Search Results — 558 specimen records retrieved (485 records with coordinates)
Results for search: Scientific name=Rhododendron columbianum (including nomenclatural synonyms);   More information: Jepson Online Interchange
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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/consortium/).
 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
  POM132215  Ledum glandulosum subsp. columbianum A. D. E. Elmer 1903-07 4944 Marin Point Reyes Post Office. Comment
  POM227006  Ledum glandulosum subsp. columbianum Roxana S. Ferris, Ira L. Wiggins, R. T. Ferris 1935-7-19 8086 Marin Summit of divide between Inverness and Point Reyes Lighthouse, 2.5 miles from Inverness. Comment
  POM89961  Ledum glandulosum subsp. columbianum L. R. Abrams 1922-6-27 8522 Del Norte Gasquet to Patricks on Crescent City - Grants Pass Road. Comment
  RSA106768  Ledum glandulosum subsp. columbianum L. S. Rose 1955-6-2 55058 Sonoma Pitkin Marsh, w. of Vine Hil Road, 10 mi. w. of Santa Rosa. 30 Comment
  RSA134178  Ledum glandulosum subsp. columbianum P. C. Everett, E. K. Balls, George B. Everett 1959-10-27 23989 Mendocino Boyd Ranch, Little River. 175 Comment
  RSA170974  Ledum glandulosum subsp. columbianum R. F. Thorne, Percy C. Everett, K. Thorne 1964-10-18 34158 Mendocino (Ross Marsh), ca. 7 miles north of Fort Bragg, west of Hwy 1, near Grange Hall. Comment
  RSA246704  Ledum glandulosum subsp. columbianum R. F. Thorne 1965-9-20 35495 Del Norte Along Old Gasquet Toll Road, ca. 5 mi. ENE of Gasquet. 610 Comment
  RSA249507  Ledum glandulosum subsp. columbianum R. F. Thorne, Percy C. Everett, K. Thorne 1965-8-9 35295 Humboldt Big Lagoon. 3 Comment
  RSA467604  Ledum glandulosum subsp. columbianum Charlotte M. Hoak 1931-7-8 s.n. Mendocino Mendocino Barrens Comment
  RSA546  Ledum glandulosum subsp. columbianum J. T. Howell 1927-8-25 703 Mendocino Near Fort Bragg. Comment
  RSA639197  Ledum glandulosum subsp. columbianum Gary D. Wallace 1988-4-10 2803 Mendocino University of California Pygmy Forest Reserve, 3.2 km SE of Mendocino. 180 Comment
  RSA639211  Ledum glandulosum subsp. columbianum Gary D. Wallace 1988-4-12 2817 Del Norte North of Gasquet: South side of Stoney Creek at junction with Smith River. Comment
  RSA71060  Ledum glandulosum subsp. columbianum L. S. Rose 1951-6-7 51015 Sonoma Pitkin Marsh, 5 miles N of Sebastopol. Comment
  SD62079  Ledum glandulosum subsp. columbianum Darley F. Howe 1965-7-31 4095 Santa Cruz Bonnie Doon Area, 0.9 mile from Pine Flat Road on Martin Road. 455 Comment
  POM187319  Ledum glandulosum subsp. columbianum Marcus E. Jones 1931-7-7 29074 Mendocino Mendocino pine barrens. Comment
  POM193962  Ledum glandulosum subsp. columbianum J. T. Howell 1927-8-25 3063 Mendocino 3 miles east of Ft. Bragg. Comment
  POM210631  Ledum glandulosum subsp. columbianum Joseph A. Ewan 1933-10-22 8053 Marin Cold Bog, Pt. Reyes Penisula. Comment
  POM219886  Ledum glandulosum subsp. columbianum L. R. Abrams 1920-7-1 7554 Mendocino Pine Barrens, Fort Bragg. Comment
  POM287041  Ledum glandulosum subsp. columbianum Lyman Benson 1929-6-18 1789 Del Norte Redwood Highway about 30 miles north of Crescent City. Comment
  POM318849  Ledum glandulosum subsp. columbianum Patricia Wilder 1968-8-21 4385 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 Comment
  POM77415  Ledum glandulosum subsp. columbianum G. R. Vasey s.n. Unknown [Unspecified] Comment
  POM89468  Ledum glandulosum subsp. columbianum L. R. Abrams 1922-6-21 8155 Mendocino 6 mi. from Ukiah to Ukiah-Mendocino City Rd. via Low Gap Road. Comment
  RSA121955  Ledum glandulosum subsp. columbianum B. O. Schreiber 1936-6-21 2248 Marin Shell Beach on Tomales Bay. 2 Comment
  RSA15543  Ledum glandulosum subsp. columbianum C. B. Wolf 1927-9-1 1326 Mendocino Pine Barrens 3 mi. S from Fort Bragg on the Willits road. Comment
  RSA170021  Ledum glandulosum subsp. columbianum R. F. Thorne, Percy C. Everett, K. Thorne 1964-10-19 34193 Mendocino 0.5 miles N of Hwy 20 on Summer Lane, ca. 2 miles SE of Ft. Bragg. Comment
  RSA1914  Ledum glandulosum subsp. columbianum C. B. Wolf 1930-10-31 1046 Mendocino Pine barrens 3 miles from Fort Bragg, just off road to Willits, near the sphagnum bog. 61 Comment
  RSA203874  Ledum glandulosum subsp. columbianum M. S. Jussel 1933-7-30 s.n. Marin Near Inverness Comment
  RSA212182  Ledum glandulosum subsp. columbianum L. S. Rose 1969-7-5 69075 Mendocino Point Arena. 15 Comment
  RSA23872  Ledum glandulosum subsp. columbianum E. K. Balls, Percy C. Everett, B. K. Balls 1953-10-10 18607 Mendocino 2.5 mi. e. along road from Fort Bragg to Willits. 122 Comment
  RSA24379  Ledum glandulosum subsp. columbianum C. B. Wolf 1941-2-23 4011 Del Norte Siskiyou Mountains between High and Low Divide 610 Comment
  RSA244506  Ledum glandulosum subsp. columbianum Larry E. DeBuhr, Gary D. Wallace 1973-9-15 1210 Del Norte North of Gasquet, along east side of Middle Fork Gasquet Road Comment
  RSA3040  Ledum glandulosum subsp. columbianum C. B. Wolf 1931-8-22 1214 Marin 3 miles west of Inverness on road to Pt. Reyes (1/2 mmi. w. of summit of grade). 91 Comment
  RSA46673  Ledum glandulosum subsp. columbianum Doris Kildale Gillespie 1937-8-10 15229 Del Norte High Divide. Comment
  RSA467602  Ledum glandulosum subsp. columbianum M. S. Jussel 1933-7-30 s.n. Marin Near Inverness Comment
  RSA69231  Ledum glandulosum subsp. columbianum F. W. Peirson 1923-7-7 3796 Mendocino 2 miles east of Mendocino City. Comment
  RSA69232  Ledum glandulosum subsp. columbianum Joseph A. Ewan 1933-10-22 8053 Marin Cold Bog, Pt. Reyes Penisula. Comment
  RSA78052  Ledum glandulosum subsp. columbianum P. A. Munz 1952-6-26 17796 Del Norte Humboldt Flat south of Adams Station, Siskiyou Mts. 671 Comment
  RSA8236  Ledum glandulosum subsp. columbianum Elmer I. Applegate 1927-8-17 5269 Del Norte French Hill, Smith River region Comment
  SD56874  Ledum glandulosum subsp. columbianum Darley F. Howe 1963-7-7 3615 Del Norte 18 mile Creek, 11.2 miles north of south entrance to 6 Rivers National Forest on Highway 199. 149 Comment
  SEINET10482557  Ledum glandulosum subsp. columbianum Lewis S. Rose 1969-7-5 Rose 69075 Mendocino Point Arena. Coastal Bogs ca alt. 50 feet. Comment
  A362989  Rhododendron columbianum H. M. Pollard 1944-7-24 Unknown Horseshoe Lake Comment
  A362990  Rhododendron columbianum G. T. Robbins 1943-7-25 1288 Unknown Common around shore of small lake on rocky slopes above eastern shore of Medley Lakes Reservoir, Desolation Valley Primitive Area 2590 Comment
  A362997  Rhododendron columbianum R. McVaugh 1941-7-31 6178 Unknown Tomales Point, 1.5 mi. s.w. of Indian Beach Comment
  A363004  Rhododendron columbianum J. T. Howell 1940-8-5 16013 Unknown Reflection Lake Comment
  A363005  Rhododendron columbianum J. T. Howell 1943-7-23 18740 Unknown Between Donner Pass and West Lake Comment
  A363010  Rhododendron columbianum C. L. Hitchcock & J. S. Martin 1939-7-11 5373 Unknown ca. 11 miles north of Dedrick, east shore of upper Canyon Creek Lake 1981 Comment
  A363017  Rhododendron columbianum L. Rowntree 1934-5-9 Unknown Gasquet Comment
  A363018  Rhododendron columbianum M. S. Baker 1904-7-3 Unknown Fallen Leaf Lake, Lake Tahoe Region Comment
  A363019  Rhododendron columbianum A. Eastwood 1922-6-28 11413 Unknown Mendocino City Comment
  A363029  Rhododendron columbianum A. Rehder 1904-8-24 Unknown Siskiyou Mtns 1219 Comment
  A363030  Rhododendron columbianum J. L. Huber 1970-9-1 1115 Unknown Skelton Lake, Mammoth Lakes region, Sierra Nevada Mountains 3048 Comment
  A363038  Rhododendron columbianum A. A. Heller 1903-7-29 7046 Unknown Above Donner Lake toward Donner Pass Comment
  A363041  Rhododendron columbianum George Hansen X 1893 794 Unknown Carson Spur 2590 Comment
  A363042  Rhododendron columbianum W. R. Dudley 1898-11-01 - 1898-12-01 Unknown Point Reyes Ridge Comment
  A363043  Rhododendron columbianum A. A. Heller 1919-7-30 13339 Unknown Meek's bay, Lake Tahoe 1859 Comment
  A363047  Rhododendron columbianum J. T. Howell 1942-7-29 17363 Unknown Little Five Lakes Basin Comment
  A363048  Rhododendron columbianum L. Abrams 1911-7-29 4855 Unknown Gilmore Lake 2529 Comment
  A363049  Rhododendron columbianum R. C. Bacigalupi 1927-7-10 1693 Unknown meadow about 1/4 mile below outlet of Song Lake along Gray Eagle Creek 1828 Comment
  CAS-BOT-BC209994  Rhododendron columbianum James R. Shevock 1981-8-30 9017 Tulare Southern Sierra Nevada, Sequoia National Forest. Kern Plateau. Stringers of Sirretta Meadow. Off of forest trail 34E12, east slope of Sirretta Pass, Little Trout Creek drainage 2743 Comment
  CAS-BOT-BC258340  Rhododendron columbianum LeRoy Gross; Joshua Paolini; Aaron C. Sedgwick 2012-7-25 5708 Tulare Sierra Nevada; Southern Sierra Nevada region: Floristic inventory of the Jennie Lakes Wilderness: Poison Meadow, west from Weaver Lake, and Shell Mountain 2561 Comment
  CAS-BOT-BC419728  Rhododendron columbianum Julie Kierstead Nelson; Martin Lenz; Rhonda Posey 2014-8-13 2014 -080 Siskiyou Lower Parks Creek Lake margin. 1 mile NE of China Mountain, eastern Klamath Ranges. 2200 Comment
  CAS-BOT-BC53727  Rhododendron columbianum L. R. Abrams 1922-6-21 8155 Mendocino 6 mi. from Ukiah on Ukiah-Mendocino City Road via Low Gap Road Comment
  CAS-BOT-BC53728  Rhododendron columbianum L. R. Abrams 1920-7-1 7554 Mendocino Pine Barrens Fort Bragg Comment
  CAS-BOT-BC53729  Rhododendron columbianum Marcus E. Jones 1931-7-7 29074 Mendocino Mendocino pine barrens Comment
  CAS-BOT-BC53730  Rhododendron columbianum A. Head 1922-7-6 s.n. Mendocino Prairies Fort Bragg Comment
  CAS-BOT-BC53731  Rhododendron columbianum A. Head 1922-7-6 s.n. Mendocino Prairies near Fort Bragg Comment
  CAS-BOT-BC53732  Rhododendron columbianum Jas. McMurphy 1903-6-1 84 Mendocino Near Mendocino Comment
  CAS-BOT-BC53733  Rhododendron columbianum Carl B. Wolf 1927-9-1 1326 Mendocino 3 miles south of Fort Bragg on Willits Road Comment
  CAS-BOT-BC53734  Rhododendron columbianum Carl B. Wolf 1930-10-31 1046 Mendocino Pine Barrens 3 miles from Fort Bragg just off road to Willits. 60 Comment
  CAS-BOT-BC53735  Rhododendron columbianum Carl B. Wolf 1930-10-31 1046 Mendocino Pine Barrens 3 miles from Fort Bragg just off road to Willits. 60 Comment
  CAS-BOT-BC53736  Rhododendron columbianum Dorothy Parker 1959-7-20 738 Siskiyou Below Rock Fence Lake 1981 Comment
  CAS-BOT-BC53737  Rhododendron columbianum John Thomas Howell 1937-7-24 13423 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  CAS-BOT-BC53738  Rhododendron columbianum Elizabeth McClintock; Wayne Roderick; Martha Roderick 1967-7-29 s.n. Siskiyou A ledum swamp just below Mumbo Lake, Trinity Mts. 1828 Comment
  CAS-BOT-BC53739  Rhododendron columbianum Gilbert J. Muth 1969-8-10 1349 Siskiyou Buckhorn Lake, along shore 2255 Comment
  CAS-BOT-BC53740  Rhododendron columbianum Mary P. Wells 1985-10-4 670 Sonoma pygmy forest south of Gualala River and east of Coast Highway Comment
  CAS-BOT-BC53742  Rhododendron columbianum Peter Rubtzoff 1951-6-2 106 Sonoma Pitkin Marsh, near Forestville - Western branch of the Upper Marsh Comment
  CAS-BOT-BC53743  Rhododendron columbianum Peter Rubtzoff 1951-7-22 540 Sonoma Pitkin Marsh, near Forestville - Northern half of Lower Marsh Comment
  CAS-BOT-BC53744  Rhododendron columbianum Peter Rubtzoff 1951-6-2 106 Sonoma Pitkin Marsh, near Forestville - Western branch of the Upper Marsh Comment
  CAS-BOT-BC53745  Rhododendron columbianum Lewis S. Rose 1955-6-2 55058 Sonoma Pitkin Marsh, w. of Vine Hill Road, 10 mi. w. of Santa Rosa 30 Comment
  CAS-BOT-BC53746  Rhododendron columbianum Ella Dales Cantelow 1941-6-7 3643 Sonoma 5 mi. n. of Fort Ross. Hwy 1 Comment
  CAS-BOT-BC53747  Rhododendron columbianum Mrs. H. C. Cantelow 1941-6-7 s.n. Sonoma 5 mi. n. of Fort Ross. Hwy 1 Comment
  CAS-BOT-BC53751  Rhododendron columbianum John Thomas Howell 1924-7-28 502 Mariposa Yosemite Park - Johnson Lake Comment
  CAS-BOT-BC53752  Rhododendron columbianum John Thomas Howell 1927-8-25 3063 Mendocino Mendocino Coastal Plain, 3 miles east of Ft. Bragg Comment
  CAS-BOT-BC53753  Rhododendron columbianum J McMurphy 1902-5-29 s.n. Mendocino Albion Ridge Comment
  CAS-BOT-BC53754  Rhododendron columbianum W. C. Mathews 1913-10-1 s.n. Mendocino Ft. Bragg Comment
  CAS-BOT-BC53755  Rhododendron columbianum H. A. Thomas; J. H. Thomas 1955-6-26 s.n. Mendocino Coastal bluffs near State Highway 1, 2 miles NW of Anchor Bay 30 Comment
  CAS-BOT-BC53756  Rhododendron columbianum Hazelle A. Thomas; J. H. Thomas 1955-6-26 678 Mendocino Pine Barrens about 3 miles southeast of town of Fort Bragg. 91 Comment
  CAS-BOT-BC53757  Rhododendron columbianum Lewis S. Rose 1969-7-5 69075 Mendocino Point Arena 15 Comment
  CAS-BOT-BC53758  Rhododendron columbianum Gordon H. True 1968-3-23 4107 Mendocino 2 miles north of Point Arena between Coast Highway and the ocean. 15 Comment
  CAS-BOT-BC53760  Rhododendron columbianum Anna Head 1921-5-24 s.n. Mendocino Mendocino City Comment
  CAS-BOT-BC53761  Rhododendron columbianum Mrs. H. C. Cantelow 1941-6-9 s.n. Mendocino 3 miles east of Point Arena, on road to the Garcia River Comment
  CAS-BOT-BC53762  Rhododendron columbianum Mrs. H. C. Cantelow 1941-6-9 3642 Mendocino 3 miles east of Point Arena, on road to the Garcia River Comment
  CAS-BOT-BC53763  Rhododendron columbianum Miss. A. Eastwood 1894-7-1 s.n. Mendocino Near fort Bragg Comment
  CAS-BOT-BC53764  Rhododendron columbianum Gwendolan Newell 1914-5-3 s.n. Mendocino Fort Bragg Comment
  CAS-BOT-BC53765  Rhododendron columbianum P. Monnet 1913-5-1 690 Mendocino Near Fort Bragg Comment
  CAS-BOT-BC53766  Rhododendron columbianum Carl D. Duncan 1920-7-13 250 Mendocino Fort Bragg Comment
  CAS-BOT-BC53767  Rhododendron columbianum Alice Eastwood 1922-6-27 11413 Mendocino Mendocino City Comment
  CAS-BOT-BC53768  Rhododendron columbianum Alice Eastwood 1912-8-8 1651 Mendocino Fort Bragg Comment
  CAS-BOT-BC53769  Rhododendron columbianum D. E. Breedlove 1962-6-6 2957 Mendocino Along road to Comptche, 4.0 miles west of Little River 198 Comment
  CAS-BOT-BC53770  Rhododendron columbianum H. E. McMinn s.n. Mendocino unspecified Comment
  CAS-BOT-BC53771  Rhododendron columbianum Gladys L. Smith 1978-8-15 5048 Mendocino Jackson State Forest in back of Mendocino City 243 Comment
  CAS-BOT-BC53772  Rhododendron columbianum Clare R. Wheeler; Gladys L. Smith 1981-7-30 2707 Mendocino Sphagnum bog off summers Lane N. of Hwy. 20. 2 mi. E of Hwy. 1, S of Ft. Bragg. 91 Comment
  CAS-BOT-BC53773  Rhododendron columbianum Clare R. Wheeler; Gladys L. Smith 1981-7-30 7241 -A Mendocino Drosera Bog, Summers Lane, 3.2 km. e. of Shoreline Hwy. 76 Comment
  CAS-BOT-BC53774  Rhododendron columbianum Gladys L. Smith 1979-5-23 5290 Mendocino Growing along Albion-Little river road west side of county airport. 182 Comment
  CAS-BOT-BC53775  Rhododendron columbianum Gladys L. Smith; Clare R. Wheeler 1979-2-7 5098 Mendocino Boggy swale on W. side of Rte. 1, 1.5 mi. north of Ft. Bragg. 45 Comment
  CAS-BOT-BC56509  Rhododendron columbianum D. E. Boufford 1973-7-27 11027 Del Norte Gasquet Forks Road, 1.6 km (1 mile) north of U.S. route 199 Comment
  CAS-BOT-BC56510  Rhododendron columbianum Lyman Benson 1929-6-18 1717 Del Norte Redwood Highway about 30 miles north of Crescent City. By Smith River Comment
  CAS-BOT-BC56511  Rhododendron columbianum Ynez Whilton Winblad 1941-6-29 s.n. Del Norte Between Crescent City and Oregon line Comment
  CAS-BOT-BC56512  Rhododendron columbianum Alice Eastwood 1912-9-11 2157 Del Norte trail to Black Butte Comment
  CAS-BOT-BC56513  Rhododendron columbianum Alice Eastwood 1923-8-5 12050 Del Norte Oregon boundary Comment
  CAS-BOT-BC56514  Rhododendron columbianum L. R. Abrams 1922-6-27 8522 Del Norte Gasquet to Patricks - Grants Pass - Crescent City Road Comment
  CAS-BOT-BC56515  Rhododendron columbianum L. R. Abrams 1922-6-27 8522 Del Norte Gasquet to Patricks, Crescent City - Grants Pass Road Comment
  CAS-BOT-BC56516  Rhododendron columbianum Doris Kildale 1931-6-15 10850 Del Norte Smith River, between bridges no. 2 & 3 Comment
  CAS-BOT-BC56517  Rhododendron columbianum Elmer I. Applegate 1922-9-13 3442 Del Norte Near Summit of Oregon Mountain Comment
  CAS-BOT-BC56518  Rhododendron columbianum Elmer I. Applegate 1927-8-17 5239 Del Norte French Hill, Smith River region Comment
  CAS-BOT-BC56519  Rhododendron columbianum Doris K. Kildale; L. B. Kildale 1930-6-8 9666 Del Norte French Hill 609 Comment
  CAS-BOT-BC56520  Rhododendron columbianum Doris K. Kildale 1926-7-4 2279 Del Norte Douglas Park, 9 miles east of Crescent City on Grants Pass road 60 Comment
  CAS-BOT-BC56521  Rhododendron columbianum Doris K. Kildale 1929-6-29 9954 Del Norte French Hill 609 Comment
  CAS-BOT-BC56522  Rhododendron columbianum Doris K. Kildale 1927-9-14 3962 Del Norte Douglas Park, 9 miles east of Crescent City, on Smith River Comment
  CAS-BOT-BC56523  Rhododendron columbianum Doris K. Kildale 1926-7-5 2308 Del Norte Smith River near Adams Station Comment
  CAS-BOT-BC56524  Rhododendron columbianum W. R. Dudley 1899-6-1 s.n. Del Norte Coast Meadow, Crescent City Comment
  CAS-BOT-BC56525  Rhododendron columbianum Gladys L. Smith 1960-6-17 1214 El Dorado Squaw Valley Comment
  CAS-BOT-BC56526  Rhododendron columbianum M. D. Morris 1923-8-7 61 El Dorado Eldorado National Forest, Bug Pasture 2438 Comment
  CAS-BOT-BC56527  Rhododendron columbianum G. E. Poore 1913-5-23 8645 El Dorado Tahoe National Forest, Buckeye Hill Comment
  CAS-BOT-BC56528  Rhododendron columbianum John Thomas Howell 1925-6-27 1215 El Dorado Rubicon Meadows, Lake Tahoe 2133 Comment
  CAS-BOT-BC56529  Rhododendron columbianum Dr. E. C. Van Dyke 1915-7-15 s.n. El Dorado Gilmore Lake, Lake Tahoe region Comment
  CAS-BOT-BC56530  Rhododendron columbianum M. E. Parsons 1910-7-25 s.n. El Dorado Eagle Falls, Lake Tahoe, West of Emerald Bay Comment
  CAS-BOT-BC56531  Rhododendron columbianum Alice Eastwood 1906-7-21 1200 El Dorado Half Moon Lake Comment
  CAS-BOT-BC56532  Rhododendron columbianum J. C. Hawthorne; F. E. Blaisdell 1899-7-1 s.n. El Dorado upper base of Mt. Tallac, near Lake Tahoe 2438 Comment
  CAS-BOT-BC56533  Rhododendron columbianum Catherine Best 1981-8-11 s.n. El Dorado Echo Lake 2255 Comment
  CAS-BOT-BC56534  Rhododendron columbianum Elsie Z. Lovegrove 1938-9-21 s.n. El Dorado Fallen Leaf Lake side of [Tamarac] Tamarack Trail Comment
  CAS-BOT-BC56535  Rhododendron columbianum D. Herrick; N. Houghton; J. Schever; A. Bloom 1967-7-24 s.n. El Dorado w. side of L. of Woods 2499 Comment
  CAS-BOT-BC56536  Rhododendron columbianum A. A. Heller 1919-7-30 13339 El Dorado Meek's bay, Lake Tahoe 1859 Comment
  CAS-BOT-BC56537  Rhododendron columbianum A. A. Heller 1916-8-9 12509 El Dorado Haypress meadow above Echo Lake 2590 Comment
  CAS-BOT-BC56538  Rhododendron columbianum A. A. Heller 1919-7-30 13339 El Dorado Meek's bay, Lake Tahoe 1859 Comment
  CAS-BOT-BC56539  Rhododendron columbianum A. A. Heller 1916-8-9 12509 El Dorado Haypress meadow above Echo Lake 2590 Comment
  CAS-BOT-BC56540  Rhododendron columbianum W. R. Dudley 1893-6-9 s.n. El Dorado Floating Island Lake, Mt. Tallac Comment
  CAS-BOT-BC56541  Rhododendron columbianum L. R. Abrams 1911-7-29 4855 El Dorado Gilmore Lake 2529 Comment
  CAS-BOT-BC56542  Rhododendron columbianum W. R. Dudley 1900-6-26 s.n. El Dorado Ridge below Lake Lucile Comment
  CAS-BOT-BC56543  Rhododendron columbianum Laura M. Lathrop 1909-7-21 s.n. El Dorado of lower Angora Lake Comment
  CAS-BOT-BC56544  Rhododendron columbianum E. A. McGregor 1909-8-13 109 El Dorado Susie Lake 2331 Comment
  CAS-BOT-BC56545  Rhododendron columbianum William M. Heusi 1930-7-24 23 Mono Slate Creek Valley, east of Mt. Conness, near Yosemite National Park 3108 Comment
  CAS-BOT-BC56546  Rhododendron columbianum D. E. Breedlove 1977-7-10 42965 Mono on the northeast side of Wheeler Peak above Sweetwater, Nevada 2743 Comment
  CAS-BOT-BC56547  Rhododendron columbianum Enid A. Larson 1972-9-18 s.n. Mono Sawmill Mdw., Glass Mt. 2804 Comment
  CAS-BOT-BC56549  Rhododendron columbianum J. Clausen 1932-7-29 560 Mono Slate Creek Valley. At Timberline Station 3017 Comment
  CAS-BOT-BC56550  Rhododendron columbianum J. Clausen 1932-7-29 560 Mono Slate Creek Valley. At Timberline Station 3017 Comment
  CAS-BOT-BC56551  Rhododendron columbianum J. Clausen 1934-9-9 969 Mono South-facing mountain side to the north of Slate Creek, Slate Creek Basin, east of Mount Conness 3108 Comment
  CAS-BOT-BC56552  Rhododendron columbianum J. Clausen 1939-7-9 1753 Mono Slate Creek Valley, east base of Mount Conness, Harvey Monroe Hall Natural Area. 3078 Comment
  CAS-BOT-BC56553  Rhododendron columbianum J. Clausen 1932-7-29 560 Mono Slate Creek Valley. At Timberline Station 3017 Comment
  CAS-BOT-BC56554  Rhododendron columbianum Beatrice Willard 1945-6-15 171 Mono Coldwater Creek, 1/2 mi. e. of Lake Mary, Mammoth Lakes area, Inyo National Forest 2773 Comment
  CAS-BOT-BC56555  Rhododendron columbianum Jeannette L. Huber 1970-9-1 1115 Mono Skelton Lake, Mammoth Lakes region, Sierra Nevada Mountains 3048 Comment
  CAS-BOT-BC56556  Rhododendron columbianum Mrs. E. C. Wright Summer 1923 s.n. Mono Upper Levining Creek near Tioga Pass 2590 Comment
  CAS-BOT-BC56557  Rhododendron columbianum Donald Myrick 1960-7-24 135 Mono around Mammoth Lakes 2834 Comment
  CAS-BOT-BC56558  Rhododendron columbianum Daniel Campbell; Gordon H. True 1975-9-1 7934 Nevada Willow Springs near Graniteville 1828 Comment
  CAS-BOT-BC56559  Rhododendron columbianum Gordon H. True; John Thomas Howell 1971-5-24 6589 Nevada South Fork of Yuba River ca. 1 mi. below Washington 792 Comment
  CAS-BOT-BC56560  Rhododendron columbianum Gordon H. True; J. T. Howell 1965-7-15 2320 Nevada Buckeye Diggings about 4 miles east of Banner Mt. between north and south forks of Greenhorn Creek 944 Comment
  CAS-BOT-BC56561  Rhododendron columbianum Gordon H. True; John Thomas Howell 1965-7-13 2209 Nevada Marsh Mill about 2 mi. E. of Graniteville on Bowman Road 1767 Comment
  CAS-BOT-BC56562  Rhododendron columbianum John Thomas Howell 1943-7-24 18772 A Nevada Frog Lake Comment
  CAS-BOT-BC56563  Rhododendron columbianum John Thomas Howell 1943-7-23 18740 Nevada Between Donner Pass and West Lake Comment
  CAS-BOT-BC56564  Rhododendron columbianum Robert F. Thorne; L. DeBuhr; C. W. Tilforth 1972-9-19 42295 Nevada Tahoe National Forest: Willow Spring 2.5 miles W of west end of Bowman Lake and 1 mi. S of rd. to Graniteville 1737 Comment
  CAS-BOT-BC56565  Rhododendron columbianum Wayne Roderick 1967-7-8 s.n. Nevada Willow Springs, near Graniteville 1828 Comment
  CAS-BOT-BC56566  Rhododendron columbianum C. F. Sonne 1886-7-25 207 Nevada Frog Lake near Mt. Stanford Comment
  CAS-BOT-BC56567  Rhododendron columbianum A. A. Heller 1903-7-29 7046 Nevada Above Donner Lake toward Donner Pass Comment
  CAS-BOT-BC56568  Rhododendron columbianum A. A. Heller 1903-7-29 7046 Nevada Above Donner Lake toward Donner Pass Comment
  CAS-BOT-BC56569  Rhododendron columbianum C. F. Sonne 1897-7-31 s.n. Nevada Frog Lake, Mt. Stanford 2438 Comment
  CAS-BOT-BC56570  Rhododendron columbianum Mrs. E. C. Sutliffe 1919-8-1 s.n. Plumas Gold Lake Comment
  CAS-BOT-BC56571  Rhododendron columbianum Mrs. E. C. Sutliffe 1917-8-1 s.n. Plumas Gold Lake Region Comment
  CAS-BOT-BC56572  Rhododendron columbianum Mary Strong Clemens 1920-6-22 s.n. Plumas Quincy Comment
  CAS-BOT-BC56573  Rhododendron columbianum Lewis S. Rose 1932-9-7 32640 Plumas Bear Lakes 1981 Comment
  CAS-BOT-BC56574  Rhododendron columbianum Lewis S. Rose 1969-6-24 69052 Plumas Butterfly Valley, 5 mi. west of Keddie 1310 Comment
  CAS-BOT-BC56575  Rhododendron columbianum Walter Knight; Irja Knight 1966-6-18 1289 Plumas Butterfly Valley 1143 Comment
  CAS-BOT-BC56576  Rhododendron columbianum Walter Knight; Irja Knight; John Thomas Howell 1966-7-28 1691 Plumas Sweetwater Meadow 1127 Comment
  CAS-BOT-BC56577  Rhododendron columbianum Anna Head 1920-7-9 s.n. Plumas Bear Lake, Lake Center Camp, Feather River region 1920 Comment
  CAS-BOT-BC56578  Rhododendron columbianum Anna Head 1921-7-17 s.n. Plumas Gray Eagle Creek, Feather River region Comment
  CAS-BOT-BC56579  Rhododendron columbianum Rimo Bacigalupi 1927-7-10 1693 Plumas meadow about 1/4 mile below ouetlet of Long Lake along Gray Eagle Creek 1828 Comment
  CAS-BOT-BC56580  Rhododendron columbianum E. K. Balls 1950-9-9 15770 Plumas west of Lakes Center Public Camp, southern Plumas County 2042 Comment
  CAS-BOT-BC56581  Rhododendron columbianum Marcus E. Jones 1897-7-7 s.n. Shasta Lassen's Peak 1828 Comment
  CAS-BOT-BC56582  Rhododendron columbianum Ella Dales Cantelow 1939-6-10 2571 Shasta Mt. Lassen National Park Comment
  CAS-BOT-BC56584  Rhododendron columbianum M. S. Jussel 1931-9-6 s.n. Shasta Sulphur Works, Mt. Lassen 2133 Comment
  CAS-BOT-BC56585  Rhododendron columbianum Mrs. E. C. Sutliffe 1920-9-1 s.n. Sierra Salmon Lake Comment
  CAS-BOT-BC56586  Rhododendron columbianum H. Albert Barker July 5 56 Sierra Summit Lake (largest) Comment
  CAS-BOT-BC56587  Rhododendron columbianum Mrs. E. C. Sutliffe 1918-7-1 56 Sierra Salmon Lake Comment
  CAS-BOT-BC56588  Rhododendron columbianum R. F. Thorne; C. W. Tilforth 1969-9-6 39207 Sierra of Goose Lake, SE of Gold Lake 1950 Comment
  CAS-BOT-BC56589  Rhododendron columbianum Lowell Ahart 1969-8-14 s.n. Sierra Near Baltimore Lake 2133 Comment
  CAS-BOT-BC56673  Rhododendron columbianum John Thomas Howell 1946-7-15 22388 Tuolumne Between Mosquito Flat and Ruby Lake, Rock Creek Lake Basin Comment
  CAS-BOT-BC56674  Rhododendron columbianum Mrs. Joseph Clemens 1919-8-7 s.n. Tuolumne Ten Lakes Basin, Yosemite National Park Comment
  CAS-BOT-BC56675  Rhododendron columbianum Ira L. Wiggins 1942-8-10 10109 Tuolumne about 1 mile northwest of Lunch Meadow, Stanislaus National Forest 2682 Comment
  CAS-BOT-BC56677  Rhododendron columbianum John Thomas Howell 1944-8-8 20126 Tuolumne Ridge south of Elizabeth Lake Comment
  CAS-BOT-BC56679  Rhododendron columbianum John Thomas Howell 1944-8-6 s.n. Tuolumne Dog Lake near Tuolumne Meadows Comment
  CAS-BOT-BC58076  Rhododendron columbianum W. R. Dudley 1895-7-30 957 Tulare Region of Upper Tule River: Vicinity of Mountain Lake (shores). 304 Comment
  CAS-BOT-BC58077  Rhododendron columbianum W. R. Dudley 1896-8-1 1525 a Tulare Sequoia National Park: Vicinity of Alta Peak. 2438 Comment
  CAS-BOT-BC58078  Rhododendron columbianum W. R. Dudley 1896-8-21 1710 Tulare Giant Stairs. Upper Kaweah River Region. Comment
  CAS-BOT-BC58079  Rhododendron columbianum Isabel McCracken 1927-8-4 s.n. Tulare S. of Little Five Lake. Comment
  CAS-BOT-BC58080  Rhododendron columbianum Geo. B. Grant 1902-7-1 674 Tulare Alta Peak, Sierra Nevada Mts. 304 Comment
  CAS-BOT-BC58081  Rhododendron columbianum Charlotte M. Hoak 1933-8-4 s.n. Tulare Heather Lake, Sequoia Nat. Park. Comment
  CAS-BOT-BC58082  Rhododendron columbianum Chas. Darland 1932-7-15 s.n. Tulare Heather Lake Trail. Sequoia National Park. 2590 Comment
  CAS-BOT-BC58101  Rhododendron columbianum Jim Shevock 1976-7-15 5221 Tulare Along USFS trail 31E14, Slate Mountain. Sequoia National Forest. 2499 Comment
  CAS-BOT-BC58102  Rhododendron columbianum Ernest C. Twisselmann 1969-7-30 15776 Tulare Salmon Creek on the e. slope of Sirretta Peak. 2651 Comment
  CAS-BOT-BC58103  Rhododendron columbianum Ernest C. Twisselmann 1969-7-30 15788 Tulare Salmon Creek on the e. slope of Sirretta Peak. 2621 Comment
  CAS-BOT-BC58104  Rhododendron columbianum Ernest C. Twisselmann 1970-6-25 16861 Tulare The Kern Plateau. Sirretta Meadow (at the head of Little Trout Creek). 2743 Comment
  CAS-BOT-BC58105  Rhododendron columbianum Henry M. Pollard 1944-7-24 s.n. Tulare Horseshoe Lake. Comment
  CAS-BOT-BC58106  Rhododendron columbianum John Thomas Howell 1942-7-29 17363 Tulare Little Five Lakes Basin. Comment
  CAS-BOT-BC58107  Rhododendron columbianum John Thomas Howell 1950-7-16 26956 Tulare N. of Bakeoven Meadows, South Fork of Kern River. 2499 Comment
  CAS-BOT-BC58108  Rhododendron columbianum John Thomas Howell 1940-8-5 16013 Tulare Reflection Lake. Comment
  CAS-BOT-BC58109  Rhododendron columbianum Mrs. Marion L. Campbell 1916-7-18 s.n. Tulare Moraine Lake. Comment
  CAS-BOT-BC58110  Rhododendron columbianum Mrs. Charles Derby 1928-7-7 s.n. Tulare Sequoia National Park. Comment
  CAS-BOT-BC58111  Rhododendron columbianum Culbertson 1904-7-17 4426 Tulare Hockelt's Meadow. Comment
  CAS-BOT-BC58112  Rhododendron columbianum John Thomas Howell 1949-7-20 25546 Tulare Rock Creek. 3444 Comment
  CAS-BOT-BC58113  Rhododendron columbianum unspecified 1892-7-28 s.n. Tulare Mineral King. Comment
  CAS-BOT-BC58114  Rhododendron columbianum W. J. Rushing 1913-7-8 17 -13 Tulare Kern Forest. Rock Creek. 3200 Comment
  CAS-BOT-BC58115  Rhododendron columbianum John Thomas Howell; Gordon H. True 1970-6-25 46782 Tulare E. branch of Salmon Creek, Big Meadow to Sirretta Meadows. Kern Plateau. 2590 Comment
  CAS-BOT-BC58116  Rhododendron columbianum John Thomas Howell; Gordon H. True 1970-6-25 46808 Tulare Sirretta Meadows. Kern Plateau. 2743 Comment
  CAS-BOT-BC58117  Rhododendron columbianum Ernest C. Twisselmann 1970-6-25 16784 Tulare Kern Plateau. Foxtail Basin (e. of East Sirretta Pass). 2834 Comment
  CAS-BOT-BC58118  Rhododendron columbianum Ernest C. Twisselmann 1970-6-25 16784 Tulare Kern Plateau. Foxtail Basin (e. of East Sirretta Pass). 2834 Comment
  CAS-BOT-BC58119  Rhododendron columbianum Ernest C. Twisselmann 1969-7-30 15776 Tulare Kern Plateau. Salmon Creek on the e. slope of Sirretta Peak. 2651 Comment
  CAS-BOT-BC58120  Rhododendron columbianum Ernest C. Twisselmann 1969-7-30 15788 Tulare Kern Plateau. Salmon Creek on the e. slope of Sirretta Peak. 2621 Comment
  CAS-BOT-BC58121  Rhododendron columbianum Ernest C. Twisselmann 1970-6-25 16861 Tulare Kern Plateau. Sirretta Meadow (at the head of Little Trout Creek). 2743 Comment
  CAS-BOT-BC58122  Rhododendron columbianum Frederick V. Coville; Frederick Funston 1891-8-7 1556 Tulare Near Mineral King, Sierra Nevada. Comment
  CAS-BOT-BC58123  Rhododendron columbianum Walker Wells 1927-7-24 s.n. Tulare Sawtooth Trail between lower Monarch Lake and Mineral King. 2743 Comment
  CAS-BOT-BC58124  Rhododendron columbianum W. R. Dudley 1895-7-21 856 Tulare Vicinity Needles Ridge. 2438 Comment
  CAS-BOT-BC58125  Rhododendron columbianum W. R. Dudley 1895-8-14 1253 Tulare Head of Middle Kaweah River. 2133 Comment
  CAS-BOT-BC58126  Rhododendron columbianum Peter H. Raven 1954-7-10 7261 Fresno Hilgard Branch, Bear Creek. 2926 Comment
  CAS-BOT-BC58127  Rhododendron columbianum Robert E. Jr. Cox 1947-6-28 s.n. Inyo Vicinity of Horseshoe Meadow. 3048 Comment
  CAS-BOT-BC58128  Rhododendron columbianum Jessie Saunders 1955-9-1 s.n. Inyo Trail between Mirror Lake & Ibex Meadow. 3352 Comment
  CAS-BOT-BC58129  Rhododendron columbianum Victor Duran 1932-7-10 3335 Inyo Pine Creek, Sierra Nevada (near Round Valley). 2956 Comment
  CAS-BOT-BC58130  Rhododendron columbianum Roxana S. Ferris 1934-7-23 8957 Inyo Loch Leven Fork of Bishop Creek above North Lake. 2880 Comment
  CAS-BOT-BC58131  Rhododendron columbianum Peter H. Raven; G. L. Stebbins, Jr. 1950-8-11 301 Inyo Pee-Wee Pot-Hole, ne. of Dingleberry Lake above Lake Sabrina. 3352 Comment
  CAS-BOT-BC58132  Rhododendron columbianum Frank W. Peirson 1933-8-4 s.n. Inyo Shores of Glacial Lakes at foot of Mt. Dade. Rock Creek Lake Basin. 3383 Comment
  CAS-BOT-BC58133  Rhododendron columbianum Annie M. Alexander; Louise Kellogg 1941-7-16 2580 Inyo Big Pine Creek. Comment
  CAS-BOT-BC58135  Rhododendron columbianum Betty Hammerly Papenhagen 1973-7-7 803 Inyo Meadows w. of Long Lake, Rock Creek Lake Basin. 3215 Comment
  CAS-BOT-BC58136  Rhododendron columbianum Lawrence T. McHargue 1963-7-21 s.n. Inyo Mountainside overlooking Onion Valley on Independence Creek, 15 mi. w. of Independence. 2895 Comment
  CAS-BOT-BC58137  Rhododendron columbianum M. Halperin 1932-8-4 415 Inyo Box Lake. 3200 Comment
  CAS-BOT-BC58138  Rhododendron columbianum Victor Duran 1932-7-10 3335 Inyo Pine Creek, Sierra Nevada (near Round Valley). 2956 Comment
  CAS-BOT-BC58139  Rhododendron columbianum Gary D. Wallace 1975-7-18 1454 Inyo Sierra Nevada, Little Lakes Basin, above the e. bank of the s. end of Long Lake. Rock Creek Area. 3230 Comment
  CAS-BOT-BC58140  Rhododendron columbianum Peter H. Raven; G. L. Stebbins, Jr. 1950-8-11 301 Inyo Pee-Wee Pot-Hole. NE. of Dingleberry Lake, above Lake Sabrina. 3352 Comment
  CAS-BOT-BC58141  Rhododendron columbianum Mark Kerr 1937-7-11 s.n. Inyo Little Onion Valley. 2895 Comment
  CAS-BOT-BC58143  Rhododendron columbianum John Thomas Howell 1941-8-2 16678 Madera Near Garnet Lake. 2956 Comment
  CAS-BOT-BC58144  Rhododendron columbianum John Thomas Howell 1958-8-12 34316 Madera Near Isberg Lake. 2987 Comment
  CAS-BOT-BC58145  Rhododendron columbianum L. R. Abrams 1912-7-15 4940 Madera Shut Eye Pass, Sierra Nat. Forest. 2133 Comment
  CAS-BOT-BC58148  Rhododendron columbianum Jim Shevock 1970-6-30 330 Tulare Coyote Lakes. Comment
  CAS-BOT-BC58149  Rhododendron columbianum Jim Shevock 1971-7-28 1234 Tulare At base of Jordan Peak. 2438 Comment
  CAS-BOT-BC58150  Rhododendron columbianum Jim Shevock 1976-7-15 5221 Tulare Along USFS trail 31E14, Slate Mountain. Sequoia National Forest. 2499 Comment
  CAS-BOT-BC58151  Rhododendron columbianum C. A. Reed 1920-6-28 s.n. Santa Clara Big Basin, redwood Park. Comment
  CAS-BOT-BC58152  Rhododendron columbianum V. F. Hesse 1943-5-6 303 Santa Cruz Near Boulder Creek. 213 Comment
  CAS-BOT-BC58153  Rhododendron columbianum V. F. Hesse 1943-5-6 303 Santa Cruz Near Boulder Creek. 213 Comment
  CAS-BOT-BC58154  Rhododendron columbianum V. F. Hesse 1943-5-6 303 Santa Cruz Near Boulder Creek. 213 Comment
  CAS-BOT-BC58155  Rhododendron columbianum Marion Ownbey; Ruth P. Ownbey 1938-7-16 1745 Tehama Near Dry Lake, 7 mi. n. of Mineral on Viola Road. Comment
  CAS-BOT-BC58156  Rhododendron columbianum Marion Ownbey; Ruth P. Ownbey 1938-7-16 1745 Tehama Near Dry Lake, 7 mi. n. of Mineral on Viola Road. Comment
  CAS-BOT-BC58157  Rhododendron columbianum John Thomas Howell 1947-8-4 23730 Inyo Fifth Lake. Big Pine Lakes. 3352 Comment
  CAS-BOT-BC58158  Rhododendron columbianum Mrs. Arthur C. Dyke 1931-6-30 s.n. Trinity Carville. Comment
  CAS-BOT-BC58159  Rhododendron columbianum C. L. Hitchcock; J. S. Martin 1939-7-11 5373 Trinity 11 mi. n. of Dedrick, e. shore of upper canyon Creek Lake. 1981 Comment
  CAS-BOT-BC58162  Rhododendron columbianum H. M. Hall; H. P. Chandler 1900-7-1 597 Fresno Meadows near Black Mountain. 2895 Comment
  CAS-BOT-BC58163  Rhododendron columbianum W. R. Dudley 1904-8-23 s.n. Fresno Kettle Mountain, upper Kings River Region. Comment
  CAS-BOT-BC58164  Rhododendron columbianum Adele Lewis Graut 1917-7-6 1070 Fresno Pittman Creek. 2438 Comment
  CAS-BOT-BC58165  Rhododendron columbianum Fred D. Klyver 1926-7-11 s.n. Fresno S. slope of Kaiser Crest, near Huntington Lake. Comment
  CAS-BOT-BC58166  Rhododendron columbianum Wm. M. McDonald 1952-7-16 486 Fresno Along John Muir Trail between Colby Meadow and Evolution Lake, Kings Canyon Natl. Park. 3349 Comment
  CAS-BOT-BC58168  Rhododendron columbianum H. A. Thomas; J. H. Thomas 1955-9-8 5399 Fresno Sierra Nevada. Vicinity of Mono Pass, Pioneer Basin, 4th Recess, and adjacent Mono Creek. 3931 Comment
  CAS-BOT-BC58169  Rhododendron columbianum H. A. Thomas; J. H. Thomas 1954-9-12 4610 Fresno Sierra Nevada. Vicinity of Mono Pass, Pioneer Basin, between 3rd and 4th Recess, and adjacent Mono Creek. 3657 Comment
  CAS-BOT-BC58170  Rhododendron columbianum Tim Ross 1990-7-3 3084 Fresno Southern Sierra Nevada Mountain Range: MONARCH WILDERNESS; Sequoia National Forest. About 1/2 mi. w. of Burns Meadow 2462 Comment
  CAS-BOT-BC58171  Rhododendron columbianum Henry M. Pollard 1943-7-19 s.n. Fresno kaiser Peak. Comment
  CAS-BOT-BC58172  Rhododendron columbianum A. S. Crafts 1932-8-2 563 Fresno Pioneer Basin. 3352 Comment
  CAS-BOT-BC58173  Rhododendron columbianum D. E. Breedlove 1970-9-6 17810 Fresno W. side of Kaiser Pass. 2743 Comment
  CAS-BOT-BC58174  Rhododendron columbianum John Thomas Howell 1948-7-22 24882 Fresno Bubbs Creek Canyon in vicinity of Vidette Meadows. 3048 Comment
  CAS-BOT-BC58175  Rhododendron columbianum Peter H. Raven 1952-7-18 4439 Fresno S. Fork of the San Joaquin. 2499 Comment
  CAS-BOT-BC58189  Rhododendron columbianum Frances Price 1919-1-1 s.n. Placer Tahoe. Comment
  CAS-BOT-BC58190  Rhododendron columbianum Dean W. Taylor 1974-6-26 4438 Alpine Carson Pass. headwaters of Devils Corral Creek. 2560 Comment
  CAS-BOT-BC58192  Rhododendron columbianum Doris K. Kildale 1927-6-26 3593 Humboldt Patick's Point. Comment
  CAS-BOT-BC58193  Rhododendron columbianum Doris K. Kildale 1926-2-7 1500 Humboldt Big Lagoon. Comment
  CAS-BOT-BC58194  Rhododendron columbianum Ynez Whilton Winblad 1941-6-27 s.n. Humboldt Between Eureka and Orick. Comment
  CAS-BOT-BC58196  Rhododendron columbianum Brighton C. Cain 1925-8-24 101 Lassen Mt. Lassen Vilcanic National Park, 1 mi. below Drakesbad. 1645 Comment
  CAS-BOT-BC58197  Rhododendron columbianum Elmer I. Applegate 1932-8-6 8210 Modoc Just above Lily Lake, Bidwell Pass, Warner Mts. Comment
  CAS-BOT-BC58198  Rhododendron columbianum F. Almeda 1993-7-24 7265 Placer About 15 mi. se. of Interstate Hwy #80 at Soda Springs on the trail to Upper Sheep Valley. 2133 Comment
  CAS-BOT-BC58199  Rhododendron columbianum Gordon H. True 1965-5-18 s.n. Placer Deer Creek trib. to truckee River just n. Squaw Valley. 1981 Comment
  CAS-BOT-BC58200  Rhododendron columbianum L. S. Smith 1925-8-14 1706 Placer Robertson Flat pasture. Tahoe forest. 1981 Comment
  CAS-BOT-BC58805  Rhododendron columbianum A. D. E. Elmer 1903-7-1 4944 Marin Point Reyes Post Office Comment
  CAS-BOT-BC58806  Rhododendron columbianum A. D. E. Elmer 1903-7-1 4944 Marin Point Reyes Post Office Comment
  CAS-BOT-BC58807  Rhododendron columbianum A. D. E. Elmer 1903-7-1 4944 Marin Point Reyes Comment
  CAS-BOT-BC58808  Rhododendron columbianum R. S. Ferris; Ira L. Wiggins 1935-7-19 8086 Marin Summit of divide between Inverness and Point Reyes Lighthouse 2.5 mi. from Inverness. Comment
  CAS-BOT-BC58809  Rhododendron columbianum Alan Galloway 1963-9-4 s.n. Marin Ledum Swamp Comment
  CAS-BOT-BC58810  Rhododendron columbianum Ronie Clark 1983-8-3 PR 83 -048 Marin Point Reyes National Seashore. Sir Frances Drake hwy., 6.7 mi. from Invverness to AT&T property. Comment
  CAS-BOT-BC58811  Rhododendron columbianum W. R. Dudley 1898-11-1 s.n. Marin Point Reyes Ridge Comment
  CAS-BOT-BC58812  Rhododendron columbianum Paul F. Covel 1937-6-27 593 A Marin Tomales Pt. rdno. Inverness Comment
  CAS-BOT-BC58813  Rhododendron columbianum F. V. Coville 1925-5-15 s.n. Marin Inverness Ridge on main road from Inverness to Lighthouse. Comment
  CAS-BOT-BC58814  Rhododendron columbianum C. B. Wolf 1931-8-22 1214 -seed Marin 3 miles west of Inverness on road to Pt. Reyes. (1/2 mile west of summit of grade.) 91 Comment
  CAS-BOT-BC58815  Rhododendron columbianum Joseph Andorfer Ewan 1933-10-22 8053 Marin Pt. Reyes Peninsula - cold Bog Comment
  CAS-BOT-BC58816  Rhododendron columbianum Beryl O. Schreiber 1936-6-21 2248 Marin Shell Beach on Tomales Bay 1 Comment
  CAS-BOT-BC58817  Rhododendron columbianum Alice Eastwood 1906-5-1 s.n. Marin Pt. Reyes 1 Comment
  CAS-BOT-BC58818  Rhododendron columbianum Alice Eastwood 1907-8-17 427 Mariposa Cathedral Lake Comment
  CAS-BOT-BC58819  Rhododendron columbianum A. A. Heller 1939-8-11 15470 Mariposa Yosemite National Park - 10 miles east of Aspen Valley Comment
  CAS-BOT-BC58820  Rhododendron columbianum Tompkins 1894-7-1 s.n. Mariposa Lake Vernon Comment
  CAS-BOT-BC58821  Rhododendron columbianum H. M. Hall; E. B. Babcock 1902-6-1 3572 Mariposa Yosemite National Park - vicinity of Lake Tenaya 2499 Comment
  CAS-BOT-BC58822  Rhododendron columbianum Mrs. H. P. Bracelin 1938-8-11 912 Mariposa Slopes of Mt. hoffman above May Lake 2926 Comment
  CAS-BOT-BC58823  Rhododendron columbianum Mrs. D. G. Bacon 1902-1-1 s.n. Mariposa Yosemite Valley - Yosemite National Park Comment
  CAS-BOT-BC58824  Rhododendron columbianum Nathan C. Sweet Jr. 1941-8-15 17 Mariposa Iron Lake, 18 from Fish Camp 1981 Comment
  CAS-BOT-BC58825  Rhododendron columbianum Nathan C. Sweet Jr. 1942-7-30 519 Mariposa Iron Lake, 18 east of Fish Camp 1981 Comment
  CAS-BOT-BC95677  Rhododendron columbianum K. Paulson; Robert Paulson 1989-7-14 189 Modoc Vicinity of Bell Mine, N end of the Warner Mts. 2217 Comment
  CAS-BOT-BC95678  Rhododendron columbianum Bruce Bartholomew 1994-7-2 6825 Modoc North Fork of Davis Creek, W side of the Warner Mountains. 1910 Comment
  CAS-BOT-BC95679  Rhododendron columbianum Bruce Bartholomew 1995-7-31 7124 Modoc 6.3 km from Forest Service road 46N30 on Forest Service road 45N34, W side of Warner Mountains. 1920 Comment
  CDA36123  Rhododendron columbianum M. Beyers, G. F. Hrusa 2011-7-2 1024 El Dorado Sierra Nevada: Shealor Lakes. 2194 Comment
  CHSC109476  Rhododendron columbianum L. P. Janeway; B. Castro 2012-7-27 11024 Modoc Warner Mountains. North-sloping meadow opening just above Mineral spring, 0.5 air km east of Yellow Mountain. 2361 Comment
  CHSC115599  Rhododendron columbianum Lowell Ahart; John Dittes 2015-8-6 20520 Tehama On the south side of the small stream, about 100 yards east of the spring, east of the camping area, west side of Childs Meadow, 0.67 air-miles west of intersection of State Highway 36 and Wilson Lake Road (County Road 769), 1.21 air-miles southeast east of Doe Mt., 10.41 air-miles south of Lassen Peak. 1498 Comment
  GH362987  Rhododendron columbianum A. Eastwood 6-21 Unknown Noyo Comment
  GH362988  Rhododendron columbianum A. A. Heller 1916-8-9 12509 Unknown Haypress meadow above Echo Lake 2590 Comment
  GH362991  Rhododendron columbianum H. L. Mason 1928-8-25 Unknown Mesa one mile east of mouth of Noyo River Comment
  GH362993  Rhododendron columbianum N. C. Sweet 1942-7-30 319 Unknown Iron Lake, 18 mi. east of Fish Camp 1981 Comment
  GH362994  Rhododendron columbianum L. C. Wheeler 1935-8-4 3777 Unknown Pine Creek, Warner Mts. S1, T47N, R15E 2209 Comment
  GH362995  Rhododendron columbianum Vict. Duran 1932-7-10 3335 Unknown Pine Creek, Sierra Nevada (near Round Valley) 2956 Comment
  GH362998  Rhododendron columbianum L. S. Rose 1939-5-24 39153 Unknown 7 mi. s. of Point Arena 30 Comment
  GH362999  Rhododendron columbianum L. S. Rose 1969-7-5 69075 Unknown Point Arena 15 Comment
  GH363000  Rhododendron columbianum George Hansen X 1893 794 Unknown Carson Spur 2590 Comment
  GH363001  Rhododendron columbianum H. N. Bolander 1867-1-1 6546 Unknown Noyo Comment
  GH363002  Rhododendron columbianum H. N. Bolander 186 Sept 429 Unknown Mendocino Plains Comment
  GH363003  Rhododendron columbianum I. L. Wiggins & R. S. Ferris 1935-7-19 8086 Unknown Summit of divide between Inverness and Point Reyes Lighthouse 2.5 mi. from Inverness Comment
  GH363007  Rhododendron columbianum L. S. Rose 1969-6-24 69051 Unknown Butterfly Valley, 5 mi. west of Keddie 1310 Comment
  GH363008  Rhododendron columbianum W. W. Eggleston 1911-08-01 - 1911-09-01 7692 Unknown Spring Brook, Mt. Hough. Comment
  GH363009  Rhododendron columbianum A. M. Alexander & L. Kellogg 1941-7-16 2580 Unknown Big Pine Creek, trail between 2nd and 3rd lakes Comment
  GH363012  Rhododendron columbianum W. W. Eggleston 1911-7-26 7361 Unknown Gerber ranch, Mineral Comment
  GH363014  Rhododendron columbianum F. J. Smiley 1914-7-26 599 Unknown Nellie Lake Comment
  GH363015  Rhododendron columbianum F. J. Smiley 1913-8-10 474 Unknown Castle Peak 2529 Comment
  GH363016  Rhododendron columbianum L. D. Benson 1929-6-18 1717 Unknown Seaward N Coast 243 Comment
  GH363020  Rhododendron columbianum A. Eastwood 1894-6-23 Unknown Mendocino City Comment
  GH363021  Rhododendron columbianum C. G. Pringle 1882-8-7 Unknown Mendocino Comment
  GH363022  Rhododendron columbianum L. S. Rose 1939-5-24 39153 Unknown 7 mi. s. of Point Arena 30 Comment
  GH363023  Rhododendron columbianum A. A. Heller 1919-7-30 13339 Unknown Meek's bay, Lake Tahoe 1859 Comment
  GH363024  Rhododendron columbianum A. A. Heller 1903-7-29 7046 Unknown Above Donner Lake toward Donner Pass Comment
  GH363025  Rhododendron columbianum F. J. Smiley 1913-7-14 31 Unknown Shores of Angora Lake, Tahoe 2346 Comment
  GH363026  Rhododendron columbianum W. W. Eggleston 1927-08-05 - 1927-08-06 21563 Unknown Robert Flat Region, Tahoe Forest Comment
  GH363027  Rhododendron columbianum J. D. Culbertson 1904-7-17 4426 Unknown Hockett's Meadow Comment
  GH363028  Rhododendron columbianum L. Abrams 1911-7-29 4855 Unknown Gilmore Lake 2529 Comment
  GH363032  Rhododendron columbianum H. L. Mason 1924-6-19 1075 Unknown Along margins of Bear Lakes Comment
  GH363037  Rhododendron columbianum H. N. Bolander 1866-1-1 4738 Unknown Mendocino City, Plains Comment
  GH363039  Rhododendron columbianum B. B. Brues 1927-8-3 Unknown Lassen Park, on rocky ridge between Lake Helen and volcano cone 2651 Comment
  GH363040  Rhododendron columbianum G. W. Turesson 1938-7-28 623 Unknown Sierra Nevada, Harvey Monroe Hall Natural Area, Slate Creek Basin, Slate Creek Valley east of Mount Conness 3048 Comment
  GH363044  Rhododendron columbianum A. Davidson Jul 11 2650 Unknown South Lake, Bishop Creek 3048 Comment
  GH363045  Rhododendron columbianum L. M. Brown 1934-4-11 164 Unknown Wood Path-North-Fork Smith-River Comment
  GH363046  Rhododendron columbianum N. C. Sweet 1941-8-15 17 Unknown Iron Lake, 18 from Fish Camp 1981 Comment
  GH363050  Rhododendron columbianum A. Eastwood 1912-08-08 - 1912-08-16 1651 Unknown Fort Bragg Comment
  GMDRC7434  Rhododendron columbianum J. M. Andre 2009-8-4 32496 Inyo Eastern Sierra Nevada: south fork of Big Pine Canyon , in outwash basin below Norman Clyde Glacier, ESE of Elinore Lake 3208 Comment
  GMDRC7477  Rhododendron columbianum J. M. Andre, T. La Doux 2009-8-4 32562 Inyo Eastern Sierra Nevada: south fork of Big Pine Canyon, north shore of Elinore Lake, north of Mt Jepson to Mt Sill cirque basin 3351 Comment
  HSC101869  Rhododendron columbianum R. D. Whittlesey 2013-8-3 13 Siskiyou 3.2 mi. west on Castle Creek Rd. from Castella, and 3.0 mi. up Sulfur Creek Climber's Trail. 1585 Comment
  HSC102457  Rhododendron columbianum M. R. Mesler, Sydney Carothers, Ian Zacher 2012-8-8 1412 Del Norte Near Ship Mountain Lake 1380 Comment
  HSC102877  Rhododendron columbianum J. P. Smith, J. O. Sawyer, R. J. Cole 2010-7-18 13005 Del Norte Six Rivers National Forest. Along Forest Route 18N07. 1030 Comment
  HSC103828  Rhododendron columbianum G. D. Barbe, T. C. Fuller 1982-8-25 3937 Mono Cloverleaf Lake at Convict Creek lakes basin, S of Convict Lake, Inyo National Forest 3146 Comment
  HSC12372  Rhododendron columbianum Steve Dorei 1970-10-14 100 Humboldt Big Lagoon Comment
  HSC12781  Rhododendron columbianum Wendell Wood 1970-7-15 122 Mono Off Hwy. 158, 200 yds. up Fern Lake trail, 2 1/2 mi. S of June Lake city limits 2134 Comment
  HSC22279  Rhododendron columbianum J. O. Sawyer 1969-7-11 1334 Siskiyou S Sugar Creek 1829 Comment
  HSC22283  Rhododendron columbianum J. O. Sawyer 1968-7-22 534 Siskiyou Between Handcock and Diamond Lakes 1951 Comment
  HSC22285  Rhododendron columbianum J. O. Sawyer 1969-6-13 1089 Siskiyou W of Little Duck Lake 2043 Comment
  HSC22286  Rhododendron columbianum J. O. Sawyer 1969-6-12 873 Siskiyou SE facing upper slope above Sugar Creek 1890 Comment
  HSC23118  Rhododendron columbianum Norman Dennis 1965-6-3 143 Humboldt Big Lagoon County Park, SW corner of Big Lagoon Comment
  HSC27016  Rhododendron columbianum Brad Klipfel 1973-8-9 268 Humboldt Big Lagoon County Park Comment
  HSC30573  Rhododendron columbianum Frederick W. Oettinger 1968-8-2 349 Siskiyou Marble Mountain Wilderness, S of Diamond Lake 2073 Comment
  HSC31493  Rhododendron columbianum Steve Selva, Roger Jensen 1974-8-25 49 Siskiyou W end of Little Duck Lake Comment
  HSC31536  Rhododendron columbianum Gary S. Lester 1974-4-11 84 Del Norte 1.0 mi. N of Gasquet, W facing slope above the N Fork of the Smith River 244 Comment
  HSC32017  Rhododendron columbianum A. M. Montalvo, J. D. Ackerman 1974-6-16 330 Del Norte Off Rd. to Stoney Creek Trail, 1 mi. N of Gasquet. Comment
  HSC32036  Rhododendron columbianum A. M. Montalvo, J. D. Ackerman 1974-6-1 303 Del Norte ca. .75 mi. E of the N fork of the Smith River, along Wimer Rd. 427 Comment
  HSC36211  Rhododendron columbianum John Rehling 1975-8-11 107 Siskiyou S end of Little Duck Lake Comment
  HSC36223  Rhododendron columbianum John Rehling 1974-8-24 44 Siskiyou S end of Little Duck Lake Comment
  HSC36263  Rhododendron columbianum John Rehling 1974-8-20 25 Humboldt Big Lagoon Bog Comment
  HSC36294  Rhododendron columbianum Robert Schulmeister 1973-11-25 Del Norte W of Gasquet. Comment
  HSC44734  Rhododendron columbianum Maralyn O'Meara 1971-10-25 53 Humboldt S side of Big Lagoon Comment
  HSC4876  Rhododendron columbianum J. O. Sawyer 1968-7-23 585 Siskiyou Along trail from Brown's Valley to Caribou Basin including areas around Snowslide Lake and Caribou Lake. 1829 Comment
  HSC4877  Rhododendron columbianum J. O. Sawyer 1968-7-9 453 Siskiyou W of Little Duck Lake at lake edge 1936 Comment
  HSC4878  Rhododendron columbianum J. O. Sawyer 1968-6-25 289 Siskiyou NE of N Horse Range Lake 2012 Comment
  HSC49813  Rhododendron columbianum R. York 1979-5-19 305 Del Norte Along trail to Stoney Creek Bog, 1.5 mi. N of Gasquet 183 Comment
  HSC51706  Rhododendron columbianum Overton, Butler 1979-6-14 4663 Del Norte Near Coon Creek, close to the town of Gasquet 533 Comment
  HSC51972  Rhododendron columbianum Overton, Butler 1979-6-18 5102 Del Norte Near Ship Mtn., close to the town of Gasquet. 1265 Comment
  HSC52163  Rhododendron columbianum G. L. Clifton, Griswold 1979-6-18 5474 Del Norte Near Gasquet Mtn., close to the town of Gasquet 610 Comment
  HSC53329  Rhododendron columbianum Overton, Butler 1979-6-26 6702 Del Norte Near Boundry Trail 869 Comment
  HSC59188  Rhododendron columbianum Linda M. Barker 1975-5-24 548 Del Norte Old Gasquet Toll Rd., Eighteenmile Creek, 4.4 mi. N of southern entrance. 421 Comment
  HSC60066  Rhododendron columbianum M. A. Baker 1978-5-12 519 Del Norte Confluence of Stoney Creek and N Fork of Smith River. Comment
  HSC60425  Rhododendron columbianum Linda M. Barker 1975-6-17 826 Del Norte Old Gasquet Toll Rd., 8.3 mi. N of Patrick Creek junction 878 Comment
  HSC61028  Rhododendron columbianum Ruby Van Deventer 1959-3-6 Del Norte Camp Madrona. 5 mi. E of Gasquet on Hwy. 199 130 Comment
  HSC61702  Rhododendron columbianum Ruby Van Deventer Del Norte Douglas Park, Pacamo Camp Comment
  HSC62833  Rhododendron columbianum M. Dean Griswold Jr. 1979-5-19 39 Del Norte 2 mi. up Middle Fork of Smith River Rd. from Gasquet on Stony Creek Trail Comment
  HSC62876  Rhododendron columbianum J. M. DiTomaso 1979-5-19 1024 Del Norte Stony Creek Trail, 1 mi. N of Hwy. 199 off Middle Fork Rd., Gasquet 152 Comment
  HSC66685  Rhododendron columbianum C. Macdonald, P. Powers, C. Raley, J. Spitler, D. Stamp 1980-5-24 117 Del Norte On Low Divide Rd., at turnoff to Sourdough Campground 793 Comment
  HSC67162  Rhododendron columbianum J. P. Smith 1971-10-2 4932 Del Norte Along Stony Creek near Gasquet. Comment
  HSC67174  Rhododendron columbianum J. P. Smith, Steve Selva 1970-7-17 4459 Siskiyou Below Kangaroo Lake. 1890 Comment
  HSC71949  Rhododendron columbianum J. P. Smith 1976-6-28 8889 Del Norte Holiday Rd. along the W Fork of Patrick Creek. 534 Comment
  HSC72719  Rhododendron columbianum D. Parker 1965-7-24 895 Siskiyou Salmon Mtn., edge of Horseshoe lake 1860 Comment
  HSC74662  Rhododendron columbianum M. A. Baker 1980-7-29 3198 Del Norte Near Table Mtn. 1067 Comment
  HSC749  Rhododendron columbianum William J. Ferlatte 1967-7-26 759 Siskiyou Caribou Basin 1982 Comment
  HSC750  Rhododendron columbianum William J. Ferlatte 1967-8-5 776 Trinity Canyon Creek Lakes 1646 Comment
  HSC751  Rhododendron columbianum William J. Ferlatte 1967-8-18 1016 Trinity Landers Lake basin 2134 Comment
  HSC77987  Rhododendron columbianum John S. Palmer 1974-7-3 220 Trinity Bear Lakes Area, along Bear Creek 1738 Comment
  HSC7828  Rhododendron columbianum H. E. Parks, J. P. Tracy 1935-6-1 11241 Del Norte Near Gasquet, N side of Middle Fork of Smith River on Old Gasquet Toll Rd. 427 Comment
  HSC7829  Rhododendron columbianum W. R. Brigham 1962-5-19 7 Humboldt S of Big Lagoon. Comment
  HSC7830  Rhododendron columbianum C. B. Wolf 1927-9-1 1326 Mendocino 3 mi. from Fort Bragg on the Willits rd. Comment
  HSC7831  Rhododendron columbianum J. Pursell 1964-10-6 1061 Humboldt Big Lagoon Bog Comment
  HSC7832  Rhododendron columbianum D. E. Anderson 1961-9-13 1804 Humboldt Big Lagoon County Park Comment
  HSC7833  Rhododendron columbianum H. E. Parks, J. P. Tracy 1936-6-13 11357 Del Norte Shelley Creek, near Monumental 701 Comment
  HSC7834  Rhododendron columbianum C. S. Chavez 1965-8-26 171 Madera Agnew Meadows, at edge of rocky spring 2470 Comment
  HSC7835  Rhododendron columbianum J. F. Knezevich 1967-5-23 452 Humboldt N of Trinidad at Big Lagoon 15 Comment
  HSC7836  Rhododendron columbianum L. S. Rose 1969-6-24 69052 Plumas Butterfly Valley, 5 mi. W of Keddie 1311 Comment
  HSC7837  Rhododendron columbianum Allan R. Marshall 1962-5-19 19 Del Norte 2 mi. from Gasquet 122 Comment
  HSC83261  Rhododendron columbianum Gladys L. Smith, Clare R. Wheeler 1979-2-7 5098 Mendocino 1.5 mi. N of Fort Bragg on W side of Hwy. 1 46 Comment
  HSC83263  Rhododendron columbianum Gladys L. Smith, Clare R. Wheeler 1979-5-23 5290 Mendocino Albion-Little River Rd., W side of county airport 183 Comment
  HSC91309  Rhododendron columbianum Jennifer Whipple 1977-8-4 2160 Siskiyou Wagon Creek drainage near Wagon Creek 2226 Comment
  HSC91899  Rhododendron columbianum Susan H. Bicknell 1987-9-1 Humboldt Patrick's Point State Park, Penn Creek campground Comment
  HSC94421  Rhododendron columbianum Helen Constantine-Shull 1996-9-1 1176 Mono NE facing slope near stream, S side of middle canyon of Deadman Creek 2815 Comment
  HSC96319  Rhododendron columbianum Gordon Leppig, Tony LaBanca, Leonel Arguello 1997-6-27 476 Siskiyou Klamath National Forest, Russian Wilderness, Little Duck Lake Fen 2200 Comment
  HSC96537  Rhododendron columbianum Gordon Leppig, Juli Neander 1998-7-4 883 Mendocino Mckerricker State Park, Inglenook Fen, Ten Mile Dunes 9 Comment
  HSC96872  Rhododendron columbianum Gordon Leppig 1998-7-10 913 Siskiyou Russian Wilderness, cirque W of Little Duck Lake 671 Comment
  JEPS120184  Rhododendron columbianum Julie Kierstead Nelson with Jim Shevock 2012-6-21 2012 -052 Shasta Friday Louden mine adit, W slope of Shasta Lake along Forest Rd. Comment
  JEPS121504  Rhododendron columbianum Adam C. Schneider 2013-9-28 314 El Dorado Near Silver Lake. Along trail to Granite Lake, along shore of Amy Lake. Comment
  JEPS123133  Rhododendron columbianum D. Burge and J. Nelson with Jepson Herbarium workshop participants 2015-6-27 JHWS- 108 Trinity Bonanza King Comment
  JEPS123982  Rhododendron columbianum Lowell Ahart, John Dittes 2015-8-6 20520 Tehama West side of Childs Meadow, 0.67 air miles west of intersection of State Highway 36 and Wilson Lake Road (County Road 769), 1.21 air miles southeast of Doe Mountain, 10.41 air miles south of Lassen Peak. Comment
  LA16780  Rhododendron columbianum Margaret Lewis; August 1955 20 Mono Sierra Nevada, H. M. Hall Natural Area, along Cabin Creek near the cabin Comment
  LA204847  Rhododendron columbianum S. Beller; July 1926 sn Mariposa Yosemite National Park Comment
  LA35328  Rhododendron columbianum Mary V. Hood; 1945-7-17 45- 91 k* Tulare Sierra Nevada, Sequoia National Park, Mehrton's Meadow 2804 Comment
  LA35329  Rhododendron columbianum C. L. Hitchcock; 1940-7-5 40- 96 k* Madera Shadow Lake 2666 Comment
  LA40924  Rhododendron columbianum C. L. Hitchcock; William Martin 1939-7-11 5373 Trinity 11 mi. N of Dedrick, E shore of upper Canyon Creek Lake 1981 Comment
  LA40925  Rhododendron columbianum C. Darland; 1932-7-15 6183 Tulare Sierra Nevada, Sequoia National Park, Heather Lake Trail 2590 Comment
  LA40926  Rhododendron columbianum Martha Hilend; 1931-8-6 799 Siskiyou near Moraine Lake, Ledum Comment
  LA40927  Rhododendron columbianum Martha Hilend; 1929-7-10 sn Tulare Sierra Nevada, Sequoia National Park, Heather Lake 2834 Comment
  LA40928  Rhododendron columbianum Victor Duran; 1932-7-10 3335 Inyo Sierra Nevada, Pine Creek (near Round Valley) 2956 Comment
  LA40929  Rhododendron columbianum Harlan Lewis; 1937-8-25 sn Mono Sierra Nevada, Saddlebag Lake 3200 Comment
  LA40930  Rhododendron columbianum E. Hollis; June 17 1928 - June -30 1928 Plumas Mt. Lassen National Forest, Drakesbad Comment
  LA40931  Rhododendron columbianum Mary V. Hood; 1916-8-9 12509 El Dorado Haypress Meadow above Echo lake 2590 Comment
  LA91579  Rhododendron columbianum Lionel G. Klikoff; 911 Tuolumne Yosemite National Park, Gaylor Lake Basin 3200 Comment
  OBI14459  Rhododendron columbianum Unknown 1960-7-14 s.n. Inyo Midnight Lk, Sierra Nevada, W of Bishop 3353 Comment
  OBI14460  Rhododendron columbianum Neil Havlik 1968-5-18 197 Marin At jctn of Point Reyes Rd and McClure's Bech rd, 2 mi N of Inverness Comment
  OBI14461  Rhododendron columbianum H. E. McMinn 1931-6-29 2563 Mendocino Plains E of Mendocino City Comment
  OBI14462  Rhododendron columbianum Robert F. Hoover 1969-5-26 11348 Marin Pierce Point Rd just N of summit, Point Reyes Peninsula Comment
  OBI14463  Rhododendron columbianum Robert F. Hoover 1969-5-26 11348 Marin Pierce Point Rd just N of summit, Point Reyes Peninsula Comment
  OBI17728  Rhododendron columbianum David Fross 1977-8-6 44 Mono N side of Dana Plateau, near the mouth of Ellery Lake 3109 Comment
  OBI37805  Rhododendron columbianum David J. Keil 1983-6-30 17231 Mendocino Fort Bragg, E of hwy 1 along Gibney ln. Comment
  OBI37811  Rhododendron columbianum David J. Keil 1983-6-30 17241 Mendocino Ca. 0.3 mi E of hwy 1 along Fern Creek rd, just S of Fort Bragg Comment
  OBI47301  Rhododendron columbianum David J. Keil, V. L. Holland 1987-7-5 20240 Madera Sierra Natl Forest, Minarets Wilderness Area; Trail to Jackass Lakes 2804 Comment
  OBI70636  Rhododendron columbianum Gary D. Wallace 1987-8-1 2790 Inyo Eastern Sierra Nevada: Trail down from Ruby lake 3231 Comment
  OBI70673  Rhododendron columbianum David J. Keil 1988-1 20767 Tulare Sequoia National Park. Vicinity of Eagle Lake, ca. 3.5 miles south of Mineral King. 0 Comment
  PGM2834  Rhododendron columbianum Jon Libby 1984-4-24 Monterey Santa Lucia Mountains, The Indians Roosevelt Cr, 1/2 mi upstreem where cr cuts sandstone Comment
  PGM3812  Rhododendron columbianum Vern Yadon 1992-7-9 Monterey Santa Lucia Mountains, Roosevelt Canyon Los Padres Nat For, The Indians near Comment
  RSA794511  Rhododendron columbianum LeRoy Gross, Joshua Paolini, Aaron C. Sedgwick 2012-7-25 5708 Tulare Floristic inventory of the Jennie Lakes Wilderness: Poison Meadow, west from Weaver Lake, and Shell Mountain. 2561 Comment
  RSA794518  Rhododendron columbianum LeRoy Gross, Aaron C. Sedgwick 2012-7-12 5656 Tulare Floristic inventory of the Jennie Lakes Wilderness: Weaver Lake. 2653 Comment
  SDSU2876  Rhododendron columbianum D. F. Howe 1963-7-7 3615 Del Norte Eighteen Mile Creek on #199, Six Rivers National Forest. 152 Comment
  SDSU2877  Rhododendron columbianum D. F. Howe 1965-7-31 4095 Santa Cruz Bonnie Doon area, 0.9 miles from Pine Flat Rd. on Martin Rd. 457 Comment
  SDSU2878  Rhododendron columbianum Alice Pratt 1930-7-3 1219 Tulare Road to Heather Lake. Giant Forest. Comment
  SEINET2028339 Image available Rhododendron columbianum Victor Duran 1932-7-10 3335 Inyo Pine Creek, Sierra Nevada (near Round Valley) 2960 Comment
  SEINET2029156 Image available Rhododendron columbianum L. C. Wheeler 1935-8-4 3777 Modoc Warner Mountains, Pine Creek 2210 Comment
  SEINET2029409 Image available Rhododendron columbianum C. L. Hitchcock, J. S. Martin 1939-7-11 5373 Trinity about 11 miles north of Dedrick, east shore of Upper Canyon Creek Lake 1981 Comment
  SFV12140  Rhododendron columbianum D. H. Hoover 1969-8-24 s. n. Madera Sierra Nevada Top of Minaret Falls. Near headwaters of San Joaquin River, west of Mammoth Lakes. 2439 Comment
  SFV18969  Rhododendron columbianum S. Kimball, P. Wilson 2001-7-10 278 Inyo Sierra Nevada Plot B46 of Bishop Creek drainage gradient analysis. 3170 Comment
  SFV2668  Rhododendron columbianum J. M. Tucker 1963-7-5 3704 Siskiyou Salmon Mountains. On Blake's Fork of South Russian Creek (a tributary of Salmon River), about 7 miles (airline) east of Sawyer's Bar. 1616 Comment
  SFV2669  Rhododendron columbianum R. L. Armacost 1933-9-1 78 Fresno Sierra Nevada Between French Creek and Merriam Peak. 3369 Comment
  SFV6744  Rhododendron columbianum T. Gordon, P. McDonald 1974-7-27 476 Inyo Sierra Nevada In the vicinity of Mount Whitney. Near Mirror Lake. 3232 Comment
  SFV6810  Rhododendron columbianum T. Gordon, C. Johnson, K. Stevenson 1974-8-10 554 Madera Sierra Nevada Between Shadow Lake and Lake Ediza. 2774 Comment
  SJSU10862  Rhododendron columbianum H. L. Buckalew 1958-7-2 Inyo drainage from Mirror L on Mt Whitney Trail 3169 Comment
  SJSU1945  Rhododendron columbianum C. W. Sharsmith 1957-6-19 6416 Mendocino c. 2 mi NE of Mendocino City Comment
  SJSU4063  Rhododendron columbianum C. W. Sharsmith 1965-5-23 7386 Marin Ledum Swamp c. 3 mi NW of Inverness, Point Reyes Peninsula Comment
  SJSU6529  Rhododendron columbianum R. W. Trivelpiece 1973-6-21 144 .5 Siskiyou Big Duck L, Scott R drainage c. 7.5 mi W of Callahan 2042 Comment
  UC1872269  Rhododendron columbianum Michael Honer 2006-8-31 2369 Fresno Sierra Nevada; Central Sierra Nevada region: North Fork Kings River canyon; appx. 3 mi. ESE of Courtright Reservoir Dam. Small minor stream draining W towards main river. Uphill and appx. 1/2 mi. S of main river canyon (Courtright Res. quad). Comment
  UCD117832  Rhododendron columbianum Mary Theresa Burke 1978-8-15 246 Fresno Rae Lakes Basin, Kings Canyon National Park. 3108 Comment
  UCD117833  Rhododendron columbianum A. S. Crafts 1932-8-2 563 Fresno Pioneer Basin. 10 Comment
  UCD117834  Rhododendron columbianum Beecher Crampton 1960-6-8 5576 Marin Marin County, Point Reyes Peninsula, 2 miles northwest of Inverness. Comment
  UCD117835  Rhododendron columbianum H. B. Currier 1952-8-14 s.n. Plumas Along trail from Lakes Center Camp to Mount Elwell, next lake above Silver Lake, Plumas National Forest. 1981 Comment
  UCD117836  Rhododendron columbianum Joseph M. DiTomaso 1975-7-9 114 Trinity 0.5 mile below Lower Bear Basin Meadows. Comment
  UCD117837  Rhododendron columbianum Joseph M. DiTomaso 1976-7-12 614 Trinity Lower Bear Basin Meadows. 1737 Comment
  UCD117838  Rhododendron columbianum Murray Fowler 1961-8-8 s.n. Placer Robertson Flat, ca. 19 miles west of Tahoe City. 1828 Comment
  UCD117839  Rhododendron columbianum Morris Halperin 1932-8-4 415 Inyo N. of Bax Lake. Comment
  UCD117840  Rhododendron columbianum Morris Halperin 1932-8-14 916 El Dorado Strawberry. Comment
  UCD117841  Rhododendron columbianum R. O. Hanes 1995-7-17 271 Sierra Tahoe Forest. Quartz Mtn. 1773 Comment
  UCD117842  Rhododendron columbianum D. H. Hartmann 1942-2-23 s.n. Mendocino 3 mi. east of Fort Bragg. Comment
  UCD117843  Rhododendron columbianum Mary M. Hektner 1976-5-10 252 Sonoma Along State Highway 1, Unit 35-A Owners' Map, Sea Ranch. Comment
  UCD117844  Rhododendron columbianum John Thomas Howell; Gordon H. True 1970-6-25 46782 Tulare East branch of Salmon Creek, Big Meadow to Sirretta Meadows, Kern Plateau. 2590 Comment
  UCD117846  Rhododendron columbianum P. B. Kennedy 1919-8-1 s.n. El Dorado Chiquata Lake, Sierra Nat. Forest. 2438 Comment
  UCD117847  Rhododendron columbianum Malcolm A. Nobs; S. Galen Smith 1949-6-29 901 Marin On north side of Pt. Peyes road, just north of Pierce Pt. road, about 3 miles north of Inverness. Comment
  UCD117848  Rhododendron columbianum R. V. Parke; J. M. Tucker 1953-5-30 2647 Mendocino 1.9 miles inland from Mendocino. Comment
  UCD117849  Rhododendron columbianum Barbara L. Rice; R. H. Pemble and M. D. Fleschner 1966-6-28 162 Tulare Upper Franklin Lake, Mineral King Game Refuge, Sequoia National Forest. 3505 Comment
  UCD117851  Rhododendron columbianum Barbara L. Rice 1966-7-12 297 Tulare Just below Crystal Lake Dam, Mineral King Game Refuge, Sequoia National Forest. 3352 Comment
  UCD117854  Rhododendron columbianum D. Sanchez-Mata 1998-7-11 s.n. Mendocino Fort Bragg-Inglenook. Mackerricher State Park. 15 Comment
  UCD117858  Rhododendron columbianum Teresa A. Sholars 1974-12-4 6 Mendocino 1/8 mile north of Comptche-Ukiah Road, 2 miles east of State Highway 1. Comment
  UCD117860  Rhododendron columbianum Teresa A. Sholars 1975-1-18 18 Mendocino ca. 1/8 mile north of Comptche-Ukiah Road, 2 miles east of State Highway 1. Comment
  UCD117862  Rhododendron columbianum T. I. Storer 1925-7-12 568 Amador Silver Lake. Comment
  UCD117865  Rhododendron columbianum Dean W. Taylor 1972-7-22 2695 Alpine Carson Pass. Near the outlet of Winnemucca Lake. 2743 Comment
  UCD117868  Rhododendron columbianum Dean W. Taylor 1974-7-15 4138 Alpine Carson Pass. Burnside Lake. 2478 Comment
  UCD117870  Rhododendron columbianum J. M. Tucker 1951-8-2 2206 Plumas About 1 mile west of Keddie. Comment
  UCD117871  Rhododendron columbianum J. M. Tucker 1958-5-24 3387 Sonoma Northwest end of Pitkin Marsh, ca. 1 1/4 miles east-southeast of Forestville. Comment
  UCD117873  Rhododendron columbianum J. M. Tucker; C. H. Lamoureux 1958-6-8 3409 Sonoma In the vicinity of State Highway 1, 6.1 miles (by road) north of Fort Ross. Comment
  UCD117874  Rhododendron columbianum J. M. Tucker 1963-7-5 3704 Siskiyou Blake's Fork of South Russian Creek (a tributary of the Salmon River), ca. 7 miles (airline) east of Sawyer's Bar Salmon Mountains. 1615 Comment
  UCD117876  Rhododendron columbianum J. M. Tucker 1977-7-21 4400 Nevada Frog Lake, 3 1/2 to 4 miles due north (airline) of Donner Summit, Sierra Nevadas. 2316 Comment
  UCD117879  Rhododendron columbianum Ernest C. Twisselmann 1969-7-30 15788 Tulare The Kern Plateau. Salmon Creek on the east slope of Sirretta Peak. 2621 Comment
  UCD117881  Rhododendron columbianum T. E. Weier 1942-5-21 s.n. Mendocino 7 miles N. Gualala, Highway #1. Comment
  UCD117883  Rhododendron columbianum R. S. Woglum 1930-8-10 s.n. Tuolumne Tuolumne Meadows. Comment
  UCD117884  Rhododendron columbianum R. S. Woglum 1940-8-22 2879 Mariposa Lake May, Yosemite National Park. Comment
  UCD13166  Rhododendron columbianum P. Polito 1974-5-4 73 Mendocino Mendocino CO. Comptche Road, 2.5 miles east of Mendocino. Elevation 400'. 121 Comment
  UCD13285  Rhododendron columbianum K. F. Mawdsley 1996-7-10 16 Siskiyou California, Siskiyou County. Castle Lake. 1698 Comment
  UCD142883  Rhododendron columbianum Ellen Dean; K. Mawdsley, S. Yegorova, M and T Starbuck 2013-8-16 7978 El Dorado W shore of Lake Tahoe, Sugar Pine Point State Park. Fen just south of General Creek Campground. Northeast side of fen. 1932 Comment
  UCD143536  Rhododendron columbianum Oren Pollak 1987-4-28 s.n. Mendocino Van Damme State Park. Comment
  UCD150755  Rhododendron columbianum James A. Neilson Jr. 1971-7-6 2206 El Dorado Tahoe Basin, Osgood Swamp. 1999 Comment
  UCD150756  Rhododendron columbianum James A. Neilson Jr.; Dianne Q. McQuaid Date Unknown 2502 El Dorado Tahoe Basin, Lake Lucille. 2493 Comment
  UCD165552  Rhododendron columbianum Ellen Dean; with Svetlana Yegorova and Daniel McNair 2016-5-10 8850 El Dorado West side of Tahoe Basin. D.L. Bliss State Park. Area of park on west side of highway 89. Along dirt fire road above park buildings. 2104 Comment
  UCD23454  Rhododendron columbianum K. Niles 1950-9-20 s.n. Humboldt Big Lagoon. Comment
  UCD33479  Rhododendron columbianum Beecher Crampton 1968-9-18 8380 Nevada Interstate Hwy. 80 summit. 2206 Comment
  UCD35832  Rhododendron columbianum Beecher Crampton 1964-8-25 7161 Plumas Lassen Volcanic National Park; Devil's Kitchen, Hot Springs Creek. 1859 Comment
  UCD37421  Rhododendron columbianum Beecher Crampton 1960-6-8 5576 Marin Marin County, Point Reyes Peninsula, 2 miles northwest of Inverness. Comment
  UCD61757  Rhododendron columbianum Ellen Dean; M. Bibbo, J. Buck, E. McDermott, J. Poloske 2007-7-21 4288 El Dorado Washoe Meadows State Park. North of largest fen. 1929 Comment
  UCD63706  Rhododendron columbianum D. Sanchez-Mata; Tomas Santamaria 2006-7-8 s.n. Sierra Forest City. Granite Mountain. Tahoe National Forest. Banner Mine Road to Harris Meadows. 1830 Comment
  UCD72575  Rhododendron columbianum N. Lozano 2007-11-2 s. n. El Dorado D. L. Bliss State Park. 1950 Comment
  UCD77802  Rhododendron columbianum Robert E. Preston 2002-7-13 1919 Siskiyou Klamath National Forest, Rainbow Lake 1828 Comment
  UCD83467  Rhododendron columbianum Albert Grigarick 2009-7-6 139 Nevada Donner Pass. Pacific Crest Trail, N of Hwy 40, ca. 0.5 mi NE of hwy on trail, near small lake. 2120 Comment
  UCR255425  Rhododendron columbianum Ann Howald 2014-6-18 3111 Mono Eastern Sierra Nevada Mtns., Lundy Canyon trail, Mill Creek drainage, west of Mono Lake; c. 0.6 mile above trailhead 2548 Comment
  UCSB15641  Rhododendron columbianum Breedlove, Dennis 1962-6-6 Mendocino Along road to Comptche; 4 miles east of Little River 198 Comment
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Jul 29 2014
  UCSB22758  Rhododendron columbianum Keefe, Joseph 1967-7-9 Del Norte Junction with Pioneer Road, 0.6 mile east of Darlingtonia on U.S. Highway 199, 2.5 miles east of Gasquet 115 Comment
  UCSB23782  Rhododendron columbianum Haller, John 1967-6-18 Mendocino Area immediately north of MacKerricher State Park, about 3 miles north of Fort Bragg 15 Comment
  UCSB26453  Rhododendron columbianum Haller, John; Bell, David; Tinnin, Robert 1969-7-12 Tulare Along banks of Big Meadows Creek, 4.5 miles northeast of General's Highway on Big Meadows Road 2286 Comment
  UCSB4795  Rhododendron columbianum Haines, A. 1936-7-10 Tuolumne Lukens Lake 2590 Comment
  UCSB4796  Rhododendron columbianum Haines, A. 1936-7-6 Mariposa Yosemite Falls Trail, Yosemite National Park 2133 Comment
  UCSB4797  Rhododendron columbianum Keator, Glenn 1959-7-12 El Dorado Northern end of Aloha Lake, Desolation Valley wilderness area Comment
  UCSB71758  Rhododendron columbianum Tatum, James 1975-7-18 Tulare On the county line along the crest of the Sierra Nevada, and within the Inyo National Forest; 5.2 miles WSW of the town of Olancha; Olancha Peak above Gomez Meadow 2900 Comment
  A362996  Rhododendron columbianum C. G. Pringle 1882-8-7 Unknown Mendocino, Swamps Comment
  CAS-BOT-BC53726  Rhododendron columbianum James McMurphy 1902-5-29 s.n. Mendocino Swamp at Coughin's Comment
  CAS-BOT-BC53741  Rhododendron columbianum Walter Knight; Irja Knight 1964-2-27 554 Sonoma Bog a few hundred yards east of highway #1 ca. 2 mi. so. of Gualala Comment
  CAS-BOT-BC53759  Rhododendron columbianum C. S. Myszka 1932-9-1 s.n. Mendocino Mendocino coast Comment
  CAS-BOT-BC56548  Rhododendron columbianum D. Guiliani 1989-10-16 s.n. Mono Cottonwood Canyon (4 mi. north of Milner Creek) 2164 Comment
  CAS-BOT-BC56583  Rhododendron columbianum Hans Leschke 1960-8-5 1693 Shasta Big Bear Lake 2042 Comment
  CAS-BOT-BC56676  Rhododendron columbianum Jean L. Pawek 1957-7-5 308 Tuolumne Along Highway 120 between Crane Flat and Tuolumne Meadows, along Tenaya Creek 2545 Comment
  CAS-BOT-BC56678  Rhododendron columbianum John H. Thomas 1963-7-23 10202 Tuolumne Near McGee Lake about 1/2 mile from Glen Aulin on trail to Tenaya Lake 2438 Comment
  CAS-BOT-BC58134  Rhododendron columbianum Derham Giuliani 1980-7-1 s.n. Inyo Milner Canyon below 9000'. White Mts. Comment
  CAS-BOT-BC58142  Rhododendron columbianum Mrs. A. L. Combs 1912-8-1 s.n. Inyo Monarch. Comment
  CAS-BOT-BC58146  Rhododendron columbianum T. J. Blestou 1912-7-20 s.n. Madera Chiquita Lake and Pass. Sierra Nevada. 2286 Comment
  CAS-BOT-BC58147  Rhododendron columbianum unspecified '29 167895 Madera Lake Chiquita. Comment
  CAS-BOT-BC58160  Rhododendron columbianum Mrs. H. C. Cantelow 1940-8-31 3776 Fresno E. slope Kaiser Pass nr. summit. Comment
  CAS-BOT-BC58161  Rhododendron columbianum Chas. H. Quibell 1954-7-10 3854 Fresno Ca 1/2 mi. sw. of 8900' Nellie Lake, near sw. terminus of kaiser Ridge, nw. of Huntington L. 2583 Comment
  CAS-BOT-BC58167  Rhododendron columbianum Wm. M. McDonald 1952-7-11 458 Fresno Below McGee Lakes on trail to Colby Meadow, at foot of The Hermit, Kings Canyon National Park. 2926 Comment
  CAS-BOT-BC58186  Rhododendron columbianum Volney Rattan 1879-1-1 10345 Siskiyou Illinois River. Comment
  CAS-BOT-BC58187  Rhododendron columbianum Volney Rattan 1879-1-1 s.n. Siskiyou Illinois River. Comment
  CAS-BOT-BC58188  Rhododendron columbianum Tompkins 1909-8-21 48 Calaveras 77 Corral, T. and R. Thompson Meadow. Sierra. 2377 Comment
  CAS-BOT-BC58191  Rhododendron columbianum Geo. Hansen 1893-9-1 794 Amador unspecified. 2438 Comment
  CAS-BOT-BC58195  Rhododendron columbianum Ben Howard; C. R. Quick 1949-9-14 49 -48 Lassen Jennie Spring, Jennie Mt., N. of Westwood, Lassen National Forest. Comment
  CDA19120  Rhododendron columbianum R. L. Penrose 2001-8-8 PDR 000513 Mendocino North Coast Ranges; Fern Creek Rd., 0.7 mi E of Hwy 1, Fort Bragg. 0 Comment
  CDA36283  Rhododendron columbianum Michael Perlmutter 2011-5-15 s.n. Marin Pt. Reyes. 0 Comment
  CDA38870  Rhododendron columbianum T. C. Fuller 1958-5-24 3996 Sonoma Pitkin Marsh, near Forestville. 0 Comment
  GH362992  Rhododendron columbianum Mrs. A. L. Coombs 1912-08-01 - 1912-09-01 Unknown Monarch Comment
  GH363013  Rhododendron columbianum F. J. Smiley 1916-8-6 676 Unknown Trail from Snow Creek to Lake Tenaya by a small creek 2590 Comment
  GH363031  Rhododendron columbianum C. H. Quibell 1957-7-27 6328 Unknown to w. below Saddle 3444 Comment
  GH363033  Rhododendron columbianum W. H. Brewer 1860-1-1 1763 Unknown Head of Tuolumne R. 2743 Comment
  GH363034  Rhododendron columbianum W. H. Brewer 1864-1-1 2809 Unknown S. Sierras Comment
  GH363035  Rhododendron columbianum W. H. Brewer 1864-1-1 2831 Unknown Southern Sierras Comment
  GH363036  Rhododendron columbianum H. N. Bolander 1866-1-1 4738 Unknown Mono Pass Comment
  LA41095  Rhododendron columbianum John Hood; 1941-7-28 41095 Madera below Minaret Lake 2773 Comment
  LA88605  Rhododendron columbianum O. H. Kappler; 1946-7-15 s.n. Tuolumne Yosemite National Park, Tuolumne Meadow. 2590 Comment
  OBI18538  Rhododendron columbianum Wallace Weber, John C. Cooke, D. J. Pinkava, & David J. Keil 1969-8-17 2111 Mariposa Meadow around Siesta lake on rte 120 in Yosemite Natl Park Comment
  PGM414  Rhododendron columbianum Tom Stephenson 1967-6-21 Monterey Gabilan Range, Fremont Peak W side, cultivated by V. Yadon Comment
  SDSU2875  Rhododendron columbianum D. F. Howe 1962-8-17 3454 Fresno 13 miles east of Shaver Lake on #168, Sierra National Forest. 2164 Comment
  SDSU2879  Rhododendron columbianum Wedberg 1961-7-18 663 Fresno At Summit Lake, on west slope of Kaiser Crest ca. 1 mile south from Kaiser Pass. 2743 Comment
  SEINET2030306 Image available Rhododendron columbianum Marcus E. Jones 1931-1 29074 Unknown Mendocino Comment
  SEINET2031087 Image available Rhododendron columbianum Joseph P. Tracy 1924-1 6728 Humboldt Big Lagoon 6 Comment
  UCD117831  Rhododendron columbianum County unknown Date unknown s.n. Unknown County and location unknown. Comment
  UCD117845  Rhododendron columbianum P. B. Kennedy 1916-8-1 s.n. Mono Mammoth Canyon. 2697 Comment
  UCD117880  Rhododendron columbianum T. E. Weier 1941-9-1 s.n. Tuolumne Sierra Nevada Mts. Comment
  UCSB17383  Rhododendron columbianum Haller, John 1951-7-10 Tuolumne Headwaters of the Lyell Fork of the Tuolumne River above Upper Base Camp, 1 mile northeast of the summit of Mt. Lyell, Yosemite National Park 3139 Comment
  UCSB17497  Rhododendron columbianum Gerhart, Janet 1963-7-28 Madera Near Shadow Creek, John Muir trail at Shadow Lake 2667 Comment
  UCSB17511  Rhododendron columbianum Gardner, Ivana 1963-7-29 Tuolumne Glen Aulin Trail, 3 miles northwest of Parsons Memorial Lodge, Tuolumne Meadows, Yosemite National Park 2590 Comment
  UCSB71749  Rhododendron columbianum Howard, Julian 1938-7-22 Tuolumne Laurel Lake, Yosemite National Park Comment
  UCSB71750  Rhododendron columbianum Augustine 1934-7-25 Mariposa Head Clark Creek, 1 mi. SW Mt. Clark, Yosemite National Park; Sec. Unsurveyed T. 3S R. 23E. 2895 Comment
  UCSC007870  Rhododendron columbianum Neal Kramer 1996-5-26 504 Santa Cruz Above Reggiardo Creek, Bonny Doon Ecological Reserve 430 Comment



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