Search Results — 2000 specimen records retrieved (1363 records with coordinates)
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Results for search: County=HUMBOLDT; Source=All;   

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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  SBBG11073  Abies grandis D. E. Breedlove 1961-7-4 658 Humboldt US Hwy 299, 3.1 mi E of the N fork of the Mad River 502 Comment
  HSC59741  Abronia latifolia Clark L. Miller 1979-5-9 6117 Humboldt Samoa Dunes W of Samoa Blvd. Comment
  HSC93532  Abronia latifolia Gordon Leppig, Sylvia Leppig, Kai Neander 1998-5-6 746 Humboldt Dry Lagoon State Park, between ocean and Dry Lagoon 2 Comment
  UCD109781  Abronia latifolia Linda M. Barker 1976-5-13 1490 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CAS-BOT-BC233751  Abronia umbellata Doris K. Kildale 1926-6-18 2401 Humboldt Gold Bluffs Beach Comment
  HSC37503  Abronia umbellata var. breviflora J. D. Ackerman 1975-8-2 624 Humboldt N Spit of Humboldt Bay, 0.25 mi. N of N Jetty, U.S. Coast Guard Station Comment
  HSC98194  Acacia decurrens Gary J. Stebbins 1970-3-3 16 Humboldt Along Maple Creek Rd. .5 mi. W of Maple Creek Bridge. Comment
  UC1360497  Acaena novae-zelandiae D. W. Cooper 1966-10-10 Humboldt On ridge just southeast of Forest Service Nursery, ca. 2 miles southeast of Crannell and ca. 4 miles east of U.S. Hwy. 101. Comment
  CAS-BOT-BC330540  Acer circinatum Doris K. Kildale 1925-6-28 836 Humboldt Lawrence Creek near bridge on Kneeland--Iaqua road 609 Comment
  POM89162  Acer circinatum Joseph P. Tracy 1920-8-1 5346 Humboldt Kneeland Prairie Lawrence Creek 457 Comment
  CAS-BOT-BC331583  Acer macrophyllum Doris K. Kildale 1927-5-7 3112 Humboldt Elk Ridge Comment
  HSC2817  Acer macrophyllum D. E. Anderson 1962-3-17 1933 Humboldt 3 mi. W of Bridgeville along Hwy. 36 Comment
  HSC98356  Acer macrophyllum T. Jimerson, J. Pageau 1979-7-31 706 Humboldt Near Whiting Ridge. Close to town of Hyampom 1204 Comment
  SBBG4087  Acer macrophyllum M. J. Cody 1938-7-14 Humboldt near Trinidad Comment
  SDSU297  Acer macrophyllum L. N. Harvey 1930-9-27 Humboldt Eel River Comment
  SEINET9350229 Image available Acer macrophyllum Frederick Utech, Knight, Walter; Knight Irja 1984-4-20 84 -175 Humboldt Humboldt County; Ca. 0.4 mi S towards Redcrest on Avenue of Giants from junction with US hwy 101. Trees to 20 ft.; along edge of Redwood Forest Association. Elev: 50 ft Herbarium, Carnegie Museum (CM), Pittsburgh, PA. 15 Comment
  RSA12544  Achlys triphylla C. B. Wolf 1934-7-2 5894 Humboldt Snow Camp. (Mountains east of Korbel). 1372 Comment
  HSC99546  Aconitum columbianum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 211 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  RSA20784  Aconitum columbianum Carl B. Wolf 1937-8-13 9249 Humboldt North coast range, 11 mi. E. of Hoopa Valley on new road toward Trinity Summit. 1524 Comment
  HSC55637  Aconitum columbianum subsp. columbianum Overton, Butler 1979-7-24 9668 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC55866  Aconitum columbianum subsp. viviparum G. L. Clifton, Griswold 1979-7-25 10888 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC54873  Aconogonon davisiae G. L. Clifton, Griswold 1979-7-25 10842 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC56125  Actaea rubra G. L. Clifton, Griswold 1979-8-1 11914 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC76049  Actaea rubra Overton, Butler 1979-8-2 12542 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  UC502922  Actaea rubra Joseph P. Tracy 1932-7-17 10690 Humboldt Devil's Hole Klamath Mts., Trinity Summit (head) 1828 Comment
  HSC97602  Actaea rubra Cara Witte 2007-6-1 175 Humboldt Along Forest Service 5N10. 1.5 miles east of intersection with National Forest 1. 1365 Comment
  RSA21189  Actaea rubra subsp. arguta Carl B. Wolf 1937-8-11 9148 Humboldt N Coast Range, Van Duzen River, 2.7 miles W of Dinsmores. 457 Comment
  HSC56445  Adenocaulon bicolor Griswold, Butler 1979-7-12 7195 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC164786  Adenocaulon bicolor J. P. Tracy 1900-7-22 904 Humboldt immediate vicinity Eureka 0 Comment
  UC203330  Adiantum aleuticum Joseph P. Tracy 1916-6-25 4742 Humboldt e Trinidad (Redwood Creek); Northern Coast Ranges 152 Comment
  CAS-BOT-BC62298  Adiantum aleuticum Mrs. H. C. Cantelow 1935-6-13 935 Humboldt E. of Arcata Comment
  HSC958  Adiantum aleuticum S. J. Moore 1965-5-12 18 Humboldt Gold Beach Comment
  UC249533  Ageratina occidentalis Joseph P. Tracy 1922-7-15 6101 Humboldt gravel bar near Blue Lake; Northern Coast Ranges of California, Mad River 15 Comment
  JEPS18700  Ageratina occidentalis Lincoln Constance 1934-6-27 935 Humboldt 0.5 mi nw South Fork P.O. and R.R. Sta. (s side of Eel River, near its junction with the S. Fork at end of railroad bridge); South Fork of Eel River, Bull Creek Region Comment
  HSC57003  Agoseris grandiflora Overton, Butler 1979-7-24 9589 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC75954  Agoseris grandiflora Overton, Butler 1979-7-24 9734 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  SEINET202623 Image available Agoseris grandiflora Joseph P. Tracy 1942-7-18 17275 Humboldt Garberville north end of town. Comment
  UC1199116  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1930-7-27 8899 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  UC1222934  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1942-6-15 17146 Humboldt n end Garberville Comment
  UC1222937  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1950-7-6 19024 Humboldt 3 mi s, sw slopes of Buck Mt Burr Valley; Buck Mountain 1066 Comment
  UC1239513  Agoseris grandiflora var. grandiflora Mrs. C. M. Wilder 1936-7-1 Humboldt at Jack Kemp's place, sw slope Buck Mt. Buck Mt. 914 Comment
  UC582753  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1934-7-4 13298 Humboldt at crossing of the Kneeland Road Lawerence Creek 457 Comment
  POM161907  Agoseris heterophylla Joseph P. Tracy 1921-6-12 5816 Humboldt Kneeland Prairie 762 Comment
  UC29354  Agoseris heterophylla var. heterophylla H. N. Bolander 1867-1 6494 Humboldt Red Mountains Comment
  UC1103368  Agrostis alba J. P. Tracy 1900-9-2 933 1/2 Humboldt immediate vicinity Eureka 0 Comment
  RSA183627  Agrostis densiflora D. E. Anderson 1965-9-5 4073 Humboldt Along Mad River, ca. 3 miles south of Blue Lake. Comment
  UC1145067  Agrostis densiflora Joseph P. Tracy 1936-6-8 14873 Humboldt clay bluff close to ocean shore Trinidad 3 Comment
  RSA152376  Agrostis exarata Joseph P. Tracy 1947-6-28 17749 Humboldt Larrabee Valley 732 Comment
  RSA21206  Agrostis exarata C. B. Wolf 1937-8-10 9095 Humboldt Big Lagoon, so. side, w. side of Redwood Highway 6 Comment
  UC1103388  Agrostis exarata J. P. Tracy 1901-6-23 1180 Humboldt immediate vicinity of Eureka 0 Comment
  UC249865  Agrostis exarata Joseph P. Tracy 1924-7-13 6729 Humboldt in bog Northern Coast Region, Big Lagoon 6 Comment
  UC188818  Agrostis exarata Joseph Burtt Davy and Walter C. Blasdale 1899-6-26 5885 Humboldt Francis Range Comment
  JEPS121641  Agrostis idahoensis Jennifer Buck, Danielle Roach 2009-9-30 Humboldt Blake Fen, South Fork Mountain. Sloping fen on schist, NE aspect. Blake Mountain quadrangle. SFM02B Comment
  UC1152035  Agrostis microphylla Joseph P. Tracy 1951-6-21 19532 Humboldt bed of former Goose Lake (back of Everett Beck house on ranch, Hydesville); bed of former Goose Lake, Everett Beck house on ranch, Hydes Comment
  SEINET10510269  Agrostis microphylla A. Arthur Heller 1923-7-8 Heller 13772 Humboldt Plentiful in a depression in a field in clay soil at Fortuna. Comment
  HSC102238  Agrostis oregonensis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1164 Humboldt Patterson Meadows 1555 Comment
  UC1145064  Agrostis oregonensis Joseph P. Tracy 1937-7-29 15582 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC49053  Agrostis pallens Thomas Nelson, Jane Nelson 1978-7-3 4414 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UCD53175  Agrostis pallens Don Hagar 1957-8-16 s.n. Humboldt Humboldt - Trinity County border: north slope of Trinity Mtn., 15 miles east of Hoopa. 1828 Comment
  UC526664  Agrostis scabra Joseph P. Tracy 1932-7-16 10608 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  SEINET11683259  Agrostis stolonifera K. S. Erdman 1970-1 4773 Humboldt Counts Hill prairie on Bald Hills Rd, SE of Orick 853 Comment
  RSA10023  Agrostis variabilis Joseph P. Tracy 1930-7-19 8948 Humboldt South Fork Mountain; along summit near Blake lookout. 1738 Comment
  HSC8865  Aira caryophyllea A. H. Murphy 1951-5-15 Humboldt 1 mi. SE of Fruitland-Whitlow Rd. Jct. on Whitlow Rd. 305 Comment
  UC922024  Aira caryophyllea Joseph P. Tracy 1950-6-15 18814 Humboldt on Harris Rd. near Huestis Rock (6 mi se of Trinidad) 914 Comment
Read comments
Nov 27 2009
  CAS-BOT-BC138331  Aira caryophyllea var. caryophyllea Joseph P. Tracy 1927-6-19 8199 Humboldt Northern Coast Region. Big Lagoon. 6 Comment
  CAS-BOT-BC138336  Aira caryophyllea var. caryophyllea Ira L. Wiggins 1932-6-18 5874 Humboldt Hillside at mouth of Little River. Comment
  HSC8871  Aira praecox R. J. Vernimen 1963-4-27 35 Humboldt 0.5 mi. off Samoa Blvd. behind Georgia-Pacific dump, 7.5 mi. SW of Arcata Comment
  UC1103296  Aira praecox Joseph P. Tracy 1932-5-16 10103 Humboldt sand dunes near Samoa; Humboldt Bay 6 Comment
  HSC98976  Allium acuminatum Cara Witte 2008-7-14 900 Humboldt White Oak Opening. Along Kinsey Ridge. 1257 Comment
  HSC23145  Allium amplectens Norman Dennis 1965-6-19 132 Humboldt 0.25 mi S and 1.0 mi. E of junction of Barry Ridge Rd. and Eureka-Bridgeville county rd., along Ashfield Ridge Rd., 5 mi. SE of Kneeland 793 Comment
  HSC98646  Allium amplectens Cara Witte 2007-6-7 233 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  UC1198195  Allium amplectens Joseph P. Tracy 1927-5-14 8004 Humboldt near South Fork; Trinity River Valley 182 Comment
  UC666887  Allium amplectens Joseph P. Tracy 1936-6-17 14975 Humboldt Little Van Duzen River at highway crossin Little Van Duzen River 713 Comment
  HSC32884  Allium bolanderi var. bolanderi Thomas W. Nelson, James Nelson 1973-5-28 936 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC102616  Allium campanulatum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1603 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC39430  Allium campanulatum Thomas W. Nelson, Jane P. Nelson 1976-6-22 2872 Humboldt Area at Goat Hill. 1666 Comment
  CAS-BOT-BC464487  Allium campanulatum Joseph P. Tracy 1932-7-12 10479 Humboldt Trinity Summit, Head of Brett Hole 1828 Comment
  HSC36505  Allium falcifolium Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1886 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  CAS-BOT-BC469020  Allium falcifolium Carl Purdy 1937-6-1 s.n. Humboldt Grouse Mountain Comment
  UC3080  Allium falcifolium H. N. Bolander 6554 Humboldt Red Mts. Comment
  UC15004  Allium membranaceum Mrs. M. H. Manning 1901-7-14 3 Humboldt trail below Mud Springs; Hupa Comment
  CDA2736  Allium triquetrum E. C. Whitney 1965-4-19 Humboldt Lamphire Road & nearby field, Arcata Bottoms. 0 Comment
  HSC2987  Allium unifolium J. F. Knezevich 1968-5-14 438 Humboldt 11 mi. S of Ferndale on rd. to Cape Mendocino 305 Comment
  UC176168  Allium unifolium Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3607 Humboldt near Hydesville; Northern Coast Region 30 Comment
  RSA75603  Allium unifolium Albert M. Vollmer, L. Beane 1951-6-11 138 Humboldt Horse Mountain-Shelter Cove Road. Comment
  HSC76430  Allium validum Denis Kearns 1981-7-23 397 Humboldt Near Whiteys Peak. 1524 Comment
  HSC42107  Allium validum Thomas W. Nelson, Jane P. Nelson 1977-8-6 3704 Humboldt Along S side of Lassic Peak 1463 Comment
  SACT002769  Alnus oregona J. Clark 1972-4-22 Humboldt 26 miles north of Eureka on Highway 101. Roadwood Forest. Comment
  CAS-BOT-BC170944  Alnus rhombifolia Doris K. Kildale 1926-9-9 2686 Humboldt Little Van Duzen River on Bridgeville - Weaverville road 640 Comment
  UC503085  Alnus rhombifolia Joseph P. Tracy 1931-10-11 9717 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  CAS-BOT-BC169535  Alnus rubra Doris K. Kildale 1928-7-29 5919 Humboldt Bear River at Capetown Comment
  CAS-BOT-BC169538  Alnus rubra Carl B. Wolf 1927-8-22 796 Humboldt Big Lagoon Comment
  CHSC130  Alnus rubra A. Small 1953-4-1 Humboldt Near Ferndale. Comment
  HSC3396  Alnus rubra Dan O'Brien 1962-5-19 Humboldt 4.5 mi. E on Fickle Hill Rd. Comment
  HSC62778  Alnus rubra M. Dean Griswold Jr. 1979-5-30 89 Humboldt Along rd. up Jolly Giant Creek Comment
  HSC89484  Alnus rubra P. A. Daly 1984-5-13 22 Humboldt Along trail at Trinidad Head 61 Comment
  RSA2928  Alnus rubra C. B. Wolf 1931-8-28 2365 Humboldt Redwood Highway 4.5 mi. no. Fortuna on road to Eureka. 15 Comment
  SBBG89139  Alnus rubra A. Keedy 1988-9-28 15 Humboldt Alder Grove Rd near Hwy 299, N of Arcata Comment
  HSC73642  Alnus viridis subsp. sinuata M. A. Baker 1980-7-23 3193 Humboldt Near Orleans Mtn. 1859 Comment
  UC1145046  Alopecurus aequalis Joseph P. Tracy 1950-7-6 19019 Humboldt 3 mi. s. Burr Valley (Buck Mt., high meadow w. side,); Buck Mt. 1158 Comment
  SACT000308  Alopecurus geniculatus Malcolm Nobs, S. Smith 1949-8-3 Humboldt located on borders of irrigation ditch, 1 mile south of fields landing Comment
  UC527823  Alopecurus geniculatus Ira L. Wiggins 1932-6-18 5867 Humboldt lagoon at mouth of Little R. Comment
  SEINET11855057  Ambrosia artemisiifolia J. P. Tracy 1950-1 19313 Humboldt Frank Graham's place. Trinity River Valley, at Willow Creek 152 Comment
  HSC41242  Amelanchier alnifolia var. semiintegrifolia Brad Klipfel 1974-5-27 384 Humboldt Horse Mtn. Comment
  RSA183624  Amelanchier florida D. E. Anderson 1964-4-24 3541 Humboldt 0.5 mile from Hwy 299, on Titlow Hill road. Comment
  HSC55995  Amelanchier pallida Overton, Butler 1979-7-31 11432 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  POM117576  Amelanchier pallida Marcus E. Jones 1924-4-28 s.n. Humboldt Sagtorville Comment
  UC902150  Amelanchier utahensis Joseph P. Tracy 1946-7-13 17618 Humboldt 5 mi e Carlotta (open flat by old Strong's District School House) 60 Comment
  HSC46959  Ammophila arenaria J. P. Smith, Thomas W. Nelson 1977-6-30 9201 Humboldt Samoa Peninsula just E of the drag strip 6 Comment
  OBI65609  Ammophila arenaria G. Douglas Barbe, T. C. Fuller, Hrusa 2-2000 1974-6-19 1881 Humboldt North Coast Ranges. Mad River mouth, beach S of river, at end of Iversen Ln, Tyee City Comment
  HSC26883  Anagallis arvensis Clifton Raymond Chesbrough 1973-6-19 90 Humboldt 1/2 mile S of Trinidad along the coast Comment
  HSC55868  Anemone deltoidea G. L. Clifton, Griswold 1979-7-25 10891 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC56130  Anemone deltoidea G. L. Clifton, Griswold 1979-8-1 11942 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC56303  Anemone deltoidea Overton, Butler 1979-8-2 12610 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC1196197  Anemone deltoidea Joseph P. Tracy 1935-7-28 14309 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  UC1537337  Anemone deltoidea Gordon H. True Jr. 1936-5-12 471 Humboldt 5 mi. s. Kneeland 457 Comment
  UC8883  Anemone deltoidea J. Burtt Davy 1899-6-13 5499 Humboldt Camp Grant; North Coast Ranges Comment
  UC1196194  Anemone deltoidea Joseph P. Tracy 1933-7-11 12711 Humboldt Grouse Mtn; North Coast Ranges; Grouse Mtn 1524 Comment
  CHSC31275  Anemone oregana Mark Stopher 1980-5-20 71 Humboldt Along the Van Duzen River near Rte 36. Comment
  JEPS14171  Angelica genuflexa Joseph P. Tracy 1937-8-22 15670 Humboldt 2 mi s of Fields Landing 6 Comment
  UC582661  Angelica genuflexa Joseph P. Tracy 1937-9-30 15690 Humboldt Dow's Prairie 60 Comment
  UC1087231  Angelica hendersonii Peter H. Raven, Richard Snow 1958-7-21 13660 Humboldt Cape Mendocino Comment
  UC582634  Angelica hendersonii Joseph P. Tracy 1937-8-22 15674 Humboldt Table Bluff 91 Comment
  HSC98637  Angelica tomentosa Cara Witte 2007-7-25 578 Humboldt Forest Service Road 5N10. Approximately 1/2 mile from intersection with Forest Service Road 5N41. 1283 Comment
  UC1197369  Angelica tomentosa Joseph P. Tracy 1924-8-9 6793 Humboldt Northern Coast Ranges, Carlotta Carlotta; Northern Coast Ranges, Carlotta 60 Comment
  UC906655  Angelica tomentosa Joseph P. Tracy 1949-8-26 18528 Humboldt 3 mi s of Grizzly Camp (Trinity Summit); Trinity Summit 1463 Comment
  SD58268  Angelica tomentosa var. hendersonii W. L. Jepson 1936-8-18 17945 Humboldt 1/2 mile south of Singley Creek, Sand dune by the sea Comment
  CAS-BOT-BC271452  Anisocarpus madioides Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  JEPS13179  Antennaria suffrutescens Joseph P. Tracy 1926-6-20 7626 Humboldt Horse Mountain; Northern Coast Ranges, Horse Mountain 1524 Comment
  HSC79443  Anthoxanthum occidentale Kenneth Clark 1980-3-27 550 Humboldt 300 yards S of Dead Man's Gulch. 107 Comment
  UCD85354  Anthoxanthum occidentale A. H. Murphy 1947-2-1 s.n. Humboldt Along road 1 mile S of McCann. Comment
  CAS-BOT-BC137743  Anthoxanthum odoratum David D. Keck 1948-7-1 5968 Humboldt Trinidad. Comment
  HSC8948  Anthoxanthum odoratum William J. Ferlatte 1963-5-6 34 Humboldt Arcata, near 11th and B Sts. Comment
Read comments
Jun 6 2012
  UC589908  Anthoxanthum odoratum H. S. Yates 1936-6-18 5736 Humboldt 2 mi n of Big Lagoon 30 Comment
  UC582470  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1933-8-30 13004 Humboldt Horse Mountain; Northern Coast Ranges 1066 Comment
  RSA425834  Antirrhinum vexillocalyculatum subsp. breweri H. M. Pollard 1948-7-27 s.n. Humboldt Near mouth of Red Cap Creek. Comment
  UC1196737  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1947-7-13 17771 Humboldt near mouth of Hors Linto Creek 152 Comment
  CAS-BOT-BC447667  Aphanes arvensis J. P. Tracy 1901-5-5 1072 Humboldt Immediate Vicinity of Eureka 152 Comment
  RSA43832  Apocynum androsaemifolium subsp. pumilum H. M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1372 Comment
  UC154172  Apocynum cannabinum Joseph Burtt Davy and Walter C. Blasdale 1899-6-29 5896 Humboldt near Requa Comment
  UC1196203  Aquilegia formosa Joseph P. Tracy May 16 1930-May 19 1930 9077 Humboldt McKay Camp Northern Coast Ranges, south Fork Mountain 1676 Comment
  UC552302  Arabidopsis thaliana Joseph P. Tracy 1935-4-20 13787 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  HSC40232  Arabidopsis thaliana J. P. Smith, J. O. Sawyer 1976-5-2 8626 Humboldt 3.96 mi. N of junction with Hwy. 299 on Hwy. 96 Comment
  HSC70390  Arabis breweri var. breweri Gail Newton 1980-6-7 140 Humboldt Near Brush Mtn. 1128 Comment
  HSC57443  Arabis glabra G. L. Clifton, Griswold 1979-7-26 10246 Humboldt Near High Spring, close to the town of Forks of Salmon 2024 Comment
  HSC73735  Arabis glabra M. A. Baker 1980-7-22 3085 Humboldt Near Salmon Mtn. 1820 Comment
  RSA1432  Aralia californica E. R. Johnson 1929-08 616 Humboldt 5 miles S of Weott Comment
  RSA24080  Aralia californica C. B. Wolf 1941-3-2 s.n. Humboldt N Coast Range. Bull Creek-Petrolia Road. 12 miles W of Redwood Highway. 457 Comment
  HSC7599  Arbutus menziesii Francis Winter 1960-4-24 Humboldt 4 mi. E of Blue Lake, Hwy. 299 305 Comment
  CAS-BOT-BC407747  Arceuthobium abietinum Doris K. Kildale 1926-9-5 2634 Humboldt Lasseck's Peaks, between Goat Camp and Signal Peak 1661 Comment
  HSC71803  Arceuthobium campylopodum M. A. Baker 1980-6-26 2381 Humboldt Near Sims Creek 610 Comment
  HSC100848  Arctostaphylos canescens J. P. Smith, J. O. Sawyer 2010-5-4 12813 Humboldt Along Bald Hills Road. 930 Comment
  JEPS46253  Arctostaphylos canescens A. E. Wieslander 1928-7-18 Humboldt near Hupa Valley Comment
  BLMAR112  Arctostaphylos columbiana Jennifer Anthony-Wheeler 1995-1-19 112 Humboldt King range, growing in open meadow/clearing for new KR admin site 283 Comment
Read comments
Apr 5 2016
  CAS-BOT-BC23740  Arctostaphylos columbiana C. Hart Merriam 1921-8-21 s.n. Humboldt 2 miles north of Trinidad Comment
  CAS-BOT-BC23790  Arctostaphylos columbiana Gary D. Wallace 1974-12-22 1345 Humboldt Near coast N of Trinidad at the edge of the W part of Big Lagoon 6 Comment
  CAS-BOT-BC23810  Arctostaphylos columbiana C. Hart Merriam 1920-8-31 s.n. Humboldt Coast Mts. between Shelter Cove and Kenny Comment
  HSC62325  Arctostaphylos columbiana Ruby Van Deventer 1959-2-28 Humboldt Patrick's Point on Coastal Bluff Comment
  HSC7723  Arctostaphylos columbiana H. E. Parks Feb 1933 3985 Humboldt Spruce Cove, Trinidad Comment
  JEPS38968  Arctostaphylos columbiana Joseph P. Tracy 1936-8-24 15170 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  RSA622682  Arctostaphylos columbiana Jon E. Keeley 1996-10-13 27770 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  UC1225898  Arctostaphylos columbiana Joseph P. Tracy 1947-5-24 17693 Humboldt Devil's Canyon Big Lagoon 152 Comment
  UC1225901  Arctostaphylos columbiana Joseph P. Tracy 1948-3-13 17955 Humboldt Table Bluff 91 Comment
  UC718025  Arctostaphylos columbiana Carl B. Wolf 1934-6-30 5844 Humboldt 5 1/2 mi from Shelter Cove (on road to Briceland) 152 Comment
  UCD50668  Arctostaphylos columbiana Linda M. Barker 1976-2-22 1319 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  UCD50745  Arctostaphylos columbiana Roman Gankin 1965-8-5 543 A Humboldt Top of Chimisal Mountain west of Wailaki Recreation Area, Bureau of Land Management. Comment
  RSA152311  Arctostaphylos columbiana var. columbiana Joseph P. Tracy 1948-3-13 17955 Humboldt Table Bluff. 91 Comment
  RSA254754  Arctostaphylos columbiana var. columbiana Thomas W. Nelson 1975-3-20 1750 Humboldt Along Kneeland Rd. just south of its junction with Maple Creek Rd. Losey property. 671 Comment
  HSC7629  Arctostaphylos glandulosa Unknown Humboldt 1 mi. W of Queens Rd. 610 Comment
  UC1222638  Arctostaphylos glandulosa subsp. glandulosa Joseph P. Tracy 1950-8-4 19251 Humboldt Grasshopper Peak Bull Creek State Park Comment
  RSA47100  Arctostaphylos intricata Doris K. Kildale 1926-2-28 1521 Humboldt McDowell Butte - Kneeland. Comment
Read comments
Jul 25 2012
  RSA632795  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27774 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  RSA632796  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27781 Humboldt Bald Hills Road, eastern end of Redwood National Park, 20-23 km west of Highway 96, north of Eureka. 600 Comment
  RSA633022  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 27802 Humboldt Highway 96, 15 km north of Willow Creek. 100 Comment
  UCD52079  Arctostaphylos manzanita Harold E. Parks; Joseph P. Tracy 1936-5-16 11304 Humboldt Near Gasquet; mountain slopes; north side of Middle Fork of Smith River; on old Gasquet Toll Road. 609 Comment
  CHSC110738  Arctostaphylos manzanita subsp. manzanita Dean Wm. Taylor 2011-5-4 21118 Humboldt Larabee Valley, along Highway 36 about 1 mile east of the eastern end of the valley at the bridge for the Little Van Duzen River, 701 Comment
  UC1198677  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1923-3-17 6155 Humboldt Garberville Northern Coast Ranges 121 Comment
  CHSC85573  Arctostaphylos nevadensis L. P. Janeway 2003-7-30 7949 Humboldt High North Coast Ranges. Along Friday Ridge Road, at south end of Friday Ridge, 1.0 km (air) east-southeast of Friday Camp. Roadside. 1359 Comment
  HSC49996  Arctostaphylos nevadensis M. A. Baker 1979-6-7 781 Humboldt 610 Comment
  UC585954  Arctostaphylos nevadensis Joseph P. Tracy 1935-7-30 14370 Humboldt Salmon Summit 1950 Comment
  CAS-BOT-BC40071  Arctostaphylos nevadensis subsp. knightii Doris K. Kildale 1926-8-22 2587 Humboldt On road between Orick & Martin's Ferry. Comment
  SEINET11998376  Arctostaphylos nevadensis subsp. knightii W. Knight, Knight, I. 1988-1 6360 Humboldt 21 mi up Bald Hill Rd from US 101 en route to Hoopa 975 Comment
  CAS-BOT-BC46636  Arctostaphylos patula J. H. Thomas 1949-6-13 920 Humboldt Along trail between Le Perron Flat and Whiteys Peak. Six Rivers National Forest. (E. of town of Orleans). 1676 Comment
  CAS-BOT-BC46637  Arctostaphylos patula J. H. Thomas 1949-6-13 920 Humboldt Along trail between Le Perron Flat and Whiteys Peak. Six Rivers National Forest. (E. of town of Orleans). 1676 Comment
  CAS-BOT-BC46675  Arctostaphylos patula Doris Kildale Gillespie 1931-6-7 10617 Humboldt South Fork Mt. Blake Lookout. 1726 Comment
  HSC35782  Arctostaphylos patula Thomas W. Nelson, B. Reinhardt 1975-7-30 2097 Humboldt Head of Pilot Creek, Last Chance Ridge Comment
  CAS-BOT-BC43989  Arctostaphylos uva-ursi C. B. Wolf 1931-8-30 2374 Humboldt Samoa, Humboldt Bay. 7 Comment
  HSC7730  Arctostaphylos uva-ursi Norman H. Moe 1962-3-17 Humboldt Lanphere's Place Comment
  RSA152315  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17500 Humboldt Eureka. 46 Comment
  SBBG54023  Arctostaphylos uva-ursi R. S. Woglum 1938-8-29 2020 Humboldt seashore, Samoa Comment
  UC1196870  Arctostaphylos uva-ursi Joseph P. Tracy 1937-9-26 15685 Humboldt near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC153963  Arctostaphylos uva-ursi Joseph P. Tracy 1901-4-26 1061 Humboldt Humboldt Hill Northern Coast Region, region about Humboldt Bay 0 Comment
  UC21912  Arctostaphylos uva-ursi J. Burtt Davy 1899-7-30 6184 Humboldt opposite Eureka; Samoa Comment
  RSA2934  Arctostaphylos uva-ursi var. coactilis C. B. Wolf 1931-8-30 2374 Humboldt Samoa. 8 Comment
  RSA89766  Arctostaphylos uva-ursi var. coactilis P. A. Munz 1954-7-25 19876 Humboldt On sand dunes at Humboldt Lighthouse south of Samoa. Comment
  UCD52156  Arctostaphylos uva-ursi var. coactilis Linda M. Barker 1976-4-13 1379 Humboldt Coastal forest and dunes 3 miles west of Arcata, Humboldt Co., California. Comment
  HSC76328  Arctostaphylos viscida Denis Kearns 1981-7-6 52 Humboldt Near Mosquito Lake 1122 Comment
  CDA34337  Arctotheca calendula G. D. Barbe, T. C. Fuller 1989-6-8 4321 Humboldt Larry Pries dairy, 3.4 miles W of Main St., Centerville Beach Rd., Ferndale. 0 Comment
  CDA6803  Arctotheca calendula G. D. Barbe 1988-7-18 4293 Humboldt Ferndale: Larry Pries Dairy, 3.4 mi. W of Main St, on Centerville Beach Road. 0 Comment
  UCD129122  Arctotheca calendula G. D. Barbe 1988-7-18 4293 Humboldt Larry Pries dairy, 3.4 miles west of Main Street, on Centerville Beach Road, Ferndale. Comment
  RSA89768  Armeria maritima subsp. californica P. A. Munz 1954-7-25 19874 Humboldt On sand dunes at Humboldt Lighthouse south of Samoa. Comment
  UC1716064  Armeria maritima subsp. californica M. S. Taylor 1990-8-22 6083 Humboldt Samoa Recreation Area, Samoa Peninsula, Staging Area Eureka Comment
  UCSB15631  Armeria maritima subsp. californica Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samoa; on peninsula on western side of Humboldt Bay Comment
  HSC49998  Arnica discoidea M. A. Baker 1979-6-7 790 Humboldt W slope of Snow Mtn. 762 Comment
  SEINET10475267  Arnica discoidea var. alata Mary Susan Taylor 1980-6-11 Taylor 2842 Humboldt Gray Falls Campground, Six Rivers Natl Forest, on W side of Rd 6N56 to foot bridge, on N side of Hwy 299, ca. 2 mi NW of Burnt Ranch. 274 Comment
  CAS-BOT-BC82647  Arnica latifolia Joseph P. Tracy 1932-7-20 10736 Humboldt Trinity Summit, Fir Woods near Corral Prairie 1524 Comment
  SEINET3098730 Image available Arnica latifolia Joseph P. Tracy 1932-7-20 10736 Humboldt Trinity Summit. Fir woods near Corral Prairie Comment
  SEINET3098738  Arnica latifolia Joseph P. Tracy 1932-7-20 10736 Humboldt Trinity Summit. Fir woods near Corral Prairie 1520 Comment
  HSC58599  Arnica parryi G. L. Clifton, Griswold 1979-7-25 10764 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC8986  Arrhenatherum elatius W. F. Cartwright 1965-5-20 79 Humboldt 5 mi. S of Arcata on Old Arcata Road Comment
  UC1222996  Artemisia douglasiana Joseph P. Tracy 1950-8-20 19326 Humboldt 8 mi below Orleans (in sandy alluvial wash at Big Bar, near Slate Creek); Klamath River 121 Comment
  RSA289423  Artemisia dracunculus Lyman Benson 1929-7-16 1824 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  UC1222995  Artemisia dracunculus Joseph P. Tracy 1950-8-20 19325 Humboldt 8 mi below Orleans (at Big Bar); Klamath River near Snake Creek 121 Comment
  RSA24049  Artemisia pycnocephala C. B. Wolf 1940-11-10 9782 Humboldt Coast south of mendocino- 1.8 mi. N of where road turns inland to Petrolia. 8 Comment
  RSA296735  Artemisia pycnocephala J. P. Smith, Thomas W. Nelson 1977-6-30 9216 Humboldt Samoa Peninsula just east of the drag strip. Comment
  RSA21583  Artemisia suksdorfii C. B. Wolf 1937-9-9 9303 Humboldt Coast, 4.5 mi S of Cape Mendocino. 6 Comment
  CAS-BOT-BC453344  Aruncus dioicus var. vulgaris C. D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UCR179286  Asarum caudatum R. G. Swinney 1968-3-28 232 Humboldt East of Humboldt State College, Arcata 152 Comment
  HSC34795  Asarum caudatum John Palmer 1975-4-9 297 Humboldt 40 yds. E of intersection of 17th at Bayview St., Arcata Comment
  POM92404  Asarum caudatum L. R. Abrams 1922-6-25 s.n. Humboldt North of Mad River near Arcata Comment
  SEINET8714984 Image available Asarum caudatum Unknown 1936-1 s.n. Humboldt Redwood forest on Yager Road from Carlotta, elevation about 1500 feet, Humboldt County, California. 457 Comment
  SFV18521  Asarum caudatum M. Oliver 2002-3-17 18 Humboldt Arcata Community Forest. 155 Comment
  UC154170  Asclepias cordifolia Harley P. Chandler June, 1901 1347 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  RSA46483  Asclepias fascicularis Doris K. Kildale 1925-9-7 s.n. Humboldt Klamath at mouth of Dillon Cr. 762 Comment
  HSC1052  Aspidotis densa P. W. Shields May 1955 Humboldt 4 mi. W of Hoopa Comment
  UC419051  Aspidotis densa J. P. Tracy and H. E. Parks 1930-9-15 763 Humboldt Kneeland; Bald Hills Comment
  HSC44047  Aspidotis densa Thomas W. Nelson, Jane Nelson 1977-7-1 3546 Humboldt On Ridge N of Bear Cr. 100 m W of Rd. 1S07 1555 Comment
  JEPS109802  Astragalus agnicidus Dean W. Taylor 2004-6-22 19115 Humboldt head of Scott Creek, flanks of Mt Baldy, Larabee Creek watershed 731 Comment
  UC502993  Astragalus agnicidus J. C. Tario Jr. 1931-8-20 Humboldt 4 mi s Miranda (near Bear Buttes, local on Tosten and Pierce Ranch); s of Miranda, nr Bear buttes, Tosten and Pierce Ranch 762 Comment
  UC397265  Astragalus rattanii var. rattanii P. E. Goddard June, 1907 b. 124 Humboldt Van Duzen Comment
  CAS-BOT-BC200854  Astragalus umbraticus D. E. Anderson 1965-5-15 3694 Humboldt About 7 miles north of Hoopa on Bloody Camp Prairie road Comment
  HSC101497  Astragalus umbraticus Thomas W. Nelson, Jane P. Nelson 1987-6-27 8620 Humboldt Along Forest Service Road to Onion Lake, 8.2 miles from junction with State Route 96 823 Comment
  UC1174493  Astragalus umbraticus Volney Rattan 1878-1 Humboldt Comment
  UC1755322  Astragalus umbraticus Dean W. Taylor 2006-8-2 19569 Humboldt Showers Mountain; on north flank of the mountain, south rim of the Mad River canyon 1051 Comment
  HSC41304  Asyneuma prenanthoides Brad Klipfel 1974-7-23 467 Humboldt Horse Mtn. Comment
  POM182459  Athyrium filix-femina subsp. cyclosorum Joseph P. Tracy 1912-7-25 3814 Humboldt Along Black Creek, Kneeland Prairie 762 Comment
  HSC72972  Athysanus pusillus Gail Newton 1980-6-24 601 Humboldt Near Ladder Rock 1570 Comment
  UC1198298  Athysanus pusillus Joseph P. Tracy 1927-3-27 7848 Humboldt Trinity River Valley near the South Fork; North Coast Ranges, Trinity River Valley 182 Comment
  HSC4345  Atriplex leucophylla Jerry Parker 1968-10-26 206 Humboldt Driftline 0.5 mi. S of Big Lagoon. Comment
  UC503075  Azolla filiculoides Joseph P. Tracy 1927-7-16 8258 Humboldt Eureka; Northern Coast Ranges 0 Comment
  CAS-BOT-BC99406  Baccharis pilularis Carl B. Wolf 1927-8-29 1219 Humboldt Seacoast, [Devil's] Devils Gate, south of Cape Mendocino Comment
  CAS-BOT-BC99407  Baccharis pilularis Carl B. Wolf 1927-8-22 805 Humboldt 1 mile south of Orick Comment
  RSA254757  Baccharis pilularis Thomas W. Nelson 1971-11-11 601 Humboldt Growing on the sand dunes at the foot of Murray Rd. McKinleyville Comment
  HSC5117  Baccharis pilularis subsp. consanguinea J. W. Johnson 1961-11-20 1409 Humboldt Arcata; Hollow 10, Lanphere Farm, Samoa Peninsula Comment
  HSC5118  Baccharis pilularis subsp. consanguinea J. W. Johnson 1961-9-4 1102 Humboldt Arcata; in the Hollow N of Dune 3 N Christenson Farm, Samoa Peninsula Comment
  SEINET7003037  Baeria chrysostoma J. P. Tracy 1901-5-18 1099 Humboldt Ocean Beach at Samoa, opposite Eureka. Comment
  CAS-BOT-BC99989  Balsamorhiza deltoidea Harold E. Parks; Joseph P. Tracy 1935-6-16 11282 Humboldt Buck Mt. Lower NW slopes 792 Comment
  HSC89439  Barbarea verna P. A. Daly 1985-5-3 35 Humboldt Trinidad Head 61 Comment
  JEPS31855  Bellis perennis Lincoln Constance 1934-6-3 800 Humboldt North Dyerville Flat South Fork Eel River Comment
  HSC34654  Bellis perennis A. M. Montalvo 1975-4-10 206 Humboldt Vacant lot bordering HSU campus between Union St. and A St. 15 Comment
  RSA167308  Bensoniella oregona Joseph P. Tracy 1951-6-14 19416 Humboldt East side of Snow Camp Meadows Comment
  UC1046539  Bensoniella oregona R. Bacigalupi, L. Constance, J. P. Tracy, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3410 Humboldt on long high ridge between Mad River and Redwood Creek (Bald Mountain ridge) High Prairie; Bald Mountain ridge, btw Mad River and Redwood Creek 1066 Comment
  HSC35711  Berberis aquifolium Thomas W. Nelson 1975-10-12 2238 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC3361  Berberis darwinii G. L. Cribbs 1966-5-7 1049 Humboldt Cooper Canyon at end of L St. 15 Comment
  HSC100398  Berberis nervosa Carl C. Marshall Apr 1886 67 Humboldt Woods in redwood belt. Comment
  UC1198381  Berberis nervosa Joseph P. Tracy 1926-6-13 7597 Humboldt Liscom Hill road near Blue Lake 152 Comment
  CAS-BOT-BC75799  Berberis pinnata Doris K. Kildale 1927-3-6 3001 Humboldt McDowell Butte. 914 Comment
  UC535776  Blechnum spicant Eleanor Armstrong 1934-8-24 1167 Humboldt Richardson Grove 121 Comment
  JEPS53053  Boechera acutina Joseph P. Tracy 1932-7-11 10396 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  RSA182046  Boisduvalia stricta Joseph P. Tracy 1916-6-19 4728 Humboldt Northern coast ranges: Forks of Dobbyn Creek 183 Comment
  HSC16673  Boschniakia strobilacea W. M. Lanphere 1937-5-11 Humboldt Hoopa Comment
  JEPS13526  Boschniakia strobilacea W. L. Jepson 1902-7-16 2052 Humboldt Trinity Summit. 2133 Comment
  HSC78085  Botrychium multifidum var. intermedium L. P. Janeway, Amy Eisenberg 1984-4-25 748 Humboldt On N Spit of Humboldt Bay, SE side of intersection of Samoa and Fairhaven rds. 3 Comment
  UC667114  Boykinia major Joseph P. Tracy 1934-7-18 13448 Humboldt Grouse Mountain , at top of mountain (swampy meadow at top of mountain) 1615 Comment
  CAS-BOT-BC420261  Boykinia occidentalis Ira L. Wiggins 1930-7-22 4694 Humboldt along bank of Redwood Creek between Blue Lake and Willow Creek Comment
  CAS-BOT-BC420266  Boykinia occidentalis L. R. Abrams 1922-6-25 8285 Humboldt Big Lagoon south of Orick Comment
  CAS-BOT-BC420271  Boykinia occidentalis Volney Rattan 1878-1-1 s.n. Humboldt unspecified Comment
  POM89211  Boykinia occidentalis L. R. Abrams 1922-6-25 8285 Humboldt Big Lagoon, south of Orick. Comment
  UC14495  Boykinia occidentalis W. C. Blasdale 1896-6-1 Humboldt Freshwater Comment
  CAS-BOT-BC420276  Boykinia occidentalis Doris K. Kildale 1927-6-25 3574 Humboldt Fearren's ranch between Thorn & Shelter Cove Comment
  RSA32654  Boykinia occidentalis Doris K. Kildale 1925-7-28 1100 Humboldt [Unspecified] Comment
  RSA466750  Boykinia occidentalis Thekla Mohr s.n. Humboldt Eel River. Humboldt and Mendocino Cos. Comment
  HSC39796  Brassica rapa Peter Sorensen 1976-5-29 Humboldt King Salmon Comment
  HSC45221  Briza maxima M. Alcasas 1978-5-28 110 Humboldt E end of Myrtle Ave., Eureka 8 Comment
  HSC59213  Briza maxima Terry Roth 1979-5-29 90 Humboldt Off Alliance Rd. near Westwood Ct. at bottom of hillside Comment
  RSA183611  Briza minor G. Bos 1965-5-15 252 Humboldt 8 miles west of Berry Summit along U.S. 299. 762 Comment
  POM277017  Brodiaea elegans subsp. elegans Lyman Benson 1929-7-19 1871 Humboldt Hills toward Matola River from Bull Creek. Comment
  SEINET200767  Brodiaea elegans subsp. elegans Joseph P. Tracy 1936-6-10 14925 Humboldt South Fork of Trinity River mountain slopes west of its mouth 305 Comment
  SEINET199104  Brodiaea stellaris Rimo Bacigalupi, L. Constance; Moran Carlquist. 1951-6-13 3406 Humboldt Along State Highway 36 5 miles east of Bridgeville Comment
  UC666934  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1927-6-8 8111 Humboldt Trinidad 3 Comment
  UC666940  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1936-5-30 14837 Humboldt near Samoa; Humboldt Bay 6 Comment
  RSA259587  Bromus carinatus D. E. Anderson, J. P. Smith 1971-6-28 1971 Humboldt ca. 2.5 mi. south of Blue Lake along the Mad River. Comment
  SEINET201049 Image available Bromus carinatus var. carinatus Joseph P. Tracy 1925-7-5 7162 Humboldt High Prairie on Bald Mountain 1067 Comment
  UC1130988  Bromus carinatus var. carinatus H. S. Yates 1936-6-17 5708 Humboldt Lower nw slope of Buck Mountain Buck Mountain 792 Comment
  UC34028  Bromus carinatus var. carinatus Henry Melde 1902-2-8 Humboldt Eureka Comment
  UC37672  Bromus carinatus var. carinatus J. Burtt Davy 1899-7-30 6179 Humboldt opposite Eureka (North Coast Ranges); North Coast Ranges Comment
  UC34027  Bromus catharticus Henry Melde 1902-2-8 Humboldt Eureka Comment
  BLMAR143  Bromus diandrus Donald Hazlett 1994-6-7 143 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC9271  Bromus diandrus J. W. Johnson 1962-4-18 1268 Humboldt Along the lane below the W.M. Lanphere Home, Samoa Peninsula Comment
  UC1145182  Bromus diandrus Joseph P. Tracy 1950-6-15 18775 Humboldt 5 mi n of Harris (Mail Ridge); Mail Ridge 944 Comment
  CAS-BOT-BC155425  Bromus hordeaceus Doris K. Kildale 1926-4-30 1930 Humboldt Frutland Hills. Harris Road. Comment
  CAS-BOT-BC155428  Bromus hordeaceus Doris K. Kildale 1929-5-26 9132 Humboldt Klamath River at Orleans. 152 Comment
  UC34065  Bromus hordeaceus J. P. Tracy 1901-6-16 1146 Humboldt immediate vicinity of Eureka 0 Comment
  UC525675  Bromus madritensis subsp. rubens Joseph P. Tracy 1933-6-25 12623 Humboldt 2 to 5 mi e of South Fork (along Eel River, Camp Grant); Eel River, Camp Grant 45 Comment
  UC1103270  Bromus orcuttianus Joseph P. Tracy 1948-8-15 18125 Humboldt 2 mi e of Grove's Prairie (near Elk Camp, Trinity Summit); Trinity Summit 1554 Comment
  UC1145162  Bromus orcuttianus Joseph P. Tracy 1949-7-19 18373 Humboldt Grouse Mountain on Friday Ridge, at Friday's Camp Friday Ridge; Grouse Mountain, , Friday's Camp 1219 Comment
  SEINET200935 Image available Bromus orcuttianus var. orcuttianus Joseph P. Tracy 1949-7-19 18373 Humboldt On Friday Ridge, at Friday's Camp. 1219 Comment
  HSC9265  Bromus racemosus E. W. Styskel 1964-5-7 78 Humboldt 2 mi. S of Samoa near Samoa Rd. Comment
  UC526728  Bromus tectorum Joseph P. Tracy 1931-5-3 9349 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  HSC58808  Bromus vulgaris G. L. Clifton 1979-7-31 11871 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC58810  Bromus vulgaris G. L. Clifton, Griswold 1979-8-1 11988 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  UCR51752  Buddleja davidii H. M. Pollard 1947-8-9 s.n. Humboldt North Coast Range, Klamath River near Harley Place, Orleans region Comment
Read comments
Apr 27 2007
  CHSC13868  Cakile maritima Tim Manolis 1974-3-16 27 Humboldt On south spit of Humboldt Bay, 5 mi. SW of Eureka. Comment
  HSC103973  Cakile maritima C. Reynolds 2015-3-16 18 Humboldt Along Freshwater Beach, due south of the Kuchel Visitor Center 1 Comment
  HSC64071  Cakile maritima J. P. Smith 1971-10-6 4956 Humboldt End of Murray Rd. in McKinleyville. Comment
  CAS-BOT-BC185317  Calamagrostis foliosa Joseph Burtt Davy 1900-5-1 6602 Humboldt Hardy Creek. Comment
  HSC79357  Calamagrostis foliosa Kenneth Clark 1980-5-10 641 Humboldt Shelter Cove, 5' above mean high tide, E facing coastal bluff Comment
  HSC97775  Calamagrostis foliosa C. Gillevan, C. Sander 2003-8-13 330 Humboldt Cliffs above Randal Creek, Cooksie Creek, and Gitchel Creek, in the King Range Area 9 Comment
  UCD56961  Calamagrostis foliosa Joseph P. Tracy 1938-6-17 15967 B Humboldt near 'Panther Gap' on road between Mattole and Bull Creek. 822 Comment
  HSC58672  Calamagrostis koelerioides Gilbert Muth 1979-8-1 12149 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UC1714425  Callitriche marginata Joseph P. Tracy 1901-6-30 1207 Humboldt Immediate Vicinity Eureka 0 Comment
  UCD149967  Callitriche palustris William Anderson; H. Mc. 1964-8-4 s.n. Humboldt McKinleyville, Shore Ares. Comment
  HSC12695  Callitriche stagnalis Jana Kattenhorn 1970-10-28 156 Humboldt Mad River at mouth of Lindsey Creek, North Bank Rd. off Hwy. 299, along Mad River Comment
  HSC59492  Callitriche stagnalis M. A. Ericksen 1979-4-22 216 Humboldt 1 mi. W of intersection of Mad River Rd. and Iverson, Arcata bottoms, city of Arcata Comment
  SD88550  Callitriche verna Darley F. Howe 1972-6-30 4847 Humboldt Trinidad Comment
  CAS-BOT-BC80382  Calocedrus decurrens Doris K. Kildale 1928-7-1 5313 Humboldt Klamath River at mouth of Bluff Creek Comment
  CAS-BOT-BC80385  Calocedrus decurrens Doris K. Kildale 1927-12-1 4203 Humboldt Klamath River at Orleans Comment
  HSC57987  Calocedrus decurrens G. L. Clifton, Griswold 1979-7-31 11728 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC58002  Calocedrus decurrens G. L. Clifton, Griswold 1979-7-31 11787 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC58016  Calocedrus decurrens G. L. Clifton 1979-7-31 11816 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  RSA47116  Calocedrus decurrens Doris K. Kildale 1926-8-15 2540 Humboldt Hoopa Mt. 579 Comment
  UCR84791  Calochortus amabilis Kathy Harper 1992-5-14 s.n. Humboldt S-facing road embankment on Hwy 254 (parallel to Hwy 101), where road follows S fork of Eel River, c. 1 mi north of Phillipsville 91 Comment
  HSC73066  Calochortus tolmiei M. A. Baker 1980-6-16 1946 Humboldt Near Onion Mtn. 1280 Comment
  UC1197673  Calochortus tolmiei Joseph P. Tracy 1921-4-24 5466 Humboldt Phillipsville, facing South Fork of Eel River Northern Coast Ranges 121 Comment
  HSC34875  Calochortus tolmiei Thomas W. Nelson, James Nelson 1975-5-5 1779 Humboldt Beside Hwy. 101, ~ 4 mi. S of the Salmon Creek Bridge Comment
  HSC82398  Caltha leptosepala Thomas W. Nelson 1979-7-11 5016 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  JEPS39006  Calycadenia truncata J. P. Tracy 1911-7-5 3334 Humboldt Willow Creek Trinity River, Willow Creek 152 Comment
  HSC74622  Calypso bulbosa M. A. Baker 1980-5-17 1230 Humboldt Near Le Perron Peak 792 Comment
  HSC48948  Calypso bulbosa M. A. Baker 1979-5-17 732 Humboldt On FS 1 along Wilson Creek, just E of FS 15N01 Comment
  RSA168802  Calypso bulbosa Joseph P. Tracy 1950-5-7 18643 Humboldt Under firs: about 5 miles north of Bridgerville on the road to the South Yager Valley. Abundant in certain favored spots only. Comment
  HSC38746  Calypso bulbosa var. occidentalis J. D. Ackerman 1976-4-27 754 Humboldt 10 mi. E of Blue Lake on road to Maple Creek Comment
  HSC102120  Calyptridium monospermum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1024 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC32545  Calystegia occidentalis subsp. occidentalis Thomas W. Nelson 1973-7-10 1030 Humboldt Humboldt/Trinity County line, Mt. Lassic (Signal Peak) 1790 Comment
  UC582720  Calystegia occidentalis subsp. occidentalis Joseph P. Tracy 1937-7-24 15531 Humboldt head of Little Hors-Linto Creek , head Little Hors-Linto Creek (Trinity Summit) 1371 Comment
  HSC6365  Calystegia soldanella R. E. Hafenfeld 1965-5-9 58 Humboldt Near mouth of Ossagon Cr. on Gold Bluff Beach Comment
  RSA34296  Calystegia soldanella J. Wendell Howe 1933-5-23 s.n. Humboldt Samoa Comment
  RSA603171  Calystegia soldanella D. D. Keck, Jens Clausen 1935-6-16 3384 Humboldt Mouth of Little River. Comment
  UC198628  Calystegia soldanella Joseph P. Tracy 1917-5-30 4803 Humboldt sand dunes near Little River; Northern Coast Ranges, near Little River 6 Comment
  UC1225829  Camassia quamash Joseph P. Tracy 1947-6-26 17743 Humboldt near McKay Camp (South Fork Mountain); South Fork Mountain 1676 Comment
  HSC38195  Camissonia cheiranthifolia Peter Sorensen 1976-6-4 Humboldt N Spit of Humboldt Bay, S of Samoa near airport Comment
  RSA697219  Camissonia cheiranthifolia subsp. cheiranthifolia George K. Helmkamp, E. A. Helmkamp 2001-7-8 7021 Humboldt North coast: Samoa Peninsula, 2.6 miles S of CA-255 bridge across Humboldt Bay. 15 Comment
  RSA167258  Camissonia ovata Joseph P. Tracy 1951-5-5 19392 Humboldt Carlotta, open flat by old Strong s District School House, 5 miles east of town 61 Comment
  SBBG52988  Camissoniopsis cheiranthifolia subsp. cheiranthifolia J. D. Hobson -Jul-1966 Humboldt S end of sand spit forming Eureka Harbor, 10 mi S of Eureka; Loleta Comment
  CAS-BOT-BC160233  Camissoniopsis cheiranthifolia subsp. cheiranthifolia T. Mosquin; L. Mosquin 1962-7-19 4489 Humboldt 8.8 miles north of Big Lagoon along US highway 101 to Oregon Comment
  SEINET10462871  Campanula prenanthoides Chandler 1901-6-14 CHANDLER 1476 Humboldt KLAMATH RIVER, ORLEANS TO SOMES BAR 1000 Comment
  SEINET10462889  Campanula prenanthoides LeRoy R. Abrams 1918-6-16 Abrams 7184 Humboldt WILLOW CREEK, LOWER EDGE OF TRANSITION ZONE Comment
  SEINET10462960  Campanula prenanthoides Klipfel 1973-8-3 KLIPFEL 309 Humboldt Along ridge trail southeast of North Trinity Mountain. T8N R6E Secs. 11, 14 1829 Comment
  SEINET10462965  Campanula prenanthoides Aven Nelson, Ruth A. Nelson 1977-7-1 Nelson 3562 Humboldt Along north slope of ridge between Bear & Blanket Creeks. T1S R5E SEC.25 1494 Comment
  SEINET10462968  Campanula prenanthoides James P. Smith 1977-7-3 Smith, Jr. 9236 Humboldt Six Rivers National Forest; on the road to Onion Lake, 4.7 miles from it junction with State Route 36. T10N R4E Sec. 11 610 Comment
  SEINET10840306  Campanula prenanthoides Bruce Allen 1936-7-14 Allen 36 A243 Humboldt Willow Creek Comment
  SEINET10463418  Campanula scouleri Griswold 1979-7-11 GRISWOLD 6946 Humboldt NR SNOW CAMP MTN, IAQUA BUTTES QUAD. NR WILLOW CR. EVERGREEN CONIFER FOREST, MEADOW, 4331 Comment
  SEINET10463747  Campanula scouleri Overton 1979-7-23 OVERTON 9497 Humboldt Near Titlow Hill, on the Willow Creek quadrangle, close to the town of Willow Creek 1280 Comment
  JEPS11738  Campanula scouleri W. L. Jepson 1902-7-30 2128 Humboldt Three Creeks to Redwood Creek 914 Comment
  RSA46687  Campanula scouleri Doris K. Kildale 1937-7-18 15143 Humboldt Horse Mt. Comment
  SEINET10463479  Campanula scouleri Manning MANNING [ 305 ] Humboldt Near Hupa (Bald Hills). 457 Comment
  SEINET10463749  Campanula scouleri Tracy 1908-6-27 TRACY 2858 Humboldt Valley of Van Duzen River, opposite Buck Mountain, in woods. 762 Comment
  JEPS53293  Capsella bursa-pastoris Lincoln Constance 1934-6-12 870 Humboldt Bull Creek road and n bank of South Fork Eel River South Fork Eel River; Bull Creek Region, Dyerville, South Fork Eel River Comment
  UC492256  Cardamine angulata Joseph P. Tracy 1928-4-29 8425 Humboldt Prairie Creek Northern Coast Ranges, Prairie Creek 152 Comment
  HSC38209  Cardamine breweri Thomas W. Nelson, J. P. Smith 1976-4-25 2382 Humboldt Brazil Ranch E of Hwy. 101 near College of the Redwoods Comment
  UC1199182  Cardamine californica Joseph P. Tracy 1935-3-10 13732 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River (on Van Duzen River) 91 Comment
  UC1199190  Cardamine californica Joseph P. Tracy 1913-3-30 4031 Humboldt Eureka Northern Coast Region, Eureka 0 Comment
  UC668051  Cardamine californica var. sinuata Joseph P. Tracy 1938-5-8 15739 Humboldt Blue Slide on Van Duzen River; on Van Duzen River, Blue Slide 91 Comment
  UC492258  Cardamine nuttallii Joseph P. Tracy 1932-7-15 10599 Humboldt ridges e Corral Prairie (Trinity Summit); Klamath Mountains, , e of Corral Prairie 1828 Comment
  CAS-BOT-BC37894  Cardamine oligosperma Duart V. Brown 1947-3-27 16 Humboldt Near Tectah Creek, Klamath River. Comment
  UC668057  Cardamine pensylvanica Joseph P. Tracy 1937-7-2 15401 Humboldt head Little Hors-Linto Creek , head Little Hors-Linto Creek (Trinity Summit) 1371 Comment
  CHSC68780  Cardionema ramosissimum Vernon Oswald 1997-6-5 8537 Humboldt Somoa Dunes Recreation Area at the south tip of the North Spit of Humboldt Bay. Along the road to the jetty. 6 Comment
  CDA18246  Carduus tenuiflorus G. D. Barbe, T. C. Fuller 1974-6-18 1884 Humboldt North Coast Ranges; Fortuna bottoms, Grizzly Bluff; Waddington Rd. 1/4 mi N of Pleasant Point Rd. (Ferndale Bottoms) 2 mi N of Grizzly Bluff Rd. 0 Comment
  CHSC107135  Carex abrupta R. E. Brainerd 2009-7-23 1568 Humboldt North Coast Range, South Fork Mountain; 19.6 miles west-northwest of Hayfork. UTM Zone 10 453477E 4494945N. 1661 Comment
  CAS-BOT-BC17792  Carex amplifolia Doris Kildale 1931-6-6 10865 Humboldt Gans Prairie, Orick - Weitchpec road. Comment
  CAS-BOT-BC18002  Carex aquatilis var. dives Joseph Prince Tracy 1934-7-30 13504 Humboldt Dry Lagoon (along coast in front of South End of Stone Lagoon). 3 Comment
  UC562287  Carex aquatilis var. dives Joseph P. Tracy 1934-7-30 13504 Humboldt along coast in front of South End of Stone Lagoon (Dry Lagoon); Dry Lagoon 6 Comment
  POM160305  Carex arcta Joseph P. Tracy 1926-7-5 7723 Humboldt Near the Redwood House, on the road to head of Yager 610 Comment
  HSC74693  Carex athrostachya Gail Newton 1981-8-6 2403 Humboldt Near Humbug Creek 1256 Comment
  UC562629  Carex athrostachya Joseph P. Tracy 1935-7-23 14140 Humboldt Trinity summit, Corral Prairie Comment
  UC562435  Carex buxbaumii Joseph P. Tracy 1927-4-23 7916 Humboldt Big Lagoon 3 Comment
  JEPS25964  Carex densa Joseph P. Tracy 1927-5-30 8095 Humboldt Vicinity of Garberville 121 Comment
  UC1103109  Carex deweyana subsp. leptopoda Joseph P. Tracy 1936-6-21 14992 Humboldt Iaqua North Coast Ranges 609 Comment
  UC195347  Carex deweyana subsp. leptopoda Joseph P. Tracy 1916-6-25 4746 Humboldt Redwood Creek, at point E from Trinidad 152 Comment
  POM160306  Carex echinata subsp. echinata Joseph P. Tracy 1926-6-27 7666 Humboldt Horse Mountain 1463 Comment
  HSC96492  Carex echinata subsp. phyllomanica Gordon Leppig 1998-6-8 798 Humboldt Big Lagoon Bog, Big Lagoon County Park 3 Comment
  RSA12426  Carex exsiccata Carl B. Wolf 1934-7-2 5868 Humboldt Small Lake at Snow Camp. (Mountains east of Korbel). 1372 Comment
  UC1755279  Carex geyeri Dean W. Taylor 2007-7-11 20162 Humboldt Horse Mountain; Six Rivers National Forest, Titlow Hill Road at the junction with Forest Road 6N18 1432 Comment
  JEPS25967  Carex globosa Joseph P. Tracy 1932-4-23 9832 Humboldt Englewood North Coast Ranges, Englewood 91 Comment
  POM160289  Carex globosa Joseph P. Tracy 1925-6-7 7064 Humboldt East Fork of Willow Creek, Willow Creek Canyon. 457 Comment
  UC197207  Carex gynodynama Joseph P. Tracy 1908-6-7 2620 Humboldt Northern Coast Ranges, Butler Valley. Comment
  SEINET8068029 Image available Carex harfordii A. L. Hipp 1999-1 438 Humboldt Phillipsville-Edge of 101 (Redwood Hwy), big E-turn just S. of the Miranda exit. Comment
  HSC76807  Carex harfordii L. P. Janeway 1982-6-17 10 Humboldt 305 Comment
  CHSC43908  Carex hendersonii L. P. Janeway 1984-5-27 836 Humboldt Ca 1 mi east of Redway, along Redwood Cr. 91 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
  CHSC90288  Carex hoodii Thomas W. Nelson; Jane P. Nelson 1987-6-11 8579 B Humboldt North Coast Ranges. At trail head and along trail to Grogans Hole. Comment
  HSC102203  Carex integra M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1118 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  SEINET3836749 Image available Carex integra Joseph P. Tracy 1926-7-5 7723 Humboldt Near the Redwood House, on road to head of Yager Comment
  CHSC93262  Carex lenticularis var. impressa Thomas W. Nelson; Jane P. Nelson 1987-6-11 8583 Humboldt North Coast Ranges. At trail head and along trail to Grogans Hole. Comment
  UC249732  Carex lenticularis var. limnophila Joseph P. Tracy 1924-7-13 6719 Humboldt Big Lagoon Northern Coast Region 6 Comment
  HSC7139  Carex leptalea B. D. Rogers 1965-10-2 1021 Humboldt Big Lagoon 0 Comment
  HSC76798  Carex leptopoda L. P. Janeway 1982-6-16 8 Humboldt Near small tributary to Jolly Giant Creek below Arcata High school 9 Comment
  JEPS79849  Carex lyngbyei Joseph P. Tracy 1927-7-16 8248 Humboldt near mouth Elk River (around Humboldt Bay); Northern Coast Region 3 Comment
  UC562657  Carex mariposana Joseph P. Tracy 1935-7-23 14141 Humboldt Corral Prairie Trinity Summit 1584 Comment
  CAS-BOT-BC146625  Carex mendocinensis Joseph P. Tracy 1935-7-14 14086 Humboldt Grouse Mountain 1524 Comment
  HSC70323  Carex multicaulis M. A. Baker 1980-6-7 1875 Humboldt Near Ammon Creek 732 Comment
  HSC98955  Carex multicaulis Cara Witte 2008-7-3 826 Humboldt Friday Ridge Road/ 6N08. Approximately 1 mile north of intersection with National Forest 1. 1567 Comment
  HSC48403  Carex multicostata Brad Klipfel 1973-6-10 95 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CHSC40169  Carex nudata L. P. Janeway 1984-5-13 777 Humboldt Along the North Fork Yager Creek 18 miles east of the Kneeland P.O. on the Kneeland/Bridgeville Road. 381 Comment
  CAS-BOT-BC119543  Carex nudata L. P. Janeway 1983-7-23 436 Humboldt Willow Creek quad. Along the W edge of Trinity River near the Willow Creek Airstrip. 137 Comment
  HSC70472  Carex nudata J. P. Tracy 1911-6-4 3220 Humboldt Along Little River, 5 mi. from coast 122 Comment
  CHSC88893  Carex obnupta L. P. Janeway; B. Castro 2004-9-10 8319 Humboldt North Coast. South Spit of Humboldt Bay, 3.6 km north-northeast of Table Bluff Lighthouse site; between South Spit Road and the Humboldt Bay mudflats. 2 Comment
  HSC104103  Carex obnupta Kyle Brown 2015-4-25 45 Humboldt Arcata, along trail at Mad River 15 Comment
  HSC37945  Carex obnupta P. D. Sorensen 1976-6-12 Humboldt Humboldt Bay, Woodley Island Comment
  UC249766  Carex obnupta Joseph P. Tracy 1923-6-24 6371 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  UCR26525  Carex obnupta A. C. Sanders 1981-8-6 2301 Humboldt Near Orick, 1.6 mi west of Hwy 101 on Davison Road toward Gold Bluffs Beach Comment
  POM126147  Carex pachystachya Joseph P. Tracy 1923-6-17 6278 Humboldt Big Lagoon 6 Comment
  UC302099  Carex pachystachya Joseph P. Tracy 1911-7-7 3390 Humboldt three mi nw junction of Willow Creek with Trinity River (at meadows on mt. side, near Beebe's Ranch); Northern Coast Ranges; NW of junction of Willow Creek w/ Trinity River, Humboldt Co., near Beebe's Ranch. 914 Comment
  HSC45390  Carex pachystachya Thomas W. Nelson, Jane P. Nelson 1978-7-2 4406 Humboldt Off FS 2S08 near Pine Mtn., road to Lost Lake 1463 Comment
  HSC49246  Carex pansa Rudolf W. Becking 1979-3-25 Humboldt U.S. Coast Guard Station along N Spit Humboldt Bay, Fairhaven Comment
  HSC82401  Carex scopulorum var. bracteosa Thomas W. Nelson 1979-7-11 5013 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC102533  Carex spectabilis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1519 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  UC562269  Carex stipata var. stipata Joseph P. Tracy 1931-5-17 9422 Humboldt opposite mouth Willow Creek (Lack Pond); Northern Coast Ranges, Trinity River Valley 152 Comment
  CAS-BOT-BC116942  Carex subbracteata Joseph Prince Tracy 1935-7-27 14296 Humboldt Trinity Summit, open places at McKay Prairie. 1584 Comment
  JEPS79863  Carex subbracteata Joseph P. Tracy 1916-5-31 4695 Humboldt along Eel R. from S. Fork to Scotia (Holmes Flat); Northern Coast Ranges, Eel River, Holmes Flat 60 Comment
  JEPS63534  Carex tumulicola W. L. Jepson 1932-8-9 16535 Humboldt Bull Creek 106 Comment
  UC562336  Carex tumulicola Harold E. Parks and Joseph P. Tracy 1935-6-16 11270 Humboldt lower nw slopes Buck Mt. 792 Comment
  NY11391  Carex unilateralis J. P. Tracy 1912-7-21 3783 Humboldt 30.5 Comment
  HSC45970  Carex vesicaria J. P. Smith, Steve Selva 1970-6-30 4133 Humboldt Comment
  HSC7090  Carex viridula B. D. Rogers 1965-10-2 1017 Humboldt Big Lagoon 0 Comment
  CHSC97051  Carex viridula subsp. viridula Gordon Leppig 1997-8-3 639 Humboldt Big Lagoon County Park. Big Lagoon Bog. Common on northern edge. NAD27 UTM Zone 10, 405321E 4557202N. 3 Comment
  HSC2874  Carpobrotus edulis C. B. Wolf 1927-8-29 1212 Humboldt Along the coast just S of Cape Mendocino. Comment
  CAS-BOT-BC249128  Castilleja affinis Doris Kildale Gillespie 1931-6-7 10652 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  HSC103410  Castilleja affinis subsp. affinis Kaylea Eickhoff, Cara M. Witte 2005-6-10 9 Humboldt Coldspring Camp, 7.4 mi. S of Hwy. 299 on NF1 1370 Comment
  HSC95751  Castilleja ambigua subsp. humboldtiensis Thomas W. Nelson, Jane P. Nelson 2004-4-20 9182 Humboldt At estuary to Elk River, SE of mouth 2 Comment
  UC1222799  Castilleja ambigua subsp. humboldtiensis Joseph P. Tracy 1950-6-17 18839 Humboldt Eureka slough at the railroad bridge Eureka Comment
  SBBG54572  Castilleja exserta subsp. latifolia F. W. Pennell, J. Tracy 1940-7-6 26085 Humboldt back of beach, Table Bluff, W of Loleta Comment
  HSC35453  Castilleja exserta subsp. latifolia J. D. Ackerman 1975-8-2 623 Humboldt North Spit Humboldt Bay, W of Samoa, across from 2nd exit Comment
  HSC49985  Castilleja pruinosa M. A. Baker 1979-6-7 785 Humboldt N bank of road to Snow Mtn. 610 Comment
  UC1222828  Castilleja pruinosa Joseph P. Tracy 1950-7-2 18978 Humboldt below Grizzly Camp (at crossing of Little Hors Linto Creek); Little Hors Linto Creek Comment
  UC902253  Castilleja pruinosa Joseph P. Tracy 1949-6-25 18341 Humboldt 1 mi w Mud Springs; Trinity Summit 1158 Comment
  UC1502102  Ceanothus R. Sutherland 1975-7-4 3 .4.7 75 Humboldt se corner of S 11 Pt. Delgada Quad. 548 Comment
  UC1502122  Ceanothus R. Sutherland 1976-4-24 2 Humboldt Garberville 518 Comment
  SBBG115928  Ceanothus arcuatus J. M. Tucker 1948-9-3 1852 Humboldt House Mtn at jct of rd to Grouse Mtn and rd to Horse Mtn Mine 1463 Comment
  HSC78651  Ceanothus cordulatus D. K. Imper 1982-7-13 1485 Humboldt Near Chaparral Mtn. 1386 Comment
  UC1198032  Ceanothus cordulatus Joseph P. Tracy 1935-7-14 14092 Humboldt near Clear Lake (ridge); Northern Coast Ranges 1524 Comment
  CAS-BOT-BC49316  Ceanothus cuneatus L. B. Kildale 1930-9-21 10229 Humboldt Bluff Creek trail to Fish Lake Comment
  CAS-BOT-BC49317  Ceanothus cuneatus Doris K. Kildale 1926-8-15 2538 Humboldt Hoopa Mountain near Old Mill 579 Comment
  CDA35561  Ceanothus cuneatus subsp. cuneatus Gordon Leppig 1998-6-1 877 Humboldt Horse Mountain. Titlow Hill Road. Comment
  OBI35865  Ceanothus cuneatus var. cuneatus David J. Keil 1983-7-2 17328 Humboldt Horse Mtn Summit SW of Willow crk Comment
  UC275318  Ceanothus foliosus Joseph P. Tracy 1923-6-20 6322 Humboldt Chamisal Mountain, near Shelter Cove 304 Comment
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Aug 4 2016
  UC668166  Ceanothus foliosus Joseph P. Tracy 1937-5-30 15314 Humboldt 3 mi s Bridgeville (by roadside.) 457 Comment
  CAS-BOT-BC50041  Ceanothus incanus C. Hart Merriam 1920-8-30 s.n. Humboldt South Fork Eel River near Garberville (near old bridge) Comment
  CAS-BOT-BC50052  Ceanothus incanus H. E. McMinn 1922-8-3 382 Humboldt South Fork Eel River Comment
  CAS-BOT-BC50055  Ceanothus incanus W. R. Dudley 1899-6-20 s.n. Humboldt Near Eel River in woods Comment
  JEPS42412  Ceanothus incanus Lincoln Constance 1934-6-15 884 Humboldt summit of Grasshopper Peak South Fork Eel River Comment
  RSA134579  Ceanothus incanus Percy C. Everett, E. K. Balls 1959-10-26 23977 Humboldt 6 mi SE from Honeydew on Old Coast Road to Ettersberg. 518 Comment
  CAS-BOT-BC63679  Ceanothus integerrimus L. B. Kildale 1927-7-3 3635 Humboldt Willow Creek Flat. 152 Comment
  CAS-BOT-BC63684  Ceanothus integerrimus Harley P. Chandler 1901-6-1 1338 Humboldt Hupa Indian Reservation. 152 Comment
  HSC40027  Ceanothus integerrimus Thomas W. Nelson, Jane P. Nelson 1976-6-22 2873 Humboldt At Goat Hill Lookout 1666 Comment
  UCR32170  Ceanothus integerrimus David J. Keil 1983-7-2 17325 Humboldt c. 4 mi SE of SR 299 along Titlow Hill Rd below Horse Mountain Summit Road Comment
  CAS-BOT-BC51144  Ceanothus lemmonii D. Haskamp; E. Sonnenblick; M. Taft 1995-4-23 38 Humboldt On rd. A16 NE of Basin Gulch campground 11 miles. On west side of road 731 Comment
  SD42404  Ceanothus parryi Carl B. Wolf 1941-7-27 11086 Humboldt N. Coast ranges, 5.8 mi. W. Maple Creek on road to Freshwater 609 Comment
  UCSB11762  Ceanothus parryi Neuns, R. 1940-7-13 Humboldt 3 miles south of Alder Point 548 Comment
  CAS-BOT-BC52043  Ceanothus prostratus Joseph P. Tracy 1927-5-15 8056 Humboldt Hoopa Mountain. On road West from Hoopa Valley, in open forest of yellow and sugar pines 914 Comment
  CAS-BOT-BC52045  Ceanothus prostratus Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  HSC23294  Ceanothus pumilus D. E. Anderson, J. P. Smith 1971-7-6 - 1311 Humboldt Horse Mtn. 10 mi W of Willow Creek 1524 Comment
  HSC43186  Ceanothus pumilus R. Sutherland 1976-4-17 3 .17476 Humboldt 549 Comment
  HSC43188  Ceanothus pumilus R. Sutherland 1976-4-17 1 .17476 Humboldt 549 Comment
  HSC43230  Ceanothus pumilus R. Sutherland 1976-4-17 4 .17476 Humboldt 549 Comment
  HSC44398  Ceanothus pumilus Brad Klipfel 1975-5-24 633 Humboldt Horse Mtn. Comment
  CAS-BOT-BC52990  Ceanothus thyrsiflorus Duncan Dunning 1921-10-2 705 Humboldt Trinidad 30 Comment
  RSA46882  Ceanothus thyrsiflorus Doris K. Kildale 1926-6-18 2399 Humboldt Gold Bluffs. Comment
  HSC101670  Ceanothus thyrsiflorus var. thyrsiflorus J. P. Smith, J. O. Sawyer 2011-4-23 13131 Humboldt Kings Peak Road, 3.2 miles from its junction with Shelter Cove Rd Comment
  UCD112839  Ceanothus velutinus J. Street 1950-6-24 s.n. Humboldt Close to coast north of Usal. Comment
  HSC56255  Ceanothus velutinus var. velutinus Walter Overton 1979-8-1 12389 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1341 Comment
  CDA7083  Centaurea calcitrapa T. C. Fuller 1960-8-25 4974 Humboldt Around Pacific Lumber Company barn, across Eel River from South Fork. 0 Comment
  SEINET200849  Centaurea cyanus Joseph P. Tracy 1918-7-1 4963 Humboldt Along Eel River from South Fork to Scotia; Holmes Flat 61 Comment
  RSA34006  Centaurea melitensis J. Wendell Howe 1933-7-26 s.n. Humboldt Mad River near Blue Lake Comment
  CDA7306  Centaurea nigra K. E. Frick 1961-8-16 Humboldt Eureka. Near fairgrounds. 0 Comment
  UC302186  Centaurea solstitialis Joseph P. Tracy 1926-8-22 7772 Humboldt McClellan Mountain North Coast Ranges, McClellan Mountain 609 Comment
  RSA424591  Centaurea solstitialis Thomas S. Elias, Barbara A. Elias 1987-8-26 10626 Humboldt Fernbridge, 0.5 mile S of Route 101; along West bank of Eel River, about 0.5 mile N of bridge Comment
  JEPS46932  Centaurium muehlenbergii Joseph P. Tracy 1934-7-9 13347 Humboldt Dobbyn Creek 152 Comment
  UC1198630  Centaurium muehlenbergii Joseph P. Tracy 5208 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1198614  Centunculus minimus Joseph P. Tracy 1934-6-23 13254 1/2 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  HSC4095  Cerastium arvense Lincoln Constance 1934-6-3 805 Humboldt Rd. from High Rock on Redwood Hwy. 1 mi. N of Dyerville to Horse Prairie, S Fork Eel River, Bull Creek Comment
  UC161007  Cerastium fontanum subsp. vulgare Joseph P. Tracy 1907-5-20 2561 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  UC668109  Cerastium fontanum subsp. vulgare Joseph P. Tracy 1933-5-28 12412 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  HSC98809  Cerastium fontanum subsp. vulgare Cara Witte 2008-8-5 986 Humboldt Buck Flat. Intersection of National Forest 1 and Forest Service Road 5N01. 1569 Comment
  HSC74273  Cerastium glomeratum M. A. Baker 1980-5-23 1381 Humboldt Near Buck Mtn. 1524 Comment
  HSC99051  Chamaecyparis lawsoniana Cara Witte 2008-6-27 772 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles east of intersection with National Forest 1. 1365 Comment
  SEINET10719673  Chamaecyparis lawsoniana Ronald J. Mastrogiuseppe 1966-1 Mastrogiuseppe s.n. Humboldt Growing in upper Bull Creek, Humboldt Redwoods State Park. Comment
  UC535755  Chamaesyce serpyllifolia Eleanor Armstrong 1934-8-6 1126 Humboldt Richardson Grove 121 Comment
  UC198574  Chamaesyce serpyllifolia Joseph P. Tracy 1916-9-5 4769 Humboldt 4 mi above Eel River (South Fork); Northern Coast Ranges 60 Comment
  JEPS39310  Chamerion angustifolium subsp. circumvagum W. L. Jepson 1921-9-20 10654 Humboldt s Garberville; South Fork Eel River, Richardson Grove Comment
  UC132200  Chenopodium album Joseph P. Tracy 1905-10-1 2394 Humboldt near mouth of Elk River; Northern Coast Range, region about Humboldt Bay 0 Comment
  JEPS59693  Chenopodium ambrosioides Joseph P. Tracy 1934-8-4 13552 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC460963  Chenopodium atrovirens Joseph P. Tracy 1932-7-13 10500 Humboldt Trinity Summit: open places at Corral Prairie 1584 Comment
  UC79873  Chenopodium rubrum Harold E. Parks and Joseph P. Tracy 1934-10-13 11151 Humboldt Big Lagoon; shore 3 Comment
  UC1197597  Chimaphila menziesii Joseph P. Tracy 1926-6-6 7583 Humboldt near summit on rd. w. from Hoopa to Bair's (Hoopa Mt.); Northern Coast Ranges, Hoopa Mt. 1066 Comment
  HSC41240  Chimaphila umbellata Brad Klipfel 1974-5-27 379 Humboldt Horse Mtn., NE face away from towers Comment
  HSC54590  Chimaphila umbellata Overton, Butler 1979-7-24 9658 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC72793  Chimaphila umbellata M. A. Baker 1980-6-16 1925 Humboldt Near Monks Camp. 1097 Comment
  UC1197594  Chimaphila umbellata Joseph P. Tracy 1911-7-7 3421 Humboldt ridge n. of Willow Creek (between Willow & Campbell Creeks, Brannan Mt, near summit); Northern Coast Ranges, Brannan Mt. 1219 Comment
  CAS-BOT-BC497671  Chlorogalum pomeridianum L. R. Abrams 1918-6-16 7191 Humboldt Willow Creek Comment
  UC14998  Chlorogalum pomeridianum var. pomeridianum P. E. Goddard 1901-7 44 Humboldt Hupa Valley Comment
  CAS-BOT-BC236918  Chloropyron maritimum subsp. palustre Joseph P. Tracy 1938-7-15 16064 Humboldt At Fields Landing, around Humboldt Bay 3 Comment
  CAS-BOT-BC36482  Chrysolepis chrysophylla Doris K. Kildale 1926-8-20 2570 Humboldt Bald Hills, east end of prairie near Tomlinson's 716 Comment
  CAS-BOT-BC36485  Chrysolepis chrysophylla Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of orleans Mt. 1828 Comment
  UC1119747  Cichorium intybus H. L. Person 1932-8-7 Humboldt Korbel Eureka Comment
  JEPS156  Cicuta douglasii W. L. Jepson 1936-8-17 17930 Humboldt near Arcata (s of Salmon Creek, Mad River); Mad River Comment
  UC180176  Cicuta douglasii Joseph P. Tracy 1914-9-6 4612 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mountain 1219 Comment
  RSA183599  Cinna latifolia D. E. Anderson 1965-9-5 4085 Humboldt Along Mad river, ca. 3 miles south of Blue Lake Comment
  HSC53929  Circaea alpina subsp. pacifica Griswold, Butler 1979-7-11 6944 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  CDA20043  Cirsium arvense E. Finley 2002-8-8 PDR 1035509 Humboldt Northwestern California; 0.7 mi S of Del Norte county on Hwy 101 between MM 136.36 and MM 136.38. 0 Comment
  HSC5373  Cirsium arvense Paul Shields 1955-9-29 Humboldt 1/2 mi. S Fernbridge Comment
  SEINET5507070 Image available Cirsium arvense John Thomas Howell 1931-6-17 6724 Humboldt Redwood Hwy, 1.5 mi N of Orick Comment
  HSC91921  Cirsium brevistylum E. Mackey 1987-9-5 Humboldt Patricks Point State Park; in dune area Comment
  CAS-BOT-BC279976  Cirsium douglasii var. douglasii Peter H. Raven; R. Snow 1958-7-20 13647 Humboldt Along Titlow Hill Road 3.8 miles south of United States Highway 299 Comment
  JEPS59231  Cirsium occidentale var. candidissimum W. L. Jepson 1902-8-5 2148 Humboldt Eltersburg to Briceland Comment
  UC1223057  Cirsium occidentale var. candidissimum Joseph P. Tracy 1950-8-4 19257 Humboldt at head of Canoe Creek; Bull Creek State Park, Grasshopper Peak, Canoe Creek Comment
  CAS-BOT-BC285580  Cirsium occidentale var. occidentale L. R. Abrams 1916-7-18 6142 Humboldt At Trinidad Comment
  SEINET11836350  Cirsium pastoris J. P. Tracy 1942-1 17302 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC288722  Cirsium remotifolium Joseph P. Tracy 1934-7-6 13659 Humboldt Kneeland Prairie 762 Comment
  UC302188  Cirsium remotifolium Joseph P. Tracy 1926-7-5 7740 Humboldt Iaqua Northern Coast Ranges, Iaqua 609 Comment
  HSC98726  Cirsium remotifolium var. odontolepis Cara Witte 2008-7-2 806 Humboldt Forest Service Road 4N38. 2 miles north of intersection to Board Camp Lookout. Near gate. 1401 Comment
  UC1223054  Cirsium remotifolium var. odontolepis Joseph P. Tracy 1949-8-11 18481 Humboldt 2 to 6 mi s from Grouse Mt. (e of the headwaters of Redwood Creek, s from electric power line); Kinsey Ridge 1280 Comment
  SBBG65940  Cirsium vulgare R. Hartwell 1938-8-3 103 Humboldt near Weott Comment
  UC1052188  Cirsium vulgare J. L. Meyer 1954-10-11 30 Humboldt 3 m n Blocksburg; Quad. No. 29A3 457 Comment
  CAS-BOT-BC285771  Cirsium vulgare John Thomas Howell 1931-6-17 6723 Humboldt Redwood Highway 1 1/2 miles n. of Orick Comment
  CAS-BOT-BC160917  Clarkia amoena subsp. amoena C. Hart Merriam 1922-7-13 s.n. Humboldt Fortuna Comment
  CAS-BOT-BC160954  Clarkia amoena subsp. amoena Doris K. Kildale 1928-6-17 5233 Humboldt Miranda, south fork of Eel River Comment
  BLMAR1  Clarkia amoena subsp. amoena Jennifer Anthony-Wheeler 1993-7-30 1 Humboldt King range, growing scattrd through coastal grassland along smith-etter 15 Comment
  CAS-BOT-BC160946  Clarkia amoena subsp. amoena Roxana S. Ferris 1937-8-21 9385 Humboldt Above terrace at Shelter Cove Comment
  JEPS43543  Clarkia amoena subsp. huntiana W. L. Jepson 1927-7-3 12369 Humboldt Garberville 228 Comment
  HSC35277  Clarkia concinna subsp. concinna J. D. Ackerman, A. M. Montalvo 1975-6-22 494 Humboldt 6.4 mi. W of Dinsmore, Hwy. 36 Comment
  RSA20945  Clarkia concinna subsp. concinna Carl B. Wolf 1937-6-19 8917 Humboldt North Coast Ranges, Van Duzen River, 2.8 miles West of Dinsmores 457 Comment
  CAS-BOT-BC172510  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1932-6-26 10264 Humboldt Valley of South Yager Creek 762 Comment
  RSA108219  Clarkia purpurea subsp. quadrivulnera Harlan Lewis, M. Lewis 1947-6-14 418 Humboldt Highway 36, 0.1 mile east of Van Duzen River Bridge (4.129) Comment
  UC180232  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1914-7-5 4559 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  JEPS43680  Clarkia rhomboidea Lincoln Constance 1934-6-15 880 Humboldt Summit Grasshopper Peak; South Fork Eel River, Bull Creek Region 975 Comment
  UC668286  Clarkia rhomboidea Joseph P. Tracy 1937-7-24 15527 Humboldt 2 mi se Devil's Hole; Trinity Summit 1524 Comment
  JEPS127651  Claytonia Jurriaan M. de Vos 2014-7-1 301 Humboldt Along Bald Hills Road, near Dolason trail head parking. Comment
  CHSC93570  Claytonia perfoliata subsp. mexicana Charles E. Fellows 1972-4-29 484 Humboldt 8 mi. e.s.e. of Eureka, 3.1 mi. above town of Freshwater on the w. side of road to Kneeland. Ca. 20 m below road. 609 Comment
  JEPS43187  Claytonia perfoliata subsp. mexicana Joseph P. Tracy 1916-4-30 4682 Humboldt Table Bluff Northern Coast Ranges, Humboldt Bay (aroung Humboldt Bay) 152 Comment
  HSC24337  Claytonia perfoliata subsp. perfoliata C. E. Fellows 1971-8-16 398 Humboldt Clam Beach, near end of Central Ave. Comment
  UC672999  Claytonia rubra subsp. rubra Joseph P. Tracy 1937-5-17 15286 Humboldt Willow Creek; Trinity River Valley 152 Comment
  HSC32285  Claytonia saxosa D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5623 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  CAS-BOT-BC443895  Claytonia sibirica Harley P. Chandler 1901-5-1 1264 Humboldt North Coast Ranges. Redwood Belt 152 Comment
  CHSC32852  Claytonia sibirica Lora L. Anderson 1981-4-26 13 Humboldt Small population ca. 0.5 mi e of ocean (Moon-Stone Beach) 0.5 mi w of Hwy 101, 11.5 mi n of Arcata. 0 Comment
  HSC104049  Claytonia sibirica E. R. Fyer 2015-4-29 28 Humboldt Arcata Community Forest 92 Comment
  HSC31553  Claytonia sibirica Glenn McGourty 1974-5-11 43 Humboldt Along Maple Creek Rd. Comment
  HSC59580  Claytonia sibirica Rick Lundquist 1979-4-6 1 Humboldt Arcata, SE Corner of 7th and Union St. 24 Comment
  RSA271707  Claytonia sibirica Jane Turner, Francis M. Ball 1962-7-9 1133 ` Humboldt Redwood forest, beside scenic rdwood Hwy 2 miles S of jct with freeway, 40 miles N of Mendocino-Humboldt County line Comment
  HSC45613  Claytonia sibirica Diane L. Reed 1978-5-7 56 Humboldt Fourmile Creek on Friday Ridge Rd., 4 mi. from Hwy. 299 Comment
  HSC59143  Claytonia sibirica Terry Roth 1979-5-29 97 Humboldt On the trail from HSU gym to Fern Lake Comment
  UCD100897  Claytonia sibirica James P. Smith 1973-5-26 6850 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Railroad right-of-way. Comment
  HSC24331  Claytonia washingtoniana C. E. Fellows 1971-6-7 453 Humboldt 0.2 mi. E of RR track on West End Rd., above the Mad River Comment
  CAS-BOT-BC92591  Clematis ligusticifolia Doris K. Kildale 1927-7-3 3643 Humboldt Willow Creek Flat. 152 Comment
  BLMAR187  Clinopodium douglasii Donald Hazlett 1994-6-7 187 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CAS-BOT-BC499336  Clintonia andrewsiana M. S. Jussel 1931-5-2 s. n. Humboldt 20 miles N. of Garberville Comment
  JEPS61594  Clintonia andrewsiana W. L. Jepson 1932-7-29 16444 Humboldt Van Duzen River, Grizzly Flat Van Duzen River; , Grizzly Flat Comment
  JEPS61597  Clintonia andrewsiana Lincoln Constance 1934-6-3 810 Humboldt 1 mi n of Dyerville (road from High Rock (on Redwood Hwy) to Horse Prairie, South Fork Eel River); Bull Creek Region, South Fork Eel River Comment
  SEINET12047065  Clintonia andrewsiana Unknown 1972-1 s.n. Humboldt Humboldt State University Forest, W of campus with city limits of Arcata 198 Comment
  SEINET12047068  Clintonia andrewsiana F. H. Utech, Utech, C. L. 1972-1 72 -609 Humboldt Humboldt Redwoods State Park, Bull Creek Flats area 213 Comment
  UCR139132  Coincya monensis Jim Belsher 1997-2-13 01 Humboldt Lot ESE of the Manila Community Services District sewage pump station 6 Comment
  HSC70392  Collinsia grandiflora M. A. Baker 1980-6-8 1908 Humboldt Near Buck Flat. 1554 Comment
  JEPS26342  Collinsia grandiflora Joseph P. Tracy Jan 1917 4777 Humboldt Eureka Comment
  JEPS23541  Collinsia grandiflora Peter H. Raven with R. Snow 1958-7-20 13633 Humboldt grassy bald 2.8 mi s junction of Titlow Hill and Friday Ridge roads (near Grouse Mountain) Comment
  JEPS5816  Collinsia linearis W. L. Jepson Jul 16 1902-Jul 23 1902 2049 Humboldt Trinity Summit 2133 Comment
  UC582463  Collinsia parviflora Joseph P. Tracy Jul 16 1930-Jul 19 1930 8959 Humboldt near McKay Camp (Northern Coast Ranges, South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC176057  Collinsia rattanii Joseph P. Tracy 1913-6-17 4190 Humboldt Northern Coast Ranges, Buck Mountain near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  HSC41279  Collinsia rattanii Brad Klipfel 1974-6-25 437 Humboldt Horse Mtn., SE of the towers Comment
  UC203965  Collinsia rattanii Joseph P. Tracy 1918-5-26 4945 Humboldt lower slopes of Grouse Mountain towards Redwood Creek; Northern Coast Ranges, Grouse Mountain 762 Comment
  HSC56166  Collomia grandiflora G. L. Clifton, Griswold 1979-8-1 12053 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC56331  Collomia grandiflora Overton, Butler 1979-8-2 12698 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC74308  Collomia grandiflora M. A. Baker 1980-7-23 3174 Humboldt Near Orleans Mtn. 1859 Comment
  JEPS71016  Collomia grandiflora Lincoln Constance 1934-6-12 863 Humboldt n bank of river <at> Bull Cr. road; South Fork Eel River, Bull Creek Region, Dyerville Comment
  SBBG29130  Collomia heterophylla H. E. Parks -May-1933 1152 Humboldt Spruce Cove, Trinidad 76 Comment
  POM278763  Collomia heterophylla Lyman Benson 1928-7-12 475 Humboldt Weott Ranger Station; Mt.Range: Seaward N Coast; Watershed: South Fork Eel River. 61 Comment
  HSC74377  Collomia tracyi M. A. Baker 1980-6-28 2492 Humboldt Near Mad River Buttes 1445 Comment
  UC23379  Collomia tracyi Harley P. Chandler June 1901 1475 Humboldt Klamath River North Coast Ranges 426 Comment
  UC1197343  Conioselinum pacificum Joseph P. Tracy 1914-7-12 4579 Humboldt near Indianola; Northern Coast Region, Humboldt Bay Region 0 Comment
  HSC38101  Coptis laciniata Thomas W. Nelson, James Nelson 1976-5-30 2620 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC709462  Coptis laciniata Joseph P. Tracy 1941-4-8 16856 Humboldt Willow Creek Canyon, along Trinity Highway Willow Creek Canyon; , Trinity Highway 762 Comment
  HSC27568  Corallorhiza mertensiana J. D. Ackerman, A. Montalvo 1973-7-4 95 Humboldt Grogan Hole Rd, 18 mi. E of Hoopa Comment
  JEPS8449  Corallorhiza mertensiana Rimo Bacigalupi with J. P. Tracy, L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3420 Humboldt Snow Camp Bald Mountain ridge (edge of meadow, ridge between Mad River and Redwood Creek) 1432 Comment
  BLMAR311  Cordylanthus maritimus subsp. palustris Jennifer Anthony-Wheeler 2002-7-1 311 Humboldt South Spit 6 Comment
  JEPS6035  Cordylanthus maritimus subsp. palustris Joseph P. Tracy 1933-8-22 12991 Humboldt in salt marsh n of Eel River 3 Comment
  POM312521  Cordylanthus maritimus subsp. palustris Malcolm A. Nobs, S. Galen Smith 1949-8-3 1200 Humboldt 2 miles north of Eureka, bordering Humboldt Bay. Comment
  OBI9572  Cordylanthus tenuis subsp. viscidus Carl B. Wolf 1937-8-13 9225 Humboldt North Coast Range, 8 mi E of Hoopa Valley on new road towards Trinity summit Comment
  HSC96783  Cordyline australis Gordon Leppig 2004-6-8 2165 Humboldt Eureka, abandoned railroad tracks at Second St. and Commercial Ave. 2 Comment
  CAS-BOT-BC101144  Corethrogyne filaginifolia Joseph P. Tracy 1934-7-21 13474 Humboldt Near Samoa, on Humboldt Bay 6 Comment
  CAS-BOT-BC101151  Corethrogyne filaginifolia A. A. Heller 1924-7-23 13874 Humboldt along the highway at the mouth of Little River near Trinidad Comment
  HSC75232  Corethrogyne filaginifolia D. M. Gordon 1982-9-20 Humboldt End of country road (Lanphere Rd.)on Hunt property. Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata Comment
  JEPS41846  Corethrogyne filaginifolia W. L. Jepson 1936-8-17 17931 Humboldt Arcata Comment
  CAS-BOT-BC32935  Corethrogyne filaginifolia var. californica Henry Nicholas Bolander 1867-6-1 s.n. Humboldt On the coast at Shelter Cove and at Fort Bragg Comment
  BLMAR363  Cornus glabrata Clara Sander 2003-5-29 363 Humboldt Headwaters Forest Reserve, Floating island pond 451 Comment
  CAS-BOT-BC209755  Cornus glabrata L. R. Abrams 1918-6-16 7162 Humboldt Willow Creek Comment
  UC183574  Cornus glabrata Joseph P. Tracy 1913-6-21 4251 Humboldt Van Duzen R. just below Low Gap; Northern Coast Ranges, Van Duzen R. 762 Comment
  CAS-BOT-BC212007  Cornus nuttallii John McLaren 1920-9-1 s.n. Humboldt Unspecified Comment
  HSC65074  Cornus nuttallii J. P. Smith, Steve Selva 1970-6-14 3853 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC100454  Cornus pubescens Carl C. Marshall Jun 1886 322 Humboldt Mad River. Comment
  HSC58084  Cornus sericea subsp. occidentalis G. L. Clifton, Griswold 1979-8-1 11989 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  UC1196908  Cornus sericea subsp. sericea Joseph P. Tracy 1930-7-25 8882 Humboldt Trinity R. Valley at Willow Creek; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  UC668295  Cornus sericea subsp. sericea Joseph P. Tracy 1935-7-25 14230 1/2 Humboldt near Corral Prairie (Trinity Summit); Trinity Summit 1584 Comment
  UC774995  Cornus sericea subsp. sericea Carl B. Wolf 1937-8-13 9251 Humboldt 11 mi. e. Hoopa Valley (on new rd. towards Trinity Summit); North Coast Range 1524 Comment
  LA97947  Cornus sessilis Jane Turner; Francis M. Ball 1962-7-10 SK&F- 1144 Humboldt East Fork Willow Creek Forest Camp, Six Rivers National Forest, highway 299 ca. 5 mi. W of Willow Creek 457 Comment
  UC1167522  Cornus sessilis J. A. Delapp 1959-9-2 51 Humboldt 6 3/4 mi. n.-n.e. Schoolhouse Peak (near Big Prairie, V-Plot #81, <3N-95>); Quad. 11C-1 685 Comment
  UC1222290  Corylus californica Joseph P. Tracy 1950-7-31 19226 Humboldt about 1 mi N of Friday's Camp (where road crosses side of Friday Ridge) Comment
  CAS-BOT-BC180302  Corylus cornuta subsp. californica Joseph P. Tracy 1931-8-16 9611 Humboldt near Briceland 152 Comment
  HSC58193  Corylus cornuta subsp. californica G. L. Clifton, Griswold 1979-8-2 12290 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC104408  Corylus cornuta subsp. californica Adam N. Canter 2017-4-1 5 Humboldt Eureka, Fort Humboldt State Historic Park, west-facing bluffs along east side of Hwy. 101 Comment
  POM270388  Corylus cornuta var. californica Lyman Benson 1927-7-12 621 Humboldt Weott Ranger Station; Mt. Range: Seaward N Coast; River: South Fork Eel. 61 Comment
  RSA46863  Corylus cornuta var. californica Doris K. Kildale 1927-7-10 3734 Humboldt Gans Prairie, Bald Hills. Comment
  SEINET11859878  Cotula australis J. P. Tracy 1943-4-10 17414 Humboldt Eureka Comment
  UC485352  Cotula coronopifolia Joseph P. Tracy 1912-7-21 3775 Humboldt Alton; Northern Coast Region 30 Comment
  CAS-BOT-BC427575  Crassula aquatica Joseph P. Tracy 1935-5-30 13919 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  POM301287  Crataegus suksdorfii Joseph P. Tracy 1948-9-12 18205 Humboldt Box Camp Meadow, Trinity summit. 1463 Comment
  HSC57662  Crepis acuminata G. L. Clifton, Griswold 1979-7-25 10838 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  CAS-BOT-BC291478  Crepis capillaris F. J. Kirby 1958-7-1 1211 Humboldt West of Bridgeville 457 Comment
  RSA32733  Crepis capillaris A. A. Heller 1923-7-9 13777 Humboldt Near Blue Lake, 5 miles from Arcata. Comment
  HSC62776  Crocus speciosus M. Dean Griswold Jr. 1979-4-28 34 Humboldt W side of old Hwy. 101 Comment
  UC1103234  Crypsis vaginiflora Joseph P. Tracy 1931-9-7 9668 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC102928  Cryptantha M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 900 Humboldt Patterson Meadows 1566 Comment
  HSC58122  Cryptantha affinis G. L. Clifton, Griswold 1979-8-1 12093 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  UC1222276  Cryptantha flaccida Joseph P. Tracy 1950-6-15 18810 Humboldt n of Harris (Fort Seward Ranch); Mail Ridge Comment
  HSC33754  Cryptantha leiocarpa A. Montalvo 1975-5-24 284 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  SEINET12280860  Cryptantha milobakeri J. P. Tracy, Harris, S. K. 1942-1 17221 Humboldt E side of Hoopa Valley, hillside Comment
  UC1076384  Cupressus lawsoniana H. L. Mason 1932-7-21 7111 Humboldt on road Arcata to Weaverville (e slope of Southfork Mts.); Southfork Mts. Comment
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Jul 25 2018
  HSC104294  Cuscuta occidentalis Samantha E. Andres 2016-5-30 15 Humboldt Dry Lagoon Coastal Trail 5 Comment
  HSC89900  Cuscuta pacifica var. pacifica Leonel Arguello 1989-9-9 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata Comment
  POM318827  Cuscuta salina Patricia Wilder 1968-8-21 4416 a Humboldt Northern Coastal arm of Humboldt Bay, NW of Samoa, on E side of train tracks. 3 Comment
  JEPS14218  Cymopterus terebinthinus var. californicus Joseph P. Tracy 1929-6-3 8600 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UCD60076  Cynodon dactylon Joseph P. Tracy 1940-10-17 16763 Humboldt South Fork Station. 60 Comment
  UC1222262  Cynoglossum grande Joseph P. Tracy 1950-4-20 18617 Humboldt 2 mi. w. Dinsmore's (n.w. slope of Buck Mt.); Buck Mt. Comment
  CDA1946  Cynosurus cristatus E. C. Whitney 1959-9-16 Humboldt J. Zanone, Petrolia. 0 Comment
  SEINET200939 Image available Cynosurus echinatus Joseph P. Tracy 1947-6-8 17708 Humboldt Carlotta 5 miles east of town by old Strong's District School House [Coordinates estimated along highway] 61 Comment
  UCD141076  Cyperus eragrostis Gordon Leppig 1998-6-26 859 Humboldt McKinleyville, Hammond Trail, 100 m south of Knox Cove. 18 Comment
  HSC45552  Cyperus eragrostis J. P. Smith 1971-10-9 4990 Humboldt Mad River above the Fish Hatchery. Comment
  HSC96372  Cyperus parishii Gordon Leppig 2004-9-6 2197 Humboldt E bank of Trinity River, across river from the Loncar Summer Estate, 3.5 km N of Willow Creek 120 Comment
  HSC98728  Cystopteris fragilis Cara Witte 2007-7-20 563 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1460 Comment
  POM208983  Cystopteris fragilis Lincoln Constance 1934-6-2 781 Humboldt The mouth of Bull Creek, Humboldt Redwood Park 46 Comment
  CSUSB1619  Cytisus monspessulanus Keith Thompson 1972-3-27 Humboldt Maple Cr. 853 Comment
  SEINET8477238  Cytisus scoparius D. Taylor 2011-5-4 21114 Humboldt Alderpoint Road in the vicinity of snowline fox farm (Larabee Valley 7 1/2 USGA quadrangle placename), vicinity of the road crossing of Knack Creek 341 Comment
  CAS-BOT-BC189762  Dactylis glomerata Doris K. Kildale 1927-6-26 3591 Humboldt Patrick's Point. Comment
  CAS-BOT-BC189740  Danthonia californica Joseph P. Tracy 1928-6-24 8463 Humboldt Northern Coast Ranges. Valley of South Yager Creek. 762 Comment
  HSC1967  Danthonia californica William J. Ferlatte, B. D. Rogers 1966-6-15 2108 Humboldt Larabee Valley 762 Comment
  UC1541540  Danthonia unispicata J. P. Tracy, H. E. Parks 1934-6-14 11028 Humboldt Horse Mountain 1371 Comment
  JEPS12211  Datura stramonium W. L. Jepson 1932-7-28 16436 Humboldt Dyerville 88 Comment
  JEPS12215  Datura stramonium Joseph P. Tracy 1916-9-5 4762 Humboldt 4 mi above mouth South Fork of Eel River; Northern Coast Ranges, South Fork Eel River 60 Comment
  RSA421918  Datura stramonium M. B. Dunkle 1936-8-22 4855 Humboldt Williams Grove, Eel River. 213 Comment
  UC154247  Daucus pusillus Joseph P. Tracy July, 1908 2795 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers, Humboldt & Trinity Co.'s); Northern Coast Ranges, Humboldt & Trinity Co.'s 914 Comment
  UC642294  Daucus pusillus Joseph P. Tracy 1936-6-8 14870 Humboldt bluffs facing ocean Trinidad 3 Comment
  HSC94008  Delairea odorata Gordon Leppig 2000-2-15 1284 Humboldt School Rd. 1/2 mi. W of Central Ave. 30 Comment
  SEINET11836589  Delairea odorata J. P. Tracy 1942-1 17054 Humboldt near Ferndale along Russ Creek Comment
  UC467718  Delphinium decorum subsp. tracyi Joseph Burtt Davy and Walter C. Blasdale 1899-6-29 5802 B Humboldt Trinity Summit Comment
  HSC92103  Delphinium decorum subsp. tracyi S. Morrissette, J. Williams, K. Kopper 1994-5-6 50 Humboldt 0.4 mi. S of Hwy. 299 on Titlow Rd. 854 Comment
  RSA79370  Delphinium decorum subsp. tracyi E. K. Balls, Lee W. Lenz 1952-5-12 17196 Humboldt 11.2 miles E along Hwy 36 from Bridgeville to Cobbs Comment
  UC183703  Delphinium decorum subsp. tracyi Joseph P. Tracy 1913-6-17 4156 Humboldt streamlet near summit Northern Coast Ranges, Buck Mountain 1219 Comment
  CAS-BOT-BC9961  Delphinium nudicaule Doris K. Kildale 1926-3-21 1582 Humboldt Kneeland Prairie 762 Comment
  HSC98907  Delphinium nudicaule Cara Witte 2007-5-23 106 Humboldt Near Grouse Mtn. Along 4N32. Approximately 0.5 mi. S of intersection with 5N04 and 4N32E. 1398 Comment
  HSC48946  Delphinium nudicaule M. A. Baker 1979-5-1 700 Humboldt Along old bed of Bluff Creek Comment
  UC249645  Delphinium nuttallianum Joseph P. Tracy 1922-4-30 6029 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC63284  Delphinium nuttallianum M. A. Baker 1979-6-27 933 Humboldt Head of Oregon Creek Comment
  CAS-BOT-BC121959  Delphinium trolliifolium Doris K. Kildale 1927-3-26 3089 Humboldt Alton Hill 45 Comment
  UC160931  Delphinium trolliifolium Joseph P. Tracy 1908-6 2713 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  RSA75637  Delphinium trolliifolium Albert M. Vollmer, L. Beane 1951-6-6 106 Humboldt On road between Orick and Weitchpec. Comment
  UC1196341  Delphinium trolliifolium Joseph P. Tracy 1921-6-19 5831 Humboldt Berry Mt. Northern Coast Ranges 914 Comment
  RSA18060  Deschampsia beringensis C. B. Wolf 1927-8-22 794 Humboldt Big Lagoon Comment
  HSC27023  Deschampsia cespitosa subsp. holciformis Brad W. Klipfel 1973-8-17 274 Humboldt Big Lagoon Park, at the Sphagnum bog. Comment
  HSC9593  Deschampsia danthonioides L. M. Malloy 1965-5-20 27 Humboldt 4 mi. from Arcata on Fickle Hill Rd. Comment
  CAS-BOT-BC201773  Deschampsia elongata Doris K. Kildale 1927-7-22 3825 Humboldt Lassecks Peaks near Corral Camp 1661 Comment
  HSC98585  Deschampsia elongata Cara Witte 2008-7-30 964 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1/2 mile from intersection with National Forest 1. 1589 Comment
  UC1196302  Dicentra formosa Joseph P. Tracy 1947-8-24 17914 Humboldt near Box Camp (Trinity Summit); Trinity Summit 1524 Comment
  HSC62875  Dicentra formosa J. M. DiTomaso 1979-4-21 901 Humboldt On Stagecoach Rd. at College Cove parking lot, Trinidad Comment
  HSC79505  Dicentra formosa Kenneth Clark 1980-3-24 541 Humboldt Dead Man's Gulch, Shelter Cove 69 Comment
  CAS-BOT-BC402404  Dicentra formosa subsp. formosa Doris Kildale Gillespie 1931-6-7 10657 Humboldt South Fork Mt., Blake Lookout Comment
  CAS-BOT-BC209193  Dichanthelium acuminatum subsp. acuminatum Joseph P. Tracy 1931-5-17 9427 Humboldt Along river, Willow Creek, Trinity River Valley. 152 Comment
  CAS-BOT-BC253636  Dichanthelium acuminatum subsp. acuminatum R. Spellenberg 1966-9-8 1630 Humboldt Bank of S Fork Eel River at Highway 101, 5 miles S of Garberville Comment
  SEINET200695  Dichelostemma X venustum Joseph P. Tracy 1923-7-4 6524 Humboldt Valley of South Yager Creek 762 Comment
  UC1198170  Dichelostemma capitatum Joseph P. Tracy 1933-6-18 12607 Humboldt e of Redwood Creek (on Trinity Highway); Berry's Mt. 762 Comment
  RSA0031358  Dichelostemma capitatum subsp. capitatum Hutchinson 1927-05 s.n. Humboldt Unspecified. Comment
  RSA755796  Dichelostemma congestum Barbara Ertter, Thomas J. Delendick 1987-5-16 6919 Humboldt Vista Point just west of Berry Summit on Highway 299. 915 Comment
  SD211495  Dichelostemma congestum Barbara Ertter, Thomas J. Delendick 1987-5-16 6919 Humboldt Vista Point just West of Berry Summit on Highway 299 914 Comment
  HSC43845  Dichelostemma ida-maia Maralyn O'Meara 1974-7-17 554 Humboldt Kneeland Comment
  UC1133927  Dichelostemma ida-maia A. E. Wieslander 1931-5-15 191 Humboldt Hoopa Indian Reservation Hoopa Quad. Comment
Read comments
May 14 2010
  HSC44728  Dichelostemma ida-maia Maralyn O'Meara 1972-6-8 79 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  CAS-BOT-BC150353  Diplacus aurantiacus Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  UCR179281  Disporum smithii R. G. Swinney 1968-3-28 234 Humboldt East of Humboldt State College, Arcata 152 Comment
  HSC26352  Distichlis spicata T. O. Osborne 1970-4-5 68 Humboldt Flat-iron rock, 3/4 mi. NW of Trinidad Lighthouse. Comment
  UCR32182  Distichlis spicata David J. Keil 1983-7-1 17286 Humboldt Pacific Coast, c. 5 mi. west of Petrolia along Mattole Road 225 Comment
  UC1198617  Dodecatheon alpinum Joseph P. Tracy 1933-7-16 12782 Humboldt McKay Camp South Fork Mountain, McKay Camp. Comment
  UC562749  Dodecatheon alpinum Joseph P. Tracy 1932-7-14 10565 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  SEINET201059 Image available Dodecatheon hendersonii Joseph P. Tracy 1927-5-15 8061 Humboldt Hoopa Mountain; near summit on road west from Hoopa to Bair's. 1067 Comment
  UC1198621  Dodecatheon hendersonii Joseph P. Tracy 1932-4-23 9828 Humboldt Miranda Northern Coast Ranges, South Fork of the Eel River (South Fork Eel River) 121 Comment
  HSC55019  Dodecatheon jeffreyi Overton, Butler 1979-7-31 11426 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  JEPS14697  Dodecatheon jeffreyi Joseph P. Tracy 1932-7-17 10669 Humboldt ridges e Corral Prairie (Trinity Summit); , e of Corral Prairie 1828 Comment
  JEPS14701  Dodecatheon jeffreyi Joseph P. Tracy 1927-8-22 8340 Humboldt near High Prairie (Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  UC1199496  Downingia elegans Joseph P. Tracy 1928-6-24 8475 Humboldt between Middle Yager Creek and North Yager Creek (East Ranch) 762 Comment
  UC28972  Downingia elegans Chesnut and Drew Aug 1888 Humboldt Comment
  POM47623  Downingia yina J. B. Feudge 1923-7-29 108 Humboldt Rohnerville. 15 Comment
  RSA20854  Downingia yina C. B. Wolf 1937-6-18 8894 Humboldt 1/2 mile S of Fortuna. 15 Comment
  SEINET6425013 Image available Drosera rotundifolia Mrs. Alma Bonstell 1912-1 Humboldt Christmas Prairie 914 Comment
  HSC18764  Drymocallis glandulosa J. E. Lankila 1962-5-6 10 Humboldt West bank of Eel River across form Shively about 500 ft. from Bear Creek Comment
  CAS-BOT-BC159617  Drymocallis glandulosa var. glandulosa Joseph P. Tracy 1935-5-25 13899 Humboldt Dobbyn Creek 152 Comment
  HSC32345  Drymocallis rhomboidea D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5638 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  CAS-BOT-BC70872  Dryopteris arguta Doris K. Kildale 1928-12-30 6884 Humboldt Phillipsville Comment
  CAS-BOT-BC70875  Dryopteris arguta Ira L. Wiggins 1957-6-21 14140 Humboldt E side of road, 1 mi. S of Garberville Comment
  UCSB29333  Dryopteris arguta Phelps, M. 1972-3-20 Humboldt Near Somerville homestead, Elk Ridge. 609 Comment
  SEINET6424490 Image available Dryopteris dilatata Hicks, Carpenter 1977-7-12 Humboldt Prairie Creek State Park Comment
  HSC6461  Dudleya farinosa D. E. Anderson 1961-9-2 1773 Humboldt 3 mi. S of Cape Mendocino 3 Comment
  HSC26463  Dudleya farinosa T. O. Osborne 1970-7-18 21 Humboldt Sugarloaf Rock, Cape Mendocino Comment
  UC1198835  Dudleya farinosa Joseph P. Tracy 1930-7-21 8892 Humboldt 3 mi s point of the cape (sw slopes, fronting the ocean); Northern Coast Ranges, Cape Mendocino Comment
  UC1103628  Dulichium arundinaceum Joseph P. Tracy 1937-8-12 15623 Humboldt Bald Mountain, at Lake Prairie Lake Prairie; Bald Mountain, Lake Prairie 1066 Comment
  SEINET4558820  Dysphania botrys Thomas S. Elias, Barbara A. Elias 1987-1 10624 Humboldt Fernbridge, 0.5 miles S of Route 101; along west bank of Eel River; about 0.5 miles North of bridge Comment
  UC1056037  Echinochloa crus-galli H. E. Parks 24213 Humboldt Spruce Cove Comment
  UC183454  Echinochloa crus-galli Joseph P. Tracy 1900-11-1 973 Humboldt Eureka; Northern Coast Region 0 Comment
  NY242008  Elatine rubella A. Tiehm 1987-8-3 11474 Humboldt Pine Forest Range, Onion Creek Reservoir northwest of Blue Lake and Duffer Peak at the north end of the range. 2151.9 Comment
Read comments
Feb 25 2012
  UC666881  Eleocharis acicularis Joseph P. Tracy 1934-7-13 13393 Humboldt Dow's Prairie; dried bed of pond 60 Comment
  UC213006  Eleocharis bella Joseph P. Tracy 1919-5-31 5180 Humboldt shores of Lack Pond, near Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  JEPS64131  Eleocharis macrostachya W. L. Jepson 1921-8-7 9328 Humboldt Stone Lagoon Humboldt Coast Comment
  CAS-BOT-BC112845  Eleocharis macrostachya Malcom A. Nobs; Stanley Galen [S. Galen] Smith 1949-8-11 1346 Humboldt Marshes on eastern side of Big Lagoon. Comment
  HSC100212  Elymus caput-medusae J. P. Smith 2010-6-21 12945 Humboldt Along Friday Ridge Road, 0.4 mi. from junction with Hwy. 299 233 Comment
  HSC10946  Elymus elymoides var. elymoides J. P. Tracy 1933-7-25 12889 Humboldt Grouse Mtn. 1524 Comment
  HSC36619  Elymus glaucus J. D. Ackerman 1974-5-25 256 Humboldt Trinidad, Trinidad Beach S of Trinidad Head. Comment
  UCD61884  Elymus glaucus P. B. Kennedy 1923-8-2 Humboldt Near top of grade - Bluff Creek to Arcata. Comment
  CAS-BOT-BC203480  Elymus glaucus subsp. glaucus Doris K. Kildale 1929-6-24 7065 Humboldt Redwood Creek at Berry's Comment
  HSC97925  Elymus glaucus subsp. glaucus Cara Witte 2007-6-14 277 Humboldt Along National Forest 1. Near Kinsey Ridge. 2 miles north of intersection with 4N06. 1319 Comment
  HSC97930  Elymus glaucus subsp. glaucus Cara Witte 2007-6-19 295 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38 1220 Comment
  UC212884  Elymus glaucus subsp. virescens Joseph P. Tracy 1920-7-4 5340 Humboldt Little River Beach Northern Coast Ranges (rocky bluffs facing ocean) 15 Comment
  HSC9729  Elymus mollis subsp. mollis S. J. Moore 1965-5-3 2 Humboldt Gold Beach Comment
  HSC73480  Elymus multisetus Gail Newton 1980-7-11 1327 Humboldt Near Red Mtn. 1341 Comment
  HSC97932  Elymus multisetus Cara Witte 2007-6-14 271 Humboldt Along National Forest 1. Near Kinsey Ridge and cattle guard. 3 miles north of intersection with 4N09. 1393 Comment
  UC1103291  Elymus trachycaulus A. H. Murphy 1949-7-22 Humboldt Bear River Ridge; at intersection of Monument Road 457 Comment
  SEINET200978  Elymus virescens Joseph P. Tracy 1938-6-17 15959 Humboldt Cape Mendocino. South of point of Cape. 3 Comment
  UC1103295  Elytrigia repens Joseph P. Tracy 1925-9-13 7267 Humboldt Eel River North Coast Ranges (mouth, on river bank) 6 Comment
  UC562519  Epilobium campestre Joseph P. Tracy 1934-7-9 13349 Humboldt Dobbyn Creek 152 Comment
  UC668303  Epilobium campestre Joseph P. Tracy 1938-7-5 16004 Humboldt 5 mi e Carlotta; Strong's District School House 45 Comment
  POM225267  Epilobium ciliatum subsp. ciliatum P. A. Munz 1936-8-9 14330 Humboldt South fork of Eel River, 5 miles north of Humboldt-Mendocino County line, on Redwood Highway Comment
  HSC49645  Epilobium ciliatum subsp. glandulosum J. P. Smith, Steve Selva 1970-6-30 4138 Humboldt Comment
  UC549762  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1932-7-16 10633 Humboldt swamp near Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  HSC49828  Epilobium densiflorum Maralyn O'Meara 1974-7-11 529 Humboldt Kneeland, Barry Ridge Comment
  HSC103434  Epilobium densiflorum Thomas W. Nelson, Dick Brummitt, Barbara Ertter 2004-6-7 9279 Humboldt Along Kneeland Rd., 2 mi. from junction with Maple Creek Rd. 671 Comment
  HSC41820  Epilobium densiflorum Thomas W. Nelson, Jane P. Nelson 1977-8-6 3699 Humboldt Along old trail above Alder Springs 1616 Comment
  HSC102624  Epilobium hallianum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1611 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC505128  Epilobium minutum Joseph P. Tracy 1932-5-1 9843 Humboldt Alton North Coast Ranges, Van Duzen River 30 Comment
  BLMAR242  Epilobium septentrionale Jennifer Anthony-Wheeler 1997-7-18 242 Humboldt Larabee Butte 975 Comment
  RSA259564  Epipactis gigantea D. E. Anderson, J. P. Smith 1971-6-28 J- 1224 Humboldt Growing along Mad River ca. 2 mi. south of Blue Lake. Comment
  UC519322  Equisetum arvense Joseph P. Tracy 1933-6-7 12518 Humboldt on Van Duzen River Blue Slide; Northern Coast Ranges 91 Comment
  HSC866  Equisetum hyemale subsp. affine J. E. Lankila 1962-4-14 2 Humboldt W bank of Eel River, about 200 ft. N of Howe Creek Comment
  MACF019709  Equisetum telmateia subsp. braunii C. V. Morton 1955-8-23 27237 Humboldt Roadside near Province Creek State Park entrance Comment
  RSA44454  Eragrostis cilianensis Henry M. Pollard 1947-8-30 s.n. Humboldt Klamath River at Wilson Creek, near Orleans Comment
  UC526901  Eragrostis mexicana subsp. virescens Joseph P. Tracy 1931-9-7 9653 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  UCD63880  Eragrostis mexicana subsp. virescens Joseph P. Tracy 1950-9-22 19372 Humboldt Klamath River, near Slate Creek. Below Orleans 8 miles. 121 Comment
  HSC54009  Eremogone congesta var. suffrutescens Griswold, Butler 1979-7-10 7134 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  HSC57889  Eremogone congesta var. suffrutescens Overton, Butler 1979-7-31 11446 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  CAS-BOT-BC58929  Erica T. C. Fuller 1961-3-22 5938 Humboldt N. slope Humboldt Hill, Eureka Comment
  RSA639200  Erica lusitanica Gary D. Wallace 1988-4-11 2806 Humboldt South of Eureka: Just north of Loleta on Hwy 101, just south of Loleta Drive. 60 Comment
  HSC96452  Erigeron foliosus var. confinis Thomas W. Nelson, R. K. Brummitt, Barbara Ertter 2004-7-4 9283 Humboldt Along Bald Hills Rd. near French Camp, 1.5 mi. from Johnson Rd. and Elk Camp fire station. Comment
  JEPS11982  Erigeron foliosus var. confinis Rimo Bacigalupi with G. T. Robbins 1954-6-28 4653 Humboldt 4.6 mi s Weitchpec, Hoopa Valley Indian Reservation (between Hoopa Valley and Weitchpec, along highway, high above Trinity River); Trinity River 167 Comment
  HSC33818  Erigeron foliosus var. mendocinus Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-20 1917 Humboldt Growing on moist rock wall beside Hwy 36 W of Grizzley Creek Comment
  RSA39091  Erigeron foliosus var. mendocinus P. A. Munz 1948-8-15 12360 Humboldt 1 mile west of Van Duzen Redwood State Park Comment
  HSC67444  Erigeron glaucus J. P. Smith 1971-10-6 4955 Humboldt At the end of Murray Rd., McKinleyville Comment
  RSA607404  Erigeron glaucus R. S. Woglum 1938-8-29 2023 Humboldt North Coast: Samoa; Samoa Peninsula separating Humboldt Bay from the Pacific Ocean. . Comment
  HSC99348  Erigeron inornatus var. inornatus Thomas W. Nelson, B. Reinhardt 1975-7-30 2110 Humboldt Whiting Spring Comment
  UC87824  Erigeron inornatus var. inornatus W. W. Price 1890-6-5 Humboldt Comment
  HSC104433  Erigeron maniopotamicus Bianca Hayashi 2013-6-11 Humboldt Twin Lakes area, north of Board Camp Mountain 1280 Comment
  SDSU3939  Erigeron philadelphicus D. F. Howe 1962-5-21 3297 Humboldt 16 miles north of Garberville on #101. 61 Comment
  JEPS57404  Erigeron philadelphicus var. philadelphicus L. R. Heckard with T. I. Chuang 1968-7-4 1980 Humboldt n end Big Lagoon Comment
  HSC100373  Erigeron robustior D. Decker 2010-7-28 Humboldt Dinsmore, off 1N08 on Buck Mtn. 1353 Comment
  UC906676  Eriodictyon californicum Joseph P. Tracy 1947-7-5 17795 Humboldt near Mud Springs Trinity Summit (Trinity Summit); , near Mud Springs 1371 Comment
  JEPS95019  Eriogonum latifolium Vernon Oswald and Lowell Ahart 1997-9-4 8853 Humboldt 1.1 mi s of Highway 255 (North Spit of Humboldt Bay, w side of New Navy Base Road); North Spit of Humboldt Bay, New Navy Base Road 6 Comment
  LA206934  Eriogonum latifolium Carl Epling; Mrs. Epling 1935-8-15 sn Humboldt Arcata Spit Comment
  SBBG64031  Eriogonum latifolium H. E. Parks -Aug-1941 24198 Humboldt Little River Comment
  CAS-BOT-BC259164  Eriogonum latifolium Joseph P. Tracy 1938-7-15 16062 Humboldt Near bay shore at Bucksport, Eureka 6 Comment
  CAS-BOT-BC259183  Eriogonum latifolium W. R. Dudley 1899-6-1 s.n. Humboldt Peninsula opposite Eureka Comment
  HSC26917  Eriogonum latifolium Brad Klipfel 1973-7-30 220 Humboldt Samoa Rd. near Mad River Slough Comment
  RSA65140  Eriogonum latifolium F. W. Peirson 1923-7-11 3713 Humboldt 6 miles north of Eureka Comment
  SD38696  Eriogonum latifolium Charlotte M. Hoak 1931-7-14 2102 Humboldt Sand dunes above Eureka Comment
  SEINET195334  Eriogonum lobbii H. M. Pollard 1946-9-2 s.n. Humboldt Orleans Mtn 1524 Comment
  JEPS57407  Eriogonum luteolum L. R. Heckard with T. I. Chuang 1968-7-5 1987 Humboldt 4.3 mi n, on Mail Ridge road Harris road Comment
  RSA53819  Eriogonum luteolum H. M. Pollard 1945-8-25 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon. Comment
  UC672891  Eriogonum luteolum var. luteolum Joseph P. Tracy 1938-8-14 16120 Humboldt mountain slopes w mouth of South Fork Trinity River; South Fork Trinity River 304 Comment
  HSC74306  Eriogonum nudum M. A. Baker 1980-7-24 3204 Humboldt Near Orleans Mtn. 1625 Comment
  UC1198137  Eriogonum nudum var. nudum Joseph P. Tracy 1917-9-2 4844 Humboldt Grouse Mountain Nothern Coast Ranges, Grouse Mountain 1524 Comment
  RSA44500  Eriogonum nudum var. nudum H. M. Pollard 1947-8-22 s.n. Humboldt Klamath River bed near Fontana's Fishing Lodge, Orleans region Comment
  CAS-BOT-BC261729  Eriogonum nudum var. oblongifolium Alice Eastwood 1923-8-16 12328 Humboldt Carlotta Comment
  UC176685  Eriogonum nudum var. oblongifolium Joseph P. Tracy 1912-7-21 3761 Humboldt Alton Norther Coast Ranges, Alton 30 Comment
  UC370871  Eriogonum nudum var. oblongifolium Joseph P. Tracy 1918-7-6 5044 Humboldt near Humboldt-Mendocino County Line (South Fork of Eel River); Northern Coast Ranges, South Fork of Eel River 152 Comment
  CAS-BOT-BC269867  Eriogonum nudum var. pubiflorum Henry M. Pollard 1948-7-26 s.n. Humboldt Near mouth of Camp Creek - near Orleans Comment
  HSC54720  Eriogonum umbellatum Overton, Butler 1979-7-26 10095 Humboldt Near Cold Spring, close to the town of Willow Creek 1417 Comment
  JEPS56193  Eriogonum umbellatum var. argus W. L. Jepson 1902-7-25 2119 Humboldt Trinity Summit Comment
  UC672897  Eriogonum umbellatum var. nelsoniorum Joseph P. Tracy 1933-7-25 12881 Humboldt Grouse Mountain 1524 Comment
  OBI10943  Eriogonum umbellatum var. polyanthum Carl B. Wolf 1937-8-13 9221 Humboldt North Coast Range, 8 mi E of Hoopa Valley on New road towards Trinity summit 1219 Comment
  UC303021  Eriophorum crinigerum Joseph P. Tracy 1926-6-20 7637 Humboldt Horse Mt. Northern Coast Ranges, Horse Mt. 1463 Comment
  HSC36636  Eriophyllum lanatum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1906 Humboldt End of road to Pine Mtn. Comment
  BLMAR181  Eriophyllum lanatum var. achilleoides Donald Hazlett 1994-6-7 181 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CAS-BOT-BC301008  Eriophyllum lanatum var. achilleoides Harold E. Parks; Joseph P. Tracy 1934-6-27 11063 Humboldt Grouse Mt. 1432 Comment
  CAS-BOT-BC301014  Eriophyllum lanatum var. achilleoides L. B. Kildale 1930-8-3 10347 Humboldt Chaparral Mt. at Bug Creek 914 Comment
  HSC97466  Eriophyllum lanatum var. achilleoides Cara Witte 2007-5-29 129 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  UC165189  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1908-6-7 2609 Humboldt bluffs on river at mouth of Maple Creek; Northern Coast Ranges, Mad River 152 Comment
  RSA92676  Eriophyllum lanatum var. arachnoideum F. W. Peirson 1926-7-12 7029 Humboldt West slope of Coast Range back of Orick. Comment
  POM265904  Eriophyllum lanatum var. lanceolatum R. C. Rollins, Lincoln Constance 1942-5-12 2890 Humboldt Klamath River 12 miles north of Weitchpee 122 Comment
  CAS-BOT-BC301924  Eriophyllum staechadifolium L. R. Abrams 1916-7-18 6080 Humboldt Arcata to Trinidad Comment
  HSC8499  Erodium cicutarium D. E. Anderson 1962-3-17 1935 Humboldt 4 mi. S of Lone Star Ranch Comment
  HSC8510  Erodium moschatum Francis Winter 1960-3-26 Humboldt Samoa Peninsula, 2 mi. N of Coast Guard Station Comment
  UC1199175  Erysimum capitatum Joseph P. Tracy 1922-5-29 6078 Humboldt head of South Yager Creek Northern Coast Ranges 762 Comment
  HSC85821  Erysimum capitatum David Munger, Tallchief Comet, Jeff Dunk 1987-5-11 101 Humboldt Titlow Hill Rd., 1 mi. from Hwy. 299 intersection Comment
  UC1199176  Erysimum menziesii Joseph P. Tracy 1901-4-14 1019 Humboldt sand dunes of ocean beach Northern Coast Region, Humboldt Bay Comment
  HSC103293  Erythronium californicum Michael G. Simpson, Michael Mesler, Michael Mayer 2008-5-27 3005 Humboldt Six Rivers National Forest; ~ 4.6 mi. south of Hwy. 299 along Titlow Hill Rd., southeast of dirt intersection to Horse Mtn.; ~ 0.6 mi. south of Horse Mtn. Radio Tower. 1438 Comment
  HSC44396  Erythronium californicum Brad Klipfel 1975-5-24 629 Humboldt Horse Mtn. Comment
  HSC74620  Erythronium californicum M. A. Baker 1980-5-17 1248 Humboldt Near Le Perron Peak 1066 Comment
  SEINET3991734  Erythronium californicum Unknown 1918-5-1 4897 Humboldt Kneeland Prairie 762 Comment
  UC666967  Erythronium californicum Joseph P. Tracy 1938-6-13 15896 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC504310  Erythronium californicum Michalski; Raum; Hopson 1987-4-1 87 Humboldt Larabee Buttes Comment
  UC666961  Erythronium grandiflorum Joseph P. Tracy 1933-7-11 12708 Humboldt Grouse Mountain 1524 Comment
  RSA261455  Erythronium oregonum Suzanne May 1967-4-15 24 Humboldt Kneeland Road, 7 miles north of Bridgeville 213 Comment
  UC201282  Erythronium revolutum Joseph P. Tracy 1918-5-1 4896 Humboldt Ashfield Butte Northern Coast Ranges 762 Comment
  CAS-BOT-BC403033  Eschscholzia californica L. R. Abrams 1916-7-11 6058 Humboldt Mouth of Grizzly Creek on Van Duzon [Duzen] River Comment
  RSA21096  Eschscholzia californica var. crocea Carl B. Wolf 1937-6-14 8824 Humboldt North Coast Range, Kneeland Prairie 823 Comment
  HSC58806  Eucephalus ledophyllus G. L. Clifton, Griswold 1979-7-31 11745 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  UC1222991 Image available Eucephalus tomentellus Joseph P. Tracy 1941-8-24 17043 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  CAS-BOT-BC310494  Euchiton sphaericus Joseph P. Tracy 1936-8-23 15162 Humboldt Carlotta 30 Comment
  HSC102197  Euonymus occidentalis var. occidentalis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1111 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  JEPS51876  Euphorbia crenulata Lincoln Constance 1934-5-24 646 Humboldt Bull Creek Region; South Fork Eel River 121 Comment
  HSC48607  Euphorbia helioscopia Mark Flippo 1978-4-8 7 Humboldt In McKinleyville, along Bella Vista Rd. Comment
  NY263154  Euphorbia occidentalis V. K. Chesnut 1888-7-23 Humboldt Hy-Am-Pum (spelling?) Comment
  UC1198978  Euphorbia spathulata Joseph P. Tracy 1935-5-12 13795 Humboldt Willow Creek; Trinity River Valley 152 Comment
  UC202856  Euthamia occidentalis Chesnut and Drew 1888-7-21 Humboldt South Fork Mt. Comment
  SEINET4206010  Fallopia convolvulus Chesnut, Drew 1888-7-25 s.n. Humboldt Grouse Creek Comment
  HSC40339  Festuca arundinacea Linda M. Barker 1976-6-1 1566 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC9819  Festuca arundinacea E. W. Styskel 1964-4-28 74 Humboldt End of Davis St. at edge of Eel River in Rio Dell. Comment
  SBBG53090  Festuca bromoides R. N. Philbrick 1976-6-25 11 Humboldt Capetown-Ferndale Rd, NW of Cape Mendocino, ca. 4 mi NW of Bear River at Capetown 457 Comment
  UC34071  Festuca californica J. P. Tracy 1901-6-23 1175 Humboldt immediate vicinity Eureka 0 Comment
  UC180494  Festuca idahoensis Joseph P. Tracy 1913-6-20 4239 Humboldt nw slope Buck Mountain (lower foothills); Northern Coast Ranges 762 Comment
  CAS-BOT-BC278808  Festuca occidentalis Victor Duran 1933-5-11 3410 Humboldt Van Duzen River, near Bridgeville Comment
  CAS-BOT-BC278814  Festuca occidentalis Alice Eastwood; John Thomas Howell 1937-6-22 4713 Humboldt Near Harris Comment
  HSC41382  Festuca occidentalis J. O. Sawyer 1970-6-27 2304 Humboldt Site 318. 1494 Comment
  HSC45025  Festuca occidentalis R. Sutherland 1978-4-24 7 Humboldt Kinsey Ridge above Oat Creek 396 Comment
  HSC71594  Festuca occidentalis M. A. Baker 1980-6-26 2404 Humboldt Near Sims Creek 610 Comment
  UC1103723  Festuca occidentalis Joseph P. Tracy 1937-7-25 15543 Humboldt head of Little Hors-Linto Creek Trinity Summit, Little Hors-Linto Cree 1371 Comment
  SEINET10559307  Festuca occidentalis Victor Duran 1933-5-11 Duran 3410 Humboldt Van Duzen River, near Bridgeville. Comment
  HSC9989  Festuca rubra R. H. Berg 1963-4-30 57 Humboldt 1 mi. N of Arcata, on Hwy. 101 Comment
  POM313227  Festuca rubra Malcolm A. Nobs, S. Galen Smith 1949-8-3 1171 Humboldt Around Field's Landing. Comment
  SEINET11683172  Festuca rubra K. S. Erdman 1970-1 4812 Humboldt Gold Bluff Beach about 3 mi NW of Berry Glen and US 101 (Redwood NP) Comment
  UCD66356  Festuca rubra subsp. pruinosa H. S. Yates 1936-6-16 5667 Humboldt 1 mile S.W. of Samoa. 6 Comment
  UCD66433  Festuca subulata R. Tofsrud 1947-7-1 198 Humboldt Between Alder Point and Zenia. Comment
  POM126172  Festuca subuliflora Joseph P. Tracy 1900-5-22 801 Humboldt Immediate vicinity of Eureka. 0 Comment
  UCD66488  Festuca subuliflora G. L. Stebbins Jr.; G. L. Church 1941-5-27 3109 Humboldt At Strong's Station, on Van Duzen River. Comment
  UCD66495  Festuca subuliflora Harley P. Chandler 1901-5-1 1184 Humboldt Humboldt Bay. 30 Comment
  CHSC23878  Fragaria chiloensis A. R. Morrison 1974-4-27 Humboldt Throughout understory along immediate coastal cliffs ca. 2 mi. n of Trinidad. Comment
  HSC47484  Fragaria chiloensis Sheila Logan 1978-4-7 1 Humboldt Samoa sand dunes, 1/4 mi. N of Coast Guard Station. Comment
  CAS-BOT-BC59964  Frangula purshiana W. R. Dudley 1899-6-19 s.n. Humboldt Scotia. Comment
  OBI36633  Frangula purshiana David J. Keil 1983-7-2 17306 Humboldt Ca. 10.5 mi E of jctn with US 101 along SR 299 Comment
  SBBG26939  Frangula purshiana subsp. purshiana H. E. and S. T. Parks -Jun-1937 24018 Humboldt Spruce Cove, Trinidad Comment
  SEINET200390  Frasera speciosa Joseph P. Tracy 10731 Humboldt Trinity Summit , Open places at Corral Prairie. 1585 Comment
  HSC16192  Fraxinus latifolia J. R. Lippincott 1967-7-16 14 Humboldt 1.0mi S of Blue Lake in West End Rd. Comment
  HSC89632  Fraxinus latifolia Anthony J. Desch, Bryon Cariss 1988-4-23 65 Humboldt 3.7 mi. N of Hwy. 299 on Stover Rd. 244 Comment
  RSA24070  Fraxinus latifolia Carl B. Wolf 1940-11-10 9784 Humboldt Along the Mattole River 3 miles below Upper Mattole P.O. at Miner s Ranch 152 Comment
  UC906695  Fraxinus latifolia Joseph P. Tracy 1941-3-26 16814 Humboldt opposite mouth of Willow Creek; Trinity River Valley, Lack Pond 152 Comment
  SEINET6694697 Image available Fraxinus oregona Joseph P. Tracy 1941-1 16814 Humboldt Lack pond; in Trinity River Valley, opposite mouth of Willow Creek Comment
  HSC15541  Fritillaria affinis Elrid H. Spinas 1948-6-16 68 Humboldt Horse Mtn. Comment
  POM169380  Fritillaria affinis Joseph P. Tracy 1901-4-26 1045 Humboldt Immediate vicinity of Eureka; Humboldt Hill 0 Comment
  HSC43114  Fritillaria affinis Maralyn O'Meara 1974-5-14 362 Humboldt Beside Hwy. 36, 14.2 mi. E of Bridgeville Comment
  JEPS30796  Fritillaria purdyi Mrs. Barnwell 1923-4-28 Humboldt Northern Coast Ranges, Chalk Mountain Chalk Mountain; Northern Coast Ranges, Chalk Mountain 762 Comment
  UC1197629  Fritillaria purdyi Joseph P. Tracy 1926-5-15 7488 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  CHSC114069  Fumaria capreolata Robert R. Halse 2013-3-28 8767 Humboldt Weedy area by a Texaco station near 3543 Broadway St. (US Hwy Ave. Comment
  JEPS52710  Galium ambiguum subsp. ambiguum Lauramay T. Dempster and G. L. Stebbins Jr. 1963-7-9 3854 Humboldt along Hwy 36 about 1 mi w Mad River crossing (n-facing slope); Low Gap Sunday School 792 Comment
  UCD121553  Galium ambiguum subsp. siskiyouense Frederic Hrusa 1993-6-17 11229 Humboldt Red Mountain. 1200 Comment
  HSC37854  Galium aparine Peter Sorensen 1976-6-2 Humboldt Woodley Island, Humboldt Bay Comment
  HSC40954  Galium aparine Linda M. Barker 1976-6-14 1601 Humboldt 3 mi. W of Arcata Comment
  HSC45634  Galium aparine Diane L. Reed 1978-4-22 30 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  POM148009  Galium aparine J. B. Feudge 1923-7-29 727 Humboldt Rohnerville. 15 Comment
  HSC57329  Galium bolanderi Overton, Butler 1979-7-25 9822 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  CDA6673  Galium divaricatum T. C. Fuller 1958-6-17 603 -58 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  HSC45640  Galium muricatum Diane L. Reed 1978-5-7 57 Humboldt Fourmile Creek, 4 mi. up Friday Ridge Rd. from Hwy. 299 Comment
  UC416659  Galium parisiense Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5684 B Humboldt summit North Coast Ranges, Hoopa Mtn. Range (between Hoopa Val. and Redwood Creek) Comment
  HSC70963  Galium porrigens Gail Newton 1980-7-15 1585 Humboldt Near Sims Mtn. 1311 Comment
  HSC100643  Galium trifidum Carl C. Marshall Aug 1886 254 Humboldt Damp woods. Comment
  HSC58074  Galium triflorum G. L. Clifton, Griswold 1979-8-1 11968 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  HSC58153  Galium triflorum G. L. Clifton, Griswold 1979-8-2 12205 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  UC1199115  Gamochaeta coarctata Joseph P. Tracy 1927-7-17 8264 Humboldt Butler Valley 152 Comment
  HSC33077  Gamochaeta ustulata Thomas W. Nelson, Jim Ackerman 1974-5-14 1266 Humboldt Beside old Samoa-Crannell railroad bed adjacent to the Mad River Slough N of Emerson Mill Comment
  JEPS20474  Gamochaeta ustulata Joseph P. Tracy 1936-8-23 15163 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  HSC5689  Gamochaeta ustulata David Adams 1960-7-15 Humboldt Near Fort Humboldt monument, Eureka 15 Comment
  HSC56945  Garrya buxifolia Overton, Butler 1979-7-23 9435 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  UC1196891  Garrya buxifolia Joseph P. Tracy 1933-7-11 12676 Humboldt Horse Mountain 1402 Comment
  HSC9992  Gastridium phleoides True Hoyle 1967-7-9 27967 Humboldt 2 mi. NW from the junction of Fickle Hill and Butler Valley Rds. 457 Comment
  HSC73068  Gaultheria ovatifolia M. A. Baker 1980-6-16 1953 Humboldt Near Onion Mtn. 1280 Comment
  HSC7813  Gaultheria shallon D. B. Bader 1963-4-1 48 Humboldt Second of the Clam Beach lagoons, W of Hwy. 101, E bank of the lagoon Comment
  SBBG59965  Gaultheria shallon R. Hartwell 1938-8-3 105 Humboldt Bull Crk, Redwood Flat, Eel River Comment
  SD51255  Gaultheria shallon Darley F. Howe 1961-8-1 3106 Humboldt 6.0 miles north of Trinidad on Highway 101. Comment
  UC1120968  Gaultheria shallon A. E. Wieslander 1931-5-21 211 Humboldt on ridge near Kneeland Comment
  UC527560  Gaultheria shallon C. B. Wolf 1931-8-29 Humboldt near summit of Orick Hill, on road to Weitchpec Orick Hill 304 Comment
  HSC16391  Gayophytum diffusum J. P. Tracy 1933-8-30 13045 Humboldt Grouse Mtn. 1524 Comment
  HSC55073  Gayophytum diffusum subsp. parviflorum G. L. Clifton, Griswold 1979-7-31 11657 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC55224  Gayophytum diffusum subsp. parviflorum G. L. Clifton, Griswold 1979-8-2 12402 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  POM247153  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1933-8-30 13046 Humboldt North Coast Ranges: Grouse Mountain 1524 Comment
  HSC74457  Gayophytum heterozygum Gail Newton 1980-8-10 2013 Humboldt Near Blake Mtn. 1798 Comment
  UC20254  Gayophytum heterozygum Chesnut and Drew July 1888 Humboldt S. Fork Mt. Comment
  UC505126  Gayophytum humile Joseph P. Tracy Jul 16 1930-Jul 19 1930 8940 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC16406  Gayophytum ramosissimum J. P. Tracy 1933-7-26 12919 Humboldt Grouse Mtn. 1524 Comment
  UC153982  Gentiana affinis var. ovata J. P. Tracy 1904-8-7 2140 Humboldt immediate vicinity Eureka 0 Comment
  HSC96490  Gentiana sceptrum Gordon Leppig 1997-8-3 635 Humboldt Big Lagoon County Park, Big Lagoon Bog. 3 Comment
  RSA183533  Gentiana sceptrum D. E. Anderson 1963-9-6 2810 Humboldt Big Lagoon Sphagnum Bog Comment
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Feb 26 2014
  UC1197403  Geranium dissectum Joseph P. Tracy 1909-7-31 3043 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  JEPS61438  Geranium oreganum Milo S. Baker 1923-7-20 30 Humboldt Head of Yager Creek Comment
  HSC54667  Gilia capitata Overton, Butler 1979-7-25 9904 Humboldt Near Grouse Mtn., close to the town of Willow Creek 1646 Comment
  UC1222733  Gilia capitata subsp. capitata Joseph P. Tracy 1950-6-15 18789 Humboldt 7 mi n Harris (Mail Ridge); n of Harris, Mail Ridge Comment
  HSC100592  Gilia grandiflora Carl C. Marshall Jun 1886 314 Humboldt Vicinity of Hoopa. Comment
  CAS-BOT-BC225469  Gilia millefoliata Bolemanson 1907-5-15 s.n. Humboldt Samoa Comment
  CAS-BOT-BC123798  Gilia millefoliata var. maritima Harley Pierce Chandler 1901-5-1 1135 Humboldt North Coast Ranges, Humboldt Bay 3 Comment
  JEPS69508  Gilia sinistra subsp. sinistra Joseph P. Tracy 1926-6-27 7679 Humboldt Horse Mountain 1432 Comment
  HSC71724  Githopsis specularioides M. A. Baker 1980-6-26 2461 Humboldt Near Sims Creek 610 Comment
  UC1198625  Glaux maritima Joseph P. Tracy 1934-7-3 13303 Humboldt around Humboldt Bay (along Freshwater Slough); Northern Coast Region, Freshwater Slough 3 Comment
  UC162686  Glechoma hederacea Joseph P. Tracy 1911-7-7 3382 Humboldt 3 mi nw Willow Creek junction with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  SEINET12118385  Glehnia leiocarpa L. R. Abrams 1916-1 6140 Humboldt at Trinidad Comment
  CAS-BOT-BC218429  Glehnia littoralis subsp. leiocarpa A. A. Heller 1924-7-24 13882 Humboldt Dunes at Humboldt County camp 7 miles south of Trinidad Comment
  HSC70404  Glyceria X occidentalis M. A. Baker 1980-6-7 1836 Humboldt Near Ammon Creek. 732 Comment
  HSC26157  Glyceria elata J. P. Smith, Steve Selva 1970-6-30 4131 Humboldt Comment
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Jan 25 2012
  HSC96582  Glyceria elata Gordon Leppig, Tony LaBanca 2005-6-6 2247 Humboldt Pacific Lumber Co. land, Redwood House Rd., Hely Creek headwaters pond. 630 Comment
  UC526907  Glyceria fluitans Joseph P. Tracy 1933-7-20 12801 Humboldt Arcata Bottom; North Coast Ranges 15 Comment
  UC1145104  Glyceria grandis Joseph P. Tracy 1936-6-28 15024 Humboldt Lake Prairie; Bald Mountain 1066 Comment
  UC1103752  Glyceria striata Joseph P. Tracy 1926-5-22 7501 Humboldt Prairie Creek; Northern Coast Ranges 152 Comment
  RSA42036  Gnaphalium chilense H. C. Cantelow 1936-8-29 1566 Humboldt 1 mile off Riv. [High.?] S. Fork Eel River Bridge, 17 miles N of Garberville Comment
  CAS-BOT-BC302619  Gnaphalium palustre Joseph P. Tracy 1933-8-30 13043 Humboldt North Coast Ranges. Grouse Mountain 1524 Comment
  HSC57969  Gnaphalium palustre G. L. Clifton, Griswold 1979-7-31 11692 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC68038  Gnaphalium palustre J. P. Smith 1976-10-30 8995 Humboldt Mad River, E of Essex Lane exit. Comment
  JEPS20477  Gnaphalium palustre Joseph P. Tracy 1933-8-30 13043 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain (bed of dried up pond) 1524 Comment
  UCD132451  Gnaphalium palustre James Payne Smith Jr. 1976-10-30 8995 Humboldt Mad River, east of Essex Lane exit. Comment
  HSC100580  Godetia quadrivulnera Carl C. Marshall Jul 1886 81 Humboldt Hills 2,000 ft. and upwards. Comment
  HSC54227  Goodyera oblongifolia Griswold, Butler 1979-7-12 7293 Humboldt Near Lone Pine Ridge, close to the town of Willow Creek. 1478 Comment
  RSA381800  Goodyera oblongifolia Jane Turner, Francis M. Ball 1962-7-10 1141 Humboldt East Fork Willow Creek Forest Camp, Hwy 299 ca. 5 mi. W of Willow Creek in Six Rivers National Forest. 457 Comment
  UC14959  Goodyera oblongifolia Ethel Tracy 1900-7-26 908 Humboldt opposite Eureka (Ocean Beach at Samoa); Samoa, Ocean Beach Comment
  CAS-BOT-BC304763  Grindelia hirsutula C. L. Hitchcock; J. S. Martin 1939-7-14 5437 Humboldt At Shelter Cove Comment
  UC1192227  Grindelia hirsutula Malcolm A. Nobs and S. Galen Smith 1949-8-3 1179 Humboldt salt marshes around Fields Landing Fields Landing Comment
  UC1541451  Grindelia hirsutula H. E. and S. T. Parks 1930-9-14 773 Humboldt n shore Big Lagoon Comment
  SEINET11835894  Grindelia hirsutula var. davyi Unknown 1936-1 13195 Humboldt near Ukiah Comment
  HSC74429  Hackelia bella Gail Newton 1980-8-10 2059 Humboldt Near Blake Mtn. 1707 Comment
  UC475986  Hackelia bella Joseph P. Tracy July 1930 9023 Humboldt South Fork Mountain Comment
  UC1239635  Hackelia californica Joseph P. Tracy 1936-8-8 15126 Humboldt on Ridge 2 mi e of Groves Prairie; Trinity Summit 1524 Comment
  UC1239636  Hackelia californica Joseph P. Tracy 1919-9-18 5247 1/2 Humboldt Corral Prairie Trinity Summit; Northern Coast Ranges 1524 Comment
  UC667133  Hastingsia alba Joseph P. Tracy 1935-7-24 14195 Humboldt Trinity Summit near Ranger Station; Trinity Summit 1828 Comment
  HSC99503  Helenium bigelovii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 163 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  RSA12428  Helenium bigelovii C. B. Wolf 1934-7-2 5866 Humboldt At small lake at Snow Camp (Mtns E of Korbel) 1372 Comment
  SEINET5711017  Helenium bigelovii Lowell E. Urbatsch 1990-1 6798 Humboldt From Calif. 99 at Hawkins Bar (in Trinity County), turn onto the rd. to Denny and travel 1.7 miles down this road to a fork; take the left fork (not leading to Denny but to Waterman Ridge and Zeigler Point) and travel 6.7 miles down this road to another fork. Take the rt. fork (away from the rd. leading to Waterman Ridge and Willow Creek). On this road (FS 7 NO4) travel 1.5 miles to another fork; continue on 7NO4N (the left fork) for 7.4 miles. At this point, take 7N04N, the road to Groves Prairie. The collection site is about 50m to the right near the Groves Prairie Creek sign. The site is 17.9 miles from Hawkins Bar just beyond mile marker 9.; Groves Prairie Comment
  RSA93884  Helenium bolanderi F. W. Peirson 1923-7-11 3910 Humboldt 7 miles north of Arcata. Comment
  UC175986  Helenium bolanderi J. P. Tracy 1912-7-22 3792 Humboldt near Loleta 91 Comment
  JEPS35522  Helenium puberulum W. L. Jepson 1921-9-10 9458 Humboldt flat at Philipsville Comment
  JEPS35541  Helenium puberulum W. L. Jepson 1936-8-13 17892 Humboldt Philipsville S. Fk. Eel River Comment
  HSC6065  Helminthotheca echioides D. E. Anderson 1963-10-16 2884 Humboldt Jacoby Creek Rd. Comment
  HSC102615  Hemieva ranunculifolia M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1602 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC70841  Hemizonella minima M. A. Baker 1980-6-7 1788 Humboldt Near Brush Mtn. 1128 Comment
  UC1565811  Hemizonella minima R. Spellenberg 1990-7-9 10228 Humboldt on USFS Rd 1 20.5 mi s Calif. Hwy. 299 and Berry Summit (14 air mi sw of Burnt Ranch, extreme e edge of county); Pilot Ridge 1371 Comment
  UC180195  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1914-7-5 4570 Humboldt Bald Mountain 1066 Comment
  HSC55976  Heracleum maximum G. L. Clifton 1979-7-31 11369 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC1223123  Hesperevax acaulis var. robustior Joseph P. Tracy 1948-5-31 17983 Humboldt 1/2 mi ne Garberville 152 Comment
  UC275454  Hesperevax acaulis var. robustior Joseph P. Tracy 1925-5-17 6982 Humboldt near s fork Trinity River; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC34985  Hesperolinon micranthum Hy-Am Pum July 1888 Humboldt Comment
  UC169328  Heterocodon rariflorum Joseph P. Tracy 1908-6 2831 Humboldt nw slope Buck Mountain; Northern Coast Ranges 1219 Comment
  RSA47118  Heteromeles arbutifolia Doris K. Kildale 1926-6-13 s.n. Humboldt Bruceland Bridge Comment
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Jul 24 2020
  UC165075  Heterotheca oregona var. rudis Joseph P. Tracy 1908-6 2924 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC102136  Heuchera merriamii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1040 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC32931  Heuchera micrantha Thomas W. Nelson, James Nelson 1973-5-28 951 Humboldt McKeown Ranch N of Dinsmore Comment
  BLMAR317  Heuchera micrantha Jennifer Anthony-Wheeler 2002-8-9 317 Humboldt Headwaters Forest Reserve, growing in a pond with large floating logs 426 Comment
  SEINET207134  Heuchera parvifolia J. P. Tracy 1951-6-14 19416 Humboldt East side of Snow Camp Meadows Comment
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Jul 16 2018
  HSC81906  Heuchera rubescens Thomas W. Nelson 1979-7-11 4991 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC74180  Hieracium albiflorum M. A. Baker 1980-7-23 3162 Humboldt Near Orleans Mtn. 1859 Comment
  UC582417  Hieracium albiflorum Joseph P. Tracy 1929-7-4 8613 1/2 Humboldt French Camp Ridge 1066 Comment
  BLMAR738  Hieracium albiflorum Jennifer Wheeler 2015-5-12 738 Humboldt King range, Along Telegraph Ridge btwn Oat and Spanish 670 Comment
  CAS-BOT-BC312392  Hieracium albiflorum Doris K. Kildale 1925-8-17 1196 Humboldt Triity Summit 1828 Comment
  UC1223083  Hieracium bolanderi Joseph P. Tracy 1947-7-9 17849 Humboldt Horse Mountain 1432 Comment
  HSC57619  Hieracium greenei G. L. Clifton, Griswold 1979-7-25 10744 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  UC582411  Hieracium greenei Joseph P. Tracy 1935-7-30 14358 Humboldt Salmon Summit 1767 Comment
  UC1103738  Hierochloe occidentalis Joseph P. Tracy 1942-5-16 17348 Humboldt Garberville 152 Comment
  HSC59570  Hippuris vulgaris Rick Lundquist 1979-5-18 98 Humboldt Clam Beach Ponds 0 Comment
  SBBG88819  Hippuris vulgaris A. Keedy 1988-9-18 10 Humboldt Arcata Salt Water Project, Arcata Comment
  HSC6593  Hirschfeldia incana P. W. Shields 1955-9-29 Humboldt 0.5 mi. S of Fernbridge Comment
  HSC12345  Holcus lanatus Steve Dorei 1970-10-31 144 Humboldt Scotia bluff area, N side of railroad tracks. Comment
  HSC37255  Holcus lanatus Lon Hall 1975-6-19 391 Humboldt About 2 mi. N of Shelter Cove Rd. on Horse Mtn. Rd. 549 Comment
  HSC71745  Holcus lanatus M. A. Baker 1980-6-26 2429 Humboldt Near Sims Creek 610 Comment
  UCD84908  Holcus lanatus S. P. Lynch 1975-6-19 1364 Humboldt US 101 at jct. w/ Loleta Dr., ca. 31 miles N of Burlington Campground. Comment
  UC180502  Holcus mollis Joseph P. Tracy 1914-9-13 4626 Humboldt Eureka Northern Coast Region, Eureka 0 Comment
  CAS-BOT-BC149909  Holodiscus discolor C. C. Harris; S. K. Harris 1936-6-9 329 Humboldt Behind Mrs. Wilder's, Carlotta Comment
  HSC74742  Holodiscus discolor Gail Newton 1981-7-24 2295 Humboldt Near Chaparral Mtn. 1512 Comment
  UC1043493  Holodiscus discolor E. K. Balls 1954-5-25 19387 Humboldt 6.3 mi s of Ferndale (North Coast Range, Wild Cat Ridge); North Coast Range, Wild Cat Ridge Comment
  LA83708  Holodiscus discolor O. H. Kappler; 1946-7-24 1372 Humboldt Humboldt Bay, close to beach Comment
  UCSC000355  Holodiscus discolor H. L. Person 1932-6-25 s.n. Humboldt E. of Korbel Korbel - Eureka Comment
  HSC10165  Hordeum brachyantherum J. A. Waller 1965-5-2 33 Humboldt Open field Comment
  CAS-BOT-BC536626  Horkelia californica Milo S. Baker 1931-7-17 5409 Humboldt A few mile south of Eureka along Redwood Highway Comment
  SEINET11911570  Horkelia sericata H. P. Chandler 1901-1 1543 Humboldt Klamath River 427 Comment
  HSC73472  Horkelia tridentata var. flavescens Gail Newton 1980-7-14 1465 Humboldt Near Last Chance Ridge. 1219 Comment
  HSC96952  Horkelia tridentata var. flavescens Whitney Meier, Elizabeth Kimbrough 2007-6-11 3 Humboldt Cold Springs Camp 11.9 mi. S of Hwy. 299 on USFS Rd. NF 1 Comment
  HSC44356  Hosackia crassifolia Brad Klipfel 1974-7-23 464 Humboldt Horse Mtn. Comment
  UC642326  Hydrocotyle ranunculoides Joseph P. Tracy 1934-7-2 13288 Humboldt mouth of Little River 3 Comment
  HSC38628  Hydrophyllum tenuipes D. E. Anderson, J. P. Smith 1971-6-18 - 1100 Humboldt In narrow canyon of the N Fork of Mad River, along Hwy. 299, E of Blue Lake Comment
  UC213008  Hydrophyllum tenuipes Joseph P. Tracy 1920-5-18 5318 Humboldt Bull Creek Northern Coast Ranges (along Eel River from South Fork to Scotia) 60 Comment
  HSC58018  Hypericum anagalloides G. L. Clifton 1979-7-31 11820 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC1198404  Hypericum formosum var. scouleri Joseph P. Tracy 1920-7-25 5345 Humboldt Dows Prairie Northern Coast Ranges, Humboldt Bay, Dows Prairie 60 Comment
  HSC57046  Hypericum perforatum Overton, Butler 1979-7-24 9695 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC75374  Hypericum perforatum J. O. Sawyer, M. A. Ericksen 1980-7-7 3576 Humboldt Slopes along Aikens Creek, Adroni Research Area 457 Comment
  UC909470  Hypericum perforatum J. H. Thomas 1949-6-12 899 Humboldt ca. 1/2 mi. n. Orleans (near Klamath R.) Comment
  UCSB23845  Hypericum perforatum Keefe, Joseph 1967-7-8 Humboldt bank of Eel River; Miranda Turnoff; 12.4 miles north of Garberville on U.S. Highway 101 170 Comment
  HSC22968  Hypericum perforatum S. V. Thompson 1967-7-23 10 Humboldt Along Boulder Creek Comment
  CAS-BOT-BC401304  Hypericum scouleri Ira L. Wiggins 1932-7-18 5886 Humboldt Between Arcata and Bayside Comment
  CAS-BOT-BC312869  Hypochaeris L. R. Abrams 1916-7-11 6045 Humboldt Mouth of Grizzly Creek on Van Duzon [Duzen] River Comment
  HSC39801  Hypochaeris radicata Peter Sorensen 1976-6-11 Humboldt Woodley Island Comment
  CAS-BOT-BC123474  Iliamna latibracteata Doris K. Kildale 1926-7-5 2312 Humboldt Prairie Creek, near Davidson's. Comment
  CAS-BOT-BC206844  Iliamna latibracteata Joseph P. Tracy 1949-9-1 18535 Humboldt Willow Creek Canyon, along Trinity Highway 762 Comment
  RSA2927  Iliamna latibracteata Carl B. Wolf 1931-8-28 2367 Humboldt Redwood Hwy 3 miles north of Orick (Davison s Ranch on Prairie Creek) 61 Comment
  UC668130 Image available Iliamna latibracteata Joseph P. Tracy 1938-8-14 16104 Humboldt Willow Creek Canyon, along Trinity Highway. 762 Comment
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Feb 27 2012
  JEPS17242  Iris douglasiana Lincoln Constance 1934-5-31 763 Humboldt from w boundary of Park to Grasshopper Pk. rd.(Squaw Cr.) (Bull Creek flat, along Bull Creek, n side of creek); South Fork Eel River, Bull Creek Region Comment
  JEPS17356  Iris douglasiana W. L. Jepson 1902-6 1909 Humboldt Idolwild; South Fork of Eel River Comment
  RSA21085  Iris macrosiphon Carl B. Wolf 1937-6-19 8913 Humboldt North Coast Range, 7.2 mi. above Bridgeville on grade to Dinsmores. 457 Comment
  RSA120324  Iris tenax subsp. klamathensis S. Tillett 1956-7-6 618 Humboldt 11 miles from Orleans, on Bar Shanty Road 1159 Comment
  RSA136372  Iris tenax subsp. klamathensis Lee W. Lenz 1953-5-17 18317 Humboldt 1 mile below Somes Bar on Klamath River 180 Comment
  HSC13903  Iris tenuissima Francis Winter 1960-4-24 Humboldt 7 mi. W of Hoopa Indian Reservation, Bair Rd. 915 Comment
  RSA183615  Isatis tinctoria D. E. Anderson 1965-5-1 3569 Humboldt Slides along Hwy 96 and Klamath River about 3-4 miles E of Weitchpec. Comment
  UC1173727  Isatis tinctoria Joseph P. Tracy 1939-4-29 16239 Humboldt Klamath River at mouth of Slate Creek; Klamath River, Slate Creek 121 Comment
  UC906715  Isoetes nuttallii Joseph P. Tracy 1942-6-15 17138 Humboldt Miranda 121 Comment
  HSC96363  Isolepis setacea Gordon Leppig 1999-10-3 1257 Humboldt Big Lagoon Bog, Big Lagoon County Park 3 Comment
  UC637154  Jaumea carnosa Edward Lee 1934-8-17 1149 Humboldt 35 mi n Eureka (e shore of Lagoon); Big Lagoon 3 Comment
  CAS-BOT-BC110012  Juncus Henry M. Pollard 1956-10-8 s.n. Humboldt Along road above Ullathorne Riffle, ca. 3 miles southwest of Orleans. Comment
  SJSU10737  Juncus balticus subsp. ater H. T. Harvey 1977-7-7 616 Humboldt Eel R delta c. 4 mi NW of Ferndale Comment
  HSC36046  Juncus bolanderi Thomas W. Nelson 1975-9-24 2201 Humboldt Beside Indianola Rd., 0.5 mi. E of junction with Hwy. 101 Comment
  UC1601711  Juncus bolanderi State Survey June 1867 6584 Humboldt Comment
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Jul 31 2010
  CHSC10121  Juncus breweri J. W. Johnson 1961-8-17 Humboldt Arcata. In the vernal pond community of Hollow 10, W.M. Lanphere Farm. Samoa Peninsula. Comment
  UC1103056  Juncus covillei var. obtusatus J. P. Tracy 1900-9-9 948 Humboldt near Hydesville 60 Comment
  BLMAR659  Juncus effusus subsp. pacificus Andrew Maguire 2012-7-19 659 Humboldt Lacks Creek, Faulkner prairie 894 Comment
  HSC63875  Juncus ensifolius M. A. Baker 1979-6-29 961 Humboldt Hopkins Creek 750 Comment
  UC1103043  Juncus falcatus subsp. sitchensis Joseph P. Tracy 1925-10-18 7290 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  UC184194  Juncus hemiendytus var. hemiendytus Joseph P. Tracy 1913-6-17 4168 Humboldt near Buck Mountain summit; Northern Coast Ranges 1524 Comment
  HSC83036  Juncus lescurii A. L. Eicher 1986-5-12 Humboldt Bordering Humboldt Bay, off of Vance Ave., 0.3 mi. S of Samoa Blvd. 1 Comment
  HSC96370  Juncus lescurii Gordon Leppig 1999-10-3 1259 Humboldt Big Lagoon Bog, Big Lagoon County Park 3 Comment
  RSA368144  Juncus patens J. P. Smith, Steve Selva 1970-6-14 3822 Humboldt Along Calif. 96 at Whitmore Creek. 152 Comment
  SD192840  Juncus planifolius Peter F. Zika 2008-10-19 24229 Humboldt East side of Route 101, near Exit 728 for Trinidad Beach. 110 Comment
  CHSC105145  Juncus planifolius Peter F. Zika 2008-10-19 24229 Humboldt Common in damp ditches, E side of Route 101, near Exit 728 for Trinidad Beach 110 Comment
  HSC58135  Juniperus communis var. saxatilis Gilbert Muth 1979-8-1 12143 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UC1225905  Kalmia polifolia subsp. microphylla Joseph P. Tracy 1942-6-23 17262 Humboldt Trinity Summit, at Water Dog Lakes Water Dog Lakes; Trinity Summit, Water Dog Lakes 1889 Comment
  CAS-BOT-BC235881  Keckiella corymbosa Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  CAS-BOT-BC235892  Keckiella corymbosa Doris K. Kildale 1929-8-4 8779 Humboldt Mattole River at Union Mattole Comment
  JEPS11129  Keckiella corymbosa Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  RSA44300  Keckiella corymbosa H. M. Pollard 1946-8-10 s.n. Humboldt Klamath River flood plain near Wilson Creek. Comment
  RSA79773  Keckiella corymbosa F. W. Peirson 1926-7-13 7060 Humboldt Mad River, near Blue Lake. Comment
  UC582862  Keckiella corymbosa P. A. Munz 1936-8-9 14328 Humboldt 5 mi n Humboldt-Mendocino County line (south fork of Eel River); Eel River Comment
  NY790273  Keckiella corymbosa W. C. McCalla 1935-7-29 4253 Humboldt Open valley of Eel River Comment
  CDA2756  Kniphofia uvaria Gordon Leppig, Sylvia Leppig 2000-4-9 1287 Humboldt Arcata Marsh and Wildlife Refuge. Southeast corner of Klopp Lake dike, Arcata. Comment
  HSC95250  Kniphofia uvaria Gordon Leppig, Sylvia Leppig 2000-4-9 1287 Humboldt Humboldt Marsh and Wildlife Refuge, SE corner of Klopp Lake Dike 1 Comment
  UC552225  Lactuca biennis Joseph P. Tracy 1935-7-21 14118 Humboldt mouth Bremer Creek (near Willow Creek); Trinity River Valley 152 Comment
  CAS-BOT-BC340427  Lactuca saligna Joseph P. Tracy 1946-8-25 17650 Humboldt Eel River, Alton to Fortuna 15 Comment
  UC1051585  Lactuca saligna Joseph P. Tracy 1946-8-25 17650 Humboldt 15 Comment
  UC1051586  Lactuca serriola Joseph P. Tracy 1943-11-28 17460 Humboldt gravel bars <from> Alton to Fortuna; Eel River 15 Comment
  RSA21657  Lasthenia californica C. B. Wolf 1937-6-14 8812 Humboldt Kneeland Prairie; North Coast Range. 823 Comment
  UC1199124  Lasthenia californica subsp. californica Joseph P. Tracy 1932-6-19 10249 Humboldt Larrabee Valley Northern Coast Ranges, Larrabee Valley 701 Comment
  UC175194  Lasthenia californica subsp. californica Joseph P. Tracy 1913-6-21 4247 Humboldt valley Van Duzen River (opposite Buck Mountain); Northern Coast Ranges, Dinsmore's Ranch, valley of Van Duzen 762 Comment
  UC1199127  Lasthenia californica subsp. californica Joseph P. Tracy 1918-5-5 4924 Humboldt at Humboldt Bay Northern Coast Ranges, Humboldt Bay Comment
  CAS-BOT-BC352930  Lasthenia glaberrima S. K. Harris; J. P. Tracy; H. S. Yates 1936-6-17 3439 Humboldt Northwest slopes of Buck Mountain. 822 Comment
  CAS-BOT-BC204934  Lathyrus biflorus Kenneth W. Fuller 1998-7-2 s.n. Humboldt Red Mountain Comment
  JEPS82141  Lathyrus biflorus Thomas W. Nelson and Tom Jimerson 1980-8-4 6233 Humboldt ne slope Red Mountain; North Coast Ranges, Blocksburg Quad. 1371 Comment
  HSC14707  Lathyrus glandulosus Lincoln Constance 1934-6-8 837 Humboldt S Fork Eel River, Cow Creek Fire Trail, from Bull Creek Rd., N over the divide, into the headwaters of Bear Creek. Comment
  UC495704  Lathyrus lanszwertii var. tracyi Joseph P. Tracy 1927-5-15 8042 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  BLMAR719  Lathyrus littoralis Jennifer Wheeler 2011-5-20 719 Humboldt King range, Mattole Beach Sand Dunes 3 Comment
  HSC48069  Lathyrus littoralis Thomas W. Nelson 1978-4-23 3878 Humboldt NW of Samoa Comment
  UC162839  Lathyrus littoralis Joseph P. Tracy 1906-5-13 2451 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  UC162614  Lathyrus nevadensis var. nevadensis Harley P. Chandler Jun 1901 1443 Humboldt Klamath River North Coast Ranges 304 Comment
  UC176288  Lathyrus nevadensis var. nevadensis Joseph P. Tracy 1913-6-17 4172 Humboldt near Buck Mountain summit; Northern Coast Ranges 1676 Comment
  UC709436  Lathyrus polyphyllus Joseph P. Tracy 1936-8-8 15128 Humboldt 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  BLMAR279  Lathyrus polyphyllus Jennifer Anthony-Wheeler 1999-5-28 279 Humboldt King range, growing alongside prosper ridgee rd on strawberry rock allot 304 Comment
  UC1222413  Lathyrus polyphyllus Joseph P. Tracy 1951-6-16 19469 Humboldt 6 mi ne Hawkins Bar (on the Takilma-Happy Camp Road, near State Line); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  HSC23072  Lathyrus tracyi Richard Spjut 1971-5-7 1859 Humboldt 2-4 mi. up Three creeks Rd., W of Willow Creek 457 Comment
  UC1199067  Lathyrus vestitus Joseph P. Tracy 1937-6-20 15359 Humboldt s of Ferndale; Wild Cat Ridge 304 Comment
  HSC14755  Lathyrus vestitus subsp. bolanderi Lincoln Constance 1934-5-31 757 Humboldt South Fork of the Eel River, Bull Creek Flat, along Bull Creek. Comment
  HSC59240  Lathyrus vestitus subsp. bolanderi Clark L. Miller 1978-5-13 5125 Humboldt 2 mi. N of Trinidad State Park. Comment
  UC1199084  Lathyrus vestitus var. ochropetalus Joseph P. Tracy 1924-8-10 6814 Humboldt Blue Slide, on Van Duzen River Northern Coast Ranges, Van Duzen River 91 Comment
  CAS-BOT-BC325928  Layia carnosa D. E. Breedlove 1962-6-7 3040 Humboldt Sand dunes 1.5 miles S of Samoa on peninsula on western side of Humboldt Bay. Comment
  UC1224620  Layia carnosa Peter H. Raven 1963-5-15 18370 Humboldt just w of Mad River Slough Lanphere Ranch; Arcata Comment
  UC198626  Layia carnosa Joseph P. Tracy 1917-5-30 4796 Humboldt mouth Little River Comment
  UC275300  Ledum glandulosum R. M. Holman 1925-7-23 Humboldt Big Lagoon Comment
  UC1103516  Lemna minuscula Joseph P. Tracy 1919-9-14 5212 Humboldt opposite Willow Creek (Lack Pond on Trinity River); Northern Coast Ranges, Trinity River, Lack Pond 152 Comment
  POM318724  Leontodon leysseri Patricia Wilder 1968-8-21 4397 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 Comment
  HSC89416  Leontodon saxatilis subsp. saxatilis P. A. Daly 1986-1-20 45 Humboldt Trinidad Head, along trail 61 Comment
  HSC69894  Lepidium campestre Thomas W. Nelson, Jane P. Nelson 1977-7-29 3638 Humboldt Beside Hwy. 36 at head of Larabee Valley 823 Comment
  RSA246931  Lepidium didymum R. F. Thorne, Percy C. Everett 1965-8-8 35243 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  UCD115838  Lepidium strictum Joseph P. Tracy 1946-5-30 17540 Humboldt Vicinity of Carlotta. 30 Comment
  UC1199162  Lepidium virginicum Joseph P. Tracy 1911-7-8 3454 Humboldt near Willow Creek mouth (tributary of Trinity River); Northern Coast Ranges, Trinity River 152 Comment
  CAS-BOT-BC13038  Lepidium virginicum var. menziesii C. D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley. Comment
  HSC45590  Leptosiphon androsaceus Diane L. Reed 1978-5-27 126 Humboldt Horse Mtn., on Titlow Hill Rd. 1.5 mi. from junction with Hwy. 299 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
  CAS-BOT-BC334616  Leucanthemum vulgare Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  CHSC299  Leucanthemum vulgare M. Underhill 1952-7-14 Humboldt Field. 15 Comment
  CDA7526  Leucanthemum vulgare T. C. Fuller 1958-6-17 1832 Humboldt Freeway at Arcata. 0 Comment
  UC181261  Leymus X vancouverensis Joseph P. Tracy 1914-7-16 4586 Humboldt Humboldt Bay Northern Coast Region, Eureka (same spot as my #3744) 0 Comment
  HSC99548  Ligusticum apiifolium K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 213 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UCD127580  Lilaeopsis occidentalis Malcolm A. Nobs; S. Galen Smith 1949-8-3 1166 Humboldt Eel River Valley, 1 mile south of Fields Landing. Comment
  RSA259541  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
  HSC57912  Lilium kelleyanum Gilbert Muth 1979-7-31 11521 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Gasquet 1417 Comment
  JEPS62049  Lilium kelloggii Milo S. Baker 1923-7-29 145 Humboldt near Lawrence Creek Comment
  CAS-BOT-BC130684  Lilium occidentale M. Louise Hutchinson 1913-6-1 s.n. Humboldt Eureka Comment
  CAS-BOT-BC132959  Lilium rubescens A. M. Vollmer; L. Beane 1951-6-11 135 Humboldt Bridgeville Comment
  CAS-BOT-BC132960  Lilium rubescens A. M. Vollmer; L. Beane 1951-6-1 147 Humboldt On trail to Blohn's cabin, Bald Mountain, east of Korbel Comment
  HSC72679  Lilium rubescens J. P. Smith 1977-7-3 9243 Humboldt Road to Onion Mtn., 1/4 mile from its junction with USFS Rd. 10N41 762 Comment
  CAS-BOT-BC133014  Lilium washingtonianum subsp. purpurascens 1901-7-24 s.n. Humboldt Near Arcata Comment
  RSA12530  Lilium washingtonianum subsp. purpurascens Carl B. Wolf 1934-7-2 5908 Humboldt 7 miles from Bald Mountain on road to Snow Camp (mountains east of Korbel) 1067 Comment
  HSC15780  Limnanthes douglasii D. E. Anderson 1965-5-8 3634 Humboldt 4 mi. E of Berry Summit along Hwy. 299 Comment
  UC1537005  Limnanthes douglasii Gordon H. True Jr. 1936-5-11 462 Humboldt 12 mi w Miranda (e of Elk Ridge); Elk Ridge 457 Comment
  UC668278  Limnanthes douglasii subsp. douglasii Joseph P. Tracy 1993-5-20 12246 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
Read comments
Jun 28 2015
  SEINET3818260  Limnorchis leucostachys Unknown 1942-1 Humboldt Comment
  HSC16906  Limonium californicum C. B. Wolf 1927-8-28 1187 Humboldt Eureka Bay, on the road to Arcata Comment
  HSC83038  Limonium californicum A. L. Eicher 1985-6-19 Humboldt Humboldt Bay, 0.3 mi. S of the junction of Samoa Blvd. and Vance Ave. 1 Comment
  UC1198593  Linanthus androsaceus Joseph P. Tracy 1922-6-18 6093 Humboldt Head of Middle Yager Creek Northern Coast Ranges 762 Comment
  UC177192  Linanthus androsaceus Joseph P. Tracy 1912-7-21 3774 Humboldt Alton Northern Coast Region 30 Comment
  UC1198539  Linanthus harknessii Joseph P. Tracy 1933-8-30 13022 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  CHSC1747  Linaria vulgaris A. Small 1954-6-4 Humboldt Near Eureka. Comment
  HSC46136  Linum bienne J. P. Smith 1971-10-6 4964 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC48324  Linum bienne Catherine Chin 1978-5-5 54 Humboldt 17.4 mi. S of Ferndale on Mattole Rd. 91 Comment
  SDSU8125  Linum bienne D. F. Howe 1961-8-1 Humboldt 9 miles north of Arcata on #101. Comment
  UCSB30603  Linum bienne Edwards, David 1974-8-12 Humboldt North side of 7th. St., just W. of its overpass of U.S. 101, Arcata 18 Comment
  UC161076  Linum usitatissimum Joseph P. Tracy 1911-6-11 3236 Humboldt near Trinidad; Northern Coast Ranges 60 Comment
  UC1196367  Lithocarpus densiflorus Joseph P. Tracy 1921-10-2 5964 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC102135  Lithophragma campanulatum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1039 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC1223119  Logfia gallica Joseph P. Tracy 1942-5-16 17338 Humboldt vicinity Garberville Comment
  RSA728076  Lolium perenne Gary D. Wallace 1979-6-24 1860 Humboldt Near Brush Mountain Lookout, SW of the town of Willow Creek. 1216 Comment
  UC188800  Lolium temulentum Jos. Burtt Davy 1899-7-30 6205 Humboldt Russ Ranch Comment
  HSC82019  Lomatium ciliolatum var. ciliolatum Thomas W. Nelson, James Nelson 1980-6-10 5396 Humboldt Along Swayback Ridge 4-wheel drive road, 1.25 mi. S of junction with Forest Service road. 1494 Comment
  HSC36190  Lomatium dasycarpum subsp. dasycarpum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1898 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  RSA226615  Lomatium dasycarpum subsp. dasycarpum D. E. Anderson 1965-5-1 3588 Humboldt Along Highway 96, 3-4 miles south of Weitchpec Comment
  RSA167240  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy 1950-7-6 19000 Humboldt On the Albee Road, 2 miles south of Burr Valley Comment
  JEPS16238  Lomatium dissectum var. dissectum Milo S. Baker 1923-7-20 57 Humboldt Redwood House on Yager Creek; North Coast, Redwood House Comment
  UC642328  Lomatium dissectum var. dissectum Joseph P. Tracy 1928-6-24 8460 Humboldt Valley of S. Yager Creek 762 Comment
  UC906633  Lomatium dissectum var. dissectum Joseph P. Tracy 1942-6-21 17220 Humboldt at Willow Creek Trinity R. Valley 152 Comment
  HSC74497  Lomatium macrocarpum M. A. Baker 1980-7-24 3207 Humboldt Near Orleans Mtn. 1625 Comment
  HSC82036  Lomatium macrocarpum Thomas W. Nelson, James Nelson 1980-6-10 5404 Humboldt Along Swayback Ridge 4-wheel drive road, 2.5 mi. N of junction with FS Rd. 1S07 1463 Comment
  HSC96279  Lomatium macrocarpum J. Breton, A. Livingston 2005-6-15 1 Humboldt NE of Grouse Mtn. 1327 Comment
  JEPS2711 Image available Lomatium utriculatum W. L. Jepson 1934-5-8 16716 Humboldt Redway South Fork Eel River; Redway, S fork of Eel River Comment
  UC154111  Lomatium utriculatum J. P. Tracy 1904-5 2043 Humboldt immediate vicinity Eureka (restricted to small patch on bluff at Bucksport); Bucksport 0 Comment
  HSC58290  Lonicera conjugialis Walter Overton, Marvin Butler 1979-8-2 12554 Humboldt Near Bret Hole, close to the town of Hoopa. 1554 Comment
  CHSC31276  Lonicera hispidula Mark Stopher 1980-5-28 73 Humboldt Growing on Lithocarpus densiflorus along Rte 169, 1.8 mi E of Martins Ferry Bridge. Comment
  HSC3925  Lonicera involucrata var. ledebourii Jack Rockwell 1962-4-29 40 Humboldt N bank of Van Duzen River, E of Hwy. 101 9 Comment
  RSA1254  Lonicera involucrata var. ledebourii B. D. Stark 1929-7-24 590 Humboldt 8 miles S of Eureka. 30 Comment
  HSC76444  Lotus corniculatus John Demarinis 1981-7-21 880 Humboldt Near Table Bluff 38 Comment
  SD50722  Lotus corniculatus Darley F. Howe 1959-8-4 2808 Humboldt Near bridge crossing Eureka slough by Humbolt Bay, roadside. Comment
  UC199807  Lotus denticulatus Chesnut and Drew Jul 1888 Humboldt Bank of Mad River Mad River Comment
  HSC38494  Lotus humistratus D. E. Anderson, J. P. Smith 1971-6-18 - 1092 Humboldt Horse Mtn. Comment
  HSC98245  Lotus humistratus J. E. Lankila 1962-5-6 20 Humboldt W bank of Eel River across from Shively, .25 mi. from Bear Creek Comment
  HSC79469  Lotus humistratus Kenneth Clark 1980-5-10 632 Humboldt Western slope above Dead Man's Gulch 130 Comment
  CDA27276  Lotus micranthus T. C. Fuller 1958-6-17 1722 Humboldt Petrolia, Lower Mattole. 0 Comment
  UC302114  Lotus oblongifolius Joseph P. Tracy 1926-6-20 7629 Humboldt Horse Mountain Northern Coast Ranges 1463 Comment
  JEPS55909  Lotus scoparius Lincoln Constance 1934-6-1 768 Humboldt Bull Creek road, between Dyerville Bridge and Bull Creek flat grove (mouth of Bull Creek) South Fork Eel River, Bull Creek Region 45 Comment
  SEINET3560065 Image available Lotus subpinnatus Joseph P. Tracy 1906-7-4 2521 Humboldt Near Hydesville, Yager Creek 61 Comment
  HSC95074  Lotus unifoliolatus var. unifoliolatus Andrea Pickart 2002-7-2 157 Humboldt Humboldt Bay Dunes, Big Dune, Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 24 Comment
  JEPS43859  Ludwigia palustris Jos. P. Tracy 1926-8-12 7765 Humboldt near the S. Fork Trinity R. Valley 182 Comment
  JEPS82250  Luina hypoleuca Roger Raiche 1983-7-19 30536 Humboldt w side Saddle Mt. (King Mt. Trail Road); King Mt. Range, Saddle Mt. 853 Comment
  OBI33908  Lupinus David J. Keil 1983-7-2 17319 Humboldt Ca. 4 mi SE of SR 299 along Titlow Hill rd below Horse Mtn Summit rd Comment
  UC176295  Lupinus adsurgens Joseph P. Tracy 1913-6-19 4200 B Humboldt opposite Buck Mountain (Dinsmore's); Northern Coast Ranges, valley of Van Duzen River, Dinsmore's 762 Comment
  RSA104807  Lupinus adsurgens var. adsurgens E. R. Drew, Chestnut 1888-7-21 146385 Humboldt S Fork Mtn. Comment
  JEPS64896  Lupinus albicaulis Joseph P. Tracy 1923-6-19 6298 Humboldt near King's Peak (Wilder Ridge); Northern Coast Ranges 762 Comment
  SEINET200686  Lupinus albicaulis Joseph P. Tracy 1926-5-15 7495 Humboldt Kneeland Prairie. 762 Comment
  RSA43866  Lupinus albicaulis var. shastensis H. M. Pollard 1947-8-9 s.n. Humboldt Roadside west of Orleans Comment
  UC146919  Lupinus albicaulis var. shastensis Harley P. Chandler June, 1901 1499 Humboldt near Weitchpec (Klamath River); North Coast Ranges, Klamath River 426 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
  HSC58413  Lupinus andersonii Griswold, Butler 1979-7-12 7173 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  CHSC10105  Lupinus arboreus J. W. Johnson 1961-9-3 1078 Humboldt Arcata. In the dune fields, Christenson Farm, Samoa Peninsula. Comment
  HSC14776  Lupinus arboreus S. J. Hawks 1965-5-18 84 Humboldt W of Arcata Airport. Comment
  HSC14778  Lupinus arboreus R. A. Rasp 1964-5-17 39 Humboldt 1/2 mi. N of Fairhaven on the Samoa pennisula Comment
  UCD106622  Lupinus arboreus Roman Gankin 1965-8-6 548 Humboldt 1.3 miles south of Samoa, Samoa Peninsula. Comment
  CAS-BOT-BC205381  Lupinus elmeri Joseph P. Tracy 1930-7-16 8954 Humboldt South Fork Mountain; open glades along summit near Blake lookout 1737 Comment
  HSC58680  Lupinus latifolius G. L. Clifton, Griswold 1979-8-2 12238 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC35605  Lupinus latifolius subsp. viridifolius Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2016 Humboldt French Camp, Bald Hills. Comment
  HSC70982  Lupinus latifolius subsp. viridifolius Gail Newton 1980-7-22 1663 Humboldt Near Devils Backbone 1554 Comment
  UC205479  Lupinus latifolius var. latifolius Joseph P. Tracy 1919-5-31 5174 Humboldt along Willow Creek ((Tributary of Trinity River) near its mouth); Northern Coast Ranges, Trinity River, along Willow Creek 152 Comment
  HSC36152  Lupinus lyallii var. villosus Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-20 2049 Humboldt Along Rd. 2S08 to Pine Mtn. 1524 Comment
  HSC39785  Lupinus rivularis Peter Sorensen 1976-5-29 Humboldt King Salmon Comment
  JEPS29845  Lupinus rivularis Rimo Bacigalupi and L. Heckard, J. Weiler 1961-6-23 7835 Humboldt about 1 mi w of Carlotta (or about 1/2 mi e of Hydesville) Comment
  BLMAR289  Luzula comosa Jennifer Anthony-Wheeler 2000-4-18 289 Humboldt King range, growing on rocky ridgeline, outcrop/vista in millcrk forest 402 Comment
  HSC74172  Luzula comosa M. A. Baker 1980-7-23 3155 Humboldt Near Orleans Mtn. 1859 Comment
  POM126144  Luzula comosa Joseph P. Tracy 1923-6-24 6368 Humboldt Bald Mountain. In cold wet meadow near High Prairie. 1067 Comment
  JEPS370  Lycopodium clavatum Joseph P. Tracy 1932-8-13 10341 Humboldt woods around a swamp 3 mi e Trinidad; Northern Coast Region 152 Comment
  UCD135966  Lycopodium clavatum K. Niles 1950-10-1 s.n. Humboldt Loleta. Comment
  UCD23453  Lycopodium clavatum K. Niles 1950-10-1 s.n. Humboldt Loleta. Comment
  UC577388  Lycopus americanus Joseph P. Tracy 1934-8-31 6853 Humboldt Klamath R. at mouth of Bluff Creek; Klamath R. 91 Comment
  CAS-BOT-BC215681  Lycopus uniflorus Carl B. Wolf 1927-8-22 786 Humboldt Big Lagoon Comment
  RSA239701  Lysichiton americanus Larry E. DeBuhr 1973-4-23 1000 Humboldt Big Lagoon 10 miles S of Orick, SW end of lagoon Comment
  HSC15935  Lythrum hyssopifolia W. C. Vinyard, D. E. Anderson 1961-10-12 Humboldt Humboldt State College Campus. Comment
  RSA47139  Madia bolanderi Doris K. Kildale 1925-8-16 1180 Humboldt Trinity Summit, Elk Horn Prairie 1524 Comment
  CAS-BOT-BC342809  Madia elegans Lincoln Constance; Reed C. Rollins 1942-5-11 2875 Humboldt California North Coast Ranges. Hoopa Valley 5 miles south of Hoopa 121 Comment
  UC195538  Madia elegans Joseph P. Tracy 1908-6 2683 Humboldt near bridge across Little Van Duzen (nw slope of Buck Mountain); Northern Coast Ranges, Buck Mountain 762 Comment
  CAS-BOT-BC343018  Madia gracilis Joseph P. Tracy 1934-7-18 13432 Humboldt North Coast Ranges. Grouse Mountain 1524 Comment
  HSC57190  Madia gracilis Griswold, Butler 1979-7-11 6906 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  HSC67886  Madia gracilis J. P. Smith 1973-5-26 6868 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  JEPS40205  Madia gracilis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8957 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  SEINET3148089  Madia gracilis J. B. Davy, W. C. Blasdale 1899-6-19 5674 -C Humboldt Hoopa Mt. Comment
  HSC37658  Madia gracilis R. Sutherland 1976-8-19 5 .19876 Humboldt 259 Comment
  JEPS40214  Madia gracilis Joseph P. Tracy 1927-7-4 8229 Humboldt at the crossing of Kneeland Road Northern Coast Ranges, Lawrence Creek 609 Comment
  UC495629  Madia gracilis Joseph P. Tracy 1927-7-4 8229 Humboldt Lawrence Creek, at crossing of the Kneeland Road 609 Comment
  HSC40133  Madia sativa Thomas W. Nelson 1976-8-10 3167 Humboldt Beside Hwy. 101 at the turnoff to Sunnybrae Comment
  RSA1369  Mahonia nervosa E. R. Johnson 1929-08 618 Humboldt 7 miles east of Arcata on the road to Willow Creek. 76 Comment
  UCR198042  Maianthemum dilatatum Daniel Sanchez-Mata, S. Rivas-Martinez, M. Costa, M. Ladero 1998-6-10 s.n. Humboldt Trinidad-Klamath Glenn. Prairie Creek State Park, Prairie Creek Trail 70 Comment
  CAS-BOT-BC508519  Maianthemum dilatatum Alice Eastwood 1907-4-21 35 Humboldt Port Trinidad Comment
  SEINET12044316  Maianthemum dilatatum H. E. Parks 1932-1 4289 Humboldt Bishop Pine Lodge, Trinidad Comment
  RSA554593  Maianthemum racemosum subsp. amplexicaule Walter Wisura 1993-5-9 4911 Humboldt Northwest: Hwy 299, 5.7 mi. W of Willow Creek at E-fork camp ground. Comment
  SEINET12051375  Maianthemum racemosum subsp. amplexicaule F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -316 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  HSC98154  Maianthemum stellatum Jack Rockwell 1962-4-29 38 Humboldt E bank of Redwood Creek, near Hwy. 299 549 Comment
  POM56123  Malacothrix floccifera Joseph P. Tracy 1918-7-6 5049 Humboldt South Fork of Eel River near the Humboldt-Mendocino County Line 152 Comment
  UC1239529  Malacothrix floccifera Joseph P. Tracy 1935-7-17 14100 Humboldt Willow Creek Canyon Northern Coast Ranges 304 Comment
  POM87681  Malus fusca L. R. Abrams 1922-6-25 8280 Humboldt Big Lagoon. South of Orick. Comment
  HSC15993  Malva nicaeensis Paul Shields 1955-6-3 Humboldt HSC campus Comment
  UC1198476  Marah oregana Joseph P. Tracy 1927-6-8 8109 Humboldt Trinidad Northern Coast Ranges 60 Comment
  RSA79372  Marah oregana E. K. Balls, L. W. Lenz 1952-5-12 17199 Humboldt 0.6 mi E of Dinsmore along Hwy 36 from Alton to Red Bluff. Comment
  HSC71609  Medicago lupulina J. P. Smith, Steve Selva 1970-6-14 3815 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  RSA152371  Melica californica Joseph P. Tracy 1943-5-9 17418 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UCD87523  Melica harfordii P. B. Kennedy 1916-6-1 s.n. Humboldt Eureka. Comment
  UC188816  Melica subulata Jos. Burtt Davy and W. C. Blasdale 1899-6-22 5822 b Humboldt Trinity Summit Comment
  UC277169  Melica torreyana Joseph P. Tracy 1921-4-24 5450 Humboldt Phillipsville Northern Coast Ranges, South Fork of Eel River (South Fork of Eel River) 91 Comment
  HSC69698  Melilotus albus R. Kalal 1980-6-8 17 Humboldt Pump Station #1, along the Mad River 14 Comment
  HSC15519  Melilotus albus C. Kline 1970-11-9 66 Humboldt .5 mi. N of Bayside, Bayside Rd. Comment
  UC1222473  Melilotus officinalis Joseph P. Tracy 1949-7-7 18337 Humboldt Blue Slide Van Duzen River 91 Comment
  UC577386  Melissa officinalis Joseph P. Tracy 1927-11-24 8395 Humboldt farmyard Carlotta 60 Comment
  UC418978  Mentha canadensis H. E. Parks 1930-9-14 728 Humboldt Big Lagoon Comment
  UCD125052  Mentha canadensis Malcolm A. Nobs; S. Galen Smith 1949-8-9 1241 Humboldt on south side of the town of Blue Lake. Comment
  HSC90755  Mentha pulegium Gail Newton 1983-8-21 3856 Humboldt Elk River Wildlife Area, Eureka. Comment
  HSC98868  Mentha pulegium Cara Witte 2008-8-5 991 Humboldt Along National Forest 1 on Kinsey Ridge. 1/2 north of intersection with Forest Service Road 4N06. 1291 Comment
  UC668288  Mentzelia dispersa Joseph P. Tracy 1937-7-24 15521 Humboldt Trinity Summit, Devil's Hole 1676 Comment
  UC169909  Mentzelia laevicaulis var. laevicaulis P. E. Goddard July 1901 24 Humboldt Hupa Valley Comment
  SJSU2546  Menziesia ferruginea H. L. Buckalew 1962-6-28 Humboldt Prairie Cr Redwoods State Park Comment
  UC1225906  Menziesia ferruginea Joseph P. Tracy 1947-5-24 17687 Humboldt Big Lagoon 15 Comment
  UC164795  Microseris acuminata Joseph P. Tracy 1903-5-23 1891 Humboldt Alder Point Northern Coast Ranges 152 Comment
  UC1223200  Microseris douglasii subsp. douglasii Joseph P. Tracy 1948-6-13 18057 Humboldt 3 mi w Harris Comment
  UC175596  Mimulus arvensis Joseph P. Tracy 1912-6-9 3688 Humboldt Alton Northern Coast Region 30 Comment
  HSC99424  Mimulus breweri K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-1 73 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  JEPS10550  Mimulus breweri W. L. Jepson 1902-7-23 2108 Humboldt Trinity Summit 2133 Comment
  JEPS28968  Mimulus breweri Joseph T. Gregory 1935-7-28 792 Humboldt head Devil's Hole; Trinity Summit 1828 Comment
  HSC20758  Mimulus dentatus R. E. Hafenfeld 1965-5-9 51 Humboldt Fern Canyon, Gold Bluff Beach Comment
  SBBG66765  Mimulus dentatus L. Rowntree 1931-7-24 Humboldt Carlotta Comment
  HSC100669  Mimulus dentatus Carl C. Marshall Jun 1886 126 Humboldt Damp places near the bay. Comment
  JEPS10484  Mimulus guttatus Joseph P. Tracy 1933-5-20 12252 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
  JEPS27379  Mimulus inodorus H. W. Grinnell 1932-7-22 Humboldt near Blake Lookout (s of USGS Signal Rock); South Fork Mountain Comment
  UC582480  Mimulus inodorus Joseph P. Tracy 1923-9-16 6551 Humboldt near South Fork; Trinity River Valley 182 Comment
  UC41884  Mimulus kelloggii Chesnut and Drew July 1888 Humboldt Pilot Ridge Comment
  UCD20373  Mimulus kelloggii K. Esau 1935-4-23 s. n. Humboldt Humboldt County, Fort Seward. Comment
  HSC44556  Mimulus moschatus Brad Klipfel 1973-7-15 175 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC98844  Mimulus moschatus Cara Witte 2008-7-11 876 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  UC1196834  Mimulus nasutus Joseph P. Tracy 1912-7-26 3828 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  CDA30215  Mimulus pilosus M. K. Beyers, I. Shepardson 2009-9-13 238 Humboldt In dry portion of the western side of the Eel River, near the base of the entrance of an inlet creek, that runs underneath State Route 254 (Avenue of the Giants) and Highway 101 here. 0 Comment
  JEPS11056  Mimulus primuloides Joseph P. Tracy 1935-7-26 14258 Humboldt Water Dog Lakes Trinity Summit 1828 Comment
  HSC102508  Mimulus primuloides var. primuloides M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1493 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC55988  Mimulus primuloides var. primuloides Overton, Butler 1979-7-31 11403 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UC1565790  Mimulus pulsiferae R. Spellenberg 1990-7-10 10252 Humboldt 1 mi w Horse Mountain (7.5 air mi sw of Willow Creek county road 7K100 4.5 mi s of Berry Summit (on CA Hwy 299), extreme e edge county) 1219 Comment
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Sep 10 2013
  HSC42454  Mimulus pulsiferae Barbara Kelly 1977-7-16 539 Humboldt On Horse Mtn. Rd., 1/2 mi. below where it forks; 1.5 mi. below summit 1402 Comment
  CAS-BOT-BC388620  Minuartia douglasii Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. Trail 914 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
  HSC74236  Minuartia nuttallii subsp. gregaria M. A. Baker 1980-7-11 2794 Humboldt Near Red Mtn. 1341 Comment
  HSC57673  Minuartia pusilla G. L. Clifton, Griswold 1979-7-25 10866 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  CAS-BOT-BC433032  Mitella ovalis Lincoln Constance; Reed C. Rollins 1942-5-11 2865 Humboldt California North Coast Ranges. Near summit 8 miles east of Blue Lake. Comment
  UC1051581  Mitella trifida Joseph P. Tracy 1935-7-23 14151 Humboldt McKay Prairie Trinity Summit 1584 Comment
  HSC74371  Moehringia macrophylla M. A. Baker 1980-6-16 1950 Humboldt Near Onion Mtn. 1280 Comment
  UC8145  Moehringia macrophylla Mrs. Mary H. Manning Apr. 1899 Humboldt Hoopa Valley Comment
  HSC98019  Monardella sheltonii Cara Witte 2007-7-9 457 Humboldt Forest Service Road 4N32. 1.4 mile north of intersection with 4N32B. 1413 Comment
  JEPS14830  Monotropa hypopitys W. L. Jepson 1902-6 1946 Humboldt woods near Green Pt. Ranch; Hupa Road Comment
  SEINET3026082  Montia fontana Joseph P. Tracy 1904-4-3 200 Humboldt Eureka. 0 Comment
  JEPS17205  Montia howellii Joseph P. Tracy 1921-4-24 5431 Humboldt South Fork of Eel River, Phillipsville Flat Eel River; Northern Coast Ranges, Phillipsville Flat, Eel River 91 Comment
  CAS-BOT-BC445164  Montia parvifolia L. R. Abrams 1918-6-16 7202 Humboldt Willow Creek Comment
  HSC37166  Montia parvifolia J. D. Ackerman 1974-5-25 258 Humboldt S Trinidad Beach, S of Trinidad Head Comment
  UC1561278  Montia parvifolia Barbara Ertter with Thomas J. Delendick 1987-5-16 6935 Humboldt 3 mi e of Berry Summit (on Hwy 299, 20 air mi e of Arcata, on s side of road above Willow Creek) 800 Comment
  RSA0056335  Montia sibirica Jim Shevock 1971-5-29 1142 Humboldt Highway 299, Trinity Highway. 457 Comment
  UCD110311  Morella californica Joseph P. Tracy 1948-4-4 17956 Humboldt Near Samoa, on Humboldt Bay. 6 Comment
  CAS-BOT-BC260575  Muhlenbergia filiformis Doris K. Kildale 1925-8-17 1262 Humboldt Trinity Summit 1917 Comment
  HSC58649  Muhlenbergia filiformis G. L. Clifton, Griswold 1979-7-31 11677 Humboldt Near the Trinity Summit Guard Station, close to the town of Hoopa. 1804 Comment
  RSA10148  Muhlenbergia filiformis Joseph P. Tracy 1932-7-14 10544 Humboldt Klamath Mountains; Trinity Summit. Wet Meadow at Corral Prairie 0 Comment
  UC55917  Myosotis discolor J. P. Tracy 1900-5-28 827 Humboldt immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC101664  Myrica californica Volney Rattan s.n. Humboldt unspecified Comment
  UC526765  Nassella pulchra Joseph P. Tracy 1929-5-5 8562 Humboldt Miranda Northern Coast Ranges, South Fork Eel River 121 Comment
  HSC100457  Nasturtium curvisiliqua Carl C. Marshall May 1885 45 Humboldt Peninsula near marsh. Comment
  CAS-BOT-BC60344  Nasturtium officinale Kenneth Clark 1980-5-10 650 Humboldt Shelter Cove. Point Delgada. On Western beach coastal bluffs. 6 Comment
  JEPS70409  Navarretia intertexta subsp. propinqua Chesnut and Drew 1888-1 Humboldt Comment
  UC1197893  Navarretia linearifolia subsp. linearifolia Joseph P. Tracy 1933-7-25 12866 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  UC1197900  Navarretia linearifolia subsp. linearifolia Joseph P. Tracy 1937-8-5 16385 Humboldt near Dinsmore's; Van Duzen River 737 Comment
  HSC17144  Navarretia pubescens William J. Ferlatte, B. D. Rogers 1966-6-15 2098 Humboldt E of Bridgeville on Hwy. 36 671 Comment
  JEPS70473  Navarretia squarrosa Joseph P. Tracy 1935-7-18 14103 Humboldt Table Bluff 6 Comment
  UCR30859  Navarretia squarrosa A. C. Sanders 1981-8-6 2308 Humboldt Russ Park, City of Ferndale 46 Comment
  SEINET8729374 Image available Navarretia squarrosa H. E. Parks 1952-1 s.n. Humboldt Trinidad Comment
  POM182444  Navarretia tagetina Chestnut, E. R. Drew 1888-7-23 s.n. Humboldt Hy-Am-Pom [=Hyampom, Trinity Co?] Comment
  UC582689  Navarretia viscidula Joseph P. Tracy 1937-7-11 15420 Humboldt vicinity Garberville 121 Comment
  CAS-BOT-BC233456  Nicotiana glauca Clare R. Wheeler 1979-8-13 1205 Humboldt Avenue of the Giants, SW Mailliard Grove, Humboldt State Park 152 Comment
  HSC64816  Noccaea fendleri subsp. glauca J. P. Smith, J. O. Sawyer 1976-5-2 8632 Humboldt Redwood Creek-Hoopa Rd., 0.6 mi. W of its junction with Loop Rd. in Hoopa Reservation 122 Comment
  POM266040  Noccaea fendleri subsp. glauca Lincoln Constance, Reed C. Rollins 1942-5-11 2877 Humboldt Hoopa Valley, 5 miles south of Hoopa. 122 Comment
  RSA0013607  Nuphar lutea subsp. polysepala C. B. Wolf 1937-9-9 9309 Humboldt 1 mi. so. of Capetown on road to Cape Mendocino. 91 Comment
  HSC69696  Nuphar polysepala R. Kalal 1980-6-1 10 Humboldt Essex Pond 15 Comment
  HSC59108  Nuttallanthus texanus M. A. Baker 1978-5-6 481 Humboldt 2 km. S of Weitchpec Comment
  CAS-BOT-BC142292  Oemleria cerasiformis Doris K. Kildale; J. W. Gillespie 1929-6-25 8391 Humboldt Pine's Pasture, Eureka Comment
  UC183584  Oemleria cerasiformis Joseph P. Tracy 1912-3-31 3564 Humboldt Blue Lake; Northern Coast Ranges 30 Comment
  HSC97444  Oenanthe sarmentosa Ivy Watson 2008-9-28 27 Humboldt Beach N of river mouth, along small tributary E of sand dunes 4 Comment
  CDA38485  Oenanthe sarmentosa Tario 1932-9-21 s.n. Humboldt Arcata. 0 Comment
  CHSC70154  Oenothera glazioviana David K. Imper 1993-6-15 Humboldt Base of sand dunes, south end of Manila, west of Eureka. 6 Comment
  CDA38174  Oenothera villosa subsp. strigosa E. C. Whitney 1966-8-3 s.n. Humboldt Orleans; Ferris Property. 0 Comment
  HSC103084  Orobanche fasciculata Sydney Carothers 2014-6-22 3 Humboldt Six Rivers National Forest, Lassics Botanical Area; on saddle between Peak 1 and Mt. Lassic 1796 Comment
  HSC102611  Orobanche uniflora M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1598 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  SEINET200762  Orogenia fusiformis Joseph P. Tracy 1942-6-23 17252 Humboldt Near top west of Water-Dog Lakes Trinity Summit. 1829 Comment
  HSC44558  Orthocarpus imbricatus Brad Klipfel 1973-7-15 177 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CHSC97962  Osmorhiza berteroi Kaylea Eickhoff; Cara M. Witte 2005-6-10 7 Humboldt Coldspring Camp, 7.4 miles south of Hwy. 299 on NF1. UTM 0439771, 4520563. 1370 Comment
  UC1197133  Osmorhiza berteroi Joseph P. Tracy Jul 27 1908-Jul 30 1908 2738 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  HSC56091  Osmorhiza occidentalis G. L. Clifton, Terry Griswold 1979-7-31 11784 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  UC183665  Osmorhiza occidentalis Joseph P. Tracy 1913-6-20 4238 Humboldt Buck Mountain Northern Coast Ranges (lower foothills, on nw slope) 762 Comment
  HSC16721  Oxalis articulata subsp. rubra N. R. Waite 1965-5-19 36 Humboldt W edge of Humboldt State University campus. Comment
  HSC16727  Oxalis oregana Francis Winter 1960-5-7 Humboldt Pine Ridge Summit 686 Comment
  UC275339  Oxalis oregana Joseph P. Tracy 1923-4-8 6177 Humboldt Carlotta Northern Coast Ranges 60 Comment
  UCD110988  Oxalis oregana T. E. Weier 1942-5-21 s.n. Humboldt near Dyerville, Highway 101. Comment
  POM87947  Oxalis rubra L. R. Abrams 1922-6-25 8263 Humboldt Between Trinidad and Big Lagoon Comment
  CDA38475  Oxypolis occidentalis Laurel Goldsmith & Wanda Naylor 2005-6-15 7 Humboldt Coldspring Camp, 7.4 mi. south of Hwy. 299 on NF1. Comment
  UC1145218  Panicum acuminatum var. acuminatum Joseph P. Tracy 1942-7-18 17286 Humboldt 1/2 mi ne Garberville; ne of Garberville 304 Comment
  UC196969  Panicum acuminatum var. acuminatum Joseph P. Tracy 1915-6-6 4644 Humboldt at Eureka Eureka; Northern Coast Region, at Eureka 0 Comment
  UC1103779  Panicum capillare Joseph P. Tracy 1920-8-15 5369 Humboldt Klamath River at Bluff Creek; Northern Coast Ranges, Klamath River 152 Comment
  HSC13258  Parapholis incurva D. E. Anderson 1965-6-10 3794 Humboldt Harbor area of Eureka. Comment
  RSA246893  Parapholis incurva R. F. Thorne, P. Everett 1965-8-8 35274 Humboldt N edge of Eureka, E of Hwy 101. 3 Comment
  HSC39944  Parentucellia viscosa Linda M. Barker 1976-7-5 1640 Humboldt 3 mi. W of Arcata Comment
  CDA6400  Parentucellia viscosa G. D. Barbe, T. C. Fuller 1974-6-17 1827 Humboldt Murray Field, County Airport, north of Eureka. 0 Comment
  HSC54592  Paxistima myrsinites Overton, Butler 1979-7-24 9660 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC75415  Paxistima myrsinites J. O. Sawyer, M. A. Ericksen 1980-7-18 3645 Humboldt Along FS Rd. 10N02, S of Middle Fork of Mill Creek Comment
  UC249586  Paxistima myrsinites Joseph P. Tracy 1921-6-19 5835 Humboldt mt. slopes along rd. between Three Creeks and mouth of Willow Creek; Northern Coast Ranges, Three Creeks 670 Comment
  UC1239631  Pectocarya penicillata Joseph P. Tracy 1911-7-10 3484 Humboldt near mouth Willow Creek; Valley of Trinity River 152 Comment
  UC1000449  Pedicularis densiflora Joseph P. Tracy 1942-5-16 17351 Humboldt Garberville 304 Comment
  UC902220  Pedicularis densiflora Joseph P. Tracy 1941-3-26 16818 Humboldt at Willow Creek Willow Creek; Trinity River Valley 152 Comment
  UC902222  Pedicularis densiflora Joseph P. Tracy 1948-5-31 18006 Humboldt Harris 762 Comment
  RSA183616  Pedicularis densiflora D. E. Anderson 1965-5-1 3556 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek. Comment
  HSC99109  Pellaea brachyptera Cara Witte 2008-6-13 714 Humboldt Forest Service Road 4N32. 1.4 miles north of intersection with Forest Service Road 4N32B. 1382 Comment
  HSC95881  Pellaea mucronata var. mucronata Will Ferrand 2002-4-28 41 Humboldt About 0.5 mi. S of intersection of Hwy. 299 and South Fork Trinity exit 259 Comment
  HSC55832  Penstemon anguineus G. L. Clifton, Terry Griswold 1979-7-25 10748 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  JEPS26256  Penstemon anguineus Joseph P. Tracy 1919-9-18 5250 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1524 Comment
  SDSU10915  Penstemon anguineus D. F. Howe 1964-8-7 3945 Humboldt 6.2 miles from #96 on Mill Creek Road, Hoopa Valley. 1067 Comment
  RSA21319  Penstemon azureus subsp. azureus Carl B. Wolf 1937-8-13 9220 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  HSC102131  Penstemon deustus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1035 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC102599  Penstemon deustus M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1586 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  JEPS11368  Penstemon heterophyllus var. purdyi Lincoln Constance 1934-5-26 676 Humboldt s end of Dyerville Bridge Bull Creek Region, South Fork Eel River, Dyerville Bridge (South Fork Eel River, Bull Creek Region) 45 Comment
  HSC39932  Penstemon laetus subsp. sagittatus J. O. Sawyer 1970-6-25 2293 Humboldt 1646 Comment
  JEPS11633  Penstemon laetus var. sagittatus Joseph P. Tracy 1935-7-14 14073 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  HSC76254  Penstemon newberryi Teresa Prendusi 1981-7-21 286 Humboldt Near Whiteys Peak 1646 Comment
  JEPS5715  Penstemon newberryi var. berryi Chestnut and Drew 1888-7-21 Humboldt South Fork Mountain Comment
  JEPS7919  Penstemon rattanii Joseph P. Tracy 1930-8-24 9166 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  NY641283  Penstemon rattanii J. P. Tracy 1906-6-10 2480 Humboldt Kneeland Prairie 762.0 Comment
  JEPS26255  Penstemon rattanii Arthur E. Connick 1925-6-1 Humboldt hills near Stone Lagoon; hills near Stone Lagoon 60 Comment
  HSC1079  Pentagramma triangularis Jack Rockwell 1962-4-29 42 Humboldt S Bank of Van Duzen River, E of Hwy. 101 9 Comment
  HSC61769  Pentagramma triangularis Ruby Van Deventer 1963-7-1 Humboldt Along the Klamath R. at Pecwan 239 Comment
  RSA0070753  Pentagramma triangularis Doris K. Kildale 1928-12-29 6765 Humboldt Stevens Grove. Comment
  CAS-BOT-BC71615  Pentagramma triangularis subsp. triangularis Henry M. Pollard 1946-9-7 s.n. Humboldt Woodson Mine, Orleans Mt. Comment
  UC180225  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1914-10-11 4637 Humboldt Stephen Hill place Northern Coast Region, Eureka 0 Comment
  SD112992  Perideridia howellii Darley F. Howe 1961-8-2 3125 Humboldt 24 miles east of Orick on Bald Mt. road. 915 Comment
  UC1389970  Perideridia kelloggii T. I. Chuang and B. G. Briggs 1963-4-10 5088 Humboldt 4 mi e Myers Flat Comment
  UC1389995  Perideridia oregana T. I. Chuang and R. S. Mitchell 1965-6-30 6002 Humboldt Grouse Mountain; on Clear Lake Rd. Comment
  HSC64431  Persicaria maculosa J. P. Smith 1971-10-6 4950 Humboldt End of Murray Rd. in McKinleyville. Comment
  CAS-BOT-BC419193  Persicaria maculosa Carl D. Duncan 1920-9-22 s.n. Humboldt Trinity River, Hoopa Valley Comment
  HSC89625  Petasites frigidus Brent Helm, Curtis Miller, Mark Steiger 1988-3-12 29 Humboldt Lord Ellis Summit, Hwy. 299, N facing slope adjacent to Hwy. 518 Comment
  RSA21605  Petasites palmatus C. B. Wolf 1937-9-14 9352 Humboldt North Coast Range, Lord Ellis Road, 7.6 miles east of Blue Lake. 213 Comment
  HSC26590  Petrorhagia dubia D. E. Anderson 1973-4-20 Humboldt Flood plain of Eel River 5 mi. E of Founders Tree area, Avenue of the Giants Comment
  HSC100689  Peucedanum Carl C. Marshall Apr 1887 359 Humboldt Hoopa trail on Supply Creek 610 Comment
  POM287459  Phacelia bolanderi Lyman Benson 1929-7-16 1839 Humboldt Dyerville Junction of North and South Forks of Eel River. Comment
  SEINET12335252  Phacelia californica F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -303 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  CHSC110702  Phacelia corymbosa Dean Wm. Taylor 2004-6-24 19129 Humboldt North Coast Ranges. Horse Mountain, along Titlow Hill Road 0.4 miles north from the junction with the road to the mountain summit. 1310 Comment
  HSC96240  Phacelia heterophylla subsp. virgata Kaylea Eickhoff, Cara M. Witte 2005-6-8 6 Humboldt 1.7 mi. S of Hwy. 299 on Titlow Hill Rd. 980 Comment
  UC562573  Phacelia heterophylla subsp. virgata Joseph P. Tracy 1926-6-20 7661 Humboldt lower slopes Horse Mt. 914 Comment
  JEPS1201  Phacelia malvifolia Joseph P. Tracy 1927-6-8 8118 Humboldt TRINIDAD Comment
  UC169011  Phacelia nemoralis subsp. oregonensis Harley P. Chandler 1901-6-4 1336 Humboldt Campbell Creek North Coast Ranges, Hupa Indian Reservation 152 Comment
  HSC102194  Phacelia procera M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1108 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  UC1541532  Phalaris angusta Harold E. Parks May 1934 4950 Humboldt head of South Humboldt Bay Comment
  HSC56132  Philadelphus californicus G. L. Clifton, Griswold 1979-8-1 11949 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  CAS-BOT-BC76564  Philadelphus lewisii Doris K. Kildale 1928-6-9 5057 Humboldt Chalk Mountain Comment
  LA97948  Philadelphus lewisii Jane Turner; Francis M. Ball 1962-7-10 SK&F- 1145 Humboldt East Fork Willow Creek Forest Camp, Six Rivers National Forest, highway 299 ca. 5 mi. W of Willow Creek 457 Comment
  HSC74182  Phleum alpinum M. A. Baker 1980-7-22 3105 Humboldt Near Grogan Hole. 1676 Comment
  RSA10146  Phleum pratense Joseph P. Tracy 1933-7-21 12822 Humboldt Valley of South Yager Creek 762 Comment
  RSA728071  Phleum pratense Gary D. Wallace 1979-6-24 1865 Humboldt Brush Mountain Lookout, SW of the town of Willow Creek. 1216 Comment
  UC1145045  Phleum pratense Joseph P. Tracy 1948-8-8 18089 Humboldt Iaqua; near the school house 609 Comment
  HSC65479  Phlox adsurgens M. A. Baker 1980-6-7 1806 Humboldt Near Brush Mtn. 1128 Comment
  HSC59450  Phoradendron serotinum subsp. tomentosum Kenneth Clark 1979-5-13 280 Humboldt Chezem Rd., off of Hwy. 299, 0.2 mi. W of N end of Chezem Rd. 610 Comment
  CAS-BOT-BC140581  Physocarpus capitatus Thomas Nelson; Linda Barker 1977-6-3 3387 Humboldt On flood plain of Mad River at south end of Mad River Bridge 53 Comment
  CAS-BOT-BC140586  Physocarpus capitatus Doris K. Kildale 1926-5-15 3158 Humboldt Petrolia Bridge, Mattole River Valley Comment
  CHSC1563  Physocarpus capitatus A. Small 1954-6-4 Humboldt Coastal near Capetown. Comment
  HSC99286  Physocarpus capitatus T. Jimerson, J. Pageau 1979-6-22 609 Humboldt Near Bee Mtn., close to the town of Orleans 655 Comment
  UC1198700  Physocarpus capitatus Joseph P. Tracy 1922-10-29 6133 Humboldt Alton 30 Comment
  SDSU1550  Picea sitchensis D. F. Howe 1961-8-1 3110 Humboldt Three miles north of Arcata on #101. Comment
  SEINET10904948  Picris echioides Mary Susan Taylor 1977-8-5 Taylor 1431 Humboldt Abundant around bridge over Eel River, at the turnoff from Hwy 1 to Ferndale, in Fernbridge. 2 Comment
  CAS-BOT-BC78287  Pinus attenuata Henry M. Pollard 1947-9-1 s.n. Humboldt Ridge approaching Somes Peak, Orleans region 1219 Comment
  LA6061  Pinus contorta H. E. Parks; May 1931 sn Humboldt Samoa Comment
  SD41323  Pinus contorta Edith A. Purer 1932-7-27 4132 Humboldt Samoa, near Arcata Comment
  UC1541649  Pinus contorta Harold E. Parks 1934-2-1 4775 Humboldt along shore cliffs Spruce Cove; Trinidad, Spruce Cove Comment
  RSA46681  Pinus contorta var. contorta Doris K. Kildale 1937-8-12 15084 B Humboldt South Fork Mountain. Comment
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Jun 21 2012
  HSC54523  Pinus jeffreyi Overton, Butler 1979-7-23 9455 Humboldt Near Horse Mountain Mine, close to the town of Willow Creek 1295 Comment
  RSA46880  Pinus lambertiana Doris K. Kildale 1926-9-5 2611 Humboldt Lassecks Peaks. 1570 Comment
  HSC70642  Pinus ponderosa R. York 1980-5-18 591 Humboldt Near Black Mtn. 792 Comment
  HSC98598  Pinus ponderosa var. ponderosa Cara Witte 2008-7-10 859 Humboldt Along National Forest 1 on Kinsey Ridge. 1/4 mile from Forest Service Road 4N06. 1241 Comment
  HSC98866  Pinus ponderosa var. ponderosa Cara Witte 2008-7-1 787 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately .5 mile south of intersection with 5N04 and 4N32E. 1406 Comment
  UC14939  Piperia elegans Harley P. Chandler Jun 1901 1385 b Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  RSA259584  Piperia transversa J. D. Ackerman 1974-8-14 408 Humboldt 2 miles north of Manila, between sand dunes and Mad River Slough Comment
  HSC65967  Pityopus californicus M. A. Baker 1980-7-20 3043 Humboldt Near Bell Swamps 11 Comment
  CAS-BOT-BC169835  Plagiobothrys Doris K. Kildale 1929-4-27 7450 Humboldt Willow Creek - Salya road along Trinity River. 3 miles N of Willow Comment
  CAS-BOT-BC169838  Plagiobothrys Volney Rattan 1882-6-1 s.n. Humboldt unspecified Comment
  UC881326  Plagiobothrys bracteatus Alice Eastwood and John Thomas Howell 1937-6-23 4811 Humboldt Little Van Duzen River Comment
  UC1239573  Plagiobothrys bracteatus Joseph P. Tracy 1919-5-31 5152 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC526809  Plagiobothrys nothofulvus Joseph P. Tracy 1927-3-27 7847 Humboldt warm grassy slopes near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC206143  Plagiobothrys reticulatus J. P. Tracy 1909-6-13 2989 1/2 Humboldt Blue Lake 30 Comment
  UC582613  Plagiobothrys reticulatus Joseph P. Tracy 1937-6-20 15351 Humboldt ten mi up stream from the mouth Bear River 152 Comment
  OBI20592  Plagiobothrys reticulatus Joseph P. Tracy 1946-5-30 17541 Humboldt Carlotta. By Old Strong's District School House. 5 mi E of town, and at "Riverside Park" 61 Comment
  UC1222211  Plagiobothrys reticulatus Joseph P. Tracy 1942-6-15 17137 Humboldt n side South Fork Eel River (Myers, 10 mi s Dyerville); , Myers Comment
  UC1222216  Plagiobothrys reticulatus Joseph P. Tracy 1946-5-30 17541 Humboldt open flat by old Strong's District School House (5 mi e of town, Carlotta, Riverside Park); Carlotta, Riverside Park 60 Comment
  UC1222215  Plagiobothrys scouleri Joseph P. Tracy 1949-6-20 18322 Humboldt at Cameron Hill on the Kneeland Road Cameron Hill Comment
  JEPS68130  Plagiobothrys tenellus Joseph P. Tracy 1921-4-24 5649 Humboldt Phillipsville, facing South Fork of Eel River Northern Coast Ranges 121 Comment
  UC1196136  Plantago erecta Joseph P. Tracy 1900-6-5 836 Humboldt Busksport Northern Coast Region, Humboldt Bay Region 0 Comment
  UC1196135  Plantago lanceolata Joseph P. Tracy 1901-7-31 1233 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC179952  Plantago lanceolata Joseph P. Tracy 1914-5-30 4484 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC83041  Plantago maritima A. L. Eicher 1985-6-16 Humboldt SW side of the mouth of Mad River Slough 1 Comment
  UC1196131  Plantago maritima var. californica Joseph P. Tracy 1927-6-8 8108 Humboldt Trinidad 30 Comment
  HSC55041  Platanthera dilatata var. leucostachys Gilbert Muth 1979-7-31 11506 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Gasquet 1417 Comment
  SEINET10296821  Platanthera dilatata var. leucostachys Unknown 1933-1 Humboldt Comment
  UC666989  Platanthera leucostachys Joseph P. Tracy 1933-7-25 12842 Humboldt Grouse Mountain 1524 Comment
  HSC53951  Platanthera sparsiflora Griswold, Butler 1979-7-11 7001 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  CAS-BOT-BC91639  Platystemon californicus Tom Craig 1941-6-29 s.n. Humboldt Samoa, near Eureka. Comment
  HSC16799  Platystemon californicus P. N. Slattery 1963-4-27 42 Humboldt Clam Beach Comment
  UC146076  Platystemon californicus Joseph P. Tracy 1904-4-24 2020 Humboldt sand dunes of Ocean Beach Ocean Beach (Humboldt Bay); Northern Coast Region, , Ocean Beach Comment
  HSC69774  Platystemon californicus R. Kalal 1979-5-28 63 Humboldt Along Samoa Blvd. 6 Comment
  JEPS51579  Platystemon californicus W. L. Jepson 1902-6-20 1902 Humboldt Ft. Seward Ranch Ridge 1219 Comment
  JEPS4812  Plectritis brachystemon Joseph P. Tracy 1936-7-5 15037 Humboldt North Coast Ranges, Grouse Mountain Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  CAS-BOT-BC458163  Pleuricospora fimbriolata Doris K. Kildale 1927-7-10 3744 Humboldt Gans Prairie Woods - Bald Hills Road Comment
  UC1103803  Pleuropogon refractus Joseph P. Tracy 1926-5-22 7514 Humboldt Prairie Creek; Northern Coast Ranges, Prairie Creek 152 Comment
  UC1145107  Pleuropogon refractus Joseph P. Tracy 1939-7-9 16334 Humboldt Snow Camp 1402 Comment
  SEINET200845  Poa annua J. P. Tracy 1914-7-5 4548 Humboldt Bald Mtn between High Prairie and Snow Camp 1219 Comment
  HSC97639  Poa bulbosa Cara Witte 2007-5-22 77 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1398 Comment
  UC1132594  Poa bulbosa H. L. Person 1932-5-11 Humboldt near Arcata; Eureka Quadrangle Comment
  UCD90863  Poa compressa Burle J. Jones 1939-6-5 s.n. Humboldt Lolita. Comment
  HSC10676  Poa confinis J. W. Johnson 1962-5-10 1340 Humboldt Arcata, Christenson Farm, Samoa Peninsula. Comment
  HSC10678  Poa confinis J. W. Johnson 1962-4-10 1239 Humboldt Arcata, Christenson Farm, Samoa Peninsula. Comment
  CHSC10126  Poa douglasii J. W. Johnson 1961-8-17 1028 Humboldt On a dune, W.M. Lanphere Farm, Samoa Peninsula. Comment
  UC1145115  Poa douglasii Joseph P. Tracy 1947-7-3 17766 Humboldt mouth of Little River 6 Comment
  SEINET11683183  Poa douglasii K. S. Erdman 1970-1 4801 Humboldt mouth of Ossagon Creek on Gold Beach Rd 2 mi W of US 101 (Redwood N.P.) Comment
  CAS-BOT-BC254280  Poa macrantha Joseph P. Tracy 1933-5-20 12224 Humboldt Cape Mendocino, S of point of the Cape, near ocean shore 30 Comment
  UCD91545  Poa macrantha Freed W. Hoffman 1946-5-21 1719 Humboldt near Eel River. Comment
  UCD91937  Poa pratensis A. Murphy 1951-5-18 s.n. Humboldt W. Roscoe Ranch, Upper Mattole, near Mattole River. Comment
  HSC102627  Poa secunda subsp. secunda M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1612 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC40518  Poa secunda subsp. secunda Thomas W. Nelson, Jane P. Nelson 1976-6-16 2743 Humboldt Just W of Alder Springs. 1524 Comment
  HSC70904  Poa secunda subsp. secunda R. York 1980-5-18 598 Humboldt Near Black Mountain 792 Comment
  UC1145124  Poa secunda subsp. secunda Joseph P. Tracy 1936-5-29 14822 Humboldt French Camp Ridge 1066 Comment
  UC1116249  Pogogyne zizyphoroides Joseph P. Tracy 1946-5-30 17544 Humboldt Carlotta, open flat by old Strong's District School House 5 miles east of town 60 Comment
  UC1222708  Polemonium carneum Joseph P. Tracy 1950-6-8 18736 Humboldt Bear River Ridge 609 Comment
  HSC31205  Polygala californica D. E. Anderson 1972-6-20 5743 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  UC1198993  Polygala californica Joseph P. Tracy 1913-7-20 4377 Humboldt on Redwood Creek near Berry's; Northern Coast Ranges, Redwood Creek 304 Comment
  HSC54552  Polygala cornuta Overton, Butler 1979-7-24 9554 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  HSC98083  Polygala cornuta var. cornuta Cara Witte 2007-7-10 475 Humboldt Horse Mountain Botanical Area. Forest service Road 6N36A. 1334 Comment
  CAS-BOT-BC414301  Polygonum aviculare subsp. neglectum H. M. Pollard 1942-9-12 s.n. Humboldt Near Orleans Comment
  POM312530  Polygonum lapathifolium S. Galen Smith, Malcolm A. Nobs 1949-8-9 1232 Humboldt Marshy pond on Southern side of the town of Blue Lake Comment
  CHSC10117  Polygonum paronychia J. W. Johnson 1962-2-15 1152 Humboldt Arcata. In Hollow 3 South near foot of Dune 3 North, Christenson Farm Samoa Peninsula.. Comment
  HSC45463  Polygonum polygaloides subsp. kelloggii Thomas W. Nelson, Jane P. Nelson 1978-7-2 4391 Humboldt SE of East peak of the Mount Lassic group 1616 Comment
  CDA36030  Polygonum polystachyum R. Robison 2011-6-3 Humboldt Trinidad State Beach, Stagecoach Road 0 Comment
  CDA2925  Polygonum polystachyum T. C. Fuller 1961-9-27 7040 Humboldt Slope of bluff north above mouth of Redwood Creek, 1.5 miles west of Orick. 0 Comment
  UC1225798  Polygonum sachalinense Joseph P. Tracy 1946-8-25 17634 Humboldt roadside 1/2 mi s mouth of Elk River 6 Comment
  RSA139174  Polygonum sachalinense T. C. Fuller 1960-8-25 4973 Humboldt W Hwy 101 0.25 mile N of Humboldt Hill Road, Eureka Comment
  HSC17537  Polygonum spergulariiforme Larry Berti 1968-10-20 Humboldt Along the Van Duzen River Comment
  UC218626  Polypodium Joseph P. Tracy 1918-4-7 4865 Humboldt mouth of Little River; Northern Coast Ranges 15 Comment
  HSC1101  Polypodium californicum Paul Shields Apr 1955 Humboldt 5 mi. N of Arcata Comment
  RSA244982  Polypodium calirhiza D. A. Haskell 1966-4-16 13 Humboldt Coastal strand sand dunes near town of Samoa Comment
  CHSC68484  Polypodium glycyrrhiza Vernon H. Oswald 1997-4-10 8320 Humboldt Road paralleling Hwy. 101 between Clam Beach and Little River State Beach, north of Arcata. 30 Comment
  SEINET200791 Image available Polypodium glycyrrhiza Joseph P. Tracy 1914-5-14 4429 Humboldt Fort Seward 122 Comment
  RSA136736  Polypodium glycyrrhiza I. L. Wiggins 1957-6-20 14134 Humboldt East side of highway, Trinidad Comment
  HSC95649  Polypodium scouleri Andrea Pickart 2002-4-5 40 Humboldt Lanphere Dunes 0 Comment
  POM232318  Polypodium scouleri I. L. Wiggins 1930-7-11 4686 Humboldt Near Samoa Comment
  CAS-BOT-BC72083  Polypodium scouleri Ira L. Wiggins 1957-6-20 14133 Humboldt East side of highway, Trinidad Comment
  UCSB30619  Polypodium scouleri Edwards, David 1974-9-2 Humboldt Ca. 100 ft. up facing slope from dirt road, ca. 100 yds. from its jet. with Fickle Hill Rd 121 Comment
  CAS-BOT-BC233075  Polypogon interruptus Henry M. Pollard 1946-8-10 s.n. Humboldt Roadside, S of Klamath River and E of Perch Creek, Orleans region Comment
  UC1145087  Polypogon maritimus Joseph P. Tracy 1938-7-11 16048 Humboldt near Samoa (sand dunes); on Humboldt Bay, near Samoa 6 Comment
  CHSC10130  Polypogon monspeliensis Jerry Parker 1968-11-22 241 .1 Humboldt Mckinleyville beach, floor of vernal pond. Comment
  UC1145084  Polypogon monspeliensis Joseph P. Tracy 1936-6-8 14872 Humboldt mouth of Luffenholz Creek Trinidad (Trinidad); Coast bluffs at mouth of Luffenholz Creek 9 Comment
  UC39747  Polypogon monspeliensis Harley P. Chandler June 1901 1532 Humboldt Klamath River; North Coast Ranges, Klamath River 426 Comment
  HSC72980  Polystichum imbricans Gail Newton 1980-7-15 1578 Humboldt Near Sims Mtn. 1311 Comment
  HSC76326  Polystichum imbricans Denis Kearns 1981-7-21 296 Humboldt Near Whiteys Peak 1585 Comment
  HSC55154  Polystichum imbricans subsp. imbricans G. L. Clifton, Griswold 1979-8-1 12104 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC98978  Polystichum imbricans subsp. imbricans Cara Witte 2007-5-23 96 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 0.5 mi. south of intersection with 5N04 and 4N32E. 1402 Comment
  SDSU1640  Polystichum munitum Harvey 1938-8-13 2251 Humboldt Redwood Park. Comment
  UC1063666  Polystichum munitum H. L. Person 1932-7-10 Humboldt Lindsay Creek; Eureka Quadrangle Comment
  HSC95887  Polystichum munitum Will Ferrand 2002-4-20 26 Humboldt 9 mi. E of int. of West End Rd. and Warren Cr. Rd. 67 Comment
  UCSB30623  Polystichum munitum Edwards, David 1974-9-2 Humboldt ca. 5ft. E of dirt road, ca. 100 yards from its junction with Fickle Hill Road, Arcata. Comment
  NY42919  Populus balsamifera subsp. trichocarpa J. B. Walker 1995-4-26 1388 Humboldt Six Rivers National Forest, Hwy 36, 2km W of Cobbs 800 Comment
  CAS-BOT-BC102910  Populus trichocarpa Doris K. Kildale 1927-5-13 3131 Humboldt Redwood Creek at Berry's 289 Comment
  UC13488  Potamogeton natans W. C. Blasdale 1896-6-3 Humboldt Blue Lake Comment
  CAS-BOT-BC453766  Potamogeton natans Henry M. Pollard 1945-8-28 s.n. Humboldt Near Orleans. Near Harley place Comment
  HSC36293  Potamogeton nodosus James K. Griswold 1974-5-18 Humboldt Westend Rd., across from Humboldt Flakeboard Comment
  HSC92714  Potamogeton pusillus R. York 1977-10-22 54 Humboldt Behind Fieldbrook School Comment
  HSC18731  Potentilla anserina subsp. pacifica W. A. Heaton 1965-5-17 3 Humboldt 1/2 mi. N of Trinidad on trail near beach Comment
  HSC82396  Potentilla drummondii Thomas W. Nelson 1979-7-11 5010 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  CAS-BOT-BC142025  Potentilla drummondii Doris K. Kildale 1925-8-17 1233 Humboldt Waterdog Lake - Trinity Summit 1828 Comment
  HSC57357  Potentilla gracilis var. fastigiata Overton, Butler 1979-7-26 10053 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  HSC57981  Potentilla gracilis var. fastigiata G. L. Clifton, Griswold 1979-7-31 11711 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC58327  Potentilla gracilis var. fastigiata Overton, Butler 1979-8-2 12625 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  CAS-BOT-BC540159  Potentilla gracilis var. fastigiata Carl B. Wolf 1934-7-2 5859 Humboldt 5.5 mi. from Bald Mt. on road to Snow Camp. 914 Comment
  CAS-BOT-BC540160  Potentilla gracilis var. fastigiata Doris K. Kildale 1925-8-17 1232 Humboldt Trinity Summit - Waterdog Lake 1828 Comment
  UC30037  Potentilla gracilis var. gracilis Chesnut and Drew 1888-8-6 Humboldt Redwood Creek Comment
  HSC100560  Prosartes hookeri Carl C. Marshall Apr 1887 392 Humboldt Hoopa Valley. Comment
  UCSB666  Prosartes smithii Parks, H.; Parks, S. 1952-05 Humboldt Spruce Cove, Trinidad 30 Comment
  SEINET8477185  Prosartes smithii W. Roderick 1967-7-22 s.n. Humboldt Trinidad. 15 Comment
  HSC26841  Prunella vulgaris Thomas W. Nelson 1971-1-8 321 Humboldt Ferndale next to Co. Fair Grounds Comment
  UC1402064  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-7-19 628 -30 Humboldt Comment
  CAS-BOT-BC159830  Prunus avium Henry M. Pollard 1948-7-20 s.n. Humboldt Near Orleans Escape Comment
  HSC56201  Prunus emarginata Gilbert Muth 1979-8-1 12184 Humboldt Near Red Cap Prairie, close to the town of Hoopa 1780 Comment
  JEPS44944  Prunus emarginata Joseph P. Tracy 1917-5-6 4780 Humboldt at Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  JEPS44947  Prunus emarginata Joseph P. Tracy 1923-4-15 6195 Humboldt Hungry Hollow on Bald Mountain Bald Mountain; Northern Coast Ranges, Bald Mountain 762 Comment
  HSC5685  Pseudognaphalium californicum J. P. Tracy 1937-7-11 15415 Humboldt Vicinity of Garberville 122 Comment
  CAS-BOT-BC357271  Pseudognaphalium microcephalum Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  SD148240  Pseudognaphalium stramineum G. K. Helmkamp, E. A. Helmkamp 2001-7-8 7013 Humboldt Samoa Peninsula, 2.6 miles south of California Highway 255, bridge across Humboldt Bay. 14 Comment
  HSC70640  Pseudotsuga menziesii var. menziesii R. York 1980-5-18 593 Humboldt Near Black Mtn. 792 Comment
  UC1222910  Psilocarphus oregonus Joseph P. Tracy 1946-5-30 17542 Humboldt 5 mi e Carlotta (by old Strong's District School House, Riverside Park nearby) 60 Comment
  RSA475262  Pteridium aquilinum var. pubescens Lyman Benson 1928-7-9 408 Humboldt Weott Ranger Station. Seaward N Coast Mtn range, S Fork Eel River. 61 Comment
  SEINET11722268  Pteridium aquilinum var. pubescens C. S. Kaut 2000-1 3 Humboldt Trinidad Comment
  HSC98648  Pterospora andromedea Cara Witte 2007-8-8 624 Humboldt Intersection of National Forest 1 and Forest Service Road 6N38. 1409 Comment
  JEPS58839  Pyrola aphylla Milo S. Baker 1923-7-31 168 Humboldt Booth's Run, North Coast Comment
  UC153970  Pyrola asarifolia J. P. Tracy 1901-6-30 1191 Humboldt Immediate Vicinity of Eureka 0 Comment
  UC32693  Pyrola asarifolia Chestnut and Drew 1888-7-8 Humboldt Kneeland Prairie Comment
  CAS-BOT-BC462806  Pyrola dentata Henry M. Pollard 1943-8-1 s.n. Humboldt Orleans Comment
  HSC41317  Pyrola picta Brad Klipfel 1974-9-2 535 Humboldt Horse Mtn. Comment
  UC412733  Pyrola picta Harley P. Chandler Jun 1901 1524 Humboldt Klamath River 457 Comment
  HSC98038  Pyrola picta Cara Witte 2007-7-17 532 Humboldt National Forest 1. 2 miles south from intersection with 5N27. 1456 Comment
  HSC54661  Quercus chrysolepis Overton, Butler 1979-7-25 9887 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  HSC8106  Quercus chrysolepis D. E. Anderson 1961-9-30 1840 Humboldt Blue Lake 793 Comment
  HSC98830  Quercus chrysolepis Cara Witte 2008-7-10 866 Humboldt Forest Service Road 4N06A. Cow Creek Ridge. 1 mile east of National Forest 1. Under powerlines. 1254 Comment
  HSC99029  Quercus chrysolepis Cara Witte 2008-7-14 891 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. At end of the road. 1407 Comment
  UC1193294  Quercus chrysolepis R. H. Neuns 1950-10-12 140 Humboldt Queens Peak 701 Comment
  CAS-BOT-BC105164  Quercus kelloggii Doris K. Kildale 1927-5-1 3120 Humboldt Blochsburg 518 Comment
  UCD165088  Quercus parvula var. shrevei Lois W. Weeth; Kerry Heise and John M. Tucker 2003-10-21 s.n. Humboldt 21.1 mi. from Garberville along Alderpoint Rd. 107 Comment
  UC1225942  Quercus sadleriana Joseph P. Tracy 1947-8-24 17909 Humboldt near Box Camp; Trinity Summit 1524 Comment
  UCD47241  Quercus sadleriana Milo S. Baker 1947-8-10 11896 Humboldt 16 mi N.E. of Hooba along trail towards Trinity Summit from end of forest Rd. 1463 Comment
  HSC26634  Ranunculus alismifolius var. alismifolius Thomas W. Nelson 1971-5-31 452 Humboldt Vernal pond Comment
  UC594250  Ranunculus aquatilis var. hispidulus C. C. and S. K. Harris 1936-6-12 3363 Humboldt near Bridgeville; Chalk Mountain Comment
  CAS-BOT-BC378852  Ranunculus californicus var. californicus Doris K. Kildale 1926-3-20 1549 Humboldt Near mouth of Little River Comment
  JEPS5884  Ranunculus flammula Joseph P. Tracy 1937-7-17 15436 Humboldt Eureka 45 Comment
  UC552300  Ranunculus flammula Joseph P. Tracy 1934-7-13 13390 Humboldt Dow's Prairie 60 Comment
  HSC30324  Ranunculus occidentalis var. occidentalis Dale R. Gradek 1974-4-16 11 Humboldt 7 mi. E of Blue Lake on rd. adjacent to Hwy. 299 305 Comment
  SEINET180820  Ranunculus occidentalis var. rattanii Bassett Maguire, R Maguire; C. B. Maguire 1934-6-9 15179 Humboldt Clam Beach 15 mi N of Eureka Comment
  HSC32043  Ranunculus parviflorus J. D. Ackerman 1974-6-12 317 Humboldt 1 mi. N of Manila between Mad River Slough and sand dunes Comment
  HSC18186  Ranunculus repens var. repens R. D. Modafferi 1965-5-9 55 Humboldt 2.2 mi. N of Trinidad on Trinity St. 305 Comment
  UC162816  Ranunculus uncinatus J. P. Tracy 1910-5-8 3133 Humboldt Immediate vicinity of Eureka 0 Comment
  HSC18195  Ranunculus uncinatus var. parviflorus E. W. Styskel 1963-5-19 40 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. 305 Comment
  POM244261  Rhamnus californica Carl B. Wolf 1931-8-31 2381 Humboldt Near mouth of S Fork of Trinity River, on road to sandy bar swimming hole. 244 Comment
  POM283042  Rhamnus californica Lyman Benson 1928-7-12 465 Humboldt Weott Ranger Station. 61 Comment
  UC1197994  Rhamnus californica Joseph P. Tracy 1934-7-9 13357 Humboldt Dobbyn Creek 152 Comment
  UC1197997  Rhamnus californica Joseph P. Tracy 1934-8-4 13555 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC709447  Rhamnus californica subsp. occidentalis Joseph P. Tracy 1941-9-4 17012 Humboldt along Trinity Highway Willow Creek Canyon 609 Comment
  RSA698603  Rhamnus purshiana J. R. Bruff 1937-8-17 926 Humboldt Richardson Grove. Comment
  CAS-BOT-BC58192  Rhododendron columbianum Doris K. Kildale 1927-6-26 3593 Humboldt Patick's Point. Comment
  HSC37364  Rhododendron macrophyllum Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 496 Humboldt Along Lost Man Creek. 38 Comment
  HSC76365  Rhododendron macrophyllum Denis Kearns 1981-7-6 66 Humboldt Near Mosquito Lake 1256 Comment
Read comments
Jul 30 2014
  SDSU3418  Rhododendron macrophyllum D. F. Howe 1963-5-26 3552 Humboldt 3.2 miles east of Orick and Bald Hill road. 457 Comment
  CAS-BOT-BC433134  Ribes Doris K. Kildale; L. B. Kildale 1930-5-12 9562 Humboldt McClellan Hill near Bridgeville 609 Comment
  CAS-BOT-BC433141  Ribes W. R. Dudley 1899-1-1 s.n. Humboldt Possibly South of Arcata Comment
  HSC101979  Ribes binominatum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 876 Humboldt Patterson Meadows 1566 Comment
  UC1541338  Ribes divaricatum var. pubiflorum Parks and Parks 1932-4-10 Humboldt Blue Slide Van Duzen River Comment
  RSA0025005  Ribes divaricatum var. pubiflorum L. R. Abrams 1922-6-25 8248 Humboldt Near South Bay. Comment
  UC154117  Ribes laxiflorum J. P. Tracy 1909-4-18 2951 Humboldt immediate vicinity Eureka 0 Comment
  HSC97215  Ribes marshallii M. Mesler 2007-6-25 765 Humboldt Trail to Mill Creek Lakes 1585 Comment
  CAS-BOT-BC206031  Ribes menziesii L. R. Abrams; R. Bacigalupi 1922-6-25 8289 Humboldt North of Big Lagoon near Orick Comment
  CAS-BOT-BC206044  Ribes menziesii Doris K. Kildale 1928-2-19 4272 Humboldt Patrick's Point Comment
  HSC79481  Ribes menziesii Kenneth Clark 1980-3-27 559 Humboldt N fork of Dead Man's Gulch 82 Comment
  UC552232  Ribes menziesii Joseph P. Tracy 1934-8-11 13565 Humboldt 2 mi e Arcata (Fickle Hill); North Coast Ranges 304 Comment
  UC552244  Ribes menziesii Joseph P. Tracy 1934-8-11 13565 Humboldt 2 mi e Arcata (Fickle Hill); North Coast Ranges 304 Comment
  HSC102092  Ribes nevadense M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 995 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC71034  Ribes roezlii Thomas W. Nelson 1977-4-20 3326 Humboldt Along FS Rd. 1N15 at bridge over Mad River 762 Comment
  RSA0024750  Ribes roezlii J. R. Bruff 1937-8-17 937 Humboldt Richardson Grove, bed of Eel River. Comment
  HSC57037  Ribes sanguineum Overton, Butler 1979-7-24 9674 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UCD22651  Ribes sanguineum Karen Seaman 1983-5-1 14 Humboldt On Kneeland Road, 1 mile S.E. of Kneeland Airport on roadside. 701 Comment
  CAS-BOT-BC144683  Ribes sanguineum var. glutinosum Ira L. Wiggins 1930-6-25 4617 Humboldt Sand dunes 2 miles north of Samoa Comment
  CAS-BOT-BC144695  Ribes sanguineum var. glutinosum H. E. McMinn 1922-8-4 340 Humboldt along Van Dusen River Comment
  HSC44194  Ribes viscosissimum Thomas W. Nelson, Jane P. Nelson 1977-6-19 3489 Humboldt Along W side of road to Goat Hill 1616 Comment
  UC1198918  Ribes viscosissimum Joseph P. Tracy 1932-7-15 10606 Humboldt ridges e Corral Prairie; Klamath Mountains, Trinity Summit 1828 Comment
  UC906678  Romanzoffia californica Joseph P. Tracy 1943-5-9 17423 Humboldt along Trinity Hwy. Willow Creek Canyon (rock bluffs near Ruby Creek) 609 Comment
  CAS-BOT-BC222678  Romanzoffia tracyi Lincoln Constance; Alan A. Beetle; Joseph P. Tracy 1940-5-18 2619 Humboldt North of Trinidad 30 Comment
  HSC26449  Romanzoffia tracyi T. O. Osborne 1970-4-8 9 Humboldt Sugarloaf Rock, Cape Mendocino 76 Comment
  UC1199218  Rorippa curvisiliqua Joseph P. Tracy 1937-7-17 15437 Humboldt Eureka 45 Comment
  UC562691  Rorippa nasturtium-aquaticum Joseph P. Tracy 1935-5-25 13862 Humboldt Fort Seward 106 Comment
  UC180209  Rosa eglanteria Joseph P. Tracy 1914-6-14 4508 Humboldt near Hydesville; Northern Coast Region 60 Comment
  POM117575  Rosa gymnocarpa Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  SBBG3090  Rosa nutkana M. J. Cody 1938-7-14 Humboldt 2 mi N of Trinidad Comment
  UC1199022  Rosa nutkana var. nutkana J. P. Tracy 1901-6-23 1163 Humboldt immediate vicinity of Eureka 0 Comment
  UC303027  Rosa nutkana var. nutkana Joseph P. Tracy 1923-10-28 6591 Humboldt Angels Ranch North Coast Ranges, Bald Mt. 457 Comment
  CAS-BOT-BC146884  Rosa rubiginosa Doris K. Kildale 1927-7-1 3616 Humboldt Alton Hill 30 Comment
  RSA244511  Rubus discolor Larry E. DeBuhr, Gary D. Wallace 1973-9-16 s.n. Humboldt Near entrance of Prairie Creek Redwoods State Park Comment
  SDSU9245  Rubus discolor D. F. Howe 1961-7-31 3099 Humboldt 37.7 miles south of Eureka on #101. 30 Comment
  UC492165  Rubus lasiococcus Joseph P. Tracy Jul 16 1930-Jul 19 1930 9021 Humboldt near McKay Camp (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC148385  Rubus leucodermis Doris K. Kildale 1927-5-13 3138 Humboldt Redwood Creek at Berry's 289 Comment
  CAS-BOT-BC148388  Rubus leucodermis L. R. Abrams 1918-6-16 7144 Humboldt Willow Creek Comment
  HSC73352  Rubus leucodermis M. A. Baker 1980-6-7 1861 Humboldt Near Ammon Creek 732 Comment
  HSC95871  Rubus parviflorus Will Ferrand 2001-6-17 16 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  SEINET5320889  Rubus parviflorus A. T. Leiser 1980-7-9 Humboldt North of Orick; North of Orick, Highway 101 reroute, near Redwood Park Comment
  POM117571  Rubus parviflorus var. velutinus Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  UC1199046  Rubus spectabilis Joseph P. Tracy 1931-4-12 9333 Humboldt near Blue Lake (Mad River (at Essex)); Northern Coast Region, Mad River 15 Comment
  SEINET11910601  Rubus spectabilis F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -178 Humboldt ca 8 mi N of Trinidad on US 101 near Patricks Point State Park 6 Comment
  BLMAR234  Rubus ursinus Jennifer Anthony-Wheeler 1996-9-26 234 Humboldt King range, growing at base of N bank of S fork bear creekbed 548 Comment
  HSC31460  Rubus ursinus Steve Selva, Roger Jensen 1974-8-28 90 Humboldt Approx. 10 mi. S of Arcata on the sand dunes of the Samoa Peninsula Comment
  HSC70847  Rubus ursinus M. A. Baker 1980-6-7 1829 Humboldt Near Ammon Creek 732 Comment
  UC154260  Rubus ursinus J. P. Tracy 1909-4-18 2952 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  UCD113990  Rubus ursinus Linda M. Barker 1976-6-1 1565 Humboldt 3 miles west of Arcata. Comment
  SEINET5710905  Rudbeckia occidentalis Lowell E. Urbatsch, Patricia B. Cox; Alan W. Lievens 1988-1 6104 Humboldt From California 299 at Hawkins Bar (In Trinity County), turn onto the road to Denny and travel 1.7 miles down this road toa fork in the road. Take the lefthand road (leading to Waterman Ridge, Zeigler Point) and travel 6.7 miles down this road to antoher fork in the road. Take the right fork (away from thr road leading to Waterman Ridge and Willow Creek). On the road (7NO4), travel 1.5 miles to another fork; continue on 7NO4 (the left fork) for 7.4 miles. At this point, take 7 NO4N, the road to Groves Prairie. The collection site is a short distance up the road.; Groves Prairie Comment
  HSC44478  Rumex acetosella Brad Klipfel 1973-7-15 194 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CAS-BOT-BC421747  Rumex conglomeratus Henry M. Pollard 1945-8-24 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon Comment
  HSC60366  Rumex crispus Terry Roth 1979-5-26 87 Humboldt Near jct. of Sunset Ave. and H St., Arcata Comment
  JEPS39867  Rumex obtusifolius Milo S. Baker 1923-8-4 181 Humboldt s of Stone Lagoon Comment
  UC672927  Rumex occidentalis Joseph P. Tracy 1936-6-3 14854 Humboldt near Lack Pond; Trinity River Valley, Willow Creek 152 Comment
  UC672921  Rumex salicifolius var. transitorius Joseph P. Tracy 1936-6-3 14855 Humboldt Willow Creek Trinity River Valley 152 Comment
  SEINET6933889  Rupertia physodes Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Dald Hills, southeast of Orick. Comment
  HSC59504  Ruppia maritima M. A. Erickson 1979-5-23 305 Humboldt Arcata, creek adjacent to an abandoned logging pond at the S end of H St., Arcata Comment
  POM151674  Sagina decumbens subsp. occidentalis Joseph P. Tracy 1905-4-30 2172 Humboldt Sand Dunes of Ocean Beach at Humboldt Bay. Comment
  POM318824  Salicornia Patricia Wilder 1968-8-21 4416 Humboldt Northern Coastal arm of Humboldt Bay, NW of Samoa, on E side of train tracks. 3 Comment
  CAS-BOT-BC132667  Salix A. T. Whittemore 1980-3-15 80 -001 Humboldt Arcata, in residential area, along Alliance Road from Foster Ave. to the railroad tracks Comment
  UC1196671  Salix eastwoodiae Joseph P. Tracy 1935-7-26 14268 Humboldt meadows at Water Dog Lakes; Trinity Summit 1828 Comment
  CAS-BOT-BC103806  Salix exigua L. R. Abrams 1916-7-11 6057 Humboldt mouth of Grizzly Creek on Van Duzen River in Redwood Forest Comment
  CAS-BOT-BC104094  Salix hindsiana Harold E. Parks; Joseph P. Tracy 1931-5-17 0969 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC104103  Salix hindsiana Harold E. Parks 1931-5-14 0958 Humboldt Fernbridge, Eel River 10 Comment
  CAS-BOT-BC106854  Salix hookeriana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-11 01212 Humboldt 1 mile north of Samoa Comment
  CAS-BOT-BC107677  Salix hookeriana John Johnson 1962-3-15 1132 Humboldt Lamphere Ranch, about 4 miles west of Arcata. Sand dune formation along beach Comment
  CAS-BOT-BC107729  Salix hookeriana Harold E. Parks 1931-3-24 912 Humboldt Eel River, Fortuna 10 Comment
  CAS-BOT-BC107742  Salix hookeriana Joseph P. Tracy 1936-10-24 15202 Humboldt Fortuna 15 Comment
  CAS-BOT-BC107759  Salix hookeriana Harold E. Parks 1931-5-28 01000 Humboldt Little River Lagoon Comment
  CAS-BOT-BC107760  Salix hookeriana Harold E. Parks 1931-5-28 0999 Humboldt Little River Lagoon Comment
  CAS-BOT-BC107770  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1225 Humboldt In pine barrens near the coast, 1 mile north of Samoa. Comment
  CHSC96697  Salix hookeriana Gordon Leppig 1999-4-15 1118 Humboldt Big Lagoon County Park, Big Lagoon Bog. On western edge of fen. NAD 27 UTM Zone 10, 405321E, 4557202N. 3 Comment
  HSC19966  Salix hookeriana J. P. Tracy, H. E. Parks Apr 1923 7923 Humboldt Little River Lagoon Comment
  HSC20072  Salix hookeriana H. E. Parks, S. T. Parks 1932-4-12 1112 Humboldt Blue Slide, Van Duzen River Comment
  HSC38176  Salix hookeriana Thomas W. Nelson 1976-3-5 3286 Humboldt Beside Martin's Slough just upstream from Eureka Muni Golf Course Comment
  POM362591  Salix hookeriana H. E. Parks 1931-3-24 914 Humboldt Fortuna. Eel River. 10 Comment
  SD938  Salix hookeriana Harold E. Parks 1931-5-28 1000 Humboldt Little River Lagoon 0 Comment
  UC1196675  Salix hookeriana Joseph P. Tracy 1931-3-26 9305 Humboldt near Alton; Northern Coast Ranges, Van Duzen River 30 Comment
  UC1196676  Salix hookeriana Joseph P. Tracy 1931-3-26 9304 Humboldt near Alton; Northern Coast Ranges, Van Duzen River 30 Comment
  UC1225773  Salix hookeriana Joseph P. Tracy 1948-4-4 17960 Humboldt sand dunes near Samoa; Humboldt Bay 6 Comment
  UC1225926  Salix hookeriana Joseph P. Tracy 1947-6-28 17754 Humboldt Bridgeville Van Duzen River 198 Comment
  UC176702  Salix hookeriana Joseph P. Tracy 1913-9-21 4414 Humboldt Humboldt Bay Northern Coast Region (ocean beach) Comment
  UC275500  Salix hookeriana Joseph P. Tracy 1925-2-1 6930 Humboldt lowlands near Salmon Creek Corners (around Humboldt Bay); Northern Coast Region, Humboldt Bay 6 Comment
  UC469124  Salix hookeriana Joseph P. Tracy 1929-4-7 8531 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC470405  Salix hookeriana Joseph P. Tracy 1931-8-9 9609 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R. 91 Comment
  UC481279  Salix hookeriana Harold E. Parks 1931-8-1 1053 Humboldt Little River Lagoon Comment
  UC512120  Salix hookeriana Harold E. Parks and Joseph P. Tracy 1933-3-19 11005 Humboldt 2 mi w Bridgeville; Van Duzen River 228 Comment
  UC518899  Salix hookeriana Jim Davis 1933-4-25 4 Humboldt around Eureka Comment
  UC519335  Salix hookeriana Joseph P. Tracy 1933-10-15 13093 Humboldt near Miranda (along S. Fork Eel R.); North Coast Ranges, S. Fork Eel R. 91 Comment
  LA208815  Salix lasiandra Harold E. Parks; 1931-3-24 911 Humboldt Fortuna, on banks of Eel River 10.0 Comment
  UC490524  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1932-4-17 9797 Humboldt Alton to Fortuna (Eel R.); Northern Coast Region, Eel R. 15 Comment
  CAS-BOT-BC128192  Salix lasiandra var. lasiandra Harold E. Parks; Susan T. Parks 1932-5-12 1150 Humboldt In swamp near bridge at mouth of Maple Creek, Big Lagoon Comment
  SD1004  Salix lasiandra var. lasiandra Harold E. Parks, Joseph P. Tracy 1931-5-17 966 Humboldt Mouth of Willow Creek at Trinity River 149 Comment
  CAS-BOT-BC107019  Salix lasiolepis Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01233 Humboldt On floodplain of the Van Duzen River, 1 1/2 miles east of Alton 30 Comment
  CAS-BOT-BC107592  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-17 1329 Humboldt In dry ravines on west slope of Berry's Mountain, east of Redwood Creek, on Trinity Highway 762 Comment
  HSC20011  Salix lasiolepis J. P. Tracy 1933-5-14 12184 Humboldt Berry's Mt. on Trinity Hwy. 762 Comment
  JEPS12910  Salix lasiolepis Joseph P. Tracy 1927-3-27 7870 Humboldt Redwood Creek at Berry's; Northern Coast Ranges 274 Comment
  LA208774  Salix lasiolepis Harold E. Parks; 1931-5-14 963 Humboldt Van Duzen River between Alton and Carlotta 15.0 Comment
  POM161056  Salix lasiolepis Joseph P. Tracy 1926-9-19 7804 Humboldt Valley of S Yager Creek 762 Comment
  UC1196611  Salix lasiolepis Joseph P. Tracy 1926-8-12 7762 Humboldt Redwood Creek, at Berry's 274 Comment
  UC1196615  Salix lasiolepis Joseph P. Tracy 1933-5-19 12202 Humboldt Alton to Fortuna (Eel R.); Northern Coast Region, Eel R. 15 Comment
  UC1196616  Salix lasiolepis Joseph P. Tracy 1934-3-4 13143 Humboldt Miranda South Fork of Eel River 121 Comment
  UC1196624  Salix lasiolepis Joseph P. Tracy 1933-4-2 10962 Humboldt on Trinity Hwy e Redwood Creek; Northern Coast Ranges, Berry's Mt. 762 Comment
  UC1196627  Salix lasiolepis Joseph P. Tracy 1935-5-25 13890 Humboldt North Dobbyn Creek Dobbyn Creek 152 Comment
  UC469425  Salix lasiolepis Joseph P. Tracy 1931-3-31 9328 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC469430  Salix lasiolepis Joseph P. Tracy 1931-9-7 9645 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC469432  Salix lasiolepis Joseph P. Tracy 1931-10-3 9701 Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  UC481181  Salix lasiolepis Harold E. Parks 1931-8-25 1059 Humboldt on Van Duzen R. Blue Slide; Van Duzen R., Blue Slide 90 Comment
  UC490464  Salix lasiolepis Joseph P. Tracy 1932-9-5 10766 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC506378  Salix lasiolepis Joseph P. Tracy 1932-10-2 10858 Humboldt near Bair's; Northern Coast Ranges, Redwood Creek 213 Comment
  UC506507  Salix lasiolepis Joseph P. Tracy 1932-6-4 10126 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  UC54677  Salix lasiolepis J. P. Tracy 1901-4-7 1011 Humboldt Immediate vicinity of Eureka 0 Comment
  HSC20004  Salix lasiolepis J. P. Tracy 1932-6-19 10243 Humboldt North Coast Ranges; Buck Mountain, lower foothills of its northwest slope 762 Comment
  CHSC9645  Salix lucida subsp. lasiandra E. L. Smith 1971-8-17 1016 Humboldt On the Van Duzen River ca. 18 mi s of Eureka. Comment
  SBBG29044  Salix lucida subsp. lasiandra H. E. Parks 1931-3-24 911 Humboldt banks of Eel River, Fortuna 10 Comment
  JEPS12970  Salix melanopsis Joseph P. Tracy 1931-9-19 9682 Humboldt Van Duzen River Alton; Northern Coast Region 30 Comment
  SD975  Salix melanopsis Harold E. Parks, Joseph P. Tracy 1931-5-17 967 Humboldt Mouth of Willow Creek at Trinity River, sandbars 149 Comment
  UC470457  Salix melanopsis Joseph P. Tracy 1931-9-7 9647 Humboldt Trinity R. Valley at Willow Creek; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  UC481169  Salix melanopsis Harold E. Parks 1931-8-25 1061 Humboldt Van Duzen R. Blue Slide; , Blue Slide 90 Comment
  UC481289 Image available Salix melanopsis Harold E. Parks 1931-5-14 962 Humboldt between Alton and Carlotta; Van Duzen River; Van Duzen River, Humboldt Co. 15 Comment
  UC481311  Salix melanopsis Harold E. Parks and Joseph P. Tracy 1931-5-17 974 Humboldt mouth of Willow Creek at Trinity R.; Willow Creek 150 Comment
  CAS-BOT-BC129133  Salix scouleriana Harold E. Parks 1931-5-12 951 Humboldt Bishop Pine Lodge, Trinidad 150 Comment
  CAS-BOT-BC129153  Salix scouleriana Doris K. Kildale 1925-12-22 1438 Humboldt Eureka, vacant lot Comment
  HSC20080  Salix scouleriana C. R. Ball, H. E. Parks, J. P. Tracy 1932-5-11 1219 Humboldt 1 mi. N of Samoa, near coast 0 Comment
  UC519353  Salix scouleriana Joseph P. Tracy 1933-8-30 13056 Humboldt Grouse Mt. North Coast Ranges, Grouse Mt. 1524 Comment
  CAS-BOT-BC128951  Salix sitchensis L. R. Abrams 1916-7-11 6047 Humboldt In river gravel, mouth of Grizzly Creek on Van Duzen River Comment
  CAS-BOT-BC128956  Salix sitchensis Harold E. Parks 1931-3-25 903 Humboldt Orick, Redwood Creek [Van Duzen River] 6 Comment
  HSC75494  Salix sitchensis J. O. Sawyer 1980-7-18 3636 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC469468  Salix sitchensis Joseph P. Tracy 1931-11-8 9748 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC481380  Salix sitchensis Harold E. Parks 1931-3-26 907 Humboldt on Van Duzen R. Alton; Van Duzen R., Blue Slide 15 Comment
  UC481382  Salix sitchensis Harold E. Parks 1931-3-26 906 Humboldt on Van Duzen R. Alton; Van Duzen R., Alton 15 Comment
  UC511968  Salix sitchensis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-13 1256 Humboldt 2 mi. e. of Redwood Hwy. and above Blue Lake Rd. (floodplain of Mad R.); Mad R., Engelhart gravel pit Comment
  UC504018  Salix tracyi C. R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1244 Humboldt Van Duzen River at Blue Slide 91 Comment
  HSC58321  Sambucus nigra subsp. caerulea Overton, Butler 1979-8-2 12616 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC73873  Sambucus nigra subsp. caerulea M. A. Baker 1980-7-19 3020 Humboldt Near Bret Hole. 1814 Comment
  HSC31462  Sambucus racemosa var. racemosa Steve Selva, Roger Jensen 1974-8-28 99 Humboldt Behind Humboldt State University, Arcata. Comment
  UCD137261  Sambucus racemosa var. racemosa Joseph P. Tracy 1947-8-24 17912 Humboldt Trinity Summit, east of Box Camp. 1676 Comment
  CAS-BOT-BC157199  Sanguisorba officinalis Carl B. Wolf 1934-7-2 5901 Humboldt Snow Camp (mts. E. of Korbel), near small lake 1371 Comment
  HSC21611  Sanicula arctopoides R. D. Modafferi 1965-3-13 16 Humboldt 1 mi. N of Trinidad on Trinity St. 305 Comment
  HSC77511  Sanicula arctopoides K. Berg 1984-4-8 519 Humboldt Centerville Beach, about 0.5 mi. N of County Park parking lot Comment
  UC154104  Sanicula arctopoides Joseph P. Tracy 1904-4-24 2021 1/2 Humboldt Ocean Beach at Humboldt Bay Ocean Beach; Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  HSC39444  Sanicula crassicaulis Linda M. Barker 1976-6-1 1540 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC74740  Sanicula crassicaulis Gail Newton 1981-8-5 2361 Humboldt Near Bug Creek, E Fork. 820 Comment
  UC1022528  Sanicula crassicaulis C. Ritchie Bell 1952-5-14 3 X456 Humboldt Patrick Point State Park Comment
  UC1022533  Sanicula crassicaulis C. Ritchie Bell 1952-5-3 1326 Humboldt near Cobbs (along Mad River); Mad River Comment
  UC791070  Sanicula laciniata Joseph P. Tracy 1948-5-31 18018 Humboldt Alder Point 152 Comment
  UC1197088  Sanicula laciniata Joseph P. Tracy 1936-3-8 14776 Humboldt along South Fork of Eel River, Miranda South Fork Eel River; , Miranda 121 Comment
  HSC81660  Sanicula tracyi Thomas W. Nelson, Jane P. Nelson 1980-7-13 6064 Humboldt Along the road from Dinsmore to Anderson Ford-McKeown Ranch Rd. 762 Comment
  JEPS98672  Sanicula tracyi M. Garcia, O. Gomez, C. Martin and P. Vargas 1996-5-25 32 -96 Humboldt Dismore, ca. 3 mi on Buck Mountain road from the junction with the main road Comment
  UC647525  Sanicula tracyi Joseph P. Tracy 1939-5-14 16284 Humboldt Buck Mountain 914 Comment
  HSC31438  Sarcodes sanguinea D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5556 Humboldt Westward lower slopes of Black Lassic near Trinity Co. line. 1585 Comment
  HSC93525  Schoenoplectus pungens Gordon Leppig 1998-6-25 855 Humboldt McKinleyville, Mad River Estuary at end of Murray Rd. 0 Comment
  JEPS95079  Schoenoplectus pungens var. badius Vernon Oswald and Lowell Ahart 1997-9-4 8848 Humboldt Big Lagoon County Park, at sw edge of Big Lagoon, entering lagoon at boat ramp Big Lagoon; North Coast Region, Big Lagoon County Park, Big Lagoon 3 Comment
  CDA39126  Scirpus maritimus Gordon Leppig 1998-6-25 851 Humboldt Route 101, mile marker 81.60 Comment
  RSA0009468  Scirpus microcarpus Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  UCSC000121  Scirpus paludosus H. L. Person 1932-5-11 s.n. Humboldt near Arcata - Eureka Comment
  UC668005  Scirpus tabernaemontani H. E. Parks and Joseph P. Tracy 1931-5-17 9421 Humboldt Lack Pond Trinity River Valley, Lack Pond (opposite Willow Creek) 152 Comment
  CHSC114022  Scoliopus bigelovii Richard R. Halse 2013-3-28 8766 Humboldt Along U.S. Hwy. 101 ca. 2.2 miles south of Exit 671 to Pepperwood. 76 Comment
  UC249514  Scoliopus bigelovii Joseph P. Tracy 1922-5-14 6049 Humboldt Kneeland Prairie 762 Comment
  UC709438  Scoliopus bigelovii Joseph P. Tracy 1941-4-26 16862 Humboldt Kneeland Prairie 762 Comment
  UC275518  Scoliopus bigelovii Joseph P. Tracy 1923-4-25 6144 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  UC1011943  Scrophularia californica Francis W. Pennell 1940-7-6 26080 a Humboldt 2 mi nw Pepperwood (along Eel River, Rte 101) 30 Comment
  JEPS62921  Scutellaria antirrhinoides Joseph P. Tracy 1930-6-15 8763 Humboldt Dobbyn Creek 152 Comment
  UC1239697  Scutellaria antirrhinoides Joseph P. Tracy 1934-6-19 13238 Humboldt Carlotta; Northern Coast Ranges, Carlotta 60 Comment
  UC1239705  Scutellaria antirrhinoides Joseph P. Tracy 1927-7-24 8296 Humboldt Mattole Valley 152 Comment
  UC1239701  Scutellaria californica Joseph P. Tracy 1942-7-1 17363 Humboldt opposite Buck Mountain (along the Van Duzen River, Dinsmore's); Van Duzen River, Dinsmore's 762 Comment
  UC577314  Scutellaria californica Joseph P. Tracy 1937-7-19 15453 Humboldt Buck Mountain 914 Comment
  UC1222178  Sedum divergens Joseph P. Tracy 1935-7-24 14199 Humboldt near Ranger Station (Trinity Summit); , near Ranger Station 1828 Comment
  HSC99057  Sedum laxum subsp. flavidum Cara Witte 2008-7-11 873 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  HSC49578  Sedum obtusatum subsp. retusum Brad Klipfel 1975-6-17 690 Humboldt Horse Mtn. Comment
  HSC28237  Sedum spathulifolium var. pruinosum Clifton Raymond Chesbrough 1973-6-19 100 Humboldt 0.5 mi. N of College Cove along coast Comment
  HSC63239  Sedum spathulifolium var. spathulifolium M. A. Baker 1979-6-7 801 Humboldt Hwy. 299, 3 km N of Berry Summit Comment
  HSC6475  Sedum spathulifolium var. spathulifolium Lincoln Constance 1934-6-1 767 Humboldt S Fork Eel River, Bull Creek Rd. between Dyerville Bridge and Bull Creek Flat Grove. 46 Comment
  HSC6479  Sedum spathulifolium var. spathulifolium Francis Winter 1960-5-7 Humboldt 4 mi. S of Hoopa Indian Reservation, on Hoopa-Willow Creek Rd. 152 Comment
  UCD135986  Selaginella kraussiana Frederic Hrusa; R. Bencie, L. Bencie, C. and E. Dogwin 2010-12-29 18277 Humboldt Forest E of Humboldt St. University; above Fern Lake. 47 Comment
  CAS-BOT-BC364019  Senecio integerrimus var. major Doris Kildale 1931-5-10 10583 Humboldt Snow Camp Comment
  HSC6120  Senecio integerrimus var. major D. E. Anderson 1965-5-1 3571 Humboldt Along Bluff Creek road about 2.5 mi. from its junction with Hwy. 96 Comment
  CDA7632  Senecio jacobaea E. Eberwein 1958-9-4 Humboldt William Lowry property, Bear River, Ferndale. 0 Comment
  UC1223152  Senecio sylvaticus Joseph P. Tracy 1948-8-8 18087 Humboldt Iaqua School House Comment
  CAS-BOT-BC364330  Senecio triangularis Joseph P. Tracy 1932-7-13 10523 Humboldt Trinity Summit. Corral Prairie 1584 Comment
  HSC57152  Senecio triangularis Overton, Butler 1979-7-26 9948 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek. 1326 Comment
  HSC57636  Senecio triangularis G. L. Clifton, Griswold 10794 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon 1814 Comment
  HSC58000  Senecio triangularis G. L. Clifton, Griswold 1979-7-31 11780 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC180178  Senecio triangularis Joseph P. Tracy 1914-7-4 4539 Humboldt High Prairie on Bald Mountain; Northern Coast Ranges, High Prairie on Bald Mountain 1066 Comment
  CHSC61945  Sequoia sempervirens J. R. Biddison 1993-4-6 10 Humboldt Prairie Creek Redwoods State Park, Fern Canyon picnic area, 10 mi n of Orick, off hwy 101. 15 Comment
  CHSC74935  Sequoia sempervirens Ronald J. Mastrogiuseppe 1966-11-1 Humboldt Humboldt Redwoods State Park. On the flood plain of the Founder's Grove. Comment
  JEPS48272  Sequoia sempervirens Joseph P. Tracy 1940-10-17 16770 Humboldt Dyerville 48 Comment
  NY64506  Sequoia sempervirens A. Kellogg 1868-1 940 Humboldt Humboldt Comment
  RSA175208  Sequoia sempervirens Robert F. Thorne 1957-9-2 18996 Humboldt Burlington State Park, just S of Weott. Comment
  UC212874  Setaria pumila Joseph P. Tracy 1919-9-13 5193 Humboldt Trinity R. Valley near Willow Creek; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UCD92863  Setaria viridis A. H. Murphy 1948-9-1 s.n. Humboldt Cottral Ranch, Table Bluff. Comment
  HSC26836  Sherardia arvensis Thomas W. Nelson 1970-12-5 320 Humboldt Near Azalea Park Reserve, McKinelyville Comment
  UC170180  Sidalcea asprella subsp. nana Harley P. Chandler June, 1901 1466 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  RSA168963  Sidalcea malachroides Joseph P. Tracy 1950-7-12 19034 Humboldt Butter Valley Road, 2 miles east of Cameron Hill jct. near Kneeland. Comment
  RSA75596  Sidalcea malachroides Albert M. Vollmer, B. Beane 1951-6-11 s.n. Humboldt Yager Creek road, on way to Carlotta Comment
  UC1121977  Sidalcea malachroides R. Stahelin 1933-5-15 19520 Humboldt T. P. L. Co. Eureka Quad. (Freshwater) Comment
  CAS-BOT-BC205569  Sidalcea malachroides Volney Rattan 1878-1-1 s.n. Humboldt Redwood Cr. Comment
  UC668144  Sidalcea malviflora subsp. asprella Joseph P. Tracy 1936-8-2 15062 Humboldt French Camp Ridge 1066 Comment
  UC902192  Sidalcea malviflora subsp. patula Joseph P. Tracy 1949-7-7 18331 Humboldt Table Bluff ridge 91 Comment
  HSC104350  Sidalcea malviflora subsp. patula James Regan, Humboldt Redwood Co., LLC 19 Humboldt Kneeland 854 Comment
  UC14437  Silene antirrhina Chestnut and Drew 1888-7-9 Humboldt Kneeland Comment
  HSC103725  Silene bolanderi M. R. Mesler, C. Wilson 2010-6-18 825 Humboldt Along Hwy 36 near pmm 32.53 771 Comment
  HSC103774  Silene bolanderi M. R. Mesler 2014-6-4 1636 Humboldt Burr Valley Road near Dinsmore 1117 Comment
  UC1198361  Silene californica Joseph P. Tracy 1948-8-8 18096 Humboldt Iaqua 609 Comment
  UC161014  Silene californica Joseph P. Tracy 1911-7-9 3457 Humboldt along Willow Creek (tributary of Trinity River, near its mouth); Northern Coast Ranges, along Willow Creek 182 Comment
  UC668097  Silene campanulata Joseph P. Tracy 1933-7-25 12871 Humboldt Grouse Mountain 1524 Comment
  HSC70980  Silene campanulata subsp. glandulosa Gail Newton 1980-7-22 1665 Humboldt Near Devils Backbone 231 Comment
  UC162884  Silene campanulata subsp. glandulosa Harley P. Chandler June, 1901 1471 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  UC1198366  Silene gallica Joseph P. Tracy 1905-6-4 2185 Humboldt at Eureka Northern Coast Region, at Eureka 0 Comment
  HSC68115  Silene gallica J. P. Smith 1973-5-26 6869 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  CAS-BOT-BC181243  Silene hookeri subsp. bolanderi Tom Jimerson 1983-5-26 s.n. Humboldt Lower Trinity Road, roadside cutbank on the road to Brush Mountain Lookout off Friday Ridge Rd. - Six Rivers National Forest Comment
  CAS-BOT-BC389066  Silene laciniata subsp. californica Eliz. Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  RSA595780  Silene lemmonii R. S. Woglum 1931-7-15 24 B Humboldt Outer Coast Ranges, Sequoia Park. Comment
  HSC26642  Sisymbrium officinale Thomas W. Nelson 1971-5-9 432 Humboldt Hwy. 36 opposite Goat Rock, 2 mi. W of Bridgeville Comment
  SEINET6744567 Image available Sisyrinchium bellum C. C. Harris, S. K. Harris 1942-6-9 1219 Humboldt 3 miles north and 1 mile west of Fernbridge, Humboldt County, California. Alt. Ca. 33 m. Comment
  RSA70587  Sisyrinchium californicum Frank W. Peirson 1923-7-11 3693 Humboldt 7 miles N of Arcata. Comment
  JEPS561  Smilacina racemosa Joseph P. Tracy 1938-7-7 16038 Humboldt Grouse Mountain 1524 Comment
  UC1103493  Smilacina stellata Joseph P. Tracy 1938-7-7 16039 Humboldt Grouse Mountain 1524 Comment
  UC1541352  Smilacina stellata W. K. Parks July 1933 Humboldt South Fork Mountain Comment
  CHSC97982  Solanum parishii J. Breton; A. Livingston 2005-6-15 12 Humboldt NE of Grouse Mtn. UTM 0444876, 4511301. On rock outcrop. 1327 Comment
  HSC98036  Solanum parishii Cara Witte 2007-7-19 548 Humboldt Ammon Ridge Rd., 2 mi. E of intersection with National Forest 1. 1453 Comment
  UC26254  Solanum umbelliferum Harley P. Chandler 1901-6-1 1351 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 152 Comment
  UC604645  Solanum umbelliferum Joseph P. Tracy 1938-6-7 15855 Humboldt 5 mi se of Blue Lake (Canyon Creek); Canyon Creek 152 Comment
  UC1070251  Solidago elongata H. L. Person 1932-7-19 Humboldt Lindsay Creek Eureka Quad, Lindsay Creek Comment
  HSC89418  Solidago lepida var. salebrosa P. A. Daly 1986-1-20 44 Humboldt Trinidad Head, along trail 61 Comment
  CAS-BOT-BC365670  Solidago spathulata Ira L. Wiggins 1930-6-25 4616 Humboldt 2 miles north of Samoa Comment
  HSC25959  Solidago spathulata Thomas W. Nelson 1970-11-7 288 Humboldt At the foot of Murray Rd. at McKinleyville Comment
  RSA167399  Solidago spathulata Joseph P. Tracy 1948-9-26 18226 Humboldt Fickle Hill, six miles southeast of Arcata. 610 Comment
  CHSC31290  Sonchus asper Mark Stopher 1980-6-4 96 Humboldt Along Elk River near Hwy 101 bridge. 1 Comment
  HSC6216  Sonchus asper J. L. Baker 1965-3-27 20 Humboldt 4 mi. N of Arcata on North Bank Rd. Comment
  HSC67888  Sonchus oleraceus J. P. Smith 1973-5-26 6862 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  RSA85191  Sparganium angustifolium F. W. Peirson 1926-7-12 7042 Humboldt Humboldt County: Orick Comment
  UCSB25395  Sparganium emersum Keefe, Joseph 1967-7-8 Humboldt East side of U.S. Highway 101, turnoff to Crannell Road, north of Eureka 6 Comment
  UC1099915  Sparganium emersum var. emersum Malcolm A. Nobs and S. Galen Smith 1949-8-9 1228 Humboldt 1 mi n Arcata (at junction of Highway 101 and Highway 299); Mad River Valley Comment
  CAS-BOT-BC235369  Spartina densiflora Ken Berg 1986-7-28 637 Humboldt Humboldt Bay, Arcata; foot of I Street Comment
  JEPS83447  Spartina densiflora Ken Berg 1986-7-28 637 Humboldt foot of I St. Arcata; Humboldt Bay, Arcata Comment
  UCD92983  Spartina foliosa Gordon Leppig 1998-8-6 992 Humboldt Arcata, Arcata Marsh and Wildlife Sanctuary. On Humboldt bay side of Klopp Lake dike. 2 Comment
  HSC4238  Spergula arvensis H. E. Parks May 1932 Humboldt Vicinity of Trinidad Comment
  CAS-BOT-BC390304  Spergularia macrotheca var. macrotheca S. K. Harris 1936-6-7 3225 Humboldt Eureka Comment
  HSC56168  Spergularia rubra G. L. Clifton, Griswold 1979-8-1 12059 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  CAS-BOT-BC149616  Spiraea douglasii H. E. McMinn 1922-7-1 289 Humboldt North of Scotia Comment
  UC1196405  Spiranthes porrifolia Joseph P. Tracy 1942-6-15 17154 Humboldt Garberville 152 Comment
  HSC16660  Spiranthes romanzoffiana D. E. Anderson 1961-9-13 1807 Humboldt Big Lagoon County Park Comment
  RSA249515  Spiranthes romanzoffiana Robert F. Thorne, Percy C. Everett 1965-8-9 35294 Humboldt Big Lagoon. 3 Comment
  UC1196401  Spiranthes romanzoffiana Joseph P. Tracy 1941-8-24 17037 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC1196406  Spiranthes romanzoffiana Joseph P. Tracy 1944-7-3 17487 Humboldt Willow Creek Trinity River Valley 152 Comment
  CHSC84693  Stachys ajugoides var. rigida L. P. Janeway 2003-7-26 7922 Humboldt High North Coast Ranges. South side (above) Road 5N04, 0.5 km northeast of the top of Grouse Mountain. 1554 Comment
  JEPS63050  Stachys ajugoides var. rigida Joseph P. Tracy 1937-8-12 15652 Humboldt Snow Camp 1402 Comment
  UC668214  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-17 15969 Humboldt near Panther Gap (on road between Bull Creek to Mattole) 822 Comment
  UC1239725  Stachys ajugoides var. rigida Joseph P. Tracy 1943-7-11 17434 Humboldt Park's garden Trinidad 3 Comment
  UC162688  Stachys ajugoides var. rigida Joseph P. Tracy 1911-7-11 3515 Humboldt hills along Supply Creek Northern Coast Ranges, Hoopa Valley 182 Comment
  BLMAR563  Stachys bergii Jennifer Wheeler 2009-7-21 563 Humboldt Headwaters Forest Reserve, along Elk River trail 60 Comment
  RSA34043  Stachys bullata A. A. Heller 1923-7-9 s.n. Humboldt Between Eureka and Fortuna. Comment
  POM283395  Stachys chamissonis Lyman Benson 1928-7-10 s.n. Humboldt Clam Beach, 8 mi. S. of Trinidad. 15 Comment
  HSC34274  Stachys rigida var. rigida K. Irwin 1975-8-13 Humboldt Grogans Hole area Comment
  HSC48678  Stachys rigida var. rigida Brad Klipfel 1973-7-31 250 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1198344  Stellaria borealis subsp. sitchana Joseph P. Tracy 1949-6-25 18349 Humboldt Box Camp; Trinity Summit 1524 Comment
  HSC4276  Stellaria media D. B. Bader 1963-2-17 32 Humboldt Second of the Clam Beach Lagoons W. of Hwy.101 Comment
  JEPS51121  Stellaria media Lincoln Constance 1934-5-31 754 Humboldt Bull Creek Flat South Fork Eel River, Bull Creek Region (along Bull Creek, from w boundary of park to Grasshopper Pk (Squaw Cr) rd, n side of creek) Comment
  UC161055  Stellaria media Joseph P. Tracy 1907-5-20 2562 Humboldt Eureka; Northern Coast Region 0 Comment
  UC161001  Stellaria nitens Joseph P. Tracy 1910-4-24 3126 Humboldt near Humboldt Bay (Ocean Beach at Humboldt Bay); Northern Coast Region Comment
  HSC40316  Stipa lemmonii Thomas W. Nelson 1976-7-9 2994 Humboldt Along ridge S of the E peak of the Lassic Peak (Signal Peak) group 1707 Comment
  HSC97968  Stipa lemmonii var. lemmonii Cara Witte, Michael Scott 2007-6-22 348 Humboldt Board Camp Mountain, jeep trail between Tri Board Camp and Fork Camp 1565 Comment
  JEPS118112  Streptanthus breweri Dean W. Taylor 2005-6-9 19339 Humboldt ridge dividing Swift Creek from Horse Creek, ca. 2 air miles SSE of Larabee Valley 853 Comment
  HSC103087  Streptanthus tortuosus Sydney Carothers 2014-6-22 7 Humboldt Six Rivers National Forest, Lassics Botanical Area; on saddle between Peak 1 and Mt. Lassic 1796 Comment
  POM126166  Streptanthus tortuosus Joseph P. Tracy 1922-9-3 6106 Humboldt Klamath River at Bluff Creek. 152 Comment
  HSC99005  Streptanthus tortuosus var. tortuosus Cara Witte 2008-6-15 730 Humboldt Coldspring Camp. 1460 Comment
  CAS-BOT-BC269567  Symphoricarpos albus var. laevigatus Carl B. Wolf 1930-10-29 1782 Humboldt Old Coast Road at Honeydew Post Office 152 Comment
  CAS-BOT-BC269577  Symphoricarpos albus var. laevigatus H. E. McMinn 1922-8-5 349 Humboldt Along Van Duzen River Comment
  UC1173691  Symphoricarpos albus var. laevigatus Joseph P. Tracy 1939-8-20 16428 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  UC169063  Symphoricarpos mollis Mrs. M. H. Manning 1900-1 Humboldt Hupa Comment
  HSC58791  Symphyotrichum bracteolatum Overton, Butler 1979-7-31 11427 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  CAS-BOT-BC99169  Symphyotrichum chilense L. R. Abrams 1927-8-31 12054 Humboldt Marshes along highway between Eureka and Arcata Comment
  SEINET11115992  Symphytum asperum Unknown 1949-1 18358 Humboldt CALIFORNIA PLANTS HUMBOLDT COUNTY Salmon Creek Valley, south end of Humboldt Bay; naturalized native of Asia. Comment
  UC902235  Synthyris reniformis Joseph P. Tracy 1945-5-15 17509 Humboldt Kneeland Prairie 762 Comment
  HSC21153  Synthyris reniformis D. E. Anderson 1964-2-23 2905 Humboldt Near Indian Creek on Kneeland-Bridgeville Rd. Comment
  JEPS9927  Synthyris reniformis Joseph P. Tracy 1923-3-10 6152 Humboldt Van Duzen River, near Grizzly Creek; Van Duzen River 91 Comment
  POM128331  Synthyris reniformis Jos. Burtt Davy, Walter C. Blasdale 1899-6-18 5617 Humboldt Bald Mtn, Northeast of Korbel. Comment
  UC142245  Synthyris reniformis Joseph P. Tracy 1906-4-15 2408 Humboldt 3 mi e Korbel (Bald Mountain); Northern Coast Ranges, Bald Mountain 609 Comment
  UC556334  Synthyris reniformis Mrs. Emanuel Fritz 1935-1 Humboldt between Miranda and Dyerville (along Redwood Highway) Comment
  UC1199278  Tanacetum balsamita Joseph P. Tracy 1936-9-18 15188 Humboldt Trinity River Valley, at Willow Creek Trinity River Valley, Willow Creek 152 Comment
  CAS-BOT-BC376719  Tanacetum bipinnatum John Thomas Howell; Gordon H. True; Lewis S. Rose 1972-6-5 48817 Humboldt Samoa Comment
  UC494200  Tanacetum vulgare H. E. and S. T. Parks 1930-9-14 786 Humboldt near Big Lagoon (along highway) Comment
  UC1197068  Tauschia kelloggii Joseph P. Tracy 1936-6-17 14943 Humboldt Bridgeville 198 Comment
  HSC100656  Tellima grandiflora Carl C. Marshall May 1886 190 Humboldt Damp places near streams. Comment
  HSC20425  Tellima grandiflora J. F. Knezevich 1968-5-23 459 Humboldt Above Trinidad, N end of Big Lagoon 0 Comment
  HSC20432  Tellima grandiflora Jack Rockwell 1962-4-24 24 Humboldt S bank Van Duzen River, E of Hwy. 101 9 Comment
  HSC64043  Tellima grandiflora Carl Wishner 1978-5-1 464 Humboldt Boise Creek Campground, Six Rivers National Forest Comment
  HSC79487  Tellima grandiflora Kenneth Clark 1980-3-23 536 Humboldt Along S Fork of Dead Man's Gulch 69 Comment
  UC503058  Thelypteris nevadensis Joseph P. Tracy 1932-7-20 10743 Humboldt Trinity Summit; Klamath Mts. 1371 Comment
  UC1129923  Thermopsis gracilis A. E. Wieslander 1931-5-17 197 Humboldt Bald Hills Hoopa Quadrangle Comment
  UC10967  Thlaspi montanum var. montanum Harley P. Chandler June, 1901 1377 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 182 Comment
  CAS-BOT-BC81319  Thuja plicata Milo S. Baker 1927-8-21 2471 a Humboldt Cold Bog, in vicinity of Bald Mt. 914 Comment
  NY17207  Thuja plicata A. Kellogg 1868-1 933 Humboldt This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  RSA47093  Thuja plicata Doris K. Kildale 1926-8-28 2567 Humboldt Wild Cat ridge on Ferndale - Capetown road near Boynton s 457 Comment
  SEINET3866804  Thuja plicata Jack D. Brotherson 1982-7-14 3315 Humboldt Ca 25 miles north of Arcata along U.S. Hwy 101.; 0 Comment
  HSC55631  Tiarella trifoliata var. unifoliata Overton, Butler 1979-7-24 9633 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC98073  Tiarella trifoliata var. unifoliata Cara Witte 2007-7-12 526 Humboldt Forest Service Road 5N10C. Approximately 1 mile south for intersection with Ammon Ridge Road. 1252 Comment
  UC154149  Tiarella trifoliata var. unifoliata Mrs. M. H. Manning Sept. 1901 Humboldt near Hupa; near Hupa Comment
  UC667101  Tiarella trifoliata var. unifoliata Joseph P. Tracy 1936-8-7 15085 Humboldt head of Little Hors-Linto Creek; Trinity Summit, head of Little Hors-Linto Creek 1371 Comment
  UCR3923  Tiarella trifoliata var. unifoliata David Whistler, H. M. Whistler 1964-7-29 640729- 5 Humboldt 0.2 mi north of Meyers Flats on U.S. 101 75 Comment
  RSA29344  Tiarella trifoliata var. unifoliata E. K. Balls, Percy C. Everett 1953-10-11 18599 Humboldt Fleishman s Grove, north boundary, Hwy 101 between Miranda and Weott. 152 Comment
  UC11936  Tiarella trifoliata var. unifoliata J. Burtt Davy 1899-6-19 5650 Humboldt Hoopa Mt. North Coast Ranges, summit Hoopa Mt. (at the summit) Comment
  HSC103111  Tofieldia glutinosa M. Mesler 2010-7-15 834 Humboldt Near Blake Mtn, FS rd N01 off rd 4N12 Comment
  UC1198897  Tolmiea diplomenziesii Joseph P. Tracy 1924-6-1 6689 Humboldt Lawrence Creek Northern Coast Ranges (at crossing of the Kneeland Road) 609 Comment
  UC1222357  Tolmiea diplomenziesii Joseph P. Tracy 1950-6-8 18726 Humboldt Bear River Ridge 609 Comment
  HSC73841  Tonella tenella Gail Newton 1980-6-7 134 Humboldt Near Brush Mtn. 1128 Comment
  UC169326  Tonella tenella Joseph Burtt Davy and Walter C. Blasdale 1899-6-10 5388 Humboldt near Hubbard's Station; North Coast Ranges Comment
  CDA18203  Torilis arvensis G. D. Barbe, T. C. Fuller 1974-6-17 1829 Humboldt North Coast Ranges; Thorne Rd., 4 mi W of Redway, southern Humboldt Co., enroute to Shelter Cove. 0 Comment
  UCR123960  Torilis arvensis George K. Helmkamp, E. A. Helmkamp 2001-7-8 6986 Humboldt North Coast, CA Hwy 36, along the Van Duzen River, 19.6 mi east of CA Hwy 101, west of Bar W Road 137 Comment
  HSC79551  Torilis arvensis Kenneth Clark 1980-6-14 668 Humboldt On western slope above Dead Man's Gulch. 152 Comment
  HSC97966  Torilis arvensis Cara Witte 2007-7-2 393 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1406 Comment
  UC183628  Torilis nodosa Joseph P. Tracy 1912-6-9 3683 Humboldt Alton 30 Comment
  SEINET7295170 Image available Torreyochloa pallida var. pauciflora Richard Spellenberg 1965-1 1135 Humboldt In partly shaded area, in redwood forest; about 1 1/2 mi. e. of Bayside (which is 2 mi. s. of Arcata) on road leading up Jacoby Creek Comment
  HSC95682  Toxicodendron diversilobum Steven Lee 2004-4-25 25 Humboldt From Hwy. 299, take South Fork Rd. to County Rd. 341. River access trail is at the end of the road. Comment
  SEINET10953093 Image available Tracyina rostrata Joseph P. Tracy 1916-6-20 Tracy 4735 Humboldt Alder Point, on warm grassy slopes. 305 Comment
  HSC43209  Trichostema lanceolatum R. Sutherland 1976-8-18 12 .18876 Humboldt 183 Comment
  HSC81619  Trichostema laxum Thomas W. Nelson, Jane P. Nelson 1980-8-4 6231 Humboldt Above Alder Springs along old trail 1585 Comment
  UC175495  Trichostema oblongum Joseph P. Tracy 1912-7-31 3945 Humboldt Buck Mountain, near the summit Northern Coast Ranges 1676 Comment
  SEINET11114303  Trientalis borealis subsp. latifolia Unknown 1966-6-8 2657 Humboldt HUMBOLDT CO.: Coast Range, east of Arcata, 1.5 miles south of Korbel. T.6N., R.2 E. Elevation 900 ft. 274 Comment
  JEPS43082  Trientalis latifolia Joseph P. Tracy 1926-5-22 7509 Humboldt Prairie Creek; Northern Coast Ranges, Prairie Creek 152 Comment
  UC1197230  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1906-6-10 2488 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1197242  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1913-6-20 4225 Humboldt nw slope Buck Mtn (lower foothills); Northern Coast Ranges 762 Comment
  CHSC84526  Trifolium arvense John Dittes; Josephine Guardino 2003-6-7 2003 -65 Humboldt Klamath Range; ca. 7.7 air-mile southwest of Orleans, ca. 4.1 air-miles northeast of confluence of Trinity River and Klamath River, ca. 0.3, air-mile northwest of confluence of Klamath River and Aikens Creek. Along entrance road to Aikens Creek Campground. 106 Comment
  UC1223517  Trifolium barbigerum J. P. Tracy 1948-6-13 18039 Humboldt 7 mi nw Blockburg (where rd is near creek, halfway betw Bridgeville and Blocksburg) Comment
  UC162800  Trifolium barbigerum J. P. Tracy 1906-6-17 2491 Humboldt immediate vicinity Eureka 0 Comment
  UC1223514  Trifolium barbigerum Joseph P. Tracy 1942-6-15 17120 Humboldt Englewood Prairie Comment
  UC33445  Trifolium barbigerum Joseph Burtt Davy and Walter C. Blasdale 1899-5 5684 Humboldt Hoopa Mtn Comment
  HSC49248  Trifolium bifidum R. Sutherland 1978-5-19 4 .19578 Humboldt Mckee Flat 296 Comment
  POM160892  Trifolium bifidum Joseph P. Tracy 1922-4-30 5992 Humboldt Trinity River Valley, near Willow Creek. 152 Comment
  UC1197205  Trifolium ciliolatum Joseph P. Tracy 1921-4-24 5463 Humboldt facing South Fork of Eel River (Phillipsville); Northern Coast Ranges 121 Comment
  UC1197206  Trifolium ciliolatum Joseph P. Tracy 1927-5-8 5463 Humboldt facing South Fork of Eel River (Phillipsville); Northern Coast Ranges 121 Comment
  JEPS66053  Trifolium dubium W. L. Jepson 1902-6-24 1923 Humboldt Eureka to Arcata Comment
  HSC45105  Trifolium dubium R. Sutherland 1978-5-17 2 .17578 Humboldt 305 Comment
  RSA43868  Trifolium dubium H. M. Pollard 1948-7-18 s.n. Humboldt Banks of Klamath River, Orleans. Comment
  SEINET6934966  Trifolium eriocephalum Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  UC16714 Image available Trifolium eriocephalum W. C. Blasdale 1896-6-8 Humboldt near Deer Creek; Mad River; Mad River near Deer Creek, Humboldt Co. Comment
  RSA21098  Trifolium eriocephalum subsp. eriocephalum Carl B. Wolf 1937-6-14 8826 Humboldt Kneeland Prairie; North Coast Range. 823 Comment
  BLMAR736  Trifolium fucatum Jennifer Wheeler 2015-5-8 736 Humboldt Larabee Butte, at Butte Creek Access Rd off Hwy 36 in drainage ditches 722 Comment
  HSC71067  Trifolium fucatum Thomas W. Nelson, Jane P. Nelson 1977-5-30 3400 Humboldt McKeown Ranch; along road to Anderson's Ford 854 Comment
  HSC57305  Trifolium longipes subsp. oreganum Griswold, Butler 1979-7-10 6210 Humboldt Near Kinsey Ridge, close to the town of Willow Creek 1244 Comment
  UC165536  Trifolium macraei Harley P. Chandler May, 1901 1148 Humboldt Eureka North Coast Ranges 30 Comment
  UC495697  Trifolium microdon Joseph P. Tracy 1927-6-18 8184 Humboldt between Petriola and the ocean hills; Northern Coast Ranges 152 Comment
  UC594252  Trifolium microdon S. K. Harris, J. P. Tracy, and H. S. Yates 1936-6-17 3448 Humboldt nw slopes Buck Mtn Comment
  UC160937  Trifolium oliganthum Joseph P. Tracy 1903-5-23 1895 Humboldt Alder Point Eel River; Northern Coast Ranges 152 Comment
  HSC98062  Trifolium repens Cara Witte 2007-7-11 503 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  RSA259546  Trifolium subterraneum David Ferranti 1974-5-6 s.n. Humboldt 4360 1/2 Union Street Comment
  UC16778  Trifolium variegatum var. melananthum Joseph Burtt Davy and Walter C. Blasdale 1899-6-15 5530 Humboldt Scotia Comment
  UC1223530  Trifolium variegatum var. melananthum Joseph P. Tracy 15374 Humboldt opposite Willow Creek (same place as no. 15331 and 15331 1/2); Trinity River Valley Comment
  JEPS4135  Trifolium variegatum var. variegatum Joseph P. Tracy 1929-5-5 8570 Humboldt Miranda Northern Coast Ranges, South Fork Eel River 121 Comment
  RSA168845  Trifolium variegatum var. variegatum Joseph P. Tracy 1935-5-24 13815 Humboldt Eureka. Comment
  SD53239  Trifolium virescens Darley F. Howe 1962-5-22 3308 Humboldt 0.7 mile east of Orick on Bald Mt. Road. 395 Comment
  UC1197520  Trifolium willdenovii Joseph P. Tracy 1911-6-25 3261 Humboldt Bucksport Northern Coast Ranges 0 Comment
  UC1197531  Trifolium willdenovii Joseph P. Tracy 1913-6-18 4199 Humboldt opposite Buck Mtn (Dinsmore's Ranch); Northern Coast Ranges, Van Duzen River Valley 762 Comment
  UC1197535  Trifolium willdenovii J. P. Tracy 1901-4-24 1038 Humboldt Eureka vicinity 0 Comment
  UC1197536  Trifolium willdenovii Joseph P. Tracy 1906-6-4 2534 Humboldt near Hydesville (Yager Creek); Northern Coast Region 60 Comment
  UC495691  Trifolium willdenovii Joseph P. Tracy 1927-6-12 8169 Humboldt Horse Mtn Northern Coast Ranges 914 Comment
  CHSC10114  Trifolium wormskioldii J. W. Johnson 1961-8-17 1009 Humboldt Arcata. In a vernal pond community of Hollow 10 W. M. Lanphere Farm. Samoa Peninsula. Comment
  HSC103842  Trifolium wormskioldii G. D. Barbe, T. C. Fuller 1974-6-17 1850 Humboldt Crescent City; Pebble Beach Rd., south of Airport and Washington Blvd. Comment
  HSC97616  Trifolium wormskioldii Cara Witte 2007-6-4 188 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  UC303195  Trifolium wormskioldii Joseph P. Tracy 1923-6-17 6274 Humboldt Big Lagoon Northern Coast Region 6 Comment
  HSC15189  Trifolium wormskioldii S. J. Moore 1965-5-10 33 Humboldt Near mouth of Little River Comment
  UC1223521  Trifolium wormskioldii Joseph P. Tracy 1938-7-12 16052 Humboldt w end of Table Bluff Comment
  RSA249527  Triglochin maritima Robert F. Thorne, Percy C. Everett 1965-8-7 35214 Humboldt Samoa Peninsula: near sea level Comment
  SEINET3151087  Triglochin maritima N. Dennis 1965-6-8 101 Humboldt along E edge of Humboldt Bay, 1 mi. S of Arcata Comment
  POM319421  Triglochin maritima Patricia Wilder 1968-8-21 4374 Humboldt Big Lagoon Park, just west of U.S. 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 15 Comment
  UCR179285  Trillium R. G. Swinney 1968-3-8 217 Humboldt Arcata 152 Comment
  HSC97468  Trillium albidum Cara Witte 2007-5-8 4 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1410 Comment
  HSC101807  Trillium albidum Kjirsten A. Wayman 2012-4-1 305 Humboldt Hoopa, 0.3 miles up Bair Road, near Supply Creek 168 Comment
  SEINET12050371  Trillium albidum F. H. Utech 1988-1 88 -286 Humboldt along CA 36 from Bridgeville enroute to Dinsmore, Mile Marker 42.00, above Van Duzen River 800 Comment
  HSC15697  Trillium ovatum D. E. Anderson 1962-3-18 1943 Humboldt Jacoby Creek Comment
  HSC39526  Trillium ovatum Thomas W. Nelson, Jane P. Nelson 1976-6-15 2714 Humboldt Along old trail from lookout to Blocksburg 1585 Comment
  HSC74571  Trillium ovatum M. A. Baker 1980-5-17 1192 Humboldt Near Le Perron Peak 792 Comment
  HSC95729  Trillium ovatum Steven Lee 2004-4-13 19 Humboldt Hillside along Jolly Giant Creek, Arcata Community Forest Comment
  RSA271695  Trillium ovatum Jane Turner, Francis M. Ball 1962-7-10 SK&F- 1140 Humboldt East Fork Willow Creek Forest Camp, Hwy 299 ca. 5 mi. W of Willow Creek in Six Rivers National Forest. 457 Comment
  CAS-BOT-BC133395  Trillium ovatum Doris K. Kildale 1926-3-25 1630 Humboldt Foot of Liscom Hill near Essex 30 Comment
  CAS-BOT-BC133398  Trillium ovatum Volney Rattan 1879-6-1 s.n. Humboldt Trail to Hoopa Comment
  HSC15691  Trillium ovatum D. E. Anderson 1962-5-11 Humboldt E of HSC campus Comment
  SEINET10275389  Trillium ovatum Unknown 1963-2-24 52 Humboldt altitude ca 250 ft, floor of Redwood Forest; Nelson Grove near bank of Eel River, Humboldt State Park Comment
  SEINET10906254  Triodanis biflora Chandler CHANDLER 1415 Humboldt Klamath River 427 Comment
  SEINET10459891  Triodanis perfoliata Tracy TRACY 2197 Humboldt EUREKA Comment
  JEPS26158  Triphysaria eriantha subsp. eriantha Joseph P. Tracy and Ernest B. Babcock 1912-5-12 3633 Humboldt Eureka Bucksport (Bucksport); Northern Coast Region, Eureka 0 Comment
  UC168994  Triphysaria pusilla Joseph Burtt Davy and Walter C. Blasdale 1899-6-10 5390 Humboldt Hubbard's Station; North Coast Ranges, Hubbard's Station Comment
  CHSC1822  Triphysaria versicolor subsp. faucibarbata V. Holt 1941-5-30 Humboldt Comment
  CAS-BOT-BC199624  Trisetum canescens Joseph P. Tracy 1935-7-25 14235 Humboldt Trinity Summit, open places at McKay Prairie 1584 Comment
  RSA10052  Trisetum canescens Joseph P. Tracy 1926-5-22 7502 Humboldt Northern Coast Ranges, Prairie Creek. 152 Comment
  HSC38626  Trisetum cernuum D. E. Anderson, J. P. Smith 1971-6-18 - 1102 Humboldt Under bridge over Redwood Creek on Hwy. 299 Comment
  HSC40318  Trisetum cernuum Thomas W. Nelson, James Nelson 1976-7-28 3074 Humboldt Along small creek on the E side of old trail from lookout to Blocksburg. 1555 Comment
  HSC60131  Triteleia bridgesii M. A. Baker 1978-5-6 482 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  HSC3061  Triteleia laxa D. E. Anderson 1962-7-14 2251 Humboldt 2 mi. W of Kneeland Post Office Comment
  HSC32937  Triteleia laxa Thomas W. Nelson, James Nelson 1973-5-28 952 Humboldt McKeown Ranch N of Dinsmore Comment
  UC1197718  Triteleia laxa Joseph P. Tracy 1912-6-30 3710 Humboldt Eureka Northern Coast Ranges 0 Comment
  CAS-BOT-BC526353  Triteleia laxa Ella Dales Cantelow 1939-6-4 3916 Humboldt 11.3 miles north of Garberville, road to Alder Point Comment
  POM169620  Triteleia peduncularis Joseph P. Tracy 1903-6-12 1920 Humboldt Immediate vicinity of Eureka. 0 Comment
  SEINET11092948  Turritis glabra Unknown 1906-5-13 2456 Humboldt Plants of Northern Coast Region of California SAND DUNES OF OCEAN BEACH AT HUMBOLDT BAY Comment
  HSC49395  Umbellularia californica R. York 1979-4-16 235 Humboldt Corner of 12th and D in Arcata Comment
  UC203898  Umbellularia californica Joseph P. Tracy 1918-9-29 5101 Humboldt South Fork Eel River, 8 mi above the mouth, Myers Ranch South Fork Eel River; Northern Coast Ranges, , Myers Ranch 60 Comment
  UC1222619  Urtica dioica subsp. holosericea Joseph P. Tracy 1950-9-22 19369 Humboldt 8 mi below Orleans (near Slate Creek, Klamath River); Klamath River 121 Comment
  UCD111618  Urtica urens Joseph P. Tracy 1944-6-10 17476 Humboldt Eureka. 30 Comment
  UC1197778  Vaccinium cespitosum Joseph P. Tracy 1925-7-5 7176 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  UC562347  Vaccinium cespitosum Joseph P. Tracy 1933-7-16 12792 Humboldt near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  UC154182  Vaccinium ovatum Harley P. Chandler Jun 1901 1397 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Valley 152 Comment
  CHSC609  Vaccinium parvifolium V. Holt 1933-4-10 Humboldt Comment
  RSA34285  Vaccinium parvifolium J. Wendell Howe 1930-9-15 s.n. Humboldt Arcata. Comment
  UC1196345  Vancouveria hexandra Joseph P. Tracy 1937-7-24 15535 Humboldt Trinity Summit, head of Little Hors-Linto Creek Little Hors-Linto Creek; Trinity Summit, Little Hors-Linto Creek 1371 Comment
  HSC3388  Vancouveria hexandra M. T. Milligan 1964-5-14 Humboldt 3 mi. N on Essex Ln. Comment
  RSA183508  Vancouveria hexandra S. S. Stutz 1963-5-18 56 Humboldt Seven miles SE of Arcata on Fickle Hill Road. Comment
  UC1222354  Vancouveria planipetala Joseph P. Tracy 1950-7-2 18966 Humboldt 6 mi ne Hawkins Bar (Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  UC146078  Vancouveria planipetala Joseph P. Tracy 1908-6-23 2678 Humboldt near Grizzly Gulch; Northern Coast Ranges, near Grizzly Gulch 152 Comment
  UC1198209  Veratrum insolitum Joseph P. Tracy 1949-7-19 18386 Humboldt head Friday Ridge; Grouse Mountain 1524 Comment
  UC582590  Verbascum blattaria Joseph P. Tracy 1937-6-26 15366 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  HSC98115  Verbena lasiostachys Cara Witte 2007-6-27 369 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Near intersection with 4N32B 1516 Comment
  UC154273  Verbena lasiostachys var. lasiostachys Harley P. Chandler June, 1901 1353 Humboldt Hupa Indian Reservation 152 Comment
  UC582550  Veronica americana Joseph P. Tracy 1937-7-2 15389 Humboldt ne of Hawkins Bar (Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  HSC21223  Veronica arvensis William J. Ferlatte 1963-5-15 47 Humboldt Waste place near 11th and B Sts., Arcata Comment
  UC582552  Veronica peregrina subsp. xalapensis Joseph P. Tracy 1935-5-25 13832 Humboldt Fort Seward 106 Comment
  CHSC53307  Veronica scutellata L. P. Janeway 1984-5-16 795 Humboldt On the North Spit of Humboldt Bay; on the west side of Samoa Rd and ca 1/4 mile northwest of the boat ramp. 3 Comment
  HSC28231  Veronica scutellata John R. Keith 1973-5-15 Humboldt Abandoned log pond about 200 yds. E of junction of Guintoli Ln. and West End Rd. Comment
  JEPS29846  Veronica scutellata Rimo Bacigalupi and L. Heckard, J. Weiler 1961-6-23 7836 Humboldt about 1 mi w of Carlotta (or about 0.5 mi e of Hydesville) Comment
  HSC56097  Veronica serpyllifolia subsp. humifusa G. L. Clifton 1979-7-31 11807 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC99295  Vicia americana var. americana Jimerson, J. Pageau 1979-8-10 719 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  RSA293198  Vicia angustifolia J. P. Smith 1973-5-26 6831 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  POM68420  Vicia gigantea Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  HSC15269  Vicia gigantea C. O. Baker 1962-5-7 33 Humboldt 2 mi. S of Trinidad along Hwy. 101 15 Comment
  JEPS66176  Vicia hassei Lincoln Constance 1934-6-6 826 Humboldt Dyerville to Horse Prairie (fire trail); South Fork Eel River, Bull Creek Region Comment
  RSA755060  Vicia sativa subsp. nigra Robert F. Thorne, Percy C. Everett 1965-8-8 35241 Humboldt N edge of Eureka, E of Hwy. 101 5 Comment
  UCR40074  Vicia tetrasperma L. P. Janeway, Paul Wilson 1984-5-25 828 Humboldt North Spit of Humboldt Bay; BML [sic - BLM?] lands near the Coast Guard Station. 5 Comment
  RSA181630  Vicia tetrasperma Doris K. Niles 1950-6-1 s.n. Humboldt Island in Eel River, Niles field. Comment
  HSC15281  Vicia villosa David Adams 1960-7-15 Humboldt Near Fort Humboldt monument, Eureka 15 Comment
  HSC21757  Viola adunca N. J. Cole, D. E. Anderson 1965-4-13 16 Humboldt 1.5 mi. SE of Maple Creek Rd. jct. with Bald Hills Rd., SE of Korbel Comment
  CHSC57460  Viola cuneata L. P. Janeway 1984-6-17 844 Humboldt On ridge east of Horse Mountain. 1432 Comment
  UC1762591  Viola cuneata Harley P. Chandler Jun 1901 1297 - Humboldt Hupa Indian Reservation North Coast Ranges 609 Comment
  RSA168949  Viola cuneata Joseph P. Tracy 1950-7-1 18946 Humboldt Summit near Clear Lake. Grouse Mountain. 1524 Comment
  HSC44358  Viola glabella Brad Klipfel 1974-5-27 398 Humboldt Horse Mtn. Comment
  UC502935  Viola glabella Joseph P. Tracy 1932-7-17 10682 Humboldt head of Brett Hole; Klamath Mountains, Trinity Summit 1828 Comment
  HSC21797  Viola glabella R. D. Modafferi 1965-3-19 56 Humboldt 2.1 mi. N of Trinidad on Trinity St. 305 Comment
  HSC39528  Viola hallii Thomas W. Nelson, Jane P. Nelson 1976-6-15 2713 Humboldt Along old trail from look out to Blocksburg 1585 Comment
  HSC78920  Viola hallii Jimerson, Imper 1982-5-17 1440 Humboldt Near Ashfield Ridge. 822 Comment
  SEINET200801 Image available Viola praemorsa J. P. Tracy 1922-5-29 6067 Humboldt Head of South Yager Creek Comment
  JEPS50373  Viola praemorsa subsp. praemorsa Joseph P. Tracy 1930-6-8 8730 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC249588  Viola praemorsa subsp. praemorsa Joseph P. Tracy 1922-5-29 6067 Humboldt Head of South Yager Creek; Northern Coast Ranges, South Yager Creek Comment
  UC502953  Viola praemorsa subsp. praemorsa Joseph P. Tracy 1930-6-8 8730 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  RSA80574  Viola praemorsa subsp. praemorsa Milo S. Baker 1935-4-18 8059 Humboldt Near headwaters of S Fork of Yager, ca 2 mi W of Bridgeville. Comment
  HSC71831  Viola purpurea subsp. purpurea Thomas W. Nelson, Jane P. Nelson 1980-6-27 5959 Humboldt Saddle E of Mt. Lassic 1677 Comment
  UCD111294  Viola sempervirens Joseph M. DiTomaso 1976-3-28 353 Humboldt Highway 299, W side of Lord Ellis Summit. 762 Comment
  CAS-BOT-BC198763  Vulpia bromoides Doris K. Kildale 1926-5-2 1857 Humboldt Willow Creek Flat, Trinity River Valley 152 Comment
  CHSC19486  Vulpia microstachys D. E. Anderson; J. O. Sawyer, J. P. Smith Jr. 1970-5-10 5056 Humboldt Along road from Redwood Creek to Hoopa, ca 1-3 miles west of Hoopa. Comment
  HSC9914  Vulpia microstachys C. S. Chavez 1965-5-1 64 Humboldt On Hwy. 299 2 mi. E of Willow Creek. Comment
  CAS-BOT-BC183940  Vulpia microstachys var. microstachys Doris Kildale Gillespie 1931-6-7 10605 Humboldt South Fork Mt. Black Lookout 1726 Comment
  UC1145190  Vulpia microstachys var. pauciflora Joseph P. Tracy 1936-5-29 14825 Humboldt French Camp Ridge; Northern Coast Ranges 1066 Comment
  HSC70350  Vulpia myuros M. A. Baker 1980-6-7 1810 Humboldt Near Brush Mtn. 1128 Comment
  JEPS60112  Woodwardia fimbriata W. L. Jepson 1932-7-30 16453 Humboldt Bull Creek, on bluff Bull Creek 121 Comment
  HSC6316  Wyethia angustifolia Frances Oldridge 1945-1 Humboldt Arcata Comment
  JEPS32099  Wyethia angustifolia W. L. Jepson 1902-8-13 1955 Humboldt Green Point Ranch Redwood Creek Comment
  UC582640  Wyethia longicaulis Joseph P. Tracy 1932-6-26 10253 Humboldt Valley of South Yager Creek 762 Comment
  HSC98358  Xerophyllum tenax T. Jimerson, J. Pageau 1979-6-12 525 Humboldt Near Hopkins Butte, close to the town of Orleans. 1036 Comment
  CAS-BOT-BC527078  Xerophyllum tenax Volney Rattan 1903-1-1 s.n. Humboldt Near Mad River Bridge Comment
  SEINET12197025  Zauschneria californica E. A. York 1990-1-10 2675 Humboldt USGS Redwood Field Station, Arcata Comment
  HSC67968  Zeltnera muehlenbergii J. P. Smith 1973-5-26 6860 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC40300  Zigadenus micranthus Thomas W. Nelson, Jane P. Nelson 1976-7-1 2901 Humboldt Along ridge N of Bear Creek 1463 Comment
  UC275516  Zigadenus micranthus var. micranthus Joseph P. Tracy 1924-7-4 6521 Humboldt Valley South Yager Creek; Northern Coast Ranges, Valley of South Yager Creek 762 Comment



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