Search Results — 2000 specimen records retrieved (1340 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  HSC41313  Abies concolor Brad Klipfel 1974-9-2 543 Humboldt Horse Mountain Comment
  HSC54516  Abies concolor Overton, Butler 1979-7-23 9432 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  HSC55100  Abies concolor G. L. Clifton 1979-7-31 11814 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC1343  Abies grandis Francis Winter 1960-5-14 Humboldt Samoa Peninsula, 6 mi. W of Arcata Comment
  SD136394  Abies grandis Doris Kildale Niles 1941-7-25 Humboldt Arcata Comment
  UC1173736  Abies grandis Joseph P. Tracy 1939-5-30 16298 Humboldt 1 mi below Dinsmore's (along bank of Van Duzen River); Van Duzan River 731 Comment
  UC55645  Abies magnifica var. shastensis Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 58121 Humboldt Trinity summit North Coast Ranges, Trinity Summit (ne Humboldt and nw Trini Comment
  CAS-BOT-BC383848  Abronia latifolia W. R. Dudley 1899-6-1 s.n. Humboldt Samoa Comment
  CHSC1071  Abronia latifolia M. Underhill 1952-7-13 Humboldt Seashore sand. 0 Comment
  SD41412  Abronia latifolia Edith A. Purer 1932-7-27 4154 Humboldt Near Samoa Comment
  UCR32087  Abronia latifolia David J. Keil 1983-7-1 17287 Humboldt Pacific Coast, c. 5 mi. west of Petrolia along Mattole Road 225 Comment
  UCD150384  Abronia umbellata var. breviflora William Anderson and H. Mc. 1964-8-6 s.n. Humboldt Little River. Comment
  HSC99409  Acer glabrum var. torreyi K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 58 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 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
  HSC4548  Achillea millefolium R. I. Bonn 1965-4-3 15 Humboldt Four miles West of Arcata on Lanphere Rd. Comment
  UCSB30612  Achillea millefolium Edwards, David 1974-7-26 Humboldt At the top of the E. bank of the Mad River, at its junction with Puter Creek, ca. 2 mi. SW. of Korbel 27 Comment
  RSA167311  Achillea millefolium Joseph P. Tracy 1950-5-30 18712 Humboldt Trinity River Valley, at Willow Creek Comment
  CAS-BOT-BC400022  Achlys triphylla Mrs. H. E. Wilder 1933-5-20 s.n. Humboldt Carlotta Comment
  HSC42004  Achlys triphylla Tom Duebendorfer 1977-5-15 51 Humboldt 8.9 mi. E on Ward Rd. from junction of Maple Creek Rd. and Old Hwy. 299 610 Comment
  SD42586  Achlys triphylla subsp. triphylla Carl B. Wolf 1937-6-19 8914 Humboldt North Coast Range, 7.2 miles above Bridgeville on grade to Dinsmores 455 Comment
  SEINET5585534 Image available Achnatherum lemmonii Joseph P. Tracy 1950-1 18787 Humboldt Mail Ridge, north of Harris 7 miles 1036 Comment
  SEINET11682291  Achnatherum lemmonii J. P. Tracy 1951-1 19563 Humboldt halfway between Snow Camp & Twin Lakes (at Preston's old gate near road) Comment
  UCSB16556  Acmispon americanus Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  HSC69893  Acmispon denticulatus Thomas W. Nelson, Jane P. Nelson 1977-7-29 3639 Humboldt Beside SR 36 at head of Larabee Valley 823 Comment
  UCD103751  Acmispon denticulatus Bill Brooks 1948-6-1 s.n. Humboldt Van Duzen River, 3 mi. W of Bridgeville. Comment
  HSC56154  Aconitum columbianum subsp. viviparum G. L. Clifton, Griswold 1979-8-1 12014 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC82393  Aconogonon davisiae Thomas W. Nelson 1979-7-11 5022 Humboldt N Trinity Mtn. and ridge to E, SE of Water Dog Lake 1829 Comment
  UC1222569  Actaea rubra Joseph P. Tracy 1950-7-2 18977 Humboldt below Grizzly Camp (along creek at crossing of Little Hors Linto Creek); Trinity Summit Comment
  HSC76344  Adenocaulon bicolor Teresa Prendusi 1981-7-24 487 Humboldt Near Whiteys Peak 1585 Comment
  SEINET10473553  Adenocaulon bicolor Mary Merello 1993-6-19 Merello 660 Humboldt Along the Weott-Honeydew Road just outside of the Rockerfeller Forest boundary. Redwood Forest. 90 Comment
  HSC97952  Adenocaulon bicolor Cara Witte 2007-6-21 326 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1430 Comment
  RSA418957  Adenocaulon bicolor Lyman Benson 1927-7-11 226 Humboldt Weott Ranger Station, Seaward N Coast Mts. 61 Comment
  OBI1123  Adiantum X tracyi Lawrence L. Kiefer 1964-5-19 1406 Humboldt Garberville, California one mile north of town, ravine just above Highway 101 305 Comment
  RSA687732  Adiantum aleuticum Maude Minthorn s.n. Humboldt Ferndale Comment
  RSA67622  Adiantum aleuticum P. A. Munz 1951-7-15 16547 Humboldt Racoon Creek. 305 Comment
  UC197911  Adiantum jordanii Joseph P. Tracy 1914-5-14 4427 Humboldt Fort Seward; Northern Coast Ranges 121 Comment
  UC62707  Adiantum jordanii Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5729 Humboldt Supply Creek Comment
  HSC43842  Aesculus californica Maralyn O'Meara 1974-5-18 498 Humboldt Fisher Rd. near Carlotta Comment
  CAS-BOT-BC30380  Ageratina occidentalis Doris K. Kildale 1926-8-29 2592 Humboldt Van Duzen River, near Strong's Station Comment
  HSC58060  Ageratina occidentalis G. L. Clifton, Griswold 1979-8-1 11936 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  UC1223124  Ageratina occidentalis Joseph P. Tracy 1950-7-31 19223 Humboldt Friday Ridge 1219 Comment
  SEINET11854879  Agoseris apargioides J. P. Tracy 1949-1 18441 Humboldt Near Box Camp. Trinity Summit, meadow at Box Camp 1463 Comment
  SEINET202624 Image available Agoseris grandiflora Joseph P. Tracy 1942-7-18 17276 Humboldt Garberville north end of town. Comment
  UC164783  Agoseris grandiflora var. grandiflora J. P. Tracy 1903-5-22 1889 Humboldt Alder Point Alder Point 152 Comment
  UC204168  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1918-7-14 5076 Humboldt grassy borders of field Eureka; Northern Coast Ranges 0 Comment
  UC1173669  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1939-8-5 16390 Humboldt (along Van Duzen River opposite Buck Mt.) Dinsmore's; Van Duzen River, Buck Mt. 762 Comment
  CAS-BOT-BC15349  Agoseris heterophylla L. R. Abrams 1918-6-16 7136 Humboldt Willow Creek Comment
  HSC71062  Agoseris heterophylla Thomas W. Nelson, Jane P. Nelson 1977-5-30 3396 Humboldt McKeown Ranch; along road to Anderson's Ford 854 Comment
  UC165751  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1908-6 2735 Humboldt opposite, in valley of Van Duzen River Buck Mountain; Northern Coast Ranges, Van Duzen River 762 Comment
  HSC32335  Agoseris retrorsa D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5616 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  RSA44465  Agrostis densiflora Henry M. Pollard 1948-7-17 s.n. Humboldt Banks of Klamath River at Orleans. Comment
  SEINET200940  Agrostis densiflora A. A. Beetle 1941-7-8 2884 Humboldt Stone lagoon facing ocean. 6 Comment
  RSA21206  Agrostis exarata C. B. Wolf 1937-8-10 9095 Humboldt Big Lagoon, so. side, w. side of Redwood Highway 6 Comment
  UC1103386  Agrostis exarata Joseph P. Tracy 1934-7-21 13478 Humboldt near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC1103387  Agrostis exarata Joseph P. Tracy 1927-6-19 8192 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UC1103389  Agrostis exarata Joseph P. Tracy 1950-7-16 19048 Humboldt open grassy flats Trinidad 3 Comment
  UC526885  Agrostis exarata Joseph P. Tracy 1933-7-10 12656 Humboldt Trinidad Northern Coast Region 60 Comment
  UC1145077  Agrostis hallii Joseph P. Tracy 1938-7-4 15982 Humboldt valley South Yager Creek; Valley of South Yager Creek 762 Comment
  CAS-BOT-BC139131  Agrostis oregonensis Joseph P. Tracy 1934-7-13 13392 Humboldt North Coast Ranges. Dows Prairie. 60 Comment
  UC526877  Agrostis oregonensis Joseph P. Tracy 1930-7-23 9129 Humboldt along streamlet Northern Coast Ranges, Horse Mountain 1524 Comment
  RSA10063  Agrostis pallens Joseph P. Tracy 1932-7-17 10661 Humboldt Trinity summit. Corral Prairie 1524 Comment
  SACT000139  Agrostis palustris S. Smith, Malcolm Nobs 1949-8-3 Humboldt Borders of irrigation ditch Comment
  HSC70764  Aira caryophyllea R. York 1980-5-17 518 Humboldt Near Le Perron Peak 792 Comment
  UC526681  Aira caryophyllea Joseph P. Tracy 1927-6-19 8199 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UCR199659  Aira praecox R. F. Thorne, Percy C. Everett 1965-8-9 35308 Humboldt Northwestern; Outer North Coastal region, Big Lagoon 3 Comment
  HSC74089  Allium falcifolium Gail Newton 1980-6-28 679 Humboldt Near Mad River Butte 1536 Comment
  CAS-BOT-BC469016  Allium falcifolium Thomas W. Nelson; James L. Nelson 1980-6-10 5400 Humboldt Blocksburg Quad.; Along Swayback Ridge 4-wheel drive road 1.25 miles south of junction with Forest Service road. Comment
  UC666922  Allium unifolium Joseph P. Tracy 1935-6-8 13953 Humboldt along coast in front of South End of Stone Lagoon; Dry Lagoon 15 Comment
  HSC45073  Allium unifolium R. Sutherland 1978-4-23 35 .23478 Humboldt 451 Comment
  RSA46860  Alnus rhombifolia Doris K. Kildale 1926-8-8 2457 a Humboldt South Fork of Eel River between mouth of Bull Creek and Dyerville bridge. 91 Comment
  UC1197957  Alnus rhombifolia Joseph P. Tracy 1931-9-26 9699 Humboldt Berry's Northern Coast Ranges, Redwood Creek 274 Comment
  UC275562  Alnus rhombifolia Joseph P. Tracy 1923-10-14 6574 Humboldt Northern Coast Ranges, North Dobbyn Creek North Dobbyn Creek; Northern Coast Ranges, North Dobbyn Creek 152 Comment
  CAS-BOT-BC169531  Alnus rubra Doris K. Kildale 1926-8-12 2488 Humboldt Moonstone Beach between Arcata and Trinidad Comment
  HSC59200  Alnus rubra Terry Roth 1979-5-24 76 Humboldt Union St. near 11th St. Comment
  JEPS58588  Alnus rubra Lincoln Constance 1934-5-31 746 Humboldt along creek from w boundary of Park to Grasshopper Pk. (Squaw Cr.) rd. (n side of cr.); Bull Creek Region, South Fork Eel River, Bull Cr. flat Comment
  POM212075  Alnus rubra C. B. Wolf 1930-10-26 1967 Humboldt south edge of Big Lagoon, near the Redwood highway bridge. 3 Comment
  RSA28320  Alnus rubra E. K. Balls, P. C. Everett 1953-10-12 18635 Humboldt 5.6 mi. n. of Little River, Hwy 101 between Arcata and Crescent City. 61 Comment
  RSA778734  Alnus rubra Lyman Benson 1928-7-10 430 Humboldt Clam Beach, Trinidad. 12 Comment
  UC198600  Alnus rubra Joseph P. Tracy 1917-10-28 4859 Humboldt North Fork of Eel River Northern Coast Ranges, around Humboldt Bay 91 Comment
  UC275559  Alnus rubra Joseph P. Tracy 1923-2-25 6150 Humboldt near Carlotta; Northern Coast Ranges, Van Duzen River 30 Comment
  HSC8884  Alopecurus geniculatus True Hoyle 1967-7-15 28267 Humboldt Dolson Ranch, 225 Bayside Rd., Arcata, next to Grade A milking barn 152 Comment
  RSA152528  Alopecurus geniculatus Joseph P. Tracy 1917-6-17 4816 Humboldt Salmon Creek Valley, at south end of Humboldt Bay. 15 Comment
  UC673032  Amaranthus albus Joseph P. Tracy 1940-10-15 16756 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC13709  Ambrosia chamissonis Le Roy Abrams 1916-7-18 6119 Humboldt Arcata to Trinidad Comment
  CAS-BOT-BC13699  Ambrosia chamissonis Kenneth Clark 1981-5-24 1396 Humboldt Shelter Cove, 100 yards west of Dead Man's Gulch. Point Delgada quad. 3 Comment
  UCD170774  Ambrosia chamissonis Gordon Leppig 1998-5-25 786 Humboldt Big Lagoon State Park. Between ocean and Big Lagoon. 2 Comment
  UC418998  Amelanchier alnifolia var. semiintegrifolia H. E. Parks, J. P. Tracy 1925-6-25 3775 Humboldt Lawrence Creek Comment
  UC14177  Amelanchier alnifolia var. semiintegrifolia W. C. Blasdale 1896-6-6 Humboldt Fitzgeralds Comment
  HSC41333  Amelanchier pallida Brad Klipfel 1974-9-17 570 Humboldt Horse Mtn. Comment
  CAS-BOT-BC143015  Amelanchier utahensis Joseph P. Tracy 1946-7-13 17618 Humboldt Carlotta, open flat by old Strong's District School House, 5 miles east of town. 60 Comment
  UC466773  Amelanchier utahensis P. E. Goddard 1901-7-12 77 Humboldt Hupa 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
  RSA385128  Ammophila arenaria Edith A. Purer 1932-7-27 4157 Humboldt Samoa sand dunes. Comment
  HSC3536  Amsinckia douglasiana J. Wendell Howe 1214 Humboldt Comment
Read comments
Feb 11 2018
  UC175680 Image available Amsinckia spectabilis Joseph P. Tracy 1910-6-5 3152 Humboldt sand dunes of ocean beach at Humboldt Bay; Northern Coast Region; Ocean Beach at Humboldt Bay Comment
  HSC68320  Anagallis arvensis J. P. Smith 1973-5-26 6817 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC40259  Anaphalis margaritacea Linda M. Barker 1976-8-2 1671 Humboldt Lanphere- Christensen Dunes, 3 mi. W of Arcata Comment
  HSC49064  Anaphalis margaritacea Patricia Shesgreen 1978-8-2 125 Humboldt Arcata Community Forest, Arcata; 200 yds. N of field house on top of hill overlooking baseball field Comment
  CAS-BOT-BC45133  Anaphalis margaritacea Carl B. Wolf 1937-8-13 9212 Humboldt 9 miles NE of Blue Lake on Lord Ellis Road 243 Comment
  OBI17091  Anaphalis margaritacea Carl B. Wolf 1937-8-13 9213 Humboldt N Coast Range, 9 mi NE of Blue Lake on Lord Ellis Rd Comment
  POM118715  Anemone deltoidea Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  CAS-BOT-BC391775  Anemone deltoidea L. R. Abrams; G. T. Benson 1924-5-18 10736 Humboldt Bull Creek Redwood Grove Comment
  HSC21447  Angelica hendersonii C. B. Wolf 1927-8-29 1216 Humboldt Devil's Gate, S of Cape Mendocino. Comment
  JEPS14106  Angelica hendersonii Joseph P. Tracy 1937-8-22 15674 Humboldt Table Bluff 91 Comment
  CAS-BOT-BC211057  Angelica lucida Joseph P. Tracy 1909-9-19 3087 Humboldt Near Samoa. Region about Humboldt Bay 152 Comment
  CDA38195  Angelica lucida Gordon Leppig 1998-6-18 839 Humboldt Route 101 on Humboldt Bay at mouth of Jacoby Creek. Comment
  HSC60374  Angelica lucida J. M. DiTomaso 1979-5-20 1058 Humboldt Above College Cove at Elks Head, 1 mi. N of Trinidad. Comment
  UC642300  Angelica tomentosa Joseph P. Tracy 1939-8-16 16409 Humboldt Horse Mountain 1432 Comment
  UC485304  Anisocarpus madioides J. P. Tracy 1903-5-24 1909 Humboldt Alder Point 304 Comment
  UC494177  Anisocarpus madioides Parks and Tracy 1930-5-25 864 Humboldt Laribee Valley Comment
  UCD128893  Anisocarpus madioides K. Esau 1934-5-7 s.n. Humboldt Above Fort Seward. 457 Comment
  HSC38792  Anthemis cotula J. D. Ackerman 1975-8-31 655 Humboldt Lanphere Rd. near Mad River Slough, Arcata Bottoms 2 Comment
  HSC4669  Anthemis cotula Frances Oldridge 1945-1 Humboldt Eureka Comment
  SEINET11853738  Anthemis cotula J. P. Tracy 1946-1 17643 Humboldt Eel River at mouth of Van Duzen River Comment
  UCD85348  Anthoxanthum occidentale A. A. Beetle; G. L. Stebbins Jr. 1942-6-3 3487 Humboldt Redwood grove 9 miles south of Garberville. Comment
  CDA18220  Anthoxanthum odoratum G. D. Barbe, T. C. Fuller 1974-6-17 1848 Humboldt North Coast Ranges; At 707 L Street, Eureka 0 Comment
  HSC8931  Anthoxanthum odoratum J. W. Johnson 1962-4-18 1267 Humboldt Along the lane below the W.M. Lanphere Home, Samoa Peninsula Comment
  JEPS5358  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1939-8-5 16384 Humboldt Dinsmore's 731 Comment
  JEPS83361  Antirrhinum vexillocalyculatum subsp. breweri David M. Thompson 1983-6-26 353 Humboldt about 2 mi se Miranda (0.9 mi wnw of Franklin K. Lane Redwood Grove, Phillipsville vicinity, on nnw side of Avenue of the Giants); Phillipsville, Garberville Quad. (15', 1951) 121 Comment
  UC162567  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1911-7-10 3482 Humboldt near Willow Creek (hill slopes at w side of Trinity River); Northern Coast Ranges, Trinity River 243 Comment
  HSC98059  Apocynum androsaemifolium Cara Witte 2007-7-11 498 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1641 Comment
  UC176867  Apocynum cannabinum Joseph P. Tracy 1912-7-26 3838 Humboldt Kneeland Prairie North Coast Ranges, Kneeland Prairie 762 Comment
  JEPS60402  Aquilegia formosa Lincoln Constance 1934-5-29 733 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 Comment
  RSA668408  Aquilegia formosa Thomas W. Stark 1967-7-24 100 Humboldt 1/4 mile W of rt 101, 3 miles N of Trinidad Head. 91 Comment
  HSC75558  Aquilegia formosa var. formosa J. O. Sawyer, R. J. Cole 1977-7-3 3006 Humboldt Environs of Mud Spring, Big Hill Rd. (F.S. 8N01) 1524 Comment
  HSC57633  Arabis breweri var. breweri G. L. Clifton, Griswold 1979-7-25 10787 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC71084  Arabis glabra M. A. Baker 1980-5-23 1389 Humboldt Near Buck Mtn. 1524 Comment
  HSC76348  Arabis glabra Denis Kearns 1981-7-22 520 Humboldt Near Whiteys Peak 1487 Comment
  HSC57454  Arabis lyallii G. L. Clifton, Terry Griswold 1979-7-26 10279 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  RSA1431  Aralia californica C. B. Wolf 1929-08 616 Humboldt 5 miles south of Weott Comment
  RSA183602  Arbutus menziesii Norman Dennis 1965-5-8 59 Humboldt 6 miles east of Blue Lake on Highway 299. Comment
  UC1196880  Arbutus menziesii F. C. Gregory 1919-10-10 Humboldt Trinity River Valley near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  JEPS44157  Arctium minus W. L. Jepson 1902-8-3 2136 Humboldt low lands near, over Eel River Ferndale Ferry 1 Comment
  UC180210  Arctium minus Joseph P. Tracy 1914-10-4 4631 Humboldt Table Bluff Northern Coast, Humboldt Bay 0 Comment
  CAS-BOT-BC23749  Arctostaphylos columbiana Joseph P. Tracy 1936-8-24 15170 Humboldt Fickle Hill, 6 mi. SE of arcata 609 Comment
  CAS-BOT-BC23780  Arctostaphylos columbiana Joseph P. Tracy 1936-8-2 15074 Humboldt French Camp Ridge 1066 Comment
  HSC12231  Arctostaphylos columbiana Gary J. Stebbins 1970-2-2 6 Humboldt Along Hwy. 101, just across Patrick's Point State Park Comment
  JEPS38968  Arctostaphylos columbiana Joseph P. Tracy 1936-8-24 15170 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  SBBG58415  Arctostaphylos columbiana H. E. Parks 1931-3-25 917 Humboldt near Patrick's Pt Comment
  UC1198663  Arctostaphylos columbiana Joseph P. Tracy 1934-2-22 13138 Humboldt vicinity of Trinidad Northern Coast Region 60 Comment
  UC154196  Arctostaphylos columbiana Joseph Burtt Davy and Walter C. Blasdale 1899-5 Humboldt Fruitland Comment
  UC314644  Arctostaphylos columbiana Joseph P. Tracy 1924-3-9 6606 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC549500  Arctostaphylos columbiana J. E. Adams 1935-5-12 1046 Humboldt Patrick's Point 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
  RSA381132  Arctostaphylos columbiana var. columbiana Roman Gankin, W. Richard Hildreth 1967-10-26 1171 Humboldt 21.4 miles east of US 101 on Bald Hills Road from Orick. French Camp Ridge. Comment
  RSA46459  Arctostaphylos columbiana var. columbiana Doris K. Kildale 1927-3-25 3011 Humboldt Humboldt Hill Comment
  JEPS38946  Arctostaphylos hookeri subsp. montana Joseph P. Tracy 1935-6-23 13992 Humboldt French Camp Ridge 1066 Comment
  UCD51746  Arctostaphylos hookeri subsp. montana Joseph P. Tracy 1947-7-5 17787 Humboldt Trinity Summit; ridge top one mile west of Mud Springs. 1158 Comment
  NY42918  Arctostaphylos manzanita subsp. elegans J. B. Walker 1995-4-26 1389 Humboldt Six Rivers National Forest, Hwy 36, 2km W of Cobbs 800 Comment
  JEPS38928  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1937-4-3 15246 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC40063  Arctostaphylos nevadensis subsp. knightii Joseph P. Tracy 1936-8-2 15075 Humboldt French Camp Ridge 1066 Comment
  SEINET11995486  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
  HSC99104  Arctostaphylos nevadensis subsp. nevadensis C. Witte 2007-5-17 29 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. Near utility towers. 1483 Comment
  SEINET2028710 Image available Arctostaphylos tracyi H. E. Parks 1931-3-25 0917 Humboldt Near Patrick's Point Comment
  HSC71372  Arctostaphylos uva-ursi J. P. Smith 1971-10-6 4971 Humboldt End of Murray Rd. in McKinleyville. Comment
  UC1196867  Arctostaphylos uva-ursi Joseph P. Tracy 1947-8-31 17928 Humboldt near Samoa; Humboldt Bay 6 Comment
  UC1196869  Arctostaphylos uva-ursi Joseph P. Tracy 1901-4-14 1031 Humboldt Ocean Beach North Coast Region, Humboldt Bay Comment
  SEINET11984847  Arctostaphylos uva-ursi Unknown 1965-1 554 Humboldt 1.3 mi S of Samoa, Samoa Peninsula Comment
  CAS-BOT-BC526229  Arctotheca calendula G. D. Barbe; T. C. Fuller 1989-6-8 4321 Humboldt Larry Pries dairy, 3.4 mi W of Main Street, on Centerville Beach Road, Ferndale Comment
  HSC16901  Armeria maritima subsp. californica J. W. Johnson 1962-5-9 1337 Humboldt Arcata, stabilized ridge 3, Christenson Farm, Samoa Peninsula Comment
  HSC49504  Armeria maritima subsp. californica R. York 1979-4-13 222 Humboldt Just N of College Cove, 1 mi. N of Trinidad Comment
  SEINET7253518 Image available Armeria maritima subsp. californica Joseph P. Tracy 1927-1 8115 Humboldt Trinidad 3 Comment
  HSC44320  Arnica cernua Brad Klipfel 1975-6-17 669 Humboldt Horse Mtn. Comment
  HSC98121  Arnica cernua Cara Witte 2007-5-24 119 Humboldt Along National Forest 1. Approximately 1 mile south of intersection with 6N38 and 6N36. 1476 Comment
  HSC4693  Arnica discoidea J. P. Tracy 1935-7-23 14154 Humboldt Trinity Summit; lower end of Brett Hole Comment
  HSC33626  Arnica discoidea Thomas W. Nelson, Jane P. Nelson 1976-6-15 2730 Humboldt Growing on FS road N of Alder Springs 1524 Comment
  CAS-BOT-BC82648  Arnica latifolia Doris K. Kildale 1926-4-25 1808 Humboldt Sugar Bowl Mountain on old road [frm.] from Willow Creek to Hoopa Comment
  HSC100423  Arnica parviflora Carl C. Marshall Jun 1886 281 Humboldt Mud Spring Camp. Comment
  SEINET200928  Arrhenatherum elatius J. P. Tracy 1919-8-28 5184 Humboldt Eureka 0 Comment
  CAS-BOT-BC84834  Artemisia douglasiana Henry M. Pollard 1945-9-5 s.n. Humboldt Wilson Creek, Klamath River Canyon Comment
  SEINET201065  Artemisia pycnocephala J. P. Tracy 1909-7-18 3023 Humboldt Samoa Comment
  UC1199378  Artemisia suksdorfii Joseph P. Tracy 1939-5-28 16309 Humboldt coast bluffs s Centerville 60 Comment
  JEPS45626  Aruncus dioicus var. pubescens Joseph P. Tracy 1916-6-25 4749 Humboldt e of Trinidad (Redwood Creek); Northern Coast Ranges 152 Comment
  RSA78412  Aruncus sylvester Philip A. Munz 1952-6-25 17840 Humboldt S of Grizzly Creek, N Fork of Trinity River, N of Helena. 1006 Comment
  CHSC111  Asarum caudatum 1952-7-7 Humboldt Coastal. Comment
  HSC41836  Asarum caudatum Tom Duebendorfer 1977-4-23 10 Humboldt 2.5 mi S of Shelter Cove Rd. S Fork of Bear Creek at Wailaki Campground 561 Comment
  SEINET4069277 Image available Asarum caudatum O. M. Clark 1932-1 5319 Humboldt South Eureka. Comment
  CAS-BOT-BC400539  Asarum caudatum C. C. Harris; S. K. Harris 1936-6-14 652 Humboldt On Yager Road from Carlotta 457 Comment
  HSC34795  Asarum caudatum John Palmer 1975-4-9 297 Humboldt 40 yds. E of intersection of 17th at Bayview St., Arcata Comment
  POM279301  Asarum caudatum Lyman Benson 1928-7-12 s.n. Humboldt Weott Ranger Station. Mt.Range: Seaward N Coast; Watershed: South Fork Eel River. 61 Comment
  POM92404  Asarum caudatum L. R. Abrams 1922-6-25 s.n. Humboldt North of Mad River near Arcata Comment
  RSA114387  Asarum caudatum G. R. Campbell 1955-9-20 21468 Humboldt 4 mi. NE of Strongs Station (Van Duzen River) on Yager road Comment
  HSC3274  Asarum hartwegii D. E. Anderson 1965-5-8 3647 Humboldt About 3 mi. N of Willow Creek along rd. on E side of Trinity River. Comment
  HSC56462  Asclepias cordifolia Griswold, Butler 1979-7-12 7257 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  RSA46484  Asclepias cordifolia Doris K. Kildale 1925-7-2 963 Humboldt Bug creek 915 Comment
  UC154170  Asclepias cordifolia Harley P. Chandler June, 1901 1347 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  SEINET10857354  Asclepias fascicularis R. W. Schery, E. M. Curtis 1939-7-20 Schery 8 Humboldt West of Sequaia 914 Comment
  POM89846  Asclepias speciosa Chesnut, E. R. Drew 1888-7-22 s.n. Humboldt [Unspecified] Comment
  UC1222669  Asclepias speciosa Joseph P. Tracy 1950-7-6 19002 Humboldt 2 mi s Burr Valley (on the Albee Road) 1158 Comment
  HSC100386  Aspidium aculeatum var. californicum Carl C. Marshall Jun 1887 483 Humboldt Jewett Creek. Comment
  HSC100389  Aspidium rigidum var. argutum Carl C. Marshall Jun 1886 286 Humboldt Hoopa. Comment
  CAS-BOT-BC65939  Aspidotis densa Harley P. Chandler 1901-6-1 1380 Humboldt Hupa Indian Reservation 152 Comment
  HSC73807  Aspidotis densa M. A. Baker 1980-6-16 1927 Humboldt Near Monks Camp. 1097 Comment
  HSC100424  Aster foliaceus Carl C. Marshall Sep 1886 247 Humboldt Everywhere. Comment
  CAS-BOT-BC177267  Astragalus agnicidus Robin Bencie 1993-6-15 01 Humboldt Miranda, 2 mi. W. of Hwy. 101 on Bear Butte Road 500 Comment
  CAS-BOT-BC193136  Astragalus rattanii var. rattanii L. R. Abrams 1916-7-11 6056 Humboldt At mouth of Grizzly Creek on Van Duzen River Comment
  UCR37845  Astragalus umbraticus D. E. Anderson 1965-5-15 3694 Humboldt About 7 mi north of Hoopa on Bloody Camp Prairie Road. Comment
  HSC97997  Asyneuma prenanthoides Cara Witte 2007-7-9 454 Humboldt Grouse Mountain. Forest Service Road 5N04. 1/4 mile east of spring. 1554 Comment
  HSC55210  Athyrium filix-femina var. cyclosorum Walter Overton 1979-8-1 12341 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  HSC98869  Athyrium filix-femina var. cyclosorum Cara Witte 2008-8-5 995 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles E of intersection with National Forest 1. 1346 Comment
  HSC35725  Athyrium filix-femina var. cyclosorum Thomas W. Nelson 1975-1-16 1748 Humboldt E of HSU campus Comment
  CDA23295  Atriplex patula var. obtusa Gordon Leppig 1999-10-25 1266 Humboldt Eureka, PALCO Marsh Comment
  UC673039  Atriplex triangularis Harold E. Parks and Joseph P. Tracy 1934-10-13 11152 Humboldt Big Lagoon 3 Comment
  UC1103328  Avena barbata Joseph P. Tracy 1923-5-20 6217 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC181262  Avena barbata Joseph P. Tracy 1913-6-13 4114 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River, Dinsmore's 762 Comment
  HSC45052  Avena fatua R. Sutherland 1978-4-25 9 .25478 Humboldt 9 Comment
  HSC59241  Avena fatua Terry Roth 1979-5-29 100 Humboldt Arcata, on Alliance Rd. near Westwood Ct. Comment
  RSA10053  Avena fatua Joseph P. Tracy 1933-5-20 12229 Humboldt Cape Mendocino. Southwestern slopes, fronting the ocean, three miles south of point of the cape. Comment
  UC526702  Avena fatua Joseph P. Tracy 1930-6-29 8824 Humboldt Buck Mountain Northern Coast Ranges (lower foothills of nw slope) Comment
  UCD56261  Avena fatua A. H. Murphy 1951-4-2 8 Humboldt Alongside U.S. Hwy. 101. 1/4 mile south of Phillipville. Comment
  HSC9032  Avena sativa E. W. Styskel 1964-4-28 76 Humboldt End of Davis St. at the edge of Eel River in Rio Dell Comment
  HSC933  Azolla microphylla H. E. Parks 1925-6-24 2763 Humboldt Eureka, Comment
  SEINET10474443  Baccharis douglasii Mary Susan Taylor 1977-8-5 Taylor 1428 Humboldt Abundant around bridge over Eel River, at the turnoff from Hwy 1 to Ferndale, in Fernbridge. 2 Comment
  UC1199297  Baccharis pilularis Joseph P. Tracy 1939-10-7 16507 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC12350  Baccharis pilularis subsp. consanguinea Steve Dorei 1970-10-31 139 Humboldt Scotia Bluff area Comment
  HSC90230  Baccharis pilularis subsp. consanguinea L. Watson, J. Meninga Aug 1990 3 Humboldt Near Manilla. Mad River Slough and Dunes, 50 ft. from parking lot, E of trail Comment
  HSC5115  Baccharis pilularis subsp. pilularis Paul Shields 1955-9-29 Humboldt 1/2 mi. S of Fernbridge Comment
  HSC99035  Barbarea orthoceras Cara Witte 2007-6-13 248 Humboldt Forest Service Road 5N01, Ammon Ridge Road. 1525 Comment
  UC1198287  Barbarea orthoceras Joseph P. Tracy 1914-6-28 4516 Humboldt near Hydesville 60 Comment
  UC1198289  Barbarea orthoceras Joseph P. Tracy 1932-7-16 10642 Humboldt along creek in McKay Prairie 1524 Comment
  HSC6585  Barbarea verna D. E. Anderson 1962-3-31 1968 Humboldt Along new Hwy. 101, W side of Freshwater Lagoon Comment
  HSC99112  Barbarea verna Cara Witte 2008-7-16 903 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile S of intersection with National Forest 1. 1409 Comment
  CAS-BOT-BC145787  Beckmannia syzigachne Joseph P. Tracy 1928-6-24 8472 Humboldt Valley of South Yager Creek. 762 Comment
  POM41982  Bellis perennis Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  CAS-BOT-BC106351  Bellis perennis Mrs. H. C. Cantelow 1935-5-30 803 Humboldt 8 mi. n. of Orick 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
  HSC75816  Bensoniella oregona Bill Copeland 1980-7-2 315 Humboldt Near Snow Camp Mtn. 1311 Comment
  RSA125218  Bensoniella oregona S. Carlquist 1951-6-14 158 Humboldt Below Felt Plateau, on road to Snow Camp 1006 Comment
Read comments
Nov 8 2010
  HSC70747  Berberis aquifolium var. repens R. York 1980-5-17 536 Humboldt Near Le Perron Peak 1066 Comment
  HSC71607  Berberis aquifolium var. repens Gail Newton 1980-6-16 201 Humboldt Near Onion Mtn. 1280 Comment
  CAS-BOT-BC75676  Berberis nervosa L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek Road. Comment
  HSC100398  Berberis nervosa Carl C. Marshall Apr 1886 67 Humboldt Woods in redwood belt. Comment
  HSC28089  Berberis nervosa J. D. Ackerman 1973-4-29 77 Humboldt 2 mi. NE of Kneeland Comment
  HSC35612  Berberis nervosa Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2024 Humboldt Just E of Redwood National Park along Bald Hills Rd. Comment
  JEPS47776  Berberis nervosa Milo S. Baker 1923-7-31 187 Humboldt Lawrence Creek Comment
  SDSU13767  Berberis nervosa Harvey 1938-8-14 2318 Humboldt U.S. 299. Arcata-Willow Creek. Comment
  UC146103  Berberis nervosa J. P. Tracy 1904-4-17 2016 Humboldt immediate vicinity Eureka 0 Comment
  UC9754  Berberis nervosa Harley P. Chandler June, 1901 1286 Humboldt Hupa Indian Reservation; North Coast Ranges 1097 Comment
  CAS-BOT-BC75797  Berberis pinnata Doris K. Kildale 1926-6-27 2231 Humboldt Little Van Duzen River. On road for Bridgeville to Weaverville. 640 Comment
  RSA246849  Berberis pinnata R. F. Thorne, P. Everett 1965-8-5 35141 Humboldt 5.2 miles N of junction of Horse Mt. and Shelter Cove Roads. 457 Comment
  UC13491  Betula occidentalis Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  HSC102532  Bistorta bistortoides M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1518 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  CAS-BOT-BC66275  Blechnum spicant L. R. Abrams 1916-7-18 6103 Humboldt Arcata to Trinidad Comment
  HSC985  Blechnum spicant W. R. Brigham 1962-4-7 1 Humboldt S of Big Lagoon Comment
  UC672887  Blechnum spicant Joseph P. Tracy 1940-8-25 16718 Humboldt Bald Mt. 975 Comment
  JEPS53053  Boechera acutina Joseph P. Tracy 1932-7-11 10396 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UC562687  Boechera retrofracta Joseph P. Tracy 1935-7-30 14379 Humboldt Salmon Summit 2103 Comment
  HSC70782  Boschniakia strobilacea Gail Newton 1980-7-24 1768 Humboldt Near Somes Mtn. 1615 Comment
  HSC44566  Boschniakia strobilacea R. York 1978-5-18 173 Humboldt Near Bluff Creek Trail 671 Comment
  UC585961  Boschniakia strobilacea Joseph P. Tracy 1925-6-7 7059 Humboldt Northern Coast Ranges, Willow Creek Canyon. 609 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
  CAS-BOT-BC420273  Boykinia occidentalis Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  CAS-BOT-BC420274  Boykinia occidentalis Milo S. Baker 1923-9-19 84 Humboldt Canon near Carlotta Comment
  HSC100718  Brassica campestris Carl C. Marshall May 1886 206 Humboldt Fields. Comment
  HSC5216  Brickellia californica W. L. Jepson 1936-8-8 17865 Humboldt South Fork of Eel River, Richardson Grove Comment
  LA202097  Brickellia californica S. K. Harris; C. M. Wilder 1938-9-8 877 Humboldt bars on Van Duzen River, below Blue Slide Comment
  UC186059  Brickellia californica Joseph P. Tracy 1915-9-12 4674 Humboldt at the mouth of Laribee Creek (Eel River); Eel River 60 Comment
  UC1173667  Brickellia greenei Joseph P. Tracy 1939-8-16 16401 Humboldt Horse Mountain 1432 Comment
  HSC83441  Briza maxima R. N. Raynor 1935-5-22 Humboldt Ft. Seward Comment
  SEINET14395468  Briza maxima K. W. Parker 1931-5-15 1003 Humboldt 2 mi N of Blocksburg Comment
  CAS-BOT-BC145570  Briza minor Doris K. Kildale 1925-6-28 916 Humboldt Fleener Creek. Comment
  UC34059  Briza minor J. P. Tracy 1900-6-5 835 Humboldt Immediate vicinity of Eureka 0 Comment
  UCSB15651  Brodiaea coronaria Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  UC1197749  Brodiaea elegans subsp. elegans Joseph P. Tracy 1946-7-13 17615 Humboldt 5 mi e Carlotta (open flat by old Strong's District School House) 60 Comment
  HSC22043  Brodiaea elegans subsp. elegans D. G. Hauger 1967-7-15 22 Humboldt Shower Pass Rd., Kelly's turn off 915 Comment
  UC1197747  Brodiaea elegans subsp. elegans Joseph P. Tracy 1924-8-6 6780 Humboldt garden of Joseph P. Tracy, Eureka Comment
  UC666907  Brodiaea elegans subsp. elegans Joseph P. Tracy 1936-6-10 14925 Humboldt mountain slopes w of its mouth South Fork of Trinity River 304 Comment
  JEPS5498  Brodiaea stellaris Joseph P. Tracy 1925-5-30 7024 Humboldt on grassy slopes Northern Coast Ranges, McClellan Mountain 822 Comment
  RSA114096  Brodiaea stellaris Rimo C. Bacigalupi, Lincoln Constance 1951-6-13 3406 Humboldt Along State Highway 36, five miles east of Bridgeville. Comment
  SEINET12053853  Brodiaea stellaris J. P. Tracy 1950-1 18903 Humboldt McClellen Mt., just E of McClellen Rock, Burr Valley 762 Comment
  CAS-BOT-BC484612  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1936-5-30 14837 Humboldt In firm grassy flats, edge of sand dunes. Near Samoa, on Humboldt Bay 6 Comment
  CAS-BOT-BC144346  Bromus Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  UC1103276  Bromus carinatus var. carinatus J. P. Tracy 1900-5-28 817 Humboldt immediate vicinity of Eureka 0 Comment
  UC1103279  Bromus carinatus var. carinatus Joseph P. Tracy 1942-6-2 17097 Humboldt 2 mi n of Bridgeville 609 Comment
  UC526734  Bromus carinatus var. carinatus Joseph P. Tracy 1932-7-12 10449 Humboldt lamath Mountains, Trinity Summit, at Corral Prairie Corral Prairie; Klamath Mountains, Trinity Summit, Corral Prairie 1524 Comment
  CAS-BOT-BC149160  Bromus carinatus var. marginatus Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Mountain. 1524 Comment
  UC1103360  Bromus commutatus Joseph P. Tracy 12621 Humboldt 2 to 5 mi e of the South Fork (along Eel River, Camp Grant); Eel River, Camp Grant 45 Comment
  UC207700  Bromus commutatus Joseph P. Tracy 1917-6-24 4824 Humboldt along Eel River from South Fork to Scotia, Holmes Flat Eel River; Northern Coast Ranges, , Holmes Flat 60 Comment
  CAS-BOT-BC155993  Bromus diandrus Doris K. Kildale 1926-5-2 1902 a Humboldt Willows Creek Flat. 152 Comment
  HSC9296  Bromus diandrus R. J. Vernimen 1963-3-25 16 Humboldt Clam Beach Lagoons, along railroad tracks Comment
  HSC90694  Bromus hordeaceus Gail Newton 1982-6-5 3585 Humboldt Elk River Wildlife Area, Eureka. Comment
  HSC9253  Bromus hordeaceus R. J. Vernimen 1963-4-27 42 Humboldt 0.5 mi. off Samoa Rd., behind the Georgia-Pacific dump, 7.5 mi. SW of Arcata, along logging road Comment
  UC34065  Bromus hordeaceus J. P. Tracy 1901-6-16 1146 Humboldt immediate vicinity of Eureka 0 Comment
  UCD58817  Bromus hordeaceus A. H. Shunk 1923-7-12 s.n. Humboldt Briceland. Comment
  UC1103347  Bromus madritensis subsp. rubens Joseph P. Tracy 1932-4-3 9790 Humboldt near Englewood (North Coast Ranges); North Coast Ranges 91 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
  UC60194  Bromus secalinus Rob. Smalley 1901-8-20 Humboldt Blocksburg Comment
  CAS-BOT-BC161606  Bromus sterilis Joseph P. Tracy 1935-6-23 13980 Humboldt French Camp Ridge. 1066 Comment
  UC1103349  Bromus sterilis Joseph P. Tracy 1950-7-6 18985 Humboldt Buck Mountain, Burr Valley Burr Valley; Buck Mountain, Burr Valley 1066 Comment
  UC1145181  Bromus sterilis Joseph P. Tracy 1950-6-15 18776 Humboldt Mail Ridge 944 Comment
  UC204535  Bromus sterilis Joseph P. Tracy 1916-5-31 4701 Humboldt along Eel River from South Fork to Scotia, Stitz Creek Stitz Creek; Northern Coast Ranges, Eel River, Stitz Creek 60 Comment
  UC1145178  Bromus tectorum Joseph P. Tracy 1942-5-16 17330 Humboldt between Miranda and Garberville 152 Comment
  UC1199255  Cacaliopsis nardosmia Joseph P. Tracy 1908-6 2822 Humboldt nw slope of Buck Mountain Buck Mountain 1219 Comment
  RSA484551  Cakile edentula M. B. Dunkle 1936-8-18 4823 Humboldt Moonstone Beach. Comment
  CHSC32805  Cakile maritima Lora L. Anderson 1981-4-25 2 Humboldt Ca. 500 yds e of ocean, 0.5 mi w of hwy 101, 11.5 mi nw of Arcata, beach. 0 Comment
  HSC6610  Cakile maritima Francis Winter 1960-5-6 Humboldt Mouth of Mad River, N of Arcata Comment
  HSC58535  Calamagrostis koelerioides Overton, Butler 1979-7-23 9442 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  UC552719  Calamagrostis koelerioides Joseph P. Tracy 1935-7-24 14192 Humboldt near Ranger Station; Trinity Summit 1828 Comment
  UC1198379  Calandrinia ciliata Joseph P. Tracy 1930-6-8 8735 Humboldt Kneeland Prairie 762 Comment
  HSC104058  Calandrinia ciliata M. F. Norman 2015-4-11 16 Humboldt Arcata, Ma-le'l Dunes Comment
  HSC17630  Calandrinia ciliata C. A. Bontrager 1966-4-24 45 Humboldt 1834 Allard Ave., Eureka Comment
  JEPS42834  Callitriche heterophylla var. bolanderi W. L. Jepson 1936-8-17 17921 Humboldt 2.5 mi s Fields Landing Comment
  HSC98964  Calocedrus decurrens Cara Witte 2007-9-14 648 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1649 Comment
  UC1198260  Calocedrus decurrens Joseph P. Tracy 1912-8-1 3954 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC97969  Calochortus tolmiei Cara Witte, Michael Scott 2007-6-22 347 Humboldt Board Camp Mountain, jeep trail between Tri Board Camp and Fork Camp 1565 Comment
  RSA113893  Calochortus tolmiei E. K. Balls, Lee W. Lenz 1955-5-15 20738 Humboldt 13.5 miles SW from Ferndale along Old Coast road to Capetown. 335 Comment
  UC1103463  Calochortus tolmiei Joseph P. Tracy 1935-7-14 14074 Humboldt near Clear Lake; Grouse Mountain 1524 Comment
  UC1197675  Calochortus tolmiei Joseph P. Tracy 1927-6-12 8148 Humboldt Horse Mountain 1280 Comment
  UC146213  Calochortus tolmiei Joseph P. Tracy 1908-6-7 2612 Humboldt Butler Valley Northern Coast Ranges 152 Comment
  UC667125  Calochortus tolmiei Joseph P. Tracy 1927-5-8 7960 Humboldt Phillipsville 121 Comment
  HSC15330  Calochortus tolmiei D. E. Anderson 1962-5-1 2192 Humboldt 1 mi. E of junction of Redwood Creek road and road to Hoopa Comment
  UCD139586  Calochortus tolmiei Thomas W. Nelson; James L. Nelson 1980-6-10 5427 Humboldt along road to Red Mountain. 1371 Comment
  SEINET12054002  Calochortus vestae J. P. Tracy 1950-1 18868 Humboldt Dobbyn Creek, 3 mi NE of Alderpoint 152 Comment
  UC176638  Calochortus vestae Joseph P. Tracy 1913-6-17 4147 Humboldt nw slope Buck Mountain; Northern Coast Ranges 762 Comment
  UC1222580  Caltha biflora Joseph P. Tracy 1951-6-14 19408 Humboldt Snow Camp. 1402 Comment
  POM273040  Calycadenia ciliosa H. M. Pollard 1945-8-31 s.n. Humboldt Orleans to Somes Bar, east side of Klamath River. Comment
  UC1222961  Calycadenia fremontii Joseph P. Tracy 1948-9-20 18220 Humboldt Hoopa Valley 91 Comment
  UC205227  Calycadenia fremontii Joseph P. Tracy 1919-9-13 5188 Humboldt near Mouth of Willow Creek; Valley of Trinity River, Northern Coast Ranges 152 Comment
  UC1196476  Calypso bulbosa Joseph P. Tracy 1949-6-6 18303 Humboldt ne of Hawkins Bar (in Trinity Summit Range, Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  HSC38744  Calypso bulbosa M. Mesler, K. Mesler, J. D. Ackerman 1976-4-25 752 Humboldt Hwy. 36, E of Bridgeville, near tip of ridge W of Dinsmore Comment
  UC1196479  Calypso bulbosa Joseph P. Tracy 1913-6-25 4342 Humboldt opposite Buck Mountain (in Valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  UCD138889  Calypso bulbosa var. occidentalis R. Raynor 1936-3-21 s.n. Humboldt Fort Seward. Comment
  HSC97465  Calyptridium monospermum Cara Witte 2007-5-29 122 Humboldt Along National Forest 1. Approximately 4 miles south of intersection National Forest 1 and 5N04. 1441 Comment
  UC176994  Calystegia occidentalis subsp. occidentalis Joseph P. Tracy 1912-8-3 3974 Humboldt Valley Van Duzen River (opposite Buck Mountain, Northern Coast Ranges); Northern Coast Ranges, Valley of Van Duzen River, Buck Mount 762 Comment
  UC562491  Calystegia purpurata Joseph P. Tracy 1927-7-24 8298 Humboldt Upper Mattole 152 Comment
  CHSC23189  Calystegia soldanella Robert F. Thorne; P. Everett 1965-8-7 35217 a Humboldt Samoa Peninsula. 3 Comment
  HSC6361  Calystegia soldanella Francis Winter 1960-5-14 Humboldt Samoa Peninsula, 6 mi. W of Arcata Comment
  RSA603171  Calystegia soldanella D. D. Keck, Jens Clausen 1935-6-16 3384 Humboldt Mouth of Little River. Comment
  RSA232656  Calystegia soldanella Larry E. DeBuhr, Gary D. Wallace 1972-5-23 650 Humboldt Fresh Water Lagoon, 2.5 miles south of Orick on Hwy. 101. Comment
  HSC16448  Camissonia cheiranthifolia R. E. Hafenfeld 1965-5-9 26 Humboldt 1/2 mi. S of Squashan Creek near Gold Bluff Beach Rd. Comment
  UCR122368  Camissonia cheiranthifolia George K. Helmkamp, E. A. Helmkamp 2001-7-8 7021 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  HSC16444  Camissonia cheiranthifolia C. O. Baker 1962-5-7 31 Humboldt 1 mi. N of Samoa, 1/2 mi. E of coastline Comment
  POM72743  Camissonia cheiranthifolia subsp. cheiranthifolia P. A. Munz 1925-6-20 9891 Humboldt Clam Beach, 14 miles north of Eureka Comment
  UC1196941  Camissonia contorta Joseph P. Tracy 1901-4-14 1028 Humboldt Samoa Northern Coast Region, Humboldt Bay Comment
  CHSC19519  Camissoniopsis cheiranthifolia subsp. cheiranthifolia P. F. Yull 1966-4-28 129 Humboldt One mile south of Fairhaven. Sand dunes. Comment
  SEINET10939001  Campanula prenanthoides Overton 1979-7-24 OVERTON 9585 Humboldt Near Titlow Hill, on the Willow Creek quad., close to the town of Willow Creek 1250 Comment
  POM284844  Campanula prenanthoides Lyman Benson 1928-7-9 380 Humboldt Weott Ranger Station. Seaward N coast. Watershed- South Fork Eel Rivers. 61 Comment
  SEINET10939028  Campanula prenanthoides Klipfel 1974-7-23 KLIPFEL 467 Humboldt Horse Mountain, at junction of a draw and the saddle of the ridge. T6N R4E Sec. 27 SW 1/4 Comment
  HSC56399  Campanula scouleri Griswold, Butler 1979-7-11 6978 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  JEPS11743  Campanula scouleri Milo S. Baker 1923-7-20 52 Humboldt road from Redwood House to Yager 609 Comment
  SEINET10463685  Campanula scouleri Chesnut 1888-7-19 CHESNUT s.n. Humboldt PILOT RIDGE Comment
  SEINET10463751  Campanula scouleri James P. Smith 1977-7-3 Smith, Jr. 9250 Humboldt Six Rivers National Forest: along the road to Onion Lake, just above Blue Lake. T10N R4E Sec. 15 975 Comment
  SEINET10463754  Campanula scouleri Baker 1979-6-29 Baker 956 Humboldt Hopkin's Creek. T9N R5E Sec.3 760 Comment
  UC29021  Campanula scouleri C. C. Marshall 1886-1 Humboldt Comment
  JEPS53316  Cardamine angulata Joseph P. Tracy 1926-6-12 7588 Humboldt Prairie Creek Northern Coast Ranges, Prairie Creek 152 Comment
  UC161544  Cardamine breweri Joseph P. Tracy 1906-4-29 2432 Humboldt 2 mi from Fields Landing (s slope Humboldt Hill, region about Humboldt Bay); Northern Coast Region, about Humboldt Bay, Humboldt Hill 0 Comment
  CAS-BOT-BC37424  Cardamine californica Doris K. Kildale 1927-1-23 2974 Humboldt Van Duzen River at the Blue Shale. Comment
  UC160972  Cardamine californica J. P. Tracy 1911-4-2 3171 Humboldt immediate vicinity Eureka; immediate vicinity Eureka 0 Comment
  JEPS53400  Cardamine californica var. integrifolia Lincoln Constance 1934-5-26 651 Humboldt near Founders' Tree (North Dyerville Flat Grove, South Fork Eel River, Bull Creek Region); Bull Creek Region, South Fork Eel R, North Dyerville Flat gr 48 Comment
  POM266034  Cardamine californica var. integrifolia Lincoln Constance, Reed C. Rollins 1942-5-20 2998 Humboldt Eel River 1 mile N of Pepperwood. 46 Comment
  RSA0034558  Cardamine californica var. integrifolia Victor Duran 1933-5-11 3405 Humboldt Van Duzen River, near Bridgeville. Comment
  UC117854  Cardamine nuttallii J. W. Blankinship 1893-6-17 Humboldt Kneeland Comment
  UC492260  Cardamine nuttallii Joseph P. Tracy 1927-6-12 8129 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  HSC26791  Cardamine oligosperma Thomas W. Nelson 1971-4-27 426 Humboldt Along Jolly Giant Creek, HSU campus Comment
  HSC39987  Cardamine oligosperma Linda M. Barker 1976-3-22 1338 Humboldt 3 mi. W of Arcata Comment
  HSC64134  Cardamine oligosperma J. P. Smith, J. O. Sawyer 1973-5-12 6692 Humboldt 6.1 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC6641  Cardamine oligosperma Gerald T. Rood 1962-5-11 3 Humboldt Kneeland Rd., 0.25 mi. E of Barry Rd. Comment
  HSC6643  Cardamine oligosperma J. W. Johnson 1962-4-8 1219 Humboldt Arcata, Mad River Co. Park Comment
  CAS-BOT-BC384762  Cardionema ramosissimum L. R. Abrams 1916-7-18 6124 Humboldt Arcata to Trinidad Comment
  HSC37574  Cardionema ramosissimum J. D. Ackerman 1975-6-10 458 Humboldt 1 mi. N of Samoa bridge turnoff from Samoa Blvd., S of Manila Comment
  HSC96947  Carex abrupta Ryoko Ito, Shauna McDonald 2007-6-13 10 Humboldt 1 mi. from NF1 on FS 5N04 1601 Comment
  RSA32725  Carex aquatilis var. dives A. A. Heller 1930-8-4 s.n. Humboldt Little River. Comment
  CHSC85062  Carex arcta Gordon Leppig 2002-7-12 1785 Humboldt Pacific Lumber Company Land. L 35 Rd. 1/2 mile west of Fox Creek Road, west side of large swamp. 70 Comment
  UC79832  Carex arcta Joseph P. Tracy 1926-7-5 7723 Humboldt near Redwood House (on road to head of Yager); Northern Coast Ranges 609 Comment
  UC562313  Carex barbarae Joseph P. Tracy 1934-8-14 13587 Humboldt South Fork of Eel River, between Miranda and Redway 91 Comment
  HSC75765  Carex bolanderi Teresa Prendusi 1981-7-24 494 Humboldt Near Whiteys Peak 1585 Comment
  RSA246847  Carex buxbaumii Robert F. Thorne, Percy C. Everett 1965-8-9 35293 Humboldt Big Lagoon. 3 Comment
  UC562721  Carex concinnoides Joseph P. Tracy 1935-6-2 13922 Humboldt Big Lagoon 3 Comment
  CHSC82138  Carex cusickii Gordon Leppig 2001-6-16 1569 Humboldt North Coast Region; coastal wetlands. Big Lagoon County Park, Big Lagoon Bog. 3 Comment
  UC1115815  Carex cusickii Joseph P. Tracy 1938-7-6 16023 Humboldt Big Lagoon 6 Comment
  BLMAR357  Carex cusickii Jennifer Anthony-Wheeler 2003-7-23 357 Humboldt Headwaters Forest Reserve, growing in natural pond with large floating rafts of logs 426 Comment
  CAS-BOT-BC34973  Carex densa Joseph Prince Tracy 1936-6-3 14847 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC1103128  Carex echinata Joseph P. Tracy 1935-7-14 14085 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC74421  Carex echinata subsp. echinata Gail Newton 1980-8-10 2044 Humboldt Near Blake Mtn. 1707 Comment
  JEPS25978  Carex echinata subsp. echinata Joseph P. Tracy 1932-7-14 10567 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  HSC99593  Carex feta K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 254 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC43478  Carex feta Thomas W. Nelson 1976-7-9 2999 Humboldt Along W side of ridge S of E peak of Lassic Mtn., (Signal Peak). 1524 Comment
  CHSC85576  Carex fracta L. P. Janeway 2003-7-30 7942 Humboldt High North Coast Ranges. On northeast side of Titlow Hill Road, across form a small pond, on the map but un-named, 1.1 km south of Cold Spring. 1426 Comment
  UC249741  Carex globosa Joseph P. Tracy 1921-4-24 5448 Humboldt Phillipsville Northern Coast Ranges, South Fork of the Eel River 121 Comment
  UC834  Carex harfordii Harley P. Chandler May, 1901 1115 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 30 Comment
Read comments
Sep 15 2010
  CHSC2115  Carex hendersonii M. Anthony 1960-5-1 Humboldt Near Arcata. Comment
  CHSC40137  Carex hendersonii Lawrence Janeway 1982-6-17 9 Humboldt Ca 300 m w of main Arcata Community Forest rd along the rd to the HSU water tank. 137 Comment
  SEINET11631285  Carex hendersonii Unknown 1936-1 13479 Humboldt near Scotia Comment
  UCD140376  Carex hendersonii Victor Duran 1933-5-12 3412 Humboldt Bull Creek, at South Fork of the Eel River. Comment
  CAS-BOT-BC7565  Carex integra Joseph Prince Tracy 1935-7-23 14139 Humboldt Trinity Summit. Open places at Corral Prairie. 1584 Comment
  CAS-BOT-BC35566  Carex jonesii Joseph Prince Tracy 1932-7-15 10573 Humboldt Trinity Summit, at Corral Prairie 1584 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
  RSA246648  Carex lenticularis var. limnophila Robert F. Thorne 1965-9-19 35461 Humboldt Freshwater Lagoon S of Orick. 3 Comment
  CAS-BOT-BC31468  Carex leptopoda W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula. Comment
  UC562333  Carex lyngbyei Joseph P. Tracy 1927-7-16 8248 Humboldt near mouth Elk River (around Humboldt Bay); Northern Coast Region 3 Comment
  HSC102156  Carex microptera M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1064 Humboldt Patterson Meadows 1555 Comment
  HSC48134  Carex multicostata D. H. Norris 1971-7-17 19597 Humboldt At intersection of Kneeland-Bridgeville road and Redwood House road Comment
  HSC102159  Carex neurophora M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1069 Humboldt Patterson Meadows 1555 Comment
  HSC45968  Carex nudata J. P. Smith 1973-5-26 6846 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC70471  Carex nudata J. P. Tracy 1911-6-4 3221 Humboldt Along Little River, 5 mi. from coast 122 Comment
  CAS-BOT-BC119389  Carex obnupta T. G. W. s.n. Humboldt Arcata 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
  CHSC88894  Carex obnupta L. P. Janeway; B. Castro 2004-9-11 8321 Humboldt North Coast. Near blocked south end of Little River Road 0.4 km north of Central Avenue; near south end of Clam Beach. 5 Comment
  HSC7069  Carex obnupta S. J. Hawks, D. E. Anderson 1965-5-18 14 Humboldt 1/4 mi. W of Fairhaven Comment
  HSC37833  Carex obnupta Thomas W. Nelson 1976-3-4 2263 Humboldt Eureka, beside Buhne St. between S St. and Harrison Ave. Comment
  HSC91620  Carex obnupta E. Mackey 1986-6-16 Humboldt Patrick's Point State Park, beach N of Wedding Rock Comment
  SEINET10711645  Carex obnupta Robert F. Thorne 1965-8-7 Thorne 35199 Humboldt Big Lagoon; elev. c. 5 ft.; at edge of bog at S end of lagoon. Comment
  HSC48138  Carex ovalis D. H. Norris 1971-7-17 19601 Humboldt Along Redwood House Rd., about 3 mi. W of intersection with Kneeland-Bridgeville Rd. Comment
  RSA364776  Carex ovalis D. H. Norris 1971-7-17 19601 Humboldt Along Redwood House Road about 3 miles west of junction with Kneeland-Bridgeville Road. Comment
  CAS-BOT-BC119225  Carex pachystachya Joseph Prince Tracy 1935-6-23 13984 Humboldt French Camp Ridge. 1066 Comment
  UC1103088  Carex pachystachya Joseph P. Tracy 1926-5-15 7487 Humboldt Kneeland Prairie Northern Coast Ranges 762 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
  HSC98947  Carex pachystachya Cara Witte 2008-7-2 810 Humboldt Forest Service Road 4N38. 2 miles north of intersection to Board Camp Lookout. Near gate. 1401 Comment
  HSC90642  Carex pansa Gail Newton 1982-5-2 2517 Humboldt Elk River Wildlife Area, Eureka Comment
  HSC32420  Carex pansa Rudolf W. Becking 1974-6-15 Humboldt Between Samoa and Fairhaven, W of connecting road Comment
  RSA794382  Carex subbracteata P. F. Zika 2011-7-3 25493 Humboldt Titlow Hill Road, 3 road miles southeast of Route 299 at Berry Summit, 1 air km southwest of Horse Mountain. Outer North Coast Ranges. 1190 Comment
  RSA88833  Carex subbracteata Alice Eastwood, John Thomas Howell 1937-6-23 4808 Humboldt Little Van Duzen River. Comment
  SEINET7486520 Image available Carex subbracteata Peter F. Zika 2009-6-16 24497 Humboldt bove Chezen Road, at junction with Route 299, Outer North Coast Range (NCoRO), between Lord-Ellis and Berry summits 150 Comment
  HSC7080  Carex subbracteata B. D. Rogers 1965-9-10 1014 Humboldt Humboldt State College Reservoir 61 Comment
  CAS-BOT-BC116906  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell 1937-6-23 4822 Humboldt Bridgeville Comment
  CAS-BOT-BC116673  Carex subfusca Doris K. Kildale 1927-7-22 3826 Humboldt Lassecks Peaks, Coral Goat Camp. 1661 Comment
  JEPS109249  Carex subfusca D. W. Taylor 2007-7-11 20161 Humboldt Six Rivers National Forest, Horse Mountain, Titlow Hill Road at the junction with Forest Road 6N18. Comment
  CAS-BOT-BC116674  Carex subfusca Stuart Kimball Harris; J. P. Tracy; Harry Stanley Yates 1936-6-17 3447 Humboldt NW slopes of Buck Mountain. 822 Comment
  SEINET10880003  Carex subfusca David Castaner 1989-5-28 Castaner 8067 Humboldt Patrick Point SP area. Redwood forest. Comment
  NY11384  Carex tracyi J. P. Tracy 1914-7-4 4547 Humboldt "High Prairie" on Bald Mountain 1066.8 Comment
  SEINET3910196  Carex tracyi Thomas W. Nelson, Jane P. Nelson 1978-6-10 4418 Humboldt Eureka Quad. Second growth redwood forest behind Eureka Seventh Day Advent Church on F St.; 0 61 Comment
  UC8083  Carex tumulicola Harley P. Chandler June 1901 1416 Humboldt Klamath River North Coast Ranges 335 Comment
  POM248622  Carex unilateralis Joseph P. Tracy 1937-8-7 15618 Humboldt Bald Mt. 915 Comment
  UC1116270  Carex unilateralis Joseph P. Tracy 1946-5-30 17539 Humboldt near Bridgeville 457 Comment
  UC1196855  Castilleja Joseph P. Tracy 1929-7-4 8634 Humboldt French Camp Ridge 1066 Comment
  HSC45088  Castilleja affinis subsp. litoralis R. Sutherland 1978-4-25 11 Humboldt Bluff at Shelter Cove. 24 Comment
  JEPS3288  Castilleja affinis subsp. litoralis C. R. Bell 1952-5-3 1324 Humboldt 1.8 mi s Trinidad (and 1.8 mi n of Little River, to the w of Highway 101) Comment
  JEPS35822  Castilleja affinis subsp. litoralis Rimo Bacigalupi, and L. R. Heckard 8968 Humboldt hills above and w Cape Mendocino (about 20 mi n by road of Petrolia) Comment
  JEPS35843  Castilleja affinis subsp. litoralis Rimo Bacigalupi, and L. R. Heckard 8989 Humboldt just n Table Bluff lighthouse (s end of Humboldt Bay); Humboldt Bay Comment
  JEPS57403  Castilleja affinis subsp. litoralis L. R. Heckard with T. I. Chuang 1968-7-4 1979 Humboldt n end Big Lagoon Comment
  HSC1974  Castilleja ambigua subsp. humboldtiensis D. E. Anderson, N. Dennis 1965-6-8 100 Humboldt Along E edge of Humboldt Bay, 1 mi. S of Arcata Comment
  HSC49512  Castilleja ambigua subsp. humboldtiensis R. York 1979-5-18 299 Humboldt Around Humboldt Bay Comment
  OBI9388  Castilleja ambigua subsp. humboldtiensis Joseph P. Tracy 1938-7-15 16068 Humboldt Mouth of Eel River 3 Comment
  UC604635  Castilleja applegatei subsp. martinii Joseph P. Tracy 1932-5-22 10118 Humboldt between Miranda and Redway (South Fork of Eel River); North Coast Ranges, South Fork of Eel River 91 Comment
  CAS-BOT-BC255519  Castilleja applegatei var. pinetorum Duart V. Brown 1947-4-2 30 Humboldt Hillside just above river, near Sweed Creek, Trinity River 426 Comment
  HSC63879  Castilleja arachnoidea M. A. Baker 1979-6-27 928 Humboldt E of Oregon Creek Comment
  HSC20838  Castilleja attenuata R. T. Forester 1963-5-6 43 Humboldt 1 mi. S of Fairhaven on Samoa Rd. Comment
  UC673100  Castilleja exserta subsp. latifolia Joseph P. Tracy with Dr. F. W. Pennell 1940-7-6 16659 Humboldt w foot Table Bluff 6 Comment
  RSA518654  Castilleja litoralis L. R. Heckard, T. I. Chuang 1971-7-1 2667 Humboldt Slope at south end of Freshwater Lagoon, 2 miles southwest of Orick. Comment
  UC1173699  Castilleja miniata Joseph P. Tracy 1939-8-20 16429 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  UC582475  Castilleja pruinosa Joseph P. Tracy 1926-6-27 7676 Humboldt Horse Mountain; North Coast Ranges 1432 Comment
  UC902243  Castilleja pruinosa Joseph P. Tracy 1947-7-9 17847 Humboldt Horse Mountain 1432 Comment
  HSC99015  Castilleja pruinosa Cara Witte 2007-6-1 163 Humboldt Horse Mountain Botanical Area. Along Forest Service 6N38. 1311 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
  HSC99132  Ceanothus cordulatus Cara Witte 2008-10-18 1049 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1410 Comment
  CAS-BOT-BC49317  Ceanothus cuneatus Doris K. Kildale 1926-8-15 2538 Humboldt Hoopa Mountain near Old Mill 579 Comment
  UC170024  Ceanothus cuneatus var. cuneatus Harley P. Chandler June, 1901 1436 Humboldt Klamath River, North Coast Ranges 304 Comment
  CAS-BOT-BC49659  Ceanothus foliosus var. foliosus Joseph P. Tracy 1937-5-30 15314 Humboldt 3 miles south of Bridgeville 457 Comment
  JEPS82329  Ceanothus foliosus var. foliosus Roger Raiche 1983-7-18 30531 Humboldt King Peak Road, 2.4 mi N of road to Shelter Cove King Range 518 Comment
  HSC37051  Ceanothus incanus R. Sutherland 1975-5-8 4 .8575 Humboldt Wilder Ridge, near county rd. 8 mi SE of Honeydew, 8 mi W of Mattole River, bridge at Ettersburg 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
  UC1502128  Ceanothus incanus R. Sutherland 1975-5-13 1 Humboldt Shelter Cove at King Range sign Garberville Quad. Comment
  CHSC31293  Ceanothus integerrimus Mark Stopher 1980-6-4 107 Humboldt Near Elk River near Hwy 101 bridge. 1 Comment
  HSC18292  Ceanothus integerrimus Francis Winter 1960-5-7 Humboldt 1.0 mi. E of Hoopa along Hoopa-Willow Creek Hwy. 152 Comment
  JEPS42112  Ceanothus integerrimus Chesnut and Drew 1888-7-9 Humboldt Kneeland Prairie Comment
  OBI10458  Ceanothus integerrimus Carl B. Wolf 1937-8-13 9235 Humboldt North Coast Range, 8 mi E of Hoopa Valley on New road towards Trinity summit 1219 Comment
  RSA46885  Ceanothus integerrimus var. californicus Doris K. Kildale 1926-4-25 1813 Humboldt Hoopa Mt. Comment
  CHSC70041  Ceanothus oliganthus var. sorediatus J. R. McFarland 1997-4-10 Humboldt King Range National Conservation Area. 3.7 miles north on King Range road from Shelter cove road. 601 Comment
  CAS-BOT-BC51211  Ceanothus parryi Carl B. Wolf 1941-7-27 11086 Humboldt N. Coast Ranges, 5.8 mi. W. Maple Creek on Rd. Freshwater 609 Comment
  HSC36677  Ceanothus parryi R. Sutherland 1975-5-5 7 .5575 Humboldt Near Ettersburg Rd. 457 Comment
  HSC43179  Ceanothus parryi R. Sutherland 1975-6-19 2 .19675 Humboldt 2 mi NE of Briceland 178 Comment
  JEPS42237  Ceanothus parryi W. L. Jepson 1932-8-6 16491 Humboldt Weott 91 Comment
  UC502969  Ceanothus pumilus Joseph P. Tracy 1927-5-15 8056 Humboldt Hoopa Mountain. On road west from Hoopa Valley 914 Comment
  BLMAR284  Ceanothus thyrsiflorus Jennifer Anthony-Wheeler 1999-5-28 284 Humboldt King range, growing on strawberry Rock grazing allotment 304 Comment
  CAS-BOT-BC52219  Ceanothus thyrsiflorus Doris K. Kildale 1926-6-18 2399 Humboldt Gold Bluffs Comment
  CAS-BOT-BC52982  Ceanothus thyrsiflorus Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  CAS-BOT-BC52985  Ceanothus thyrsiflorus L. R. Abrams; J. T. Benson 1924-5-17 10731 Humboldt One mile north of Trinidad Head Comment
  RSA183618  Ceanothus velutinus D. E. Anderson 1965-5-1 3591 Humboldt 6.3 miles N of Hoopa along Hwy 96 Comment
  BLMAR256  Ceanothus velutinus Jennifer Anthony-Wheeler 1997-6-20 256 Humboldt King range, Last Sale rd to be decommisioned FY98 670 Comment
  SEINET200847  Centaurea melitensis Joseph P. Tracy 1908-6-27 2887 Humboldt Valley of the Van Duzen River opposite Buck Mountain 762 Comment
  CDA7304  Centaurea nigra Tario 1933-11-15 Humboldt Near Eureka. 0 Comment
  RSA12461  Centaurium muehlenbergii Carl B. Wolf 1934-6-30 5832 Humboldt One half mile from Briceland on road to Garberville. 91 Comment
  RSA54130  Centaurium muehlenbergii H. M. Pollard 1945-8-28 s.n. Humboldt Near Harley place, New Orleans. Comment
  UCD121519  Centaurium tenuiflorum Joseph P. Tracy 1948-8-22 18109 Humboldt Van Duzen River, 4 miles E. of Carlotta. 30 Comment
  CAS-BOT-BC384899  Cerastium arvense Doris K. Kildale 1928-4-29 5967 Humboldt Horse Mountain 853 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
  UC1198321  Cerastium fontanum subsp. vulgare Joseph P. Tracy 1900-5-28 809 Humboldt Eureka; Northern Coast Region, Eureka 0 Comment
  HSC4111  Cerastium fontanum subsp. vulgare Richard Steele 1962-5-2 24 Humboldt .25 mi. W of HSC campus 15 Comment
  UC535726  Cercocarpus betuloides var. betuloides Eleanor Armstrong 1934-8-22 1184 Humboldt Richardson Grove 121 Comment
  HSC95786  Chamaecyparis lawsoniana Will Ferrand 2002-4-27 32 Humboldt 1.0 mi. E of intersection of Hwy. 299 and Willow Creek Rd. 198 Comment
  UC1198973  Chamaesyce serpyllifolia Joseph P. Tracy 1920-8-15 5382 Humboldt Bluff Creek Northern Coast Ranges, Klamath River 152 Comment
  UC1198974  Chamaesyce serpyllifolia Joseph P. Tracy 1931-10-12 9728 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  CAS-BOT-BC68267  Cheilanthes gracillima Lincoln Constance; Reed C. Rollins 1942-5-12 2881 Humboldt Klamath-Siskiyou Region - Mouth of Bluff Creek, 6 miles northeast of Weitchpec. 152 Comment
  HSC99676  Cheilanthes gracillima Walter Overton, Marvin Butler 1979-7-25 9894 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  UC673036  Chenopodium pumilio Joseph P. Tracy 1931-10-12 9729 Humboldt Blue Slide Van Duzen River 91 Comment
  SD40327  Chenopodium strictum var. glaucophyllum Edith A. Purer 1932-7-30 4670 Humboldt South of Orick Comment
  HSC55230  Chimaphila menziesii G. L. Clifton, Griswold 1979-8-2 12431 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC154192  Chimaphila menziesii Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  CAS-BOT-BC451383  Chimaphila menziesii Doris K. Kildale 1925-7-5 1027 Humboldt Willow Creek, Trinity River Valley 152 Comment
  CAS-BOT-BC451384  Chimaphila menziesii Volney Rattan 1879-1-1 s.n. Humboldt Klamath Comment
  HSC54864  Chimaphila umbellata G. L. Clifton, Griswold 1979-7-25 10770 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  SEINET3992227  Chlorogalum pomeridianum Unknown 1946-7-7 17611 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC519308  Chrysolepis chrysophylla var. chrysophylla Joseph P. Tracy 1933-8-6 12933 Humboldt French Camp Ridge; Northern Coast Ranges 1066 Comment
  CAS-BOT-BC420628  Chrysosplenium E. A. McGregor 1921-8-17 118 Humboldt On old grade, S.E. of Orick Comment
  HSC55687  Circaea alpina subsp. pacifica Overton, Butler 1979-7-26 9970 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek. 1326 Comment
  HSC97984  Circaea alpina subsp. pacifica Cara Witte 2007-7-11 507 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  HSC16248  Circaea alpina subsp. pacifica B. D. Rogers, William J. Ferlatte 1966-6-15 2095 Humboldt E of Bridgeville on Hwy. 36 671 Comment
  CAS-BOT-BC284404  Cirsium arvense L. R. Abrams 1927-8-31 12059 Humboldt Arcata Comment
  HSC91921  Cirsium brevistylum E. Mackey 1987-9-5 Humboldt Patricks Point State Park; in dune area Comment
  RSA0070608  Cirsium douglasii var. douglasii Thomas W. Nelson 1976-7-9 2987 Humboldt Along 1S07 just west of summit. 1585 Comment
  SEINET5506147 Image available Cirsium douglasii var. douglasii John Thomas Howell 1937-7-31 13716 Humboldt 5 mi E of Berry Summit Comment
  UC1238036  Cirsium douglasii var. douglasii H. E. and S. T. Parks 1947-6-1 24441 Humboldt South Fork Camp Willow Creek Comment
  UC129598  Cirsium occidentale var. candidissimum Mrs. M. H. Manning Jul 20 1901-Jul 30 1901 Humboldt near Hupa; Bald Hill Comment
  UC1223062  Cirsium remotifolium Joseph P. Tracy 1941-8-12 16976 Humboldt 2 mi s of town of Field's Landing 6 Comment
  RSA0070876  Cirsium remotifolium Joseph P. Tracy 1921-7-31 5860 Humboldt Table Bluff. 121 Comment
  SEINET11833992  Cirsium remotifolium J. P. Tracy 1949-1 18472 Humboldt Kinsey Ridge, S from Grouse Mt., 2 to 6 mi, E of headwaters of Redwood Creek 1280 Comment
  UC582533  Cirsium remotifolium var. odontolepis Joseph P. Tracy 1930-7-21 8887 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  CAS-BOT-BC285770  Cirsium vulgare Henry M. Pollard 1945-9-4 s.n. Humboldt Near Camp Creek, Klamath River Canyon Comment
  SBBG4940  Clarkia amoena H. and M. Dearing 1939-6-24 3702 Humboldt near Dinsmore, E of Bridgeville Comment
  HSC78965  Clarkia davyi L. P. Janeway 1984-5-16 792 Humboldt N Spit of Humboldt Bay, on the W side of Samoa Road ca. 1/4 mi. NW of the boat ramp 3 Comment
  UC56307  Clarkia gracilis subsp. gracilis Joseph Burtt Davy 1899-6-21 5728 Humboldt Supply Creek Comment
  UC183693  Clarkia gracilis subsp. sonomensis Joseph P. Tracy 1913-6-11 4091 Humboldt lower foothills on nw slope Buck Mountain; Northern Coast Ranges 762 Comment
  BLMAR7  Clarkia gracilis subsp. tracyi Fredric Hrusa 1993-6-17 7 Humboldt Red mountain, small colony summit of rd thru serpentine.Uncommon 900 Comment
  JEPS43554  Clarkia purpurea subsp. quadrivulnera W. L. Jepson 1932-8-8 16490 Humboldt below Chaney Ranch; Grasshopper Peak 822 Comment
  UC1196978  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1937-7-5 15372 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC180230  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1914-7-5 4569 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC41230  Claytonia lanceolata Brad Klipfel 1974-5-8 318 Humboldt Horse Mtn. Comment
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Sep 23 2019
  UC161026  Claytonia perfoliata subsp. perfoliata Joseph P. Tracy 1906-4-29 2429 Humboldt near Field's Landing (Humboldt Bay Region); Northern Coast Region, Humboldt Bay Region 0 Comment
  UC161029  Claytonia rubra subsp. depressa Joseph P. Tracy 1911-4-30 3175 Humboldt Eureka; Northern Coast Region Comment
  HSC17728  Claytonia sibirica D. E. Anderson 1961-8-11 1725 Humboldt Redwood preserve E of HSU campus 30 Comment
  HSC54539  Claytonia sibirica Overton, Butler 1979-7-23 9515 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC55205  Claytonia sibirica Walter Overton 1979-8-1 12323 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  SD113970  Claytonia sibirica Darley F. Howe 1962-5-22 3261 Humboldt 3 miles east of Orick on Bald Mountain Road 395 Comment
  UC412615  Claytonia sibirica Mrs. M. H. Manning Humboldt near Hupa Comment
  UC672992  Claytonia sibirica Joseph P. Tracy 1936-8-24 15174 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  HSC17717  Claytonia washingtoniana R. E. Hafenfeld 1965-4-29 38 Humboldt 1/4 mi. N Squashan Creek near Gold Bluff Beach Rd. Comment
  UCD40028  Clinopodium douglasii Rodney Gale Myatt 1971-9-17 1107 Humboldt near Phillipsville, above river, about 8 miles north of Gaberville, along Hwy 101. Comment
  CAS-BOT-BC499337  Clintonia andrewsiana Mrytle Paulson 1918-4-28 s. n. Humboldt Eureka Comment
  SEINET12050373  Clintonia andrewsiana F. H. Utech 1988-1 88 -295 Humboldt 1.5 mi N of Orick on US 101 & 0.5 mi SE on Bald Hills Rd enroute to Schoolhouse Peak 400 Comment
  POM210220  Collinsia grandiflora H. E. Parks, Joseph P. Tracy 1930-5-25 741 Humboldt Laribee Valley. 762 Comment
  UC169092  Collinsia grandiflora Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5673 Humboldt ridge w Hoopa Valley (Hoopa Mt summit); Hoopa Mtn, North Coast Ranges Comment
  HSC66827  Collinsia greenei M. A. Baker 1980-7-11 2808 Humboldt Near Red Mtn. 1433 Comment
  JEPS26343  Collinsia heterophylla Joseph P. Tracy 1914-5-14 4464 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  UC1196751  Collinsia heterophylla Joseph P. Tracy 1927-5-8 7988 Humboldt vicinity of Garberville 121 Comment
  JEPS7425  Collinsia linearis Joseph Burtt Davy and Walter C. Blasdale 1899-5 5682 Humboldt Hupa Mt.; North Coast Ranges Comment
  RSA21322  Collinsia linearis Carl B. Wolf 1937-8-13 9216 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  RSA60814  Collinsia linearis Frank W. Gould 1939-5-30 831 Humboldt Southwestern side of Horse Mountain. 762 Comment
  UCR45410  Collinsia parviflora Barry Silver 1986-4-23 535 Humboldt North Coast Range, Bair Road, 9.5-10 mi NW of the junction with Hwy 299; Pine Ridge Summit Area 997 Comment
  HSC31203  Collinsia rattanii D. E. Anderson 1972-6-20 5744 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. 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
  UC1196840  Collinsia rattanii Joseph P. Tracy 1923-6-24 6353 Humboldt Northern Coast Ranges, Bald Mountain, High Prairie High Prairie; Northern Coast Ranges, Bald Mountain, High Prairie 1066 Comment
  UC582446  Collinsia torreyi var. wrightii Joseph P. Tracy 1933-7-16 12777 Humboldt near McKay Camp (South Fork Mountain); South Fork Mountain 1676 Comment
  JEPS71020  Collomia grandiflora Joseph P. Tracy 1932-7-13 10501 Humboldt open places Trinity Summit, Corral Prairie 1584 Comment
  BLMAR164  Collomia heterophylla Donald Hazlett 1994-6-7 164 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC97480  Collomia heterophylla Cara Witte 2007-5-31 146 Humboldt Off National Forest 1. Near Board Camp Mountain. Approximately 4 miles south of Brays Opening and 1/2 west of road. 1489 Comment
  RSA183510  Collomia heterophylla D. E. Anderson 1965-5-8 3639 Humboldt About 2 miles north of Willow Creek on road running along east side of Trinity River. Comment
  UC1197837  Collomia heterophylla Joseph P. Tracy 1947-7-5 17791 Humboldt ridge top one mi w Mud Springs; Trinity Summit 1158 Comment
  UCR111241  Collomia heterophylla H. E. Parks 1933-1 01152 Humboldt North Coast, Spruce Cove, Trinidad 76 Comment
  JEPS71046  Collomia heterophylla Lincoln Constance 1934-5-24 628 Humboldt forest bordering e side lower Look Prairie; Bull Creek Area 45 Comment
  SBBG103147  Collomia tracyi D. H. Wilken with C. Donahue 1976-7-16 12708 Humboldt Horse Mtn Natural Area, N of Berry Summit 1310 Comment
  UC978536  Collomia tracyi Joseph P. Tracy 1932-7-12 10468 Humboldt head of Brett Hole Trinity Summit (rocky exposed places) 1828 Comment
  JEPS23516  Coptis laciniata Joseph P. Tracy 1941-4-8 16856 Humboldt Willow Creek Canyon; along Trinity Hwy 762 Comment
  CAS-BOT-BC133716  Corallorhiza Doris K. Kildale 1928-3-29 4367 Humboldt Field redacted by CAS, contact the data manager for more information Comment
  JEPS64327  Corallorhiza maculata Virginia P. Fox July, 1919 Humboldt Bald Mountain Comment
  RSA249377  Corallorhiza maculata D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5562 Humboldt Westward lower slopes of Black Lassic near Trinity County line 1585 Comment
  HSC16581  Corallorhiza mertensiana D. E. Anderson 1965-6-1 3781 Humboldt Near Brush Mtn. lookout 1189 Comment
  HSC83034  Cordylanthus maritimus subsp. palustris A. L. Eicher 1985-8-17 Humboldt Marsh bordering Humboldt Bay, 0.2 mi. S of the mouth of Jacoby Creek. 1 Comment
  HSC90780  Cordylanthus maritimus subsp. palustris Peter Sorensen 1976-6-16 Humboldt Woodley Island. Comment
  UC175787  Cordylanthus maritimus subsp. palustris Joseph P. Tracy 1912-6-16 3697 Humboldt Hookton Northern Coast Region, Region about Humboldt Bay (salt marsh) 0 Comment
  JEPS32995  Cordylanthus tenuis subsp. viscidus Freed W. Hoffman 1949-7-14 3063 Humboldt Pine Point Ridge sw Mt. Lassic Lookout; North Coast Ranges Comment
  RSA21672  Cordylanthus tenuis subsp. viscidus Carl B. Wolf 1937-8-13 9225 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  CAS-BOT-BC101147  Corethrogyne filaginifolia W. R. Dudley 1899-6-1 s.n. Humboldt Eureka [Penninsula] Peninsula Comment
  HSC99585  Cornus nuttallii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 250 Humboldt Near North Trinity Mtn, Government Trail, near Box Camp, Six Rivers National Forest. 1460 Comment
  UC183572  Cornus sericea subsp. sericea Joseph P. Tracy 1912-10-20 4010 Humboldt Alton Northern Coast Region, Alton 30 Comment
  RSA273346  Cornus sessilis J. P. Smith, J. O. Sawyer, Smith 1976-5-2 8619 Humboldt 3.7 miles north of junction with State Route 299 on State Route 96. 61 Comment
  UC502984  Cornus sessilis Joseph P. Tracy 1927-3-27 7857 Humboldt near S. Fork Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 182 Comment
  UC902054  Corylus californica Joseph P. Tracy 1949-2-27 18265 Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC180313  Corylus cornuta subsp. californica L. B. Kildale 1926-9-5 2638 Humboldt Lasseck's Peaks - on trail between Canal Goat Camp and Red Peak 1676 Comment
  CAS-BOT-BC180314  Corylus cornuta subsp. californica L. B. Kildale 1927-7-10 3734 Humboldt Gans Prairie - Bold Hills road Comment
  CAS-BOT-BC176451  Cotoneaster simonsii Peter F. Zika 2007-7-19 23174 Humboldt Hookton Road, S end of Humboldt Bay, (NCo, North Coast) 10 Comment
  UC1199280  Cotula australis J. P. Tracy 1901-3-16 994 Humboldt Eureka Comment
  HSC5426  Cotula coronopifolia R. Spellenberg 1964-6-15 412 Humboldt Along egde of Humboldt Bay, on the south side of Arcata Comment
  UC198581  Crassula aquatica Joseph P. Tracy 1916-5-31 4705 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC1763986  Crataegus monogyna P. F. Zika 1995-5-1 12314 Humboldt 0.5 mi E of Ferndale (S of Grizzly Bluff Rd., S of and above cemetary) 60 Comment
  HSC5439  Crepis acuminata J. P. Tracy 1926-6-20 7621 Humboldt Horse Mt. Comment
  SD148248  Crepis capillaris G. K. Helmkamp, E. A. Helmkamp 2001-7-8 6998 Humboldt North coastan strand; north spit of Samoa Peninsula, 0.5 mile north of California Highway 255 bridge over Humboldt Bay. 6 Comment
  UC1787278  Crepis capillaris G. K. Helmkamp, E. A. Helmkamp 2001-7-8 6992 Humboldt North coast redwood area; CA-36, along the Van Duzen R. 19.6 mi E of US-101 (W of Bar W rd). 137 Comment
  RSA32733  Crepis capillaris A. A. Heller 1923-7-9 13777 Humboldt Near Blue Lake, 5 miles from Arcata. Comment
  UC176476  Crepis occidentalis Joseph P. Tracy 1913-6-21 4256 Humboldt near summit of ridge between Van Duzen River and Mad River; Northern Coast Ranges, Dinsmore's Ranch 1066 Comment
  CAS-BOT-BC290848  Crepis pleurocarpa Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  UC581728  Crepis pleurocarpa Joseph P. Tracy 1933-8-30 13033 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC91877  Crocosmia X crocosmiiflora E. Mackey 1986-10-7 Humboldt Patrick's Point State Park, picnic area near parking lot for Ceremonial Rock Comment
  RSA167430  Crocosmia X crocosmiiflora Joseph P. Tracy 1950-8-31 19344 Humboldt Garden escape at 3rd and I streets. Eureka. Comment
  UCD138688  Crocosmia X crocosmiiflora T. C. Fuller 1968-7-30 17446 Humboldt northwest corner of overpass of Hwy 101 freeway to Garberville, 1 mile south of Fields Landing. 1524 Comment
  UC525589  Cryptantha flaccida Joseph P. Tracy 1930-6-15 8750 Humboldt near Bosworth's; Northern Coast Ranges, Larrabee Creek 457 Comment
  UC32552  Cryptantha flaccida Hy-Am Pum Jul 1888 Humboldt Comment
  UC594155  Cryptantha flaccida S. K. Harris, J. P. Tracy, and H. S. Yates 1936-6-17 3424 Humboldt nw slopes Buck Mountain 822 Comment
  UC525586  Cryptantha leiocarpa Joseph P. Tracy 1932-5-10 9939 Humboldt s of point of Cape Mendocino (near ocean shore); Cape Mendocino 3 Comment
  JEPS18415  Cryptantha milobakeri Joseph P. Tracy 1932-6-14 10141 Humboldt w of mouth of South Fork of Trinity River; North Coast Ranges 609 Comment
  UC562675  Cuscuta occidentalis Joseph P. Tracy 1930-8-17 9160 Humboldt Big Lagoon 3 Comment
  HSC6400  Cuscuta salina J. Wendell Howe 1934-7-18 988 Humboldt Humboldt Bay 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
  UC525558  Cynoglossum grande Joseph P. Tracy 1927-6-12 8154 Humboldt lower slopes Horse Mt.; Northern Coast Ranges, Horse Mt. 1219 Comment
  UCD60124  Cynosurus cristatus A. H. Murphy 1949-6-29 s. n. Humboldt ca. 1.5 miles north of Loleta, H. Perrots Ranch, Table Bluff. Comment
  UCD60128  Cynosurus cristatus Malcolm A. Nobs; S. Galen Smith 1949-8-3 1195 Humboldt Southern outskirts of Eureka. Comment
  HSC26617  Cynosurus echinatus J. P. Smith, Steve Selva 1970-6-14 3827 Humboldt Along Hwy. 96 at Whitmore Creek. 152 Comment
  UC1145091  Cynosurus echinatus Joseph P. Tracy 1947-6-8 17708 Humboldt 5 mi e Carlotta (by old Strong's District School House); e of Carlotta 60 Comment
  JEPS64087  Cyperus bipartitus Joseph P. Tracy 1931-9-7 9664 Humboldt Trinity R. Valley at Willow Creek; Trinity R, Valley, Willow Creek 152 Comment
  UC213325  Cyperus bipartitus Joseph P. Tracy 1920-8-15 5366 Humboldt Klamath R. at mouth of Bluff Creek; Northern Coast Ranges, Klamath R. 152 Comment
  HSC7216  Cyperus eragrostis J. P. Tracy 1935-7-17 14099 Humboldt Trinity River Valley at Willow Creek 152 Comment
  CAS-BOT-BC114267  Cyperus esculentus Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans. 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
  HSC100390  Cystopteris fragilis Carl C. Marshall 454 Humboldt Road between Harris and Garberville. Comment
  CSUSB1619  Cytisus monspessulanus Keith Thompson 1972-3-27 Humboldt Maple Cr. 853 Comment
  CAS-BOT-BC201008  Cytisus scoparius Henry M. Pollard 1947-8-26 s.n. Humboldt Near Orleans Comment
  HSC14671  Cytisus scoparius Harvey Doerksen 1962-5-22 26 Humboldt .5 mi. E of Hwy. 299-101 junction. Comment
  CAS-BOT-BC189763  Dactylis glomerata Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  CAS-BOT-BC189764  Dactylis glomerata F. W. Peirson 1933-7-12 3655 Humboldt 5 miles north of Orick. Comment
  HSC97571  Danthonia californica Cara Witte 2007-6-7 230 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  UC526850  Danthonia californica Joseph P. Tracy 1934-7-12 13377 Humboldt Big Lagoon 3 Comment
  UC1103261  Danthonia californica var. americana Joseph P. Tracy 1925-7-5 7161 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  UC552732  Danthonia californica var. americana Joseph P. Tracy 1935-5-25 13853 Humboldt Fort Seward 106 Comment
  UC303173  Darmera peltata Joseph P. Tracy 1923-4-15 6180 Humboldt Redwood Creek Northern Coast Ranges (at Berry's) 274 Comment
  UC1197353  Daucus pusillus Harley P. Chandler May, 1901 1154 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 3 Comment
  UC154246  Daucus pusillus Joseph P. Tracy 1909-8-1 3057 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC154249  Daucus pusillus J. P. Tracy 1909-7-18 3021 Humboldt sand hills of Ocean Beach at Samoa opposite Eureka Comment
  UC1197354  Daucus pusillus J. P. Tracy 1907-7-4 2579 Humboldt 1/2 mi. n. mouth of Little River Comment
  UC201613  Delphinium decorum subsp. tracyi Joseph P. Tracy 1918-5-28 4941 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC27069  Delphinium decorum subsp. tracyi D. E. Anderson 1965-4-24 3533 Humboldt Along Titlow Hill Rd. Comment
  HSC97177  Delphinium decorum subsp. tracyi Benjamin Hart, Erin Lonergan 2007-6-4 2 Humboldt Grouse Mtn., Coldsprings Camp, 6.5 mi. up Titlow Hill Rd. 1372 Comment
  HSC75491  Delphinium depauperatum J. O. Sawyer 1980-7-18 3632 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC24965  Delphinium hesperium R. Spellenberg 1965-6-14 1139 Humboldt 13 mi. W of Willow Creek along Hwy. 299 Comment
  SEINET6907329  Delphinium hesperium W. P. Vestal, A. G. Vestal 1937-6-20 s.n. Humboldt About 4 miles north of Petrolia. Comment
  CHSC53294  Delphinium nudicaule L. P. Janeway 1984-5-13 774 Humboldt Along the Kneeland/Bridgeville Road ca 15 mi east of the Kneeland post office just past Lone Star Junction. On a roadcut near Lone Star Creek. 609 Comment
  UC1225744  Delphinium nudicaule Joseph P. Tracy 1946-6-15 17565 Humboldt lower slopes Horse Mountain 1066 Comment
  HSC67210  Delphinium nuttallianum Thomas W. Nelson, James Nelson 1980-6-10 5438 Humboldt Along E side of Red Mtn. 1372 Comment
  HSC48786  Delphinium trolliifolium Brad Klipfel 1975-6-17 661 Humboldt Along Titlow Hill Rd. Comment
  UC1126089  Delphinium trolliifolium A. E. Wieslander 1931-5-21 210 Humboldt Kneeland China Flat Quadrangle Comment
  HSC37428  Delphinium trolliifolium D. W. Snell 1964-4-18 49 Humboldt Mad River bottom, 3 mi. N of Blue Lake Comment
  JEPS23301  Delphinium trolliifolium W. L. Jepson 1934-5-6 16681 Humboldt Little Larrabee Creek Comment
  UCSB2009  Delphinium trolliifolium Keator, Glenn 1958-6-18 Humboldt Near Kneeland Comment
  UCD63743  Deschampsia cespitosa subsp. holciformis R. Tofsrud 1949-7-1 Humboldt Between Scotia and Capetown. Comment
  UC552716  Deschampsia danthonioides Joseph P. Tracy 1935-6-23 13969 Humboldt French Camp Ridge 1066 Comment
  UC187265  Deschampsia elongata Joseph P. Tracy 1908-6 2710 Humboldt opposite Buck Mt. Buck Mt.; Northern Coast Ranges, valley of Van Duzen R. 762 Comment
  UCD114654  Descurainia incisa subsp. incisa Joseph P. Tracy 1947-8-24 17921 Humboldt Trinity Summit, near Box Camp, along trail to Waterdog Lakes. 1676 Comment
  HSC98873  Dianthus armeria Cara Witte 2007-8-1 618 Humboldt Friday Ridge Road (Forest Service Road 6N08). Approximately 1.25 miles northeast of intersection with Friday Camp. 1222 Comment
  UC1362289  Dicentra formosa Kingsley R. Stern 1964-6-13 2106 Humboldt 2.3 mi w U.S. Highway 101 (on e bank of Redwood Creek); Redwood Creek Comment
  UC1362290  Dicentra formosa Kingsley R. Stern 1964-6-13 2106 Humboldt 2.3 mi w U.S. Highway 101 (on e bank of Redwood Creek); Redwood Creek Comment
  HSC98538  Dicentra pauciflora Cara Witte 2008-6-9 703 Humboldt Off National Forest 1, near Board Camp Mountain. Approximately 4 miles south of Brays Opening and 1/2 mile west of the road. 1506 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-BC209194  Dichanthelium acuminatum subsp. acuminatum Joseph P. Tracy 1931-5-17 9427 Humboldt Along river, Willow Creek, Trinity River Valley. 152 Comment
  UC176178  Dichelostemma capitatum Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3614 Humboldt near Hydesville; Northen Coast Region 30 Comment
  SEINET12053835  Dichelostemma capitatum J. P. Tracey 1951-1 19404 Humboldt toward Ashfield Butte, Kneeland Prairie Comment
  HSC39057  Dichelostemma capitatum subsp. capitatum Thomas W. Nelson, Jane P. Nelson 1976-5-31 2643 Humboldt N of junction of FS Rds. 1S07 and 5E27 along 5E27 1524 Comment
  POM161059  Dichelostemma capitatum subsp. capitatum Joseph P. Tracy 1925-5-30 7028 Humboldt Laribee Valley. 701 Comment
  CAS-BOT-BC501018  Dichelostemma ida-maia L. R. Abrams 1918-6-15 7108 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  CAS-BOT-BC501020  Dichelostemma ida-maia D. E. Breedlove 1961-7-4 649 Humboldt 10.9 miles west of Willow Creek on US 299 822 Comment
  CAS-BOT-BC501026  Dichelostemma ida-maia H. D. Ripley; R. C. Barneby 1945-6-16 6810 Humboldt S. of Weott 91 Comment
  HSC3027  Dichelostemma ida-maia H. E. Parks, S. T. Parks Jun 1928 259 Humboldt Gills 305 Comment
  SJSU912  Dichelostemma ida-maia J. W. Tilden 1946-6-20 1008 Humboldt Bluff Creek c. 1.5 mi above junction with Klamath River Comment
  UC1198179  Dichelostemma ida-maia Frank A. Graham 1935-7-27 Humboldt lower end Crogan Hole; Trinity Summit 1463 Comment
  UC1222688  Dichelostemma ida-maia Joseph P. Tracy 1950-7-1 18957 Humboldt near Friday Camp (on Friday Ridge); North Coast Ranges, Grouse Mountain 1219 Comment
  HSC35967  Dichelostemma multiflorum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-21 1951 Humboldt Hwy. 36, 5 mi. E of Bridgeville Comment
  CHSC1743  Digitalis purpurea M. Anthony 1960-5-14 Humboldt N. of Arcata, Highway 101. Comment
  CAS-BOT-BC150338  Diplacus aurantiacus Doris K. Kildale 1927-5-15 3244 Humboldt Petrolia, back of Mattole River Comment
  CAS-BOT-BC153238  Diplacus kelloggii Doris K. Kildale 1926-4-10 1786 Humboldt Bug Creek 792 Comment
  SEINET4170364  Disporum smithii Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-6-8 15086 Humboldt Under Redwood, Bolling Grove State Park Comment
  JEPS9492  Dodecatheon hendersonii Joseph P. Tracy 1927-5-15 8061 Humboldt near summit on road w from Hoopa to Bair's; Northern Coast Ranges, Hoopa Mountain 1066 Comment
  UC179933  Downingia cuspidata Joseph P. Tracy 1914-5-14 4468 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  JEPS14453  Downingia elegans Joseph P. Tracy 1927-7-17 8270 Humboldt Three Cabins, on lower w foothills of Chaparral Mountain North Coast Ranges, Chaparral Mountain 457 Comment
  JEPS53536  Draba verna Joseph P. Tracy 1922-4-2 5986 Humboldt near Carlotta (Van Duzen River bar); Northern Coast Ranges, , nr Carlotta 30 Comment
  RSA79374  Draba verna E. K. Balls, Lee W. Lenz 1952-5-12 17200 Humboldt 0.6 mi E of Dinsmore along Hwy 36 from Alton to Red Bluff. Comment
  UC1198694  Drymocallis glandulosa Joseph P. Tracy 1910-6-19 3154 Humboldt region about Humboldt Bay (near Forks of Elk River); Northern Coast Region, near Forks Elk River 0 Comment
  UC1198693  Drymocallis glandulosa var. glandulosa H. E. Parks and Joseph P. Tracy 1931-5-17 10085 Humboldt Trinity River at Willow Creek; Northern Coast Ranges, Trinity River at Willow Creek 152 Comment
  UC492180  Drymocallis rhomboidea Joseph P. Tracy 1927-5-14 8002 Humboldt near South Fork Trinity River (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  POM188328  Dryopteris expansa Marcus E. Jones 1931-8-2 29171 Humboldt Klamath Comment
  HSC41210  Dysphania botrys Thomas W. Nelson, Jane P. Nelson 1977-9-3 3724 Humboldt Along Forest Service Rd. to N of Alder Springs 1524 Comment
  HSC45062  Dysphania botrys R. Sutherland 1976-8-13 15 .13876 Humboldt Redwood Creek, Whittemore Grove. 87 Comment
  HSC98715  Dysphania botrys Cara Witte 2007-8-1 617 Humboldt Friday Ridge Road (Forest Service Road 6N08). 1/4 mile east of intersection with Friday Camp. 1297 Comment
  SEINET5227018 Image available Dysphania botrys Unknown 2002-8-17 81 Humboldt On gravel bar in Eel River, 10 miles S of Garberville onHwy 101, at Benbow Drive. Comment
  UCD61098  Echinochloa muricata Martin Pontoni 1925-11-14 Humboldt Eureka. Comment
  RSA246898  Eleocharis acicularis var. gracilescens Robert F. Thorne, Percy C. Everett 1965-8-9 35326 Humboldt Clam Beach County Park: along highway. 3 Comment
  UC668024  Eleocharis macrostachya Joseph P. Tracy 1934-7-20 13463 Humboldt Big Lagoon 3 Comment
  HSC77865  Eleocharis parvula L. J. Heflin 1984-5-13 5 Humboldt Hauser Marsh Comment
  CAS-BOT-BC197347  Elymus L. R. Abrams 1918-6-16 7137 Humboldt Willow Creek Comment
  HSC99108  Elymus elymoides var. elymoides Cara Witte 2007-6-27 373 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 2/10 mile from intersection with 4N32B. 1413 Comment
  CDA31707  Elymus glaucus Russell Graham Aug 1960 Humboldt Near Weitchpec 0 Comment
  HSC1804  Elymus glaucus William J. Ferlatte, B. D. Rogers 1966-6-15 2107 Humboldt Larabee Valley 762 Comment
  HSC68971  Elymus glaucus Jacqueline Greenleaf 1980-8-12 315 Humboldt Near Henry Ridge. 1128 Comment
  HSC9718  Elymus glaucus D. E. Anderson, T. O. Preston 1963-3-1 19 Humboldt Near bridge over Supply Creek. Comment
  RSA44455  Elymus glaucus Henry M. Pollard 1948-7-19 s.n. Humboldt River road between Orleans and Van Fleet Ranch Comment
  UCR32176  Elymus glaucus David J. Keil 1983-7-1 17280 Humboldt North Coast Range, Bull Creek Flats Road, 2.5 mi. NE of Honeydew Comment
  HSC9745  Elymus glaucus subsp. glaucus D. E. Anderson 1962-7-10 2249 Humboldt Luffenholtz Beach, about 2 mi. S of Trinidad along old Hwy. 101 Comment
  HSC9726  Elymus mollis subsp. mollis J. W. Johnson 1962-4-29 1297 Humboldt W.M. Lanphere Farm, Samoa Peninsula, Arcata. Comment
  HSC102237  Elymus multisetus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1161 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC63872  Elymus multisetus M. A. Baker 1979-6-26 909 Humboldt S facing ridge Comment
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Feb 15 2013
  UC552771  Elymus multisetus H. E. Parks and Joseph P. Tracy 1934-6-27 11049 Humboldt Horse Mt. Northern Coast Ranges 1371 Comment
  SEINET10564727  Elymus multisetus Joseph P. Tracy 1912-7-26 Tracy 3839 Humboldt Common on dry slopes, Kneeland Prairie. 762 Comment
  UC184152  Elytrigia repens Joseph P. Tracy 1912-7-7 3743 Humboldt Eureka Northern Coast Region (edge of salt marsh) 0 Comment
  HSC102918  Epilobium M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1078 Humboldt Patterson Meadows 1555 Comment
  UC1541559  Epilobium H. E. and S. T. Parks July 1937 24050 Humboldt Spruce Cove Trinidad 64 Comment
  RSA40412  Epilobium brachycarpum P. A. Munz 1948-8-13 12348 Humboldt Highway 229, 21 miles E of Blue Lake. 762 Comment
  UC668305  Epilobium campestre Joseph P. Tracy 1938-7-5 16009 Humboldt 5 mi e Carlotta; Strong's District School House 45 Comment
  HSC55351  Epilobium canum subsp. latifolium Griswold, Butler 1979-7-12 7272 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  UCR142719  Epilobium canum subsp. latifolium Thomas W. Nelson, Jane P. Nelson 1977-8-6 3722 Humboldt Between Blanket Creek and Bear Creek just below Blanket Rock 1494 Comment
  HSC55141  Epilobium ciliatum G. L. Clifton, Griswold 1979-8-1 12024 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC49628  Epilobium ciliatum subsp. ciliatum Thomas W. Nelson, Jane P. Nelson 1979-7-3 4943 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  UC1197003  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1920-8-15 5388 Humboldt Bluff Creek Northern Coast Ranges, Klamath River 152 Comment
  POM271563  Epilobium ciliatum subsp. ciliatum Lyman Benson 1928-7-12 467 Humboldt Weott Ranger Station. Seaward N Coast mtn range. S Fork Eel River. 61 Comment
  POM92412  Epilobium ciliatum subsp. ciliatum L. R. Abrams 1922-6-25 8231 Humboldt 2 miles south of Fortuna Comment
  UC902177  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1947-7-5 17810 Humboldt near Box Camp (along stream); Trinity Summit 1463 Comment
  HSC103258  Epilobium ciliatum subsp. glandulosum John McRae 2012-9-11 Humboldt Six Rivers National Forest, Trinity Mountain Quad, Lower Trinity District, Tish Tang Creek. 1311 Comment
  HSC98622  Epilobium ciliatum subsp. glandulosum Cara Witte 2007-7-25 584 Humboldt Forest Service Road 6N08. Friday Ridge Road. 1/4 mile east of intersection with 5N10. 1237 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
  HSC16369  Epilobium glaberrimum subsp. glaberrimum J. P. Tracy 1936-8-7 15102 Humboldt Trinity Summit, head of Little Hors-Linto Creek 1524 Comment
  HSC73548  Epilobium minutum Gail Newton 1980-7-14 1473 Humboldt Near Last Chance Ridge 1219 Comment
  CAS-BOT-BC165948  Epilobium septentrionale J. Clausen 1932-9-18 684 Humboldt 2 miles southeast of Petrolia at the bridge across Matolle River Comment
  UC249622  Epilobium septentrionale Joseph P. Tracy 1921-10-16 5974 Humboldt mouth of S. Fork Trinity R.; Northern Coast Ranges, S. Fork Trinity R. 152 Comment
  CAS-BOT-BC58003  Equisetum Doris K. Kildale 1925-8-18 1253 Humboldt McKay's Prarie - Trinity Summit. 1524 Comment
  UC667937  Equisetum arvense Joseph P. Tracy 1937-7-2 15391 Humboldt ne of Hawkins Bar Happy Camp Mt.; Trinity Summit Range 1280 Comment
  CHSC7104  Equisetum telmateia K. Cox 1969-4-1 6 Humboldt Patrick's Point St. Pk. At foot of Agate Beach trail. 1 Comment
  SEINET181172 Image available Equisetum telmateia Bassett Maguire, R Maguire; C. B. Maguire 1934-6-8 15055 Humboldt Bolling Grove State Park ; Bolling Grove State Park Comment
  CAS-BOT-BC57791  Equisetum telmateia Joseph P. Tracy 1934-6-28 13268 Humboldt By Salmon Creek. 9 Comment
  UC211495  Equisetum telmateia subsp. braunii Chesnut and Drew 1888-8-1 Humboldt Grouse Creek Comment
  HSC99645  Equisetum telmateia subsp. braunii N. D. Dennis 1965-4-8 14 Humboldt Old Arcata Rd., 1 mi. S of Arcata Comment
  UC249866  Eragrostis pectinacea var. pectinacea Joseph P. Tracy 1924-8-31 6835 Humboldt Klamath River at Bluff Creek; Northern Coast Ranges, Klamath River, Bluff Creek 91 Comment
  CAS-BOT-BC299910  Erechtites minimus Doris K. Kildale 1925-7-28 1104 Humboldt On the Van Duzen River near Strong's Station Comment
  UC502962  Eremocarpus setiger Joseph P. Tracy 1927-10-23 8390 Humboldt McClellan Mountain Northern Coast Ranges 762 Comment
  CAS-BOT-BC131507  Ericameria arborescens H. E. McMinn 1922-8-3 476 Humboldt Mt. slope - above S.F., Eel River Comment
  JEPS41418  Erigeron biolettii W. L. Jepson 1932-8-6 16493 Humboldt Garberville Comment
  RSA697104  Erigeron biolettii J. Russell Bruff 1937-8-17 935 Humboldt Richardson Grove, bed of Eel River. Comment
  UC672190  Erigeron biolettii Frank W. Peirson 1923-7-9 3877 Humboldt Humboldt County State Park Eel River, Humboldt County State Park Comment
  SEINET11855650  Erigeron decumbens var. robustior J. P. Tracy 1942-7-4 17370 Humboldt Buck Mountain, lower foothills of its NW slope 762 Comment
  CAS-BOT-BC296112  Erigeron foliosus var. confinis Joseph P. Tracy 1935-6-23 13967 Humboldt French Camp Ridge 1066 Comment
  UC87757  Erigeron foliosus var. mendocinus J. W. Blankinship 1893-7-19 Humboldt Van Duzen River; banks Comment
  UC1223142  Erigeron foliosus var. mendocinus Joseph P. Tracy 1942-7-18 17284 Humboldt n end of town Garberville (in and adjacent to abandoned field) 152 Comment
  UC581724  Erigeron foliosus var. mendocinus Joseph P. Tracy 1930-7-4 8829 Humboldt Bull Creek to Mattole Road (near the summit of ridge) 762 Comment
  POM289039  Erigeron glaucus Lyman Benson 1929-7-19 1850 Humboldt Mouth of Matole River. Comment
  HSC89599  Erigeron glaucus M. Roantree 1985-4-28 18 Humboldt W side of Trinidad Head on an outcropping W of the trail Comment
  CAS-BOT-BC214584  Erigeron philadelphicus L. R. Abrams 1916-7-11 6051 Humboldt Mouth of Grizzly Creek on Van Duzon [Duzen] River Comment
  CAS-BOT-BC214583  Erigeron philadelphicus Doris K. Kildale 1926-5-31 2023 Humboldt Miranda on South Fork of Eel River Comment
  POM288818  Erigeron philadelphicus Lyman Benson 1928-7-10 382 Humboldt Weott Ranger Station. Seaward N Coast mtn range, S. Fork Eel River drainage. 61 Comment
  RSA93095  Erigeron philadelphicus F. W. Peirson 1923-7-9 3875 Humboldt State Park on Eel River Comment
  UCD20386  Erigeron philadelphicus K. Esau 1934-5-6 s.n. Humboldt Fort Seward. Comment
  UCSB30600  Erigeron philadelphicus Edwards, David 1974-7-26 Humboldt Dirt road above E. bank of Mad River, at this junction with Puter Creek, ca. 2 mi. SW. of Korbel 27 Comment
  UC31516  Erigeron philadelphicus var. philadelphicus Hy Melde 1896-2-21 Humboldt Eureka Comment
  JEPS82129  Erigeron philadelphicus var. philadelphicus Rimo Bacigalupi 1959-7-7 7250 Humboldt immediately behind bluff headland (just n of road summit at this point); Cape Mendocino 30 Comment
  CAS-BOT-BC224258  Eriodictyon californicum Henry M. Pollard 1945-9-1 s.n. Humboldt Road to Redcap Creek Comment
  RSA0065545  Eriogonum baileyi Marion P. Harthill 1971-9-8 571 Humboldt Walker River, Toiyabe National Forest, Lower Campgrounds. Comment
  RSA65139  Eriogonum latifolium F. W. Peirson 1926-7-14 7065 Humboldt Table Bluff Lighthouse, south of Eureka. Comment
  POM188360  Eriogonum luteolum Marcus E. Jones 1931-7-16 28862 Humboldt Junction, East of Arcata. Comment
  UC14097  Eriogonum luteolum var. luteolum Chesnut and Drew 1888-7-23 Humboldt Hyampon Comment
  CAS-BOT-BC259537  Eriogonum luteolum var. luteolum Doris K. Kildale 1926-8-29 2594 Humboldt On Van Duzen River at Swimmer's Delight near Strong's Station Comment
  HSC17389  Eriogonum luteolum var. luteolum D. E. Anderson 1961-9-30 1857 Humboldt Along dry roadside Comment
  OBI36370  Eriogonum nudum David J. Keil 1983-7-1 17272 Humboldt Ca 13 mi W of jctn US 101 along Bull Crk Flats Rd Comment
  HSC17446  Eriogonum nudum var. auriculatum C. B. Wolf 1927-8-30 1233 Humboldt 2 mi. S of Petrolia on the Matole River near the road crossing the river Comment
  CAS-BOT-BC267970  Eriogonum umbellatum var. argus Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. 1676 Comment
  HSC99560  Eriogonum umbellatum var. argus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 225 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1433 Comment
  HSC39231  Eriogonum umbellatum var. nelsoniorum D. E. Anderson, J. P. Smith 1971-7-6 - 1281 Humboldt Horse Mtn. Comment
  UC303021  Eriophorum crinigerum Joseph P. Tracy 1926-6-20 7637 Humboldt Horse Mt. Northern Coast Ranges, Horse Mt. 1463 Comment
  CAS-BOT-BC301015  Eriophyllum lanatum var. achilleoides Doris K. Kildale 1926-5-9 1980 Humboldt Kneeland Prairie 762 Comment
  UC1199141  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1934-7-6 13664 Humboldt Iaqua; North Coast Ranges, Iaqua 609 Comment
  HSC60054  Eriophyllum lanatum var. arachnoideum M. A. Baker 1978-5-20 567 Humboldt W side of the Klamath River along Hwy. 96 Comment
  HSC79441  Eriophyllum lanatum var. arachnoideum Kenneth Clark 1980-6-14 671 Humboldt Western slope of Dead Man's Gulch 145 Comment
  UC165849  Eriophyllum lanatum var. grandiflorum Joseph P. Tracy 1911-7-6 3366 Humboldt w side of river near Willow Creek; North Coast Ranges, Trinity River 304 Comment
  HSC35608  Eriophyllum lanatum var. lanceolatum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2020 Humboldt French Camp, Bald Hills Comment
  HSC19420  Erysimum capitatum var. capitatum J. O. Sawyer 1968-9-11 731 Humboldt 1768 Comment
  HSC36913  Erysimum capitatum var. capitatum John Rehling, Robert M. Specht 1976-2-20 111 Humboldt Along Kneeland Rd., halfway to Bridgeville Comment
  HSC44569  Erysimum capitatum var. capitatum Brad Klipfel 1973-7-15 187 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC53822  Erysimum capitatum var. capitatum Terry Griswold, Marvin Butler 1979-7-10 6266 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC96277  Erysimum capitatum var. capitatum Jennifer Lumbert, James Robinson 2005-6-15 13 Humboldt NE of Grouse Mtn., below road 1327 Comment
  HSC89829  Erysimum concinnum May Bugbee 1984-6-14 Humboldt Mattole Beach, S of mouth of Mattole River Comment
  SEINET8371203  Erythranthe dentata L. F. Henderson 1933-5-27 15635 Humboldt Arcata-Redding road. Comment
  CAS-BOT-BC383042  Erythranthe grandis David B. Lowry 2005-5-14 BSR Humboldt Along Blue Slide Road, just north of the intersection with Bluff road 17 Comment
  CAS-BOT-BC383051  Erythranthe guttata David B. Lowry 2005-5-16 PCK Humboldt Along Kneeland road, east of Slater Road 709 Comment
  UC249502  Erythronium californicum Joseph P. Tracy 1922-4-30 6037 Humboldt mountain slopes along road between Three Creeks and mouth of Willow Creek; Northern Coast Ranges 609 Comment
  CAS-BOT-BC504310  Erythronium californicum Michalski; Raum; Hopson 1987-4-1 87 Humboldt Larabee Buttes Comment
  UC1005669  Erythronium californicum Frank W. Gould 1939-5-30 826 Humboldt top Horse Mountain 1219 Comment
  CHSC110754  Erythronium revolutum Dean Wm. Taylor 2011-5-4 21120 Humboldt South Coast Ranges. Vicinity of Dinsmore; Forest Road 1N30 (Bick Mountain Road) about 0.5 miles SE from junction with Highway 36. 737 Comment
  JEPS61873  Erythronium revolutum Joseph P. Tracy 1918-5-4 Humboldt Eureka Comment
  UC201282  Erythronium revolutum Joseph P. Tracy 1918-5-1 4896 Humboldt Ashfield Butte Northern Coast Ranges 762 Comment
  HSC104325  Erythronium revolutum James Regan, Humboldt Redwood Co., LLC 2007-5-9 23 Humboldt Kneeland 854 Comment
  UC1222567  Eschscholzia californica Joseph P. Tracy 1950-6-8 18750 Humboldt Devil's Gate Cape Mendocino (s of point of Cape) 3 Comment
  POM160277  Eschscholzia californica var. crocea Joseph P. Tracy 1926-5-15 7485 Humboldt Kneeland Prairie, North Coast Ranges 762 Comment
  OBI69925  Eucalyptus globulus Jenn Yost, Matt Ritter 2008-4-1 41 Humboldt Sewell R. off 101, Weott Comment
  UC581737  Eucephalus ledophyllus Joseph P. Tracy 1932-7-15 10601 Humboldt ridges e of Corral Prairie; Trinity Summit 1828 Comment
  UC1199299  Eucephalus tomentellus Joseph P. Tracy 1932-7-12 10437 Humboldt Corral Prairie, (open places at) Trinity Summit 1584 Comment
  UC1222991 Image available Eucephalus tomentellus Joseph P. Tracy 1941-8-24 17043 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC5706  Euchiton gymnocephalus G. N. Bos 1965-5-15 254 Humboldt 8 mi. W of Berry Summit, along Hwy. 299 762 Comment
  UC1222481  Euchiton involucratus Joseph P. Tracy 1948-9-26 18232 Humboldt 6 mi se Arcata (at s end of Fickle Hill); Fickle Hill 609 Comment
  HSC8002  Euphorbia crenulata Lincoln Constance 1934-5-24 646 Humboldt S Fork Eel River 122 Comment
  HSC36229  Euphorbia helioscopia John Rehling 1975-5-5 57 Humboldt HSU campus Comment
  HSC100482  Euphorbia lathyris Carl C. Marshall Jun 1885 114 Humboldt Near Arcata fields, etc. Comment
  UC502956  Euphorbia spathulata Joseph P. Tracy 1929-5-5 8578 Humboldt Miranda Northern Coast Ranges, South Fork of Eel River (slopes and groves along South Fork of Eel River) 121 Comment
  UC1222977  Eurybia radulina Joseph P. Tracy 1950-8-20 19319 Humboldt 2 mi sw of Orleans Comment
  HSC97536  Euthamia occidentalis Ivy Watson 2008-9-17 18 Humboldt Mad River Park on West End Rd., near pumping station, 200 ft. from the water 8 Comment
  CAS-BOT-BC413866  Fallopia convolvulus Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UCSB1573  Fallopia sachalinensis Parks, H.; Parks, S. 1952-07 Humboldt South of the Elk River Bridge on Highway 10 Comment
  UC1103702  Festuca californica Joseph P. Tracy 1923-6-3 6250 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC26160  Festuca idahoensis J. P. Smith, Steve Selva 1970-6-30 4111 Humboldt Comment
  HSC9871  Festuca idahoensis R. D. Rogers 1964-5-15 17 Humboldt Rousseau Ranch Comment
  UC177163  Festuca idahoensis Joseph P. Tracy 1912-7-26 3868 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  CAS-BOT-BC278961  Festuca rubra David D. Keck 1944-7-11 5490 Humboldt 3 mi. N. E. of Capetown 152 Comment
  HSC33723  Festuca rubra Dryden 1975-5-24 201 Humboldt Samoa Dunes, off Samoa Blvd. across from boat landing. Comment
  UC1103710  Festuca rubra Harold E. Parks and Joseph P. Tracy 1935-6-16 11272 Humboldt lower nw slopes Buck Mountain 792 Comment
  CAS-BOT-BC282520  Festuca subbiflora Joseph P. Tracy 1901-6-10 1134 Humboldt Eureka 60 Comment
  HSC58702  Festuca subulata Griswold, Butler 1979-7-11 7033 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  HSC18623  Fragaria chiloensis J. W. Johnson 1962-4-29 1300 Humboldt W.M. Lanphere Farm, Samoa Peninsula, Arcata. Comment
  HSC26395  Fragaria chiloensis T. O. Osborne 1970-9-16 35 Humboldt Trinidad Bay, Prisoner Rock Comment
  HSC18615  Fragaria vesca J. J. Wagoner 1965-5-1 25 Humboldt 6 mi. W of Willow Creek along Hwy. 299 Comment
  CAS-BOT-BC457926  Fragaria vesca subsp. californica Doris K. Kildale 1927-3-20 2910 Humboldt Phillipsville, south fork of Eel River Comment
  CAS-BOT-BC52741  Frangula californica subsp. californica Doris K. Kildale 1926-6-13 2162 Humboldt Briceland Bridge 1/2 west of Garberville. 114 Comment
  BLMAR714  Frangula californica subsp. californica Jennifer Anthony-Wheeler 1995-1-19 714 Humboldt King range, growing in open clrng arng rd to new king range admin 283 Comment
  CAS-BOT-BC53402  Frangula californica subsp. occidentalis Doris K. Kildale 1925-8-13 1115 Humboldt Willow Creek Flat, Trinity River Valley 152 Comment
  CAS-BOT-BC53405  Frangula californica subsp. occidentalis Carl B. Wolf 1931-8-30 2377 Humboldt Lord Ellis Road, 9 mi. above Willow Creek on grade from Willow Creek to Blue Lake 304 Comment
  UCD112819  Frangula purshiana Linda M. Barker 1976-7-5 1648 Humboldt Lanphere-Christensen Dunes 3 miles west of Arcata. Comment
  HSC101453  Frangula purshiana subsp. purshiana Cara M. Witte 2008-7-2 822 Humboldt Board Camp Mountain. Forest Service Rd. 4N38. Approximately 1 mile south of 4N38 and National Forest 1 intersection. 1416 Comment
  HSC102007  Frangula purshiana subsp. purshiana M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 908 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC16198  Fraxinus latifolia C. B. Wolf 1927-8-30 1246 Humboldt 3 mi. S of Thorn along old coast road Comment
  HSC15546  Fritillaria affinis F. B. Plett 1963-5-15 49 Humboldt 1.5 mi. N of Trinidad along Old Hwy. 101 Comment
  UC1005680  Fritillaria affinis Frank W. Gould 1939-5-30 830 Humboldt Horse Mountain, about half-way up mountain road Horse Mountain 1000 Comment
  UC1197638  Fritillaria atropurpurea Joseph P. Tracy 1935-7-30 14375 Humboldt Salmon Summit, just below the top Salmon Summit 2072 Comment
  HSC100105  Fumaria capreolata J. P. Smith 2010-4-7 12724 Humboldt Along Fischer Rd., S of junction with School Rd. in McKinleyville 8 Comment
  UC602525  Galium ambiguum var. siskiyouense Joseph P. Tracy 1925-5-30 7026 Humboldt Laribee Valley Northern Coast Ranges 731 Comment
  UC168951  Galium aparine Joseph P. Tracy 1909-5-30 2981 Humboldt Eureka Northern Coast Region 0 Comment
  HSC71493  Galium bolanderi M. A. Baker 1980-6-7 1797 Humboldt Near Brush Mtn. 1128 Comment
  UC416634  Galium bolanderi Harley P. Chandler 1901-6-12 1452 Humboldt Bluff Creek North Coast Ranges, Klamath River 304 Comment
  HSC19807  Galium californicum subsp. californicum Lauramay T. Dempster, G. L. Stebbins 1963-7-9 3849 Humboldt E of Bridgeville, 4.4 mi. on Hwy. 36 to Dinsmore 457 Comment
  JEPS52857  Galium californicum subsp. californicum Lauramay T. Dempster and G. L. Stebbins 1963-7-8 3861 Humboldt 2.3 mi s Weott; Avenue of the Giants Comment
  JEPS52859  Galium californicum subsp. californicum Lauramay T. Dempster 1963-7-9 3849 Humboldt 4.4 mi s Bridgeville (on Hwy 36 to Dinsmore) 457 Comment
  JEPS52865  Galium californicum subsp. californicum Lauramay T. Dempster and Jean Colton 1963-8-7 3886 Humboldt 0.8 mi w Briceland (on road to Shelter Cove) Comment
  JEPS6481  Galium divaricatum Joseph P. Tracy 1920-7-11 5343 Humboldt 2 mi se Arcata; Fickle Hill 304 Comment
  JEPS6697  Galium muricatum W. L. Jepson 1932-7-30 16454 Humboldt Bull Creek Comment
  UC1173701  Galium parisiense Joseph P. Tracy 1939-8-5 16378 Humboldt Dinsmore's 731 Comment
  RSA46488  Galium porrigens Doris K. Kildale 1925-12-27 1462 Humboldt Kneeland. 762 Comment
  RSA41964  Galium triflorum Ella Dales Cantelow 1936-5-17 1407 Humboldt 3 miles S of Orick Comment
  JEPS20484  Gamochaeta ustulata Joseph P. Tracy 1936-5-30 14834 Humboldt near Samoa; Northern Coast Ranges, Humboldt Bay 6 Comment
  RSA638992  Gamochaeta ustulata R. F. Thorne 1974-7-29 45067 Humboldt Samoa Dunes: between Humboldt Bay and Pacific Ocean. Comment
  UC1174948  Garrya fremontii P. C. Everett and E. K. Balls 1959-10-24 23952 Humboldt Somesbar to Orleans (2.8 mi sw from Siskiyou-Humboldt County line) 198 Comment
  UCSB72518  Garrya fremontii Moseley, Maynard 1952-8-21 Humboldt Along western valley wall of Willow Creek, mostly within Hoppe Indian Reservation, upstream from Willow Village Comment
  HSC49710  Gastridium phleoides J. O. Sawyer 1977-7-1 2991 Humboldt Aikens campground. Comment
  HSC22505  Gaultheria shallon J. R. Eichelberger 1964-5-5 68 Humboldt N side of the Mad River at the entrance to Azalea State Reserve Comment
  HSC76367  Gaultheria shallon Teresa Prendusi 1981-7-23 357 Humboldt Near Black Mountain. 890 Comment
  RSA467225  Gaultheria shallon Maude Minthorn s.n. Humboldt Ferndale. Comment
  UC1120968  Gaultheria shallon A. E. Wieslander 1931-5-21 211 Humboldt on ridge near Kneeland Comment
  UC484078  Gaultheria shallon Carl B. Wolf 1930-10-30 Humboldt 4 mi s of Thorn (Old Coast Road); Old Coast Road 304 Comment
  HSC55115  Gayophytum diffusum subsp. parviflorum Gilbert Muth 1979-8-1 11882 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC98954  Gayophytum diffusum subsp. parviflorum Cara Witte 2008-7-28 947 Humboldt Buck Flat. Near intersection of National Forest 1 and Forest Service Road 5N01. 1591 Comment
  JEPS27600  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1933-8-30 13046 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC1196970  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9070 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  POM223145  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1930-7-16 9051 Humboldt North Coast Ranges: South Fork Mountain, open glades along summit near Blake lookout 1738 Comment
  RSA782434  Genista monspessulana R. W. Spjut, Paul Burchstead 2008-6-14 16348 Humboldt North Coast Ranges. West side of Hwy. 101 between Piercy and Willits 259 Comment
  HSC37851  Geranium carolinianum Peter Sorensen 1976-6-2 Humboldt Woodley Island Comment
  UC1197407  Geranium dissectum Joseph P. Tracy 1936-6-9 14880 Humboldt Bear River Ridge Northern Coast Ranges 609 Comment
  HSC7248  Geranium molle J. E. Lankila 1962-5-14 22 Humboldt W bank of river at Fernbridge Comment
  HSC8663  Geranium retrorsum Richard Steele 1962-5-1 22 Humboldt Arcata, 0.5 mi. S of HSC campus 15 Comment
  HSC102014  Geum macrophyllum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 915 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  SEINET3356154 Image available Gilia capitata H. E. Parks, J. P. Tracy 1930-5-25 0793 Humboldt Near Bridgeville Comment
  BLMAR718  Gilia capitata subsp. pacifica Jennifer Wheeler 2012-6-5 718 Humboldt King range, Mattole beach bluffs 18 Comment
  HSC95436  Gilia capitata subsp. pacifica Gordon Leppig 2003-6-25 1989 Humboldt E side headwaters of Brushy Creek 800 Comment
  UC427877  Gilia capitata subsp. pacifica H. E. Parks, J. P. Tracy 1930-5-25 793 Humboldt near Bridgeville; near Bridgeville Comment
  UC1197908  Gilia millefoliata Joseph P. Tracy 1946-6-2 17554 Humboldt sand dunes near Samoa; on Humboldt Bay, near Samoa 6 Comment
  JEPS85975  Gilia tricolor subsp. diffusa Joseph P. Tracy 1919-5-31 5144 Humboldt at Willow Creek (Trinity River Valley); Trinity River, Willow Creek 152 Comment
  SEINET10464626  Githopsis specularioides Chandler CHANDLER 1345 Humboldt Hupa Indian Reservation 152 Comment
  HSC14201  Glechoma hederacea D. W. Snell 1964-4-25 55 Humboldt Mad River bottom, 3 mi. N of Blue Lake Comment
  HSC10051  Glyceria declinata B. D. Rogers 1964-4-27 25 Humboldt 0.5 mi. W of Arcata on Samoa Rd. Comment
  RSA624796  Glyceria declinata Gordon Leppig 1996-5-5 329 Humboldt Arcata, Healthsport parking lot of Union Street. 2 Comment
  UC1541565  Glyceria elata Harold E. Parks Sep 1928 175 Humboldt Big Lagoon Comment
  UC183531  Glyceria elata Joseph P. Tracy 1908-6 2770 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  POM126119  Glyceria fluitans Joseph P. Tracy 1924-8-3 6749 Humboldt Stone Lagoon Comment
  CAS-BOT-BC302538  Gnaphalium palustre H. E. Parks; S. T. Parks 1937-7-1 24026 Humboldt Spruce Cove, Trinidad Comment
  CAS-BOT-BC302540  Gnaphalium palustre Harold E. Parks 1937-7-1 24046 Humboldt Spruce Cove, Trinidad Comment
  HSC67008  Gnaphalium palustre J. P. Smith 1971-10-9 5037 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  SFV18597  Gnaphalium palustre T. W. Nelson, J. P. Nelson 1987-7-4 8625A Humboldt South of Lundbarhills area. Along logging roads where vernally wet. 61 Comment
  POM247117  Gnaphalium ramosissimum Joseph P. Tracy 1936-8-24 15169 Humboldt Fickle Hill, 6 miles SE of Arcata. 610 Comment
  UC1196372  Goodyera oblongifolia Joseph P. Tracy 1932-7-17 10660 Humboldt near Corral Prairie (Trinity Summit); Trinity Summit 1584 Comment
  UC14960  Goodyera oblongifolia Harley P. Chandler June, 1901 1397 A Humboldt North Coast Ranges, Hupa Indian Reservation Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 152 Comment
  UC179961  Goodyera oblongifolia Joseph P. Tracy 1914-9-6 4624 Humboldt between High Prairie and Snow Camp (Northern Coast Ranges, Bald Mountain); Northern Coast Ranges, Bald Mountain 1219 Comment
  CAS-BOT-BC304732  Grindelia hirsutula Alice Eastwood; John Thomas Howell 1934-4-11 1321 Humboldt Eureka Comment
  UC1174870  Grindelia hirsutula P. C. Everett and E. K. Balls 1959-10-25 23967 Humboldt 6 mi ne Eureka (U.S. Hwy 101) 1 Comment
  UCR48860  Grindelia stricta R. D. Goeden 1987-9-2 870902- 21 Humboldt Cape Mendocino (Cape Ridge) on bank above Mattole Rd. 183 Comment
  OBI16402  Grindelia stricta var. stricta Carl B. Wolf 1937-9-12 9333 Humboldt Humboldt bay, 1 mi S of Arcata on road to Eureka 3 Comment
  RSA21023  Grindelia stricta var. stricta C. B. Wolf 1937-9-12 9333 Humboldt Humboldt Bay, 1 mile south of Arcata on road to Eureka. 3 Comment
  RSA640949  Grindelia stricta var. stricta R. F. Thorne, Percy C. Everett 1965-8-8 35278 Humboldt N edge of Eureka, E of Hwy 101. 3 Comment
  HSC56456  Hackelia bella Griswold, Butler 1979-7-12 7233 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC74193  Hackelia micrantha M. A. Baker 1980-7-22 3127 Humboldt Near Grogan Hole. 1676 Comment
  UC1713302  Hackelia setosa Joseph P. Tracy 1937-7-25 15547 Humboldt Ridge 2 mi e of Grove's Prairie; Trinity Summit 1524 Comment
  HSC59038  Hedera helix Thomas Wood 1979-4-20 119 Humboldt Along frontage rd., parallel and E of Hwy. 101 at Patrick Cr. Rd. intersection, adjacent to Patrick Cr. 6 Comment
  UC205209  Helenium bigelovii Joseph P. Tracy 1919-9-18 5245 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1524 Comment
  SEINET11848907  Helenium bigelovii J. P. Tracy, Parks, H. E. 1950-1 11686 Humboldt Park's place, 2 mi N of Trinidad Comment
  SEINET5711016  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
  CAS-BOT-BC306869  Helenium bolanderi Carl B. Wolf 1937-8-10 9089 Humboldt Big Lagoon, Bog at State Park 6 Comment
  HSC96485  Helenium bolanderi Gordon Leppig 1997-6-19 453 Humboldt Big Lagoon Bog, Big Lagoon County Park 3 Comment
  HSC48030  Hemizonella minima Brad Klipfel 1974-5-27 405 Humboldt Horse Mtn. Comment
  CAS-BOT-BC309985  Hemizonia congesta subsp. tracyi H. E. Parks; J. P. Tracy 1930-5-25 0880 Humboldt Near Bridgeville Comment
  UC205206  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1919-7-20 5183 Humboldt w side near top Mount Pierce; Northern Coast Ranges, Mount Pierce 914 Comment
  RSA254780  Hemizonia tracyi Thomas W. Nelson 1973-5-28 967 Humboldt McKeown Ranch north of Dinsmore. Comment
  CDA40919  Heracleum lanatum P. Haggard 2002-8-23 PDR P 070809 Humboldt North Coast; Wildlife Refuge in the vicinity of Eureka. Sheet 2 of 3 0 Comment
  UC180205  Heracleum lanatum Joseph P. Tracy 1914-6-14 4511 Humboldt Carlotta North Coast Ranges, Carlotta 60 Comment
  UC642335  Heracleum lanatum Joseph P. Tracy 1934-7-27 13491 Humboldt near mouth Mad River 15 Comment
  HSC56147  Heracleum maximum G. L. Clifton, Terry Griswold 1979-8-1 11981 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  HSC98052  Heracleum maximum Cara Witte 2007-7-9 453 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1554 Comment
  SD53244  Heracleum maximum Darley F. Howe 1962-5-22 3301 A Humboldt 0.5 miles north of Orick on # 101 29 Comment
  UC1223123  Hesperevax acaulis var. robustior Joseph P. Tracy 1948-5-31 17983 Humboldt 1/2 mi ne Garberville 152 Comment
  HSC40850  Heterocodon rariflorum Thomas W. Nelson 1976-7-9 3000 Humboldt Along W side of ridge S of E peak of Mount Lassic group. 1524 Comment
  HSC67012  Heterotheca oregona var. rudis J. P. Smith 1971-10-9 4987 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  HSC97539  Heterotheca oregona var. rudis Ivy Watson 2008-9-17 17 Humboldt Mad River Park on West End Rd. near pumping station 8 Comment
  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
  RSA298143  Heterotheca oregona var. rudis J. P. Smith 1971-10-9 4987 Humboldt Mad River above the Fish Hatchery. Comment
  RSA93364  Heterotheca oregona var. rudis F. W. Peirson 1941-7-29 13111 Humboldt Stephens Grove State Park. Comment
  HSC20191  Heuchera micrantha D. E. Anderson 1962-5-1 2200 Humboldt 1 mi. W of Hoopa Comment
  CAS-BOT-BC420722  Heuchera micrantha var. diversifolia Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  UC154083  Heuchera micrantha var. diversifolia Joseph P. Tracy 1908-6 2865 Humboldt Valley of Van Duzen River (opposite Buck Mountain); Northern Coast Ranges 762 Comment
  JEPS1222  Heuchera micrantha var. macropetala Freed Hoffman 1950-7-11 4009 Humboldt 16.1 mi above and n of Klamath River Road (along road to Cedar Camp) 914 Comment
  HSC98607  Heuchera micrantha var. micrantha Cara Witte 2008-7-14 890 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. At end of the road. 1407 Comment
  CHSC40208  Heuchera micrantha var. pacifica L. P. Janeway 1984-5-28 842 Humboldt Benbow State Recreation Area along South Fork Eel River. Slope above old Hwy 101. 121 Comment
  HSC76266  Heuchera rubescens Teresa Prendusi 1981-7-24 515 Humboldt Near Whiteys Peak 1634 Comment
  HSC49962  Hieracium albiflorum Maralyn O'Meara 1974-7-11 542 Humboldt Kneeland; Barry Ridge Comment
  SEINET11262552  Hieracium albiflorum D. E. Anderson 1972-6-20 5745 Humboldt Along the Redwood Valley-Hoopa Rd. east of the summit.; 0 Comment
  BLMAR738  Hieracium albiflorum Jennifer Wheeler 2015-5-12 738 Humboldt King range, Along Telegraph Ridge btwn Oat and Spanish 670 Comment
  UC1069597  Hieracium albiflorum H. L. Person 1932-7-16 Humboldt highway n Trinidat; Rock Point Quad. Comment
  UC1223084  Hieracium albiflorum Joseph P. Tracy 1948-9-5 18200 Humboldt near Grizzly Camp; Trinity Summit Comment
  UC1223083  Hieracium bolanderi Joseph P. Tracy 1947-7-9 17849 Humboldt Horse Mountain 1432 Comment
  HSC57977  Hieracium greenei G. L. Clifton, Griswold 1979-7-31 11701 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC58147  Hieracium greenei Muth 1979-8-1 12190 Humboldt Near Red Cap Prairie 1781 Comment
  HSC36309  Hippuris vulgaris David Sohrakoff 1972-11-12 1 Humboldt Clam Beach ponds Comment
  UC198615  Hippuris vulgaris Joseph P. Tracy 1917-5-30 4807 Humboldt near mouth of Little R.; Northern Coast Ranges 6 Comment
  UCSB25052  Hippuris vulgaris Keefe, Joseph 1967-7-8 Humboldt east side of U.S. Highway 101, turnoff to Crannell Road; north of Eureka 6 Comment
  UC492250  Hirschfeldia incana Joseph P. Tracy 1930-10-12 9215 Humboldt Alton to Fortuna Eel River 15 Comment
  HSC10129  Holcus lanatus Paul Shields 1955-6-10 Humboldt Arcata, Humboldt State University campus. Comment
  UC38600  Holcus lanatus Harley P. Chandler May 1901 1118 Humboldt Humboldt Bay; North Coast Ranges, Humboldt Bay 30 Comment
  CAS-BOT-BC149909  Holodiscus discolor C. C. Harris; S. K. Harris 1936-6-9 329 Humboldt Behind Mrs. Wilder's, Carlotta Comment
  HSC58168  Holodiscus discolor G. L. Clifton, Griswold 1979-8-2 12239 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  HSC72986  Holodiscus discolor M. A. Baker 1980-7-15 2947 Humboldt Near Whiting Ridge 301 Comment
  LA83708  Holodiscus discolor O. H. Kappler; 1946-7-24 1372 Humboldt Humboldt Bay, close to beach Comment
  HSC38426  Hordeum brachyantherum D. E. Anderson, J. P. Smith 1971-6-14 - 1046 Humboldt Along railroad tracks at P.G.&E. power plant S of Eureka. Comment
  HSC38770  Hordeum brachyantherum J. D. Ackerman 1975-6-10 463 Humboldt 1 mi. N of Samoa Blvd. and Samoa bridge Rd. intersection. S of Manila. Near Railroad tracks Comment
  CAS-BOT-BC536627  Horkelia californica Joseph P. Tracy 1949-7-7 18332 Humboldt Table Bluff Ridge 91 Comment
  UC303162  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1925-5-30 7025 Humboldt Laribee Valley; Northern Coast Ranges 701 Comment
  HSC23680  Horkelia tridentata var. flavescens D. E. Anderson, J. O. Sawyer, J. P. Smith 1970-5-10 5054 Humboldt ca. 6 miles W of Hoopa, along road from Redwood Creek to Hoopa Comment
  CAS-BOT-BC537896  Horkelia tridentata var. flavescens Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC537962  Horkelia tridentata var. flavescens J. D. Ackerman 1975-6-18 472 Humboldt Big Hill rd. ca. 10.4 mi. E. of Hoopa and Hwy. 96. Comment
  HSC96954  Horkelia tridentata var. flavescens Ryoko Ito, Shauna McDonald 2007-6-11 3 Humboldt 11.9 mi. above Hwy. 299 1585 Comment
  UCD128229  Hydrocotyle ranunculoides Linda M. Barker 1976-8-2 1704 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  HSC13556  Hydrophyllum occidentale J. Allen DeCou 1899-6-19 234 Humboldt Hoopa Mtns. Comment
  POM258591  Hydrophyllum occidentale Lincoln Constance, A. A. Beetle, Joseph P. Tracy 1940-5-17 2618 Humboldt NW slope, Lower slopes of Buck Mtn, near Eureka. 793 Comment
  UC35519  Hydrophyllum occidentale W. C. Blasdale 1896-6-6 Humboldt McBride's 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
  UC582691  Hydrophyllum tenuipes Joseph P. Tracy 1937-7-25 15538 Humboldt Little Hors-Linto Creek; Trinity Summit 1371 Comment
  JEPS66787  Hypericum anagalloides W. H. Shockley 1879-1 Humboldt Eureka Comment
  RSA46497  Hypericum perforatum Doris K. Kildale 1925-6-29 932 Humboldt Van Duzen R. near Alton Comment
  UC1199473  Hypochaeris glabra Joseph P. Tracy 1936-5-30 14835 Humboldt near Samoa; Humboldt Bay 6 Comment
  HSC39463  Hypochaeris glabra J. P. Smith, J. O. Sawyer 1976-5-2 Humboldt S. R. 96, 4.9 mi. N of its junction with S.R. 299 122 Comment
  SEINET11855591  Hypochaeris glabra J. P. Tracy 1948-5-31 18020 Humboldt William Perry place, Dobbyn Creek 152 Comment
  HSC67871  Hypochaeris radicata J. P. Smith 1973-5-26 6879 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC96493  Hypochaeris radicata Gordon Leppig 1997-8-3 630 Humboldt Big Lagoon County Park; Big Lagoon Bog 3 Comment
  UCSB30595  Hypochaeris radicata Edwards, David 1974-7-13 Humboldt In the NE corner of a field located to the SW of the intersection of Fickle Hill Rd. and Hill St., ca. 1/3 mi. E. of U.S. 101, Arcata 36 Comment
  SEINET3225680 Image available Iliamna latibracteata Joseph P. Tracy 1926-6-12 7585 Humboldt Prairie Creek. 150 Comment
  UC630469 Image available Iliamna latibracteata H. E. Parks, S. T. Parks June, 1935 5593 Humboldt East side of Prairie Creek, North of Orick. Comment
Read comments
Feb 27 2012
  SEINET5536070 Image available Impatiens glandulifera W. J. Ferlatte, B. D. Rogers 1966-1 3128 Humboldt Lampheres Garden Comment
  RSA67626  Iris Philip A. Munz 1951-7-15 16546 Humboldt dry slopes in woods, about 3 miles northeast of Willow Creek Comment
  UC162596  Iris douglasiana Joseph P. Tracy 1911-6-4 3215 Humboldt 5 mi from coast Little River (along Little River); Northern Coast Region 121 Comment
  UC275573  Iris douglasiana Joseph P. Tracy 1924-5-25 6683 Humboldt Big Lagoon; Northern Coast Region 6 Comment
  UCR275116  Iris douglasiana Charity A. Hartshorn 2016-5-14 30 Humboldt Arcata Community Forest 244 Comment
  RSA135819  Iris douglasiana E. K. Balls 1957-5-25 22606 Humboldt 0.5 miles west of Bridgeville, along Van Duzen River, State Highway 36 122 Comment
  UC175825  Iris douglasiana Joseph P. Tracy 1912-4-21 3571 A Humboldt Humboldt Hill; Northern Coast Region, Humboldt Bay Region 0 Comment
  UC14927  Iris macrosiphon P. E. Goddard 1901-7-8 30 Humboldt Hupa Comment
  RSA24204  Iris macrosiphon Carl B. Wolf 1941-3-3 9993 Humboldt N. Coast Range, 1/2 miles N of Ettersburg on road to Honeydew. 305 Comment
  RSA135817  Iris purdyi E. K. Balls 1957-5-26 22609 Humboldt 0.9 mile southwest [of] Humboldt - Trinity County line, on road Alder Point to Zenia 396 Comment
  HSC48416  Iris tenax subsp. klamathensis J. P. Smith, J. O. Sawyer, Jane Cole 1978-5-21 9925 Humboldt Ishi Pishi Rd., 2.5 mi. from its junction with Hwy. 96 in Orleans 213 Comment
  JEPS60150  Isoetes nuttallii Joseph P. Tracy 1938-7-7 16034 Humboldt at Cold Springs Grouse Mt; Grouse Mt., Cold Springs 1432 Comment
  CAS-BOT-BC112459  Isolepis cernua Carl B. Wolf 1927-8-22 790 Humboldt Big Lagoon Comment
  OBI36620  Jaumea carnosa David J. Keil 1983-7-2 17300 Humboldt Humboldt Bay salt marsh at Arcata Corp Yard Comment
  SEINET7879019 Image available Jaumea carnosa C. C. Harris, S. K. Harris 1939-1 994 Humboldt south shore of Humboldt Bay Comment
  CAS-BOT-BC109922  Juncus Doris Kildale Gillespie 1931-6-7 10654 Humboldt South Fork Mountain. Blake Lookout. 1726 Comment
  HSC45954  Juncus balticus subsp. ater J. P. Smith, Steve Selva 1970-6-14 3822 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  UC303152  Juncus balticus subsp. ater Joseph P. Tracy 1925-8-2 7221 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UC726303  Juncus breweri A. A. Heller 1929-8-4 14996 Humboldt Little River Comment
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Dec 13 2006
  UCD170802  Juncus breweri Gordon Leppig 1998-6-14 833 Humboldt Mackerricher State Park. Ingelnook Fen just north of Fen. 6 Comment
  RSA18013  Juncus bufonius Carl B. Wolf 1927-8-22 780 Humboldt Big Lagoon Comment
  HSC78252  Juncus bufonius var. bufonius L. P. Janeway, Paul Wilson 1984-5-25 820 Humboldt N Spit of Humboldt Bay; BLM lands near the Coast Guard Station 5 Comment
  HSC89596  Juncus bufonius var. bufonius M. Roantree 1985-5-2 31 Humboldt E side of Trinidad Head. Comment
  HSC14098  Juncus bufonius var. occidentalis H. E. Parks, J. P. Tracy 1935-6-16 11273 Humboldt Buck Mt., lower NW slopes 793 Comment
  UC184197  Juncus bufonius var. occidentalis Joseph P. Tracy 1908-7-9 2937 Humboldt near Buck Mountain summit; Northern Coast Ranges, Buck Mountain 1219 Comment
  UC1103048  Juncus covillei var. obtusatus Joseph P. Tracy 1918-7-5 5000 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
  UC183677  Juncus ensifolius Joseph P. Tracy 1912-7-24 3809 Humboldt Eureka Northern Coast Region 0 Comment
  HSC39048  Juncus falcatus Linda M. Barker 1976-6-22 1623 Humboldt 3 mi. W of Arcata Comment
  HSC40877  Juncus hesperius Linda M. Barker 1976-6-1 1568 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  CHSC102933  Juncus laccatus Peter F. Zika 2007-7-30 23330 Humboldt North Coast, NCo. Above E side of Route 101, at high point between Stone and Big Lagoons. 80 Comment
  UC213333  Juncus parryi Joseph P. Tracy 1919-9-22 5272 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  UC1601806  Juncus phaeocephalus Harley P. Chandler May 1901 1123 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  HSC82411  Kalmia polifolia Thomas W. Nelson 1979-7-11 5018 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  CAS-BOT-BC235883  Keckiella corymbosa Joseph P. Tracy 1937-7-11 15422 Humboldt Vicinity of Garberville 121 Comment
  CAS-BOT-BC235884  Keckiella corymbosa H. L. Mason 1928-7-14 4900 Humboldt East Fork of the Eel River near Garberville Comment
  RSA44301  Keckiella lemmonii H. M. Pollard 1946-9-2 s.n. Humboldt Orleans Mt. Trail. 1524 Comment
  UC41736  Keckiella lemmonii Chesnut and Drew 1800-1 Humboldt Comment
  HSC56266  Kelloggia galioides G. L. Clifton, Griswold 1979-8-2 12425 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC162570  Kickxia elatine Joseph P. Tracy 1911-7-11 3508 Humboldt Hoopa Valley; Northern Coast Ranges 152 Comment
  UC885732  Kickxia elatine Carl D. Duncan 1920-9-22 Humboldt Hoopa Valley Comment
  HSC32341  Koeleria macrantha D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5640 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  SEINET200339 Image available Koeleria macrantha J. P. Tracy 1908-7-5 2778 Humboldt NW slope of Buck Mt 914 Comment
  CAS-BOT-BC340409  Lactuca biennis Henry M. Pollard 1947-8-21 s.n. Humboldt Near Ferrian Ranch, Orleans region Comment
  CAS-BOT-BC341441  Lagophylla ramosissima Henry M. Pollard 1945-8-27 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon Comment
  CHSC79684  Lamiastrum galeobdolon Gordon Leppig; Kai Neander 2000-4-13 1292 Humboldt Arcata. 100 m south of trail 5 and 10 intersection. UTM zone 10, 4527N, 40E. 91 Comment
  HSC89711  Lamium purpureum Larry Levine, Manuel Pachero, Ben Murphey 1989-2-24 1 Humboldt HSU campus, garden plot SW of Buckhouse 40 Comment
  CAS-BOT-BC337993  Lasthenia californica L. B. Kildale 1930-6-1 9767 Humboldt Klamath River at Bluff Creek Comment
  CAS-BOT-BC337994  Lasthenia californica Doris K. Kildale 1926-5-9 1992 Humboldt Kneeland Prairie at rock pile 853 Comment
  UC129575  Lasthenia californica subsp. californica Harley P. Chandler May 1901 1155 Humboldt North Coast Ranges, Humboldt Bay 3 Comment
  UC1199076  Lathyrus glandulosus Joseph P. Tracy 1930-8-24 9170 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  CAS-BOT-BC204952  Lathyrus japonicus Doris K. Kildale 1925-7-15 1086 Humboldt Eureka Slough Comment
  JEPS55279  Lathyrus latifolius W. L. Jepson 1932-7-30 16464 Humboldt Scotia Comment
  HSC26882  Lathyrus latifolius Clifton Raymond Chesbrough 1973-6-19 89 Humboldt 0.5 mi. S of Trinidad along the coast Comment
  RSA406671  Lathyrus littoralis Charlotte M. Hoak 1931-7-14 s.n. Humboldt Sand dunes above Eureka City. Comment
  UC249527  Lathyrus nevadensis var. nevadensis Joseph P. Tracy 1922-5-29 6062 Humboldt South Yager Creek Valley Northern Coast Ranges 762 Comment
  UC303184  Lathyrus nevadensis var. nevadensis Joseph P. Tracy 1923-5-20 6241 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  JEPS79917  Lathyrus polymorphus Joseph P. Tracy 1932-7-20 10735 Humboldt just w of Corral Prairie (Klamath Mountains, Trinity Summit); Klamath Mountains, Trinity Summit 1524 Comment
  HSC38081  Lathyrus polyphyllus Thomas W. Nelson, James Nelson 1976-5-30 2626 Humboldt McKeown Ranch, N of Dinsmore. Comment
  JEPS79919  Lathyrus vestitus var. ochropetalus Joseph P. Tracy 1929-5-5 8579 Humboldt Phillipsville, facing South Fork of Eel River South Fork of Eel River; Northern Coast Ranges 121 Comment
  CAS-BOT-BC325995  Layia carnosa David D. Keck; J. Clausen 1935-6-16 3381 Humboldt Mouth of Little River. Comment
  UC249862  Leersia oryzoides Joseph P. Tracy 1924-8-31 6836 Humboldt Klamath River at Bluff Creek Bluff Creek; Northern Coast Ranges, Klamath River, Bluff Creek 91 Comment
  UCSC000838  Leontodon nudicaulis subsp. taraxacoides H. S. Reed 1941-7-26 s.n. Humboldt Common weed near Trinidad Trinidad Comment
  BLMAR462  Lepidium nitidum Jennifer Anthony-Wheeler 2008-3-7 462 Humboldt Samoa dunes, growing in Samoa #3 Endangered Plant Protection Area 12 Comment
  UC552286  Lepidium virginicum Joseph P. Tracy 1933-8-22 12992 Humboldt Mouth of Eel River North Coast Ranges 3 Comment
  SEINET3363433 Image available Leptosiphon androsaceus Victor Duran 1933-5-10 Humboldt Near Blocksburg Comment
  HSC45056  Leptosiphon androsaceus R. Sutherland 1978-4-23 34 .23478 Humboldt 558 Comment
  UC908950  Leptosiphon latisectus Joseph P. Tracy 1927-5-8 7976 Humboldt Phillipsville, facing South Fork of Eel River Northern Coast Ranges 121 Comment
  CAS-BOT-BC341823  Lessingia nemaclada Henry M. Pollard 1943-8-1 s.n. Humboldt Orleans Comment
  UC1115822  Lessingia nemaclada Joseph P. Tracy 1939-9-4 16476 Humboldt opposite Buck Mountain (Dinsmores); Valley of Van Duzen River 762 Comment
  BLMAR147  Leucanthemum vulgare Donald Hazlett 1994-6-7 147 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CAS-BOT-BC444058  Lewisia cotyledon var. howellii Lincoln Constance; Reed C. Rollins 1942-5-12 2885 Humboldt Klamath-Siskiyou Region. Mouth of Bluff Creek, 6 miles northeast of Weitchpec. 152 Comment
  UC673019  Lewisia nevadensis Joseph P. Tracy 1932-7-10 10377 Humboldt open places at Corral Prairie Trinity Summit 1584 Comment
  JEPS5878  Lewisia triphylla Joseph P. Tracy 1935-7-24 14178 Humboldt near Ranger Station; Trinity Summit 1828 Comment
  UC673016  Lewisia triphylla Joseph P. Tracy 1932-7-10 10376 Humboldt open places at Corral Prairie Trinity Summit 1584 Comment
  CAS-BOT-BC283513  Leymus X vancouverensis Joseph P. Tracy 1930-7-21 8894 Humboldt Cape Mendocino, near ocean shore S of point of the cape 30 Comment
  CAS-BOT-BC283514  Leymus X vancouverensis Malcom A. Nobs; S. Galen Smith 1949-8-3 1204 Humboldt Salt marshes bordering Humboldt Bay, ca 2 miles N of Eureka Comment
  UC1100250  Leymus X vancouverensis Malcolm A. Nobs and S. Galen Smith 1949-8-3 1204 Humboldt ca 2 mi n Eureka (salt marshes bordering bay); Humboldt Bay Comment
  SD51274  Ligusticum apiifolium Darley F. Howe 1961-8-2 3614 Humboldt 24 miles east of Orick on Bald Mountain Road. 915 Comment
  CAS-BOT-BC436494  Ligusticum apiifolium Joseph P. Tracy 1934-7-22 13485 Humboldt North Yager Creek, at crossing of Kneeland to Bridgeville road Comment
  HSC56158  Ligusticum grayi G. L. Clifton, Terry Griswold 1979-8-1 12025 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  RSA12433  Lilium bolanderi Carl B. Wolf 1934-7-2 5860 Humboldt 2 miles from Snow Camp on road to Bald Mountain. 1067 Comment
  UCR39795  Lilium bolanderi D. K. Imper 1983-7-12 s.n. Humboldt Six Rivers National Forest. Along13N01 roadside c. 3.5 mi north of Blue Lake 915 Comment
  UC175813  Lilium columbianum Joseph P. Tracy 1913-7-13 4356 Humboldt Patrick's Point Northern Coast Ranges, Patrick's Point 30 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
  CAS-BOT-BC130643  Lilium kelloggii Albert M. Vollmer; Ira L. Wiggins 1940-7-4 6 Humboldt On Orick-Weitchpec road, 15 miles west of Weitchpec 944 Comment
  CAS-BOT-BC130644  Lilium kelloggii Albert M. Vollmer; Ira L. Wiggins 1940-7-4 6 Humboldt On Orick-Weitchpec road, 15 miles west of Weitchpec 944 Comment
  HSC15575  Lilium kelloggii D. E. Anderson 1962-7-14 2250 Humboldt 2 mi. W of Kneeland Post Office Comment
  LA22064  Lilium occidentale Carl Epling; William Robison 1935-7-22 sn Humboldt near Patrick's Point Comment
  UC1198247  Lilium occidentale Joseph P. Tracy 1918-7-21 5078 Humboldt around Humboldt Bay Humboldt Hill; Northern Coast Ranges, Humboldt Bay, Humboldt Hill 182 Comment
  RSA12542  Lilium pardalinum Carl B. Wolf 1934-7-2 5896 Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  HSC56955  Lilium pardalinum subsp. pardalinum Overton, Butler 1979-7-23 9465 Humboldt Near Horse Mtn. Mine, close to the town of Willow Creek 1295 Comment
  HSC57043  Lilium pardalinum subsp. pardalinum Overton, Butler 1979-7-24 9687 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  CAS-BOT-BC132968  Lilium rubescens Tom Craig 1941-7-2 s.n. Humboldt Near Yager Comment
  UC1198228  Lilium washingtonianum subsp. purpurascens Joseph P. Tracy 1947-7-9 17863 Humboldt Horse Mountain 1432 Comment
  UC1197413  Limnanthes douglasii Joseph P. Tracy 1922-5-29 6064 Humboldt Head of South Yager Creek Northern Coast Ranges 762 Comment
  UC1197414  Limnanthes douglasii Joseph P. Tracy 1927-6-5 8106 Humboldt valley of South Yager Creek Northern Coast Ranges 762 Comment
  HSC71066  Limnanthes douglasii subsp. nivea Thomas W. Nelson, Jane P. Nelson 1977-5-30 3399 Humboldt McKeown Ranch; along road to Anderson's Ford 854 Comment
  BLMAR734  Limnanthes douglasii subsp. nivea Jennifer Wheeler 2015-4-28 734 Humboldt Larabee Butte, Roadside pasture at Butte Creek Access Rd 722 Comment
  SEINET3818260  Limnorchis leucostachys Unknown 1942-1 Humboldt 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
  HSC90804  Limonium californicum Leonel Arguello 1989-9-9 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata Comment
  UC35157  Limonium californicum Chesnut and Drew 1888-8-11 Humboldt Eureka; marsh Comment
  UC1198582  Linanthus acicularis Joseph P. Tracy 1933-5-21 12214 Humboldt McClellan Mt. 609 Comment
  UC908625  Linanthus acicularis Joseph P. Tracy 1927-5-15 8033 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC1197836  Linanthus nuttallii subsp. nuttallii Joseph P. Tracy 1936-8-2 15063 Humboldt French Camp Ridge 1066 Comment
  CDA6374  Linaria vulgaris E. C. Whitney 1965-9-25 Humboldt Highway 101, Fortuna. 0 Comment
  HSC57865  Linnaea borealis subsp. longiflora G. L. Clifton 1979-7-31 11390 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC169892  Linum bienne Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5685 Humboldt North Coast Ranges, Hoopa Mountain Hoopa Mountain; North Coast Ranges, Hoopa Mountain Comment
  CDA4728  Linum bienne T. C. Fuller 1958-6-17 602 -58 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  HSC15824  Linum bienne T. M. Mingo May 1965 Humboldt E of parking area at College cove. Comment
  HSC42008  Linum bienne Tom Duebendorfer 1977-5-15 47 Humboldt 0.52 mi. after junction of Snow Creek Rd. and Maple Creek Rd. along Maple Creek Rd. 518 Comment
  UC1103027  Listera cordata Joseph P. Tracy 1923-6-24 6361 1/2 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  CAS-BOT-BC36107  Lithocarpus densiflorus var. densiflorus Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. Trail 762 Comment
  UC1196491  Lithophragma affine Harold E. Parks and Joseph P. Tracy 1942-5-16 11558 B Humboldt vicinity Garberville; vicinity of Garberville 152 Comment
  HSC48747  Lithophragma heterophyllum Brad Klipfel 1973-6-10 86 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC78980  Lobularia maritima L. P. Janeway 1984-12-5 1195 Humboldt N Spit of Humboldt Bay, W side Samoa Rd. near the boat ramp 5 Comment
  HSC45285  Logfia gallica R. W. Becking 1978-5-21 Humboldt Coast Guard Station on the N Spit to Humboldt Bay in bunker area Comment
  UC1103160  Lolium multiflorum Joseph P. Tracy 1948-6-13 18043 Humboldt 7 mi nw Blocksburg (Larrabee Creek); Larrabee 304 Comment
  UC1117652  Lolium multiflorum C. L. Hitchcock 1963-7-14 22906 Humboldt along Eel River at Fern Bridge; along Eel River Comment
  HSC10304  Lolium perenne W. F. Nickel 1965-5-16 Humboldt N Arcata next to the Humboldt Motor Hotel. Comment
  HSC10308  Lolium perenne Paul Shields 1955-6-10 Humboldt Arcata, Humboldt State University campus. Comment
  HSC10312  Lolium perenne N. R. Waite 1965-5-19 43 Humboldt W edge of Humboldt State University campus. Comment
  HSC47797  Lolium perenne Michael A. Watkins 1978-6-10 1 Humboldt Arcata, E side of the 7th Street overpass to Hwy. 101 Comment
  UC1103482  Lolium perenne Joseph P. Tracy 1937-6-6 15331 Humboldt Ferndale 15 Comment
  UC180491  Lolium perenne Joseph P. Tracy 1913-6-10 4088 Humboldt Bridgeville; Northern Coast Ranges, Bridgeville 304 Comment
  UC906633  Lomatium dissectum var. dissectum Joseph P. Tracy 1942-6-21 17220 Humboldt at Willow Creek Trinity R. Valley 152 Comment
  HSC98968  Lomatium dissectum var. multifidum C. Witte 2007-5-22 76 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1422 Comment
  HSC56050  Lomatium macrocarpum G. L. Clifton, Terry Griswold 1979-7-31 11646 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC56077  Lomatium macrocarpum G. L. Clifton, Terry Griswold 1979-7-31 11756 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC74465  Lomatium macrocarpum M. A. Baker 1980-5-18 1328 Humboldt Near Black Mtn. 792 Comment
  UC1197153  Lomatium macrocarpum Joseph P. Tracy 1949-8-4 18417 Humboldt ridge top 1 mi. w. Mud Springs (Trinity Summit); Trinity Summit 1158 Comment
  HSC44441  Lomatium tracyi Barbara Kelly 1978-5-1 592 Humboldt Intersection with road sign saying Grouse Mtn. Lookout 2 mi., Horse Mtn. 15 mi. Comment
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Jan 16 2014
  HSC46923  Lomatium tracyi Brad Klipfel 1974-5-27 381 Humboldt Horse Mtn. Comment
  HSC45502  Lomatium utriculatum M. Alcasas 1978-4-7 6 Humboldt Beside Barry Rd., 125 yds. from junction with Freshwater Rd. 857 Comment
  RSA254740  Lomatium vaginatum Thomas W. Nelson, James Nelson 1973-5-28 965 Humboldt McKeown Ranch north of Dinsmore. Comment
  SBBG7350  Lonicera hispidula H. and M. Dearing 1933-5-15 1852 Humboldt Garberville Comment
Read comments
Oct 13 2014
  RSA99375  Lonicera hispidula var. vacillans F. W. Peirson 1926-7-13 7054 Humboldt Near Blue Lake, Mad River. Comment
  SEINET5222458  Lonicera involucrata Unknown 2002-8-22 85 Humboldt McKinleyville, along Fischer Road just N of the Mad River Comment
  HSC3924  Lonicera involucrata var. ledebourii A. E. Inman 1962-5-25 Humboldt Mad River, Lindsay Creek Jct. Comment
  POM284249  Lonicera involucrata var. ledebourii Lyman Benson 1928-7-10 816 Humboldt Clam Beach, Trinidad. 15 Comment
  SBBG7360  Lonicera involucrata var. ledebourii M. J. Cody 1938-7-18 Humboldt near Trinidad Comment
  HSC24921  Lotus aboriginus D. E. Anderson 1965-5-8 3666 Humboldt Hwy. 299, E of Blue Lake, between bridge over N Fork Mad River and Lord Ellis Summit. Comment
  UC1128989  Lotus aboriginus A. E. Wieslander 1931-5-21 212 Humboldt Kneeland China Flat Quad. Comment
  HSC28150  Lotus aboriginus Chris Gist 1971-6-19 39 Humboldt Hwy. 299, 10 mi. E of Blue Lake. Comment
  HSC39720  Lotus corniculatus D. E. Anderson, J. P. Smith 1971-6-28 - 1256 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  HSC96477  Lotus corniculatus Gordon Leppig 1997-6-19 444 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  UC1223405  Lotus denticulatus Joseph P. Tracy 1934-6-14 13219 Humboldt Horse Mountain 1432 Comment
  UC1197310  Lotus formosissimus J. P. Tracy 1901-6-30 1200 Humboldt immeditate vicinity Eureka 0 Comment
  HSC78921  Lotus humistratus Jimerson, Imper 1982-5-17 1441 Humboldt Near Ashfield Ridge. 822 Comment
  SEINET6932536  Lotus micranthus Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt East end of Bald Hills, southeast of Orick. Comment
  SEINET3694377 Image available Lotus oblongifolius Joseph P. Tracy 1930-7-16 8997 Humboldt South Fork Mountain; McKay Camp 1676 Comment
  UC1565793  Lotus purshianus var. purshianus R. Spellenberg 1990-7-10 Humboldt 11 air e Burnt Ranch at Buck Flat (at junction of USFS Rd 5N01 and USFS Rd 1, 12 mi s of Berry Summit (on CA Hwy 299) on USFS Rd 1, extreme e edge of county); Buck Flat 1432 Comment
  UC170028  Lotus purshianus var. purshianus Joseph P. Tracy 1912-8-3 3964 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC726597  Lotus purshianus var. purshianus A. A. Heller 1923-7-9 Humboldt between Eureka and Fortuna Comment
  UC1223420  Lotus purshianus var. purshianus Joseph P. Tracy 1933-8-30 13021 Humboldt Titlow Mountain Grouse Mountain 1524 Comment
  UCR25843  Lotus uliginosus David Edwards 1974-8-12 84 Humboldt N side of 7th Street, just west of its overpass of U.S. Hwy 101, Arcata. 18 Comment
  HSC57342  Lotus unifoliolatus var. unifoliolatus Overton, Butler 1979-7-26 10118 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  HSC43172  Lotus unifoliolatus var. unifoliolatus R. Sutherland 1976-8-13 6 .13876 Humboldt Whittemaore Grove at edge of forest 213 Comment
  UC1565794  Lotus yollabolliensis R. Spellenberg 1990-7-9 10230 Humboldt ca 1 mi n Blake Mtn. (extreme e edge of county, 7 air mi wnw of Hyampom, 40 mi s of Calif. Hwy. 299 and Berry Summit on USFS Rd 1); South Fork Mountain 1767 Comment
  SEINET11810522  Luina hypoleuca J. P. Tracy 1944-1 17489 Humboldt near Romanzoffia Creek, Willow Creek Canyon, along Trinity Highway 366 Comment
  CAS-BOT-BC201192  Lupinus Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  RSA104807  Lupinus adsurgens var. adsurgens E. R. Drew, Chestnut 1888-7-21 146385 Humboldt S Fork Mtn. Comment
  HSC49089  Lupinus arboreus Patricia Shesgreen 1978-8-12 135 Humboldt 1/2 mi. E of Samoa Cookhouse on Vance Ave., Samoa. Comment
  RSA89761  Lupinus arboreus var. arboreus P. A. Munz 1954-7-25 19881 Humboldt North of Samoa. Comment
  HSC71165  Lupinus bicolor Thomas W. Nelson 1977-5-30 3411 Humboldt Base of Eight Mile Ridge upstream from Anderson's Ford. 701 Comment
  JEPS64982  Lupinus bicolor Lincoln Constance 1934-5-26 664 Humboldt s end Dyerville (South Fork Eel River); South Fork Eel River 45 Comment
  NY15833  Lupinus constancei T. W. Nelson 1982-7-9 7079 Humboldt Blocksburg quadrangle. Sepentine barrens on Mt. Lassic (Signal Peak) and saddle to east. 1767.8 Comment
  HSC103130  Lupinus elmeri M. Mesler 2009-7-31 814 Humboldt South Fork Mtn. FS 1, 7.7 miles north of intersection with 4N12 1767 Comment
  JEPS82235  Lupinus lapidicola Roger Raiche 1983-7-19 30538 Humboldt King Range, Saddle Mountain, King Ridge Trail Rd. Saddle Mountain; King Range, , King Ridge Trail Rd. 853 Comment
  HSC76189  Lupinus latifolius Overton, Butler 1979-7-24 9779 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  POM276514  Lupinus latifolius subsp. latifolius Lyman D. Benson 1929-7-19 1867 Humboldt Road to Matole River above Bull Creek. Comment
  UCD107974  Lupinus littoralis Joseph P. Tracy 1900-7-4 870 Humboldt Ocean Beach at Humboldt Bay. Comment
  SD42562  Lupinus polyphyllus Carl B. Wolf 1937-8-11 9144 Humboldt 0.5 mile east of Alton. 21 Comment
  SBBG13914  Lupinus rivularis H. and M. Dearing 1933-5-17 2957 Humboldt N of Big Lagoon Comment
  UC503017  Lupinus rivularis Joseph P. Tracy 1927-6-18 8189 1/2 Humboldt Capetown; Northern Coast Ranges, Capetown 304 Comment
  HSC14894  Lupinus variicolor Francis Winter 1960-4-19 Humboldt Samoa Pennisula 6 mi. W of Arcata. Comment
  SD53197  Lupinus variicolor Darley F. Howe 1962-5-21 Humboldt 11.5 miles north of Garberville on Hwy 101 91 Comment
  UC1152130  Luzula comosa Joseph P. Tracy 1929-4-28 8555 Humboldt near w side South Fork Trinity River (on Manzanita Flat); Trinity River Valley, near South Fork <Trinity River> 182 Comment
  CAS-BOT-BC436746  Luzula comosa var. comosa Harley P. Chandler 1901-5-1 1159 Humboldt North Coast Ranges: Humboldt Bay 30 Comment
  UC1152138  Luzula comosa var. laxa Joseph P. Tracy 1947-7-5 17816 Humboldt Meadow at Box Camp, on west side Trinity Summit 1463 Comment
  RSA368890  Luzula comosa var. laxa Henry M. Pollard 1948-7-22 s.n. Humboldt Perch Creek Canyon, near Orleans. Comment
  JEPS121643  Luzula multiflora Jennifer Buck, Danielle Roach 2009-8-19 Humboldt Kerlin Fen, South Fork Mountain. Sloping fen on schist, NE aspect. Blake Mountain quadrangle. SFM06A Comment
  HSC98527  Luzula parviflora Cara Witte 2008-7-25 937 Humboldt At intersection with Forest Service Road 5N10C and Forest Service Road 5N10. 1346 Comment
  SDSU11831  Luzula parviflora W. A. Bemis 1964-5-8 277 Humboldt Freshwater forest, Freshwater. 61 Comment
  SEINET8717658 Image available Luzula parviflora H. E. Parks, S. T. Parks 1952-1 22446 Humboldt Bishop Pine Lodge. Trinidad. Comment
  CAS-BOT-BC215681  Lycopus uniflorus Carl B. Wolf 1927-8-22 786 Humboldt Big Lagoon Comment
  HSC99631  Lysichiton americanus Gordon Leppig 1998-3-25 728 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  UC1191231  Lysichiton americanus Malcolm A. Nobs and S. Galen Smith 1949-8-3 1183 Humboldt southern outskirts of Eureka Comment
  RSA183502  Lysichiton americanus T. L. Grosz 1964-5-1 C Humboldt 300 yards up on Park Ave. and behind Myrtle Ave. Comment
  SEINET11770339  Lysichiton americanus F. H. Utech 1986-1 86 -416 Humboldt between Capetown & Ferndale along Mattole Creek, SW slope of Bear River Ridge 100 Comment
  UC176174  Lysichiton americanus Joseph P. Tracy 1913-3-30 4029 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  RSA0023003  Lythrum Robert F. Thorne, P. C. Everett 1965-8-9 35324 Humboldt Clam Beach County Park: along highway. 3 Comment
  RSA0015871  Lythrum hyssopifolia I. L. Wiggins 1932-7-19 5889 Humboldt Near Clam Beach, about 8 mi. N of Arcata. Comment
  HSC101056  Lythrum salicaria Sydney Carothers 1997-8-19 207 Humboldt Hwy. 36, north end of dividerless road; private property 732 Comment
  UC494086  Madia elegans H. E. Parks and J. P. Tracy 1930-5-25 882 Humboldt Laribee Valley 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
  CAS-BOT-BC343027  Madia gracilis Doris K. Kildale 1928-6-24 5282 Humboldt Horse Mountain 914 Comment
  HSC44130  Madia gracilis Thomas W. Nelson, Jane P. Nelson 1977-7-4 3607 Humboldt Along road N from Alder Spring 1555 Comment
  HSC49984  Madia gracilis M. A. Baker 1979-6-7 786 Humboldt N bank of road to Snow Mtn. 610 Comment
  UC165190  Madia gracilis Joseph P. Tracy 1911-6-25 3250 Humboldt at Bucksport; Eureka 0 Comment
  UC175981  Madia gracilis Joseph P. Tracy 1908-6 2796 Humboldt Valley of Van Duzen River; Northern Coast Ranges, Buck Mountain 762 Comment
  UC176479  Madia gracilis Joseph P. Tracy 1908-6 2869 Humboldt Valley of Van Duzen River; Buck Mountain 762 Comment
  HSC39946  Madia sativa Linda M. Barker 1976-7-5 1636 Humboldt 3 mi. W of Arcata. Comment
  RSA47169  Madia sativa Doris K. Kildale 1927-6-25 s.n. Humboldt Shelter Cove. Comment
  CHSC23305  Maianthemum dilatatum Robert F. Thorne; P. Everett 1965-8-7 Humboldt Big Lagoon. 1 Comment
  CHSC32860  Maianthemum dilatatum Lora L. Anderson 1981-4-26 1 Humboldt Ca. 5 m n on Clam Beach Rd, 0.5 km e of Hwy 101, 9.5 mi n of Arcata. 0 Comment
  HSC15594  Maianthemum dilatatum Harvey Doerksen 1962-5-22 27 Humboldt Azalea Reserve State Park near Mad River Comment
  RSA137266  Maianthemum dilatatum I. L. Wiggins 1957-6-19 14131 Humboldt East side of highway, Trinidad. Comment
  HSC70565  Maianthemum racemosum subsp. amplexicaule M. A. Baker 1980-7-23 3186 Humboldt Near Orleans Mtn. 1859 Comment
  HSC15654  Maianthemum racemosum subsp. amplexicaule J. R. Eichelberger 1964-5-5 71 Humboldt 0.5 mi. E of entrance to Azalea State reserve Comment
  RSA20847  Maianthemum stellatum Carl B. Wolf 1937-6-18 8887 Humboldt Table Bluff between Humboldt Bay and Eel River. 30 Comment
  HSC58709  Malacothrix floccifera Griswold, Butler 1979-7-12 7241 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  UC166803  Malacothrix floccifera Joseph P. Tracy 1911-7-4 3279 Humboldt along Willow Creek, a tributary of Trinity River Northern Coast Ranges, Trinity River 152 Comment
  HSC100442  Malacothrix obtusa Carl C. Marshall Jun 1887 458 Humboldt Near Harris. Comment
  UC14182  Malus fusca W. C. Blasdale 1896-6-1 Humboldt Freshwater Comment
  UCD116540  Malva verticillata Paul Holzberger 1981-8-24 s.n. Humboldt 1251 Williams Street, Eureka. Comment
  POM87677  Marah oregana L. R. Abrams, R. Bacigalupi 1922-6-25 8283 Humboldt Big Lagoon, south of Orick. Comment
  UCR51832  Marah oregana J. D. Ackerman 1975-6-10 451 Humboldt Humboldt Bay, c. 1 mi. north of Samoa bridge turnoff from Samoa Blvd., south of Manila Comment
  RSA273320  Marah oregana J. D. Ackerman 1975-6-10 451 Humboldt 1 mile N of Samoa Bridge turnoff from Samoa Blvd., S of Manila, Humboldt Bay Comment
  HSC25766  Medicago lupulina Jana Kattenhorn 1970-10-28 150 Humboldt Mad River Bottoms, N Bank off Essex, off Hwy. 299 Comment
  UC1197431  Medicago polymorpha Joseph P. Tracy 1932-5-1 9883 Humboldt Vicinity of Garberville North Coast Ranges 121 Comment
  HSC14970  Medicago polymorpha J. E. Lankila 1962-5-6 16 Humboldt W bank of Eel River across from Shively, .25 mi. from Bear Creek Comment
  HSC61766  Medicago sativa Ruby Van Deventer 1963-7-1 Humboldt Along Klamath River at Pecwan Comment
  HSC99797  Melianthus major Gordon Leppig 2005-1-6 2201 Humboldt PALCO timberlands, Van Duzen watershed, Fox Creek Drainage, 10 m E of Fox Creek Rd. on Rd. L35 60 Comment
  UC1103753  Melica aristata Joseph P. Tracy 1936-8-7 15105 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  CAS-BOT-BC269350  Melica californica Joseph P. Tracy 1921-5-30 5491 Humboldt Northern Coast Ranges. Kneeland Prairie 762 Comment
  UCD87130  Melica californica August L. Hormay 1932-5-12 s.n. Humboldt Bull Creek Road, Redwood Highway, north of Graberville. Comment
  UC1103754  Melica harfordii Joseph P. Tracy 1941-7-5 16968 Humboldt Willow Creek; Trinity River Valley 152 Comment
  SEINET10860833  Melica stricta Joseph P. Tracy 1935-7-28 Tracy 14333 Humboldt Shell rock slopes. Trinity Summit. Rocky Exposed Places, Head of Brett Hole. 1829 Comment
  UCD88675  Melica subulata R. Tofsrud 1949-7-1 s.n. Humboldt On road from Scotia to Capetown. Comment
  CAS-BOT-BC262480  Melica torreyana Joseph P. Tracy 1935-5-25 13887 Humboldt North Coast Ranges. North Dobbyn Creek 152 Comment
  JEPS63289  Melissa officinalis W. L. Jepson 1936-8-6 17854 Humboldt Philipsville, S. Fork Eel R. S. Fork Eel R., Philipsville Comment
  UC1225834 Image available Mentha aquatica Joseph P. Tracy 1943-11-14 17451 Humboldt 2 mi s Field's Landing (along edges of foothills); s of Field's Landing 6 Comment
  UC1225833  Mentha canadensis Joseph P. Tracy 1941-8-17 16993 Humboldt borders of pond near Three Cabins (se of Butler Valley); se of Butler Valley 457 Comment
  UC577379  Mentha canadensis Joseph P. Tracy 1924-8-31 6854 Humboldt Klamath River at mouth of Bluff Cr.; Klamath River at mouth Bluff Cr. 91 Comment
  UC1222666  Mentha spicata Joseph P. Tracy 1950-9-22 19370 Humboldt 8 mi below Orleans (Klamath River near Slate Creek); Klamath River near Slate Creek 121 Comment
  UC195433  Mentha spicata Joseph P. Tracy 1915-9-5 4666 Humboldt Eureka; Northern Coast Regioin, Eureka 0 Comment
  HSC37417  Menziesia ferruginea Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 516 Humboldt Along Lost Man Creek. 38 Comment
  CAS-BOT-BC348375  Micropus californicus var. californicus Doris K. Kildale 1926-4-30 1915 Humboldt Fruitland Hill - Harris Road Comment
  CAS-BOT-BC322622  Microseris Joseph P. Tracy 1936-6-28 15027 Humboldt Lake Prairie, Baldt Mountain 1066 Comment
  UC1239516  Microseris bigelovii Joseph P. Tracy 1927-6-8 8117 Humboldt Trinidad 3 Comment
  UC1239517  Microseris bigelovii Joseph P. Tracy 1922-5-28 6057 Humboldt Little River Beach Northern Coast Ranges 6 Comment
  JEPS13225  Microseris laciniata subsp. laciniata Lincoln Constance 1934-5-24 624 Humboldt s slope lower Look Prairie; South Fork Eel River, Bull Creek region, s slope of Lower Lo 121 Comment
  UC1223043  Microseris laciniata subsp. laciniata Joseph P. Tracy 1947-6-8 17706 Humboldt by old Strong's District School House (5 mi e of town); Carlotta 60 Comment
  UC582737  Microseris laciniata subsp. laciniata Joseph P. Tracy 1936-6-17 14942 Humboldt Bridgeville 198 Comment
  HSC6101  Microseris nutans W. K. Parks 1933-7-15 5263 Humboldt South Fork Mtn. 1677 Comment
  HSC32151  Microsteris gracilis D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5613 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC98700  Mimulus alsinoides Cara Witte 2007-5-22 82 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1392 Comment
  JEPS1744  Mimulus alsinoides Clyde Ritchie Bell 1951-4-21 1045 Humboldt 7 mi s Hoopa Comment
  UC147924  Mimulus arvensis Joseph P. Tracy 1909-6-20 3000 Humboldt Freshwater Creek Northern Coast Region, Humboldt Bay region 0 Comment
  HSC20692  Mimulus aurantiacus var. aurantiacus D. E. Anderson 1961-8-25 1755 Humboldt 1.5 miles S of Trinidad. overlooking beach Comment
  HSC39618  Mimulus breweri Thomas W. Nelson, Jane P. Nelson 1976-6-15 2722 Humboldt Along old trail from lookout to Blocksburg 1585 Comment
  UC1196775  Mimulus cardinalis Joseph P. Tracy 1908-6 2928 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  RSA135338  Mimulus dentatus Volney Rattan 1882-06 s.n. Humboldt Humboldt Comment
  RSA80079  Mimulus dentatus F. W. Peirson 1926-7-13 7055 Humboldt On south side of Mad River, near Blue Lake. Comment
  HSC71741  Mimulus guttatus M. A. Baker 1980-6-26 2421 Humboldt Near Sims Creek 610 Comment
  RSA454335  Mimulus guttatus R. S. Woglum 1938-8-28 2044 -A Humboldt Grounds of Trinidad State Park, south of Trinidad. (northcentral-coastal Humboldt) Comment
  HSC100672  Mimulus microphyllus Carl C. Marshall Apr 1887 387 Humboldt Supply Creek, near Hoopa. Comment
  HSC44818  Mimulus nanus var. nanus Thomas W. Nelson, Jane Nelson 1977-6-19 3487 Humboldt Along road on Goat Hill; unsurveyed section east of Section 12 1616 Comment
  UC1173697  Mimulus pilosus Joseph P. Tracy 1939-9-24 16502 Humboldt near Blue Lake; Mad River 15 Comment
  UC582442  Mimulus pilosus Joseph P. Tracy 1925-11-1 7300 Humboldt Shively; on river bar 60 Comment
  HSC55325  Mimulus primuloides var. primuloides Griswold, Butler 1979-7-12 7155 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC32281  Minuartia douglasii D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5631 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  CAS-BOT-BC388631  Minuartia douglasii Thomas W. Nelson; James L. Nelson 1980-6-10 5413 Humboldt Six Rivers National Forest. Along Swayback Ridge Road 2.5 miles north of junction with road 1S07 1463 Comment
  HSC41205  Minuartia nuttallii subsp. gregaria Thomas W. Nelson, Jane P. Nelson 1977-7-1 3548 Humboldt Ridge N of Bear Creek, unsurveyed section E of 25 1555 Comment
  UC1198862  Mitella ovalis Joseph P. Tracy 1918-6-16 4956 Humboldt Eureka Northern Coast Region 0 Comment
  HSC102031  Mitella trifida M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 933 Humboldt Along trail from Rustic Camp to Patterson Meadows 1534 Comment
  HSC16011  Modiola caroliniana J. P. Tracy 1940-10-18 16777 Humboldt Trinidad 3 Comment
  HSC50941  Moehringia macrophylla G. L. Clifton, Overton 1979-6-3 3764 Humboldt Near Pine Mtn., close to the town of Forest Glen 1495 Comment
  UC668120  Moehringia macrophylla Joseph P. Tracy 1935-7-25 14225 Humboldt near Corral Prairie (Trinity Summit); , near Corral Prairie 1584 Comment
  SEINET3996427 Image available Monardella odoratissima Joseph P. Tracy 1926-6-20 7657 Humboldt Horse Mountain 2225 Comment
  HSC102085  Monardella odoratissima subsp. glauca M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 989 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC176998  Monardella odoratissima subsp. glauca Joseph P. Tracy 1912-7-31 3928 Humboldt Near summit Buck Mountain; Northern Coast Ranges 1676 Comment
  CAS-BOT-BC215569  Monardella odoratissima subsp. pallida Doris K. Kildale 1925-8-18 1229 Humboldt Trinity Summit 1828 Comment
  UC577345  Monardella odoratissima subsp. pallida Joseph P. Tracy Jul 16 1930-Jul 19 1930 8911 Humboldt South Fork Mountain, near McKay Camp; Northern Coast Ranges 1676 Comment
  JEPS62397  Monardella villosa subsp. villosa W. L. Jepson 1927-7-3 12370 Humboldt Garberville South Fork Eel River 365 Comment
  UC577376  Monardella villosa subsp. villosa Joseph P. Tracy 1937-7-11 15427 Humboldt Vicinity Garberville 121 Comment
  HSC102006  Montia chamissoi M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 907 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC98897  Montia fontana Cara Witte 2008-6-9 693 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1454 Comment
  UC673004  Montia parvifolia Joseph P. Tracy 1935-7-24 14170 Humboldt Trinity Summit, near Ranger Station Trinity Summit 1828 Comment
  HSC49508  Morella californica R. York 1979-4-13 221 Humboldt N of College Cove Comment
  HSC89544  Morella californica M. Roantree 1985-4-28 14 Humboldt W side of Trinidad Head, along trail Comment
  HSC58681  Muhlenbergia filiformis G. L. Clifton, Griswold 1979-8-2 12276 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UCD86804  Muhlenbergia mexicana Joseph P. Tracy 1918-9-29 5115 Humboldt South Fork of Eel River, 4 miles above the mouth. 60 Comment
  CAS-BOT-BC101669  Myrica californica Doris K. Kildale 1926-11-28 2866 Humboldt Patrick's Point Comment
  HSC54536  Navarretia capillaris Overton, Butler 1979-7-23 9487 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  UC908387  Navarretia divaricata Joseph P. Tracy 1930-7-23 9119 Humboldt Horse Mountain Northern Coast Ranges 1432 Comment
  UC908394  Navarretia divaricata subsp. vividior Joseph P. Tracy 1934-7-9 13326 Humboldt n of Bell Springs; Northern Coast Ranges, Chamise Mt. 1066 Comment
  HSC17144  Navarretia pubescens William J. Ferlatte, B. D. Rogers 1966-6-15 2098 Humboldt E of Bridgeville on Hwy. 36 671 Comment
  POM92408  Navarretia squarrosa L. R. Abrams 1922-6-25 8239 Humboldt 2 miles south of Fortuna Comment
  UC1198524  Navarretia tagetina Joseph P. Tracy 1942-7-1 17362 Humboldt opposite Buck Mountain (Dinsmore's, along Van Duzen River); Northern Coast Ranges, Van Duzen River 762 Comment
  UC198635  Navarretia viscidula Joseph P. Tracy 1916-6-20 4732 Humboldt Alder Point Northern Coast Ranges 152 Comment
  UC908184  Navarretia viscidula Joseph P. Tracy 1927-7-24 8294 Humboldt Upper Mattole 152 Comment
  HSC13584  Nemophila menziesii H. E. Parks, J. P. Tracy 1930-5-25 797 Humboldt Laribee Valley 793 Comment
  HSC45622  Nemophila menziesii Diane L. Reed 1978-4-22 28 Humboldt Tish Tang Campground, 5 miles north of Willow Creek on State Hwy. 96. Comment
  UC562582  Nemophila menziesii var. atomaria Joseph P. Tracy 1923-4-15 6191 Humboldt at Berry's North Coast Ranges, , Berry's (Redwood Creek) 274 Comment
  UC562586  Nemophila menziesii var. atomaria Joseph P. Tracy 1927-4-17 7903 Humboldt 274 Comment
  UC162684  Nicotiana quadrivalvis Joseph P. Tracy 1911-7-10 3500 Humboldt near Mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  HSC99041  Noccaea montana subsp. montana Cara Witte 2008-7-1 777 Humboldt Spike Buck Mountain. Forest Service Road 5N18. Near intersection with National Forest 1. 1462 Comment
  HSC8077  Notholithocarpus densiflorus F. Sandborg, J. Sandborg 1968-7-19 58 Humboldt Bluff Creek near Notice Creek 793 Comment
  SDSU6713  Notholithocarpus densiflorus Harvey 1939-7-16 3003 Humboldt Comment
  HSC22510  Notholithocarpus densiflorus var. densiflorus D. E. Anderson 1963-9-1 2805 Humboldt Near Kneeland 732 Comment
  HSC20657  Nuttallanthus texanus R. J. Vernimen 1963-4-27 36 Humboldt 0.5 mi. off Samoa Rd., behind the Georgia-Pacific dump, 7.5 mi. SW of Arcata. Comment
  HSC90649  Nuttallanthus texanus J. Meninga, L. Watson Mar 1991 27 Humboldt Mad River Slough and dunes, Arcata, W of trail 20 ft. from parking lot Comment
  HSC98741  Oemleria cerasiformis Cara Witte 2008-6-2 673 Humboldt White Oak Opening. 1231 Comment
  CHSC31294  Oenanthe sarmentosa Mark Stopher 1980-6-4 106 Humboldt Along Elk River near Hwy 101 bridge. 1 Comment
  HSC23742  Oenanthe sarmentosa Tim Baroni 1971-6-23 3 Humboldt About 1 mi. S of Ferndale on Mattole Rd. Comment
  UCD81683  Oenanthe sarmentosa Chuck Hughes 2009-6-18 102 Humboldt Near Arcata. NE corner of intersection of Old Samoa Road and Pacheco Road. 1 Comment
  CDA38490  Oenanthe sarmentosa Tario 1932-10-7 s.n. Humboldt [no further data] 0 Comment
  CDA38174  Oenothera villosa subsp. strigosa E. C. Whitney 1966-8-3 s.n. Humboldt Orleans; Ferris Property. 0 Comment
  CAS-BOT-BC499865  Orobanche fasciculata L. R. Abrams 1918-6-15 7119 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  UC1197445  Orobanche uniflora subsp. occidentalis Joseph P. Tracy 1948-5-31 18004 Humboldt Near Harris. Comment
  UC1197450  Orobanche uniflora subsp. occidentalis Joseph P. Tracy 1908-6 2881 Humboldt Valley of Van Duzen River, opposite Buck Mountain. Comment
  CAS-BOT-BC238377  Orthocarpus Joseph P. Tracy 1935-7-24 14171 Humboldt Trinity Summit, near ranger station 1828 Comment
  RSA407950  Orthocarpus purpurascens J. P. Smith, Thomas W. Nelson 1977-6-30 9210 Humboldt Samoa Peninsula just east of the drag strip. Comment
  RSA246669  Orthocarpus purpurascens var. latifolius Robert F. Thorne, Percy C. Everett 1965-8-7 35219 Humboldt Samoa Peninsula. 3 Comment
  HSC16722  Oxalis articulata subsp. rubra N. D. Dennis 1965-4-4 6 Humboldt Corner of F and 9th street, in Eureka Comment
  JEPS43130  Oxalis corniculata Joseph P. Tracy 1918-11-17 5119 Humboldt Elk River Corners Northern Coast Ranges, Eureka 0 Comment
  UC1103424  Oxalis oregana Joseph P. Tracy 1901-4-7 1006 Humboldt Eureka Northern Coast Ranges 0 Comment
  HSC59584  Oxalis oregana Rick Lundquist 1979-4-24 36 Humboldt Arcata, lower Church parking lot at E end of 16th St. 46 Comment
  HSC69850  Oxalis oregana R. Kalal 1979-5-5 42 Humboldt Fickle Hill Rd., 1.0 mi. E of 11th St. 183 Comment
  UC502973  Oxalis pes-caprae Joseph P. Tracy 1927-3-23 7845 Humboldt Eureka Northern Coast Ranges Comment
  UC212875  Panicum acuminatum var. acuminatum Joseph P. Tracy 1920-8-15 5356 Humboldt Klamath River Bluff Creek; Northern Coast Ranges, Klamath River at Bluff Creek 152 Comment
  HSC26886  Papaver somniferum Keith Chamberlin 1973-7-24 Humboldt 10th and F St., Arcata Comment
  SEINET182648 Image available Parapholis incurva S. K. Harris, J. P. Tracy 1936-6-6 3218 Humboldt Eureka, California Comment
  UCSB15925  Parentucellia viscosa Breedlove, Dennis 1962-6-8 Humboldt Near coast on U.S. Highway 101, 3 miles south of Orick Comment
  HSC37501  Paspalum dilatatum A. M. Montalvo, J. D. Ackerman 1975-8-9 629 Humboldt Arcata, Hwy. 101 and Guintoli Lane. Comment
  UC1220311  Paspalum distichum D. E. Anderson 1963-9-29 2846 Humboldt about 5 1/2 mi n Weitchpec (Fish Lake); Fish Lake Comment
Read comments
Jun 18 2011
  BLMAR620  Paxistima myrsinites Jennifer Wheeler 2011-5-24 620 Humboldt Lacks Creek, Pine Ridge/Stormy saddle road junction 975 Comment
  HSC42039  Pedicularis densiflora Rich White 1977-4-23 17 Humboldt Chamise Mtn. 791 Comment
  JEPS19071  Pellaea andromedifolia Lincoln Constance 1934-6-4 813 Humboldt S Fork Eel River; Bull Creek Region Comment
  SEINET4536600 Image available Pellaea andromedifolia Joseph P. Tracy 1921-5-30 5495 Humboldt Kneeland Prairie 762 Comment
  UC1299764  Pellaea brachyptera Freed W. Hoffman 1949-7-15 3007 Humboldt e slope Mule Slide (Mt Lassic area a little s of Blue Ridge); Mt Lassic area Comment
  HSC56186  Penstemon anguineus Gilbert Muth 1979-8-1 12118 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  BLMAR273  Penstemon anguineus Jennifer Anthony-Wheeler 1999-7-30 273 Humboldt Lacks Creek, occuring in open, logged area of coniferous forests 1219 Comment
  JEPS7213  Penstemon anguineus Lincoln Constance 1934-6-19 905 Humboldt Grasshopper Pk near summit South Fork Eel River, Bull Creek Region 914 Comment
  UCD124036  Penstemon anguineus Thomas Nelson; Jane Nelson 1976-7-1 2907 Humboldt east side of Red Lassic, beside Road 1S07. 1676 Comment
  HSC55839  Penstemon deustus G. L. Clifton, Terry Griswold 1979-7-25 10786 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC76256  Penstemon heterophyllus Denis Kearns 1981-7-6 43 Humboldt Near Mosquito Lake 1122 Comment
  HSC96250  Penstemon laetus subsp. sagittatus Laurel Goldsmith, Wanda Naylor 2005-6-15 11 Humboldt 1 mi. SE of Grouse Mtn. on unnamed F.S. road 1400 Comment
  JEPS11632  Penstemon laetus var. sagittatus Joseph P. Tracy 1937-7-2 15395 B Humboldt on ridge 2 mi e Grove's Prairie (Trinity Summit); , e of Grove's Prairie 1524 Comment
  NY604545  Penstemon laetus var. sagittatus F. W. Pennell 1940-7-7 26094 Humboldt Grouse Mountain, west of Salyer 1463.0 Comment
  HSC76252  Penstemon parvulus Denis Kearns 1981-7-6 73 Humboldt Near Mosquito Lake 1256 Comment
  HSC63142  Penstemon procerus var. brachyanthus M. A. Baker 1979-6-27 932 Humboldt E of Oregon Creek, at the head of Grogan Hole Comment
  HSC44827  Penstemon purpusii Thomas W. Nelson, Jane Nelson 1977-7-4 3600 Humboldt Along old trail above Alder Springs 1555 Comment
  NY641276  Penstemon rattanii H. E. Parks 06 1951 s.n. Humboldt Kneeland, Camaron Hill Comment
  HSC61769  Pentagramma triangularis Ruby Van Deventer 1963-7-1 Humboldt Along the Klamath R. at Pecwan 239 Comment
  RSA0070754  Pentagramma triangularis Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  CAS-BOT-BC71619  Pentagramma triangularis subsp. triangularis Ira L. Wiggins 1957-6-21 14139 Humboldt E side of road, 1 mi. S of Garberville Comment
  SEINET196690  Perideridia gairdneri Joseph P. Tracy 1942-9-20 17324 Humboldt 2 miles S of Fields Landing 3 Comment
  UC314588  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1923-6-3 6255 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC709387  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1941-8-24 17038 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC906651  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1947-8-24 17894 Humboldt Box Camp Trinity Summit 1463 Comment
  HSC35616  Perideridia oregana Thomas W. Nelson, B. Reinhardt 1975-7-30 2113 Humboldt E of Pilot Rock Comment
  CAS-BOT-BC419192  Persicaria maculosa L. R. Abrams 1918-6-16 7193 Humboldt Willow Creek Comment
  CDA8459  Petasites frigidus var. palmatus E. C. Whitney 1964-4-1 Humboldt Kneeland. 0 Comment
  HSC98989  Petasites frigidus var. palmatus Cara Witte 2008-6-4 680 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near Horse Mountain mine. 1276 Comment
  SDSU391  Petasites frigidus var. palmatus D. F. Howe 1963-5-26 3553 Humboldt 2.8 miles east of Orick on Bald Hill road.n 427 Comment
  HSC64138  Phacelia bolanderi J. O. Sawyer, J. P. Smith, J. Cole 1977-7-2 3052 Humboldt Rd. 11N17 between Dagsaw Springs and Divide Lake 793 Comment
  JEPS1545  Phacelia corymbosa Joseph P. Tracy 1926-6-20 7624 Humboldt Horse Mountain Northern Coast Ranges 1402 Comment
  HSC13667  Phacelia heterophylla subsp. virgata D. E. Anderson 1962-5-1 2198 Humboldt 1 mi. W of Hoopa Comment
  HSC38128  Phacelia heterophylla subsp. virgata Thomas W. Nelson, James Nelson 1976-5-30 2618 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC1222898  Phacelia heterophylla subsp. virgata Joseph P. Tracy 1950-6-15 18802 Humboldt 7 mi Harris; Mail Ridge Comment
  HSC57166  Phacelia mutabilis Overton, Butler 1979-7-26 9971 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  HSC57184  Phacelia mutabilis Griswold, Butler 1979-7-10 6383 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  UC562568  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1935-5-25 13829 Humboldt Blocksburg 518 Comment
  UCD88333  Phalaris angusta A. A. Beetle; J. P. Tracy, G. L. Stebbins Jr. 1942-6-2 3465 Humboldt 1 mile E of Alton. Comment
  SEINET200963 Image available Phalaris californica J. P. Tracy 1934-6-21 13241 Humboldt Along hwy across Salmon Creek flats, around Humboldt Bay; N Coast Ranges. 6 Comment
  HSC49959  Philadelphus californicus Maralyn O'Meara 1974-7-17 555 Humboldt Along E border Comment
  RSA10146  Phleum pratense Joseph P. Tracy 1933-7-21 12822 Humboldt Valley of South Yager Creek 762 Comment
  HSC55333  Phlox adsurgens Griswold, Butler 1979-7-12 7177 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  JEPS71126  Phlox gracilis Joseph P. Tracy 1933-7-11 12699 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC1198563  Phlox gracilis J. P. Tracy 1902-6-3 1674 Humboldt near Hubbards's Station (on the Harris-Fruitland Ridge, se part of Humboldt Co.); Harris-Fruitland Ridge 609 Comment
  RSA609411  Phoradendron villosum Louis C. Wheeler 1958-8-7 7370 Humboldt Fort Baker Manganese Mine. Comment
  CHSC2361  Phyllospadix scouleri M. Anthony 1960-5-14 Humboldt Near Arcata. Comment
  CAS-BOT-BC452021  Phyllospadix torreyi W. R. Dudley 1899-1-1 s.n. Humboldt Trinidad Head Comment
  SEINET3882874  Physaria kingii subsp. cobrensis C. Reed, Kathryn W. Rollins 1981-6-6 81229 Humboldt 8a, Charles Sheldon Wildlife Refuge, 43 miles northeast of Cedarville.; 0 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-BC73447  Picea sitchensis Doris K. Kildale 1926-3-20 1544 Humboldt Big Lagoon Comment
  HSC70580  Pinus attenuata Gail Newton 1980-7-24 1775 Humboldt Near Somes Mtn. 1615 Comment
  CAS-BOT-BC78374  Pinus contorta L. R. Abrams 1916-7-18 6352 Humboldt Arcata to Trinidad Comment
  HSC12720  Pinus contorta C. E. Fellows 1970-10-7 374 Humboldt McKinleyville 0.25 mi. W of end of Murray Rd. near dunes Comment
  HSC1487  Pinus contorta J. W. Johnson 1962-4-29 1294 Humboldt Ridge 8, Lanphere Farm, Samoa Peninsula Comment
  UC665726  Pinus contorta subsp. contorta H. E. and S. T. Parks 1938-3-1 24125 Humboldt Spruce Cove Trinidad, Spruce Cove 60 Comment
  CAS-BOT-BC78981  Pinus muricata Elmer I. Applegate 1931-3-28 6626 Humboldt Near and north of Trinidad 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
  POM208985  Piperia candida Lincoln Constance 1934-5-27 708 Humboldt Humboldt Redwood Park, in Border Forest, bluff above Bull Creek, Flat Grove 61 Comment
  UC881326  Plagiobothrys bracteatus Alice Eastwood and John Thomas Howell 1937-6-23 4811 Humboldt Little Van Duzen River Comment
  UC552843  Plagiobothrys hispidulus Joseph P. Tracy 1935-7-25 14226 Humboldt wet meadow at Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UC1239619  Plagiobothrys nothofulvus Joseph P. Tracy 1933-5-20 12243 Humboldt Mattole Valley near Petrolia; Northern Coast Ranges 30 Comment
  UC249518  Plagiobothrys nothofulvus Joseph P. Tracy 1922-4-30 6019 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  JEPS68107  Plagiobothrys nothofulvus Lincoln Constance 1934-5-23 617 Humboldt above Look Prairie; Bull Creek Region, South Fork Eel River 365 Comment
  UC24546  Plagiobothrys reticulatus Harley P. Chandler May, 1901 1172 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 30 Comment
  UC1225811  Plantago lanceolata Joseph P. Tracy 1947-8-10 17882 Humboldt Eureka 30 Comment
  BLMAR262  Plantago lanceolata Jennifer Anthony-Wheeler 1998-7-14 262 Humboldt King range, strawberry rock grazing allotment 280 Comment
  HSC62991  Plantago lanceolata David Wheeler 1979-4-23 83 Humboldt N end of Heindon Rd. at turn-around Comment
  HSC84042  Plantago lanceolata C. J. Thomas 1983-5-9 29 Humboldt Adjacent to Hwy. overpass walkway near HSU 23 Comment
  HSC16831  Plantago subnuda J. P. Tracy 1906-6-17 2493 Humboldt Eureka 0 Comment
  SEINET10297967  Platanthera dilatata var. dilatata Unknown 1965-8-9 s.n. Humboldt BIG LAGOON: Elev. c. 10 ft Comment
  HSC102050  Platanthera leucostachys M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 954 Humboldt Patterson Meadows 1555 Comment
  RSA20791  Platanthera leucostachys Carl B. Wolf 1937-8-13 9256 Humboldt North Coast Range, 11 miles E of Hoopa Valley on new road towards Trinity Summit. 1524 Comment
  CAS-BOT-BC91633  Platystemon californicus Alice Eastwood; John Thomas Howell 1937-6-23 4807 Humboldt Little Van Duzen River. Comment
  CDA24588  Platystemon californicus E. Cohen 2002-4-15 21 Humboldt Eureka. Comment
  RSA256718  Platystemon californicus var. californicus John S. Palmer 1975-5-24 370 Humboldt Samoa Dunes; dunes off Samoa Blvd. across from the boat landing Comment
  UC999832  Plectritis congesta S. C. Dyal 1938-6-11 719 d Humboldt 2 mi e of Dinsmore Comment
  UCR45351  Plectritis congesta subsp. brachystemon Barry Silver 1986-4-23 540 Humboldt North Coast Range, Bair Road, 9.5-10 mi NW of the junction with Hwy 299; Pine Ridge Summit Area 997 Comment
  RSA256328  Pleuropogon refractus J. R. Reeder, C. G. Reeder 1973-5-26 6184 Humboldt 13 miles S of Klamath along Hwy 101 in Big Tree State Park 61 Comment
  RSA246887  Poa annua R. F. Thorne, P. Everett 1965-8-8 35255 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  UCD90384  Poa annua G. L. Stebbins Jr. 1942-6-2 3622 Humboldt 4 miles north of Bridgeville. Comment
  CAS-BOT-BC254712  Poa bolanderi Joseph P. Tracy 1932-7-12 10464 Humboldt Klamath Mountains. Head of Brett Hole 1828 Comment
  HSC73731  Poa bolanderi M. A. Baker 1980-7-19 3009 Humboldt Near Bret Hole. 1814 Comment
  UC1103189  Poa bulbosa Joseph P. Tracy 1938-7-4 15988 Humboldt Valley of S Yager Creek 762 Comment
  CAS-BOT-BC255122  Poa confinis Joseph P. Tracy 1927-4-24 7947 Humboldt Eureka, near bay shore 9 Comment
  UC205645  Poa douglasii Joseph P. Tracy 1917-5-30 4804 Humboldt sand dunes of Ocean Beach at Little River Comment
  UC207741  Poa douglasii Joseph P. Tracy 1917-5-30 4799 Humboldt at Little River Ocean Beach; Northern Coast Region Comment
  CAS-BOT-BC255848  Poa kelloggii Joseph P. Tracy 1906-5-20 2463 Humboldt Near Eureka, region about Humboldt Bay 152 Comment
  HSC90698  Poa macrantha Gail Newton 1982-6-5 3576 Humboldt Elk River Wildlife Area, Eureka. Comment
  UCD91549  Poa macrantha Joseph P. Tracy 1917-5-30 4799 Humboldt Ocean Beach at Little River. Comment
  HSC73570  Poa pratensis Gail Newton 1980-7-14 1507 Humboldt Near Last Chance Ridge. 1219 Comment
  RSA10072  Poa pratensis Joseph P. Tracy 1926-5-9 7469 .5 Humboldt Valley of south Yager Creek Comment
  HSC10749  Poa pratensis J. R. Eichelberger 1964-5-13 86 Humboldt S end of Mad River Bridge on Hwy. 101 Comment
  HSC73481  Poa secunda subsp. secunda Gail Newton 1980-7-11 1324 Humboldt Near Red Mtn. 1341 Comment
  HSC73790  Poa secunda subsp. secunda Gail Newton 1980-6-28 709 Humboldt Near Mad River Butte. 1536 Comment
  UC1103187  Poa trivialis Joseph P. Tracy 1936-6-28 15015 Humboldt e of Korbel (Bald Mt, Murphy Meadows) 975 Comment
  UC1103190  Poa unilateralis Joseph P. Tracy 1933-6-6 12500 Humboldt Trinidad, bluffs facing ocean Trinidad; Northern Coast Region 60 Comment
  UC1988935  Pogogyne zizyphoroides Joseph P. Tracy 1938-7-5 16005 Humboldt Carlotta 5 miles east of town, open flat by old Strong's District School House 45 Comment
  CHSC23080  Polygala californica Robert A. Schlising 1963-6-3 2581 Humboldt Coast Ranges. 3.5 miles north of Garberville. Comment
  HSC72626  Polygala cornuta J. P. Smith, J. O. Sawyer 1977-7-1 9226 Humboldt Six Rivers National Forest, Bluff Creek Campground. 76 Comment
  SEINET1004839  Polygala cornuta var. cornuta Joseph P. Tracy 1926-1 7744 Humboldt Trinity River Valley, Near the south fork 183 Comment
  JEPS50540  Polygonum davisiae W. L. Jepson 1902-7-16 2053 Humboldt Trinity Summit 2133 Comment
  UC672957  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1930-7-17 9015 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  RSA152547  Polygonum kelloggii Joseph P. Tracy 1932-7-10 10379 Humboldt Trinity Summit Corral Prairie, in wet meadow Comment
  UC1101205  Polygonum lapathifolium Malcolm A. Nobs and S. Galen Smith 1949-8-9 1232 Humboldt Town of Blue Lake; s side Comment
  UC672944  Polygonum paronychia Joseph P. Tracy 1927-1-15 7836 Humboldt sand dunes near Samoa; Humboldt Bay 6 Comment
  UC72026  Polygonum persicaria Chesnut and Drew 1888-7-10 Humboldt Jarnigan's 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
  CDA2926  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
  RSA279504  Polygonum polystachyum Thomas W. Nelson 1978-10-10 4555 Humboldt Growing on Hwy 101 right of way just N of Humboldt State University exit, 1.5 miles. Comment
  CDA2918  Polygonum sachalinense T. C. Fuller 1968-7-3 17447 Humboldt Northeast side of Highway 101 freeway overpass, Fields Landing. 0 Comment
  HSC35604  Polygonum spergulariiforme Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2015 Humboldt French Camp, Bald Hills. Comment
  SEINET3404060 Image available Polygonum spergulariiforme H. E. Parks, J. P. Tracy 1930-9-15 767 Humboldt Bald Hills, Kneeland Comment
  HSC39942  Polypodium glycyrrhiza Linda M. Barker 1976-3-11 1328 Humboldt 3 mi. W of Arcata Comment
  UCD136882  Polypodium glycyrrhiza M. Wiesendanger 1928-4-7 902 Humboldt Redwood Highway, Lane's Redwood Flat, probably the Franklin K. Lane Grove. Comment
  CHSC19517  Polypodium scouleri J. F. Knezevich 1968-5-13 429 Humboldt Collected near Arcata above Freshwater Forest. Comment
  POM188096  Polypodium scouleri Marcus E. Jones 1931-7-12 29178 Humboldt Alton. Comment
  RSA689965  Polypodium scouleri Charlotte M. Hoak 1936-8-15 376 Humboldt Patricks Point Comment
  UC519312  Polypodium scouleri Joseph P. Tracy 1933-6-6 12510 Humboldt cliffs along shore Trinidad; Northern Coast Region 6 Comment
  UC906716  Polypodium scouleri Joseph P. Tracy 1942-7-26 17291 Humboldt headwater of Grizzly Creek (Redwood House road) 609 Comment
  HSC10825  Polypogon interruptus J. P. Tracy 1927-7-16 8261 Humboldt Eureka 0 Comment
  UC207735  Polypogon interruptus Joseph P. Tracy 1916-9-5 4765 Humboldt 4 mi above mouth South Fork of Eel River; Northern Coast Ranges, South Fork of Eel River 60 Comment
  UCD51643  Polypogon interruptus J. B. Davy 1899-6-13 5515 Humboldt Near Pepperwood. Comment
  UC1132904  Polypogon monspeliensis H. S. Yates 1936-6-16 5679 Humboldt 1 mi ne Samoa; Eureka Quad. Comment
  UCD91310  Polypogon monspeliensis J. B. Davy; W. L. Blasdale 1899-5 5549 Humboldt Scotia. Comment
  HSC46091  Polystichum imbricans J. P. Smith, Steve Selva 1970-6-14 3814 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC47991  Polystichum imbricans Brad Klipfel 1974-6-17 681 Humboldt Horse Mtn. Comment
  SD92985  Polystichum imbricans subsp. imbricans W. Bertsch 1953-7-29 215 Humboldt near Weott, Highway 101 60 Comment
  HSC40256  Polystichum munitum Linda M. Barker 1976-4-30 1414 Humboldt 3 mi. W of Arcata Comment
  RSA46706  Polystichum munitum Doris K. Kildale 1929-3-10 6944 Humboldt Bug Creek Comment
  UC1193410  Polystichum munitum P. Zinke 1950-10-11 187 Humboldt 4 mi se Punta Gorda (Lake Ridge); Quadrangle 28C1 243 Comment
  HSC98514  Polystichum munitum Cara Witte 2008-7-10 857 Humboldt Brays Opening on National Forest 1. 0.5 mi. north of intersection with Forest Service Road 4N38. 1393 Comment
  SEINET4555668 Image available Polystichum munitum Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-6-8 15050 Humboldt Bolling Grove State Park. Comment
  UC1196668  Populus trichocarpa E. Ethel Tracy 1918-4-20 Humboldt Scotia Northern Coast Ranges, on Eel River (on Eel River) 30 Comment
  UC249538  Populus trichocarpa Joseph P. Tracy 1922-10-8 6121 Humboldt Mad River at Blue Lake (Northern Coast Ranges); , Mad River at Blue Lake 30 Comment
  RSA152546  Potamogeton foliosus Joseph P. Tracy 1927-8-7 8308 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  HSC36314  Potamogeton natans L. Preston 1973-5-19 Humboldt 2 mi. W Arcata Comment
  CDA837  Potamogeton nodosus E. C. Whitney 1963-9-2 s.n. Humboldt In lake of Benbow Lake State Park, south of Garberville. 0 Comment
  CAS-BOT-BC143079  Potentilla anserina subsp. pacifica Doris K. Kildale 1926-6-29 2249 a Humboldt Mouth of Mad River Comment
  CAS-BOT-BC143080  Potentilla anserina subsp. pacifica Doris K. Kildale 1926-6-25 2178 Humboldt Big Lagoon Comment
  UC637136  Potentilla anserina subsp. pacifica Annetta Carter 1934-8-17 719 Humboldt 35 mi n Eureka (e shore of Big Lagoon); e shore of Big Laoon, n of Eureka 3 Comment
  HSC102125  Potentilla drummondii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1029 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC98450  Potentilla gracilis John Rehling 1974-7-12 11 .5 Humboldt Near the Bald Hills Rd., 23.5 mi. from Hwy. 101 Comment
  HSC58182  Potentilla gracilis var. fastigiata G. L. Clifton, Griswold 1979-8-2 12270 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC75938  Potentilla gracilis var. fastigiata Overton, Butler 1979-7-24 9703 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  SEINET2474968 Image available Potentilla palustris var. villosa Joseph P. Tracy 1923-6-17 6276 Humboldt Big Lagoon 10 Comment
  HSC97301  Prosartes smithii M. Mesler 2007-5-15 750 Humboldt Bald Hills Rd., 18.8 mi. from Hwy. 101, N side of rd. 915 Comment
  UCR179386  Prunella vulgaris Katherine Esau 1934-5-6 s.n. Humboldt Fort Seward 152 Comment
  HSC22530  Prunella vulgaris subsp. lanceolata Jerry Parker 1968-9-23 68 Humboldt 1/4 mi. S of Vista Point Comment
  HSC59667  Prunella vulgaris subsp. lanceolata George Kirn 1977-10-3 Humboldt Jolly Giant Creek, 1/4 mi. from HSC campus 30 Comment
  UC25637  Prunella vulgaris var. lanceolata J. Burtt Davy 1899-6-11 5443 Humboldt Hubbards; North Coast Ranges, Hubbards Comment
  UCD125323  Prunella vulgaris var. lanceolata K. Esau 1934-5-6 s.n. Humboldt Fort Seward. 152 Comment
  CAS-BOT-BC159977  Prunus emarginata Doris K. Kildale 1927-6-26 3600 Humboldt Big Lagoon Comment
  CAS-BOT-BC154739  Prunus virginiana var. demissa Doris K. Kildale 1926-5-20 3240 Humboldt Bug Creek 792 Comment
  CAS-BOT-BC357607  Pseudognaphalium stramineum Joseph P. Tracy 1937-8-3 15614 Humboldt Along Mad River, near Blue Lake 15 Comment
  HSC40252  Pseudognaphalium stramineum Linda M. Barker 1976-8-24 1685 Humboldt 3 mi. W of Arcata Comment
  JEPS20483  Pseudognaphalium thermale Joseph P. Tracy 1938-8-14 16111 Humboldt Willow Creek Trinity River Valley, Willow Creek Comment
  UC1222889  Pseudognaphalium thermale Joseph P. Tracy 1950-9-22 19376 Humboldt below 8 mi Orleans (near Slate Creek); Klamath River 121 Comment
  UC1173655  Pseudognaphalium thermale Joseph P. Tracy 1939-8-16 16424 Humboldt Friday Ridge Grouse Mountain, Friday Ridge (brushy slopes) 1219 Comment
  CAS-BOT-BC80120  Pseudotsuga menziesii Doris K. Kildale 1926-11-27 2840 Humboldt Alton Hill, old terrace above lower Van Duzen River Comment
  HSC70640  Pseudotsuga menziesii var. menziesii R. York 1980-5-18 593 Humboldt Near Black Mtn. 792 Comment
  HSC55135  Pteridium aquilinum var. pubescens G. L. Clifton, Griswold 1979-8-1 11978 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  RSA152293  Puccinellia nutkaensis Joseph P. Tracy 1950-6-17 18834 Humboldt At Eureka. Comment
  UC577353  Pycnanthemum californicum Joseph P. Tracy 1926-10-7 7809 Humboldt w side South Fork of Trinity River opposite Limestairs; South Fork of Trinity River Comment
  CAS-BOT-BC460605  Pyrola aphylla Doris K. Kildale 1925-6-28 840 Humboldt Laurence Creek 609 Comment
  CAS-BOT-BC462871  Pyrola asarifolia Joseph P. Tracy 1936-6-28 15016 Humboldt Bald Mountain, at Lake Prairie 1066 Comment
  HSC40515  Pyrola asarifolia subsp. asarifolia M. A. Baker 1977-5-14 289 Humboldt Along Patrick's Point Drive 1/2 mi. N of Trinidad 30 Comment
  HSC98084  Pyrola dentata Cara Witte 2007-7-10 474 Humboldt Horse Mountain Botanical Area. Forest service Road 6N36A. 1334 Comment
  HSC72629  Pyrola dentata J. P. Smith 1977-7-3 9254 Humboldt Six Rivers National Forest, along FS Rd. 11N17, above Blue Lake 762 Comment
  HSC55032  Pyrola picta Overton, Butler 1979-7-31 11471 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  BLMAR168  Quercus Donald Hazlett 1994-6-7 168 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UC709464  Quercus X morehus Joseph P. Tracy 1941-6-15 16915 Humboldt Panther Gap; on Bull Creek-Mattole Rd 762 Comment
  CAS-BOT-BC62672  Quercus chrysolepis Doris K. Kildale 1926-8-15 2514 Humboldt Willow Creek Flat 152 Comment
  HSC37825  Quercus chrysolepis Thomas W. Nelson, Jane P. Nelson 1976-2-21 2251 Humboldt Tish-Tang campground Comment
  HSC98518  Quercus chrysolepis Cara Witte 2008-8-6 1013 Humboldt Board Camp Mountain. Road to Tri Board Camp. 1486 Comment
  UC1196528  Quercus chrysolepis Joseph P. Tracy 1926-6-6 7570 Humboldt on road w from Hoopa Valley; Northern Coast Ranges, Hoopa Mountain 914 Comment
  UC1222292  Quercus chrysolepis Joseph P. Tracy 1950-8-4 19256 Humboldt at head of Canoe Creek, summit of ridge ne of the lookout station, Grasshopper Peak, in Bull Creek State Park Bull Creek State Park, Grasshopper Peak, Canoe Creek Comment
  UC275588  Quercus chrysolepis Joseph P. Tracy 1924-8-31 6845 Humboldt Klamath River at Bluff Creek Northern Coast Ranges 91 Comment
  UC54678  Quercus chrysolepis Harley P. Chandler Jun 1901 1435 Humboldt Klamath River North Coast Ranges 304 Comment
  HSC73544  Quercus garryana Gail Newton 1980-7-14 1469 Humboldt Near Last Chance Ridge. 1219 Comment
  UC502988  Quercus kelloggii Joseph P. Tracy 1928-9-30 8510 Humboldt near Bridgeville; Northern Coast Ranges 304 Comment
  UCR32153  Quercus kelloggii David J. Keil 1983-7-1 17274 Humboldt North Coast Range, Bull Creek Flats [Mattole] Road, c. 13 mi. west of junction with US Hwy 101 Comment
  JEPS49020  Quercus sadleriana Hilda W. Grinnell 1932-7-9 4 Humboldt above Kerlin Creek; South Fork Mt. 1524 Comment
  UC213004  Quercus sadleriana Joseph P. Tracy 1919-9-19 5259 Humboldt Trinity Summit Northern Coast Ranges 1676 Comment
  HSC54519  Quercus vacciniifolia Overton, Butler 1979-7-23 9446 Humboldt Near Horse Mtn. Mine, close to the town of Willow Creek 1295 Comment
  UC1196264  Ranunculus J. P. Tracy 1902-8-10 1766 Humboldt R. R. Station Immediate vicinity of Eureka 0 Comment
  UC594250  Ranunculus aquatilis var. hispidulus C. C. and S. K. Harris 1936-6-12 3363 Humboldt near Bridgeville; Chalk Mountain Comment
  UC118293  Ranunculus aquatilis var. hispidulus W. W. Price 1890-6-30 Humboldt Jarnigans Comment
  UC184716  Ranunculus aquatilis var. hispidulus Joseph P. Tracy 1913-6-23 4276 Humboldt near summit of ridge between Van Duzen River and Mad River (in shallow but permanent pond); Northern Coast Ranges, Dinsmore's Ranch 1066 Comment
  UC503024  Ranunculus californicus Joseph P. Tracy 1932-5-10 9965 Humboldt Mattole River North Coast Region, Mattole River 15 Comment
  POM269618  Ranunculus flammula var. ovalis Joseph P. Tracy 1934-7-30 13499 Humboldt Dry Lagoon (Along coast in front of South End of Stone Lagoon.) 3 Comment
  HSC71056  Ranunculus occidentalis Thomas W. Nelson, Jane P. Nelson 1977-5-30 3390 Humboldt McKeown Ranch. Along road to Anderson's Ford. 854 Comment
  UC1196223  Ranunculus occidentalis Joseph P. Tracy 1918-5-28 4948 Humboldt Bald Mountain Northern Coast Ranges (High Prairie) 1066 Comment
  UC503037  Ranunculus occidentalis Joseph P. Tracy 1929-7-4 8608 Humboldt French Camp Ridge Northern Coast Ranges 1066 Comment
  UC1196224  Ranunculus occidentalis Joseph P. Tracy 1920-5-18 5327 Humboldt 5 mi above Dyerville; Northern Coast Ranges, South Fork Eel River, Forest Lodge 60 Comment
  HSC39445  Ranunculus repens var. repens Linda M. Barker 1976-6-1 1555 Humboldt 3 mi. W of Arcata Comment
  HSC18175  Ranunculus repens var. repens E. Hunt 1949-3-9 13 Humboldt Elk River Comment
  HSC36226  Ranunculus repens var. repens John Rehling 1975-4-21 51 Humboldt Along Jolly Giant Creek E of HSU campus Comment
  HSC18194  Ranunculus uncinatus var. parviflorus W. F. Nickel 1965-5-15 Humboldt 0.5 mi. E of Arcata on rd. to Arcata Reservoir Comment
  RSA7790  Rhamnus californica Carl B. Wolf 1927-8-30 1249 Humboldt 3 miles S of Thorn3 miles S of Tom's Place Comment
  UC61090  Rhamnus californica subsp. californica Mrs. M. H. Manning oct 1901 Humboldt near Hupa Comment
  UC709447  Rhamnus californica subsp. occidentalis Joseph P. Tracy 1941-9-4 17012 Humboldt along Trinity Highway Willow Creek Canyon 609 Comment
  UC1197995  Rhamnus crocea Jessie Cox and Laura Cuddeback 1941-10-5 Humboldt McClellan Rock Larribee Valley 762 Comment
  JEPS41952  Rhamnus purshiana W. L. Jepson 1902-7-15 2032 Humboldt Mud Spring to Trinity Summit 1219 Comment
  RSA13280  Rhamnus purshiana Doris K. Kildale 1928-7-1 5304 Humboldt French camp on Orick-Martins ferry road 610 Comment
  RSA390632  Rhamnus purshiana Christopher Davidson 1973-5-29 2203 Humboldt 2 miles S of Carlotta on Hwy 36 61 Comment
  UC18569  Rhamnus purshiana Harley P. Chandler May 1901 1173 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  CAS-BOT-BC58193  Rhododendron columbianum Doris K. Kildale 1926-2-7 1500 Humboldt Big Lagoon. Comment
  HSC31567  Rhododendron macrophyllum Glenn McGourty 1974-5-11 37 Humboldt Timber trail off Maple Creek Rd. in Kneeland Comment
  RSA254755  Rhododendron macrophyllum Thomas W. Nelson 1974-5-7 1239 Humboldt Beside the old Kneeland Rd. Comment
  RSA471003  Rhododendron macrophyllum E. S. Spalding 1925-04 s.n. Humboldt Arcata. Comment
  UC1197789  Rhododendron occidentale J. P. Tracy 1901-6-23 1165 Humboldt immediate vicinity of Eurek 0 Comment
  UC1197790  Rhododendron occidentale Joseph P. Tracy 1913-9-9 4402 Humboldt at Big Lagoon Big Lagoon; Northern Coast Ranges, Big Lagoon 30 Comment
  CAS-BOT-BC433137  Ribes L. B. Kildale 1930-8-3 10490 Humboldt Chaparral Mt. at Bug Creek Comment
  CAS-BOT-BC92884  Ribes bracteosum Greg de Nevers 2001-4-19 12258 Humboldt Prairie Creek, Redwoods State Park. 91 Comment
  UC70553  Ribes bracteosum J. Burtt Davy 1899-6-13 5504 Humboldt near Camp Grant; North Coast Ranges, Eel River Comment
  CAS-BOT-BC168853  Ribes inerme var. klamathense Joseph P. Tracy 1937-4-3 15243 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  JEPS49366  Ribes lacustre P. E. Goddard 1901-7 125 Humboldt Trinity Summit Trail Comment
  CAS-BOT-BC173359  Ribes lobbii Peter H. Raven; R. Snow 1958-7-20 11632 Humboldt 12.8 miles south-west of United States 299 on Friday Ridge Road to Grouse Mountain, 0.2 miles north-east of Titlow Hill road junction Comment
  JEPS49355  Ribes lobbii W. L. Jepson 1902-7-16 2044 Humboldt Trinity Summit 2133 Comment
  HSC58085  Ribes marshallii G. L. Clifton, Griswold 1979-8-1 11991 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  CAS-BOT-BC206033  Ribes menziesii E. R. Johnson 1929-8-1 11211 Humboldt Arcata, Redwood Park Comment
  CAS-BOT-BC206034  Ribes menziesii Alice Eastwood 1907-4-21 13 Humboldt Port Trinidad Comment
  HSC100493  Ribes menziesii Carl C. Marshall Apr 1886 134 Humboldt Everywhere about the bay. Comment
  UC902058  Ribes roezlii Joseph P. Tracy 1942-3-8 17067 Humboldt Miranda South Fork of Eel River 121 Comment
  JEPS49188  Ribes roezlii var. amictum Joseph P. Tracy 1923-3-17 6159 Humboldt Garberville 121 Comment
  HSC20320  Ribes roezlii var. cruentum D. E. Anderson 1962-5-1 2203 Humboldt 1 mi. W of Hoopa Comment
  SEINET3121271 Image available Ribes roezlii var. cruentum Joseph P. Tracy 1944-7-3 17481 Humboldt Trinity River Valley; Willow Creek 152 Comment
  UC1039819  Ribes sanguineum J. I. Mallory 1956-4-27 126 Humboldt 1.5 mi w Petrolia (at head of Jeffrey Gulch, Humboldt base and Mer.); Quad. 28-B4 167 Comment
  CAS-BOT-BC144696  Ribes sanguineum var. glutinosum Doris K. Kildale 1927-5-13 3137 Humboldt Redwood Creek at Berry's 289 Comment
  UC154078  Ribes sanguineum var. glutinosum J. P. Tracy 1905-3-5 2148 Humboldt immediate vicinity Eureka 0 Comment
  UC902086 Image available Ribes sanguineum var. glutinosum Joseph P. Tracy 1949-4-10 18281 Humboldt North Coast Ranges, Redwood Creek, at Berry's Redwood Creek; North Coast Ranges, Redwood Creek 365 Comment
  SEINET2153800  Ribes sanguineum var. sanguineum K. T. Harper 2002-1 2002 -4 Humboldt Redwood Park, near Orick. Comment
  HSC103209  Ribes viscosissimum Jade Paget-Seekins 2010-6-30 32 Humboldt Grouse Mountain on Forest Route 1 at the fork with Grouse Mountain Road. 1578 Comment
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Mar 8 2016
  UC902089 Image available Ribes viscosissimum Joseph P. Tracy 1942-6-23 17239 Humboldt near Box Camp; Trinity Summit 1524 Comment
  HSC13750  Romanzoffia californica Doris K. Kildale 1926-3-21 1574 Humboldt Kneeland Prairie Comment
  HSC32315  Rorippa curvisiliqua D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5657 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  UC14385  Rorippa nasturtium-aquaticum Chestnut and Drew 1888-7-8 Humboldt Arcata Comment
  UC667029  Rosa Joseph P. Tracy 1936-8-24 15179 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  CAS-BOT-BC147433  Rosa californica Ira L. Wiggins 1940-7-10 9488 Humboldt Table Bluff Comment
  CAS-BOT-BC147434  Rosa californica Doris Kildale 1931-6-6 10869 Humboldt Gans Prairie, Orick - Weitchpec Road Comment
  BLMAR535  Rosa gymnocarpa Jennifer Wheeler 2009-6-23 535 Humboldt King range, On Paradise Ridge road Comment
  CAS-BOT-BC146481  Rosa gymnocarpa Alice Eastwood; John Thomas Howell 1937-6-22 4715 Humboldt Near Harris Comment
  POM232034  Rosa gymnocarpa I. L. Wiggins 1930-7-22 4695 Humboldt Along bank of Redwood Creek btwn Blue Lake and Willow Creek. Comment
  HSC98852  Rosa gymnocarpa var. serpentina Cara Witte 2008-6-18 748 Humboldt Horse Mountain Botanical Area. Approximately 1 mile east of junction 6N36 and 6N36A. 1394 Comment
  CAS-BOT-BC146825  Rosa nutkana Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  JEPS45699  Rosa pisocarpa Joseph P. Tracy 1923-9-16 6550 Humboldt near the South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC19673  Rubus armeniacus M. L. Stuart 1965-4-18 6 Humboldt Fern Lake Dam Comment
  BLMAR469  Rubus leucodermis Jennifer Anthony-Wheeler 2004-11-8 469 Humboldt Titlow Hill, growing along Titlow Hill road off Hwy 300 914 Comment
  HSC71715  Rubus leucodermis M. A. Baker 1980-6-26 2436 Humboldt Near Sims Creek 610 Comment
  HSC19652  Rubus macropetalus P. Markle 1962-5-22 60 Humboldt Along cross country track behind HSU in Arcata Community Forest Comment
  CAS-BOT-BC147248  Rubus parviflorus Mrs. A. H. Rodda 1932-5-22 s.n. Humboldt Redwood Highway Comment
  HSC19666  Rubus parviflorus R. A. Rasp 1964-5-20 47 Humboldt HSU campus, beside Jolly Giant Creek. Comment
  HSC19669  Rubus parviflorus Francis Winter 1960-4-24 Humboldt 2 mi. S of Hoopa Indian Reservation along Hoopa-Willow Creek Hwy. 152 Comment
  HSC56189  Rubus parviflorus Gilbert Muth 1979-8-1 12126 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UCR32042  Rubus parviflorus David J. Keil 1983-7-1 17292 Humboldt Between Ferndale & Bear River Ridge Road along Mattole Road Comment
  UCR3512  Rubus parviflorus David Whistler, H. M. Whistler 1964-8-1 640801- 5 Humboldt Coast Range, US Hwy 299, 6 mi east of Blue Lake Comment
  UCSB30625  Rubus parviflorus Edwards, David 1974-8-14 Humboldt S. side of dirt road, ca 1/2 - 3/4 mi in on dirt road from jct. with Fickle Hill Rd, ca 1/4 mi E of junction of Fickle Hill Rd and Park Av. Arcata Comment
  POM117571  Rubus parviflorus var. velutinus Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  CAS-BOT-BC156727  Rubus spectabilis David D. Keck; J. Clausen 1935-6-16 3394 Humboldt Mouth of Little River, at roadside Comment
  BLMAR182  Rubus ursinus Donald Hazlett 1994-6-7 182 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC19697  Rubus ursinus John A. Dubois 1962-5-23 21 Humboldt 20 mi. E of Arcata. Comment
  HSC63031  Rubus ursinus J. P. Smith, J. O. Sawyer 1973-5-12 6704 Humboldt 10.4 mi. from Redwood Creek on Hoopa Rd. Comment
  UCD17838  Rubus ursinus H. Olmo 8-10 May 1962 62- 35 Humboldt California. Humboldt County: along Route 36 between Grizzly Creek Redwoods State Park and Dinsmore. 670 Comment
  HSC99000  Rubus ursinus subsp. ursinus Cara Witte 2008-7-16 906 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  UC1199269  Rudbeckia occidentalis Joseph P. Tracy 1932-7-20 10727 Humboldt at Corral Prairie; Trinity Summit 1584 Comment
  HSC55036  Rumex acetosella Gilbert Muth 1979-7-31 11488 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Gasquet 1417 Comment
  HSC39614  Rumex acetosella Thomas W. Nelson, Jane P. Nelson 1976-6-15 2718 Humboldt Along old trail from lookout to Blocksburg 1585 Comment
  CAS-BOT-BC421523  Rumex crassus C. L. Hitchcock; J. S. Martin 1939-7-14 5438 Humboldt At Shelter Cove Comment
  CAS-BOT-BC421524  Rumex crassus Doris K. Kildale 1926-8-12 2481 Humboldt Moonstone Beach near Trinidad Comment
  CHSC23320  Rumex fueginus Robert F. Thorne; P. Everett 1965-8-9 35329 Humboldt Clam Beach County Park; along highway in shallow water of ditch. 3 Comment
  SD50776  Rumex obtusifolius Darley F. Howe 1959-8-4 2804 Humboldt 86 miles west of Weaverville on #299 152 Comment
  SEINET11946618  Rumex obtusifolius C. S. Kaut 2000-1 6 Humboldt Trinidad Comment
  UC1197458  Rupertia physodes Joseph P. Tracy 1929-7-4 8630 Humboldt French Camp Ridge Northern Coast Ranges 1066 Comment
  BLMAR466  Salicornia depressa Jennifer Anthony-Wheeler 2007-8-28 466 Humboldt South Spit 6 Comment
  HSC95580  Salicornia depressa Andrea Pickart 2002-7-19 180 Humboldt Arcata Marsh at end of I St. 0 Comment
  CAS-BOT-BC132666  Salix A. T. Whittemore 1980-3-15 80 -007 Humboldt Arcata, in residential area, along Alliance Road from Foster Ave. to the railroad tracks Comment
  CAS-BOT-BC129887  Salix bonplandiana Mrs. H. P. Bracelin 1931-5-1 270 Humboldt Sylvandale, between Miranda and Meyers, South Fork of Eel River Comment
  CAS-BOT-BC129900  Salix bonplandiana Doris K. Kildale 1926-4-1 1700 Humboldt Dobbyn's Creek Comment
  CAS-BOT-BC103807  Salix exigua W. R. Dudley 1899-6-21 s.n. Humboldt near bluff below junction of North and South Forks of Eel River Comment
  CAS-BOT-BC103823  Salix exigua Harold E. Parks 1931-5-14 0964 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  CAS-BOT-BC103824  Salix exigua L. R. Abrams; R. Bacigalupi 1922-6-25 8227 Humboldt 6 miles north of Garberville Comment
  UC1196605  Salix exigua var. hindsiana Joseph P. Tracy, C. R. Ball, and H. E. Parks 1932-5-17 10096 Humboldt Trinity R. opposite Willow Creek; North Coast Ranges 152 Comment
  UC481299  Salix exigua var. hindsiana Harold E. Parks and Joseph P. Tracy 1931-5-17 968 Humboldt mouth of Willow Creek at Trinity R. 150 Comment
  UC490565  Salix exigua var. hindsiana Joseph P. Tracy 1932-7-31 10288 Humboldt along Eel River from S. Fork to Scotia (mouth of Larrabee Creek); Northern Coast Ranges 60 Comment
  CAS-BOT-BC104098  Salix hindsiana Harold E. Parks; Joseph P. Tracy 1931-5-17 0975 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC104102  Salix hindsiana Harold E. Parks 1931-8-25 01061 Humboldt Blue Slide, Van Duzen River 90 Comment
  CAS-BOT-BC104109  Salix hindsiana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01248 Humboldt floodplain of Eel River at Fernbridge Comment
  CAS-BOT-BC107749  Salix hookeriana Harold E. Parks 1931-5-12 953 Humboldt Samoa, Humboldt Bay Comment
  CAS-BOT-BC107760  Salix hookeriana Harold E. Parks 1931-5-28 0999 Humboldt Little River Lagoon Comment
  CAS-BOT-BC107766  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1210 b Humboldt Little River Lagoon, 4 1/2 miles south of Trinidad Comment
  HSC6821  Salix hookeriana H. E. Parks 1931-3-24 912 Humboldt Along lower Eel River, near Fortuna Comment
  POM161065  Salix hookeriana Joseph P. Tracy 1925-4-5 6952 Humboldt Near Laren Frost place on Kneeland Road. near Kneeland Prairie. 610 Comment
  SBBG59105  Salix hookeriana H. E. Parks 1931-5-12 952 Humboldt Samoa, Humboldt Bay Comment
  UC1173588  Salix hookeriana Joseph P. Tracy 1937-7-27 15508 Humboldt Lindsay Creek Mad River (mouth) 15 Comment
  UC1196546  Salix hookeriana Joseph P. Tracy 1926-3-14 7390 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  UC1196547  Salix hookeriana Joseph P. Tracy 1926-2-21 7360 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R. 91 Comment
  UC1196549  Salix hookeriana Joseph P. Tracy 1943-11-28 17453 Humboldt Alton to Fortuna (Eel R.); Eel R. 15 Comment
  UC212999  Salix hookeriana Joseph P. Tracy 1920-2-29 5309 Humboldt Ryans Slough Northern Coast Ranges, around Humboldt Bay 15 Comment
  UC470430  Salix hookeriana Joseph P. Tracy 1931-5-23 9435 Humboldt near Trinidad Station; Northern Coast Region, vicinity of Trinidad 60 Comment
  UC481352  Salix hookeriana Harold E. Parks 1931-5-12 955 Humboldt Samoa Humboldt Bay, Samoa Comment
  UC481388  Salix hookeriana Harold E. Parks 1931-3-24 915 Humboldt Trinidad 90 Comment
  UC481397  Salix hookeriana Harold E. Parks 1931-3-24 914 Humboldt Fortuna Eel River (banks of river) 10 Comment
  UC504062  Salix hookeriana Jim Davis Apr 25 1933-Apr 27 1933 8 Humboldt Samoa Comment
  UC506346  Salix hookeriana Joseph P. Tracy 1933-3-19 10925 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R. 91 Comment
  UC506505  Salix hookeriana Joseph P. Tracy 1932-8-27 10753 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  UC512001  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1236 Humboldt Blue Slide Van Duzen River 91 Comment
  UC512095  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1214 Humboldt 1 mi n Samoa (in pine barrens near the coast) Comment
  UCD111030  Salix hookeriana Linda M. Barker 1976-3-22 1340 Humboldt 3 miles west of Arcata. Comment
  UC490521  Salix laevigata Joseph P. Tracy 1932-4-23 9834 Humboldt 4 mi. s. Dyerville (S. Fork Eel R.); Northern Coast Ranges, S. Fork Eel R. 60 Comment
  UC1196586  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1929-10-20 8682 Humboldt Larrabee Valley Northern Coast Ranges, Larrabee Valley 701 Comment
  UC1196587  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1927-11-13 8394 Humboldt near mouth Little R.; Northern Coast Ranges, Little R. 6 Comment
  UC1196589  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1932-4-17 9794 Humboldt Alton to Fortuna (Eel R.); Northern Coast Region, Eel R. 15 Comment
  UC1196590  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1919-9-14 5205 Humboldt near Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC481296  Salix lasiandra subsp. lasiandra Harold E. Parks and Joseph P. Tracy 1931-5-17 966 Humboldt mouth of Willow Creek at Trinity R. (banks of Willow Creek); Willow Creek 150 Comment
  UC492331  Salix lasiandra subsp. lasiandra Harold E. and Susan T. Parks 1932-4-10 1101 Humboldt Little River Lagoon Trinidad; , Little River Lagoon Comment
  UC504056  Salix lasiandra subsp. lasiandra Jim Davis Apr 25 1933-Apr 27 1933 3 Humboldt around Eureka Eureka Comment
  RSA0038347  Salix lasiandra var. lancifolia Harold E. Parks 1931-5-14 0959 Humboldt Van Duzen River between Alton and Carlotta. 15 Comment
  CAS-BOT-BC107623  Salix lasiolepis Joseph P. Tracy 1934-4-8 13171 Humboldt South Fork of Eel River, between Miranda and Redway 91 Comment
  HSC20009  Salix lasiolepis J. P. Tracy 1932-10-8 10867 Humboldt Berry Mt. on Trinity Hwy. 762 Comment
  HSC98056  Salix lasiolepis Cara Witte 2007-7-2 395 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1392 Comment
  JEPS12916  Salix lasiolepis Joseph P. Tracy 1927-5-13 7996 Humboldt Redwood Creek at Berry's; Northern Coast Ranges 274 Comment
  JEPS14764  Salix lasiolepis Joseph P. Tracy 1932-8-27 10753 Humboldt on Van Duzen River Blue Slide; Northern Coast Ranges 91 Comment
  UC1173596  Salix lasiolepis Joseph P. Tracy 1936-10-17 15200 Humboldt Blue Slide, on Van Duzen River 91 Comment
  UC1196620  Salix lasiolepis Joseph P. Tracy 1926-9-19 7803 Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  UC1196628  Salix lasiolepis Joseph P. Tracy 1937-4-11 15260 Humboldt Camp Grant Eel River (along river, 2-5 mi e of the South Fork) 45 Comment
  UC490471  Salix lasiolepis Joseph P. Tracy 1932-9-5 10770 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC492345  Salix lasiolepis Harold E. and Susan T. Parks 1932-4-12 1112 Humboldt on Van Duzen R. Blue Slide; Van Duzen R., Blue Slide 90 Comment
  UC506375  Salix lasiolepis Joseph P. Tracy 1933-4-9 10963 Humboldt Bridgeville 228 Comment
  UC506394  Salix lasiolepis Joseph P. Tracy 1932-6-19 10244 Humboldt Buck Mountain Northern Coast Ranges (lower foothills of nw slope, in gully) 762 Comment
  UC506398  Salix lasiolepis Joseph P. Tracy 1933-4-9 10968 Humboldt Bridgeville Northern Coast Ranges, Van Duzen River (along river) 228 Comment
  UC511990  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1241 Humboldt Blue Slide Van Duzen River 91 Comment
  UC512040  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1322 Humboldt at Berry's Redwood Creek (on Trinity Hwy.) 274 Comment
  UC519332  Salix lasiolepis Joseph P. Tracy 1933-10-15 13094 Humboldt near Miranda South Fork of Eel River 121 Comment
  UC519339  Salix lasiolepis Joseph P. Tracy 1933-5-14 12177 Humboldt Willow Creek Trinity River Valley (mouth) 152 Comment
  UC526714  Salix lasiolepis Joseph P. Tracy 1934-3-4 13142 Humboldt Miranda, South Fork of Eel River 121 Comment
  UC526718  Salix lasiolepis Joseph P. Tracy 1934-7-9 13355 Humboldt Dobbyn Creek Northern Coast Ranges, Dobbyn Creek 152 Comment
  CAS-BOT-BC107292  Salix lasiolepis var. bigelovii Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01241 Humboldt floodplain of Van Duzen River at Blue Slide 91 Comment
  CAS-BOT-BC107301  Salix lasiolepis var. bigelovii Doris K. Kildale 1926-8-8 2477 Humboldt South Fork of Eel River near Dyerville bridge 51 Comment
  CAS-BOT-BC125622  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 283 Humboldt East of Redwood Highway, 6 km. south of Alton 20 Comment
  CAS-BOT-BC125629  Salix melanopsis Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-13 01252 Humboldt On floodplain of Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  SBBG57930  Salix melanopsis H. E. Parks, J. P. Tracy 1931-5-17 972 Humboldt mouth of Willow Crk at Trinity River 150 Comment
  UC469460  Salix melanopsis Joseph P. Tracy 1931-10-18 9740 Humboldt on Eel R. Camp Grant; Northern Coast Ranges, Eel R., Camp Grant 60 Comment
  UC481267  Salix melanopsis Harold E. Parks 1931-5-28 1025 Humboldt Little River Lagoon Comment
  UC481384  Salix melanopsis Harold E. Parks 1931-3-26 909 Humboldt on Van Duzen R. Alton; Van Duzen R. 15 Comment
  UC490555  Salix melanopsis C. R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 10073 Humboldt Redwood Creek at Berrys; North Coast Ranges, Redwood Creek 274 Comment
  UC511972  Salix melanopsis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-13 1252 Humboldt Mad River at Engelhart gravel pit (2 mi. e. of Redwood Hwy. and above Blue Lake Rd.) Comment
  UC55408  Salix melanopsis Harley P. Chandler June, 1901 1519 Humboldt North Coast Ranges, Klamath R. 426 Comment
  RSA0034666  Salix melanopsis var. bolanderiana H. P. Bracelin 1931-5-2 283 Humboldt East of Redwood Highway, 6 km. south of Alton. 20 Comment
  CAS-BOT-BC129210  Salix piperi Doris K. Kildale 1929-2-28 6951 Humboldt Mad River at Essex Comment
  CAS-BOT-BC129138  Salix scouleriana Joseph P. Tracy 1932-7-13 10507 Humboldt Open ground at Corral Prairie - Trinity Summit, Klamath Mountains 1524 Comment
  CAS-BOT-BC129140  Salix scouleriana H. E. Parks 1933-1-24 1352 Humboldt Spruce Cove (Parks Ranch), Trinidad Comment
  CAS-BOT-BC129169  Salix scouleriana Joseph P. Tracy 1932-7-17 10694 Humboldt Rocky exposed places, head of Devil's Hole - Trinity Summit, Klamath Mountains 1828 Comment
  POM280933  Salix scouleriana Lyman D. Benson 1929-7-14 1810 Humboldt Weott Ranger Station, South Fork Eel River. Comment
  UC1173626  Salix scouleriana Joseph P. Tracy 1937-3-21 15237 Humboldt Van Duzen R. at Grizzly Creek; Van Duzen R. 91 Comment
  UC1196698  Salix scouleriana Joseph P. Tracy 1921-1-15 5412 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  UC481359  Salix scouleriana Harold E. Parks 1931-5-14 957 Humboldt Van Duzen R. <at> Little Larabee Bridge; Van Duzen R. 450 Comment
  UC506349  Salix scouleriana Joseph P. Tracy 1933-4-2 10958 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 609 Comment
  UC55955  Salix scouleriana J. P. Tracy 1900-8-5 922 Humboldt immediate vicinity Eureka 0 Comment
  HSC20105  Salix sitchensis H. E. Parks 1931-3-24 910 Humboldt Trinidad Comment
  JEPS14763  Salix sitchensis Joseph P. Tracy 1932-8-27 10745 Humboldt on Van Duzen River Blue Slide; Northern Coast Ranges 91 Comment
  POM219562  Salix sitchensis H. E. Parks 1931-3-25 903 Humboldt Orick. Van Duzen River. 6 Comment
  UC212996  Salix sitchensis Joseph P. Tracy 1919-9-25 5300 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  JEPS12742  Sambucus mexicana Joseph P. Tracy 1930-7-19 9088 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  JEPS26115  Sambucus mexicana Peter H. Raven with R. Snow 1958-7-20 13643 Humboldt on Titlow Hill Rd 1.1 mi s junction of Friday Ridge Road (near Grouse Ridge) Comment
  HSC59562  Sambucus racemosa var. racemosa Rick Lundquist 1979-4-6 3 Humboldt Arcata, SE Corner of 7th and Union St. 24 Comment
  UC602561  Sambucus racemosa var. racemosa Joseph P. Tracy 1932-7-14 10570 Humboldt ridges e Corral Prairie; Trinity Summit 1676 Comment
  UCSB15630  Sambucus racemosa var. racemosa 1962-6-8 Humboldt Along U.S. Highway 101, 5 miles south of Orick 30 Comment
  UCSB22664  Sambucus racemosa var. racemosa Jensen, Karen 1965-4-14 Humboldt Along Tompkin's Hill Rd., 2.7 mi. from Hwy. 101 turnoff, northeast of Fortuna 91 Comment
  HSC37578  Sanicula arctopoides J. D. Ackerman 1975-6-10 448 Humboldt 1 mi. N of Samoa Bridge turnoff from Samoa Blvd., S of Manila Comment
  UC1197110  Sanicula bipinnatifida Joseph P. Tracy 1928-6-24 8461 Humboldt Valley of South Yager Creek 762 Comment
  UC183563  Sanicula bipinnatifida Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3606 Humboldt near Hydesville (Northern Coast Region); Northern Coast Region 30 Comment
  UC1022528  Sanicula crassicaulis C. Ritchie Bell 1952-5-14 3 X456 Humboldt Patrick Point State Park Comment
  HSC55755  Sanicula graveolens G. L. Clifton, Terry Griswold 1979-7-26 10289 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC55291  Sanicula tuberosa Terry Griswold, Butler 1979-7-10 6264 Humboldt Near Board Camp Mountain 1372 Comment
  HSC71059  Sanicula tuberosa Thomas W. Nelson, Jane P. Nelson 1977-5-30 3393 Humboldt McKeown Ranch. Along road to Anderson's Ford. 854 Comment
  HSC73669  Sanicula tuberosa M. A. Baker 1980-7-15 2957 Humboldt Near Whiting Ridge. 1341 Comment
  UC668103  Saponaria officinalis Joseph P. Tracy 1929-7-21 8644 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  SD42363  Saxifraga mertensiana Carl B. Wolf 1941-3-2 9991 Humboldt N. Coast Range. 2 mi. s. of Honeydew along Honeydew Creek 152 Comment
  JEPS47545  Saxifraga oregana Joseph P. Tracy 1932-7-14 10566 Humboldt Trinity Summit, at Corral Prairie Trinity Summit; Klamath Mountains, , Corral Prairie 1524 Comment
  UC642323  Scandix pecten-veneris Joseph P. Tracy 1935-5-25 13872 Humboldt Fort Seward 106 Comment
  RSA246889  Schoenoplectus acutus var. occidentalis Robert F. Thorne, Percy C. Everett 1965-8-9 35283 Humboldt Big Lagoon. 3 Comment
  HSC90687  Schoenoplectus americanus Gail Newton 1982-5-31 3562 Humboldt Elk River Wildlife Area, Eureka Comment
  HSC90765  Schoenoplectus americanus Gail Newton 1982-6-10 3598 Humboldt Elk River Wildlife Area, Eureka Comment
  HSC7445  Schoenoplectus americanus J. W. Johnson 1962-4-18 1271 Humboldt Between the Mad River mouth and the Hunt Farm, Samoa Peninsula Comment
  UC198641  Scirpus cernuus Joseph P. Tracy 1917-6-10 4821 Humboldt at Eureka; Northern Coast Region, at Eureka 0 Comment
  CDA39124  Scirpus maritimus Gordon Leppig 1999-10-25 1268 Humboldt State Hwy 101, mile marker 61.40 Comment
  SBBG88776  Scirpus microcarpus A. Keedy 1988-9-28 14 Humboldt Alder Grove Rd near Hwy 299, N of Arcata Comment
  HSC7273  Scirpus microcarpus R. S. White 1965-5-18 87 Humboldt 0.5 mi. off Hwy. 101 on road to Crannel Comment
  UC249514  Scoliopus bigelovii Joseph P. Tracy 1922-5-14 6049 Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC517416  Scoliopus bigelovii Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  UCD18586  Scoliopus bigelovii Roman Gankin 1956-3-17 104 Humboldt off US Hwy 101, south boundary of Jenson Grove, near creek. Comment
  RSA246671  Scrophularia californica var. californica Robert F. Thorne, Percy C. Everett 1965-8-9 35314 Humboldt Clam Beach County Park. 3 Comment
  HSC56459  Scutellaria antirrhinoides Griswold, Butler 1979-7-12 7236 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC98088  Scutellaria antirrhinoides Cara Witte 2007-7-11 481 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1391 Comment
  HSC70891  Sedum laxum subsp. heckneri Gail Newton 1980-7-23 1707 Humboldt Near Packsaddle Ridge 1463 Comment
  HSC57458  Sedum obtusatum subsp. retusum G. L. Clifton, Griswold 1979-7-26 10290 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC57880  Sedum obtusatum subsp. retusum Overton, Butler 1979-7-31 11418 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC58050  Sedum obtusatum subsp. retusum G. L. Clifton, Griswold 1979-8-1 11911 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC98735  Sedum radiatum Cara Witte 2007-7-20 552 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1502 Comment
  UC302107  Sedum radiatum Joseph P. Tracy 1926-7-5 7726 Humboldt Valley of South Yager Creek Northern Coast Ranges, Valley South Yager Creek 762 Comment
  UC205171  Sedum spathulifolium Harley P. Chandler June, 1901 1379 b Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 152 Comment
  JEPS25686  Sedum spathulifolium P. C. Hutchison 1961-5-22 2012 Humboldt 1.1 mi s Berry Summit (on hiway US 299, on the road to Horse Mountain); s of Berry Summit, road to Horse Mountain Comment
  RSA0081473  Sedum spathulifolium C. B. Wolf 1927-8-28 1163 Humboldt 8 miles above Weitchpec, Trinity River. Comment
  UC1198844  Sedum spathulifolium Joseph P. Tracy 1944-8-13 17490 Humboldt along Trinity Highway Willow Creek Canyon (rock bluffs at Romanzoffia Creek); Romanzoffia Creek, Willow Creek Canyon 365 Comment
  CAS-BOT-BC59120  Sedum spathulifolium subsp. pruinosum Alice Eastwood 1907-4-22 38 Humboldt Port Trinidad Comment
  HSC6480  Sedum spathulifolium var. spathulifolium William J. Ferlatte, B. D. Rogers 1966-6-15 2103 Humboldt Larabee Valley 762 Comment
  HSC95768  Selaginella kraussiana Gordon Leppig 2000-4-12 1290 Humboldt Arcata: behind Humboldt State University, at base of stump near Fern Lake spillway 49 Comment
  SBBG19224  Selaginella oregana L. L. Kiefer 1963-8-6 769 Humboldt Patrick's Pt St Park, N side of Lookout Rock 45 Comment
  CAS-BOT-BC62182  Selaginella oregana Mrs. A. W. Kildale 1925-1-26 s.n. Humboldt Hungry Hollows, 5-6 mi east of Korbel Comment
  HSC99136  Selaginella wallacei C. Witte 2008-10-18 1063 Humboldt Horse Mountain Botanical Area. Approxmiately 1 mile north of Horse Mountain Communication Towers. Forest Service Road 6N66 1456 Comment
  CDA8589  Senecio bolanderi E. C. Whitney 1970-6-25 Humboldt Mountain View. 0 Comment
  UC1223022  Senecio glomeratus Joseph P. Tracy 1950-9-10 19360 Humboldt 1 mi n Capetown; Bear River Ridge 304 Comment
  UC1239503  Senecio glomeratus Joseph P. Tracy 1938-6-7 15856 Humboldt 5 mi se Korbel; Canyon Creek 152 Comment
  HSC26637  Senecio integerrimus Thomas W. Nelson 1971-5-31 458 Humboldt 915 Comment
  HSC56348  Senecio integerrimus var. major Griswold, Butler 1979-7-10 6259 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC56367  Senecio integerrimus var. major Griswold, Butler 1979-7-10 6252 Humboldt Near Board Camp Mountain, close to the town of Willow Creek 1494 Comment
  HSC98958  Senecio integerrimus var. major Cara Witte 2008-7-28 950 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1/2 mile from intersection with National Forest 1. 1565 Comment
  HSC102100  Senecio triangularis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1003 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 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
  CAS-BOT-BC364331  Senecio triangularis Doris K. Kildale 1925-8-16 1172 Humboldt Trinity Summit - Elk Horn Prairie 1524 Comment
  RSA0013853  Senecio vulgaris R. F. Thorne, Percy C. Everett 1965-8-8 35257 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  CAS-BOT-BC85839  Sequoia sempervirens Rudolf W. Becking 1968-11-27 s.n. Humboldt Weott, Humboldt Redwoods State Park, Federation Grove. Comment
  HSC13034  Sequoia sempervirens T. C. DeCew 1970-11-14 44 Humboldt HSU Campus Comment
  JEPS48277  Sequoia sempervirens Harry McGinite 1932-1 Humboldt Eureka Comment
  JEPS48279  Sequoia sempervirens Lincoln Constance 1934-6-4 822 Humboldt road to Dyerville (Look Prairie and Bull Cr.); Bull Creek region, South Fork Eel River Comment
  MACF017376  Sequoia sempervirens Trudy R. Ericson 1974-8-6 202 Humboldt Off U. S. 101, exit to Patrick's Point State Beach Park, near Seaward Drive Comment
  RSA40900  Sequoia sempervirens C. B. Wolf 1944-10-25 11469 Humboldt Along the Eel River Valley, Redwood Highway, 2.4 miles south of Scotia 61 Comment
  UC1076381  Sequoia sempervirens H. MacGinitie 1932-6-7 Humboldt Comment
  UCD19960  Sequoia sempervirens C. H. Lamoureux; R. Gankin 1956-3-17 1044 Humboldt Southern boundary of Jensen Grove, between Meyers and Miranda on Hwy 101. Comment
  SEINET10719715  Sequoia sempervirens Ronald J. Mastrogiuseppe Mastrogiuseppe s.n. Humboldt On the flood plain of the Founders' Grove. Comment
  SEINET11737925  Sequoia sempervirens J. P. Tracy 1950-1 19387 Humboldt At Park's place, Trinidad 61 Comment
  CAS-BOT-BC364784  Sericocarpus oregonensis subsp. oregonensis Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC202712  Sericocarpus oregonensis subsp. oregonensis Chesnut and Drew 1888-7-24 Humboldt Hy-Am-Pon Comment
  UC1196074  Sherardia arvensis Joseph P. Tracy 1930-6-15 8741 Humboldt near Bosworth's (Larrabee Creek); Larrabee Creek Comment
  UC602551  Sherardia arvensis Joseph P. Tracy 1935-5-25 13883 Humboldt Dobbyn Creek 152 Comment
  HSC92497  Sherardia arvensis W. L. Jepson 1934-5-7 Humboldt Buckeye Praire, Bull Creek Comment
  UC502959  Sidalcea asprella Joseph P. Tracy 1928-6-24 8458 Humboldt between Bridgeville and head of Yager (South Yager Creek) 762 Comment
  JEPS67223  Sidalcea malachroides W. L. Jepson 1902-6-24 1929 Humboldt above Korbel; above Korbel, Korbel to Angel's Ranch Comment
  JEPS67224  Sidalcea malachroides Joseph P. Tracy 1918-7-1 4964 Humboldt along Eel River from South Fork to Scotia; Northern Coast Ranges, Eel River from South Fork to Scotia 60 Comment
  RSA33405  Sidalcea malachroides Doris K. Kildale 1927-7-2 s.n. Humboldt Lord (?) Ellis Road, near Korbel Comment
  UC1197965  Sidalcea malachroides Joseph P. Tracy 1933-7-21 12819 Humboldt between Van Duzen Yager Creek (Redwood House); between Van Duzen and Yager Creek, Redwood House 762 Comment
  HSC100572  Sidalcea malviflora Carl C. Marshall Jun 1887 445 Humboldt East branch. Comment
  RSA28793  Sidalcea malviflora subsp. patula H. E. Parks 1940-05 24177 Humboldt Dow s Prairie 30 Comment
  POM62156  Sidalcea oregana subsp. eximia Joseph P. Tracy 1917-9-1 4831 Humboldt Murphy Meadow, Bald Mountain 1067 Comment
  HSC103772  Silene bolanderi M. R. Mesler 2014-6-4 1634 Humboldt Burr Valley Road near Dinsmore 1012 Comment
  HSC26255  Silene bolanderi Thomas W. Nelson 1971-5-31 444 Humboldt 915 Comment
  SEINET10871683  Silene campanulata Imper 1983-7-6 IMPER s.n. Humboldt Six rivers national forest. T8n,r5e,sec.11. 2.5 Miles e of turnoff to big hill L.o., Hoopa indian reservation, roadside bank, petals pink, inforescence Glandular and pungent, serpintine influence, with knobcone, ceanothus Integerrimus, hickleberry, silene californica, holodescus spp., Arctostaphyllos Spp. 975 Comment
  HSC32481  Silene campanulata subsp. glandulosa Bonnie Prange 1974-5-18 Humboldt Off Hwy. 299 at China Slide. Comment
  HSC57950  Silene campanulata subsp. glandulosa G. L. Clifton, Griswold 1979-7-31 11629 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  UC13562  Silene campanulata subsp. glandulosa Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  HSC40965  Silene gallica Linda M. Barker 1976-6-14 1593 Humboldt 3 mi. W of Arcata Comment
  RSA46893  Silene gallica Doris K. Kildale 1927-5-15 3166 Humboldt Cape Mendocino Comment
  CAS-BOT-BC387076  Silene gallica Doris K. Kildale; L. B. Kildale 1930-5-27 9527 Humboldt Gunther's Island in Humboldt Bay Comment
  HSC68009  Silene gallica J. P. Smith 1970-6-7 3804 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  RSA275316  Silene hookeri J. P. Smith, John Sawyer, Jane Cole 1978-5-21 9932 Humboldt Six Rivers National Forest. Along Ishi Pishi Road, 1.5 miles from Ishi Pishi Bridge over the Klamath River. 305 Comment
  HSC4167  Silene laciniata subsp. californica J. Wendell Howe 1931-6-7 Humboldt Wildcat Rd. W of Ferndale Comment
  HSC4175  Silene laciniata subsp. californica Lincoln Constance 1934-6-1 770 Humboldt S Fork Eel River, Bull Creek Rd. between Dyerville Bridge and Bull Creek Flat Grove. 46 Comment
  HSC45084  Sisymbrium officinale R. Sutherland 1978-4-25 1 .25478 Humboldt Mouth of Buck Creek 21 Comment
  UC702601  Sisyrinchium bellum C. C. and S. K. Harris 1942-6-9 1219 Humboldt 3 mi n and 1 mi w of Fernbridge 33 Comment
  UC1103494  Smilacina racemosa Joseph P. Tracy 1937-7-2 15413 Humboldt head of Little Hors-Linto Creek Trinity Summit 1371 Comment
  UC1103493  Smilacina stellata Joseph P. Tracy 1938-7-7 16039 Humboldt Grouse Mountain 1524 Comment
  UCR45836  Smilacina stellata Barry Silver 1986-4-23 537 Humboldt North Coast Range, Bair Road, 9.5-10 mi NW of the junction with Hwy 299; Pine Ridge Summit Area 997 Comment
  SBBG54057  Solanum americanum R. S. Woglum 1938-8-29 2021 Humboldt Samoa Comment
  JEPS12065  Solanum furcatum Joseph P. Tracy 1940-10-5 16749 Humboldt Trinidad, near boat landing Trinidad 9 Comment
  HSC41004  Solanum parishii J. O. Sawyer 1975-10-17 2715 Humboldt Near Box Camp on Big Hill Rd. to N Trinity Mtn. Comment
  CAS-BOT-BC157484  Solanum umbelliferum H. M. Pollard 1946-9-2 s.n. Humboldt Orleans Mt. Trail 1524 Comment
  HSC58093  Solidago elongata G. L. Clifton, Griswold 1979-8-1 12006 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  HSC76050  Solidago elongata Overton, Butler 1979-8-2 12539 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  LA204243  Solidago lepida var. salebrosa S. T. Parks; H. E. Parks 1930-9-14 785 Humboldt North shore of Big Lagoon Comment
  CAS-BOT-BC365668  Solidago spathulata W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  HSC40262  Solidago spathulata Linda M. Barker 1976-8-2 1670 Humboldt Lanphere- Christensen Dunes, 3 mi. W of Arcata Comment
  SBBG62991  Solidago velutina var. californica R. Hartwell 1938-8-4 Humboldt near Eureka Comment
  HSC26465  Sonchus asper T. O. Osborne 1970-7-18 24 Humboldt Sugarloaf Rock, Cape Mendocino 76 Comment
  CAS-BOT-BC374425  Sonchus asper F. A. MacF. 1934-6-22 13743 Humboldt Arcata, North coast of California Comment
  HSC102045  Sorbus scopulina M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 948 Humboldt Rustic Camp, northwest of Patterson Meadows Comment
  HSC62679  Sparaxis tricolor Michelle Stevens 1979-5-18 49 Humboldt Arcata, 11th and B St. 0 Comment
  RSA85195  Sparganium angustifolium subsp. emersum F. W. Peirson 1923-7-11 3642 Humboldt 20 miles north of Eureka. Comment
  RSA21550  Sparganium angustifolium subsp. emersum Carl B. Wolf 1937-9-14 9354 Humboldt Town of Blue Lake. 15 Comment
  CAS-BOT-BC235371  Spartina densiflora W. A. Silveus 1938-7-10 2966 Humboldt Eureka Comment
  CHSC79893  Spartina densiflora Gordon Leppig; Kai Neader 1999-4-30 1130 Humboldt Humboldt Bay, Eureka. 30 m south of Del Norte St. fishing pier. UTM zone 10, 4517N, 399E. 1 Comment
  HSC87358  Spartina densiflora K. Berg 1986-7-28 637 Humboldt Humboldt Bay, Arcata, foot of I St. Comment
  UCR122386  Spartina foliosa George K. Helmkamp, E. A. Helmkamp 2001-7-8 6994 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  HSC48419  Spartium junceum J. P. Smith, J. O. Sawyer, Jane Cole 1978-5-21 9923 Humboldt Hwy. 36 at Camp Creek Rd. 76 Comment
  CHSC33022  Spergula arvensis subsp. arvensis James Payne Smith Jr. 1970-6-7 3805 Humboldt 0.6 miles north of Luffenholtz Beach along Calif. 1 near Trinidad. Comment
  HSC45059  Spergularia rubra R. Sutherland 1978-5-12 6 .12578 Humboldt Mckee Flat 288 Comment
  RSA239688  Spiraea douglasii Larry E. DeBuhr 1973-4-23 996 Humboldt Big Lagoon 10 miles S of Orick, SW end of lagoon Comment
  RSA472780  Spiraea douglasii Emery M. Whilton 1941-6-25 s.n. Humboldt Scotia. Comment
  HSC36650  Spiranthes romanzoffiana J. D. Ackerman 1975-8-9 631 Humboldt Corner of Guintoli Lane and West End Rd. Vacant lot. Comment
  HSC59648  Spirodela polyrhiza Michael Dalke 1979-5-18 91 Humboldt Hwy. 101, Clam beach pond 0 Comment
  PASA1130  Stachys ajugoides Frank W. Peirson 1932-7-7 Humboldt Near Willow Creek Comment
  UC1541656  Stachys ajugoides var. ajugoides H. E. and S. T. Parks August 1943 24252 Humboldt Spruce Cove Trinidad 64 Comment
  UC577331  Stachys ajugoides var. rigida Joseph P. Tracy 1933-8-6 12944 Humboldt French Camp Ridge 1066 Comment
  UC668213  Stachys ajugoides var. rigida Joseph P. Tracy 1938-7-4 15987 B Humboldt Valley of South Yager Creek 762 Comment
  UCLA71146  Stachys ajugoides var. rigida Joseph P. Tracy 1936-6-8 14874 Humboldt Trinidad 3 Comment
  UC1222860  Stachys ajugoides var. rigida Joseph P. Tracy 1950-6-8 18742 Humboldt near Petrolia (at crossing of river, hills between town and Ocean); Bear River 30 Comment
  UC153991  Stachys ajugoides var. rigida Joseph P. Tracy 1906-6-24 2497 Humboldt region about Humboldt Bay (s side of Humboldt Hill); Northern Coast Region 0 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
  SBBG6537  Stachys rigida H. and M. Dearing 1939-6-23 3696 Humboldt 12 mi E of Arcata Comment
  CAS-BOT-BC175348  Stellaria borealis subsp. sitchana Malcom A. Nobs; S. Galen Smith 1949-8-9 1245 Humboldt Clam Beach Comment
  UC1223446  Stellaria borealis subsp. sitchana Joseph P. Tracy 1950-7-6 19020 Humboldt 3 mi s Burr Valley (w side Buck Mountain); Buck Mountain 1158 Comment
  HSC4276  Stellaria media D. B. Bader 1963-2-17 32 Humboldt Second of the Clam Beach Lagoons W. of Hwy.101 Comment
  CAS-BOT-BC516465  Stenanthium occidentale Joseph P. Tracy 1937-7-25 15558 Humboldt Happy Camp Mountain, in Trinity Fummit range, northeast of Hawkins Bar 1280 Comment
  UC162599  Streptanthus tortuosus Harley P. Chandler June 1901 1441 Humboldt Klamath River North Coast Ranges 304 Comment
  UC673071  Streptanthus tortuosus Joseph P. Tracy 1940-7-7 16667 Humboldt rocky banks Grouse Mt. 1463 Comment
  HSC58158  Streptanthus tortuosus var. tortuosus G. L. Clifton, Terry Griswold 1979-8-2 12218 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  UC275556  Streptopus amplexifolius var. americanus Joseph P. Tracy 1923-6-24 6366 Humboldt near High Prairie (Bald Mountain); Northern Coast Ranges 1066 Comment
  HSC54882  Swertia radiata G. L. Clifton, Griswold 1979-7-25 10883 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  CAS-BOT-BC269568  Symphoricarpos albus var. laevigatus Carl B. Wolf 1930-10-29 1782 Humboldt Old Coast Road at Honeydew Post Office 152 Comment
  HSC39627  Symphoricarpos mollis Thomas W. Nelson, Jane P. Nelson 1976-6-15 2732 Humboldt Along S end of old trail from lookout to Blocksburg. 1585 Comment
  CAS-BOT-BC99164  Symphyotrichum chilense Carl B. Wolf 1928-8-27 1183 Humboldt Salt Marsh Eureka Bay, on the road to Arcata Comment
  CAS-BOT-BC98974  Symphyotrichum foliaceum var. parryi Doris K. Kildale 1925-8-17 1218 Humboldt Trinity Summit near Ranger Station 1828 Comment
  CAS-BOT-BC99369  Symphyotrichum subspicatum W. R. Dudley 1899-6-1 s.n. Humboldt Eureka [Penninsula] Peninsula Comment
  HSC21152  Synthyris reniformis N. J. Cole, D. E. Anderson 1965-4-13 12 Humboldt 2.5 mi. SE of Maple Creek Rd. junction with Bald Mtn. Rd., SE of Korbel Comment
  HSC72485  Synthyris reniformis J. P. Smith, J. O. Sawyer 1973-5-12 6707 Humboldt 10.1 mi. from Hwy. 96 on Big Hill Rd. 1372 Comment
  CHSC1902  Synthyris reniformis var. cordata H. Mapes 1953-3-9 Humboldt Comment
  RSA165849  Tanacetum camphoratum P. A. Munz 1963-6-13 24524 Humboldt At Samoa. Comment
  UC166081  Tanacetum camphoratum J. P. Tracy 1909-7-18 3020 Humboldt opposite Eureka (ocean beach at Samoa); Samoa Comment
  UC726018  Tanacetum camphoratum A. A. Heller 1937-6-12 15900 Humboldt just below road leading up to the lighthouse on Trinidad Head Trinidad Comment
  UC1196935  Taraxia ovata Joseph P. Tracy 1946-5-30 17545 Humboldt flat by old Strong's District School House (5 mi e of Carlotta) 60 Comment
  UC154074  Tauschia kelloggii Joseph P. Tracy 1908-6-7 2607 Humboldt on Mad River at Maple Creek; Northern Coast Ranges, Mad River, Maple Creek 152 Comment
  UC1198892  Tellima grandiflora Joseph P. Tracy Jul 16 1930-Jul 19 1930 9087 Humboldt near McKay Camp (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC89548  Tellima grandiflora M. Roantree 1985-5-2 30 Humboldt E side of Trinidad Head. Comment
  SEINET12221186  Tellima grandiflora J. P. Tracy 1950-1 18722 Humboldt near Mountain Glen Ranch, 7 mi S of Ferndale, Bear River Ridge 610 Comment
  CAS-BOT-BC399769  Thalictrum polycarpum Joseph P. Tracy 1933-5-20 12256 Humboldt Northern Coast Ranges. Mattole Valley 30 Comment
  UC1239774  Thelypteris nevadensis Joseph P. Tracy 1935-7-22 14124 Humboldt near Forks of Tish Tang-a Tang Creek Trinity Summit 1219 Comment
  UC14398  Thlaspi californicum Chesnut and Drew 1888-7-9 Humboldt Kneeland Comment
  UC552289  Thlaspi montanum var. montanum Joseph P. Tracy 1933-7-11 12690 Humboldt Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  CAS-BOT-BC81306  Thuja plicata Doris K. Kildale 1927-5-13 3130 Humboldt Green Point, Redwood Creek road Comment
  UCD134111  Thuja plicata Jo Ann Olson; Gary R. Robbins 1969-4-27 36 Humboldt On Mattole Road, ca. 1 mile south of Ferndale. 152 Comment
  HSC100464  Thysanocarpus curvipes Carl C. Marshall Apr 1887 370 Humboldt Hoopa Valley. Comment
  HSC22843  Thysanocarpus curvipes D. E. Anderson, J. O. Sawyer, J. P. Smith 1970-5-10 5060 Humboldt Along road from Redwood Creek to Hoopa, 1-3 mi. W of Hoopa Comment
  HSC6995  Thysanocarpus curvipes E. C. Murczek 1964-4-4 27 Humboldt 8 mi. N of Hoopa Comment
  UC183553  Thysanocarpus curvipes Joseph P. Tracy 1913-6-11 4092 Humboldt in valley of Van Duzen River opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River, Buck Mt. 762 Comment
  SDSU9574  Tiarella Harvey 1938-8-14 2320 Humboldt Between Arcarta & Willow Creek, US 299. 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
  SBBG70437  Tiarella trifoliata var. unifoliata R. Hartwell 1938-8-3 100 Humboldt Garden Club of America Redwood Grove, near Garberville Comment
  UC183590  Tiarella trifoliata var. unifoliata Joseph P. Tracy 1912-7-25 3813 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC12522  Tiarella trifoliata var. unifoliata J. P. Tracy 1901-6-30 1209 Humboldt Near Eureka 0 Comment
  HSC20435  Tiarella trifoliata var. unifoliata W. D. Stevens 1967-7-14 35 Humboldt Along Bear Creek, 1/2 mi. upstream from Hwy. 101 bridge. Comment
  POM48093  Tiarella trifoliata var. unifoliata J. B. Feudge 1923-7-19 58 Humboldt Fortuna. 15 Comment
  RSA151820  Tiarella trifoliata var. unifoliata H. K. Sharsmith, Francia Chisaki 1959-8-22 4753 Humboldt At Happy Camp. Just over Trinity County line. 915 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
  HSC27852  Tolmiea diplomenziesii Clifton Raymond Chesbrough 1973-6-19 60 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  HSC97516  Tolmiea diplomenziesii Kay Izlar 2001-3-24 7 Humboldt HSU forest along Jolly Giant Creek 43 Comment
  JEPS49717  Tolmiea diplomenziesii Milo S. Baker 1923-7-31 154 Humboldt Booth's Run Yager Creek Region (tributary of Lawrence Creek) Comment
  CAS-BOT-BC447609  Tolmiea menziesii Volney Rattan 1883-6-1 s.n. Humboldt Humboldt County Comment
  HSC41012  Tonella tenella J. P. Smith, J. O. Sawyer 1976-5-2 8631 Humboldt Hoopa Reservation, 0.2 mi. W of junction with Loop Rd. along Redwood Creek-Hoopa Rd. 61 Comment
  UC27662  Tonella tenella Harley P. Chandler Jun 1901 1275 Humboldt Hupa Mts. Hupa Indian Reservation (between Bairs and summit) 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
  HSC97966  Torilis arvensis Cara Witte 2007-7-2 393 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1406 Comment
  JEPS14238  Torilis nodosa Joseph P. Tracy 1927-6-18 8183 Humboldt near Petrolia (Hills between Petolia and Ocean) 152 Comment
  JEPS4746  Tracyina rostrata Joseph P. Tracy 1930-6-15 8762 Humboldt Dobbyn Creek 152 Comment
  JEPS88012  Tracyina rostrata John L. Strother with Bruce G. Baldwin and Robert Ornduff 1996-5-30 1363 Humboldt on unpaved Stewart Ranch Rd ca 1 km (0.6 mi) e Alderpoint-Blocksburg Road (ne of Alderpoint) 160 Comment
  HSC49054  Trichostema lanceolatum Patricia Shesgreen 1978-7-30 122 Humboldt Sea Lion Gulch, 50 yards from ocean along stream bank Comment
  UC198890  Trichostema laxum Chestnut and Drew Humboldt Kneeland Prairie Comment
  UC32547  Trichostema laxum Chestnut and Drew 1888-7-12 Humboldt Campbell's Comment
  UC162776  Trifolium albopurpureum var. albopurpureum Joseph P. Tracy 1908-6 2854 Humboldt opposite Buck Mtn (valley of Van Duzen River); Northern Coast Ranges 762 Comment
  UC1223382  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1933-5-20 12248 Humboldt 1 mile west Petrolia (Mattole Valley); Northern Coast Ranges Comment
  UC1223393  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1948-5-31 17989 Humboldt near Harris (West side of top of Spruce Grove Ridge) 762 Comment
  UC162829  Trifolium barbigerum J. P. Tracy 1909-5-2 2964 Humboldt immediate vicinity Eureka 0 Comment
  HSC45121  Trifolium bifidum R. Sutherland 1978-5-19 17 .19578 Humboldt 183 Comment
  UC1541600  Trifolium ciliolatum Harold E. Parks May 1923 1497 Humboldt Eel River, McCanns Comment
  UC1223490  Trifolium cyathiferum Joseph P. Tracy 1950-7-6 19007 Humboldt 2 mi s Burr Valley (on Albee Rd) 1158 Comment
  UC1103442  Trifolium depauperatum var. depauperatum Joseph P. Tracy 1916-4-30 4684 Humboldt Bucksport Northern Coast Ranges, Eureka 60 Comment
  UC1197052  Trifolium dubium Joseph P. Tracy 1923-6-17 6267 Humboldt Dows Prairie Northern Coast Ranges 60 Comment
  UC1223468  Trifolium dubium Joseph P. Tracy 1948-5-31 18024 Humboldt Blocksburg Comment
  SEINET12147892  Trifolium eriocephalum J. P. Tracy 1933-1 12647 Humboldt Brannan Mountain 1067 Comment
  UC1039817  Trifolium fucatum J. I. Mallory 1956-4-27 129 Humboldt 1 3/4 mi w Petrolia (at head of Jeffrey Gulch, Humbolt base and Mer.); Quad. 28-B4 121 Comment
  HSC79552  Trifolium fucatum Kenneth Clark 1980-4-18 573 Humboldt 350 yards SE of Dead Man's Gulch (Point No Pass) 8 Comment
  SEINET6934968  Trifolium fucatum Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  UC495642  Trifolium gracilentum Joseph P. Tracy 1932-5-22 10124 Humboldt betw Miranda and Redway (South Fork of Eel River); North Coast Ranges 91 Comment
  HSC48764  Trifolium longipes Brad Klipfel 1973-6-10 100 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1197233  Trifolium macraei Joseph P. Tracy 1923-5-19 6209 Humboldt near Trinidad; Northern Coast Ranges 15 Comment
  JEPS65951  Trifolium microcephalum Joseph P. Tracy 1932-5-1 9893 Humboldt vicinity Garberville; Northern Coast Ranges 121 Comment
  UC1197551  Trifolium microdon Joseph P. Tracy 1932-5-1 9892 Humboldt Garberville vicinity Northern Coast Ranges 121 Comment
  UC1223364  Trifolium microdon Joseph P. Tracy 1950-6-8 18731 Humboldt Bear River ridge 609 Comment
  CDA28005  Trifolium microdon E. C. Whitney 1978-5-25 Humboldt Art Tooby property, Harris. 0 Comment
  JEPS66102  Trifolium obtusiflorum Lincoln Constance 1934-5-26 669 Humboldt s end Dyerville Bridge; South Fork Eel River, Bull Creek Region Comment
  UC1197485  Trifolium obtusiflorum Joseph P. Tracy 1911-6-29 3267 Humboldt near Hydesville (Van Duzen River); Northern Coast Region 60 Comment
  UC160990  Trifolium obtusiflorum Joseph P. Tracy 1911-7-10 3488 Humboldt near mouth of Willow Creek (along Trinity River); Northern Coast Ranges, Valley of Trinity River 152 Comment
  UC16702  Trifolium pratense Joseph Burtt Davy and Walter C. Blasdale 1899-6-15 5535 Humboldt near Scotia Comment
  SD90164  Trifolium repens Benjamin C. Stone 1952-6-21 117 Humboldt Stone Lagoon on Hwy 101 14 Comment
  UC1223324  Trifolium repens Joseph P. Tracy 1936-6-28 15021 Humboldt at Lake Prairie Bald Mtn 1066 Comment
  UC162779  Trifolium repens J. P. Tracy 1903-8-9 1946 Humboldt immediate vicinity Eureka 0 Comment
  HSC98062  Trifolium repens Cara Witte 2007-7-11 503 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  UCD109495  Trifolium variegatum var. major W. Williams 1951-1 s.n. Humboldt location unknown. Comment
  UC169057  Trifolium variegatum var. melananthum Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3594 Humboldt near Hydesville; Northern Coast Region 30 Comment
  UC160945  Trifolium variegatum var. variegatum J. P. Tracy 1907-7-10 2587 Humboldt Eureka vicinity 0 Comment
  UC495687  Trifolium willdenovii Joseph P. Tracy 1932-5-16 10110 Humboldt near Samoa; Northern Coast Ranges, Humboldt Bay 6 Comment
  BLMAR259  Trifolium wormskioldii Jennifer Anthony-Wheeler 1998-4-22 259 Humboldt King range, strawberry rock grazing allotment 280 Comment
  POM277677  Trifolium wormskioldii Lyman D. Benson 1928-7-10 438 Humboldt Clam Beach, Trinidad. Hills back of the ocean. 15 Comment
  UC1223521  Trifolium wormskioldii Joseph P. Tracy 1938-7-12 16052 Humboldt w end of Table Bluff Comment
  HSC90808  Triglochin concinna Gail Newton 1982-5-2 2511 Humboldt Elk River Wildlife Area, Eureka Comment
  CAS-BOT-BC451802  Triglochin maritima Ira L. Wiggins 1932-6-18 5868 Humboldt At mouth of Little River Comment
  HSC14172  Triglochin maritima R. L. Jarvis 1962-4-29 31 Humboldt Stone Lagoon, 3 mi. S of Orick 0 Comment
  HSC36302  Triglochin maritima Camille Cornish 1973-10-16 9 Humboldt On shore of Big Lagoon Comment
  UC1100175  Triglochin maritima Malcolm A. Nobs and S. Galen Smith 1949-8-3 1169 Humboldt 1 mi s Fields Landing; Eel River Valley Comment
  UCD139896  Trillium albidum R. N. Raynor 1935-3-13 s.n. Humboldt Fort Seward. Comment
  HSC15686  Trillium albidum W. D. Stevens 1964-5-16 16 Humboldt 1.0 mi. N of Kneeland School Comment
  HSC39195  Trillium albidum D. E. Anderson, J. P. Smith 1971-7-6 - 1330 Humboldt 1.0 mi. W of Pine Ridge Summit, 6 mi. E of junction with Redwood Valley Rd. Comment
  HSC100368  Trillium angustipetalum J. Moore 2007-5-17 1483 Humboldt Big Flat Campground. 488 Comment
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Jan 10 2018
  HSC15689  Trillium kurabayashii K. P. St. John 1965-4-24 43 Humboldt Dry Lagoon State Park, 13 mi. N of Trinidad Comment
  CHSC3179  Trillium ovatum Robert D. Briggs 1966-4-2 R- 144 Humboldt Eight miles east of Blue Lake on State hwy. 299. Comment
  HSC74571  Trillium ovatum M. A. Baker 1980-5-17 1192 Humboldt Near Le Perron Peak 792 Comment
  SEINET10275388  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
  SEINET3992212  Trillium sessile Unknown 1928-4-29 8418 Humboldt Prairie Creek 152 Comment
  SEINET10458968  Triodanis biflora Chesnut CHESNUT s.n. Humboldt KNEELAND, CAMPBELLS Comment
  JEPS13339  Triphysaria eriantha subsp. eriantha Harley P. Chandler May, 1901 1142 Humboldt Humboldt Bay; North Coast Ranges, Humboldt Bay 3 Comment
  UC1199622  Triphysaria eriantha subsp. eriantha Harley P. Chandler May 1901 1142 Humboldt Humboldt Bay; North Coast Ranges Comment
  UC1222435  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1932-5-10 9947 Humboldt terraces near Petrolia (Mattole Valley); Northern Coast Ranges, Mattole Valley 60 Comment
  UC1198035  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1918-5-5 4926 Humboldt Sand Dunes of Ocean Beach at Humboldt Bay; Northern Coast Region, Ocean Beach at Humboldt Bay Comment
  UC902255  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1944-5-14 17465 Humboldt at Bucksport (near Eureka); , at Bucksport 6 Comment
  UC176946  Triphysaria pusilla Joseph P. Tracy 1913-6-18 4196 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC59235  Triphysaria versicolor subsp. faucibarbata Clark L. Miller 1979-5-29 5153 Humboldt Arcata Bottoms Comment
  JEPS10443  Triphysaria versicolor subsp. versicolor Joseph P. Tracy 1944-5-14 17467 Humboldt Eureka 6 Comment
  JEPS11165  Triphysaria versicolor subsp. versicolor J. P. Tracy 1944-5-14 17467 Humboldt Eureka Comment
  UC1198041  Triphysaria versicolor subsp. versicolor J. P. Tracy 1901-5-16 1091 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  UC677722  Triphysaria versicolor subsp. versicolor S. K. Harris 1936-6-7 683 Humboldt Eureka 3 Comment
  HSC103433  Triphysaria versicolor subsp. versicolor Thomas W. Nelson, Jane Nelson 2005-5-1 9305 Humboldt Eureka; vacant field at Broadway and Koster Streets. Comment
  CAS-BOT-BC193514  Trisetum cernuum Henry M. Pollard 1948-7-22 s.n. Humboldt Perch Creek Canyon near Orleans Comment
  HSC13423  Trisetum cernuum T. F. Newman 1966-5-1 6645 Humboldt H.S.U Campus Comment
  HSC38429  Trisetum cernuum D. E. Anderson, J. P. Smith 1971-6-18 - 1056 Humboldt 1 mi. W of Lord Ellis Summit Comment
  UC1103149  Trisetum cernuum J. P. Tracy 1902-6-20 175 1/2 Humboldt immediate vicinity Eureka 0 Comment
  SEINET11682986  Trisetum cernuum K. S. Erdman 1970-1 4814 Humboldt Fern Canyon at mouth of Home Creek, Prairie Creek SP in Redwood National Park Comment
  UC1103147  Trisetum flavescens Joseph P. Tracy 1917-7-1 4830 Humboldt Eureka; Northern Coast Ranges 0 Comment
  UC15030  Triteleia bridgesii Mrs. M. H. Manning 1901-5-22 1 Humboldt Hupa Valley Comment
  HSC32937  Triteleia laxa Thomas W. Nelson, James Nelson 1973-5-28 952 Humboldt McKeown Ranch N of Dinsmore Comment
  NY64310  Tsuga heterophylla E. K. Balls 1953-10-13 18654 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
  SBBG83394  Tsuga heterophylla R. Gankin 1965-8-7 563 Humboldt just N of parking area; Big Lagoon County Park Comment
  UCR275103  Typha domingensis Charity A. Hartshorn 2016-4-24 20 Humboldt Arcata Marsh & Wildlife Sanctuary, east end of Klopp Lake 7 Comment
  HSC13200  Umbellularia californica Jana Kattenhorn 1970-10-24 110 Humboldt HSC Campus, E of Building 37 Comment
  HSC49395  Umbellularia californica R. York 1979-4-16 235 Humboldt Corner of 12th and D in Arcata Comment
  UC1175130  Umbellularia californica P. C. Everett and E. K. Balls 1959-10-25 23958 Humboldt 12.4 mi w from Willow Creek (along U.S. Hwy 299 to Arcata) 655 Comment
  UC1223044  Uropappus lindleyi Joseph P. Tracy 1947-5-10 17676 Humboldt near Briceland Comment
  POM380627  Urtica dioica subsp. gracilis Lyman D. Benson 1929-7-12 1792 Humboldt Weott Ranger Station; S Fork Eel River. Comment
  HSC55012  Vaccinium membranaceum G. L. Clifton 1979-7-31 11394 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC1197787  Vaccinium membranaceum Joseph P. Tracy 1934-8-29 13625 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC7910  Vaccinium ovatum Dan O'Brien 1962-5-20 Humboldt 0.5 mi. E of Humboldt State University campus Comment
  POM232033  Vaccinium ovatum I. L. Wiggins 1930-6-25 4613 Humboldt Sand dunes 2 miles north of Samoa. Comment
  UC1197768  Vaccinium ovatum Joseph P. Tracy 1918-5-5 4919 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  UC484083  Vaccinium ovatum Carl B. Wolf 1930-10-24 Humboldt 2 mi below mouth of Salmon River; Klamath River 152 Comment
  UCD118091  Vaccinium ovatum Gordon Leppig 1998-6-26 854 Humboldt McKinleyville, Rt. 101 @ Mad River Overlook. 24 Comment
  CAS-BOT-BC199408  Vaccinium parvifolium C. C. Harris; S. K. Harris 1936-6-9 3297 Humboldt Behind Mrs. Wilder's, Carlotta Comment
  HSC31220  Vaccinium parvifolium D. E. Anderson 1972-6-20 5729 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  HSC37332  Vaccinium parvifolium Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 477 Humboldt Along Lost Man Creek. 38 Comment
  UC1225910  Vaccinium parvifolium Joseph P. Tracy 1945-3-10 17495 Humboldt Eureka 30 Comment
  UC562351  Vaccinium uliginosum subsp. occidentale Joseph P. Tracy 1935-7-26 14262 Humboldt Water Dog Lakes Trinity Summit 1828 Comment
  CAS-BOT-BC76046  Vancouveria hexandra Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta. Comment
  HSC58189  Vancouveria hexandra G. L. Clifton, Griswold 1979-8-2 12280 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  SDSU13780  Vancouveria hexandra D. F. Howe 1969-6-4 4630 Humboldt 14.6 miles east of Alton on #36. 91 Comment
  JEPS33034  Vancouveria hexandra Milo S. Baker 1923-7-16 19 Humboldt 3 mi se Eureka Comment
  HSC75554  Vancouveria planipetala J. O. Sawyer, R. J. Cole 1977-7-3 3003 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  HSC99653  Vancouveria planipetala Jimerson, J. Pageau 1979-6-13 544 Humboldt Near Onion Lake, close to the town of Orleans 549 Comment
  CAS-BOT-BC527425  Veratrum californicum Joseph P. Tracy 1934-6-21 13244 Humboldt Local in wet place at Still Ranch 2 mi. S of Fields Landing (exterminated there about 1937) Comment
  UC1222526  Veratrum californicum var. californicum Joseph P. Tracy 1950-9-2 19347 Humboldt 2 mi s Field's Landing town (at Still Ranch) 6 Comment
  UC1173640  Veratrum californicum var. californicum Joseph P. Tracy 1936-6-28 15011 Humboldt near Murphy Meadows; Bald Mountain 975 Comment
  HSC102165  Veratrum viride M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1075 Humboldt Patterson Meadows 1566 Comment
  UC1198205  Veratrum viride Joseph P. Tracy 1937-8-12 15659 Humboldt Snow Camp 1402 Comment
  UC535722  Verbascum blattaria Eleanor Armstrong 1934-8-18 1178 Humboldt Richardson Grove; along river 121 Comment
  JEPS11195  Verbascum thapsus W. L. Jepson 1936-8-12 17873 Humboldt South Fork Eel River Phillipsville; South Fork Eel River Comment
  HSC21173  Verbascum thapsus H. D. Sumner 1959-7-13 Humboldt Redwood Creek near Hwy. 299 305 Comment
  HSC40885  Verbascum thapsus Thomas W. Nelson, Jane Nelson 1976-6-22 2868 Humboldt On SW-facing slope at Goat Mtn. lookout 1666 Comment
  CDA30233  Verbena lasiostachys M. K. Beyers, I. Shepardson 2009-9-13 240 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
  HSC67839  Verbena lasiostachys J. P. Smith 1971-10-9 5027 Humboldt Mad River above the Fish Hatchery. Comment
  JEPS39084  Verbena lasiostachys var. lasiostachys Lincoln Constance 1934-5-26 660 Humboldt s end Dyerville Bridge; S Fork Eel River 45 Comment
  HSC21197  Veronica americana W. F. Nickel 1965-5-15 Humboldt 1/4 mi. E of Arcata on road to Arcata Reservoir, near Jolly Giant Parking Lot Comment
  HSC102112  Veronica serpyllifolia subsp. humifusa M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1016 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC56370  Vicia americana var. americana Griswold, Butler 1979-7-11 6391 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  HSC73151  Vicia americana var. americana M. A. Baker 1980-5-18 1304 Humboldt Near Black Mtn. 1006 Comment
  SEINET10738618  Vicia americana var. americana J. Richard Abbott, B. S. Carlsward 1999-7-7 Abbott 13014 Humboldt On U.S. 101, near Holmes, 1.76 km south of Stafford Road. Comment
  UC1222597  Vicia americana var. americana Joseph P. Tracy 1950-6-8 18733 Humboldt 7 mi s Ferndale (near Mountain Glen Ranch, Summit of Bear River Ridge); Bear River Ridge 609 Comment
  HSC104452  Vicia benghalensis Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 22 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  UC1222588  Vicia hirsuta Joseph P. Tracy 1950-6-17 18835 Humboldt Eureka Comment
  UCD108675  Vicia hirsuta Linda M. Barker 1976-5-13 1479 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC38207  Vicia hirsuta Thomas W. Nelson 1976-4-20 2381 Humboldt 12th and B St., Arcata Comment
  SEINET12157875  Vicia hirsuta J. P. Tracy 1944-1 17474 Humboldt slowly spreading in Eureka (same place as # 17428) Comment
  BLMAR500  Vicia sativa subsp. nigra Jennifer Wheeler 2009-4-30 500 Humboldt King range, Hidden Valley trail Comment
  HSC3231  Vinca major W. F. Nickel 1965-5-15 Humboldt On Hwy. at N stoplight in Arcata. Comment
  CAS-BOT-BC263942  Viola adunca Mrs. H. C. Cantelow 1941-4-26 s.n. Humboldt 12 miles SW of Ferndale, on road to Cape Mendocino Comment
  CAS-BOT-BC263951  Viola adunca L. B. Kildale 1926-3-26 1656 Humboldt Dillon Road between Beatrice and Field's Landing Comment
  HSC102013  Viola adunca M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 914 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC21771  Viola adunca J. J. Wagoner 1965-4-3 10 Humboldt 16 mi. N of Trinidad, W of Hwy. 101 in Dry Lagoon State Beach Park 6 Comment
  HSC36881  Viola adunca J. P. Smith, J. O. Sawyer, J. Cole 1976-4-18 8611 Humboldt Bald Hills Rd., 13 mi. from its junction with U.S. 101 Comment
  HSC73697  Viola bakeri M. A. Baker 1980-7-19 2998 Humboldt Near Bret Hole. 1814 Comment
  POM161057  Viola cuneata Joseph P. Tracy 1926-6-6 7560 Humboldt Hoopa Mountain. On road west from Hoopa Valley. 915 Comment
  HSC21865  Viola hallii Paul Shields May 1955 Humboldt Kneeland Comment
  HSC33056  Viola hallii Thomas W. Nelson 1974-5-7 1234 Humboldt Beside airstrip at Kneeland Prairie Comment
  HSC70232  Viola hallii M. A. Baker 1980-6-8 1894 Humboldt Near Buck Flat. 1554 Comment
  HSC96958  Viola hallii Ryoko Ito, Shauna McDonald 2007-6-4 2 Humboldt Coldspring Camp, 7.4 mi. above Hwy. 299; off FS road NF1, on FS road 5N27 1433 Comment
  JEPS80008  Viola lobata subsp. integrifolia Joseph P. Tracy 1937-7-2 15408 Humboldt head of Little Hors-Linto Creek (Trinity Summit); , Little Hors-Linto Creek 1371 Comment
  JEPS50441  Viola ocellata Joseph P. Tracy 1922-4-30 6034 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1761529  Viola praemorsa subsp. praemorsa Milo S. Baker 1923-7-20 33 Humboldt near the head of the South Fork of the Yager Comment
  UCD111295  Viola sempervirens K. Esau 1934-4-1 s.n. Humboldt Above Fort Seward. Comment
  UC1761977  Viola sempervirens J. P. Tracy Apr 1941 Humboldt somewhere near Willow Creek Comment
  CAS-BOT-BC199801  Vulpia Doris K. Kildale 1927-6-25 3563 Humboldt Fearren's Ranch between Thorn & Shelter Cove Comment
  HSC9834  Vulpia bromoides W. F. Nickel 1965-3-17 Humboldt HSU campus, behind wildlife building Comment
  RSA10149  Vulpia bromoides Joseph P. Tracy 1925-5-17 6980 Humboldt Trinity River Valley, near the South Fork. 183 Comment
  SEINET7297974 Image available Vulpia bromoides Joseph P. Tracy 1948-1 18065 Humboldt Trinidad 3 Comment
  SEINET3132612  Vulpia microstachys var. microstachys D. E. Anderson, JO Sawyer, JP Smith Jr. 1970-5-10 5056 Humboldt Along road from Redwood Creek to Hoopa, ca. 1-3 mi. W of Hoopa Comment
  UC525649  Vulpia microstachys var. pauciflora Joseph P. Tracy 1933-6-13 12599 Humboldt near summit on road from Hoopa to Bair's; Hoopa Mountain 1066 Comment
  CAS-BOT-BC184732  Vulpia myuros subsp. megalura Doris K. Kildale 1929-5-26 9131 Humboldt Klamath River at Orleans 152 Comment
  SEINET251379 Image available Vulpia myuros var. hirsuta Harley P. Chandler 1186 Humboldt Humboldt Bay Comment
  CAS-BOT-BC128819  Whipplea modesta A. A. Heller 1937-6-8 15894 Humboldt In the forest at Bishop Pine Lodge, 3 miles north of Trinidad Comment
  HSC20441  Whipplea modesta D. E. Anderson 1962-5-1 2197 Humboldt 2 mi. W of Hoopa Comment
  HSC24392  Whipplea modesta J. O. Sawyer 1970-6-24 2237 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC98363  Whipplea modesta T. Jimerson, J. Pageau 1979-6-13 545 Humboldt Near Onion Lake, close to the town of Orleans. 549 Comment
  HSC99406  Whipplea modesta K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 55 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC570904  Whipplea modesta Herbert L. Mason 1932-7-21 7112 Humboldt on road from Arcata to Weaverville (e slope of mts.); Southfork Mountains Comment
  JEPS60113  Woodwardia fimbriata W. L. Jepson 1936-8-15 17903 Humboldt Grizzly Creek, Van Duzen River Grizzly Creek; Van Duzen River Comment
  POM281864A  Woodwardia fimbriata Lyman Benson 1928-7-9 396 Humboldt Weott Ranger Station. Seaward N Coast Range, S Fork Eel River watershed. 61 Comment
  BLMAR681  Wyethia angustifolia Jennifer Wheeler 2013-6-25 681 Humboldt Humboldt County, Mattole Road, north side of Capetown 202 Comment
  HSC6317  Wyethia angustifolia D. E. Anderson 1963-5-25 2484 Humboldt 2-3 mi. N of Capetown Comment
  SBBG60857  Wyethia angustifolia R. Hartwell 1938-8-5 Humboldt Mattole Rd, on the "Hump," near Capetown, above the sea Comment
  SEINET11799537  Wyethia angustifolia J. P. Tracy 1950-1 18739 Humboldt near Capetown, Bear River Ridge 30 Comment
  POM192569  Wyethia longicaulis H. E. Parks 1930-05 0740 Humboldt Laribee Valley Comment
  RSA441183  Xanthium strumarium M. B. Dunkle 1936-8-22 4856 Humboldt Williams Grove, Eel River. 213 Comment
  RSA498212  Xerophyllum tenax W. Hutchinson 1927-05 s.n. Humboldt Humboldt County Comment
  UC1198220  Xerophyllum tenax Joseph P. Tracy 1937-8-12 15630 Humboldt Snow Camp 1402 Comment
  CAS-BOT-BC527083  Xerophyllum tenax L. R. Abrams No date on lable. 7096 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  HSC8414  Zeltnera muehlenbergii J. P. Tracy 1938-7-18 16085 Humboldt Fickle Hill, 4 mi. S of Arcata 366 Comment
  UCSB26612  Zeltnera muehlenbergii Havlik, Neil 1968-8-22 Humboldt Bull Creek Flat; Humboldt Redwoods State Park Comment
  CAS-BOT-BC532737  Zigadenus micranthus Doris K. Kildale 1926-3-23 1606 Humboldt Alton Hill Comment



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