Search Results — 2000 specimen records retrieved (1767 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
 Records are made available under the CCH Data Use Terms.

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CLARK-A1528-1241  Crypsis niliacea John C. Roos 1939-7-3 1521 Butte Chico Comment
  UCR25100  Paspalum urvillei Alfred R. Roos 1930-6-15 560 El Dorado Sierra Nevada Mtns, Placerville 567 Comment
  UCR19363  Trisetum spicatum John C. Roos 1965-8-8 s.n. Fresno Upper Kings Canyon Nat. Park, Bullfrog Lake Comment
  UCR23466  Ivesia pygmaea John C. Roos 1965-8-8 s.n. Fresno Sierra Nevada Mtns., Kearsarge Lake. Middle Section of Kings Canyon National Park 3354 Comment
  UCR23548  Vaccinium cespitosum John C. Roos 1965-8-8 s.n. Fresno Sierra Nevada Mtns., Kearsarge Lake. Middle Section of Kings Canyon National Park 3354 Comment
  UCR23568  Kalmia polifolia John C. Roos 1965-8-8 s.n. Fresno Sierra Nevada Mtns., Kearsarge Lake. Middle Section of Kings Canyon National Park 3354 Comment
  CLARK-A1528-1013  Machaeranthera tephrodes John C. Roos 1949-4-7 4175 Imperial Winterhaven 39 Comment
  CLARK-A1528-2766  Dalea emoryi John C. Roos 1963-6-1 Imperial 54 Comment
  CLARK-A1528-3841  Pilostyles thurberi John C. Roos 1963-6-1 Imperial Comment
  CLARK-A1528-5169  Hymenoxys odorata John C. Roos 1949-4-8 4199 Imperial 60 Comment
  POM265640  Mirabilis tenuiloba J. C. Roos 1937-6-10 1447 Imperial Coyote Wells, western edge of Colorado Desert. 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
  RSA45519  Sesuvium verrucosum J. C. Roos, Lucille Roos 1949-4-8 4192 Imperial Edge of irrigated field, Palo Verde. Comment
  RSA45527  Mentzelia longiloba var. longiloba J. C. Roos, L. Roos 1949-4-7 4160 Imperial Along All-America Canal, 35 miles SE of Niland. Comment
  RSA659179  Lotus strigosus var. tomentellus J. C. Roos 1952-3-28 659179 Imperial Truck Haven along west side Salton Sea. 0 Comment
  RSA659792  Dalea spinosa J. C. Roos 1959-6-11 s.n. Imperial Coyote Wells. Comment
Read comments
Oct 9 2010
  UCR18582  Hymenoxys odorata John C. Roos 1949-4-8 4201 Imperial Sonoran (Colorado) Desert, 4 or 5 mi. south of the Palo Verde Valley Comment
  UCR18907  Pilostyles thurberi John C. Roos 1963-6-1 s.n. Imperial Sonoran (Colorado) Desert, 0.6 mi. SE of San Felipe Wash bridge on Hwy 99 (=86), near Kane Spring -55 Comment
  UCR18984  Astragalus lentiginosus var. borreganus John C. Roos 1949-4-7 4166 Imperial Sonoran (Colorado) Desert, Sand flats west of Yuma sand dunes Comment
  UCR25917  Lotus tomentellus John C. Roos 1952-3-28 5426 Imperial Sonoran (Colorado) Desert, Truckhaven [Salton City], W side of Salton Sea 0 Comment
  UCR25918  Dalea mollis John C. Roos 1952-3-28 5428 Imperial Sonoran (Colorado) Desert, Truckhaven [Salton City], W side of Salton Sea 0 Comment
  UCR30828  Nama hispida var. revoluta John C. Roos 1949-4-7 4172 Imperial Sonoran (Colorado) Desert, Hills 14 or 15 mi. west of Yuma. Comment
  RSA0103353  Tiquilia canescens var. pulchella John C. Roos, Lucille Roos 1949-4-7 4163 Imperial East end Chocolate Mts. Comment
  RSA658694  Monolepis nuttalliana J. C. Roos 1949-4-8 4200 Imperial South of Palo Verde. Comment
Read comments
Aug 28 2016
  CAS-BOT-BC100737  Chrysothamnus viscidiflorus subsp. puberulus J. C. Roos; A. R. Roos 1953-8-8 5934 Inyo on hill behind Blue Bell Mine, Badger Flat, Inyo Mts. 2743 Comment
  CAS-BOT-BC100752  Chrysothamnus viscidiflorus subsp. puberulus John Roos; Lucille Roos 1951-8-8 5090 Inyo 3 miles NW of Cedar Flat, White Mts. 2590 Comment
  CAS-BOT-BC105965  Chrysothamnus viscidiflorus subsp. viscidiflorus J. C. Roos 1961-10-22 s.n. Inyo Loretto Road, near Loretto Mine, east side of the Inyo Mtns. Comment
  CAS-BOT-BC105967  Chrysothamnus viscidiflorus subsp. viscidiflorus J. C. Roos; A. R. Roos 1955-8-26 6553 Inyo North shoulder Waucoba Mt. - Inyo Mts. 3200 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-BC106012  Chaetadelpha wheeleri John C. Roos 1955-5-13 6357 Inyo Southeast end Eureka Valley 975 Comment
  CAS-BOT-BC110320  Kochia americana John Roos; Lucille Roos 1947-7-15 2866 Inyo Darwin Mesa. 1524 Comment
  CAS-BOT-BC110324  Nitrophila mohavensis John C. Roos 1954-7-18 6194 Inyo Amargosa Desert 3 miles northeast of Death Valley Junction along Ash Meadows road. 624 Comment
  CAS-BOT-BC110326  Nitrophila mohavensis J. C. Roos; A. R. Roos 1954-6-13 6140 Inyo Amargosa Desert 3 miles northeast of Death Valley Junction along Ash Meadows road. 624 Comment
  CAS-BOT-BC130882  Cuniculotinus gramineus J. C. Roos; A. R. Roos 1953-8-9 5945 Inyo Tamarack Canyon, Inyo Mts. 2743 Comment
  CAS-BOT-BC143019  Amelanchier utahensis John Roos; Lucille Roos 1947-7-12 2832 Inyo Thorndyke's Spring, Wild Rose Canyon - Panamint Mts. 2164 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-BC159760  Prunus andersonii J. C. Roos 1955-6-20 6457 Inyo Near Willow Spring, Last Chance Mountains 1828 Comment
  CAS-BOT-BC170653  Atriplex canescens subsp. canescens John Roos; Lucille Roos 1953-11-2 6041 Inyo Dry alkaline flat 0.2 miles N.e. of Tecopa 441 Comment
  CAS-BOT-BC178793  Astragalus calycosus J. C. Roos; A. R. Roos 1953-8-9 5958 Inyo Near head of Tamarack Canyon, Inyo Mts. 3048 Comment
  CAS-BOT-BC186596  Astragalus oophorus var. oophorus J. C. Roos; A. R. Roos 1953-8-11 5987 Inyo 2 miles east of Blue Bell Mine, Inyo Mts. 2865 Comment
  CAS-BOT-BC202054  Lupinus holmgrenianus J. C. Roos 1955-6-17 6407 Inyo 2 miles NE of Willow Spring, Last Chance Mountains 2011 Comment
  CAS-BOT-BC211141  Lomatium foeniculaceum subsp. inyoense J. C. Roos; A. R. Roos 1953-8-9 5964 Inyo Upper Tamarack Canyon, Inyo Mts. 3108 Comment
  CAS-BOT-BC218000  Achnatherum webberi John Roos; Lucille Roos 1952-7-25 5819 Inyo Between Westgard Pass and Reed Flat, White Mountains 2438 Comment
  CAS-BOT-BC218078  Achnatherum pinetorum J. C. Roos; A. R. Roos 1954-6-12 6136 Inyo N face Wild Rose Peak, Panamint Mountains 2682 Comment
  CAS-BOT-BC233723  Buddleja utahensis John C. Roos 1955-5-13 6335 Inyo West base Last Chance Mts., east of Eureka Valley sand dunes 1219 Comment
  CAS-BOT-BC237936  Cordylanthus eremicus subsp. eremicus J. C. Roos 1955-7-24 6522 Inyo Nelson Range near head of Grapevine Canyon 1889 Comment
  CAS-BOT-BC256114  Eriogonum deflexum var. deflexum John Roos; Lucille Roos 1952-6-28 6172 Inyo North base of sand dunes at SE end Eureka Valley 914 Comment
  CAS-BOT-BC262196  Eriogonum umbellatum var. versicolor J. C. Roos 1955-6-19 6432 Inyo One mile SE of Willow Spring, Last Chance Mountains 1950 Comment
  CAS-BOT-BC264936  Eriogonum wrightii var. subscaposum John Roos; Lucille Roos 1952-7-27 5826 Inyo West rim Reed Flat, White Mts. 3108 Comment
  CAS-BOT-BC265425  Penstemon floridus J. C. Roos 1955-6-18 6423 Inyo 2 miles NE of Willow Spring, Last Chance Mountains 2011 Comment
  CAS-BOT-BC268434  Eriogonum rupinum John Roos; Lucille Roos 1951-8-8 5119 Inyo Ridge 1 mile south of Reed Flat, White Mts. 2956 Comment
  CAS-BOT-BC268573  Eriogonum shockleyi J. C. Roos 1955-7-21 6484 Inyo Whitetop Peak, summit Last Chance Mountains 2560 Comment
  CAS-BOT-BC284292  Chaenactis stevioides J. C. Roos 1955-6-20 6461 Inyo Last Chance Mountains near Willow Spring 1767 Comment
  CAS-BOT-BC293315  Ericameria teretifolia J. C. Roos 1965-9-18 s.n. Inyo Wild Rose [Wildrose] Canyon, Panamint Mtns. Comment
  CAS-BOT-BC294941  Erigeron clokeyi J. C. Roos 1955-7-21 6482 Inyo North face Whitetop Peak, summit Last Chance Mountains Comment
  CAS-BOT-BC299661  Crepis nana John Roos; Lucille Roos 1947-7-13 2895 Inyo West face Telescope Peak, Panamint Mts. 3352 Comment
  CAS-BOT-BC308527  Hazardia brickellioides J. C. Roos 1955-7-23 6513 Inyo Beveridge Canyon east base Inyo Mts., Saline Valley 640 Comment
  CAS-BOT-BC326676  Pleiacanthus spinosus J. C. Roos; E. C. Jaeger 1955-7-23 6509 Inyo Soldier Flat, east base Waucoba Mountains, Inyo Mountains 2194 Comment
  CAS-BOT-BC375027  Stenotus acaulis J. C. Roos 1955-6-19 6445 Inyo Summit ridge Last Chance Mountains 2 miles west of Last Chance Spring 2529 Comment
  CAS-BOT-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-BC401926  Gilia ochroleuca subsp. ochroleuca J. C. Roos 1955-6-17 6411 Inyo 2 miles NE of Willow Spring, Last Chance Mountains 2011 Comment
  CAS-BOT-BC47537  Fendlerella utahensis J. C. Roos 1955-7-21 6486 Inyo Whitetop Peak, summit Last Chance Mountains 2529 Comment
  CAS-BOT-BC60964  Stanleya pinnata var. pinnata John C. Roos 1955-5-13 6353 Inyo Southeast end Eureka Valley. 914 Comment
  CAS-BOT-BC60966  Stanleya pinnata var. pinnata John C. Roos 1955-5-13 6353 Inyo Southeast end Eureka Valley. 914 Comment
  CAS-BOT-BC61311  Streptanthus cordatus var. cordatus J. C. Roos 1955-6-17 6399 Inyo 2 miles northeast of Willow Spring, Last Chance Mountains. 2011 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-BC90835  Artemisia nova John Roos; Lucille Roos 1947-9-20 2810 Inyo Wild Rose Canyon, Panamint Mts. 2133 Comment
  CAS-BOT-BC97989  Symphyotrichum hesperium J. C. Roos 1965-9-18 s.n. Inyo West side of Owens Lake Comment
  CAS-BOT-BC99859  Baccharis sergiloides J. C. Roos 1965-9-18 s.n. Inyo Wild Rose Canyon, Panamint Mtns. Comment
  CLARK-A1528-1101  Aster canescens John C. Roos 1953-8-8 5941 Inyo Inyo Mountains 2651 Comment
  CLARK-A1528-1185  Nitrophila occidentalis John C. Roos 1937-8-9 1957 Inyo Little Lake Comment
  CLARK-A1528-1282  Poa nevadensis John C. Roos, Alfred R. Roos 1953-8-11 6000 Inyo Inyo Mountains 3078 Comment
  CLARK-A1528-1288  Stipa pinetorum John C. Roos, Alfred R. Roos 1953-8-8 5939 Inyo Inyo Mountains 2651 Comment
  CLARK-A1528-1362  Gilia congesta John C. Roos, Alfred R. Roos 1953-8-7 5929 Inyo Inyo Mountains Comment
  CLARK-A1528-1476  Apocynum cannabinum John C. Roos 1965-7-11 Inyo Death Valley National Park Comment
  CLARK-A1528-1515  Allium validum John C. Roos 1965-8-9 Inyo Independence Creek Comment
  CLARK-A1528-1546  Amphipappus fremontii John C. Roos 1947-4-20 3581 Inyo Death Valley 914 Comment
  CLARK-A1528-1635  Baccharis sergiloides John C. Roos 1965-9-18 Inyo Panamint Mountains Comment
  CLARK-A1528-1714  Chrysothamnus nauseosus subsp. mohavensis John C. Roos, Lucille Roos 1947-9-19 2804 Inyo Panamint Mountains 2743 Comment
  CLARK-A1528-1752  Chrysothamnus viscidiflorus subsp. stenophyllus John C. Roos 1941-8-16 67 Inyo Death Valley National Park 1371 Comment
  CLARK-A1528-1933  Hecastocleis shockleyi John C. Roos, Lucille Roos 1954-5-8 6094 Inyo Grapevine Mountains 1645 Comment
  CLARK-A1528-1997  Stephanomeria spinosa John C. Roos 1955-7-23 6509 Inyo Inyo Mountains 2194 Comment
  CLARK-A1528-2145  Viguiera reticulata John C. Roos 1947-4-20 3508 Inyo Death Valley 701 Comment
  CLARK-A1528-2242  Lappula redowskii John C. Roos, Lucille Roos 1954-6-26 6155 Inyo Inyo Mountains 2682 Comment
  CLARK-A1528-2341  Stanleya pinnata subsp. inyoensis John C. Roos 1954-8-13 6209 Inyo Eureka Valley 914 Comment
  CLARK-A1528-2495  Atriplex parryi John C. Roos 1950-4-7 4726 Inyo Tecopa 426 Comment
  CLARK-A1528-2545  Atriplex confertifolia John C. Roos 1938-4-18 Inyo Death Valley National Park Comment
  CLARK-A1528-2580  Eurotia lanata John C. Roos 1937-8-5 1029 Inyo White Mountains Comment
  CLARK-A1528-2590  Nitrophila mohavensis John C. Roos 1954-7-18 6194 Inyo Death Valley Junction 624 Comment
  CLARK-A1528-2594  Nitrophila mohavensis John C. Roos 1954-6-13 6140 Inyo Death Valley Junction 624 Comment
  CLARK-A1528-2601  Suaeda depressa var. erecta John C. Roos, Lucille Roos 1954-9-14 6236 Inyo Amargosa Desert 624 Comment
  CLARK-A1528-2636  Euphorbia fendleri John C. Roos 1953-8-13 6022 Inyo Inyo Mountains 2499 Comment
  CLARK-A1528-2646  Camissonia heterochroma John C. Roos, Alfred R. Roos 1954-8-14 6213 Inyo Inyo Mountains 2316 Comment
  CLARK-A1528-2675  Ephedra viridis John C. Roos 1949-4-7 Inyo Panamint Mountains Comment
  CLARK-A1528-2872  Prosopis pubescens John C. Roos 1965-7-11 Inyo Death Valley Comment
  CLARK-A1528-3033  Triglochin concinna var. debilis John C. Roos, Lucille Roos 1954-5-7 6078 Inyo Amargosa Desert 624 Comment
  CLARK-A1528-3034  Triglochin concinna var. debilis John C. Roos 1965-7-11 Inyo Tecopa 426 Comment
  CLARK-A1528-3114  Salvia funerea John C. Roos, Lucille Roos 1954-3-27 6051 Inyo Death Valley National Park 853 Comment
  CLARK-A1528-3158  Eucnide urens John C. Roos 1947-4-19 3483 Inyo Death Valley National Park Comment
  CLARK-A1528-3170  Mentzelia reflexa John C. Roos 1947-4-19 3480 Inyo Death Valley National Park Comment
  CLARK-A1528-3173  Petalonyx nitidus John C. Roos, Lucille Roos 1954-6-28 6169 Inyo Inyo Mountains 1676 Comment
  CLARK-A1528-3196  Calochortus nuttallii John C. Roos, Lucille Roos 1952-7-26 5823 Inyo White Mountains 3047 Comment
  CLARK-A1528-3306  Oenothera avita subsp. eurekensis John C. Roos 1961-10-21 Inyo Eureka Valley Comment
  CLARK-A1528-3463  Leptodactylon pungens John C. Roos 1937-8-8 1671 Inyo Sierra Nevada Comment
  CLARK-A1528-3513  Gilia scopulorum John C. Roos 1955-4-6 6298 Inyo Inyo Mountains 502 Comment
  CLARK-A1528-3521  Gilia ripleyi John C. Roos, Lucille Roos 1954-6-13 6138 Inyo Panamint Mountains 1219 Comment
  CLARK-A1528-3586  Pinus longaeva John C. Roos 1941-8-17 probably 117 Inyo Panamint Mountains 3291 Comment
  CLARK-A1528-3660  Eriogonum intrafractum John C. Roos, Lucille Roos 1954-5-8 Inyo Grapevine Mountains 1280 Comment
  CLARK-A1528-3701  Eriogonum reniforme John C. Roos 1941-8-17 53 Inyo Panamint Mountains 2804 Comment
  CLARK-A1528-3715  Eriogonum umbellatum subsp. aridum John C. Roos, Lucille Roos 1952-7-30 5858 Inyo White Mountains Comment
  CLARK-A1528-3717  Eriogonum umbellatum John C. Roos 1949-9-2 4645 Inyo 2133 Comment
  CLARK-A1528-3861  Delphinium parishii subsp. parishii John C. Roos 1947-4-19 3468 Inyo Death Valley National Park Comment
  CLARK-A1528-3986  Chamaebatiaria millefolium John C. Roos, Lucille Roos 1951-8-12 5188 Inyo White Mountains 2895 Comment
  CLARK-A1528-3996  Holodiscus discolor John C. Roos 1941-8-17 62 Inyo Panamint Mountains 2590 Comment
  CLARK-A1528-4073  Anemopsis californica John C. Roos 1947-4-20 3506 Inyo Furnace Creek 76 Comment
  CLARK-A1528-4101  Jamesia americana John C. Roos 1956-9-29 6602 Inyo Panamint Mountains Comment
  CLARK-A1528-4204  Cordylanthus tecopensis John C. Roos, Alfred R. Roos 1954-6-13 Inyo Death Valley Junction 624 Comment
  CLARK-A1528-4206  Cordylanthus tecopensis John C. Roos 1953-10-31 6033 Inyo Amargosa River 441 Comment
  CLARK-A1528-4231  Mimulus bigelovii var. cuspidatus John C. Roos, Lucille Roos 1952-7-31 5879 Inyo White Mountains 2438 Comment
  CLARK-A1528-4435  Larrea tridentata John C. Roos 1947-1-26 3213 Inyo Furnace Creek 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-A1528-4975  Chaenactis douglasii John C. Roos 1941-8-17 51 Inyo Panamint Mountains 3200 Comment
  CLARK-A1528-4977  Acer glabrum John C. Roos 1947-7-14 2849 Inyo Panamint Mountains Comment
  CLARK-A1528-5092  Fritillaria pinetorum John C. Roos 1967-8-6 Inyo Inyo Mountains 2773 Comment
  CLARK-A1528-5202  Cordylanthus tecopensis John C. Roos 1950-4-8 4729 Inyo Tecopa 426 Comment
  CLARK-A1528-5267  Stipa comata John C. Roos, Lucille Roos 1955-6-26 6162 Inyo Inyo Mountains 2621 Comment
  CLARK-A1528-5273  Stipa comata John C. Roos, Lucille Roos 1951-8-8 5088 Inyo White Mountains 2590 Comment
  CLARK-A1528-5274  Stipa thurberiana John C. Roos, Lucille Roos 1951-8-8 5087 Inyo White Mountains 2590 Comment
  CLARK-A1528-5276  Stipa pinetorum John C. Roos, Alfred R. Roos 1954-6-12 6132 Inyo Panamint Range 2499 Comment
  CLARK-A1528-5315  Cyperus laevigatus John C. Roos, Lucille Roos 1953-11-2 6042 Inyo Tecopa Hot Springs 426 Comment
  CLARK-A1528-5317  Oenothera heterochroma subsp. monoensis John C. Roos, Alfred R. Roos 1954-8-14 6213 Inyo Inyo Mountains 2316 Comment
  CLARK-A1528-5340  Perityle megalocephala var. oligophylla John C. Roos 1953-8-10 5979 Inyo Inyo Mountains 2499 Comment
  CLARK-A1528-5418  Nitrophila mohavensis John C. Roos 1954-5-7 6079 Inyo Death Valley Junction 624 Comment
  CLARK-A1528-5419  Nitrophila mohavensis John C. Roos 1954-7-18 6194 Inyo Death Valley Junction 624 Comment
  CLARK-A1528-5555  Swallenia alexandrae John C. Roos, Lucille Roos 1955-4-10 6320 Inyo Eureka Valley Comment
  CLARK-A1528-5606  Haplopappus racemosus subsp. sessiliflorus John C. Roos 1965-9-18 Inyo Lone Pine Comment
  CLARK-A1528-5631  Solidago multiradiata John C. Roos 1937-8-8 2379 Inyo Lone Pine Canyon Comment
  CLARK-A1528-5689  Eucnide urens John C. Roos 1947-4-19 3483 Inyo Death Valley National Park Comment
  LA102180  Distichlis spicata Alfred R. Roos; 1950-8-7 sn Inyo Amargosa River Valley, Tecopa Hot Springs, about 2 mi. N of Tecopa 426 Comment
  LA102278  Pericome caudata J. C. Roos; 1956-8-29 6595 Inyo Panamint Mountains, at the head of Death Valley Canyon Comment
  LA102336  Atriplex lentiformis Alfred R. Roos; 1950-8-7 sn Inyo China Ranch on the Amargosa River S of Tecopa 426 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
  LA102438  Pericome caudata J. C. Roos; 1956-8-29 6595 Inyo Panamint Mountains, at the head of Death Valley Canyon Comment
  NY185734  Stanleya pinnata subsp. inyoensis J. C. Roos 1954-6-28 6177 Inyo Southeast end of Eureka Valley 3000 Comment
  NY324360  Nitrophila mohavensis J. C. Roos 1954-6-13 6140 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
  NY675417  Astragalus kentrophyta var. implexus J. C. Roos 1951-8-9 5124 Inyo Reed Flat, White Mountains 3170 Comment
  NY676927  Astragalus newberryi var. castoreus J. C. Roos 1953-8-9 5957 Inyo Tamarack Canyon, Inyo Mountains 3048 Comment
  NY9664  Swallenia alexandrae J. C. Roos 1954-6-28 6175 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
  OBI33221  Galium hypotrichium subsp. tomentellum J. C. Roos 1965-7-10 s.n. Inyo S slope of Telescope Peak, near peak, Panamint Mts Comment
  POM261212  Melica stricta J. C. Roos 1941-8-17 50 Inyo Panamint Mountains Comment
  POM261400  Chrysothamnus viscidiflorus subsp. viscidiflorus J. C. Roos 1941-8-17 55 Inyo Telescope Peak, Panamint Mts 3366 Comment
  POM261401  Chamaebatiaria millefolium J. C. Roos 1941-8-17 28 Inyo Panamint Mountains Comment
  POM261428  Eriogonum microtheca var. panamintense J. C. Roos 1941-8-15 73 Inyo Mahogany Flats 2470 Comment
  POM263125  Pinus balfouriana J. C. Roos 1937-8-8 341 Inyo Lone Pine Canyon. 2744 Comment
  POM263545  Ivesia pygmaea J. C. Roos 1937-8-8 534 Inyo Lone Pine Canyon. 2744 Comment
  POM264157  Monardella odoratissima subsp. parvifolia J. C. Roos 1937-8-8 528 Inyo Lone Pine Canyon. 2744 Comment
  POM266293  Baccharis salicifolia J. C. Roos 1938-4-15 1627 Inyo on stony bank, Darwin Fall. Comment
  POM274200  Eriogonum fasciculatum var. polifolium J. C. Roos 1947-7-15 2872 Inyo Wildrose Canyon. Panamint Mountain Range. 1982 Comment
  POM274209  Chrysothamnus nauseosus subsp. hololeucus J. C. Roos 1947-9-19 1949 Inyo Rocky ridge between Telescope Peak and Raldy Peak, Panamint Mt. 3049 Comment
  RSA100186  Eriogonum shockleyi var. shockleyi J. C. Roos 1955-6-19 6449 Inyo Whitetop Peak, Last Chance Mts. 2 miles west of Last Chance spring. Comment
  RSA104820  Chaetadelpha wheeleri J. C. Roos 1955-5-13 6357 Inyo Eureka Valley. 976 Comment
  RSA104829  Scopulophila rixfordii J. C. Roos 1955-5-13 6340 Inyo West base Last Chance Mountains, east of Eureka Valley sand dunes. 1220 Comment
  RSA104830  Purshia stansburyana J. C. Roos 1955-5-13 6342 Inyo West base Last Chance Mountains, east of Eureka Valley sand dunes. 1220 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
  RSA105023  Astragalus serenoi J. C. Roos 1955-5-15 6372 Inyo Last Chance Mountains: 0.5 miles west of Willow Springs. 1767 Comment
  RSA105033  Phacelia rotundifolia J. C. Roos 1955-5-13 6327 Inyo West base Last Chance Mountains east of Eureka Valley sand dunes. 1159 Comment
  RSA105040  Buddleja utahensis J. C. Roos 1955-5-13 6335 Inyo West base Last Chance Mountains, east of Eureka Valley sand dunes 1220 Comment
  RSA153104B  Panicum capillare J. C. Roos, E. C. Jaeger 1955-7-23 6518 Inyo Saline Valley below mouth of Hunter Canyon 351 Comment
  RSA155655  Cordylanthus kingii subsp. helleri J. C. Roos, A. R. Roos 1955-8-25 6548 Inyo Soldier flat, east base Waucoba Mts. Inyo Mts. 2165 Comment
  RSA155656  Krascheninnikovia lanata J. C. Roos, A. Roos 1955-8-25 6547 Inyo Little Cowhorn Valley, Inyo Mts. 2188 Comment
  RSA155688  Phlox stansburyi subsp. superba J. C. Roos 1955-6-20 6454 Inyo Last Chance Mountains, 2 miles NE of Willow Spring. 2012 Comment
  RSA155699  Eriogonum brachypodum J. C. Roos 1955-7-22 6498 Inyo Last Chance Mountains, Willow Creek, west slope of mountains 1616 Comment
  RSA155700  Camissonia boothii subsp. desertorum J. C. Roos 1955-7-22 6497 Inyo Last Chance Mountains, Willow Creek, west slope of mountains 1616 Comment
  RSA155709  Salvia dorrii subsp. dorrii J. C. Roos 1955-7-21 6488 Inyo Whitetop Peak, summit Last Chance Mountains 2561 Comment
  RSA155715  Eriogonum heermannii var. argense J. C. Roos, A. R. Roos 1955-8-24 6537 Inyo Ridge 2 miles south of Willow Spring, Last Chance Mts. 2287 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
  RSA155745  Erigeron clokeyi J. C. Roos 1955-7-21 6482 Inyo Whitetop Peak, summit Last Chance Mountains 2500 Comment
  RSA157086  Eriogonum umbellatum var. versicolor J. C. Roos 1955-6-19 6432 Inyo One mile SE of Willow Spring, Last Chance Mountains. 1951 Comment
  RSA157867  Petrophytum caespitosum J. C. Roos, A. R. Roos 1955-8-26 6550 Inyo Canyon on east side of saddle between Squaw Peak and Waucoda Mt. Inyo mts. 2683 Comment
  RSA158100  Eriogonum brachyanthum J. C. Roos 1955-7-24 6523 Inyo Nelson Range near head of Grapevine Canyon 1890 Comment
  RSA158101  Cordylanthus eremicus subsp. eremicus J. C. Roos 1955-7-24 6522 Inyo Nelson Range near head of Grapevine Canyon 1890 Comment
  RSA158112  Eriogonum cernuum J. C. Roos 1955-7-23 6507 Inyo Soldier Flat at east base Waucoba Mountain, Inyo Mountains. 2195 Comment
  RSA34197  Stephanomeria pauciflora J. C. Roos 1947-6-15 2828 Inyo Wildrose Canyon, Panamint Mountains. 915 Comment
  RSA40579  Linum lewisii J. C. Roos 1947-7-13 2886 Inyo Arcane Meadows, Panamint Mountains. 3049 Comment
  RSA40589  Sambucus mexicana J. C. Roos 1947-7-11 2846 Inyo Upper Wildrose Canyon, Panamint Mountains. Comment
  RSA40591  Jamesia americana var. californica J. C. Roos 1947-7-14 2848 Inyo Panamint Mountains, north slope of Baldy Peak 2744 Comment
  RSA40599  Penstemon fruticiformis J. C. Roos 1947-7-15 2867 Inyo Rocky slope of canyon bottom, Wildrose Canyon. Panamint Mts. 1677 Comment
  RSA40600  Brickellia oblongifolia var. linifolia J. C. Roos 1947-7-15 2868 Inyo Wildrose Canyon at Kilns, Panamint Mts. Comment
  RSA449947  Pericome caudata J. C. Roos 1956-8-29 6595 Inyo Head of Death Valley Canyon, Panamint Mtns. Comment
  RSA450064  Ephedra viridis J. C. Roos 1965-7-10 s.n. Inyo Arcane Meadow near Telescope Peak, Panamint Mtns. Comment
  RSA450441  Distichlis spicata var. stolonifera J. C. Roos 1965-7-11 s.n. Inyo 2 miles NE of Death Valley Junction. 623 Comment
  RSA457390  Poa bigelovii J. C. Roos 1955-4-6 6285 Inyo Canyon bottom of Beveridge Canyon, on the E base of the Inyo Mtns. 671 Comment
  RSA457399  Andropogon glomeratus J. C. Roos 1965-7-11 s.n. Inyo Furnace Creek, Death Valley. Comment
  RSA47568  Cleomella brevipes J. C. Roos, Weatherby 1949-9-3 3565 Inyo Tecopa Hot Springs 427 Comment
  RSA48871  Iva acerosa J. C. Roos 1949-9-3 4651 Inyo E end of Tecopa oasis. 457 Comment
  RSA592493  Cleomella obtusifolia J. C. Roos 1965-7-11 s.n. Inyo Death Valley Junction. Comment
  RSA593756  Bahiopsis reticulata J. C. Roos 1956-9-30 6604 Inyo Wildrose Canyon, 1 mi below Wildrose Sta. Panamint Mtns. Comment
  RSA659184  Physocarpus alternans J. C. Roos 1965-7-10 s.n. Inyo Eagle Springs, Panamint Mtns. Comment
  RSA659491  Euphorbia ocellata subsp. ocellata J. C. Roos, L. Roos 1954-6-28 6180 Inyo SE end of Eureka Valley. Comment
  RSA662412  Chrysothamnus viscidiflorus J. C. Roos, A. R. Roos 1953-8-8 5933 Inyo Blue Bell Mine, Badger Flat, Inyo Mtns. 2683 Comment
  RSA71717  Calochortus bruneaunis J. C. Roos 1952-7-26 5823 Inyo East side Reed Flat at head of Birch Creek, White Mts. 3049 Comment
  RSA71718  Frasera puberulenta J. C. Roos, L. Roos 1952-7-26 5824 Inyo East side Reed Flat at head of Birch Creek, White Mts. 3049 Comment
  RSA71738  Navarretia breweri J. C. Roos, L. Roos 1952-7-28 5855 Inyo White Mountains; head of Wyman Canyon 3201 Comment
  RSA71769  Poa secunda J. C. Roos 1951-8-8 5117 Inyo SE rim Reed flat, White Mts 3079 Comment
  RSA72071  Pellaea breweri J. C. Roos, Lucille Roos 1951-8-12 5190 Inyo 1.5 miles South of Reed Flat, White Mts. 2895 Comment
  RSA72074  Chamaebatiaria millefolium J. C. Roos, L. Roos 1951-8-12 5188 Inyo 1.5 miles South of Reed Flat, White Mts. 2896 Comment
  RSA74555  Elymus X hansenii J. C. Roos, L. Roos 1951-8-8 5094 Inyo Head of Wyman Canyon, White Mountains. 3171 Comment
  RSA74570  Cirsium arizonicum J. C. Roos 1952-7-28 5850 Inyo Wyman Canyon, White Mts 2896 Comment
  RSA74575  Galium hypotrichium subsp. tomentellum J. C. Roos, Lucille Roos 1947-7-13 2876 Inyo Telescope Peak, Panamint Mountains. 3262 Comment
  RSA74601  Astragalus kentrophyta var. elatus J. C. Roos, Lucille Roos 1952-7-26 5820 Inyo East side Reed Flat at head of Birch Creek, White Mts. 3049 Comment
  RSA74609  Eriogonum umbellatum var. versicolor J. C. Roos, L. Roos 1951-8-9 5126 Inyo Reed Flat, White Mountains 3171 Comment
  RSA79482  Eriogonum umbellatum var. versicolor J. C. Roos, A. R. Roos 1953-8-13 6012 Inyo Along crest of Inyo mts. 3 miles east of Badger flat. 3262 Comment
  RSA79486  Salsola tragus J. C. Roos, A. Roos 1953-8-13 6008 Inyo Tamarack Canyon. 2744 Comment
  RSA79502A  Juniperus osteosperma J. C. Roos, A. R. Roos 1953-8-14 6023 Inyo Badger Flat, Inyo Mts. 2621 Comment
  RSA79542  Stephanomeria spinosa J. C. Roos, A. R. Roos 1953-8-11 5991 Inyo 2 miles east of Blue Bell Mine, Inyo Mts. 2866 Comment
  RSA79543  Senecio spartioides J. C. Roos, A. R. Roos 1953-8-11 5990 Inyo 2 miles east of Blue Bell Mine, Inyo Mountains 2866 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
  RSA79649  Cercocarpus intricatus J. C. Roos, A. R. Roos 1953-8-10 5975 Inyo Inyo Mountains, Mazourka Canyon. 2470 Comment
  RSA79664  Brickellia oblongifolia var. linifolia J. C. Roos, A. R. Roos 1953-8-8 5944 Inyo NW rim of Badger Flat, Inyo Mts. 2591 Comment
  RSA79695  Astragalus purshii var. lectulus J. C. Roos, A. R. Roos 1953-8-9 5957 Inyo Tamarack Canyon 3048 Comment
  RSA79710  Penstemon scapoides J. C. Roos 1953-8-8 5936 Inyo Blue Bell Mine, Badger flat, Inyo Mountains 2744 Comment
  RSA79715  Ribes cereum J. C. Roos, A. R. Roos 1953-8-9 5970 Inyo Ridge southeast of Tamarack Canyon, Inyo Mountains 3232 Comment
  RSA85132  Salvia funerea J. C. Roos 1954-3-27 6051 Inyo 0.2 miles below Hole-in-the-Rock Spring, Boundary Canyon, Death Valley. 854 Comment
  RSA89030  Chrysothamnus albidus J. C. Roos 1954-8-15 6224 Inyo Lower Warm Spring, Saline Valley. 427 Comment
  RSA89043  Caulostramina jaegeri J. C. Roos, L. Roos 1954-6-29 6185 Inyo Inyo Mountains; The Narrows, Marble Canyon 2195 Comment
  RSA89046  Chaetadelpha wheeleri J. C. Roos 1954-6-28 6174 Inyo Southeast end of Eureka Valley 930 Comment
  RSA89525  Nitrophila mohavensis J. C. Roos 1954-9-14 6234 Inyo Amargosa Desert 3 miles NE of Death Valley Junction along Ash Meadows road 625 Comment
  RSA89532  Nitrophila mohavensis J. C. Roos 1954-5-7 6079 Inyo Amargosa Desert 3 miles NE of Death Valley Junction along Ash Meadows road 625 Comment
  RSA89533  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
  RSA92465  Camissonia walkeri subsp. tortilis J. C. Roos, Lucille Roos 1954-5-9 6109 Inyo Emigrant Canyon, Panamint Mts. 1220 Comment
  SD50072  Nitrophila mohavensis John C. Roos 1954-7-18 6194 Inyo Amargosa Desert 3.0 miles northeast of Death Valley Junction along Ash Meadows road. 625 Comment
  SD52866  Centrostegia thurberi J. C. Roos 1955-6-18 6422 Inyo 2 miles NE of Willow Spring, Last Chance Mountains 2012 Comment
  SD52922  Oxytheca dendroidea subsp. dendroidea John C. Roos 1955-7-23 6504 Inyo Soldier Flat, east base Waucoba Mountain, Inyo Mountains, dry disturbed roadside 2194 Comment
  SD52933  Fraxinus anomala J. C. Roos 1955-6-19 6441 Inyo Last Chance Mountains, 3.0 miles south of Willow Spring. 2377 Comment
  SD52999  Eriogonum nummulare John C. Roos 1955-7-20 6476 Inyo 0.1 mile NW of boundary marker #80, Last Chance Mountains 2 miles east of Willow Spring 2073 Comment
  SD53000  Hazardia brickellioides J. C. Roos 1955-7-23 6513 Inyo Beveridge Canyon, east base Inyo Mountains, Saline Valley 640 Comment
  SD53012  Stipa comata John C. Roos 1955-6-19 6453 Inyo Willow Spring, Last Chance Mountains 1829 Comment
  SD53014  Chorizanthe brevicornu var. spathulata J. C. Roos 1955-6-20 6459 Inyo Last Chance Mountains 2 miles NE of Willow Spring 1951 Comment
  SEINET218257 Image available Philadelphus microphyllus var. stramineus John Roos 1941-1 46 Inyo Panamint Mts. East slope of Mt. Baldy. Comment
  UC1010208  Astragalus oophorus John and Lucille Roos 1952-7-29 5857 Inyo Reed Flat , Reed Flat (White Mts.) 3078 Comment
  UC1010221  Pleiacanthus spinosus John C. Roos 1947-7-11 2902 Inyo Mahogany Flats Panamint Mts. 2438 Comment
  UC1010257  Astragalus newberryi J. C. and A. R. Roos 1953-8-9 5957 Inyo Tamarack Canyon , Tamarack Canyon (Inyo Mts.) 3048 Comment
  UC1010258  Astragalus calycosus var. calycosus J. C. and A. R. Roos 1953-8-9 5958 Inyo near head Tamarack Canyon Inyo Mts. Tamarack Canyon (Inyo Mts.) 3048 Comment
  UC1010260  Astragalus lentiginosus var. semotus J. C. and A. R. Roos 1953-8-9 5965 Inyo upper end Tamarack Canyon (Inyo Mts.); , upper end Tamarack Canyon 3108 Comment
  UC1010269  Ericameria albida J. C. and A. R. Roos 1954-8-15 6224 Inyo Saline Valley, Lower Warm Spring 426 Comment
  UC1010275  Cordylanthus tecopensis John and Lucille Roos 1954-9-14 6231 Inyo 3 mi s Shoshone (along Amargosa River); Amargosa River 432 Comment
  UC1010293  Centaurium exaltatum John C. Roos, M. D. and Alfred R. Roos, M. D. 1950-8-7 4927 Inyo Tecopa; e 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
  UC1010337  Chrysothamnus viscidiflorus subsp. puberulus J. C. and A. R. Roos 1953-8-8 5933 Inyo Blue Bell Mine Inyo Mts., Badger Flat 2682 Comment
  UC1010338  Ipomopsis congesta J. C. and A. R. Roos 1953-8-7 5929 Inyo Blue Bell Mine Inyo Mtns, Badger Flat 2682 Comment
  UC1010485  Nitrophila mohavensis J. C. Roos and A. R. Roos 1954-6-13 6140 Inyo along Ash Meadows road 3 mi ne Death Valley Junction; Amorgosa Desert; Amargosa Desert, NE of Death Valley, Inyo Co. 624 Comment
  UC1018152 Image available Lomatium foeniculaceum subsp. inyoense John and Lucille Roos 1954-6-24 6148 Inyo 3 mi e Badger Flat (near Side Hill Spring, pass at crest of Inyo Mts); Inyo Mts.; Badger Flat, Inyo Mts., Inyo Co. 3108 Comment
  UC1023377  Achnatherum thurberianum John and Lucille Roos 1951-8-8 5087 Inyo 3 mi nw Cedar Flat; White Mts. 2590 Comment
  UC1023399  Elymus elymoides subsp. elymoides J. C. and A. R. Roos 1953-8-13 6016 Inyo 3 mi e Badger Flat (crest of mts.); Inyo Mts. 3230 Comment
  UC1023436  Piptatherum micranthum John and Lucille Roos 1952-7-28 5840 Inyo Wyman Canyon White Mts., Wyman Canyon (steep rocky n wall) Comment
  UC1026577  Achnatherum pinetorum J. C. and A. R. Roos 1954-6-12 6132 Inyo 1 mi ese Wild Rose Peak (ridge between Wild Rose and Trail Canyons); Panamint Mts. 2499 Comment
Read comments
Jan 20 2012
  UC1042979  Cryptantha hoffmannii J. C. and A. R. Roos 1954-6-12 6137 Inyo Wild Rose Peak, Panamint Mts. 2758 Comment
  UC1042980  Lappula redowskii John and Lucille Roos 1954-6-26 6155 Inyo mouth of Tamarack Canyon; Inyo Mts., Tamarack Canyon 2682 Comment
  UC1042989  Jamesia americana var. rosea John and Lucille Roos 1954-6-29 6186 Inyo The Narrows Inyo Mts., Marble Canyon, The Narrows 2194 Comment
  UC1042997  Ericameria gilmanii A. R. and J. C. Roos 1954-8-14 6216 Inyo The Narrows Inyo Mts., Marble Canyon 2179 Comment
  UC1080601  Acamptopappus shockleyi John C. Roos 1955-5-13 6345 Inyo e, in sand dunes, at w base of Last Chance Mts Eureka Valley; Last Chance Mts. 1280 Comment
  UC1080604  Buddleja utahensis John C. Roos 1955-5-13 6335 Inyo e Eureka Valley sand dunes (w base of Last Chance Mts.); w base Last Chance Mts., e of Eureka Valley sand dunes 1219 Comment
  UC1080612  Astragalus casei John C. Roos 1955-5-15 6373 Inyo 0.5 mi w Willow Spring (Last Chance Mts.); , w of Willow Spring 1767 Comment
  UC1080615  Penstemon calcareus John C. Roos 1955-5-13 6344 Inyo e Eureka Valley sand dunes (w base Last Chance Mts.); , e of Eureka Valley sand dunes 1310 Comment
  UC1080637  Lupinus shockleyi John C. Roos 1955-5-13 6360 Inyo sand dunes at mouth of Marble Canyon mouth of Marble Canyon (w side Eureka Valley); , Mouth of Marble Canyon 1036 Comment
  UC1105692  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
  UC1117444  Panicum capillare J. C. Roos and E. C. Jaeger 1955-7-23 6518 Inyo below mouth Hunter Canyon (Saline Valley); , Hunter Canyon Comment
  UC1117606  Achnatherum pinetorum J. C. Roos 1955-7-21 6480 Inyo Whitetop Mountains, summit of Last Chance Mountains Last Chance Mountains 2499 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
  UC1234669  Artemisia michauxiana J. C. and A. R. Roos 1955-8-26 6555 Inyo summit Waucoba Mt.; Inyo Mts., Waucoba Mt. 3383 Comment
  UC1234672  Eriogonum nummulare J. C. Roos 1955-7-20 6476 Inyo 2 mi e Willow Spring (0.1 mi nw of boundary marker # 80); Last Chance Mountains 2072 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
  UC1234732  Artemisia rothrockii J. C. and A. R. Roos 1955-8-26 6558 Inyo summit of Waucoba Mt. Inyo Mts., Waucoba Mt. 3383 Comment
  UC1234817  Chorizanthe brevicornu var. spathulata J. C. Roos 1955-6-20 6459 Inyo 2 mi ne Willow Spring; Last Chance Mountains 1950 Comment
  UC1234822  Keckiella rothrockii J. C. Roos 1955-7-21 6494 Inyo 1 mi s Willow Spring; Last Chance Mountains 2072 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
  UC1234832  Erigeron breweri var. porphyreticus J. C. Roos 1955-6-20 6456 Inyo 2 mi e Willow Springs; Last Chance Mountains 1981 Comment
  UC1234836  Eriogonum heermannii var. argense J. C. and A. R. Roos 1955-8-24 6537 Inyo ridge 2 mi s Willow Spring; Last Chance Mts. 2286 Comment
  UC1234847  Penstemon speciosus J. C. Roos 1955-6-17 6402 Inyo 2 mi ne Willow Spring; Last Chance Mountains 2011 Comment
  UC1234853  Ericameria parryi var. aspera J. C. and A. R. Roos 1955-8-26 6551 Inyo saddle on main ridge between Squaw Peak Waucoba Mt.; Inyo Mts 2956 Comment
  UC1234865  Eriastrum wilcoxii J. C. Roos 1955-6-17 6416 Inyo 2 mi ne Willow Spring; Last Chance Mountains 2011 Comment
  UC1234870  Lappula redowskii J. C. Roos 1955-6-17 6408 Inyo 2 mi. n.e. Willow Spring; Last Chance Mts. 2011 Comment
  UC1234879  Erigeron argentatus J. C. Roos 1955-6-18 6424 Inyo 2 mi ne Willow Spring; Last Chance Mountains 2011 Comment
  UC1234881  Eriogonum umbellatum var. versicolor J. C. Roos 1955-6-19 6432 Inyo 1 mi se Willow Spring; Last Chance Mts. 1950 Comment
  UC1236228  Sphaeralcea ambigua var. rosacea John C. Roos 1955-5-15 6379 Inyo Willow Creek; Last Chance Mts. 1524 Comment
  UC1236238  Ribes velutinum John C. Roos 1955-5-15 6368 Inyo 0.5 mi w Willow Springs; Last Chance Mts. 1767 Comment
  UC1236250  Brickellia atractyloides John C. Roos 1955-5-13 6337 Inyo e of Eureka Valley sand dunes; Last Chance Mts. (west base) 1219 Comment
  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
  UC1236259 Image available Astragalus lentiginosus var. micans John C. Roos 1955-5-13 6354 Inyo se end Eureka Valley; se end Eureka Valley 929 Comment
  UC1236267  Hecastocleis shockleyi John C. Roos 1955-5-13 6348 Inyo e Eureka Valley sand dunes (w base of mountains); Last Chance Mts. 1310 Comment
  UC1494278  Dichanthelium acuminatum subsp. fasciculatum John and Lucille Roos 1954-11-24 6262 Inyo mouth Beveridge Canyon (e base Inyo Mts., Saline Valley); e base Inyo Mountains, Saline Valley, mouth Beveridge Canyon 609 Comment
  UC1551953  Cordylanthus kingii subsp. helleri J. C. Roos 1958-8-30 Inyo Badger Flat; Inyo Mts. Comment
  UCD134879  Pericome caudata J. C. Roos 1956-8-29 6595 Inyo at the head of Death Valley Canyon in the Panamint Mountains. Comment
  UCD135001  Psathyrotes annua J. C. Roos 1965-9-18 s.n. Inyo Argus Mountains, near Crowley Point. Comment
  UCR18768  Suaeda calceoliformis John C. Roos, L. Roos 1954-9-14 6236 Inyo Northern Mojave Desert, Amargosa desert, 2.7 mi. NE of Death Valley Junction, along Ash Meadows road 625 Comment
  UCR18796  Tiquilia nuttallii John C. Roos 1937-8-6 1961 Inyo Sierra Nevada Mtns, Big Pine Comment
  UCR18851  Centaurium exaltatum John C. Roos 1947-4-20 3978 Inyo Northern Mojave Desert, Death Valley National Monument [Park], Warm Springs, Furnace Creek 76 Comment
  UCR18894  Atriplex hymenelytra John C. Roos 1965-7-11 s.n. Inyo Northern Mojave Desert, Stovepipe Wells, Death Valley 0 Comment
  UCR18932  Purshia stansburyana John C. Roos 1965-7-11 s.n. Inyo Northern Mojave Desert, Panamint Mtns, Mahogany Flats 2470 Comment
  UCR18951  Cleomella obtusifolia John C. Roos 1965-7-11 s.n. Inyo Northern Mojave Desert, Death Valley Junction 640 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
  UCR18971  Chenopodium leptophyllum John C. Roos 1967-4-6 s.n. Inyo Inyo Mtns, Al Rose Canyon 2054 Comment
  UCR18974  Astragalus kentrophyta John C. Roos 1967-8-5 s.n. Inyo White Mtns, Crest of range, east of Badger Flat Comment
  UCR19025  Camissonia claviformis John C. Roos, L. Roos 1954-5-9 6109 Inyo Northern Mojave Desert, Emigrant Canyon, Panamint Mtns 1220 Comment
  UCR19036  Penstemon davidsonii John C. Roos 1965-8-9 s.n. Inyo Sierra Nevada Mountains, east side of Kearsage Pass Comment
  UCR19051  Mimulus nanus var. mephiticus John C. Roos, L. Roos 1952-7-28 5846 Inyo White Mtns, Wyman Canyon 2683 Comment
  UCR19059  Penstemon scapoides John C. Roos, L. Roos 1952-7-28 5853 Inyo White Mtns., Wyman Canyon 2744 Comment
Read comments
Dec 6 2011
  UCR19060  Penstemon scapoides John C. Roos 1958-7-5 s.n. Inyo Northern Mojave Desert, Inyo Mountains, near Badger Flats 2683 Comment
  UCR19084  Sambucus racemosa John C. Roos 1965-8-9 s.n. Inyo Sierra Nevada Mountains, moraine at Gilbert Lake, near Kearsarge Pass 3178 Comment
  UCR19089  Lesquerella kingii John C. Roos, L. Roos 1952-7-26 5821 Inyo White Mtns, east side of Reed Flat at head of Birch Creek 3049 Comment
  UCR19176  Cladium californicum John C. Roos 1949-4-20 3499 Inyo Death Valley, Warm Spring, Furnace Creek. 76 Comment
  UCR19186  Erigeron uncialis John C. Roos 1954-6-26 6160 Inyo Inyo Mountains, Mazourka Canyon, near SE end of Badger Flats 2622 Comment
  UCR19216  Pinus balfouriana John C. Roos 1965-8-9 s.n. Inyo Sierra Nevada Mtns., Onion Valley, Independence Creek Comment
  UCR19274  Pinus monophylla John C. Roos 1965-7-10 s.n. Inyo Northern Mojave Desert, Death Valley National Monument. Trail to Telescope Peak near Mahogany Flat 2500 Comment
  UCR19279  Oryzopsis micrantha John C. Roos, L. Roos 1952-7-28 5840 Inyo White Mtns, Wyman Canyon 2683 Comment
  UCR19281  Oryzopsis webberi John C. Roos 1952-7-25 5819 Inyo Northern Mojave Desert, White Mountains, between Westgard Pass and Reed Flat 2439 Comment
  UCR20324  Isocoma acradenia var. acradenia John C. Roos, Lucille Roos 1954-9-15 6242 Inyo Northern Mojave Desert, Shoshone, near airstrip 488 Comment
  UCR20395  Brickellia longifolia John C. Roos 1956-9-30 6603 Inyo Northern Mojave Desert, Panamint Mtns, Wildrose Cyn, at Wildrose [Ranger] Station Comment
  UCR20432  Aquilegia formosa John C. Roos 1947-7-12 2899 Inyo Panamint Mtns., Wildrose Canyon. Near a spring at Thorndikes Camp 2264 Comment
  UCR20460  Swallenia alexandrae John C. Roos, L. Roos 1954-6-28 6175 Inyo Northern Mojave Desert, N slope of sand dunes at SE end of Eureka Valley 930 Comment
  UCR20610  Sitanion longifolium John C. Roos 1947-7-13 2890 Inyo Panamint Mtns, Near Arcane Meadows, south of Baldy Peak 3018 Comment
  UCR20623  Stipa pinetorum John C. Roos 1947-7-11 2901 Inyo Northern Mojave Desert, Panamint Mtns, Mahogany Flats 2470 Comment
  UCR23261  Ericameria cooperi John C. Roos 1947-4-20 3517 Inyo Northern Mojave Desert, Panamint Mtns: Emigrant Pass 1555 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
  UCR23435  Stanleya pinnata var. inyoensis John C. Roos 1955-5-13 6353 Inyo Northern Mojave Desert, SE end of Eureka Valley 945 Comment
  UCR23498  Oenothera deltoides subsp. eurekensis John C. Roos, P. A. Munz 1955-4-9 6318 Inyo Northeastern Mojave Desert, Eureka Valley 945 Comment
  UCR23511  Cercocarpus intricatus John C. Roos 1955-6-19 6452 Inyo Summit Ridge of Last Chance Mtns 2 mi west of Last Chance Spring. 2561 Comment
  UCR23514  Potentilla biennis John C. Roos 1937-8-5 1025 Inyo White Mtns., White Mtns. Comment
  UCR23527  Camissonia pusilla John C. Roos 1955-5-15 6363 Inyo Northern Mojave Desert, Last Chance Mtns., 0.5 mi. west of Willow Spring 1768 Comment
  UCR23583  Cryptantha racemosa John C. Roos 1955-4-6 6289 Inyo Northern Mojave Desert, Saline Valley, mouth of Craig Canyon, E base of Inyo Mtns. 534 Comment
  UCR23633  Caulanthus glaucus John C. Roos 1955-5-16 6384 Inyo Inyo Mountains, narrow canyon 1.5 mi SW of Loretto Mine along Loretto Rd. 1677 Comment
  UCR23691  Brickellia californica John C. Roos 1956-8-29 6594 Inyo Northern Mojave Desert, Panamint Mountains, head of Death Valley Canyon 2300 Comment
  UCR23711  Arenaria macradenia var. parishiorum John C. Roos 1955-5-13 6355 Inyo Northern Mojave Desert, west base of Last Chance Mtns, east of Eureka Valley sand dunes 1223 Comment
  UCR23719  Brickellia microphylla John C. Roos 1947-9-18 2793 Inyo Northern Mojave Desert, Panamint Mtns, Charcoal Kilns 2115 Comment
  UCR23748  Arceuthobium campylopodum John C. Roos 1937-8-5 1028 Inyo White Mtns., White Mtns. Comment
  UCR23772  Dicoria canescens subsp. clarkiae John C. Roos, L. Roos 1954-11-24 6266 Inyo Northern Mojave Desert, SE end of Eureka Valley 930 Comment
  UCR23782  Ericameria parryi var. aspera John C. Roos, Alfred R. Roos 1955-8-26 6551 Inyo Inyo Mountains, [Inyo National Forest], main ridge between Squaw Peak and Waucoba Mountain 2957 Comment
  UCR23783  Ericameria parryi John C. Roos 1961-9-2 s.n. Inyo Northern Mojave Desert, 3 mi east of Badger Flat, Inyo Mountains 3110 Comment
  UCR23833  Cirsium arizonicum var. arizonicum John C. Roos 1937-8-8 1016 Inyo Sierra Nevada Mtns., Lone Pine Canyon below Mt. Whitney 3506 Comment
  UCR23907  Astragalus mohavensis John C. Roos 1955-5-13 6329 Inyo Northern Mojave Desert, west base of Last Chance Mtns, east of Eureka Valley sand dunes 1159 Comment
  UCR23979  Astragalus lentiginosus John C. Roos 1958-7-5 s.n. Inyo Northern Mojave Desert, Inyo Mountains, near Badger Flats 2683 Comment
  UCR24062  Muhlenbergia porteri John C. Roos 1955-5-13 6341 Inyo Northern Mojave Desert, west base of Last Chance Mountains, east of Eureka Valley sand dunes 1280 Comment
  UCR24063  Dichanthelium acuminatum subsp. fasciculatum John C. Roos 1955-7-23 6511 Inyo Northern Mojave Desert, mouth of Beveridge Canyon, east base of Mtns, Saline Valley 610 Comment
  UCR24088  Chenopodium fremontii John C. Roos 1955-7-23 6515 Inyo Inyo Mtns., 1.5 mi south of Soldier Flat 1982 Comment
  UCR24103  Allium validum John C. Roos 1965-8-9 s.n. Inyo Sierra Nevada Mountains, near Little Pothole Lake, above Onion Valley [Kearsarge Pass area] 3061 Comment
  UCR24149  Lilium kelleyanum John C. Roos 1965-8-9 s.n. Inyo Sierra Nevada Mountains, near Little Pothole Lake, above Onion Valley [Kearsarge Pass area] 3061 Comment
  UCR24150  Tofieldia glutinosa subsp. occidentalis John C. Roos 1965-8-9 s.n. Inyo Sierra Nevada Mountains, near Little Pothole Lake, above Onion Valley [Kearsarge Pass area] 3061 Comment
  UCR24204  Triglochin concinna var. debilis John C. Roos 1965-9-18 s.n. Inyo Owens Valley, west side of Owens Lake 1098 Comment
  UCR24215  Eriogonum umbellatum subsp. aridum John C. Roos 1955-6-19 6432 Inyo 1 mi SE of Willow Spring, Last Chance Mountains 1951 Comment
  UCR24307  Stipa pinetorum John C. Roos, A. R. Roos 1954-6-12 6136 Inyo Northern Mojave Desert, Panamint Mtns., north face Wildrose Peak at head of Trail Canyon 2683 Comment
  UCR24312  Nitrophila mohavensis John C. Roos 1954-7-18 6194 Inyo Northern Mojave Desert, Death Valley region, Amargosa Desert 3 mi. NE of Death Valley Junction, along Ash Meadows road 625 Comment
  UCR24313  Eriogonum rixfordii John C. Roos 1965-9-18 s.n. Inyo Northern Mojave Desert, Panamint Mountains, Wildrose Canyon Comment
  UCR24345  Artemisia nova John C. Roos 1947-9-19 2795 Inyo Northern Mojave Desert, Panamint Mountains, NE ridge of Telescope Peak 3201 Comment
  UCR24351  Stipa arida John C. Roos 1955-5-13 6346 Inyo Northern Mojave Desert, west base of Last Chance Mountains, east of Eureka Valley sand dunes 1280 Comment
  UCR24371  Stipa comata John C. Roos 1955-6-19 6453 Inyo Willow Spring, Last Chance Mountains 1829 Comment
  UCR24379  Tridens muticus John C. Roos 1955-5-13 6339 Inyo Northern Mojave Desert, west base of Last Chance Mountains, east of Eureka Valley sand dunes 1280 Comment
  UCR24438  Swallenia alexandrae John C. Roos 1955-5-13 6352 Inyo Northern Mojave Desert, sand dunes SE end of Eureka Valley 945 Comment
  UCR25323  Eriogonum brachypodum John C. Roos 1965-7-10 s.n. Inyo Northern Mojave Desert, south slope trail to Telescope Peak, Panamint Mountains 2744 Comment
  UCR25397  Pellaea breweri John C. Roos 1937-8-8 978 Inyo Sierra Nevada Mtns., Lone Pine Canyon below Mt. Whitney 3506 Comment
  UCR25617  Muhlenbergia richardsonis John C. Roos, L. Roos 1951-8-9 5123 Inyo White Mtns, east side of Reed Flat 3049 Comment
  UCR25715  Dicoria canescens subsp. clarkiae John C. Roos, P. A. Munz 1955-4-9 6317 Inyo Northeastern Mojave Desert, Eureka Valley 945 Comment
  UCR25722  Eriogonum deflexum var. deflexum John C. Roos, L. Roos 1952-6-28 6172 Inyo Northern Mojave Desert, SE end of Eureka Valley 915 Comment
  UCR25797  Gentiana amarella John C. Roos 1937-8-8 977 Inyo Sierra Nevada Mtns., Lone Pine Canyon below Mt. Whitney 3506 Comment
  UCR25955  Astragalus nuttallianus John C. Roos, L. Roos 1954-5-9 6114 Inyo Northern Mojave Desert, Death Valley region, Panamint Mountains, Wildrose Canyon 1951 Comment
  UCR25961  Cryptantha utahensis John C. Roos 1947-4-18 3474 Inyo Northern Mojave Desert, Death Valley National Monument [Park], Black Mtns., Dante's View 1646 Comment
  UCR25969  Lappula occidentalis John C. Roos 1965-7-11 s.n. Inyo Northern Mojave Desert, Panamint Mtns: Wildrose Canyon at and below the Charcoal Kilns 2134 Comment
  UCR25975  Sambucus racemosa John C. Roos 1947-7-11 2846 Inyo Northern Mojave Desert, Panamint Mtns, upper Wildrose Canyon 2409 Comment
  UCR26084  Chaenactis carphoclinia var. carphoclinia John C. Roos 1947-4-19 3498 Inyo Northern Mojave Desert, Golden Canyon, Death Valley 76 Comment
  UCR26127  Ivesia pygmaea John C. Roos 1937-8-8 538 Inyo Sierra Nevada Mtns., Lone Pine Canyon Comment
  UCR26148  Mentzelia nitens John C. Roos 1947-4-19 3467 Inyo Northern Mojave Desert, Death Valley National Monument [Park], canyon east of Dantes View 1646 Comment
  UCR26207  Rosa woodsii John C. Roos 1948-7-4 3912 Inyo Panamint Mtns., Thorndike's Spring 2165 Comment
  UCR26271  Phacelia pediculoides John C. Roos, L. Roos 1954-5-6 6073 Inyo Northern Mojave Desert, Amargosa River bottom, 4 mi. north of Shoshone 518 Comment
  UCR26274  Eriastrum wilcoxii John C. Roos, A. R. Roos 1954-6-12 6135 Inyo Northern Mojave Desert, Panamint Mtns., north face Wildrose Peak at head of Trail Canyon 2683 Comment
  UCR26310  Sagittaria latifolia John C. Roos 1937-8-4 1952 Inyo Owens River near Lone Pine 1112 Comment
  UCR30495  Agoseris glauca John C. Roos, A. R. Roos 1953-8-11 6003 Inyo Northern Mojave/Great Basin Desert, north slope of the Inyo Mtns: 3 mi east of Blue Bell Mine on the trail to Side Hill Spring 3110 Comment
  UCR30507  Cryptantha confertiflora John C. Roos, A. R. Roos 1953-8-11 5994 Inyo Northern Mojave/Great Basin Desert, Inyo Mtns: 2-2.5 mi east of Blue Bell Mine 2866 Comment
  UCR30574  Cirsium mohavense John C. Roos 1949-6-28 4528 Inyo Northern Mojave Desert, Tecopa, Amargosa River Valley 427 Comment
  UCR30599  Atriplex polycarpa 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
  UCR30605  Atriplex lentiformis John C. Roos, A. R. Roos 1950-8-7 s.n. Inyo Northern Mojave Desert, Tecopa in Amargosa River Valley 427 Comment
  UCR34460  Tetradymia spinosa var. longispina John C. Roos 1947-4-19 3479 Inyo Northern Mojave Desert, Death Valley National Monument [Park], canyon east of Dantes View 1646 Comment
  UCSB37370  Cordylanthus kingii subsp. helleri Roos, John 1958-8-30 Inyo Badger Flat, Inyo Mtns. Comment
  UCSB42201  Prosopis pubescens Roos, John 1965-7-11 Inyo Warm Springs, Furnace Creek, Death Valley Comment
  UCSB42273  Erigeron divergens Roos, John 1955-4-7 Inyo Saline Valley, mouth of Hunter Canyon 350 Comment
  UCSB45562  Cirsium arizonicum Roos, John; Roos, Alfred 1953-8-9 Inyo Tamarack Canyon, Inyo Mts. 2743 Comment
  UCSB45574  Achnatherum occidentale subsp. californicum Roos, John 1967-10-7 Inyo Big Pine Creek below Palisade Glacier. 2895 Comment
  CAS-BOT-BC215319  Lupinus excubitus var. excubitus John Roos; Lucille Roos 1947-7-13 2862 Inyo Baldy Peak, Panamint Mountains 2621 Comment
  CAS-BOT-BC241749  Eriogonum brachypodum J. C. Roos 1965-7-10 s.n. Inyo South slope trail to Telescope Peak, Panamint Mtns. 2743 Comment
  CAS-BOT-BC254163  Eriogonum baileyi var. baileyi J. C. Roos; A. R. Roos 1954-8-15 6228 Inyo Whipoorwill (or Soldier) Flat at east side of Waucoba Mtn., Inyo Mts. 2194 Comment
  CAS-BOT-BC258640  Eriogonum ovalifolium var. nivale John Roos; Lucille Roos 1954-6-26 6158 Inyo Badget Flat, Inyo Mts. 2621 Comment
  CAS-BOT-BC294365  Ericameria paniculata John Roos; Lucille Roos 1947-9-20 2812 Inyo Emigrant Wash near Emigrant Spring, Panamint Mts. 1249 Comment
  CAS-BOT-BC308525  Hazardia brickellioides J. C. Roos; A. R. Roos 1955-8-23 6530 Inyo West base Last Chance Mtns. east of Eurka Valley sand dunes 1219 Comment
  CAS-BOT-BC314406  Hecastocleis J. C. Roos; P. A. Munz 1955-4-8 6308 Inyo Last Chance Mtns. east of the Eureka Valley sand dunes 1310 Comment
  CAS-BOT-BC339938  Sphaeromeria cana John Roos; Lucille Roos 1947-9-19 2797 Inyo Rocky summit of Telescope Peak, Panamint Mts. 3365 Comment
  CAS-BOT-BC444427  Lewisia rediviva var. minor John Roos; Lucille Roos 1950-7-27 5825 Inyo West side Reed Flat, White Mts. 3078 Comment
  CAS-BOT-BC451812  Triglochin maritima John Roos; Lucille Roos 1954-5-7 6078 Inyo Amargosa Desert 3 miles NE of Death Valley Junction along Ash Meadows road. 624 Comment
  CAS-BOT-BC60736  Physaria kingii subsp. latifolia John Roos; Lucille Roos 1947-7-12 2835 Inyo Panamint Mountains. Wild Rose Canyon. 2346 Comment
  CAS-BOT-BC93726  Artemisia ludoviciana subsp. albula John Roos; Lucille Roos 1947-9-20 2814 Inyo Emigrant Wash near Emigrant Spring, Panamint Mts. 1249 Comment
  CLARK-A1528-1187  Atriplex phyllostegia John C. Roos 1954-5-6 6074 Inyo Amargosa River 518 Comment
  CLARK-A1528-1585  Artemisia nova John C. Roos, Lucille Roos 1947-9-20 2806 Inyo Panamint Mountains 2377 Comment
  CLARK-A1528-1587  Artemisia nova John C. Roos 1947-9-19 2796 Inyo Panamint Mountains 3352 Comment
  CLARK-A1528-1683  Brickellia multiflora John C. Roos 1947-9-18 2792 Inyo Panamint Mountains 1066 Comment
  CLARK-A1528-1684  Brickellia multiflora John C. Roos 1961-10-22 Inyo Inyo Mountains Comment
  CLARK-A1528-1686  Brickellia multiflora John C. Roos, Lucille Roos 1947-9-20 2813 Inyo Panamint Range 1249 Comment
  CLARK-A1528-1901  Haplopappus paniculatus John C. Roos, Lucille Roos 1947-9-20 2815 Inyo Olancha 1097 Comment
  CLARK-A1528-1940  Helianthus jaegeri John C. Roos 1950-8-7 4928 Inyo Tecopa 426 Comment
  CLARK-A1528-2066  Psathyrotes annua John C. Roos 1947-7-15 2827 Inyo Darwin Mesa 1523 Comment
  CLARK-A1528-2108  Stephanomeria pauciflora var. myrioclada John C. Roos, Alfred R. Roos 1954-8-13 6207 Inyo Eureka Valley 426 Comment
  CLARK-A1528-2159  Haplopappus paniculatus John C. Roos 1949-9-3 3567 Inyo Tecopa 426 Comment
  CLARK-A1528-2389  Oxystylis lutea John C. Roos 1965-7-11 Inyo Eagle Mountain 609 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-A1528-2574  Chenopodium rubrum John C. Roos 1954-11-23 6258 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-A1528-2729  Astragalus calycosus John C. Roos 1952-7-26 5822 Inyo White Mountains 3047 Comment
  CLARK-A1528-2730  Astragalus calycosus John C. Roos 1951-8-11 5178 Inyo White Mountains 3444 Comment
  CLARK-A1528-2744  Astragalus gilmanii John C. Roos 1948-7-4 3898 Inyo Panamint Mountains 2468 Comment
  CLARK-A1528-2974  Eucrypta micrantha John C. Roos 1955-4-6 6296 Inyo Saline Valley Comment
  CLARK-A1528-3015  Phacelia perityloides John C. Roos 1955-4-6 6287 Inyo Inyo Mountains 609 Comment
  CLARK-A1528-3017  Phacelia rotundifolia John C. Roos, Lucille Roos 1952-7-31 5878 Inyo White Mountains 2438 Comment
  CLARK-A1528-3113  Salvia funerea John C. Roos, Lucille Roos 1954-3-27 6057 Inyo Grapevine Mountains 914 Comment
  CLARK-A1528-3559  Pinus monophylla John C. Roos 1947-7-14 2817 Inyo Panamint Mountains 2468 Comment
  CLARK-A1528-3984  Chamaebatiaria millefolium John C. Roos 1965-8-9 Inyo Independence Creek 2682 Comment
  CLARK-A1528-4009  Cowania mexicana var. stansburyana John C. Roos 1965-7-11 Inyo Panamint Range 2468 Comment
  CLARK-A1528-4869  Oxystylis lutea John C. Roos 1949-6-28 4526 Inyo Tecopa Comment
  CLARK-A1528-4966  Oxystylis lutea John C. Roos 1938-4-18 1635 Inyo 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-A1528-5412  Chenopodium leptophyllum John C. Roos 1954-6-26 6161 Inyo Inyo Mountains 2621 Comment
  CLARK-A1528-5511  Brickellia microphylla John C. Roos, Lucille Roos 1954-11-24 6265 Inyo Inyo Mountains 1676 Comment
  CLARK-A1528-5603  Haplopappus macronema John C. Roos 1959-8-20 Inyo White Mountains 3047 Comment
  CLARK-A1528-5604  Haplopappus macronema John C. Roos 1959-8-20 Inyo White Mountains 3047 Comment
  LA102223  Mentzelia albicaulis J. C. Roos; 1947-4-18 3455 Inyo Shoshone. 457 Comment
  NY851462  Camissonia heterochroma J. C. Roos 1954-8-14 6213 Inyo 0.4 mile north of The Narrows, Marble Canyon, Inyo Mountains 2316 Comment
  POM251777  Solanum americanum J. C. Roos 1938-4-15 18 Inyo on stony bank, Darwin Fall. Comment
  POM261209  Oenothera cespitosa subsp. marginata J. C. Roos 1941-8-17 25 Inyo Panamint Mountains: 3049 Comment
  POM265655  Cleomella plocasperma J. C. Roos 1937-8-6 1960 Inyo Big Pine. Comment
  POM265715  Endolepis covillei J. C. Roos 1937-8-3 2161 Inyo Little Lake, Owens Valley. Comment
  POM266315  Hulsea algida J. C. Roos 1937-8-8 1019 Inyo Slope of Mt. Whitney. Comment
  POM274215  Chrysothamnus nauseosus subsp. consimilis J. C. Roos 1947-9-19 2804 Inyo E face Baldy Peak, Panamint Mts Comment
  RSA0008801  Astragalus lentiginosus var. micans J. C. Roos 1955-5-13 6354 Inyo Southeast end of Eureka Valley, East of Inyo Mts. 930 Comment
  RSA0051246  Galium hilendiae subsp. carneum John Roos, Lucille Roos 1947-7-14 2855 Inyo North slope Baldy Peak, Panamint Mts. 2560 Comment
  RSA0057817  Philadelphus microphyllus var. stramineus J. C. Roos, L. Roos 1952-7-28 5843 Inyo Wyman Canyon, White Mountains. 2683 Comment
  RSA0062965  Heuchera rubescens var. alpicola J. C. Roos 1947-7-14 2850 Inyo North slope Baldy Peak, Panamint Mts. 2652 Comment
  RSA0097025  Lappula redowskii John C. Roos 1955-6-17 6408 Inyo 2 miles NE of Willow Spring, Last Chance Mountains. 2012 Comment
  RSA0103491  Eriastrum wilcoxii J. C. Roos 1955-7-23 6508 Inyo Soldier Flat at east base Waucoba Mountain, Inyo Mountains. 2195 Comment
  RSA0120060  Eriastrum eremicum subsp. eremicum J. C. Roos 1947-7-15 2825 Inyo Darwin Mesa. Comment
  RSA104839  Dicoria clarkiae J. C. Roos 1955-5-13 6359 Inyo SE end of Eureka Valley. 945 Comment
  RSA105010  Galium multiflorum J. C. Roos 1955-5-16 6385 Inyo narrow canyon along Loretto road 1.5 miles southwest of Loretto Mine 1677 Comment
  RSA105014  Stanleya pinnata J. C. Roos 1955-5-16 6391 Inyo Waucoba road, 6 miles east of Big Pine, west side Inyo Mtns. 1494 Comment
  RSA155704  Penstemon rostriflorus J. C. Roos 1955-7-21 6493 Inyo Last Chance Mountains 1miles south of Willow Spring 2073 Comment
  RSA155738  Lotus oblongifolius J. C. Roos, A. R. Roos 1955-8-28 6566 Inyo On the West side of Owens Lake, 3 miles North of Olancha 1091 Comment
  RSA155750  Stephanomeria exigua subsp. exigua J. C. Roos, E. C. Jaeger 1955-7-21 6477 Inyo Last Chance Mountains, 2 miles NE of Willow Spring. 2012 Comment
  RSA155759  X Stiporyzopsis bloomeri J. C. Roos, L. Roos 1955-8-26 6559 Inyo Waucoba Mt., Inyo Mts. 3049 Comment
  RSA157082  Townsendia scapigera J. C. Roos 1955-6-19 6436 Inyo One mile south of Willow Springs, Last Chance Mountains 2287 Comment
  RSA158116  Eriogonum kearneyi subsp. monoense J. C. Roos, E. C. Jaeger 1955-7-22 6503 Inyo Solidier Flat, east base Waucoba Mountain, Inyo Mountains. 2195 Comment
  RSA47548  Helianthus annuus subsp. jaegeri J. C. Roos, R. Weatherby 1949-9-3 3568 Inyo Tecopa. Ted Chamberlin Rancho Los Potreros, Los Olivos, off Foxen Canyon road. 427 Comment
  RSA658867  Boerhavia annulata J. C. Roos 1965-7-9 s.n. Inyo Wildrose Canyon, Panamint Mts. Comment
  RSA662544  Dicoria canescens subsp. clarkiae J. C. Roos, P. A. Munz 1955-4-9 6317 Inyo Eureka Valley. Comment
  RSA664188  Chenopodium rubrum J. C. Roos 1965-9-18 s.n. Inyo Inyo Mountains; Darwin Mesa. Comment
  RSA71721  Eriogonum caespitosum J. C. Roos 1952-7-27 5827 Inyo West rim of Reed Flat, White Mtns. 3110 Comment
  RSA71729  Halimolobos jaegeri J. C. Roos 1952-7-28 5844 Inyo White Mountains:Wyman Canyon 2683 Comment
  RSA71750  Castilleja linariifolia var. omnipubescens J. C. Roos, Lucille Roos 1952-7-27 5836 Inyo Common on open brushy slopes with Crepis intermedia, Artemisia nova, etc. Reed Flat, White Mts. 3140 Comment
  RSA72079  Chamaesyce fendleri J. C. Roos, L. Roos 1951-8-12 5193 Inyo Westgard Pass, White Mountains. 2195 Comment
  RSA74561  Townsendia scapigera J. C. Roos 1951-8-9 5120 Inyo White Mountains: East side of Reed Flat. 3049 Comment
  RSA74604  Helianthus annuus subsp. jaegeri J. C. Roos, L. Roos 1951-8-12 5195 Inyo Lone Pine. 1143 Comment
  RSA79493  Stanleya elata J. C. Roos 1953-8-14 6030 Inyo Al Rose Canyon; Inyo Mts. 2134 Comment
  RSA90548  Boerhavia annulata J. C. Roos, L. Roos 1954-11-24 6261 Inyo Mouth of Beveridge Canyon, east base of Inyo Mts, Saline Valley Comment
  RSA92174  Cercocarpus intricatus J. C. Roos, L. Roos 1954-6-26 6157 Inyo Tamarack Canyon, Inyo Mountains 2744 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
  RSA92729  Cleome lutea J. C. Roos, L. Roos 1954-6-29 6189 Inyo The Narrows of Marble Canyon, Inyo Mountains 2210 Comment
  RSA92775  Adiantum capillus-veneris J. C. Roos, Lucille Roos 1954-11-25 6263 Inyo mouth of Beveridge Canyon at est base of Inyo Mountains, Saline Valley 609 Comment
  SD121373  Packera cana John Roos, L. Roos 1954-6-24 6147 Inyo Scattered on dry rocky exposed ridge 1 mile east northeast of Blue Bell Mine, Inyo Mountains. 2865 Comment
  SD52924  Gilia ophthalmoides J. C. Roos 1955-7-22 6501 Inyo Crest of Inyo Mountains at junction of Eureka Valley and Saline Valley roads. 2240 Comment
  SD52931  Cercocarpus intricatus J. C. Roos 1955-6-19 6452 Inyo Summit ridge of Last Chance Mountains, 2 miles west of Last Chance Spring. 2560 Comment
  SD52953  Cordylanthus kingii subsp. helleri John C. Roos, Alfrd R. Roos 1955-8-25 6548 Inyo Soldier Flat, east base Waucoba Mt., Inyo Mts. 2164 Comment
  UC1010183  Arenaria kingii var. glabrescens John and Lucille Roos 1951-8-8 5118 Inyo ridge 1 mi. s Reed Flat; White Mts. 2956 Comment
  UC1010207  Phlox stansburyi John and Lucille Roos 1952-7-28 5838 Inyo Reed Flat White Mts. 2590 Comment
  UCSB37804  Artemisia ludoviciana Roos, John 1961-9-2 Inyo In a rocky moist canyon below Side Hill Spring, Inyo Mtns. 2804 Comment
  UCSB42129  Mimulus bigelovii var. cuspidatus Roos, John 1965-7-10 Inyo Above Arcane Meadow; on the south slope of Telescope Peak; Panamint Range Comment
  UCSB45535  Eriogonum latens Roos, John 1962-8-25 Inyo West ridge from Waucoba Mtn; Inyo Mountains Comment
  UCSB45548  Eriogonum brachypodum Roos, John 1965-7-10 Inyo South slope trail to Telescope Peak, Panamint Mtns 2743 Comment
  CLARK-A1528-2015  Monolopia lanceolata John C. Roos 1937-3-26 2477 Kern Comment
  CLARK-A1528-3615  Eriogonum angulosum John C. Roos 1937-8-10 1813 Kern Bodfish Comment
  CLARK-A1528-3697  Eriogonum davidsonii John C. Roos 1937-8-10 1815 Kern Walker Pass Comment
  RSA155690  Larrea tridentata J. C. Roos 1955-6-21 6472 Kern 4 miles NW of Searles Station, Mojave Desert. 1067 Comment
  RSA155691  Senna armata J. C. Roos 1955-6-21 6471 Kern 4 miles NW of Searles Station, Mojave Desert. 1067 Comment
  UCR23714  Herniaria cinerea John C. Roos 1957-7-9 6653 Kern Tehachapi Mtns., Keene Comment
  UCR23981  Bromus trinii John C. Roos 1969-5-10 s.n. Kern Western Mojave Desert, Red Rock Canyon 793 Comment
  UCR24141  Calochortus striatus John C. Roos 1969-5-10 s.n. Kern Western Mojave Desert, Red Rock Canyon 793 Comment
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Oct 23 2014
  UCR24297  Plantago ovata Alfred R. Roos 1937-3-26 s.n. Kern San Joaquin Valley, 6 mi. east of Maricopa 213 Comment
  UCR24848  Festuca microstachys John C. Roos 1937-3-26 443 Kern East of Maricopa Comment
  UCR30619  Salicornia europaea John C. Roos 1950-7-24 4880 Kern Tehachapi Mtns., Monolith Dry Lake [= Proctor Lake] 1189 Comment
  UCR31677  Festuca pratensis John C. Roos 1950-7-24 4882 Kern Shafter, along edge of building 122 Comment
  UCSB46873  Calochortus striatus Roos, John 1969-5-10 Kern Red Rock Canyon Comment
  UCSB49867  Deinandra arida Roos, John 1969-5-10 Kern Red Rock Canyon Comment
  CLARK-A1528-2257  Plagiobothrys arizonicus John C. Roos 1937-3-25 1834 Kern Comment
  CLARK-A1528-2388  Isomeris arborea var. globosa John C. Roos 1937-3-26 1323 Kern Comment
  POM265633  Eriogonum nudum var. pubiflorum J. C. Roos 1937-8-10 1044 Kern Bodfish. Comment
  RSA0016964  Lupinus albicaulis subsp. wolfianus J. C. Roos 1937-8-10 2522 Kern Valley 12 miles north of Caliente. Comment
  RSA52771  Atriplex prostrata J. C. Roos, L. Roos 1950-7-24 4875 Kern Monolith Lake 1189 Comment
  POM262793  Ptelea baldwinii subsp. crenulata J. C. Roos 1939-4-22 287 Lake W shore of Clear Lake. Comment
  RSA44878  Helianthus bolanderi J. C. Roos 1948-8-31 3931 Lake Lakeport. Comment
  UCR20303  Lupinus luteolus John C. Roos 1948-8-31 3933 Lake North Coast Range, Lakeport Comment
  CAS-BOT-BC262697  Muhlenbergia californica John C. Roos 1951-7-30 5075 Los Angeles Big Rock Creek, north of Mt. Baden Powell, San Gabriel Mts. 1981 Comment
  CLARK-A1528-1146  Quercus lobata John C. Roos 1946-11-23 3157 Los Angeles Placerita Canyon 365 Comment
  CLARK-A1528-1298  Ribes malvaceum var. viridifolium John C. Roos 1943-3-20 2598 Los Angeles Santa Monica Mountains Comment
  CLARK-A1528-1410  Rhus integrifolia John C. Roos 1949-2-13 4083 Los Angeles Whittier 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-A1528-1807  Encelia californica John C. Roos 1946-10-12 3130 Los Angeles Los Angeles Comment
  CLARK-A1528-2356  Tropidocarpum gracile John C. Roos 1937-3-25 1335 Los Angeles Comment
  CLARK-A1528-2502  Atriplex rosea Alfred R. Roos 1948-8-21 Los Angeles Long Beach Comment
  CLARK-A1528-2547  Atriplex parryi John C. Roos 1947-7-21 Los Angeles Lancaster Comment
  CLARK-A1528-2583  Kochia americana John C. Roos 1947-7-21 Los Angeles Lancaster Comment
  CLARK-A1528-2722  Acacia melanoxylon John C. Roos 1943-8-5 Los Angeles Pomona Comment
  CLARK-A1528-2763  Astragalus trichopodus subsp. antisellii John C. Roos 1937-7-29 1245 Los Angeles Santa Monica Mountains Comment
  CLARK-A1528-3239  Sida leprosa var. hederacea John C. Roos 1942-9-5 1744 Los Angeles Westwood Village Comment
  CLARK-A1528-3325  Camissonia cheiranthifolia Alfred R. Roos 1956-5-22 Los Angeles 9 Comment
  CLARK-A1528-3327  Camissonia claviformis John C. Roos 1937-3-25 1324 Los Angeles Comment
  CLARK-A1528-3593  Dryopteris arguta John C. Roos 1942-3-21 1099 Los Angeles San Gabriel Mountains Comment
  CLARK-A1528-3622  Eriogonum cinereum John C. Roos 1942-9-26 1727 Los Angeles Santa Monica Comment
  CLARK-A1528-3913  Ceanothus megacarpus John C. Roos 1943-3-30 2599 Los Angeles Santa Monica Mountains Comment
  CLARK-A1528-4134  Ribes malvaceum var. viridifolium John C. Roos 1942-12-5 Los Angeles Santa Anita Canyon Comment
  CLARK-A1528-4776  Oryzopsis miliacea John C. Roos 1942-9-27 1734 Los Angeles Los Angeles Comment
  CLARK-A1528-4790  Paspalum dilatatum John C. Roos 1947-5-11 3605 Los Angeles Los Angeles Comment
  CLARK-A1528-4842  Polypogon semiverticillatus John C. Roos 1942-9-12 1718 Los Angeles Westwood Comment
  CLARK-A1528-4928  Chaenactis santolinoides John C. Roos 1937-5-31 2035 Los Angeles San Gabriel Mountains Comment
  CLARK-A1528-4929  Medicago lupulina John C. Roos 1937-5-31 2033 Los Angeles San Gabriel Mountains Comment
  CLARK-A1528-5004  Quercus agrifolia John C. Roos 1937-4-18 1363 Los Angeles Live Oak Canyon Comment
  CLARK-A1528-5107  Phacelia douglasii John C. Roos 1937-3-25 680 Los Angeles 914 Comment
  CLARK-A1528-5191  Ailanthus altissima Alfred R. Roos 1949-7-21 Los Angeles Los Angeles Comment
  CLARK-A1528-5247  Trifolium wormskioldii John C. Roos 1937-5-31 756 Los Angeles San Gabriel Mountains Comment
  CLARK-A1528-5499  Artemisia tridentata subsp. parishii John C. Roos 1949-12-24 4699 Los Angeles Comment
  CLARK-A1528-5591  Poa secunda John C. Roos, Lucille Roos 1951-5-27 5055 Los Angeles Antelope Valley 701 Comment
  CLARK-A1528-5600  Artemisia tridentata subsp. parishii John C. Roos 1949-11-27 4704 Los Angeles Antelope Valley 822 Comment
  CLARK-A1528-861  Mimulus bigelovii John C. Roos 1941-4-12 195 Los Angeles Palmdale Comment
  POM263069  Hoffmannseggia glauca J. C. Roos 1940-8-31 241 Los Angeles Monterey Park. Comment
  POM263184  Melica imperfecta J. C. Roos 1937-3-25 442 Los Angeles 12 miles west of Lancaster Comment
  POM265677  Ribes amarum J. C. Roos 1942-4-18 1085 Los Angeles E Fork of Santa Anita Canyon, San Gabriel Mts Comment
  POM266276  Bromus grandis J. C. Roos 1942-5-23 1060 Los Angeles Santa Anita Canyon, San Gabriel Mountains. Comment
  POM301598  Phacelia davidsonii J. C. Roos 1937-5-31 1540 Los Angeles near Jackson Lake, San Gabriel Mountains Comment
  POM302528  Ribes malvaceum var. viridifolium J. C. Roos 1943-3-20 2598 Los Angeles Sepulveda Blvd, Santa Monica Mts, Los Angeles Comment
  RSA0006712  Astragalus bicristatus J. C. Roos 1937-5-31 491 Los Angeles Big Pines. Comment
  RSA648068  Agrostis pallens J. C. Roos 1939-6-8 s.n. Los Angeles Canyon in hills N. of Burbank. Comment
Read comments
Feb 3 2011
  RSA648671  Melica stricta J. C. Roos 1937-5-31 611 Los Angeles Big Pines. Comment
  RSA658859  Phacelia cicutaria var. hispida J. C. Roos 1947-5-17 3627 Los Angeles Placerita Canyon east of Newhall. Comment
  UC1023388  Cyclospermum leptophyllum John C. Roos 1951-8-1 5079 Los Angeles Los Angeles; Overland, near Santa Monica Blvd 60 Comment
  UC1023432  Digitaria ciliaris J. C. and A. R. Roos 1950-9-16 4989 Los Angeles 1700 Westwood Blvd. Los Angeles 60 Comment
  UCR18756  Lepidium nitidum John C. Roos 1950-2-14 4706 Los Angeles Los Angeles, Echandia St. between Rinehart St. and Prospect Park 104 Comment
  UCR18945  Quercus lobata John C. Roos 1946-11-23 3157 Los Angeles Transverse Range, Placerita Canyon [in Santa Clarita] Comment
  UCR19007  Spergularia villosa John C. Roos 1950-4-1 4719 Los Angeles Los Angeles Basin Region, Los Angeles [West Los Angeles/ Westwood], hill just east of [Ralph Waldo] Emerson Junior High School [1650 Selby Ave.] 87 Comment
  UCR19173  Phacelia hubbyi John C. Roos 1947-5-4 3603 Los Angeles San Gabriel Valley, Kellogg Hill, in hills west of Pomona 305 Comment
  UCR23352  Adiantum jordanii John C. Roos 1942-4-18 1084 Los Angeles Transverse Range; San Gabriel Mtns., East Fork of Santa Anita Canyon Comment
  UCR23368  Pinus attenuata John C. Roos 1942-4-18 1049 Los Angeles San Gabriel Mtns, ridge c. 3 mi south of Charlton Flats, Angeles Crest Hwy Comment
  UCR23372  Pinus ponderosa John C. Roos 1947-5-31 3669 Los Angeles San Gabriel Mountains, Big Pines 2134 Comment
  UCR23519  Clarkia unguiculata John C. Roos 1942-6-6 989 Los Angeles Western Transverse Range, Placerita Canyon near Newhall 610 Comment
  UCR23573  Sarcodes sanguinea John C. Roos 1966-6-15 s.n. Los Angeles San Gabriel Mountains, North slope of Mt. Baden-Powell near Lamel Spring 2378 Comment
Read comments
Aug 18 2012
  UCR23608  Datisca glomerata John C. Roos 1942-6-6 986 Los Angeles Western Transverse Range, Placerita Canyon near Newhall 610 Comment
  UCR23616  Mentzelia laevicaulis John C. Roos 1942-9-12 1740 Los Angeles Monrovia 165 Comment
  UCR23699  Erodium moschatum John C. Roos 1943-3-7 2642 Los Angeles Santa Monica, near Sawtell Comment
  UCR23727  Cotula australis John C. Roos 1942-2-28 1004 Los Angeles San Gabriel Valley, Pomona, 737 East Phillips St. 250 Comment
  UCR23894  Melilotus albus John C. Roos 1942-9-26 1729 Los Angeles Westwood Village, Los Angeles 90 Comment
  UCR24015  Phalaris canariensis Alfred R. Roos 1958-5-21 s.n. Los Angeles Evans and Reeves Nursery, Brentwood, West Los Angeles Comment
  UCR24046  Eleusine indica John C. Roos 1942-10-1 1735 Los Angeles Los Angeles, North Boyle and Bridge Street Comment
  UCR24118  Atriplex lentiformis subsp. breweri John C. Roos 1942-9-12 1724 Los Angeles South Coast/Santa Monica Mtns., northwest of Santa Monica 30 Comment
  UCR24170  Soliva sessilis Alfred R. Roos 1958-5-16 s.n. Los Angeles City of Los Angeles, lawn of the Ambassador Hotel, [3400] Wilshire Blvd. 69 Comment
  UCR24175  Dudleya cymosa subsp. minor John C. Roos 1942-5-23 1062 Los Angeles San Gabriel Mtns., Near Chantry Flats 671 Comment
  UCR24288  Pterostegia drymarioides John C. Roos 1942-5-23 1067 Los Angeles Transverse Range; San Gabriel Mtns., Chantry Flats, Santa Anita Canyon Comment
  UCR24308  Meconella denticulata John C. Roos 1942-5-23 1069 Los Angeles San Gabriel Mtns., Santa Anita Canyon Comment
  UCR24340  Ribes divaricatum var. parishii John C. Roos, L. Roos 1950-7-15 4850 Los Angeles San Gabriel Valley, Whittier Narrows, San Gabriel River bed near Whittier 61 Comment
  UCR24421  Ribes californicum var. hesperium John C. Roos 1944-2-5 2765 Los Angeles Western Transverse Range; Santa Monica Mtns., Mandeville Canyon, West Los Angeles 350 Comment
  UCR24490  Penstemon heterophyllus John C. Roos 1942-6-6 984 Los Angeles Western Transverse Range, Placerita Canyon near Newhall 610 Comment
  UCR25127  Cyclospermum leptophyllum John C. Roos 1951-8-1 5079 Los Angeles Los Angeles, [near Westwood Village] Overland Ave. near Santa Monica Blvd. 61 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
  UCR25949  Lepidium pinnatifidum John C. Roos 1956-6-15 s.n. Los Angeles Santa Monica Blvd., along RR tracks between Westwood and Beverly Glen Blvds. 90 Comment
  UCR26254  Asclepias californica John C. Roos 1937-5-31 742 Los Angeles southern Mojave Desert, near Littlerock Comment
  UCSB37845  Poa secunda subsp. juncifolia Roos, John; Roos, Lucille 1951-5-27 Los Angeles Flats between Lancaster and Rosamond, Mojave Desert 701 Comment
  CAS-BOT-BC306297  Hedypnois cretica A. R. Roos 1954-5-17 s.n. Los Angeles Near North Kenmore and Oakdale Streets, Hollywood 91 Comment
  CLARK-A1528-1305  Erodium botrys John C. Roos 1943-3-27 2622 Los Angeles West Los Angeles 0 Comment
  CLARK-A1528-1544  Ambrosia trifida John C. Roos 1937-9-7 Los Angeles North Hollywood Comment
  CLARK-A1528-1713  Chrysothamnus nauseosus subsp. bernardinus John C. Roos 1941-10-4 863 Los Angeles San Gabriel Mountains Comment
  CLARK-A1528-2102  Soliva sessilis Alfred R. Roos 1958-5-16 Los Angeles Comment
  CLARK-A1528-2158  Haplopappus parishii John C. Roos 1941-10-4 864 Los Angeles San Gabriel Mountains 1219 Comment
  CLARK-A1528-2567  Chenopodium multifidum John C. Roos 1937-7-19 1159 Los Angeles Pasadena Comment
  CLARK-A1528-2878  Trifolium dubium Alfred R. Roos 1954-5-29 Los Angeles Los Angeles Comment
  CLARK-A1528-2910  Quercus wislizeni var. frutescens John C. Roos 1941-10-4 865 Los Angeles San Gabriel Mountains Comment
  CLARK-A1528-2958  Erodium moschatum John C. Roos 1943-3-7 2642 Los Angeles Santa Monica Comment
  CLARK-A1528-4868  Descurainia pinnata John C. Roos 1937-3-9 1391 Los Angeles Claremont Comment
  CLARK-A1528-4963  Lepidium nitidum John C. Roos 1950-2-14 4706 Los Angeles Comment
  CLARK-A1528-5618  Galinsoga parviflora John C. Roos 1947-7-16 3528 Los Angeles West Covina Comment
  CLARK-A1528-5627  Chrysanthemum coronarium Alfred R. Roos 1955-5-7 Los Angeles El Segundo Comment
  HSC78509  Hedypnois cretica A. R. Roos 1954-5-17 Los Angeles Hollywood, near North Kenmore & Oakdale Streets. 91 Comment
  POM265709  Chenopodium ambrosioides J. C. Roos 1942-9-16 1726 Los Angeles Alameda and Vernon Sts., Los Angeles. Comment
  POM265716  Atriplex lentiformis subsp. breweri J. C. Roos 1942-9-12 1724 Los Angeles Northwest of Santa Monica. Comment
  POM266300  Ambrosia acanthicarpa J. C. Roos 1942-9-19 1711 Los Angeles West Los Angeles. Comment
  POM266486  Azolla filiculoides J. C. Roos 1942-3-7 1009 Los Angeles Big Tujunga Canyon, west end of San Gabriel Mountains Comment
  RSA0076175  Orobanche bulbosa John C. Roos 1942-6-6 1065 Los Angeles Placerita Canyon, near Newhall. Comment
  RSA0104244  Kopsiopsis strobilacea John C. Roos 1937-7-17 375 Los Angeles Near Telegraph Peak, San Gabriel Mts. Comment
  RSA443398  Phalaris canariensis A. R. Roos 1958-5-21 s.n. Los Angeles Evans & Reeves Nursery, Brentwood, West Los Angeles Comment
  RSA85108  Medicago lupulina J. C. Roos 1952-4-30 5604 Los Angeles Edge of lawn, March Air Force Base 488 Comment
  UCD114528  Cardamine pensylvanica A. R. Roos 1958-6-12 s.n. Los Angeles Evans and Reeves Nursery. Brentwood, in west Los Angeles. Comment
  UCD115863  Lepidium pinnatifidum J. C. Roos 1956-6-15 s.n. Los Angeles Santa Monica Blvd. along railroad tracks between Westwood and Beverly Glen Blvds. Comment
  UCSB37381  Soliva sessilis Roos, Alfred 1958-5-16 Los Angeles Lawn of the Ambassador Hotel, Wilshire Blvd., Los Angeles Comment
  UCSB42121  Oenothera rosea Roos, A. 1958-6-17 Los Angeles Evans & Reeves Nursery; Brentwood; West Los Angeles Comment
  UCSB42209  Hedypnois cretica Roos, Alfred 1954-5-17 Los Angeles Near North Kenmore and Oakdale Streets, Hollywood Comment
  CLARK-A1528-5252  Stipa occidentalis John C. Roos 1942-7-1 1254 Mariposa Yosemite National Park 2285 Comment
  POM266338  Poa secunda J. C. Roos 1942-7-1 1270 Mariposa Between Clouds Rest and Half Dome, Yosemite National Park. 2287 Comment
  RSA78367  Leptosiphon montanus J. C. Roos, L. Roos 1951-5-26 5039 Mariposa Hills about 7 miles east of Mariposa. Comment
  UCR19040  Digitalis purpurea John C. Roos 1958-6-20 s.n. Mariposa Sierra Nevada Mtns., Mariposa Grove near Yosemite Park [location may be in error] Comment
  UCR23409  Acer glabrum John C. Roos 1942-6-24 1269 Mariposa Sierra Nevada Mtns., Yosemite National Park, west of Glacier Point Comment
  UCR23891  Danthonia unispicata John C. Roos 1942-6-29 1258 Mariposa Sierra Nevada Mtns., Yosemite National Park, north of North Dome 2439 Comment
  UCR25168  Aira caryophyllea John C. Roos 1951-5-26 5038 Mariposa Sierra Nevada Mtns, hills about 7 miles east of Mariposa 1037 Comment
  UCR25192  Castilleja lineariloba John C. Roos 1951-5-26 5037 Mariposa Sierra Nevada Mtns, hills about 7 miles east of Mariposa 1037 Comment
  UCR25330  Phlox hoodii John C. Roos 1942-6-25 1265 Mariposa Sierra Nevada Mtns., Yosemite National Park, top of Half Dome 2683 Comment
  CLARK-A1528-2268  Vancouveria planipetala John C. Roos 1958-6-20 Mariposa Yosemite National Park Comment
  CLARK-A1528-2664  Calocedrus decurrens John C. Roos 1942-12-25 2589 Mariposa Sierra National Forest 1036-1219 Comment
  POM266345  Quercus X morehus J. C. Roos 1942-12-26 2590 Mariposa Oak Belt, Mariposa. 915 Comment
  RSA648016  Aesculus californica Roos 1958-6-20 s.n. Mariposa Paulson Ranch-Mariposa. Comment
  CLARK-A1528-2085  Senecio jacobaea John C. Roos 1957-7-1 6625 Mendocino Fort Bragg Comment
  CLARK-A1528-4529  Briza maxima John C. Roos 1957-7-2 6636 Mendocino Point Arena Comment
  UCR23620  Satureja douglasii John C. Roos 1957-7-1 6627 Mendocino Albion 6 Comment
  UCR25315  Deschampsia cespitosa subsp. holciformis John C. Roos 1957-7-2 6638 Mendocino Point Arena Lighthouse, on the coast 15 Comment
  CAS-BOT-BC143330  Potentilla pensylvanica John Roos; Lucille Roos 1952-7-30 5875 Mono Crooked Creek, White Mts. 3048 Comment
  CAS-BOT-BC317013  Packera multilobata John C. Roos; L. Roos 1951-8-8 5101 Mono White Mts., Big Prospector Meadow 3200 Comment
  CAS-BOT-BC332948  Senecio spartioides John Roos; Lucille Roos 1951-8-8 5102 Mono Big Prospector Meadow at head of Crooked Creek, Whtie Mountains 3169 Comment
  CAS-BOT-BC41884  Draba breweri John Roos; Lucille Roos 1951-8-10 5136 Mono White Mountains. McAfee Meadow. 3657 Comment
  CLARK-A1528-1490  Cystopteris fragilis John C. Roos, Lucille Roos 1952-7-30 5871 Mono White Mountains 3047 Comment
  CLARK-A1528-1597  Artemisia tridentata John C. Roos 1960-7-4 Mono White Mountains Comment
  CLARK-A1528-1608  Aster fremontii John C. Roos, Lucille Roos 1952-7-30 5863 Mono White Mountains 2834 Comment
  CLARK-A1528-2444  Arenaria kingii subsp. compacta John C. Roos 1951-8-11 5179 Mono White Mountains 3474 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-A1528-3800  Rumex paucifolius John C. Roos, Lucille Roos 1951-8-10 5138 Mono White Mountains 3992 Comment
  CLARK-A1528-4070  Populus tremuloides John C. Roos 1948-9-7 Mono Sierra Nevada Comment
  CLARK-A1528-4080  Selaginella watsonii John C. Roos, Lucille Roos 1951-8-10 5147 Mono White Mountain 4297 Comment
  CLARK-A1528-4320  Scrophularia lanceolata John C. Roos, Lucille Roos 1952-7-30 5860 Mono White Mountains 2743 Comment
  CLARK-A1528-4665  Festuca brachyphylla John C. Roos, Lucille Roos 1951-8-10 5149 Mono White Mountains 4266 Comment
  CLARK-A1528-4824  Poa lettermanii John C. Roos, Lucille Roos 1951-8-10 5149 a Mono White Mountains 4266 Comment
  CLARK-A1528-4832  Poa rupicola John C. Roos, Lucille Roos 1951-8-10 5158 Mono White Mountains 3962 Comment
  CLARK-A1528-5333  Androsace septentrionalis subsp. subumbellata John C. Roos, Lucille Roos 1951-8-10 5137 Mono White Mountains 3657 Comment
  HSC78523  Tetradymia spinosa J. C. Roos 1960-9-12 Mono N slope of Mono Lake Comment
  NY497447  Lewisia pygmaea J. C. Roos 1951-8-10 5153 Mono Flats 1 mile southeast of White Mountain Peak, White Mountains 4023.4 Comment
  RSA106500  Oxytropis parryi J. C. Roos, L. Roos 1951-8-10 5160 Mono 1 mile north of Sheep Mountain. 3628 Comment
  RSA45498  Ageratina occidentalis J. C. Roos, L. Roos 1948-9-7 3999 Mono Tioga Pass 2744 Comment
  RSA71375  Erigeron vagus J. C. Roos, L. Roos 1951-8-10 5146 Mono NE face White Mt. Peak, White Mountains 4299 Comment
  RSA71385  Koeleria macrantha L. Roos 1951-8-10 5157 Mono 1 mile SE of White Mtn. Peak, White Mts. 3963 Comment
  RSA71390  Solidago multiradiata J. C. Roos, Lucille Roos 1951-8-10 5162 Mono Northeast face of Sheep Mountain, White Mountains. 3506 Comment
  RSA71395  Eriogonum cernuum var. cernuum J. C. Roos, L. Roos 1951-8-11 5167 Mono White Mountains: NW side Big Prospector Meadow 3262 Comment
  RSA71407  Erysimum capitatum J. C. Roos, L. Roos 1951-8-11 5180 Mono NW end Big Prospector Meadow, White Mtns. 3262 Comment
  RSA71678  Antennaria pulchella J. C. Roos, L. Roos 1951-8-10 5129 Mono 1.5 miles N of Piute Mts, White Mts. 3567 Comment
  RSA71688  Ivesia lycopodioides subsp. scandularis J. C. Roos, L. Roos 1951-8-10 5139 Mono Saddle 1 mile SE of White Mountain Peak. 3963 Comment
  RSA71697  Koeleria macrantha J. C. Roos, L. Roos 1952-7-30 5869 Mono Crooked Creek, White Mts. 3049 Comment
  RSA71703  Potentilla pensylvanica J. C. Roos, L. Roos 1952-7-30 5875 Mono Crooked Creek, White mountains 3079 Comment
  RSA71790  Penstemon heterodoxus subsp. heterodoxus J. C. Roos, L. Roos 1951-8-8 5096 Mono Big Prospector Meadow, White Mountains. 3201 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
  UCR19119  Smilacina stellata John C. Roos 1960-7-4 s.n. Mono White Mtns, Crooked Creek 3293 Comment
  UCR24847  Eriogonum spergulinum John C. Roos 1948-9-7 3989 Mono Eastern Sierra Nevada Mtns., Crestview 2326 Comment
  UCR26074  Tetradymia spinosa John C. Roos 1960-9-12 s.n. Mono N slope of Mono Lake Comment
  UCR26315  Botrychium simplex John C. Roos 1960-7-11 s.n. Mono White Mountains, Crooked Creek. 2888 Comment
  UCR31646  Ericameria bloomeri John C. Roos 1948-9-7 3990 Mono Eastern Sierra Nevada Mtns., Crestview 2326 Comment
  CLARK-A1528-2044  Cirsium andersonii John C. Roos 1948-9-7 4005 Mono 2743 Comment
  CLARK-A1528-2165  Senecio uintahensis John C. Roos 1951-8-8 5101 Mono White Mountains 3200 Comment
  RSA0013666  Senecio spartioides J. C. Roos, Lucille Roos 1951-8-8 5102 Mono Big Prospector Meadow at head of Crooked Creek, White Mountains. 3171 Comment
  RSA0087206  Orobanche fasciculata John Roos, Lucille Roos 1952-7-30 5867 Mono Along Crooked Creek, White Mts. 2865 Comment
  RSA71744  Delphinium glaucum J. C. Roos 1952-7-30 5861 Mono Crooked Creek, White Mts. 2744 Comment
  RSA71755  Senecio multilobatus J. C. Roos, Lucille Roos 1951-8-8 5101 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
  UCSB37895  Cirsium andersonii Roos, John 1948-9-7 Mono Sierra Nevada Mtns. NE of Tuolumne Meadows 2743 Comment
  SEINET13947746 Image available Satureja douglasii J. C. Roos 1948-1 3963 Monterey 3400 ft elev 1036 Comment
  CLARK-A1528-2663  Cupressus macnabiana John C. Roos 1938-11-19 323 Napa Pope Valley Comment
  POM262893  Melica californica var. nevadensis J. C. Roos 1939-4-15 319 Napa Pope Valley. Comment
  POM263126  Cupressus macnabiana J. C. Roos 1938-11-19 323 Napa Pope Valley, near Altna Springs Comment
  POM263252  Hordeum marinum subsp. gussoneanum J. C. Roos 1939-5-13 273 Napa Angwin, Howell Mt. Comment
  POM263256  Sedella pumila J. C. Roos 1939-4-18 296 Napa Near Angwin, Napa Range. Comment
  POM263488  Draba verna J. C. Roos 1939-2-21 299 Napa Near Angwin, Napa Range. Comment
  POM263490  Madia exigua J. C. Roos 1939-5-13 267 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
  UCR24144  Fritillaria recurva var. coccinea John C. Roos 1939-3-3 301 Napa North Coast Range, Snell Valley, Angwin, Pacific Union College 549 Comment
  UCR25326  Trientalis latifolia John C. Roos 1939-4-29 290 Napa North Coast Range, Pacific Union College, Angwin 549 Comment
  UCR27515  Plectritis macrocera John C. Roos 1939-3-27 263 Napa North Coast Ranges, Pope Valley Comment
  UCR30532  Festuca microstachys John C. Roos 1939-4-15 318 Napa North Coast Range, Pope Valley, [near] Pacific Union College, Angwin 240 Comment
  UCR30536  Torreyochloa pallida var. pauciflora John C. Roos 1939-5-13 271 Napa North Coast Range, Pacific Union College, Angwin 503 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
  CAS-BOT-BC435232  Mesembryanthemum crystallinum J. C. Roos 1965-6-16 s.n. Orange Dana Point. Comment
  CLARK-A1528-1693  Chaenactis artemisiifolia John C. Roos 1965-6-16 Orange Dana Point Comment
  CLARK-A1528-1790  Corethrogyne filaginifolia var. virgata John C. Roos 1937-9-1 2519 Orange Laguna Beach Comment
  CLARK-A1528-2064  Porophyllum gracile John C. Roos 1965-6-16 Orange Dana Point Comment
  CLARK-A1528-2622  Dudleya lanceolata John C. Roos 1937-5-21 2338 Orange Santa Ana Comment
  CLARK-A1528-3428  Plantago indica John C. Roos 1957-7-29 6657 Orange Newport Beach Comment
  CLARK-A1528-3898  Ceanothus papillosus subsp. roweanus John C. Roos 1962-5-5 Orange Santa Ana Mountains 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-A1528-4272  Mimulus puniceus John C. Roos 1965-6-16 Orange Dana Point Comment
  CLARK-A1528-4534  Bromus carinatus John C. Roos 1937-5-20 2079 Orange San Juan Capistrano Comment
  CLARK-A1528-5031  Spartina foliosa John C. Roos 1937-9-1 427 Orange Seal Beach Comment
  CLARK-A1528-5706  Jussiaea repens var. peploides John C. Roos 1949-10-1 4685 Orange Doheney Beach Comment
  POM262908  Spartina foliosa J. C. Roos 1937-9-1 427 Orange Seal Beach. Comment
  POM263244  Stachys rigida subsp. rigida J. C. Roos 1937-5-10 614 Orange East of San Juan Capistrano. Comment
  POM265759  Elymus glaucus J. C. Roos 1937-5-10 2076 Orange San Juan Capistrano. Comment
  UCD134966  Pluchea odorata var. odorata J. C. Roos 1949-10-1 4684 Orange Doheney Beach. 3 Comment
  UCD96994  Mesembryanthemum crystallinum J. C. Roos 1965-6-16 s.n. Orange Dana Point. Comment
  UCR23422  Amaranthus powellii John C. Roos 1937-8-31 2558 Orange San Juan Capistrano [beach] Comment
  UCR26139  Haplopappus menziesii John C. Roos 1949-10-1 4683 Orange South Coast, Doheny Beach 0 Comment
  CAS-BOT-BC100515  Brickellia incana J. C. Roos 1965-6-23 s.n. Riverside Colorado Desert. Lost Palms Wash, north of Chiriaco Summit near the Eagle Mtns. Comment
  CAS-BOT-BC106191  Brickellia desertorum John Roos; Lucille Roos 1950-9-9 4986 Riverside Mt. Rubidoux, Riverside 396 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-BC150870  Diplacus puniceus John C. Roos 1952-5-14 5665 Riverside Hills 2 miles northwest of Perris 502 Comment
  CAS-BOT-BC167969  Rhus ovata John C. Roos 1950-10-15 5007 Riverside Dry Morongo Canyon about 1 mile S. of Riverside-San Bernardino County line 609 Comment
  CAS-BOT-BC184868  Chloris virgata John C. Roos 1952-9-3 5897 Riverside Riverside. At Citrus Experiment Station. 304 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-BC223695  Frankenia salina J. C. Roos 1965-6-30 s.n. Riverside Perris 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-BC379666  Layia platyglossa J. C. Roos 1965-6-13 s.n. Riverside Mountain Center, San Jacinto Mtns. Comment
  CLARK-A1528-1096  Gutierrezia bracteata John C. Roos 1940-9-2 222 Riverside Jackrabbit Trail 609 Comment
  CLARK-A1528-1279  Muhlenbergia asperifolia John C. Roos 1946-9-14 3002 Riverside San Jacinto Mountains 1066 Comment
  CLARK-A1528-1326  Salvia mohavensis John C. Roos 1947-11-1 3753 Riverside Lost Palms Canyon Comment
  CLARK-A1528-1368  Beloperone californica John C. Roos 1965-9-26 Riverside Santa Rosa Mountains Comment
  CLARK-A1528-1369  Beloperone californica John C. Roos 1949-4-11 4233 Riverside Chuckwalla Mountains Comment
  CLARK-A1528-1381  Tetragonia tetragonioides John C. Roos 1951-9-25 5288 Riverside Riverside 259 Comment
  CLARK-A1528-1445  Lomatium utriculatum John C. Roos 1937-3-24 1341 Riverside Pigeon Pass Comment
  CLARK-A1528-1447  Lomatium utriculatum John C. Roos 1952-2-29 5365 Riverside Reche Canyon 426 Comment
  CLARK-A1528-1465  Asclepias subulata John C. Roos 1937-8-20 1226 Riverside Colorado Desert Comment
  CLARK-A1528-1467  Sarcostemma cynanchoides subsp. hartwegii John C. Roos 1952-8-27 5891 Riverside Reche Canyon 457 Comment
  CLARK-A1528-1496  Nolina parryi John C. Roos 1942-5-2 1051 Riverside Joshua Tree National Monument 1371 Comment
  CLARK-A1528-1501  Washingtonia filifera John C. Roos 1943-12-19 2762 Riverside Pushawalla Canyon Comment
  CLARK-A1528-1533  Ambrosia acanthicarpa John C. Roos 1965-9-26 Riverside San Jacinto Mountains Comment
  CLARK-A1528-158  Aster exilis John C. Roos 1951-9-25 5275 Riverside Riverside 259 Comment
  CLARK-A1528-159  Aster hesperius John C. Roos 1951-9-25 5258 Riverside Riverside 259 Comment
  CLARK-A1528-1610  Aster hesperius John C. Roos 1951-9-25 5258 Riverside Fairmont Park 259 Comment
  CLARK-A1528-1613  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'Q 609 Comment
  CLARK-A1528-1616  Aster spinosus John C. Roos 1965-7-5 Riverside Blythe Comment
  CLARK-A1528-1621  Baccharis emoryi John C. Roos 1951-9-25 5285 Riverside Fairmont Park 259 Comment
  CLARK-A1528-1670  Brickellia desertorum John C. Roos 1951-10-19 5328 Riverside San Jacinto Mountains Comment
  CLARK-A1528-1696  Chaenactis fremontii John C. Roos 1937-4-18 2461 Riverside Comment
  CLARK-A1528-173  Bidens pilosa John C. Roos 1951-9-25 5264 Riverside Riverside 259 Comment
  CLARK-A1528-174  Brickellia californica John C. Roos 1951-10-19 5324 Riverside Badlands 609 Comment
  CLARK-A1528-1770  Chrysopsis villosa John C. Roos 1937-8-19 2499 Riverside San Jacinto Mountains Comment
  CLARK-A1528-1783  Corethrogyne filaginifolia John C. Roos 1937-8-17 1217 Riverside Idyllwild Comment
  CLARK-A1528-1794  Calycadenia tenella John C. Roos 1952-7-19 5816 Riverside Santa Ana Mountains 761 Comment
  CLARK-A1528-1796  Dicoria canescens John C. Roos 1957-11-30 6659 Riverside Coachella Valley 152 Comment
  CLARK-A1528-1805  Eclipta alba John C. Roos 1951-9-22 5233 Riverside Riverside Comment
  CLARK-A1528-1839  Eriophyllum multicaule John C. Roos 1940-5-4 882 Riverside Reche Canyon Comment
  CLARK-A1528-1862  Gutierrezia bracteata John C. Roos 1965-9-26 Riverside Palm Springs Station Comment
  CLARK-A1528-1917  Hemizonia fasciculata John C. Roos 1965-6-19 Riverside Santa Ana Mountains Comment
  CLARK-A1528-1951  Hulsea vestita John C. Roos 1965-6-13 Riverside San Jacinto Mountains Comment
  CLARK-A1528-1987  Lepidospartum squamatum var. palmeri John C. Roos 1942-10-23 2572 Riverside Morongo Valley 518 Comment
  CLARK-A1528-2022  Perityle emoryi John C. Roos 1946-12-7 3183 Riverside Pushawalla Palms Comment
  CLARK-A1528-2028  Peucephyllum schottii John C. Roos 1966-2-5 Riverside Indio Hills Comment
  CLARK-A1528-2029  Picris echioides John C. Roos 1937-5-23 2060 Riverside La Sierra Comment
  CLARK-A1528-2030  Peucephyllum schottii John C. Roos 1947-2-15 3247 Riverside Eagle Mountains Comment
  CLARK-A1528-2063  Porophyllum gracile John C. Roos 1946-11-30 3169 Riverside Chuckwalla Mountains Comment
  CLARK-A1528-2075  Rafinesquia neomexicana John C. Roos 1947-3-1 3304 Riverside Garnet Comment
  CLARK-A1528-2087  Senecio mohavensis John C. Roos 1949-4-10 4223 Riverside Chuckwalla Mountains Comment
  CLARK-A1528-2110  Stephanomeria virgata John C. Roos 1965-10-7 Riverside Beaumont Comment
  CLARK-A1528-2113  Stylocline micropoides John C. Roos 1949-4-11 4234 Riverside Chuckwalla Mountains Comment
  CLARK-A1528-2147  Ambrosia ilicifolia John C. Roos 1949-4-10 4230 Riverside Chuckwalla Mountains Comment
  CLARK-A1528-2174  Baccharis brachyphylla John C. Roos 1963-10-19 Riverside Whitewater Wash 579 Comment
  CLARK-A1528-2176  Hemizonia tenella John C. Roos 1952-7-19 5816 Riverside Santa Ana Mountains 761 Comment
  CLARK-A1528-2205  Coldenia palmeri John C. Roos 1947-2-1 3225 Riverside Painted Canyon Comment
  CLARK-A1528-2207  Coldenia palmeri John C. Roos 1947-3-1 3299 Riverside Coachella Valley Comment
  CLARK-A1528-2223  Cryptantha micrantha John C. Roos 1949-4-11 4239 Riverside Chuckwalla Mountains Comment
  CLARK-A1528-2232  Cryptantha racemosa John C. Roos 1948-5-1 3815 Riverside Whitewater 609 Comment
  CLARK-A1528-2248  Pectocarya linearis subsp. ferocula John C. Roos 1937-3-24 1338 Riverside Pigeon Pass Comment
  CLARK-A1528-2249  Pectocarya linearis John C. Roos 1952-2-29 5371 Riverside Reche Canyon 457 Comment
  CLARK-A1528-225  Gutierrezia bracteata John C. Roos 1951-9-23 5238 Riverside Reche Canyon Comment
  CLARK-A1528-2269  Berberis nevinii John C. Roos 1966-2-10 Riverside San Timoteo Canyon Comment
Read comments
Mar 12 2014
  CLARK-A1528-2281  Chilopsis linearis John C. Roos 1946-9-2 2938 Riverside San Timoteo Canyon 701 Comment
  CLARK-A1528-2291  Arabis pulchra John C. Roos 1962-3-24 Riverside Whitewater Comment
  CLARK-A1528-2300  Capsella bursa-pastoris John C. Roos 1966-3-24 Riverside Hemet Comment
  CLARK-A1528-2318  Lepidium dictyotum John C. Roos 1950-3-18 Riverside La Sierra College Comment
  CLARK-A1528-2319  Lepidium dictyotum John C. Roos 1950-3-18 4712 Riverside 457 Comment
Read comments
Jan 30 2016
  CLARK-A1528-2354  Thysanocarpus curvipes John C. Roos 1937-4-18 2197 Riverside San Jacinto Mountains Comment
  CLARK-A1528-2361  Opuntia basilaris John C. Roos 1937-4-18 Riverside Snow Creek Comment
  CLARK-A1528-2417  Achyronychia cooperi John C. Roos 1937-4-23 2123 Riverside Garnet Comment
  CLARK-A1528-2460  Silene antirrhina John C. Roos 1952-4-28 5590 Riverside Box Springs Mountains 396 Comment
  CLARK-A1528-2466  Silene laciniata John C. Roos 1965-6-19 Riverside Santa Ana Mountains Comment
  CLARK-A1528-2475  Spergularia bocconi John C. Roos 1966-3-13 Riverside Winchester Comment
  CLARK-A1528-2477  Spergularia macrotheca var. leucantha John C. Roos 1937-5-9 639 Riverside La Sierra University Comment
  CLARK-A1528-2552  Beta vulgaris John C. Roos 1937-5-23 2059 Riverside La Sierra Comment
  CLARK-A1528-2666  Juniperus californica John C. Roos 1947-2-15 3265 Riverside Eagle Mountains Comment
  CLARK-A1528-2743  Astragalus gambelianus John C. Roos 1952-5-19 5689 Riverside Moreno 487 Comment
  CLARK-A1528-2746  Astragalus insularis var. harwoodii John C. Roos 1949-4-11 4241 Riverside Chuckwalla Mountains Comment
  CLARK-A1528-2760  Astragalus tricarinatus John C. Roos 1949-4-2 4131 Riverside Whitewater Comment
  CLARK-A1528-2775  Dalea spinosa John C. Roos 1947-2-15 3233 Riverside Eagle Mountains Comment
  CLARK-A1528-2777  Dalea californica John C. Roos 1942-5-1 1150 Riverside Dry Morongo Canyon Comment
  CLARK-A1528-279  Picris echioides John C. Roos 1951-9-25 5280 Riverside Riverside 259 Comment
  CLARK-A1528-2806  Lotus strigosus John C. Roos 1952-4-9 5479 Riverside Riverside 259 Comment
  CLARK-A1528-2827  Lupinus densiflorus subsp. lacteus John C. Roos 1937-4-17 1352 Riverside San Timoteo Canyon Comment
  CLARK-A1528-2850  Lupinus sparsiflorus John C. Roos 1937-4-18 1357 Riverside Cabazon Comment
  CLARK-A1528-2853  Lupinus truncatus John C. Roos 1938-4-4 730 Riverside La Sierra Comment
  CLARK-A1528-2854  Lupinus truncatus John C. Roos 1952-4-9 5512 Riverside Riverside 304 Comment
  CLARK-A1528-2856  Medicago lupulina John C. Roos 1952-4-30 5604 Riverside March Air Force Base 487 Comment
  CLARK-A1528-2908  Quercus wislizeni var. frutescens John C. Roos 1947-1-4 3196 Riverside Box Springs Mountains 487 Comment
  CLARK-A1528-2935  Garrya flavescens John C. Roos 1966-4-23 Riverside Santa Ana Mountains Comment
  CLARK-A1528-2959  Erodium moschatum John C. Roos 1952-4-9 5480 Riverside Riverside 259 Comment
  CLARK-A1528-2965  Emmenanthe penduliflora John C. Roos 1952-4-13 5534 Riverside Box Springs Mountains 396 Comment
  CLARK-A1528-2973  Eucrypta micrantha John C. Roos 1958-2-21 Riverside Chuckwalla Mountains Comment
  CLARK-A1528-2980  Nama demissa John C. Roos 1947-3-15 3355 Riverside Santa Rosa Mountains 365 Comment
  CLARK-A1528-2990  Phacelia campanularia John C. Roos 1947-2-15 3245 Riverside Eagle Mountains Comment
  CLARK-A1528-3116  Salvia greatae John C. Roos 1963-11-2 Riverside Orocopia Mountains Comment
  CLARK-A1528-313  Xanthium strumarium var. glabratum John C. Roos 1951-9-25 5279 Riverside Riverside 259 Comment
  CLARK-A1528-3226  Hibiscus denudatus John C. Roos 1939-4-6 4145 Riverside Orocopia Mountains Comment
  CLARK-A1528-3255  Abronia villosa var. aurita John C. Roos 1942-6-20 1279 Riverside San Jacinto Valley Comment
  CLARK-A1528-3271  Boerhavia wrightii John C. Roos 1937-8-22 14 Riverside Comment
  CLARK-A1528-3361  Camissonia strigulosa John C. Roos 1965-6-13 Riverside San Jacinto Mountains Comment
  CLARK-A1528-3372  Clarkia unguiculata John C. Roos, Lucille Roos 1952-4-28 5587 Riverside Fairmount Park 259 Comment
  CLARK-A1528-3378  Epipactis gigantea John C. Roos 1948-5-29 3870 Riverside Whitewater Canyon Comment
  CLARK-A1528-3415  Platystemon californicus John C. Roos 1966-3-24 Riverside Winchester Comment
  CLARK-A1528-3429  Plantago insularis John C. Roos 1966-3-20 Riverside Comment
  CLARK-A1528-3430  Plantago erecta John C. Roos 1952-4-2 5461 Riverside Box Springs 487 Comment
  CLARK-A1528-3446  Navarretia atractyloides John C. Roos 1943-7-15 2733 Riverside San Timoteo Canyon Comment
  CLARK-A1528-3475  Linanthus dichotomus John C. Roos 1937-4-17 Riverside Aguanga Comment
  CLARK-A1528-3477  Linanthus liniflorus John C. Roos 1952-5-26 5712 Riverside Reche Canyon 457 Comment
  CLARK-A1528-3535  Langloisia schottii John C. Roos 1943-5-23 2663 Riverside Little San Bernardino Mountains Comment
  CLARK-A1528-3537  Langloisia setosissima John C. Roos 1949-4-6 4148 Riverside Comment
  CLARK-A1528-3573  Cheilanthes clevelandii John C. Roos 1937-6-7 1798 Riverside Sage Comment
  CLARK-A1528-3617  Eriogonum apiculatum John C. Roos 1946-8-27 2925 Riverside Santa Rosa Mountains 2194 Comment
  CLARK-A1528-3695  Eriogonum pusillum John C. Roos 1943-5-23 2667 Riverside Little San Bernardino Mountains 914 Comment
  CLARK-A1528-3733  Eriogonum elongatum John C. Roos 1975-12-6 Riverside 1219 Comment
  CLARK-A1528-3736  Eriogonum fasciculatum subsp. flavoviride John C. Roos 1948-5-15 3845 Riverside Eagle Mountains Comment
  CLARK-A1528-379  Sambucus caerulea John C. Roos, Lucille Roos 1951-10-24 5341 Riverside Pedley 243 Comment
  CLARK-A1528-3797  Rumex californicus John C. Roos 1952-5-26 5719 Riverside Reche Canyon 457 Comment
  CLARK-A1528-3812  Calandrinia ciliata John C. Roos 1952-3-19 5394 Riverside Box Springs Mountains 457 Comment
  CLARK-A1528-394  Atriplex canescens John C. Roos 1951-10-19 5326 Riverside San Jacinto Valley 457 Comment
  CLARK-A1528-3994  Heteromeles arbutifolia John C. Roos, Lucille Roos 1952-6-21 5780 Riverside Reche Canyon 487 Comment
  CLARK-A1528-404  Beta vulgaris John C. Roos 1951-10-24 5334 Riverside Riverside 228 Comment
  CLARK-A1528-4045  Rubus vitifolius John C. Roos 1952-6-25 5793 Riverside Riverside Comment
  CLARK-A1528-4129  Ribes indecorum John C. Roos 1947-3-15 3341 Riverside San Jacinto Mountains Comment
  CLARK-A1528-4130  Ribes indecorum John C. Roos 1952-2-29 5360 Riverside Box Springs Mountains 487 Comment
  CLARK-A1528-4177  Castilleja foliolosa John C. Roos 1940-5-4 880 Riverside San Timoteo Canyon Comment
  CLARK-A1528-4225  Mohavea confertiflora John C. Roos 1937-4-28 1287 Riverside Desert Center Comment
  CLARK-A1528-4227  Mohavea confertiflora John C. Roos 1947-2-14 3252 Riverside Eagle Mountains Comment
  CLARK-A1528-4278  Keckiella cordifolia John C. Roos, Lucille Roos 1952-6-24 5786 Riverside Beaumont 731 Comment
  CLARK-A1528-4332  Veronica peregrina subsp. xalapensis John C. Roos 1937-5-10 2073 Riverside Elsinore Comment
  CLARK-A1528-4421  Phoradendron longispicum John C. Roos 1952-3-26 5420 Riverside Riverside 259 Comment
  CLARK-A1528-4437  Larrea tridentata John C. Roos 1946-11-30 3161 Riverside Chuckwalla Mountains Comment
  CLARK-A1528-4480  Aristida purpurea John C. Roos 1951-10-19 5325 Riverside Old Jackrabbit Trail 609 Comment
  CLARK-A1528-4484  Aristida purpurea John C. Roos 1965-6-23 Riverside Eagle Mountain Comment
  CLARK-A1528-4493  Avena barbata John C. Roos 1952-2-18 5353 Riverside Riverside 274 Comment
  CLARK-A1528-4494  Avena barbata John C. Roos, Lucille Roos 1950-4-15 4738 Riverside Box Springs Mountains 457 Comment
  CLARK-A1528-4501  Bothriochloa barbinodis John C. Roos 1947-2-15 3236 Riverside Eagle Mountains Comment
  CLARK-A1528-4544  Bromus mollis John C. Roos 1939-5-27 Riverside Reche Canyon Comment
  CLARK-A1528-4546  Bromus mollis John C. Roos, Lucille Roos 1950-4-15 4740 Riverside Pigeon Pass 457 Comment
  CLARK-A1528-4563  Bromus trinii John C. Roos, Lucille Roos 1952-5-24 5711 Riverside Moreno Valley 518 Comment
  CLARK-A1528-4564  Bromus unioloides Alfred R. Roos 1937-11-13 Riverside Riverside 243 Comment
  CLARK-A1528-4608  Elymus triticoides John C. Roos 1937-5-19 2062 Riverside Norco Comment
  CLARK-A1528-4613  Eragrostis mexicana John C. Roos 1965-7-7 Riverside San Jacinto Comment
  CLARK-A1528-4652  Festuca grayi John C. Roos 1952-4-9 5482 Riverside Fairmount Park 259 Comment
  CLARK-A1528-4658  Festuca microstachys John C. Roos 1937-5-10 2071 Riverside Lake Elsinore Comment
  CLARK-A1528-4659  Festuca microstachys John C. Roos 1950-4-15 4737 Riverside Reche Canyon 761 Comment
  CLARK-A1528-4667  Festuca pacifica John C. Roos 1937-5-2 1282 Riverside Riverside Comment
  CLARK-A1528-4674  Gastridium ventricosum John C. Roos 1965-6-30 Riverside Santa Ana Mountains Comment
  CLARK-A1528-4676  Glyceria elata John C. Roos 1941-8-2 85 Riverside San Jacinto Mountains Comment
  CLARK-A1528-4680  Hilaria rigida John C. Roos 1947-3-1 3298 Riverside Coachella Valley Comment
  CLARK-A1528-4696  Imperata brevifolia John C. Roos 1965-6-23 Riverside Palm Springs Comment
  CLARK-A1528-4709  Leersia oryzoides John C. Roos 1965-11-4 Riverside Riverside Comment
  CLARK-A1528-4759  Muhlenbergia minutissima John C. Roos, Lucille Roos 1952-10-18 5903 Riverside Little San Bernardino Mountains 1219 Comment
  CLARK-A1528-4793  Phalaris aquatica John C. Roos 1962-6-30 Riverside Santa Ana Mountains Comment
  CLARK-A1528-4811  Phragmites australis John C. Roos 1947-11-1 3760 Riverside Eagle Mountain Comment
  CLARK-A1528-485  Lotus rigidus John C. Roos 1951-9-25 Riverside Pinyon Crest Comment
  CLARK-A1528-4855  Layia glandulosa John C. Roos 1937-4-18 1374 Riverside Cabazon Comment
  CLARK-A1528-4930  Monardella lanceolata John C. Roos 1943-8-8 2710 Riverside San Jacinto Mountains Comment
  CLARK-A1528-4943  Hulsea vestita subsp. callicarpha John C. Roos 1942-6-20 1275 Riverside San Jacinto Mountains Comment
  CLARK-A1528-4944  Nama demissa John C. Roos 1937-4-18 1388 Riverside Whitewater Comment
  CLARK-A1528-4964  Salvia mohavensis John C. Roos 1947-2-15 3234 Riverside Eagle Mountains Comment
  CLARK-A1528-4995  Atriplex rosea John C. Roos 1965-8-4 Riverside Arlington Comment
  CLARK-A1528-5006  Antennaria rosea John C. Roos 1937-8-18 2409 Riverside San Jacinto Mountains 2743 Comment
  CLARK-A1528-5053  Juncus phaeocephalus var. paniculatus John C. Roos 1948-5-15 3837 Riverside Eagle Mountains Comment
  CLARK-A1528-5054  Juncus acutus var. sphaerocarpus John C. Roos 1948-5-15 3855 Riverside Eagle Mountains Comment
  CLARK-A1528-5056  Astragalus tricarinatus John C. Roos 1948-4-24 3805 Riverside Whitewater Canyon 609 Comment
  CLARK-A1528-510  Melilotus albus John C. Roos 1951-9-25 5256 Riverside Riverside 259 Comment
  CLARK-A1528-5111  Clematis ligusticifolia John C. Roos 1951-9-25 5252 Riverside Riverside 259 Comment
  CLARK-A1528-5208  Pterostegia drymarioides John C. Roos 1952-3-19 5397 Riverside Box Springs Mountains Comment
  CLARK-A1528-5258  Sporobolus cryptandrus John C. Roos 1965-8-15 Riverside San Jacinto Valley Comment
  CLARK-A1528-5360  Mentha spicata John C. Roos 1952-8-6 5881 Riverside Riverside 259 Comment
  CLARK-A1528-5387  Raphanus sativus John C. Roos, Lucille Roos 1951-10-24 5342 Riverside Pedley 243 Comment
  CLARK-A1528-5395  Atriplex polycarpa John C. Roos 1943-12-19 2763 Riverside Pushawalla Wash Comment
  CLARK-A1528-5400  Atriplex coronata var. notatior John C. Roos 1952-5-14 5668 Riverside San Jacinto River 426 Comment
  CLARK-A1528-5488  Nama stenocarpa John C. Roos 1951-10-19 5327 Riverside San Jacinto Valley 457 Comment
  CLARK-A1528-5489  Krameria grayi John C. Roos 1948-4-24 3804 Riverside Whitewater 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-A1528-5507  Brickellia desertorum John C. Roos 1949-9-21 4665 Riverside Reche Canyon 457 Comment
  CLARK-A1528-5524  Crepis capillaris John C. Roos 1950-4-22 4756 Riverside Reche Canyon 761 Comment
  CLARK-A1528-5542  Sporobolus flexuosus John C. Roos 1946-9-14 3021 Riverside Asbestos Mountain 1066 Comment
  CLARK-A1528-5562  Chenopodium botrys Alfred R. Roos 1947-8-15 Riverside Santa Ana River Comment
  CLARK-A1528-5672  Psoralea physodes John C. Roos 1960-5-30 Riverside Santa Ana Mountains 1219 Comment
  CLARK-A1528-5688  Krameria grayi John C. Roos 1946-5-15 3856 Riverside Eagle Mountains Comment
  CLARK-A1528-57  Elymus triticoides John C. Roos 1951-10-24 5344 Riverside Riverside 259 Comment
  CLARK-A1528-5703  Menodora spinescens John C. Roos 1948-5-15 3860 Riverside Eagle Mountain Comment
  CLARK-A1528-5727  Ruta graveolens John C. Roos 1948-2-21 3771 Riverside Reche Canyon 457 Comment
  CLARK-A1528-5731  Castilleja affinis John C. Roos 1937-5-10 2075 Riverside Perris 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-A1528-6888  Brodiaea filifolia John C. Roos 1952-5-14 5667 Riverside San Jacinto River 426 Comment
  CLARK-A1528-7788  Baccharis salicifolia John C. Roos 1947-3-15 3331 Riverside Dos Palmas Spring Comment
Read comments
Oct 23 2015
  CLARK-A1528-7789  Baccharis salicifolia John C. Roos 1947-3-15 3331 Riverside Dos Palmas Spring Comment
Read comments
Oct 23 2015
  CLARK-A1528-7830  Festuca arundinacea John C. Roos 1949-5-21 4317 Riverside Temecula 304 Comment
  HSC78522  Chaenactis glabriuscula var. glabriuscula J. C. Roos 1966-4-29 Riverside Hills between March AFB and Lakeview Comment
  LA102169  Aristida purpurea John C. Roos; 1966-4-29 sn Riverside between March AFB and Lakeview Comment
  LA102170  Elymus condensatus John C. Roos; 1963-8-10 sn Riverside Blythe Comment
Read comments
Mar 10 2014
  LA102175  Phalaris lemmonii John C. Roos; 1966-3-24 sn Riverside Winchester (near Hemet) Comment
  LA102371  Pulicaria paludosa John C. Roos; 1965-6-23 Riverside Palm Springs Comment
  POM250764  Petunia parviflora J. C. Roos 1937-6-7 514 Riverside South foot of Jackrabbit Trail, near San Jacinto. Comment
  POM251788  Samolus parviflorus J. C. Roos 1937-6-19 23 Riverside Murrietta Hot Springs. Comment
  POM262907  Lupinus sparsiflorus subsp. sparsiflorus J. C. Roos 1937-3-23 434 Riverside Whitewater, Colorado Desert. Comment
  POM262921  Verbena lasiostachys J. C. Roos 1937-8-23 529 Riverside Snow Creek, north base of Mt. San Jacinto. Comment
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Oct 22 2014
  POM262939  Draba saxosa J. C. Roos 1937-8-18 495 Riverside Forest near Hidden Lake, San Jacinto Mts. Comment
  POM262957  Layia platyglossa subsp. platyglossa J. C. Roos 1941-5-10 130 Riverside Meadow above Hemet Lake, San Jacinto Mts. Comment
  POM262958  Eriodictyon crassifolium J. C. Roos 1941-5-10 131 Riverside San Jacinto River bridge, east of Hemet Comment
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Apr 29 2011
  POM263058  Penstemon clevelandii subsp. connatus J. C. Roos 1941-5-10 128 Riverside Pinyon Flats Camp, Santa Rosa Mountains. 1220 Comment
  POM263162  Ambrosia acanthicarpa J. C. Roos 1937-8-19 359 Riverside Thomas Valley, San Jacinto Mts. Comment
  POM263174  Bouteloua aristidoides J. C. Roos 1937-8-22 478 Riverside Colorado River, north of Blythe. Comment
  POM263241  Erigeron foliosus J. C. Roos 1938-5-26 474 Riverside La Sierra. Comment
  POM263559  Eriogonum wrightii var. membranaceum J. C. Roos 1937-8-17 360 Riverside Near Idyllwild, San Jacinto Mountains. Comment
  POM264307  Allium haematochiton J. C. Roos 1937-3-10 634 Riverside Norco hills. Comment
  POM265678  Dudleya saxosa subsp. aloides J. C. Roos 1937-4-18 1284 Riverside Near Cabazon. Comment
  POM265699  Lastarriaea coriacea J. C. Roos 1937-5-2 1802 Riverside La Sierra, western Riverside. [Collection is Jack Frost Lake. aka Frost Reservoir, apparently a part of La Sierra, Loma Linda University Campus] ca. 1937 south of Indiana Avenue and west of Sayward Circle, near Pierce. Comment
  POM265700  Chorizanthe uniaristata J. C. Roos 1937-4-23 1807 Riverside At Whitewater. Comment
  POM265809  Daucus pusillus J. C. Roos 1937-5-2 1399 Riverside La Sierra, western Riverside. [Collection is Jack Frost Lake. aka Frost Reservoir, apparently a part of La Sierra [Loma Linda University Campus] ca. 1937 south of Indiana Avenue and west of Sayward Circle, near Pierce., Owned by city of Riverside ca. 2000 Comment
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May 21 2009
  POM266285  Ericameria palmeri var. pachylepis J. C. Roos 1937-11-2 2447 Riverside Hills N of Pigeon Pass, Northwestern Riverside County. Comment
  POM266631  Epipactis gigantea J. C. Roos 1942-5-2 1129 Riverside Cottonwood Springs, northern Colorado Desert. Comment
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Oct 9 2010
  POM302488  Camissonia strigulosa J. C. Roos 1943-8-8 2703 Riverside Dry flat, Hall Canyon, San Jacinto Mts. 1768 Comment
  POM302490  Euonymus occidentalis var. parishii J. C. Roos 1943-8-8 2699 Riverside Hall Canyon, San Jacinto Mts. 1829 Comment
  POM431208  Imperata brevifolia J. C. Roos 1965-6-23 s.n. Riverside Palm Springs Comment
  RSA171386  Salvia greatae J. C. Roos 1963-9-9 s.n. Riverside Desert wash at Salt Creek Wash. 152 Comment
  RSA309652  Aristida purpurea var. parishii J. C. Roos 1966-4-29 s.n. Riverside Hills between March AFB and Lakeview. Comment
  RSA351415  Atriplex muelleri J. C. Roos 1965-10-17 s.n. Riverside 20 miles west of Blythe Comment
  RSA40605  Bahia dissecta J. C. Roos 1946-8-27 2923 Riverside Santa Rosa Mountains. 2287 Comment
  RSA40611  Sporobolus contractus J. C. Roos 1946-9-14 3028 Riverside 1 mile east of Pinyon Flats, Santa Rosa Mountains Comment
  RSA41282  Boerhavia wrightii J. C. Roos 1937-8-22 14 Riverside Colorado River, north of Blythe. Comment
  RSA425023  Ambrosia acanthicarpa J. C. Roos 1965-9-26 s.n. Riverside Hemet Valley, San Jacimto Mtns. Comment
  RSA431203  Baccharis brachyphylla J. C. Roos 1958-9-27 s.n. Riverside Carrizo Creek near Black Hhill, Santa Rosa Mtns 915 Comment
  RSA443542  Simmondsia chinensis J. C. Roos 1966-3-20 s.n. Riverside Eagle Mts., Last Palms Canyon. 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
  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
  RSA444467  Mimulus aurantiacus var. pubescens J. C. Roos 1965-6-19 s.n. Riverside Skyline Drive, S of Corona Comment
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May 21 2011
  RSA444483  Salvia vaseyi J. C. Roos 1965-6-13 s.n. Riverside Santa Rosa Mountains: Pines to Palms Highway (74), below Dos Palmas Springs. Comment
  RSA444788  Garrya flavescens var. pallida J. C. Roos 1966-4-23 s.n. Riverside Skyline Drive, Santa Ana Mtns., above Corona. Comment
  RSA44862  Ruta chalepensis J. C. Roos 1948-2-21 3771 Riverside Near spring with Baccharis wiminea and Emoryi, pass between Pigeon Pass and Reche Canyon. 457 Comment
  RSA44866  Penstemon eatonii J. C. Roos 1948-5-15 3839 Riverside Lost Palms Canyon, Eagle Mountains., Colorado Desert. Comment
  RSA44915  Solanum umbelliferum J. C. Roos 1947-5-24 3646 Riverside Steep sandy road-fill, south of Banning 1159 Comment
  RSA450072  Keckiella cordifolia J. C. Roos, L. Roos 1952-6-24 5786 Riverside In the hills west of Beaumont. Comment
  RSA450122  Psorothamnus schottii J. C. Roos 1966-5-2 s.n. Riverside Mouth of Pushwalla Canyon, Indio Mtns. Comment
  RSA450147  Navarretia hamata J. C. Roos 1965-6-30 s.n. Riverside ortega Highway, Santa Ana Mtns. Comment
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May 21 2011
  RSA450184  Pinus quadrifolia J. C. Roos 1965-8-18 s.n. Riverside Summit of Pines to Palm Hwy., Thomas Valley, San Jacinto Mtns. Comment
  RSA450197  Lotus heermannii J. C. Roos 1952-6-13 5768 Riverside Pigeon Pass. 427 Comment
  RSA450205  Frankenia grandifolia J. C. Roos 1965-6-30 s.n. Riverside Perris. Comment
  RSA450252  Eriogonum wrightii var. nodosum J. C. Roos 1967-10-28 s.n. Riverside Whitewater. 427 Comment
  RSA450255  Prunus virginiana var. demissa J. C. Roos 1965-7-3 s.n. Riverside Dark Canyon, north fork of San Jacinto River. Comment
  RSA450318  Pediomelum californicum J. C. Roos 1965-6-13 s.n. Riverside Santa Rosa Mountains, Pinon flats Comment
  RSA450444  Cryptantha intermedia J. C. Roos 1950-4-22 4746 Riverside Pigeon Pass Comment
  RSA450463  Bromus catharticus A. R. Roos 1937-11-13 s.n. Riverside Riverside. 244 Comment
  RSA450491  Hemizonia kelloggii J. C. Roos 1965-6-27 s.n. Riverside Reche Canyon Comment
  RSA450644  Achnatherum speciosum J. C. Roos 1965-6-13 sn. Riverside San Jacinto Valley, Valle Vista (east of Hemet). Comment
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Mar 27 2011
  RSA450746  Helianthus niveus subsp. canescens J. C. Roos 1962-4-3 s.n. Riverside Palm Springs Airport. 121 Comment
  RSA45224  Salvia greatae L. Roos 1949-4-6 4154 Riverside Mouth of rocky canyon, south foot Chocolate Mtns., north of Pope. 91 Comment
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May 26 2015
  RSA45531  Fagonia pachyacantha J. C. Roos, L. Roos 1949-4-6 4146 Riverside Orocopia Mts., 2.5 mi. northeast of Dos Palmos Springs. 183 Comment
  RSA48881  Baccharis sergiloides J. C. Roos, L. Roos 1949-9-17 4660 Riverside E side Whitewater Canyon, 2.2 mi. N of Hwy 99 [=I-10]; W side of Painted Hill. 612 Comment
  RSA591812  Marah macrocarpa J. C. Roos 1966-4-23 s.n. Riverside Santa Ana Mtns. S of Corona Comment
  RSA648674  Aristida adscensionis J. C. Roos 1946-10-26 3143 Riverside in the Chuckwalla Mtns., Colorado Desert. Comment
  RSA648739  Helianthemum scoparium var. scoparium J. C. Roos 1941-2-1 226 a Riverside south of thePlateau, Reche Canyon. 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
  RSA659490  Stillingia spinulosa J. C. Roos 1949-3-26 4120 Riverside Coachella Valley, Indio. Comment
  RSA659515  Datura discolor J. C. Roos 1965-11-6 s.n. Riverside Colorado Desert, 26 miles west of Blythe. Comment
  RSA659516  Nicotiana obtusifolia J. C. Roos 1966-2-5 s.n. Riverside Pushawalla Wash near 1000 Palms, Indio Hills. Comment
  RSA659606  Lithophragma affine J. C. Roos, L. Roos 1954-4-17 6067 Riverside Canyon SE of summit of Reche Canyon. 686 Comment
  RSA659663  Euphorbia setiloba J. C. Roos 1947-11-1 3756 Riverside On the edge of Lost Palms wash, Eagle Mtns. Comment
  RSA659687  Cryptantha micrantha var. lepida J. C. Roos 1947-5-24 6194 Riverside San Jacinto Mtns., at the junction of Dark Canyon Camp Road with Idyllwild to Banning Road. Comment
  RSA659691  Plagiobothrys collinus var. californicus J. C. Roos 1952-2-29 5368 Riverside Reche Canyon. 457 Comment
  RSA659768  Astragalus didymocarpus J. C. Roos 1952-4-30 5606 Riverside Hills between Camp Haan and Riverside 518 Comment
  RSA662070  Astragalus nuttallianus J. C. Roos 1958-3-15 s.n. Riverside 3 miles SE of Desert Center, Chuckwalla Mtns. Comment
  RSA662416  Wyethia ovata J. C. Roos 1965-7-22 s.n. Riverside Thomas Valley, San Jacinto Mtns. Comment
  RSA69833  Elymus X gouldii J. C. Roos, L. Roos 1951-10-24 5344 Riverside Fairmount Park. 259 Comment
  RSA78368  Brickellia desertorum J. C. Roos 1950-12-2 5029 Riverside Monson Canyon, Eagle Mts. 915 Comment
  RSA85086  Hordeum intercedens J. C. Roos 1952-4-23 5571 Riverside 1 miles southeast of Perris 427 Comment
  RSA85116  Gilia angelensis J. C. Roos 1952-4-2 5460 Riverside Box Springs Comment
  RSA85120  Pellaea mucronata var. mucronata J. C. Roos 1952-5-7 5616 Riverside Box Springs Mountains, north of Canyon Crest Heights 457 Comment
  RSA85407  Nemacladus ramosissimus J. C. Roos, L. Roos 1952-4-28 5591 Riverside Box Springs Mtns. 396 Comment
  RSA85440  Linaria canadensis var. texana J. C. Roos 1952-4-9 5504 Riverside north side of Mt. Rubidoux 381 Comment
  RSA85445  Tauschia arguta J. C. Roos 1952-4-13 5521 Riverside Box Springs Mtns. 520 Comment
  RSA85451  Hesperocnide tenella J. C. Roos 1952-4-13 5537 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
  RSA85460  Sphaeralcea ambigua subsp. ambigua J. C. Roos 1952-4-16 5542 Riverside Box Springs 488 Comment
  RSA85503  Microseris douglasii subsp. douglasii J. C. Roos 1952-4-23 5573 Riverside 1 mile southeast of Perris 427 Comment
  RSA85506  Ceanothus leucodermis J. C. Roos 1952-4-23 5574 Riverside 1/2 mi. southwest of Highgrove. 305 Comment
  RSA85521  Cirsium occidentale var. californicum J. C. Roos 1952-4-27 5586 Riverside San Timoteo Canyon south of Redlands. 427 Comment
  RSA85878  Astragalus didymocarpus var. obispoensis J. C. Roos 1952-4-30 5606 Riverside Hills between Camp Haan and Riverside 518 Comment
  RSA89873  Brickellia desertorum J. C. Roos, L. Roos 1950-9-30 4994 Riverside N base of Pigeon Pass, Box Springs Mts. 457 Comment
  RSA89967  Baccharis brachyphylla J. C. Roos 1950-10-15 5008 Riverside San Bernardino Mtns. Dry Morongo Canyon, c. l mi south of Riverside-San Bernardino county line. 612 Comment
  SBBG53852  Soliva sessilis J. C. Roos, L. Roos 1953-5-9 5916 Riverside Fairmount Park 259 Comment
  SD132541  Equisetum telmateia subsp. braunii John C. Roos 1952-6-25 5794 Riverside Riverside, Fairmount Park, west end 259 Comment
  SEINET5554570  Hoffmannseggia glauca J. C. Roos 1965-1 s.n. Riverside 17 mi W of Blythe Colorado Desert Comment
  SEINET9255224 Image available Croton californicus J. C. Roos 1965-6-23 Riverside Palm Springs Comment
  UC1010231  Prunus fremontii John and Lucille Roos 1953-3-21 5908 Riverside S of Palm Springs (Andreas Canyon, mouth of) 274 Comment
  UC1010304  Crypsis vaginiflora John C. Roos 1952-6-4 5735 Riverside river bottomland 1 1/2 mi se Perris; San Jacinto River 426 Comment
  UC1010309  Brickellia desertorum John and Lucille Roos 1950-9-9 4986 Riverside Mt. Rubidoux 396 Comment
  UC1010312  Brickellia desertorum John and Lucille Roos 1950-9-30 4995 Riverside 3 mi n of Elsinore (hills midway between Steele Pk. and Elsinore) 487 Comment
  UC1043018  Bromus trinii John and Lucille Roos 1952-5-24 5711 Riverside hills n of Moreno 518 Comment
  UC1043025  Epilobium campestre John C. Roos 1952-5-14 5662 Riverside near Box Springs; Edgemont 487 Comment
  UC1519870  Atriplex muelleri J. C. Roos 1965-10-17 Riverside on the roadside 20 mi w Blythe; w of Blythe Comment
  UCD128668  Amauriopsis dissecta J. C. Roos 1946-8-24 2923 Riverside Santa Rosa Mountains. 2286 Comment
  UCD129645  Brickellia oblongifolia var. linifolia J. C. Roos 1946-8-27 2917 Riverside Santa Rosa Mountain. 1371 Comment
  UCR18572  Senecio californicus John C. Roos 1966-4-5 s.n. Riverside Winchester 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
  UCR18593  Tetradymia comosa John C. Roos, L. Roos 1952-7-8 5808 Riverside Reche Canyon 488 Comment
  UCR18625  Perityle emoryi John C. Roos 1966-3-20 s.n. Riverside Sonoran (Colorado) Desert, Chuckwalla Mtns, rocky canyon 2.5 miles SE of Desert Center 610 Comment
  UCR18660  Haplopappus squarrosus John C. Roos 1952-8-27 5890 Riverside Reche Canyon, Haas Ranch 457 Comment
  UCR18783  Cheilanthes parryi John C. Roos 1946-11-30 3168 Riverside Sonoran (Colorado) Desert, Chuckwalla Mtns., north base 457 Comment
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May 21 2011
  UCR18807  Salvia greatae John C. Roos, Lucille Roos 1949-4-6 4154 Riverside Sonoran (Colorado) Desert, [North] foot of the Chocolate Mountains, north of Pope. Salt Creek area 91 Comment
  UCR18808  Salvia apiana John C. Roos 1965-6-13 s.n. Riverside Santa Rosa Mtns., Dos Palmas Spring Comment
  UCR18825  Tetracoccus hallii John C. Roos 1965-6-23 s.n. Riverside Sonoran (Colorado) Desert, Eagle Mtns., Lost Palms Canyon, north of Chiriaco Summit Comment
  UCR18833  Cercocarpus betuloides John C. Roos 1948-5-15 3854 Riverside Sonoran (Colorado) Desert, Eagle Mountains, upper Lost Palms Canyon 1037 Comment
  UCR18899  Atriplex serenana John C. Roos 1965-8-3 s.n. Riverside Gilman Hot Springs Comment
  UCR18912  Colubrina californica John C. Roos 1960-4-8 s.n. Riverside Sonoran (Colorado) Desert, Chuckwalla Mts.; canyon 2.5 mi. SE of Desert Center 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
  UCR18954  Euonymus occidentalis var. parishii John C. Roos 1941-8-2 88 Riverside San Jacinto Mtns, Dark Canyon Comment
  UCR18965  Calystegia sepium subsp. binghamiae John C. Roos, L. Roos 1952-6-10 5763 Riverside San Bernardino Valley Region, Fairmont Park in Riverside, edge of lake 259 Comment
  UCR18979  Psorothamnus spinosus John C. Roos 1965-6-23 s.n. Riverside Coachella Valley, N of Indio Comment
  UCR18981  Psoralea physodes John C. Roos 1960-5-30 s.n. Riverside Santa Ana Mtns., Ridge north of Bedford Peak. 1220 Comment
  UCR19012  Leersia oryzoides John C. Roos, L. Roos 1951-10-24 5345 Riverside Riverside, shallow stream at outlet of Fairmount Park Lake 238 Comment
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Feb 23 2014
  UCR19013  Koeleria macrantha John C. Roos 1952-4-29 5598 Riverside Reche Canyon 457 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
  UCR19111  Boerhavia wrightii John C. Roos 1965-9-5 s.n. Riverside Sonoran (Colorado) Desert, Desert Center Comment
  UCR19114  Lythrum californicum John C. Roos 1946-9-14 3010 Riverside Santa Rosa Mtns, Dos Palmas Spring, east of Asbestos Mountain 1070 Comment
  UCR19148  Gilia angelensis John C. Roos, L. Roos 1954-4-17 6069 Riverside Pass at summit of Reche Canyon 732 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
  UCR19182  Amaranthus palmeri John C. Roos 1965-9-28 s.n. Riverside San Jacinto Valley, Hemet Comment
  UCR19207  Pinus monophylla John C. Roos 1947-12-14 3764 Riverside Sonoran (Colorado) Desert, Eagle Mtns., Lost Palms Canyon Comment
  UCR19212  Argemone corymbosa John C. Roos, Lucille Roos 1949-4-11 4245 Riverside Sonoran (Colorado) Desert, Hayfield Dry Lake Comment
  UCR19213  Platystemon californicus John C. Roos 1942-5-2 1147 Riverside Mojave Desert, Joshua Tree National Monument [now Park]. Hidden Valley Comment
  UCR19271  Pterostegia drymarioides John C. Roos 1952-3-19 5397 Riverside Peninsular Range, Box Springs Mountains [east edge of Riverside] 457 Comment
  UCR19284  Pinus quadrifolia John C. Roos 1947-4-5 3436 Riverside San Jacinto Mtns., Head of Thomas Valley 1463 Comment
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Oct 25 2011
  UCR19358  Festuca octoflora John C. Roos 1966-3-20 s.n. Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, 2 miles southeast of Desert Center 366 Comment
  UCR19510  Chaetopappa aurea John C. Roos 1965-7-22 s.n. Riverside San Jacinto Mtns, near Mountain Center 1372 Comment
  UCR19710  Trifolium gracilentum John C. Roos 1952-4-9 5485 Riverside Hill by Fairmont Park, Riverside 259 Comment
  UCR20317  Brickellia desertorum John C. Roos 1949-9-17 4662 Riverside San Bernardino Mtns / Sonoran (Colorado) Desert, E side Whitewater Canyon, 2.2 mi. north of Hwy 99 [=I-10]; W side of Painted Hill 612 Comment
  UCR20390  Camissonia refracta John C. Roos 1966-3-20 s.n. Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, 2 miles southeast of Desert Center 366 Comment
  UCR20454  Aristida adscensionis John C. Roos 1952-4-9 5508 Riverside Riverside, east face of Mt. Rubidoux 366 Comment
  UCR20459  Eleusine indica John C. Roos, E. C. Jaeger 1952-10-8 5899 Riverside Riverside, in moist clay garden 259 Comment
  UCR20626  Bromus carinatus John C. Roos, L. Roos 1954-5-29 6122 Riverside Canyon 1 mi SE of summit of Reche Canyon 686 Comment
  UCR23270  Brickellia desertorum John C. Roos, L. Roos 1950-10-28 5020 Riverside Perris-Aguanga basin region, N base Mt. Russell, 1 mi SE of Moreno 550 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
  UCR23311  Platanus racemosa John C. Roos 1952-4-23 5575 Riverside W side of Box Springs Mtns. above Canyon Crest Heights 488 Comment
  UCR23314  Stipa speciosa John C. Roos 1952-4-9 5495 Riverside Riverside, W face of Mt. Rubidoux 400 Comment
  UCR23319  Aristida parishii John C. Roos 1952-4-16 5551 Riverside Reche Canyon. 457 Comment
  UCR23348  Marsilea vestita John C. Roos 1965-6-30 s.n. Riverside Perris-Aguanga Basin region, San Jacinto River bottom, near Perris Comment
  UCR23393  Sanicula tuberosa John C. Roos 1950-4-22 4755 Riverside Summit of Reche Canyon. 765 Comment
  UCR23552  Capsella bursa-pastoris John C. Roos 1966-3-24 s.n. Riverside Hemet, in a vacant lot Comment
  UCR23768  Encelia actoni John C. Roos 1942-6-20 992 Riverside San Jacinto Valley, E of Hemet Comment
  UCR23773  Dicoria canescens John C. Roos, L. Roos 1957-11-30 6659 Riverside Coachella Valley, 6 mi NW of Thousand Palms 152 Comment
  UCR23816  Hemizonia pungens subsp. laevis John C. Roos 1965-6-21 s.n. Riverside San Jacinto Comment
  UCR23899  Lotus nevadensis var. nevadensis John C. Roos 1937-8-18 2541 Riverside San Jacinto Mtns., Near Willow Creek 2439 Comment
  UCR23912  Lotus heermannii John C. Roos 1952-6-13 5768 Riverside [Box Springs Mountains], Pigeon Pass. 427 Comment
  UCR23945  Lupinus formosus John C. Roos 1943-5-23 2664 Riverside S Mojave Desert, Little San Bernardino Mtns 1524 Comment
  UCR23965  Bouteloua aristidoides John C. Roos 1946-9-14 3026 Riverside Santa Rosa Mtns., Pinyon Flats 1220 Comment
  UCR23971  Aristida purpurea var. nealleyi John C. Roos 1937-8-20 1225 Riverside Santa Rosa Mtns., 1 mi east of Pinon Flats Public Camp 1220 Comment
  UCR23991  Eragrostis curvula var. curvula John C. Roos 1965-9-16 s.n. Riverside Lakeview Comment
  UCR24097  Washingtonia filifera John C. Roos 1943-12-19 2762 Riverside Sonoran (Colorado) Desert, Pushawalla Canyon Comment
  UCR24138  Malacothrix clevelandii John C. Roos 1950-4-22 4756 Riverside 0.3 mi NE of summit of Reche Canyon 762 Comment
  UCR24243  Linanthus pygmaeus John C. Roos 1950-4-22 4757 Riverside Hills NE of the summit of Reche Canyon 823 Comment
  UCR24298  Stipa pulchra John C. Roos 1950-4-22 4747 Riverside Pigeon Pass. 457 Comment
  UCR24320  Eriogonum plumatella John C. Roos 1943-10-17 2742 Riverside Sonoran (Colorado) Desert, Dry Morongo Wash 671 Comment
  UCR24325  Eriogonum wrightii var. nodosum John C. Roos 1943-10-16 2741 Riverside Southern Mojave Desert, Falcon Flats, Little San Bernardino Mtns 1524 Comment
  UCR24336  Gilia filiformis John C. Roos 1958-3-15 s.n. Riverside Sonoran (Colorado) Desert, 3 mi. SE of Desert Center, Chuckwalla Mtns. Comment
  UCR24354  Ambrosia acanthicarpa John C. Roos 1965-9-26 s.n. Riverside San Jacinto Mtns, Hemet Valley 518 Comment
  UCR25065  Cyperus erythrorhizos John C. Roos 1951-9-25 5249 Riverside Riverside, Fairmount Park 259 Comment
  UCR25196  Baccharis brachyphylla John C. Roos 1950-12-2 5028 Riverside Sonoran (Colorado) Desert, Eagle Mountains, Munsen ['Monson'] Canyon 1067 Comment
  UCR25310  Trifolium truncatum John C. Roos 1966-3-24 s.n. Riverside Flats west of Hemet Comment
  UCR25362  Linanthus pygmaeus John C. Roos 1952-5-7 5619 Riverside Box Springs Mountains north of Canyon Crest Heights. 488 Comment
  UCR25363  Pellaea mucronata John C. Roos 1952-5-7 5616 Riverside Box Springs Mountains north of Canyon Crest Heights 457 Comment
  UCR25388  Muhlenbergia californica John C. Roos 1937-8-23 467 Riverside San Jacinto Mtns, north base of Mt. San Jacinto, Snow Creek 762 Comment
  UCR25543  Silene gallica John C. Roos 1941-4-19 171 Riverside Peninsular Range, Loma Linda Hills/Box Springs Mtns.; plateau in Reche Canyon 671 Comment
  UCR25621  Muhlenbergia asperifolia John C. Roos 1951-9-25 5257 Riverside City of Riverside, west end of Fairmount Park 259 Comment
  UCR25763  Clarkia epilobioides John C. Roos 1952-5-7 5618 Riverside Box Springs Mountains above Canyon Crest Heights 503 Comment
  UCR25778  Bowlesia incana John C. Roos 1952-4-13 5536 Riverside N side of the Box Springs Mountains 457 Comment
  UCR25788  Nemacladus ramosissimus John C. Roos 1937-7-11 1507 Riverside Box Springs Mtns, Reche Canyon Comment
  UCR25798  Geranium carolinianum John C. Roos 1952-5-7 5620 Riverside Box Springs Mountains above Canyon Crest Heights 503 Comment
  UCR25864  Trifolium gracilentum John C. Roos 1952-4-30 5609 Riverside Peninsular Range, hills between Camp Haan and Riverside 534 Comment
  UCR25941  Pectocarya linearis John C. Roos 1952-2-29 5371 Riverside Reche Canyon 457 Comment
  UCR25944  Draba cuneifolia John C. Roos 1947-3-15 3351 Riverside Sonoran (Colorado) Desert, Santa Rosa Mountains, mouth of Deep Canyon at foot of mtns. 366 Comment
  UCR25950  Lepidium virginicum var. robinsonii John C. Roos 1952-2-29 5367 Riverside San Bernardino Valley, [upper] Reche Canyon 549 Comment
  UCR25970  Plagiobothrys leptocladus John C. Roos 1966-3-24 s.n. Riverside Edgemont Comment
  UCR25980  Cryptantha intermedia John C. Roos 1948-4-24 3807 Riverside Eastern San Bernardino Mtns./Sonoran (Colorado) Desert, Whitewater Wash 549 Comment
  UCR26079  Baccharis brachyphylla John C. Roos 1946-9-14 3008 Riverside Santa Rosa Mtns, Dos Palmas Spring, east of Asbestos Mountain 1070 Comment
  UCR26172  Linaria canadensis John C. Roos 1947-3-15 3346 Riverside San Jacinto Valley, Valle Vista, east of Hemet 549 Comment
  UCR26173  Castilleja minor subsp. spiralis John C. Roos 1948-4-24 3808 Riverside Eastern San Bernardino Mtns./Sonoran (Colorado) Desert, Whitewater Wash 549 Comment
  UCR26182  Salix exigua John C. Roos 1947-2-15 3244 Riverside Sonoran (Colorado) Desert, Lost Palms Canyon, south face of Eagle Mtns., west of Hayfield Dry Lake 997 Comment
  UCR26196  Phlox austromontana John C. Roos 1946-8-27 2922 Riverside Peninsular Range, Santa Rosa Mtns 2287 Comment
  UCR26236  Scutellaria siphocampyloides John C. Roos 1948-6-19 3881 Riverside San Jacinto Mtns., ridge north of Idyllwild 1829 Comment
  UCR26240  Salvia pachyphylla John C. Roos 1946-8-27 2914 Riverside Peninsular Range, Santa Rosa Mtns 2287 Comment
  UCR26265  Eriochloa contracta John C. Roos 1963-8-10 s.n. Riverside Sonoran (Colorado) Desert, Colorado River Valley, Blythe 82 Comment
  UCR26281  Ammannia robusta John C. Roos 1952-5-16 5672 Riverside Perris-Aguanga Basin region, San Jacinto River bottomlands, 1 mi. SE of Perris. 427 Comment
  UCR26284  Hordeum intercedens John C. Roos 1952-4-23 5571 Riverside Perris-Aguanga Basin region, 1 mi SE of Perris 427 Comment
  UCR26289  Aristida purpurea var. nealleyi John C. Roos 1951-10-19 5325 Riverside Badlands at Old Jackrabbit Trail 610 Comment
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Mar 20 2011
  UCR26309  Zannichellia palustris John C. Roos 1937-5-10 508 Riverside Lake Elsinore Comment
  UCR26326  Schismus barbatus John C. Roos 1940-3-3 912 Riverside Sonoran (Colorado) Desert, around Palm Springs 183 Comment
  UCR26330  Triticum aestivum John C. Roos 1966-4-29 s.n. Riverside Winchester 457 Comment
  UCR30540  Setaria verticillata John C. Roos 1952-5-14 5660 Riverside San Bernardino Valley, Riverside, corner of Iowa Avenue and 8th Street 305 Comment
  UCR30551  Echinodorus berteroi John C. Roos 1937-6-7 2236 Riverside San Jacinto River Valley, Foot of Jackrabbit Trail. [N of San Jacinto] Comment
  UCR30565  Filago californica John C. Roos 1950-5-6 4786 Riverside Peninsular Range; Santa Ana Mtns., Head of Hagador Canyon, south of Corona 1037 Comment
  UCR30584  Dalea mollis John C. Roos 1965-10-17 s.n. Riverside Sonoran (Colorado) Desert, roadside 20 miles west of Blythe 120 Comment
  UCR30589  Rhus ovata John C. Roos 1948-5-29 3872 Riverside San Bernardino Mtns., Whitewater Canyon 856 Comment
  UCSB37348  Rubus parviflorus Roos, John 1965-7-3 Riverside Dark Canyon, San Jacinto Mtns Comment
  UCSB37379  Aphanes occidentalis Roos, John 1950-4-22 Riverside hills N.E. of the summit of Reche Canyon 822 Comment
  UCSB37795  Aristida purpurea Roos, John 1965-9-26 Riverside Palm Springs 121 Comment
  UCSB37815  Heterotheca sessiliflora subsp. echioides Roos, John 1965-9-16 Riverside On State St. near Florida St., Hemet Comment
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Feb 27 2007
  UCSB37838  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
  UCSB40899  Polypogon monspeliensis Roos, John 1939-5-13 Riverside La Sierra Comment
  UCSB41543  Physalis acutifolia Roos, John 1965-9-5 Riverside Blythe Comment
  UCSB42113  Eremothera chamaenerioides Roos, John 1966-3-26 Riverside 2.5 miles S.E. of Desert Center, Chuckwalla Mtns. Comment
  UCSB42164  Eschscholzia parishii Roos, John 1966-3-26 Riverside 2 miles S.E. of Desert Center Comment
  UCSB42176  Marah macrocarpa Roos, John 1966-4-23 Riverside Santa Ana Mtns., S of Corona Comment
  UCSB42283  Bouteloua barbata Roos, John 1965-9-5 Riverside 10 mi W of Blythe Comment
  UCSB45547  Astragalus insularis var. harwoodii Roos, John 1958-3-15 Riverside Chuckwalla Mtns., 3 miles SE of Desert Center Comment
  UCSB45553  Trifolium depauperatum var. amplectens Roos, John 1966-3-24 Riverside Flats west of Hemet Comment
  UCSB45566  Melica frutescens Roos, John 1948-5-1 Riverside Whitewater 518 Comment
  UCSB45571  Gastridium phleoides Roos, John 1939-5-27 Riverside Reche Canyon 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
  UCSB45608  Hordeum intercedens Roos, John 1952-4-23 Riverside 1 mile southeast of Perris 426 Comment
  UCSB45613  Aristida purpurea John C. Roos 1966-4-26 Riverside collected in hills between March AFB and Lakeview March AFB and Lakeview Comment
  UCSB51278  Imperata brevifolia John C. Roos 1965-6-23 Riverside collected in Palm Springs Palm Springs Comment
  UCSB51405  Sporobolus cryptandrus Roos, John 1965-8-15 Riverside Along a roadside in Gilman Hot Springs Comment
  POM266275  Bromus berteroanus J. C. Roos 1942-5-2 1120 Riverside Colorado Desert. Comment
  RSA0023313  Spergularia bocconi J. C. Roos 1966-3-13 s.n. Riverside Winchester. Comment
  RSA0028762  Plagiobothrys tenellus J. C. Roos 1952-4-29 5594 Riverside Reche Canyon 457 Comment
  RSA0030791  Cordylanthus rigidus subsp. setiger J. C. Roos 1965-8-18 s.n. Riverside Thomas Valley, San Jacinto Mtns. Comment
  RSA0037327  Camissonia claviformis John C. Roos 1966-5-20 s.n. Riverside 2 miles S.E. of Desert Center. Comment
  RSA0037331  Astragalus insularis var. harwoodii John C. Roos 1958-3-15 s.n. Riverside Chuckwalla Mtns., 3 miles SE of Desert Center. Comment
  RSA0057843  Urtica gracilis var. holosericea John C. Roos 1951-9-25 5286 Riverside West end of Fairmount Park, Riverside. 259 Comment
  RSA0098431  Spergularia macrotheca var. leucantha J. C. Roos 1937-5-9 639 Riverside La Sierra. Comment
  RSA444802  Schedonorus arundinaceus J. C. Roos 1950-4-15 4743 Riverside West end of Fairmount Park Lake Comment
  RSA449948  Senecio vulgaris J. C. Roos 1967-2-7 s.n. Riverside City of Hemet. Comment
  RSA450452  Eragrostis curvula J. C. Roos 1965-9-16 s.n. Riverside Lakeview Comment
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Sep 19 2018
  RSA457391  Poa annua J. C. Roos 1965-10-7 s.n. Riverside Hemet, in the lawn with Cotula australis. Comment
  RSA592424  Atriplex rosea J. C. Roos 1965-8-4 s.n. Riverside Arlington Comment
  RSA78373  Malva parviflora J. C. Roos, L. Roos 1951-5-5 5034 Riverside Fairmont Park 274 Comment
  RSA92460  Lotus strigosus J. C. Roos, L. Roos 1954-5-15 6120 Riverside Summit of Reche Canyon 732 Comment
  RSA92724  Loeflingia squarrosa J. C. Roos 1952-5-14 5664 Riverside 2 mi. northwest of Perris. 503 Comment
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May 21 2011
  RSA92749  Lasthenia gracilis J. C. Roos 1952-5-21 5706 Riverside San Jacinto River bottomland 1.5 miles southeast of Perris 426 Comment
  SEINET13947224 Image available Salazaria mexicana J. C. Roos 1965-1 s.n. Riverside Dos Palmas Springs, Santa Rosa Mountains Comment
  CAS-BOT-BC102142  Arida carnosa J. C. Roos 1956-8-2 6591 San Bernardino North side of Highway 99, 0.2 miles west of Waterman Ave, San Bernardino Valley Comment
  CAS-BOT-BC102148  Arida carnosa J. C. Roos 1956-8-2 6591 San Bernardino North side of Highway 99, 0.2 miles west of Waterman Ave., San Bernardino Valley Comment
  CAS-BOT-BC105552  Populus trichocarpa J. C. Roos 1965-6-26 s.n. San Bernardino Upper Santa Ana Basin near Fish creek, San Bernardino Mtns. Comment
  CAS-BOT-BC106237  Brickellia californica J. C. Roos 1965-9-11 s.n. San Bernardino San Bernardino Mountains - Mill Creek Comment
  CAS-BOT-BC137484  Aristida purpurea var. wrightii John Roos; Lucille Roos 1952-5-11 5655 San Bernardino Scott's Canyon 2.5 miles southeast of Loma Linda. 426 Comment
  CAS-BOT-BC172566  Clarkia purpurea subsp. purpurea J. C. Roos 1965-6-12 s.n. San Bernardino Igo's near Mountain Home Village in Mill Creek Canyon, San Bernardino Mtns. Comment
  CAS-BOT-BC177316  Astragalus acutirostris John Roos; Lucille Roos 1952-5-10 5631 San Bernardino Kramer Hills, [Mohave] Mojave Desert 853 Comment
  CAS-BOT-BC186422  Atriplex torreyi J. C. Roos; A. R. Roos 1950-8-8 4931 San Bernardino Rabbit Springs, Lucerne Valley, Mohave [Mojave] Desert 883 Comment
  CAS-BOT-BC194104  Astragalus pomonensis J. C. Roos 1965-6-27 s.n. San Bernardino Loma Linda 304 Comment
  CAS-BOT-BC197183  Echinochloa crus-galli J. C. Roos 1965-7-4 s.n. San Bernardino Loma Linda 304 Comment
  CAS-BOT-BC199962  Vulpia microstachys var. ciliata John Roos; Lucille Roos 1951-6-9 5060 San Bernardino San Bernardino Mts. 1767 Comment
  CAS-BOT-BC216704  Lupinus excubitus var. excubitus J. C. Roos; A. C. Sanders 1965-7-18 s.n. San Bernardino Along Bear Valley, San Bernardino Mountains Comment
  CAS-BOT-BC262583  Muhlenbergia arsenei J. C. Roos; A. R. Roos 1950-8-5 4896 San Bernardino 1 1/2 miles SW of Coliseum Mine, Clark Mts., Mojave Desert 1737 Comment
  CAS-BOT-BC262584  Muhlenbergia arsenei J. C. Roos; A. R. Roos 1950-8-5 4896 San Bernardino 1 1/2 miles SW of Coliseum Mine, Clark Mts., Mojave Desert 1737 Comment
  CAS-BOT-BC265555  Eriogonum parishii J. C. Roos 1965-10-2 s.n. San Bernardino Camp Angelus, San Bernardino Mtns. Comment
  CAS-BOT-BC294858  Erigeron breweri var. porphyreticus John Roos; Lucille Roos 1949-6-27 4508 San Bernardino N. side Kingston Mts., NE San Bernardino Co. 1828 Comment
  CAS-BOT-BC298557  Erigeron divergens J. C. Roos 1965-6-26 s.n. San Bernardino Upper Santa Ana Canyon, near the Heart Bar area, San Bernardino Mtns. 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-BC327407  Senecio astephanus John Roos; Lucille Roos 1952-6-14 5771 San Bernardino Mill Creek south of Mill Creek Public Camp, San Bernardino Mountains 1158 Comment
  CAS-BOT-BC328143  Sanvitalia abertii J. C. Roos; A. R. Roos 1950-8-5 4893 San Bernardino 1 mile south of Coliseum Mine, Clark Mountains, eastern Mohave Desert 1645 Comment
  CAS-BOT-BC328144  Sanvitalia abertii John Roos 1950-9-1 4954 San Bernardino Near Coliseum Mine, Clark Mountains, eastern Mohave Desert 1645 Comment
  CAS-BOT-BC328146  Sanvitalia abertii J. C. Roos; A. R. Roos 1950-8-5 4893 San Bernardino 1 mile south of Coliseum Mine, Clark Mountains, eastern Mohave Desert 1645 Comment
  CAS-BOT-BC328929  Tetradymia argyraea J. C. Roos 1950-9-2 4965 San Bernardino 1 mile SE of Coliseum Mine, Clark Mtns., Mojave Desert 1615 Comment
  CAS-BOT-BC329928  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-BC340046  Tetradymia comosa J. C. Roos 1965-6-27 s.n. San Bernardino Loma Linda Hills 304 Comment
  CAS-BOT-BC375126  Stephanomeria cichoriacea J. C. Roos 1965-10-2 s.n. San Bernardino East Fork Mtn Home Canyon, San Bernardino Mtns. Comment
  CAS-BOT-BC38171  Caulanthus amplexicaulis J. C. Roos 1947-6-21 3690 San Bernardino San Bernardino Mountains. Roadside near Big Bear Lake. 1889 Comment
  CAS-BOT-BC422177  Rumex californicus J. C. Roos 1965-7-17 s.n. San Bernardino Dry Lake, San Bernardino Mtns. Comment
  CAS-BOT-BC424353  Heuchera rubescens J. C. Roos 1965-7-31 119 San Bernardino South Fork, on a rocky north-facing bank with Sedum niveum. San Bernardino Mtns. 2286 Comment
  CAS-BOT-BC63029  Frangula californica subsp. californica J. C. Roos 1965-6-6 s.n. San Bernardino Mill Creek near Fallsvale, San Bernardino Mts. Comment
  CAS-BOT-BC90586  Artemisia dracunculus J. C. Roos 1965-10-2 s.n. San Bernardino Camp Angelus, San Bernardino Mtns. Comment
  CAS-BOT-BC90844  Artemisia nova John C. Roos 1946-8-29 2768 San Bernardino Eagle Point, Bear Valley, San Bernardino Mts. 2042 Comment
  CAS-BOT-BC97136  Artemisia rothrockii John C. Roos 1946-8-29 2777 San Bernardino east end Bear Valley, San Bernardino Mts. 2072 Comment
  CLARK-A1528-1014  Leptodactylon californicum John C. Roos 1941-5-13 133 San Bernardino San Bernardino Mountains 761 Comment
  CLARK-A1528-1016  Veronica serpyllifolia subsp. humifusa John C. Roos 1937-7-21 San Bernardino San Bernardino Mountains 1920 Comment
  CLARK-A1528-1021  Sidalcea pedata John C. Roos 1937-7-29 1980 San Bernardino San Bernardino Mountains 2316 Comment
  CLARK-A1528-1035  Trifolium wormskioldii John C. Roos 1941-4-26 144 San Bernardino San Bernardino 320 Comment
  CLARK-A1528-1037  Stellaria longipes John C. Roos 1937-7-21 2004 San Bernardino San Bernardino Mountains 1920 Comment
  CLARK-A1528-1059  Artemisia ludoviciana John C. Roos 1937-7-27 1970 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-1070  Madia minima John C. Roos 1937-6-5 1470 San Bernardino San Bernardino Mountains 1523 Comment
  CLARK-A1528-111  Amaranthus hybridus John C. Roos 1951-9-19 5222 San Bernardino Loma Linda 335 Comment
  CLARK-A1528-1133  Suaeda torreyana John C. Roos 1937-7-14 393 San Bernardino San Bernardino 304 Comment
  CLARK-A1528-1140  Elatine brachysperma John C. Roos 1937-7-18 397 San Bernardino San Antonio Canyon Comment
  CLARK-A1528-1175  Quercus wislizeni var. frutescens John C. Roos 1946-9-1 2979 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-1195  Suaeda torreyana John C. Roos 1940-8-22 245 San Bernardino Loma Linda Comment
  CLARK-A1528-1197  Grayia spinosa John C. Roos 1941-4-5 193 San Bernardino Dry Morongo Canyon Comment
  CLARK-A1528-1218  Penstemon heterophyllus subsp. australis John C. Roos 1937-6-2 1988 San Bernardino Yucaipa Comment
  CLARK-A1528-1261  Glyceria elata John C. Roos 1948-7-10 3921 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-1292  Claytonia spathulata var. tenuifolia John C. Roos 1937-6-5 1474 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-1307  Pterospora andromedea John C. Roos 1937-7-20 1993 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-1323  Prunella vulgaris subsp. vulgaris John C. Roos 1959-7-2 San Bernardino Loma Linda 365 Comment
  CLARK-A1528-1324  Prunella vulgaris subsp. lanceolata John C. Roos 1937-7-21 2007 San Bernardino San Bernardino Mountains 1920 Comment
  CLARK-A1528-1348  Salix scouleriana John C. Roos 1947-4-12 3442 San Bernardino San Bernardino Mountains 2163 Comment
  CLARK-A1528-1349  Populus trichocarpa var. ingrata John C. Roos 1948-7-10 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-1391  Amaranthus albus John C. Roos 1965-7-4 San Bernardino Loma Linda 304 Comment
  CLARK-A1528-1402  Amaranthus hybridus John C. Roos 1954-11-21 6257 San Bernardino Loma Linda 335 Comment
  CLARK-A1528-1408  Amaranthus torreyi John C. Roos 1950-8-5 4905 San Bernardino Clark Mountain Range 1706 Comment
  CLARK-A1528-1409  Amaranthus torreyi John C. Roos 1950-9-1 4958 San Bernardino Clark Mountains 1615 Comment
  CLARK-A1528-1458  Tauschia parishii John C. Roos 1947-6-27 3725 San Bernardino San Bernardino Mountains|South Fork 2194 Comment
  CLARK-A1528-1459  Sphenosciadium capitellatum John C. Roos 1937-7-22 1680 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-1473  Apocynum androsaemifolium John C. Roos 1947-8-9 3738 San Bernardino San Bernardino Mountains 2072 Comment
  CLARK-A1528-1474  Apocynum androsaemifolium John C. Roos 1937-7-27 2355 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-1480  Apocynum pumilum John C. Roos 1937-6-5 1702 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-1494  Agave utahensis var. nevadensis John C. Roos 1949-5-29 4368 San Bernardino Clark Mountains 1523 Comment
  CLARK-A1528-1517  Bloomeria crocea John C. Roos 1965-6-29 San Bernardino Loma Linda Comment
  CLARK-A1528-1536  Ambrosia eriocentra John C. Roos 1949-5-29 4370 San Bernardino Clark Mountain 1523 Comment
  CLARK-A1528-1551  Antennaria rosea John C. Roos 1965-6-26 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-1560  Artemisia californica John C. Roos 1966-1-2 San Bernardino Loma Linda Comment
  CLARK-A1528-1575  Artemisia dracunculus John C. Roos 1965-10-2 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-1609  Aster hesperius John C. Roos 1946-10-2 3104 San Bernardino Comment
  CLARK-A1528-1716  Chrysothamnus nauseosus subsp. consimilis John C. Roos 1941-10-18 857 San Bernardino San Bernardino Mountains 2621 Comment
  CLARK-A1528-1721  Chrysothamnus nauseosus John C. Roos 1950-10-11 5002 San Bernardino Cajon Pass 975 Comment
  CLARK-A1528-1735  Chrysothamnus parryi subsp. imulus John C. Roos 1949-7-23 4582 San Bernardino San Bernardino Mountains 2194 Comment
  CLARK-A1528-1737  Chrysothamnus parryi subsp. imulus John C. Roos 1951-7-28 5071 San Bernardino San Bernardino Mountains 2072 Comment
  CLARK-A1528-1793  Gnaphalium microcephalum John C. Roos 1961-10-28 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-1820  Erigeron divergens John C. Roos 1965-7-18 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-1832  Eriophyllum ambiguum John C. Roos 1937-4-26 2112 San Bernardino Providence Mountains Comment
  CLARK-A1528-1838  Eriophyllum lanatum var. obovatum John C. Roos 1965-7-18 San Bernardino San Bernardino Mountains 1837 Comment
  CLARK-A1528-1842  Filago depressa John C. Roos 1959-3-28 San Bernardino Mojave Desert Comment
  CLARK-A1528-1871  Haplopappus acradenius John C. Roos 1946-9-2 2986 San Bernardino San Timoteo Canyon Comment
  CLARK-A1528-1936  Helenium bigelovii John C. Roos 1965-9-11 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-1960  Hymenoclea monogyra John C. Roos 1947-10-11 3747 San Bernardino Fontana Power Plant Comment
  CLARK-A1528-1985  Lepidospartum latisquamum John C. Roos 1968-10-5 San Bernardino Comment
  CLARK-A1528-1995  Machaeranthera canescens John C. Roos 1937-7-22 1163 San Bernardino San Gorgonio Wilderness Comment
  CLARK-A1528-2077  Sanvitalia abertii John C. Roos 1950-9-1 4954 San Bernardino Clark Mountain 1645 Comment
  CLARK-A1528-2109  Stephanomeria parryi John C. Roos 1947-6-23 4465 San Bernardino Lanfair Valley Comment
  CLARK-A1528-2180  Viguiera deltoidea var. parishii John C. Roos 1949-6-26 4496 San Bernardino Clark Mountain 1462 Comment
  CLARK-A1528-2183  Gnaphalium beneolens John C. Roos 1947-8-23 3741 San Bernardino Loma Linda 426 Comment
  CLARK-A1528-2194  Heterotheca grandiflora John C. Roos 1940-9-1 232 San Bernardino Cajon Pass 701 Comment
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Jul 17 2014
  CLARK-A1528-2224  Cryptantha micrantha subsp. lepida John C. Roos 1965-6-26 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-A1528-2312  Draba corrugata John C. Roos 1965-7-17 San Bernardino San Bernardino Mountains 2590 Comment
  CLARK-A1528-2327  Lepidium perfoliatum John C. Roos 1949-4-30 4259 San Bernardino Lucerne Valley Comment
  CLARK-A1528-2350  Thelypodium lasiophyllum John C. Roos 1947-3-8 3315 San Bernardino San Bernardino Mountains 1005 Comment
  CLARK-A1528-2398  Acer macrophyllum John C. Roos 1965-6-6 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-2401  Amaranthus deflexus John C. Roos 1965-6-20 San Bernardino Loma Linda Comment
  CLARK-A1528-2436  Bowlesia incana John C. Roos 1941-5-6 156 San Bernardino Loma Linda Hills Comment
  CLARK-A1528-2440  Arenaria confusa John C. Roos 1937-7-20 380 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-2451  Cerastium vulgatum John C. Roos 1965-7-31 San Bernardino San Bernardino Mountains 2285 Comment
  CLARK-A1528-2464  Silene conoidea John C. Roos 1967-4-30 San Bernardino Loma Linda Comment
  CLARK-A1528-2485  Stellaria jamesiana John C. Roos 1950-6-24 4839 San Bernardino San Bernardino Mountains 2224 Comment
  CLARK-A1528-2508  Atriplex torreyi John C. Roos, Alfred R. Roos 1950-8-8 4930 San Bernardino Mojave Desert 792 Comment
  CLARK-A1528-2509  Atriplex torreyi John C. Roos 1950-8-8 San Bernardino Oro Grande Comment
  CLARK-A1528-2510  Atriplex torreyi John C. Roos 1950-6-24 4845 San Bernardino Mojave Desert 883 Comment
  CLARK-A1528-2513  Atriplex elegans subsp. fasciculata John C. Roos 1937-8-27 9076 San Bernardino Needles Comment
  CLARK-A1528-2558  Chenopodium californicum John C. Roos 1952-4-16 5560 San Bernardino Pigeon Pass 365 Comment
  CLARK-A1528-2565  Chenopodium incanum John C. Roos 1937-8-25 1198 San Bernardino Barnwell Comment
  CLARK-A1528-2573  Chenopodium pumilio John C. Roos 1965-7-4 San Bernardino Loma Linda Comment
  CLARK-A1528-2630  Silene verecunda subsp. platyota John C. Roos 1936-7-30 950 San Bernardino San Bernardino Mountains 3352 Comment
  CLARK-A1528-2677  Arctostaphylos patula John C. Roos 1968-9-21 San Bernardino San Bernardino Mountains 2438 Comment
  CLARK-A1528-2740  Astragalus douglasii John C. Roos 1965-7-18 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-2764  Dalea arborescens John C. Roos 1947-4-18 3444 San Bernardino Barstow Comment
  CLARK-A1528-2892  Trifolium variegatum John C. Roos 1937-5-28 1688 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-2909  Quercus wislizeni var. frutescens John C. Roos 1940-5-11 850 San Bernardino San Bernardino Mountains 1219 Comment
  CLARK-A1528-2967  Eriodictyon angustifolium John C. Roos 1949-6-20 4410 San Bernardino New York Mountains 1615 Comment
  CLARK-A1528-2976  Hesperochiron californicus John C. Roos 1951-6-11 4269 San Bernardino Lucerne Valley 883 Comment
  CLARK-A1528-3051  Pyrola picta John C. Roos 1941-9-9 78 San Bernardino San Bernardino Mountains 2224 Comment
  CLARK-A1528-3060  Amelanchier utahensis John C. Roos 1949-5-28 4349 San Bernardino Clark Mountain 1889 Comment
  CLARK-A1528-3064  Horkelia elata John C. Roos 1943-8-1 2696 San Bernardino San Bernardino County Comment
  CLARK-A1528-3077  Triteleia laxa John C. Roos, Ralph Gustin 1948-4-27 4/ 27 /48 San Bernardino Loma Linda Comment
  CLARK-A1528-3097  Hedeoma nana subsp. californica John C. Roos 1949-6-21 4447 San Bernardino New York Mountains 1737 Comment
  CLARK-A1528-3121  Salvia mohavensis John C. Roos 1943-5-23 2684 San Bernardino Little San Bernardino Mountains Comment
  CLARK-A1528-3135  Agastache urticifolia John C. Roos 1946-8-31 2990 San Bernardino Oak Glen Comment
  CLARK-A1528-3137  Molucella laevis John C. Roos 1965-6-20 San Bernardino Loma Linda Comment
  CLARK-A1528-3159  Mentzelia albicaulis John C. Roos 1937-4-23 545 San Bernardino Twentynine Palms Comment
  CLARK-A1528-3183  Asparagus officinalis John C. Roos 1965-9-19 San Bernardino Loma Linda 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-A1528-3232  Malacothamnus densiflorus John C. Roos 1960-6-5 San Bernardino Santa Ana Mountains 1066 Comment
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Dec 27 2017
  CLARK-A1528-3238  Modiola caroliniana John C. Roos 1956-5-20 6582 San Bernardino Loma Linda Comment
  CLARK-A1528-3304  Ludwigia repens John C. Roos 1965-9-15 San Bernardino Victorville Comment
  CLARK-A1528-3331  Gaura coccinea John C. Roos 1949-5-28 4340 San Bernardino Clark Mountain Comment
  CLARK-A1528-3341  Epilobium adenocaulon var. holosericeum John C. Roos 1937-7-31 967 San Bernardino San Bernardino 304 Comment
  CLARK-A1528-3353  Zauschneria californica subsp. latifolia John C. Roos 1936-8-15 571 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-3379  Epipactis gigantea John C. Roos 1965-9-11 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-3422  Plantago major John C. Roos 1950-5-13 4806 San Bernardino Rabbit Springs 883 Comment
  CLARK-A1528-3443  Linanthus breviculus John C. Roos 1937-5-31 2038 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-3444  Microsteris gracilis John C. Roos 1966-4-9 San Bernardino San Bernardino Mountains 2057 Comment
  CLARK-A1528-3464  Linanthus breviculus John C. Roos 1965-6-26 San Bernardino Fish Creek Comment
  CLARK-A1528-3485  Linanthus parryae John C. Roos, Lucille Roos 1952-5-10 5645 San Bernardino Adelanto 914 Comment
  CLARK-A1528-3514  Gilia sinuata John C. Roos, Lucille Roos 1949-6-27 4516 San Bernardino Kingston Mountains 2072 Comment
  CLARK-A1528-3558  Pinus monophylla John C. Roos 1948-9-18 4072 San Bernardino Clark Mountain 1737 Comment
  CLARK-A1528-3570  Cheilanthes wootonii John C. Roos 1949-6-22 5500 San Bernardino New York Mountains 1676 Comment
  CLARK-A1528-3584  Cheilanthes feei John C. Roos 1937-4-26 1800 San Bernardino Mitchell Caverns Comment
  CLARK-A1528-3596  Polygala acanthoclada John C. Roos 1949-6-20 4420 San Bernardino New York Mountains Comment
  CLARK-A1528-3601  Chorizanthe leptoceras John C. Roos 1950-6-3 4822 San Bernardino Cajon Canyon 761 Comment
  CLARK-A1528-3640  Eriogonum fasciculatum subsp. flavoviride John C. Roos 1937-4-24 1810 San Bernardino Sheep Hole Mountains Comment
  CLARK-A1528-3651  Eriogonum heermannii subsp. argense John C. Roos 1946-9-21 3078 San Bernardino 1523 Comment
  CLARK-A1528-3685  Eriogonum parishii John C. Roos 1940-8-10 1844 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-3687  Eriogonum parishii John C. Roos 1937-7-20 2413 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-3740  Eriogonum heermannii var. argense John C. Roos, R. Weatherby 1949-9-2 3575 San Bernardino Kingston Range 1920-2073 Comment
  CLARK-A1528-3760  Oxytheca parishii John C. Roos, Lucille Roos 1950-9-23 4991 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-3785  Polygonum douglasii John C. Roos 1965-7-18 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-3787  Polygonum hydropiperoides John C. Roos, Lucille Roos 1952-6-27 5799 San Bernardino San Bernardino 304 Comment
  CLARK-A1528-3795  Rumex acetosella John C. Roos 1937-6-5 1471 San Bernardino San Bernardino Mountains 1523 Comment
  CLARK-A1528-3818  Calyptridium umbellatum John C. Roos 1946-9-4 2961 San Bernardino Mount San Gorgonio 3444 Comment
  CLARK-A1528-3819  Calyptridium umbellatum John C. Roos 1937-7-17 2416 San Bernardino San Gabriel Mountains 2682 Comment
  CLARK-A1528-3850  Clematis ligusticifolia John C. Roos 1937-7-31 540 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-3889  Ceanothus greggii John C. Roos 1946-10-5 3118 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-3892  Ceanothus greggii John C. Roos 1949-6-20 4421 San Bernardino New York Mountains 1828 Comment
  CLARK-A1528-3983  Cercocarpus ledifolius John C. Roos 1965-6-6 San Bernardino Mill Creek Comment
  CLARK-A1528-3990  Fallugia paradoxa John C. Roos 1937-4-26 2113 San Bernardino Providence Mountains Comment
  CLARK-A1528-3993  Geum macrophyllum John C. Roos 1937-7-21 2364 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4002  Horkelia wilderae John C. Roos 1941-5-31 Roos No. 94 San Bernardino San Bernardino Mountains 2133 Comment
  CLARK-A1528-4008  Cercocarpus intricatus John C. Roos 1948-9-18 4067 San Bernardino Clark Mountain Range 1706 Comment
  CLARK-A1528-4010  Heteromeles arbutifolia John C. Roos 1965-12-11 San Bernardino San Bernardino Mountains 1097 Comment
  CLARK-A1528-4047  Sibbaldia procumbens John C. Roos 1941-8-27 29 San Bernardino Mount San Gorgonio 3047 Comment
  CLARK-A1528-4052  Salix exigua John C. Roos 1937-4-27 619 San Bernardino Colorado River Comment
  CLARK-A1528-4058  Salix lasiandra var. lancifolia John C. Roos 1952-3-24 5410 San Bernardino Santa Ana River Comment
  CLARK-A1528-4059  Salix scouleriana John C. Roos 1939-5-26 723 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4067  Populus tremuloides John C. Roos 1965-6-26 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4074  Selaginella asprella John C. Roos 1937-5-9 2090 San Bernardino Oak Glen Comment
  CLARK-A1528-4090  Heuchera abramsii John C. Roos 1941-8-27 40 San Bernardino Greyback Ridge Comment
  CLARK-A1528-4122  Ribes cereum John C. Roos 1941-5-30 100 San Bernardino San Bernardino Mountains 2285 Comment
  CLARK-A1528-4128  Ribes cereum John C. Roos 1965-6-26 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4136  Ribes montigenum John C. Roos 1946-9-4 2949 San Bernardino San Gorgonio Peak 3413 Comment
  CLARK-A1528-4143  Ribes roezlii John C. Roos 1940-5-11 844 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4144  Ribes roezlii John C. Roos 1939-5-26 711 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4146  Ribes roezlii John C. Roos 1965-6-6 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4164  Antirrhinum kingii John C. Roos 1949-5-29 3531 San Bernardino Clark Mountain 1767 Comment
  CLARK-A1528-4175  Castilleja cinerea John C. Roos 1938-8-14 581 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4250  Mimulus guttatus John C. Roos 1943-4-9 2614 San Bernardino San Bernardino Comment
  CLARK-A1528-4253  Mimulus guttatus John C. Roos 1949-6-23 4472 San Bernardino Mojave Desert 1462 Comment
  CLARK-A1528-4256  Mimulus johnstonii John C. Roos 1937-7-15 2423 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4279  Keckiella cordifolia John C. Roos 1948-6-26 3894 San Bernardino San Bernardino Mountains 761 Comment
  CLARK-A1528-4292  Penstemon bridgesii John C. Roos 1965-7-18 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4338  Veronica persica John C. Roos 1947-2-8 3231 San Bernardino San Bernardino County Hospital Comment
  CLARK-A1528-4339  Chamaesaracha coronopus John C. Roos 1949-6-22 3548 San Bernardino New York Mountains Comment
  CLARK-A1528-4371  Solanum nigrum John C. Roos 1949-6-26 4500 San Bernardino Kingston Mountains 1450 Comment
  CLARK-A1528-4409  Viola douglasii John C. Roos 1937-5-15 1188 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4410  Viola macloskeyi John C. Roos 1937-7-22 2369 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-A1528-4414  Viola purpurea John C. Roos 1966-5-7 San Bernardino San Bernardino Mountains 1828 Comment
  CLARK-A1528-443  Ricinus communis John C. Roos 1951-10-4 5317 San Bernardino San Bernardino 320 Comment
  CLARK-A1528-4470  Aristida glauca John C. Roos 1937-4-27 554 San Bernardino Mojave Desert Comment
  CLARK-A1528-4483  Aristida purpurea John C. Roos 1950-8-4 San Bernardino Clark Mountain Comment
  CLARK-A1528-4496  Avena fatua Alfred R. Roos 1938-2-13 San Bernardino Loma Linda Comment
  CLARK-A1528-4522  Bouteloua eriopoda John C. Roos 1950-8-4 San Bernardino Clark Mountain Comment
  CLARK-A1528-4530  Bromus arenarius John C. Roos 1949-6-22 3547 San Bernardino New York Mountains 1737 Comment
  CLARK-A1528-4543  Bromus marginatus John C. Roos 1965-6-26 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4566  Bromus willdenowii John C. Roos 1950-6-9 4828 San Bernardino San Bernardino Comment
  CLARK-A1528-4577  Dactylis glomerata John C. Roos 1938-6-4 473 San Bernardino Loma Linda Comment
  CLARK-A1528-4609  Elymus triticoides John C. Roos 1965-7-18 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4610  Elymus triticoides John C. Roos 1965-6-16 San Bernardino Victorville 914 Comment
  CLARK-A1528-4645  Festuca brachyphylla John C. Roos 1941-8-27 30 San Bernardino Mount San Gorgonio 3047 Comment
  CLARK-A1528-4647  Festuca brachyphylla John C. Roos 1946-9-4 2958 San Bernardino San Bernardino Mountains 2743 Comment
  CLARK-A1528-4683  Holcus lanatus John C. Roos 1940-8-17 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4690  Hordeum jubatum John C. Roos 1965-7-18 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4702  Koeleria macrantha John C. Roos 1937-5-28 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4708  Leersia oryzoides John C. Roos 1951-10-14 5322 San Bernardino San Bernardino 304 Comment
  CLARK-A1528-4710  Leptochloa fascicularis John C. Roos 1946-9-21 3072 San Bernardino Rabbit Springs 883 Comment
  CLARK-A1528-4714  Leptochloa uninervia John C. Roos 1965-6-21 San Bernardino Loma Linda 304 Comment
  CLARK-A1528-4745  Muhlenbergia andina John C. Roos 1962-9-29 San Bernardino San Bernardino Mountains 2042 Comment
  CLARK-A1528-4747  Muhlenbergia asperifolia John C. Roos 1938-8-14 580 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4758  Muhlenbergia microsperma John C. Roos 1940-5-20 895 San Bernardino Reche Canyon Comment
  CLARK-A1528-4765  Muhlenbergia rigens John C. Roos 1937-7-25 5187 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4773  Oryzopsis bloomeri John C. Roos, Lucille Roos 1951-7-28 5067 San Bernardino Rathbone Creek 2560 Comment
  CLARK-A1528-4780  Oryzopsis micrantha John C. Roos 1949-6-24 3543 San Bernardino Clark Mountain 1981 Comment
  CLARK-A1528-4786  Panicum miliaceum John C. Roos 1965-9-12 San Bernardino Loma Linda Comment
  CLARK-A1528-4805  Phleum alpinum John C. Roos 1965-7-31 San Bernardino San Bernardino Mountains 2285 Comment
  CLARK-A1528-4807  Phleum pratense John C. Roos 1965-7-18 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4823  Poa fendleriana John C. Roos 1940-5-11 851 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4848  Gnaphalium californicum John C. Roos 1948-6-26 3890 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4849  Cotula australis John C. Roos 1952-2-27 5357 San Bernardino Loma Linda 335 Comment
  CLARK-A1528-4857  Yucca whipplei John C. Roos 1937-4-17 1378 San Bernardino San Timoteo Canyon Comment
  CLARK-A1528-4862  Haplopappus gracilis John C. Roos 1949-6-18 4393 San Bernardino Mountain Pass 1523 Comment
  CLARK-A1528-4871  Quercus wislizeni var. frutescens John C. Roos 1939-6-10 720 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-4881  Arnica chamissonis subsp. foliosa John C. Roos 1937-7-22 1161 San Bernardino Dry Lake Comment
  CLARK-A1528-4922  Cerastium vulgatum John C. Roos 1937-3-8 1303 San Bernardino Loma Linda Comment
  CLARK-A1528-4946  Tragopogon porrifolius John C. Roos 1966-4-28 San Bernardino Calimesa Comment
  CLARK-A1528-4997  Centaurium venustum John C. Roos 1948-6-13 3874 San Bernardino Fontana Comment
  CLARK-A1528-5003  Hieracium horridum John C. Roos 1949-7-4 4541 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-5050  Panicum capillare John C. Roos 1946-9-6 2997 San Bernardino Warm Creek Comment
  CLARK-A1528-5078  Phacelia ramosissima John C. Roos 1947-5-10 3619 San Bernardino San Timoteo Canyon Comment
  CLARK-A1528-5079  Emmenanthe penduliflora John C. Roos 1941-6-5 155 San Bernardino Loma Linda Hills Comment
  CLARK-A1528-5123  Salazaria mexicana John C. Roos 1965-6-1 San Bernardino Adelanto Comment
  CLARK-A1528-5126  Acamptopappus sphaerocephalus John C. Roos 1949-5-14 4302 San Bernardino San Bernardino Mountains 1097 Comment
  CLARK-A1528-5142  Plagiobothrys torreyi John C. Roos 1951-6-9 5062 San Bernardino San Bernardino Mountains 1828 Comment
  CLARK-A1528-5149  Amaranthus hybridus John C. Roos 1954-11-21 6257 San Bernardino Loma Linda 335 Comment
  CLARK-A1528-5157  Populus trichocarpa var. ingrata John C. Roos 1937-7-21 2372 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-5162  Pyrola californica John C. Roos 1965-7-17 San Bernardino San Bernardino Mountains 2621 Comment
  CLARK-A1528-5181  Eriogonum plumatella John C. Roos 1965-7-21 San Bernardino Victorville Comment
  CLARK-A1528-5209  Pityrogramma triangularis John C. Roos 1949-6-27 4521 San Bernardino Kingston Range 1645 Comment
  CLARK-A1528-5210  Pityrogramma triangularis John C. Roos 1949-6-27 4521 San Bernardino Kingston Range 1645 Comment
  CLARK-A1528-5245  Euphorbia setiloba John C. Roos 1937-8-22 626 San Bernardino Rice Comment
  CLARK-A1528-5259  Stipa lettermanii John C. Roos 1952-8-23 5886 San Bernardino Barton Flats 1889 Comment
  CLARK-A1528-5265  Stipa occidentalis John C. Roos 1946-9-15 3039 San Bernardino San Bernardino Mountains 3169 Comment
  CLARK-A1528-5280  Tridens muticus John C. Roos 1949-5-29 3536 San Bernardino Clark Mountain 1737 Comment
  CLARK-A1528-5290  Stipa comata John C. Roos 1947-6-27 3726 San Bernardino San Bernardino Mountains 1981 Comment
  CLARK-A1528-5301  Stipa coronata John C. Roos 1941-7-19 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-5334  Parnassia cirrata John C. Roos 1946-9-4 2972 San Bernardino San Bernardino Mountains 2438 Comment
  CLARK-A1528-5336  Boerhavia torreyana John C. Roos 1950-9-2 4963 San Bernardino Mojave Desert 1615 Comment
  CLARK-A1528-54  Echinochloa colona John C. Roos 1965-9-14 5202 San Bernardino Loma Linda 323 Comment
  CLARK-A1528-5403  Crassula erecta John C. Roos 1947-2-20 3275 San Bernardino Loma Linda Hills Comment
  CLARK-A1528-5441  Calochortus invenustus John C. Roos 1950-6-24 4841 San Bernardino Bear Valley 2224 Comment
  CLARK-A1528-5461  Chrysothamnus nauseosus John C. Roos 1950-10-11 5002 San Bernardino Cajon Pass 975 Comment
  CLARK-A1528-5482  Amaranthus retroflexus Alfred R. Roos 1937-11-24 San Bernardino Bryn Mawr Comment
  CLARK-A1528-5498  Artemisia californica John C. Roos 1966-1-2 San Bernardino Loma Linda Comment
  CLARK-A1528-5523  Hymenoclea salsola John C. Roos 1965-6-7 San Bernardino Victorville Comment
  CLARK-A1528-5548  Stipa coronata var. depauperata John C. Roos 1949-6-27 4517 San Bernardino Kingston Range 2072 Comment
  CLARK-A1528-5549  Stipa lemmonii John C. Roos 1947-7-19 3729 San Bernardino San Bernardino Mountains 2194 Comment
  CLARK-A1528-5581  Eragrostis caroliniana John C. Roos 1937-7-10 446 San Bernardino Loma Linda 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-A1528-5654  Atriplex polycarpa John C. Roos 1937-3-1 San Bernardino Victorville Comment
  CLARK-A1528-5656  Atriplex canescens John C. Roos 1965-7-21 San Bernardino Victorville Comment
  CLARK-A1528-5678  Quercus palmeri John C. Roos 1967-5-20 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-5679  Quercus X morehus John C. Roos 1943-2-28 2591 San Bernardino San Bernardino Mountains 2072 Comment
  CLARK-A1528-5704  Forestiera neomexicana John C. Roos 1946-9-21 3066 San Bernardino Lucerne Valley Comment
  CLARK-A1528-5725  Galium stellatum John C. Roos 1937-4-24 483 San Bernardino Sheephole Mountains Comment
  CLARK-A1528-590  Salvia X bernardina John C. Roos, Lucille Roos 1951-10-3 5314 San Bernardino Loma Linda 320 Comment
  CLARK-A1528-693  Plantago hirtella subsp. galeottiana John C. Roos, Lucille Roos 1951-9-29 5309 San Bernardino San Bernardino 304 Comment
  CLARK-A1528-762  Polygonum punctatum John C. Roos, Lucille Roos 1951-9-11 5201 San Bernardino Loma Linda 320 Comment
  CLARK-A1528-7772  Cordylanthus parviflorus John C. Roos 1937-8-25 1 San Bernardino New York Mountains Comment
  CLARK-A1528-7778  Asclepias californica John C. Roos 1965-7-24 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-7779  Asclepias californica John C. Roos 1965-7-24 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-7829  Poa secunda John C. Roos 1950-5-13 4808 San Bernardino Lucerne Valley 883 Comment
  CLARK-A1528-7843  Machaeranthera arida John C. Roos 1949-6-26 3561 San Bernardino Mesquite Valley 792 Comment
  CLARK-A1528-7844  Machaeranthera arida John C. Roos 1949-6-26 3561 San Bernardino Mesquite Valley 792 Comment
  CLARK-A1528-7846  Machaeranthera arida John C. Roos 1949-6-26 3561 San Bernardino Mesquite Valley 792 Comment
  CLARK-A1528-7863  Capsella procumbens John C. Roos, Lucille Roos 1950-4-26 4763 San Bernardino Lucerne Valley 883 Comment
  CLARK-A1528-7864  Arabis hirsuta John C. Roos 1949-7-16 4553 San Bernardino San Bernardino Mountains 2255 Comment
  CLARK-A1528-7866  Arabis repanda John C. Roos 1949-7-16 4556 San Bernardino San Bernardino Mountains 2255 Comment
  CLARK-A1528-7875  Festuca californica John C. Roos 1951-6-9 5061 San Bernardino San Bernardino Mountains 1767 Comment
  CLARK-A1528-996  Epilobium glandulosum John C. Roos 1937-7-21 2000 San Bernardino San Bernardino Mountains Comment
  HSC78526  Eriastrum eremicum J. C. Roos 1965-6-16 San Bernardino 4 mi. N of Adelanto, Mojave Desert Comment
  HSC78530  Dyssodia papposa J. C. Roos, L. Roos May 1952 5056 San Bernardino Loma Linda, corner of Central & Anderson. 335 Comment
  HSC78535  Gilia australis J. C. Roos 1948-5-22 3868 San Bernardino San Timoteo Canyon, S of Redlands 457 Comment
  HSC78566  Festuca pratensis J. C. Roos, L. Roos 1950-6-3 4825 San Bernardino Rabbit Springs, Mojave Desert. 884 Comment
  HSC78743  Poa secunda subsp. secunda J. C. Roos, L. Roos 1950-6-3 4826 San Bernardino Rabbit Springs, Mojave Desert. 884 Comment
  LA102164  Melica imperfecta John C. Roos; 1947-2-22 3285 San Bernardino San Bernardino Mountains, Deep Creek, N side of the mountains Comment
  LA102288  Berberis nevinii J. C. Roos; 1966-2-10 sn San Bernardino San Timoteo Canyon, S of Redlands Comment
  LA102307  Potentilla gracilis J. C. Roos; 1937-7-26 338 San Bernardino San Bernardino Mountains, Bear Valley, Pine Knot ( now city of Big Bear ) Comment
  LA102313  Petalonyx nitidus John C. Roos; 1947-6-21 sn San Bernardino Crushenbury Canyon Comment
  OBI33203  Chenopodium incanum J. C. Roos 1965-6-16 s.n. San Bernardino 4 mi N of Adelanto, Mojave Desert Comment
  OBI35844  Eragrostis pectinacea John C. Roos 1965-7-5 s.n. San Bernardino Loma Linda 305 Comment
  POM251755  Mirabilis pumila J. C. Roos 1937-8-25 11 San Bernardino Mountain Pass, Ivanpah Mtns., eastern San Bernardino County. Comment
  POM261201  Poa fendleriana J. C. Roos 1941-5-30 104 San Bernardino Mouth of Coon Creek, San Bernardino Mts. Comment
  POM261393  Cryptantha cinerea var. abortiva J. C. Roos 1941-5-30 103 San Bernardino Mouth of Coon Creek, San Bernardino Mts. Comment
  POM261409  Hulsea vestita subsp. pygmaea J. C. Roos 1941-8-27 35 San Bernardino San Gorgonio Mtn 3354 Comment
  POM261412  Gnaphalium californicum J. C. Roos 1941-8-9 77 San Bernardino Foot of Vivian Creek trail, Mill Creek, San Bernardino Mts. Comment
  POM262785  Suaeda moquinii J. C. Roos 1940-8-22 245 San Bernardino Loma Linda Comment
  POM262876  Lupinus sparsiflorus subsp. sparsiflorus J. C. Roos 1941-3-8 214 San Bernardino Redlands, on Sunset Drive. Comment
  POM262885  Drymocallis glandulosa J. C. Roos 1920-7-20 533 San Bernardino Glen Martin. Comment
  POM262960  Castilleja linariifolia J. C. Roos 1941-4-26 140 San Bernardino Sand hills west of Colton. Comment
  POM262969  Mirabilis laevis var. crassifolia J. C. Roos 1941-4-25 162 San Bernardino Reche Canyon, San Bernardino Valley Comment
  POM262975  Orthocarpus purpurascens J. C. Roos 1941-4-10 173 San Bernardino Plateau in Reche Canyon. Comment
  POM262982  Clematis ligusticifolia J. C. Roos 1937-7-31 540 San Bernardino Crestline 1585 Comment
  POM262986  Montia chamissoi J. C. Roos 1937-7-22 334 San Bernardino Near South Fork of San Bernardino Mountains. 0 Comment
  POM262993  Mimulus floribundus J. C. Roos 1937-7-11 396 San Bernardino Reche Canyon. Comment
  POM263007  Artemisia douglasiana J. C. Roos 1940-9-7 229 San Bernardino Santa Ana River bottom near Loma Linda. Comment
  POM263008  Hazardia squarrosa var. grindelioides J. C. Roos 1940-9-1 233 San Bernardino Cajon Pass, San Bernardino Mts. 701 Comment
Read comments
Jul 17 2014
  POM263021  Deschampsia cespitosa subsp. cespitosa J. C. Roos 1937-7-22 406 San Bernardino South Fork Meadows, Santa Ana River 2439 Comment
  POM263031  Monardella cinerea J. C. Roos 1937-7-16 372 San Bernardino Mt. San Antonio, betrween L.A. & San Bernardino counties 2805 Comment
  POM263034  Potentilla anserina J. C. Roos 1937-7-26 354 San Bernardino Bear Valley Comment
  POM263039  Gutierrezia sarothrae J. C. Roos 1936-8-15 564 San Bernardino Upper Santa Ana Canyon. 1981 Comment
  POM263060  Gnaphalium chilense J. C. Roos 1941-4-25 s.n. San Bernardino Reche Canyon, San Bernardino Valley Comment
  POM263075  Astragalus tricarinatus J. C. Roos 1937-4-23 490 San Bernardino Dry Morongo Canyon. Comment
  POM263082  Gayophytum diffusum subsp. parviflorum J. C. Roos 1937-7-26 353 San Bernardino Bear Valley, San Bernardino Mountains. 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
  POM263103  Polygonum kelloggii J. C. Roos 1937-7-27 327 San Bernardino Near Grout Bay, Bear Valley. Comment
  POM263117  Dactylis glomerata J. C. Roos 1938-6-4 473 San Bernardino Loma Linda, San Bernardino Valley. Comment
  POM263135  Phacelia minor J. C. Roos 1941-3-8 205 San Bernardino Reche Canyon. Comment
  POM263148  Chamaesyce setiloba J. C. Roos 1937-8-22 626 San Bernardino Rice. Between San Bernardino & Riverside Cos. Comment
  POM263166  Abronia nana var. covillei J. C. Roos 1937-7-27 328 San Bernardino East end of Bear Valley, San Bernardino Mountains Comment
  POM263170  Brickellia arguta J. C. Roos 1941-4-5 188 San Bernardino Dry Morongo Canyon, Colorado Desert. Comment
  POM263180  Poa pratensis J. C. Roos 1937-5-9 460 San Bernardino Loma Linda, San Bernardino Valley. Comment
  POM263189  Agrostis scabra J. C. Roos 1937-7-25 410 San Bernardino Clark's Grade, San Bernardino Mountains. Comment
  POM263277  Phacelia distans J. C. Roos 1941-4-19 175 San Bernardino Reche Canyon. Comment
  POM263332  Allium peninsulare var. peninsulare J. C. Roos 1941-5-6 136 San Bernardino Near Loma Linda. Comment
  POM263546  Wislizenia refracta subsp. refracta J. C. Roos 1937-4-23 655 San Bernardino Oasis at Twentynine Palms Comment
  POM263550  Leptosiphon liniflorus J. C. Roos 1937-5-28 650 San Bernardino West Fork Mojave River, Cleghorn Canyon. Comment
  POM264308  Sagina saginoides J. C. Roos 1937-6-22 641 San Bernardino Near South Fork of Santa Ana River. Comment
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Oct 26 2013
  POM264416  Chenopodium chenopodioides J. C. Roos 1937-7-26 612 San Bernardino East Bear Valley, San Bernardino Mtns. Comment
  POM266282  Ericameria parishii J. C. Roos 1942-11-14 2582 San Bernardino Cedar Springs, N base of San Bernardino Mts. 1037 Comment
  POM266316  Helenium puberulum J. C. Roos 1937-7-11 2417 San Bernardino Reche Canyon. Comment
  POM266350  Quercus X morehus J. C. Roos 1942-4-25 1070 San Bernardino Cedar Springs, north side of San Bernardino Mts. 1067 Comment
  POM266367  Pyrrocoma uniflora var. gossypina J. C. Roos 1937-7-26 2472 San Bernardino Bear Valley, Pine Knot. Comment
  POM301525  Cynanchum utahense J. C. Roos 1937-4-27 2106 San Bernardino 5 miles south of Needles Comment
  POM301532  Arctostaphylos pungens J. C. Roos 1942-4-25 1109 San Bernardino Cedar Springs, north side of San Bernardino Mts. 1067 Comment
  POM301608  Nemacladus orientalis J. C. Roos 1937-4-28 1792 San Bernardino 20 miles south of Needles. Comment
  POM302499  Cardaria draba J. C. Roos 1943-4-4 2618 San Bernardino Waterman Ave., San Bernardino. Comment
  POM302500  Streptanthus bernardinus J. C. Roos 1943-7-31 2692 San Bernardino Kuffle Canyon, near Lake Arrowhead. San Bernardino Mountains. 1677 Comment
  POM302509  Oxytheca trilobata J. C. Roos 1943-5-23 2672 San Bernardino Little San Bernardino Mountains. 1524 Comment
  POM302515  Sparganium erectum subsp. stoloniferum J. C. Roos 1943-4-27 2628 San Bernardino Swamp along Waterman Ave. Comment
  POM302567  Arctostaphylos glauca J. C. Roos 1943-5-23 2655 San Bernardino Little San Bernardino Mountains. 1524 Comment
  POM431196  Filago depressa J. C. Roos 1959-3-28 s.n. San Bernardino 2-5 mi N of Kramer Junction. Comment
  RSA0126443  Arabis hirsuta var. glabrata J. C. Roos 1947-6-27 3719 San Bernardino South Fork of Santa Ana River. San Bernardino Mts. 2409 Comment
  RSA171382  Ribes roezlii J. C. Roos 1963-8-17 s.n. San Bernardino Mill Creek, San Bernardino Mts. 2073 Comment
  RSA262974  Orthocarpus purpurascens J. C. Roos 1941-4-19 172 San Bernardino Reche Canyon. Comment
  RSA262979  Salvia columbariae J. C. Roos 1941-4-19 179 San Bernardino Reche Canyon. Comment
  RSA265723  Eriogonum elongatum var. elongatum J. C. Roos 1937-10-30 2260 San Bernardino San Gabriel Mountains: junction of two forks of Lytle Creek. Comment
  RSA309655  Galium angustifolium subsp. gabrielense J. C. Roos 1967-7-15 s.n. San Bernardino Ridge between south and north fork of Mission Creek 2591 Comment
  RSA314966  Eragrostis pectinacea J. C. Roos 1939-9-16 s.n. San Bernardino Mentone Comment
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Aug 10 2007
  RSA40540  Hypochaeris glabra J. C. Roos 1948-4-29 2909 San Bernardino Carpenters tract in Loma Linda 335 Comment
  RSA41276  Melica aristata J. C. Roos 1941-7-19 116 San Bernardino Vivian Creek, San Bernardino Mts. 2226 Comment
  RSA41286  Poa atropurpurea J. C. Roos 1939-5-26 714 San Bernardino Bluff Lake, San Bernardino Mountains 2287 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
  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
  RSA44253  Pleuraphis jamesii J. C. Roos 1949-5-29 3538 San Bernardino Clark Mountains: Coliseum Mine Comment
  RSA44268  Bouteloua curtipendula J. C. Roos 1949-6-18 3551 San Bernardino Southeastern base of Clark Mountain, 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
  RSA444667  Poa pratensis J. C. Roos 1965-7-18 s.n. San Bernardino Moonridge, Bear Valley, San Bernardino Mountains. Comment
  RSA444673  Salpichroa origanifolia J. C. Roos 1965-6-29 s.n. San Bernardino Bloomington. Comment
  RSA444683  Viola macloskeyi J. C. Roos 1962-6-2 s.n. San Bernardino South Fork Santa Ana River. 2317 Comment
  RSA444790  Artemisia dracunculus J. C. Roos 1965-10-2 s.n. San Bernardino Camp Angelus. Comment
  RSA444805  Poa J. C. Roos, L. Roos 1950-6-3 4826 San Bernardino Rabbit Springs, Mojave Desert 884 Comment
  RSA44898  Achnatherum lemmonii var. lemmonii J. C. Roos 1947-7-19 3729 San Bernardino Dry slope under pines and firs, Vivian Creek, San Bernardino Mts. 2195 Comment
  RSA44910  Piptatherum micranthum J. C. Roos, Weatherby 1949-9-2 3571 San Bernardino North side of Kingston Mountains 2165 Comment
  RSA44926  Mentzelia dispersa J. C. Roos 1947-6-14 3676 San Bernardino Crestline, San Bernardino Mts. 1585 Comment
  RSA449953  Clarkia purpurea subsp. quadrivulnera J. C. Roos 1965-6-12 s.n. San Bernardino Igo's near Mountain Home Village and Mill Creek. San Bernardino Mountains. [Note: Igo s is present location of Mountain Home Village, Hwy. 38, San Bernardino Mtns. -SDW 2006] Comment
  RSA449962  Epilobium brachycarpum J. C. Roos 1965-7-18 s.n. San Bernardino Snow Valley, San Bernardino Mountains. Comment
  RSA449966  Navarretia hamata J. C. Roos, L. Roos 1952-6-14 5769 San Bernardino An abandoned grain field in Yucaipa. Sunny exposure with dry soil. Comment
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Oct 11 2009
  RSA449971  Microsteris gracilis subsp. gracilis J. C. Roos 1967-5-30 s.n. San Bernardino A meadow, Broom Flat. Comment
  RSA450061  Collinsia childii J. C. Roos, Lucille Roos 1953-6-18 5922 San Bernardino Cedarpines Park. 1524 Comment
  RSA450082  Calochortus invenustus J. C. Roos 1965-7-18 s.n. San Bernardino Bear Valley, San Bernardino Mountains. Comment
  RSA450085  Monardella australis subsp. australis J. C. Roos 1965-7-17 s.n. San Bernardino San Bernardino Mtns: Kilpecker Creek. Comment
  RSA450093  Clematis ligusticifolia J. C. Roos 1966-8-6 s.n. San Bernardino Cienega Seca Creek, Heart Bar Ranch. Comment
  RSA450117  Lupinus latifolius J. C. Roos 1965-7-18 s.n. San Bernardino Snow Valley, San Bernardino Mountains. Comment
  RSA450134A  Lupinus excubitus var. austromontanus J. C. Roos 1947-2-22 3290 San Bernardino Deep Creek, San Bernardino Mtns Comment
  RSA450165  Mimulus floribundus J. C. Roos 1965-9-11 s.n. San Bernardino Mill Creek. Comment
  RSA450171  Penstemon labrosus J. C. Roos 1965-7-17 s.n. San Bernardino Barton Flats, San Bernardino Mountains. Comment
  RSA450181  Juniperus osteosperma J. C. Roos 1950-8-4 s.n. San Bernardino N side of Clark Mountain, east Mojave Desert. Comment
  RSA450249  Potentilla gracilis var. elmeri J. C. Roos 1965-7-18 s.n. San Bernardino Moonridge, Bear Valley, San Bernardino Mountains. Comment
  RSA450303  Prunus emarginata J. C. Roos 1969-7-5 s.n. San Bernardino Upper Fish Creek. 2683 Comment
  RSA450414  Chaenactis santolinoides J. C. Roos 1965-6-26 s.n. San Bernardino San Bernardino Mountains probably near Barton Flats. Comment
  RSA450487  Pseudognaphalium thermale J. C. Roos 1961-10-28 s.n. San Bernardino Mill Creek, at the Marble Quarry Comment
  RSA450754  Stephanomeria exigua subsp. coronaria J. C. Roos 1981-7-18 s.n. San Bernardino Bear Valley. Comment
  RSA450768  Antennaria rosea J. C. Roos 1981-09 s.n. San Bernardino upper Santa Ana River Comment
  RSA45206  Hordeum jubatum J. C. Roos, L. Roos 1949-5-14 4306 San Bernardino Lucerne Valley 884 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
  RSA45477  Artemisia ludoviciana subsp. albula J. C. Roos 1948-9-18 4058 San Bernardino Clark Mts. 1768 Comment
  RSA45511  Nemacladus orientalis J. C. Roos 1949-4-9 4205 San Bernardino Roadside NW of Cross Roads, Whipple Mtns. Comment
  RSA457388  Poa howellii J. C. Roos 1957-6-1 6613 San Bernardino Yucaipa Ridge, 0.5 miles SW of Mill Creek Public Camp, Mill Creek, San Bernardino Mtns. Comment
  RSA457403  Aristida purpurea var. purpurea J. C. Roos 1950-8-4 s.n. San Bernardino N side of Clark Mountain, east Mojave Desert. Comment
  RSA47197  Mimulus tilingii J. C. Roos 1949-7-4 4540 San Bernardino Along stream at High Creek. 2744 Comment
  RSA47202  Frasera albomarginata J. C. Roos 1949-6-20 4419 San Bernardino New York Mountains: Keystone Canyon 1677 Comment
  RSA47311  Quercus turbinella subsp. turbinella J. C. Roos 1949-6-22 4452 San Bernardino New York Mountains; Keystone Canyon 1738 Comment
  RSA47314  Pellaea mucronata J. C. Roos, Lucille Roos 1949-6-21 4431 San Bernardino New York Mountains, S slope. 2134 Comment
  RSA47319  Aristida purpurea var. wrightii J. C. Roos, L. Roos 1949-5-29 4380 San Bernardino north side Clark Mts., eastern San Bernardino County 1402 Comment
  RSA47327  Achnatherum parishii subsp. parishii J. C. Roos 1949-6-27 4517 San Bernardino N side Kingston Mts 2073 Comment
  RSA47328  Leptochloa fusca subsp. uninervia J. C. Roos 1949-7-7 4545 San Bernardino 414 Stewart St. Loma Linda. Comment
  RSA473729  Euthamia occidentalis A. R. Roos 1922-11-8 s.n. San Bernardino Near Loma Linda 915 Comment
  RSA47422  Physalis hederifolia J. C. Roos 1949-6-22 4445 San Bernardino Barnwell, New York Mountains. Comment
  RSA47423  Hedeoma nana subsp. californica J. C. Roos, L. Roos 1949-6-22 4447 San Bernardino New York Mountains; Keystone Canyon 1738 Comment
  RSA47426  Leptosiphon aureus J. C. Roos, L. Roos 1949-6-23 4469 San Bernardino Near Rock Springs, Mid-hills, New York Mountains. 1463 Comment
  RSA47430  Menodora scabra var. laevis J. C. Roos 1949-6-23 4463 San Bernardino Lanfair Valley, north of Hackberry Mountain. 1311 Comment
  RSA47435  Oenothera cespitosa subsp. crinita J. C. Roos, L. Roos 1949-5-28 4374 San Bernardino North side Clark Mountain. 1616 Comment
  RSA47446  Crepis acuminata J. C. Roos 1949-7-16 4551 San Bernardino Moonridge Ski Area, Bear Valley. 2226 Comment
  RSA47457  Psathyrotes annua J. C. Roos 1949-6-26 4498 San Bernardino Mesquite Valley, 2 mi S of Kingston 793 Comment
  RSA47466  Erigeron breweri var. covillei J. C. Roos 1949-6-20 4414 San Bernardino Ivanpah Mtns, North side of Kokoweef Peak 1677 Comment
  RSA47477  Hymenopappus filifolius J. C. Roos 1949-6-21 4426 San Bernardino New York Mtns, Keystone Canyon. 1829 Comment
  RSA47768  Ribes velutinum J. C. Roos 1949-6-21 4432 San Bernardino New York Peak. 2134 Comment
  RSA48679  Tetradymia stenolepis J. C. Roos 1949-8-14 4616 San Bernardino eastern Mojave Desert. Barnwell in the N.Y. Mtns. area 1463 Comment
  RSA48694  Holodiscus microphyllus J. C. Roos 1949-9-2 4648 San Bernardino North slope of Kingston Peak 2165 Comment
  RSA501119  Elatine chilensis J. C. Roos 1962-7-21 s.n. San Bernardino San Bernardino Mtns., Dry Lake Comment
  RSA52774  Sporobolus contractus J. C. Roos 1950-9-1 4948 San Bernardino Valley Wells, eastern Mojave Desert. 1128 Comment
  RSA52784  Ericameria laricifolia J. C. Roos 1950-9-1 4956 San Bernardino Coliseum Mine, Clark Mountains. 1616 Comment
  RSA52800  Boerhavia coulteri J. C. Roos 1950-9-3 4980 San Bernardino Valley Wells 1128 Comment
  RSA52805  Brickellia desertorum J. C. Roos, L. Roos 1950-9-9 4986 San Bernardino Mt. Rubidoux. 396 Comment
  RSA591737  Pseudostellaria jamesiana J. C. Roos 1950-6-24 4839 San Bernardino Moonridge, Bear Valley, San Bernardino Mtns. 2226 Comment
  RSA592486  Draba corrugata J. C. Roos 1965-7-17 s.n. San Bernardino South Fork, San Bernardino Mts. 2591 Comment
  RSA594031  Helianthus annuus subsp. lenticularis J. C. Roos 1965-10-3 s.n. San Bernardino Loma Linda Comment
  RSA594034  Artemisia bigelovii J. C. Roos 1948-9-18 4059 San Bernardino Clark Mountian. North slope 1829 Comment
  RSA648670  Panicum capillare J. C. Roos 1946-9-6 2997 San Bernardino Warm Creek south of San Bernardino. Comment
  RSA649144  Aristida purpurea var. nealleyi J. C. Roos 1950-8-5 4898 San Bernardino north slope Clark Mts. about 1 1/2 miles S.W. of Coliseum Mine, eastern Mojave Desert. 1706 Comment
  RSA658423  Sporobolus cryptandrus J. C. Roos 1965-6-7 s.n. San Bernardino Victorville. Comment
  RSA658433  Poa secunda J. C. Roos 1967-5-30 s.n. San Bernardino Rocky ridge, on the E end of Broom Flat, N of Onyx Peak. San Bernardino Mtns. Comment
  RSA658699  Berberis nevinii J. C. Roos, L. Roos 1952-3-2 5384 San Bernardino Scott s Canyon 2 miles SE of Loma Linda, San Bernardino Valley. 427 Comment
  RSA658700  Cleome lutea J. C. Roos 1949-6-20 4412 San Bernardino Mountain Pass, south of Clark Mtn. 1524 Comment
  RSA659487  Eriogonum mohavense J. C. Roos, L. Roos 1952-5-17 5675 San Bernardino 10 miles west of Adelanto, Mojave Desert. Comment
  RSA662062  Cryptantha micrantha var. lepida J. C. Roos 1965-7-18 s.n. San Bernardino Along Bear Valley, San Bernardino Mtns. Comment
  RSA662071  Lupinus excubitus J. C. Roos 1965-7-18 s.n. San Bernardino Along Bear Valley, San Bernardino Mtns. Comment
  RSA662437  Atriplex polycarpa J. C. Roos 1965-7-6 1965 San Bernardino At the cement plant, Victorville. Comment
  RSA662533  Artemisia douglasiana J. C. Roos 1965-10-2 s.n. San Bernardino Mentone. Comment
  RSA664190  Artemisia tridentata A. R. Roos 1948-10-29 s.n. San Bernardino San Bernardino Mtns. summit of Cajon Pass. 1223 Comment
  RSA69820  Phyla lanceolata J. C. Roos, L. Roos 1951-9-29 5306 San Bernardino Warm Creek near south E street, San Bernardino. 305 Comment
  RSA78382  Chrysothamnus viscidiflorus subsp. viscidiflorus J. C. Roos 1951-7-28 5070 San Bernardino Head of Rathbone Creek. 2591 Comment
  RSA78383  Euphorbia supina J. C. Roos, L. Roos 1951-7-28 5066 San Bernardino Higway 99, near Alaba Street west of Redlands. 366 Comment
  RSA85092  Salix lasiolepis J. C. Roos 1952-4-4 5469 San Bernardino Warm Creek bottomland at Colton. 290 Comment
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Dec 3 2014
  RSA85159  Bouteloua curtipendula J. C. Roos, A. R. Roos 1950-8-5 4901 San Bernardino North side of Clark Mountains, about 1 mile SW of Coliseum Mine, eastern Mojave Desert. 1646 Comment
  RSA85276  Glechoma hederacea J. C. Roos 1954-4-7 6059 San Bernardino Loma Linda Hospital ground, Loma Linda. San Bernardino Valley. 351 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
  RSA85678  Aristida purpurea var. purpurea J. C. Roos 1950-8-5 4906 San Bernardino North slopes Clark Mountains along power line road, eastern Mojave Desert. 1280 Comment
  RSA86878  Chenopodium incanum J. C. Roos 1950-9-1 4960 San Bernardino Vicinity of Coliseum Mine, Clark Mountains 1646 Comment
  RSA89956  Andropogon glomeratus J. C. Roos, L. Roos 1950-11-4 5023 San Bernardino Arrowhead Hot Springs, south base San Bernardino Mountains. 610 Comment
  RSA89972  Chrysothamnus nauseosus subsp. hololeucus J. C. Roos 1950-10-11 5000 San Bernardino Cajon Pass at Cajon 915 Comment
  RSA89976  Ericameria palmeri var. pachylepis J. C. Roos, L. Roos 1950-10-7 498 San Bernardino West end of Palm Ave., at foot of hills, 2 mi. S of Colton. 305 Comment
  RSA89982  Grindelia squarrosa J. C. Roos 1950-9-3 4983 San Bernardino Mountain Pass, Clark Mountains, E Mojave Desert 1524 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
  SD65502  Castilleja cinerea John C. Roos 1943-7-4 2717 San Bernardino ridge summit of Sugerloaf Peak, San Bernardino Mts 2987 Comment
  SEINET14198965  Aristida purpurea J. C. Roos 1950-9-1 4947 San Bernardino 1 mi E of Yucca Station, eastern Mojave Desert 1616 Comment
  SEINET2031654 Image available Eupatorium herbaceum J. C. Roos 1950-9-2 4969 San Bernardino 1.5 miles S of Coliseum Mine, Clark Mtn 1707 Comment
  SEINET3222768 Image available Poa secunda John Roos, Lucille Roos 1950-4-26 4764 San Bernardino Rabbit Springs, Mojave Desert. 880 Comment
  SEINET3885349  Calochortus concolor John Roos, Lucille Roos 1952-6-14 5772 San Bernardino Mill Creek south of Mill Creek Public Camp, San Bernardino Mts.; 0 1158 Comment
  UC1010224  Helianthus ciliaris John C. Roos 1947-6-20 3684 San Bernardino in deserted grain field along Richardson Street near the Zanja; San Bernardino Valley, Victoria 304 Comment
  UC1010234  Eriochloa acuminata var. acuminata John C. Roos 1951-8-4 5080 San Bernardino San Bernardino Valley, s end Mountain View Avenue San Bernardino Valley; , Mountain View Avenue 365 Comment
  UC1010282  Sporobolus cryptandrus J. C. and A. R. Roos 1950-8-5 4897 San Bernardino ca. 1 1/2 mi. s.w. Coliseum Mine; e. Mohave Desert, Clark Mts. 1706 Comment
  UC1010286  Tetradymia argyraea J. C. and A. R. Roos 1950-8-6 4908 San Bernardino 0.1 mi s Tecopa Pass; Mojave Desert, Kingston Mts. 1524 Comment
  UC1010301  Sanvitalia abertii John C. Roos 1950-9-1 4954 San Bernardino near Coliseum Mine; Clark Mts, Mohave Desert 1645 Comment
  UC1010316  Brickellia desertorum John and Lucille Roos 1950-10-7 4999 San Bernardino 2 mi s of Colton (w end of Palm Ave. at foot of hills) 304 Comment
  UC1023417  Sporobolus cryptandrus John C. Roos 1950-8-12 4932 San Bernardino Mill Creek near junction of Vivian Creek; San Bernardino Mts., Mill Creek 1828 Comment
  UC1023418  Muhlenbergia andina John C. Roos 1950-8-12 4935 San Bernardino edge of meadow San Bernardino Mts., Vivian Creek 2194 Comment
  UC1023422  Sporobolus flexuosus John C. Roos 1950-9-1 4949 San Bernardino Valley Wells Station Mojave Desert, Valley Wells Station 1127 Comment
  UC1023426  Portulaca halimoides John C. Roos 1950-9-1 4951 San Bernardino Valley Wells Eastern Mohave Desert 1127 Comment
  UC1042974  Galinsoga parviflora var. parviflora John C. Roos 1954-5-11 6116 San Bernardino corner of Central and Anderson; Loma Linda 320 Comment
  UC1043022  Linanthus aureus subsp. aureus John and Lucille Roos 1952-5-17 5673 San Bernardino Adelanto Mohave Desert 944 Comment
  UC1494263  Berberis nevinii J. C. Roos 1996-2-10 San Bernardino s Redlands (San Timoteo Canyon) Comment
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Oct 23 2014
  UCD139510  Calochortus invenustus John C. Roos 1953-7-4 5926 San Bernardino Barton Flats near store, San Bernardino Mountains. Comment
  UCD63545  Eragrostis mexicana subsp. virescens A. R. Roos 1937-11-25 San Bernardino San Bernardino County. Comment
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Nov 26 2014
  UCD99220  Spergularia macrotheca var. leucantha J. C. Roos 1956-5-27 6583 San Bernardino north side of Highway 99, 0.2 miles west of Waterman Avenue, San Bernardino Valley. Comment
  UCR18573  Tetradymia stenolepis John C. Roos 1949-8-14 4616 San Bernardino Eastern Mojave Desert, Barnwell in the New York Mtns. area 1463 Comment
  UCR18632  Hymenoclea monogyra John C. Roos 1947-5-11 3608 San Bernardino San Bernardino Valley, Fontana Power Station, N. of Rialto 488 Comment
  UCR18633  Artemisia bigelovii John C. Roos 1948-9-19 s.n. San Bernardino Eastern Mojave Desert, Clark Mountain 1523 Comment
  UCR18684  Chrysothamnus nauseosus var. speciosus John C. Roos 1950-9-3 4972 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
  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
  UCR18772  Mentha suaveolens John C. Roos 1951-10-2 5311 San Bernardino San Bernardino Valley, Loma Linda 396 Comment
  UCR18832  Horkelia elata John C. Roos 1943-8-1 2696 San Bernardino San Bernardino Mtns, canyon near Crestline Comment
  UCR18891  Atriplex elegans John C. Roos 1965-9-23 s.n. San Bernardino Mojave Desert, roadside in Barstow Comment
  UCR18936  Quercus turbinella subsp. turbinella John C. Roos 1949-8-13 4620 San Bernardino Eastern Mojave Desert, Keystone Canyon, New York Mtns. 1768 Comment
  UCR18940  Oxytropis oreophila John C. Roos 1936-7-30 947 San Bernardino San Bernardino Mountains, San Gorgonio Peak 3354 Comment
  UCR18989  Amorpha californica John C. Roos 1948-6-13 3875 San Bernardino San Gabriel Mtns., Lytle Creek below Bonita Falls 915 Comment
  UCR18999  Cucurbita palmata John C. Roos 1965-7-6 s.n. San Bernardino Mojave Desert, Barstow Comment
  UCR19008  Cressa truxillensis John C. Roos 1948-9-19 4038 San Bernardino Eastern Mojave Desert, Soda Springs, near Baker 300 Comment
  UCR19033  Gaura sinuata John C. Roos 1950-5-16 4810 San Bernardino San Timoteo Canyon, canyon c. 1 mi. south of Redlands So. Pac. R.R. Station 457 Comment
  UCR19045  Fraxinus anomala John C. Roos 1949-5-28 4353 San Bernardino Eastern Mojave Desert, north slope Clark Mountain 1829 Comment
  UCR19065  Oxytheca parishii var. parishii John C. Roos, L. Roos 1950-9-23 4991 San Bernardino San Bernardino Mtns., at junction of Deep [Little Bear] and Hooks creeks 1448 Comment
  UCR19071  Geranium californicum John C. Roos 1965-7-17 s.n. San Bernardino San Bernardino Mountains, South Fork Meadows on the upper Santa Ana River 2591 Comment
  UCR19074  Castilleja tenuis John C. Roos 1940-7-16 1848 San Bernardino San Bernardino Mtns., Green Valley Comment
  UCR19079  Mimulus primuloides John C. Roos 1949-7-23 4569 San Bernardino San Bernardino Mtns., Hanna Flats, 3 miles northwest of Fawnskin 2134 Comment
  UCR19081  Berberis haematocarpa John C. Roos 1949-6-23 4461 San Bernardino Eastern Mojave Desert, Rock Spring, Mid Hills 1463 Comment
  UCR19127  Nepeta cataria John C. Roos 1946-8-31 2989 San Bernardino San Bernardino Mtns., Oak Glen, irrigation ditch behind Oak Glen School 1433 Comment
  UCR19147  Gilia capitata John C. Roos, L. Roos 1953-6-18 5923 San Bernardino San Bernardino Mtns., near Baylis Park, Crestline 1524 Comment
  UCR19153  Platanthera sparsiflora John C. Roos 1964-8-1 s.n. San Bernardino San Bernardino Mtns., Mill Creek near quarry 2073 Comment
  UCR19168  Phlox dolichantha John C. Roos 1949-7-16 4564 San Bernardino San Bernardino Mtns., Moonridge Ski Area, Bear Valley 2256 Comment
  UCR19183  Juglans californica John C. Roos 1966-4-3 s.n. San Bernardino San Bernardino Valley, NW of San Bernardino at the intersection of Palm Avenue and Kendall Drive 518 Comment
  UCR19240  Solanum americanum John C. Roos 1949-6-26 4500 San Bernardino Eastern Mojave Desert, Kingston Mountains, Horse [Thief] Springs 1451 Comment
  UCR19245  Phoradendron macrophyllum John C. Roos 1965-12-11 s.n. San Bernardino San Bernardino Mtns, Mill Creek 1098 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
  UCR19265  Eriogonum heermannii var. sulcatum John C. Roos, R. Weatherby 1949-9-2 3575 San Bernardino NE Mojave Desert, north side of the Kingston Mtns. 1921 Comment
  UCR19289  Stipa parishii John C. Roos 1949-6-27 4517 San Bernardino Eastern Mojave Desert, north side of Kingston Mtns. 2073 Comment
  UCR19342  Festuca saximontana John C. Roos 1946-9-4 2958 San Bernardino San Bernardino Mtns., High Creek 2744 Comment
  UCR19362  Trisetum canescens John C. Roos 1947-6-27 3715 San Bernardino San Bernardino Mountains, Stetson Creek drainage, Barton Flats 1890 Comment
  UCR19473  Chrysothamnus depressus John C. Roos 1948-9-18 4061 San Bernardino Eastern Mojave Desert, north slope of Clark Mountain 1829 Comment
  UCR19492  Bidens frondosa John C. Roos 1965-9-13 s.n. San Bernardino Mojave Desert, Victorville, Mojave River bottom 762 Comment
  UCR19493  Brickellia oblongifolia John C. Roos 1949-6-27 4519 San Bernardino Eastern Mojave Desert, north side of Kingston Mtns 2134 Comment
  UCR19515  Chrysothamnus viscidiflorus var. stenophyllus John C. Roos 1956-9-21 6600 San Bernardino San Bernardino Mtns, San Bernardino National Forest, Rose Mine, c. 3/4 mi. (airline) NE of Round Valley Campground. 2073 Comment
  UCR19542  Petradoria pumila John C. Roos 1948-9-18 4066 San Bernardino Eastern Mojave Desert, north slope of Clark Mountain 1829 Comment
  UCR19543  Brickellia californica John C. Roos 1948-9-18 4057 San Bernardino Eastern Mojave Desert, north slope of Clark Mountain 1829 Comment
  UCR19690  Agrostis exarata John C. Roos 1950-7-29 4885 San Bernardino San Bernardino Mtns., Mill Creek, junction with High Creek 2195 Comment
  UCR19726  Coronopus didymus John C. Roos 1953-4-16 5913 San Bernardino San Bernardino Valley, Loma Linda 320 Comment
  UCR20302  Arenaria congesta John C. Roos 1949-6-21 3557 San Bernardino Eastern Mojave Desert, New York Mtns, ridge of New York Peak 2226 Comment
  UCR20321  Ericameria cuneata John C. Roos, R. Weatherby 1949-9-2 4641 San Bernardino Eastern Mojave Desert, north slope of the Kingston Range 2073 Comment
  UCR20436  Muhlenbergia californica John C. Roos 1949-9-24 4666 San Bernardino San Bernardino Mtns., Upper Mill Creek at the Marble Quarry 1982 Comment
  UCR20451  Digitaria ischaemum John C. Roos 1952-9-25 5898 San Bernardino San Bernardino Valley, Loma Linda Comment
  UCR20465  Sporobolus cryptandrus John C. Roos 1950-8-12 4932 San Bernardino San Bernardino Mtns., Mill Creek near junction of Vivian Creek 1829 Comment
  UCR20479  Muhlenbergia richardsonis John C. Roos 1950-8-12 4934 San Bernardino San Bernardino Mtns., Vivian Creek 2195 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
  UCR20585  Eragrostis mexicana subsp. virescens John C. Roos 1954-5-16 6121 San Bernardino San Bernardino Valley, Loma Linda 335 Comment
  UCR20615  Sorghum bicolor John C. Roos 1965-9-12 s.n. San Bernardino San Bernardino Valley, Loma Linda Comment
  UCR21046  Eragrostis orcuttiana John C. Roos 1950-5-16 4811 San Bernardino San Bernardino Valley, Highland 457 Comment
  UCR23249  Panicum miliaceum John C. Roos 1958-5-10 s.n. San Bernardino San Bernardino Valley, 204 Tulip, Loma Linda Comment
  UCR23250  Larrea tridentata John C. Roos 1950-8-4 s.n. San Bernardino Eastern Mojave Desert, north side of Clark Mountain 1220 Comment
  UCR23255  Clematis pauciflora John C. Roos 1952-6-8 5738 San Bernardino San Bernardino Valley, San Timoteo Canyon south of Redlands 457 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
  UCR23327  Atriplex argentea subsp. expansa Alfred R. Roos 1947-7-22 s.n. San Bernardino San Bernardino Valley, Loma Linda 305 Comment
  UCR23353  Asplenium vespertinum John C. Roos 1942-3-28 1087 San Bernardino San Bernardino Valley, Canyon above plateau, Reche Canyon, near Loma Linda Comment
  UCR23373  Pinus coulteri John C. Roos 1965-7-17 s.n. San Bernardino San Bernardino Mtns, near [Angelus Oaks] Camp Angelus 1890 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
  UCR23383  Berberis haematocarpa John C. Roos 1937-8-25 1197 San Bernardino Eastern Mojave Desert, Barnwell, near the New York Mountains 457 Comment
  UCR23396  Bupleurum subovatum John C. Roos 1966-5-5 s.n. San Bernardino San Bernardino Valley, Loma Linda 306 Comment
  UCR23423  Amaranthus powellii John C. Roos 1954-11-21 6257 San Bernardino San Bernardino Valley, Loma Linda 336 Comment
  UCR23446  Mirabilis bigelovii John C. Roos 1949-5-14 4298 San Bernardino Western Mojave Desert, near Hesperia Comment
  UCR23457  Ranunculus uncinatus John C. Roos 1940-7-18 1869 San Bernardino San Bernardino Mtns., Green Valley 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
  UCR23487  Ivesia argyrocoma John C. Roos 1965-7-18 s.n. San Bernardino San Bernardino Mtns, Bear Valley near Fawnskin Comment
  UCR23553  Arabis parishii John C. Roos 1967-5-30 s.n. San Bernardino San Bernardino Mtns, east of Broom Flat 2424 Comment
  UCR23572  Pterospora andromedea John C. Roos 1969-8-9 s.n. San Bernardino San Bernardino Mtns, Fish Creek Meadows. Near the Saddle Comment
  UCR23576  Mentha suaveolens John C. Roos 1969-5-18 s.n. San Bernardino San Bernardino Valley, Loma Linda 396 Comment
  UCR23586  Cryptantha jamesii John C. Roos 1947-6-21 3687 San Bernardino San Bernardino Mtns., east end of Bear Valley 2134 Comment
  UCR23596  Euphorbia serpillifolia John C. Roos 1940-7-18 1875 San Bernardino San Bernardino Mtns., Green Valley Comment
  UCR23607  Datisca glomerata John C. Roos 1937-5-29 826 San Bernardino San Bernardino Mtns, Deep Creek Comment
  UCR23625  Salvia leucophylla John C. Roos 1940-5-25 1901 San Bernardino San Bernardino Valley, at mouth of Santa Ana River, above Highland Comment
  UCR23694  Centaurium venustum John C. Roos 1952-6-13 5766 San Bernardino San Bernardino Valley, Reche Canyon 457 Comment
  UCR23705  Spergularia marina John C. Roos 1952-4-14 5538 San Bernardino San Bernardino Valley, Loma Linda. 305 Comment
  UCR23728  Crepis acuminata John C. Roos 1965-6-26 s.n. San Bernardino San Bernardino Mtns., Upper Santa Ana River 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
  UCR23753  Physalis hederifolia John C. Roos 1949-6-22 4445 San Bernardino Eastern Mojave Desert, New York Mtns, Barnwell 1494 Comment
  UCR23796  Galinsoga parviflora John C. Roos 1968-9-7 s.n. San Bernardino San Bernardino Mtns., Lake Arrowhead Village 1524 Comment
  UCR23825  Gutierrezia microcephala John C. Roos 1943-10-16 2745 San Bernardino Southern Mojave Desert, Lone Star Ranch, on the road to Twentynine Palms [Yucca Valley; apparently the site of a gas station] Comment
  UCR23832  Cirsium scariosum John C. Roos 1940-7-20 1888 San Bernardino San Bernardino Mtns., Green Valley, in a meadow 2134 Comment
  UCR23865  Bromus carinatus John C. Roos 1965-7-17 s.n. San Bernardino San Bernardino Mtns, Stetson Creek, Barton Flats 1951 Comment
  UCR23913  Quercus chrysolepis John C. Roos 1949-6-22 4455 San Bernardino Eastern Mojave Desert, New York Mtns, canyon bottoms and up to the summit of Keystone Canyon. 2256 Comment
  UCR23936  Festuca californica var. parishii John C. Roos 1943-4-21 2633 San Bernardino San Bernardino Mtns, Waterman Canyon 854 Comment
  UCR23940  Chrysolepis sempervirens John C. Roos 1940-7-18 1874 San Bernardino San Bernardino Mtns., Green Valley Comment
  UCR23954  Amorpha californica John C. Roos 1947-6-14 3677 San Bernardino San Bernardino Mtns, Crestline 1585 Comment
  UCR23959  Astragalus bicristatus John C. Roos 1937-7-28 1947 San Bernardino San Bernardino Mtns, Van Deusen Canyon [Caribou Creek], near Bear Valley 2195 Comment
  UCR23960  Astragalus coccineus John C. Roos 1942-5-1 1115 San Bernardino Mojave Desert, Little San Bernardino Mtns., Quail Springs 1159 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
  UCR23984  Echinochloa crus-galli John C. Roos 1965-7-4 s.n. San Bernardino San Bernardino Valley, Loma Linda 306 Comment
  UCR23989  Eragrostis barrelieri John C. Roos 1965-9-22 s.n. San Bernardino Mojave Desert, Barstow Comment
  UCR24010  Stipa X bloomeri John C. Roos 1946-9-28 s.n. San Bernardino San Bernardino Mtns., Near Fish Creek 2241 Comment
  UCR24026  Eragrostis mexicana subsp. virescens John C. Roos 1938-8-19 2760 San Bernardino San Bernardino Valley, Loma Linda 305 Comment
  UCR24042  Poa pratensis John C. Roos 1940-8-3 1586 San Bernardino San Bernardino Mtns., Bluff Lake 2317 Comment
  UCR24058  Lasthenia gracilis John C. Roos 1949-4-30 4277 San Bernardino Mojave Desert, 4 mi NE of Hesperia 884 Comment
  UCR24077  Iva axillaris John C. Roos 1946-9-21 3086 San Bernardino N slope San Bernardino Mtns/S Mojave Desert, Box 'S' Springs 1082 Comment
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Jul 5 2014
  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
  UCR24087  Hordeum brachyantherum subsp. californicum John C. Roos 1947-6-21 3708 San Bernardino San Bernardino Mtns, Running Springs 1838 Comment
  UCR24106  Carex aurea 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
  UCR24137  Madia glomerata John C. Roos 1937-6-26 1937 San Bernardino San Bernardino Mtns., Pine Knot, Bear Valley [vicinity of Pine Knot Blvd., city of Big Bear Lake] 2073 Comment
  UCR24155  Xanthium strumarium John C. Roos 1938-8-19 2754 San Bernardino San Bernardino Valley, Loma Linda 305 Comment
  UCR24161  Senecio ionophyllus John C. Roos 1937-7-22 332 San Bernardino San Bernardino Mtns, Trail to South Fork Meadows 2500 Comment
  UCR24164  Senecio spartioides John C. Roos 1946-9-15 3038 San Bernardino San Bernardino Mtns, south face of Mt. Jepson, on San Gorgonio Peak Trail 3171 Comment
  UCR24169  Solidago occidentalis John C. Roos 1946-10-2 s.n. San Bernardino San Bernardino Valley, south of San Bernardino 305 Comment
  UCR24185  Atriplex canescens var. laciniata John C. Roos 1965-9-22 s.n. San Bernardino Mojave Desert, Barstow Comment
  UCR24210  Eriogonum saxatile John C. Roos 1942-5-1 1050 San Bernardino Mojave Desert, Little San Bernardino Mtns., Quail Springs 1159 Comment
  UCR24222  Calyptridium parryi var. parryi John C. Roos 1946-9-15 3035 San Bernardino San Bernardino Mtns., summit of Mt. San Gorgonio 3491 Comment
  UCR24226  Gilia splendens John C. Roos 1947-6-14 3672 San Bernardino San Bernardino Mtns, Crestline 1585 Comment
  UCR24258  Oxytheca caryophylloides John C. Roos, L. Roos 1956-7-21 6588 San Bernardino San Bernardino Mtns, Deer Lick Springs 1829 Comment
  UCR24262  Eriogonum microthecum var. corymbosoides John C. Roos 1937-7-28 1948 San Bernardino San Bernardino Mtns, Van Deusen Canyon [Caribou Creek], near Bear Valley 2195 Comment
  UCR24263  Eriogonum heermannii var. argense John C. Roos 1946-9-21 3078 San Bernardino San Bernardino Mtns., Cushenbury Spring 1280 Comment
  UCR24278  Polygonum douglasii John C. Roos 1940-7-16 s.n. San Bernardino San Bernardino Mtns., Green Valley Comment
  UCR24359  Ambrosia psilostachya John C. Roos 1938-8-19 2750 San Bernardino San Bernardino Valley, Loma Linda 305 Comment
  UCR24360  Schismus barbatus John C. Roos 1950-4-17 4744 San Bernardino San Bernardino Valley, Loma Linda 335 Comment
  UCR24365  Arnica chamissonis John C. Roos 1937-7-28 1942 San Bernardino San Bernardino Mountains, Holcomb Valley, north of Delamar Mtn. 2287 Comment
  UCR24374  Tridens muticus John C. Roos 1949-5-28 3536 San Bernardino Eastern Mojave Desert, near Coloseum Mine, on the N slopes of Clark Mountain 1829 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
  UCR24389  Saxifraga odontoloma John C. Roos 1961-7-15 s.n. San Bernardino San Bernardino Mtns, South Fork Meadows 2561 Comment
  UCR24394  Lithophragma parviflorum John C. Roos 1965-6-26 s.n. San Bernardino San Bernardino Mtns., Upper Santa Ana River 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
  UCR24403  Aster frondosus John C. Roos 1946-8-29 2780 San Bernardino San Bernardino Mtns., Bear Valley, at the edge of the lake [Big Bear Lk.] 2058 Comment
  UCR24406  Arida carnosa John C. Roos 1946-9-21 3044 San Bernardino San Bernardino Mtns., Cushenbury Spring 1280 Comment
  UCR24417  Antennaria rosea John C. Roos 1965-6-26 s.n. San Bernardino San Bernardino Mtns., Upper Santa Ana River Comment
  UCR24424  Hemizonia fasciculata John C. Roos 1965-6-27 s.n. San Bernardino San Bernardino Valley, Loma Linda Hills 366 Comment
  UCR24429  Boykinia rotundifolia John C. Roos 1942-8-15 1953 San Bernardino San Bernardino Mtns., below Crestline, south side along 'high gear' road Comment
  UCR24437  Quercus kelloggii John C. Roos 1965-10-2 s.n. San Bernardino San Bernardino Mtns, Barton Flats, near Camp Angelus Comment
  UCR24495  Castilleja lasiorhyncha John C. Roos 1940-7-21 1568 San Bernardino San Bernardino Mtns., Green Valley 2073 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
  UCR25111  Chrysothamnus viscidiflorus John C. Roos, L. Roos 1951-7-28 5070 San Bernardino San Bernardino Mtns, [near Sugarlump] head of Rathbone Creek 2591 Comment
  UCR25114  Stipa X bloomeri John C. Roos, L. Roos 1951-7-28 5067 San Bernardino San Bernardino Mtns, Head of Rathbone Creek Comment
  UCR25148  Euphorbia nutans John C. Roos, L. Roos 1951-7-28 5065 San Bernardino San Bernardino Valley, Hwy 99, near Alabama Street west of Redlands 366 Comment
  UCR25152  Eriogonum thurberi John C. Roos 1951-6-16 5063 San Bernardino San Bernardino Valley, Loma Linda 305 Comment
  UCR25183  Poa secunda John C. Roos, L. Roos 1951-6-9 5059 San Bernardino San Bernardino Mtns., Running Springs 1829 Comment
  UCR25240  Eragrostis mexicana subsp. virescens Alfred R. Roos 1937-11-25 s.n. San Bernardino San Bernardino Valley/San Bernardino Mtns. Foothills, Highland, east of San Bernardino 457 Comment
  UCR25259  Oreonana vestita John C. Roos 1946-9-15 3037 San Bernardino San Bernardino Mtns., San Gorgonio ridge 3293 Comment
  UCR25299  Elatine John C. Roos 1962-7-21 s.n. San Bernardino San Bernardino Mtns, Dry Lake 2764 Comment
  UCR25358  Platystemon californicus John C. Roos 1952-5-10 5647 San Bernardino Mojave Desert, Adelanto 915 Comment
  UCR25378  Solidago californica John C. Roos 1949-8-13 4603 San Bernardino Eastern Mojave Desert, Copper Queen Mine, Keystone Canyon, New York Mtns 1829 Comment
  UCR25405  Hymenoxys acaulis John C. Roos 1948-9-18 4047 San Bernardino Eastern Mojave Desert, north slope of Clark Mountain 1829 Comment
  UCR25411  Plantago patagonica John C. Roos 1949-4-30 4274 San Bernardino Southern Mojave Desert, 5 mi west of Lucerne Valley 915 Comment
  UCR25758  Allionia incarnata John C. Roos 1937-4-25 798 San Bernardino Southeastern Mojave Desert, west of Essex Comment
  UCR25762  Oenothera californica John C. Roos, L. Roos 1952-5-9 5624 San Bernardino San Bernardino Valley, near Santa Ana River in Colton 274 Comment
  UCR25802  Eucrypta micrantha John C. Roos, L. Roos 1952-5-10 5639 San Bernardino Western Mojave Desert, 4 mi. northwest of Adelanto, near Red Raven Mine 823 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
  UCR25921  Lotus purshianus John C. Roos 1950-6-3 4824 San Bernardino Southern Mojave Desert, Rabbit Springs, Lucerne Valley 884 Comment
  UCR25964  Cryptantha gracilis John C. Roos 1949-6-24 3559 San Bernardino Eastern Mojave Desert, summit of Clark Mountain 2409 Comment
  UCR26071  Isocoma acradenia var. eremophila John C. Roos 1948-9-19 4040 San Bernardino Eastern Mojave Desert, Soda Springs, near Baker 284 Comment
  UCR26081  Artemisia nova John C. Roos 1949-9-2 4644 San Bernardino Eastern Mojave Desert, Kingston Mtns, NE of Kingston Peak 2073 Comment
  UCR26128  Phacelia distans John C. Roos 1947-4-26 3602 San Bernardino San Bernardino Mtns, Igo's [Mountain Home Village], Mill Creek 1159 Comment
  UCR26168  Camissonia campestris John C. Roos 1952-4-22 5568 San Bernardino San Bernardino Valley, 1 mi west of Colton along Hwy 99 305 Comment
  UCR26183  Salix lemmonii John C. Roos 1949-7-4 4535 San Bernardino San Bernardino Mtns., High Creek, just west of San Gorgonio 2744 Comment
  UCR26213  Galium trifidum John C. Roos 1937-7-19 378 San Bernardino San Bernardino Valley, [2 miles] south of San Bernardino 320 Comment
  UCR26245  Eriogonum wrightii var. wrightii John C. Roos 1937-8-25 2027 San Bernardino Eastern Mojave Desert, Barnwell, near the New York Mountains 457 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
  UCR26259  Hibiscus trionum John C. Roos 1967-7-16 s.n. San Bernardino San Bernardino Valley, Loma Linda. 320 Comment
  UCR26299  Salvia pachyphylla John C. Roos 1949-6-19 4406 San Bernardino Eastern Mojave Desert, SE foot of Clark Mountain 1951 Comment
  UCR26323  Platanthera dilatata var. leucostachys John C. Roos 1949-7-4 4543 San Bernardino San Bernardino Mtns., Vivian Creek 2165 Comment
  UCR27434  Artemisia nova John C. Roos 1948-9-18 4069 San Bernardino Eastern Mojave Desert, north slope of Clark Mountain, Green's Mine 1585 Comment
Read comments
Mar 8 2012
  UCR27543  Calochortus palmeri John C. Roos, L. Roos 1952-7-12 5809 San Bernardino San Bernardino Mtns., NE shoulder of Strawberry Peak 1829 Comment
  UCR27597  Chorizanthe leptotheca John C. Roos 1948-5-22 3863 San Bernardino San Bernardino Valley, San Timoteo Canyon, south of Redlands 457 Comment
  UCR28476  Chenopodium incanum var. occidentale John C. Roos 1965-6-16 s.n. San Bernardino Western Mojave Desert, four miles north of Adelanto 854 Comment
  UCR30545  Poa annua John C. Roos, L. Roos 1950-4-26 4770 San Bernardino Mojave Desert, Rabbit Springs, north of Lucerne Valley 884 Comment
  UCR30560  Erigeron breweri var. porphyreticus John C. Roos 1947-6-21 3691 San Bernardino San Bernardino Mtns, Fawnskin, Bear Valley Comment
  UCR30631  Lupinus shockleyi John C. Roos, Lucille Roos 1949-4-9 4210 San Bernardino Sonoran (Colorado) Desert, [Near Freda], Freda Basin in Ward Valley, south of the Turtle Mtns 305 Comment
  UCR30765  Eleocharis parishii John C. Roos, A. R. Roos 1950-8-7 s.n. San Bernardino Northeastern Mojave Desert, Beck Spring, Kingston Mountains 1372 Comment
  UCR31318  Setaria pumila John C. Roos 1951-9-23 5239 San Bernardino San Bernardino Valley, 2 miles west of Loma Linda 305 Comment
  UCR31666  Silene parishii John C. Roos 1946-10-5 3121 San Bernardino San Bernardino Mtns., Pipes Creek 1829 Comment
  UCR32864  Eragrostis pectinacea var. pectinacea John C. Roos 1965-7-5 s.n. San Bernardino San Bernardino Valley, Loma Linda 305 Comment
  UCR62658  Lithophragma tenellum John C. Roos 1967-6-3 s.n. San Bernardino San Bernardino Mtns., north slope of ridge south of Big Meadows 2287 Comment
  UCSB37347  Ceanothus tomentosus Roos, J. 1966-3-31 San Bernardino In the hills of San Timoteo Canyon, near Redlands Blvd. 304 Comment
  UCSB37783  Achnatherum occidentale subsp. californicum Roos, John 1981-09 San Bernardino Barton Flats, San Bernardino Mtns. Comment
  UCSB37828  Heterotheca villosa Roos, John 1965-9-11 San Bernardino In Mill Creek Canyon, San Bernardino Mts. Comment
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Jan 23 2012
  UCSB37916  Packera ionophylla Roos, John 1964-6-26 San Bernardino Upper Santa Ana River, San Bernardino Mtns. 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
  UCSB42108  Silene parishii Roos, John 1966-8-6 San Bernardino Fish Creek, San Bernardino Mtns. 2316 Comment
  UCSB42120  Epilobium oregonense Roos, John 1965-7-31 San Bernardino South Fork of the Santa Ana River, San Bernardino Mtns 2286 Comment
  UCSB42130  Mimulus cardinalis Roos, John 1965-9-11 San Bernardino Mill Creek; San Bernardino Mtns 598 Comment
  UCSB42134  Penstemon rostriflorus Roos, John 1965-7-18 San Bernardino Moonridge, Bear Valley, San Bernardino Mtns. Comment
  UCSB42143  Phlox austromontana Roos, John 1967-5-30 San Bernardino Arrastre Creek, on the upper slopes of the San Bernardino Mtns Comment
  UCSB42172  Arenaria lanuginosa Roos, John 1965-7-17 San Bernardino South Fork, San Bernardino Mtns.; near Barton Flats 2438 Comment
  UCSB42204  Pseudostellaria jamesiana Roos, John 1950-6-24 San Bernardino Moonridge, Bear Valley, San Bernardino Mtns. 2225 Comment
  UCSB42212  Astragalus minthorniae var. villosus Roos, John 1949-5-29 San Bernardino Near Greenes Mine, Clark Mtn. 1584 Comment
  UCSB42216  Lupinus excubitus Roos, J. 1965-7-18 San Bernardino Along Bear Valley; San Bernardino Mtns. Comment
  UCSB42254  Eriogonum parishii Roos, John 1965-10-2 San Bernardino Camp Angelus; San Bernardino Mtns Comment
  UCSB42259  Rumex californicus Roos, John 1965-7-17 San Bernardino Dry Lake, San Bernardino Mtns. Comment
  UCSB42267  Dysphania botrys Roos, John 1965-7-4 San Bernardino Loma Linda Comment
  UCSB42268  Atriplex polycarpa Roos, John 1965-7-6 San Bernardino At the cement plant, Victorville Comment
  UCSB45565  Sporobolus airoides Roos, John 1965-6-7 San Bernardino Victorville Comment
  UCSB45598  Descurainia incana Roos, John 1947-2-22 San Bernardino Deep Creek, along the flume, San Bernardino Mountains Comment
  UCSB45936  Amaranthus albus Roos, John 1965-7-4 San Bernardino Loma Linda 304 Comment
  UCSB45947  Anthemis cotula Roos, John 1965-6-29 San Bernardino Bryn Mawr 304 Comment
  UCSB45965  Croton californicus Roos, John 1965-6-27 San Bernardino Loma Linda Hills 304 Comment
  UCSB46751  Lappula redowskii Roos, John 1967-5-30 San Bernardino Near Arrastre Creek; San Bernardino Mtns. 2286 Comment
  UCSB49868  Stephanomeria cichoriacea Roos, John 1965-10-2 San Bernardino East Fork Mtn. Home Canyon, San Bernardino Mtns. Comment
  UCSB51362  Schismus barbatus Roos, John 1950-4-17 San Bernardino Loma Linda 335 Comment
  UCSB51365  Hordeum jubatum Roos, John 1965-7-18 San Bernardino Big Bear Lake, San Bernardino Mtns. Comment
  UCSB51370  Muhlenbergia andina Roos, John 1962-9-29 San Bernardino Mill Creek; San Bernardino Mtns 2042 Comment
  UCSB51410  Echinochloa crus-galli Roos, John 1965-7-4 San Bernardino Loma Linda 304 Comment
  CAS-BOT-BC390312  Spergularia macrotheca var. macrotheca J. C. Roos 1956-5-27 6583 San Bernardino Noth side of Highway 99, 0.2 miles west of Waterman Ave, San Bernardino Valley Comment
  CAS-BOT-BC403762  Salpichroa origanifolia J. C. Roos 1965-6-29 s.n. San Bernardino Bloomington Comment
  CLARK-A1528-1117  Capsella bursa-pastoris John C. Roos 1943-4-4 2619 San Bernardino San Bernardino 320 Comment
  CLARK-A1528-1134  Suaeda depressa var. depressa John C. Roos 1937-7-27 San Bernardino San Bernardino Mountains 2042 Comment
  CLARK-A1528-1564  Artemisia douglasiana John C. Roos 1968-10-12 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-1694  Chaenactis carphoclinia John C. Roos 1937-4-23 2453 San Bernardino Twentynine Palms Comment
  CLARK-A1528-1915  Helianthus petiolaris John C. Roos, Lucille Roos 1954-4-30 6071 San Bernardino 304 Comment
  CLARK-A1528-2226  Cryptantha micrantha John C. Roos 1937-4-7 1344 San Bernardino Lytle Creek Comment
  CLARK-A1528-2487  Stellaria media John C. Roos 1947-3-21 3375 San Bernardino San Bernardino Comment
  CLARK-A1528-2559  Chenopodium fremontii John C. Roos 1966-8-6 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-2576  Cycloloma atriplicifolium John C. Roos 1941-9-4 San Bernardino Bloomington Comment
  CLARK-A1528-2634  Euphorbia serpyllifolia John C. Roos 1946-9-3 2976 San Bernardino Oak Glen Comment
  CLARK-A1528-2825  Lupinus confertus John C. Roos 1946-8-29 2934 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-2831  Lupinus excubitus subsp. austromontanus John C. Roos 1937-5-15 1187 San Bernardino San Bernardino Mountains Comment
  CLARK-A1528-2952  Gentiana simplex John C. Roos 1966-8-6 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-A1528-3184  Asparagus officinalis John C. Roos 1937-7-15 382 San Bernardino Comment
  CLARK-A1528-3194  Calochortus nuttallii var. australis John C. Roos 1953-7-4 5926 San Bernardino San Bernardino Mountains 1920 Comment
  CLARK-A1528-5072  Astragalus inflexus John C. Roos 1948-7-10 San Bernardino San Bernardino Mountains at South Fork, at public camp; Moonridge 7.5'Q Comment
  CLARK-A1528-5351  Mentha arvensis John C. Roos 1952-8-6 5882 San Bernardino San Bernardino 304 Comment
  CLARK-A1528-5385  Coronopus didymus John C. Roos 1953-4-16 5913 San Bernardino San Bernardino Valley 320 Comment
  CLARK-A1528-5526  Euphorbia setiloba John C. Roos 1946-11-2 3153 San Bernardino Comment
  CLARK-A1528-994  Lupinus concinnus subsp. optatus John C. Roos 1937-5-15 686 San Bernardino San Bernardino Mountains 1523 Comment
  LA102242  Mimulus guttatus John C. Roos; 1951-9-24 5241 San Bernardino along Gage Canal, Loma Linda 304 Comment
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Aug 20 2014
  POM262872  Physalis philadelphica J. C. Roos 1940-10-26 220 San Bernardino Loma Linda. Comment
  POM265767  Potamogeton crispus J. C. Roos 1937-5-9 2095 San Bernardino Near Loma Linda, San Bernardino Valley Comment
  RSA0013675  Senecio spartioides J. C. Roos, P. Roos 1966-9-13 s.n. San Bernardino Ridge between headwaters of Fish Creek and North Fork meadows. Comment
  RSA0021848  Galium trifidum subsp. columbianum J. C. Roos 1937-7-19 378 San Bernardino 2 miles south of San Bernardino. Comment
  RSA0022794  Monardella australis subsp. australis J. C. Roos 1937-7-20 1177 San Bernardino Barton Flats, San Bernardino Mts. Comment
  RSA0029557  Xanthisma gracile J. C. Roos 1949-6-23 4466 San Bernardino Lanfair Valley, NW of Hackberry Mtn. 1311 Comment
  RSA0074461  Heterotheca fastigiata J. C. Roos 1940-8-17 1605 San Bernardino Mill Creek, at CCC Camp, San Bernardino Mts. Comment
  RSA0098761  Spergularia macrotheca J. C. Roos 1956-5-27 6583 San Bernardino North side of Highway 99, 0.2 miles west of Waterman Ave, San Bernardino Valley. Comment
  RSA449965  Plantago virginica J. C. Roos 1981-08 s.n. San Bernardino Loma Lina 305 Comment
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Dec 17 2016
  RSA450076  Nicotiana glauca J. C. Roos 1965-6-27 s.n. San Bernardino Loma Linda Hills. 305 Comment
  RSA450240  Myriophyllum aquaticum J. C. Roos 1952-6-24 s.n. San Bernardino South E. St. near the sewage plant. Comment
  RSA450456  Bromus rubens J. C. Roos 1965-6-6 s.n. San Bernardino San Bernardino Mtns, Mill Creek near Fallsvale. Comment
  RSA662074  Amaranthus retroflexus A. R. Roos 1937-11-24 s.n. San Bernardino Bryn Mawr. Comment
  RSA662541  Dyssodia papposa J. C. Roos, L. Roos 1952-05 5056 -a San Bernardino Loma Linda, corner of Central & Anderson. 335 Comment
  RSA78218  Polygonum aviculare subsp. aviculare J. C. Roos 1953-3-31 5911 San Bernardino Loma Linda. 320 Comment
  RSA85160  Eragrostis cilianensis J. C. Roos, A. R. Roos 1950-8-5 490 San Bernardino North slopes Clark Mts.,1 mile S.W. of Coliseum Mine, eastern Mohave Desert. 1646 Comment
  RSA85489  Phalaris minor J. C. Roos 1952-4-21 5564 San Bernardino Loma Linda 305 Comment
  RSA92459  Herniaria hirsuta subsp. cinerea J. C. Roos 1954-6-5 6123 San Bernardino Loma Linda. 320 Comment
  RSA92590  Nemacladus rubescens J. C. Roos, L. Roos 1952-5-10 5363 San Bernardino 4 miles northwest of Adelanto, near Red Raven Mine. 823 Comment
  RSA92595  Microseris lindleyi J. C. Roos 1952-5-17 5674 San Bernardino Adelanto. 945 Comment
  RSA92721  Sisymbrium officinale J. C. Roos, L. Roos 1952-5-22 5708 San Bernardino Loma Linda. Comment
  RSA92738  Leptosiphon aureus J. C. Roos, L. Roos 1952-5-17 5673 San Bernardino Adelanto. 945 Comment
  RSA92770  Atriplex lentiformis J. C. Roos, L. Roos 1954-10-2 6252 San Bernardino 237 S Waterman. 320 Comment
  CAS-BOT-BC211669  Frankenia salina John C. Roos 1950-8-19 4941 San Diego Torrey Pines Park beach 4 Comment
  CAS-BOT-BC220749  Salvia clevelandii John Roos; Lucille Roos 1950-8-19 4943 San Diego Torrey Pines Park 60 Comment
  CAS-BOT-BC310878  Heterotheca sessiliflora subsp. sessiliflora John Roos; Lucille Roos 1950-8-19 4938 San Diego Torrey Pines beach 4 Comment
  CAS-BOT-BC340766  Laennecia coulteri J. C. Roos 1965-10-10 s.n. San Diego Otay Lake Comment
  CLARK-A1528-1151  Lupinus concinnus John C. Roos 1937-4-17 San Diego Lake Henshaw 822 Comment
  CLARK-A1528-1534  Ambrosia chenopodiifolia John C. Roos 1937-6-13 1441 San Diego San Ysidro Comment
  CLARK-A1528-1784  Corethrogyne filaginifolia var. peirsonii John C. Roos 1937-8-29 2550 San Diego Torrey Pines Comment
  CLARK-A1528-1786  Corethrogyne filaginifolia var. linifolia John C. Roos 1950-8-19 4942 San Diego Torrey Pines Park 60 Comment
  CLARK-A1528-1934  Hedypnois cretica John C. Roos 1956-5-5 6577 San Diego Comment
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Apr 23 2019
  CLARK-A1528-2211  Cryptantha barbigera John C. Roos 1937-4-18 San Diego In Comment
  CLARK-A1528-2382  Cleomella obtusifolia John C. Roos 1937-6-9 2384 San Diego Anza Borrego Desert State Park Comment
  CLARK-A1528-2433  Lomatium dasycarpum John C. Roos 1937-6-15 659 San Diego Julian Comment
  CLARK-A1528-2945  Centaurium venustum John C. Roos 1937-6-13 943 San Diego San Diego Comment
  CLARK-A1528-3085  Azolla filiculoides John C. Roos 1937-6-11 2012 San Diego otay reservoir Comment
  CLARK-A1528-3211  Ammannia coccinea John C. Roos 1937-8-30 2567 San Diego Sweetwater Lake Comment
  CLARK-A1528-4076  Selaginella cinerascens John C. Roos 1937-6-16 1229 San Diego Hodges Lake Comment
  CLARK-A1528-4575  Chloris virgata John C. Roos 1965-10-10 San Diego Cleveland Mountains Comment
  CLARK-A1528-4673  Gastridium ventricosum John C. Roos 1937-5-10 2080 San Diego San Juan Capistrano Comment
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Nov 9 2016
  CLARK-A1528-5025  Solanum triflorum John C. Roos 1937-6-7 1453 San Diego Aquanea Comment
  CLARK-A1528-5105  Nama stenocarpa John C. Roos 1937-6-17 512 San Diego San Luis Rey Comment
  POM265687  Lupinus concinnus subsp. concinnus J. C. Roos 1937-6-10 1779 San Diego Jacumba. Comment
  POM265688  Hoffmannseggia glauca J. C. Roos 1937-6-8 941 San Diego San Felipe Valley, east of Julian. Comment
  POM266634  Brodiaea terrestris subsp. kernensis J. C. Roos 1937-6-14 2241 San Diego near Descanso Junction Comment
  POM301485  Plantago virginica J. C. Roos 1937-6-13 1709 San Diego San Isidro Comment
Read comments
May 24 2009
  RSA262779  Hoffmannseggia glauca J. C. Roos 1936-5-3 710 San Diego San Felipe Valley, west edge Colorado Desert. Comment
  RSA431194  Hedypnois cretica J. C. Roos 1956-5-5 6577 San Diego Marlborough and Adams, San Diego. Comment
  RSA450058  Panicum hirticaule subsp. hirticaule J. C. Roos 1965-10-17 s.n. San Diego De Luz Canyon: Along De Luz-Murrieta Road and De Luz Creek. 150 Comment
  RSA450132  Echinodorus berteroi J. C. Roos 1965-10-10 s.n. San Diego Otay Lake Comment
  RSA450490  Hemizonia floribunda J. C. Roos 1965-10-10 s.n. San Diego 8 mi SE of Dulzura. Comment
  RSA48691  Allophyllum glutinosum J. C. Roos 1949-7-30 4597 San Diego North of Pala. Comment
  RSA86901  Chenopodium macrospermum var. farinosum J. C. Roos, L. Roos 1950-8-19 4939 San Diego Torrey Pines beach. 3 Comment
  RSA86904  Corethrogyne filaginifolia J. C. Roos 1950-8-19 4942 San Diego Torrey Pines Park. 60 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
  UCR23404  Hydrocotyle ranunculoides John C. Roos 1937-6-16 1231 San Diego Peninsular Range, 5 miles west of Santa Ysabel Comment
  UCR23430  Thysanocarpus laciniatus John C. Roos 1955-3-26 6279 San Diego Peninsular Range, Moosa Canyon near dam, along Hwy 395, 10 miles north of Escondido 152 Comment
  UCR23752  Arceuthobium campylopodum John C. Roos 1937-6-14 1240 San Diego Peninsular Range, Near Cuyamaca Lake Comment
  UCR23813  Hemizonia floribunda John C. Roos 1965-10-10 s.n. San Diego Peninsular Range, 8 miles southeast of Dulzura [along Hwy 94, near Tecate Peak] Comment
  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
  UCR23859  Ericameria palmeri var. palmeri John C. Roos 1965-10-9 s.n. San Diego La Mesa Comment
  UCR23951  Vachellia farnesiana var. minuta John C. Roos 1937-8-30 2560 San Diego 1 mi SW of Otay 122 Comment
  UCR26089  Porophyllum gracile John C. Roos 1937-6-10 959 San Diego Peninsular Range, Jacumba Comment
  UCR26105  Mentzelia hirsutissima John C. Roos 1937-4-18 s.n. San Diego Peninsular Range/Sonoran (Colorado) Desert, In-ko-pah, western edge of Colorado Desert Comment
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Sep 26 2011
  UCR26251  Ammannia coccinea John C. Roos 1937-6-14 926 San Diego La Mesa Comment
  UCR26260  Apiastrum angustifolium John C. Roos 1937-4-18 s.n. San Diego Peninsular Range/Sonoran (Colorado) Desert, In-ko-pah, western edge of Colorado Desert Comment
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Sep 26 2011
  UCR30512  Pinus torreyana John C. Roos 1937-6-16 2224 San Diego Southern Coastal Plain, Torrey Pines Ridge, Del Mar 137 Comment
  UCR30554  Brodiaea terrestris subsp. kernensis John C. Roos 1937-6-14 2241 San Diego Peninsular Range, Near Descanso Junction Comment
  UCR30571  Chrysopsis villosa var. sessiliflora John C. Roos 1949-7-30 4587 San Diego Peninsular Range, Palomar Mtn, near the observatory 1616 Comment
  UCR30811  Streptanthus bernardinus John C. Roos 1937-6-15 2218 San Diego Peninsular Range, hills near Julian Comment
  UCSB42185  Pluchea odorata Roos, John 1965-10-10 San Diego Otay Lake Comment
  UCSB51397  Eragrostis curvula Roos, John 1965-10-10 San Diego Hwy. 395; 0.1 miles south of the San Diego/Riverside county line Comment
  CLARK-A1528-3888  Ceanothus greggii subsp. perplexans John C. Roos 1937-5-18 1663 San Diego Comment
  POM301613  Linanthus orcuttii J. C. Roos 1937-6-18 1233 San Diego Palomar Mountain. Comment
  RSA0110651  Polygonum coccineum J. C. Roos 1937-8-30 2566 San Diego Sweetwater Lake Comment
  RSA659716  Hedypnois cretica J. C. Roos 1956-5-5 s.n. San Diego Marlborough and Adams, San Diego. Comment
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Apr 23 2019
  UCR19196  Navarretia squarrosa John C. Roos 1950-7-20 4863 San Francisco San Francisco Bay Region, San Francisco City College 91 Comment
  UCR24180  Marah fabacea John C. Roos 1950-7-19 4858 San Francisco San Francisco Bay Region, San Francisco, Santiago St. and 22nd Ave. 61 Comment
  UCR25089  Eragrostis mexicana subsp. virescens Alfred R. Roos 1938-7-31 10015 San Joaquin Lodi 15 Comment
  CLARK-A1528-4774  Oryzopsis miliacea John C. Roos, Lucille Roos 1953-11-29 6043 San Luis Obispo San Luis Obispo 91 Comment
  UCR25091  Helenium puberulum John C. Roos, L. Roos 1954-12-26 6270 San Luis Obispo Central Coast, 2 mi south of Morro Bay near the mouth of a coastal canyon. 6 Comment
  POM266620  Gastridium phleoides J. C. Roos 1937-7-4 1771 San Luis Obispo Lower Cuyama Valley. Comment
  CLARK-A1528-2902  Quercus lobata John C. Roos 1937-7-1 1928 Santa Barbara Solvang Comment
  CLARK-A1528-3417  Romneya coulteri John C. Roos 1937-7-5 1772 Santa Barbara Cuyama Valley Comment
  CLARK-A1528-4767  Muhlenbergia rigens John C. Roos 1937-7-2 2397 Santa Barbara Los Olivos Comment
  UCR19236  Baccharis pilularis John C. Roos 1948-8-26 3968 Santa Barbara El Capitan State Beach 38 Comment
  UCR26212  Galium bolanderi John C. Roos 1937-7-4 1421 Santa Barbara Lower Cuyama Valley Comment
  UCR30485  Keckiella breviflora John C. Roos 1937-7-4 336 Santa Barbara Lower Cuyama Valley Comment
  UCR30513  Monardella villosa John C. Roos 1937-7-4 335 Santa Barbara Lower Cuyama Valley Comment
  CLARK-A1528-1452  Sanicula tuberosa John C. Roos 1937-3-26 Santa Barbara Cuyama Valley 30 miles east of Santa Maria Comment
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Oct 26 2015
  CLARK-A1528-2262  Plagiobothrys nothofulvus John C. Roos 1937-3-26 1836 Santa Barbara Cuyama Valley Comment
  CLARK-A1528-2879  Trifolium gracilentum John C. Roos 1937-3-26 1698 Santa Barbara Cuyama Valley Comment
  CLARK-A1528-3970  Adenostoma fasciculatum John C. Roos 1937-3-26 Santa Barbara Cuyama River Comment
  CLARK-A1528-4891  Quercus turbinella John C. Roos 1937-7-5 479 Santa Barbara Comment
Read comments
Oct 23 2014
  POM266624  Sporobolus airoides J. C. Roos 1937-7-4 1919 Santa Barbara Upper Cuyama Valley Comment
  POM266897  Leymus condensatus J. C. Roos 1937-7-5 1773 Santa Barbara Upper Cuyama Valley. Comment
  RSA659712  Helianthus bolanderi J. C. Roos 1956-8-4 6592 Santa Barbara 2 mi S.E. of Figueroa Mtn., along Mission Pine rd. 1220 Comment
  UCR31737  Ericameria arborescens John C. Roos 1948-8-27 3966 Santa Cruz Santa Cruz Mtns, east of Big Basin Comment
  CLARK-A1528-1219  Penstemon lemmonii John C. Roos 1948-8-31 3927 Shasta Sacramento River 914 Comment
  CLARK-A1528-7822  Sorbus scopulina John C. Roos 1948-9-1 3984 Siskiyou Etna Comment
  CLARK-A1528-7828  Claytonia sibirica John C. Roos 1948-9-1 3982 Siskiyou Etna Comment
  CLARK-A1528-7877  Helianthus bolanderi John C. Roos 1948-9-1 3981 Siskiyou Fort Jones 853 Comment
  LA102190  Danthonia californica John C. Roos; 1965-8-1 sn Siskiyou Marble Mountains, Middle Sky High Lake Comment
  RSA44888  Brickellia greenei J. C. Roos 1948-9-2 3975 Siskiyou 5 mi SW of Yreka. Comment
  RSA44901  Pyrrocoma racemosa var. pinetorum J. C. Roos 1948-9-1 3954 Siskiyou Near Fort Jones. 854 Comment
  UCR19259  Brickellia greenei John C. Roos 1948-9-2 3975 Siskiyou 5 mi SW of Yreka Comment
  UCR19715  Solanum physalifolium var. nitidibaccatum John C. Roos 1948-9-1 3988 Siskiyou Ft. Jones 838 Comment
  UCR26232  Claytonia sibirica John C. Roos 1948-9-1 3982 Siskiyou high ridge SW of Etna Comment
  UCR34454  Helianthus bolanderi John C. Roos 1948-9-1 3981 Siskiyou Near Fort Jones 854 Comment
  RSA44887  Penstemon roezlii J. C. Roos 1948-9-2 3947 Siskiyou 6 miles SW of Yreka. Comment
  UCR19522  Datura stramonium var. tatula John C. Roos 1948-8-28 3987 Sonoma North Coast Ranges, Healdsburg 33 Comment
  UCR23636  Rhododendron occidentale John C. Roos 1957-7-2 6645 Sonoma Miller Ridge Comment
  UCR25335  Centaurium muehlenbergii John C. Roos 1957-7-3 6652 Sonoma North Coast Ranges, Healdsburg 33 Comment
  UCR30559  Baccharis glutinosa John C. Roos 1948-8-28 3959 Sonoma North Coast Ranges, near Healdsburg 31 Comment
  UCR30831  Calycanthus occidentalis John C. Roos 1948-8-28 3956 Sonoma North Coast Ranges, Barrel Spring, Mill Creek, near Healdsburg 292 Comment
  CAS-BOT-BC229545  Collomia diversifolia J. C. Roos 1950-7-22 4873 Sonoma 2 miles E of Duncan Mills 60 Comment
  UCSB45518  Zeltnera muehlenbergii Roos, John 1957-7-3 Sonoma Healdsberg Comment
  CLARK-A1528-4416  Arceuthobium abietinum John C. Roos 1965-8-21 Tulare Sequoia Comment
  RSA450494  Holocarpha heermannii J. C. Roos 1965-8-21 s.n. Tulare Middle Fork of Kaweah River Canyon, W of Sequoia National Forest. Comment
  UCR23860  Quercus wislizeni John C. Roos 1965-8-21 s.n. Tulare Sierra Nevada Mtns., Middle Fork of Kaweah River Canyon, west of Sequoia National Forest Comment
  UCSB42158  Quercus wislizeni var. wislizeni Roos, John 1965-8-21 Tulare Middle fork of the Kaweah River, west of Sequoia National Park Comment
  RSA450742  Lessingia leptoclada J. C. Roos 1965-8-21 s.n. Tulare Kaweah River Canyon, west of Sequoia National Park 610 Comment
  GH341022  Swallenia alexandrae J. C. Roos 1955-5-13 6365 Unknown west side Eureka Valley at mouth of Marble Canyon. 1036 Comment
  GH341098  Aristida purpurea var. nealleyi J. C. Roos 1955-5-13 6338 Unknown west base Las Chance Mts., east of Eureka Valley sand dunes. 1219 Comment
  GH346323  Prunus andersonii J. C. Roos 1955-5-15 6370 Unknown Willow Spring, Last Chance Mts. 1828 Comment
  GH355759  Muhlenbergia porteri J. C. Roos 1955-5-13 6341 Unknown west base of Last Chance Mts., east of Eureka Valley sand dunes. 1219 Comment
  GH361687  Bromus berteroanus J. C. Roos 1955-5-13 6330 Unknown west base Last Chance Mts., east of Eureka Valley sand dunes. 1219 Comment
  GH365879  Cordylanthus tecopensis J. C. Roos & L. Roos 1954-9-14 6231 Unknown flats along Amargosa River bottom 3 miles south of Shoshone. 432 Comment
  GH365881  Cordylanthus tecopensis J. C. Roos & A. R. Roos 1954-6-13 6139 Unknown Amargosa desert 3 miles NE of Death Valley Junction, along Ash Meadows road. 624 Comment
  GH366290  Astragalus inyoensis J. C. Roos 1955-5-15 6371 Unknown 0.5 miles west of Willow Spring. Last Chance Mts. 1767 Comment
  GH369131  Psorothamnus arborescens J. C. Roos 1955-5-13 6332 Unknown west base Last Chance Mts., east of Eureka Valley sand dunes 1158 Comment
  GH379229  Draba californica J. C. Roos & L. Roos 1951-8-10 5136 Unknown McAfee Meadow, White Mts. 3657 Comment
  GH384941  Frasera puberulenta J. C. Roos & L. Roos 1952-7-26 5824 Unknown east side Reed Flat at head of Birch Creek, White Mts. 3048 Comment
  GH387226  Ericameria albida J. C. Roos & A. R. Roos 1954-8-15 6224 Unknown Lower Warm Spring, Saline Valley 426 Comment
  GH402627  Lycium cooperi J. C. Roos 1955-5-15 6381 Unknown Willow Creek, Last Chance Mts. 1645 Comment
  GH427361  Schkuhria multiflora J. C. Roos 1950-9-1 4955 Unknown Coliseum Mine, Clark Mts., eastern Mohave Desert 1615 Comment
  GH427609  Lepidospartum latisquamum J. C. Roos 1950-9-3 4971 Unknown canyon on south slope Clark Mtn., N.W. of Mountain Pass, eastern Mohave Desert 1889 Comment
  GH443029  Chaetadelpha wheeleri J. C. Roos & A. R. Roos 1954-8-13 6208 Unknown southeast end Eureka Valley 944 Comment
  GH58799  Astragalus lentiginosus var. micans J. C. Roos 1955-5-13 6354 Unknown [southeast end of Eureka Valley, east of Inyo Mountains] 3050 ft Comment
  GH385952  Galium matthewsii J. C. Roos 1955-5-16 6385 Unknown along Loretto road 1.5 miles southwest of Loretto Mine, Inyo Mts. 1676 Comment
  CLARK-A1528-3186  Calochortus catalinae John C. Roos 1956-4-8 6573 Ventura Santa Monica Mountains Comment
  CLARK-A1528-4163  Antirrhinum kelloggii John C. Roos 1956-4-8 6574 Ventura Potrero Valley Comment
  CLARK-A1528-4166  Antirrhinum nuttallianum John C. Roos 1956-4-8 6575 Ventura Potrero Valley Comment
  RSA449974  Eriogonum crocatum J. C. Roos 1958-5-22 s.n. Ventura Conejo grade summit on N. base of Santa Monica Mtns. Comment
Read comments
Jan 16 2016
  UCD99841  Eriogonum crocatum J. C. Roos 1958-5-22 s.n. Ventura Conejo grade summit on N. base of Santa Monica Mountains. Comment
  UCR23582  Amsinckia menziesii John C. Roos 1956-4-8 6576 Ventura Western Transverse Range, Potrero Valley; north slope of Boney Mountain Comment
  CAS-BOT-BC132310  Calochortus catalinae J. C. Roos 1956-4-8 6573 Ventura North slope of Bony Mtn., Potrero Valley Comment
  POM266272  Parapholis incurva J. C. Roos 1937-6-29 1482 Ventura Southeast of Oxnard Comment
  POM301693  Echinochloa crus-galli J. C. Roos 1937-7-6 1427 Ventura Fillmore. Comment
  RSA301543  Garrya elliptica John Roos 1937-7-5 1425 Ventura Wheelers Springs. Comment
  UCSB41539  Antirrhinum kelloggii Roos, John 1956-4-8 Ventura North slope of the Bony Mtns; Potrero Valley Comment
  POM266621  Agrostis avenacea J. C. Roos 1939-7-3 1518 Yuba Marysville. Comment



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