Rabbit Springs 884 Comment
  UCR19193  Navarretia hamata John C. Roos 1948-6-13 3878 San Bernardino San Bernardino Valley, Fontana Power Plant 488 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
  UCR19224  Ribes velutinum John C. Roos 1949-6-27 4503 San Bernardino Eastern Mojave Desert, Kingston Mountains 1982 Comment
  UCR19238  Antennaria rosea John C. Roos 1939-6-3 s.n. San Bernardino San Bernardino Mtns., Fish Creek Comment
  UCR19244  Celtis reticulata John C. Roos 1949-6-25 4493 San Bernardino Eastern Mojave Desert, east slope of Clark Mountain [probably Colosseum Gorge] 1524 Comment
  UCR19260  Eriogonum microthecum var. simpsonii John C. Roos 1949-8-13 4613 San Bernardino Eastern Mojave Desert, Keystone Canyon, New York Mtns. 1768 Comment
  UCR19268  Eriogonum kennedyi var. alpigenum John C. Roos 1936-7-30 957 San Bernardino San Bernardino Mtns., Grayback Ridge 3354 Comment
  UCR19275  Enneapogon desvauxii John C. Roos 1950-9-3 4970 San Bernardino Eastern Mojave Desert, south side of Clark Mountain, NW of Mountain Pass 1829 Comment
  UCR19276  Festuca pratensis John C. Roos, L. Roos 1950-6-3 4825 San Bernardino Southern Mojave Desert, Rabbit Springs, Lucerne Valley 884 Comment
  UCR19301  Schismus barbatus John C. Roos 1950-5-4 4775 San Bernardino San Bernardino Valley, San Bernardino, 11th and G Streets 305 Comment
  UCR19341  Festuca saximontana John C. Roos 1946-9-4 2959 San Bernardino San Bernardino Mtns., San Gorgonio Ridge 3445 Comment
  UCR19345  Festuca kingii John C. Roos 1965-6-26 s.n. San Bernardino San Bernardino Mtns, Upper Santa Ana River Canyon near Heart Bar Park Comment
  UCR19357  Festuca elatior John C. Roos 1950-5-20 4815 San Bernardino San Bernardino Valley, edge of lawn on Central Street, San Bernardino 305 Comment
  UCR19362  Trisetum canescens John C. Roos 1947-6-27 3715 San Bernardino San Bernardino Mountains, Stetson Creek drainage, Barton Flats 1890 Comment
  UCR19512  Ericameria palmeri var. pachylepis John C. Roos 1965-10-3 s.n. San Bernardino San Bernardino Valley, Loma Linda 305 Comment
  UCR19552  Physalis hederifolia John C. Roos 1949-5-28 4358 San Bernardino Eastern Mojave Desert, north side of Clark Mountain 1677 Comment
  UCR19685  Elymus stebbinsii John C. Roos 1939-6-16 914 San Bernardino San Bernardino Mtns., Crestline, Hardt's Cabin 1524 Comment
  UCR19686  Elymus salinus John C. Roos 1949-6-20 3549 San Bernardino Eastern Mojave Desert, New York Mountains, Keystone Canyon 1738 Comment
  UCR20334  Chenopodium incanum var. occidentale John C. Roos, A. R. Roos 1950-8-7 4922 San Bernardino Northeastern Mojave Desert, Beck Spring, Kingston Mountains 1372 Comment
  UCR20464  Aristida purpurea var. purpurea John C. Roos, A. R. Roos 1950-8-5 4906 San Bernardino Eastern Mojave Desert, north slopes of the Clark Mountain along power line road 1280 Comment
  UCR20529  Portulaca halimoides John C. Roos, L. Roos 1952-10-18 5900 San Bernardino Mojave Desert, Hidden Valley Campground, Little San Bernardino Mtns. 1220 Comment
  UCR20611  Stipa X bloomeri John C. Roos 1958-7-4 s.n. San Bernardino Mojave Desert, 11.7 mi south of Kramer Junction on Hwy 395 East of road about 30 yards Comment
  UCR20613  Festuca rubra 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
  UCR23255  Clematis pauciflora John C. Roos 1952-6-8 5738 San Bernardino San Bernardino Valley, San Timoteo Canyon south of Redlands 457 Comment
  UCR23279  Boerhavia wrightii John C. Roos, L. Roos 1950-10-21 5018 San Bernardino Mojave Desert, Twentynine Palms 579 Comment
  UCR23280  Centaurea repens John C. Roos 1950-10-27 5019 San Bernardino San Bernardino Valley, San Bernardino, corner of 9th Street and Waterman Avenue 336 Comment
  UCR23317  Phalaris minor John C. Roos 1952-4-21 5564 San Bernardino San Bernardino Valley, Loma Linda 305 Comment
  UCR23323  Elymus condensatus John C. Roos 1952-5-16 5671 San Bernardino San Bernardino Valley, 1 mi west of Colton 320 Comment
  UCR23332  Ericameria cuneata John C. Roos 1949-8-13 4609 San Bernardino Eastern Mojave Desert, Copper Queen Mine, Keystone Canyon, New York Mtns 1829 Comment
  UCR23343  Pellaea mucronata John C. Roos 1947-3-8 3310 San Bernardino San Bernardino Mountains, Deep Creek 1159 Comment
  UCR23377  Pinus attenuata John C. Roos 1942-1-24 1007 San Bernardino San Bernardino Mtns., City Creek Comment
  UCR23382  Berberis haematocarpa John C. Roos 1949-6-22 4437 San Bernardino Eastern Mojave Desert, New York Mtns., at and near Lecyr Well 1524 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
  UCR23417  Amaranthus torreyi John C. Roos, A. R. Roos 1950-8-5 4905 San Bernardino Eastern Mojave Desert, Coloseum Mine, Clark Mountain 1707 Comment
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Oct 17 2007
  UCR23423  Amaranthus powellii John C. Roos 1954-11-21 6257 San Bernardino San Bernardino Valley, Loma Linda 336 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
  UCR23446  Mirabilis bigelovii John C. Roos 1949-5-14 4298 San Bernardino Western Mojave Desert, near Hesperia Comment
  UCR23454  Rhamnus ilicifolia John C. Roos 1949-6-22 4454 San Bernardino Eastern Mojave Desert, Keystone Canyon, New York Mtns. 1829 Comment
  UCR23457  Ranunculus uncinatus John C. Roos 1940-7-18 1869 San Bernardino San Bernardino Mtns., Green Valley Comment
  UCR23462  Potentilla gracilis John C. Roos 1965-7-18 s.n. San Bernardino San Bernardino Mtns, Moonridge, Bear Valley 2226 Comment
  UCR23477  Ceanothus tomentosus subsp. olivaceus John C. Roos 1966-3-31 s.n. San Bernardino San Bernardino Valley, in the hills of San Timoteo Canyon, near Redlands Blvd 305 Comment
  UCR23512  Rosa woodsii var. glabrata John C. Roos 1946-9-21 3047 San Bernardino San Bernardino Mtns., Cushenbury Spring 1280 Comment
  UCR23537  Polygala acanthoclada John C. Roos 1949-6-20 4420 San Bernardino Eastern Mojave Desert, Keystone Cannyon, near Barnwell, New York Mtns 1348 Comment
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Nov 6 2014
  UCR23567  Monardella odoratissima John C. Roos 1966-9-3 s.n. San Bernardino San Bernardino Mtns, along a rocky ridge between upper Fish Creek and North Fork Whitewater meadows 2988 Comment
  UCR23572  Pterospora andromedea John C. Roos 1969-8-9 s.n. San Bernardino San Bernardino Mtns, Fish Creek Meadows. Near the Saddle Comment
  UCR23593  Croton setiger John C. Roos 1938-8-19 2747 San Bernardino San Bernardino Valley, Loma Linda 305 Comment
  UCR23610  Halimolobos diffusa var. jaegeri John C. Roos 1949-6-21 4429 San Bernardino Eastern Mojave Desert, New York Mtns, New York Peak 2256 Comment
  UCR23618  Trichostema micranthum John C. Roos 1937-6-28 1944 San Bernardino San Bernardino Mtns., Van Dusen Canyon 2195 Comment
  UCR23635  Croton setiger John C. Roos 1946-9-20 3057 San Bernardino Southern Mojave Desert, between Apple Valley and Lucerne Valley 915 Comment
  UCR23639  Monardella linoides subsp. stricta John C. Roos 1940-7-16 1884 San Bernardino San Bernardino Mtns., Green Valley Comment
  UCR23666  Cerastium fontanum subsp. vulgare 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
  UCR23670  Arenaria lanuginosa subsp. saxosa John C. Roos 1965-7-17 s.n. San Bernardino San Bernardino Mountains, South Fork [of the Santa Ana River] near Barton Flats 2439 Comment
  UCR23686  Heterocodon rariflorum John C. Roos 1937-5-28 821 San Bernardino San Bernardino Mtns./Mojave Desert, West Fork of Mojave River Comment
  UCR23689  Cuscuta indecora John C. Roos 1946-10-5 3109 San Bernardino San Bernardino Mtns./Southern Mojave Desert, The Pipes, a desert slope on the E side of the mountains, north of Yucca Valley. At mouth of canyon 1357 Comment
  UCR23694  Centaurium venustum John C. Roos 1952-6-13 5766 San Bernardino San Bernardino Valley, Reche Canyon 457 Comment
  UCR23736  Chaenactis santolinoides John C. Roos 1946-9-28 3093 San Bernardino San Bernardino Mtns., mouth of Fish Creek 2165 Comment
  UCR23739  Bellis perennis John C. Roos 1965-6-20 s.n. San Bernardino San Bernardino Valley, [San Bernardino near Colton] in the lawn of Lytle Creek Park 320 Comment
  UCR23750  Arceuthobium abietinum John C. Roos 1937-7-20 1917 San Bernardino San Bernardino Mtns, Barton Flats Comment
  UCR23758  Vitis girdiana John C. Roos 1947-6-21 3700 San Bernardino San Bernardino Mtns, Cushenbury Canyon, alkaline springs [probably Whiskey Springs] on north side of the mountains 1677 Comment
  UCR23769  Encelia farinosa John C. Roos 1965-6-6 s.n. San Bernardino Transverse Range; San Bernardino Mtns, Mill Creek near Fallsvale Comment
  UCR23789  Erigeron lonchophyllus John C. Roos 1966-8-6 s.n. San Bernardino San Bernardino Mtns., Upper Fish Creek at Fish Creek Meadows. 2439 Comment
  UCR23794  Filago depressa John C. Roos 1959-3-28 s.n. San Bernardino Mojave Desert, 2-5 mi north of Kramer Junction 808 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
  UCR23828  Gnaphalium stramineum John C. Roos 1965-7-18 s.n. San Bernardino San Bernardino Mtns, east end of Bear Valley Comment
  UCR23864  Glycyrrhiza lepidota John C. Roos 1965-6-16 s.n. San Bernardino Mojave Desert, Victorville 915 Comment
  UCR23872  Bromus richardsonii John C. Roos 1940-7-30 1576 San Bernardino San Bernardino Mtns., Bear Valley near Boulder Bay 2134 Comment
  UCR23884  Elymus stebbinsii John C. Roos 1940-7-16 1865 San Bernardino San Bernardino Mtns., Green Valley Comment
  UCR23903  Ericameria cuneata John C. Roos 1942-10-17 1737 San Bernardino San Bernardino Mtns, Mill Creek Canyon at Vivian Creek 2043 Comment
  UCR23954  Amorpha californica John C. Roos 1947-6-14 3677 San Bernardino San Bernardino Mtns, Crestline 1585 Comment
  UCR23974  Bouteloua curtipendula John C. Roos 1949-6-22 4442 San Bernardino Eastern Mojave Desert, New York Mountains, north side of the mouth of Keystone Canyon 1677 Comment
  UCR24010  Stipa X bloomeri John C. Roos 1946-9-28 s.n. San Bernardino San Bernardino Mtns., Near Fish Creek 2241 Comment
  UCR24018  Lepidospartum squamatum John C. Roos 1965-10-2 s.n. San Bernardino San Bernardino Mtns., Mill Creek 976 Comment
  UCR24036  Glyceria elata John C. Roos 1940-8-3 1584 San Bernardino San Bernardino Mtns., S of Pine Knot [vicinity of Pine Knot Blvd., city of Big Bear Lake] Comment
  UCR24039  Phleum pratense John C. Roos 1940-7-16 1855 San Bernardino San Bernardino Mtns., Green Valley Comment
  UCR24050  Poa compressa John C. Roos, L. Roos 1950-7-5 4848 San Bernardino San Bernardino Valley, Loma Linda, residence at 414 Steward Street 335 Comment
  UCR24058  Lasthenia gracilis John C. Roos 1949-4-30 4277 San Bernardino Mojave Desert, 4 mi NE of Hesperia 884 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
  UCR24078  Phragmites australis John C. Roos 1946-9-21 3076 San Bernardino N slope San Bernardino Mtns/S Mojave Desert, Box 'S' Springs 1082 Comment
  UCR24083  Muhlenbergia filiformis John C. Roos 1946-9-15 3034 San Bernardino San Bernardino Mountains, Dry Lake 2759 Comment
  UCR24085  Oryzopsis micrantha John C. Roos 1949-6-24 3543 San Bernardino Eastern Mojave Desert, N slope of Clark Mountain 2134 Comment
  UCR24094  Atriplex spinifera John C. Roos 1965-9-18 s.n. San Bernardino Mojave Desert, 5 mi north of Kramer Junction Comment
  UCR24107  Sparganium eurycarpum John C. Roos 1943-4-27 2628 San Bernardino San Bernardino Valley, swamp south of San Bernardino 305 Comment
  UCR24113  Chenopodium capitatum John C. Roos 1946-8-29 2779 San Bernardino San Bernardino Mtns., Eagle Point, Bear Valley 2043 Comment
  UCR24151  Zigadenus brevibracteatus John C. Roos 1949-4-30 4276 San Bernardino Mojave Desert, 3 mi north of Hesperia Comment
  UCR24171  Stephanomeria exigua John C. Roos 1965-7-18 s.n. San Bernardino San Bernardino Mtns, east end of Bear Valley Comment
  UCR24192  Epipactis gigantea John C. Roos 1940-5-25 1903 San Bernardino San Bernardino Valley, at mouth of Santa Ana River, above Highland Comment
  UCR24208  Stephanomeria parryi John C. Roos 1937-5-30 2496 San Bernardino Mojave Desert, Hesperia Comment
  UCR24220  Plantago patagonica John C. Roos 1949-6-22 4439 San Bernardino Eastern Mojave Desert, New York Mtns., at and near Lecyr Well 1524 Comment
  UCR24234  Linanthus breviculus John C. Roos 1945-6-27 3724 San Bernardino San Bernardino Mtns., Barton Flats 2287 Comment
  UCR24237  Langloisia matthewsii John C. Roos 1949-5-14 4297 San Bernardino Southern Mojave Desert, Pickaninny Buttes 915 Comment
  UCR24284  Polygonum lapathifolium John C. Roos 1965-9-15 s.n. San Bernardino Mojave Desert, Mohave River at Victorville Comment
  UCR24295  Plantago virginica John C. Roos 1938-6-12 s.n. San Bernardino San Bernardino Valley, Loma Linda 305 Comment
  UCR24302  Stenotaphrum secundatum John C. Roos 1965-6-27 s.n. San Bernardino San Bernardino Valley, Loma Linda Hills 366 Comment
  UCR24310  Eriogonum parishii John C. Roos 1941-9-26 1073 San Bernardino San Bernardino Mtns., Bear Creek near Clarks Ranch Comment
  UCR24331  Collomia linearis John C. Roos 1940-7-16 1858 San Bernardino San Bernardino Mtns., Green Valley Comment
  UCR24350  Sitanion hansenii John C. Roos 1952-6-13 5765 San Bernardino San Bernardino Valley, Reche Canyon 457 Comment
  UCR24365  Arnica chamissonis John C. Roos 1937-7-28 1942 San Bernardino San Bernardino Mountains, Holcomb Valley, north of Delamar Mtn. 2287 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
  UCR24383  Populus balsamifera subsp. trichocarpa John C. Roos 1946-9-28 3095 San Bernardino San Bernardino Mtns., Near Fish Creek 2241 Comment
  UCR24402  Arida carnosa John C. Roos 1956-8-2 6591 San Bernardino San Bernardino Valley, [Loma Linda] north side of Hwy 99 [Redlands Blvd.], 0.2 mile west of Waterman Ave. 307 Comment
  UCR24442  Celtis reticulata John C. Roos 1962-8-4 s.n. San Bernardino San Bernardino Valley, 0.3 mi west of the intersection of Bryant Street and Oak Glen Road. In Wilson Creek Wash 823 Comment
  UCR24461  Mimulus moschatus John C. Roos 1940-7-18 1867 San Bernardino San Bernardino Mtns., Green Valley Comment
  UCR24465  Verbena bracteata John C. Roos 1949-6-20 4413 San Bernardino Eastern Mojave Desert, Mountain Pass, Clark Mountain Comment
  UCR24481  Collinsia heterophylla var. austromontana John C. Roos 1956-5-26 6579 San Bernardino San Bernardino Mtns., Wildwood Cyn, near Yucaipa Comment
  UCR24483  Collinsia childii John C. Roos 1947-6-14 3679 San Bernardino San Bernardino Mtns, near Crestline, behind the Crestline Bowl 1433 Comment
  UCR24551  Chenopodium album John C. Roos 1965-7-4 s.n. San Bernardino San Bernardino Valley, Loma Linda 306 Comment
Read comments
Jan 16 2015
  UCR25114  Stipa X bloomeri John C. Roos, L. Roos 1951-7-28 5067 San Bernardino San Bernardino Mtns, Head of Rathbone Creek Comment
  UCR25125  Brickellia californica John C. Roos 1946-10-5 3115 San Bernardino San Bernardino Mtns., Pipes Creek, [upper] Pipes Canyon 2134 Comment
  UCR25129  Ericameria parryi var. imula John C. Roos, Lucille Roos 1951-7-28 5071 San Bernardino San Bernardino Mountains, Pine Knot, Bear Valley. [vicinity of Pine Knot Blvd., city of Big Bear Lake] 2073 Comment
  UCR25145  Verbena lasiostachys John C. Roos 1965-9-11 s.n. San Bernardino San Bernardino Mtns, Mill Creek Comment
  UCR25146  Amaranthus albus John C. Roos 1965-7-4 s.n. San Bernardino San Bernardino Valley, Loma Linda 306 Comment
  UCR25149  Euphorbia maculata John C. Roos, L. Roos 1951-7-28 5066 San Bernardino San Bernardino Valley, Hwy 99, near Alabama Street west of Redlands 366 Comment
  UCR25242  Eragrostis pectinacea var. pectinacea Alfred R. Roos 1936-9-2 10386 San Bernardino San Bernardino Mtns., Seven Oaks 1707 Comment
  UCR25297  Puccinellia nuttalliana John C. Roos 1946-9-21 3051 San Bernardino San Bernardino Mtns, Baldwin Lake Comment
  UCR25300  Plagiobothrys hispidulus John C. Roos 1947-6-21 3706 San Bernardino San Bernardino Mtns, Running Springs 1838 Comment
  UCR25308  Poa secunda John C. Roos 1967-5-30 s.n. San Bernardino San Bernardino Mtns, east of Broom Flat 2424 Comment
  UCR25384  Eriogonum deflexum John C. Roos 1937-8-25 2026 San Bernardino Eastern Mojave Desert, Windmill Station 1128 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
  UCR25396  Verbena scabra John C. Roos 1937-7-31 964 San Bernardino San Bernardino Valley, San Bernardino 305 Comment
  UCR25408  Langloisia schottii John C. Roos 1949-4-30 4252 San Bernardino Southern Mojave Desert, 5 mi west of Lucerne Valley 915 Comment
  UCR25613  Glyceria elata John C. Roos 1937-7-21 419 San Bernardino San Bernardino Mtns, South Fork [Santa Ana River, near USFS campground] 1829 Comment
  UCR25753  Brodiaea terrestris subsp. kernensis John C. Roos 1937-7-31 2349 San Bernardino Transverse Ranges/San Bernardino Mtns, Twin Peaks Post Office 1768 Comment
  UCR25755  Mentha canadensis John C. Roos 1937-7-31 965 San Bernardino San Bernardino Valley, San Bernardino 305 Comment
  UCR25760  Sidalcea neomexicana John C. Roos 1937-4-23 786 San Bernardino Southern Mojave Desert, Twentynine Palms 762 Comment
  UCR25773  Apocynum cannabinum John C. Roos 1937-7-27 963 San Bernardino San Bernardino Mtns, Baldwin Lake Comment
  UCR25792  Cerastium fontanum subsp. vulgare John C. Roos 1952-5-12 5658 San Bernardino San Bernardino Valley, Loma Linda 320 Comment
  UCR25803  Nama depressa John C. Roos, L. Roos 1952-5-10 5635 San Bernardino Western Mojave Desert, 4 mi. northwest of Adelanto, near Red Raven Mine 823 Comment
  UCR25854  Lotus grandiflorus John C. Roos 1937-7-20 969 San Bernardino San Bernardino Mtns., Camp Angelus 1829 Comment
  UCR25857  Astragalus nutans John C. Roos 1937-4-26 802 San Bernardino Eastern Mojave Desert, Providence Mtns. Comment
  UCR25862  Astragalus acutirostris John C. Roos, L. Roos 1952-5-10 5631 San Bernardino Mojave Desert, Kramer Hills Comment
  UCR25967  Cryptantha muricata John C. Roos 1948-6-13 3879 San Bernardino San Gabriel Mtns., Lytle Creek, along roadside 1220 Comment
  UCR26071  Isocoma acradenia var. eremophila John C. Roos 1948-9-19 4040 San Bernardino Eastern Mojave Desert, Soda Springs, near Baker 284 Comment
  UCR26073  Tetradymia argyraea John C. Roos, R. Weatherby 1949-9-2 3574 San Bernardino NE Mojave Desert, north side of the Kingston Mtns. 1921 Comment
  UCR26088  Psathyrotes annua John C. Roos 1949-6-26 4498 San Bernardino Eastern Mojave Desert, 2 mi south of Kingston 793 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
  UCR26178  Castilleja plagiotoma John C. Roos 1937-5-1 2047 San Bernardino San Gabriel Mtns., Swarthout Valley Comment
  UCR26243  Trichostema micranthum John C. Roos 1937-8-27 2345 San Bernardino Mojave Desert, [Along the Mojave River], Victorville. Comment
  UCR26247A  Allium nevadense var. cristatum John C. Roos 1949-6-27 4511 San Bernardino Eastern Mojave Desert, steep north side of the Kingston Mtns. 2104 Comment
  UCR26249  Gentiana aquatica John C. Roos 1937-7-21 1997 San Bernardino San Bernardino Mtns, South Fork of Santa Ana River 1921 Comment
  UCR26298  Plantago patagonica John C. Roos 1949-6-23 4468 San Bernardino Eastern Mojave Desert, Rock Spring, Mid Hills 1463 Comment
  UCR26319  Elymus salinus John C. Roos 1949-6-20 3549 San Bernardino Eastern Mojave Desert, New York Mountains, Keystone Canyon 1738 Comment
  UCR26324  Calochortus kennedyi var. munzii John C. Roos 1949-5-28 4338 San Bernardino Eastern Mojave Desert, Clark Mountain, slopes near Green's Mine 1616 Comment
  UCR26338  Poa howellii John C. Roos 1939-6-24 918 San Bernardino San Bernardino Mtns., Sawpit Canyon, south of Cedar Springs 1159 Comment
  UCR27433  Mentzelia veatchiana John C. Roos 1949-8-30 4257 San Bernardino Mojave Desert, west of Hesperia 976 Comment
  UCR27592  Festuca rubra John C. Roos 1965-6-16 s.n. San Bernardino Western Mojave Desert, Adelanto: edge of lawn on the rest area at tank Comment
  UCR30451  Yucca brevifolia John C. Roos 1966-4-3 s.n. San Bernardino Mojave Desert, 6 mi south of Victorville Comment
  UCR30518  Senecio spartioides John C. Roos 1937-7-28 2430 San Bernardino San Bernardino Mtns, Van Deusen Canyon [Caribou Creek], near Bear Valley 2195 Comment
  UCR30531  Hilaria rigida John C. Roos 1949-5-14 4301 San Bernardino Southern Mojave Desert/San Bernardino Mtns., Rock Corral, north base of the mountains 1067 Comment
  UCR30542  Stipa lettermanii John C. Roos 1937-7-26 337 San Bernardino San Bernardino Mtns., Pine Knot, Big Bear Valley [vicinity of Pine Knot Blvd., city of Big Bear Lake] 2043 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
  UCR30583  Mentzelia lindleyi John C. Roos 1950-5-5 4777 San Bernardino San Bernardino Valley, 158 South Anderson Street, Loma Linda 335 Comment
  UCR30585  Navarretia peninsularis John C. Roos 1937-7-26 340 San Bernardino San Bernardino Mtns., Pine Knot, Big Bear Valley [vicinity of Pine Knot Blvd., city of Big Bear Lake] 2043 Comment
  UCR30810  Arabis glabra John C. Roos 1937-4-17 2208 San Bernardino San Bernardino Valley, Highland, east of San Bernardino 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
  UCR32898  Eragrostis pectinacea var. pectinacea Alfred R. Roos 1937-11-25 s.n. San Bernardino San Bernardino Valley/San Bernardino Mtns. Foothills, Highland, east of San Bernardino 457 Comment
  UCSB37777  Eriophyllum confertiflorum Roos, John 1965-6-26 San Bernardino Upper Santa Ana Basin, near Fish Creek, San Bernardino Mtns. Comment
  UCSB37788  Cercocarpus ledifolius Roos, John 1965-6-6 San Bernardino Mill Creek near Fallsvale, San Bernardino Mtns. Comment
  UCSB37791  Horkelia wilderae Roos, John 1965-6-26 San Bernardino Upper Santa Ana Basin, near Fish Creek, San Bernardino Mtns. Comment
  UCSB37805  Artemisia douglasiana Roos, John 1965-10-2 San Bernardino Mentone Comment
  UCSB37813  Centaurea melitensis Roos, John 1965-6-6 San Bernardino Mill Creek, near Fallsvale, San Bernardino Mtns. Comment
  UCSB37827  Dieteria canescens Roos, John 1966-8-13 San Bernardino Fish Creek, San Bernardino Mtns. 2316 Comment
  UCSB37833  Digitaria sanguinalis Roos, John 1965-7-5 San Bernardino Loma Linda 304 Comment
  UCSB38055  Dodecahema leptoceras Roos, John 1950-6-3 San Bernardino Cajon Canyon, 1 mile below "Blue Cut" 762 Comment
  UCSB38056  Ribes roezlii Roos, John 1965-6-6 San Bernardino Mill Creek near Fallsvale; San Bernardino Mtns Comment
  UCSB41127  Ipomopsis polycladon Roos, John; Roos, Lucille 1952-5-10 San Bernardino 4 miles northwest of Adelanto near Red Raven Mine 838 Comment
  UCSB41538  Amaranthus retroflexus Roos, Alfred 1937-11-24 San Bernardino Bryn Mawr Comment
  UCSB42117  Clarkia purpurea Roos, John 1965-6-12 San Bernardino Igo's near Mountain Home Village; in Mill Creek Canyon; San Bernardino Mtns Comment
  UCSB42123  Scutellaria siphocampyloides Roos, John 1965-7-17 San Bernardino Barton Flats; San Bernardino Mtns Comment
  UCSB42132  Castilleja lasiorhyncha Roos, John 1956-7-21 San Bernardino Snow Valley, north of Keller Peak, San Bernardino Mtns. Comment
  UCSB42137  Cleomella parviflora Roos, John 1949-4-30 San Bernardino Rabbit Springs, Lucerne Valley, southern Mojave Valley 883 Comment
  UCSB42140  Leptosiphon breviculus Roos, John 1965-6-26 San Bernardino Upper Santa Ana Basin near Fish Creek, San Bernardino Mtns. Comment
  UCSB42141  Microsteris gracilis Roos, John 1966-4-9 San Bernardino North Shore; 2 miles east of Fawnskin-Bear Valley; San Bernardino Mtns Comment
  UCSB42149  Acanthoscyphus parishii Roos, John 1965-10-2 San Bernardino Camp Angelus, San Bernardino Mtns. Comment
  UCSB42152  Moluccella laevis Roos, John 1969-5-18 San Bernardino Loma Linda Comment
  UCSB42170  Silene verecunda Roos, John 1965-6-12 San Bernardino Mill Creek, Igo's near Mountain Home Village Comment
  UCSB42215  Lupinus breweri Roos, J. 1965-7-18 San Bernardino Bear Valley; San Bernardino Mountains Comment
  UCSB42216  Lupinus excubitus Roos, J. 1965-7-18 San Bernardino Along Bear Valley; San Bernardino Mtns. Comment
  UCSB42259  Rumex californicus Roos, John 1965-7-17 San Bernardino Dry Lake, San Bernardino Mtns. Comment
  UCSB42265  Atriplex truncata Roos, J. 1950-6-24 San Bernardino Rabbit Springs, Mojave Desert 883 Comment
  UCSB42269  Polygonum douglasii Roos, John 1965-7-18 San Bernardino Moonridge, Bear Valley, San Bernardino Mtns. Comment
  UCSB42272  Myriophyllum sibiricum Roos, John 1966-9-9 San Bernardino in Big Bear Lake; San Bernardino Mtns Comment
  UCSB45522  Elatine chilensis Roos, John 1965-7-17 San Bernardino Dry Lake; San Bernardino Mtns. 2743 Comment
  UCSB45544  Andropogon glomeratus Roos, John; Roos, Lucille 1950-11-4 San Bernardino Arrowhead Hot Springs; S side of San Bernardino Mtns 609 Comment
  UCSB45563  Sporobolus cryptandrus 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
  UCSB45598  Descurainia incana Roos, John 1947-2-22 San Bernardino Deep Creek, along the flume, San Bernardino Mountains Comment
  UCSB45603  Chorizanthe parryi var. parryi Roos, John; Roos, Lucille 1952-5-11 San Bernardino Scott's Canyon 2.5 miles southeast of Loma Linda. 426 Comment
  UCSB45610  Castilleja plagiotoma Roos, John 1949-4-30 San Bernardino 5-6 miles S.W. of Hesperia 1127 Comment
Read comments
Jul 17 2019
  UCSB45611  Hymenoxys acaulis Roos, John 1948-9-18 San Bernardino Clark Mtn. 1981 Comment
  UCSB45945  Ambrosia psilostachya Roos, Alfred 1937-11-15 San Bernardino Loma Linda Comment
  UCSB45952  Hordeum brachyantherum subsp. brachyantherum Roos, John 1965-7-18 San Bernardino Big Bear Lake, San Bernardino Mtns. Comment
  UCSB46748  Alnus rhombifolia Roos, John 1965-9-11 San Bernardino Mill Creek, San Bernardino Mtns. Comment
  UCSB49868  Stephanomeria cichoriacea Roos, John 1965-10-2 San Bernardino East Fork Mtn. Home Canyon, San Bernardino Mtns. Comment
  UCSB51280  Poa howellii Roos, John; Roos, Lucille 1957-6-1 San Bernardino Yucaipa Ridge, 0.5 miles S.W. of Mill Creek Public Camp, Mill Creek, San Bernardino Mtns. Comment
  UCSB51281  Poa compressa Roos, John; Roos, Lucille 1950-7-5 San Bernardino 414 Steward St. Loma Linda 323 Comment
  UCSB51285  Panicum capillare Roos, John 1965-9-15 San Bernardino Victorville Comment
  UCSB51362  Schismus barbatus Roos, John 1950-4-17 San Bernardino Loma Linda 335 Comment
  UCSB51370  Muhlenbergia andina Roos, John 1962-9-29 San Bernardino Mill Creek; San Bernardino Mtns 2042 Comment
  UCSB51401  Bromus carinatus var. marginatus Roos, John 1965-7-18 San Bernardino Moonridge, Bear Valley, San Bernardino Mtns Comment
  UCSB51413  Bromus carinatus var. marginatus Roos, John 1965-7-17 San Bernardino Barton Flats, San Bernardino Mtns. Comment
  CAS-BOT-BC171523  Oenothera californica John Roos; Lucille Roos 1952-5-9 5625 San Bernardino Near Santa Ana River at Colton. 274 Comment
  CAS-BOT-BC294393  Ericameria parryi var. imula John Roos; Lucille Roos 1951-7-28 5071 San Bernardino Pine Knot, Bear Valley, San Bernardino Mts. 2072 Comment
  CAS-BOT-BC401451  Hypericum scouleri J. C. Roos 1966-8-13 s.n. San Bernardino San Bernardino Mtns. Along the stream at Fish Creek 2316 Comment
  CLARK-A1528-1117  Capsella bursa-pastoris John C. Roos 1943-4-4 2619 San Bernardino San Bernardino 320 Comment
  CLARK-A1528-1309  Eustoma exaltatum John C. Roos 1946-8-26 2977 San Bernardino San Bernardino Comment
  CLARK-A1528-1755  Centaurea repens John C. Roos 1948-10-16 San Bernardino Wildwood Canyon Comment
  CLARK-A1528-1915  Helianthus petiolaris John C. Roos, Lucille Roos 1954-4-30 6071 San Bernardino 304 Comment
  CLARK-A1528-2067  Psathyrotes ramosissima John C. Roos 1937-8-25 2023 San Bernardino Comment
  CLARK-A1528-2266  Impatiens balfourii John C. Roos 1957-6-22 6615 San Bernardino Zanja Creek 548 Comment
  CLARK-A1528-2696  Eremocarpus setiger John C. Roos 1965-7-27 San Bernardino Comment
  CLARK-A1528-2831  Lupinus excubitus subsp. austromontanus John C. Roos 1937-5-15 1187 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-2837  Lupinus formosus John C. Roos 1937-5-15 1186 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-3001  Phacelia curvipes John C. Roos 1937-7-18 673 San Bernardino San Gabriel Mountains Comment
  CLARK-A1528-3151  Monardella odoratissima John C. Roos 1966-9-3 San Bernardino San Bernardino Mountains 2986 Comment
  CLARK-A1528-3864  Delphinium parryi John C. Roos 1943-4-11 2607 San Bernardino San Bernardino Comment
  CLARK-A1528-4879  Cuscuta indecora John C. Roos 1937-8-27 645 San Bernardino San Bernardino Comment
  CLARK-A1528-4937  Elatine californica John C. Roos 1937-7-27 1673 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-5038  Sporobolus cryptandrus John C. Roos 1967-7-29 San Bernardino Comment
  CLARK-A1528-5070  Lotus crassifolius John C. Roos 1940-5-18 835 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-5080  Phacelia parryi John C. Roos 1941-4-25 161 San Bernardino San Bernardino Comment
  CLARK-A1528-5351  Mentha arvensis John C. Roos 1952-8-6 5882 San Bernardino San Bernardino 304 Comment
  CLARK-A1528-5414  Chenopodium pumilio John C. Roos 1952-11-1 5906 San Bernardino San Bernardino Valley 335 Comment
  LA102242  Mimulus guttatus John C. Roos; 1951-9-24 5241 San Bernardino along Gage Canal, Loma Linda 304 Comment
Read comments
Aug 20 2014
  OBI33222  Eriogonum davidsonii J. C. Roos 1947-8-2 3732 San Bernardino Burns Wash, E end of the San Bernardino Mts Comment
  OBI35848  Orobanche fasciculata J. C. Roos 1967-5-20 s.n. San Bernardino San Bernardino Mts Comment
  POM262781  Tribulus terrestris J. C. Roos 1940-9-1 238 San Bernardino San Bernardino Valley. Loma Linda. Comment
  POM262917  Eriogonum nidularium J. C. Roos 1937-8-25 616 San Bernardino NE of Baker. Comment
  POM262941  Mentzelia albicaulis J. C. Roos 1937-4-25 544 San Bernardino West of Essex, Mojave Desert, San Bernardino County Comment
  POM263006  Verbesina encelioides subsp. exauriculata J. C. Roos 1940-9-15 228 San Bernardino Orchard near Loma Linda Comment
  POM264312  Oenanthe sarmentosa J. C. Roos 1937-6-6 660 San Bernardino San Bernardino. Comment
  POM265767  Potamogeton crispus J. C. Roos 1937-5-9 2095 San Bernardino Near Loma Linda, San Bernardino Valley Comment
  POM266368  Artemisia rothrockii J. C. Roos 1940-8-3 1561 San Bernardino E end of Bear Valley Comment
  RSA0028755  Epilobium torreyi J. C. Roos 1965-9-15 s.n. San Bernardino Victorville. Comment
  RSA0049525  Cercocarpus intricatus J. C. Roos 1950-8-4 s.n. San Bernardino W. side of Clark Mtn., E. Mojave Desert. Comment
  RSA0063277  Heuchera parishii J. C. Roos 1941-8-27 40 San Bernardino Greyback Ridge. 3354 Comment
  RSA0079423  Cryptantha muricata var. jonesii J. C. Roos 1948-6-13 3879 San Bernardino Lytle Creek, San Gabriel Mtns. 1220 Comment
  RSA0103518  Tiquilia canescens var. canescens J. C. Roos 1949-5-29 3534 San Bernardino North foot of Clark Mts., eastern Mojave Desert. 1220 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
  RSA0120388  Eriastrum eremicum subsp. eremicum J. C. Roos s.n. San Bernardino 4 miles north of Adelanto, Mojave Desert. Comment
  RSA40557  Lewisia pygmaea A. R. Roos 1946-9-4 3042 San Bernardino San Gorgonio Peak. 3445 Comment
  RSA44237  Helianthus annuus subsp. jaegeri J. C. Roos 1949-6-28 3562 San Bernardino Tecopa, Amargosa River Valley. 1400 Comment
  RSA443541  Mentha suaveolens J. C. Roos 1965-10-3 s.n. San Bernardino Loma Linda Comment
  RSA44892  Helianthus petiolaris subsp. petiolaris J. C. Roos 1947-5-11 3609 San Bernardino 2 miles east of Guasti. Comment
  RSA44918  Helianthus ciliaris J. C. Roos 1947-6-20 3684 San Bernardino Old grain feild, Richardson St. near Zanja, Loma Linda Comment
  RSA449944  Modiola caroliniana J. C. Roos 1956-5-20 6582 San Bernardino 114 Taylor St., Loma Linda. Comment
Read comments
May 21 2011
  RSA450076  Nicotiana glauca J. C. Roos 1965-6-27 s.n. San Bernardino Loma Linda Hills. 305 Comment
  RSA450188  Asparagus officinalis J. C. Roos 1965-9-19 s.n. San Bernardino Loma Linda. Comment
  RSA658344  Salpichroa origanifolia J. C. Roos 1965-4-29 s.n. San Bernardino Bloomington. Comment
  RSA659666  Veronica persica J. C. Roos 1947-3-21 3376 San Bernardino Loma Linda. Comment
  RSA659793  Acacia dealbata J. C. Roos 1938-3-15 s.n. San Bernardino Loma Linda. Comment
  RSA664099  Chloris virgata J. C. Roos 1965-7-6 s.n. San Bernardino Roadside of Barstow. Comment
  RSA86880  Solanum triflorum J. C. Roos 1950-9-1 4957 San Bernardino Coliseum Mine, Clark Mts. 1616 Comment
  RSA89965  Chrysothamnus nauseosus subsp. hololeucus J. C. Roos 1950-10-17 5010 San Bernardino Little Pigeon Pass, Barton Road ca. 2 mi. W of Loma Linda. 320 Comment
  RSA92558  Oenothera californica subsp. californica J. C. Roos, L. Roos 1952-5-9 5625 San Bernardino Near Santa Ana River, at Colton. 274 Comment
  RSA92581  Descurainia pinnata subsp. glabra J. C. Roos 1952-5-10 5641 San Bernardino 4 miles northwest of Adelanto, near Red Raven Mine. 823 Comment
  RSA92583  Chorizanthe parryi var. parryi J. C. Roos, Lucille Roos 1952-5-11 5650 San Bernardino Scott's Canyon, 2.5 miles southeast of Loma Linda. 427 Comment
  RSA92597  Linanthus parryae J. C. Roos, L. Roos 1952-5-10 5645 San Bernardino Adelanto 915 Comment
  RSA92740  Allium fimbriatum var. fimbriatum J. C. Roos, L. Roos 1952-5-17 5683 San Bernardino Baldy Mesa about 4 or 5 miles southwest of Phelan 1128 Comment
  SEINET10460645  Heterocodon rariflorum Roos 1937-5-28 Roos 821 San Bernardino LAS FLORES RANCH, W FORK OF MOHAVE R. 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
  UCD133287  Hulsea vestita J. C. Roos 1943-7-4 2718 San Bernardino Sugarloaf Mountain, San Bernardino Mountains. 2987 Comment
  UCD98830  Dysphania pumilio A. R. Roos 1937-7-14 s.n. San Bernardino Santa Ana River, near Waterman Avenue. Comment
  UCSB37358  Salpichroa origanifolia Roos, John 1965-6-29 San Bernardino Bloomington Comment
  UCSB40898  Styrax redivivus Roos, John 1940-5-18 San Bernardino Waterman Canyon, San Bernardino Mts., (San Bernardino North 7.5 Q.) Comment
  CAS-BOT-BC306311  Hedypnois cretica J. C. Roos 1956-5-5 6577 San Diego Marlborough and Adams, San Diego Comment
  CAS-BOT-BC99839  Baccharis sarothroides John Roos; Lucille Roos 1950-8-19 4937 San Diego Hodges Dam S.W. of Escondido 121 Comment
  CLARK-A1528-1228  Castilleja affinis subsp. affinis John C. Roos 1937-6-10 1480 San Diego Jacumba 853 Comment
  CLARK-A1528-1338  Cneoridium dumosum John C. Roos, Lucille Roos 1954-4-10 6061 San Diego San Pasqual 152 Comment
  CLARK-A1528-1507  Allium haematochiton John C. Roos 1935-2-24 San Diego National City Comment
  CLARK-A1528-1534  Ambrosia chenopodiifolia John C. Roos 1937-6-13 1441 San Diego San Ysidro Comment
  CLARK-A1528-1555  Anthemis cotula John C. Roos 1941-6-14 San Diego Lemon Grove Comment
  CLARK-A1528-1780  Conyza coulteri John C. Roos 1965-10-10 San Diego Otay Lake Comment
  CLARK-A1528-2041  Brickellia californica John C. Roos 1949-10-1 4672 San Diego Vista Comment
  CLARK-A1528-2058  Pluchea purpurascens John C. Roos 1965-10-10 San Diego Otay Lake Comment
  CLARK-A1528-2896  Thermopsis macrophylla John C. Roos 1937-6-15 2383 San Diego Julian Comment
  CLARK-A1528-2922  Quercus engelmannii John C. Roos 1965-10-10 San Diego Comment
Read comments
Jul 22 2016
  CLARK-A1528-3055  Xylococcus bicolor John C. Roos, Lucille Roos 1954-2-13 6044 San Diego Merriam Mountains Comment
  CLARK-A1528-3368  Clarkia purpurea subsp. quadrivulnera John C. Roos 1937-6-11 1757 San Diego Campo Comment
  CLARK-A1528-3437  Plantago erecta John C. Roos 1937-6-18 936 San Diego Warner Springs Comment
  CLARK-A1528-3505  Gilia caruifolia John C. Roos 1937-6-15 1459 San Diego Cuyamaca Lake Comment
  CLARK-A1528-3909  Rhamnus pilosa John C. Roos 1937-6-14 531 San Diego Alpine Comment
  CLARK-A1528-3966  Cneoridium dumosum John C. Roos 1937-6-16 2387 San Diego Torrey Pines Ridge Comment
  CLARK-A1528-4407  Viola douglasii John C. Roos 1936-4-17 San Diego Julian Comment
  CLARK-A1528-4500  Bothriochloa barbinodis John C. Roos 1965-10-10 San Diego Otay Lake Comment
  CLARK-A1528-5019  Orthocarpus densiflorus var. gracilis John C. Roos 1937-6-11 1445 San Diego Campo Comment
  CLARK-A1528-5021  Abronia umbellata John C. Roos 1937-6-13 1448 San Diego Imperial Beach Comment
  CLARK-A1528-5023  Monanthochloe littoralis John C. Roos 1937-6-13 1450 San Diego Imperial Beach Comment
  CLARK-A1528-5105  Nama stenocarpa John C. Roos 1937-6-17 512 San Diego San Luis Rey Comment
  CLARK-A1528-5648  Silene gallica John C. Roos 1937-3-27 1320 San Diego El Capitan Comment
  CLARK-A1528-5664  Dudleya pulverulenta John C. Roos 1937-6-14 1495 San Diego Lemon Grove Comment
  CLARK-A1528-7819  Lolium multiflorum John C. Roos 1937-6-13 3 San Diego Chula Vista Comment
  CLARK-A1528-7872  Hainardia cylindrica John C. Roos 1937-6-14 1461 San Diego Lemon Grove Comment
  POM262991B  Astragalus palmeri J. C. Roos 1937-6-10 492 San Diego Summit above Mountain Spring(s). Comment
  POM263554  Rhamnus crocea subsp. pilosa J. C. Roos 1937-6-14 531 San Diego Alpine. Comment
  POM265687  Lupinus concinnus subsp. concinnus J. C. Roos 1937-6-10 1779 San Diego Jacumba. Comment
  POM265694  Acalypha californica J. C. Roos 1967-8-30 2565 San Diego Jamul. Comment
  POM265807  Ceanothus leucodermis J. C. Roos 1937-4-17 1783 San Diego Ramona. Comment
  POM266301  Ambrosia chenopodiifolia J. C. Roos 1937-6-13 1441 San Diego hillside near San Ysidro 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
  RSA85134  Ceanothus tomentosus var. olivaceus J. C. Roos 1954-2-13 6045 San Diego Merriam Mts. about 5 miles north of Escondido. 290 Comment
  RSA86902  Matthiola incana J. C. Roos 1950-8-19 4940 San Diego Torrey Pines Beach 6 Comment
  UCD129493  Bahiopsis laciniata J. C. Roos 1937-4-17 s.n. San Diego Dulzura. Comment
  UCD136905  Trichoptilium incisum J. C. Roos 1937-4-18 s.n. San Diego In-ko-pah. Comment
  UCR23244  Apocynum cannabinum John C. Roos 1949-7-30 4596 San Diego Palomar Mountains, Palomar Mtns. 1529 Comment
  UCR23362  Pityrogramma triangularis var. viscosa John C. Roos 1955-3-26 6277 San Diego Peninsular Range, Moosa Canyon near dam, along Hwy 395, 10 miles north of Escondido 152 Comment
  UCR23650  Chimaphila menziesii John C. Roos 1937-6-18 1234 San Diego Peninsular Range, Palomar Mountain Comment
  UCR23669  Garrya veatchii John C. Roos 1968-1-20 s.n. San Diego Peninsular Range, Near Oak Grove, at the NE base of Palomar Mtn. Comment
  UCR23820  Hedypnois cretica John C. Roos 1956-4-5 6557 San Diego South Coast, San Diego, Marlborough & Adams 107 Comment
Read comments
Apr 23 2019
  UCR23834  Conyza coulteri John C. Roos 1965-10-10 s.n. San Diego Bank of Otay Lake 150 Comment
  UCR23840  Aristida purpurea John C. Roos 1941-6-17 s.n. San Diego South Coast, Del Mar 91 Comment
  UCR23949  Lupinus concinnus subsp. orcuttii John C. Roos 1955-3-28 6281 San Diego Hills 10 mi. north of Escondido, Moosa Canyon near the dam, along Hwy 395 152 Comment
  UCR25987  Triodanis biflora John C. Roos 1937-6-8 1498 San Diego Peninsular Range, Warner Hot Springs Comment
  UCR26201  Lycium californicum John C. Roos, L. Roos 1982-12-18 6267 San Diego South Coast, Encinitas 5 Comment
  UCR26257  Viola lobata John C. Roos 1937-6-15 524 San Diego Peninsular Range, Julian Comment
  UCR30561  Lessingia filaginifolia var. filaginifolia John C. Roos 1949-7-30 4586 San Diego Palomar Mountains, Palomar Mtns. 1529 Comment
  UCR30594  Caulanthus heterophyllus var. heterophyllus John C. Roos, L. Roos 1954-4-10 6065 San Diego Peninsular Range, San Pasqual 152 Comment
  UCR31679  Lotus nuttallianus John C. Roos, L. Roos 1954-12-18 6268 San Diego Southern Coast, Encinitas 5 Comment
  UCSB37914  Bahiopsis laciniata Roos, John 1956-6-5 San Diego Mission Valley at the mouth of Murphy Canyon 2006 Comment
  UCSB42192  Holocarpha virgata Roos, John 1965-10-10 San Diego Otay Lake Comment
  UCSB42208  Hedypnois cretica Roos, John 1956-5-5 San Diego Marlborough and Adams Comment
Read comments
May 6 2015
  CLARK-A1528-3888  Ceanothus greggii subsp. perplexans John C. Roos 1937-5-18 1663 San Diego Comment
  CLARK-A1528-3903  Ceanothus verrucosus John C. Roos 1937-4-18 1662 San Diego Comment
Read comments
Jul 22 2016
  POM263044  Holcus lanatus J. C. Roos 1937-6-15 470 San Diego Julian Comment
  POM263406  Poa pratensis J. C. Roos 1937-6-15 448 San Diego Near Cuyamaca Lake, Cuyamaca Mountains. Comment
  POM263463  Chloris gayana J. C. Roos 1937-8-30 426 San Diego La Mesa. Comment
  RSA0070996  Orobanche californica subsp. feudgei John C. Roos 1937-6-10 1782 San Diego Boulevard. Comment
  CLARK-A1528-1627  Baccharis pilularis John C. Roos 1950-7-19 4859 San Francisco San Francisco 60 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
  CAS-BOT-BC254443  Piptatherum miliaceum John Roos; Lucille Roos 1953-11-29 6043 San Luis Obispo Near chicken pens, California Polytechnic College campus, San Luis Obispo 91 Comment
  POM301488  Galium porrigens J. C. Roos 1937-7-4 s.n. San Luis Obispo Lower Cuyama Valley. Comment
  CLARK-A1528-2016  Monolopia major John C. Roos 1937-3-26 2476 Santa Barbara Cuyama Valley Comment
Read comments
Feb 9 2019
  CLARK-A1528-2814  Lupinus arboreus John C. Roos 1937-7-1 1706 Santa Barbara Santa Ynez Mountains Comment
  CLARK-A1528-4149  Ribes speciosum Alfred R. Roos 1937-3-27 Santa Barbara Comment
  CLARK-A1528-4373  Solanum umbelliferum John C. Roos 1937-3-26 1342 Santa Barbara Comment
  CLARK-A1528-4767  Muhlenbergia rigens John C. Roos 1937-7-2 2397 Santa Barbara Los Olivos Comment
  CLARK-A1528-7762  Gastridium John C. Roos 1937-7-4 1771 Santa Barbara Cuyama Valley Comment
  UCR24322  Eriogonum nudum var. indictum Alfred R. Roos 1937-7-4 1918 Santa Barbara Sierra Madre Mountains, Upper Cuyama Valley 427 Comment
  UCR30558  Holodiscus discolor John C. Roos 1937-7-1 2254 Santa Barbara Nojoqui Falls near Solvang Comment
  CLARK-A1528-2262  Plagiobothrys nothofulvus John C. Roos 1937-3-26 1836 Santa Barbara Cuyama Valley Comment
  CLARK-A1528-2304  Caulanthus coulteri John C. Roos 1937-3-26 2198 Santa Barbara Cuyama Valley Comment
  CLARK-A1528-2478  Spergularia macrotheca John C. Roos 1937-3-27 643 Santa Barbara Gaviota Beach Comment
  CLARK-A1528-3970  Adenostoma fasciculatum John C. Roos 1937-3-26 Santa Barbara Cuyama River Comment
  RSA265794  Frankenia grandifolia var. campestris J. C. Roos 1937-7-4 1920 Santa Barbara Upper Cuyama Valley Comment
  UC1506370  Ericameria arborescens J. C. Roos 1948-8-27 3966 Santa Cruz on slope e Big Basin; Santa Cruz Mountains Comment
  UCR25099  Pickeringia montana John C. Roos 1948-8-27 3967 Santa Cruz Santa Cruz Mtns, east of Big Basin Comment
  UCR25993  Calycanthus occidentalis John C. Roos 1948-8-30 3925 Shasta Castle Crag Comment
  UCR31644  Aster oregonensis John C. Roos 1948-8-31 3929 Shasta Castle Crags 1494 Comment
  CLARK-A1528-7840  Chenopodium vulvaria John C. Roos 1948-9-1 3985 Siskiyou Fort Jones Comment
  LA102190  Danthonia californica John C. Roos; 1965-8-1 sn Siskiyou Marble Mountains, Middle Sky High Lake Comment
  UCR19259  Brickellia greenei John C. Roos 1948-9-2 3975 Siskiyou 5 mi SW of Yreka Comment
  UCR26232  Claytonia sibirica John C. Roos 1948-9-1 3982 Siskiyou high ridge SW of Etna Comment
  UCR30522  Abies magnifica var. shastensis John C. Roos 1948-9-1 s.n. Siskiyou high ridge SW of Etna Comment
  UCR30818  Pterospora andromedea Lucille Roos 1965-8-10 s.n. Siskiyou Klamath National Forest, Bear Lake, Marble Mountains 1473 Comment
  UCR34454  Helianthus bolanderi John C. Roos 1948-9-1 3981 Siskiyou Near Fort Jones 854 Comment
  CLARK-A1528-1053  Acer circinatum John C. Roos 1939-7-5 1520 Siskiyou 990 Comment
  RSA45491  Chenopodium vulvaria J. C. Roos 1948-9-1 3985 Siskiyou Fort Jones. Comment
  CAS-BOT-BC239853  Rytidosperma penicillatum J. C. Roos 1957-7-2 6651 Sonoma Miller Ridge Comment
  CLARK-A1528-3216  Lythrum hyssopifolia John C. Roos 1938-6-19 Sonoma Novato Comment
  POM262891  Salvia sonomensis J. C. Roos 1939-4-1 311 Sonoma Hood Peak Range west of Calistoga. Comment
  RSA648061  Anthoxanthum odoratum Roos 1924-6-20 1524 Sonoma Between Santa Rosa and Sonoma. Comment
  SEINET225364 Image available Dichanthelium acuminatum subsp. fasciculatum John Roos, Lucill Roose 1956-9-1 6598 Sonoma The Geysers. Comment
  UCR18581  Carthamus tinctorius John C. Roos, L. Roos 1959-9-2 6599 Sonoma North Coast Ranges, Healdsburg, Healdsburg dump Comment
  UCR18634  Triteleia laxa John C. Roos 1950-7-22 4866 Sonoma Jenner 30 Comment
  UCR19003  Chenopodium botrys John C. Roos 1948-8-29 3960 Sonoma North Coast Ranges, Healdsburg. Sandbar along Russian River Comment
  UCR23636  Rhododendron occidentale John C. Roos 1957-7-2 6645 Sonoma Miller Ridge Comment
  UCR23658  Campanula prenanthoides John C. Roos 1957-7-2 s.n. Sonoma Miller Ridge Comment
  CLARK-A1528-1521  Triteleia laxa John C. Roos 1950-7-22 4866 Sonoma Jenner Comment
Read comments
Sep 13 2015
  LA102440  Lasthenia californica subsp. macrantha John C. Roos; 1950-7-22 4867 Sonoma Jenner 30 Comment
  UCSB45518  Zeltnera muehlenbergii Roos, John 1957-7-3 Sonoma Healdsberg Comment
  CLARK-A1528-5748  Taxus brevifolia John C. Roos 1939-7-7 548 Trinity Trinity Mountains Comment
  CLARK-A1528-7760  Acer circinatum John C. Roos 1939-7-7 549 Trinity Trinity Mountains Comment
  POM263129  Acer circinatum J. C. Roos 1937-7-7 549 Trinity Trinity Mountains, east of Weaverville Comment
  CLARK-A1528-3200  Veratrum californicum John C. Roos 1968-9-21 Tulare Fish Creek Meadows 2590 Comment
  CLARK-A1528-3940  Cephalanthus occidentalis var. californicus John C. Roos 1965-8-21 Tulare Sequoia National Park 609 Comment
  UCR25093  Eragrostis pectinacea var. pectinacea Alfred R. Roos 1929-6-3 3172 Tulare Tulare City Comment
  CLARK-A1528-1993  Lessingia leptoclada John C. Roos 1965-8-21 Tulare Kaweah River Canyon 609 Comment
  CLARK-A1528-2912  Quercus wislizeni John C. Roos 1965-8-21 Tulare Kaweah River Comment
  RSA450742  Lessingia leptoclada J. C. Roos 1965-8-21 s.n. Tulare Kaweah River Canyon, west of Sequoia National Park 610 Comment
  UCR30533  Calamagrostis muiriana John C. Roos 1948-9-7 4011 Tuolumne Sierra Nevada Mtns., Yosemite National Park, Tuolumne Meadows 2622 Comment
Read comments
Aug 26 2011
  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
  GH361556  Achnatherum webberi J. C. Roos & L. Roos 1952-7-25 5819 Unknown between Westgaard [Westgard] Pass and Reed Flat, White Mts. Comment
  GH364476  Eriogonum nummulare J. C. Roos & E. C. Jaeger 1955-7-22 6503 Unknown Soldier Flat, east base Waucoba Mountain 2194 Comment
  GH364480  Eriogonum shockleyi J. C. Roos 1955-7-21 6484 Unknown Whitetop Peak, summit Last Chance Mountains 2560 Comment
  GH364971  Malosma laurina J. C. Roos & L. Roos 1954-7-10 6191 Unknown north side of Pigeon Pass, Box Springs Mts. 487 Comment
  GH37210  Nitrophila mohavensis J. C. Roos & A. R. Roos 1954-6-13 6140 Unknown Open flats of Amargosa Desert 3 miles northeast of Death Valley Junction along Ash Meadows road, 2050 feet 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
  GH387373  Ericameria discoidea J. C. Roos & A. R. Roos 1955-8-26 6552 Unknown north shoulder Waucoba Mt., Inyo Mts. 3261 Comment
  GH417445  Ericameria parryi var. aspera J. C. Roos & L. Roos 1951-8-8 5114 Unknown southeast rim Reed Flat, White Mts. 3078 Comment
  GH417917  Hazardia brickellioides J. C. Roos 1955-7-23 6513 Unknown Beveridge Canyon, east base Inyo Mts., Saline Valley 640 Comment
  GH443026  Chaetadelpha wheeleri J. C. Roos 1955-5-13 6357 Unknown southeast end Eureka Valley 975 Comment
  GH443029  Chaetadelpha wheeleri J. C. Roos & A. R. Roos 1954-8-13 6208 Unknown southeast end Eureka Valley 944 Comment
  GH422039  Streptanthus cordatus J. C. Roos & L. Roos 1952-7-27 5835 Unknown S.E. rim Reed Flat, Whtie Mts. 3139 Comment
  SEINET770787  Nitrophila mohavensis J. C. Roos, A. R. Roos 1954-1 Unknown Comment
  CLARK-A1528-3294  Camissonia boothii subsp. decorticans John C. Roos 1937-6-30 2394 Ventura Comment
  CLARK-A1528-4163  Antirrhinum kelloggii John C. Roos 1956-4-8 6574 Ventura Potrero Valley Comment
  RSA659186  Eriogonum crocatum J. C. Roos 1958-5-22 s.n. Ventura Conejo grade summit on N. base of Santa Monica Mtns. Comment
  SEINET6336297  Eriogonum crocatum J. C. Roos 1958-5-22 s.n. Ventura Conejo grade summit on N. base of Santa Monica Mountains Comment
  UCR20526  Polygonum amphibium var. emersum John C. Roos, L. Roos 1954-10-9 6253 Ventura Lake Sherwood 300 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
  POM266270  Verbesina encelioides subsp. exauriculata J. C. Roos 1937-6-29 2485 Ventura Oxnard Comment
  POM266380  Picris echioides J. C. Roos 1937-7-6 1778 Ventura Ojai. Comment
  RSA450070  Antirrhinum kelloggii J. C. Roos, A. C. Sanders 1956-4-8 6574 Ventura North slope of ''Bony Mountain'' [Boney Mountain]. Potrero Valley Comment
  UCR25611  Aristida oligantha John C. Roos 1939-7-3 1517 Yuba Marysville Comment



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