Search Results — 2000 specimen records retrieved (1384 records with coordinates)
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Results for search: Collector=Nelson;   

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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/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC78055  Abies grandis Thomas Nelson; Jane Nelson 1979-9-10 5064 Humboldt Along old logging road, south of Lundbar Hills section of Eureka 48 Comment
  HSC49356  Abies grandis Thomas W. Nelson, Jane P. Nelson 1979-9-10 5064 Humboldt Along old logging road S of Lundbar Hills. Bulk Collection # 187 49 Comment
  HSC12834  Abies magnifica Thomas W. Nelson, Wilbur Peterson 1970-12-2 296 Humboldt HSC Campus, W side of tennis court Comment
  HSC33198  Acaena pinnatifida var. californica Thomas W. Nelson 1974-4-22 1202 Marin Lake Nicascio Comment
  JEPS117849  Acer glabrum var. torreyi Julie Kierstead Nelson 2006-6-16 2006 -20 Shasta Girard Lookout, 2 miles southwest of Castle Crags 1463 Comment
  JEPS117850  Acer glabrum var. torreyi Julie Kierstead Nelson 2006-6-16 2006 -21 Shasta Girard Lookout, 2 miles southwest of Castle Crags. 1463 Comment
  HSC81664  Achillea millefolium Thomas W. Nelson, Jane P. Nelson 1980-7-17 6077 Siskiyou Along FS Rd. 17, 1 mi. N of summit at county line 2073 Comment
  HSC37980  Achyrachaena mollis Thomas W. Nelson, J. P. Smith, Jane P. Nelson, James Nelson 1976-4-12 2327 Lake Along Morgan Valley Rd., 2 mi. W of Napa county line 732 Comment
  UC1543174  Achyrachaena mollis Donald G. Nelson 1937-4-18 501 Contra Costa towards Tracy on Marsh Creek Road Byron Comment
  HSC40793  Acmispon denticulatus Thomas W. Nelson, James Nelson 1976-6-22 2783 Trinity Above Senteney Rock 1524 Comment
  HSC48196  Acmispon micranthus Thomas W. Nelson, Jane P. Nelson 1978-4-29 3960 Colusa Along Bear Valley Rd., 2.5 mi. from junction with Hwy. 20 366 Comment
  HSC26793  Acmispon micranthus Thomas W. Nelson 1971-4-25 424 Trinity Hwy. 299 at Big Flat Comment
  HSC59785  Acmispon micranthus Thomas W. Nelson 1978-5-6 4013 Trinity Along State Route 299, 2 mi. N of Junction City. Comment
  HSC71088  Acmispon micranthus Thomas W. Nelson 1978-8-12 4549 Trinity Along shore of Trinity Lake at Alpine View Campground Comment
  HSC45473  Acmispon nevadensis Thomas W. Nelson, Jane P. Nelson 1978-7-2 4399 Humboldt Off FS 2S08 near Pine Mtn., road to Lost Lake 1463 Comment
  HSC82049  Acmispon nevadensis var. nevadensis Thomas W. Nelson, Jane P. Nelson 1980-6-17 5486 Trinity Along Old Hwy. 3, 1 mi. from jct. with Hwy. 3, opposite entrance to Philpot Campground 762 Comment
  HSC32798  Acmispon wrangelianus Thomas W. Nelson, Jane P. Nelson 1973-4-14 725 Trinity Above Salt Creek E of USFS campground at Salt Creek Comment
  RSA245284  Aconitum columbianum subsp. viviparum Thomas W. Nelson 1973-7-14 1097 Trinity [Unspecified] Comment
  CAS-BOT-BC412848  Aconogonon davisiae Thomas Nelson 1979-7-11 5022 Humboldt North Trinity Mountain and ridge to east. SE of Water Dog Lake 1828 Comment
  UC1543097  Acourtia microcephala Donald G. Nelson 1936-6-5 434 Orange hills n Fullerton Comment
  UC671898  Adenostoma fasciculatum Evelyn Hart Nelson 1939-7-29 5 Santa Clara Santa Cruz Mts., Loma Prieta 1160 Comment
  HSC34931  Adiantum jordanii Thomas W. Nelson, James Nelson 1975-3-25 1759 Sonoma Beside Hwy. 128, E of Geyserville at the Sonoma-Napa Co. line Comment
  HSC34735  Agastache urticifolia Thomas W. Nelson 1974-7-20 1680 Trinity Black Lassic Area 1799 Comment
  HSC35781  Agastache urticifolia Thomas W. Nelson, B. Reinhardt 1975-7-30 2096 Humboldt Head of Pilot Creek, Last Chance Ridge Comment
  HSC27605  Ageratina occidentalis Thomas W. Nelson 1973-7-14 1058 Trinity Trinity River downstream from Eagle Creek Campground Comment
  HSC44154  Agoseris grandiflora Thomas W. Nelson, Jane P. Nelson 1977-6-19 3528 Trinity Above Senteney Rock 1555 Comment
  HSC70116  Agoseris grandiflora Thomas W. Nelson, Jane P. Nelson 1978-6-23 4346 Trinity Along road to Hell to Find Lake. Comment
  HSC44088  Agoseris grandiflora Thomas W. Nelson, Jane P. Nelson 1977-9-3 3723 Humboldt N of Alder Springs 1555 Comment
  JEPS116612  Agoseris grandiflora Julie Kierstead Nelson with Rhonda Posey 2007-6-15 2007 -008 Siskiyou North side of Mt. Shasta, south of Hwy 97, along Forest Service Rd. 42N73,Hotlum Fire area burned in Feb 2006, 4 miles NE of towm of Weed Mt. Shasta 1090 Comment
  HSC32826  Agoseris heterophylla Thomas W. Nelson, D. Anderson 1973-5-6 854 Mendocino SE end of Eden Valley Comment
  HSC33097  Agoseris heterophylla Thomas W. Nelson, Jane P. Nelson 1974-5-27 1325 Mendocino Mendocino National Forest near Mendocino Pass 1524 Comment
  HSC71062  Agoseris heterophylla Thomas W. Nelson, Jane P. Nelson 1977-5-30 3396 Humboldt McKeown Ranch; along road to Anderson's Ford 854 Comment
  HSC82039  Agoseris heterophylla Thomas W. Nelson, James Nelson 1980-6-10 5408 Humboldt Along Swayback Ridge 4-wheel drive road, 2.5 mi. N of junction with FS Rd. 1S07 1463 Comment
  HSC82636  Agoseris retrorsa Thomas W. Nelson 1979-5-13 4656 Trinity Along Rd. from SR 3 to Deerlick Springs 2 mi. S of Blanchard Flats. 640 Comment
  UC1543181  Agoseris retrorsa Donald G. Nelson 1936-5-21 372 Riverside just n of meadow in valley just e of Hurkey Creek Camp; San Jacinto Mts., Mt. Thomas, Lake Hemet Comment
  HSC40827  Agoseris retrorsa Thomas W. Nelson, James Nelson 1976-7-26 3042 Humboldt Along ridge NE of Mt. Lassic (Signal Peak) 1707 Comment
  HSC39433  Allium amplectens Thomas W. Nelson, James Nelson 1976-7-9 2981 Trinity Just above Senteney Rock 1524 Comment
  HSC33208  Allium bolanderi var. bolanderi Thomas W. Nelson, Jane P. Nelson 1974-5-27 1329 Mendocino Mendocino Pass, 4 mi. SE of the Eel River Campground Comment
  HSC39434  Allium bolanderi var. bolanderi Thomas W. Nelson, James Nelson 1976-6-22 2819 Trinity Below Senteney Rock. 1463 Comment
  HSC34721  Allium campanulatum Thomas W. Nelson 1974-7-20 1686 Trinity Black Lassic area 1799 Comment
  HSC71877  Allium campanulatum Thomas W. Nelson, Jane P. Nelson 1980-6-22 5859 Tehama Shasta-Trinity National Forest, summit of Mt. Tedoc 1585 Comment
  HSC67236  Allium cratericola Thomas W. Nelson, D. Gordon 1980-5-8 5241 Trinity Along FS Rd. 2N18 above Corral Creek, 1 mi. from junction with FS Rd. 2N10 1159 Comment
  HSC67271  Allium cratericola Thomas W. Nelson, D. Gordon 1980-5-8 5230 Trinity Along Rd. 1N10 3.6 mi. W of junction with 2N07 1402 Comment
  HSC32781  Allium falcifolium Thomas W. Nelson, D. E. Anderson 1973-5-5 818 Mendocino Roberts Lake area of Eden Valley, N of Eden Valley Ranch Comment
  HSC32806  Allium falcifolium Thomas W. Nelson, D. E. Anderson 1973-5-5 814 Mendocino Roberts Lake area of Eden Valley, N of Eden Valley Ranch Comment
  HSC33112  Allium falcifolium Thomas W. Nelson, Jane P. Nelson 1974-5-27 1311 Mendocino Mendocino National Forest near Mendocino Pass 1524 Comment
  HSC35953  Allium falcifolium Thomas W. Nelson 1975-6-20 1958 Trinity Black Lassic area 1799 Comment
  HSC69988  Allium falcifolium Thomas W. Nelson 1978-6-14 4182 Del Norte Along French Hill Rd. 8.7 mi. from junction with Hwy. 199 Comment
  CAS-BOT-BC469139  Allium falcifolium Thomas W. Nelson; Jane P. Nelson 1980-6-26 5904 Mendocino Along rd 1N02 at Blue Banks, 3.6 miles south of Grizzly Flat Ranger Station, Hull Mountain Quad., Mendocino National Forest 1524 Comment
  HSC39462  Allium falcifolium Thomas W. Nelson, Alan Goes, James Nelson 1976-5-24 2588 Mendocino Along road E of Red Mtn. 1098 Comment
  HSC71219  Allium falcifolium Thomas W. Nelson, Jane P. Nelson 1979-5-19 4688 Trinity SW of Philpot Campground 915 Comment
  HSC71811  Allium falcifolium Thomas W. Nelson, Jane P. Nelson 1980-6-27 5931 Trinity Along FS Rd. 2S08, 0.6 mi. S of junction with FS Rd. 1S07 1646 Comment
  HSC71839  Allium falcifolium Thomas W. Nelson, Jane P. Nelson 1980-6-27 5962 Trinity Ridge SW from Black Lassic 1677 Comment
  RSA254849  Allium falcifolium Thomas W. Nelson, D. Anderson 1973-5-5 818 Mendocino Roberts Lake area of Eden Valley north of Eden Valley Ranch. Comment
  RSA254850  Allium falcifolium Thomas W. Nelson, D. Anderson 1973-5-5 814 Mendocino Roberts Lake area of Eden Valley north of Eden Valley Ranch. Comment
  HSC34907  Allium fimbriatum var. fimbriatum Thomas W. Nelson, James Nelson 1975-5-5 1795 Lake Beside Hwy. 29, 2 mi. N of Middletown Comment
  UC1543044  Allium fimbriatum var. fimbriatum Donald G. Nelson 1940-4-30 678 Lake 3 mi n Middletown (on road to Lower Lake, before reaching Putah Creek) Comment
  RSA296770  Allium fimbriatum var. purdyi Thomas W. Nelson, Jane P. Nelson 1978-4-29 3928 Colusa Along Bear Valley Rd. , 2 miles form jct with Hwy 20. 366 Comment
  UCR80282  Allium fimbriatum var. purdyi Thomas W. Nelson, Jane P. Nelson 1978-4-29 3928 Colusa Along Bear Valley Road c. 2 mi from the junction w/ State Route 20. 366 Comment
  SEINET3884500  Allium fimbriatum var. purdyi Thomas Nelson, Jane P. Nelson 1978-4-30 3972 Colusa State Route 20 just east of Colusa-Lake county line.; 0 549 Comment
  CAS-BOT-BC135844  Allium hoffmanii Thomas W. Nelson; James L. Nelson 1980-6-27 5956 Humboldt Saddle between Mt. Lassic and peak to east. 1676 Comment
  CHSC35544  Allium hoffmanii Thomas W. Nelson; Jane P. Nelson 1980-6-20 5666 Trinity Shasta-Trinity National Forest. Along 4-wheel drive road out Blue Point Ridge 1 mile west of junction with road 29N55. 1554 Comment
  HSC68881  Allium hoffmanii Thomas W. Nelson, Jane P. Nelson 1980-6-20 5699 Trinity Shasta-Trinity National Forest, end of Rd. 30N28A 1463 Comment
  HSC68909  Allium hoffmanii Thomas W. Nelson, Jane P. Nelson 1980-6-20 5681 Trinity Shasta-Trinity National Forest, above Rd. 29N55 at junction with spur rd., 5.6 mi. S of junction with SR 36 1677 Comment
  SEINET3884667  Allium hoffmanii Thomas W. Nelson, Jane P. Nelson 1980-6-22 5760 Trinity Dubakella Quad. Shasta-Trinity National Forest. Along Panther Camp Trail 200 yds. north of junction with road 29N73; 3 miles from Hayfork Creek.; 0 1646 Comment
  SEINET3884719  Allium hoffmanii Thomas W. Nelson, James Nelson 1980-6-10 5418 Humboldt Blocksburg Quad. Along road to Red Mountain 0.5 miles west of junction with Swayback Ridge Road.; 0 1372 Comment
  UCD138544  Allium hoffmanii Thomas W. Nelson; James L. Nelson 1980-6-10 5417 Humboldt along road to Red Mountain 0.5 mile west of junction with Swayback Ridge Road. 1371 Comment
  CAS-BOT-BC419719  Allium hyalinum Julie Kierstead Nelson 2005-5-14 2005 -012 Shasta 5 mi. N of Shasta College, NE of Redding; floodplain of unnamed tributary to Stillwater Creek 198 Comment
  CHSC36949  Allium peninsulare P. D. Nelson 1979-4-25 Butte Ca 150 ft s of Bidwell Park Rd at Salmon Hole, ca 9 mi e of California State University Chico. Ca. 30 ft n of Big Chico Creek. 152 Comment
  HSC75240  Allium siskiyouense Thomas W. Nelson, Jane P. Nelson 1980-6-19 5665 Trinity Shasta-Trinity National Forest, along FS Rd. 29N59, 0.5 mi. E of junction with FS Rd. 30N29, Rattlesnake Ridge 1433 Comment
  HSC97337  Allium tuolumnense Thomas W. Nelson, Jane Nelson 2006-6-23 9421 Tuolumne 1 mi. NE of Chinese House, Red Hills, Chinese Camp 348 Comment
  JEPS123437  Allium validum Julie Kierstead Nelson with Marie Buell 2015-7-18 2015 -117 Trinity Yolla Bolly Wilderness; near Tehama County line; 0.3 miles W of North Yolla Bolly; headwaters of the east fork of the south fork of Trinity River. Comment
  HSC42107  Allium validum Thomas W. Nelson, Jane P. Nelson 1977-8-6 3704 Humboldt Along S side of Lassic Peak 1463 Comment
  CHSC110542  Alnus incana subsp. tenuifolia Julie Kierstead Nelson; Martin Lenz, Rhonda Posey, Don Lepley, Brenna Mon 2012-8-31 2012 -092 Shasta Peavine fen, north of Pit River, west of Hwy.89, south of Red Mountain, near Pacific Crest Trail; southern Cascasdes; 1533 Comment
  JEPS128450  Alnus rhombifolia Julie Kierstead Nelson with Martin Lenz 2015-5-18 2015 -045 Shasta Sacramento River canyon west of Interstate 5 east of Eagles Roost Road and railroad tracks; at Gibson curve. Comment
  RSA254818  Alnus rhombifolia Thomas W. Nelson, D. Anderson 1973-5-6 893 Mendocino Road to Eden Valley, east side of summitt. Comment
  GH414280  Ambrosia monogyra A. Nelson & R. E. Nelson 1939-4-2 3390 Unknown Near Shoshone Comment
Read comments
Nov 17 2014
  CAS-BOT-BC273032  Ambrosia salsola Aven Nelson; Ruth Nelson 1939-3-22 3220 Riverside Near Palm Springs Comment
  UC724141  Ambrosia salsola var. salsola Aven and Ruth Nelson 1939-3-22 3220 Riverside near Palm Springs Comment
  HSC38029  Amelanchier alnifolia var. semiintegrifolia Thomas W. Nelson 1976-5-5 2495 Trinity Burnt Ranch, beside Hwy. 299 Comment
  UC1543250  Amelanchier utahensis Donald G. Nelson 1940-4-30 673 Lake about 1 mi below Siegler Hot Springs (along creek) Comment
  UC1543190  Amorpha fruticosa Donald G. Nelson 1935-4-6 220 Orange n summer ranger station (near the main hwy of San Juan Canyon, e of San Juan Capistrano, s of Cleveland Nat. Forest); Santa Ana Mountains Comment
  CHSC78064  Amsinckia intermedia Terry Nelson 1998-4-26 240 -19 Shasta Growing along Co. rd 143. 3.5 mi e of the Sacramento River and 400 yds n of Battle Creek. 176 Comment
  HSC26303  Amsinckia intermedia Thomas W. Nelson 1971-4-24 396 Trinity Along New River Trail Comment
  UC724326  Amsinckia tessellata var. tessellata Aven Nelson, Ruth A. Nelson 1939-4-1 33373 San Bernardino between Blythe and Needles (near Vidal) Comment
  HSC27391  Anaphalis margaritacea Thomas W. Nelson 1970-9-3 230 Humboldt Mad River. Comment
  UCR63021  Anaphalis margaritacea Donald G. Nelson 1939-8-14 632 Alameda San Francisco Bay Region, Cragmont area of North Berkeley; on Miller Ave. 305 Comment
  HSC81710  Anaphalis margaritacea Thomas W. Nelson, Jane P. Nelson 1980-8-12 6237 Humboldt Logging roads S of Lundbar Hills 61 Comment
  RSA517732  Anaphalis margaritacea Donald G. Nelson 1939-8-14 632 Alameda Cragmont area of north Berkeley, along Miller Ave. Comment
  HSC81866  Ancistrocarphus filagineus Thomas W. Nelson, Jane P. Nelson 1980-5-3 5142 Napa Along Butts Canyon Rd. N of Pope Valley 274 Comment
  HSC71231  Anemone oregana var. oregana Thomas W. Nelson, Jane P. Nelson 1977-4-23 3339 Trinity Brown's Canyon Campground 793 Comment
  HSC81708  Angelica californica Thomas W. Nelson, Jane P. Nelson 1980-8-22 6282 Shasta Along road to water supply for Basin Creek Campground opposite S unit 823 Comment
  JEPS120188  Angelica tomentosa Julie Kierstead Nelson 2011-8-23 2011 -42 Siskiyou Eastern Klamath Mountains, The Eddys. North side of Fawn Creek, 2 miles NE of Gumboot Lake Comment
  HSC44091  Anisocarpus scabridus Thomas W. Nelson, Jane P. Nelson 1977-8-6 3707 Trinity N slope of Black Lassic 1677 Comment
  UC1442639  Anisocarpus scabridus Thomas Nelson and Jane Nelson 1977-8-6 3713 Trinity along e slope Black Lassic 1676 Comment
  RSA517745  Anisocoma acaulis Donald G. Nelson 1936-5-21 378 Riverside Slopes just N of meadow in valley just E of Hurkey Creek Camp area, East of Lake Hemet, and N of Mt. Thomas. In San Jacinto Mtns. Comment
  HSC103575  Antennaria argentea Thomas W. Nelson, Jane Nelson 1985-6-19 7820 Siskiyou In and about Scott Mountain Campground. 1646 Comment
  JEPS120182  Antennaria argentea Julie Kierstead Nelson with Rhonda Posey, Peter Zika, Talitha Derksen 2012-6-21 2012 -054 Siskiyou Headwaters of South Fork Willow Creek, foothills of N side Scott Mountain. Along Rd. 42N42Y .2 mi. E of junction with 42N19 Comment
  HSC70102  Antennaria microphylla Thomas W. Nelson, Jane P. Nelson 1978-6-22 4281 Trinity Along Dubakella Rd., 2.3 mi. from junction with Hwy. 36, intersection of FS 29N31 and FS 29N55 1402 Comment
  HSC82640  Antennaria microphylla Thomas W. Nelson 1979-5-13 4660 Trinity Along Rd. from SR 3 to Deerlick Springs 2 mi. S of Blanchard Flats. 640 Comment
  CAS-BOT-BC428042  Antennaria rosea subsp. rosea Julie Kierstead Nelson; Jordan Rainbow 2014-5-21 2014 -017 Siskiyou Forest Road 42N84 off Highway 97, north side of Mt. Shasta. 1088 Comment
  RSA296763  Antennaria suffrutescens Thomas W. Nelson 1978-6-14 4181 Del Norte Along French Hill Rd. 8.7 mi from jct with State Route 199. Comment
  UC1543249  Aphanes occidentalis Donald G. Nelson 1938-4-24 567 Contra Costa Marsh Creek Highway, 1 mile north of Mt. Diablo Comment
  HSC69765  Apocynum androsaemifolium Thomas W. Nelson, Jane P. Nelson 1977-9-4 3741 Trinity Along F.S. Road 29N30 just S of Pine Root Spring. 1372 Comment
  SD129704  Apocynum androsaemifolium Donald G. Nelson 1940-8-7 711 Lake Near Reiff Post Office in southeast Lake County, road from Knoxville to Lower Lake. Comment
  HSC70013  Aquilegia eximia Thomas W. Nelson, Jane P. Nelson 1978-7-21 4439 Tehama Along Tedoc Rd., 10 mi. from junction with Hwy. 36, N side of Mt. Tedoc Comment
  HSC70084  Aquilegia eximia Thomas W. Nelson, Jane P. Nelson 1978-6-22 4261 Trinity Along Old Hwy. 3 below entrance to Philpot Campground 762 Comment
  UC671915  Aquilegia formosa Evelyn Hart Nelson 1940-5-18 98 Santa Clara Loma Pritea Santa Cruz Mtns 1051 Comment
  HSC82481  Aquilegia formosa Thomas W. Nelson, Jane P. Nelson 1979-6-14 4793 Trinity W side of Hwy. 3, across Trinity River from mouth of Bear Creek 915 Comment
  HSC32892  Arabis breweri var. breweri Thomas W. Nelson 1973-5-30 998 Trinity Red Lassic area 1799 Comment
  HSC81529  Arabis divaricarpa Thomas W. Nelson, Jane P. Nelson 1980-7-19 6196 Siskiyou Along USFS Rd. 39N01 A at Fox Creek, 1 mi. from jct. with 39N01 1677 Comment
  HSC38274  Arabis mcdonaldiana Thomas W. Nelson, Alan Goes 1976-5-3 2395 Mendocino E side of Red Mtn. 1159 Comment
  HSC97241  Arabis mcdonaldiana Thomas W. Nelson, Jane Nelson 2003-6-19 9159 Mendocino Red Mtn. 1159 Comment
  HSC44081  Arabis platysperma Thomas W. Nelson, Jane P. Nelson 1977-8-6 3712 Trinity N slope of Black Lassic 1677 Comment
  HSC67240  Arabis subpinnatifida Thomas W. Nelson, D. Gordon 1980-5-8 5238 Trinity Along FS Rd. 1N10, 1 mi. from junction with FS Rd. 2N07 1372 Comment
  HSC67320  Arabis subpinnatifida Thomas W. Nelson, Jane P. Nelson 1980-5-7 5186 Trinity Along FS 29N58, Rattlesnake Ridge, at junction with FS 29N67 1341 Comment
  HSC68594  Arabis subpinnatifida Thomas W. Nelson, Jane P. Nelson 1980-6-18 5546 Trinity Along Hwy. 3, 0.4 mi. S of Salt Creek Bridge 762 Comment
  HSC82564  Arabis subpinnatifida Thomas W. Nelson, Jane P. Nelson 1979-5-26 4724 Siskiyou Along Hwy. 3, N of Scott Mtn. Summit, at junction with FS Rd. 40N03 1524 Comment
  HSC32775  Arbutus menziesii Thomas W. Nelson, D. E. Anderson 1973-5-5 831 Mendocino Roberts Lake Area of Eden Valley. N of Eden Valley Ranch. Comment
  UC672022  Arbutus menziesii Evelyn Hart Nelson 1939-10-22 49 Santa Clara Loma Prieta; Santa Cruz Mountains, Loma Prieta 975 Comment
  CHSC118446  Arceuthobium abietinum Julie Kierstead Nelson; Susan Erwin 2014-11-24 2014 -091 Trinity South Fork Mountain, 3 miles southeast of Blake Mountain, off Rd. 06N01, near Humboldt County boundary. UTM NAD 83 Zone 10, 453475m E, 4493890m N. 1633 Comment
  UC1543113  Arctostaphylos Donald G. Nelson 1937-3-14 451 Marin se bank dam at e end of Phoenix Lake (w of Ross and n of Mt. Tamalpais, along e side of trail of Lake Phoenix) Comment
  HSC38201  Arctostaphylos canescens Thomas W. Nelson, James Nelson, Jane P. Nelson, J. P. Smith 1976-4-14 2380 Glenn Along Sanhedrin Rd. ca. 1 mi. S of jct. with road to Plaskett Meadow 1280 Comment
  UC672021  Arctostaphylos canescens subsp. canescens Evelyn Hart Nelson 1940-7-2 151 Santa Clara between spring and Iron House fire trail; Santa Cruz Mountains, Loma Prieta 975 Comment
  JEPS128424  Arctostaphylos canescens subsp. sonomensis Julie Kierstead Nelson with Brad Rust 2015-3-27 2015 -008 Tehama East slope of Tedoc Mountain near summit, SE Klamath Range; Forest Service Road 28N60. Comment
  RSA517753  Arctostaphylos cinerea Donald G. Nelson 1938-11-9 596 Alameda Skyline Boulevard, hilltop, Oakland Hills. Comment
  HSC33059  Arctostaphylos columbiana Thomas W. Nelson 1974-5-7 1238 Humboldt Kneeland Rd. at jct. with Maple Creek Rd. Comment
  HSC35750  Arctostaphylos columbiana Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 1994 Humboldt French Camp, Bald Hills. Comment
  HSC37842  Arctostaphylos columbiana Thomas W. Nelson, James Nelson 1976-3-11 2267 Humboldt Beside Hwy. 101 along N side of Table Bluff Comment
  HSC35718  Arctostaphylos glandulosa Thomas W. Nelson, J. O. Sawyer 1975-10-9 2229 Mendocino At jct. of Cat Track Rd. and BLM road to School Section Creek 732 Comment
  JEPS128829  Arctostaphylos glandulosa subsp. glandulosa Julie Kierstead Nelson with Lusetta Sims, Belinda Lo, Kellie Eldridge 2017-6-14 2017 -009 Shasta Northwestern Beegum Creek watershed, western Shasta County near Tehama and Trinity County lines; west of I-5, south of Hwy 36, southern Klamath Ranges. Along Road 28N10. Comment
  RSA258894  Arctostaphylos glandulosa subsp. glandulosa Thomas W. Nelson 1974-4-22 1220 Marin beside the middle peak of Mt.Tamalpais. Comment
  HSC35782  Arctostaphylos patula Thomas W. Nelson, B. Reinhardt 1975-7-30 2097 Humboldt Head of Pilot Creek, Last Chance Ridge Comment
  HSC40857  Arctostaphylos patula Thomas W. Nelson 1976-7-9 2990 Humboldt Ridge S of the E peak of the Lassic Peak (Signal peak) group. 1707 Comment
  HSC38198  Arctostaphylos stanfordiana Thomas W. Nelson, J. P. Smith, Jane P. Nelson, James Nelson 1976-4-13 2372 Lake Along rd. 2 mi. E of Bartlet Springs 610 Comment
  HSC96668  Arctostaphylos stanfordiana subsp. raichei Thomas W. Nelson, Jane P. Nelson 2003-6-13 9137 Mendocino Along rd. around the S side of the summit of Little Red Mtn. 915 Comment
  HSC32695  Arctostaphylos viscida Thomas W. Nelson, Jane P. Nelson 1973-4-24 786 Mendocino Beside jeep road to Roberts Lake, N of Eden Valley Ranch. Comment
  HSC33144  Arctostaphylos viscida Thomas W. Nelson, Jane P. Nelson 1974-4-11 1177 Mendocino Summit overlooking Round Valley Comment
  HSC38009  Arctostaphylos viscida Thomas W. Nelson, Alan Goes 1976-5-23 2563 Mendocino Along road to Little Red Mtn. 823 Comment
  HSC70180  Arctostaphylos viscida Thomas W. Nelson, Jane P. Nelson 1978-7-21 4425 Trinity Along SR 3 ca. 1/4 mi. from Salt Creek Bridge 762 Comment
  HSC70019  Argemone munita Thomas W. Nelson, Jane P. Nelson 1978-7-21 4433 Shasta Along Hwy. 36, 1 mi. E of Co. line Comment
  CAS-BOT-BC207147  Argythamnia lanceolata Aven Nelson; Ruth Nelson 1939-3-24 3240 San Diego Palm Canyon, Borego State Park Comment
  GH341041  Aristida californica A. Nelson 1930-2-27 11157 a Unknown Yuma-El Centro, California Comment
Read comments
Jul 5 2012
  UC700987  Aristida purpurea var. nealleyi Aven and Ruth Nelson 1938-4-4 3400 Inyo Maurandia Canyon Death Valley ((a branch of Titus Canyon), n end of Death Valley) Comment
  CHSC78058  Aristolochia californica Terry Nelson 1998-4-18 240 -5 Shasta Along Battle Creek 6 mi e of Cottonwood. 1 mi e of the Sacramento River and 10 ft. n of Battle Creek. 131 Comment
  HSC33417  Arnica cernua Thomas W. Nelson 1974-5-30 1345 Humboldt Along Hoopa-Redwood Valley Rd. Comment
  HSC46207  Arnica cernua Thomas W. Nelson 1977-6-15 3435 Humboldt Horse Mtn.; along USFS Rd. 5N10 about 100 m south of junction with USFS Rd. 6N01 Comment
  HSC34913  Arnica cordifolia Thomas W. Nelson, Jane P. Nelson 1975-5-24 1852 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC82255  Arnica cordifolia Thomas W. Nelson, Jane P. Nelson 1980-7-20 6178 Siskiyou Hillside above Big Carmen Lake 1738 Comment
  HSC33626  Arnica discoidea Thomas W. Nelson, Jane P. Nelson 1976-6-15 2730 Humboldt Growing on FS road N of Alder Springs 1524 Comment
  JEPS120257  Arnica lanceolata subsp. prima Julie Kierstead Nelson 2011-9-7 2011 -47 Siskiyou Eastern Klamath Mountains, The Eddys, Headwaters of Parks Creek at base of China Mountain, NW of Caldwell Lakes Basin Comment
  CAS-BOT-BC465595  Arnica mollis Julie Kierstead Nelson; Martin Lenz 2015-6-18 2015 -063 Siskiyou Headwaters of West Fork Parks Creek, 2 mi NNE of China Mountain; 7 mi W of town of Weed 2197 Comment
  JEPS128462  Arnica mollis Julie Kierstead Nelson with Martin Lenz 2015-6-18 2015 -063 Siskiyou Headwaters of West Fork Parks Creek, 2 miles NNE of China Mountain; 7 miles W of town of Weed. Comment
  HSC68856  Arnica spathulata Thomas W. Nelson, Jane Nelson 1980-6-20 5719 Trinity Shasta-Trinity National Forest, along Forest Service Rd. 29N73, 1.6 mi. S of junction with Hwy. 36 1220 Comment
  HSC70007  Artemisia douglasiana Thomas W. Nelson, Jane P. Nelson 1978-7-22 4448 Tehama Along road to Handy Camp Gulch, 0.25 mi. E of Wells Creek 1372 Comment
  HSC34669  Artemisia ludoviciana subsp. ludoviciana Thomas W. Nelson, J. O. Sawyer 1974-10-29 1739 Siskiyou Hwy. 3, just S of Calaghan Comment
  JEPS116595  Asarum caudatum Julie Kierstead Nelson 2006-5-10 2006 -4 Shasta Confluence of Goods Creek & South Fork Goods Creek at junction of Hwy 36 and Rd. 29N28, about 50 miles W of Red Bluff 1036 Comment
  JEPS121709  Asarum caudatum Julie Kierstead Nelson with Martin Lenz 2014-5-27 2011 -031 Shasta Deep Creek, 4 miles southeast of Big Bend, south side of Pit River. Next to Road 37N36. Comment
  HSC25981  Asclepias cordifolia Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-21 1944 Trinity S of Brown's Canyon Campground Comment
  HSC82061  Asclepias cordifolia Thomas W. Nelson, Jane P. Nelson 1980-4-27 5104 Yolo Along SR 16, 100 m E of bridge over Cache Creek, 4.2 mi. from county line 152 Comment
  HSC33168  Asclepias fascicularis Thomas W. Nelson 1973-8-19 1108 Trinity Black Lassic area 1799 Comment
  HSC67285  Asclepias solanoana Thomas W. Nelson, Jane P. Nelson 1980-6-17 5495 Trinity Shasta-Trinity National Forest, along Salt Creek Rd. at junction with FS Rd. 30N24 945 Comment
  HSC67349  Asclepias solanoana Thomas W. Nelson, Jane P. Nelson 1980-5-25 5269 Trinity Six Rivers National Forest, above Little Red Mtn. Creek along trail S from Blue Jay Mine 1067 Comment
  HSC68834  Asclepias solanoana Thomas W. Nelson, Jane P. Nelson 1980-6-19 5631 Trinity Along Old State Rte. 36 (Post Creek Rd.) at bridge over Glade Creek 884 Comment
  SBBG93247  Asclepias vestita D. G. Nelson 1937-4-24 520 Contra Costa Marsh Crk Rd, between Byron and Clayton Comment
  HSC38015  Aspidotis densa Thomas W. Nelson, Alan Goes 1976-5-23 2569 Mendocino Along road to Little Red Mtn. 823 Comment
  HSC67193  Aspidotis densa Thomas W. Nelson 1980-6-10 5418 Humboldt Along road to Red Mtn., 0.5 mi. W of junction with Swayback Ridge Rd. 1372 Comment
  HSC67333  Aspidotis densa Thomas W. Nelson 1980-5-30 5373 Trinity Along Rd 4N09, 1.9 miles from junction with road 60 (Underwood Mountain Rd) 1128 Comment
  HSC67362  Aspidotis densa Thomas W. Nelson, Jane Nelson 1980-5-25 5274 Trinity Six Rivers National Forest, above Little Red Mtn. Creek along trail S from Blue Jay Mine 1067 Comment
  HSC67466  Aspidotis densa Thomas W. Nelson, Jane Nelson 1980-5-25 5335 Trinity Along Covelo-Zenia Rd., 0.5 mi. S of Kettenpom store 1037 Comment
  HSC68584  Aspidotis densa Thomas W. Nelson, Jane Nelson 1980-6-17 5532 Trinity Shasta-Trinity National Forest, along FS Rd. 1N12, 1.1 mi. from junction with FS Rd. 2N07 1006 Comment
  HSC68695  Aspidotis densa Thomas W. Nelson, D. Gordon 1980-6-10 5569 Trinity Shasta-Trinity National Forest, along FS Rd. 1N05 at the copper mine along Copper Mine Hill 1463 Comment
  HSC71898  Aspidotis densa Thomas W. Nelson, Jane Nelson 1980-6-22 5831 Shasta Shasta-Trinity National Forest, junction of FS Rd. 41 and FS Rd. 28N08 1220 Comment
  HSC44044  Aspidotis densa Thomas W. Nelson, Jane Nelson 1977-7-4 3599 Humboldt Along old trail N of Alder Spring 1555 Comment
  HSC103541  Astragalus breweri Thomas W. Nelson, Jane Nelson 1981-4-14 6391 Napa Junction of Morgan Valley and Devil's Head Roads. 457 Comment
  JEPS116601  Astragalus californicus J. K. Nelson with Rhonda Posey, Mary Ellen Colberg, Twyla Miller 2006-5-19 2006 -14 Siskiyou North side of Mt. Shasta south of Hwy 97; Hotlum Fire area burned in Feb 2006 1100 Comment
  HSC99986  Astragalus californicus Thomas W. Nelson 2005-7-16 9377 Siskiyou Along F. S. Rd. 42N16. 1337 Comment
  HSC97238  Astragalus clevelandii Thomas W. Nelson, Dick Brummitt & Barbara Ertter 2004-7-1 9262 Mendocino Along Toney Creek upstream from crossing of Toney Creek Rd., Eden Valley. Comment
  UC1543239  Astragalus douglasii Donald G. Nelson 1936-5-21 380 Riverside n Mt. Thomas (e of Lake Hemet, slopes just n of meadow in valley just e of Jurkey Creek Camp area, San Jacinto Mountains); San Jacinto Mountains, e of Lake Hemet, n of Mt. Thomas Comment
  HSC33221  Astragalus gambelianus Thomas W. Nelson 1974-4-22 1216 Marin At Rock Springs besides rd. out Bolinas Ridge. Comment
  UC724217  Astragalus layneae Aven and Ruth Nelson 1939-4-4 3407 Inyo between the California-Nevada line and Beatty (Desert); <near> Beatty Comment
  HSC82283  Astragalus purshii var. lectulus Thomas W. Nelson, Jane P. Nelson 1979-6-15 4803 Siskiyou Along road to Carmen Lake, 0.6 mi. from junction with State Route. 1646 Comment
  CAS-BOT-BC192860  Astragalus purshii var. lectulus Thomas W. Nelson; James L. Nelson 1980-6-10 5405 Humboldt Along Swayback Ridge 4-wheel drive road ca 2.5 miles north of junction with Forest Service road 1S07 1463 Comment
  HSC82034  Astragalus purshii var. lectulus Thomas W. Nelson, James Nelson 1980-6-10 5402 Humboldt Along Swayback Ridge 4-wheel drive road, 2.5 mi. N of junction with FS Rd. 1S07 1463 Comment
  RSA415677  Astragalus purshii var. lectulus Thomas W. Nelson, James Nelson, A. Nelson 1976-6-10 2661 Trinity Trinity-Humboldt Co. line; Talus along ridge above Sentenay Rock. 1555 Comment
  HSC69836  Astragalus rattanii var. rattanii Thomas W. Nelson 1978-5-27 4065 Trinity Along trail to Red Mtn. 1250 Comment
  HSC71068  Astragalus rattanii var. rattanii Thomas W. Nelson, Jane P. Nelson 1977-5-30 3402 Humboldt Above Mad River at Anderson's Ford. 640 Comment
  CAS-BOT-BC193161  Astragalus sabulonum Aven Nelson; Ruth Nelson 1939-3-29 3307 Riverside About 8 miles southeast of Mecca, on hiway to Hidden Springs Comment
  HSC103507  Astragalus umbraticus Thomas W. Nelson, Jane Nelson 1987-6-11 8526 Humboldt Along Forest Service Rd. 13N01, 9 mi. from junction with State Route 96 762 Comment
  SFV18601  Astragalus umbraticus T. W. Nelson, J. P. Nelson 1987-6-27 8620 Humboldt Along USFS road to Onion Lake, 8.2 miles from junction with State Route 96. 823 Comment
  HSC67278  Astragalus whitneyi var. siskiyouensis Thomas W. Nelson, Jane P. Nelson 1980-6-17 5469 Trinity Shasta-Trinity National Forest, along old Hwy. 36, 1 mi. W of Hwy. 3 near Peanut 793 Comment
  HSC81752  Astragalus whitneyi var. siskiyouensis Thomas W. Nelson, Jane P. Nelson 1980-7-20 6190 Siskiyou Above and to SE of Big Carmen Lake 1738 Comment
  HSC82563  Astragalus whitneyi var. siskiyouensis Thomas W. Nelson, Jane P. Nelson 1979-5-26 4722 Siskiyou Along Hwy. 3, N of Scott Mtn. Summit, at junction with FS Rd. 40N03 1524 Comment
  HSC28241  Astragalus whitneyi var. siskiyouensis Thomas W. Nelson 1973-7-14 1096 Trinity At the head of the trail to Deadfall Lake. 1982 Comment
  HSC41197  Asyneuma prenanthoides Thomas W. Nelson, Jane P. Nelson 1977-7-1 3562 Humboldt Along N side of ridge between Bear and Blanket Creeks. 1494 Comment
  SFV18602  Asyneuma prenanthoides T. W. Nelson, J. P. Nelson 1987-6-27 8619 Humboldt Along USFS road to Onion Lake, 8.2 miles from junction with State Route 96. 823 Comment
  HSC44050  Athyrium filix-femina var. cyclosorum Thomas W. Nelson, Jane Nelson 1977-6-19 3493 Humboldt Above Alder Springs, N of pond 1585 Comment
  HSC33118  Athysanus pusillus Thomas W. Nelson, Jane P. Nelson 1974-5-26 1300 Glenn Just W of Telephone Camp, Mendocino National Forest 2104 Comment
  HSC44082  Athysanus pusillus Thomas W. Nelson, Jane P. Nelson 1977-4-24 3353 Trinity Along USFS Rd. 5E27, N of junction with Rd. 1S07 1524 Comment
  CAS-BOT-BC170291  Atriplex confertifolia Aven Nelson; Ruth Nelson 1939-4-2 3391 Inyo Near Shoshone Comment
  GH376413  Atriplex lentiformis A. Nelson 1930-3-1 1153 a Unknown Indio Comment
  UC724155  Atriplex parryi Aven and Ruth Nelson 1939-4-2 3392 Inyo among lava rocks near Shoshone (Highway 127 California); near Shoshone Comment
  CAS-BOT-BC213220  Ayenia compacta Aven Nelson; Ruth A. Nelson 1939-3-25 3276 San Diego Palm Grove, Borego Desert Comment
  UC724375  Ayenia compacta Aven Nelson, Ruth A. Nelson 1939-3-25 3276 San Diego Palm Grove Borego Desert Comment
  HSC26647  Baccharis pilularis subsp. consanguinea Thomas W. Nelson 1972-11-26 712 El Dorado Comment
  UC724349  Baileya pauciradiata Aven Nelson, Ruth A. Nelson 1939-3-29 3313 Riverside between Mecca and Hidden Springs Comment
Read comments
Feb 3 2011
  UCR16888  Baileya pauciradiata S. Nelson 1974-4-13 s.n. Riverside Sonoran (Colorado) Desert, [Coachella Valley] 2 mi north of U.S. Highway 10 on Washington St. 153 Comment
  HSC26635  Balsamorhiza deltoidea Thomas W. Nelson 1971-5-31 457 Humboldt Adjacent to the Mad River N of Dinsmore Comment
  HSC35033  Balsamorhiza deltoidea Thomas W. Nelson, James Nelson 1975-5-24 1850 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC82617  Balsamorhiza deltoidea Thomas W. Nelson 1979-5-13 4655 Trinity Along Rd. from SR 3 to Deerlick Springs 2 mi. S of Blanchard Flats. 640 Comment
  CHSC105877  Balsamorhiza sericea Julie Kierstead Nelson 2010-5-31 2010 -009 Trinity Eagle Creek Loop, west side of upper Trinity River; at start of Rd. 38N13Y, 1/2 mile N of confluence Ramshorn Creek and Trinity River. 853 Comment
  HSC103648  Balsamorhiza sericea Thomas W. Nelson, Jane Nelson 1985-6-19 7818 Siskiyou In and about Scott Mountain Campground. 1646 Comment
  HSC75155  Balsamorhiza sericea Thomas W. Nelson, Jane P. Nelson 1979-5-26 4716 Siskiyou Along Hwy. 3, N of Scott Mtn. Summit, at junction with FS Rd. 40N03 1524 Comment
  HSC39056  Barbarea orthoceras Thomas W. Nelson, Jane P. Nelson 1976-5-31 2642 Humboldt N of junction of FS Rds. 1S07 and 5E27 along 5E27 1524 Comment
  HSC40621  Barbarea orthoceras Thomas W. Nelson, James Nelson 1976-6-22 2840 Trinity Below Senteney Rock 1494 Comment
  HSC26814  Barbarea verna Thomas W. Nelson 1971-3-30 364 Humboldt Beside Grizzley Bluff Rd. near Ferndale Comment
  CAS-BOT-BC106418  Bebbia juncea var. aspera Aven Nelson; Ruth A. Nelson 1939-4-4 3419 Inyo Mouth of Tuts Canyon - Death Valley Comment
  UC724318  Bebbia juncea var. aspera Aven Nelson, Ruth A. Nelson 1939-4-4 3419 Inyo Mouth of Titus Canyon, Death Valley Death Valley, Mouth of Titus Canyon Comment
  UC1543196  Bellis perennis Donald G. Nelson 1940-7-7 696 San Mateo on road from Half Moon Bay to San Mateo Pilarcitos Creek 76 Comment
  HSC35711  Berberis aquifolium Thomas W. Nelson 1975-10-12 2238 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC36801  Berberis aquifolium Thomas W. Nelson 1975-7-20 2066 Trinity Black Lassic Area 1799 Comment
  HSC40543  Berberis aquifolium Thomas W. Nelson, Jane Nelson 1976-5-23 2531 Trinity E side of Black Lassic, S side of branch of Shanty Creek 1524 Comment
  HSC40990  Berberis aquifolium Thomas W. Nelson, Jane Nelson 1976-6-10 2672 Trinity Along Rd. 5E27 N of its junction with Rd. 1S07 1555 Comment
  HSC81955  Berberis aquifolium var. repens Thomas W. Nelson, Jane Nelson 1979-6-25 4896 Tehama Along road from Tedoc Gap to Well's Creek, 0.25 mi. SE of Weston Ranch 1280 Comment
  HSC39525  Berberis nervosa Thomas W. Nelson, Jane Nelson 1976-6-15 2715 Humboldt Along old trail from lookout to Blocksburg 1585 Comment
  HSC35712  Berberis pinnata Thomas W. Nelson 1975-10-12 2236 Humboldt McKeown Ranch, N of Dinsmore Comment
  JEPS120186  Betula occidentalis Julie Kierstead Nelson with Rhonda Posey, Peter Zika, Talitha Derksen 2012-6-21 2012 -058 Siskiyou South Fork Willow Creek, foothills of N side Scott Mountain Rd. ca. 1 mile S of Gazelle-Callahan Hwy. Comment
  HSC81631  Bistorta bistortoides Thomas W. Nelson, Jane P. Nelson 1980-7-17 6111 Trinity Along FS Rd. 17 at summit at county line 2073 Comment
  HSC82358  Bistorta bistortoides Thomas W. Nelson, Jane P. Nelson 1978-7-24 4519 Siskiyou Siskiyou-Trinity County line, head of Scott Mtn. Creek, S of Forest Service campground 1646 Comment
  HSC35726  Blechnum spicant Thomas W. Nelson 1975-1-16 1747 Humboldt E of HSU campus Comment
  HSC97695  Blepharipappus scaber Thomas W. Nelson, Shauna Hee 2006-8-4 9469 Trinity Hwy. 299, 100 m SE of bridge over Stuart Fork of Trinity River 730 Comment
  SFV18484  Boechera breweri T. W. Nelson, J. P. Nelson, J. Nelson 1975-6-20 s. n. Trinity Along road 5E27 just north of junction with 1S07. Comment
  JEPS120253  Boechera serpenticola Julie Kierstead Nelson 2013-6-18 2011 -002 Trinity Upper Hayfork Creek watershed, west of Wild-Mad Road, south of Hwy. 36, ca. 45 miles west-northwest of Red Bluff, junction of Forest Roads 29N33 and 29N34 Comment
  CAS-BOT-BC25926  Boechera suffrutescens Thomas W. Nelson; Jane P. Nelson 1980-7-17 6094 Siskiyou Along Forest Service road 17, 0.5 mile north of summit at county line. Comment
  UCSB11232  Bolboschoenus maritimus Nelson, Kristine 1961-5-20 Santa Barbara At W side of El Encanto Heights Tract; at Tuolumne and Ellwood Sta. Road; 2.3 mi. W of Goleta on Hwy. 101 Comment
  HSC69759  Bolboschoenus robustus Thomas W. Nelson 1977-9-22 3748 Humboldt E side of SR 101 just N of the Eureka Airport Comment
  CDA42237  Brandegea bigelovii Don Nelson 1973-1-3 s.n. Riverside 12 miles north of Blythe on Midland Road. 0 Comment
  UC724362  Brandegea bigelovii Aven and Ruth Nelson 1939-3-28 3304 Riverside s of Mecca (near Salton Sea, Highway 111); Highway 111 Comment
  HSC32777  Brasenia schreberi Thomas W. Nelson, D. Anderson 1973-5-5 824 Mendocino Robert's Lake area of Eden Valley, N of Eden Valley Ranch Comment
  HSC32555  Brickellia californica Thomas W. Nelson 1973-9-3 1124 Humboldt McKeown Ranch N of Dinsmore Comment
  JEPS123444  Brickellia grandiflora Julie Kierstead Nelson with Marie Buell 2015-7-18 2015 -121 Trinity Yolla Bolly Wilderness; Pettijohn Basin. Comment
  HSC33181  Brickellia greenei Thomas W. Nelson 1973-8-19 1106 Trinity Black Lassic area 1799 Comment
  HSC32667  Brickellia greenei Thomas W. Nelson 1973-7-10 1019 Trinity Red Lassic area; SW side 1799 Comment
  HSC82269  Briza minor Thomas W. Nelson, Jane P. Nelson 1979-4-11 4596 Placer Along N side of Douglas Blvd., 1 mi. S of junction with I-80 Comment
  UC1543022  Briza minor Donald G. Nelson 1936-4-1 123 Napa along trail to Green Valley Falls Comment
  HSC81655  Brodiaea elegans subsp. elegans Thomas W. Nelson, Jane P. Nelson 1980-7-13 6058 Humboldt Along the rd. from Dinsmore to Anderson Ford-McKeown Ranch rd. 762 Comment
  HSC35940  Brodiaea elegans subsp. elegans Thomas W. Nelson, Jane P. Nelson 1975-7-15 2033 Humboldt Beside Bald Hills Rd. 1 mi. E of Redwood National Park Comment
  HSC69895  Brodiaea elegans subsp. elegans Thomas W. Nelson, Jane P. Nelson 1977-7-29 3637 Humboldt Beside SR 36 at head of Larabee Valley 823 Comment
  HSC82538  Brodiaea elegans subsp. elegans Thomas W. Nelson, Jane P. Nelson 1980-6-26 5917 Mendocino Along Covelo-Zenia County Road 303, 2.5 mi. N of junction with S.R. 162 671 Comment
  HSC32915  Brodiaea stellaris Thomas W. Nelson, Jane P. Nelson 1973-3-28 964 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC33078  Brodiaea terrestris subsp. terrestris Thomas W. Nelson, J. D. Ackerman 1974-5-14 1267 Humboldt Beside old Samoa-Crannell railroad bed adjacent to the Mad River Slough N of Emerson Mill Comment
  HSC97798  Brodiaea terrestris subsp. terrestris Thomas W. Nelson, Jane P. Nelson 2006-6-19 9442 Del Norte W side of road to Point St. George, 200 m S of Point St. George 27 Comment
  HSC48064  Bromus diandrus Thomas W. Nelson 1978-4-23 3884 Humboldt N of Samoa Comment
  HSC26275  Bromus hordeaceus Thomas W. Nelson 1971-5-31 465 Humboldt 915 Comment
  HSC40387  Bromus hordeaceus Thomas W. Nelson, James Nelson 1976-6-22 2782 Trinity Below Senteney Rock 1433 Comment
  JEPS111018  Bromus hordeaceus J. K. Nelson 2001-5-3 2001 -7 Shasta Gilman Road, McCloud River Bridge, Shasta Lake. 365 Comment
  HSC40561  Bromus inermis Thomas W. Nelson, Jane P. Nelson 1976-7-26 3020 Trinity Trinity/Humboldt Co. line, along FS Rd. 1S07 W of Black Lassic 1616 Comment
  HSC40577  Bromus orcuttianus Thomas W. Nelson, James Nelson 1976-7-28 3047 Humboldt W of Alder Springs along 2S08 1555 Comment
  CHSC105869  Cacaliopsis nardosmia J. K. Nelson; Lauren Johnson, Brad Rust, Talitha Penland Derksen 2010-6-7 2010 -022 Tehama 1.75 mi SSW of Tedoc Gap, ca 20 mi west of Red Bluff, along side Forest Road 2712. UTM N10N 4451503.011mN, 507778.364mE. 524 Comment
  HSC44136  Cacaliopsis nardosmia Thomas W. Nelson, Jane P. Nelson 1977-7-1 3570 Humboldt Along N side of ridge between Bear and Blanket Creeks 1494 Comment
  RSA273362  Cacaliopsis nardosmia Thomas W. Nelson 1976-6-10 2689 Trinity Along road 6E42. 1220 Comment
  HSC44171  Calamagrostis koelerioides Thomas W. Nelson, Jane P. Nelson 1977-7-30 3650 Trinity On ridge between the forks of Black Lassic Creek 1646 Comment
  HSC44185  Calamagrostis koelerioides Thomas W. Nelson, Jane P. Nelson 1977-9-3 3736 Humboldt Ridge NW of the pond above Alder Spring 1555 Comment
  UC700985  Calandrinia ambigua Aven and Ruth Nelson 1939-3-29 3326 Riverside near Palm Grove (at Hidden Springs at the Mecca road) Comment
  HSC32739  Calandrinia ciliata Thomas W. Nelson, Jane P. Nelson 1973-4-22 750 Mendocino Eden Valley Comment
  HSC38065  Calochortus albus Thomas W. Nelson, Jane P. Nelson 1976-5-10 2473 Butte Beside SR 191 about 4 mi. W of Paradise Comment
  HSC33065  Calochortus amabilis Thomas W. Nelson, Jane P. Nelson 1974-5-10 1253 Mendocino W side of Hwy. 101, 2 mi. N of its junction with Redwood Valley Rd. Comment
  HSC33454  Calochortus coeruleus Thomas W. Nelson, James Nelson 1974-6-17 1355 Placer Along Hwy. 80 at its junction with Blue Canyon Rd., 9 mi. W of Placer-Nevada County line Comment
  CHSC118633  Calochortus coeruleus Julie Kierstead Nelson; Martin Lenz, Rhonda Posey, Brenna Montagne 2016-6-9 2016 -020 Siskiyou Lower Parks Creek watershed, E Klamath Range, above Forest Service Road 42N19, 3 miles northwest of Stewart Springs; UTM NAD 83 Zone 10, 539249m E, 4586866m N. 1478 Comment
  HSC38106  Calochortus luteus Thomas W. Nelson, Jane P. Nelson 1976-5-9 2449 Butte Intersection of Palermo Rd. and Hwy. 70, 4 mi. S of Oroville Comment
  HSC27090  Calochortus nudus Thomas W. Nelson 1973-7-14 1075 Trinity Beside Deadfall Creek, just west of head of trail to Deadfall Lake Comment
  HSC81989  Calochortus nudus Thomas W. Nelson, Jane P. Nelson 1979-6-16 4867 Siskiyou Along SR 3, 2.2 mi. N of Scott Mtn. Summit 1341 Comment
  HSC67176  Calochortus tolmiei Thomas W. Nelson, James Nelson 1980-6-10 5427 Humboldt Along NE side of Red Mtn. 1433 Comment
  HSC67246  Calochortus tolmiei Thomas W. Nelson 1980-5-30 5351 Trinity Shasta-Trinity National Forest, along Rd. 60/Underwood Mtn. Rd., 6.6 mi. S of junction with Hwy. 299 1067 Comment
  HSC67382  Calochortus tolmiei Thomas W. Nelson 1980-5-30 5358 Trinity Along Rd. 60 (Underwood Mtn. Rd.), 10 mi. S from junction with Hwy. 299 1341 Comment
  HSC68749  Calochortus tolmiei Thomas W. Nelson, Jane P. Nelson 1980-6-18 5595 Trinity Shasta-Trinity National Forest, along FS Rd. 1N10, 1 mi. from junction with FS Rd. 2N07 1372 Comment
  UCR45374  Calochortus tolmiei Thomas W. Nelson 1977-6-15 3450 Humboldt North Coast Range, [Horse Mountain] along old road to ski area 1372 Comment
  HSC72204  Calochortus tolmiei Thomas W. Nelson, Jane P. Nelson 1980-6-26 5894 Mendocino Along Rd. 1N02, 1.5 mi. N of Monkey Rock, 13 mi. S of Grizzly Flat Station 1677 Comment
  UCD139586  Calochortus tolmiei Thomas W. Nelson; James L. Nelson 1980-6-10 5427 Humboldt along road to Red Mountain. 1371 Comment
  HSC97700  Calycadenia micrantha Thomas W. Nelson, Jane Nelson 2006-7-30 9460 Trinity 5.5 mi. from Hwy. 36, on Mad River Ridge Rd. S of Pine Butte 1265 Comment
  CAS-BOT-BC465590  Calycanthus occidentalis Julie Kierstead Nelson; Martin Lenz 2015-5-18 2015 -044 Shasta Shotgun Road, eastern Klamath Range, Sacramento River canyon W of Interstate 5; ca 8 mi S of Castle Crags 557 Comment
  HSC38956  Calyptridium monospermum Thomas W. Nelson, Jane P. Nelson 1976-5-23 2540 Trinity Branch of Shanty Creek along E side of Black Lassic 1555 Comment
  JEPS81077  Calyptridium quadripetalum Thomas W. Nelson and Jane P. Nelson 1980-6-24 5880 Colusa along trail to Snow Mountain trail head at Summit Springs, Six Rivers National Forest Summit Springs (Lake Pillsbury Quadrangle); Six Rivers National Forest, Snow Mountain trail 1584 Comment
  HSC103790  Calystegia Thomas W. Nelson, Dick Brummitt, Barbara Ertter 2004-7-3 9272 Del Norte Along Hi Low Divide Rd. (305), 2.9 mi. from junction with North Bank Rd. (State Route 197). 488 Comment
  HSC103796  Calystegia Thomas W. Nelson, Sydney Carothers 2004-5-25 9204 Del Norte South side of State Route 199, road to dorms, just west of Hiouchi; under power lines 61 Comment
  HSC103806  Calystegia Thomas W. Nelson, R. K. Brummitt, Barbara Ertter 2004-6-16 9244 Del Norte Along High-Low Divide Rd. (305), 3.1 mi. from junction of State Route 197 (North Bank Rd.) and Forest Service Rd. 17N23. 488 Comment
  HSC103800  Calystegia atriplicifolia subsp. buttensis Thomas W. Nelson, Martin Lenz 2004-6-9 9228 Shasta Branch off Founders Ferry Rd., 2.2 mi. N of junction with State Route 299. Along A-line (Forest Service Rd. 34N02), 0.5 mi. from junction with Founders Ferry Rd. 689 Comment
  HSC104390  Calystegia atriplicifolia subsp. buttensis Thomas W. Nelson, Joe Molter 2004-6-21 9260 Shasta Branch road off Pit 6 Rd. near power line, ~1 mi. W of junction with Cover Rd. 610 Comment
  HSC48190  Calystegia collina subsp. collina Thomas W. Nelson, Jane Nelson 1978-4-29 3965 Colusa Along Hwy. 20 just E of Colusa-Lake Co. line 549 Comment
  HSC32834  Calystegia collina subsp. tridactylosa Thomas W. Nelson, D. E. Anderson 1973-5-6 859 Mendocino Along Jeep-road to Roberts Lake N of Eden Valley 701 Comment
  OBI80345  Calystegia macrostegia Kristen M. Nelson 2013-2-16 21 San Luis Obispo Between Pismo Beach and Avila Beach on CA-1, between Cliff Avenue and Terrace Avenue. Along disturbed roadside. 35 Comment
  HSC96644  Calystegia occidentalis Thomas W. Nelson, Martin J. Lenz 2004-6-9 9229 Shasta Branch off Founders Ferry Rd. 2.2 mi. N of jct. with Hwy. 299, along USFS Rd. 34N02, .6 mi. from jct. with Founders Ferry Rd. 691 Comment
  HSC40007  Calystegia occidentalis subsp. occidentalis Thomas W. Nelson, Jane Nelson 1976-7-1 2903 Humboldt Along ridge N of Bear Creek 1463 Comment
  HSC81970  Calystegia occidentalis subsp. occidentalis Thomas W. Nelson, Jane Nelson 1979-6-25 4897 Tehama Along road from Tedoc Gap to Well's Creek, 0.25 mi. SE of Weston Ranch 1280 Comment
  HSC88003  Calystegia occidentalis subsp. occidentalis Thomas W. Nelson, Alan Goes 1976-5-23 2557 Mendocino Along road to Little Red Mtn. 793 Comment
  JEPS128468  Calystegia occidentalis subsp. occidentalis Julie Kierstead Nelson with Martin Lenz, Rhonda Posey, Brenna Montagne 2016-6-9 2016 -024 Siskiyou Lower Parks Creek watershed, E Klamath Range; Forest Road 42N19. 3 miles northwest of Stewart Springs. Comment
  HSC103624  Calystegia occidentalis subsp. occidentalis Thomas W. Nelson, Jane Nelson 1987-5-24 8485 Del Norte Along Road 305 (Low Divide Road), 6 mi. N of junction with North Bank Rd. 640 Comment
  HSC40013  Calystegia occidentalis subsp. occidentalis Thomas W. Nelson, Jane Nelson 1976-7-1 2914 Humboldt N side of Mt. Lassic (Signal Peak) 1738 Comment
  HSC99980  Calystegia occidentalis subsp. occidentalis Thomas W. Nelson 2005-7-16 9380 Siskiyou Along F. S. Rd. 42N16. 1337 Comment
  UC672016  Calystegia purpurata Evelyn Hart Nelson 1939-8-16 25 Santa Clara Loma Prieta Santa Cruz Mountains, Loma Prieta (between fork and spring, Santa Cruz Mountains) 975 Comment
  RSA258888  Calystegia purpurata Thomas W. Nelson, M. B. Dunkle 1974-4-22 1213 Marin Growing along the south side of Mt. Tamalpias on serpentine. Comment
  CHSC30048  Calystegia purpurata subsp. purpurata Robin Nelson 1971-4-24 23 Marin On nw bank of Coast Hwy. ca .8 mi w of Panoramic Hwy. Comment
  CDA39889  Calystegia silvatica subsp. disjuncta Thomas Nelson 1976-8-1 3166 Humboldt At the intersection of 11th and B Streets, Arcata. 0 Comment
  HSC37769  Calystegia silvatica subsp. disjuncta Thomas W. Nelson 1976-8-10 3166 Humboldt Intersection of 11th and B St. in Arcata Comment
  HSC69981  Camassia quamash subsp. linearis Thomas W. Nelson, Jane P. Nelson 1978-6-22 4296 Trinity Along Dubakella Rd., 4.8 mi. from junction with Hwy. 36 1527 Comment
  HSC26805  Camissonia contorta Thomas W. Nelson 1971-4-25 413 Trinity Adjacent to the Trinity River at Pidgeon Point Campground Comment
  HSC32743  Camissonia ovata Thomas W. Nelson, Jane P. Nelson 1973-4-22 755 Mendocino Beside Tomki Creek along Rd. between Willits and Hearst Comment
  RSA254825  Camissonia ovata Thomas W. Nelson, Jane P. Nelson 1973-4-22 755 Mendocino Beside Tomki Creek along the road from Willits to Hearst Comment
  SEINET10905896  Campanula prenanthoides Nelson 1974-7-19 NELSON 1671 Humboldt McKeown Ranch north of Dinsmore. Oak-Douglas Fir woodlands, dry NE slope. T2N R5E SECS.28,29,33,34 Comment
  RSA273405  Cardamine breweri var. orbicularis Thomas W. Nelson, J. P. Smith 1976-4-25 2382 Humboldt Humboldt County: T3N, R1N, S29, Brzil Ranch E of Hwy 101 near college of Redwoods. Comment
  HSC26340  Cardamine californica Thomas W. Nelson 1971-4-4 365 Humboldt Above the S Fork of the Van Duzen River and beside Hwy. 36 at the bridge over the Van Duzen River Comment
  HSC26794  Cardamine californica Thomas W. Nelson 1971-4-25 423 Trinity Grays Falls Campground Comment
  HSC32792  Cardamine californica Thomas W. Nelson, D. Anderson 1973-5-5 826 Mendocino Roberts Lake area of Eden Valley, N of Eden Valley Ranch Comment
  HSC33150  Cardamine californica Thomas W. Nelson, Jane Cole, Brad Klipfel 1974-5-8 1246 Humboldt Horse Mtn. area, E of microwave tower 1220 Comment
  HSC34927  Cardamine californica Thomas W. Nelson, James Nelson 1975-3-26 1763 Lake Beside Hwy. 29, N of Calistoga along St. Helena Creek, NE side of Mt. St. Helena Comment
  HSC26336  Cardamine oligosperma Thomas W. Nelson 1971-3-30 361 Humboldt Beside Williams Creek near Ferndale Comment
  UC1543082  Cardionema ramosissimum Donald G. Nelson 1935-6-27 324 Orange s. of Corona del Mar (s. of mouth of Newport Bay) Comment
  HSC37476  Carduus pycnocephalus subsp. pycnocephalus Thomas W. Nelson 1976-5-3 2386 Mendocino Along old Hwy. 101 at its junction with BLM road to Red Mtn. Comment
  HSC82088  Carduus tenuiflorus Thomas W. Nelson, Jane P. Nelson 1980-5-3 5130 Sonoma Along Roberts Rd. ca. 100 m past bridge over Copeland Creek, E of Rhonert Park 61 Comment
  HSC44018  Carex athrostachya Thomas W. Nelson, Jane P. Nelson 1977-6-19 3504 Humboldt Above Alder Springs 1585 Comment
  HSC44020  Carex athrostachya Thomas W. Nelson, Jane P. Nelson 1977-7-4 3594 Humboldt Beside pond above Alder Springs 1585 Comment
  CHSC93263  Carex bolanderi Thomas Nelson; Jane Nelson 1977-7-1 3552 Humboldt The Lassics. Along Blanket Creek. 1493 Comment
  HSC44056  Carex bolanderi Thomas W. Nelson, Jane P. Nelson 1977-7-1 3552 Humboldt Along Blanket Creek 1494 Comment
  HSC82146  Carex bolanderi Thomas W. Nelson, Jane P. Nelson 1979-6-25 4908 Tehama Along FS road from Stuart Gap to S Fork of Beegum Creek, 1 mi. from Stuart Gap 1372 Comment
  JEPS111447  Carex brainerdii Julie Kierstead Nelson 2000-4-25 2000 -009 Trinity Ramshorn Creek at Highway 3, north Trinity Lake 853 Comment
  SEINET3900272  Carex breviligulata Thomas Nelson, Ken Hindley 1978-5-28 4086 Humboldt On Mckeown Ranch north of Dinsmore.; 0 762 Comment
  HSC45435  Carex buxbaumii Thomas W. Nelson, Jane P. Nelson 1978-7-2 4397 Humboldt Along FS 2S08 near Pine Mtn. 1463 Comment
  HSC81983  Carex buxbaumii Thomas W. Nelson, Jane P. Nelson 1979-6-16 4855 Siskiyou Above Mule Creek, along Hwy. 3, 4.4 mi. N of Scott Mtn. Summit 1220 Comment
  CHSC35528  Carex concinnoides Thomas Nelson 1978-6-14 4209 Del Norte At junction of Forest Service Rd. 17N04 and road to Gordon Mountain. Comment
  SEINET3899935  Carex concinnoides Thomas Nelson 1978-6-14 4209 Del Norte At junction of Forest Service Rd. 17N04 and road to Gordon Mountain.; 0 Comment
  HSC34955  Carex densa Thomas W. Nelson 1975-5-24 1866 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC38078  Carex densa Thomas W. Nelson, James Nelson 1976-5-30 2629 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC69949  Carex densa Thomas W. Nelson, Jane P. Nelson 1978-6-21 4223 Trinity Along Trinity River flood plain, 100 m above the mouth of Indian Creek. 488 Comment
  CHSC98327  Carex dudleyi Thomas W. Nelson; Jane P. Nelson 1982-6-19 7055 Trinity North Coast Ranges. Junction Forest Service Road 1S07 and county road. Comment
  CHSC98351  Carex dudleyi Thomas W. Nelson; Jane P. Nelson 1982-6-19 7063 Trinity North Coast Ranges. Junction Forest Service Road 1S07 and county road. 701 Comment
  CHSC98360  Carex dudleyi Thomas W. Nelson; Jane P. Nelson 1982-6-19 7061 Trinity North Coast Ranges. Junction Forest Service Road 1S07 and county road. 701 Comment
  HSC81984  Carex echinata subsp. echinata Thomas W. Nelson, Jane P. Nelson 1979-6-25 4874 Tehama Along road from Tedoc Gap to Wells Creek, 0.5 mi. from Tedoc Gap 1372 Comment
  HSC82519  Carex echinata subsp. echinata Thomas W. Nelson, Jane P. Nelson 1979-5-26 4699 Trinity On flood plain of Trinity River, 100 m above mouth of Indian Creek 488 Comment
  CHSC98332  Carex feta Thomas W. Nelson; Jane P. Nelson 1982-7-11 7115 Humboldt North Coast Ranges. Along road from Hindley's cabin on McKeown's ranch to Anderson's ford at Mad River. T02N R05E S28 and 29. Comment
  HSC69998  Carex feta Thomas W. Nelson, Jane P. Nelson 1978-6-21 4219 Trinity Along Trinity River flood plain, 100 m above the mouth of Indian Creek. 488 Comment
  HSC103600  Carex fracta Thomas W. Nelson, Jane Nelson 1985-8-10 8011 Lassen Along north side of Silver Lake 1829 Comment
  HSC43476  Carex fracta Thomas W. Nelson, James Nelson 1976-7-28 3062 Trinity Along headwaters of fork of Shanty Creek, NE of Black Lassic 1524 Comment
  CHSC90265  Carex geyeri Thomas W. Nelson; Jane P. Nelson 1987-6-11 8558 Del Norte North Coast Ranges. Along branch road to Onion Lake ca. 100 yrds. from lake. 1097 Comment
  CHSC90281  Carex gynodynama Thomas W. Nelson; Jane P. Nelson 1987-5-25 8510 Del Norte North Coast Ranges. Along State Route 101 ca. 4 miles north of Crescent City at KOA campground. 60 Comment
  CHSC98314  Carex hassei Thomas W. Nelson; Jane P. Nelson 1983-7-29 7525 Trinity North Coast Ranges. In and around Scott Mountain Campground. 1645 Comment
  HSC82289  Carex hassei Thomas W. Nelson, Jane P. Nelson 1979-6-15 4821 Trinity Trinity-Siskiyou County line, head of Scott Mtn. Creek at Scott Mtn. Campground. 1646 Comment
  SEINET3901638  Carex hendersonii Thomas Nelson 1978-6-10 4416 Humboldt Eureka Quad. Behind Eureka Seventh Day Advent Church on F St.; 0 61 Comment
  JEPS123440  Carex heteroneura Julie Kierstead Nelson with Marie Buell 2015-7-18 2015 -113 Trinity Yolla Bolly Wilderness; near Tehama County line; 0.3 miles W of North Yolla Bolly; headwaters of the east fork of the south fork of Trinity River. Comment
  CHSC118613  Carex heteroneura Julie Kierstead Nelson; Marie Buell 2015-7-18 2015 -113 Trinity Yolla Bolly Wilderness; near Tehama County line; 0.3 miles W of North Yolla Bolly; headwaters of the east fork of the south fork of Trinity River. UTM NAD 83 Zone 10, 501873m E, 4449333m N. 2215 Comment
  CHSC90268  Carex hoodii Thomas W. Nelson; Jane P. Nelson 1987-6-11 8542 Humboldt North Coast Ranges. Along Forest Road 13N01 18 miles from junction with State Route 96. 1066 Comment
  CHSC98373  Carex hoodii Thomas W. Nelson; Jane P. Nelson 1984-6-17 7642 Shasta North Coast Ranges. Along Middle Fork Cottonwood Creek at Basin Gulch Campground. Comment
  HSC81913  Carex hoodii Thomas W. Nelson, Jane P. Nelson 1979-7-7 4982 Trinity Along Davis Creek, W side of Hwy. 3 793 Comment
  HSC44033  Carex hoodii Thomas W. Nelson, James Nelson 1976-6-10 2666 Trinity Adjacent to Senteney Rock 1524 Comment
  HSC44034  Carex hoodii Thomas W. Nelson, Jane P. Nelson 1976-6-22 2853 Trinity Trinity-Humboldt County line, spring along road to Goat Hill 1646 Comment
  CHSC90279  Carex jonesii Thomas W. Nelson; Jane P. Nelson 1987-6-11 8599 Humboldt North Coast Ranges. Box Spring at Box Camp. Along trail to North Trinity Mountain. 1524 Comment
  HSC103361  Carex jonesii Thomas W. Nelson, Jane Nelson 1987-6-11 8597 Humboldt At trailhead and along trail to Grogans Hole 610 Comment
  SEINET10710064  Carex kelloggii Thomas W. Nelson, Jane P. Nelson 1979-6-25 Nelson 4920 Tehama Yolla Booly Quad. T27N, R10W, S2. Bog in white fir forest along Forest Rd. 35 ca 1.9 miles form Stuart Gap. Comment
  CHSC90274  Carex lenticularis var. impressa Thomas W. Nelson; Jane P. Nelson 1987-6-11 8598 Humboldt North Coast Ranges. Box Spring at Box Camp. Along trail to North Trinity Mountain. 1524 Comment
  CHSC93261  Carex lenticularis var. lipocarpa Thomas W. Nelson; Jane P. Nelson 1987-6-27 8611 Del Norte North Coast Ranges. At Onion Lake. 1097 Comment
  HSC103673  Carex lenticularis var. lipocarpa Thomas W. Nelson, Jane Nelson 1985-8-10 8023 Lassen Margin of pond along south side of lava flow on west side of Silver Lake 1829 Comment
  CHSC90277  Carex leptopoda Thomas W. Nelson; Jane P. Nelson 1987-5-25 8512 Del Norte North Coast Ranges. Along State Route 101 ca. 4 miles north of Crescent City at KOA campground. 60 Comment
  CHSC93270  Carex luzulina Thomas Nelson; Jane Nelson 1977-6-22 2862 Trinity The Lassics. In the spring along road to Goat Hill. Trinity-Humboldt Co. line. 1645 Comment
  HSC82165  Carex luzulina Thomas W. Nelson, Jane Nelson 1979-6-25 4919 Tehama Along FS Rd. 35, 1.9 mi. from Stuart Gap Comment
  HSC71214  Carex lyngbyei Thomas W. Nelson, Doris K. Niles 1979-5-19 4695 Humboldt Tidal marsh at mouth of Eel River, Crab Park, N of County Park. Comment
  HSC82468  Carex mariposana Thomas W. Nelson, Jane P. Nelson 1979-6-14 4783 Trinity W side of Hwy. 3, across Trinity River from mouth of Bear Creek 915 Comment
  CHSC98670  Carex mendocinensis Thomas W. Nelson; Jane P. Nelson 1987-5-24 8504 Del Norte North Coast Ranges. Along Road 305 (Low Divide Road) .3 miles from junction with Road 308 (Smith River Road). 609 Comment
  HSC48070  Carex mendocinensis Thomas W. Nelson, Jennifer Whipple 1978-4-27 3908 Del Norte Flat above junction of North and Middle Forks of Smith River, across river from Gasquet. Comment
  HSC69730  Carex mendocinensis Thomas W. Nelson 1978-6-14 4177 Del Norte Along French Hill Rd., 4 mi. from junction with State Route 199 Comment
  HSC45437  Carex microptera Thomas W. Nelson, Jane P. Nelson 1978-7-2 4401 Humboldt Off FS 2S08 near Pine Mtn., road to Lost Lake 1463 Comment
  HSC82310  Carex multicaulis Thomas W. Nelson, Jane P. Nelson 1979-6-15 4838 Trinity Mouth of Bear Creek 915 Comment
  HSC38290  Carex multicaulis Thomas W. Nelson 1976-6-10 2691 Trinity Along FS 6E42 1220 Comment
  HSC44075  Carex multicostata Thomas W. Nelson, Jane P. Nelson 1977-7-1 2932 Humboldt W of Mount Lassic (Signal Peak) 1677 Comment
  CHSC98338  Carex nebrascensis Thomas W. Nelson; Jane P. Nelson 1982-7-30 7321 Siskiyou North Coast Ranges. Along Forest Service road 41N08 to Kangaroo Lake at bridge over Rock Fence Creek. 1584 Comment
  HSC103614  Carex nebrascensis Thomas W. Nelson, Jane Nelson 1985-8-10 8005 Lassen Along north side of Silver Lake 1829 Comment
  HSC37864  Carex nudata Thomas W. Nelson, J. P. Smith, Jane P. Nelson, James Nelson 1976-4-12 2309 Lake Along Morgan Valley Rd., 7.8 mi. from Lower Lake 640 Comment
  HSC70166  Carex ovalis Thomas W. Nelson 1978-6-10 4418 Humboldt Behind the Seventh-Day Adventist Church on F St., Eureka Comment
  HSC45474  Carex pachystachya Thomas W. Nelson, Jane P. Nelson 1978-7-2 4409 Humboldt Along road to Lost Lake, branch off FS 2S08 near Pine Mtn. 1433 Comment
  CAS-BOT-BC118944  Carex pellita T. W. Nelson; J. P. Nelson 1979-5-26 4698 Trinity Weaverville Quad. On flood plain of Trinity River 100m above mouth of Indian Creek. 487 Comment
  HSC103516  Carex saliniformis Thomas W. Nelson, Jane Nelson 1981-4-12 6368 Mendocino About .5 mi. S of Manchester. 76 Comment
  HSC103347  Carex scabriuscula Thomas W. Nelson, Jane Nelson 1987-5-24 8501 Del Norte Along Road 305 (Low Divide Road), 7.7 mi. N of junction with North Bank Road 671 Comment
  HSC81801  Carex scabriuscula Thomas W. Nelson, Jane P. Nelson 1980-7-17 6123 Trinity Along FS Rd. 17 at summit at county line 2073 Comment
  HSC103349  Carex scabriuscula Thomas W. Nelson, Jane Nelson 1982-7-16 7232 Siskiyou Along west side of Forest Service Rd. 42N17, at summit above Deadfall Meadow, near crossing of Pacific Crest Trail. (Siskiyou-Trinity county line) 2073 Comment
  HSC103370  Carex serratodens Thomas W. Nelson, Jane Nelson 1977-9-3 3734 Humboldt Along old logging road, just east of Pine Mountain, off Forest Service Road 2S08 1463 Comment
  RSA313440  Carex serratodens Thomas W. Nelson, Jane P. Nelson 1978-7-2 4404 Humboldt In spring on disturbed site along road 2S08 near Pine Mountain, road to Lost Lake. 1463 Comment
  HSC40180  Carex spectabilis Thomas W. Nelson, Jane P. Nelson 1976-8-1 3135 Shasta Lassen Volcanic National Park, Kings Creek Meadow Comment
  HSC69950  Carex stipata Thomas W. Nelson, Jane P. Nelson 1978-6-21 4224 Trinity Along Trinity River flood plain, 100 m above the mouth of Indian Creek. 488 Comment
  HSC81914  Carex stipata Thomas W. Nelson, Jane P. Nelson 1979-7-7 4981 Trinity Along Davis Creek, W side of Hwy. 3 793 Comment
  SEINET10748081  Carex stipata Thomas W. Nelson, Jane P. Nelson 1979-5-26 Nelson 4700 Trinity Weaverville Quad. T32N, R9W, Sec. 5. Growing on wet alluvial soil on flood plain of Trinity River 100 m above mouth of Indian Creek. 488 Comment
  CAS-BOT-BC421423  Carex subfusca Julie K. Nelson; Kristen Kaczynski 2001-9-13 2001 -038 Trinity Shasta-Trinity National Forest, Western Azalea Special Interest Area, adjacent to Bramlet Road, County Road 29, south of Hwy. 36. 1120 Comment
  CHSC98568  Carex subfusca Thomas W. Nelson; Jane P. Nelson 1986-5-24 8077 Trinity North Coast Ranges. In wet, alluvial soils beside Trinity River ca. 100 yds. upstream from mouth of Indian Creek. 504 Comment
  HSC44077  Carex subfusca Thomas W. Nelson 1976-7-9 2974 Trinity Foot of Red Lassic 1707 Comment
  SEINET3910196  Carex tracyi Thomas W. Nelson, Jane P. Nelson 1978-6-10 4418 Humboldt Eureka Quad. Second growth redwood forest behind Eureka Seventh Day Advent Church on F St.; 0 61 Comment
  HSC103651  Carex utriculata Thomas W. Nelson, Jane Nelson 1985-8-10 8009 Lassen Along north side of Silver Lake 1829 Comment
  CAS-BOT-BC422326  Carex vesicaria Julie Kierstead Nelson; Martin Lenz; Rhonda Posey 2014-8-13 2014 -076 Siskiyou Lower Parks Creek Lake near outlet, northeast side. 1 mile NE of China Mountain, easten Klamath Ranges. 2200 Comment
  HSC103627  Carex vesicaria Thomas W. Nelson, Jane Nelson 1980-8-22 6292 Trinity Eleanor Lake 1555 Comment
  HSC103632  Carex vesicaria Thomas W. Nelson, Jane Nelson 1985-8-10 8027 Lassen Silver Lake, along north side of arm on east side of lake. 1829 Comment
  HSC82557  Castilleja affinis Thomas W. Nelson, Jane P. Nelson 1979-5-26 4711 Siskiyou Along Hwy. 3, N of Scott Mtn. Summit, at junction with FS Rd. 40N03 1524 Comment
  JEPS81046  Castilleja affinis subsp. affinis Thomas W. Nelson and Jane P. Nelson 1979-4-11 4612 Colusa 5 mi e Leesville (along the Leesville to State Route 20 cutoff) Comment
  HSC99979  Castilleja affinis subsp. affinis Thomas W. Nelson, & Sydney Carothers 2005-7-17 9387 Siskiyou Etna Summit along Etna-Forks of the Salmon Rd.. 1804 Comment
  HSC70448  Castilleja ambigua subsp. humboldtiensis Thomas W. Nelson, Doris K. Niles 1979-5-19 4694 Humboldt Tidal marsh at mouth of Eel River, Crab Park, N of County Park. Comment
  HSC35744  Castilleja applegatei subsp. pinetorum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-20 1980 Trinity Near S end of road out Swayback Ridge Comment
  HSC67287  Castilleja applegatei subsp. pinetorum Thomas W. Nelson, Jane P. Nelson 1980-6-17 5500 Trinity Shasta-Trinity National Forest, along Salt Creek Rd. at junction with FS Rd. 30N24 945 Comment
  HSC68671  Castilleja applegatei subsp. pinetorum Thomas W. Nelson, Jane P. Nelson 1980-6-17 5533 Trinity Shasta-Trinity National Forest, along FS Rd. 1N12, 1.1 mi. from junction with FS Rd. 2N07 1006 Comment
  HSC70063  Castilleja applegatei subsp. pinetorum Thomas W. Nelson 1978-6-23 4366 Trinity N of Red Mtn. along road from Red Mtn. to Hell to Find Lake 1616 Comment
  HSC70110  Castilleja applegatei subsp. pinetorum Thomas W. Nelson, Jane P. Nelson 1978-6-23 4340 Trinity Along road to Hell to Find Lake. Comment
  HSC71862  Castilleja applegatei subsp. pinetorum Thomas W. Nelson, Jane P. Nelson 1980-6-22 5787 Tehama Along road to Wells Creek Campground, 1 mi. SE of Tedoc Gap 1311 Comment
  HSC81524  Castilleja applegatei subsp. pinetorum Thomas W. Nelson, Jane P. Nelson 1980-7-17 6112 Trinity Along FS Rd. 17 at summit at county line 2073 Comment
  HSC82136  Castilleja applegatei subsp. pinetorum Thomas W. Nelson, Jane P. Nelson 1979-6-25 4934 Tehama Along F.S. Rd. 45 at mile post 11, W slope of Mt. Tedoc 1372 Comment
  HSC82624  Castilleja applegatei subsp. pinetorum Thomas W. Nelson 1979-5-13 4661 Trinity Along road from S.R. 3 to Deerlick Springs ca. 2 mi. S of Blanchard Flats 640 Comment
  HSC97685  Castilleja applegatei subsp. pinetorum Thomas W. Nelson, Jane Nelson 2006-7-1 9453 Siskiyou Along USFS Rd. 4319, Military Pass Rd., The Whaleback 1392 Comment
  JEPS128431  Castilleja applegatei subsp. pinetorum Julie Kierstead Nelson with Len Lindstrand III 2015-4-22 2015 -020 Shasta Summit of Tombstone Mountain, eastern Klamath Range, east of I-5. Comment
  SEINET11262570  Castilleja applegatei var. fragilis Thomas W. Nelson, Jane P. Nelson 1980-6-22 5745 Trinity Dubakella Quad. Along road 29N28, 7 miles south of junction with State Route 36 and 1 mile from Goat Camp.; 0 1372 Comment
  HSC103848  Castilleja arachnoidea Thomas W. Nelson, Shauna Hee 2006-8-4 9475 Trinity Hwy. 299, 100 m SE of bridge over Stuart Fork of Trinity River 730 Comment
  HSC82541  Castilleja arachnoidea Thomas W. Nelson 1979-7-11 5000 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC97800  Castilleja arachnoidea Thomas W. Nelson, Shauna Hee 2006-8-4 9475 Siskiyou Scott Mtn. Pass, along ridge between Carmen Lake, Hwy. 3, ridge S of junction of FS Rds. 40N08 and 44N44 1671 Comment
  UC1607987  Castilleja exserta subsp. exserta Donald G. Nelson 1935-3-23 185 Orange hills n Fullerton Comment
  HSC30753  Castilleja foliolosa Thomas W. Nelson 1974-4-21 1209 Marin Along the S side of Mt. Tamalpias Comment
  HSC70038  Castilleja hispida subsp. brevilobata Thomas W. Nelson 1978-6-14 4206 Del Norte Along French Hill Rd. 8.7 mi. from junction with Hwy. 199 Comment
  HSC92180  Castilleja mendocinensis Thomas W. Nelson, Jane P. Nelson 1995-4-19 9042 Mendocino On coastal headlands just N of mouth of Pudding Creek 30 Comment
  CAS-BOT-BC244883  Castilleja miniata Thomas W. Nelson; Jane P. Nelson 1979-7-11 5032 Humboldt Along trail from Grogan's Hole to North Trinity Mountain from Grogan's Hole to summit Comment
  HSC82214  Castilleja pilosa Thomas W. Nelson, Jane P. Nelson 1980-7-6 5995 Lassen Along Adin-Madelin Rd., 16 mi. E of Adin in Ash Valley 1555 Comment
  HSC30730  Castilleja pruinosa Thomas W. Nelson, James Nelson 1974-6-17 1365 Placer Beside Hwy. 80 at its intersection with Blue Canyon Rd., 9 mi. W of the Placer/Nevada Co. line Comment
  HSC35593  Castilleja pruinosa Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2004 Humboldt French Camp, Bald Hills. Comment
  HSC96634  Castilleja pruinosa Thomas W. Nelson, Sydney Carothers 2004-4-24 9188 Del Norte Along Rd. 305 3 mi. N of Jct. with F.S. Rd. 17N49 Comment
  HSC32877  Castilleja rubicundula subsp. lithospermoides Thomas W. Nelson, D. Anderson 1973-5-6 908 Mendocino S of Eden Valley Ranch beside rd. to ranch 640 Comment
  HSC68756  Castilleja rubicundula subsp. lithospermoides Thomas W. Nelson, Jane P. Nelson 1980-6-18 5602 Trinity Shasta-Trinity National Forest, along FS Rd. 1N10, 1 mi. from junction with FS Rd. 2N07 1372 Comment
  HSC30754  Castilleja subinclusa subsp. franciscana Thomas W. Nelson 1974-4-22 1201 Marin Lake Nicascio Comment
  UC1618077  Castilleja wightii Donald G. Nelson 1939-6-14 624 San Mateo 3 mi s San Francisco Co. line (Skyline Blvd, due e of Mussel Rock on the coast) Comment
  HSC26789  Castilleja wightii Thomas W. Nelson 1971-3-21 352 Mendocino Beside Hwy. 1 Comment
  UC1925887  Ceanothus Donald G. Nelson 1935-7-9 222 Orange San Juan Canyon. Comment
  HSC40666  Ceanothus cordulatus Thomas W. Nelson, Jane P. Nelson 1976-7-1 2933 Humboldt Along 5E27 at its junction with 1S07 1555 Comment
  HSC40884  Ceanothus cordulatus Thomas W. Nelson, Jane P. Nelson 1976-6-22 2869 Humboldt On SW-facing slope at Goat Mtn. lookout 1666 Comment
  HSC69943  Ceanothus cordulatus Thomas W. Nelson, Jane P. Nelson 1977-6-19 3483 Trinity Along USFS rd. just N of Watts lake 1463 Comment
  JEPS128825  Ceanothus cuneatus Julie Kierstead Nelson with Martin Lenz 2017-5-5 2015 -004 Shasta Upper Sacramento River watershed, west of I-5, west of Gibson, eastern Klamath Ranges. Along Highland Lakes Road, 38N21. Comment
  UC1618103  Ceanothus cuneatus Donald G. Nelson 1940-4-30 666 Lake between Kelseyville and Middletown (summit of the grade, just above Loch Lomond) Comment
  UC672052  Ceanothus dentatus Evelyn Hart Nelson 1939-8-16 28 Santa Clara between fork and spring. 975 Comment
  HSC38357  Ceanothus foliosus var. foliosus Thomas W. Nelson, Alan Goes 1976-5-4 2407 Mendocino At junction of Cat Track and BLM road to Red Mountain 732 Comment
  UC1193323  Ceanothus gloriosus var. gloriosus R. E. Nelson 1949-12-14 137 Mendocino 2 miles east of Iverson Point. 167 Comment
  JEPS81090  Ceanothus incanus Thomas Nelson 1978-5-17 4041 Mendocino along B.L.M. road to Red Mountain; road to Red Mountain Comment
  HSC26725  Ceanothus integerrimus Thomas W. Nelson 1970-10-11 236 Mendocino Beside Hwy. 101 42.8 mi N of Mendocino-Sonoma Co. line Comment
  HSC40027  Ceanothus integerrimus Thomas W. Nelson, Jane P. Nelson 1976-6-22 2873 Humboldt At Goat Hill Lookout 1666 Comment
  HSC41153  Ceanothus integerrimus Thomas W. Nelson, Jane P. Nelson 1976-8-2 3102 Shasta Along N side of Hwy. 44. 7.2 mi. E of Shingletown. Comment
  CHSC35515  Ceanothus integerrimus var. californicus Thomas Nelson 1978-5-17 4040 Mendocino Dry hillside along B.L.M. road to Red Mountain. Comment
  RSA293168  Ceanothus integerrimus var. californicus Thomas W. Nelson 1978-5-17 4040 Mendocino along BLM road to Red Mtn. area Comment
  HSC82488  Ceanothus lemmonii Thomas W. Nelson, Jane P. Nelson 1979-5-26 4749 Trinity SR 3 at junction with rd. to Minersville and Bushy Trail Campground Comment
  RSA652914  Ceanothus leucodermis Beth Nelson 1991-4-20 9 San Bernardino North of Rancho Cucamonga. 10 fry. E. Exit Haven Av. left, to Highland Av. left. to Etiwanda Av. Take dirt road .8 miles N. Comment
  GH349961  Ceanothus oliganthus var. orcuttii A. Nelson & R. A. Nelson 1939-3-27 3280 Unknown hiway (no. 99) Banner grade, near Julian Comment
  UC672045  Ceanothus oliganthus var. sorediatus Evelyn Hart Nelson 1939-10-22 50 Santa Clara Loma Prieta Santa Cruz Mountains, Loma Prieta 975 Comment
  UC672051  Ceanothus oliganthus var. sorediatus Evelyn Hart Nelson 1940-4-20 Santa Clara Loma Prieta Santa Cruz Mountains 975 Comment
  UC672047  Ceanothus papillosus var. papillosus Evelyn Hart Nelson 1940-4-20 40 a Santa Clara Loma Prieta, Santa Cruz Mountains 975 Comment
  CAS-BOT-BC63447  Ceanothus perplexans Aven Nelson; Ruth Nelson 1939-3-27 3281 San Diego On the Banner Grade, Hwy. 99, not far from Julian. Comment
  UC1094482  Ceanothus pumilus R. E. Nelson 1955-5-14 162 Humboldt about 5 mi w Miranda; Quad. 29-C-2, w of Miranda 762 Comment
  UC1543130  Centaurea calcitrapa Donald G. Nelson 1940-8-7 699 Napa Highway from Napa to Wooden Valley Napa (n slope of George Mountain, along Sarco Creek); George Mountain, Sarco Creek 152 Comment
  HSC40218  Centaurea solstitialis Thomas W. Nelson, Jane P. Nelson 1976-8-1 3156 Trinity along Hwy. 299 W of Junction City Comment
  HSC97335  Centaurium venustum Thomas W. Nelson, Jane Nelson 2006-6-23 9420 Tuolumne 0.5 mi. from Red Hills Rd., Chinese Camp Comment
  HSC45236  Cephalanthera austiniae Thomas W. Nelson, Jane P. Nelson 1977-7-1 3557 Humboldt N side of ridge between Bear Creek & Blanket Creek 1463 Comment
  SD129661  Cercocarpus betuloides Donald G. Nelson 1940-4-30 672 Lake About 1 mile below Seigler Hot Springs along creek. Comment
  UCR63401  Cercocarpus betuloides Donald G. Nelson 1940-4-30 672 Lake About 1 mi below Seigler Hot Springs along Creek Comment
  CAS-BOT-BC136992  Cercocarpus betuloides var. betuloides J. K. Nelson 2004-3-12 2004 -009 Shasta Forest Road 33N041 to Digger Bay from Shasta Dam Boulevard, south side of Shasta Lake; ca 8 miles N of Redding, 2 miles W of Shasta Dam 365 Comment
  UC1543247  Cercocarpus betuloides var. betuloides Donald G. Nelson 1940-4-30 663 Lake s of Clear Lake (between Middletown and Kelseyville, Loch Lomond,); Cobb Mountain Comment
  HSC35903  Cercocarpus montanus var. glaber Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-8-16 2155 Santa Barbara Beside Hwy. 101 just S of Los Alamos Comment
  CAS-BOT-BC276945  Chaenactis fremontii Aven Nelson; Ruth A. Nelson 1939-4-2 3382 San Bernardino Between Silurian Lake and Shoshone, State Highway 127 Comment
  HSC67253  Chaenactis glabriuscula var. heterocarpha Thomas W. Nelson, Jane P. Nelson 1980-6-17 5520 Trinity Shasta-Trinity National Forest, across Salt Creek from Salt Creek Campground 915 Comment
  HSC81993  Chaenactis glabriuscula var. heterocarpha Thomas W. Nelson, Jane P. Nelson 1980-5-3 5158 Napa Junction of Butts Canyon Rd. & Snell Valley Rd. 197 Comment
  HSC96661  Chaenactis glabriuscula var. heterocarpha Thomas W. Nelson 2004-5-6 9203 Lake Along Highland Springs Rd. 4.5 miles from junction with SR 29/175 Comment
  UC1543179  Chaenactis parishii Donald G. Nelson 1936-5-22 386 Riverside Ribbon Wood Camp Santa Rosa Mtns., Palm Springs Canyon (Pines to Palms Highway, on trail down to stream in Palm Springs Canyon, near base of Santa Rosa Mtns.) Comment
  HSC96633  Chaenactis suffrutescens Thomas W. Nelson, Jane P. Nelson 2003-6-16 9146 Trinity Along Bramlet Rd. (Road 7) 0.5 mi. from jct. with road 29N59 1340 Comment
  CAS-BOT-BC279785  Chamaemelum fuscatum Thomas Nelson; James Nelson 1975-3-25 1751 Sonoma Asti Comment
  HSC32532  Chamaesyce serpyllifolia Thomas W. Nelson 1973-9-3 1130 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC36614  Cheilanthes gracillima Thomas W. Nelson 1973-5-30 1001 Trinity Red Lassic area 1799 Comment
  HSC82123  Cheilanthes gracillima Thomas W. Nelson 1979-7-11 4997 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC44043  Cheilanthes gracillima Thomas W. Nelson, Jane Nelson 1977-7-30 3646 Trinity Along ridge between the forks of Black Lassic Cr. 1646 Comment
  UC1543088  Cheilanthes newberryi Donald G. Nelson 1935-4-6 236 Orange e San Juan Capistrano (and just s of boundary of Cleveland Nat'l Forest, <canyon> branching northward from summer ranger station on main hwy); San Juan Canyon Comment
  UC1543076  Chenopodium Donald G. Nelson 1936-5-29 428 Orange S. Grand Ave. s Buena Park; Bob Barnes Ranch Comment
  HSC25383  Chenopodium album Thomas W. Nelson 1972-10-25 702 Humboldt Eureka, waste area of Harris and B St. Comment
  HSC32505  Chenopodium californicum Thomas W. Nelson, Jane Nelson 1974-4-8 1144 Lake 200 m E of Oasis Resort, 13 mi. E of Clear Lake Oaks along Hwy. 20 Comment
  HSC97678  Chimaphila menziesii Thomas W. Nelson, Jane P. Nelson 1988-6-29 8709 Del Norte Along French Hill Rd., 4 mi. from junction with State Route 199 549 Comment
  HSC45428  Chimaphila menziesii Thomas W. Nelson, Jane Nelson 1977-6-19 3501 Humboldt Along ridge N of pond above Alder Springs 1585 Comment
  HSC71153  Chimaphila umbellata Thomas W. Nelson, Jane Nelson, J. P. Smith 1978-7-23 4467 Shasta Along road to Bully Choop 12 mi. from junction with County Rd. A16 Comment
  HSC45410  Chimaphila umbellata Thomas W. Nelson, Jane Nelson 1977-7-1 3567 Humboldt 1494 Comment
  HSC45422  Chimaphila umbellata Thomas W. Nelson, Jane Nelson 1977-8-6 3688 Trinity Along Mule Ridge Comment
  UC1618023  Chorizanthe Donald G. Nelson 1935-4-6 250 Orange e. San Juan Capistrano (and just s. of boundary of Cleveland Nat'l Forest) Comment
  CAS-BOT-BC179034  Chorizanthe brevicornu var. brevicornu Aven Nelson; Ruth Nelson 1939-3-24 3244 San Diego in Palm Canyon. Borego Desert State Park Comment
  HSC37869  Chorizanthe polygonoides var. polygonoides Thomas W. Nelson, J. P. Smith, Jane P. Nelson, James Nelson 1976-4-12 2314 Lake Beside Morgan Valley Rd., 7.8 mi. from Lower Lake 640 Comment
  UC700972  Chylismia brevipes subsp. brevipes Aven and Ruth Nelson 1939-3-29 3329 Riverside near Hidden Springs Canyon Comment
  RSA0070845  Cirsium andersonii Thomas W. Nelson, Jane P. Nelson, J. P. Smith 1978-7-24 4545 Siskiyou Along State Route 3, just N of Scott Mountain Summit. 1585 Comment
  HSC44124  Cirsium arvense Thomas W. Nelson, Jane P. Nelson 1977-7-30 3684 Trinity Along old logging road E of Black Lassic 1463 Comment
  HSC70101  Cirsium cymosum Thomas W. Nelson, Jane P. Nelson 1978-6-22 4282 Trinity Along Dubakella Rd., 2.3 mi. from junction with Hwy. 36, intersection of FS 29N31 and FS 29N55 1402 Comment
  HSC81847  Cirsium cymosum Thomas W. Nelson, Jane P. Nelson 1980-7-17 6089 Siskiyou Along FS Rd. 17, 1 mi. N of summit at county line 2073 Comment
  HSC82294  Cirsium cymosum Thomas W. Nelson, Jane P. Nelson 1979-6-15 4830 Trinity Mouth of Bear Creek 915 Comment
  HSC88785  Cirsium cymosum Thomas W. Nelson, Jane P. Nelson 1980-6-19 5646 Trinity Along Rd. 29N58, Rattlesnake Ridge, at junction with Rd. 29N67 1341 Comment
  SEINET11263070  Cirsium douglasii var. canescens Thomas Nelson 1976-7-9 2987 Humboldt Beside 1S07 just west of summit.; 0 1585 Comment
  HSC41136  Cirsium occidentale var. candidissimum Thomas W. Nelson, Jane P. Nelson 1976-8-2 3085 Trinity Above Hwy. 299 just W of Junction City Comment
  HSC35706  Cirsium occidentale var. venustum Thomas W. Nelson, B. Reinhardt 1975-7-30 2122 Humboldt Beside private road to Pilot Rock Comment
  CAS-BOT-BC438665  Cistanthe ambigua Aven Nelson; Ruth Nelson 1939-3-29 3326 Riverside Near the Palm grove, at Hidden Springs, on the Mecca road Comment
  HSC48147  Clarkia amoena subsp. amoena Thomas W. Nelson, Jane P. Nelson 1978-8-22 4560 Mendocino Along Hwy. 1, 100 m S of Point Arena Comment
  HSC8649  Clarkia amoena subsp. huntiana Thomas W. Nelson, James Nelson 1975-9-3 2191 Humboldt Along N side of Ashfield Butte Comment
  HSC97345  Clarkia biloba Thomas W. Nelson, Jane Nelson 2006-6-23 9425 Tuolumne 1 mile NE of Chinese House, Red Hills. 348 Comment
  CHSC110656  Clarkia borealis subsp. borealis Julie Kierstead Nelson; Talitha Penland Derksen 2011-7-7 2011 -34 Shasta West side of Shasta Lake, along Forest Road 12 between Friday Louden Mine and Squaw Creek, 2 miles NW of Shasta Dam. Comment
  HSC81860  Clarkia concinna Thomas W. Nelson, Jane Nelson 1980-5-3 5156 Napa Junction of Butts Canyon Rd. & Snell Valley Rd. 197 Comment
  HSC35011  Clarkia davyi Thomas W. Nelson 1974-9-15 1715 Humboldt W of Fairhaven, Samoa Peninsula Comment
  HSC68806  Clarkia gracilis Thomas W. Nelson, Jane P. Nelson 1980-6-18 5588 Trinity Shasta-Trinity National Forest, along FS Rd. 1N10, 1 mi. from junction with FS Rd. 2N07 1372 Comment
  HSC38004  Clarkia gracilis Thomas W. Nelson, Alan Goes 1976-5-23 2558 Mendocino Beside road to Little Red Mtn. 793 Comment
  HSC67368  Clarkia gracilis Thomas W. Nelson 1980-5-30 5381 Trinity Along Rd. 60 (Underwood Mtn. Rd.) .5 mi. S of jct. with Rd. 4N34 (Eltapom Rd.) 823 Comment
  HSC82092  Clarkia gracilis subsp. gracilis Thomas W. Nelson, Jane P. Nelson 1980-5-25 5298 Trinity Along trail from Blue Jay Mine-Little Red Mtn. Creek 1189 Comment
  HSC82082  Clarkia purpurea subsp. quadrivulnera Thomas W. Nelson, Jane P. Nelson 1980-5-3 5135 Napa Along St. Helena-Pope Valley Rd., 1 mi. W of Angwin Comment
  HSC103450  Clarkia purpurea subsp. viminea Thomas W. Nelson 2005-6-10 9361 Trinity Along Friday Ridge Road, 7 mi. from jct. with Hwy. 299, at jct. with Forest Service Rd. 6N33. 320 Comment
  HSC70014  Clarkia rhomboidea Thomas W. Nelson, Jane P. Nelson 1978-7-21 4438 Tehama Along Tedoc Rd., 5 mi. from Jct. with Hwy. 36 Comment
  HSC35636  Clarkia unguiculata Thomas W. Nelson, James Nelson, Jane P. Nelson 1975-8-16 2151 Santa Barbara Beside Hwy. 101 just S of Los Alamos Comment
  CHSC35537  Claytonia exigua subsp. exigua Thomas W. Nelson; Jane P. Nelson 1980-5-7 5192 Trinity Shasta-Trinity National Forest. Along road 29N58, rattlesnake Ridge, at juction with road 30N29. 1341 Comment
  HSC32462  Claytonia exigua subsp. exigua Thomas W. Nelson, D. E. Anderson 1973-5-5 879 Mendocino N of Eden Valley Ranch overlooking Eden Creek along jeep road to Roberts Lake. 640 Comment
  HSC67184  Claytonia exigua subsp. exigua Thomas W. Nelson, James Nelson 1980-6-10 5435 Humboldt Along E side of Red Mtn. 1372 Comment
  HSC67189  Claytonia exigua subsp. exigua Thomas W. Nelson, James Nelson 1980-6-10 5425 Humboldt Along NE side of Red Mtn. 1433 Comment
  HSC82345  Claytonia exigua subsp. exigua Thomas W. Nelson, J. O. Sawyer 1977-5-1 3375 Mendocino Along Mail Ridge Rd., 10 mi. N of junction with Hwy. 101 Comment
  HSC37889  Claytonia exigua subsp. exigua Thomas W. Nelson, Jane P. Nelson, James Nelson, J. P. Smith 1976-4-11 2290 Mendocino Beside road to Little Red Mtn. Comment
  RSA293076  Claytonia exigua subsp. exigua Thomas W. Nelson, Jane P. Nelson 1980-5-7 5192 Trinity Along road 29N58, Rattlesnake Ridge, at junction with road 30N29. 1341 Comment
  HSC28195  Claytonia gypsophiloides Thomas W. Nelson 1971-3-23 351 Mendocino Beside Pieta Creek bridge, Hwy. 101 Comment
  HSC32862  Claytonia lanceolata Thomas W. Nelson, James Nelson 1973-5-20 914 Trinity Red Lassic 1799 Comment
  HSC32904  Claytonia lanceolata Thomas W. Nelson 1973-5-30 992 Trinity Along Mule Ridge SE of Red Lassic Comment
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Sep 23 2019
  HSC45416  Claytonia parviflora subsp. parviflora Thomas W. Nelson, Jane P. Nelson 1977-6-19 3531 Trinity Above Senteney Rock. 1555 Comment
  HSC69809  Claytonia parviflora subsp. parviflora Thomas W. Nelson 1978-5-26 3814 Trinity NW facing slope along Hwy. 3, just S of Peanut 793 Comment
  CAS-BOT-BC439557  Claytonia parviflora subsp. parviflora Aven Nelson; Ruth A. Nelson 1933-5-8 544 San Bernardino West of Bakersfield Comment
  SEINET9321581  Claytonia perfoliata John Nelson, Wnek, R. 2000-3-7 20938 Sonoma Fern Grove Cottages Comment
  UC671917  Claytonia rubra subsp. rubra Evelyn Hart Nelson 1940-4-20 92 Santa Clara Loma Prieta; Santa Cruz Mountains 1098 Comment
  CAS-BOT-BC465572  Claytonia saxosa Julie Kierstead Nelson; Brad Rust 2015-3-27 2015 -004 Tehama East slope of Tedoc Mountain, SE Klamath Range, rock outcrop E of Forest Svc Rd 28N05 1481 Comment
  HSC32891  Claytonia saxosa Thomas W. Nelson 1973-5-30 976 Humboldt Humboldt/Trinity Co. line, Mt. Lassic 1790 Comment
  HSC39548  Claytonia saxosa Thomas W. Nelson, James Nelson 1976-6-10 2681 Trinity Ridge above Senteney Rock 1555 Comment
  HSC47759  Claytonia saxosa Thomas W. Nelson, J. P. Smith 1978-5-6 3986 Trinity Blue Point 1555 Comment
  HSC68877  Claytonia saxosa Thomas W. Nelson, Jane Nelson 1980-6-20 5696 Trinity Shasta-Trinity National Forest, along FS Rd. 30N46 at Blue Point on Blue Point Ridge 1372 Comment
  HSC71826  Claytonia saxosa Thomas W. Nelson, Jane P. Nelson 1980-6-27 5957 Humboldt Saddle between Mt. Lassic and peak to E 1677 Comment
  HSC82185  Claytonia saxosa Thomas W. Nelson 1977-6-15 3442 Humboldt Along old road to ski area 1372 Comment
  UCD100550  Claytonia saxosa Thomas W. Nelson; Jane P. Nelson 1980-6-27 5952 Humboldt Six Rivers National Forest. Saddle between two peaks east of Mount Lassic. 1767 Comment
  UC1607971  Clematis ligusticifolia Donald G. Nelson 1940-8-7 718 Napa s of Pope Valley and east of St. Helena (along Soda Creek, Chiles Valley, Inner Coast Range Mts.); Inner Coast Range Mts., Chiles Valley, Soda Creek 85 Comment
  HSC32909  Collinsia greenei Thomas W. Nelson 1973-5-30 988 Trinity Along Mule Ridge SE of Red Lassic Comment
  HSC34860  Collinsia greenei Thomas W. Nelson, James Nelson 1975-5-5 1792 Lake Beside Hwy. 29, 2 mi. N of Middletown Comment
  HSC40014  Collinsia greenei Thomas W. Nelson, Jane P. Nelson 1976-7-1 2915 Humboldt Along N side of Mt. Lassic (Signal Peak) 1738 Comment
  HSC68700  Collinsia greenei Thomas W. Nelson, D. Gordon 1980-6-10 5572 Trinity Shasta-Trinity National Forest, along FS Rd. 1N05 at the copper mine along Copper Mine Hill 1463 Comment
  HSC68768  Collinsia greenei Thomas W. Nelson, James Nelson 1980-6-19 5654 Trinity Shasta-Trinity National Forest, Rattlesnake Ridge along Forest Servcie Rd. 29N62, 1.3 mi. W of junction with FS Rd. 29N58 1220 Comment
  JEPS81068  Collinsia greenei Thomas W. Nelson and Dave Gordon 1980-6-10 5572 Trinity Copper Mine Hill Shasta-Trinity National Forest, Pickett Peak Quad. (along road 1N95 at the copper mine) 1463 Comment
  HSC40673  Collinsia greenei Thomas W. Nelson, James Nelson 1976-6-22 2812 Trinity Along upper margin of meadow below Senteney Rock 1433 Comment
  HSC44834  Collinsia greenei Thomas W. Nelson, Jane P. Nelson 1976-6-10 2680 Trinity Above meadow along Rd. 5E27 just N of Jct. with Rd. 1S07 1555 Comment
  HSC67311  Collinsia greenei Thomas W. Nelson, Jane P. Nelson 1980-5-7 5181 Trinity Along old Hwy. 36 (Post Creek Rd.) at bridge over Glade Creek 884 Comment
  HSC33228  Collinsia heterophylla Thomas W. Nelson, Jane P. Nelson 1974-5-27 1340 Mendocino Eel River Campground, Mendocino National Forest Comment
  HSC67377  Collinsia linearis Thomas W. Nelson 1980-5-30 5267 Trinity Along FS Rd. 4N09, 1.6 mi. from jct. with Rd. 60 1128 Comment
  HSC40819  Collinsia parviflora Thomas W. Nelson, Jane P. Nelson 1976-6-22 2851 Trinity Trinity-Humboldt County line, in spring along road to Goat Hill 1646 Comment
  HSC39617  Collinsia parviflora Thomas W. Nelson, Jane P. Nelson 1976-6-15 2721 Humboldt Along old trail above Alder Springs 1585 Comment
  HSC44768  Collinsia parviflora Thomas W. Nelson, Jane P. Nelson 1977-4-24 3350 Trinity Along USFS Rd. 5E27, N of junction with Rd. 1S07 1524 Comment
  JEPS121714  Collinsia parviflora Julie Kierstead Nelson with Martin Lenz 2014-5-27 2011 026 A Shasta Forest Road 39N21 west of McCloud Reservoir, at Cabin Creek trailhead. Comment
  HSC81773  Collinsia rattanii Thomas W. Nelson, Jane P. Nelson 1980-5-30 5377 Trinity Along FS 4N09, 1.0 mi. from junction with road 60, above Eltapom Creek 945 Comment
  HSC47723  Collinsia rattanii Thomas W. Nelson, J. O. Sawyer, J. P. Smith 1978-5-6 4007 Shasta Along county line road [31N01] 2.5 mi. E and N from Deer Lick Jct. Comment
  HSC71293  Collinsia sparsiflora Thomas W. Nelson, Jane P. Nelson 1979-4-13 4633 Glenn Along FS Rd. 18N01 at junction with County Rd. Comment
  HSC33273  Collinsia sparsiflora var. collina Thomas W. Nelson, Jane P. Nelson 1974-4-8 1153 Lake 200 m E of Oasis Resort, 13 mi. E of Clear Lake Oaks along Hwy. 20 Comment
  HSC32527  Collinsia sparsiflora var. sparsiflora Thomas W. Nelson, Jane P. Nelson 1974-4-8 1148 Lake 200 m E of Oasis Resort, 13 mi. E of Clear Lake Oaks along Hwy. 20 Comment
  JEPS128467  Collinsia torreyi Julie Kierstead Nelson with Aaron Sims 2015-6-19 2015 -069 Tehama 1.5 miles SSW of Tedoc Gap, Beegum Creek watershed; Forest Road 27N12. Comment
  HSC32711  Collomia diversifolia Thomas W. Nelson, D. E. Anderson 1973-5-5 811 Mendocino W of Roberts Lake. Comment
  HSC71917  Collomia diversifolia Thomas W. Nelson, Jane P. Nelson 1980-6-22 5811 Shasta Shasta-Trinity National Forest, along USFS Rd. 28N07 E of junction with Rd. 41 1220 Comment
  HSC32563  Collomia grandiflora Thomas W. Nelson 1973-7-10 1052 Trinity Along Mule Ridge SE of Red Lassic Comment
  HSC81648  Collomia grandiflora Thomas W. Nelson, Jane P. Nelson 1980-6-17 5480 Trinity Along Old State Route 3, 1 mi. from junction with State Route 3; opposite entrance to Philpot Campground 762 Comment
  HSC45408  Collomia heterophylla Thomas W. Nelson, Jane Nelson 1977-6-19 3517 Humboldt SW of Alder Springs along Rd. 2S08 1463 Comment
  JEPS120256  Collomia heterophylla Julie Kierstead Nelson with Christy Wagner 2011-6-21 2011 -24 Trinity Forest Rd. 29N81A, west of the Bramlet Road (Forest Road 30N29) south of Highway 36W; 13 miles south of Hayfork Comment
  JEPS120200  Collomia tinctoria Julie Kierstead Nelson with Christy Wagner 2011-6-21 2011 -23 Trinity Forest Rd. 29N81A, west of the Bramlet Road (Forest Road 30N29) south of Highway 36W; 13 miles south of Hayfork Comment
  HSC71904  Comandra umbellata subsp. californica Thomas W. Nelson, Jane Nelson 1980-6-22 5825 Shasta Shasta-Trinity National Forest, junction of FS Rd. 41 and FS Rd. 28N08 1220 Comment
  UCD68042  Convolvulus arvensis Lori R. Nelson 1976-4-23 22 El Dorado On White Rock Road, 0.8 miles East of Placerville Road. Found along the roadside. Comment
  JEPS117875  Corallorhiza maculata Julie Kierstead Nelson 2006-6-17 2006 -30 Shasta Girard Lookout, 2 miles southwest of Castle Crags 1280 Comment
  HSC36796  Corallorhiza maculata Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-20 2042 Trinity Wats Lake Comment
  HSC82449  Cordylanthus pringlei Thomas W. Nelson, Jane P. Nelson, R. J. Cole 1979-7-27 5045 Tehama Along road from Regan Meadow to Brushy Mtn., 1 mi. from Regan Meadow 1433 Comment
  HSC72224  Cordylanthus tenuis subsp. viscidus Thomas W. Nelson, Jane P. Nelson 1980-8-21 6240 Trinity Along Salt Creek road, 2 miles from jct. with Hwy. 3 793 Comment
  HSC72240  Cordylanthus tenuis subsp. viscidus Thomas W. Nelson, Jane P. Nelson 1980-8-21 6256 Trinity Shasta-Trinity National Forest, Rattlesnake Ridge, along FS Rd. 29N59, 0.5 mi. E of junction with FS Rd. 30N29 1433 Comment
  HSC72246  Cordylanthus tenuis subsp. viscidus Thomas W. Nelson, Jane P. Nelson 1980-8-21 6249 Trinity Along FS Rd. 29N73, 0.5 mi. E of junction with FS Rd. 30N29 1372 Comment
  HSC81702  Cordylanthus tenuis subsp. viscidus Thomas W. Nelson, Jane P. Nelson, R. J. Cole 1979-7-27 5047 Tehama Along road from Regan Meadow to Brushy Mtn., 1 mi. from Regan Meadow 1433 Comment
  JEPS81040  Cordylanthus tenuis subsp. viscidus Thomas Nelson, Jane Nelson, and R. Jane Cole 1979-7-27 5047 Tehama ca 0.5 mi from Regan Meadow (along road from Regan Meadow to Brushy Mountain); Shasta Trinity National Forest 1402 Comment
  RSA412355  Cordylanthus tenuis subsp. viscidus Thomas W. Nelson 1976-10-25 3269 Trinity Just north of Black Lassic Campground. 1616 Comment
  UC1193377  Cornus glabrata R. E. Nelson 1949-8-14 101 Mendocino 1/4 mi. n.e. Largo Bridge (<Rd. W V>); Quad. 46D4 152 Comment
  CAS-BOT-BC212176  Cornus sericea Thomas Nelson 1977-6-3 3385 Humboldt Mad River at south end of Mad River Bridge, North Coast Range 53 Comment
  CAS-BOT-BC419724  Cornus sessilis Julie Kierstead Nelson; Martin Lenz 2014-6-3 2014 -064 Shasta Claiborne Creek watershed, tributary to McCloud River ca. 8 miles north of Shasta Lake. At bridge over creek along Road 35N18. 554 Comment
  UC1543085  Coronopus didymus Donald G. Nelson 1939-9-23 638 Marin 1 mi beyond Marshall's Landing (not far from Tomales Bay) Comment
  HSC26855  Coronopus didymus Thomas W. Nelson 1971-12-5 315 Humboldt 3300 block of D St. in Eureka Comment
  JEPS116599  Corylus cornuta var. californica Julie Kierstead Nelson 2006-5-10 2006 -6 Shasta Browns Creek & Chanchellula Creek confluence, Forest Road 1, 1 mi SW of Deerlick Springs 975 Comment
  UC1543003  Crassula connata Donald G. Nelson 1935-4-14 272 Orange between ocean and bay Newport Beach (in front of Pacific Electric Railway Station) Comment
  HSC40680  Crepis monticola Thomas W. Nelson 1976-7-9 2984 Trinity Above Senteney Rock 1524 Comment
  HSC81523  Crepis occidentalis subsp. conjuncta Thomas W. Nelson, Jane P. Nelson 1980-7-17 6105 Trinity Along FS Rd. 17 at summit at county line 2073 Comment
  HSC71850  Crepis pleurocarpa Thomas W. Nelson, Jane P. Nelson 1980-6-22 5843 Shasta Along FS road 1 mi. W of Regan Meadow 1524 Comment
  HSC82308  Crepis pleurocarpa Thomas W. Nelson, Jane P. Nelson 1979-6-15 4835 Trinity Mouth of Bear Creek 915 Comment
  HSC44153  Crepis pleurocarpa Thomas W. Nelson, Jane P. Nelson 1977-7-1 3544 Humboldt Between Bear and Blanket Creeks 1524 Comment
  HSC71923  Crepis pleurocarpa Thomas W. Nelson, Jane P. Nelson 1980-6-26 5908 Mendocino Mendocino National Forest, along FS Rd. 1N02 at Blue Banks, 3.6 mi. S of Grizzly Flat Ranger Station 1524 Comment
  RSA258839  Crepis pleurocarpa Thomas W. Nelson 1973-7-10 1045 Trinity Along Mule Ridge south-east of Red Lassic. Comment
  RSA293108  Crepis pleurocarpa Thomas W. Nelson, Jane P. Nelson 1980-6-19 5636 Trinity Along Old State Route 36 (Post Creek Road) at bridge over Glade Creek. 883 Comment
  UC1607992  Croton Donald G. Nelson 1935-3-23 183 Orange hills n Fullerton Comment
  HSC103569  Croton californicus Thomas W. Nelson, Jane Nelson 1983-8-18 7601 Santa Barbara ust north of Santa Maria, at intersection of US 101 and Broadwa., Comment
  CHSC105873  Crucianella angustifolia Julie Kierstead Nelson 2010-6-3 2010 -011 Shasta Gilman Road, 1/2 mile north of Hirz Bay turnoff, McCloud arm Shasta Lake. 365 Comment
  JEPS128449  Crucianella angustifolia Julie Kierstead Nelson with Martin Lenz 2015-5-18 2015 -048 Shasta Packers Bay, north shore of Shasta Lake, west of I-5. Comment
  HSC41227  Cryptantha affinis Thomas W. Nelson, James Nelson 1977-6-19 3481 Trinity Along FS Rd. 5E27 S of Senteney Rock 1524 Comment
  HSC82153  Cryptantha affinis Thomas W. Nelson, Jane P. Nelson 1979-6-25 4915 Trinity Stuart Gap 1524 Comment
  HSC81480  Cryptantha ambigua Thomas W. Nelson, Jane P. Nelson 1980-7-6 6016 Lassen Along Adin-Madeline Rd. 0.5 mi. W of Moll Reservoir. 1585 Comment
  UC857067  Cryptantha barbigera Aven Nelson, Ruth A. Nelson 1939-3-27 3289 San Diego near Julian (Hwy 78) Comment
  CAS-BOT-BC218856  Cryptantha costata Aven Nelson; Ruth A. Nelson 1939-3-23 3224 Imperial On sandy beach, west side of Salton Sea Comment
  JEPS13937  Cryptantha costata Aven Nelson, Ruth A. Nelson 1939-3-23 3224 Imperial w side Salton Sea Comment
  HSC70147  Cryptantha hispidula Thomas W. Nelson, Jane Nelson 1978-6-21 4246 Trinity At Philpot Creek Campground 762 Comment
  HSC81728  Cryptantha hispidula Thomas W. Nelson, Jane P. Nelson 1980-5-3 5137 Napa Along Butts Canyon Rd. N of Pope Valley 274 Comment
  HSC81994  Cryptantha hispidula Thomas W. Nelson, Jane P. Nelson 1980-5-3 5160 Napa Junction of Butts Canyon Rd. and Snell Valley Rd. 197 Comment
  HSC67215  Cryptantha microstachys Thomas W. Nelson, Jane P. Nelson 1980-6-16 5447 Trinity Shasta-Trinity National Forest, just N of Philpot Campground 793 Comment
  HSC82115  Cryptantha microstachys Thomas W. Nelson, Jane P. Nelson 1980-5-25 5289 Trinity Along trail from Blue Jay Mine-Little Red Mtn. Creek 1189 Comment
  HSC67297  Cryptantha milobakeri Thomas W. Nelson, Jane P. Nelson 1980-6-17 5517 Trinity Shasta-Trinity National Forest, across Salt Creek from Salt Creek Campground 915 Comment
  HSC68653  Cryptantha milobakeri Thomas W. Nelson, Jane P. Nelson 1980-6-18 5565 Trinity Along Rd. 2N10 4 mi. N of Indian Valley Guard Station, just S of junction with Rd. 2N01 1341 Comment
  HSC68761  Cryptantha milobakeri Thomas W. Nelson, Jane P. Nelson 1980-6-17 5526 Trinity Shasta-Trinity National Forest, along FS Rd. 1N12, 1.1 mi. from junction with FS Rd. 2N07 1006 Comment
  HSC103325  Cryptantha milobakeri Thomas W. Nelson, Jane Nelson 1980-6-24 5882 Lake Along Forest Service Rd. 17N16, 3.1 mi. E of Bear Creek Ranger Station 1220 Comment
  HSC70076  Cryptantha milobakeri Thomas W. Nelson 1978-6-23 4380 Trinity Along road from FS Rd. 29 to Foss Camp and FS Rd. 6 Comment
  RSA293094  Cryptantha milobakeri Thomas W. Nelson, Jane P. Nelson 1980-6-17 5517 Trinity Shasta-Trinity National Forest: Serpentine outcrop across Salt Creek from Salt Creek Campground. 915 Comment
  UC672002  Cryptantha muricata Evelyn Hart Nelson 1939-7-29 12 Santa Cruz Loma Prieta Santa Cruz Mountains Comment
  POM369143  Cryptantha torreyana Thomas W. Nelson 1976-7-9 2979 Trinity Above Senteney Rock. 1524 Comment
  CHSC110534  Cryptantha torreyana var. torreyana Julie Kierstead Nelson; Talitha Derksen 2012-6-4 2012 -048 Trinity Butter Creek watershed, Rd. 3N08F (decommissioned); 10 mi W of Hayford, S side of Butter Creek. 1080 Comment
  HSC82604  Cryptogramma acrostichoides Thomas W. Nelson 1979-7-11 4990 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC35844  Cucurbita foetidissima Thomas W. Nelson, Jane Nelson, James Nelson 1975-8-19 2168 Ventura Hwy. 126 E of Santa Paula. Comment
  UC1543177  Cuscuta californica Donald G. Nelson 1936-7-9 437 Orange East Buena Park Comment
  HSC34970  Cynoglossum grande Thomas W. Nelson 1975-5-24 1877 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC38156  Cynoglossum grande Thomas W. Nelson, Jane P. Nelson 1976-5-23 2499 Trinity Brown's Canyon Campground. Comment
  HSC40658  Cynoglossum grande Thomas W. Nelson, Jane P. Nelson 1976-7-1 2950 Trinity Along FS Rd. 5E27 just S of Senteney Rock 1524 Comment
  JEPS106455  Cynoglossum grande J. K. Nelson 2004-3-12 2004 -6 Shasta Jones Valley, S side of Shasta Lake; ca. 10 mi NE of Redding. S of County Road 5H04 (Forest Road 33N03) 335 Comment
  UC672001  Cynoglossum grande Evelyn Hart Nelson 1940-4-6 79 Santa Clara roadside between spring and fire trail Loma Prieta; Santa Cruz Mts., Loma Prieta 975 Comment
  HSC89946  Cyperus eragrostis Thomas W. Nelson, Jane P. Nelson 1978-6-21 4222 Trinity Along the Trinity River flood plain, 100 m above the mouth of Indian Creek 488 Comment
  CAS-BOT-BC465582  Cystopteris fragilis Julie Kierstead Nelson; Len Lindstrand III 2015-4-22 2015 -023 Shasta Near summit of Tombstone Mountain, eastern Klamath Range, E of I-5 1654 Comment
  JEPS128475  Cystopteris fragilis Julie Kierstead Nelson with Len Lindstrand III 2015-4-22 2015 -023 Shasta Near summit of Tombstone Mountain, eastern Klamath Range, east of I-5. Comment
  SEINET3926894  Dactylis glomerata Thomas Nelson, Jane P. Nelson 1976-7-26 3022 Humboldt Trinity-Humboldt Co. line. growing on road cut of 1S07 on serpentine west of Black Lassic.; 0 1615 Comment
  UC1543047  Dactylis glomerata Donald G. Nelson 1939-5-30 601 Alameda South Fork of Strawberry Creek Univ. of Calif. (s of the Life Sciences Bldg.); , South Fork of Strawberry Creek Comment
  UC724223  Dalea mollis Aven and Ruth Nelson 1939-3-29 3309 Riverside between Mecca and Hidden Springs Comment
  HSC32782  Damasonium californicum Thomas W. Nelson, D. Anderson 1973-5-5 820 Mendocino Roberts Lake area of Eden Valley, N of Eden Valley Ranch, E of Roberts Lake Comment
  HSC96656  Damasonium californicum Thomas W. Nelson, Dick Brummitt, Barbara Ertter 2004-7-1 9269 Mendocino NE of Eden Valley at S end of Roberts Lake 786 Comment
  HSC32856  Danthonia californica Thomas W. Nelson, D. Anderson 1973-5-6 852 Mendocino SE end of Eden Valley Comment
  HSC81716  Danthonia californica Thomas W. Nelson, Jane P. Nelson 1980-5-3 5133 San Mateo Intersection of Hwy. 92 and Hwy. 280, W of San Mateo. Comment
  CHSC118612  Danthonia unispicata Julie Kierstead Nelson; Martin Lenz, Rhonda Posey, Brenna Montagne 2016-6-9 2016013 Siskiyou Lower Parks Creek watershed, E Klamath Range; along Forest Service Road 42N19, 3 miles northwest of Stewart Springs; UTM NAD 83 Zone 10, 539617m E, 4586637m N. 1360 Comment
  HSC82293  Darlingtonia californica Thomas W. Nelson, Jane Nelson 1979-6-15 4825 Trinity Trinity-Siskiyou County line, head of Scott Mtn. Creek at Scott Mtn. Campground. 1646 Comment
  JEPS97188  Delphinium Julie Kierstead Nelson 1995-7-22 95005 Trinity ca. 8 mi SW of Castella (Tamarack Lake, E side); Shasta-Trinity National Forests, Mt. Shasta Ranger District 1798 Comment
  HSC34963  Delphinium decorum subsp. tracyi Thomas W. Nelson 1975-5-24 1861 Humboldt McKeown Ranch, N of Dinsmore. Comment
  CAS-BOT-BC8987  Delphinium depauperatum T. W. Nelson; J. P. Nelson 1980-7-17 6107 Trinity China Mountain Quad. along Forest Service Road 17 at summit at county line 2072 Comment
  CHSC78091  Delphinium nudicaule Terry Nelson 1998-4-11 240 -12 Shasta On a roadside embankment, 2 mi sw of Whiskeytown Lake and 100 yds e of Brandy Creek. 432 Comment
  HSC33087  Delphinium nuttallianum Thomas W. Nelson, Jane P. Nelson 1974-5-26 1290 Glenn Saddle just N of trail to Black butte 2134 Comment
  UC671909  Dendromecon rigida Evelyn Hart Nelson 1940-4-20 88 Santa Clara fire trail beyond spring; Santa Cruz Mountains, Loma Prieta 975 Comment
  HSC35915  Deschampsia elongata Thomas W. Nelson, James Nelson 1975-6-21 1927 Trinity Brown's Canyon Campground. Comment
  HSC103334  Dicentra chrysantha Thomas W. Nelson, Jane Nelson 1982-5-29 6967 Glenn Along Forest Service Rd. 18N30 to Black Diamond Mtn., 5 mi. from junction with county road north of Stonyford 701 Comment
  HSC33100  Dichelostemma capitatum subsp. capitatum Thomas W. Nelson, Jane P. Nelson 1974-5-27 1324 Mendocino Mendocino National Forest near Mendocino Pass 1524 Comment
  HSC39477  Dichelostemma capitatum subsp. capitatum Thomas W. Nelson, Alan Goes, James Nelson 1976-5-4 2443 Mendocino Along BLM road to School Section Creek 610 Comment
  HSC69918  Dichelostemma capitatum subsp. capitatum Thomas W. Nelson, Jane P. Nelson 1978-4-2 3869 Lake Along Walker Ridge Rd., 6 mi. N of junction with Hwy. 20 Comment
  HSC81657  Dichelostemma capitatum subsp. capitatum Thomas W. Nelson, Jane P. Nelson 1980-7-13 6061 Humboldt Along the rd. from Dinsmore to Anderson Ford-McKeown Ranch rd. 762 Comment
  HSC82241  Dichelostemma capitatum subsp. capitatum Thomas W. Nelson 1979-4-10 4587 Placer Along W side of Sierra College Blvd. between I-80 and Douglas Blvd. Comment
  HSC34880  Dichelostemma capitatum subsp. capitatum Thomas W. Nelson, James Nelson 1975-3-25 1753 Sonoma Beside Hwy. 128 E of Geyserville Comment
  HSC38095  Dichelostemma congestum Thomas W. Nelson, James Nelson 1976-5-30 2616 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC40660  Dichelostemma congestum Thomas W. Nelson, Jane P. Nelson 1976-7-1 2946 Trinity Along FS Rd. 5E27, just S of meadow above Senteney Rock 1524 Comment
  HSC33071  Dichelostemma congestum Thomas W. Nelson, Jane P. Nelson 1974-5-10 1259 Mendocino W side of Hwy. 101, 2 mi. N of its junction with Redwood Valley Rd. Comment
  HSC82426  Dichelostemma congestum Thomas W. Nelson, Jane P. Nelson 1980-4-26 5085 Mendocino Along road to Lake Mendocino Campground Comment
  HSC38087  Dichelostemma ida-maia Thomas W. Nelson, Jane P. Nelson 1976-5-30 2608 Humboldt McKeown Ranch, N of Dinsmore. Comment
  SEINET3885611  Dichelostemma ida-maia Thomas Nelson, Jane P. Nelson; James Nelson 1975-6-21 1947 Humboldt Beside Highway 36 ca. 5 mi. east of Bridgeville.; 0 Comment
  HSC35026  Dichelostemma multiflorum Thomas W. Nelson, James Nelson 1975-5-24 1848 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC71929  Dichelostemma multiflorum Thomas W. Nelson, Jane P. Nelson 1980-6-22 5757 Trinity Shasta-Trinity National Forest, along FS Rd. 29N28, 7 mi. S of junction with Hwy. 36, 1 mi. N of Goat Camp 1372 Comment
  HSC35967  Dichelostemma multiflorum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-21 1951 Humboldt Hwy. 36, 5 mi. E of Bridgeville Comment
  HSC103303  Dichelostemma volubile Thomas W. Nelson, Jane Nelson 1982-5-29 6970 Glenn Along Forest Service Rd. 18N30 to Black Diamond Mtn., 5 mi. from junction with county road north of Stonyford 701 Comment
  HSC103593  Dieteria canescens var. shastensis Thomas W. Nelson, Jane Nelson 1986-6-23 8140 Lassen Along State Route 44, 10.9 mi. SE of Old Station junction. 1585 Comment
  HSC103635  Dieteria canescens var. shastensis Thomas W. Nelson, Jane Nelson 1983-8-12 7591 Siskiyou Along Forest Service Rd. 40N08, ~ 1 mi. from junction with State Route 3 at Scott Mountain summit 1646 Comment
  HSC96161  Dieteria canescens var. shastensis Thomas W. Nelson, Jane P. Nelson 1984-7-28 7759 Trinity Along trail to Mumbo Peak 2043 Comment
  CHSC111314  Diplacus Julie Kierstead Nelson; Brenna Montagne 2012-9-10 2012 -098 Siskiyou Coonrod Flat, east side of Mount Shasta. Roadsides and forest openings, on fine dry volcanic soil with Pinus ponderosa. 1210 Comment
  CHSC35613  Diplacus nanus Thomas W. Nelson; Jane P. Nelson 1980-6-20 5677 Trinity Shasta-Trinity National Forest. Along 4-wheel drive road out Blue Point Ridge 1 mile west of junction with road 29N55. 1554 Comment
  CAS-BOT-BC43654  Dithyrea californica Aven Nelson; Ruth Nelson 1939-3-28 3303 Riverside South of Mecca. Comment
  HSC33111  Dodecatheon hendersonii Thomas W. Nelson, Jane P. Nelson 1974-5-27 1312 Mendocino Mendocino National Forest near Mendocino Pass 1524 Comment
  HSC71232  Dodecatheon hendersonii Thomas W. Nelson, Jane P. Nelson 1977-4-23 3340 Trinity Brown's Canyon Campground 793 Comment
  HSC96703  Downingia cuspidata Thomas W. Nelson, Dick Brummitt, Barbara Ertter 2004-7-1 9267 Mendocino NE of Eden Valley at S end of Roberts Lake 786 Comment
  HSC71154  Draperia systyla Thomas W. Nelson, Jane P. Nelson, J. P. Smith 1978-7-23 4466 Shasta Along road to Bully Choop 12 mi. from junction with County Rd. A16 Comment
  HSC38071  Drymocallis glandulosa Thomas W. Nelson, James Nelson 1976-5-30 2636 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC1618030  Drymocallis glandulosa var. reflexa Donald G. Nelson 1936-5-21 376 Riverside e of Lake Hemet (and n of Mount Thomas, just e of Hurkey Creek Camp area) Comment
  JEPS123429  Drymocallis lactea var. austiniae Julie Kierstead Nelson with Marie Buell 2015-7-18 2015 -105 Trinity Yolla Bolly Wilderness; near Tehama County line; 0.3 miles W of North Yolla Bolly; headwaters of the east fork of the south fork of Trinity River. Comment
  HSC27060  Drymocallis lactea var. lactea Thomas W. Nelson 1973-7-14 1090 Trinity At Head of trail to Deadfall Lake Comment
  HSC34932  Dryopteris arguta Thomas W. Nelson, James Nelson 1975-3-25 1758 Sonoma Beside Hwy. 128, E of Geyserville at the Sonoma-Napa Co. line Comment
  UC671903  Dudleya cymosa Evelyn Hart Nelson 1940-7-8 157 Santa Clara below deserted flat (lower Loma); Santa Cruz Mtns, Loma Prieta 784 Comment
  RSA275279  Eleocharis acicularis var. acicularis Thomas W. Nelson, Jane P. Nelson 1977-7-4 3592 Humboldt Pond above Alder Springs 1585 Comment
  UC1784199  Eleocharis macrostachya Donald G. Nelson 1935-4-15 307 Orange on road from Garden Grove to Costa Mesa, converging near Costa Mesa, toward main highway from Santa Ana Comment
  SEINET3910832  Eleocharis macrostachya Thomas Nelson 1977-9-22 3749 Humboldt Eureka Quad. Along east side of State Route 101 just north of the Eureka Airport.; 0 Comment
  CHSC105713  Eleocharis quadrangulata Julie Kierstead Nelson 2007-9-20 2007 -032 Shasta Floodplain of Stillwater Creek, east of Encanto Way, 8 miles NE of Redding. 182 Comment
  HSC68788  Elymus Thomas W. Nelson, Jane Nelson 1980-6-19 5651 Trinity Shasta-Trinity National Forest, Rattlesnake Ridge along Forest Servcie Rd. 29N62, 1.3 mi. W of junction with FS Rd. 29N58 1220 Comment
  HSC70122  Elymus Thomas W. Nelson, Jane Nelson 1978-6-23 4352 Trinity Along road to Hell to Find Lake. Comment
  HSC40324  Elymus X hansenii Thomas W. Nelson, James Nelson 1976-7-1 2884 Trinity Below Senteney Rock. 1463 Comment
  HSC40336  Elymus elymoides var. californicus Thomas W. Nelson, Jane P. Nelson 1976-7-1 2935 Trinity Along FS 5E27 just N of junction with FS 1S07 1555 Comment
  HSC40317  Elymus glaucus Thomas W. Nelson, Jane P. Nelson 1976-7-1 2912 Humboldt Along NW side of Lassic Peak (Signal Peak). 1738 Comment
  HSC40329  Elymus glaucus Thomas W. Nelson 1976-7-9 2993 Humboldt Ridge S of the E peak of the Lassic Peak (Signal peak) group. 1707 Comment
  SEINET4674729  Elymus hispidus Thomas Nelson, Jane Nelson 1976-7-26 3023 Humboldt Trinity-Humboldt Co. line.; 0 1615 Comment
  UC671940  Elymus multisetus Evelyn Hart Nelson 1940-6-26 147 Santa Clara Loma Prieta Santa Cruz Mts. (spring) 975 Comment
  HSC40397  Elymus trachycaulus subsp. trachycaulus Thomas W. Nelson, Jane P. Nelson 1976-7-26 3023 Trinity Trinity/Humboldt Co. line, along FS Rd. 1S07 W of Black Lassic 1616 Comment
  RSA652504  Emmenanthe penduliflora Beth Nelson 1991-5-5 22 San Bernardino North of Fontana. 15 fry. N.E., exit Sierra Ave. 0.3 miles to Lytle Creek Rd. Turn left, 1.2 miles. Comment
  UC700953  Emmenanthe penduliflora Aven and Ruth Nelson 1939-3-25 3264 San Diego Borego Desert State Park, in the canyon near the Public camp Comment
  CAS-BOT-BC131106  Encelia actoni Aven Nelson; Ruth Nelson 1939-4-4 3410 Inyo In Titus Canyon, north end of Death Valley Comment
  CAS-BOT-BC131296  Encelia farinosa Aven Nelson; Ruth Nelson 1939-3-27 3290 Imperial Near Fish Springs on Salton Sea Comment
  CAS-BOT-BC131308  Encelia farinosa Aven Nelson; Ruth Nelson 1939-4-4 3399 Inyo In Titus Canyon, north end of Death Valley Comment
  NY70198  Ephedra aspera A. Nelson 1939-3-24 3248 Unknown Near the Palms, Borego Desert State Park Comment
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Aug 9 2010
  CAS-BOT-BC81703  Ephedra funerea Aven Nelson; Ruth Nelson 1938-4-3 3394 Inyo On the rim overlooking Death Valley, from [Dante's View] Dantes View Comment
  GH356593  Ephedra funerea A. Nelson & R. A. Nelson 1939-3-24 3248 Unknown in canyon near the Palms, Borego [Anza-Borrego] Desert State Park Comment
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Jul 14 2012
  CAS-BOT-BC81919  Ephedra viridis Aven Nelson; Ruth Nelson 1939-4-4 3424 Inyo In Titus Canyon, at north end of Death Valley Comment
  HSC32569  Epilobium brachycarpum Thomas W. Nelson 1973-9-3 1125 Humboldt McKeown Ranch N of Dinsmore, rocky alluvium along Mad River Comment
  JEPS120260  Epilobium canum subsp. latifolium Julie Kierstead Nelson with Len Lindstrand III 2010-9-20 2010 -034 Shasta Satin Peak, 25 miles S of Mt. Shasta, 13 miles E of Interstate 5, 30 miles NNE of Redding Comment
  HSC27058  Epilobium ciliatum subsp. ciliatum Thomas W. Nelson 1973-7-14 1095 Trinity At the head of the trail to Deadfall Lake 1982 Comment
  HSC81503  Epilobium ciliatum subsp. ciliatum Thomas W. Nelson, Jane P. Nelson 1980-8-4 6229 Trinity Along N side of Mule Ridge 1646 Comment
  RSA275296  Epilobium ciliatum subsp. ciliatum Thomas W. Nelson 1977-7-30 3680 Trinity Along the South Fork of Black Lassic Creek 1494 Comment
  HSC41820  Epilobium densiflorum Thomas W. Nelson, Jane P. Nelson 1977-8-6 3699 Humboldt Along old trail above Alder Springs 1616 Comment
  HSC32548  Epilobium hallianum Thomas W. Nelson 1973-7-10 1031 Humboldt Humboldt/Trinity County line, Mt. Lassic (Signal Peak) 1790 Comment
  HSC82257  Epilobium hallianum Thomas W. Nelson, Jane P. Nelson 1980-7-20 6175 Siskiyou Above and to SE of Big Carmen Lake 1738 Comment
  CHSC118640  Epilobium luteum Julie Kierstead Nelson; Martin Lenz 2015-8-13 2015 -122 Siskiyou Headwaters of west fork Parks Creek, 2 miles NE of China Mountain. UTM NAD 83 Zone 10, 536798m E, 4583360m N. 2208 Comment
  HSC32700  Epilobium minutum Thomas W. Nelson, Jane P. Nelson 1973-4-24 772 Mendocino Beside jeep road to Roberts Lake, N of Eden Valley Ranch. Comment
  HSC38023  Epilobium minutum Thomas W. Nelson, Jane P. Nelson 1976-5-10 2486 Butte Just E of Magalia Comment
  HSC39513  Epilobium minutum Thomas W. Nelson, Alan Goes, James Nelson 1976-5-24 2597 Mendocino E of Red Mtn. 1098 Comment
  HSC39527  Epilobium minutum Thomas W. Nelson 1976-6-14 2709 Humboldt S of Lassic Peak 1524 Comment
  HSC41818  Epilobium minutum Thomas W. Nelson, Jane P. Nelson 1977-6-19 3514 Humboldt SW of Alder Springs along Rd. 2S08 1463 Comment
  HSC67265  Epilobium minutum Thomas W. Nelson, Jane P. Nelson 1980-5-8 5218 Trinity Shasta-Trinity National Forest, Friend Mtn. along FS Rd. 2N15 1372 Comment
  HSC67272  Epilobium minutum Thomas W. Nelson, Jane P. Nelson 1980-6-17 5475 Trinity Shasta-Trinity National Forest, along old Hwy. 36, 1 mi. W of Hwy. 3 near Peanut 793 Comment
  HSC67422  Epilobium minutum Thomas W. Nelson, Jane P. Nelson 1980-5-25 5322 Trinity Along Covelo-Zenia Rd., 1.5 mi. S of junction with Zenia-Van Duzen River Rd. 976 Comment
  HSC68781  Epilobium minutum Thomas W. Nelson, Jane P. Nelson 1980-6-19 5642 Trinity Along Rd. 29N58, Rattlesnake Ridge, at junction with Rd. 29N67 1341 Comment
  HSC71903  Epilobium minutum Thomas W. Nelson, Jane P. Nelson 1980-6-22 5828 Shasta Shasta-Trinity National Forest, junction of FS Rd. 41 and FS Rd. 28N08 1220 Comment
  CHSC118636  Epilobium minutum Julie Kierstead Nelson; Martin Lenz, Rhonda Posey, Brenna Montagne 2016-6-9 2016 -017 Siskiyou Lower Parks Creek watershed, E Klamath Range, along Forest Service Road 42N19, 3 miles northwest of Stewart Springs. UTM NAD 83 Zone 10, 539249m E, 4586866m N. 1478 Comment
  HSC67460  Epilobium minutum Thomas W. Nelson, Jane P. Nelson 1980-5-25 5324 Trinity Along Covelo-Zenia Rd., 1.5 mi. S of Lake Mtn. Ranch. 823 Comment
  CAS-BOT-BC419733  Epilobium oreganum Julie K. Nelson; Kristen Kaczynski 2001-9-13 2001 -034 Trinity Shasta-Trinity National Forest, Western Azalea Special Interest Area, adjacent to Bramlet Road, County Road 29, south of Hwy. 36. South side of East Fork Smoky Creek. 1120 Comment
  JEPS120241  Epilobium oreganum Julie Kierstead Nelson with Zack Voigtman 2012-8-20 2012 -085 Shasta Boy Scout pond, Headwaters of N Fork Beegum Creek Comment
  RSA458736  Epilobium oreganum Thomas W. Nelson 1977-7-30 3678 Trinity Along north side of Mule Ridge 1463 Comment
  SEINET10632323  Epilobium oreganum Jane P. Nelson, Thomas W. Nelson 1975-7-20 Nelson 2053 Humboldt T2S, RSE, Sec 13; wet boggy serpentine soil under Jeffrey pine forest beside Rd 2508 to Pine Mtn. Comment
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Feb 3 2021
  HSC25968  Epilobium rigidum Thomas W. Nelson 1970-10-17 240 Del Norte Mouth of Stoney Creek Comment
  HSC82195  Epilobium torreyi Thomas W. Nelson, Jane P. Nelson 1980-7-6 6050 Lassen Along Ash Creek at Ash Creek Campground 1494 Comment
  UC671930  Epipactis gigantea Evelyn Hart Nelson 1939-8-16 34 Santa Clara Loma Prieta Santa Cruz Mountains (by spring) 975 Comment
  HSC38139  Equisetum hyemale subsp. affine Thomas W. Nelson, Jane Nelson, J. P. Smith, James Nelson 1976-4-13 2370 Lake Along rd. 2 mi. E of Bartlet Springs 610 Comment
  UC1543037  Equisetum telmateia subsp. braunii Donald G. Nelson 1937-4-1 482 Alameda creek in front of Cordonices Clubhouse, Cordonices Playground on Euclid Ave, just s of Eunice Berkeley Comment
  CAS-BOT-BC422325  Eragrostis pilosa var. pilosa Julie Kierstead Nelson 2005-8-13 2005 -015 Shasta 5 mi. N of Shasta College, NE of Redding; floodplain of unnamed tributary to Stillwater Creek 198 Comment
  HSC34983  Erechtites glomeratus Thomas W. Nelson 1974-9-13 1710 Humboldt King Salmon area Comment
  UC724382  Eremalche rotundifolia Aven and Ruth Nelson 1939-3-29 3317 Riverside s. of Mecca (Hidden Springs Canyon) Comment
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Jul 14 2012
  JEPS123412  Eremogone congesta Julie Kierstead Nelson with Marie Buell 2015-7-15 2015 -085 Trinity Yolla Bolly Wilderness; gravelly ridgetop and north aspect upper slope 1 mile SE of Black Rock. Comment
  HSC81999  Eremogone congesta var. congesta Thomas W. Nelson, Jane P. Nelson 1979-6-16 4854 Siskiyou Along Hwy. 3, 3.1 mi. N of Scott Mtn. Summit 1280 Comment
  CAS-BOT-BC174221  Eremogone congesta var. congesta Thomas W. Nelson; Jane P. Nelson 1980-7-17 6084 Siskiyou Along Forest Service road 17 1 mile north of summit at county line 2072 Comment
  UC1543102  Ericameria linearifolia Donald G. Nelson 1937-4-24 520 a Contra Costa on March Creek Road in rolling hill country n of Byron (edge of gravely soil pit evidently dug out of former bank of stream, open sunny area) Comment
  HSC40116  Ericameria nauseosa Thomas W. Nelson, James Nelson 1976-10-25 3275 Trinity Along W side of Red Lassic 1707 Comment
  UC466808  Ericameria nauseosa var. oreophila Aven Nelson 1922-11-14 9977 Kern Tehachapi Pass Comment
  HSC34657  Ericameria nauseosa var. speciosa Thomas W. Nelson, J. O. Sawyer 1974-10-29 1741 Siskiyou Hwy. 3, just S of Calaghan Comment
  HSC41109  Ericameria nauseosa var. speciosa Thomas W. Nelson, Jane P. Nelson, James Nelson 1976-8-29 3263 Modoc Modoc National Forest; along Hwy. 299 just N west of Adin Pass 1524 Comment
  HSC72265  Ericameria nauseosa var. speciosa Thomas W. Nelson, Jane P. Nelson 1980-8-21 6270 Trinity Along 4-wheel drive road out Blue Point Ridge, 0.4 miles from jct. with road 29N55 1585 Comment
  CAS-BOT-BC299489  Ericameria ophitidis Thomas W. Nelson; Jane P. Nelson 1980-8-21 6260 Trinity Along road 29N62 0.4 miles from junction with road 29N58 1371 Comment
  CAS-BOT-BC299493  Ericameria ophitidis Thomas W. Nelson; Jane P. Nelson 1980-8-21 6275 Trinity Along Panther Camp Trail 200 yards north of junctoin with road 29N73 1645 Comment
  HSC70158  Ericameria ophitidis Thomas W. Nelson, Jane P. Nelson 1978-7-21 4419 Trinity Along SR 3 ca. 1/4 mi. from Salt Creek Bridge 762 Comment
  HSC72223  Ericameria ophitidis Thomas W. Nelson, Jane P. Nelson 1980-8-21 6241 Trinity Along Salt Creek road, 2 miles from jct. with Hwy. 3 793 Comment
  HSC72254  Ericameria ophitidis Thomas W. Nelson, Jane P. Nelson 1980-8-21 6281 Trinity Shasta-Trinity National Forest. Along road 28N07 just E of junction with road 41 1220 Comment
  HSC72267  Ericameria ophitidis Thomas W. Nelson, Jane P. Nelson 1980-8-21 6268 Trinity Shasta-Trinity National Forest Hill above road 29N55 at junction with spur road; 5.6 mi. S of junction with S.R. 36 1677 Comment
  HSC81837  Ericameria ophitidis Thomas W. Nelson, Jane P. Nelson, R. J. Cole 1979-7-27 5055 Tehama Along ridge at Pole Corral Gap 1311 Comment
  HSC82450  Ericameria ophitidis Thomas W. Nelson, Jane P. Nelson, R. J. Cole 1979-7-27 5043 Tehama Along road from Regan Meadow to Brushy Mtn., 1 mi. NW of Regan Meadow 1433 Comment
  RSA293088  Ericameria ophitidis Thomas W. Nelson 1980-8-21 6269 Trinity Along 4-wheel drive road out Blue Point Ridge, 0.4 miles from jct with road 29N55. 1585 Comment
  UCD131428  Ericameria ophitidis Thomas W. Nelson; Jane P. Nelson 1980-8-21 6279 Shasta Shasta-Trinity National Forest. Along forest service road ca. 1 mile west of Regan Meadow. 1524 Comment
  UCR45360  Ericameria ophitidis Thomas W. Nelson, Jane P. Nelson 1980-8-21 6255 Trinity Shasta-Trinity National Forest, Rattlesnake Ridge, along forest service road 29N59, c. 1/2 mi. east of junction with F.S. Rd 30N29 1433 Comment
  UC1792475  Erigeron Thomas W. Nelson, Sydney Carothers 2004-6-18 9253 Humboldt Board Camp Mountain Road 49N38 1 mile from junction with Forest Service Road 1. 1481 Comment
  HSC70027  Erigeron foliosus var. mendocinus Thomas W. Nelson 1978-6-14 4197 Del Norte Along French Hill Rd., 8.7 mi. from junction with Hwy. 199 Comment
  UC1543063  Erigeron glaucus Donald G. Nelson 1937-7-10 531 Marin on n sloping bank just w of Point Reyes Lighthouse (and above the bird rocks); Point Reyes Comment
  CAS-BOT-BC295410  Erigeron inornatus Thomas W. Nelson; Jane P. Nelson 1980-7-21 6146 Trinity North Coast Ranges. Along State Route 3 at mouth of Tangle Blue Creek 975 Comment
  HSC44092  Erigeron inornatus var. inornatus Thomas W. Nelson, Jane P. Nelson 1977-8-6 3709 Trinity N slope of Black Lassic 1677 Comment
  HSC39604  Erigeron inornatus var. inornatus Thomas W. Nelson, Jane P. Nelson 1976-7-26 3038 Humboldt S facing slope along ridge W of Lassic Peak 1707 Comment
  JEPS118703  Erigeron petrophilus var. viscidulus Julie Kierstead Nelson, Eric White, Rhonda Posey, Mary Ellen Colberg, Sasha Flamm 2010-8-9 2010 -028 Siskiyou East slope of Mount Eddy, headwaters of Wagon Creek. Mount Eddy 7.5' quad. Comment
  RSA517729  Erigeron philadelphicus Donald G. Nelson 1938-4-24 566 Contra Costa Marsh Creek Highway, 1 mile north of Mt. Diablo Comment
  CHSC110658  Eriodictyon californicum Julie Kierstead Nelson 2012-5-1 2012 -009 Shasta 5 mi. N of Shasta College, NE of Redding; ridgetop roadside in rural residential area. 208 Comment
  CHSC32896  Eriodictyon californicum Thomas Nelson; James Nelson 1976-5-24 2604 Mendocino At junction of Cat Track Rd. and BLM road to School Section Creek. 731 Comment
  HSC48158  Eriodictyon californicum Thomas W. Nelson, Jane P. Nelson 1978-4-28 3923 Mendocino SE side of Lake Mendocino Comment
  RSA275335  Eriodictyon californicum Thomas W. Nelson, Jane P. Nelson 1978-4-28 3923 Mendocino Southeast side of Lake Mendocino. Comment
  RSA298327  Eriodictyon californicum Thomas W. Nelson, Jane P. Nelson 1978-4-28 3918 Mendocino Southeast side of Lake Mendocino. Comment
  RSA401497B  Eriodictyon californicum Thomas W. Nelson, James Nelson 1976-5-24 2604 Mendocino Junction of Cat Track Road and BLM road to School Section Creek. 732 Comment
  UC770655  Eriodictyon californicum R. E. Nelson 1948-6-25 57 Mendocino Booneville-Ukiah cutoff 701 Comment
  UCD119290  Eriodictyon californicum Thomas Nelson; Jane Nelson 1978-4-28 3923 Mendocino Along southeast side of Lake Mendocino. Comment
  UC1925892  Eriogonum Donald G. Nelson 1936-6-5 438 Orange Hills NE of Fullerton. 91 Comment
  HSC35877  Eriogonum angulosum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-8-19 2171 Los Angeles Beside Hwy. 5 just W of junction with Hwy. 138 Comment
  HSC70173  Eriogonum compositum Thomas W. Nelson, Jane P. Nelson 1978-6-22 4309 Trinity Along branch rd. off Dubakella Rd. 2 mi. from junction with Red Mtn. Motorway, SW of S Dubakella 1555 Comment
  HSC32678  Eriogonum compositum var. compositum Thomas W. Nelson 1973-7-10 1024 Trinity Red Lassic area 1799 Comment
  HSC35695  Eriogonum compositum var. compositum Thomas W. Nelson, B. Reinhardt 1975-7-30 2102 Humboldt Beside road out Whiting Ridge Comment
  HSC40568  Eriogonum compositum var. compositum Thomas W. Nelson, James Nelson 1976-6-22 2765 Trinity Senteney Rock. 1524 Comment
  HSC72229  Eriogonum dasyanthemum Thomas W. Nelson, Jane P. Nelson 1980-6-23 5861 Tehama Along Pettyjohn Rd., 0.5 mi. E of junction with road to Saddle Camp 915 Comment
  HSC72217  Eriogonum dasyanthemum Thomas W. Nelson, Jane P. Nelson 1980-6-23 5871 Tehama Along Colyear Springs Rd. 1.6 mi. E of junction with Raglin Ridge Rd. 701 Comment
  UCD99898  Eriogonum dasyanthemum Thomas W. Nelson; Jane P. Nelson 1980-6-22 5808 Shasta Shasta-Trinity National Forest. Along road 28N07 just east of junction with road 41. 1219 Comment
  HSC39461  Eriogonum kelloggii Thomas W. Nelson, Alan Goes, James Nelson 1976-5-24 2590 Mendocino Along road east of Red Mountain. 1098 Comment
  HSC96446  Eriogonum kelloggii Thomas W. Nelson, Jane P. Nelson 2003-6-13 9141 Mendocino Along rd. around the S side of the summit of Little Red Mtn. 915 Comment
  CAS-BOT-BC259269  Eriogonum libertini Thomas W. Nelson; Jane P. Nelson 1980-6-20 5690 Trinity Shasta-Trinity National Forest. Along road 30N46 at Blue Point on Blue Point Ridge 1371 Comment
  HSC68726  Eriogonum libertini Thomas W. Nelson, Jane P. Nelson 1980-6-22 5743 Trinity Shasta-Trinity National Forest, along FS Rd. 29N28, 7 mi. S of junction with Hwy. 36, 1 mi. N of Goat Camp 1372 Comment
  HSC68844  Eriogonum libertini Thomas W. Nelson, Jane P. Nelson 1980-6-20 5698 Trinity Shasta-Trinity National Forest, end of Rd. 30N28A 1463 Comment
  HSC71043  Eriogonum libertini Thomas W. Nelson, Jane P. Nelson 1979-6-25 4888 Tehama Along rd. to Mt. Tedoc From Tedoc Gap 1494 Comment
  HSC71044  Eriogonum libertini Thomas W. Nelson, Jane P. Nelson 1978-6-22 4373 Trinity N of Red Mtn. along rd. from Red Mtn. to Hell to Find Lake 1616 Comment
  RSA293085  Eriogonum libertini Thomas W. Nelson, Jane P. Nelson 1980-6-19 5626 Trinity Shasta-Trinity National Forest; Along Route 3, 0.3-0.5 miles south of Salt Creek Bridge. 762 Comment
  HSC70031  Eriogonum luteolum Thomas W. Nelson, Jane P. Nelson 1978-6-22 4270 Trinity Along Hwy. 3, S of Peanut 762 Comment
  HSC72259  Eriogonum luteolum Thomas W. Nelson, Jane P. Nelson 1980-8-21 6276 Trinity Along USFS rd. to Hell to Find Lake 1159 Comment
  HSC40173  Eriogonum marifolium Thomas W. Nelson, Jane P. Nelson 1976-8-1 3126 Shasta Lassen Volcanic National Park, Lassen Rd. at Kings Creek Meadow Comment
  HSC40174  Eriogonum marifolium Thomas W. Nelson, Jane P. Nelson 1976-8-1 3127 Shasta Lassen Volcanic National Park, Lassen Rd. at Kings Creek Meadow Comment
  JEPS123425  Eriogonum nudum Julie Kierstead Nelson with Marie Buell 2015-7-18 2015 -109 Trinity Yolla Bolly Wilderness; near Tehama County line; 0.3 miles W of North Yolla Bolly; headwaters of the east fork of the south fork of Trinity River. Comment
  CHSC118629  Eriogonum nudum Julie Kierstead Nelson; Marie Buell 2015-7-18 2015 -109 Trinity Yolla Bolly Wilderness; near Tehama County line; 0.3 miles W of North Yolla Bolly; headwaters of the east fork of the south fork of Trinity River. UTM NAD 83 Zone 10, 501873m E, 4449333m N. 2215 Comment
  HSC32542  Eriogonum nudum var. nudum Thomas W. Nelson 1973-7-10 1041 Trinity Along Mule Ridge SE of Red Lassic Comment
  HSC41115  Eriogonum nudum var. pubiflorum Thomas W. Nelson, Jane P. Nelson, James Nelson 1976-8-29 3257 Modoc Modoc National Forest: along Hwy. 299 just NW of Adin Pass 1524 Comment
  HSC41146  Eriogonum nudum var. pubiflorum Thomas W. Nelson, Jane P. Nelson 1976-8-2 3098 Shasta Beside Hwy. 44 7.2 mi. E of Shingletown Comment
  HSC63563  Eriogonum prociduum Thomas W. Nelson, Jane P. Nelson 1980-7-6 6004 Lassen Along Adin-Madelin Rd., 16 mi. E of Adin in Ash Valley 1555 Comment
  JEPS128833  Eriogonum siskiyouense Julie Kierstead Nelson with Rhonda Posey 2017-7-18 2017 -045 Siskiyou Eastern Klamath Ranges; Forest Service Road 41N14 Y, 0.1 mile west of Parks Creek Road (County Road 17). Comment
  HSC63564  Eriogonum strictum var. anserinum Thomas W. Nelson, Jane P. Nelson 1980-7-6 6033 Lassen Ash Valley along rd. branching off Adin-Madeline Rd. 2.5 mi. from jct. 1555 Comment
  UC849590  Eriogonum thomasii Aven Nelson, Ruth A. Nelson 1939-3-30 3351 Riverside near Desert Center (n of Chuckwalla Mts.) Comment
  HSC103860  Eriogonum umbellatum var. nelsoniorum Thomas W. Nelson, Shauna Hee 2006-8-4 9472 Trinity Hwy. 299, 100 m SE of bridge over Stuart Fork of Trinity River 730 Comment
Read comments
Feb 29 2016
  CHSC98801  Eriogonum ursinum var. erubescens Julie Kierstead Nelson 2006-6-29 2006 -042 Shasta Shasta/Trinity County line at intersection of County Road 106 and Forest Service Rd 35N17X, ca. 2 miles NE of Trinity Mountain, ca. 23 miles NW of Redding. UTM coordinates X531229, Y4523541, zone 10. 1400 Comment
  RSA653316  Eriophyllum confertiflorum Beth Nelson 1991-5-5 013 San Bernardino San Bernardino National Forest. North of Fontana. 15 fry. N.E., exit Sierra Av. left, (Sierra Av. turns into Lytle Creek Rd.) continue 1.6 mi. Turn left on San Savaine Rd. Comment
  HSC33072  Eriophyllum lanatum Thomas W. Nelson, Jane P. Nelson 1974-5-10 1260 Mendocino E side of Hwy. 101 ca. 1 mi. N of its junction with Redwood Valley Rd. Comment
  HSC40042  Eriophyllum lanatum Thomas W. Nelson, Jane P. Nelson 1976-7-1 2895 Humboldt Along ridge N of Bear Creek 1463 Comment
  HSC68697  Eriophyllum lanatum Thomas W. Nelson, D. Gordon 1980-6-10 5570 Trinity Shasta-Trinity National Forest, along FS Rd. 1N05 at the copper mine along Copper Mine Hill 1463 Comment
  HSC69934  Eriophyllum lanatum Thomas W. Nelson, J. O. Sawyer 1978-6-9 4130 Trinity Red Mtn. 1250 Comment
  HSC70108  Eriophyllum lanatum Thomas W. Nelson, Jane P. Nelson 1978-6-22 4290 Trinity Along Dubakella Rd., 4.8 mi. from junction with Hwy. 36 1527 Comment
  HSC81546  Eriophyllum lanatum Thomas W. Nelson, Jane P. Nelson 1980-7-6 5997 Lassen Along Adin-Madelin Rd., 16 mi. E of Adin in Ash Valley 1555 Comment
  CHSC118637  Eriophyllum lanatum Julie Kierstead Nelson; Martin Lenz, Rhonda Posey, Brenna Montagne 2016-6-9 2016 -016 Siskiyou Lower Parks Creek watershed, E Klamath Range, along Forest Service Road 42N19, 3 miles northwest of Stewart Springs. UTM NAD 83 Zone 10, 539249m E, 4586866m N. 1478 Comment
  HSC37899  Eriophyllum lanatum var. achilleoides Thomas W. Nelson, J. P. Smith, Jane P. Nelson, James Nelson 1976-4-12 2300 Lake Beside Morgan Valley Rd. 7.8 mi. from Lower Lake Comment
  HSC39541  Eriophyllum lanatum var. achilleoides Thomas W. Nelson, James Nelson 1976-6-10 2669 Trinity At Senteney Rock 1524 Comment
  POM358028  Eriophyllum lanatum var. aphanactis Thomas W. Nelson, Jane P. Nelson 1977-7-1 3579 Humboldt Head of North Fork of Conley Creek, W side of road N from Alder Spring. 1463 Comment
  HSC33210  Eriophyllum lanatum var. grandiflorum Thomas W. Nelson, Jane P. Nelson 1974-5-27 1330 Mendocino Mendocino Pass, 4 mi. SE of the Eel River Campground Comment
  HSC38067  Eriophyllum lanatum var. grandiflorum Thomas W. Nelson, Jane P. Nelson 1976-5-10 2475 Butte S facing slope beside Hwy. 191, 1 mi. W of Paradise Comment
  HSC36377  Eriophyllum staechadifolium Thomas W. Nelson 1975-8-10 2240 Humboldt At Table Bluff Comment
  UC1543061  Eriophyllum staechadifolium Donald G. Nelson 1937-7-10 542 Marin on n sloping bank just w Point Reyes Lighthouse (above the bird rocks); Point Reyes Comment
  CHSC110639  Erodium botrys Julie Kierstead Nelson 2012-5-1 2012 -006 Shasta 5 mi. N of Shasta College, NE of Redding; floodplain of unnamed tributary to Stillwater Creek. 198 Comment
  SEINET9360230  Erodium moschatum John Nelson, Wnek, Richard 2000-3-5 20965 San Francisco San Franscisco, CA Comment
  HSC38053  Eryngium vaseyi Thomas W. Nelson, Jane P. Nelson 1976-5-9 2459 Butte Dry meadow at intersection of Palermo Rd. & Hwy 70, about 4 mi. S of Oroville Comment
  HSC81578  Erysimum capitatum Thomas W. Nelson, Jane P. Nelson 1980-7-17 6091 Siskiyou Along FS Rd. 17, 0.5 mi. N of summit at county line 2073 Comment
  HSC26262  Erysimum capitatum var. capitatum Thomas W. Nelson 1971-5-9 435 Trinity Beside Hwy. 36, beside Rattle Snake Creek Comment
  HSC26330  Erysimum capitatum var. capitatum Thomas W. Nelson 1971-4-24 386 Trinity Along New River Trail Comment
  HSC71146  Erysimum capitatum var. capitatum Thomas W. Nelson, Jane P. Nelson, J. P. Smith 1978-7-23 4475 Shasta Along the road to Bully Choop, 9 mi. from junction with County Rd. A16 Comment
  HSC71302  Erysimum capitatum var. capitatum Thomas W. Nelson, Jane P. Nelson 1979-4-12 4624 Colusa Along Stony Creek below Digger Pine Campground Comment
  HSC103456  Erysimum concinnum Thomas W. Nelson, Jane Nelson 1982-4-25 6804 Mendocino Along State Route 1, just north of Juan Creek. 46 Comment
  HSC103578  Erysimum concinnum Thomas W. Nelson, Jane Nelson 1982-4-25 6802 Mendocino At Russian Gulch 30 Comment
  HSC35043  Erysimum perenne Thomas W. Nelson, James Nelson 1974-6-17 1363 Placer Beside Hwy. 80 at its intersection with Blue Canyon Rd., 9 mi. W of the Placer-Nevada County line 1646 Comment
  CHSC35556  Erythranthe cardinalis Thomas W. Nelson; Jane P. Nelson 1977-7-1 3541 Trinity Along edge of Van Duzen River at Brown's Canyon. 670 Comment
  HSC39538  Erythronium californicum Thomas W. Nelson, Jane P. Nelson 1976-5-23 2550 Trinity E side of Black Lassic S side of branch off Shanty Creek 1524 Comment
  HSC103344  Erythronium citrinum var. roderickii Thomas W. Nelson, Susan Erwin 2006-5-5 9299 Siskiyou Along road from Sunflower Flat to Bear Creek Trailhead, 0.7 mi. from junction with State Route 3 on Forest Service Rd. 39N62 956 Comment
  HSC82623  Eschscholzia caespitosa Thomas W. Nelson 1979-4-10 4584 Placer Along W side of Sierra College Blvd. between I-80 and Douglas Blvd. Comment
  UCR159960  Eschscholzia caespitosa Beth Nelson 1991-5-5 024 San Bernardino San Gabriel Mtns., north of Fontana, I-15 NE, exit Sierra Ave left, 0.3 mile to Lytle Creek Road. Turn left, continue for 1.4 miles Comment
  HSC26901  Eschscholzia californica Thomas W. Nelson 1973-7-27 1103 Humboldt SW of the airstrip at Kneeland Comment
  HSC69824  Euphorbia crenulata Thomas W. Nelson 1978-5-27 4075 Trinity At Secret Gulch, 1 mi. NW of Three Forks of Mad River 884 Comment
  HSC28197  Euphorbia helioscopia Thomas W. Nelson 1973-4-25 799 Humboldt On H.S.U. campus, beside Forestry Dept. Greenhouse. Comment
  SEINET9325144  Euphorbia peplus John Nelson, Wnek, R. 2000-3-8 20951 Sonoma Near Safeway Grocery, S side of Main St/River Rd (=Hwy 116) in downtown Guerneville. AC Moore Herbarium (USCH) Univ of S. Carolina Comment
  SEINET9341850  Euphorbia peplus John Nelson, Wnek, R. 2000-3-5 20963 San Francisco Along street curb, w/ Erodium moschatum, Alcea rosea, Urtica dioica; N(W) side of Market St. at 15th and Sanchez; San Francisco. Alcea rosea, Erodium moschatum. Comment
  HSC34969  Eurybia radulina Thomas W. Nelson 1974-9-21 1721 Del Norte Patricks Creek Comment
  HSC96650  Euthamia occidentalis Thomas W. Nelson, Dick Brummitt, Barbara Ertter 2004-7-4 9282 Humboldt Trinity River Bar down stream from the mouth of Willow Creek 152 Comment
  HSC35971  Fallopia convolvulus Thomas W. Nelson, J. O. Sawyer 1975-9-25 2024 Humboldt Beside Hwy. 101 at 11th St. bridge Comment
  HSC71909  Festuca idahoensis Thomas W. Nelson, Jane P. Nelson 1980-6-22 5820 Shasta Shasta-Trinity National Forest, junction of FS Rd. 41 and FS Rd. 28N08 1220 Comment
  HSC81779  Festuca idahoensis Thomas W. Nelson, Jane P. Nelson 1980-6-16 5446 Trinity Shasta-Trinity National Forest, just N of Philpot Campground 793 Comment
  HSC40610  Festuca rubra Thomas W. Nelson, Jane P. Nelson 1976-7-26 3024 Trinity Trinity/Humboldt Co. line, along FS Rd. 1S07 W of Black Lassic 1616 Comment
  RSA273308  Festuca rubra Thomas W. Nelson, Jane Nelson 1976-7-26 3022 Trinity Trinity-Humboldt Co. lines. Road cut along 1S07 west of Black Lassic. 1616 Comment
  HSC81919  Festuca subulata Thomas W. Nelson, Jane P. Nelson 1979-7-3 4968 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  SEINET9346830  Foeniculum vulgare John Nelson, Wnek, Richard 2000-3-7 20943 Sonoma A large patch on N edge of Hwy 116 just W of Fern Grove cabins on W side of Guerneville. AC Moore Herbarium (USCH) Univ of S. Carolina Comment
  HSC45402  Fragaria vesca Thomas W. Nelson, Jane P. Nelson 1977-6-19 3510 Humboldt Alder Springs 1524 Comment
  UCD112550  Frangula californica R. E. Nelson 1948-9-20 76 Mendocino 1/2 mile south of Signal School. 335 Comment
  HSC69961  Frangula californica subsp. occidentalis Thomas W. Nelson 1978-6-14 4191 Del Norte Along French Hill Rd., 8.7 mi. from junction with Hwy. 199 Comment
  CAS-BOT-BC94092  Frangula purshiana Julie Kierstead Nelson 2006-5-10 2006 -007 Shasta Browns Creek & Chanchelulla Creek confluence, Forest Road 1,1 mile SW of Deerlick Springs. Chanchelulla Peak West 975 Comment
  JEPS121721  Frangula purshiana Julie Kierstead Nelson with Martin Lenz 2014-6-3 2011 -063 Shasta Claiborne Creek watershed, tributary to McCloud River ca. 8 miles north of Shasta Lake. Riparian forest at bridge over creek along Road 35N18. Comment
  UC33633  Frangula purshiana Ed. Nelson Dec 1898 Marin Olema Comment
  JEPS116616  Frangula rubra subsp. rubra Julie Kierstead Nelson with Rhonda Posey 2007-6-15 2007 -009 Siskiyou North side of Mt. Shasta, south Hwy 97, along Forest Service Rd. 42N73 Hotlum Fire area burned Feb 2006 ca. 4 mi NE town of Weed Mt. Shasta 1090 Comment
  UC1543183  Frankenia salina Donald G. Nelson 1935-6-27 331 Orange beaches s Corona del Mar (on bluffs facing ocean, near edge of salt marsh in ravine, s of mouth of Newport Bay) Comment
  HSC47729  Fraxinus dipetala Thomas W. Nelson, J. P. Smith, J. O. Sawyer 1978-5-6 4000 Shasta Along forest rd. to Beegum Gorge at Zachary Gulch Comment
  HSC38150  Fremontodendron californicum Thomas W. Nelson, J. P. Smith, Jane P. Nelson, James Nelson 1976-4-12 2347 Napa Along Morgan Valley Rd., 0.5 mi. from Lake Co. line Comment
  CHSC105876  Fritillaria Julie Kierstead Nelson 2010-4-5 2010 -002 Shasta Fenders Ferry Road at Salt Creek crossing; northeast of Shasta Lake. UTM 567241E, 4529448N. 475 Comment
  HSC47753  Fritillaria affinis Thomas W. Nelson, J. P. Smith 1978-5-6 3979 Trinity Along Philpot Creek at Philpot Campground 762 Comment
  HSC69911  Fritillaria affinis Thomas W. Nelson, Jane P. Nelson 1978-4-2 3874 Lake Along Walker Ridge Rd., 6 mi. N of junction with Hwy. 20 Comment
  HSC82043  Fritillaria affinis Thomas W. Nelson, James Nelson 1980-6-10 5439 Humboldt Along branch rd. off Swayback Ridge 4-wheel drive rd. 200 yds from junction 1433 Comment
  HSC71020  Fritillaria micrantha Thomas W. Nelson 1979-4-9 4567 Nevada Along Hwy. 49, 11 mi. N of Auburn Comment
  HSC33040  Fritillaria pluriflora Thomas W. Nelson, James Nelson 1975-3-26 1773 Lake 200 m E of the Oasis Resort 13 mi. E of Clear Lake Oaks on Hwy. 20 Comment
  HSC30177  Fritillaria purdyi Thomas W. Nelson 1974-5-7 1232 Humboldt Beside airstrip at Kneeland Prairie Comment
  HSC33036  Fritillaria purdyi Thomas W. Nelson, Jane P. Nelson 1974-5-26 1295 Glenn Just W of Telephone Camp, Mendocino National Forest 2104 Comment
  HSC33266  Fritillaria purdyi Thomas W. Nelson 1974-4-22 1230 Mendocino Eden Valley east of Eden Valley ranch, beside Toney Creek 640 Comment
  HSC32734  Fritillaria recurva Thomas W. Nelson, Jane P. Nelson 1973-4-24 780 Mendocino Beside jeep road to Roberts Lake, N of Eden Valley Ranch. Comment
  HSC47765  Fritillaria recurva Thomas W. Nelson, J. P. Smith 1978-5-6 3992 Trinity Blue Point 1555 Comment
  HSC71806  Fritillaria recurva Thomas W. Nelson, Jane P. Nelson 1980-6-27 5949 Humboldt Along low ridge NE of small vernal pond at N base of Red Lassic 1677 Comment
  OBI80352  Fumaria parviflora Kristen M. Nelson 2013-2-16 27 San Luis Obispo San Luis Obispo, on Long Street at Hind Lane. Vacant lot surrounded by commercial buildings. 40 Comment
  HSC70005  Galium ambiguum Thomas W. Nelson, Jane P. Nelson 1978-7-22 4450 Tehama Along road to Handy Camp Gulch, 0.25 mi. E of Wells Creek 1372 Comment
  HSC71844  Galium ambiguum Thomas W. Nelson, Jane P. Nelson 1980-6-22 5850 Tehama Shasta-Trinity National Forest, summit of Mt. Tedoc 1585 Comment
  JEPS120223  Galium ambiguum Julie Kierstead Nelson with Christy Wagner 2011-6-21 2011 -021 Trinity At end of Forest Rd. 29N81A, west of Bramlet Road (Forest Road 30N29) south of HIghway 36W; 13 miles south of Hayfork. Comment
  HSC32861  Galium aparine Thomas W. Nelson, James Nelson 1973-5-28 940 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC81605  Galium aparine Thomas W. Nelson, Jane P. Nelson 1980-5-25 5261 Humboldt Along road from Dinsmore to Anderson Crossing- McKeown Ranch Rd.- 0.5 mi. NW of McKeown house 823 Comment
  HSC37894  Galium aparine Thomas W. Nelson, J. P. Smith, Jane P. Nelson, James Nelson 1976-4-11 2294 Lake Beside Hwy. 20, 1 mi. W of Upper Lake Comment
  HSC40190  Galium bolanderi Thomas W. Nelson, Jane P. Nelson 1976-8-1 3152 Shasta Along Hwy. 44, 2 mi. E of Shingletown Comment
  HSC68861  Galium bolanderi Thomas W. Nelson, Jane P. Nelson 1980-6-22 5727 Trinity Shasta-Trinity National Forest, along Hwy. 36 on ridge between Salt Creek and Muldoon Gulch, 2.5 mi. W of junction with FS Rd. 30 1311 Comment
  HSC82012  Galium bolanderi Thomas W. Nelson, Jane P. Nelson 1979-6-15 4841 Trinity Mouth of Bear Creek 915 Comment
  HSC41599  Galium bolanderi Thomas W. Nelson, Jane P. Nelson 1977-8-6 3705 Humboldt Above Alder Springs 1555 Comment
  UC671978  Galium californicum subsp. californicum Evelyn Hart Nelson 1940-5-18 102 Santa Clara Loma Prieta Santa Cruz Mountains (fire trail) 1051 Comment
  JEPS123413  Galium glabrescens Julie Kierstead Nelson with Marie Buell 2015-7-15 2015 -083 Trinity Yolla Bolly Wilderness; near open ridgetop 1/4 mile SE of Black Rock. Comment
  HSC38059  Galium parisiense Thomas W. Nelson, Jane P. Nelson 1976-5-10 2466 Butte Beside SR 191 just N of its junction with SR 70 Comment
  HSC32672  Galium porrigens var. porrigens Thomas W. Nelson, Jane P. Nelson 1973-4-22 736 Mendocino Above the road to Eden Valley, 2 mi. E of the summit Comment
  HSC34701  Galium porrigens var. porrigens Thomas W. Nelson 1974-8-24 1702 Humboldt Weitchpec, under highway bridge over Klamath River Comment
  HSC35589  Galium porrigens var. porrigens Thomas W. Nelson 1974-4-22 1204 Marin Lake Nicascio Comment
  HSC82477  Galium serpenticum subsp. scotticum Thomas W. Nelson, Jane P. Nelson 1979-6-15 4797 Siskiyou Along road to Carmen Lake, 0.6 mi. from junction with State Route. 1646 Comment
  HSC41593  Galium triflorum Thomas W. Nelson, Jane P. Nelson 1977-7-4 3597 Humboldt N of pond above Alder Springs Comment
  HSC41594  Galium triflorum Thomas W. Nelson, Jane P. Nelson 1977-7-1 3554 Humboldt 1494 Comment
  HSC37838  Garrya buxifolia Thomas W. Nelson, Jane P. Nelson 1976-2-21 2246 Humboldt Beside the Hoopa-Redwood Valley Rd. ca. 5 mi. W of Hoopa Comment
  HSC38149  Garrya congdonii Thomas W. Nelson, J. P. Smith, Jane P. Nelson, James Nelson 1976-4-12 2346 Napa Along Morgan Valley Rd., 0.5 mi. from Lake Co. line Comment
  HSC82316  Garrya congdonii Thomas W. Nelson, Jane P. Nelson 1978-4-1 3844 Lake E side of Walker Ridge, 0.25 mi. N of junction with Hwy. 20 Comment
  CHSC24704  Garrya elliptica J. R. Nelson 1976-4-11 13 Mendocino 200 m nnw from base of hwy bridge on hwy 1, in Albion. 7 Comment
  HSC33216  Garrya elliptica Thomas W. Nelson 1974-4-22 1211 Marin N side of Mt. Tamalpais Comment
  HSC33149  Garrya fremontii Thomas W. Nelson, J. Cole, Brad Klipfel 1974-5-8 1247 Humboldt Horse Mtn. area, E of microwave tower 1220 Comment
  HSC37819  Garrya fremontii Thomas W. Nelson, Jane P. Nelson 1976-2-7 2260 Trinity Pigeon Point, above Trinity River Comment
  HSC40855  Garrya fremontii Thomas W. Nelson 1976-7-9 2992 Humboldt Ridge S of the E peak of the Lassic Peak (Signal peak) group. 1707 Comment
  RSA273408  Garrya fremontii Thomas W. Nelson, Jane P. Nelson 1976-6-10 2679 Trinity Above Senteney Rock. 1555 Comment
  HSC81927  Gaultheria shallon Thomas W. Nelson, Jane P. Nelson 1979-7-3 4952 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  HSC41646  Gayophytum heterozygum Thomas W. Nelson, Jane P. Nelson 1977-7-30 3655 Trinity Along headwaters of S Fork of Black Lassic Creek just SE of Red Lassic 1585 Comment
  HSC35929  Gayophytum humile Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-20 1974 Trinity Near S end of road out Swayback Ridge Comment
  HSC81905  Gayophytum humile Thomas W. Nelson 1979-7-11 4993 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  CAS-BOT-BC208036  Genista monspessulana Aven Nelson; Ruth A. Nelson 1933-5-15 580 Humboldt Redwood highway near Crescent City Comment
  CHSC32700  Gentiana calycosa Thomas Nelson; Jane Nelson 1977-7-30 3660 Trinity The Lassics. Bog along the north side of Mule Ridge. 1524 Comment
  JEPS97185  Gentiana calycosa Julie Kierstead Nelson with Maria Ulloa-Cruz 1995-8-22 95058 Siskiyou 1 1/2 mi W of The Eddys (on Parks Creek Road (Rd. 17); W slope of Parks Creek drainage); Shasta-Trinity National Forests, Mt. Shasta Ranger District 1737 Comment
  HSC22015  Gentiana sceptrum Thomas W. Nelson 1970-10-17 237 Humboldt Big Lagoon Comment
  UC880037  Gilia cana subsp. triceps Aven Nelson, Ruth A. Nelson 1939-4-2 3380 San Bernardino between Silurian Lake and Shoshone (State Highway 127); betw Silurian Lake Shoshone Comment
  HSC67204  Gilia capitata Thomas W. Nelson, Jane P. Nelson 1980-6-16 5455 Trinity Shasta-Trinity National Forest, just N of Philpot Campground 793 Comment
  HSC68667  Gilia capitata Thomas W. Nelson, Jane P. Nelson 1980-6-17 5537 Trinity Shasta-Trinity National Forest, along FS Rd. 1N12, 1.1 mi. from junction with FS Rd. 2N07 1006 Comment
  HSC68687  Gilia capitata Thomas W. Nelson, Jane P. Nelson 1980-6-18 5589 Trinity Shasta-Trinity National Forest, along FS Rd. 1N10, 1 mi. from junction with FS Rd. 2N07 1372 Comment
  HSC68888  Gilia capitata Thomas W. Nelson, Jane P. Nelson 1980-6-19 5661 Trinity Shasta-Trinity National Forest, along FS Rd. 29N59, 0.5 mi. E of junction with FS Rd. 30N29, Rattlesnake Ridge 1433 Comment
  HSC71294  Gilia capitata Thomas W. Nelson, Jane P. Nelson 1979-4-13 4632 Glenn Along FS Rd. 18N01 at junction with County Rd. Comment
  HSC37974  Gilia tricolor Thomas W. Nelson, J. P. Smith, Jane P. Nelson, James Nelson 1976-4-12 2321 Lake Along Morgan Valley Rd., 2 mi. W of Napa county line 732 Comment
  CAS-BOT-BC108926  Gilmania luteola Aven Nelson; Ruth A. Nelson 1939-4-4 3443 Inyo South of Furnace Creek Ranch, Death Valley. Comment
  HSC40385  Glyceria striata Thomas W. Nelson, James Nelson 1976-7-28 3078 Humboldt W of Alder Springs. 1524 Comment
  HSC82197  Gnaphalium palustre Thomas W. Nelson, Jane P. Nelson 1980-7-6 6052 Lassen Along Ash Creek at Ash Creek Campground 1494 Comment
  GH376512  Grayia spinosa A. Nelson & R. A. Nelson 1939-4-4 3427 Unknown Near Leadfield, on the California-Nevada line Comment
  UC1543105  Grindelia hirsutula Donald G. Nelson 1935-6-27 333 Orange on bluffs facing ocean beaches s Corona del Mar (s of mouth of Newport Bay) Comment
  UC1969779  Grindelia hirsutula Donald G. Nelson 1937-7-10 534 Marin Point Reyes, on north sloping bank just west of Pt. Reyes Lighthouse, and above the bird rocks. Comment
  HSC35987  Grindelia hirsutula Thomas W. Nelson, James Nelson 1975-8-20 2185 Merced Around Lake Yosemite Comment
  HSC41195  Hackelia bella Thomas W. Nelson, Jane P. Nelson 1977-7-1 3575 Trinity Along Mule Ridge 1555 Comment
  CAS-BOT-BC419705  Hackelia californica J. K. Nelson 2010-9-4 2010 -030 Siskiyou South slope of Mt. Shasta 1325 Comment
  CAS-BOT-BC7470  Harmonia doris-nilesiae T. W. Nelson; B. Williams 1983-6-14 7422 Trinity Along Forest Service road 1N40, 0.25 mil E of junction with road 1N35. 1097 Comment
  CHSC35539  Harmonia stebbinsii Thomas W. Nelson; Jane P. Nelson 1980-6-22 5746 Trinity Shasta-Trinity National Forest. Along road 29N28 7 miles south of junction with State Route 36 and 1 mile from Goat Camp. 1371 Comment
  JEPS120239  Harmonia stebbinsii Julie Kierstead Nelson with Talitha Derksen 2011-6-9 2011 -005 Shasta North slope of Middle Fork Beegum Creek, south of Hwy. 36, Road 28N07 past Seeliger Ranch, ca. 35 miles west-northwest of Red Bluff. Comment
  UC1484502  Harmonia stebbinsii Thomas W. Nelson and Jane P. Nelson 1978-6-23 4337 Trinity along Forest Service Rd. to Hell to Find Lake; Dubakella Mountain Quad; Dubakella Mt., along Forest Service Road to Hell to Find Lake, Trinity Co. 1158 Comment
  HSC81942  Hastingsia alba Thomas W. Nelson, Jane P. Nelson 1979-6-25 4878 Tehama Along road from Tedoc Gap to Wells Creek 0.5 miles from Tedoc Gap. 1646 Comment
  HSC70083  Hastingsia serpentinicola Thomas W. Nelson, Jane P. Nelson 1978-6-22 4262 Trinity Along old Hwy. 3, near junction with road to Philpot Campground 762 Comment
  HSC96649  Hastingsia serpentinicola Thomas W. Nelson, Sydney Carothers 2003-6-20 9161 Del Norte Along Wimer Rd., 19.3 mi. from junction with N Bank Rd. 755 Comment
  CHSC118632  Hastingsia serpentinicola Julie Kierstead Nelson; Martin Lenz, Rhonda Posey, Brenna Montagne 2016-6-9 2016 -007 Siskiyou Lower Parks Creek watershed, E Klamath Range; along Forest Service Road 42N19, 3 miles northwest of Stewart Springs; UTM NAD 83 Zone 10, 539582m E, 4586490m N. 1371 Comment
  HSC25943  Helenium puberulum Thomas W. Nelson 1970-10-31 293 Humboldt Eel River near N end of the Scotia Bluff. Comment
  HSC103526  Helianthella californica var. californica Thomas W. Nelson, Jane Nelson 1981-5-23 6493 Trinity Shasta-Trinity National Forest; along Forest Service Rd. 38N24, .5 mi. E of junction with State Route 3 854 Comment
  HSC103499  Helianthella californica var. shastensis Thomas W. Nelson, Jane Nelson 1985-6-19 Siskiyou In and about Scott Mountain Campground. 1646 Comment
  HSC103638  Helianthella californica var. shastensis Thomas W. Nelson, Jane Nelson 1985-6-19 7819 Siskiyou In and about Scott Mountain Campground. 1646 Comment
  HSC35849  Heliotropium curassavicum var. oculatum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-8-19 2162 Ventura Ventura Comment
  HSC33120  Hemizonella minima Thomas W. Nelson, Jane P. Nelson 1974-5-26 1298 Glenn Just W of Telephone Camp, Mendocino National Forest 2104 Comment
  HSC40031  Hemizonella minima Thomas W. Nelson, Jane P. Nelson 1976-6-22 2879 Humboldt On SW-facing slope at Goat Mtn. lookout 1666 Comment
  HSC44129  Hemizonella minima Thomas W. Nelson, Jane P. Nelson 1977-7-4 3608 Humboldt Along road N from Alder Spring 1555 Comment
  CAS-BOT-BC306104  Hemizonia congesta subsp. clevelandii Thomas W. Nelson; Jane P. Nelson 1980-6-26 5912 Mendocino North Coast Ranges. Along Forest Service road M-1 2.5 miles west of bridge over Black Butte River 701 Comment
  HSC103461  Hemizonia congesta subsp. clevelandii Thomas W. Nelson 2005-6-10 9362 Trinity Along Friday Ridge Road, 7 mi. from jct. with Hwy. 299, at jct. with Forest Service Rd. 6N33. 320 Comment
  POM360345  Hemizonia congesta subsp. luzulifolia Thomas W. Nelson, Jane P. Nelson 1978-8-12 4553 Trinity Along State Route 3, 2.5 miles E of junction with State Route 299. Comment
  CAS-BOT-BC309998  Hemizonia congesta subsp. tracyi Thomas Nelson; Jane Nelson; James Nelson 1975-6-21 1950 Humboldt Beside highway 36 ca. 5 mi. east of Bridgeville Comment
  CAS-BOT-BC310013  Hemizonia congesta subsp. tracyi Thomas W. Nelson; Jane P. Nelson 1980-6-26 5926 Trinity Along Covelo-Zenia Road ca. 1.5 miles south of Lake Mountain Ranch 822 Comment
  JEPS81074  Hemizonia congesta subsp. tracyi Thomas W. Nelson and Jane P. Nelson 1980-6-26 5926 Trinity ca. 1.5 mi s of Lake Mountain Ranch; Kettenpaum Quad. Covelo-Zenia Road 822 Comment
  RSA254780  Hemizonia tracyi Thomas W. Nelson 1973-5-28 967 Humboldt McKeown Ranch north of Dinsmore. Comment
  HSC38216  Hesperocyparis macnabiana Thomas W. Nelson, J. P. Smith, Jane P. Nelson, James Nelson 1976-4-12 2343 Napa Along Morgan Valley Rd., 0.5 mi. from Lake Co. line Comment
  HSC69912  Hesperocyparis macnabiana Thomas W. Nelson, Jane P. Nelson 1978-4-2 3875 Lake Along Walker Ridge Rd., 6 mi. N of junction with Hwy. 20 Comment
  HSC32718  Hesperocyparis sargentii Thomas W. Nelson, Jane P. Nelson 1973-4-24 785 Mendocino Beside jeep road to Roberts Lake, N of Eden Valley Ranch. Comment
  HSC103328  Hesperolinon disjunctum Thomas W. Nelson, Jane Nelson 1982-5-29 6953 Glenn Along Forest Service Rd. 18N30 to Black Diamond Mtn., 2.5 mi. from junction with county road north of Stonyford Comment
  HSC103533  Hesperolinon disjunctum Thomas W. Nelson, Jane Nelson 1986-5-25 8093 Colusa Along Forest Service Rd. 18N03, just west of Fouts Spring Campground 152 Comment
  HSC72230  Hesperolinon micranthum Thomas W. Nelson, Jane Nelson 1980-6-23 5860 Tehama Along Pettyjohn Rd., 0.5 mi. E of junction with road to Saddle Camp 915 Comment
  HSC25982  Heterotheca oregona var. rudis Thomas W. Nelson 1970-9-3 233 Humboldt Mad River. Comment
  HSC26902  Heterotheca oregona var. rudis Thomas W. Nelson 1973-7-28 1101 Humboldt Mad River at Blue Lake Comment
  HSC48057  Heuchera micrantha Thomas W. Nelson 1978-4-28 3892 Del Norte Above Hwy. 199, .5 mi. NE of Myrtle Creek. Comment
  HSC71159  Heuchera micrantha Thomas W. Nelson 1977-6-15 3423 Humboldt Along USFS Rd. 5N10 just N of its junction with USFS Rd. 6N08 1372 Comment
  HSC32557  Hieracium albiflorum Thomas W. Nelson 1973-7-10 1049 Trinity Along Mule Ridge SE of Red Lassic Comment
  UC671965  Hieracium albiflorum Evelyn Hart Nelson 1940-6-19 137 Santa Clara Loma Prieta Santa Cruz Mountains, Loma Prieta 981 Comment
  HSC40832  Hieracium albiflorum Thomas W. Nelson, James Nelson 1976-7-26 3030 Trinity Below 1S07 NE of Red Lassic 1677 Comment
  RSA258837  Hieracium albiflorum Thomas W. Nelson 1973-7-10 1044 Trinity Along Mule Ridge south-east of Red Lassic. Comment
  HSC103617  Hieracium horridum Thomas W. Nelson, Jane Nelson 1985-8-10 8020 Lassen Along west side of Silver Lake. 1829 Comment
  RSA653309  Hirschfeldia incana Beth Nelson 1991-4-20 3 San Bernardino San Bernardino National Forest. North of Fontana, 15 freeway, NE exit Sierra Ave. left, (Sierra Av. turns into Lytle Creek Rd.) continue 1.6 mi. Turn left on San Savaine Rd. Comment
  CAS-BOT-BC207511  Hoffmannseggia glauca Aven Nelson; Ruth Nelson 1939-3-30 3344 Riverside Hiway 70, between Mecca and Blythe Comment
  CAS-BOT-BC207559  Hoffmannseggia microphylla Aven Nelson; Ruth Nelson 1939-3-28 3310 Riverside In the road-side swales, between Mecca and Hidden Springs Comment
  UC1618008  Hoita macrostachya Donald G. Nelson 1940-8-7 698 Napa between Napa and Wooden Valley (n. slopes of George Mt. along Sarco Creek); George Mt., Sarco Creek 152 Comment
  UC671875  Hoita strobilina Evelyn Hart Nelson 1940-6-6 54 Santa Clara Loma Prieta Santa Cruz Mountains (spring) 975 Comment
  HSC35985  Holocarpha heermannii Thomas W. Nelson, Jane P. Nelson 1975-8-20 2183 Merced Around Lake Yosemite Comment
  HSC34737  Holodiscus discolor Thomas W. Nelson 1974-7-20 1678 Trinity Black Lassic Area 1799 Comment
  HSC40499  Holodiscus discolor Thomas W. Nelson, James Nelson 1976-7-26 3043 Humboldt E side of middle peak of Mount Lassic group, Signal Peak 1738 Comment
  HSC81976  Hordeum brachyantherum Thomas W. Nelson, Jane P. Nelson 1979-6-16 4863 Siskiyou Above Mule Creek, along Hwy. 3, 4.4 mi. N of Scott Mtn. Summit 1220 Comment
  HSC32843  Hordeum marinum subsp. gussoneanum Thomas W. Nelson, D. E. Anderson 1973-5-6 860 Mendocino Along Jeep-road to Roberts Lake N of Eden Valley 701 Comment
  HSC40323  Hordeum marinum subsp. gussoneanum Thomas W. Nelson, James Nelson 1976-6-22 2780 Trinity Below Senteney Rock 1433 Comment
  RSA254801  Hordeum marinum subsp. gussoneanum Thomas W. Nelson, D. E. Anderson 1973-3-6 860 Mendocino along jeep-road to Roberts Lake north of Eden Valley Ranch 701 Comment
  JEPS102926  Horkelia daucifolia Thomas W. Nelson and Jane P. Nelson 1983-7-29 7563 Trinity 2 mi from on FS rd 38N15 Ramshorn Creek Bridge 1158 Comment
  JEPS121710  Horkelia daucifolia var. daucifolia Julie Kierstead Nelson 2014-5-29 2011 -035 Siskiyou The Eddys, eastern Klamath Range, just off Parks Creek Road (42N17) in disturbed area near junction with 42N19, 7 miles west of the town of Weed. Comment
  HSC103463  Horkelia sericata Thomas W. Nelson, Jane Nelson 1988-6-29 8716 Del Norte Along French Hill Rd., 4 mi. from junction with State Route 199 549 Comment
  HSC69656  Horkelia sericata Thomas W. Nelson 1978-6-14 4167 Del Norte Along French Hill Rd., 2.4 mi. from junction with Hwy. 199 Comment
  HSC96009  Horkelia sericata Thomas W. Nelson, Sydney Carothers 2002-6-24 9107 Del Norte Along Holiday Rd. at mile post 4.2 at junction with Elk Camp Ridge Trail head 838 Comment
  RSA296747  Horkelia sericata Thomas W. Nelson 1978-6-14 4167 Del Norte Along French Hill road, 2.4 miles from jct. with St. Route 199. Comment
  JEPS102922  Horkelia tridentata subsp. flavescens Thomas W. Nelson and Jane P. Nelson 1983-7-29 7527 Siskiyou Scott Mountain Summit campground; Scott Mountain 1645 Comment
  JEPS102923  Horkelia tridentata subsp. flavescens Thomas W. Nelson and Jane P. Nelson 1987-6-11 8610 Humboldt 8.5 mi E of junction with SR 96 Big Hill Rd Comment
  HSC40602  Horkelia tridentata var. flavescens Thomas W. Nelson, James Nelson 1976-6-22 2821 Trinity Below Senteney Rock 1433 Comment
  HSC68734  Horkelia tridentata var. flavescens Thomas W. Nelson, Jane P. Nelson 1980-6-22 5752 Trinity Shasta-Trinity National Forest, along FS Rd. 29N28, 7 mi. S of junction with Hwy. 36, 1 mi. N of Goat Camp 1372 Comment
  HSC82020  Horkelia tridentata var. flavescens Thomas W. Nelson, James Nelson 1980-6-10 5397 Humboldt Along Swayback Ridge 4-wheel drive road, 1.25 mi. S of junction with Forest Service road. 1494 Comment
  HSC82525  Horkelia tridentata var. flavescens Thomas W. Nelson, Jane P. Nelson 1979-6-15 4829 Trinity Mouth of Bear Creek 915 Comment
  CAS-BOT-BC203390  Horsfordia newberryi Aven Nelson; Ruth Nelson 1939-3-25 3375 San Diego On the trail to the Palms, in Borego [Borrego] Desert State Park Comment
  HSC44374  Hosackia crassifolia Thomas W. Nelson, Jane P. Nelson 1977-7-4 3614 Humboldt Along road N of Alder Springs. 1524 Comment
  HSC96156  Hosackia crassifolia var. crassifolia Thomas W. Nelson, Jane P. Nelson 1987-6-11 8531 Humboldt Along F.S. Rd. 13N01, 18 mi. from junction with State Route 96 1067 Comment
  HSC44301  Hosackia oblongifolia var. oblongifolia Thomas W. Nelson, Jane P. Nelson 1977-7-30 3644 Trinity Along S side of ridge between the forks of Black Lassic Creek. 1646 Comment
  HSC36320  Hosackia oblongifolia var. oblongifolia Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-20 1913 Humboldt USFS Rd. 2S08 to Pine Mtn. Comment
  HSC40128  Hosackia oblongifolia var. oblongifolia Thomas W. Nelson, James Nelson 1976-7-28 3077 Humboldt Beside rd. to Pine Mtn. 1524 Comment
  HSC81896  Hosackia oblongifolia var. oblongifolia Thomas W. Nelson, Jane P. Nelson 1979-7-7 4975 Trinity Wet soil along Davis Creek, W side of Hwy. 3. 793 Comment
  HSC82527  Hypericum concinnum Thomas W. Nelson, Jane Nelson 1980-6-24 5883 Lake FS Rd. 17N16, 1.6 mi. E of Bear Creek Ranger Station 823 Comment
  UC1193381  Hypericum perforatum R. E. Nelson 1949-8-12 98 Mendocino 4 mi. n.w. Philo (both sides of hwy.); Quad. 46C3 213 Comment
  HSC26660  Hypochaeris glabra Thomas W. Nelson 1972-11-25 705 Placer Del Oro Rd. near Roseville Comment
  HSC38134  Hypochaeris glabra Thomas W. Nelson, J. P. Smith, Jane P. Nelson, James Nelson 1976-4-13 2357 Lake Along Bartlet Springs Rd., 0.6 mi. from its junction with Hwy. 20 Comment
  HSC39640  Hypochaeris glabra Thomas W. Nelson, Jane P. Nelson, James Nelson 1976-4-12 2307 Lake Beside Morgan Valley Rd., 7.8 mi. from Lower Lake 640 Comment
  RSA254791  Iris douglasiana Thomas W. Nelson 1974-5-7 1240 Humboldt Beside the old Kneeland Rd. Comment
  HSC32712  Iris macrosiphon Thomas W. Nelson, Jane P. Nelson 1973-4-24 777 Mendocino Beside jeep road to Roberts Lake N of Eden Valley Ranch Comment
  HSC32881  Iris macrosiphon Thomas W. Nelson, D. E. Anderson 1973-5-6 905 Mendocino Along the road to Eden Valley, W side of summit Comment
  HSC67356  Iris macrosiphon Thomas W. Nelson, Jane P. Nelson 1980-5-25 5304 Trinity Six Rivers National Forest, along E side of Red Mtn. 1159 Comment
  HSC69933  Iris macrosiphon Thomas W. Nelson, J. O. Sawyer 1978-6-9 4128 Trinity Red Mtn. 1250 Comment
  HSC36632  Iris macrosiphon Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1909 Trinity Junction of County Rd. and FS Rd. 1S07 Comment
  HSC44159  Iris purdyi Thomas W. Nelson, Jane P. Nelson 1977-6-19 3515 Humboldt SW of Alder Springs along Rd. 2S08 1463 Comment
  HSC82347  Iris purdyi Thomas W. Nelson, J. O. Sawyer 1977-5-1 3377 Mendocino Along Mail Ridge Rd., 10 mi. N of junction with Hwy. 101 Comment
  HSC34873  Iris purdyi Thomas W. Nelson, James Nelson 1975-5-5 1780 Humboldt Beside Hwy. 101, 4 mi. S of Salmon Creek bridge Comment
  HSC36790  Iris purdyi Thomas W. Nelson, James Nelson, Jane P. Nelson 1975-7-20 2052 Humboldt Beside FS Rd. 2S08 to Pine Mtn. Comment
  HSC33415  Iris tenuissima Thomas W. Nelson 1974-5-30 1347 Humboldt Along Hoopa-Redwood Valley Rd. Comment
  HSC35034  Iris tenuissima Thomas W. Nelson, James Nelson 1975-5-24 1856 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC69956  Iris tenuissima Thomas W. Nelson, Jane P. Nelson 1978-6-22 4299 Trinity Along branch road off Dubakella Rd. 2 mi. from junction with Red Mtn. Motorway, SW of S Dubakella. 1555 Comment
  SEINET3875940  Iris tenuissima Thomas Nelson, James Nelson 1973-5-28 935 Humboldt Mckeown Ranch north of Dinsmore.; 0 Comment
  HSC70960  Iris tenuissima Thomas W. Nelson 1977-6-15 3435 Humboldt Along FS Rd. 5N10 just N of junction with FS Rd. 6N01 1463 Comment
  HSC81880  Iris tenuissima Thomas W. Nelson, Dave Gordan 1980-5-7 5168 Trinity E side of Vista Lane, 5 mi. N of junction with Highland Dr., 3 mi. N of Hyampom Rd. 671 Comment
  HSC92757  Isolepis carinata Thomas W. Nelson, Jane P. Nelson 1982-4-24 6774 Mendocino 0.5 mi. S of Manchester, along W side of Hwy. 1 76 Comment
  UC500547  Isomeris arborea Aven Nelson 1930-3-1 11168 a Riverside n of Palm Springs Comment
  CAS-BOT-BC123376  Ivesia paniculata T. W. Nelson; J. P. Nelson 1980-7-6 5984 Lassen Ash Valley along Adin-Madeline Rd. 16 miles E of Adin. 1554 Comment
  JEPS87553  Juncus Thomas Nelson and Jane Nelson 1978-6-21 4215 Trinity 100 m abobe mouth of Indian Creek; Flood plainb of Trinity River 487 Comment
  CHSC105701  Juncus capitatus Julie Kierstead Nelson 2006-5-10 2006 -009 Shasta Floodplain of Stillwater Creek, Encanto Way, 8 miles NE of Redding. 182 Comment
  JEPS102928  Juncus capitatus Thomas W. Nelson and Jane P. Nelson 1982-4-24 6776 Mendocino 1/2 mi S of Manchester 76 Comment
  HSC71130  Juncus confusus Thomas W. Nelson, Jane P. Nelson, J. P. Smith 1978-7-24 4498 Siskiyou Along W side of Hwy. 3, just N of Scott Mtn. Summit 1616 Comment
  HSC44302  Juncus confusus Thomas W. Nelson 1976-7-9 3009 Humboldt S of Mtn. Lassic, (Signal Peak). 1707 Comment
  HSC69992  Juncus dudleyi Thomas W. Nelson, Jane Nelson 1978-6-21 4211 Trinity Along Trinity River flood plain, 100 m above the mouth of Indian Creek. 488 Comment
  HSC34710  Juncus effusus subsp. pacificus Thomas W. Nelson 1974-7-20 1695 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC99805  Juncus effusus subsp. pacificus Thomas W. Nelson 1975-9-24 2202 Humboldt Beside Indianola Rd., 0.5 mi. E of junction with Hwy. 101 Comment
  HSC82406  Juncus ensifolius Thomas W. Nelson, Jane Nelson 1979-6-14 4755 Trinity Along Trinity River and old Hwy. 3, N of Eagle Creek Campground 823 Comment
  HSC44316  Juncus ensifolius Thomas W. Nelson, Jane Nelson 1977-9-3 3733 Humboldt Logging road to Pine Mtn., E of Pine Mtn. 1463 Comment
  HSC40186  Juncus nevadensis Thomas W. Nelson, Jane Nelson 1976-8-1 3144 Shasta Lassen Volcanic National Park, along Kings Creek at lower end of Kings Creek Meadow Comment
  HSC82380  Juncus nevadensis var. nevadensis Thomas W. Nelson, Jane Nelson, J. P. Smith 1978-7-24 4534 Siskiyou Siskiyou-Trinity County line, head of Scott Mtn. Creek, S of Forest Service campground 1646 Comment
  CHSC24161  Juniperus californica J. R. Nelson 1976-3-6 15 Tehama 7 mi w of Paskenta on Covelo Rd. 304 Comment
  UC1543056  Juniperus californica Donald G. Nelson 1936-5-22 400 Riverside near base Santa Rosa Mountains (Ribbon Wood Camp, Pines to Palms Highway, on trail down to stream in Palm Springs Canyon, along trail to Palm Canyon from Ribbon Wood Camp) Comment
  RSA258849  Juniperus occidentalis var. occidentalis Thomas W. Nelson, Jane P. Nelson 1974-4-8 1141 Lake ca. 200 m. east of Oasis Resort 13 mi. east of Clear Lake Oaks along Hwy 20. Comment
  UC724194  Juniperus osteosperma Aven and Ruth Nelson 1939-4-1 3377 San Bernardino between Goffs and Ivanpah; New York Mts. Comment
  UC700978  Justicia californica Aven and Ruth Nelson 1939-3-22 3219 Riverside Palm Springs Comment
  HSC82411  Kalmia polifolia Thomas W. Nelson 1979-7-11 5018 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC33274  Keckiella corymbosa Thomas W. Nelson 1973-8-19 1107 Trinity Black Lassic area 1799 Comment
  HSC40145  Keckiella corymbosa Thomas W. Nelson, James Nelson 1976-10-25 3274 Trinity Along W side of Red Lassic 1707 Comment
  HSC36460  Keckiella lemmonii Thomas W. Nelson, B. Reinhardt 1975-7-30 2108 Humboldt Beside Rd. out Whiting Ridge Comment
  HSC36802  Kelloggia galioides Thomas W. Nelson 1975-7-20 2065 Trinity Black Lassic area, E side 1799 Comment
  HSC97687  Kelloggia galioides Thomas W. Nelson, Jane Nelson 2006-7-1 9446 Siskiyou Along FS Rd. 4319, Military Pass Rd., the Whaleback 1392 Comment
  HSC69688  Koeleria macrantha Thomas W. Nelson 1978-6-9 4108 Trinity Along Forest Rd. 27N02, ca. 1.5 mi. S of Jct. with county road at Three Forks of Mad River. Comment
  CAS-BOT-BC43761  Krameria erecta Aven Nelson; Ruth A. Nelson 1939-3-25 3249 a San Diego Borago Desert Comment
  CHSC78093  Kumlienia hystricula Terry Nelson 1998-4-18 240 -4 Shasta Near Ash Creek 7 mi ne of Cottonwood. 1 mi e of the Sacramento River and 30 yds. s of Ash Creek. 131 Comment
  HSC41117  Lagophylla ramosissima Thomas W. Nelson, Jane P. Nelson, James Nelson 1976-8-29 3251 Modoc Modoc National Forest: along Hwy. 299 just NW of Adin Pass 1524 Comment
  UCD133628  Lagophylla ramosissima Lori R. Nelson 1976-1 10 Solano open level area on Putah Creek road, 3.6 miles southwest of Winters. Comment
  HSC26842  Lamium amplexicaule Thomas W. Nelson 1971-1-8 323 Humboldt Ferndale next to Co. Fair Grounds Comment
  UC700954  Langloisia setosissima subsp. setosissima Aven and Ruth Nelson 1939-3-29 3323 Riverside ner the Palm grove Hidden Springs Comment
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Apr 17 2011
  UC724320  Langloisia setosissima subsp. setosissima Aven and Ruth Nelson 1939-3-29 3323 Riverside ner the Palm grove Hidden Springs Comment
  HSC82242  Lasthenia californica Thomas W. Nelson 1979-4-10 4588 Placer Along W side of Sierra College Blvd. between I-80 and Douglas Blvd. Comment
  CAS-BOT-BC123327  Lathyrus biflorus T. W. Nelson; James L. Nelson 1980-6-10 5432 Humboldt Blocksburg Quadrangle. NE slope of Red Mountain. 1371 Comment
  HSC87151  Lathyrus biflorus Thomas W. Nelson, James Nelson 1980-6-10 5432 Humboldt NE slope of Red Mtn. 1372 Comment
  HSC69723  Lathyrus delnorticus Thomas W. Nelson 1978-6-14 4172 Del Norte Along French Hill Road, 8.7 miles from jct. with Hwy 199. Comment
  SFV18610  Lathyrus delnorticus T. W. Nelson, J. P. Nelson 1987-5-24 8493 Del Norte Along road 305 (Low Divide Road), 6.5 miles north of junction with North Bank Road. 640 Comment
  HSC103339  Lathyrus lanszwertii var. tracyi Thomas W. Nelson, Jane Nelson 1982-5-15 6837 Trinity In and about Big Bar Campground 457 Comment
  HSC48069  Lathyrus littoralis Thomas W. Nelson 1978-4-23 3878 Humboldt NW of Samoa Comment
  CHSC860  Lathyrus nevadensis L. Nelson 1935-4-27 Butte Deer Creek Canyon. 914 Comment
  HSC97088  Lathyrus polyphyllus Thomas W. Nelson, Sydney Carothers 2006-5-19 9405 Trinity Along Forest Service Rd. On wet road cut. 21 miles from junction with State Rte. 36. 1102 Comment
  JEPS120187  Lathyrus polyphyllus Julie Kierstead Nelson 2011-6-16 2011 -10 Trinity Highway 36W intersection with Wildwood Road. Comment
  CHSC862  Lathyrus splendens L. Nelson 1935-4-17 San Diego Cuyamaca pass. 1524 Comment
  HSC26250  Lathyrus vestitus subsp. bolanderi Thomas W. Nelson 1972-11-2 700 Humboldt Hwy. 36, 5 mi. W of Dinsmore. Comment
  HSC103337  Lathyrus vestitus var. ochropetalus Thomas W. Nelson, Jane Nelson 1983-6-12 7413 Humboldt Along Kneeland Rd., ~ .5 mi. SE of junction with Maple Creek Rd. 671 Comment
  HSC103356  Lathyrus vestitus var. vestitus Thomas W. Nelson, Jane Nelson 1981-4-16 6419 Colusa Along Bartlet Springs-Bear Valley Rd., ~ 100 yds. from Bear Valley 610 Comment
  CAS-BOT-BC323260  Layia chrysanthemoides Thomas W. Nelson; Jane P. Nelson 1980-5-3 5125 Sonoma Along Roberts Rd ca 100 m past bridge over Copeland Creek, E of Rhonert Park 60 Comment
  HSC33192  Layia chrysanthemoides Thomas W. Nelson 1974-4-21 1191 Mendocino Hills W of Eden Valley Ranch Comment
  HSC32733  Layia chrysanthemoides Thomas W. Nelson, Jane P. Nelson 1973-4-23 761 Mendocino E of Eden Valley Ranch along Toney Creek 640 Comment
  HSC82231  Layia fremontii Thomas W. Nelson 1979-4-10 4591 Placer Along W side of Sierra College Blvd. between I-80 and Douglas Blvd. Comment
  RSA258847  Layia septentrionalis Thomas W. Nelson, Nelson 1974-4-9 1164 Lake Along Hwy 20 between Lucerne and Clear Lake Oaks Comment
  JEPS117866  Ledum glandulosum Julie Kierstead Nelson 2006-11-8 2006 -44 Shasta Bully Hill Mine, north side of Shasta Lake at confluence of Squaw Creek and Pit River arms 365 Comment
  UC671997  Lepechinia calycina Evelyn Hart Nelson 1939-7-29 10 Santa Clara Loma Prieta, Santa Cruz Mountains 1160 Comment
  HSC33424  Lepidium campestre Thomas W. Nelson, James Nelson 1974-6-17 1376 Placer Dollar Point overlooking Lake Tahoe, N of Tahoe City 1585 Comment
  CHSC110641  Lepidium campestre Julie Kierstead Nelson; Wendy Boes 2012-8-2 2012 -072 Trinity South Fork Mountain ca 4 miles N of Hwy. 36; vernally wet spot by main ridge road 4N12; where cows congregate. 1493 Comment
  HSC26268  Lepidium campestre Thomas W. Nelson 1971-5-31 446 Humboldt Beside Hwy. 36 at Dinsmore Comment
  CAS-BOT-BC89285  Lepidium flavum Aven Nelson; Ruth A. Nelson 1939-4-2 3379 Inyo Near Shoshone. Comment
  CAS-BOT-BC89348  Lepidium fremontii Aven Nelson; Ruth Nelson 1939-4-2 3388 Unknown Near Shoshone. Comment
  UC724142  Lepidium fremontii Aven and Ruth Nelson 1939-4-2 3388 San Bernardino near Shoshone Comment
  CAS-BOT-BC89347  Lepidium fremontii Aven Nelson; Ruth Nelson 1939-4-1 3371 Unknown Roadsides between Blythe and Needles. Comment
  NY76390  Lepidium fremontii A. Nelson 1939-4-1 3371 Unknown Roadsides between Blythe and Needles Comment
  HSC82335  Lepidium lasiocarpum Thomas W. Nelson, J. O. Sawyer 1977-5-1 3361 Mendocino Along Mail Ridge Rd., 10 mi. N of junction with Hwy. 101 Comment
  HSC82615  Lepidium lasiocarpum Thomas W. Nelson, Jane P. Nelson 1979-4-11 4606 Placer Along N side of Douglas Blvd., 1 mi. S of junction with I-80 Comment
  CHSC110514  Lepidium nitidum Julie Kierstead Nelson 2012-4-17 2012 -001 Shasta Clear Creek Gorrge near overlook picnic area; ca. 5 miles SW of Redding. 167 Comment
  HSC35843  Lepidospartum squamatum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-8-19 2169 Ventura Between Hwy. 126 E of Santa Paula. Comment
  CHSC32808  Leptosiphon aureus P. D. Nelson 1979-4-7 San Bernardino Ca 5 mi s of Kelso. Ca 1/2 mi e of sand dunes. Comment
  HSC71033  Leptosiphon bicolor Thomas W. Nelson 1977-4-20 3325 Humboldt Along FS Rd. 1N15 at bridge over Mad River 762 Comment
  HSC71061  Leptosiphon bicolor Thomas W. Nelson, Jane P. Nelson 1980-5-30 3395 Humboldt McKeown Ranch along rd. to Anderson's Ford 854 Comment
  POM364704  Leptosiphon bolanderi Thomas W. Nelson 1978-5-27 4057 Trinity Along trail to Red Mtn. 1220 Comment
  UCD55170  Leptosiphon bolanderi Thomas W. Nelson; Jane P. Nelson 1980-5-25 5332 Trinity Along Covelo-Zenia Road; ca. 1.5 miles south of Lake Mountain Ranch. 822 Comment
  RSA254803  Leptosiphon bolanderi Thomas W. Nelson, Donald Anderson 1973-5-5 874 Mendocino North of Eden Valley Ranch overlooking Eden Creek along jeep-road to Roberts Lake. 640 Comment
  HSC34896  Leptosiphon filipes Thomas W. Nelson 1975-5-17 1827 Trinity Panwauket Gulch Comment
  RSA254815  Leptosiphon latisectus Thomas W. Nelson, Donald Anderson 1973-5-6 895 Mendocino Along the road to Eden Valley, west side of summit Comment
  RSA293140  Leptosiphon pygmaeus subsp. pygmaeus Thomas W. Nelson, Jane P. Nelson 1980-5-25 5332 Trinity Along Covelo-Zenia Road, 1.5 miles south of Lake Mountain Ranch. 823 Comment
  HSC26261  Leptosiphon rattanii Thomas W. Nelson 1971-5-9 434 Trinity Beside Rattlesnake Creek at Forest Glenn Comment
  SEINET9329601  Leptospermum laevigatum John Nelson, Wnek, Richard 2000-3-8 San Francisco Baker Beach, San Francisco Comment
  UC1287412  Lessingia glandulifera var. glandulifera A. P. Nelson, D. Kaplan 1960-8-13 666 Riverside 1 mi s of Idyllwild; Toll Gate Road Comment
  UC467005  Lessingia glandulifera var. glandulifera Aven Nelson 1922-11-11 9989 San Bernardino se Mojave Comment
  JEPS106459  Lessingia nemaclada J. K. Nelson with Kathy Valenzuela, Cheryl Bales, and Cheryl Adcock 2004-9-1 2004 -112 Shasta W end Pit 7 Dam, Pit River, ca. 30 mi ENE of Redding 335 Comment
  HSC82366  Leucothoe davisiae Thomas W. Nelson, Jane P. Nelson 1978-7-24 4488 Trinity Along road to Bully Choop, 100 m N of junction with road to lookout 1768 Comment
  HSC39615  Lewisia nevadensis Thomas W. Nelson, Jane P. Nelson 1976-6-15 2719 Humboldt Along old trail from lookout to Blocksburg 1585 Comment
  HSC81751  Ligusticum californicum Thomas W. Nelson, Jane P. Nelson 1980-7-20 6188 Siskiyou Above and to SE of Big Carmen Lake 1738 Comment
  RSA259542  Lilium columbianum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2032 Humboldt Bald Hills Road just east of Redwood National Park Comment
  HSC27066  Lilium kelleyanum Thomas W. Nelson 1973-7-14 1081 Trinity Beside Deadfall Creek, just west of head of trail to Deadfall Lake Comment
  HSC82360  Lilium kelleyanum Thomas W. Nelson, Jane P. Nelson, J. P. Smith 1978-7-24 4518 Siskiyou Siskiyou-Trinity County line, head of Scott Mtn. Creek, S of Forest Service campground 1646 Comment
  HSC35594  Lilium kelloggii Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2005 Humboldt French Camp, Bald Hills. Comment
  HSC32665  Lilium pardalinum subsp. pardalinum Thomas W. Nelson 1973-7-10 1015 Trinity Black Lassic Area 1799 Comment
  HSC45246  Lilium pardalinum subsp. pardalinum Thomas W. Nelson, Jane P. Nelson 1977-7-30 3671 Trinity Along the N side of Mule Ridge 1524 Comment
  HSC81969  Lilium pardalinum subsp. pardalinum Thomas W. Nelson, Jane P. Nelson 1979-6-25 4898 Tehama Along Post Creek just upstream from Forest Service road 1372 Comment
  HSC26256  Limnanthes douglasii Thomas W. Nelson 1971-5-9 441 Trinity Forest Glenn Comment
  HSC40628  Limnanthes douglasii subsp. nivea Thomas W. Nelson, James Nelson 1976-6-22 2822 Trinity Below Senteney Rock 1433 Comment
  HSC33201  Limnanthes douglasii subsp. nivea Thomas W. Nelson 1974-4-22 1207 Marin Lake Nicascio Comment
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Jun 29 2013
  HSC81595  Limnanthes floccosa Thomas W. Nelson, Dave Gordan 1980-5-7 5163 Trinity E side of Vista Lane, 5 mi. N of junction with Highland Dr., 3 mi. N of Hyampom Rd. 671 Comment
  UC1925900  Linanthus ciliatus Donald G. Nelson 1937-4-29 517 Contra Costa Road from Pinole S towards Alhambra Road. Comment
  GH91311  Linanthus nuttallii subsp. howellii T. W. Nelson & J. P. Nelson 1980-6-22 5847 Unknown 1.5 miles north of Tedoc Gap along forest service road 45, west side of Mount Tedoc, Yolla Bolly Quad., T28N, R9W, Sec. 28, 1500 m. Comment
  HSC79473  Linanthus nuttallii subsp. howellii Thomas W. Nelson, Jane Nelson 1980-6-22 5847 Tehama 1.5 mi. N of Tedoc Gap along FS Rd. 45, W side of Mt. Tedoc 1500 Comment
  RSA293190  Lithocarpus densiflorus var. densiflorus Thomas W. Nelson, Jane P. Nelson 1978-2-5 3760 Humboldt Kneeland, east side of junction of Kneeland & Maple Creek roads. 671 Comment
  JEPS81057  Lithocarpus densiflorus var. echinoides Thomas Nelson, Jane Nelson and J. P. Smith 1978-7-23 4468 Shasta 12 mi from road to Bully Choop junction with County Road A16 (along road to Bully Choop); Weaverville Quad. Comment
  HSC40622  Lithophragma campanulatum Thomas W. Nelson, James Nelson 1976-6-22 2837 Trinity Below Senteney Rock 1494 Comment
  HSC45398  Lithophragma campanulatum Thomas W. Nelson, Jane Nelson 1977-6-19 3476 Trinity Along Rd. 5E27 1463 Comment
  HSC82068  Lithophragma parviflorum Thomas W. Nelson, Jane P. Nelson 1980-4-27 5118 Mendocino At mile post 55.38 along old Hwy. 101 N of Willits Comment
  CHSC105872  Lithospermum ruderale Julie Kierstead Nelson 2008-7-12 2008 -005 Siskiyou South slope of Mt. Shasta in mixed conifer-black oak forest. 1325 Comment
  HSC82205  Lithospermum ruderale Thomas W. Nelson, Jane P. Nelson 1980-7-5 5970 Siskiyou Fowler's Campground 1006 Comment
  RSA653310  Lobularia maritima Beth Nelson 1991-4-20 11 San Bernardino North of Rancho Cucamonga. 10 fry. E. Exit Haven Av. left, to Highland Av. left. to Etiwanda Av. Take dirt road 0.8 miles N. Comment
  HSC69939  Logfia filaginoides Thomas W. Nelson 1978-5-27 4058 Trinity Along trail to Red Mountain. 122 Comment
  HSC48048  Logfia gallica Thomas W. Nelson, Jane P. Nelson 1978-4-28 3921 Mendocino SW side of Lake Mendocino Comment
  CHSC118451  Lomatium Julie Kierstead Nelson; Martin Lenz, Rhonda Posey, Brenna Montagne 2016-6-9 2016 -031 Siskiyou Lower Parks Creek watershed, E Klamath Range; along Forest Service Road 42N19, 4 miles northwest of Stewart Springs. UTM NAD 83 Zone 10, 539279m E, 4587169m N. 1506 Comment
  HSC39418  Lomatium californicum Thomas W. Nelson, James Nelson 1976-6-10 2683 Trinity Ridge above Senteney Rock 1555 Comment
  RSA254839  Lomatium caruifolium Thomas W. Nelson, Jane Nelson 1974-5-10 1261 Mendocino Beside Highway 101 ca. 1 mile north of the Mendocino-Sonoma county line Comment
  HSC67421  Lomatium caruifolium var. denticulatum Thomas W. Nelson, Jane P. Nelson 1980-5-25 5323 Trinity Along Covelo-Zenia Rd., 1.5 mi. S of Lake Mtn. Ranch. 823 Comment
  HSC39020  Lomatium ciliolatum var. ciliolatum Thomas W. Nelson, Jane P. Nelson 1976-5-23 2553 Trinity Just NW of Black Lassic 1631 Comment
  HSC39043  Lomatium ciliolatum var. ciliolatum Thomas W. Nelson, Jane P. Nelson 1976-5-31 2657 Humboldt County line, S of meadow along 5E27 just N of its junction with 1S07 1524 Comment
  HSC71843  Lomatium ciliolatum var. ciliolatum Thomas W. Nelson, Jane P. Nelson 1980-6-27 5964 Trinity Ridge extending SW from Black Lassic 1677 Comment
  JEPS116625  Lomatium ciliolatum var. ciliolatum Julie Kierstead Nelson with Susan Erwin, Brad Rust 2007-3-28 2007 -004 Trinity Oregon Mountain, 1 mile west of Weaverville Weaverville 700 Comment
  HSC103543  Lomatium ciliolatum var. hooveri Thomas W. Nelson, Jane Nelson 1981-4-15 6407 Lake Barrel Springs Campground 732 Comment
  UC1258130  Lomatium congdonii Thomas Nelson and Jane Nelson 1979-4-7 4566 Mendocino South of BLM road to Red Mountain, across School Section Creek from end of road. Comment
  CHSC118448  Lomatium dasycarpum Julie Kierstead Nelson 2015-4-20 Shasta Millville Plains, east of Redding; UTM NAD 83 Zone 10, 567236m E, 4481346m N; south end of Millville Plains Rd. at intersection with Nobles Trail Rd. 143 Comment
  HSC32461  Lomatium dasycarpum subsp. dasycarpum Thomas W. Nelson, D. E. Anderson 1973-5-5 878 Mendocino N of Eden Valley Ranch overlooking Eden Creek along jeep road to Roberts Lake. 640 Comment
  HSC38046  Lomatium dasycarpum subsp. dasycarpum Thomas W. Nelson, Alan Goes 1976-5-23 2581 Mendocino Along road to Little Red Mtn. 823 Comment
  HSC59767  Lomatium dasycarpum subsp. dasycarpum Thomas W. Nelson 1978-5-17 4022 Mendocino Along B.L.M. road to Red Mountain area Comment
  HSC69675  Lomatium dasycarpum subsp. dasycarpum Thomas W. Nelson, J. O. Sawyer 1978-6-9 4145 Trinity Red Mtn. 1250 Comment
  HSC35700  Lomatium dasycarpum subsp. dasycarpum Thomas W. Nelson, B. Reinhardt 1975-7-30 2107 Humboldt Above the road out Whiting Ridge Comment
  HSC67318  Lomatium dasycarpum subsp. dasycarpum Thomas W. Nelson, Jane P. Nelson 1980-5-7 5188 Trinity Shasta-Trinity National Forest, along FS Rd. 29N58, Rattlesnake Ridge, at junction with FS Rd. 30N29 1341 Comment
  HSC67339  Lomatium dasycarpum subsp. dasycarpum Thomas W. Nelson, Jane P. Nelson 1980-5-25 5329 Trinity Along Covelo-Zenia Rd., 1.5 mi. S of Lake Mtn. Ranch. 823 Comment
  RSA254837  Lomatium dasycarpum subsp. dasycarpum Thomas W. Nelson 1973-5-5 878 Mendocino North of Eden Valley Ranch overlooking Eden Creek along jeep-road to Roberts Lake. 640 Comment
  HSC34919  Lomatium dissectum var. dissectum Thomas W. Nelson, James Nelson 1975-5-24 1855 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC38036  Lomatium engelmannii Thomas W. Nelson, Alan Goes 1976-5-23 2571 Mendocino Along road to Little Red Mtn. 823 Comment
  HSC38273  Lomatium engelmannii Thomas W. Nelson, Alan Goes 1976-5-3 2394 Mendocino E side of Red Mtn. 1159 Comment
  HSC39456  Lomatium engelmannii Thomas W. Nelson, Alan Goes, James Nelson 1976-5-4 2427 Mendocino S end of BLM Rd. to School Section Creek just above creek 854 Comment
  RSA273377  Lomatium hooveri Thomas W. Nelson, J. P. Smith, J. Nelson 1976-4-12 2328 Lake Along Morgan Valley Road 732 Comment
  HSC69649  Lomatium howellii Thomas W. Nelson 1978-6-14 4155 Del Norte Along French Hill Rd., 2.4 mi. from junction with Hwy. 199 Comment
  HSC39594  Lomatium macrocarpum Thomas W. Nelson, James Nelson 1976-6-22 2814 Trinity Above Senteney Rock 1524 Comment
  HSC103572  Lomatium macrocarpum Thomas W. Nelson, Jane Nelson 1985-5-24 7785 Mendocino Along State Route 20, ~ 1.5 miles W of junction with U.S. 101; west of Willits 457 Comment
  HSC33054  Lomatium macrocarpum Thomas W. Nelson 1974-5-7 1233 Humboldt Beside airstrip at Kneeland Prairie Comment
  HSC33258  Lomatium macrocarpum Thomas W. Nelson 1973-7-10 1039 Trinity Along Mule Ridge SE of Red Lassic Comment
  HSC35930  Lomatium macrocarpum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-20 1976 Trinity Near S end of road out Swayback Ridge Comment
  HSC38126  Lomatium macrocarpum Thomas W. Nelson, Jane P. Nelson 1976-5-23 2512 Trinity Brown's Canyon Campground Comment
  HSC67194  Lomatium macrocarpum Thomas W. Nelson, James Nelson 1980-6-10 5419 Humboldt Along road to Red Mtn., 0.5 mi. W of junction with Swayback Ridge Rd. 1372 Comment
  JEPS116613  Lomatium macrocarpum Julie Kierstead Nelson with Rhonda Posey 2007-6-15 2007 -010 Siskiyou North side of Mt. Shasta, south of Hwy 97, along Forest Service Rd. 42N73, 4 miles NE of town of Weed Mt. Shasta 1090 Comment
  HSC34905  Lomatium marginatum var. purpureum Thomas W. Nelson, James Nelson 1975-5-5 1797 Lake Beside Hwy. 29, 2 mi. N of Middletown Comment
  HSC67267  Lomatium tracyi Thomas W. Nelson, D. Gordon 1980-5-8 5233 Trinity Along FS Rd. 1N10, 1 mi. from junction with FS Rd. 2N07 1372 Comment
  HSC67326  Lomatium tracyi Thomas W. Nelson, Jane P. Nelson 1980-5-8 5215 Trinity Shasta-Trinity National Forest, Friend Mtn. along FS Rd. 2N15 1372 Comment
  HSC71849  Lomatium tracyi Thomas W. Nelson, Jane P. Nelson 1980-6-22 5844 Shasta Along FS road 1 mi. W of Regan Meadow 1524 Comment
  HSC71891  Lomatium tracyi Thomas W. Nelson, Jane Nelson 1980-6-22 5775 Trinity Shasta-Trinity National Forest, along Rd. 29N73, 0.9 mi. from Red Mountain. 1677 Comment
  RSA293111  Lomatium tracyi Thomas W. Nelson, Nelson 1980-5-8 5215 Trinity Shasta-Trinity National Forest: Friend Mountain along road. 1372 Comment
  SEINET13944727 Image available Lomatium tracyi Thomas W. Nelson 1980-1 5346 Trinity Ironside Mountain Quad., Shasta-Trinity National Forest. Along road 60 (Underwood Mountain Road) 6.6 miles S of junction with State Route 299, alt. 3500 ft. T5N R6E SEC35. 1067 Comment
  HSC48093  Lomatium triternatum Thomas W. Nelson, Jennifer Whipple 1978-4-28 3906 Del Norte French Hill Rd. Comment
  HSC69968  Lomatium triternatum Thomas W. Nelson 1978-6-14 4184 Del Norte Along French Hill Rd., 8.7 mi. from junction with Hwy. 199 Comment
  HSC70151  Lomatium triternatum Thomas W. Nelson, Jane P. Nelson 1978-6-21 4243 Trinity Along Hwy. 3 at Hayfork Summit 1062 Comment
  HSC34845  Lomatium triternatum var. triternatum Thomas W. Nelson 1975-5-17 1815 Trinity Across the Trinity River from Douglas City Comment
  HSC32917  Lomatium utriculatum Thomas W. Nelson, James Nelson 1973-5-28 965 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC38280  Lomatium utriculatum Thomas W. Nelson, Jane P. Nelson 1976-5-10 2482 Butte S facing slope beside Hwy. 191, 1 mi. W of Paradise Comment
  HSC33237  Lomatium utriculatum Thomas W. Nelson, Jane P. Nelson 1974-5-25 1272 Mendocino Road from Longvale to Covelo at the mouth of Bloody Run Creek Comment
  HSC35640  Lomatium utriculatum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-21 1937 Trinity Dry meadow S of Brown's Canyon Campground Comment
  HSC71207  Lomatium utriculatum Thomas W. Nelson, Jane P. Nelson 1979-5-19 4682 Trinity Along Hwy. 3, about 1/2 mi. S of Hayfork 701 Comment
  HSC82532  Lomatium utriculatum Thomas W. Nelson 1979-5-13 4667 Trinity At junction of county roads NE of Rees Brothers Coal Mine. 579 Comment
  HSC34976  Lonicera hispidula var. vacillans Thomas W. Nelson 1974-9-21 1718 Del Norte Beside Patricks Creek. Comment
  HSC81931  Lonicera hispidula var. vacillans Thomas W. Nelson, Jane P. Nelson 1979-7-3 4962 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  HSC37832  Lonicera involucrata var. ledebourii Thomas W. Nelson, James Nelson 1976-3-11 2264 Humboldt Beside Eel River just N of W terminus of Singley Rd. Comment
  HSC81932  Lotus aboriginus Thomas W. Nelson, Jane P. Nelson 1979-7-3 4961 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  UC700946  Lotus argophyllus var. argophyllus Aven and Ruth Nelson 1939-3-25 3255 San Diego Borego Desert Comment
  HSC103350  Lotus crassifolius var. crassifolius Thomas W. Nelson, Jane Nelson 1983-7-29 7510 Siskiyou Along Forest Service Rd. 41N14, 5 mi. N of junction with Callahan-Cecilville County Rd., at crossing over Sugar Creek. 1433 Comment
  UC1543225  Lotus heermannii Donald G. Nelson 1935-4-6 256 Orange San Juan Capistrano, below main highway, about 4 mi from summit San Juan Canyon 60 Comment
  HSC48166  Lotus humistratus Thomas W. Nelson, Jane P. Nelson 1978-4-29 3930 Colusa Along Bear Valley Rd., 2 mi. from the junction with State Route 20. 366 Comment
  HSC82091  Lotus humistratus Thomas W. Nelson, Jane P. Nelson 1980-5-25 5299 Trinity Along trail from Blue Jay Mine-Little Red Mtn. Creek 1189 Comment
  HSC59778  Lotus humistratus Thomas W. Nelson 1978-5-17 4028 Mendocino B.L.M. Rd. to Red Mtn. area Comment
  RSA517455  Lotus junceus Donald G. Nelson 1937-7-10 525 Marin Pont Reyes Lighthouse, by car parking area at top of hill. Comment
  UC1607960  Lotus junceus var. biolettii Donald G. Nelson 1937-7-10 525 Marin lighthouse parking area sand dunes Point Reyes Comment
  UC1543203  Lotus micranthus Donald G. Nelson 1940-4-30 650 Lake s of Clearlake (between Middletown and Kelseyville, Loch Lomond, precisely at summit of the grade); Cobb. Mt., Loch Lomond Comment
  SFV18568  Lotus oblongifolius var. oblongifolius T. W. Nelson, J. P. Nelson 1987-6-27 8614 Del Norte Serpentine. 1098 Comment
  UC671881  Lotus stipularis var. stipularis Evelyn Hart Nelson 1940-5-3 93 Santa Cruz Loma Prieta, above spring near fire trail base Santa Cruz Mountains, Loma Prieta 975 Comment
  UC671882  Lotus stipularis var. stipularis Evelyn Hart Nelson 1940-7-2 93 a Santa Cruz Fire trail near Iron House (Santa Cruz Mountains, Loma Prieta); Santa Cruz Mountains, Loma Prieta 975 Comment
  HSC29036  Lotus unifoliolatus var. unifoliolatus Thomas W. Nelson 1971-6-13 47 Mendocino Beside Hwy. 101, 3 mi. N of rd. to Redwood Valley Comment
  RSA273379  Luina hypoleuca Thomas W. Nelson, James Nelson 1976-7-28 3054 Trinity A flora of the Lassics: Growing on Senteney Rock. 1524 Comment
  RSA254752  Lupinus Thomas W. Nelson, James Nelson, A. Nelson 1973-5-28 955 Humboldt McKeown Ranch north of Dinsmore. Comment
  HSC47767  Lupinus adsurgens var. lilacinus Thomas W. Nelson 1978-5-27 4076 Trinity Along USFS Rd. 27N02, 2 mi. S of Three Forks of Mad River. Comment
  HSC82456  Lupinus albicaulis Thomas W. Nelson, Jane P. Nelson 1979-5-26 4747 Trinity SR 3 at junction with rd. to Minersville and Bushy Trail Campground Comment
  SEINET10832925  Lupinus albicaulis subsp. shastensis Thomas W. Nelson, Jane P. Nelson 1979-5-26 Nelson 4747 Trinity T35n,r8w,sec.30. On road cut of state route 3 at junction with road to Minersville and bushy tail campground Comment
  HSC81835  Lupinus albifrons var. albifrons Thomas W. Nelson, Jane P. Nelson 1980-4-27 5099 Yolo Along State Route 16, 6 mi. from Colusa County line. 152 Comment
  HSC33222  Lupinus albifrons var. collinus Thomas W. Nelson 1974-4-22 1217 Marin At Rock Springs beside the rd. out Bolinas Ridge. Comment
  HSC35946  Lupinus albifrons var. flumineus Thomas W. Nelson, Jane P. Nelson 1975-6-20 1965 Trinity Along Rd. 5E27 just N of jct. with 1S07 1524 Comment
  HSC36638  Lupinus albifrons var. flumineus Thomas W. Nelson, James Nelson, Jane P. Nelson 1975-6-14 1904 Humboldt Beside Rd. 2S08 to Pine Mtn. 1555 Comment
  SEINET10484551  Lupinus albifrons var. flumineus Thomas W. Nelson, James P. Smith 1978-5-6 Nelson 3989 Trinity T29n,r12w,sec.35; serpentine bald at blue point 1554 Comment
  RSA258882  Lupinus andersonii var. apertus Thomas W. Nelson, James Nelson, A. P. Nelson 1974-6-17 1354 Placer Beside Hwy 80 at its jct with Blue Canyon Road, 9 miles W of the Placer - Nevada County line. Comment
  HSC37413  Lupinus bicolor Thomas W. Nelson 1972-11-25 710 Placer Del Oro Rd. near Roseville Comment
  HSC38118  Lupinus bicolor Thomas W. Nelson, J. P. Smith, Jane P. Nelson, James Nelson 1976-4-13 2360 Lake Along Bartlet Springs Rd., 0.6 mi. from its junction with Hwy. 20 Comment
  HSC38369  Lupinus bicolor Thomas W. Nelson 1976-5-4 2420 Mendocino Along N side of BLM road to Red Mtn. 427 Comment
  HSC71165  Lupinus bicolor Thomas W. Nelson 1977-5-30 3411 Humboldt Base of Eight Mile Ridge upstream from Anderson's Ford. 701 Comment
  UC1543070  Lupinus bicolor Donald G. Nelson 1940-4-30 667 Lake Loch Lomond precisely at the summit of the grade s Clear Lake (between Middletown and Kelseyville); s of Clear Lake, Cobb Mt. Comment
  UC1618013  Lupinus bicolor Donald G. Nelson 1940-4-30 667 Lake s of Clear Lake (between Middletown and Kelseyville, Cobb Mountain); Cobb Mountain Comment
  HSC38143  Lupinus bicolor Thomas W. Nelson, Jane P. Nelson 1976-5-10 2462 Butte Beside SR 191 just N of its junction with SR 70 Comment
  RSA517452  Lupinus bicolor subsp. microphyllus Donald G. Nelson 1940-4-30 667 Lake Cobb Mt., between Middletown and Kelseyville, S of Clearlake. Loch Lomond, precisely at summit of the grade. Comment
  SEINET10484945  Lupinus bicolor subsp. tridentatus Thomas W. Nelson, Jane P. Nelson 1978-4-29 Nelson 3938 Colusa Colusa co. T149,r5w,sec. 35; Elev. 1200'. Along bear valley rd. 2.5 Miles From junction with state route 20. Oak woodland. 366 Comment
  HSC81486  Lupinus caudatus Thomas W. Nelson, Jane P. Nelson 1980-7-6 6015 Lassen Along Adin-Madeline Rd. 0.5 mi. W of Moll Reservoir 1585 Comment
  UC1543234  Lupinus concinnus Donald G. Nelson 1936-5-24 421 Riverside e Lake Hemet (across from Hurkey Creek Camp, n of Mt. Tomas, San Jacinto Mountains); San Jacinto Mountains, e of Lake Hemet, n of Mt. Tomas Comment
  CAS-BOT-BC8425  Lupinus constancei T. W. Nelson; J. P. Nelson 1982-7-9 7079 Humboldt Blocksburg Quadrangle. Mt. Lassic (Signal Peak) and saddle to east. Comment
  HSC79474  Lupinus constancei Thomas W. Nelson, Jane Nelson 1982-7-9 7079 Humboldt Mt. Lassic (Signal Peak) and saddle to E 1768 Comment
  NY15833  Lupinus constancei T. W. Nelson 1982-7-9 7079 Humboldt Blocksburg quadrangle. Sepentine barrens on Mt. Lassic (Signal Peak) and saddle to east. 1767.8 Comment
  HSC81669  Lupinus croceus Thomas W. Nelson, Jane P. Nelson 1980-7-17 6070 Siskiyou Along FS Rd. 17, 1 mi. N of summit at county line 2073 Comment
  SEINET10490745  Lupinus croceus var. croceus Thomas W. Nelson, Jane P. Nelson 1978-7-24 Nelson 4482 Trinity Weaverville quad. T31n, r8w, sec 10. Along rd. To bully choop 100 m n of jct With rd. To lookout. Granites. White fir forest. 1768 Comment
  HSC34851  Lupinus densiflorus var. aureus Thomas W. Nelson 1975-5-8 1812 Sonoma Beside Hwy. 101 just S of Ash Creek near the Mendocino-Sonoma Co. line Comment
  HSC35826  Lupinus formosus Thomas W. Nelson, D. E. Anderson 1973-5-5 869 Mendocino N of Eden Valley Ranch overlooking Eden Creek along jeep road to Roberts Lake. 640 Comment
  RSA517738  Lupinus formosus var. formosus Donald G. Nelson 1939-8-14 631 Alameda Cragmont area of north Berkeley, along Miller Ave. Comment
  UC1543237  Lupinus formosus var. robustus Donald G. Nelson 1939-8-14 631 Alameda Cragmont area of N Berkeley along Miller Ave. North Berkeley; n Berkeley Comment
  HSC81808  Lupinus lapidicola Thomas W. Nelson, Jane P. Nelson 1980-7-17 6129 Trinity Along FS Rd. 17 at summit at county line 2073 Comment
  SEINET10485447  Lupinus lapidicola Thomas W. Nelson, Jane P. Nelson 1979-5-26 Nelson 4721 Siskiyou On serpentine along State Route 3 north of Scott Mountain Summit at junction with Forest Road 40N03. 1524 Comment
  JEPS81079  Lupinus lepidus var. lobbii Thomas W. Nelson and Jane P. Nelson 1980-6-27 5928 Trinity along road 2S08 ca .6 mi s junction with road 1S07; Six Rivers National Forest, Blocksburg Quad. 1645 Comment
  HSC103510  Lupinus lepidus var. sellulus Thomas W. Nelson, Jane Nelson 1986-6-23 8144 Lassen Along State Route 44, 10.9 mi. from Old Station junction. 1585 Comment
  HSC40137  Lupinus luteolus Thomas W. Nelson, Jane P. Nelson 1976-8-4 3157 Trinity Along Mule Ridge just W of Red Rock. 1585 Comment
  HSC39420  Lupinus lyallii var. villosus Thomas W. Nelson, Jane P. Nelson 1976-6-15 2710 Humboldt Along Trail from lookout to Blocksburg 1524 Comment
  HSC41636  Lupinus lyallii var. villosus Thomas W. Nelson, Jane P. Nelson 1977-6-19 3511 Humboldt Along rd. to Pine Mtn. SW of Alder Springs 1494 Comment
  HSC103485  Lupinus microcarpus var. densiflorus Thomas W. Nelson, Jane Nelson 1981-4-16 6452 Glenn Along county road, ~3 mi. N of Stonyford 305 Comment
  OBI60545  Lupinus microcarpus var. densiflorus Donald G. Nelson 1937-4-24 516 Contra Costa On Marsh Crk Rd, in rolling hill country N of Byron Comment
  CHSC78078  Lupinus nanus Terry Nelson 1998-4-18 240 -29 Shasta Growing on the mostly flat natural plains 7 mi nw of Cottonwood. 1.6 mi e of the Sacramento River and 40 yds s of Ash Creek. 158 Comment
  HSC34879  Lupinus nanus subsp. latifolius Thomas W. Nelson, James Nelson 1975-3-25 1754 Sonoma Beside Hwy. 128 E of Geyserville Comment
  HSC39308  Lupinus obtusilobus Thomas W. Nelson, Jane P. Nelson 1976-8-1 3121 Shasta Lassen Volcanic National Park, just N of trail head to Lassen Peak along main road Comment
  HSC40686  Lupinus obtusilobus Thomas W. Nelson, Jane P. Nelson 1976-8-1 3136 Shasta Lassen Volcanic National Park, Lassen Rd. at Kings Creek Meadow Comment
  RSA0084061  Lupinus obtusilobus Jane P. Nelson 1974-5-27 1318 Humboldt Mendocine National Forest near Mendocino Pass. 1524 Comment
  SFV18608  Lupinus onustus T. W. Nelson, J. P. Nelson 1987-5-24 8498 Del Norte Along road 305 (Low Divide Road), 7.7 miles north of junction with North Bank Road. 671 Comment
  HSC34852  Lupinus polycarpus Thomas W. Nelson 1975-5-8 1810 Sonoma Beside Hwy. 101 at Asti Comment
  RSA275290  Lupinus sellulus subsp. ursinus Thomas W. Nelson, Jane Nelson, A. P. Nelson 1977-6-19 3511 Humboldt Southwest of Alder Springs along road 2S08. 1463 Comment
  SEINET10451480  Lupinus sellulus subsp. ursinus Thomas W. Nelson, Jane P. Nelson 1982-7-28 Nelson 7256 Siskiyou Siskiyou-Trinity County line. Along west side of Forest Service Road 42N17 at summit above Daed Fall Meadow. Dry serpentine hillside. 2073 Comment
  SEINET10490221  Lupinus sellulus var. artulus Thomas W. Nelson, Jane P. Nelson 1982-5-31 Nelson 7016 Trinity Along State Route 299, 2.7 mi W of Buckhorn Summit. Mixed evergreen forest over decaying granites. 823 Comment
  SEINET10490225  Lupinus sellulus var. artulus Thomas W. Nelson, Jane P. Nelson 1979-6-15 Nelson 4805 Siskiyou China mtn quad. Serpentine along road to carmen lake .6 mi from jct with state Route 3. 1646 Comment
  SEINET10450622  Lupinus sellulus var. lobbii Thomas W. Nelson, Jane P. Nelson 1976-6-15 Nelson 2710 Humboldt Growing on serpentine along old trail from lookout to blocksburg. 1524 Comment
  SEINET10486278  Lupinus subvexus Thomas W. Nelson, Jane P. Nelson 1982-5-16 Nelson 6914 Trinity Along State Route 299 just E of Hayden Flat. Corolla bright red-violet. 335 Comment
  HSC33126  Lupinus succulentus Thomas W. Nelson, Jane P. Nelson 1974-4-9 1158 Lake Along Hwy. 20 between Lucerne and Clear Lake Oaks Comment
  HSC48160  Lupinus succulentus Thomas W. Nelson, Jane P. Nelson 1978-4-29 3925 Lake Along State Route 20, 1/2 mi. NE of N Fork of Cache Creek in Grizzly Canyon 305 Comment
  HSC34847  Lupinus vallicola subsp. apricus Thomas W. Nelson 1975-5-8 1809 Sonoma Beside Hwy. 101 at Asti Comment
  SEINET10490293  Lupinus vallicola subsp. apricus Thomas W. Nelson, Jane P. Nelson 1980-4-26 Nelson 5081 Mendocino Ukiah quad. Hillside above lake mendocino at lake mendocino campground. Oak Woodland & meadow. Comment
  SEINET10490294  Lupinus vallicola subsp. apricus Thomas W. Nelson, Jane P. Nelson 1978-4-29 Nelson 3963 Colusa Along bear valley rd. 2.5 Mi from jct with state route 20. Oak woodland. 366 Comment
  HSC48084  Luzula comosa Thomas W. Nelson, Jennifer Whipple 1978-4-28 3899 Del Norte Flood plain of Smith River, 1.8 mi. S of Hardscrabble Creek Comment
  HSC69795  Luzula comosa Thomas W. Nelson, Jane P. Nelson 1978-3-25 3829 Trinity Terrace above Canyon Creek at Lower Canyon Creek Meadow 915 Comment
  HSC71018  Luzula comosa Thomas W. Nelson 1979-4-9 4569 Nevada Along Hwy. 49, 11 mi. N of Auburn Comment
  HSC26864  Lythrum hyssopifolia Thomas W. Nelson 1971-6-15 485 Mendocino Overlooking Ten Mile Creek ca. 10 mi. N of Laytonville. Comment
  HSC97242  Madia doris-nilesiae Thomas W. Nelson, Jane Nelson 2003-6-16 9144 Trinity Along Forest Service road 29N33, 1 mi. W of junction with Forest Service road 29N34. 1540 Comment
  SEINET10673528 Image available Madia doris-nilesiae Thomas W. Nelson, Barbara Williams 1983-6-14 Nelson 7422 Trinity T1N, R7E, Sec. 2. Along Forest Service road 1N40 1/4 mile east of junction with road 1N35. Serpentine hillside. 1097 Comment
  HSC34699  Madia elegans Thomas W. Nelson 1974-8-24 1704 Humboldt Klamath River ca. 2 mi. below the mouth of Aikins Creek Comment
  HSC68818  Madia elegans Thomas W. Nelson, Jane P. Nelson 1980-6-18 5611 Trinity Shasta-Trinity National Forest, along FS Rd. 1N10, 1 mi. from junction with FS Rd. 2N07 (7) 1372 Comment
  HSC38100  Madia exigua Thomas W. Nelson, James Nelson 1976-5-30 2623 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC82117  Madia exigua Thomas W. Nelson, Jane P. Nelson 1980-5-25 5287 Trinity Along trail from Blue Jay Mine-Little Red Mtn. Creek 1189 Comment
  HSC40032  Madia gracilis Thomas W. Nelson, Jane P. Nelson 1976-6-22 2880 Humboldt At Goat Hill Lookout 1666 Comment
  HSC44130  Madia gracilis Thomas W. Nelson, Jane P. Nelson 1977-7-4 3607 Humboldt Along road N from Alder Spring 1555 Comment
  HSC70089  Madia gracilis Thomas W. Nelson, Jane P. Nelson 1978-6-21 4254 Trinity At Philpot Campground 762 Comment
  HSC82081  Madia gracilis Thomas W. Nelson, Jane P. Nelson 1980-4-27 5110 Yolo Along SR 16, 100 m E of bridge over Cache Creek, 4.2 mi. from county line 152 Comment
  HSC35609  Madia gracilis Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2021 Humboldt Beside Bald Hills Rd. 1 mi. E of Redwood National Park Comment
  HSC35959  Madia gracilis Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-21 1942 Trinity Dry meadow S of Brown's Canyon Campground Comment
  HSC69681  Madia gracilis Thomas W. Nelson, Jane P. Nelson 1978-6-9 4103 Trinity Along road to Ruth S of junction with S.R. 36 Comment
  UCR66730  Madia madioides Thomas W. Nelson 1978-5-17 4039 Mendocino Along BLM road to Red Mountain Comment
  POM362198  Madia minima Thomas W. Nelson, Jane P. Nelson 1977-7-4 3608 Humboldt Along road north from Alder Spring 1555 Comment
  NY214982  Madia stebbinsii T. W. Nelson 1978-6-23 4337 Trinity Dubakella Mountain Quadrangle, Along Forest Service Road to Hell t Find Lake 1158.2 Comment
  HSC103509  Maianthemum dilatatum Thomas W. Nelson, Jane Nelson 1991-5-25 8887 Del Norte Along State Route 101, 4 mi. N of Crescent City at KOA Campground 61 Comment
  HSC38998  Maianthemum racemosum subsp. amplexicaule Thomas W. Nelson, Jane P. Nelson 1976-5-31 2658 Humboldt County line, S of meadow along 5E27 just N of its junction with 1S07 1524 Comment
  HSC34914  Maianthemum stellatum Thomas W. Nelson, James Nelson 1975-5-24 1844 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC47754  Maianthemum stellatum Thomas W. Nelson, J. P. Smith 1978-5-6 3980 Trinity Along Philpot Creek at Philpot Campground 762 Comment
  HSC45240  Maianthemum stellatum Thomas W. Nelson, Jane P. Nelson 1977-6-19 3509 Humboldt Alder Springs 1524 Comment
  HSC33177  Malacothrix floccifera Thomas W. Nelson 1973-8-19 1114 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC34716  Malacothrix floccifera Thomas W. Nelson 1974-7-20 1688 Trinity Black Lassic Area 1799 Comment
  HSC44103  Malacothrix floccifera Thomas W. Nelson, Jane P. Nelson 1977-8-6 3686 Humboldt Along Rd. 2S08 near Alder Spring 1524 Comment
  HSC35856  Malacothrix saxatilis Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-8-16 2156 Santa Barbara Beside Hwy. 101 just S of Los Alamos Comment
  RSA293174  Malus fusca Thomas W. Nelson 1978-4-28 3895 Del Norte rocks above the aluvial plain of Smith River. 1.8 miles south of Hardscrable Creek. Comment
  UC1607989  Malva parviflora Donald G. Nelson 1935-4-14 276 Orange near Pacific Electric Railway Station (Newport Beach); Newport Beach Comment
  JEPS128113  Marah oregana Julie Kierstead Nelson with Heath Bartosh, Jepson Yolla Bolly Workshop 2017-7-15 2017 -042 Trinity Yolla Bolly Wilderness; near Tehama County line; North Yolla Bollies, Cedar Basin, SW aspect. Comment
  HSC26658  Marah oregana Thomas W. Nelson 1973-5-22 920 Humboldt Growing on C.S.U.H. campus Comment
  UC1543034  Marsilea vestita subsp. vestita Donald G. Nelson 1936-7-26 440 Orange mesa n of Newport Beach (Costa Mesa) Comment
  JEPS123433  Melica aristata Julie Kierstead Nelson with Marie Buell 2015-7-17 2015 -098 Trinity Yolla Bolly Wilderness; near Tehama County line; 0.3 miles W of North Yolla Bolly; headwaters of the east fork of the south fork of Trinity River. Comment
  JEPS97197  Melica fugax Julie Kierstead Nelson 1995-7-23 95020 Trinity 8 mi SW of Castella (Tamarack Lake, N side, E of outflow creek); Mt. Shasta Ranger District 1798 Comment
  HSC71456  Melica harfordii Thomas W. Nelson 1978-5-6 4018 Trinity Along State Route 299, 2 mi. N of Junction City. Comment
  UCD68038  Melilotus indicus Lori R. Nelson 1976-4-12 3 Yolo University of California, Davis, 0.1 mile South of Primate Center. Found near sewage ponds, along a gravel road. A prostrate plant. Flowers, yellow. Comment
  HSC36045  Mentha pulegium Thomas W. Nelson 1975-9-24 2200 Humboldt Beside Indianola Rd., ca. 1/2 mi. E of its junction with Hwy. 101 Comment
  JEPS128466  Mentzelia Julie Kierstead Nelson with Aaron Sims 2015-6-19 2015 -068 Tehama 1.5 miles SSW of Tedoc Gap, Beegum Creek watershed; Forest Road 27N12. Comment
  HSC40674  Mentzelia dispersa Thomas W. Nelson, Jane Nelson 1976-7-1 2926 Humboldt Along N side of Mt. Lassic (Signal Peak) 1738 Comment
  UC672035  Mentzelia dispersa Evelyn Hart Nelson 1940-5-29 118 Santa Clara Santa Cruz Mountains, Loma Prieta 1021 Comment
  CHSC78100  Micranthes californica Terry Nelson 1998-4-18 240 -25 Shasta Just below the ridge line on a slope with a ne aspect 6 mi ne of Cottonwood. 2 mi e of the Sacramento River and 1.8 mi n of Battle Creek. 158 Comment
  CHSC35518  Micropus californicus var. californicus Thomas Nelson; James Nelson 1976-5-30 2621 Humboldt McKeown Ranch north of Dinsmore. Comment
  HSC38133  Micropus californicus var. californicus Thomas W. Nelson, J. P. Smith, Jane P. Nelson, James Nelson 1976-4-13 2358 Lake Along Bartlet Springs Rd., 0.6 mi. from its junction with Hwy. 20 Comment
  HSC47740  Micropus californicus var. californicus Thomas W. Nelson, Jane P. Nelson 1978-4-29 3946 Colusa Along Bear Valley Rd., 2.5 mi. from junction with Hwy. 20 366 Comment
  HSC82337  Micropus californicus var. californicus Thomas W. Nelson, J. O. Sawyer 1977-5-1 3367 Mendocino Along Mail Ridge Rd., 10 mi. N of junction with Hwy. 101 Comment
  HSC26863  Micropus californicus var. californicus Thomas W. Nelson 1971-6-15 481 Mendocino Beside the road to Lake Pillsbury Comment
  HSC82227  Microseris acuminata Thomas W. Nelson 1979-4-10 4577 Placer Along W side of Sierra College Blvd. between I-80 and Douglas Blvd. Comment
  HSC37986  Microsteris gracilis Thomas W. Nelson, J. P. Smith, Jane P. Nelson, James Nelson 1976-4-12 2332 Lake Along Morgan Valley Rd., 1.5 mi. from Napa County line 671 Comment
  HSC40549  Microsteris gracilis Thomas W. Nelson, Jane P. Nelson 1976-5-23 2519 Humboldt SW facing slopes 1666 Comment
  HSC47724  Microsteris gracilis Thomas W. Nelson, J. P. Smith, J. O. Sawyer 1978-5-6 4006 Shasta Along county line road [31N01] 2.5 mi. E and N from Deer Lick Jct. Comment
  HSC82418  Microsteris gracilis Thomas W. Nelson 1979-7-11 5037 Humboldt Along trail from Grogan's Hole to summit of N Trinity Mtn. Comment
  HSC22023  Mimulus aurantiacus var. aurantiacus Thomas W. Nelson 1970-10-17 239 Humboldt Mouth of Prairie Creek Comment
  HSC35820  Mimulus aurantiacus var. aurantiacus Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-20 1914 Humboldt Beside Hwy. 36, 1 mi. W of Grizzley Creek Comment
  HSC40814  Mimulus breweri Thomas W. Nelson, Jane P. Nelson 1976-6-22 2865 Trinity Trinity-Humboldt County line, in spring along road to Goat Hill 1646 Comment
  RSA293181  Mimulus breweri Thomas W. Nelson, Jane P. Nelson, J. P. Smith 1978-7-24 4490 Trinity French Gulch Quad. Along Bully Choop Rd. ca 2 miles from road to lookout. 1372 Comment
  HSC69900  Mimulus cardinalis Thomas W. Nelson, Jane P. Nelson 1977-7-1 3541 Trinity Along Edge of Van Duzen River at Brown's Canyon 671 Comment
  HSC35630  Mimulus cardinalis Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-8-1 2143 Humboldt Beside Willow Creek just up stream from Hwy. 299 bridge Comment
  HSC26857  Mimulus dudleyi Thomas W. Nelson 1971-3-21 341 Mendocino Beside Hwy. 128 about 1 mi. E of Yorkville Comment
  JEPS120183  Mimulus guttatus Julie Kierstead Nelson 2011-6-2 2011 -004 Trinity Upper Hayfork Creek watershed, west of Wild-Mad Road, south of Hwy. 36; ca. 45 miles west-northwest of Red Bluff 1350 Comment
  HSC82026  Mimulus kelloggii Thomas W. Nelson, Jane P. Nelson 1980-5-25 5313 Trinity Along trail to Red Mtn. 1159 Comment
  HSC26807  Mimulus kelloggii Thomas W. Nelson 1971-4-24 405 Trinity Along the New River Trail Comment
  HSC103567  Mimulus layneae Thomas W. Nelson, Jane Nelson 1986-6-23 8122 Shasta Along State Route 44, 4 mi. E of Shingletown Comment
  CSUSB915  Mimulus longiflorus Steve G. Nelson 1974-5-22 Riverside Box Spring Mountains Box Springs Mountains. Found at edge of rock outcrop 457 Comment
  HSC32564  Mimulus moschatus Thomas W. Nelson 1973-9-3 1119 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC35659  Mimulus moschatus Thomas W. Nelson, Jane P. Nelson 1975-7-20 2082 Trinity Van Duzen River; Brown's Canyon Campground Comment
  HSC40813  Mimulus moschatus Thomas W. Nelson, Jane P. Nelson 1976-6-22 2866 Humboldt Along Rd. to Goat Hill. 1646 Comment
  JEPS123417  Mimulus moschatus Julie Kierstead Nelson with Marie Buell 2015-7-14 2015 -077 Trinity Yolla Bolly Wilderness; near Tehama County line; 0.3 miles W of North Yolla Bolly; headwaters of the east for of the south Fork of Trinity River. Comment
  HSC35623  Mimulus moschatus Thomas W. Nelson, B. Reinhardt 1975-7-30 2109 Humboldt Whiting Spring Comment
  HSC44775  Mimulus moschatus Thomas W. Nelson, Jane Nelson 1977-7-4 3606 Humboldt Along road north from Alder Springs 1524 Comment
  HSC71136  Mimulus moschatus Thomas W. Nelson, Jane P. Nelson, J. P. Smith 1978-7-24 4492 Trinity Along Bully Choop Rd. 2 mi. from rd. to lookout. 1372 Comment
  HSC40019  Mimulus nanus var. nanus Thomas W. Nelson, Jane P. Nelson 1976-7-1 2911 Humboldt Along N side of Mt. Lassic (Signal Peak) 1738 Comment
  HSC68903  Mimulus nanus var. nanus Thomas W. Nelson, Jane P. Nelson 1980-6-20 5677 Trinity Shasta-Trinity National Forest, along 4-wheel drive road out Blue Point Ridge, 1 mi. W of junction with FS Rd. 29N55 1555 Comment
  HSC71892  Mimulus nanus var. nanus Thomas W. Nelson, Jane P. Nelson 1980-6-22 5774 Trinity Shasta-Trinity National Forest, along Rd. 29N73, 0.9 mi. from Red Mountain. 1677 Comment
  HSC44818  Mimulus nanus var. nanus Thomas W. Nelson, Jane Nelson 1977-6-19 3487 Humboldt Along road on Goat Hill; unsurveyed section east of Section 12 1616 Comment
  HSC44820  Mimulus primuloides var. linearifolius Thomas W. Nelson, Jane P. Nelson 1977-7-30 3670 Trinity Along N side of Mule Ridge 1555 Comment
  HSC68654  Mimulus pulsiferae Thomas W. Nelson, Jane P. Nelson 1980-6-18 5564 Trinity Along Rd. 2N10 4 mi. N of Indian Valley Guard Station, just S of junction with Rd. 2N01 1341 Comment
  NY342561  Minuartia decumbens T. W. Nelson 1978-7-2 4396 Trinity Blocksburg Quadrangle; along north side of Mule Ridge 1585.0 Comment
  CAS-BOT-BC388910  Minuartia douglasii Thomas W. Nelson 1980-5-30 5385 Trinity Six Rivers National Forest. Along road 60 (Underwood Mountain Road) 0.5 miles south of junction with road 4N34 (Eltapom Road) 822 Comment
  HSC32475  Minuartia douglasii Thomas W. Nelson, D. E. Anderson 1973-5-6 861 Mendocino Along Jeep-road to Roberts Lake N of Eden Valley 701 Comment
  HSC67300  Minuartia douglasii Thomas W. Nelson, Jane P. Nelson 1980-6-17 5509 Trinity Shasta-Trinity National Forest, along Salt Creek Rd. at junction with FS Rd. 30N24 945 Comment
  HSC67388  Minuartia douglasii Thomas W. Nelson, James Nelson 1980-6-10 5413 Humboldt Along Swayback Ridge Rd., 2.5 mi. N of junction with FS Rd. 1S07 1463 Comment
  HSC67392  Minuartia douglasii Thomas W. Nelson 1980-5-30 5353 Trinity Shasta-Trinity National Forest, along Rd. 60/Underwood Mtn. Rd., 6.6 mi. S of junction with Hwy. 299 1067 Comment
  HSC69975  Minuartia douglasii Thomas W. Nelson, Jane P. Nelson 1978-6-21 4236 Trinity Along Hwy. 3 at Hayfork Summit 1062 Comment
  HSC81559  Minuartia douglasii Thomas W. Nelson, Jane P. Nelson 1980-5-25 5291 Trinity Along trail from Blue Jay Mine-Little Red Mtn. Creek 1189 Comment
  HSC82583  Minuartia douglasii Thomas W. Nelson, Jane P. Nelson 1979-5-26 4708 Siskiyou Along Hwy. 3, N of Scott Mtn. Summit, at junction with FS Rd. 40N03 1524 Comment
  HSC32818  Minuartia douglasii Thomas W. Nelson, D. E. Anderson 1973-5-6 842 Mendocino S of Eden Valley Ranch 640 Comment
  RSA293082  Minuartia douglasii Thomas W. Nelson, Jane P. Nelson 1980-6-17 5509 Trinity Shasta-Trinity Nat l Forest, along Salt Creek Road at jct. with road 30N24. 945 Comment
  HSC103606  Minuartia howellii Thomas W. Nelson, Jane Nelson 1987-5-24 8488 Del Norte Along Road 305 (Low Divide Road), 6 mi. N of junction with North Bank Rd. 640 Comment
  HSC36641  Minuartia nuttallii subsp. gregaria Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1899 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  HSC36642  Minuartia nuttallii subsp. gregaria Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1899 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  HSC69926  Minuartia nuttallii subsp. gregaria Thomas W. Nelson, J. O. Sawyer 1978-6-9 4120 Trinity Red Mtn. 1250 Comment
  HSC70064  Minuartia nuttallii subsp. gregaria Thomas W. Nelson, Jane P. Nelson 1978-6-23 4367 Trinity N of Red Mtn. along road from Red Mtn. to Hell to Find Lake 1616 Comment
  HSC36631  Minuartia nuttallii subsp. gregaria Thomas W. Nelson 1973-5-30 1006 Trinity SSW side of Red Lassic 1524 Comment
  HSC41205  Minuartia nuttallii subsp. gregaria Thomas W. Nelson, Jane P. Nelson 1977-7-1 3548 Humboldt Ridge N of Bear Creek, unsurveyed section E of 25 1555 Comment
  HSC70099  Minuartia nuttallii subsp. gregaria Thomas W. Nelson, Jane P. Nelson 1978-6-22 4283 Trinity Along Dubakella road, 3.7 mi. from intersection with Hwy. 36 1433 Comment
  CAS-BOT-BC181152  Minuartia rosei Thomas W. Nelson; Jane P. Nelson 1980-6-17 5494 Trinity Along Salt Creek Road at junctino with road 30N24, Shasta-Trinity National Forest 944 Comment
  HSC68665  Minuartia rosei Thomas W. Nelson, Jane P. Nelson 1980-6-18 5540 Trinity Along Hwy. 3, 0.4 mi. S of Salt Creek Bridge 762 Comment
  HSC68892  Minuartia rosei Thomas W. Nelson, Jane P. Nelson 1980-6-20 5669 Trinity Shasta-Trinity National Forest, along 4-wheel drive road out Blue Point Ridge, 1 mi. W of junction with FS Rd. 29N55 1555 Comment
  HSC71888  Minuartia rosei Thomas W. Nelson, Jane P. Nelson 1980-6-22 5778 Trinity Shasta-Trinity National Forest, along Rd. 29N73, 0.9 mi. from Red Mountain. 1677 Comment
  HSC81948  Minuartia rosei Thomas W. Nelson, Jane P. Nelson 1979-6-25 4885 Tehama Along road to Mt. Tedoc From Tedoc Gap 1494 Comment
  CAS-BOT-BC7297  Minuartia stolonifera T. W. Nelson; James L. Nelson 1985-6-19 7839 Siskiyou Along S side of State Route 3, 3.1 miles N of Scott Mountain Pass Comment
  CAS-BOT-BC229631  Mirabilis tenuiloba Aven Nelson; Ruth Nelson No date on label 3236 San Diego Borego Desert State Park Comment
  UC724148  Mirabilis tenuiloba Aven and Ruth Nelson 3236 San Diego <Borego> Desert State Park Comment
  UC1618112  Modiola caroliniana Donald G. Nelson 1939-5-30 603 Alameda University of California Campus at Berkeley University of California Campus; Berkeley, University of California Campus Comment
  HSC32868  Moehringia macrophylla Thomas W. Nelson, James Nelson 1973-5-20 913 Trinity N of Black Lassic 1524 Comment
  HSC67209  Moehringia macrophylla Thomas W. Nelson, James Nelson 1980-6-10 5437 Humboldt Along E side of Red Mtn. 1372 Comment
  HSC40544  Moehringia macrophylla Thomas W. Nelson, Jane P. Nelson 1976-5-23 2529 Trinity E side of Black Lassic S side of Fork of Shanty Creek 1524 Comment
  HSC71820  Moehringia macrophylla Thomas W. Nelson, Jane P. Nelson 1980-6-27 5936 Humboldt Along old trail to pond above Alder Spring, 0.5 mi. N of campground 1555 Comment
  HSC97697  Mollugo verticillata Thomas W. Nelson, Shauna Hee 2006-8-4 9462 Siskiyou Scott Mtn. Pass, along ridge between Carmen Lake, Hwy. 3, ridge S of junction of FS Rds. 40N08 and 44N44 1671 Comment
  HSC81683  Monardella glauca Thomas W. Nelson, Jane P. Nelson 1980-7-21 6161 Siskiyou Along FS Rd. 40N08, 0.6 mi. from junction with Hwy. 3 1646 Comment
  HSC82159  Monardella odoratissima Thomas W. Nelson, Jane P. Nelson 1979-6-25 4925 Tehama Along F.S. Rd. 45 at mile post 11, W slope of Mt. Tedoc 1372 Comment
  SFV18598  Monardella odoratissima subsp. pallida T. W. Nelson, J. P. Nelson 1987-7-6 8624 Shasta Cascade Range Just off Eskimo Hill Road, State Route 44. 1646 Comment
  RSA258876  Monardella odoratissima subsp. pallida Thomas W. Nelson 1973-7-10 1036 Trinity Along Mule Ridge south-east of Red Lassic. Comment
  HSC69944  Monardella villosa Thomas W. Nelson, Jane P. Nelson 1977-7-14 3632 Lake Along USFS Rd. 20N01 534 Comment
  CAS-BOT-BC233766  Montia Thomas Nelson; D. E. Anderson 1973-5-5 809 Mendocino Roberts Lake area of Eden Valley north of Eden Valley Ranch Comment
  HSC44172  Muhlenbergia filiformis Thomas W. Nelson, Jane P. Nelson 1977-7-30 3651 Trinity S fork of Black Lassic Creek. 1463 Comment
  SEINET269009  Nama demissa Jonathan D. Nelson 1995-3-28 0002 Inyo Death Valley 11 miles south of intersection of route 178 and 127 Comment
  OBI78873  Nama rothrockii Jodie Nelson & Christian Knowlton, Chirstian Knowlton 2013-5-26 S.n. Kern Sherman Pass Comment
  UC1607973  Nama stenocarpa Donald G. Nelson 1936-7-26 441 Orange on the mesa n of Newport Beach Costa Mesa (Costa Mesa) Comment
  HSC44777  Navarretia capillaris Thomas W. Nelson, Jane P. Nelson 1977-6-19 3467 Trinity Above Senteney Rock 1524 Comment
  HSC68646  Navarretia capillaris Thomas W. Nelson, Jane P. Nelson 1980-6-18 5553 Trinity Shasta-Trinity National Forest, Friend Mtn. along FS Rd. 2N15 1372 Comment
  HSC39599  Navarretia intertexta Thomas W. Nelson, Jane P. Nelson 1976-7-1 2937 Trinity Along FS 5E27 just N of junction with FS 1S07 1555 Comment
  HSC82434  Navarretia leptalea Thomas W. Nelson, Jane P. Nelson, R. J. Cole 1979-7-27 5060 Tehama Along old logging rd. W side of USFS Rd. at Pole Corral Gap 1311 Comment
  HSC38260  Navarretia leucocephala Thomas W. Nelson, Jane P. Nelson 1976-5-9 2454 Butte At intersection of Palermo Rd. and S.R. 70 ca. 4 mi. S of Oroville Comment
  HSC83897  Navarretia leucocephala subsp. minima Thomas W. Nelson, Jane Nelson 1979-4-11 4600 Placer Along N side of Douglas Blvd., 1 mi. S of junction with I-80 Comment
  HSC39439  Navarretia mellita Thomas W. Nelson, James Nelson 1976-5-24 2585 Mendocino Jct. of Cat Track Rd. and BLM rd. to School Section Creek 732 Comment
  HSC35861  Navarretia mellita Thomas W. Nelson, James Nelson 1975-8-5 2132 Humboldt Along S spit of Humboldt Bay adjacent to jetty Comment
  HSC81693  Navarretia pubescens Thomas W. Nelson, Jane P. Nelson 1980-6-26 5919 Mendocino Along Covelo-Zenia county rd. 303, 2.5 mi. N of its junction with SR 162 671 Comment
  HSC82548  Navarretia pubescens Thomas W. Nelson, Jane Nelson 1980-6-26 5913 Mendocino Along USFS Rd. M-1, 2.5 mi. W of bridge over Black Butte River 701 Comment
  RSA275329  Navarretia sinistra subsp. pinnatisecta Thomas W. Nelson 1976-7-9 2983 Trinity Along road 5E27; south of Senteney Rock. 1524 Comment
  HSC34708  Navarretia squarrosa Thomas W. Nelson 1974-7-20 1696 Humboldt McKeown Ranch N of Dinsmore Comment
  UC672010  Navarretia squarrosa Evelyn Hart Nelson 1940-6-26 141 Santa Clara Loma Prieta Santa Cruz Mountains 977 Comment
  UC1607998  Nemophila menziesii Donald G. Nelson 1935-3-16 164 Orange n Fullerton; n of Fullerton 60 Comment
  HSC26799  Nemophila parviflora Thomas W. Nelson 1971-4-25 417 Trinity Grays Falls Campground Comment
  HSC32882  Nemophila parviflora Thomas W. Nelson, James Nelson 1973-5-28 934 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC71171  Nemophila parviflora Thomas W. Nelson 1977-5-30 3416 Humboldt Base of Eight Mile Ridge upstream from Anderson's Ford. 701 Comment
  HSC82629  Nemophila parviflora Thomas W. Nelson 1979-5-13 4646 Trinity Along road from S.R. 3 to Deerlick Springs ca. 2 mi. S of Blanchard Flats 640 Comment
  HSC26832  Nemophila parviflora Thomas W. Nelson 1971-3-21 345 Mendocino Beside Hwy. 128 about 1 mi. E of Yorkville Comment
  JEPS123432  Nemophila parviflora var. austiniae Julie Kierstead Nelson with Marie Buell 2015-7-16 2015 -099 Tehama Yolla Bolly Wilderness very near Trinity/Tehama County line; North Yolla Bollies head of Beegum Basin. Comment
  CAS-BOT-BC140143  Neviusia cliftonii J. K. Nelson; Len Lindstrand III 2004-9-1 2004 -100 Shasta Stein Creek, Pit River Arm, Shasta Lake; ca 20 miles NE of Redding 350 Comment
  JEPS111044  Neviusia cliftonii J. K. Nelson with Len Lindstrand III 2004-9-1 2004 -105 Shasta Shoreline north of Blue Ridge, Pit River Arm, Shasta Lake; ca 20 miles NE of Redding 326 Comment
  UC724339  Nicotiana obtusifolia Aven Nelson, Ruth A. Nelson 1939-3-25 3263 San Diego Borego Desert; below the public campground Comment
  UC884682  Nicotiana obtusifolia Aven Nelson, Ruth A. Nelson 1939-3-25 3263 San Diego Borego Desert; below public campground Comment
  HSC32706  Noccaea fendleri subsp. glauca Thomas W. Nelson, Jane P. Nelson 1973-4-24 775 Mendocino Beside jeep road to Roberts Lake, N of Eden Valley Ranch. Comment
  HSC67361  Noccaea fendleri subsp. glauca Thomas W. Nelson, Jane P. Nelson 1980-5-25 5275 Trinity Six Rivers National Forest, above Little Red Mtn. Creek along trail S from Blue Jay Mine 1067 Comment
  HSC82555  Noccaea fendleri subsp. glauca Thomas W. Nelson, Jane P. Nelson 1979-5-26 4713 Siskiyou Along Hwy. 3, N of Scott Mtn. Summit, at junction with FS Rd. 40N03 1524 Comment
  HSC43110  Notholithocarpus densiflorus var. densiflorus Thomas W. Nelson, Jane P. Nelson 1978-2-5 3760 Humboldt Kneeland, E side of junction of Kneeland and Maple Creek roads 671 Comment
  HSC69962  Notholithocarpus densiflorus var. echinoides Thomas W. Nelson 1978-6-14 4190 Del Norte Along French Hill Rd., 8.7 mi. from junction with Hwy. 199 Comment
  UCR70765  Notholithocarpus densiflorus var. echinoides Thomas W. Nelson, Jane P. Nelson, J. P. Smith 1978-6-23 4468 Shasta Along road to Bully Choop, 12 mi. from junction with County Road A16 Comment
  HSC48063  Nuttallanthus texanus Thomas W. Nelson 1978-4-23 3885 Humboldt N of Samoa Comment
  UC1618040  Nuttallanthus texanus Donald G. Nelson 1935-4-14 283 Orange near Pacific Electric Railway Station, Newport Beach Comment
  HSC37831  Oemleria cerasiformis Thomas W. Nelson, Jane P. Nelson 1976-2-21 2248 Humboldt Tish-Tang campground Comment
  HSC82412  Oreostemma alpigenum var. andersonii Thomas W. Nelson 1979-7-11 5018 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  CAS-BOT-BC502865  Orobanche cooperi subsp. cooperi Aven Nelson; Ruth Nelson 1939-3-28 3301 Riverside East of N end of Salton Sea, near Mecca Comment
  UC671985  Orobanche fasciculata Evelyn Hart Nelson 1940-5-18 99 Santa Clara Loma Prieta, Santa Cruz Mountains. Comment
  HSC71924  Orobanche fasciculata Thomas W. Nelson, Jane Nelson 1980-6-26 5909 Mendocino Mendocino National Forest, along FS Rd. 1N02 at Blue Banks, 3.6 mi. S of Grizzly Flat Ranger Station 1524 Comment
  HSC26304  Orobanche uniflora Thomas W. Nelson 1971-4-24 397 Trinity Along the New River Trail Comment
  UCR45386  Orthocarpus copelandii Thomas W. Nelson, Jane P. Nelson 1980-7-17 6099 Trinity Along Forest Service Road 17 at summit at county line 2073 Comment
  HSC81509  Orthocarpus cuspidatus subsp. copelandii Thomas W. Nelson, Jane Nelson 1980-7-17 6099 Trinity Along FS Rd. 17 at summit at county line 2073 Comment
  RSA258897  Orthocarpus purpurascens var. purpurascens Thomas W. Nelson, Jane P. Nelson 1974-4-8 1145 Lake ca. 200 m. east of Oasis Resort 13 mi. east of Clear Lake Oaks along Hwy 20. Comment
  JEPS106489  Osmorhiza brachypoda J. K. Nelson with Susan Erwin and Jeff Paulo 2004-7-8 2004 -86 Trinity Yolla Bolly Wilderness, N side saddle between North Yolla Bolly Mountains and Black Rock, upper end Pettijohn Basin Comment
  HSC28242  Osmorhiza occidentalis Thomas W. Nelson 1973-7-14 1092 Trinity Beside Deadfall Creek, just west of head of trail to Deadfall Lake Comment
  HSC32844  Osmorhiza purpurea Thomas W. Nelson, Jane P. Nelson 1973-5-28 945 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC33182  Osmorhiza purpurea Thomas W. Nelson 1974-4-20 1185 Humboldt Near Elk Head N of Trinidad Comment
  UC724229  Oxystylis lutea Aven and Ruth Nelson 1939-4-2 3285 Inyo road sides near Shoshone Comment
  HSC70179  Packera bolanderi Thomas W. Nelson, Jane P. Nelson 1978-7-4 4415 Humboldt Along county road ca. 3 mi. SE of Kneeland Airport 762 Comment
  HSC103520  Packera cana Thomas W. Nelson, Jane Nelson 1986-6-23 8129 Shasta Along State Route 44, .7 mi. from Old Station near foot of steep grade Comment
  HSC67254  Packera greenei Thomas W. Nelson, Jane P. Nelson 1980-6-17 5519 Trinity Shasta-Trinity National Forest, across Salt Creek from Salt Creek Campground 915 Comment
  HSC68599  Packera greenei Thomas W. Nelson, Jane P. Nelson 1980-6-18 5541 Trinity Along Hwy. 3, 0.4 mi. S of Salt Creek Bridge 762 Comment
  HSC68775  Packera greenei Thomas W. Nelson, Jane P. Nelson 1980-6-19 5655 Trinity Shasta-Trinity National Forest, Rattlesnake Ridge along Forest Servcie Rd. 29N62, 1.3 mi. W of junction with FS Rd. 29N58 1220 Comment
  HSC68820  Packera greenei Thomas W. Nelson, Jane P. Nelson 1980-6-19 5617 Trinity Along Salt Creek Rd., 2 mi. from junction with Hwy. 3 793 Comment
  HSC68833  Packera greenei Thomas W. Nelson, Jane P. Nelson 1980-6-19 5632 Trinity Along Old State Rte. 36 (Post Creek Rd.) at bridge over Glade Creek 884 Comment
  HSC68868  Packera greenei Thomas W. Nelson 1980-6-20 5712 Trinity Shasta-Trinity National Forest, along Forest Service Rd. 29N73, 1.6 mi. S of junction with Hwy. 36 1220 Comment
  HSC68967  Packera greenei Thomas W. Nelson, Jane P. Nelson 1980-6-22 5731 Trinity Shasta-Trinity National Forest: along S.R. 36 on ridge between Salt Creek and Muldoon Gulch; 2.5 mi. W of junction with Rd. 30 1311 Comment
  HSC70137  Packera greenei Thomas W. Nelson, Jane P. Nelson, J. P. Smith 1978-7-22 4463 Tehama At jct. of Tedoc Rd. and road to summit of Mt. Tedoc Comment
  HSC70145  Packera greenei Thomas W. Nelson, Jane P. Nelson 1978-6-21 4249 Trinity At Philpot Creek Campground 762 Comment
  HSC70152  Packera greenei Thomas W. Nelson, Jane P. Nelson 1978-6-21 4227 Trinity Along Hwy. 3, 0.25 mi. E of Hayfork Summit 1037 Comment
  HSC71861  Packera greenei Thomas W. Nelson, Jane P. Nelson 1980-6-22 5781 Trinity Along FS Rd. 30, 10 mi. S of junction with Hwy. 36 and 1.5 mi. W of junction with road to Pine Root Spring 1463 Comment
  HSC88192  Paeonia brownii R. E. Nelson, T. Baumann, Kondratieff, T. Sargent 1988-1-12 5117 Orange San Juan Creek at the Lower San Juan Campground, Cleveland National Forest. 366 Comment
  HSC25956  Parentucellia viscosa Thomas W. Nelson 1970-10-17 268 Del Norte Beside Lagoon Creek Comment
  JEPS117868  Parnassia californica J. K. Nelson with Martin Lenz 2004-9-2 2004 -109 Trinity Headwaters Crow Creek, west of Castle Crags, ca 50 miles NW of Redding, below Forest Road 1767 Comment
  JEPS117867  Parnassia cirrata var. intermedia J. K. Nelson with Martin Lenz 2004-9-2 2004 -108 Trinity Tamarack Creek basin, west of Castle Crags, ca 45 miles NW of Redding. 1732 Comment
  UC1543028  Pectocarya penicillata Donald G. Nelson 1936-5-24 416 Riverside just n Lake Hernet (nw of Thomas Mtn, on Pine to Palms Hwy); San Jacinto Mountains, east slope, Hurky Creek Camp Comment
  HSC69859  Pectocarya pusilla Thomas W. Nelson 1978-5-27 4081 Trinity At Secret Gulch ca. 1 mi. NW of Three Forks of Mad River 884 Comment
  POM368812  Pectocarya pusilla Thomas W. Nelson 1978-5-27 4081 Trinity Secret Gulch ca. 1 mile northwest of Three Forks of Mad River. 884 Comment
  HSC32697  Pedicularis densiflora Thomas W. Nelson, Jane P. Nelson 1973-4-24 771 Mendocino Beside jeep road to Roberts Lake, N of Eden Valley Ranch. Comment
  HSC39514  Pedicularis densiflora Thomas W. Nelson, Alan Goes, James Nelson 1976-5-24 2602 Mendocino E of Red Mtn. 1098 Comment
  HSC67344  Pedicularis densiflora Thomas W. Nelson 1980-5-30 5363 Trinity Along Rd. 60 (Underwood Mtn. Rd.), 10 mi. S from junction with Hwy. 299 1341 Comment
  LA200  Pellaea andromedifolia I. L. Nelson; 1950-5-1 sn Los Angeles Santa Monica Mountains, Topanga Canyon Comment
  HSC36613  Pellaea brachyptera Thomas W. Nelson 1973-5-30 1000 Trinity Red Lassic area 1799 Comment
  CHSC33041  Penstemon anguineus Thomas Nelson; Jane Nelson 1976-7-1 2907 Humboldt The Lassics. Growing along east side of Red Lassic; beside rd. 1S07. 1676 Comment
  NY1056913  Penstemon anguineus T. W. Nelson 1982-7-17 7184 Glenn Plasket Meadows Campground 1829 Comment
  HSC32570  Penstemon anguineus Thomas W. Nelson 1973-7-10 1038 Trinity Along Mule Ridge Comment
  RSA258870  Penstemon anguineus Thomas W. Nelson 1973-7-10 1038 Trinity Along Mule Ridge south-east of Red Lassic. Comment
  HSC82609  Penstemon azureus Thomas W. Nelson, Jane P. Nelson 1979-5-26 4729 Trinity Along Hwy. 3 at S end of Eagle Creek Loop Comment
  NY1056911  Penstemon azureus subsp. azureus T. W. Nelson 2004-6-21 9257 Shasta Along road to PG7E Pit dam #6. 3.3 miles from junction with Big Bend road. Cascades of Califronia 560 Comment
  NY571153  Penstemon azureus var. azureus T. W. Nelson 1979-5-26 4729 Trinity Bonanza King Quad. Moist field along State Route 3 at south end of Eagle Creek Loop. Comment
  HSC70093  Penstemon deustus Thomas W. Nelson, Jane P. Nelson 1978-6-22 4307 Trinity Along branch road off Dubakella Rd., 2 mi. from junction with Red Mtn. Motorway, along ridge SW of S Dubakella 1555 Comment
  JEPS116584  Penstemon laetus Julie Kierstead Nelson with Rhonda Posey 2007-6-15 2007 -016 Siskiyou North side of Mt. Shasta, south of Hwy 97, along Forest Service Rd. 42N15 Weed (unburned area witin Hotlum Fire perimeter burned Feb 2006; 4 mi NE of town of); Mt. Shasta 1219 Comment
  HSC35697  Penstemon laetus subsp. sagittatus Thomas W. Nelson, B. Reinhardt 1975-7-30 2104 Humboldt Along road out Whiting Ridge Comment
  SEINET11262166  Penstemon laetus var. sagittatus Thomas Nelson, Jane Nelson; James Nelson 1975-6-14 1905 Humboldt Growing on north side of Pine Mountain.; 0 Comment
  CHSC118644  Penstemon laetus var. sagittatus Julie Kierstead Nelson; Martin Lenz, Rhonda Posey, Brenna Montagne 2016-6-9 2016 -032 Siskiyou Lower Parks Creek watershed, E Klamath Range, along Forest Service Road 42N19, 4 miles northwest of Stewart Springs; UTM NAD 83 Zone 10, 539279m E, 4587169m N. 4944 Comment
  HSC82124  Penstemon newberryi subsp. berryi Thomas W. Nelson 1979-7-11 4996 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC81641  Penstemon parvulus Thomas W. Nelson, Jane P. Nelson 1980-7-17 6110 Trinity Along FS Rd. 17 at summit at county line 2073 Comment
  NY629998  Penstemon parvulus T. W. Nelson 1979-6-14 4761 Trinity Bonanza King Quad. Along Trinity River and Old State Route 3 north of Eagle Creek Campground 823.0 Comment
  JEPS123418  Penstemon procerus Julie Kierstead Nelson with Marie Buell 2015-7-14 2015 -075 Trinity Yolla Bolly Wilderness; near Tehama County line; 0.3 miles W of North Yolla Bolly; headwaters of the east for of the south Fork of Trinity River. Comment
  HSC34722  Penstemon purpusii Thomas W. Nelson 1974-7-20 1685 Trinity Black Lassic Area 1799 Comment
  HSC68733  Penstemon purpusii Thomas W. Nelson, Jane Nelson 1980-6-22 5751 Trinity Shasta-Trinity National Forest, along FS Rd. 29N28, 7 mi. S of junction with Hwy. 36, 1 mi. from Goat Camp 1372 Comment
  HSC70070  Penstemon purpusii Thomas W. Nelson, Jane Nelson 1978-6-23 4374 Trinity N of Red Mtn. along road from Red Mtn. to Hell to Find Lake 1616 Comment
  HSC81496  Penstemon roezlii Thomas W. Nelson, Jane Nelson 1980-7-6 6021 Lassen Along Adin-Madeline Rd. 0.5 mi. W of Moll Reservoir. 1585 Comment
  HSC82000  Penstemon roezlii Thomas W. Nelson, Jane Nelson 1979-6-16 4853 Siskiyou Along Hwy. 3, 3.1 mi. N of Scott Mtn. Summit 1280 Comment
  HSC40196  Penstemon rydbergii var. oreocharis Thomas W. Nelson, Jane Nelson 1976-8-1 3145 Shasta Lassen Volcanic National Park, King's Creek campground Comment
  JEPS116617  Penstemon speciosus Julie Kierstead Nelson with Rhonda Posey 2007-6-15 2007 -013 Siskiyou North side of Mt. Shasta, south of Hwy 97, along Forest Service Rd. 42N73 Weed (unburned area within Hotlum Fire perimeter burned in Feb 2006, 4 mi NE of town); Mt. Shasta 1127 Comment
  CAS-BOT-BC94095  Pentagramma triangularis Julie Kierstead Nelson 2004-3-12 2004 -005 Shasta Jones Valley, S side of Shasta Lake; ca. 10 mi NE of Redding. S of County Road 5H04 (Forest Road 33N03), near Clikapudi 335 Comment
  HSC38210  Pentagramma triangularis Thomas W. Nelson 1976-5-3 2384 Mendocino Along old Hwy. 101 at its junction with BLM road to Red Mtn. Comment
  HSC32525  Perideridia kelloggii Thomas W. Nelson 1973-9-3 1126 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC35720  Perideridia kelloggii Thomas W. Nelson, J. O. Sawyer 1975-10-9 2230 Mendocino Along BLM road to Red Mountain just S of junction with Cat Track Rd. Comment
  GH378617  Peritoma arborea A. Nelson 1930-3-1 11168 a Unknown No. of Palm Springs Comment
Read comments
Jan 6 2015
  HSC35978  Peritoma arborea Thomas W. Nelson, Jane Nelson, James Nelson 1975-8-19 2176 Los Angeles Beside Hwy. 5, W of junction with Hwy. 138 915 Comment
  POM190724  Perityle emoryi A. Nelson 1930-3-14 11182 a San Diego In Devil's Canyon, Jacumba. Comment
  HSC34702  Persicaria amphibia Thomas W. Nelson 1974-8-24 1705 Humboldt Klamath River ca. 2 mi. below the mouth of Aikins Creek Comment
  HSC47736  Petrorhagia dubia Thomas W. Nelson, Jane P. Nelson 1978-4-29 3942 Colusa Along Bear Valley Rd., 2.5 mi. from junction with Hwy. 20 366 Comment
  OBI78874  Petrorhagia dubia Kristen Nelson 2013-5-22 s.n. San Luis Obispo Cuesta Grade. West side along dirt road west of TV tower Road 616 Comment
  UC724131  Peucephyllum schottii Aven and Ruth Nelson 1939-3-27 3291 Imperial near Fish Springs (w of the Salton Sea) Comment
  SFV18588  Phacelia argentea T. W. Nelson, J. P. Nelson 1987-5-25 8516 Del Norte Coastal meadows at Point Saint George 30 Comment
  CHSC110530  Phacelia corymbosa Julie Kierstead Nelson 2011-8-23 2011 -44 Siskiyou Eastern Klamath Mountains, The Eddys. North side of Fawn Creek, 2 miles NE of Gumboot Lake. Comment
  CHSC35588  Phacelia corymbosa Thomas W. Nelson; Jane P. Nelson 1980-6-17 5528 Trinity Shasta-Trinity National Forest. Along road 1N12(12) 1.1 miles from junction with road 2N07(7). 1005 Comment
  HSC30759  Phacelia corymbosa Thomas W. Nelson 1973-5-30 9871 Trinity Along Mule Ridge 1372 Comment
  HSC67199  Phacelia corymbosa Thomas W. Nelson, Jane P. Nelson 1980-6-16 5451 Trinity Shasta-Trinity National Forest, just N of Philpot Campground 793 Comment
  HSC68850  Phacelia corymbosa Thomas W. Nelson, Jane P. Nelson 1980-6-20 5716 Trinity Shasta-Trinity National Forest, along Forest Service Rd. 29N73, 1.6 mi. S of junction with Hwy. 36 1220 Comment
  HSC70186  Phacelia corymbosa Thomas W. Nelson, Jane P. Nelson 1978-6-23 4324 Trinity Along FS Rd. 30, 1 mi. S of junction with SR 36 Comment
  JEPS128445  Phacelia corymbosa Julie Kierstead Nelson with Martin Lenz 2015-5-18 2015 -041 Shasta Shotgun Road, eastern Klamath Range, Sacramento River canyon west of Interstate 5; ca. 8 miles south of Castle Crags. Comment
  JEPS81081  Phacelia corymbosa Thomas W. Nelson and Jane P. Nelson 1980-6-18 5600 Trinity along rd 1N10 1 mi from junction with road 2N07 (7); Shasta-Trinity National Forest, Pickett Peak Quad. 1371 Comment
Read comments
Jul 11 2012
  UCR80262  Phacelia corymbosa Thomas W. Nelson, Jane P. Nelson 1977-7-4 3576 Humboldt Head of N Fork of Conley Creek 520 Comment
  RSA258856  Phacelia corymbosa Thomas W. Nelson, James Nelson 1973-5-30 987 Trinity Along Mule Ridge south-east of Red Lassic. Comment
  UCD120291  Phacelia corymbosa Thomas W. Nelson; Jane P. Nelson 1980-6-17 5499 Trinity Shasta-Trinity National Forest. Along Salt Creek Road at junction with road 30N24. 944 Comment
  HSC130440  Phacelia greenei Thomas W. Nelson, Susan Erwin 2004-6-3 9221 Siskiyou Forest Service Rd. 40N08 at junction with FS Rd.44N44 1696 Comment
  HSC34886  Phacelia heterophylla Thomas W. Nelson 1975-5-17 1833 Trinity Beside Hwy. 299 just E of Big Bar. Comment
  HSC41589  Phacelia heterophylla subsp. virgata Thomas W. Nelson, Jane P. Nelson 1977-6-19 3526 Trinity Above Senteney Rock 1555 Comment
  HSC81721  Phacelia imbricata Thomas W. Nelson, Jane P. Nelson 1980-4-27 5121 Mendocino At mile post 55.38 along old Hwy. 101 N of Willits Comment
  UCR147822  Phacelia minor Beth Nelson 1991-4-20 010 San Bernardino San Bernardino Valley/San Gabriel Mtns., North of Fontana, 15 Fwy NE., exit Sierra Ave., left 0.3 miles to Lytle Creek Rd., turn left, 1.2 miles [mouth of Lytle Creek Canyon, just above Nealey's Corner] 640 Comment
  CHSC105865  Phacelia pringlei Julie Kierstead Nelson 2010-7-3 2010 -012 Siskiyou Scott Mountain; Road 40N08 from hwy 3 at summit to Carment Lake, at Pacific Crest Trail crossing. 1676 Comment
  HSC81553  Phacelia pringlei Thomas W. Nelson, Jane P. Nelson 1980-7-17 6097 Trinity Along FS Rd. 17 at summit at county line 2073 Comment
  JEPS118711  Phacelia pringlei Julie Kierstead Nelson 2010-6-3 2010 -012 Siskiyou Scott Mountain; Road 40N08 from Hwy. 3 at summit to Carmen Lake, at Pacific Crest Trail crossing. Comment
  JEPS121730  Phacelia procera Julie Kierstead Nelson with Martin Lenz 2014-6-3 2011 -066 Shasta Van Sicklin Road, Forest Road 37N48, 4 miles south of McCloud Dam. Comment
  JEPS128101  Phacelia procera Julie Kierstead Nelson with Heath Bartosh, Jepson Yolla Bolly Workshop 2017-7-14 2017 -027 Trinity Yolla Bolly Wilderness; Black Rock Lake. Comment
  JEPS106490  Phacelia procera J. K. Nelson with Susan Erwin and Jeff Paulo 2004-7-8 2004 -90 Trinity Yolla Bolly Wilderness, N side of saddle between North Yolla Bolly Mountains and Black Rock, upper end Pettijohn Basin Comment
  RSA258850  Phacelia tanacetifolia Thomas W. Nelson 1973-4-9 1162 Lake Along highway 20 between Lucerne and Clear Lake Oaks. Comment
  HSC40395  Phleum pratense Thomas W. Nelson, Jane P. Nelson 1976-7-26 3026 Trinity Along 1S07 NE side of Red Lassic. 1677 Comment
  HSC33085  Phlox diffusa Thomas W. Nelson, Jane P. Nelson 1974-5-26 1288 Glenn Saddle just N of trail to Black butte 2134 Comment
  HSC68904  Phlox diffusa Thomas W. Nelson, Jane P. Nelson 1980-6-20 5676 Trinity Shasta-Trinity National Forest, along 4-wheel drive road out Blue Point Ridge, 1 mi. W of junction with FS Rd. 29N55 1555 Comment
  UCD118253  Phlox speciosa Thomas W. Nelson; Jane P. Nelson 1980-6-22 5848 Tehama Along forest service rd. 45, 1.9 miles north of Tedoc Gap; west side of Mt. Tedoc. 1371 Comment
  CHSC35599  Phlox speciosa subsp. occidentalis Thomas W. Nelson; Jane P. Nelson 1980-6-22 5848 Tehama North Coast Ranges. Along forest service rd. 45 1.9 miles north of Tedoc Gap; west side of Mt. Tedoc. 1371 Comment
  HSC68946  Phlox speciosa subsp. occidentalis Thomas W. Nelson, Jane P. Nelson 1980-6-22 5737 Trinity Along Hwy. 36 at Muldoon Gulch, Shasta-Trinity National Forest 1311 Comment
  HSC82284  Phlox speciosa subsp. occidentalis Thomas W. Nelson, Jane P. Nelson 1979-6-15 4804 Siskiyou Along road to Carmen Lake, 0.6 mi. from junction with State Route. 1646 Comment
  RSA254828  Phoenicaulis cheiranthoides Thomas W. Nelson, James Nelson 1974-5-27 1313 Mendocino Mendocino National Forest near Mendocino Pass 1524 Comment
  HSC38024  Phoradendron bolleanum Thomas W. Nelson, Jane Nelson 1976-5-10 2488 Butte Just E of Magalia Comment
  CAS-BOT-BC135082  Phoradendron californicum Aven Nelson; Ruth Nelson 1939-3-24 3238 San Diego In Borego Desert Comment
  HSC40601  Phoradendron serotinum subsp. tomentosum Thomas W. Nelson, James Nelson 1976-6-22 2827 Trinity 1494 Comment
  UC724189  Phragmites australis Aven and Ruth Nelson 1939-4-1 3370 Riverside Blythe Comment
  UC1618079  Phyla Donald G. Nelson 1939-6-9 106 San Joaquin s.e. Stockton (on the Mt. Diablo Base Line, junction of Austin Rd. & Little John Creek) Comment
  HSC81699  Pickeringia montana var. montana Thomas W. Nelson, Jane P. Nelson 1980-6-24 5881 Lake Along Forest Service Rd. 17N16, 3.1 mi. E of Bear Creek Ranger Station 1220 Comment
  UC671877  Pickeringia montana var. montana Evelyn Hart Nelson 1939-7-29 1 Santa Clara Loma Prieta Santa Cruz Mountains (mountain top) 1160 Comment
  UC1543146  Pilularia americana Donald G. Nelson 1935-4-15 301 Orange near Costa Mesa (on rd from Garden Grove to Costa Mesa, <rd.> converging toward main hwy. from Santa Ana) Comment
  RSA254812  Pinus attenuata Thomas W. Nelson, D. Anderson 1973-5-5 823 Mendocino In the Roberts Lake area of Eden Valley N of Eden Valley Ranch. Growing in woodland E of Roberts Lake. Comment
  HSC32888  Pinus jeffreyi Thomas W. Nelson 1973-5-30 981 Trinity Along Mule Ridge SE of Red Lassic Comment
  JEPS128118  Pinus jeffreyi Julie Kierstead Nelson with Heath Bartosh, Jepson Yolla Bolly Workshop 2017-7-13 2017 -022 Trinity Yolla Bolly Wilderness; near Tehama County line; Pettiohn Basin; headwaters of the east fork of the south fork of Trinity River. Comment
  HSC38307  Pinus lambertiana Thomas W. Nelson, Alan Goes 1976-5-3 2406 Mendocino Along road E of Red Mtn. 1159 Comment
  JEPS128116  Pinus monticola Julie Kierstead Nelson with Heath Bartosh, Ken Hickman Jepson Yolla Bolly Workshop 2017-7-14 2017 -038 Trinity Yolla Bolly Wilderness; near Tehama County line; Pettiohn Basin; headwaters of the east fork of the south fork of Trinity River. Comment
  CAS-BOT-BC72827  Pinus ponderosa Thomas Nelson; Jane Nelson 1976-2-7 2259 Trinity Pigeon Point Comment
  HSC32875  Pinus ponderosa Thomas W. Nelson, D. E. Anderson 1973-5-6 910 Mendocino Along the road to Eden Valley, W side of summit Comment
  RSA254847  Pinus ponderosa Thomas W. Nelson, D. Anderson 1973-5-6 910 Mendocino Growing on moist hillsides along the road to Eden Valley, west side of summit. Comment
  UC1543039  Piperia cooperi Donald G. Nelson 1935-4-6 245 Orange about 4 mi from San Juan Canyon summit (canyon 200-300 ft below main highway, e of San Juan Capistrano) Comment
  HSC82225  Plagiobothrys canescens Thomas W. Nelson 1979-4-10 4575 Placer Along W side of Sierra College Blvd. between I-80 and Douglas Blvd. Comment
  HSC82420  Plagiobothrys cognatus Thomas W. Nelson, Jane P. Nelson 1980-4-26 5091 Lake Tule Lake, SE side of Hwy. 20, 3 mi. from its junction with Hwy. 29 Comment
  HSC38054  Plagiobothrys fulvus Thomas W. Nelson, Jane P. Nelson 1976-5-9 2460 Butte At intersection of Palermo Rd. and S.R. 70 ca. 4 mi. S of Oroville Comment
  HSC103437  Plagiobothrys glyptocarpus Thomas W. Nelson, Jane Nelson 2005-4-21 9297 Shasta Dersch Rd., 1.9 mi. from junction with Deschutes Rd. along Dry Creek, below bridge 147 Comment
  HSC41225  Plagiobothrys hispidulus Thomas W. Nelson, Jane P. Nelson 1977-6-19 3497 Humboldt Above Alder Springs 1585 Comment
  HSC37990  Plagiobothrys nothofulvus Thomas W. Nelson, James Nelson, Jane P. Nelson, J. P. Smith 1976-4-12 2337 Lake Along Morgan Valley Rd., 1.5 mi. from Napa County line 671 Comment
  HSC38120  Plagiobothrys nothofulvus Thomas W. Nelson, J. P. Smith, Jane P. Nelson, James Nelson 1976-4-13 2356 Lake Along Bartlet Springs Rd., 0.6 mi. from its junction with Hwy. 20 Comment
  HSC38363  Plagiobothrys nothofulvus Thomas W. Nelson 1976-5-4 2413 Mendocino Along N side of BLM road to Red Mtn. 427 Comment
  HSC103470  Plagiobothrys nothofulvus Thomas W. Nelson 2005-5-24 9324 Trinity Vacant lot in Weaverville, at jct. of State Rte. 299 and Mountain View Street. 676 Comment
  HSC32720  Plagiobothrys nothofulvus Thomas W. Nelson, Jane P. Nelson 1973-4-24 795 Mendocino W edge of serpentine beside road to Roberts Lake N of Eden Valley Ranch Comment
  HSC38279  Plagiobothrys nothofulvus Thomas W. Nelson, Jane P. Nelson 1976-3-21 2272 Shasta Beside Hwy. 299, 3 mi. W of Clear Creek bridge Comment
  HSC82514  Plagiobothrys nothofulvus Thomas W. Nelson 1979-5-13 4675 Trinity At junction of county roads NE of Rees Brothers Coal Mine. 579 Comment
  CHSC105712  Plagiobothrys shastensis Julie Kierstead Nelson 2005-5-2 2005 -004 Shasta Floodplain of Stillwater Creek, Encanto Way, 8 miles NE of Redding. 182 Comment
  HSC82443  Plagiobothrys stipitatus Thomas W. Nelson, Jane P. Nelson 1980-4-26 5093 Lake Tule Lake, SE side of Hwy. 20, 3 mi. from its junction with Hwy. 29 Comment
  HSC35909  Plagiobothrys tenellus Thomas W. Nelson, James Nelson, Jane P. Nelson 1975-6-21 1930 Trinity Brown's Canyon Campground. Comment
  HSC38111  Plagiobothrys tenellus Thomas W. Nelson, J. P. Smith, Jane P. Nelson, James Nelson 1976-4-13 2369 Lake Along Bartlet Springs Rd., 0.6 mi. from its junction with Hwy. 20 Comment
  HSC47746  Plagiobothrys tenellus Thomas W. Nelson, Jane P. Nelson 1978-4-29 3941 Colusa Along Bear Valley Rd., 2.5 mi. from junction with Hwy. 20 366 Comment
  HSC69823  Plagiobothrys tenellus Thomas W. Nelson 1978-5-27 4067 Trinity Along trail to Red Mtn. 1220 Comment
  HSC69871  Plagiobothrys tenellus Thomas W. Nelson 1978-5-28 4093 Humboldt McKeown Ranch, N of Dinsmore 762 Comment
  HSC33143  Plantago erecta Thomas W. Nelson, Jane Nelson 1974-4-9 1174 Mendocino Eel River Campground, Mendocino National Forest Comment
  HSC34858  Plantago erecta Thomas W. Nelson, James Nelson 1975-5-5 1794 Lake Beside Hwy. 29, 2 mi. N of Middletown Comment
  HSC37870  Plantago erecta Thomas W. Nelson, J. P. Smith, Jane P. Nelson, James Nelson 1976-4-12 2315 Lake Beside Morgan Valley Rd. 7.8 mi. from Lower Lake 640 Comment
  UC1618062  Plantago major Donald G. Nelson 1935-7-15 306 Orange Costa Mesa Comment
  UC1618068  Plantago ovata Donald G. Nelson 1935-3-30 194 Orange On Tonner lease, mouth of Brea Canyon. Comment
  UC1618005  Plantago patagonica Donald G. Nelson 1936-5-24 417 Riverside Hurkey Creek Camp Comment
  HSC70190  Platanthera sparsiflora Thomas W. Nelson, Jane P. Nelson 1978-6-23 4328 Trinity Along FS Rd. 30, 1 mi. S of junction with SR 36 Comment
  HSC39507  Platystemon californicus Thomas W. Nelson, James Nelson, Alan Goes 1976-5-4 2441 Mendocino Along BLM road to School Section Creek 610 Comment
  UC1618090  Platystemon californicus Donald G. Nelson 1937-4-27 530 Alameda n side of small canyon on lefthand side of Tunnel Road at entrance to Canyon Oakland (Oakland) Comment
  HSC32744  Platystemon californicus Thomas W. Nelson, Jane P. Nelson 1973-4-23 756 Mendocino E of Eden Valley Ranch along Toney Creek 640 Comment
  CHSC110510  Plectritis Julie Kierstead Nelson 2010-4-5 Shasta Clikapudi Trail, south shore of Shasta Lake, north of Jones Valley. 381 Comment
  HSC38168  Plectritis macrocera Thomas W. Nelson, Jane Nelson 1976-5-23 2516 Trinity Brown's Canyon Campground. Comment
  JEPS106474  Poa J. K. Nelson with Susan Erwin and Jeff Paulo 2004-7-8 2004 -76 Trinity Yolla Bolly Wilderness, headwaters of East Fork South Fork Trinity River, ca. 1 mi SW of North Yolla Bolly Mountains 2100 Comment
  HSC40309  Poa bolanderi Thomas W. Nelson, Jane P. Nelson 1976-6-22 2846 Humboldt Along Rd. to Goat Hill. 1646 Comment
  HSC28172  Poa bulbosa Thomas W. Nelson 1971-4-24 388 Trinity Parking lot at the start of New River trail. Comment
  HSC40330  Poa pratensis Thomas W. Nelson, Jane P. Nelson 1976-6-22 2854 Humboldt Bog along road to Goat Hill. 1646 Comment
  HSC40518  Poa secunda subsp. secunda Thomas W. Nelson, Jane P. Nelson 1976-6-16 2743 Humboldt Just W of Alder Springs. 1524 Comment
  HSC40520  Poa secunda subsp. secunda Thomas W. Nelson, Jane P. Nelson 1976-7-1 2927 Humboldt Along ridge W of Lassic Peak (Signal Peak). 1738 Comment
  HSC40690  Poa secunda subsp. secunda Thomas W. Nelson, Jane P. Nelson 1976-7-1 2954 Trinity Thin sedimentary soils along 5E27 between meadows. 1524 Comment
  JEPS117863  Poa secunda subsp. secunda J. K. Nelson with Rhonda Posey, Mary Ellen Colberg, Twyla Miller 2006-5-19 2006 -19 Siskiyou North side of Mt. Shasta south of Hwy. 97 Hotlum Fire area burned in February 2006 1090 Comment
  HSC69724  Polygala californica Thomas W. Nelson 1978-6-14 4174 Del Norte Along French Hill Rd., 2.4 mi. from junction with Hwy. 199 Comment
  HSC81907  Polygala cornuta var. cornuta Thomas W. Nelson, Jane P. Nelson 1979-7-7 4989 Trinity Along margin of Trinity Lake at Wyntoon Campground Comment
  HSC39646  Polygonum aviculare Thomas W. Nelson, James Nelson 1976-6-22 2747 Trinity Above Senteney Rock near junction of 5E27 and 6E42 1524 Comment
  UC1543012  Polygonum aviculare subsp. aviculare Donald G. Nelson 1936-5-29 430 Orange edge of lot along hwy between Marshall Avenue and Grand Avenue (on W. Commonwealth Ave.); Buena Park Comment
  HSC40108  Polygonum douglasii Thomas W. Nelson, James Nelson 1976-7-28 3057 Trinity The Lassics, along 5E27 just N of 1S07 1524 Comment
  JEPS120264  Polygonum douglasii Julie Kierstead Nelson 2009-9-28 2009 -019 Trinity Unnamed drainage of NE of Saddle Gulch, Dubakella Mountain, ca. 1/2 mile south of Hwy 36W Comment
  CDA2923  Polygonum polystachyum Thomas W. Nelson, M. Alcasas 1978-10-1 4555 Humboldt Highway 101 right-of-way just north of Humboldt State University exit. 0 Comment
  CDA2924  Polygonum polystachyum Thomas W. Nelson, M. Alcasas 1978-10-1 4555 Humboldt Highway 101 right-of-way just north of Humboldt State University exit. 0 Comment
  RSA275327  Polygonum polystachyum Thomas W. Nelson 1978-10-10 4555 Humboldt Growing on Hwy 101 right of way just N of Humboldt State University exit, 1.5 miles. Comment
  JEPS123436  Polygonum sawatchense subsp. oblivium Julie Kierstead Nelson with Marie Buell 2015-7-18 2015 -119 Trinity Yolla Bolly Wilderness; saddle between Black Rock and North Yolla Bolly, off Pettijohn trail. Comment
  HSC40166  Polygonum shastense Thomas W. Nelson, Jane P. Nelson 1976-8-1 3116 Shasta Lassen Volcanic National Park, at head of trail to Lassen Peak Comment
  HSC35604  Polygonum spergulariiforme Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2015 Humboldt French Camp, Bald Hills. Comment
  HSC37827  Polypodium californicum Thomas W. Nelson, Jane Nelson 1976-2-21 2250 Humboldt Tish-Tang campground Comment
  HSC35954  Polystichum imbricans subsp. imbricans Thomas W. Nelson 1975-6-20 1956 Trinity Black Lassic area 1799 Comment
  HSC40413  Polystichum munitum Thomas W. Nelson, Jane Nelson 1976-7-1 2962 Trinity Along FS Rd. 5E27 just S of Senteney Rock 1524 Comment
  HSC70135  Polystichum munitum Thomas W. Nelson, Jane Nelson, J. P. Smith 1978-7-22 4461 Tehama Along road to summit of Mount Tedoc 1555 Comment
  SEINET3874030 Image available Polystichum munitum var. imbricans Thomas Nelson, Jane P. Nelson; James Nelson 1975-6-14 1903 Humboldt Beside branch off Rd. 2S08 to Pine Mountain.; 0 Comment
  HSC81530  Polystichum scopulinum Thomas W. Nelson, Jane Nelson 1980-7-20 6183 Siskiyou Above and to SE of Big Carmen Lake 1738 Comment
  UC1543099  Porophyllum gracile Donald G. Nelson 1936-5-22 393 Riverside on trail down to stream in Palm Spring Canyon; Ribbon Wood Camp, Pines to Palms Highways, Santa Rosa Mounta Comment
  UCR63022  Potentilla anserina Donald G. Nelson 1939-6-14 617 San Mateo East side of Skyline Blvd., a few miles south of Daly City. Large permanent pond 196 Comment
  CHSC23902  Potentilla anserina subsp. pacifica Thomas W. Nelson 1970-10-17 262 Del Norte W side of highway 101 adjacent to pond. Comment
  HSC23146  Potentilla anserina subsp. pacifica Thomas W. Nelson 1970-10-17 262 Del Norte W of Hwy. 101 Comment
  UC1543108  Potentilla anserina subsp. pacifica Donald G. Nelson 1939-6-14 617 San Mateo e side Skyline Blvd (a few mi s of Daly City); s of Daly Cith Comment
  HSC82396  Potentilla drummondii Thomas W. Nelson 1979-7-11 5010 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC33423  Potentilla gracilis var. flabelliformis Thomas W. Nelson, James Nelson 1974-6-17 1375 Placer Dollar Point N of Lake Tahoe City 1585 Comment
  CHSC118638  Potentilla millefolia Julie Kierstead Nelson; Martin Lenz, Rhonda Posey, Brenna Motagne 2016-6-9 2016 -008 Siskiyou Lower Parks Creek watershed, E Klamath Range; along Forest Service Road 42N19, 3 miles nothwest of Stewart Springs UTM NAD 83 Zone 10, 539582m E, 4586490m N. 1371 Comment
  HSC82630  Prosartes hookeri Thomas W. Nelson 1979-5-13 4648 Trinity Along Rd. from SR 3 to Deerlick Springs 2 mi. S of Blanchard Flats. 640 Comment
  UC1288497  Prunella Andrew P. Nelson 1960-8-3 646 C Sonoma Pitkin Marsh Comment
  HSC22004  Prunella vulgaris Thomas W. Nelson 1970-10-17 256 Del Norte W side of Hwy. 101 Comment
  HSC26841  Prunella vulgaris Thomas W. Nelson 1971-1-8 321 Humboldt Ferndale next to Co. Fair Grounds Comment
  UC1618059  Prunella vulgaris Donald G. Nelson 1935-6-26 337 Los Angeles near Fullerton Comment
  HSC81567  Prunella vulgaris subsp. lanceolata Thomas W. Nelson, Jane P. Nelson 1980-7-13 6062 Humboldt Along the road from Dinsmore to Anderson Ford-McKeown Ranch Rd. 762 Comment
  HSC81963  Prunella vulgaris subsp. lanceolata Thomas W. Nelson, Jane P. Nelson 1979-7-3 4946 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  GH400858  Prunella vulgaris subsp. lanceolata A. P. Nelson 1960-1-1 566 , 642 Unknown Point Reyes road ca. 0.3 miles west of turn off to Drake's Bay, Point Reyes 30 Comment
  UC1288494  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-8-13 668 San Bernardino on road to Blue Jay near Arrowhead Lake town (Burnt Mill Canyon); , near town of Arrowhead Lake 1524 Comment
  UC1402052  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-8-27 680 -16 Madera Comment
  UC1402055  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-8-25 675 -27 Tulare Comment
  UC1402058  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-8-22 671 -14 Tuolumne Comment
  UC1402064  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-7-19 628 -30 Humboldt Comment
  UC1288499  Prunella vulgaris var. vulgaris Andrew P. Nelson 1960-8-3 646 A Sonoma Pitkin Marsh Comment
  UC1321001  Prunella vulgaris var. vulgaris Andrew P. Nelson 1960-8-2 645 Alameda Berkeley; 1834 Addison Comment
  HSC35044  Prunus emarginata Thomas W. Nelson, James Nelson 1974-6-17 1364 Placer Beside Hwy. 80 at its intersection with Blue Canyon Rd., 9 mi. W of the Placer-Nevada County line 1646 Comment
  HSC39624  Prunus emarginata Thomas W. Nelson, Jane P. Nelson 1976-6-15 2728 Humboldt Along old trail from lookout to Blocksburg 1585 Comment
  UC671892  Prunus emarginata Evelyn Hart Nelson 1940-5-18 51 a Santa Clara Santa Cruz Mountains, Loma Prieta Loma Prieta; Santa Cruz Mountains, Loma Prieta 978 Comment
  UC671891  Prunus ilicifolia Evelyn Hart Nelson 1940-6-26 144 Santa Clara Santa Cruz Mountains, Loma Prieta, road to lower Loma Loma Prieta; Santa Cruz Mountains, Loma Prieta 960 Comment
  CHSC35525  Prunus subcordata Thomas Nelson; J. P. Smith, Jane Nelson, James Nelson 1976-4-11 2296 Lake Clearlake State Park. Comment
  RSA293123  Prunus subcordata Thomas W. Nelson, J. P. Smith, Jane Nelson, James Nelson 1976-4-11 2296 Lake Clearlake State Park. Comment
  UCR80261  Prunus subcordata Thomas W. Nelson, J. P. Smith, Jane P. Nelson, James Nelson 1976-4-11 2296 Lake Clearlake State Park Comment
  SD129662  Prunus virginiana var. demissa Donald G. Nelson 1940-4-30 669 Lake Just above Seigler Hot Springs Comment
  UC1618011  Prunus virginiana var. demissa Donald G. Nelson 1940-4-30 669 Lake n slopes above Siegler Hot Springs (between Loch Lomond and Lower Lake, Cobb Mountain); Cobb Mountain 304 Comment
  CAS-BOT-BC356308  Psathyrotes ramosissima Aven Nelson; Ruth A. Nelson 1939-3-23 3222 Imperial Desert west side of Salton Sea Comment
  CAS-BOT-BC356332  Psathyrotes ramosissima Aven Nelson; Ruth A. Nelson 1939-3-29 3312 Riverside On trip from Mecca to Hidden Springs Comment
  UC724350  Psathyrotes ramosissima Aven Nelson, Ruth A. Nelson 1939-3-23 3222 Imperial desert w side Salton Sea Comment
  UC671967  Pseudognaphalium californicum Evelyn Hart Nelson 1939-6-29 19 Santa Clara Loma Prieta Santa Cruz Mountains, Loma Prieta 977 Comment
  HSC59772  Pseudognaphalium luteoalbum Thomas W. Nelson 1978-5-17 4034 Mendocino Along BLM road to Red Mtn. Area Comment
  HSC40526  Pseudognaphalium thermale Thomas W. Nelson, James Nelson 1976-7-28 3060 Humboldt SW-facing outcrop along S.R. 36 ca. 4 mi. W of Dinsmore Comment
  HSC81663  Pseudostellaria jamesiana Thomas W. Nelson, Jane P. Nelson 1980-7-17 6079 Siskiyou Along FS Rd. 17, 1 mi. N of summit at county line 2073 Comment
  JEPS128117  Pseudotsuga menziesii Julie Kierstead Nelson with Heath Bartosh, Jepson Yolla Bolly Workshop 2017-7-14 2017 -036 Trinity Yolla Bolly Wilderness; trail from Pettiohn Basin to Black Rock Lake. Comment
  UC1543165  Psilocarphus Donald G. Nelson 1935-4-15 300 Orange On road from Garden Grove to Cosa Mesa, converging near Costa Mesa, toward main highway from Santa Ana Comment
  CHSC843  Psorothamnus emoryi L. Nelson 1935-4-17 Riverside Colorado Desert. Comment
  UC724224  Psorothamnus schottii Aven and Ruth Nelson 1939-3-25 3249 San Diego about public camp-ground , about public camp-ground (Borego Desert State Park) Comment
  HSC40122  Pterospora andromedea Thomas W. Nelson, James Nelson 1976-7-28 3071 Humboldt Along small creek E of old road from Goat Mountain lookout to branch road of FS 2S08 N of Alder Springs. 1555 Comment
  HSC35972  Pycnanthemum californicum Thomas W. Nelson, James Nelson 1973-7-14 1067 Trinity Next to the Trinity River at Eagle Creek Comment
  HSC69767  Pyrola aphylla Thomas W. Nelson, Jane Nelson 1977-9-3 3715 Humboldt J.E. Losey property above junction of Kneeland-Maple Creek Rd. 671 Comment
  HSC82140  Pyrola dentata Thomas W. Nelson, Jane Nelson 1979-6-25 4929 Tehama Along F.S. Rd. 45 at mile post 11, W slope of Mt. Tedoc 1372 Comment
  HSC32659  Pyrola picta Thomas W. Nelson 1973-5-30 1012 Trinity Black Lassic area 1799 Comment
  HSC39498  Pyrola picta Thomas W. Nelson, Alan Goes, James Nelson 1976-5-4 2428 Mendocino Along N Fork of School Section Creek 976 Comment
  UC1618046  Quercus Donald G. Nelson 1940-4-30 659 Lake between Middletown and Kelseyville (summit of the grade, just above Loch Lomond, Cobb Mt.); Cobb Mt. Comment
  UCD46937  Quercus X morehus R. E. Nelson 1947-11-26 RN 28 Mendocino 2 miles west of Redwood Valley. 304 Comment
  GH344019  Quercus agrifolia D. G. Nelson 1935-10-2 Unknown Campus, University of California, Berkeley Comment
  POM224195  Quercus agrifolia Donald G. Nelson 1935-10-2 s.n. Alameda Campus, University of California, Berkeley Comment
  UC545774  Quercus agrifolia Donald G. Nelson 1935-10-2 Alameda Campus, Univ. of Calif., Berkeley Univ. of Calif., Berkeley Comment
  HSC69897  Quercus berberidifolia Thomas W. Nelson, Jane P. Nelson 1977-7-14 3635 Lake Along USFS Rd. 20N01 534 Comment
  UC671924  Quercus berberidifolia Evelyn Hart Nelson May 1939 29 Santa Clara Loma Prieta Santa Cruz Mountains 975 Comment
  HSC37825  Quercus chrysolepis Thomas W. Nelson, Jane P. Nelson 1976-2-21 2251 Humboldt Tish-Tang campground Comment
  HSC44165  Quercus chrysolepis Thomas W. Nelson, James Nelson 1976-6-10 2685 Trinity Ridge above Senteney Rock 1555 Comment
  CHSC110505  Quercus douglasii Julie Kierstead Nelson 2012-5-1 2012 -013 Shasta 5 miles N of Shasta College, NE of Redding; floodplain of unnamed tributary to Stillwater Creek. 198 Comment
  HSC32726  Quercus durata var. durata Thomas W. Nelson, Jane P. Nelson 1973-4-24 792 Mendocino Beside jeep road to Roberts Lake, N of Eden Valley Ranch. Comment
  HSC69677  Quercus durata var. durata Thomas W. Nelson, J. O. Sawyer 1978-6-9 4111 Trinity Red Mtn. 1250 Comment
  HSC71875  Quercus durata var. durata Thomas W. Nelson, Jane P. Nelson 1980-6-22 5834 Shasta Shasta-Trinity National Forest, junction of FS Rd. 41 and FS Rd. 28N08 1220 Comment
  HSC47730  Quercus garryana var. breweri Thomas W. Nelson, J. P. Smith, J. O. Sawyer 1978-5-6 3999 Shasta Along forest rd. to Beegum Gorge at Zachary Gulch Comment
  CHSC110543  Quercus lobata Julie Kierstead Nelson 2012-5-1 2012 -011 Shasta 5 mi. N of Shasta College, NE of Reddinga; floodplain of unnamed tributary of Stillwater Creek; 198 Comment
  HSC67391  Quercus vacciniifolia Thomas W. Nelson 1980-5-30 5369 Trinity Along Rd 4N09, 1.9 miles from junction with road 60 (Underwood Mountain Rd) 1128 Comment
  UC1543001  Quercus vacciniifolia Donald G. Nelson 1940-4-30 658 Lake s of Clear Lake (between Middletown and Kelseyville, Loch Lomond, precisely at the summit of the grade); Cobb Mt., Loch Lomond Comment
  UC671923  Quercus wislizeni Evelyn Hart Nelson 1939-8-16 47 Santa Clara Loma Prieta Santa Cruz Mountains 975 Comment
  UC724311  Rafinesquia neomexicana Aven Nelson, Ruth A. Nelson 1939-3-27 3288 Imperial Imperial County Line Imperial County Line (State Highway 78) Comment
  SEINET9334866  Ranunculus californicus John Nelson, Wnek, R. 2000-3-7 20939 Sonoma Coleman Beach Comment
  UC1618122  Ranunculus cymbalaria var. saximontanus Donald G. Nelson 1936-5-22 392 Riverside Pines to Palms Hwy, near base of Santa Rosa Mountains Santa Rosa Mountains Comment
  RSA245287  Ranunculus hebecarpus Thomas W. Nelson 1971-5-7 429 Humboldt Beside Hwy 101, 1 miles S of Arcata. Comment
  CHSC110660  Ranunculus muricatus Julie Kierstead Nelson 2009-3-30 2009 -014 Shasta 5 mi. N of Shasta College, NE of Redding. 198 Comment
  HSC71056  Ranunculus occidentalis Thomas W. Nelson, Jane P. Nelson 1977-5-30 3390 Humboldt McKeown Ranch. Along road to Anderson's Ford. 854 Comment
  RSA400025  Ranunculus occidentalis var. eisenii Thomas W. Nelson, Jane P. Nelson 1980-6-19 5645 Trinity Sahsta Trinity National Forest, along road 29N58, Rattlesnake Ridge, at jct with road 29N67 1341 Comment
  HSC26666  Ranunculus occidentalis var. occidentalis Thomas W. Nelson 1971-4-24 407 Trinity Near Gray's Falls parking lot. Comment
  HSC69865  Ranunculus orthorhynchus var. platyphyllus Thomas W. Nelson 1978-5-28 4089 Humboldt McKeown Ranch, N of Dinsmore 762 Comment
  HSC26651  Ranunculus orthorhynchus var. platyphyllus Thomas W. Nelson 1971-5-29 449 Humboldt Beside Snow Camp Rd. Comment
  HSC71213  Ranunculus sardous Thomas W. Nelson, Doris K. Niles 1979-5-19 4696 Humboldt Tidal marsh at mouth of Eel River, Crab Park, N of County Park. Comment
  HSC81964  Ranunculus uncinatus var. parviflorus Thomas W. Nelson, Jane P. Nelson 1979-7-3 4945 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  HSC22009  Raphanus sativus Thomas W. Nelson 1970-10-17 249 Del Norte W side Hwy. 101, Crescent City Comment
  HSC28225  Raphanus sativus Thomas W. Nelson 1971-4-12 374 Humboldt Hookton Rd. at the junction of Copenhagen Rd. Comment
  POM332451  Rhamnus californica Thomas W. Nelson, Jane P. Nelson 1978-4-29 3961 Colusa Along Bear Valley Rd., 2 miles from jct with Hwy 20. 366 Comment
  SEINET13946277 Image available Rhamnus californica Thomas Nelson, Jane Nelson 1978-1 4428 Trinity T29N R11W Sec 4. Along State Route 36 3 miles W of junction with Md River-Wildwood Forest Service Road Comment
  CAS-BOT-BC65498  Rhamnus rubra Julie Kierstead Nelson; Rhonda Posey 2007-6-15 2007 -009 Siskiyou North side of Mount Shasta, S of Hwy 97, along Forest Service Rd 42N73, ca 4 mi NE of town of Weed. 1090 Comment
  UC1193390  Rhamnus tomentella subsp. tomentella R. E. Nelson 1949-8-9 93 Mendocino 0.5 mi nw Hopland Fire Camp 457 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
  RSA254755  Rhododendron macrophyllum Thomas W. Nelson 1974-5-7 1239 Humboldt Beside the old Kneeland Rd. Comment
  CAS-BOT-BC56640  Rhododendron occidentale Aven Nelson; Ruth A. Nelson 1933-5-15 575 Humboldt Redwood Highway Comment
  JEPS111040  Rhus trilobata J. K. Nelson 2001-5-3 2001 -2 Shasta Gilman Road, McCloud Arm of Shasta Lake; turnoff to Pine Pt. campground. 365 Comment
  UC1925895  Ribes Donald G. Nelson 1937-4-29 559 Contra Costa lefthand side of Tunnel Road at entrance to Canyon. Oakland. Comment
  JEPS120191  Ribes binominatum Julie Kierstead Nelson with Rhonda Posey, Mary Ellen Colberg 2011-7-12 2011 -38 Siskiyou Eastern Klamath Mountains, The Eddys. Forest Road 40N45 at Pacific Crest Trail crossing south of Picayune Lake Comment
  RSA459475  Ribes binominatum Thomas W. Nelson, Jane Nelson 1976-7-26 3040 Humboldt Along ridge NW of Mount Lassic (Signal Peak) 1707 Comment
  CAS-BOT-BC169149  Ribes inerme var. klamathense Thomas W. Nelson; Jane P. Nelson 1977-5-30 3420 Humboldt Growing beside State Route 36 just west of Dinsmore at highway bridge over Van Duzen River - North Coast Ranges 731 Comment
  HSC39629  Ribes lobbii Thomas W. Nelson, Jane P. Nelson 1976-6-15 2734 Humboldt Just W of Goat Hill along road off FS 2S08 1463 Comment
  HSC69887  Ribes lobbii Thomas W. Nelson, Jane P. Nelson 1977-7-30 3665 Humboldt Beside State Rte. 36, 1 mi. E of Dinsmore. 732 Comment
  JEPS120219  Ribes lobbii Julie Kierstead Nelson 2008-8-30 2008 -009 Trinity Hayfork Divide, south of Trinity River, west of Hwy. 3 Comment
  OBI80242  Ribes malvaceum Kristen M. Nelson 2013-2-9 7 San Luis Obispo Seven Sisters Range. South of CA-41 between Atascadero and morro Bay. Along Cerro Alto Peak Trail, ca. 0.5 mile east of Cerro Alto Campground. 365 Comment
  HSC40534  Ribes roezlii Thomas W. Nelson, Jane P. Nelson 1976-5-23 2541 Trinity Along branch to Shanty Creek E side of Black Lassic 1555 Comment
  HSC71034  Ribes roezlii Thomas W. Nelson 1977-4-20 3326 Humboldt Along FS Rd. 1N15 at bridge over Mad River 762 Comment
  HSC71225  Ribes roezlii Thomas W. Nelson 1977-4-20 3333 Humboldt Along USFS Road 1N15 at summit 915 Comment
  HSC33053  Ribes sanguineum Thomas W. Nelson, Jane Cole, Brad Klipfel 1974-5-8 1241 Humboldt Horse Mtn. area 1220 Comment
  HSC39630  Ribes sanguineum Thomas W. Nelson, Jane P. Nelson 1976-6-15 2736 Humboldt Just W of Goat Hill along road off FS 2S08 1463 Comment
  HSC32923  Rigiopappus leptocladus Thomas W. Nelson, James Nelson 1973-5-28 969 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC35743  Rigiopappus leptocladus Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-20 1979 Trinity Near S end of road out Swayback Ridge Comment
  HSC40789  Rigiopappus leptocladus Thomas W. Nelson, James Nelson 1976-6-22 2789 Trinity Below Senteney Rock 1433 Comment
  HSC48145  Rigiopappus leptocladus Thomas W. Nelson, Jane P. Nelson 1978-4-30 3966 Colusa Along Hwy. 20, E of Colusa-Lake county line 549 Comment
  HSC82187  Rigiopappus leptocladus Thomas W. Nelson, Jane P. Nelson 1980-7-6 6036 Lassen Along Ash Creek at Ash Creek Campground 1494 Comment
  HSC32820  Rigiopappus leptocladus Thomas W. Nelson, D. E. Anderson 1973-5-6 841 Mendocino S of Eden Valley Ranch 640 Comment
  HSC34890  Romanzoffia californica Thomas W. Nelson 1975-5-17 1829 Trinity Beside Hwy 299, just W of Oregon Mountain Summit Comment
  UC1618115  Romneya coulteri Donald G. Nelson 1936-6-5 435 Orange Hills NE of Fullerton 91 Comment
  UC1552858  Romulea rosea var. australis Thomas W. Nelson and Jane P. Nelson 1987-4-11 8421 Humboldt Capetown North Coast Ranges (beside county road that follows Bear River, ca 100 ft from junction with State Hwy 1) 7 Comment
  HSC82603  Rorippa curvisiliqua Thomas W. Nelson, Jane P. Nelson 1979-7-7 4984 Trinity Along margin of Trinity Lake at Wyntoon Campground Comment
  HSC29878  Rorippa curvisiliqua Thomas W. Nelson 1972-4-8 604 Mendocino Beside Lake Mendocino Comment
  HSC103315  Rosa californica Thomas W. Nelson, Jane Nelson 1983-6-30 7431 Trinity Philpot Creek at Philpot Campground 762 Comment
  HSC32946  Rosa gymnocarpa Thomas W. Nelson, James Nelson 1973-5-28 957 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC36578  Rosa gymnocarpa Thomas W. Nelson, James Nelson 1975-9-3 2198 Humboldt Above junction of Maple Creek-Kneeland Rd. Comment
  HSC45401  Rosa gymnocarpa Thomas W. Nelson, Jane P. Nelson 1977-7-30 3657 Trinity S fork of Black Lassic Creek. 1463 Comment
  UC671888  Rosa spithamea Evelyn Hart Nelson 1939-8-16 45 Santa Clara roadside above spring Santa Cruz Mountains, Loma Prieta 975 Comment
  HSC81474  Rosa woodsii subsp. ultramontana Thomas W. Nelson, Jane P. Nelson 1980-7-6 6019 Lassen Along Adin-Madeline Rd. 0.5 mi. W of Moll Reservoir. 1585 Comment
  CHSC24699  Rubus spectabilis J. R. Nelson 1976-3-22 18 Mendocino 300 m e of hwy 1, 2.3 mi s of Mendocino. 15 Comment
  UC1618036  Rumex acetosella Donald G. Nelson 1935-4-15 315 Los Angeles Wilmington near the harbor Comment
  JEPS128091  Rumex californicus Julie Kierstead Nelson with Heath Bartosh, Jepson Yolla Bolly Workshop 2017-7-13 2017 -015 Trinity Yolla Bolly Wilderness; near Tehama County line: Pettijohn Basin; headwaters of the east fork of the south fork of the Trinity River. Comment
  HSC35617  Rupertia physodes Thomas W. Nelson, B. Reinhardt 1975-7-30 2112 Humboldt The road out Whiting Ridge at Whiting Spring Comment
  JEPS114176  Rupertia physodes J. K. Nelson 2006-6-17 2006 -32 Shasta Girard Ridge, 2 miles southwest of Castle Crags. Comment
  HSC35624  Salicornia depressa Thomas W. Nelson, James Nelson 1975-8-5 2137 Humboldt Along S spit of Humboldt Bay ca. 1 mi. N of Table Bluff. Comment
  UC724157  Salicornia subterminalis Aven and Ruth Nelson 1939-3-23 3230 Imperial w side Salton Sea Comment
  HSC71301  Salix breweri Thomas W. Nelson, Jane Nelson 1979-4-12 4525 Colusa Along Stony Creek below Digger Pine Campground Comment
  RSA298150  Salix exigua Thomas W. Nelson 1978-5-6 4016 Trinity Trinity River. Ca 2 miles N of Junction City. Comment
  HSC59771  Salix exigua var. hindsiana Thomas W. Nelson 1978-5-6 4016 Trinity Along Trinity River, 2 mi. N of Junction City Comment
  UC1618021  Salix exigua var. hindsiana Donald G. Nelson 1939-6-9 604 San Joaquin at junction of Austen Rd with Little John Creek (banks of creek, se of Stockton); Mount Diablo Base line Comment
  HSC37901  Salix gooddingii Thomas W. Nelson, J. P. Smith, Jane P. Nelson, James Nelson 1976-4-12 2302 Lake Beside Morgan Valley Rd., 7.8 mi. from Upper Lake 640 Comment
  HSC37902  Salix gooddingii Thomas W. Nelson, J. P. Smith, Jane P. Nelson, James Nelson 1976-4-12 2303 Lake Beside Morgan Valley Rd., 7.8 mi. from Upper Lake 640 Comment
  HSC71299  Salix gooddingii Thomas W. Nelson, Jane Nelson 1979-4-12 4627 Colusa Along Stony Creek below Digger Pine Campground Comment
  HSC38177  Salix hookeriana Thomas W. Nelson 1976-3-5 3285 Humboldt Beside Martin's Slough just upstream from Eureka Muni Golf Course Comment
  HSC37876  Salix lasiandra Thomas W. Nelson 1976-3-22 2278 Humboldt S side of the Eureka Muni Golf Course Comment
  HSC81614  Salix lasiandra Thomas W. Nelson, Jane Nelson 1980-5-8 5211 Trinity Junction of FS Rd. 2N07 and 2N10 along Indian Valley Creek Comment
  CAS-BOT-BC419729  Salix lasiandra var. lasiandra Julie Kierstead Nelson; Martin Lenz; Rhonda Posey 2014-8-13 2014 -083 Siskiyou Upper Parks Creek watershed, 2 miles NE of China Mountain, eastern Klamath Ranges. Along road/trail 41N73A. 2011 Comment
  RSA298156  Salix lasiolepis Thomas W. Nelson, Jennifer Whipple 1978-4-28 3902 Del Norte Smith River. S end of Gasquet Flat Rd. Comment
  UC1618081  Salix lasiolepis Donald G. Nelson 1939-6-14 618 San Mateo 3 mi. s of San Francisco Co, line (Skyline Blvd. due e. of Mussel Rock on coast, large permanent Sag Pond) Comment
  HSC38144  Salix scouleriana Thomas W. Nelson, James Nelson 1976-3-23 3278 Humboldt Eureka, E side of F St., 3800 block Comment
  UC1193084  Salix scouleriana R. E. Nelson 1949-8-13 99 Mendocino 1 12/ mi. e. Camp 19 (Willits-Fort Bragg Rd.); Quadrangle 45A4 152 Comment
  HSC37884  Salix sitchensis Thomas W. Nelson 1976-4-3 2286 Humboldt Van Duzen River at Grizzley Creek Comment
  HSC38182  Salix sitchensis Thomas W. Nelson 1976-11-5 3297 Humboldt Along S fork of Martins Slough, upstream from Eureka Muni Golf Course Comment
  UC1193095  Salix sitchensis R. E. Nelson 1949-8-25 106 Mendocino <locality given as Mendocino woodlands> Quad. 45A3 60 Comment
  HSC48089  Salix tracyi Thomas W. Nelson, Jennifer Whipple 1978-4-28 3903 Del Norte Smith River, S end of Gasquet Flat Rd. Comment
  UC558477  Salpichroa origanifolia Donald Nelson 1936-10-8 Alameda Univ. of Calif. Campus, Berkeley; Old Botanic Garden between Wheeler Hall and Haviland Hall Comment
  UC724236  Salvia apiana Aven and Ruth Nelson 1939-3-27 3283 San Diego foot of Banner Grand (Highway 78); Banner Grade Comment
  GH403362  Salvia funerea A. Nelson & R. E. Nelson 1939-4-4 3398 Unknown In Titus canyon, north end of Death Valley Comment
  HSC82321  Sanicula bipinnata Thomas W. Nelson, Jane P. Nelson 1978-4-1 3851 Lake E side of Walker Ridge, 0.25 mi. N of junction with Hwy. 20 Comment
  HSC32507  Sanicula bipinnatifida Thomas W. Nelson, Jane P. Nelson 1974-4-8 1142 Lake 200 m E of Oasis Resort, 13 mi. E of Clear Lake Oaks along Hwy. 20 Comment
  HSC39006  Sanicula bipinnatifida Thomas W. Nelson, Jane P. Nelson 1976-5-31 2648 Humboldt N of junction of FS Rds. 1S07 and 5E27 along 5E27 1524 Comment
  HSC82322  Sanicula bipinnatifida Thomas W. Nelson, Jane P. Nelson 1978-4-1 3852 Lake E side of Walker Ridge, 0.25 mi. N of junction with Hwy. 20 Comment
  HSC71227  Sanicula bipinnatifida Thomas W. Nelson 1977-4-20 3335 Trinity Ridge just N of Mad River Ranger Station 823 Comment
  HSC82103  Sanicula crassicaulis Thomas W. Nelson, Jane P. Nelson 1980-5-25 5264 Humboldt Along road from Dinsmore to Anderson Crossing- McKeown Ranch Rd.- 0.5 mi. NW of McKeown house 823 Comment
  RSA254741  Sanicula crassicaulis Thomas W. Nelson, James Nelson 1973-5-28 943 Humboldt McKeown Ranch north of Dinsmore. Comment
  RSA254743  Sanicula crassicaulis Thomas W. Nelson, James Nelson 1973-5-28 943 Humboldt McKeown Ranch north of Dinsmore. Comment
  HSC33139  Sanicula laciniata Thomas W. Nelson, Jane P. Nelson 1974-4-9 1172 Mendocino Near Bloody Run Creek between Longvale and Covelo. Comment
  HSC69885  Sanicula laciniata Thomas W. Nelson, Jane P. Nelson 1978-3-31 3835 Mendocino Department of Reclamation Camp Ground at Lake Mendocino Comment
  CHSC35534  Sanicula peckiana Thomas Nelson 1978-6-14 4200 Del Norte Along French Hill Rd. 8.7 miles from junction with State Route 199. Comment
  HSC69661  Sanicula peckiana Thomas W. Nelson 1978-6-14 4158 Del Norte Along French Hill Rd., 2.4 mi. from junction with Hwy. 199 Comment
  JEPS81115  Sanicula peckiana Thomas Nelson 1978-6-14 4200 Del Norte 88.7 mi from junction with State Route 199 (along French Hill Road); French Hill Road Comment
  HSC81587  Sanicula tracyi Thomas W. Nelson, Jane P. Nelson 1980-5-25 5248 Humboldt Along road from Dinsmore to Anderson Crossing, McKeown Ranch Rd. 100 m N of junction of road to Hindley Cabin 823 Comment
  HSC67312  Sanicula tuberosa Thomas W. Nelson, Jane P. Nelson 1980-5-7 5196 Trinity Shasta-Trinity National Forest, along FS Rd. 29N58, Rattlesnake Ridge, at junction with FS Rd. 30N29 1341 Comment
  HSC69867  Sanicula tuberosa Thomas W. Nelson 1978-5-28 4095 Humboldt McKeown Ranch, N of Dinsmore 762 Comment
  HSC70958  Sanicula tuberosa Thomas W. Nelson 1977-6-15 3433 Humboldt Along FS Rd. 6N01 about 1 mi. S of junction with FS Rd. 5N10 1372 Comment
  HSC82301  Scirpus congdonii Thomas W. Nelson, Jane P. Nelson 1979-6-15 4818 Trinity Trinity/Siskiyou Co. line, head of Scott Mtn. Creek at Scott Mtn. Campground 1646 Comment
  SEINET3914331  Scirpus criniger Thomas Nelson, Jennifer J. Whipple 1978-4-28 3893 Del Norte The Smith River 1.8 miles south of Hardscabble Creek.; 0 Comment
  HSC36890  Scirpus microcarpus Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-20 2058 Humboldt Beside Rd. 2S08 to Pine Mtn. Comment
  HSC71109  Scirpus microcarpus Thomas W. Nelson, Jane P. Nelson, J. P. Smith 1978-7-24 4501 Siskiyou Along W side of Hwy. 3, just N of Scott Mtn. Summit 1616 Comment
  SEINET3914801  Scirpus microcarpus Thomas W. Nelson, James Nelson 1976-7-28 3048 Humboldt Flora of the Lassics. At Alder Springs along 2S08.; 0 1554 Comment
  HSC40102  Scirpus microcarpus Thomas W. Nelson, James Nelson 1976-7-28 3048 Humboldt Alder Springs Campground along 2S08 1555 Comment
  HSC69804  Scleranthus annuus Thomas W. Nelson, Jane P. Nelson 1978-3-25 3818 Trinity Along Indian Creek near junction with Trinity River 488 Comment
  HSC82531  Scleranthus annuus Thomas W. Nelson 1979-5-13 4666 Trinity At junction of county roads NE of Rees Brothers Coal Mine. 579 Comment
  UC1543212  Scoliopus bigelovii Donald G. Nelson 1938-1-22 557 Marin canyon n.w. Mill Valley business district (roadside bank near stream, near Mt. Tamalpais) Comment
  UC671987  Scrophularia californica Evelyn Hart Nelson 1939-10-22 55 Santa Clara Loma Prieta; Santa Cruz Mts 975 Comment
  HSC70094  Scutellaria antirrhinoides Thomas W. Nelson, Jane P. Nelson 1978-6-22 4306 Trinity Along branch rd. off Dubakella Rd. 2 mi. from junction with Red Mtn. Motorway, SW of S Dubakella 1555 Comment
  HSC71140  Scutellaria antirrhinoides Thomas W. Nelson, Jane P. Nelson, J. P. Smith 1978-7-23 Shasta Along the road to Bully Choop, 9 mi. from junction with County Rd. A16 Comment
  HSC82011  Scutellaria antirrhinoides Thomas W. Nelson, Jane P. Nelson 1979-6-15 4842 Trinity Mouth of Bear Creek 915 Comment
  HSC82077  Scutellaria antirrhinoides Thomas W. Nelson, Jane P. Nelson 1980-6-17 5490 Trinity Along Old State Route 3, 1 mi. from junction with State Route 3; opposite entrance to Philpot Campground 762 Comment
  HSC82154  Scutellaria antirrhinoides Thomas W. Nelson, Jane P. Nelson 1979-6-25 4914 Trinity Stuart Gap 1524 Comment
  HSC33133  Scutellaria tuberosa Thomas W. Nelson, Jane P. Nelson 1974-4-9 1166 Mendocino Near Bloody Run Creek between Longvale and Covelo. Comment
  UC1618101  Scutellaria tuberosa Donald G. Nelson 1935-7-6 258 Orange San Juan Canyon Comment
  HSC82491  Sedum laxum subsp. flavidum Thomas W. Nelson, Jane Nelson 1980-6-22 5758 Trinity Along FS Rd. 29N28, 7 mi. from junction with State Rte. 36 1372 Comment
  HSC32850  Sedum radiatum Thomas W. Nelson, D. E. Anderson 1973-5-6 849 Mendocino SE end of Eden Valley Comment
  HSC33095  Senecio aronicoides Thomas W. Nelson, Jane P. Nelson 1974-5-27 1323 Mendocino Mendocino National Forest near Mendocino Pass 1524 Comment
  HSC81632  Senecio aronicoides Thomas W. Nelson, Jane P. Nelson 1980-7-17 6113 Trinity Along FS Rd. 17 at summit at county line 2073 Comment
  UC1543201  Senecio aronicoides Donald G. Nelson 1940-4-30 653 Lake s Clearlake (between Middletown and Kelseyville, Loch Lomond precisely at summit of the grade); Cobb Mt., Loch Lomond precisely at summit of the grade Comment
  UCR66508  Senecio eurycephalus Thomas W. Nelson, J. P. Smith, Jane P. Nelson, et al. 1976-4-12 2348 Napa along Morgan Valley Rd. c. 1.5 mi east of Lake Co. line 633 Comment
  RSA273383  Senecio eurycephalus Thomas W. Nelson, J. P. Smith, Jane P. Nelson, James Nelson 1976-4-12 2348 Napa Along Morgan Valley Rd. ca 1.5 mi E of Lake Co. line Comment
  RSA293097  Senecio greenei Thomas W. Nelson, Jane P. Nelson 1980-6-17 5519 Trinity Shasta-Trinity National Forest; across Salt Creek from Salt Creek Campground. 915 Comment
  HSC69991  Senecio integerrimus Thomas W. Nelson, Jane P. Nelson 1978-6-22 4298 Trinity Along branch rd. off Dubakella Rd. 2 mi. from jct. with Red Mtn. Motorway 1555 Comment
  HSC26637  Senecio integerrimus Thomas W. Nelson 1971-5-31 458 Humboldt 915 Comment
  HSC67343  Senecio integerrimus var. major Thomas W. Nelson 1980-5-30 5362 Trinity Along Rd. 60 (Underwood Mtn. Rd.), 10 mi. S from junction with Hwy. 299 1341 Comment
  HSC22024  Senecio jacobaea Thomas W. Nelson 1970-11-22 309 Mendocino Along Little Lake Road. Mendocino Woodlands Comment
  HSC34964  Senecio jacobaea Thomas W. Nelson 1974-9-21 1726 Del Norte Along Patricks Creek Comment
  RSA293130  Senecio macounii Thomas W. Nelson 1978-6-14 4201 Del Norte Along French Hill Rd. 8.7 mi from jct. with State Route 199. Comment
  HSC40179  Senecio scorzonella Thomas W. Nelson, Jane P. Nelson 1976-8-1 3134 Shasta Lassen Volcanic National Park, Kings Creek Meadow Comment
  CAS-BOT-BC85844  Sequoia sempervirens Aven Nelson; Ruth A. Nelson 1933-5-15 587 Humboldt Redwood Highway Comment
  CHSC110653  Sericocarpus oregonensis Julie Kierstead Nelson 2008-8-29 2008 -006 Trinity Corral Bottom, south of Trinity River, northwest of Hayfork Bally. Comment
  CDA20438  Sesbania herbacea P. Nelson 2002-9-4 PDR P 161602 Imperial Sonoran Desert; Kavanaugh & Highline Canal. 0 Comment
  HSC26233  Setaria pumila Thomas W. Nelson 1972-11-25 706 Placer Beside Del Oro Rd., near Roseville, Ca Comment
  JEPS97199  Shepherdia canadensis Julie Kierstead Nelson with Maria Ulloa-Cruz 1995-8-22 95053 Siskiyou upslope from Parks Creek Road (Rd. 17), 5.25 mi above junction with Stewart Springs Rd., on the W slope of Parks Creek drainage Shasta-Trinity National Forests, Mt. Shasta Ranger District 1737 Comment
  RSA254822  Sidalcea diploscypha Thomas W. Nelson, B. Anderson 1973-5-5 882 Mendocino North of Eden Valley Ranch overlooking Eden Creek along jeep road to Roberts Lake 640 Comment
  HSC35615  Sidalcea malviflora Thomas W. Nelson, B. Reinhardt 1975-7-30 2111 Humboldt Whiting Spring Comment
  JEPS106461  Sidalcea malviflora J. K. Nelson 2004-5-15 2004 -44 Shasta Stillwater Creek floodplain, ca. 15 mi NE of Redding. 182 Comment
  HSC35603  Sidalcea malviflora subsp. nana Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2009 Humboldt French Camp, Bald Hills. Comment
  HSC69643  Sidalcea malviflora subsp. nana Thomas W. Nelson 1978-6-14 4148 Del Norte Along French Hill Rd. 0.6 mi. from junction with Hwy. 199 Comment
  HSC82482  Sidalcea malviflora subsp. nana Thomas W. Nelson, Jane Nelson 1979-6-14 4792 Trinity W side of Hwy. 3, across Trinity River from mouth of Bear Creek 915 Comment
  HSC104120  Sidalcea oregana Julie Kierstead Nelson, Wendy Boes 2012-7-6 2012064 Trinity Corral Gulch, .5 mi. NW of Indian Valley Guard Station, west of Forest Service Rd. 2N10; 9 mi. W of Hayfork 1200 Comment
  HSC28270  Sidalcea oregana Thomas W. Nelson 1973-7-14 1094 Trinity At Head of trail to Deadfall Lake Comment
  HSC95869  Sidalcea oregana subsp. eximia Thomas W. Nelson, Jane P. Nelson 1987-5-25 8517 Del Norte Coastal Meadows at Point Saint George. 30 Comment
  HSC82270  Sidalcea oregana subsp. oregana Thomas W. Nelson, Jane Nelson 1980-7-6 5996 Lassen Along Adin-Madelin Rd., 16 mi. E of Adin in Ash Valley 1555 Comment
  HSC40101  Sidalcea oregana subsp. oregana Thomas W. Nelson, James Nelson 1976-7-28 3045 Humboldt Alder Springs Campground along 2S08 1555 Comment
  HSC71104  Sidalcea oregana subsp. spicata Thomas W. Nelson, Jane Nelson, J. P. Smith 1978-7-24 4510 Siskiyou Along W side of Hwy. 3 just N of Scott Mtn. Summit 1616 Comment
  HSC71205  Silene Thomas W. Nelson, Jane P. Nelson 1979-5-19 4684 Trinity Along Hwy. 3, about 1/2 mi. S of Hayfork 701 Comment
  HSC81879  Silene Thomas W. Nelson, D. Gordon 1980-5-7 5175 Trinity E side of Vista Lane, 5 mi. N of junction with Highland Dr., 3 mi. N of Hyampom Rd. 671 Comment
  HSC39603  Silene bernardina Thomas W. Nelson, Jane P. Nelson 1976-7-9 2986 Trinity Just above Senteney Rock along 5E27 S of meadow 1524 Comment
  CHSC35611  Silene bolanderi Thomas W. Nelson 1980-5-30 5372 Trinity Six Rivers National Forest. Along road 4N09 1.9 miles from junction with road 60 (Underwood Mountain Road). 1127 Comment
  CAS-BOT-BC181200  Silene campanulata subsp. glandulosa Thomas W. Nelson; Jane P. Nelson 1980-7-21 6160 Siskiyou Along Forest Service Road 40N08 ca. .6 miles from junction with State Route 3. 1645 Comment
  HSC40038  Silene campanulata subsp. glandulosa Thomas W. Nelson, Jane P. Nelson 1976-7-1 2889 Trinity Along 5E27 just N of its junctions with 1S07 1524 Comment
  HSC40807  Silene campanulata subsp. glandulosa Thomas W. Nelson, Jane P. Nelson 1976-7-1 2965 Trinity Along 5E27 just N of its junctions with 1S07 1555 Comment
  HSC81676  Silene campanulata subsp. greenei Thomas W. Nelson, Jane P. Nelson 1980-7-21 6160 Siskiyou Along FS Rd. 40N08, 0.6 mi. from junction with Hwy. 3 1646 Comment
  HSC38072  Silene laciniata subsp. californica Thomas W. Nelson, James Nelson 1976-5-30 2635 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC59787  Silene laciniata subsp. californica Thomas W. Nelson, Jane P. Nelson 1978-6-23 4316 Trinity Along FS Rd. 30, 1 mi. S of junction with Hwy. 36 Comment
  HSC69668  Silene laciniata subsp. californica Thomas W. Nelson, J. O. Sawyer 1978-6-9 4136 Trinity Red Mtn. 1250 Comment
  CAS-BOT-BC389070  Silene laciniata subsp. californica Thomas W. Nelson; Jane P. Nelson 1980-7-13 6059 Humboldt North Coast Ranges. Along the road from Dinsmore to Anderson Ford-McKeown Ranch road 762 Comment
  HSC35749  Silene laciniata subsp. californica Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 1993 Humboldt French Camp, 20 mi. E of Hwy. 101 Comment
  CAS-BOT-BC389454  Silene lemmonii Thomas W. Nelson; Jane P. Nelson 1979-6-14 4776 Trinity Along Trinity River and Old State Route 3 north of Eagle Creek Campground 822 Comment
  UC1543018  Silene scouleri subsp. grandis Donald G. Nelson 1937-7-10 527 Marin Point Reyes Lighthouse Point Reyes Lighthouse (by car parking area at topof hill) Comment
  HSC103449  Silene serpentinicola Thomas W. Nelson, Jane Nelson 1987-5-24 8981 Del Norte Along Road 305 (Low Divide Road), 6 mi. N of junction with North Bank Rd. 640 Comment
  HSC27086  Smilax californica Thomas W. Nelson 1973-7-14 1069 Trinity Comment
  JEPS120258  Smilax californica Julie Kierstead Nelson with Rhonda Posey, Mary Ellen Colberg 2011-7-12 2011 -41 Siskiyou Eastern Klamath Mountains, The Eddys. County Road 26, south side of Siskiyou lake, ca. 3 miles SW of Mt. Shasta City Comment
  HSC34663  Solidago elongata Thomas W. Nelson, J. O. Sawyer 1974-10-29 1740 Siskiyou Hwy. 3, just S of Calaghan Comment
  UC671959  Sonchus oleraceus Evelyn Hart Nelson 1940-3-20 87 Santa Clara Loma Prieta Santa Cruz Mountains, Loma Prieta 975 Comment
  HSC35924  Spergularia rubra Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-20 1970 Trinity Near S end of road out Swayback Ridge Comment
  UC700965  Sphaeralcea ambigua var. ambigua Aven and Ruth Nelson 1939-4-4 3420 Inyo near mouth Titus Canyon; Death Valley Comment
  GH420973  Sphaeralcea angustifolia A. Nelson & R. A. Nelson 1939-3-30 3345 Unknown hiway [highway] 60, near Desert Center, between Mecca and Blythe Comment
Read comments
Mar 8 2013
  HSC22017  Spiraea douglasii Thomas W. Nelson 1970-10-17 247 Del Norte Beside Hwy. 101, Crescent City Comment
  JEPS120235  Spiraea douglasii Julie Kierstead Nelson with Martin Lenz, Rhonda Posey, Don Lepley, Brenna Montagne 2012-8-31 2012 -090 Shasta Forest Road 37N30 along Peavine Creek, north of Pit River, west of Hwy. 89, south of Red Mountain, near PAcific Crest Trail; southern Cascades Comment
  HSC81747  Spiraea splendens var. splendens Thomas W. Nelson, Jane P. Nelson 1980-7-20 6187 Siskiyou Above and to SE of Big Carmen Lake 1738 Comment
  HSC82433  Stachys ajugoides Thomas W. Nelson, Jane P. Nelson, R. J. Cole 1979-7-27 5061 Tehama Along old logging rd. W side of USFS Rd. at Pole Corral Gap 1311 Comment
  UC671995  Stachys ajugoides var. rigida Evelyn Hart Nelson 1939-8-16 32 Santa Clara Loma Prieta Santa Cruz Mountain 975 Comment
  JEPS123416  Stachys rigida Julie Kierstead Nelson with Marie Buell 2015-7-14 2015 -078 Trinity Yolla Bolly Wilderness; near Tehama County line; 0.3 miles W of North Yolla Bolly; headwaters of the east for of the south Fork of Trinity River. Comment
  HSC82513  Stachys rigida var. rigida Thomas W. Nelson, Jane P. Nelson 1979-6-14 4767 Trinity Along Trinity River and old Hwy. 3, N of Eagle Creek Campground 823 Comment
  HSC40121  Stachys rigida var. rigida Thomas W. Nelson, James Nelson 1976-7-28 3069 Trinity Along 2S08 on S side of Goat Mtn. 1555 Comment
  RSA254861  Stellaria nitens Thomas W. Nelson, D. E. Anderson 1973-5-5 805 Mendocino Roberts Lake area of Eden Valley north of Eden Valley Ranch. Comment
  HSC32538  Stephanomeria virgata Thomas W. Nelson 1973-8-19 1115 Humboldt McKeown Ranch N of Dinsmore Comment
  RSA254758  Stephanomeria virgata Thomas W. Nelson 1973-9-3 1122 Humboldt McKeown Ranch north of Dinsmore Comment
  HSC44167  Stipa lemmonii Thomas W. Nelson, Jane P. Nelson 1977-6-19 3532 Trinity Above Senteney Rock. 1555 Comment
  HSC44187  Stipa lemmonii Thomas W. Nelson, Jane P. Nelson 1977-6-19 3468 Trinity S of Senteney Rock 1524 Comment
  HSC82570  Stipa occidentalis var. californica Thomas W. Nelson, Jane P. Nelson 1979-5-26 4731 Trinity Eagle Creek Campground 823 Comment
  CAS-BOT-BC61044  Streptanthella longirostris Aven Nelson; Ruth Nelson 1939-4-2 3383 Inyo Between Silurian Lake and Shoshone, Highway 127. Comment
  HSC103779  Streptanthus Thomas W. Nelson, Joe Molter 2004-6-21 9256 Shasta Along road to PG&E dam #6, 3.1 mi. from junction with Big Bend Rd. 673 Comment
  HSC67203  Streptanthus barbatus Thomas W. Nelson, Jane P. Nelson 1980-6-16 5454 Trinity Shasta-Trinity National Forest, just N of Philpot Campground 793 Comment
  HSC68862  Streptanthus barbatus Thomas W. Nelson, Jane P. Nelson 1980-6-22 5732 Trinity Shasta-Trinity National Forest, along Hwy. 36 on ridge between Salt Creek and Muldoon Gulch, 2.5 mi. W of junction with FS Rd. 30 1311 Comment
  HSC72236  Streptanthus barbatus Thomas W. Nelson, Jane P. Nelson 1980-8-21 6261 Trinity Along FS Rd. 29N62, 0.4 mi. from junction with FS Rd. 29N58 1372 Comment
  HSC71172  Streptanthus barbatus Thomas W. Nelson, Jane P. Nelson 1978-7-24 4494 Siskiyou Siskiyou-Trinity Co. line, along road to Carmen Lake, 100 m from junction with Hwy. 3 1585 Comment
  HSC103504  Streptanthus barbiger Thomas W. Nelson, Jane Nelson 1985-5-25 7800 Lake Junction of State Routes 175 & 29, 4 mi. S of Lakeport 396 Comment
  CHSC35522  Streptanthus breweri Thomas W. Nelson; Jane P. Nelson 1980-6-22 5780 Trinity Along forest road 30 10 miles south of junction with State Route 36 and 1.5 miles west of junction with road to Pine Root Spring. 1463 Comment
  HSC68762  Streptanthus breweri Thomas W. Nelson, Jane P. Nelson 1980-6-17 5531 Trinity Shasta-Trinity National Forest, along FS Rd. 1N12, 1.1 mi. from junction with FS Rd. 2N07 1006 Comment
  HSC68891  Streptanthus breweri Thomas W. Nelson, Jane P. Nelson 1980-6-19 5659 Trinity Shasta-Trinity National Forest, along FS Rd. 29N59, 0.5 mi. E of junction with FS Rd. 30N29, Rattlesnake ridge 1433 Comment
  CAS-BOT-BC61259  Streptanthus breweri Thomas Nelson; Jane P. Nelson 1980-6-20 5718 Trinity Shasta-Trinity National Forest. Along road 29N73 1.6 mile south of junction with State Route 36. 1219 Comment
  HSC44061  Streptanthus breweri Thomas W. Nelson 1977-7-4 3587 Humboldt W side of road N of Alder Springs, head of N Fork of Conley Creek 1494 Comment
  HSC44068  Streptanthus breweri Thomas W. Nelson, Jane P. Nelson 1977-7-1 3543 Humboldt Ridge N side of Bear Creek, 100 m W of FS Rd. 1S07 Comment
  HSC68777  Streptanthus breweri Thomas W. Nelson, Jane P. Nelson 1980-6-19 5638 Trinity Along Old Hwy. 36 (Post Creek Rd.) at bridge over Glade Creek 884 Comment
  HSC96626  Streptanthus breweri Thomas W. Nelson, Dick Brummitt, Barbara Ertter 2004-7-1 9271 Mendocino NE of Eden Valley, along road to Roberts Lake 762 Comment
  RSA430015  Streptanthus breweri Thomas W. Nelson, Jane P. Nelson 1977-7-4 3587 Humboldt Along W side of road north of Alder Spring, head of N Fork of Conley Creek. 1494 Comment
  HSC67001  Streptanthus drepanoides Thomas W. Nelson, Jane P. Nelson 1980-6-22 5827 Shasta Shasta-Trinity National Forest, junction of FS Rd. 41 and FS Rd. 28N08 1220 Comment
  HSC67002  Streptanthus drepanoides Thomas W. Nelson, Jane P. Nelson 1980-6-22 5815 Tehama Along road to Wells Creek Campground, 1 mi. SE of Tedoc Gap 1311 Comment
  HSC71050  Streptanthus drepanoides Thomas W. Nelson, Jane P. Nelson 1978-6-23 Trinity Along FS Rd. 30, 1 mi. S of junction with Hwy. 36 Comment
  HSC38202  Streptanthus glandulosus Thomas W. Nelson, J. P. Smith, Jane P. Nelson, James Nelson 1976-4-13 2377 Lake 3.3 mi. E of Bartlet Springs 534 Comment
  UC671904  Streptanthus glandulosus subsp. glandulosus Evelyn Hart Nelson 1940-6-26 140 Santa Clara fire trail toward Mount Chaui; Santa Cruz Mountains, Loma Prieta 1005 Comment
  SEINET10768182 Image available Streptanthus oblanceolatus Thomas W. Nelson, Jane P. Nelson 2004-6-2 Nelson 9217 Trinity T5N, R6E, Sec. 3. UTM N 459111 E 45212.. Steep Bluff along State Route 299, 100 m east of boundry of Shasta-Trinity National Forest ca. 1.61 km west of Burnt Ranch. 424 Comment
  JEPS98764  Streptanthus tortuosus Julie Kierstead Nelson 2000-5-5 2000 -30 Shasta W side of Shasta Lake (below N ridge of Charlie Creek watershed, S of Forest Service Road 35N06); Shasta-Trinity National Forest, Shasta Lake Ranger District 883 Comment
  RSA429549  Streptanthus tortuosus Thomas W. Nelson, Jane P. Nelson 1977-6-19 3473 Trinity South of Senteney Rock. 1524 Comment
  HSC97092  Streptanthus tortuosus var. pallidus Thomas W. Nelson, Susan Erwin 2006-5-19 9410 Trinity Along Forest Service Rd. 29N22. Approx. 30 miles South of junction with Forest Service Rd. 29N58 Comment
  HSC32671  Streptanthus tortuosus var. tortuosus Thomas W. Nelson 1973-7-10 1022 Trinity Red Lassic area 1799 Comment
  HSC44062  Streptanthus tortuosus var. tortuosus Thomas W. Nelson, Jane P. Nelson 1977-6-19 3473 Trinity S of Senteney Rock 1524 Comment
  JEPS97194  Streptopus amplexifolius var. americanus Julie Kierstead Nelson with Maria Ulloa-Cruz 1995-8-22 95054 Siskiyou 1 1/2 mi W of The Eddys (on Parks Creek Road (Rd. 17); W slope of Parks Creek drainage); Shasta-Trinity National Forests, Mt. Shasta Ranger District 1737 Comment
  HSC70160  Swertia albicaulis var. nitida Thomas W. Nelson, Jane P. Nelson 1978-7-21 4421 Trinity Along Hwy. 3, 1/4 mi. S of Salt Creek Bridge 762 Comment
  HSC82462  Swertia albicaulis var. nitida Thomas W. Nelson, Jane P. Nelson 1979-6-14 4775 Trinity Along Trinity River and old Hwy. 3, N of Eagle Creek Campground 823 Comment
  HSC35812  Symphoricarpos mollis Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-21 1923 Trinity Brown's Canyon Campground. Comment
  HSC36490  Symphyotrichum subspicatum Thomas W. Nelson, James Nelson 1975-9-3 2195 Humboldt At Rainbow Swinging Bridge Comment
  HSC40200  Synthyris cordata Thomas W. Nelson, Jane Nelson 1977-4-2 3299 Del Norte S of mouth of Hard Scrabble Creek Comment
  CHSC78086  Taraxia ovata Terry Nelson 1998-4-4 240 -2 Lake In a pasture 6 mi w of jct of Hwys 20 and 16, 150 ft. se of the jct of Hwy 20 and Walker Ridge Rd. 606 Comment
  UC1618074  Tauschia arguta Donald G. Nelson 1935-7-6 242 Orange San Juan Canyon; near stream Comment
  HSC69650  Tauschia glauca Thomas W. Nelson 1978-6-14 4156 Del Norte Along French Hill Rd., 2.4 mi. from junction with Hwy. 199 Comment
  HSC81199  Tauschia glauca Thomas W. Nelson, Jane P. Nelson 1981-7-27 6225 Del Norte Along Patricks Creek Rd. (316), 2 mi. S of junction with Weimer Rd. 762 Comment
  RSA296761  Tauschia glauca Thomas W. Nelson 1978-6-14 4156 Del Norte Along French Hill road, 2.4 miles from jct. with St. Route 199. Comment
  RSA259589  Tauschia kelloggii Thomas W. Nelson, James Nelson 1975-5-24 1840 Humboldt McKeown Ranch north of Dinsmore Comment
  HSC38097  Taxus brevifolia Thomas W. Nelson, James Nelson 1976-5-30 2619 Humboldt McKeown Ranch, N of Dinsmore. Comment
  JEPS116629  Thelypodium laciniatum Julie Kierstead Nelson with Rhonda Posey 2007-6-15 2007 -006 Siskiyou North side of Mt. Shasta, south of Hwy 97, Juniper Flat Mt. Shasta 1090 Comment
  HSC96004  Thermopsis californica var. californica Thomas W. Nelson, Jane Nelson 1981-5-3 6461 Sonoma 4809 Pressley Rd., 2 mi. N of junction with Roberts Rd. Comment
  JEPS120252  Thermopsis gracilis Julie Kierstead Nelson 2012-5-5 2012 -017 Shasta Clikapudi Trail near boat ramp. Bella Vista Quadrangle, 1998. Comment
  JEPS128454  Thermopsis gracilis Julie Kierstead Nelson with Dylan Burge, Lusetta Sims, Jenny Cribbs 2015-6-4 2015 -053 Trinity East slope of Trinity Alps, west of Trinity Lake, south of road to Stonewall Pass trailhead, spur off Road 35N73Y. Comment
  JEPS128838  Thermopsis gracilis Julie Kierstead Nelson with Martin Lenz 2017-5-5 2017 -005 Shasta Upper Sacramento River watershed, west of I-5, west of Gibson, eastern Klamath Ranges. Along Highland Lakes Road, 38N21. Comment
  UC1584278  Thermopsis gracilis Julie Kierstead Nelson 1990-4-20 90 -22 Shasta Gilman Road (FR 7H009) 6.4 mi e junction with Interstate 5; Shasta Lake Ranger District 457 Comment
  RSA259571  Thermopsis macrophylla var. agnina Thomas W. Nelson, James Nelson, Jane P. Nelson 1975-7-15 2000 Humboldt Growing on Serpentine outcrop at Franch Camp, Bald Hills Comment
  HSC12833  Thuja plicata Thomas W. Nelson, Wilbur Peterson 1970-12-2 301 Humboldt HSC Campus SE side of field house Comment
  UC1543094  Thysanocarpus curvipes Donald G. Nelson 1937-3-30 465 Contra Costa on bank of creek along Marsh Creek Highway about halfway between Clayton and Byron; along Marsh Creek Highway Comment
  HSC38208  Tolmiea diplomenziesii Thomas W. Nelson, J. P. Smith 1976-4-25 2382 Humboldt Brazil Ranch E of Hwy. 101 near College of the Redwoods Comment
  CHSC105878  Tonella tenella Julie Kierstead Nelson 2010-5-9 2010 -006 Trinity East slope of Lewiston Lake; unnamed drainage near WAPA powerline at crossing of Rd 34N13. 1036 Comment
  HSC33046  Torilis arvensis Thomas W. Nelson, Jane P. Nelson 1974-5-27 1339 Mendocino Mendocino Pass, 4 mi. SE of the Eel River Campground Comment
  HSC45466  Torilis arvensis Thomas W. Nelson, Jane P. Nelson 1978-7-2 4387 Humboldt Along Hwy. 36 1 mi. E of Grizzly Creek Comment
  SEINET10872333  Torreya californica Aven Nelson, Ruth A. Nelson 1933-5-6 Nelson 533 Unknown Lower Merced Canyon. Comment
  HSC97091  Toxicoscordion micranthum Thomas W. Nelson, Susan Erwin 2006-5-19 9409 Trinity At junction of Forest Service Roads 29, 29N58 and 29N59 1351 Comment
  HSC27392  Trichostema lanceolatum Thomas W. Nelson 1970-9-3 210 Humboldt Mad River. Comment
  HSC32531  Trichostema lanceolatum Thomas W. Nelson 1973-9-3 1131 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC44328  Trichostema laxum Thomas W. Nelson, Jane P. Nelson 1977-8-6 3700 Humboldt Above Alder Spring 1616 Comment
  HSC81619  Trichostema laxum Thomas W. Nelson, Jane P. Nelson 1980-8-4 6231 Humboldt Above Alder Springs along old trail 1585 Comment
  HSC33191  Trifolium albopurpureum Thomas W. Nelson 1974-4-21 1190 Mendocino Hills W of Eden Valley Ranch Comment
  CAS-BOT-BC465602  Trifolium breweri Julie Kierstead Nelson; Dylan O. Burge; Lusetta Sims; Jenny Cribbs 2015-6-4 2015 -051 Trinity East slope of Trinity Alps, W of Trinity Lake, S of road to Stonewall Pass trailhead, spur off Road 35N73Y 1273 Comment
  HSC82461  Trifolium breweri Thomas W. Nelson, Jane P. Nelson 1979-6-14 4774 Trinity Along Trinity River and old Hwy. 3, N of Eagle Creek Campground 823 Comment
  HSC95899  Trifolium breweri Thomas W. Nelson, Sydney Carothers 2002-6-28 9116 Del Norte Along Gasquet Toll Rd. at junction with transfer station 137 Comment
  HSC38112  Trifolium ciliolatum Thomas W. Nelson, Jane P. Nelson, James Nelson, J. P. Smith 1976-4-13 2368 Lake Along Bartlet Springs Rd., 0.6 mi. from its junction with Hwy. 20 Comment
  UC1543222  Trifolium ciliolatum Donald G. Nelson 1935-4-6 217 a Orange e San Juan Capistrano (San Juan Canyon, just s of Cleveland National Forest boundary) Comment
  HSC68875  Trifolium eriocephalum Thomas W. Nelson, Jane P. Nelson 1980-6-20 5689 Trinity Hill above FS 29N55 at jct. with spur road, 5.6 mi. S of junction with Hwy. 36 1677 Comment
  HSC28171  Trifolium fragiferum Thomas W. Nelson 1973-7-24 1099 Humboldt Flood plain of the Mad River at the Carson R.R. bridge Comment
  RSA296715  Trifolium fragiferum Thomas W. Nelson 1973-7-24 1099 Humboldt On the flood plain of the Mad River at the north end of the Carson railroad bridge. Comment
  HSC32750  Trifolium fucatum Thomas W. Nelson, Jane P. Nelson 1973-4-23 764 Mendocino E of Eden Valley Ranch along Toney Creek 640 Comment
  HSC38085  Trifolium gracilentum Thomas W. Nelson, James Nelson 1976-5-30 2606 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC71103  Trifolium longipes Thomas W. Nelson, Jane P. Nelson, J. P. Smith 1978-7-24 4509 Siskiyou Along W side of Hwy. 3 just N of Scott Mtn. Summit 1616 Comment
  HSC81684  Trifolium longipes Thomas W. Nelson, Jane P. Nelson 1980-7-20 6167 Siskiyou Above and to SE of Big Carmen Lake 1738 Comment
  HSC82302  Trifolium longipes Thomas W. Nelson, Jane P. Nelson 1979-6-15 4819 Trinity Trinity-Siskiyou County line, head of Scott Mtn. Creek at Scott Mtn. Campground. 1646 Comment
  HSC82379  Trifolium longipes Thomas W. Nelson, J. P. Smith, Jane P. Nelson 1978-7-24 4532 Siskiyou Siskiyou-Trinity County line, head of Scott Mtn. Creek, S of Forest Service campground 1646 Comment
  HSC71812  Trifolium longipes subsp. oreganum Thomas W. Nelson, Jane P. Nelson 1980-6-27 5932 Trinity Along Rd. 2S08 0.6 mi. S of junction with Rd. 1S07 1646 Comment
  HSC82576  Trifolium oliganthum Thomas W. Nelson 1979-5-13 4663 Trinity At junction of county roads NE of Rees Brothers Coal Mine. 579 Comment
  HSC33188  Trifolium olivaceum Thomas W. Nelson 1974-4-21 1188 Mendocino Hills W of Eden Valley Ranch Comment
  HSC26673  Trifolium pratense Thomas W. Nelson 1972-11-25 703 Placer Del Oro Rd. near Roseville Comment
  HSC38364  Trifolium willdenovii Thomas W. Nelson 1976-5-4 2414 Mendocino Along N side of BLM road to Red Mtn. 427 Comment
  UC1543244  Trifolium willdenovii Donald G. Nelson 1937-3-30 474 Contra Costa s Byron (on rd to Tracy along rr tracks paralleling hwy) Comment
  RSA517735  Trifolium willdenovii Donald G. Nelson 1937-3-30 474 Contra Costa Railroad tracks paralleling the highway south of Byron on road to Tracy Comment
  HSC32800  Trillium albidum Thomas W. Nelson, Jane P. Nelson 1973-4-14 727 Trinity E of the USFS campground at Salt Creek Comment
  CHSC111310  Trillium chloropetalum Julie Kierstead Nelson; Martin Lenz, Rhonda Posey, Brenna Montagne 2013-4-10 2013 -001 Shasta Wheeler Ranch north of Shasta Lake, along Squaw Cree; UTM Zone 10N, 57697E 453227N. Damp swale below Rd. 35N07. 480 Comment
  HSC26329  Triphysaria eriantha subsp. eriantha Thomas W. Nelson 1971-4-16 382 Humboldt N of Coast Guard Station on Samoa Peninsula Comment
  HSC82328  Triphysaria eriantha subsp. eriantha Thomas W. Nelson, Jane Nelson 1978-4-1 3858 Lake E side of Walker Ridge, 0.25 mi. N of junction with Hwy. 20 Comment
  HSC26831  Triphysaria eriantha subsp. eriantha Thomas W. Nelson 1971-3-23 349 Sonoma 3 mi. S of Healdsburg Comment
  HSC34693  Triphysaria versicolor subsp. faucibarbata Thomas W. Nelson, James Nelson 1975-5-8 1813 Sonoma Beside Hwy. 101 just S of Ash Creek near the Mendocino-Sonoma Co. line Comment
  HSC82505  Trisetum cernuum Thomas W. Nelson, Jane P. Nelson 1979-6-14 4759 Trinity Along Trinity River and old Hwy. 3, N of Eagle Creek Campground 823 Comment
  HSC69644  Triteleia bridgesii Thomas W. Nelson 1978-6-14 4149 Del Norte Along French Hill Rd. 0.6 mi. from junction with Hwy. 199 Comment
  HSC69662  Triteleia bridgesii Thomas W. Nelson 1978-6-14 4159 Del Norte Along French Hill Rd., 2.4 mi. from junction with Hwy. 199 Comment
  HSC81786  Triteleia bridgesii Thomas W. Nelson, Jane P. Nelson 1980-6-17 5512 Trinity Along Salt Creek Rd. between Salt Creek Campground and junction of Rd. 30N24 915 Comment
  HSC69982  Triteleia crocea Thomas W. Nelson, Jane P. Nelson 1978-6-22 4295 Trinity Along Dubakella Rd., 4.8 mi. from junction with Hwy. 36 1527 Comment
  HSC35811  Triteleia hyacinthina Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-21 1925 Trinity Browns Canyon Campground Comment
  HSC68750  Triteleia hyacinthina Thomas W. Nelson, Jane P. Nelson 1980-6-18 5594 Trinity Shasta-Trinity National Forest, along FS Rd. 1N10, 1 mi. from junction with FS Rd. 2N07 1372 Comment
  HSC82232  Triteleia laxa Thomas W. Nelson 1979-4-10 4592 Placer Along W side of Sierra College Blvd. between I-80 and Douglas Blvd. Comment
  HSC35868  Triteleia laxa Thomas W. Nelson, James Nelson 1975-8-5 2126 Humboldt Beside rd. to Table Bluff 1.0 mi. W of Copenhagen Rd. Comment
  HSC35965  Triteleia laxa Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-21 1949 Humboldt Hwy. 36, 5 mi. E of Bridgeville Comment
  HSC69682  Triteleia laxa Thomas W. Nelson, J. O. Sawyer 1978-6-9 4109 Trinity Along FS 27N02, 1.5 mi. S of junction with county road at Three Forks of Mad River. Comment
  HSC82276  Triteleia laxa Thomas W. Nelson, Jane P. Nelson 1980-6-26 5922 Mendocino Along Covelo-Zenia County Rd. 303, 11.5 mi. N of junction with State Rte. 162 915 Comment
  UC724132  Trixis californica var. californica Aven and Ruth Nelson 1939-3-25 3273 San Diego on trail to Palm Grove Canyon (Borego Desert); Borego Desert Comment
Read comments
Sep 10 2011
  HSC71308  Umbellularia californica Thomas W. Nelson, Jane P. Nelson 1979-4-12 4618 Colusa Along Stony Creek below Digger Pine Campground Comment
  JEPS111013  Umbellularia californica J. K. Nelson 2004-3-12 2004 -10 Shasta Forest Road 33N041 to digger Bay from Shasta Dam Boulevard, south side of Shasta Lake; ca 8 miles N of Redding, 2 miles W of Shasta Dam. 365 Comment
  HSC37973  Uropappus lindleyi Thomas W. Nelson, J. P. Smith, James Nelson, Jane P. Nelson 1976-4-12 2322 Lake Along Moran Valley Rd., 2 mi. W of Napa Co. line 732 Comment
  JEPS128112  Urtica dioica Julie Kierstead Nelson with Heath Bartosh, Jepson Yolla Bolly Workshop 2017-7-15 2017 -043 Trinity Yolla Bolly Wilderness; near Tehama County line; North Yolla Bollies, Cedar Basin, SW aspect. Comment
  UC1607984  Urtica dioica subsp. holosericea Donald G. Nelson 1935-6-2 321 Orange n. Brea (mouth of Brea Canyon, on Tonner lease); on Tonner lease Comment
  CHSC98793  Vaccinium Julie Kierstead Nelson 2006-11-8 2006 -045 Shasta Bully Hill Mine, north side of Shasta Lake at confluence of Squaw Creek and Pit River arms. UTM E0567801, N4516169, Zone 10. Small (0.1acre) population in depression below mine road east of Town Creek. 365 Comment
Read comments
Jan 5 2016
  CHSC24758  Vaccinium ovatum J. R. Nelson 1976-4-11 19 Mendocino At entrance to Little River Airport, ca 5 mi se of Little River. 36 Comment
  JEPS123401  Vaccinium scoparium Julie Kierstead Nelson with Don Lepley, Rhonda Posey 2015-8-13 2015 -132 Siskiyou Headwaters of west fork Parks Creek, 2 miles NE of China Mountain. Comment
  JEPS117862  Vaccinium shastense subsp. shastense Julie Kierstead Nelson 2006-11-8 2006 -45 Shasta Bully Hill Mine, north side of Shasta Lake at confluence of Squaw Creek and Pit River arms 365 Comment
Read comments
Jan 5 2016
  CAS-BOT-BC193403  Vaccinium shastense subsp. shastense J. K. Nelson 2004-4-13 2004 -012 Shasta Friday Louden mine adit along County Road 5G12 to Behemotash Mountain from Shasta Dam, west side of Shasta Lake, ca 20 miles NW of Redding 792 Comment
  HSC82400  Vaccinium uliginosum Thomas W. Nelson 1979-7-11 5014 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC48055  Valeriana sitchensis subsp. scouleri Thomas W. Nelson, Jennifer Whipple 1978-4-27 3913 Del Norte Flat above junction of North and Middle Forks of Smith River, across river from Gasquet. Comment
  HSC81625  Veratrum californicum var. californicum Thomas W. Nelson, Jane P. Nelson 1980-7-19 6201 Siskiyou Along USFS Rd. 40N17 1.0 mi. from junction with Callahan-Cecilville Rd. 1585 Comment
  JEPS123438  Veratrum californicum var. californicum Julie Kierstead Nelson with Marie Buell 2015-7-18 2015 -116 Trinity Yolla Bolly Wilderness; near Tehama County line; 0.3 miles W of North Yolla Bolly; headwaters of the east fork of the south fork of Trinity River. Comment
  HSC40825  Verbena lasiostachys var. lasiostachys Thomas W. Nelson, James Nelson 1976-7-26 3044 Humboldt S of Mount Lassic (Signal Peak) 1707 Comment
  UC1618125  Veronica americana Donald G. Nelson 1940-7-7 697 San Mateo highway from Half Moon Bay to San Mateo (along Pilarcitos Creek); Pilarcitos Creek 76 Comment
  HSC36886  Veronica serpyllifolia Thomas W. Nelson, Jane Nelson, James Nelson 1975-7-20 2058 Humboldt Beside Rd. 2S08 to Pine Mtn. Comment
  CHSC110652  Viburnum opulus Julie Kierstead Nelson; Lusetta Nelson, Martin Lenz 2012-8-13 2012 -084 Trinity Hwy. 3 N of Clair Eagle (Trinity) Lake, Carrville. 723 Comment
  JEPS120228  Viburnum opulus Julie Kierstead Nelson with Lusetta Nelson, Martin Lenz 2012-8-13 2012 -084 Trinity Hwy. 3 N of Clair Engle (Trinity) Lake, Carrville Comment
  CAS-BOT-BC419721  Vicia americana subsp. americana Julie Kierstead Nelson; Jordan Rainbow 2014-5-21 2014 -020 Siskiyou Forest Road 42N84 off Highway 97, north side of Mt. Shasta. 1088 Comment
  HSC40041  Vicia americana var. americana Thomas W. Nelson, Jane P. Nelson 1976-7-1 2893 Humboldt Along ridge N of Bear Creek 1463 Comment
  HSC40794  Vicia americana var. americana Thomas W. Nelson, James Nelson 1976-6-22 2777 Trinity Below Senteney Rock. 1463 Comment
  HSC44839  Vicia americana var. americana Thomas W. Nelson, Jane P. Nelson 1977-6-19 3536 Trinity Beside Senteney Rock 1494 Comment
  HSC82109  Vicia americana var. americana Thomas W. Nelson, Jane P. Nelson 1980-5-25 5252 Humboldt Along road from Dinsmore to Anderson Crossing, McKeown Ranch Rd. 100 m N of junction of road to Hindley Cabin 823 Comment
  HSC82044  Vicia americana var. americana Thomas W. Nelson, Jane P. Nelson 1980-6-16 5465 Trinity Along road to Plummer Peak; ca. .5 mile from Philpot Campground 793 Comment
  CHSC1002  Vicia sativa L. Nelson 1935-5-5 Shasta Clear Creek. 152 Comment
  JEPS128420  Vicia villosa Julie Kierstead Nelson 2015-1-28 2015 -002 Shasta North side of Shasta College Redding campus, north of Hwy 299, east of Old Oregon Trail. Comment
  HSC67295  Viola cuneata Thomas W. Nelson, Jane P. Nelson 1980-6-17 5501 Trinity Shasta-Trinity National Forest, along Salt Creek Rd. at junction with FS Rd. 30N24 945 Comment
  HSC71930  Viola cuneata Thomas W. Nelson, Jane P. Nelson 1980-6-22 5759 Trinity Shasta-Trinity National Forest, along FS Rd. 29N28, 7 mi. S of junction with Hwy. 36, 1 mi. N of Goat Camp 1372 Comment
  HSC32749  Viola douglasii Thomas W. Nelson, Jane P. Nelson 1973-4-22 742 Mendocino 2 mi. E of the summit on road to Eden Valley Comment
  HSC37979  Viola douglasii Thomas W. Nelson, J. P. Smith, Jane P. Nelson, James Nelson 1976-4-12 2326 Lake Along Morgan Valley Rd., 2 mi. W of Napa county line 732 Comment
  SEINET6176898  Viola douglasii Thomas W. Nelson, Jane P. Nelson 1980-6-24 5878 Colusa Lake Pillsbury Quad. Along road to Snow Mountain trail head at Summit Springs. Serpentine.; 0 1585 Comment
  HSC35923  Viola hallii Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-20 1968 Trinity Near S end of road out Swayback Ridge Comment
  HSC39000  Viola hallii Thomas W. Nelson, Jane P. Nelson 1976-5-31 2654 Humboldt N of junction of FS Rds. 1S07 and 5E27 along 5E27 1524 Comment
  HSC71936  Viola hallii Thomas W. Nelson, Jane P. Nelson 1980-6-22 5766 Trinity Along Panther Camp Trail, 200 yds. N of junction with FS Rd. 29N73, 3 mi. from Hayfork Creek 1646 Comment
  HSC59765  Viola hallii Thomas W. Nelson 1978-5-17 4024 Mendocino B.L.M. Rd. to Red Mtn. area Comment
  HSC33453  Viola lobata Thomas W. Nelson, James Nelson 1974-6-17 1356 Placer Along Hwy. 80 at its junction with Blue Canyon Rd., 9 mi. W of Placer-Nevada County line Comment
  HSC81554  Viola lobata Thomas W. Nelson, Jane P. Nelson 1980-7-20 6165 Siskiyou Above and to SE of Big Carmen Lake 1738 Comment
  HSC103363  Viola lobata Thomas W. Nelson, Sydney Carothers 2004-4-24 9184 Del Norte Along Gasquet Mtn. Road (17N49), 2 mi. W of junction with State Route 199 at junction with Forest Service Rd. 2E19 509 Comment
  UC672037  Viola ocellata Evelyn Hart Nelson 1940-4-20 85 Santa Clara Loma Prieta, Fire trail Loma Prieta; Santa Cruz Mountains, Loma Prieta 1066 Comment
  HSC34874  Viola ocellata Thomas W. Nelson, James Nelson 1975-5-5 1779 Humboldt Beside Hwy. 101, ~ 4 mi. S of the Salmon Creek Bridge Comment
  HSC67183  Viola purpurea subsp. integrifolia Thomas W. Nelson, Jane P. Nelson 1980-6-10 5434 Humboldt Along E side of Red Mtn. 1372 Comment
  HSC67259  Viola purpurea subsp. integrifolia Thomas W. Nelson, Jane P. Nelson 1980-5-7 5201 Trinity Along FS 29N59, about 1/2 mi. E of junction with FS 30N29, Rattlesnake Ridge 1433 Comment
  HSC69906  Viola purpurea subsp. integrifolia Thomas W. Nelson 1978-5-27 4043 Trinity On Red Mtn. 1250 Comment
  HSC32929  Viola purpurea subsp. purpurea Thomas W. Nelson 1973-5-30 974 Humboldt Humboldt/Trinity Co. line, Mt. Lassic 1790 Comment
  HSC39623  Viola purpurea subsp. purpurea Thomas W. Nelson, Jane P. Nelson 1976-6-15 2727 Humboldt Along old trail from lookout to Blocksburg 1585 Comment
  HSC40539  Viola purpurea subsp. purpurea Thomas W. Nelson, Jane P. Nelson 1976-5-23 2535 Trinity Black Lassic, E side 1585 Comment
  HSC67334  Viola purpurea subsp. purpurea Thomas W. Nelson 1980-5-30 5354 Trinity Along Rd. 60 (Underwood Mtn. Rd.), 10 mi. S from junction with Hwy. 299 1341 Comment
  HSC40562  Viola purpurea subsp. purpurea Thomas W. Nelson, James Nelson 1976-6-22 2775 Trinity Below Senteney Rock 1463 Comment
  HSC72215  Viola purpurea subsp. quercetorum Thomas W. Nelson, Jane P. Nelson 1980-6-24 5873 Colusa Colusa-Lake County line, along trail to Snow Mtn., 0.5 mi. from trailhead 1616 Comment
  HSC69797  Viola sheltonii Thomas W. Nelson, Jane P. Nelson 1978-3-25 3827 Trinity Terrace above Canyon Creek at Lower Canyon Creek Meadow 915 Comment
  CHSC110657  Vitis californica Julie Kierstead Nelson 2012-5-1 2012 -010 Shasta 5 mi. N of Shasta College, NE of Redding; floodplain of unnamed tributary to Stillwater Creek. 198 Comment
  HSC81957  Vitis californica Thomas W. Nelson, Jane Nelson 1979-6-25 4894 Tehama Along road from Tedoc Gap to Well's Creek, 0.25 mi. SE of Weston Ranch 1280 Comment
  HSC69872  Vulpia bromoides Thomas W. Nelson 1978-5-29 4094 Humboldt On McKeown Ranch N of Dinsmore. 762 Comment
  HSC32756  Vulpia microstachys Thomas W. Nelson, D. E. Anderson 1973-5-5 801 Mendocino Near Roberts Lake. Comment
  HSC35018  Vulpia microstachys Thomas W. Nelson 1975-5-24 1878 Humboldt McKeown Ranch, N of Dinsmore. Comment
  CAS-BOT-BC131769  Washingtonia filifera Aven Nelson; Ruth Nelson 1939-3-25 3256 Riverside In Palm Canyon, Borego Desert State Park Comment
  HSC35936  Whipplea modesta Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2029 Humboldt French Camp, Bald Hills. Comment
  HSC81925  Whipplea modesta Thomas W. Nelson, Jane P. Nelson 1979-7-3 4954 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  HSC103586  Wislizenia refracta subsp. californica Thomas W. Nelson, Jane Nelson 1983-8-24 7612 Tulare Just off State Route 99, ~ 1 mi. S of Pixley; at intersection of Avenue 72 and Road 130. 84 Comment
  CHSC78055  Woodwardia fimbriata Terry Nelson 1998-4-11 240 -20 Shasta 2 mi sw of Whiskeytown Lake and on the e bank of Brandy Creek. 420 Comment
  HSC33067  Wyethia angustifolia Thomas W. Nelson, Jane P. Nelson 1974-5-10 1255 Mendocino W side of Hwy. 101, 2 mi. N of its junction with Redwood Valley Rd. Comment
  HSC69817  Wyethia angustifolia Thomas W. Nelson 1978-5-27 4073 Trinity At Secret Gulch, 1 mi. NW of Three Forks of Mad River 884 Comment
  HSC82444  Wyethia angustifolia Thomas W. Nelson, Jane P. Nelson, R. J. Cole 1979-7-27 5057 Tehama Along old logging rd. W side of USFS Rd. at Pole Corral Gap 1311 Comment
  HSC33134  Wyethia glabra Thomas W. Nelson, Jane P. Nelson 1974-4-9 1167 Mendocino Near Bloody Run Creek between Longvale and Covelo. Comment
  HSC32833  Wyethia helenioides Thomas W. Nelson, D. Anderson 1973-5-6 886 Mendocino Road to Eden Valley just N of entrance to valley. Comment
  RSA254863  Wyethia helenioides Thomas W. Nelson, D. Anderson 1973-5-6 886 Mendocino Beside road to Eden Valley just north of entrance to Valley. Comment
  HSC82033  Wyethia longicaulis Thomas W. Nelson, James Nelson 1980-6-10 5401 Humboldt Along Swayback Ridge 4-wheel drive road, 1.25 mi. S of junction with Forest Service road. 1494 Comment
  CHSC118447  Xanthium spinosum Julie Kierstead Nelson; Lusetta Nelson, Amy Livingston, Christine Mai 2014-10-15 2014 -090 Trinity Indian Valley Ranch; distrubed barnyard near Indian Valley Creek. UTM NAD 83 Zone 10, 507195n E, 4500106m N. 510 Comment
  UC1543050  Zannichellia palustris Donald G. Nelson 1937-6-28 551 Contra Costa halfway between Clayton and Byron (Marsh Creek); Marsh Creek Comment
  RSA517441  Zannichellia palustris Donald G. Nelson 1937-6-28 551 Contra Costa Half way between Clayton and Byron; Marsh Creek. Comment
  HSC34745  Zeltnera muehlenbergii Thomas W. Nelson 1974-7-19 1670 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC35862  Zeltnera muehlenbergii Thomas W. Nelson, James Nelson 1975-8-5 2133 Humboldt Along S spit of Humboldt Bay adjacent to jetty Comment
  UC1543215  Zigadenus fremontii Donald G. Nelson 1935-4-6 246 Orange deep canyon 200-300 ft below main highway (about 4 mi from summit, e of San Juan Capistrano, hillside sloping n from main hwy); San Juan Canyon Comment
  HSC67381  Zigadenus micranthus Thomas W. Nelson 1980-5-30 5358 Trinity Along Rd. 60 (Underwood Mtn. Rd.), 10 mi. S from junction with Hwy. 299 1341 Comment
  HSC71915  Zigadenus micranthus Thomas W. Nelson, Jane P. Nelson 1980-6-22 5813 Shasta Shasta-Trinity National Forest, along USFS Rd. 28N07 E of junction with Rd. 41 1220 Comment
  HSC103660  Zigadenus micranthus var. micranthus Thomas W. Nelson, Sydney Carothers 2003-6-20 9170 Del Norte Along Wimer Road at Stone Corral Lookout, 12.8 mi. from junction with N Bank Rd. 736 Comment
  HSC82584  Zigadenus paniculatus Thomas W. Nelson, Jane P. Nelson 1979-5-26 4709 Siskiyou Along Hwy. 3, N of Scott Mtn. Summit, at junction with FS Rd. 40N03 1524 Comment
  HSC70069  Zigadenus venenosus var. venenosus Thomas W. Nelson, Thomas W. Nelson 1978-6-23 4372 Trinity N of Red Mtn. along road from Red Mtn. to Hell to Find Lake 1616 Comment
  HSC70174  Zigadenus venenosus var. venenosus Thomas W. Nelson, Jane P. Nelson 1978-6-22 4310 Trinity Along branch rd. off Dubakella Rd. 2 mi. from jct. with Red Mtn. Motorway 1555 Comment



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