Search Results — 2000 specimen records retrieved (1394 records with coordinates)
(That's the default maximum. Contact Jason Alexander for larger data requests.)

Results for search: County=HUMBOLDT; Source=All;   
Map/download results:

BerkeleyMapper with layers and yellow flags

Download Options:
Select all records · Select records with coordinates

Include annotations and voucher information

PLEASE NOTE: Due to changes in newer versions of Excel, directly copying text from the above selected results does not produce a usable table.
    Follow these steps:
      1. The contents of the selected results window must be copied into a text editor like TextEdit for Mac or WordPad for Windows
      2. The selected results must be saved as a new text document.
      3. This new text document can now be copied into Excel or imported as a tab delimited text file.

(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.

Click on column header to sort data (* sorts by family); click in leftmost checkbox to select record. CCH Help Page.
A yellow cell in the column headed "?", for records with coordinates, indicates a discrepancy with respect to range as specified in the eFlora. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  HSC102605  Abies concolor M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1592 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC54516  Abies concolor Overton, Butler 1979-7-23 9432 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  HSC76295  Abies concolor Denis Kearns 1981-7-24 438 Humboldt Near Whiteys Peak. 1768 Comment
  JEPS47985  Abies grandis W. L. Jepson 1921-9-10 9457 Humboldt Bull Creek flat South Fork of Eel River, Bull Creek flat 60 Comment
  RSA134610  Abies grandis P. C. Everett, E. K. Balls 1959-10-25 23972 Humboldt 10 mi SW from Ferndale on old coast road to Capetown. 457 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
  UC502907  Abies magnifica var. shastensis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8963 Humboldt in forest near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC55499  Abronia latifolia J. P. Tracy 1901-8-7 1271 Humboldt Sand Hills of Ocean Beach Samoa, Opp Eureka Comment
  CAS-BOT-BC383851  Abronia latifolia Ira L. Wiggins 1932-7-19 5888 Humboldt Near Clam Beach, eight mi. north of Arcata Comment
  RSA0025082  Abronia latifolia I. L. Wiggins 1930-7-7 4672 Humboldt Sand dunes near Samoa. Comment
  CDA40639  Acaena novae-zelandiae G. S. Lester 1973-11-8 55 Humboldt Anchor Tree Farm, east of McKinleyville, near Fieldbrook. Comment
  UC35021  Acer circinatum Chesnut and Drew 1888-5 Humboldt Arcata Comment
  UC1199015  Acer glabrum var. glabrum Joseph P. Tracy 1936-8-7 15089 Humboldt head of Little Hors-Linto Creek Trinity Summit 1371 Comment
  UC902128  Acer glabrum var. glabrum Joseph P. Tracy 1949-8-26 18530 Humboldt head of Little Hors-Linto Creek Trinity Summit 1371 Comment
  CAS-BOT-BC331593  Acer macrophyllum Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  SEINET3098689 Image available Acer macrophyllum Joseph P. Tracy 1914-6-7 4493 Humboldt REgion about Humboldt Bay; valley of North Fork of Elk River. 0 Comment
  UC205627  Acer macrophyllum Joseph P. Tracy 1920-10-24 5404 Humboldt near Korbel (North Fork of Mad River); Northern Coast Ranges, North Fork of Mad River 60 Comment
  CDA9165  Achillea filipendulina F. Bapeaux 1975-7-7 Humboldt McKinleyville. 0 Comment
  RSA254748  Achillea millefolium var. arenicola Thomas W. Nelson 1971-11-11 597 Humboldt Growing on the sand dunes at the foot of Murray Rd. McKinleyville Comment
  RSA50430  Achillea millefolium var. arenicola G. R. Campbell 1949-6-28 s.n. Humboldt Collected near pool on Administration Grounds of Botanic Gardens, grown under prop. No. 5487 (seed collected by P. C. Everett, July 20, 1947, on coastal sand dunes, mouth of little river, along hwy 101, north of Eureka) Comment
  RSA26852  Achillea millefolium var. californica I. L. Wiggins 1940-7-10 s.n. Humboldt Big Lagoon. Comment
  HSC70631  Achlys triphylla R. York 1980-5-18 585 Humboldt Near Black Mtn. 390 Comment
  SFV5403  Achlys triphylla J. Turner, F. M. Ball 1962-7-10 s. n. Humboldt East Fork Willow Creek Forest Camp. Highway 299 about 5 miles west of Willow Creek. 457 Comment
  JEPS52978  Achlys triphylla subsp. triphylla W. L. Jepson 1932-7-29 16446 Humboldt Van Duzen R., Grizzly Flat Comment
  UC1222925  Achyrachaena mollis Joseph P. Tracy 1948-6-13 18054 Humboldt nearby grassy slopes Harris Comment
  CHSC35605  Acmispon parviflorus Jame P. Smith 1973-5-26 6837 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC71035  Acmispon wrangelianus Thomas W. Nelson 1977-4-20 3327 Humboldt Along FS Rd. 1N15 at bridge over Mad River 762 Comment
  JEPS5767  Aconitum columbianum Joseph P. Tracy 1937-8-12 15661 Humboldt Snow Camp Comment
  CAS-BOT-BC412848  Aconogonon davisiae Thomas Nelson 1979-7-11 5022 Humboldt North Trinity Mountain and ridge to east. SE of Water Dog Lake 1828 Comment
  UC1196186  Actaea rubra Joseph P. Tracy 1901-7-31 1230 Humboldt near Hydesville; Northern Coast Region 60 Comment
  BLMAR360  Actaea rubra Clara Sander 2003-7-7 360 Humboldt King range, Roadside 18 Comment
  RSA21189  Actaea rubra subsp. arguta Carl B. Wolf 1937-8-11 9148 Humboldt N Coast Range, Van Duzen River, 2.7 miles W of Dinsmores. 457 Comment
  HSC73574  Adenocaulon bicolor Gail Newton 1980-7-14 1511 Humboldt Near Deadman Ridge 1097 Comment
  UC169341  Adenocaulon bicolor Joseph P. Tracy 1912-7-27 3880 Humboldt Kneeland Prairie 762 Comment
  UCR123954  Adiantum aleuticum George K. Helmkamp, E. A. Helmkamp 2001-7-8 6969 Humboldt North Coast, CA Hwy 36, along the Van Duzen River, 19.6 mi east of CA Hwy 101, west of Bar W Road 137 Comment
  CAS-BOT-BC65627  Adiantum jordanii Doris K. Kildale 1927-3-16 2995 Humboldt Phillipsville, South Fork of Eel River Comment
  RSA178539  Aesculus californica Joseph P. Tracy 1950-6-21 18856 Humboldt Trinity River Valley, near the South Fork: At mouth of South Fork, on west side. 183 Comment
  HSC54875  Agastache urticifolia G. L. Clifton, Griswold 1979-7-25 10852 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  UC577348  Agastache urticifolia Joseph P. Tracy 1932-7-13 10498 Humboldt Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  CAS-BOT-BC30382  Ageratina occidentalis Carl B. Wolf 1927-8-27 1157 Humboldt On the Klamath River, 2 mi. below the Salmon River Comment
  RSA93723  Ageratina occidentalis F. W. Peirson 1926-7-13 7052 Humboldt Near Blue Lake, Mad River Comment
  JEPS36371  Agoseris apargioides William S. Cooper 1925-7-29 114 Humboldt Samoa Comment
  HSC32125  Agoseris grandiflora D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5586 Humboldt Mount Lassic and 2 smaller peaks to immediate east 1768 Comment
  HSC57003  Agoseris grandiflora Overton, Butler 1979-7-24 9589 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  UC1222932  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1949-8-7 18446 Humboldt Box Camp, in meadow Trinity Summit 1463 Comment
  OBI6921  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1949-6-25 18344 Humboldt 1 mi W of Mud Springs (to Box camp on W slope of Trinity summit) Comment
  UCD128605  Agoseris heterophylla K. Esau 1934-5-6 s.n. Humboldt above Fort Seward. 457 Comment
  CAS-BOT-BC127276  Agrostis exarata Joseph P. Tracy 1900-8-26 926 Humboldt Immediate vicinity of Eureka. 152 Comment
  CAS-BOT-BC127279  Agrostis exarata Joseph P. Tracy 1927-6-19 8193 Humboldt Northern Coast Region. Big Lagoon. 6 Comment
  CAS-BOT-BC127294  Agrostis exarata Joseph P. Tracy 1935-7-21 14111 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CAS-BOT-BC127300  Agrostis exarata Joseph P. Tracy 1927-7-17 8271 Humboldt Three Cabins. Western foothills of Chaparral Mountain. 457 Comment
  HSC76568  Agrostis exarata Teresa Prendusi 1981-7-24 495 Humboldt Near Whiteys Peak 1585 Comment
  HSC96959  Agrostis exarata H. E. Parks May 1934 1161 Humboldt Trindad. Comment
  POM160889  Agrostis exarata Joseph P. Tracy 1918-7-21 5085 Humboldt Around Humboldt Bay. Humboldt Hill 91 Comment
  POM247142  Agrostis exarata H. E. Parks 1935-06 5607 Humboldt Spruce Cove, Trinidad. Comment
  UC1145154  Agrostis exarata Joseph P. Tracy 1938-7-11 16050 Humboldt sand dunes near Samoa Humboldt Bay 6 Comment
  UC186906  Agrostis exarata Joseph P. Tracy 1904-7-31 2127 Humboldt sedge swamp Northern Coast Region, Eureka 0 Comment
  UC204711  Agrostis exarata Joseph P. Tracy 1918-7-5 5016 Humboldt White Thorn Valley, in dried up ditch Northern Coast Ranges, White Thorn Valley 304 Comment
  UCD52494  Agrostis exarata Joseph P. Tracy 1935-7-21 14111 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  SEINET10789958  Agrostis exarata Joseph P. Tracy 1900-9-2 Tracy 933 Humboldt Immediate vicinity of Eureka. Bed of frog pond. 0 Comment
  CAS-BOT-BC139495  Agrostis hallii Joseph P. Tracy 1929-7-4 8610 Humboldt Northern Coast Ranges. French Camp Ridge. 1066 Comment
  CAS-BOT-BC139496  Agrostis hallii Henry M. Pollard 1948-7-19 s.n. Humboldt River Road, Orleans to Red Cap Creek. Comment
  CAS-BOT-BC139499  Agrostis hallii Gordon H. True 1965-9-25 2656 Humboldt Klamath River 1.5 mile east of Orleans. 213 Comment
  CAS-BOT-BC139502  Agrostis hallii L. R. Abrams 1916-7-18 6128 Humboldt Arcata to Trinidad. Comment
  UC33734  Agrostis hallii Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5723 Humboldt Supply Creek Comment
  UC33755  Agrostis hallii Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6175 Humboldt near Ferndale Comment
  UCD52715  Agrostis hallii R. Tofsrud 1949-7-1 s.n. Humboldt between Scotia and Capetown. Comment
  CAS-BOT-BC139358  Agrostis idahoensis Joseph P. Tracy 1935-7-27 14303 Humboldt Trinity Summit. At McKay Prairie. 1584 Comment
  RSA10019  Agrostis idahoensis Joseph P. Tracy 1932-7-16 10608 Humboldt Klamath Mtns., Trinity Summit, Corral Prairie 1524 Comment
  RSA126092  Agrostis stolonifera Joseph P. Tracy 1902-7-4 1758 Humboldt [Unspecified] Comment
  UCD56339  Agrostis stolonifera A. H. Murphy 1947-7-30 s.n. Humboldt 1.2 mile west of Hydesville, along the Rohnerville Road. Comment
  UC526778  Agrostis variabilis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8948 Humboldt along summit South Fork Mountain (near Blake lookout); Northern Coast Ranges, along summit South Fork Mountain 1737 Comment
  HSC22532  Aira caryophyllea Dennis Anderson, J. P. Smith 1970-5-21 5085 Humboldt Scotia Bluffs, along N side of Eel River, in the vicinity of French Gulch Comment
  HSC8857  Aira caryophyllea Yarick 1960-8-3 Humboldt K & K. 7 mi, Krueger Cr. Comment
  UCD55715  Aira caryophyllea A. A. Beetle; G. L. Stebbins Jr. 1942-6-1 3620 Humboldt 2 miles north of Orleans, wooded banks of Klemath River. Comment
  UCD55761  Aira caryophyllea Linda M. Barker 1976-4-30 1411 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  SEINET10839747  Aira caryophyllea Harold E. Parks, Susan T. Parks Parks 5850 Humboldt Spruce Cove, Trinidad. Comment
  SEINET11683267  Aira caryophyllea K. S. Erdman 1970-1 4787 Humboldt Doleson hill Prairie, Bald Hills Rd, SE of Orick 853 Comment
  CAS-BOT-BC138338  Aira caryophyllea var. caryophyllea Doris K. Kildale 1926-5-2 1890 Humboldt Willow Creek Flat. Trinity River Valley. 152 Comment
  UC1103296  Aira praecox Joseph P. Tracy 1932-5-16 10103 Humboldt sand dunes near Samoa; Humboldt Bay 6 Comment
  UC1198269  Alisma plantago-aquatica Joseph P. Tracy 1930-10-12 9214 Humboldt Alton to Fortuna (on gravel bars); Eel River 15 Comment
  SEINET199675  Allium amplectens J. P. Tracy 1936-6-17 14975 a Humboldt Little Van Duzen River at hwy crossing 0 Comment
  HSC102062  Allium campanulatum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 964 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  CAS-BOT-BC464487  Allium campanulatum Joseph P. Tracy 1932-7-12 10479 Humboldt Trinity Summit, Head of Brett Hole 1828 Comment
  UC666926  Allium campanulatum Joseph P. Tracy 1930-7-18 9072 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  CDA2736  Allium triquetrum E. C. Whitney 1965-4-19 Humboldt Lamphire Road & nearby field, Arcata Bottoms. 0 Comment
  RSA167424  Allium unifolium Joseph P. Tracy 1950-6-25 18890 Humboldt Burr Valley. Comment
  CAS-BOT-BC476629  Allium unifolium M. S. Jessel 1931-5-2 s.n. Humboldt 6 miles from Garberville Comment
  JEPS56397  Allium unifolium Joseph P. Tracy 1917-6-17 4078 Humboldt bluff at Bucksport Northern Coast Ranges, Eureka, Bucksport 0 Comment
  UC176179  Allium unifolium Joseph P. Tracy 1913-6-10 4078 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  UC1197957  Alnus rhombifolia Joseph P. Tracy 1931-9-26 9699 Humboldt Berry's Northern Coast Ranges, Redwood Creek 274 Comment
  UC503097  Alnus rhombifolia Joseph P. Tracy 1930-8-3 9143 Humboldt Dinsmore's Ranch Northern Coast Ranges, Van Duzen River (on river opposite Buck Mt.) 670 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
  CAS-BOT-BC169378  Alnus viridis subsp. sinuata Joseph P. Tracy 1930-7-16 9080 Humboldt Cool damp place along stream. S Fork Mountain, near McKay Camp 1676 Comment
  HSC99022  Alnus viridis subsp. sinuata Cara Witte 2008-7-16 908 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  RSA152369  Alopecurus saccatus Joseph P. Tracy 1942-6-2 17096 Humboldt Local in wet field. Alton. 30 Comment
  UC1152032  Alopecurus saccatus Joseph P. Tracy 1951-6-21 19525 Humboldt back of Everett Beck house (formerly George Gray) Hydesville (bed of former Goose Lake) Comment
  CAS-BOT-BC13671  Ambrosia artemisiifolia H. M. Pollard 1947-8-27 s.n. Humboldt Near Orleans Comment
  HSC5662  Ambrosia chamissonis David Adams Oct 1960 Humboldt N bank of the Mad River near mouth 0 Comment
  HSC55606  Amelanchier pallida Overton, Butler 1979-7-23 9445 Humboldt Near Horse Mountain Mine, close to the town of Willow Creek 1295 Comment
  CAS-BOT-BC137865  Ammophila arenaria David D. Keck; J. Clausen 1935-6-16 3387 Humboldt Mouth of Little River. Comment
  CAS-BOT-BC137866  Ammophila arenaria David D. Keck; J. Clausen 1935-6-16 3387 Humboldt Mouth of Little River. Comment
  HSC23719  Anagallis arvensis Tim Baroni 1971-7-5 104 Humboldt 8 mi. E of Petrolia Comment
  UC1198610  Anagallis arvensis Joseph P. Tracy 1912-6-9 3676 Humboldt Alton Northern Coast Region, Alton 30 Comment
  POM286830  Anagallis arvensis Lyman Benson 1929-7-19 1585 Humboldt Weet Ranger St. Comment
  CAS-BOT-BC45132  Anaphalis margaritacea Carl B. Wolf 1927-8-30 1230 Humboldt 2 miles S of Petrolia on Matole River near point where road crosses river Comment
  HSC76343  Anaphalis margaritacea D. K. Imper 1981-7-21 890 Humboldt Near Table Bluff 38 Comment
  UC963845  Anaphalis margaritacea H. E. Parks and S. T. Parks 1943-8-1 24237 Humboldt along highway Stone Lagoon Comment
  UC13934  Anemone deltoidea W. C. Blasdale 1896-6-1 Humboldt in redwoods Freshwater Comment
Read comments
Sep 17 2012
  UC13935  Anemone deltoidea W. C. Blasdale 1896-6-1 Humboldt in redwoods Freshwater Comment
  CAS-BOT-BC391783  Anemone deltoidea W. R. Dudley 1899-6-19 s.n. Humboldt Scotia--Shady Run. Comment
  HSC59031  Anemone deltoidea M. A. Baker 1979-6-8 803 Humboldt Ladybird Johnson Memorial Grove, right of trail just after bridge over rd. Comment
  HSC56060  Angelica arguta G. L. Clifton, Griswold 1979-7-31 11697 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC71418  Angelica hendersonii J. M. DiTomaso 1980-7-29 1806 Humboldt Elkshead, 2 mi N of Trinidad Comment
  UC314600  Angelica hendersonii Joseph P. Tracy 1923-9-23 6560 Humboldt Northern Coast Region, Alton Alton Alton Alton; Northern Coast Region, Alton 30 Comment
  SD109161  Angelica lucida Joseph M. DiTomaso 1980-6-7 1572 Humboldt Elkshead, north of Trinidad. Comment
  HSC39723  Angelica tomentosa Thomas W. Nelson 1976-10-25 3276 Humboldt Along ridge N of Bear Creek 1463 Comment
  HSC56149  Angelica tomentosa G. L. Clifton, Terry Griswold 1979-8-1 11992 Humboldt Near Mill Creek, close to the town of Hoopa 1707 Comment
  CAS-BOT-BC271451  Anisocarpus madioides Henry M. Pollard 1948-7-23 s.n. Humboldt Perch Creek canyon, near Orleans Comment
  UC1199376  Anthemis cotula Joseph P. Tracy 1918-7-1 4962 Humboldt along Eel River from South Fork to Scotia Eel River 60 Comment
  HSC10103  Anthoxanthum occidentale E. W. Styskel 1964-3-7 53 Humboldt 1.5 mi. SE of Redcrest along Hwy. 101 Comment
  CAS-BOT-BC137739  Anthoxanthum odoratum David D. Keck 1948-7-2 6010 Humboldt 1.5 mile esat of Freshwater (Garfield), on Kneeland Road. Comment
  CHSC91538  Anthoxanthum odoratum G. Douglas Barbe; T. C. Fuller 1974-6-17 1848 Humboldt North Coast Ranges. At 707 'L' Street, Eureka, behind CSAA (Calif State Automobile Assoc.) district office. Comment
  HSC24616  Anthoxanthum odoratum R. D. Modafferi 1965-4-8 34 Humboldt 1.3 mi. south of Trinidad on old Highway 101. 305 Comment
  HSC8942  Anthoxanthum odoratum Gerald T. Rood 1962-5-6 11 Humboldt Kneeland Road ca. 1 mi. W of Barry Rd. Comment
  UCD56165  Anthoxanthum odoratum A. H. Murphy 1948-5-3 s.n. Humboldt 1.5 mile north of Loleta, Table Bluff, H. Perrott's Ranch. Comment
  UC642322  Anthriscus caucalis H. E. Parks and Joseph P. Tracy 1927-4-24 7927 Humboldt Eureka; railroad station 6 Comment
  JEPS83360  Antirrhinum vexillocalyculatum subsp. breweri David M. Thompson 1983-6-26 354 Humboldt 9.1 mi s Kneeland Road junction with Mountain View Road (on Kneeland Road) Comment
  UC1196740  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1925-7-12 7203 Humboldt w of South Fork of Trinity River mouth 304 Comment
  HSC57887  Apocynum androsaemifolium Overton, Butler 1979-7-31 11438 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UC725497  Apocynum cannabinum A. A. Heller 1923-7-10 13794 Humboldt Eel R. between Scotia and Pepperwood; Eel R Comment
  JEPS49817  Apocynum cannabinum Joseph P. Tracy 1932-6-14 10148 Humboldt Trinity R. Valley, at Willow Creek Trinity R. Valley, Willow Creek 152 Comment
  HSC45491  Aquilegia formosa var. formosa Maralyn O'Meara 1972-6-8 102 Humboldt Along Bald Hills Rd. 18 mi. E of junction with Hwy. 101 Comment
  POM118664  Aquilegia formosa var. truncata Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville. Comment
  CDA38203  Aralia californica T. Gallion & M. S. Bergseng 1959-7-23 2816 Humboldt Red Gap Road, 3 miles east of Hoopa. 0 Comment
  RSA96051  Aralia californica E. K. Balls 1954-8-5 19754 Humboldt Grown in Botanic Garden, Prop. No. 5123, origin of material being plants coll. by C. B. Wolf, March 2, 1941, North Coast Range, Bull Creek to Petrolia Rd., 12 mi. w. of Redwood Hwy Comment
  HSC98739  Arbutus menziesii Cara Witte 2008-5-26 661 Humboldt Along Forest Service Road 5N10. 1/2 mile south of intersection with Friday Ridge Road. 1487 Comment
  SEINET11972424  Arbutus menziesii J. P. Tracy 1951-1 19401 Humboldt near Ashfield Ridge, Kneeland Prairie 762 Comment
  UC180189  Arctium minus Joseph P. Tracy 1914-10-4 4631 Humboldt Table Bluff Northern Coast, Humboldt Bay 0 Comment
  SEINET202625 Image available Arctium minus Joseph P. Tracy 1948-9-20 18223 Humboldt Halfway between Hoopa and Weitchpec Comment
  UC585943  Arctostaphylos Joseph P. Tracy 1933-8-6 12958 Humboldt French Camp Ridge 1066 Comment
  UC585953  Arctostaphylos Joseph P. Tracy 1932-7-18 10722 Humboldt head of Brett Hole Trinity Summit 1828 Comment
  BLMAR276  Arctostaphylos canescens Jennifer Anthony-Wheeler 1999-7-30 276 Humboldt Lacks Creek 1219 Comment
  CAS-BOT-BC23729  Arctostaphylos columbiana Joseph P. Tracy 1934-3-11 13152 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC23778  Arctostaphylos columbiana P. C. Everett; E. K. Balls 1959-10-26 23975 Humboldt 4 mi. SE from Honeydew, along Old Coast road to Ettersburg. 457 Comment
  CAS-BOT-BC23816  Arctostaphylos columbiana Joseph P. Tracy 1936-8-24 15171 Humboldt Fickle Hill, 6 mi. SE of Arcata 609 Comment
  CHSC39441  Arctostaphylos columbiana B. A. Stein 1981-11-1 568 Humboldt US Hwy 101, 2 miles north of Patrick Point. 60 Comment
  UC1198651  Arctostaphylos columbiana Joseph P. Tracy 1936-2-22 13137 Humboldt vicinity of Trinidad Northern Coast Region 60 Comment
  UC484049  Arctostaphylos columbiana Carl B. Wolf 1930-10-29 1784 Humboldt Old Coast Rd 7 mi s Honeydew P.O. 304 Comment
  UC585911  Arctostaphylos columbiana Joseph P. Tracy 1927-8-14 8331 Humboldt Big Lagoon 152 Comment
  CHSC85572  Arctostaphylos glandulosa L. P. Janeway 2003-7-30 7948 Humboldt High North Coast Ranges. Along Friday Ridge Road, at south end of Friday Ridge, 1.0 km (air) east-southeast of Friday Camp. Roadside. 1359 Comment
  HSC71673  Arctostaphylos manzanita M. A. Baker 1980-6-26 2386 Humboldt Near Sims Creek 610 Comment
  RSA633023  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 s.n. Humboldt Highway 96, 15 km north of Willow Creek. 100 Comment
  UC1225895  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1942-7-18 17285 Humboldt Garberville 152 Comment
  UCD52854  Arctostaphylos nevadensis subsp. knightii Roman Gankin; W. R. Hildreth 1967-10-26 1175 Humboldt 21.4 miles east of U.S. 101 on Bald Hills Road from Orick; French Camp Ridge. Comment
  CAS-BOT-BC46631  Arctostaphylos patula Joseph P. Tracy 1935-7-14 14063 Humboldt Horse Mountain. 1432 Comment
  HSC40550  Arctostaphylos patula Thomas W. Nelson, Jane P. Nelson 1976-5-23 2524 Humboldt SW facing slopes 1666 Comment
  HSC54211  Arctostaphylos patula Griswold, Butler 1979-7-12 7258 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  SEINET2028698 Image available Arctostaphylos tracyi H. E. Parks 1931-12-1 4950 Humboldt Hobson's Trinidad 200 Comment
  CAS-BOT-BC47216  Arctostaphylos uva-ursi Joseph P. Tracy 1940-10-3 s.n. Humboldt Near Samoa, on Humboldt Bay. 6 Comment
  UC1196870  Arctostaphylos uva-ursi Joseph P. Tracy 1937-9-26 15685 Humboldt near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC1225931  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17498 Humboldt 1 block s Harris (at L St.); Eureka 45 Comment
  UC154201  Arctostaphylos uva-ursi Harley P. Chandler May, 1901 1193 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UCD52031  Arctostaphylos uva-ursi T. I. Storer 1931-7-1 2217 Humboldt Samoa, Humboldt Co. Comment
  SEINET11987161  Arctostaphylos uva-ursi var. coactilis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4071 Humboldt Strybing Arboretum, Golden Gate Park, San Francisco, orig. probably from near Samoa Comment
  HSC67134  Arctostaphylos viscida J. P. Smith, J. O. Sawyer 1973-5-12 6696 Humboldt 9.6 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC70967  Arctostaphylos viscida R. York 1980-5-17 540 Humboldt Near Le Perron Peak 1066 Comment
  UC1198608  Armeria maritima subsp. californica Joseph P. Tracy 1905-4-30 2179 Humboldt Humboldt Bay Northern Coast Region (sand dunes of ocean beach) Comment
  SEINET11837502  Arnica cordifolia H. P. Chandler 1901-1 1400 Humboldt Klamath River 244 Comment
  BLMAR189  Arnica discoidea Donald Hazlett 1994-6-7 189 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CAS-BOT-BC82433  Arnica discoidea Clarence R. Quick 1959-7-24 59 -31 Humboldt Bee Mt., ca. 12 miles southwest of Orleans Comment
  HSC4693  Arnica discoidea J. P. Tracy 1935-7-23 14154 Humboldt Trinity Summit; lower end of Brett Hole Comment
  RSA43686  Arnica discoidea H. M. Pollard 1948-7-21 s.n. Humboldt Near Orleans. Comment
  HSC48988  Arnica discoidea M. A. Baker 1979-5-25 763 Humboldt Comment
  HSC98002  Arnica discoidea Cara Witte 2007-7-25 576 Humboldt Forest Service Road 5N10. 2.5 miles east of intersection with National Forest 1. 1327 Comment
  HSC100423  Arnica parviflora Carl C. Marshall Jun 1886 281 Humboldt Mud Spring Camp. Comment
  HSC8986  Arrhenatherum elatius W. F. Cartwright 1965-5-20 79 Humboldt 5 mi. S of Arcata on Old Arcata Road Comment
  UC1103324  Arrhenatherum elatius Joseph P. Tracy 1927-7-4 8237 Humboldt North Coast Ranges, Iaqua, Lone Star Creek Lone Star Creek Lone Star Creek; North Coast Ranges, Iaqua, Lone Star Creek 609 Comment
  HSC58342  Artemisia douglasiana Overton, Butler 1979-8-2 12667 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  SBBG7639  Artemisia douglasiana H. and M. Dearing 1939-5-26 3452 Humboldt N of Arcata Comment
  UCD129380  Artemisia douglasiana James Payne Smith Jr.; Advanced Plant Taxonomy Class 1971-10-9 5032 Humboldt Mad River above the Fish Hatchery. Comment
  SEINET11842962  Artemisia douglasiana F. H. Utech 1986-1 86 -412 Humboldt Cape Mendocino, along Pacific Ocean 6 Comment
  JEPS37048  Artemisia dracunculus W. L. Jepson 1932-7-28 16437 Humboldt Dyerville Comment
  CAS-BOT-BC90869  Artemisia pycnocephala J. P. Tracy 1909-7-18 3023 Humboldt Sand hills of ocean beach at Samoa, opp. Eureka Comment
  UC275467  Artemisia pycnocephala H. E. Parks and Joseph P. Tracy 1925-6-26 7135 Humboldt Samoa Sand Dunes Humboldt Bay, Samoa Sand Dunes 15 Comment
  SEINET10725832  Artemisia suksdorfii Harold E. Parks Parks 24178 Humboldt Common on sand dunes near ocean. Comment
  HSC49144  Asarum caudatum J. O. Sawyer 1977-4-23 2840 Humboldt Dagsaw Spring on road to Onion Mtn. Comment
  HSC58082  Asarum caudatum G. L. Clifton, Griswold 1979-8-1 11986 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  SEINET3873461  Asarum caudatum Richard R. Halse 2011-3-25 8163 Humboldt Along U.S. Hwy 101 ca 2.8 miles south of Stafford, near Exit 674.; 0 74 Comment
  UC6180  Asarum caudatum J. Mello Feb 1897 Humboldt Eureka Comment
  UCSB26616  Asarum caudatum Havlik, Neil 1968-8-20 Humboldt On the Ferndale-Capetown Road, about 5 miles from Ferndale 457 Comment
  UCR111208  Asarum hartwegii D. E. Anderson 1965-5-1 3566 Humboldt Along Hwy 96, 1.9 mi. north of Willow Creek. 162 Comment
  HSC59465  Asclepias cordifolia M. A. Ericksen 1979-5-15 291 Humboldt Center of Tish-Tang Campground Comment
  RSA167427  Asclepias cordifolia Joseph P. Tracy 1950-7-15 19043 Humboldt Trinity River, E side, 1 mile N of mouth of Willow Creek. Comment
  HSC100386  Aspidium aculeatum var. californicum Carl C. Marshall Jun 1887 483 Humboldt Jewett Creek. Comment
  HSC1053  Aspidotis densa Elrid H. Spinas 1948-5-22 41 Humboldt Horse Mtn. Comment
  HSC97473  Aspidotis densa Cara Witte 2007-5-23 91 Humboldt Approximately 2 miles from intersection with 4N70 (Grouse Mountain Lookout Road) on 4N32. 1395 Comment
  UC211498  Aspidotis densa Chesnut and Drew 1888-7-9 Humboldt Kneeland Prairie Comment
  UC1795051  Aspidotis densa Ruth Kirkpatrick 2003-8-2 1177 Humboldt Kneeland Airport, E-facing slope to E of runway Comment
  CDA10236  Aster chilensis E. C. Whitney 1963-9-17 Humboldt Lamphere Road, Arcata. 0 Comment
  HSC14581  Astragalus rattanii var. rattanii Jana Kattenhorn 1970-10-28 145 Humboldt Mad River at the mouth of Lindsey Creek. North Bank Rd. off Hwy. 299 Comment
  CHSC118459  Astragalus umbraticus Courtney Wilson; Matt Groberg, Bob Meinke 2011-6-30 Humboldt On Green Diamond Resourse Company private land. Roadside edge on west slope of French Camp Ridge. 853 Comment
  JEPS118178  Astragalus umbraticus Dean W. Taylor 2009-7-14 20674 Humboldt vicinity Lake Prairie, reached via Guy Kerr Ranch Road off Snow Camp Road 1133 Comment
  UC179937  Astragalus umbraticus Joseph P. Tracy 1914-7-5 4575 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mt., betw High Prairie-Snow Camp 1219 Comment
  CAS-BOT-BC69523  Athyrium filix-femina subsp. cyclosorum Doris K Niles 1948-4-17 3 Humboldt Peugh Road Creek, 1 mi. e. of Loleta. Comment
  RSA181910  Athyrium filix-femina subsp. cyclosorum W. L. Jepson 1932-8-8 16529 Humboldt Weott, hill above Comment
  HSC41335  Athyrium filix-femina var. cyclosorum Brad Klipfel 1974-9-7 565 Humboldt Horse Mtn., E fork of Willow Creek. Comment
  JEPS35140  Athyrium filix-femina var. cyclosorum W. L. Jepson 1932-8-8 16529 Humboldt hill above Weott Comment
  HSC95384  Atriplex prostrata Andrea Pickart 2002-8-8 191 Humboldt Arcata Marsh at end of I st. 0 Comment
  HSC23467  Atriplex prostrata Wilbur Peterson 1971-11-1 407 Humboldt Salt Marsh of Humboldt Bay neat Jct. of G St. and Hwy. 101 in Arcata. Comment
  HSC93742  Atriplex prostrata Gordon Leppig, Sylvia Leppig 1998-9-17 1100 Humboldt Arcata Marsh and Wildlife Sanctuary, W of railroad trestle 2 Comment
  RSA246922  Atriplex subspicata R. F. Thorne, P. Everett 1965-8-8 35275 Humboldt N edge of Eureka, E of Hwy 101. 3 Comment
  UCD56296  Avena fatua A. H. Murphy 1951-4-2 s.n. Humboldt Side of Highway 101 / mile south of Phillipsville. Comment
  CHSC26753  Baccharis douglasii M. S. Taylor 1977-7-5 1428 Humboldt Around bridge over Eel River at the turnoff from Hwy 101 to Ferndale, in Fernbridge. Comment
  RSA134603  Baccharis pilularis Percy C. Everett, E. K. Balls 1959-10-25 23968 Humboldt 1.5 miles from Ferndale on Old Coast Road to Capetown Comment
  HSC28931  Baccharis pilularis subsp. consanguinea Diane Johnson 1972-11-14 Humboldt Butler Valley near Maple Creek Comment
  UC1222969  Balsamorhiza deltoidea Joseph P. Tracy 1950-6-15 18792 Humboldt 7 mi n, at Mail Ridge Harris Comment
  UC184173  Barbarea orthoceras Joseph P. Tracy 1913-6-14 4119 Humboldt Dinsmore's Ranch; in Valley of Van Duzen River opposite Buck Mountain 762 Comment
  UC562693  Barbarea orthoceras Joseph P. Tracy 1935-7-25 14239 Humboldt lower end Brett Hole; Trinity Summit 1584 Comment
  HSC5186  Bellis perennis R. E. Hafenfeld 1965-5-9 41 Humboldt 1/2 mi. N Home Creek near Bold Bluff Beach Rd. Comment
  CAS-BOT-BC48154  Bensoniella oregona Joseph P. Tracy 1923-6-24 6363 Humboldt Bald Mountain - in cold wet meadow near high prairie 1066 Comment
  CAS-BOT-BC48155  Bensoniella oregona Joseph P. Tracy 1939-7-9 16327 Humboldt Snow Camp in moist ground around meadow. 1402 Comment
  HSC31759  Berberis aquifolium Timothy B. Devine 1974-5-4 316 Humboldt Junction of Hwy. 299 and Titlow Hill Rd., E facing slope 875 Comment
  HSC38080  Berberis aquifolium Thomas W. Nelson, James Nelson 1976-5-30 2627 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC74649  Berberis nervosa M. A. Baker 1980-5-17 1207 Humboldt Near Le Perron Peak 792 Comment
  CDA24403  Berberis pinnata E. C. Whitney 1967-4-1 Humboldt Bear River, Ferndale. 0 Comment
  BLMAR413  Bidens cernua Clara Sander 2007-8-22 413 Humboldt South Spit, east side of road near "lone tree" 9 Comment
  UCSB8245  Blechnum spicant Robbins, G. 1936-8-1 Humboldt Near Strong's Station. Comment
  RSA465618  Boisduvalia densiflora var. densiflora H. M. Pollard 1948-8-12 s.n. Humboldt Near Orleans. Comment
  UCD140029  Bolboschoenus maritimus subsp. paludosus Gordon Leppig 1998-6-25 851 Humboldt Route 101 milemarker 81.60. East side of highway. 2 Comment
  HSC99638  Boschniakia strobilacea Gail Newton 1980-7-22 1656 Humboldt Near Devils Backbone 1554 Comment
  CDA42735  Botrychium multifidum T. C. Fuller 1961-9-28 7054 Humboldt 1.5 miles south of Samoa. 0 Comment
  HSC76264  Boykinia major Denis Kearns 1981-7-23 410 Humboldt Near Whiteys Peak. 1524 Comment
  HSC20179  Boykinia occidentalis J. R. Lippincott 1967-7-16 7 Humboldt Near N Fork Mad River bridge 152 Comment
  CAS-BOT-BC106296  Brickellia californica Carl B. Wolf 1927-8-27 1158 Humboldt On the Klamath River 2 mi. below the Salmon River Comment
  HSC32526  Brickellia californica Thomas W. Nelson 1973-9-3 1135 Humboldt McKeown Ranch N of Dinsmore Comment
  UC1173667  Brickellia greenei Joseph P. Tracy 1939-8-16 16401 Humboldt Horse Mountain 1432 Comment
  UC581799  Brickellia greenei Joseph P. Tracy 1935-7-30 14361 Humboldt Salmon Summit 1767 Comment
  CAS-BOT-BC145430  Briza maxima P. B. Kennedy 1929-6-13 s.n. Humboldt Etterburg. Comment
  SEINET9806296 Image available Briza maxima Unknown 2007-6-19 Humboldt Arcata, CA Comment
  HSC48476  Briza minor J. P. Smith, J. O. Sawyer, J. Cole 1978-5-21 9931 Humboldt Ishi Pishi Rd., 2.5 mi. from its junction with Hwy. 96 in Orleans 213 Comment
  RSA183611  Briza minor G. Bos 1965-5-15 252 Humboldt 8 miles west of Berry Summit along U.S. 299. 762 Comment
  HSC48787  Brodiaea elegans subsp. elegans Brad Klipfel 1974-7-23 478 Humboldt Along Titlow Hill Rd. Comment
  UC666901  Brodiaea elegans subsp. elegans Joseph P. Tracy 1930-6-15 8759 Humboldt on grassy places Alder Point 152 Comment
  JEPS7624  Brodiaea stellaris Rimo Bacigalupi with L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-13 3406 Humboldt along state Hwy 36 5 mi e Bridgeville Comment
  BLMAR14  Bromus carinatus Brad Barr June, 1982 14 Humboldt King range, above randall creek on ridgetop Comment
  HSC9142  Bromus carinatus var. carinatus W. F. Nickel 1965-3-17 Humboldt Humboldt State College campus behind College Elementary School. Comment
  UC1103276  Bromus carinatus var. carinatus J. P. Tracy 1900-5-28 817 Humboldt immediate vicinity of Eureka 0 Comment
  UC1145159  Bromus carinatus var. carinatus Joseph P. Tracy 1937-5-31 15318 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  UC1152025  Bromus carinatus var. carinatus Joseph P. Tracy 1951-6-26 19570 Humboldt vicinity of Twin Lakes (Snow Camp and Twin Lakes trip) Comment
  UC552687  Bromus carinatus var. carinatus Joseph P. Tracy 1935-6-23 13982 Humboldt Northern Coast Ranges, French Camp Ridge French Camp Ridge; Northern Coast Ranges, French Camp Ridge 1066 Comment
  UCD59205  Bromus carinatus var. marginatus A. H. Shunk 1923-7-12 24 Humboldt Briceland. Comment
  UC185779  Bromus carinatus var. maritimus Joseph P. Tracy 1912-6-9 3658 Humboldt Alton; Northern Coast Ranges, Alton 30 Comment
  UC34027  Bromus catharticus Henry Melde 1902-2-8 Humboldt Eureka Comment
  SEINET200636 Image available Bromus diandrus Joseph P. Tracy 1904-5-1 2042 Humboldt Eureka 0 Comment
  UC526925  Bromus hordeaceus Joseph P. Tracy 1933-6-25 12622 Humboldt 2 to 5 mi e of South Fork Eel River (along Eel River, Camp Grant); Eel River, Camp Grant 45 Comment
  SEINET200662 Image available Bromus hordeaceus subsp. hordeaceus Joseph P. Tracy 1923-6-20 6327 Humboldt Chamise Mountain near Shelter Cove 305 Comment
  UC1541517  Bromus laevipes Harold E. Parks 1934-6-3 4953 Humboldt 2 mi w of Bridgeville 152 Comment
  UCR45821  Bromus marginatus Kenneth Clark 1980-5-10 643 Humboldt Point Delgada Q., Shelter Cove, coastal bluffs of Point Delgada 3 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
  UC526729  Bromus tectorum Joseph P. Tracy 1927-5-14 7998 Humboldt near the South Fork (Northern Coast Ranges, Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC58808  Bromus vulgaris G. L. Clifton 1979-7-31 11871 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC1145187  Bromus vulgaris Joseph P. Tracy 1949-6-20 18317 Humboldt 6 mi se of Arcata (Fickle Hill); Fickle Hill 609 Comment
  UCD114857  Cakile edentula M. Barbour 1969-9-4 s.n. Humboldt West of Table Bluff (about 10 miles south of Eureka). Comment
  UC902001  Cakile maritima Joseph P. Tracy 1948-6-10 18062 Humboldt Trinidad, beach w of town Trinidad 3 Comment
  RSA246935  Cakile maritima var. maritima R. F. Thorne, P. Everett 1965-8-9 35333 Humboldt Clam Beach County Park. 3 Comment
  UC1145051  Calamagrostis foliosa Joseph P. Tracy 1936-6-9 14899 Humboldt at bridge 3 mi e Petrolia (bluff bank of river); Mattole River 30 Comment
  HSC17628  Calandrinia ciliata D. E. Anderson 1963-5-19 2461 Humboldt Barry Rd., Kneeland Comment
  HSC58002  Calocedrus decurrens G. L. Clifton, Griswold 1979-7-31 11787 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  JEPS17804  Calochortus amabilis Joseph P. Tracy 1916-6-19 4711 Humboldt Laribee Creek, at Bosworth's Northern Coast Ranges 457 Comment
  UC1197698  Calochortus amabilis Mrs. Eri Eaton 1911-5-27 Humboldt near South Fork of Eel River; Phillipsville 304 Comment
  UC667131  Calochortus coeruleus Joseph P. Tracy 1932-7-12 10483 Humboldt Head of Brett Hole Trinity Summit 1828 Comment
  HSC34998  Calochortus tolmiei Thomas W. Nelson 1975-5-24 1879 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC98542  Calochortus tolmiei Cara Witte 2008-6-9 699 Humboldt Board Camp Mountain. Forest Serivce Road 4E27. Fork Camp. 1509 Comment
  RSA183584  Calochortus tolmiei D. E. Anderson 1965-5-15 3716 Humboldt Along Hw. 96, 1.9 miles north of Willow Creek. Comment
  UC1197673  Calochortus tolmiei Joseph P. Tracy 1921-4-24 5466 Humboldt Phillipsville, facing South Fork of Eel River Northern Coast Ranges 121 Comment
  CAS-BOT-BC494354  Calochortus tolmiei Doris K. Kildale 1929-4-27 7451 Humboldt Willow Creek. Salya road, along Trinity River. 3 miles north of Willow Creek. Comment
  HSC89585  Calochortus tolmiei M. Roantree 1985-5-30 70 Humboldt W side of Trinidad Head on an outcropping W of trail Comment
  UC667122  Calochortus vestae Joseph P. Tracy 1930-6-15 8760 Humboldt Dobbyn Creek 152 Comment
  RSA168945  Calochortus vestae Joseph P. Tracy 1950-6-23 18868 Humboldt Dobbyn Creek, 3 miles northeast of Alderpoint. 213 Comment
  UC1222581  Caltha biflora Joseph P. Tracy 1951-6-14 19408 Humboldt Snow Camp. 1402 Comment
  HSC75826  Caltha leptosepala Bill Copeland 1980-6-26 323 Humboldt Near Snow Camp Lake 1372 Comment
  SEINET2474864 Image available Caltha leptosepala var. biflora Joseph P. Tracy 1930-1 8971 Humboldt South Fork Mountain, at McKay Camp 1680 Comment
  HSC65477  Calypso bulbosa M. A. Baker 1980-6-7 1800 Humboldt Near Brush Mtn. 1128 Comment
  HSC16567  Calypso bulbosa W. R. Rogers 1967-3-19 227 Humboldt Bar W Ranch, 1 mi. W of Bridgeville Comment
  HSC30130  Calypso bulbosa J. D. Ackerman, B. Ackerman 1974-4-12 169 Humboldt 3 mi. E of Kneeland post office on road to Butler Valley and Maple Creek Comment
  CDA39889  Calystegia silvatica subsp. disjuncta Thomas Nelson 1976-8-1 3166 Humboldt At the intersection of 11th and B Streets, Arcata. 0 Comment
  HSC1977  Calystegia soldanella D. E. Anderson, N. D. Dennis 1965-6-8 103 Humboldt Samoa Peninsula along the W side of Humboldt Bay Comment
  RSA394824  Calystegia soldanella B. C. Templeton 1931-10-15 s.n. Humboldt Eureka Comment
  CDA39887  Calystegia soldanella B. F. Kemp May 1958 1202 -58 Humboldt Mouth of Mad River. 0 Comment
  SEINET3991735  Camassia quamash Unknown 1910-5-15 Humboldt Immediate vicinity of Eureka. 152 Comment
  CAS-BOT-BC493384  Camassia quamash subsp. linearis M. S. Jussel 1931-5-1 s.n. Humboldt On road to Garberville Comment
  HSC64502  Camissonia cheiranthifolia J. P. Smith 1971-10-6 4944 Humboldt End of Murray Rd. in McKinleyville. Comment
  SEINET12194288  Camissonia cheiranthifolia F. H. Utech 1986-1 86 -401 Humboldt Cape Mendocino, along Pacific Ocean 5 Comment
  RSA245215  Camissonia cheiranthifolia subsp. cheiranthifolia T. M. Mingo 1965-05 s.n. Humboldt Clam Beach Comment
  RSA0065040  Camissonia cheiranthifolia subsp. cheiranthifolia Marcus E. Jones 1931-8-2 s.n. Humboldt McKinleyville. [State incorrect listed as Oregon] Comment
  UC665629  Camissoniopsis cheiranthifolia subsp. cheiranthifolia H. E. Parks August, 1941 24180 Humboldt sand dunes Little River State Park Comment
  RSA120762  Campanula prenanthoides S. S. Tillett 1956-7-6 612 Humboldt S. slope along Bar Shanty Road, 5 mi. from Orleans. 488 Comment
  SEINET10873292  Campanula prenanthoides Etienne 1972-9-4 Etienne s.n. Humboldt Lumber Rd to Klamath R. Ca. 8 mi inland 1 mi. N of Co. line 100 Comment
  SEINET10463757  Campanula scouleri Griswold 1979-7-11 GRISWOLD 6946 Humboldt Near Snow Camp Mountain, on the Iagua Buttes quadrangle, close to the town of Willow Creek 1320 Comment
  UC275268  Cardamine breweri Joseph P. Tracy 1923-6-24 6364 Humboldt near High Prairie (Bald Mountain); Northern Coast Ranges, , nr High Prairie 1066 Comment
  CAS-BOT-BC37423  Cardamine californica Doris K. Kildale 1927-1-23 2974 Humboldt Blue Slide in the Van Duzen River. Comment
  HSC6697  Cardamine californica Lincoln Constance 1934-5-26 651 Humboldt Bull Creek Region; N Dyerville Flat grove near Founder's Tree 49 Comment
  UC162881  Cardamine californica J. P. Tracy 1905-3-12 2150 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  UC492255  Cardamine californica Joseph P. Tracy 1927-5-22 8070 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC98634  Cardamine californica var. californica Cara Witte 2008-7-16 918 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  JEPS53368  Cardamine californica var. integrifolia Joseph P. Tracy 1918-4-21 4878 Humboldt road to Kneeland Prairie (around Humboldt Bay); Northern Coast Ranges, Humboldt Bay 152 Comment
  HSC79513  Cardamine oligosperma Kenneth Clark 1980-3-2 512 Humboldt Middle alluvial terrace, Dead Man's Gulch 37 Comment
  SEINET10932251  Cardionema ramosissimum Mary Susan Taylor 1990-8-22 Taylor 6085 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  CHSC43008  Carex aquatilis var. dives L. P. Janeway 1987-7-30 2533 Humboldt At Dry Lagoon. 3 Comment
  UC562628  Carex athrostachya Joseph P. Tracy 1904-7-18 13426 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC1152067  Carex athrostachya Joseph P. Tracy 1950-7-16 18990 Humboldt Burr Valley, lower end Buck Mountain, NW slope 1066 Comment
  CHSC45707  Carex barbarae L. P. Janeway 1984-4-28 750 Humboldt Along W side of S Fk Eel River at Butte Cr; across the river from Miranda. 67 Comment
  CAS-BOT-BC19215  Carex barbarae Joseph Prince Tracy 1929-6-23 8606 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  HSC36160  Carex bolanderi Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-20 2051 Humboldt FS Rd. 2S08, below Alder Springs Comment
  RSA337439  Carex buxbaumii Robert F. Thorne, Percy C. Everett 1965-8-7 35197 Humboldt Big Lagoon, south end. 2 Comment
  HSC76383  Carex concinnoides L. P. Janeway 1982-6-20 12 Humboldt On ridge 1 mi. SE of Horse Mtn. along FS Rd. 6N36 1384 Comment
  CAS-BOT-BC530907  Carex debiliformis H. N. Bolander no date on label 6477 Humboldt Red Mountain Comment
  CAS-BOT-BC34973  Carex densa Joseph Prince Tracy 1936-6-3 14847 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC1103112  Carex deweyana subsp. leptopoda Joseph P. Tracy 1933-6-2 12527 Humboldt Shively 60 Comment
  UC1103128  Carex echinata Joseph P. Tracy 1935-7-14 14085 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  CAS-BOT-BC20078  Carex echinata Joseph Prince Tracy 1930-7-16 8986 Humboldt Northern Coast Ranges. South Fork Mountain. McKay Camp. 1676 Comment
  UC203893  Carex echinata subsp. phyllomanica Joseph P. Tracy 1918-7-21 5083 Humboldt around Humboldt Bay; Northern Coast Ranges, Humboldt Hill 91 Comment
  CAS-BOT-BC19961  Carex exsiccata Joseph Prince Tracy 1927-7-17 8277 Humboldt North Coast Ranges. Three Cabins; grassy slopes on lower western foothills of Chaparral Mountain. 457 Comment
  HSC69874  Carex feta Thomas W. Nelson 1978-5-28 4099 Humboldt McKeown Ranch, N of Dinsmore 762 Comment
  CAS-BOT-BC20012  Carex feta H. D. Ripley; R. C. Barneby 1945-6-16 6823 Humboldt NW of Harris. 883 Comment
  HSC43477  Carex fracta Thomas W. Nelson, Jane P. Nelson 1977-7-4 3612 Humboldt Along road N from Alder Springs 1524 Comment
  HSC7196  Carex fracta E. Hunt 1949-5-17 9 Humboldt S Fork Mtn. Comment
  UC562625  Carex gynodynama Joseph P. Tracy 1936-6-21 14991 Humboldt Iaqua. Comment
  CAS-BOT-BC22316  Carex harfordii Joseph Prince Tracy 1927-7-17 8279 Humboldt Three Cabins; grassy slopes on lower western foothills of Chaparral Mountain. Edge of pond. 457 Comment
  HSC76807  Carex harfordii L. P. Janeway 1982-6-17 10 Humboldt 305 Comment
  HSC76780  Carex hendersonii L. P. Janeway 1983-5-29 320 Humboldt Along Jolly Giant Creek, E of HSU campus 61 Comment
  UC303010  Carex hendersonii Joseph P. Tracy 1926-6-13 7598 Humboldt Blue Lake Northern Coast Ranges 152 Comment
  CAS-BOT-BC28164  Carex hoodii Joseph Prince Tracy 1932-7-11 10410 Humboldt Trinity Summit, Open places at Corral Prairie. Comment
  CAS-BOT-BC7791  Carex laeviculmis Doris K. Kildale 1931-5-10 10674 Humboldt Snow Camp Comment
  CAS-BOT-BC31263  Carex lenticularis var. impressa Joseph Prince Tracy 1932-7-14 10555 Humboldt Trinity Summit, Corral Prairie, in wet meadow. 1584 Comment
  CHSC93148  Carex lenticularis var. impressa Thomas W. Nelson; Jane P. Nelson 1987-6-11 8584 Humboldt North Coast Ranges. At trail head and along trail to Grogans Hole. Comment
  UC562251  Carex lenticularis var. impressa Joseph P. Tracy 1932-7-14 10555 Humboldt Corral Prairie Trinity Summit 1584 Comment
  SEINET10710158  Carex leptopoda David Castaner 1984-5-28 Castaner 8066 Humboldt Patrick State Park. Redwood Forest area. Comment
  UC562321  Carex lyngbyei Joseph P. Tracy 1935-6-8 13945 Humboldt around Humboldt Bay; Northern Coast Region 6 Comment
  UC249751  Carex mendocinensis Joseph P. Tracy 1924-6-15 6697 Humboldt Northern Coast Ranges. Near Ruby Creek, on the Willow Creek highway. Comment
  RSA0014503  Carex mendocinensis Joseph P. Tracy 1926-6-6 7576 Humboldt Hoopa Mountain. On road west from Hoopa Valley. 915 Comment
  HSC70470  Carex microptera Gail Newton 1980-7-20 1639 Humboldt Near Bell Swamps 1426 Comment
  HSC45437  Carex microptera Thomas W. Nelson, Jane P. Nelson 1978-7-2 4401 Humboldt Off FS 2S08 near Pine Mtn., road to Lost Lake 1463 Comment
  SEINET10850491  Carex nudata Harley P. Chandler Chandler 1235 Humboldt Redwood Belt. Comment
  CHSC2106  Carex obnupta M. Anthony 1937-5-15 Humboldt Humboldt State College. Comment
  CHSC84707  Carex obnupta L. P. Janeway 2003-7-27 7931 Humboldt North Coast. West edge of Dry Lagoon. 4 Comment
  JEPS80016  Carex obnupta Joseph P. Tracy 1906-5-13 2459 Humboldt Ocean Beach at Humboldt Bay Northern Coast Region, Humboldt Bay Comment
  RSA91660  Carex obnupta F. W. Peirson 1941-7-28 13108 Humboldt Road to Patrick Point. Comment
  UC562241  Carex obnupta Joseph P. Tracy 1936-6-9 14892 Humboldt 3 mi e Cape Mendocino; Cape Ridge 243 Comment
  UCD140712  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
  SEINET10883539  Carex ormantha Joseph P. Tracy 1932-7-14 Tracy 10567 Humboldt Corral Prairie in wet meadow. 1585 Comment
  POM160309  Carex ovalis Joseph P. Tracy 1926-6-20 7631 Humboldt Horse Mountain. 1463 Comment
  RSA88853  Carex ovalis Alice Eastwood, John Thomas Howell 1937-6-23 4790 Humboldt Near Dinsmore s. Comment
  CAS-BOT-BC119228  Carex pachystachya Joseph Prince Tracy 1935-5-25 13885 Humboldt Dobbyn Creek 152 Comment
  CAS-BOT-BC119232  Carex pachystachya Joseph Prince Tracy 1936-7-5 15043 Humboldt Grouse Mountain. 1524 Comment
  UC562644  Carex pachystachya Joseph P. Tracy Jul 16 1930-Jul 19 1930 8984 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC98935  Carex pachystachya Cara Witte 2007-7-8 444 Humboldt Board Camp Mountain. Trail 4E28. 1496 Comment
  UC562654  Carex pachystachya Joseph P. Tracy 1930-7-10 8868 Humboldt Brannan Mountain Northern Coast Ranges 1219 Comment
  HSC49246  Carex pansa Rudolf W. Becking 1979-3-25 Humboldt U.S. Coast Guard Station along N Spit Humboldt Bay, Fairhaven Comment
  HSC76847  Carex praticola L. P. Janeway 1982-6-20 15 Humboldt Near road underdrain, 30 m N on FS Rd. 6N36 from Titlow Hill Rd. 1384 Comment
  JEPS79869  Carex rossii Joseph P. Tracy 1904-5-1 2041 Humboldt Northern Coast Region, at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  HSC102114  Carex spectabilis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1018 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  SEINET10880003  Carex subfusca David Castaner 1989-5-28 Castaner 8067 Humboldt Patrick Point SP area. Redwood forest. Comment
  CAS-BOT-BC115576  Carex tumulicola Joseph Prince Tracy 1912-7-26 3835 Humboldt Kneeland Prairie. 762 Comment
  CAS-BOT-BC115573  Carex tumulicola Joseph Prince Tracy 1935-6-16 11270 Humboldt Buck Mt. Lower NW slopes on grassy hillside. 792 Comment
  CAS-BOT-BC115575  Carex tumulicola Joseph Prince Tracy 1939-4-29 16254 Humboldt Orleans. 121 Comment
  JEPS79867  Carex unilateralis Joseph P. Tracy 1933-6-9 12539 Humboldt Fortuna North Coast Ranges, Fortuna 18 Comment
  UC562332  Carex utriculata Joseph P. Tracy 8988 Humboldt South Fork Mountain; McKay Camp 1676 Comment
  CAS-BOT-BC115065  Carex vesicaria Joseph Prince Tracy 1934-7-18 13428 Humboldt In shallow pond, Grouse Mountain. 1524 Comment
  UCD129945  Carthamus lanatus T. C. Fuller 1962-8-7 9365 Humboldt Luke's Prairie, on ridge 1 m. north above Bull Creek, ca. 2 miles west of Dyerville. Comment
  POM283642  Castilleja Lyman Benson 1929-7-19 1852 Humboldt Mouth of Matole [Mattole] River. Comment
  JEPS88811  Castilleja affinis subsp. litoralis T. I. and F. M. Chuang 1991-7-8 7874 Humboldt ca 2 mi sw Orick Comment
  HSC55831  Castilleja applegatei G. L. Clifton 1979-7-25 10745 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  UC1011932  Castilleja applegatei subsp. pinetorum F. W. Pennell and J. P. Tracy 1940-7-7 26097 Humboldt w of Salyer; Grouse Mountain 1493 Comment
  CAS-BOT-BC255522  Castilleja applegatei var. pinetorum Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1371 Comment
  HSC99531  Castilleja arachnoidea K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 195 Humboldt Near North Trinity Mtn and Water Dog Lakes, Six Rivers National Forest. 1826 Comment
  UC27149  Castilleja attenuata Harley P. Chandler May 1901 1141 Humboldt Humboldt Bay; North Coast Ranges 3 Comment
  HSC48386  Castilleja hispida subsp. brevilobata Brad Klipfel 1973-6-10 110 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC56159  Castilleja miniata G. L. Clifton, Griswold 1979-8-1 12028 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  UC41774  Castilleja miniata Chesnut and Drew Aug 1888 Humboldt Grouse Creek Comment
  HSC38886  Castilleja miniata J. O. Sawyer 1970-6-25 2300 Humboldt 1646 Comment
  UCD74318  Caulanthus major Tim Curns 2008-7-1 s.n. Humboldt Nevada, Humboldt County: Toiyabe National Forest. Hinkey Summit, near road 084, across from road 536, along unmarked road. Comment
Read comments
May 23 2013
  UC1502125  Ceanothus R. Sutherland 1975-7-1 B. 1 .7 75 Humboldt along Baker Creek; Garberville Quad., along Baker Creek 335 Comment
  HSC100905  Ceanothus Carl C. Marshall Jun 1887 462 Humboldt East branch. Comment
  HSC44432  Ceanothus arcuatus Brad Klipfel 1975-5-24 634 Humboldt Horse Mtn. Comment
  SEINET7720971  Ceanothus cuneatus Chesnut, Drew 1888-8-1 Humboldt Grouse Creek Comment
  CAS-BOT-BC49654  Ceanothus foliosus var. foliosus M. S. Jussel 1931-5-2 104 Humboldt Garberville Comment
  HSC36676  Ceanothus foliosus var. foliosus R. Sutherland 1975-7-7 1 .7775 Humboldt Bank of Eubanks Creek 259 Comment
  CAS-BOT-BC50049  Ceanothus incanus Doris K. Kildale 1926-8-8 2470 Humboldt Dyerville Bridge near Dyerville - South Fork of Eel River 45 Comment
  JEPS42372  Ceanothus incanus W. L. Jepson 1902-8-5 2149 Humboldt Ettersburg to Briceland Comment
  HSC37616  Ceanothus integerrimus R. Sutherland 1975-5-29 0 .29575 Humboldt Along rd. at Van Anken Creek 299 Comment
  HSC39520  Ceanothus integerrimus Thomas W. Nelson, James Nelson 1976-6-10 2663 Humboldt Ridge W of Senteney Rock 1555 Comment
  UC668164  Ceanothus integerrimus Joseph P. Tracy 1934-4-15 13180 Humboldt Willow Creek Trinity River Valley 152 Comment
  RSA46465  Ceanothus integerrimus var. californicus Doris K. Kildale 1927-5-15 3301 Humboldt Petrolia Comment
  BLMAR174  Ceanothus oliganthus subsp. sorediatus Donald Hazlett 1994-6-7 174 Humboldt King range, Tallus slope Near horse Mt. road 670 Comment
  SBBG116557  Ceanothus oliganthus var. sorediatus D. H. Wilken 2003-7-22 16174 Humboldt near Windy Nip Gap, Mattole Rd, 1.5 km SW of Cathy's Pk 670 Comment
  UC1193285  Ceanothus oliganthus var. sorediatus P. Zinke 1950-8-26 157 Humboldt Salmon Creek 3 mi w Miranda; Quad. 29C1, Salmon Creek 91 Comment
  UCSB12871  Ceanothus oliganthus var. sorediatus Zinke, P. 1950-10-4 Humboldt 2 miles southeast of Honeydew 182 Comment
  CAS-BOT-BC51224  Ceanothus parryi C. Hart Merriam 1920-8-27 s.n. Humboldt South fork Eel River (10 miles so. of Garberville) Comment
  CAS-BOT-BC51225  Ceanothus parryi C. Hart Merriam 1925-5-25 s.n. Humboldt Highway, South Fork Eel River Comment
  HSC43210  Ceanothus parryi R. Sutherland 1975-4-22 9 .22475 Humboldt Near China Creek at county rd. 207 Comment
  SBBG4431  Ceanothus parryi M. Van Rensselaer 1941-4-29 1644 Humboldt Redwood Hwy near Garberville Comment
  SBBG68534  Ceanothus parryi L. Rowntree -Jul-1931 Humboldt Ettersburg Comment
  SD42404  Ceanothus parryi Carl B. Wolf 1941-7-27 11086 Humboldt N. Coast ranges, 5.8 mi. W. Maple Creek on road to Freshwater 609 Comment
  UC1004332  Ceanothus parryi W. L. Colwell 1954-11-20 22 Humboldt along Eel River 3 mi e South Fork; Quad. 29B4, Eel River e of South Fork 91 Comment
  HSC23294  Ceanothus pumilus D. E. Anderson, J. P. Smith 1971-7-6 - 1311 Humboldt Horse Mtn. 10 mi W of Willow Creek 1524 Comment
  HSC43229  Ceanothus pumilus R. Sutherland 1976-4-17 5 .17476 Humboldt 549 Comment
  RSA46917  Ceanothus pumilus Doris K. Kildale 1926-4-25 1810 Humboldt Hoopa Mt. 793 Comment
  RSA25754  Ceanothus thyrsiflorus Carl B. Wolf 1941-7-28 11089 Humboldt Summit of Trinidad Head. 46 Comment
  RSA600896  Ceanothus thyrsiflorus Louis C. Wheeler 1959-8-1 7618 Humboldt Queens Peak Mine. Comment
  SBBG116555  Ceanothus thyrsiflorus var. thyrsiflorus D. H. Wilken 2003-7-22 16176 Humboldt near Windy Nip Gap, Mattole Rd, 1.5 km SW of Cathy's Pk 670 Comment
  SD51272  Ceanothus velutinus D. F. Howe 1961-8-2 Humboldt 2.7 miles east of Orick on Bald Mt. road 762 Comment
  UC275283  Ceanothus velutinus Joseph P. Tracy 1923-10-28 6590 Humboldt Bald Mountain 762 Comment
  UC906721  Centaurea benedicta Harold E. Parks and Joseph P. Tracy 1942-7-2 11580 Humboldt Dinsmore's 762 Comment
  UCD129971  Centaurea benedicta P. B. Kennedy 1929-6-13 s.n. Humboldt Etter's Ranch, Ettersburg. Comment
  RSA120711  Centaurium muehlenbergii S. S. Tillett 1956-7-6 607 Humboldt Above Klamath River, along Ishi Rish Road, one mile north of Orleans. 168 Comment
  RSA32866  Centaurium muehlenbergii A. A. Heller 1923-7-8 13768 Humboldt Eight miles south of Dyerville. Comment
  UC906756  Centaurium muehlenbergii Joseph P. Tracy 1941-9-7 17013 Humboldt near Blue Lake; Mad River 15 Comment
  UC162716  Centaurium muehlenbergii Joseph P. Tracy 1911-7-10 3485 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1196465  Cephalanthera austiniae Joseph P. Tracy 1914-7-5 4577 Humboldt between High Prairie and Snow Camp (Bald Mt.); Northern Coast Ranges, Bald Mt. 1219 Comment
  HSC34450  Cephalanthera austiniae A. Montalvo, J. D. Ackerman 1975-6-22 495 Humboldt 2 mi. E of Bridgeville along Hwy. 36 Comment
  HSC4096  Cerastium arvense Doris K. Kildale 1925-6-28 814 Humboldt Kneeland Prairie Comment
  UC1198315  Cerastium glomeratum Joseph P. Tracy 1913-6-14 4123 Humboldt opposite Buck Mt. (Dinsmore's Ranch); Northern Coast Ranges, Van Duzen R. Valley, Dinsmore's Ranch 762 Comment
  UCD98024  Cerastium glomeratum Linda M. Barker 1976-4-13 1381 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC95646  Cerastium glomeratum Andrea Pickart 2002-4-3 33 Humboldt Samoa Dunes, Eureka airport, 'Superbowl 15 Comment
  UC535726  Cercocarpus betuloides var. betuloides Eleanor Armstrong 1934-8-22 1184 Humboldt Richardson Grove 121 Comment
  CAS-BOT-BC85654  Chamaecyparis lawsoniana Doris K. Kildale 1928-10-7 6749 Humboldt Willow Creek Canyon, 7 miles west of Trinity River. Comment
  UC1198975  Chamaesyce serpyllifolia Joseph P. Tracy 1925-11-1 7299 Humboldt along Eel River (from South Fork to Scotia, Shively); Northern Coast Ranges 60 Comment
  HSC26872  Chamerion angustifolium subsp. circumvagum Clifton Raymond Chesbrough 1973-6-19 97 Humboldt 1/2 mi. N of College Cove along the coast Comment
  HSC76618  Chamerion angustifolium subsp. circumvagum John Demarinis 1981-7-21 884 Humboldt Near Table Bluff 38 Comment
  RSA685760  Cheilanthes gracillima Henry M. Pollard 1948-7-24 s.n. Humboldt Near Orleans. Comment
  UC1481862  Cheilanthes gracillima Milo S. Baker 1926-7-13 10 a-26 Humboldt 1/2 mi along Forest Rd from Hwy S Fork Mt Comment
  RSA53826  Chenopodium ambrosioides var. ambrosioides H. M. Pollard 1946-9-1 s.n. Humboldt Near Wilson Creek, Orleans region Comment
  RSA478470  Chenopodium botrys T. Gertrude Williamson 1924-7-16 s.n. Humboldt Lane s Flats; bed of Eel River. Comment
  UCD98277  Chenopodium macrospermum Malcolm A. Nobs; S. Galen Smith 1949-8-11 1340 Humboldt eastern shore of Stone Lagoon. Comment
  CAS-BOT-BC473032  Chenopodium macrospermum var. farinosum Edward Lee 1934-8-17 1151 Humboldt East shore of Big Lagoon, 35 miles N of Eureka 3 Comment
  HSC55025  Chimaphila menziesii Overton, Butler 1979-7-31 11440 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC17948  Chimaphila menziesii D. E. Anderson 1963-5-18 2449 Humboldt Near junction of New and Trinity Rivers Comment
  HSC17955  Chimaphila umbellata D. E. Anderson 1961-9-30 1846 Humboldt Divide Lake. 915 Comment
  HSC41338  Chimaphila umbellata Brad Klipfel 1974-9-7 562 Humboldt Horse Mtn., above E fork of Willow Creek Comment
  UC32702  Chimaphila umbellata Chesnut and Drew 1888-7-8 Humboldt near Campbell's Comment
  HSC97991  Chimaphila umbellata subsp. occidentalis Cara Witte 2007-7-8 446 Humboldt Board Camp Mountain. Trail 4E28. 1496 Comment
  RSA43899  Chimaphila umbellata subsp. occidentalis H. M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. 1372 Comment
  CAS-BOT-BC36484  Chrysolepis chrysophylla Doris K. Kildale 1927-2-22 2978 Humboldt Kneeland Prairie junction of old road Comment
  HSC72798  Chrysolepis chrysophylla Gail Newton 1980-6-17 214 Humboldt Near Onion Mtn. 1341 Comment
  HSC98791  Chrysolepis chrysophylla var. minor Cara Witte 2007-9-3 639 Humboldt Horse Mountain Botanical Area. Road 6N38. 1 mile east of Horse Mountain Mine. 1259 Comment
  UC642242  Cicuta douglasii Joseph P. Tracy 1927-9-25 8379 Humboldt 2 mi s of Field's Landing (near Still Ranch) 6 Comment
  HSC58382  Cinna latifolia Terry Griswold 1979-7-25 10857 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon 1784 Comment
  HSC54023  Circaea alpina subsp. pacifica Griswold, Butler 1979-7-12 7185 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC56162  Circaea alpina subsp. pacifica G. L. Clifton, Terry Griswold 1979-8-1 12038 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  UC1103564  Circaea alpina subsp. pacifica Joseph P. Tracy 1906-5-6 2441 Humboldt near Hydesville (Wolverton Gulch); Northern Coast Region, Wolverton Gulch 60 Comment
  RSA20788  Circaea alpina subsp. pacifica Carl B. Wolf 1937-8-13 9253 Humboldt North Coast Range, 11 miles E of Hoopa Valley on new road towards Trinity Summit. 1524 Comment
  JEPS59187  Cirsium arvense W. L. Jepson 1936-8-17 17927 Humboldt 3 mi s Fields Landing Comment
  CDA20074  Cirsium arvense E. Finley 2002-10-9 PDR 1035511 Humboldt Northwestern California; Hwy 36 at MM 31.08 E-bound. 0 Comment
  HSC91921  Cirsium brevistylum E. Mackey 1987-9-5 Humboldt Patricks Point State Park; in dune area Comment
  HSC47962  Cirsium douglasii var. breweri Brad Klipfel 1974-8-2 518 Humboldt Horse Mtn. Comment
  CAS-BOT-BC279977  Cirsium douglasii var. douglasii David D. Keck 1948-7-2 6002 Humboldt E. side Rocky Ridge, E. of Berry's summit, 8.6 mi. W. of Willow Ck., 1/4 mi. W. of boundary of Six Rivers Nat. Forest 76 Comment
  UC176341  Cirsium occidentale var. candidissimum Joseph P. Tracy 1912-7-26 3854 1/2 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  BLMAR107  Cirsium occidentale var. candidissimum Jennifer Anthony-Wheeler 1994-7-26 107 Humboldt Lacks Creek, growing on dry exposed banksurrounded by doug fir 1158 Comment
  OBI56358  Cirsium occidentale var. venustum B. Villegas 1998-8-5 s.n. Humboldt North Coast Ranges. Nr berry Summit on Titlow Hill Rd, 3.9 mi S of hwy 299 Comment
  UC204832  Cirsium occidentale var. venustum Joseph P. Tracy 1918-7-3 4988 Humboldt Wilder Ridge Northern Coast Ranges, Wilder Ridge 762 Comment
  UCD148530  Cirsium occidentale var. venustum B. Villegas 1998-8-5 s.n. Humboldt near Berry Summit on Titlow Hill Road, 3.9 miles south of Highway 229. Comment
  UC1223041  Cirsium remotifolium var. odontolepis Joseph P. Tracy 1949-8-11 18472 Humboldt 2 to 6 mi s from Grouse Mt. (e of headwaters of Redwood Creek, beginning where the electric power line crosses, and working south); Kinsey Ridge 1280 Comment
  CAS-BOT-BC160957  Clarkia amoena subsp. amoena Carl B. Wolf 1927-8-29 1199 Humboldt 7 mi. s. of Ferndale & Capetown, Bear River Ridge, Mt. Glen Comment
  BLMAR1  Clarkia amoena subsp. amoena Jennifer Anthony-Wheeler 1993-7-30 1 Humboldt King range, growing scattrd through coastal grassland along smith-etter 15 Comment
  HSC48148  Clarkia amoena subsp. huntiana Thomas W. Nelson, Jane P. Nelson 1978-7-3 4410 Humboldt Along Hwy. 36, 100 m E of Dinsmore 610 Comment
  CAS-BOT-BC164176  Clarkia concinna M. S. Jussel 1931-5-2 s.n. Humboldt Near Garberville Comment
  CAS-BOT-BC164175  Clarkia concinna S. K. Harris; J. P. Tracy 1936-6-10 3265 Humboldt West of the South Fork of the Trinity River near its mouth 640 Comment
  CAS-BOT-BC164179  Clarkia concinna S. K. Harris; J. P. Tracy 1936-6-10 3265 Humboldt West of the South Fork of the Trinity River near its mouth 640 Comment
  UC144067  Clarkia concinna subsp. concinna Joseph P. Tracy 1908-6 2742 Humboldt nw slope Buck Mountain; Northern Coast Ranges 762 Comment
  HSC38102  Clarkia gracilis Thomas W. Nelson, James Nelson 1976-5-30 2623 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC902179  Clarkia gracilis subsp. sonomensis Joseph P. Tracy 1944-7-3 17484 Humboldt Willow Creek Trinity River Valley 152 Comment
  JEPS43640  Clarkia gracilis subsp. sonomensis Lincoln Constance 1934-5-23 618 Humboldt upper end Look Prairie; South Fork Eel River, Bull Creek Region 365 Comment
  UC1196983  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1912-7-4 3730 Humboldt near Hydesville; Northern Coast Region 60 Comment
  CAS-BOT-BC172514  Clarkia purpurea subsp. quadrivulnera Paul F. Covel 1937-7-11 888 Humboldt Near Garberville Comment
  UC1222851  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1950-6-15 18809 Humboldt n Harris (Fort Seward Ranch); Mail Ridge Comment
  UC494115  Claytonia exigua subsp. glauca H. E. Parks and J. P. Tracy 1930-5-26 878 Humboldt Laribee Valley Comment
  HSC48838  Claytonia lanceolata Brad Klipfel, J. O. Sawyer, J. P. Smith 1973-5-27 30 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  HSC17684  Claytonia perfoliata D. B. Bader 1963-2-17 36 Humboldt Second of the Clam Beach Lagoons W. of Hwy.101 Comment
  HSC33740  Claytonia perfoliata John Palmer 1975-5-24 360 Humboldt Samoa Dunes, off Samoa Blvd. across from the boat landing Comment
  HSC90228  Claytonia perfoliata L. Watson, J. Meninga Mar 1991 15 Humboldt Near Manila, Mad River slough and dunes, SW edge of parking lot. Comment
  SEINET196691 Image available Claytonia perfoliata subsp. intermontana Joseph P. Tracy 1949-6-6 18306 Humboldt Trinity Summit Range; Happy Camp Mt., NE of Hawkins Bar. 1280 Comment
  HSC89475  Claytonia perfoliata subsp. mexicana P. A. Daly 1986-3-12 90 Humboldt Trinidad Head, along trail 61 Comment
  UC198590  Claytonia rubra subsp. depressa Joseph P. Tracy 1917-5-30 4792 Humboldt Little River Beach; Northern Coast Ranges 6 Comment
  CHSC1384  Claytonia sibirica M. Underhill 1952-7-12 Humboldt Wet bank. 121 Comment
  HSC34799  Claytonia sibirica Scott M. Kruse 1975-4-9 5 Humboldt Redwood Park, Arcata 18 Comment
  HSC55205  Claytonia sibirica Walter Overton 1979-8-1 12323 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  SEINET11942404  Claytonia sibirica J. P. Tracy 1950-1 18960 Humboldt Fern Spring, Happy Camp Mountain (in Trinity Summit Range, 6 mi NE of Hawkins Bar) 1280 Comment
  SEINET202283  Claytonia sibirica J. P. Tracy 1950-7-2 18960 Humboldt Fern Spring Happy Camp Mt. in Trinity Summit Range 6 mi NE of Hawkins Bar 1280 Comment
  BLMAR187  Clinopodium douglasii Donald Hazlett 1994-6-7 187 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UCSB12091  Clintonia andrewsiana Dearing, Hugh; Dearing, Margaret 1931-5-16 Humboldt Weott Comment
  CAS-BOT-BC499343  Clintonia andrewsiana Marcus E. Jones 1924-4-28 s. n. Humboldt Scotia 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
  SEINET12050375  Clintonia andrewsiana F. H. Utech 1988-1 88 -274 Humboldt 14 mi W of Bridgeville to Carlotta on CA 36, Mi 11.40, Van Duzen County Park, along Van Duzen River 50 Comment
  JEPS26343  Collinsia heterophylla Joseph P. Tracy 1914-5-14 4464 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  CHSC63420  Collinsia linearis Vernon H. Oswald 1994-6-29 6357 Humboldt Titlow Hill Rd. (Forest Rd. 1) 3.9 mi S of Hwy. 299, SW of Willow Creek. 1289 Comment
  UC54920  Collinsia linearis Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  BLMAR629  Collinsia parviflora Jennifer Wheeler 2011-6-15 629 Humboldt Lacks Creek, Pine Ridge Road 1097 Comment
  HSC20605  Collinsia parviflora J. P. Tracy 1933-6-13 12567 Humboldt Hoopa Mtn., near summit on rd. from Hoopa westward to Bair's 1067 Comment
  UC1196761  Collinsia parviflora Joseph P. Tracy 1913-6-14 4122 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1196824  Collinsia sparsiflora var. sparsiflora Joseph P. Tracy 1904-4-3 2007 Humboldt immed. vicinity Eureka 0 Comment
  SBBG6896  Collinsia torreyi var. torreyi H. and M. Dearing 1939-6-21 3688 Humboldt E fork of Willow Crk Comment
  HSC48850  Collomia grandiflora Brad Klipfel 1973-7-15 208 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC52547  Collomia heterophylla Mrs. M. H. Manning June, 1902 Humboldt Hupa Comment
  HSC44406  Collomia heterophylla R. York 1978-5-6 158 Humboldt Along Bluff Creek Rd., 4 mi. from Jct. with Hwy. 96 610 Comment
  UC133645  Collomia heterophylla Joseph P. Tracy 1909-7-31 3046 Humboldt on gravelly hillside Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC908768  Collomia heterophylla P. B. Kennedy 1929-6-14 Humboldt California Barrel Company Range Arcata Comment
  CAS-BOT-BC230665  Collomia tracyi Milo S. Baker 1946-6-15 11476 Humboldt Horse Mountain Road, about 2 miles up from Trinity Highway 1066 Comment
  HSC71821  Collomia tracyi Thomas W. Nelson, Jane P. Nelson 1980-6-27 5954 Humboldt Six Rivers National Forest, saddle between two peaks E of Mt. Lassic 1768 Comment
  JEPS26242  Collomia tracyi Joseph P. Tracy 1932-7-12 10468 Humboldt head Brett Hole (in areas of disintegrated rock); Trinity Summit 1828 Comment
  UC1197861  Collomia tracyi Joseph P. Tracy 1930-6-23 9130 Humboldt on hillside of disintegrated rock Northern Coast Ranges, Horse Mountain 1432 Comment
  SEINET10454738  Conium maculatum Mary Susan Taylor 1977-8-5 Taylor 1433 Humboldt Abundant around bridge over Eel River, at the turnoff from Hwy 1 to Ferndale, in Fernbridge. 2 Comment
  JEPS47868  Convolvulus arvensis Lincoln Constance 1934-5-27 692 Humboldt Dyerville Bridge South Fork Eel River, Bull Creek Region (gravel bar of river at s end) 45 Comment
  BLMAR83  Corallorhiza maculata Jennifer Anthony-Wheeler 1994-6-2 83 Humboldt IAQUA 1036 Comment
  HSC90429  Cordylanthus maritimus subsp. palustris Jean Hanson 1980-6-22 98 Humboldt Indian (Gunther) Island, Humboldt Bay, city of Eureka: W side of dike on NW side of island. Comment
  HSC95093  Cordylanthus maritimus subsp. palustris Andrea Pickart 2002-6-27 123 Humboldt Mad River Slough and Dunes, N of parking area at N end of access road. 0 Comment
  JEPS50770  Cordylanthus maritimus subsp. palustris Rimo Bacigalupi 1967-8-13 9307 Humboldt in salicornia salt marsh w of Northwest Pacific Railroad tracks and 1/8 mi n of Arcata Redwood Company plant 4 mi n Eureka (w shore of Arcata Bay); Arcata Bay 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
  RSA43897  Cordylanthus tenuis subsp. viscidus H. M. Pollard 1947-8-28 s.n. Humboldt Near old placer mine, north of Forest Service Station, Orleans. Comment
  BLMAR678  Corethrogyne filaginifolia Jennifer Wheeler 2013-7-12 678 Humboldt King range, Johnny Jack Ridge 677 Comment
  CAS-BOT-BC101138  Corethrogyne filaginifolia D. M. Gordon 1982-9-20 s.n. Humboldt End of county road (Lanphere Rd.) on Hunt property. Lanphere-Christensen Dunes Preserve, 3 miles west of Arcata Comment
  CAS-BOT-BC101150  Corethrogyne filaginifolia Joseph P. Tracy 1938-7-15 16059 Humboldt fields at Bucksport, at Eureka 6 Comment
  UC1119247  Corethrogyne filaginifolia H. S. Yates 1968-6-16 5668 Humboldt 1.5 mi sw of Samoa; Eureka Quadrangle Comment
  UC205481  Cornus glabrata Joseph P. Tracy 1919-9-14 5210 Humboldt at Lack Pond (Trinity R. Valley near Willow Creek); Northern Coast Ranges, Trinity R. Valley 152 Comment
  HSC65074  Cornus nuttallii J. P. Smith, Steve Selva 1970-6-14 3853 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  UC1196901  Cornus nuttallii Joseph P. Tracy 1935-4-20 13786 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  UC1222617  Cornus nuttallii Joseph P. Tracy 1950-10-7 19384 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  UC412923  Cornus nuttallii P. E. Goddard 1906-6 692 Humboldt Lasseck Peak Comment
  CAS-BOT-BC212130  Cornus sericea H. E. McMinn 1922-8-5 348 Humboldt Along Van Duzen River Comment
  CAS-BOT-BC212184  Cornus sericea Volney Rattan 1903-1-1 s.n. Humboldt Eel River Comment
  HSC41000  Cornus sericea subsp. sericea J. O. Sawyer 1975-10-17 2710 Humboldt S slopes of N Trinity Mtn. Comment
  HSC45439  Cornus sericea subsp. sericea Thomas W. Nelson, Jane P. Nelson 1978-7-2 4405 Humboldt Off FS Rd. 2S08 near Pine Mountain, road to Lost Lake. 1463 Comment
  RSA46844  Cornus sessilis Doris K. Kildale 1927-7-3 3631 Humboldt Willow Creek Flat. Comment
  SJSU2584  Cornus sessilis H. L. Buckalew 1962-7-2 Humboldt junction of Willow Cr & E Fork Willow Cr on Hwy 299 Comment
  UC249592  Cornus sessilis Joseph P. Tracy 1921-8-21 5941 Humboldt Trinity R. at mouth of S. Fork <Trinity R.>; Northern Coast Ranges, Trinity R. 152 Comment
  UC667997  Corylus californica Joseph P. Tracy 1938-7-6 16027 Humboldt Big Lagoon Prairie 15 Comment
  CAS-BOT-BC180308  Corylus cornuta subsp. californica L. B. Kildale 1930-9-21 10225 Humboldt Bluff Creek trail to Fish Lake Comment
  HSC58352  Corylus cornuta subsp. californica Overton, Butler 1979-8-2 12690 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  RSA697176  Corylus rostrata var. californica J. R. Bruff 1937-8-17 918 Humboldt Richardson Grove. Comment
  CHSC102885  Cotoneaster simonsii Peter F. Zika 2008-10-19 24227 Humboldt North Coast Nco. E side of Route 101, near Exit 728 for Trinidad Beach. 110 Comment
  HSC69750  Cotula australis Thomas W. Nelson 1977-10-10 3757 Humboldt Along 6th St. between G & H Sts.; Eureka Comment
  UC166068  Cotula coronopifolia J. P. Tracy 1903-8-9 1948 Humboldt immediate vicinity of Eureka 0 Comment
  UCD130891  Cotula coronopifolia Linda M. Barker 1976-7-5 1638 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UCSB9478  Cotula coronopifolia Parks, H. 1941-09 Humboldt Little River State Park Comment
  UC1080303  Crataegus gaylussacia E. K. Balls 1957-5-25 22602 Humboldt State Hwy 36, Van Duzen River, W of Trinity-Humboldt Co. line 731 Comment
  UC581731  Crepis acuminata Joseph P. Tracy 1935-7-30 14382 Humboldt Salmon Summit 2103 Comment
  UC1051582  Crepis capillaris Joseph P. Tracy 1948-9-20 18221 Humboldt Mill Creek Hoopa Valley 106 Comment
  CAS-BOT-BC290587  Crepis capillaris L. R. Abrams 1922-6-25 8234 Humboldt 2 mi. south of Fortuna Comment
  JEPS37502  Crepis pleurocarpa Joseph P. Tracy 1935-7-28 14332 Humboldt Brett Hole Trinity Summit (head) 1828 Comment
  HSC98848  Crepis pleurocarpa Cara Witte 2008-7-11 871 Humboldt National Forest Road 6N36. 1/4 mile from intersection with National Forest 1. 1443 Comment
  RSA113706  Crepis setosa Joseph P. Tracy 1948-9-20 18215 Humboldt Hoopa Valley 107 Comment
  UC1199229  Crocidium multicaule Joseph P. Tracy 1930-5-4 8690 Humboldt Larrabee Valley 701 Comment
  HSC100428  Crocidium multicaule Carl C. Marshall Apr 1887 366 Humboldt Hoopa Valley, near Supply Creek. Comment
  RSA263019  Crocosmia aurea Bennett, Dunn, Dziekanowski 1976-8-6 477 Humboldt By Highway 101, north side of Orick 30 Comment
  HSC57991  Cryptantha affinis G. L. Clifton, Griswold 1979-7-31 11739 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC525589  Cryptantha flaccida Joseph P. Tracy 1930-6-15 8750 Humboldt near Bosworth's; Northern Coast Ranges, Larrabee Creek 457 Comment
  HSC3608  Cryptantha intermedia var. hendersonii H. E. Parks, J. P. Tracy 1934-6-14 11021 Humboldt Horse Mtn. near Arford cabin 1220 Comment
  CHSC10140  Cryptantha leiocarpa J. W. Johnson 1962-4-10 1237 Humboldt Arcata. West slope of Ridge 3 behind the foredunes. Christenson Farm, Samoa Penisula. Comment
  SBBG28775  Cryptantha torreyana L. Constance, R. C. Rollins 1942-5-11 Humboldt Hoopa Valley 5 mi S of Hoopa 121 Comment
  UC1239651  Cryptantha torreyana Joseph P. Tracy 1926-7-5 7732 Humboldt Valley of South Yager Creek 762 Comment
  UC175786  Cryptantha torreyana J. P. Tracy 1903-5-22 1879 Humboldt Alder Point Bridge Eel River 152 Comment
  UC525612  Cryptantha torreyana Joseph P. Tracy 1933-8-30 13024 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  SEINET10531493  Cupressus macrocarpa Fred G. Meyer 1938-4-7 Meyer 1397 Humboldt About 20 miles north of Eureka Comment
  UC562476  Cuscuta campestris Joseph P. Tracy 1925-8-2 7220 Humboldt Big Lagoon 3 Comment
  UC906746  Cuscuta campestris Harry B. Tucker Oct 1946 Humboldt 6 Comment
  SD90539  Cuscuta pacifica var. pacifica Robert F. thorne, P. Everett 1965-8-8 35280 Humboldt North edge of Eureka, east of Hwy. 101 3 Comment
  HSC62883  Cuscuta salina J. M. DiTomaso 1979-5-20 1065 Humboldt Eureka Bay 3 mi. SW of Arcata on Samoa Rd. Comment
  SEINET200581  Cynoglossum grande J. P. Tracy 1901-4-26 1047 Humboldt Humboldt Hill 0 Comment
  UC1222260  Cynoglossum occidentale Joseph P. Tracy 1948-8-15 18121 Humboldt on Ridge 2 mi. e. of Grove's Prairie (Trinity Summit Rd.); Trinity Summit 1524 Comment
  UC525557  Cynoglossum occidentale Joseph P. Tracy 1930-7-10 8871 Humboldt Brannan Mt. Northern Coast Ranges, Brannan Mt. 1219 Comment
  UCD60170  Cynosurus echinatus P. B. Kennedy 1929-6-14 s.n. Humboldt Arcata, Range of California Barrel Co. Comment
  RSA54135  Cyperus bipartitus Henry M. Pollard s.n. Humboldt Near Orleans. Comment
  CAS-BOT-BC114699  Cyperus bipartitus Henry M. Pollard 1946-8-22 s.n. Humboldt Wallathrone Riffle, Klamath River. Orleans Region. Comment
  SEINET200971  Cyperus erythrorhizos Joseph P. Tracy 1920-8-15 5364 Humboldt Klamath River at mouth of Bluff Creek. 152 Comment
  CAS-BOT-BC113831  Cyperus niger var. capitatus Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans. Comment
  UC1103641  Cyperus strigosus Joseph P. Tracy 1931-9-7 9655 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  HSC47957  Cypripedium californicum Brad Klipfel 1974-9-17 579 Humboldt Horse Mountain Comment
  CHSC110734  Cytisus scoparius Dean Wm. Taylor 2011-5-4 21114 Humboldt Alderpoint Road in the vicinity of the Snowline Fox Farm, vicinity of the road crossing of Knack Creek 341 Comment
  HSC14663  Cytisus scoparius var. andreanus T. M. Mingo May 1965 Humboldt 4 mi. N of College Cove Comment
  BLMAR15  Dactylis glomerata Brad Barr June, 1982 15 Humboldt King range, Lake ridge north facing slope Comment
  HSC22835  Dactylis glomerata B. D. Rogers 1964-4-28 28464 Humboldt Humboldt State campus near Redwood Hall parking lot Comment
  HSC70783  Dactylis glomerata Gail Newton 1980-7-23 1749 Humboldt Near Packsaddle Ridge 1463 Comment
  HSC79501  Dactylis glomerata Kenneth Clark 1980-6-14 685 Humboldt Shelter Cove; in stream alluvium of N fork of Dead Man's Gulch 198 Comment
  HSC9540  Dactylis glomerata E. W. Styskel 1964-4-12 64 Humboldt Corner of Center Street and Hwy. 101 in Rio Dell. Comment
  HSC97568  Dactylis glomerata Cara Witte 2007-6-7 220 Humboldt Along National Forest 1 on Kinsey Ridge. Approximately 2 miles southeast of intersection with 5N04. Near cattleguard. 1371 Comment
  RSA730951  Dactylis glomerata Gary D. Wallace 1979-6-22 1851 Humboldt Eureka. Parking lot, 6 Rivers National Forest headquarters. Comment
  UC37939  Dactylis glomerata Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5431 Humboldt Hubbard's Station Comment
  HSC39235  Danthonia californica D. E. Anderson, J. P. Smith 1971-7-28 - 1270 Humboldt 2.5 mi. S of Blue Lake along the Mad River. Comment
  HSC98940  Danthonia californica Cara Witte 2007-6-21 330 Humboldt White Oak Opening. Along Kinsey Ridge. 1259 Comment
  UC526685  Danthonia californica var. americana Joseph P. Tracy 1928-6-24 8463 Humboldt valley of South Yager Creek Northern Coast Ranges 762 Comment
  CAS-BOT-BC194415  Danthonia intermedia Joseph P. Tracy 1935-7-25 14231 Humboldt Open places at McKay Prairie, Trinity Summit 1584 Comment
  UC552754  Danthonia intermedia Joseph P. Tracy 1934-7-18 13421 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC98100  Danthonia unispicata Cara Witte 2007-6-20 306 Humboldt Forest Service Road 4N32. 1 mile south of intersection with 4N32E. 1386 Comment
  CAS-BOT-BC420360  Darmera peltata Volney Rattan 1903-1-1 s.n. Humboldt unspecified Comment
  JEPS12211  Datura stramonium W. L. Jepson 1932-7-28 16436 Humboldt Dyerville 88 Comment
  CHSC26758  Daucus carota M. S. Taylor 1977-8-5 1432 Humboldt Around bridge over Eeel River, at turnoff from Hwy 101 to Ferndale, in Fernbridge. Comment
  UCR123959  Daucus carota George K. Helmkamp, E. A. Helmkamp 2001-7-8 6985 Humboldt North Coast, CA Hwy 36, along the Van Duzen River, 19.6 mi east of CA Hwy 101, west of Bar W Road 137 Comment
  HSC59680  Daucus carota George Kirn 1977-10-1 Humboldt Eureka, open bayfront field 1/2 mi E of Hwy 255 6 Comment
  CAS-BOT-BC9028  Delphinium decorum subsp. tracyi Doris Kildale Gillespie 1931-6-7 10641 Humboldt South Fork Mtn., Blake Lookout 1726 Comment
  UC427876  Delphinium decorum subsp. tracyi H. E. Parks and J. P. Tracy 1930-5-25 789 Humboldt Laribee Valley 914 Comment
  CAS-BOT-BC10311  Delphinium hesperium Harley Pierce Chandler 1901-6-1 1410 Humboldt Kalmath River 304 Comment
  SEINET6907329  Delphinium hesperium W. P. Vestal, A. G. Vestal 1937-6-20 s.n. Humboldt About 4 miles north of Petrolia. Comment
  HSC25006  Delphinium nudicaule S. Estes 1964-4-29 12 Humboldt May Ranch, 2 mi. N of Bridgeville 305 Comment
  CAS-BOT-BC121960  Delphinium trolliifolium Doris K. Kildale 1927-5-15 3300 Humboldt Petrolia Comment
  CHSC1447  Delphinium trolliifolium A. Small 1954-6-3 Humboldt Near Ferndale. Comment
  UC1126089  Delphinium trolliifolium A. E. Wieslander 1931-5-21 210 Humboldt Kneeland China Flat Quadrangle Comment
  UC160942  Delphinium trolliifolium Joseph P. Tracy Jul 27 1908-Jul 30 1908 2712 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  RSA32276  Delphinium trolliifolium H. C. Cantelow 1941-4-19 s.n. Humboldt 8.4 miles SW of Ferndale Comment
  UC1225745  Delphinium trolliifolium Joseph P. Tracy 1946-6-15 17561 Humboldt lower slopes of mt Horse Mountain 1066 Comment
  UC13904  Delphinium trolliifolium W. C. Blasdale 1896-6-7 Humboldt Graham's Ranch Comment
  UCD61253  Deschampsia cespitosa Malcolm A. Nobs; S. Galen Smith 1949-8-3 1167 Humboldt 1 mile south of Fields Landing, Eel River Valley. Comment
  UCR32148  Deschampsia cespitosa subsp. beringensis David J. Keil 1983-7-2 17301 Humboldt Humboldt Bay salt marsh at Arcata Corporation Yard [600 G St.] Comment
  UC922025  Deschampsia cespitosa subsp. cespitosa Joseph P. Tracy 1937-8-12 15642 Humboldt Snow Camp 1402 Comment
  UC1103219  Deschampsia danthonioides Joseph P. Tracy 1914-5-30 4477 Humboldt Alton Northern Coast Ranges, Alton 30 Comment
  SEINET179616 Image available Deschampsia elongata H. E. Parks 3646 a Humboldt Big Lagoon Comment
  UC1103214  Deschampsia elongata J. P. Tracy 1900-7-4 874 Humboldt sand hills of Ocean Beach at Samoa; , Ocean Beach Comment
  SEINET4567133  Deschampsia elongata J. B. Davy 1899-6-12 5476 Humboldt Elk Prairie Comment
  UC503031  Dicentra formosa Joseph P. Tracy 1930-8-17 9164 Humboldt Big Lagoon; Northern Coast Region 15 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
  JEPS91306  Dicentra formosa subsp. formosa Dean W. Taylor 1971-5-2 1065 Humboldt Comment
  HSC96162  Dicentra pauciflora Laurel Goldsmith, Wanda Naylor 2005-6-15 12 Humboldt 1 mi. SE of Grouse Mtn. on unnamed F.S. road 1400 Comment
  UC176624  Dichelostemma X venustum Joseph P. Tracy 1913-6-26 4351 Humboldt nw slope Buck Mountain; Northern Coast Ranges 762 Comment
  HSC48032  Dichelostemma capitatum subsp. capitatum Brad Klipfel 1974-5-27 406 Humboldt Horse Mtn. Comment
  HSC102206  Dichelostemma ida-maia M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1121 Humboldt Andy's Camp 1564 Comment
  SEINET3885611  Dichelostemma ida-maia Thomas Nelson, Jane P. Nelson; James Nelson 1975-6-21 1947 Humboldt Beside Highway 36 ca. 5 mi. east of Bridgeville.; 0 Comment
  UC1198180  Dichelostemma ida-maia Joseph P. Tracy 1948-9-5 18187 Humboldt 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  CAS-BOT-BC501014  Dichelostemma ida-maia Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  RSA21187  Dichelostemma ida-maia Carl B. Wolf 1937-8-11 9146 Humboldt North Coast Range, 3 mi W of little Van Duzen River at summit of grade - Dinsmore to Bridgeville. 762 Comment
  HSC35026  Dichelostemma multiflorum Thomas W. Nelson, James Nelson 1975-5-24 1848 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC198609  Digitalis purpurea Joseph P. Tracy 1917-5-30 4790 Humboldt Dows Prairie Comment
  UC1103231  Digitaria sanguinalis Joseph P. Tracy 1934-8-14 13579 Humboldt 1 mi above mouth South Fork of Eel River; North Coast Ranges, South Fork of Eel River 60 Comment
  CAS-BOT-BC150338  Diplacus aurantiacus Doris K. Kildale 1927-5-15 3244 Humboldt Petrolia, back of Mattole River Comment
  CAS-BOT-BC150340  Diplacus aurantiacus Doris K. Kildale 1925-6-21 726 Humboldt Briceland Bridge 1/2 mile west of Garberville 114 Comment
  CAS-BOT-BC150350  Diplacus aurantiacus L. R. Abrams 1916-7-18 6072 Humboldt Fortuna Comment
  CAS-BOT-BC153238  Diplacus kelloggii Doris K. Kildale 1926-4-10 1786 Humboldt Bug Creek 792 Comment
  CAS-BOT-BC153240  Diplacus kelloggii Doris K. Kildale 1928-5-1 5985 Humboldt [MacLellan] McClellan Mountain 914 Comment
  UC535741  Disporum smithii Eleanor Armstrong 1169 B Humboldt Richardson Grove Comment
  UCR26493  Disporum smithii A. C. Sanders 1981-8-6 2304 Humboldt Patrick's Point State Park, north of Eureka 30 Comment
  POM277205  Disporum smithii Lyman Benson 1929-6-12 1752 Humboldt Weott Ranger St[ation]; S Fork Eel River. Comment
  CDA18208  Distichlis spicata G. D. Barbe, T. C. Fuller 1974-6-17 1835 Humboldt North Coast Ranges; Lower Pacific Drive, S of sewage plant, W of golf course, at Sail Court, Shelter Cove. 60 Comment
  UC526904  Distichlis spicata Joseph P. Tracy 1933-8-22 12989 Humboldt Mouth of Eel River 3 Comment
  UCD64363  Distichlis spicata var. stolonifera G. L. Stebbins Jr.; G. L. Church 1941-5-26 3104 Humboldt North end of city, Eureka. Comment
  UC562749  Dodecatheon alpinum Joseph P. Tracy 1932-7-14 10565 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  UC1222159  Downingia yina Joseph P. Tracy 1951-6-21 19527 Humboldt back of Everett Beck house (formerly Geoge Gray's) (on ranch at Hydesville, bed of former Goose Lake); Goose Lake, Hydesville Comment
  UC1115832  Draba verna Joseph P. Tracy 1939-5-14 16294 Humboldt Dinsmore's along Van Duzen River, Dinsmore's 746 Comment
  HSC59494  Drosera rotundifolia M. A. Ericksen 1979-4-21 213 Humboldt Big Lagoon County Beach, ca. 90 yards from the Rd. in center of bog. Comment
  UC585623  Drymocallis glandulosa var. reflexa Joseph P. Tracy 1935-7-23 14164 Humboldt lower end Brett Hole; Trinity Summit 1584 Comment
  UC903191  Drymocallis glandulosa var. wrangelliana Mrs. H. P. Bracelin 1931-5-2 285 Humboldt 3.5 mi s Alton; s of Alton Comment
  UC492181  Drymocallis glandulosa var. wrangelliana Joseph P. Tracy 1927-6-18 8181 Humboldt three mi s of point Cape Mendocino (southwestern slopes, fronting the ocean); Northern Coast Ranges, Cape Mendocino 3 Comment
  HSC99640  Dryopteris arguta T. Jimerson, J. Pageau 1979-7-31 700 Humboldt Near Whiting Ridge. Close to town of Hyampom 1204 Comment
  UC62809  Dryopteris expansa Marshall A. Howe 1896-5-30 Humboldt Eureka Comment
  POM208982  Dryopteris expansa Lincoln Constance 1934-6-3 811 Humboldt Border of Horse Praire, adjecent to Bull Cr watershed on S side 396 Comment
  HSC6461  Dudleya farinosa D. E. Anderson 1961-9-2 1773 Humboldt 3 mi. S of Cape Mendocino 3 Comment
  HSC26463  Dudleya farinosa T. O. Osborne 1970-7-18 21 Humboldt Sugarloaf Rock, Cape Mendocino Comment
  UC175612  Echinochloa crus-galli Joseph P. Tracy 1911-7-11 3507 Humboldt Hoopa Valley; Northern Coast Ranges, Hoopa Valley 152 Comment
  UCD61098  Echinochloa muricata Martin Pontoni 1925-11-14 Humboldt Eureka. Comment
  HSC7305  Eleocharis acicularis J. P. Tracy 1934-7-13 13393 Humboldt Dow's Prairie 61 Comment
  HSC7338  Eleocharis erythropoda E. Hunt 1949-5-17 17 Humboldt S Fork Mtn. Comment
  UC666873  Eleocharis macrostachya Joseph P. Tracy 1934-8-14 13570 Humboldt Alton 30 Comment
  HSC73057  Elymus X hansenii M. A. Baker 1980-7-23 3163 Humboldt Near Orleans Mtn. 1859 Comment
  HSC9695  Elymus condensatus J. Wendell Howe 1253 Humboldt Little River Beach Comment
  UC552793  Elymus elymoides subsp. elymoides Joseph P. Tracy 1935-7-28 14317 Humboldt Devil's Hole Trinity Summit (head) 1828 Comment
  HSC9713  Elymus glaucus D. E. Anderson 1965-5-15 3718 Humboldt Along Hwy. 96, 1.9 miles N of Willow Creek. Comment
  RSA129272  Elymus glaucus H. S. Yates 1936-6-17 5695 Humboldt Lower N.W. slope of Buck Mt.; South Fk. Pk. 793 Comment
  UCD61827  Elymus glaucus J. I. Mallory 1955-6-7 113 Humboldt North end of Luke Prairie. California Forest and Range Experiment Station. 350 Comment
  UCD61892  Elymus glaucus A. H. Shunk 1923-7-21 Humboldt Bridgeville. Comment
  SEINET10554247  Elymus glaucus Harold E. Parks, Joseph P. Tracy 1934-6-14 Parks 11026 Humboldt Horse Mountain. In chparral. 1372 Comment
  CAS-BOT-BC203475  Elymus glaucus subsp. glaucus Joseph P. Tracy 1925-7-5 7167 Humboldt High Prairie, on Bald Mountain 1066 Comment
  HSC98582  Elymus glaucus subsp. glaucus Cara Witte 2008-7-16 917 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  HSC38942  Elymus mollis subsp. mollis Linda M. Barker 1976-6-1 1563 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UC1103469  Elytrigia repens Joseph P. Tracy 1937-8-13 15664 Humboldt Loleta 9 Comment
  HSC33094  Empetrum nigrum J. P. Smith 1975-3-31 8048 Humboldt Megwill Point on Elk Head, just N of College Cove Comment
  UC1414225  Empetrum nigrum subsp. hermaphroditum Gary S. Lester 1975-4-6 604 Humboldt n Trinidad (Megwil Point); Trinidad State Beach, Elk Head 15 Comment
  HSC54564  Epilobium brachycarpum Overton, Butler 1979-7-24 9583 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1250 Comment
  HSC98714  Epilobium brachycarpum Cara Witte 2007-8-1 612 Humboldt White Oak Opening. Along Kinsey Ridge. 1257 Comment
  HSC41821  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
  UC1197006  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9099 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC103280  Epilobium ciliatum subsp. glandulosum John McRae 2012-9-7 1270 Humboldt Six Rivers National Forest, Lower Trinity District, Forest Service Road 5N10, at the crossing of Willow Creek. 1294 Comment
  HSC16367  Epilobium ciliatum subsp. watsonii J. P. Tracy 1926-7-25 7756 Humboldt Big Lagoon Comment
  HSC49655  Epilobium ciliatum subsp. watsonii J. P. Smith 1971-10-6 4953 Humboldt End of Murray Rd. in McKinleyville. Comment
  UC1951301  Epilobium ciliatum subsp. watsonii Robert F. Thorne and P. Everett 1965-8-5 35153 Humboldt Samoa Dunes. Comment
  HSC16369  Epilobium glaberrimum subsp. glaberrimum J. P. Tracy 1936-8-7 15102 Humboldt Trinity Summit, head of Little Hors-Linto Creek 1524 Comment
  UC562506  Epilobium hallianum Joseph P. Tracy 1935-5-25 13852 Humboldt Fort Seward 106 Comment
  UC20060  Epilobium oreganum Chesnut and Drew 1888-7-28 Humboldt Grouse Creek; ; Grouse Creek, Humboldt Co. Comment
  CHSC12031  Epilobium septentrionale R. N. Bowman 1971-9-12 51 Humboldt Located ca. 1.7 mi se of Myers Flat off of Hwy 101. Ca. 4 ft. above s fork Eel River on e bank. 1066 Comment
  UC725499  Epipactis gigantea A. A. Heller 1923-7-10 13790 Humboldt river between Scotia and Pepperwood; Eel River Comment
  UC902051  Epipactis gigantea Joseph P. Tracy 1949-7-7 18335 Humboldt Blue Slide Van Duzen River 91 Comment
  CAS-BOT-BC58018  Equisetum Doris K. Kildale 1929-3-16 6939 Humboldt Bug Creek - Chaparral Mt. Comment
  CAS-BOT-BC57106  Equisetum X ferrissii Henry M. Pollard 1946-8-31 s.n. Humboldt Near Wilson Creek, Orleans Mt. Comment
  HSC9784  Eragrostis mexicana subsp. virescens D. E. Anderson 1963-9-21 2834 Humboldt 0.5 mi E of Willow Creek Comment
  HSC9785  Eragrostis mexicana subsp. virescens J. P. Tracy 1931-9-7 9653 Humboldt Trinity River Valley, Willow Creek Comment
  CAS-BOT-BC291178  Erechtites glomeratus L. R. Abrams 1916-7-18 6108 Humboldt Arcata to Trinidad, 18 mi along coast Comment
  HSC89505  Erechtites glomeratus M. Roantree 1985-6-10 83 Humboldt East side of Trinidad Head Comment
  SD40101  Erechtites prenanthoides Edith A. Purer 1932-7-27 4135 Humboldt Sand dunes. Comment
  HSC32286  Eremogone congesta var. crassula D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5632 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  HSC57889  Eremogone congesta var. suffrutescens Overton, Butler 1979-7-31 11446 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  JEPS19193  Ericameria greenei Joseph P. Tracy 1919-9-22 5273 Humboldt open places in Shasta fir belt; Trinity Summit 1889 Comment
  UC1792475  Erigeron Thomas W. Nelson, Sydney Carothers 2004-6-18 9253 Humboldt Board Camp Mountain Road 49N38 1 mile from junction with Forest Service Road 1. 1481 Comment
  UC912295  Erigeron biolettii Herbert L. Mason 1928-7-14 4908 Humboldt near Garberville; East Fork Eel River Comment
  CAS-BOT-BC300683  Erigeron foliosus var. mendocinus L. R. Abrams 1916-7-11 6055 Humboldt At mouth of Grizzly Creek on Van Duzon [Duzen] River Comment
  JEPS21932  Erigeron foliosus var. mendocinus Joseph P. Tracy 1930-7-4 8829 Humboldt Bull Creek to Mattole Road (near summit of ridge) 762 Comment
  RSA39091  Erigeron foliosus var. mendocinus P. A. Munz 1948-8-15 12360 Humboldt 1 mile west of Van Duzen Redwood State Park Comment
  UC196573  Erigeron foliosus var. mendocinus Joseph P. Tracy 1916-9-4 4756 Humboldt head of Canoe Creek; Northern Coast Ranges, Grasshopper Ridge, Canoe Creek 609 Comment
  POM261503  Erigeron glaucus S. K. Harris 1936-6-15 3380 Humboldt Trinidad Head Comment
  HSC89429  Erigeron glaucus P. A. Daly 1984-6-16 31 Humboldt Open bluffs of Trinidad Head trail 61 Comment
  POM357512  Erigeron glaucus J. P. Smith, T. W. Nelson 1977-6-30 9208 Humboldt Samoa Peninsula just east of the drag strip. Comment
  UC169351  Erigeron inornatus var. inornatus Joseph P. Tracy 1912-7-31 3948 Humboldt near the summit Buck Mountain 1676 Comment
  RSA0010343  Erigeron klamathensis Joseph P. Tracy 1937-7-24 15515 Humboldt Trinity Summit, 2 miles SE of Devil's Hole. 1585 Comment
  HSC104065  Erigeron maniopotamicus John McRae 2009-6-25 Humboldt Six Rivers National Forest; along FS Rd. 1N08 1280 Comment
  RSA47128  Erigeron philadelphicus Doris K. Kildale 1925-6-20 717 Humboldt Big Lagoon Comment
  CAS-BOT-BC214591  Erigeron philadelphicus John Thomas Howell 1931-6-17 6717 Humboldt At mouth of Van Duzen River Comment
  UC153941  Erigeron philadelphicus var. philadelphicus J. P. Tracy 1910-10-1 3162 Humboldt immediate vicinity Eureka 0 Comment
  UC169013  Eriodictyon californicum Harley P. Chandler June, 1901 1352 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 152 Comment
  UC906676  Eriodictyon californicum Joseph P. Tracy 1947-7-5 17795 Humboldt near Mud Springs Trinity Summit (Trinity Summit); , near Mud Springs 1371 Comment
  HSC70699  Eriogonum compositum Gail Newton 1980-7-15 1553 Humboldt Near Sims Mtn. 1311 Comment
  UC672919  Eriogonum compositum var. compositum Joseph P. Tracy 1932-7-12 10460 Humboldt head of Brett Hole Trinity Summit, Brett Hole 1828 Comment
  CAS-BOT-BC248808  Eriogonum compositum var. compositum Volney Rattan 1883-6-1 s.n. Humboldt Summit bet. Mad R. & Pilot Cr. Comment
  LA206930  Eriogonum latifolium Carl Epling; Mrs. Epling 1935-8-15 sn Humboldt Arcata Spit Comment
  CAS-BOT-BC259538  Eriogonum luteolum var. luteolum Joseph P. Tracy 1938-8-14 16120 Humboldt South Fork of Trinity River: mountain slopes west of its mouth 304 Comment
  UC1198139  Eriogonum nudum var. nudum Joseph P. Tracy 1939-8-20 16430 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  UCR32155  Eriogonum nudum var. nudum David J. Keil 1983-7-1 17272 Humboldt North Coast Range, Bull Creek Flats [Mattole] Road, c. 13 mi. west of junction with US Hwy 101 Comment
  OBI82417  Eriogonum nudum var. nudum Dennis Anderson, D Santana, J Lackey 1971-7-15 5265 Humboldt Trinity CO. : Along 1 SO 7, T 29 N, R 6 E, secs. 29, 30, along Shanty Creek, CA. 5 miles west of Ruth Dam. 1341 Comment
  CAS-BOT-BC261727  Eriogonum nudum var. oblongifolium Harley P. Chandler 1901-6-1 1442 Humboldt Klamath River 304 Comment
  UC176685  Eriogonum nudum var. oblongifolium Joseph P. Tracy 1912-7-21 3761 Humboldt Alton Norther Coast Ranges, Alton 30 Comment
  UC146154  Eriogonum nudum var. oblongifolium Joseph P. Tracy 1908-7-1 2896 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers); Northern Coast Ranges 609 Comment
  SEINET11945862  Eriogonum nutans var. nutans Tiehm 1995-5-21 12092 Humboldt extreme S end of Bilk Creek Mts, just NW of Sod House near where the Quinn River crosses hwy 140 1326 Comment
Read comments
Jun 2 2019
  HSC54720  Eriogonum umbellatum Overton, Butler 1979-7-26 10095 Humboldt Near Cold Spring, close to the town of Willow Creek 1417 Comment
  JEPS56193  Eriogonum umbellatum var. argus W. L. Jepson 1902-7-25 2119 Humboldt Trinity Summit Comment
  HSC73479  Eriogonum umbellatum var. speciosum Gail Newton 1980-7-11 1330 Humboldt Near Red Mtn. 1341 Comment
  HSC54892  Eriogonum umbellatum var. stellatum G. L. Clifton, Griswold 1979-7-25 10932 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC55126  Eriogonum umbellatum var. stellatum G. L. Clifton, Griswold 1979-8-1 11930 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1692 Comment
  HSC70697  Eriogonum umbellatum var. stellatum Gail Newton 1980-7-15 1556 Humboldt Near Sims Mtn. 1311 Comment
  RSA249330  Eriophorum crinigerum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5566 Humboldt Westward lower slopes of Black Lassic near Trinity County line 1585 Comment
  HSC5610  Eriophyllum lanatum H. D. Sumner 1959-7-14 Humboldt Between Hoopa and Redwood Creek 305 Comment
  UC129578  Eriophyllum lanatum var. arachnoideum Joseph Burtt Davy and Walter C. Blasdale Jun 16 1899-Jan 1 1900 5563 Humboldt Alton North-Western California, Alton Comment
  UC165841  Eriophyllum lanatum var. arachnoideum Joseph P. Tracy 1906-7-15 2539 Humboldt Table Bluff Northern Coast, Region about Humboldt Bay, Table Bluff 0 Comment
  RSA92676  Eriophyllum lanatum var. arachnoideum F. W. Peirson 1926-7-12 7029 Humboldt West slope of Coast Range back of Orick. Comment
  UC90272  Eriophyllum lanatum var. lanceolatum Volney Rattan Jul 1878 Humboldt Comment
  UC161540  Erysimum capitatum Joseph P. Tracy 1908-6-8 2636 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC492245  Erysimum capitatum Joseph P. Tracy 1932-7-18 10706 Humboldt head Brett Hole; Klamath Mountains, Trinity Summit 1828 Comment
  SFV18510  Erysimum capitatum var. capitatum D. Waller 2002-4-13 33 Humboldt Near Horse Mountain, 3 miles up Titlow Hill Road. 915 Comment
  CAS-BOT-BC54919  Erysimum menziesii Joseph P. Tracy 1904-4-24 2031 Humboldt Ocean Beach at Humboldt Bay. Comment
  CHSC31281  Erysimum menziesii Mark Stopher 1980-4-2 46 Humboldt On sand dunes of the Samoa peninsula at Humboldt Bay. 4 Comment
  HSC6787  Erysimum menziesii J. R. Woodside 1963-3-10 40 Humboldt 1.25 mi. N of Fairhaven. Comment
  UC1197647  Erythronium californicum Joseph P. Tracy 1941-4-8 16848 Humboldt serpentine formation along Trinity Hwy Willow Creek Canyon 609 Comment
  UC1222542  Erythronium californicum Joseph P. Tracy 1950-4-20 18616 Humboldt two mi w Dinsmore's (lower foothills of nw slope of mountain); Buck Mountain 762 Comment
  POM169641  Erythronium revolutum H. P. Chandler 1901-06 1279 Humboldt Hupa Indian Reservation Comment
  HSC104325  Erythronium revolutum James Regan, Humboldt Redwood Co., LLC 2007-5-9 23 Humboldt Kneeland 854 Comment
  SEINET12104680  Eschscholzia californica E. A. York 1990-1-10 2705 Humboldt USGS Redwood Field Station, Arcata Comment
  HSC58766  Eucephalus ledophyllus Terry Griswold 1979-7-26 10220 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1981 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
  UC604672  Euchiton sphaericus Joseph P. Tracy 1938-9-4 16142 Humboldt along new road to Hars LInto Creek; Trinity River Valley 243 Comment
  BLMAR290  Euonymus occidentalis var. occidentalis Jennifer Anthony-Wheeler 2001-5-22 290 Humboldt Headwaters Forest Reserve, growing shaded streambank by ' babbits ridge ' 335 Comment
  UC1198982  Euphorbia spathulata Joseph P. Tracy 1947-5-10 17678 Humboldt near Briceland 457 Comment
  UC302982  Euphorbia spathulata Joseph P. Tracy 1926-5-9 7455 Humboldt near Bridgeville; Northern Coast Ranges 762 Comment
  CAS-BOT-BC312206  Eurybia radulina Carl B. Wolf 1937-9-8 9301 Humboldt 11 mi. W. of Redwood Highway, Bull Creek - Petrolia Road, North Coast Range 304 Comment
  CAS-BOT-BC312210  Eurybia radulina Doris K. Kildale 1926-8-22 2588 Humboldt On Orick - Martin's Ferry Road 716 Comment
  HSC37664  Eurybia radulina R. Sutherland 1976-8-18 15 .18876 Humboldt Disturbed edge of country road 207 Comment
  UC165017  Eurybia radulina Joseph P. Tracy 1909-9-12 3082 Humboldt region about Humboldt Bay, Humboldt Hill Humboldt Bay, Humboldt Hill 152 Comment
  UCSB1573  Fallopia sachalinensis Parks, H.; Parks, S. 1952-07 Humboldt South of the Elk River Bridge on Highway 10 Comment
  CAS-BOT-BC282500  Festuca elmeri Doris K. Kildale 1928-6-24 5286 Humboldt Horse Mountain 914 Comment
  POM112463  Festuca idahoensis H. P. Chandler 1901-06 1366 Humboldt Hupa Indian Reservation. 152 Comment
  SEINET200326  Festuca myuros J. P. Tracy 1914-5-14 4432 Humboldt Northern Coast Ranges Fort Seward. 122 Comment
  HSC40969  Festuca occidentalis Linda M. Barker 1976-6-14 1598 Humboldt 3 mi. W of Arcata Comment
  UC70910  Festuca occidentalis Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5472 Humboldt near Elk Prairie Comment
  CAS-BOT-BC278969  Festuca rubra W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula [Peninsula] Comment
  CAS-BOT-BC282515  Festuca subbiflora W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek and Eel River Comment
  CAS-BOT-BC282516  Festuca subbiflora W. R. Dudley 1899-6-20 s.n. Humboldt Bull Creek and Eel River Comment
  HSC81919  Festuca subulata Thomas W. Nelson, Jane P. Nelson 1979-7-3 4968 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  SEINET3827552 Image available Festuca subuliflora T. R. Van Devender, R. K. Van Devender 1990-1 90 -102 Humboldt Cal-Barrel Road in Redwood National Forest; dense old-growth redwood forest. Comment
  HSC38631  Festuca viridula D. E. Anderson, J. P. Smith 1971-6-14 - 1050 Humboldt Along railroad tracks at P.G.&E. power plant S of Eureka. Comment
  UC1197363  Foeniculum vulgare Joseph P. Tracy 1930-10-12 9216 Humboldt Eel R. Alton to Fortuna; Eel R. 15 Comment
  CAS-BOT-BC453524  Fragaria chiloensis Bolemanson 1908-5-15 s.n. Humboldt Samoa Comment
  HSC95822  Fragaria chiloensis Steven Lee 2004-3-23 5 Humboldt Manila Dunes, Vera Ln. Dune Community Comment
  SD39959  Fragaria chiloensis Charlotte M. Hoak 1931-7-14 2103 Humboldt Eureka, sand dunes on bar Comment
  HSC18610  Fragaria vesca D. E. Anderson 1965-5-1 3558 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  HSC68717  Fragaria vesca Jacqueline Greenleaf 1980-5-23 88 Humboldt Near Dinsmores 735 Comment
  UCSB22387  Fragaria vesca Jensen, Karen 1965-4-15 Humboldt 0.2 km west of Highway 101 near Miranda. 91 Comment
  CAS-BOT-BC437050  Fragaria vesca subsp. bracteata M. S. Jussel 1931-5-2 s.n. Humboldt Sylvandale 8 miles norht of Garberville Comment
  UCD112747  Frangula californica Carl B. Wolf 1934-6-30 5842 Humboldt back of Shelter Cove. Comment
  UCSB24343  Frangula californica Constance, Lincoln 1934-6-13 Humboldt East bank of south fork Eel River, North Dyerville Flat, just below Redwood Highway. Comment
  SBBG26928  Frangula californica subsp. californica C. B. Wolf 1934-6-30 5842 Humboldt back of Shelter Cove 60 Comment
  SBBG26940  Frangula purshiana subsp. purshiana H. E. and S. T. Parks -May-1935 5541 Humboldt Spruce Cove, Trinidad 64 Comment
  SEINET200390  Frasera speciosa Joseph P. Tracy 10731 Humboldt Trinity Summit , Open places at Corral Prairie. 1585 Comment
  SEINET200756  Frasera speciosa Joseph P. Tracy 1917-9-2 4851 Humboldt Grouse Mt. 1524 Comment
  UC54925  Fraxinus latifolia Mrs. M. H. Manning 1902-4 Humboldt near Hupa Comment
  UC176688  Fritillaria affinis Joseph P. Tracy 1913-6-17 4179 Humboldt Buck Mountain, near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  UC1225860  Fritillaria affinis Joseph P. Tracy 1947-4-27 17674 Humboldt Table Bluff, on Tompkins Hill Road Table Bluff; , Tompkins Hill Road 152 Comment
  UC30119  Fritillaria recurva W. C. Blasdale 1896-6-9 Humboldt Pilot Ridge Comment
  HSC16382  Fuchsia magellanica var. discolor T. M. Mingo May 1965 Humboldt About 3 mi. N of College Cove Comment
  CAS-BOT-BC422450  Fumaria officinalis Joseph P. Tracy 1949-4-1 18277 Humboldt Eureka 30 Comment
  RSA654821  Fumaria officinalis Gordon Leppig, Sylvia Leppig 2000-12-7 1523 Humboldt Arcata, 7th and I Street just west of Post Office 6 Comment
  HSC100647  Galium Carl C. Marshall 76 Humboldt No data. Comment
  HSC71743  Galium ambiguum M. A. Baker 1980-6-26 2427 Humboldt Near Sims Creek 610 Comment
  UC213147  Galium boreale subsp. septentrionale Joseph P. Tracy 1920-8-15 5357 Humboldt Bluff Creek Northern Coast Ranges, Klamath River 152 Comment
  RSA47104  Galium californicum Doris K. Kildale 1925-7-19 1053 Humboldt Bridgeville. 290 Comment
  UC1225914  Galium divaricatum Joseph P. Tracy 1946-7-13 17614 Humboldt 5 mi e Carlotta (by old Strong's District School House) 60 Comment
  JEPS25040  Galium muricatum Andrew P. Nelson 1960-7-19 625 Humboldt Nelson Grove S. fork of Eel River, Humboldt Redwoods State Park (rocky bank of river) Comment
  JEPS6494  Galium parisiense Joseph P. Tracy 1937-7-11 15421 Humboldt Garberville 152 Comment
  UC602546  Galium parisiense Joseph P. Tracy 1937-7-11 15421 Humboldt Garberville 152 Comment
  UC602521  Galium porrigens var. porrigens Joseph P. Tracy 1924-8-10 6816 Humboldt Blue Slide Van Duzen River 91 Comment
  HSC57191  Galium triflorum Griswold, Butler 1979-7-11 6908 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  RSA41964  Galium triflorum Ella Dales Cantelow 1936-5-17 1407 Humboldt 3 miles S of Orick Comment
  HSC100644  Galium triflorum Carl C. Marshall May 1886 210 Humboldt Woods everywhere. Comment
  HSC72801  Garrya buxifolia Gail Newton 1980-6-17 212 Humboldt Near Onion Mtn. 1341 Comment
  RSA46715  Garrya buxifolia Doris K. Kildale 1937-8-15 15331 Humboldt High Divide Comment
  UC1196890  Garrya buxifolia Joseph P. Tracy 1933-7-11 12677 Humboldt Horse Mountain 1402 Comment
  CAS-BOT-BC188537  Garrya elliptica Doris K. Kildale 1926-9-12 2667 Humboldt Klamath River near Requa. On trail between Ferry and bridge Comment
  UC154056  Garrya elliptica J. P. Tracy 1900-12-22 975 Humboldt immediate vicinity Eureka 0 Comment
  SEINET12137511  Garrya elliptica M. S. Taylor 1982-1 5181 Humboldt Samoa, under bridge, ca 1 mi NW of Eureka Comment
  CAS-BOT-BC182174  Garrya fremontii Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. Trail 1371 Comment
  HSC47959  Garrya fremontii Brad Klipfel 1975-5-24 650 Humboldt Horse Mtn. Comment
  HSC8392  Garrya fremontii C. B. Wolf 1930-10-24 1762 Humboldt Along Klamath River 1.0mi above mouth of Slate Creek 244 Comment
  HSC8400  Garrya fremontii D. E. Anderson 1965-4-24 3537 Humboldt Along Titlow Hill Rd. 2 mi. from its junction with Hwy. 299 Comment
  HSC8404  Garrya fremontii C. B. Wolf 1927-8-28 1169 Humboldt Lord Ellis Rd. to Blue Lake, 9 mi. from Willow Creek, 2 mi. below grade summit Comment
  UCD39984  Garrya fremontii Rodney Gale Myatt 1971-9-21 1189 Humboldt Near Orleans, northeast of Hoopa Reservation, and along Klamath River. 426 Comment
  CAS-BOT-BC282613  Gastridium phleoides L. R. Abrams 1916-7-11 6025 Humboldt Mouth of Grizzly Creek on Van Duzen River Comment
  CAS-BOT-BC282615  Gastridium phleoides Henry M. Pollard 1944-9-17 s.n. Humboldt Near Orleans Comment
  POM198468  Gastridium phleoides Le Roy Abrams 1916-7-11 6025 Humboldt Mouth of Grizzly Creek on Van Duzen River. Comment
  HSC53968  Gaultheria ovatifolia Griswold, Butler 1979-7-11 7025 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  HSC41340  Gaultheria shallon Brad Klipfel 1974-9-7 560 Humboldt Horse Mtn., E fork of Willow Creek. Comment
  RSA18144  Gaultheria shallon C. B. Wolf 1927-8-22 804 Humboldt 1 mile south of Orick. Comment
  UC719770  Gaultheria shallon Rogers McVaugh 1941-8-3 6219 Humboldt 1 1/4 mi s of Headquarters of Patrick's Point State Park Comment
  SEINET2031090 Image available Gaultheria shallon Joseph P. Tracy 1908-1 2863 Humboldt Valley of Van Duzen River; opposite Buck Mountain 762 Comment
  HSC74175  Gayophytum diffusum subsp. parviflorum M. A. Baker 1980-7-23 3157 Humboldt Near Orleans Mtn. 1859 Comment
  UC1196966  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1933-7-26 12914 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  POM247151  Gayophytum heterozygum Joseph P. Tracy 1933-8-30 13045 Humboldt North Coast Ranges: Grouse Mountain 1524 Comment
  HSC102240  Gentiana plurisetosa Sydney Carothers 2011-9-17 Humboldt Bret Hole; 1.1 km SW of Trinity Summit 1579 Comment
  RSA46825  Gentiana plurisetosa Doris K. Kildale 1925-8-17 s.n. Humboldt Trinity Summit 1829 Comment
  UC153981  Gentiana sceptrum J. P. Tracy 1906-7-1 2516 Humboldt immediately vicinity Eureka 0 Comment
  UC179966  Gentiana sceptrum Joseph P. Tracy 1914-9-6 4610 Humboldt between High Prairie and Snow Camp; Northern Coast Ranges, Bald Mountain 1219 Comment
  UCD23455  Gentiana sceptrum K. Niles 1950-9-20 s.n. Humboldt Big Lagoon. Comment
  UC1198642  Gentiana sceptrum Joseph P. Tracy 1920-8-29 5393 Humboldt Dows Prairie Northern Coast Ranges 45 Comment
  UC1198952  Geranium core-core Joseph P. Tracy 1909-5-23 2977 Humboldt Eureka Northern Coast Region 0 Comment
  UC195434  Geranium dissectum Joseph P. Tracy 1915-6-27 4656 Humboldt Carlotta 60 Comment
  HSC95593  Geranium dissectum Andrea Pickart 2002-5-24 110 Humboldt CDFG's Mad River Slough Wildlife Area, Arcata Bottoms 0 Comment
  JEPS61429  Geranium molle Lincoln Constance 1934-5-23 607 Humboldt above Look Prairie; South Fork Eel River, Bull Creek Region 365 Comment
  UC165813  Geranium molle Joseph P. Tracy 1901-5-12 1074 Humboldt Eureka Northern Coast Region 0 Comment
  UC1198960  Geranium oreganum Joseph P. Tracy 1935-5-25 13880 Humboldt Fort Seward 106 Comment
  HSC99453  Geum macrophyllum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 104 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  UC154213  Geum macrophyllum var. macrophyllum J. P. Tracy 1901-6-23 1171 Humboldt immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC226145  Gilia capitata subsp. pacifica Doris K. Kildale 1925-6-28 794 Humboldt Kneeland Prairie - bald hills 762 Comment
  CAS-BOT-BC226156  Gilia capitata subsp. pacifica Doris K. Kildale 1927-5-15 3168 Humboldt Back of Cape Mendocino Comment
  POM193010  Gilia capitata subsp. pacifica H. E. Parks, Joseph P. Tracy 1930-5-25 0793 Humboldt Near Bridgeville. Comment
  HSC23827  Gilia millefoliata Tim Baroni 1971-6-26 64 Humboldt Out the Samoa Peninsula just opposite the Georgia Pacific pulp mill Comment
  HSC48774  Gilia millefoliata Brad Klipfel 1975-5-22 623 Humboldt Near city of Eureka airport S of Samoa Comment
  HSC90478  Gilia millefoliata Jean Hanson 1981-5-10 131 Humboldt Indian Island, Humboldt Bay, Eureka, W end of island Comment
  UC23729  Gilia millefoliata Harley P. Chandler May, 1901 1135 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 3 Comment
  UC1197905  Gilia tricolor subsp. tricolor Joseph P. Tracy 1929-5-5 8561 Humboldt Miranda Northern Coast Ranges, South Fork of Eel River, Miranda (along South Fork of Eel River) 121 Comment
  BLMAR401  Glyceria elata Clara Sander June, 2005 401 Humboldt Jacoby creek, Jacoby Creek Land Trust, along trail 36 Comment
  HSC58542  Glyceria elata Overton, Butler 1979-7-23 9545 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC58634  Glyceria elata Gilbert Muth 1979-7-31 11530 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  SEINET200358 Image available Glyceria occidentalis J. P. Tracy 1930-8-3 9147 Humboldt Buck Mtn near Little Van Duzen; lower foothills of its NW slope 762 Comment
  SEINET267680 Image available Glyceria occidentalis Gordon Leppig 1995-4-6 243 Humboldt Arcata; Alder Grove Pond. 12 Comment
  POM92418  Gnaphalium chilense L. R. Abrams 1922-6-25 8223 Humboldt 6 miles N of Garberville Comment
  CAS-BOT-BC302537  Gnaphalium palustre H. E. Parks; S. T. Parks 1937-8-1 24080 Humboldt Spruce Cove, Trinidad Comment
  HSC5713  Gnaphalium palustre H. E. Parks, S. T. Parks Aug 1937 24080 Humboldt Trinidad; Spruce Cove Comment
  POM224403  Gnaphalium sphaericum J. T. Howell 1936-8-29 12888 Humboldt Eel River 16 miles N of Garberville. Comment
  UC1225875  Goodyera oblongifolia Joseph P. Tracy 1947-8-24 17907 Humboldt near Box Camp (Trinity Summit); Trinity Summit 1524 Comment
  CAS-BOT-BC304737  Grindelia hirsutula Lester Rowntree 1937-8-15 s.n. Humboldt Big Lagoon Comment
  HSC38496  Grindelia hirsutula R. Sutherland 1976-10-31 1 .311076 Humboldt Disturbed road edge of county road 290 Comment
  HSC95525  Grindelia hirsutula Andrea Pickart 2002-7-19 184 Humboldt Arcata Marsh at Jolly Giant Creek mile .1 10 Comment
  RSA34050  Grindelia hirsutula var. davyi A. A. Heller 1923-7-7 13764 Humboldt Near the S fork of the Eel River, S of Garberville. Comment
  CDA6170  Grindelia stricta var. stricta T. C. Fuller 1961-9-27 7043 Humboldt 1 mile north of Indianola Road, Highway 101, 5 miles north of Eureka. 0 Comment
  RSA509497  Grindelia stricta var. stricta R. D. Goeden 1987-9-2 21 Humboldt Cape Mendocino (Cape Ridge) on bank above Mattole Rd. 183 Comment
  HSC101967  Hackelia californica M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 863 Humboldt Patterson Meadows 1566 Comment
  UC525562  Hackelia californica Joseph P. Tracy 1932-7-12 10428 Humboldt Corral Prairie; Klamath Mountains. Trinity Summit 1524 Comment
  UC1222252  Hackelia californica Joseph P. Tracy 1948-8-15 18154 Humboldt on Ridge 2 mi e Grove's Prairie; Trinity nSummit 1524 Comment
  UC525574  Hackelia micrantha Joseph P. Tracy 1932-7-11 10421 Humboldt Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  HSC56959  Hastingsia serpentinicola Overton, Butler 1979-7-23 9473 Humboldt Near Horse Mtn. Creek, close to the town of Willow Creek 1326 Comment
  CAS-BOT-BC302444  Hazardia whitneyi var. discoidea Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  CAS-BOT-BC306612  Helenium bigelovii L. B. Kildale 1930-8-10 10532 Humboldt Snow Camp, head of Redwood Creek Comment
  JEPS35025  Helenium bigelovii Joseph P. Tracy 1930-7-16 8936 Humboldt at McKay Camp South Fork Mountain 1676 Comment
  UC180187  Helenium bigelovii Joseph P. Tracy 1914-7-4 4540 Humboldt at Murphy Ranch, High Prairie on Bald Mountain Northern Coast Ranges, Bald Mountain 1066 Comment
  UC582769  Helenium bolanderi H. E. Parks and Joseph P. Tracy 1937-7-16 15431 Humboldt Trinidad 60 Comment
  CHSC26961  Helminthotheca echioides M. S. Taylor 1977-8-5 1431 Humboldt Around bridge over Eel River, at the turn off from Hwy 101 to Ferndale, in Fernbridge. Comment
  HSC44129  Hemizonella minima Thomas W. Nelson, Jane P. Nelson 1977-7-4 3608 Humboldt Along road N from Alder Spring 1555 Comment
  UC176471  Hemizonella minima Joseph P. Tracy 1911-7-7 3436 Humboldt ridge n Willow Creek (between Willow and Campbell Creeks, near the summit); Northern Coast Ranges, Brannan Mountain 1219 Comment
  UC1199118  Hemizonella minima Joseph P. Tracy 1934-6-27 13262 Humboldt top of ridge 2 mi s top of mountain; North Coast Ranges, Horse Mountain 1432 Comment
  JEPS12644  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1931-6-28 9598 Humboldt lower foothills of its nw slope Buck Mountain 762 Comment
  UC275452  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1925-7-18 7215 Humboldt Cape Ridge Northern Coast Ranges, Cape Mendocino 304 Comment
  UC495621  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1932-8-21 10364 Humboldt Chaparral Mt., Three Cabins 457 Comment
  UC1197368  Heracleum lanatum Joseph P. Tracy 1948-9-12 18217 Humboldt meadow at Box Camp Trinity Summit; , Box Camp 1463 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
  HSC56157  Heracleum maximum G. L. Clifton, Terry Griswold 1979-8-1 12022 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC98845  Heracleum maximum Cara Witte 2008-7-16 920 Humboldt National Forest Road 4N06. 1 mile west of National Forest 1. 1228 Comment
  SEINET10840490  Heterocodon rariflorum Anderson 1974-6-17 Anderson 5709 Humboldt MCKEOWN RANCH N OF DINSMORE OAK, DOUG FIR WOODLAND. T2N R5E SECS 283334 Comment
  RSA93319  Heterotheca oregona var. rudis F. W. Peirson 1926-7-13 7051 Humboldt Near Blue Lake, Mad River Comment
  JEPS43498  Heuchera micrantha Lincoln Constance 1934-5-26 680 Humboldt South Fork Eel River (North Dyerville Flat Grove, near Founders Tree); Bull Creek Region 48 Comment
  UC1222388  Heuchera micrantha Joseph P. Tracy 1950-6-8 18717 Humboldt 2 mi s Ferndale (at the Sand Cut, Wild Cat Road) Comment
  JEPS49746  Heuchera micrantha var. diversifolia Harley P. Chandler May 1901 1231 Humboldt North Coast Ranges 457 Comment
  HSC57874  Hieracium albiflorum Overton, Butler 1979-7-31 11410 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UC1223082  Hieracium albiflorum Joseph P. Tracy 1947-7-9 17850 Humboldt Horse Mountain 1432 Comment
  UC582417  Hieracium albiflorum Joseph P. Tracy 1929-7-4 8613 1/2 Humboldt French Camp Ridge 1066 Comment
  HSC44090  Hieracium greenei Thomas W. Nelson, Jane P. Nelson 1977-8-6 3714 Humboldt Along the lower S slope of Mt. Lassic (Signal Peak) 1494 Comment
  HSC98950  Hieracium greenei Cara Witte 2007-7-9 466 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1641 Comment
  HSC36309  Hippuris vulgaris David Sohrakoff 1972-11-12 1 Humboldt Clam Beach ponds Comment
  HSC49817  Hippuris vulgaris R. York 1979-4-16 237 Humboldt Between Arcata and Eureka along Hwy. 101 Comment
  UC668291  Hippuris vulgaris Joseph P. Tracy 1938-8-21 16130 Humboldt along coast in front of South End of Stone Lagoon (Dry Lagoon); Dry Lagoon 3 Comment
  HSC61726  Hirschfeldia incana Ruby Van Deventer 1963-7-1 Humboldt Along Klamath River at Pecwan. Comment
  HSC43843  Holodiscus discolor Maralyn O'Meara 1974-5-18 497 Humboldt Fisher Rd. near Carlotta Comment
  HSC58138  Holodiscus discolor Gilbert Muth 1979-8-1 12156 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC98885  Holodiscus discolor Cara Witte 2007-7-9 459 Humboldt Forest Service Road 4N32. 1.4 mile north of intersection with 4N32B. 1413 Comment
  HSC99600  Holodiscus discolor Gilbert Muth 1979-8-1 11881 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  CAS-BOT-BC289564  Hordeum marinum subsp. gussoneanum Henry M. Pollard 1946-8-27 s.n. Humboldt South sid eof Klamath River near Bryce Creek, Orleans region Comment
  HSC31787  Hordeum murinum subsp. leporinum Donald Spalinger 1974-4-25 26 Humboldt Forest across from 1756 Ridgewood Dr. 122 Comment
  CHSC97957  Horkelia tridentata subsp. flavescens April A. Allard; Gregory D. O'Connell 2005-6-24 16 Humboldt Roadside meadow. 1648 Comment
  CAS-BOT-BC537898  Horkelia tridentata var. flavescens Alice Eastwood; John Thomas Howell 1937-6-23 4806 Humboldt Little Van Duzen River 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
  SBBG3396  Hosackia crassifolia var. crassifolia H. and M. Dearing 1933-5-21 895 Humboldt 4 mi S of Orick Comment
  CHSC35550  Hosackia rosea D. E. Anderson 1965-5-8 3666 Humboldt Hw. 299, east of Blue Lake, between bridge over North Fork Mad River and Lord Ellis Summit. Comment
  HSC21513  Hydrocotyle ranunculoides R. L. Jarvis 1962-4-29 34 Humboldt Clam Beach Lagoons, 0.5 mi S of Little River on Hwy 101 0 Comment
  HSC62746  Hydrocotyle ranunculoides J. M. DiTomaso 1979-5-29 1078 Humboldt Arcata Bottoms, 1.7 mi. W of Alliance Rd. on Lanphere Rd. Comment
  UC35519  Hydrophyllum occidentale W. C. Blasdale 1896-6-6 Humboldt McBride's Comment
  HSC53943  Hypericum anagalloides Griswold, Butler 1979-7-11 6982 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  UC175706  Hypericum anagalloides Joseph P. Tracy 1912-7-14 3747 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  CAS-BOT-BC400793  Hypericum anagalloides C. L. Hitchcock; J. S. Martin 1939-7-14 5442 Humboldt 7 miles east of Shelter Cove 243 Comment
  CAS-BOT-BC400795  Hypericum anagalloides Doris K. Kildale 1925-8-17 1241 Humboldt Trinity Summit - Waterdog Lake 1828 Comment
  UC502949  Hypericum anagalloides Joseph P. Tracy Jul 16 1930-Jul 19 1930 8978 Humboldt S. Fork Mt., McKay Camp Northern Coast Ranges, S. Fork Mt., McKay Camp 1676 Comment
  UC1198414  Hypericum perforatum Joseph P. Tracy 1932-8-21 10362 Humboldt lower w. foothills of Chaparral Mt. (Three Cabins); Northern Coast Ranges, foothills of Chaparral Mt., Three Cab 457 Comment
  UCSB23845  Hypericum perforatum Keefe, Joseph 1967-7-8 Humboldt bank of Eel River; Miranda Turnoff; 12.4 miles north of Garberville on U.S. Highway 101 170 Comment
  SDSU6911  Hypericum perforatum D. F Howe 1961-8-2 3118 Humboldt 10.5 miles east of Orick on Bald Mt.road, humboldt, Co. 762 Comment
  CAS-BOT-BC312887  Hypochaeris glabra Alice Eastwood 1923-8-16 12326 Humboldt Carlotta Comment
  HSC90427  Hypochaeris glabra Jean Hanson 1980-6-22 91 Humboldt Indian (Gunther) Island in Humboldt Bay, city of Eureka. W end of island; ca. 100 ft. inland from shore Comment
  HSC39801  Hypochaeris radicata Peter Sorensen 1976-6-11 Humboldt Woodley Island Comment
  UC204783  Hypochaeris radicata Joseph P. Tracy 1918-7-5 5023 Humboldt White Thorn Valley Northern Coast Ranges, White Thorn Valley 304 Comment
  SD58504  Iliamna latibracteata Joseph P. Tracy 1949-9-1 18525 Humboldt Willow Creek Canyon, along Trinity Highway. 762 Comment
  UC902184 Image available Iliamna latibracteata Joseph P. Tracy 1948-8-15 18151 Humboldt near Elk Camp, on Ridge 2 miles east of Grove's Prairie; Trinity Summit. 1493 Comment
Read comments
Feb 27 2012
  SEINET4170668  Iris W. W. Eggleston 1913-6-8 6 Humboldt Calaveras Ranger Station. 1000 Comment
  HSC23734  Iris douglasiana Tim Baroni 1971-7-5 101 Humboldt 8 mi. E of Petrolia Comment
  POM87943  Iris douglasiana Le Roy Abrams, Rimo C. Bacigalupi 8274 Humboldt Big Lagoon, south of Orick. Comment
  JEPS79908  Iris macrosiphon Joseph P. Tracy 1941-3-23 16808 Humboldt 3 mi w Bridgeport (near e margin of redwood belt through s Humboldt County) 198 Comment
  JEPS86127  Iris macrosiphon Wayne Roderick 1966-5-5 Humboldt ca 5 mi n Bridgeville 609 Comment
  UC1174845  Iris purdyi P. C. Everett and E. K. Balls 1959-10-26 23976 Humboldt 5.3 mi se Honeydew (along Old Coast Road to Ettersburg) 426 Comment
  UC275564  Iris purdyi Joseph P. Tracy 1924-7-4 6715 Humboldt Snow Camp; Northern Coast Ranges 1371 Comment
  HSC65229  Iris tenax subsp. klamathensis T. Jimerson, J. Pageau 1979-5-1 444 Humboldt 3.6 mi. N of Orleans on FS Rd. 15N01 Comment
  JEPS93202  Iris tenax subsp. klamathensis Carol A. Wilson 1986-5-15 86 -4 Humboldt near Orleans (along road (Orleans Alternate/Ishi Pishi Rd) where crosses Ishi Pishi Bridge just s of Somes Bar); Orleans Alternate/Ishi Pishi Rd Comment
  CAS-BOT-BC88652  Isatis tinctoria Henry M. Pollard 1948-7-26 s.n. Humboldt Near mouth of Camp Creek, near Orleans. Comment
  HSC75280  Isoetes bolanderi J. O. Sawyer, D. A. Thornburgh 1980-9-9 4075 Humboldt Mill Creek Lake and surrounding meadows Comment
  HSC37968  Isolepis cernua Peter Sorensen 1976-6-19 Humboldt Woodley Island Comment
  HSC90882  Isolepis cernua Gail Newton 1982-6-10 3596 Humboldt Elk River Wildlife Area, Eureka Comment
  RSA246913  Isolepis cernua Robert F. Thorne, Percy C. Everett 1965-8-7 35183 Humboldt Big Lagoon. 2 Comment
  CAS-BOT-BC109923  Juncus L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek road. Comment
  HSC85848  Juncus balticus subsp. ater L. P. Janeway 1983-9-24 699 Humboldt S side of Big Lagoon at county camp ground, 10-30 ft. from water line 3 Comment
  POM126145  Juncus bolanderi Joseph P. Tracy 1924-7-13 6730 Humboldt Big Lagoon. 6 Comment
  CHSC43010  Juncus breweri L. P. Janeway 1987-7-31 2538 Humboldt Vicinity of Eureka; North Spit of Humboldt Bay near the SE corner of Eureka City Airport. 3 Comment
  HSC14013  Juncus breweri S. J. Moore 1965-5-3 6 Humboldt Gold Beach near waters edge by lake Comment
  HSC90771  Juncus bufonius Gail Newton 1982-6-10 3602 Humboldt Elk River Wildlife Area, Eureka Comment
  UC1152112  Juncus bufonius Joseph P. Tracy 1927-6-19 8197 Humboldt Big Lagoon Comment
  UC1541651  Juncus bufonius Harold E. Parks Mar 1933 4300 Humboldt Spruce Cove Trinidad Comment
  RSA15622  Juncus effusus subsp. pacificus Carl B. Wolf 1927-8-30 1260 Humboldt 3 miles S of Thorn Comment
  JEPS67119  Juncus kelloggii Joseph P. Tracy 1914-5-14 4431 Humboldt Fort Seward 121 Comment
  HSC56989  Juncus laccatus Walter Overton, Marvin Butler 1979-7-23 9552 Humboldt Near Titlow Hill, close to the town of Willow Creek 1280 Comment
  HSC67453  Juncus laccatus J. P. Smith, Steve Selva 1970-6-30 4124 Humboldt Comment
  UC213333  Juncus parryi Joseph P. Tracy 1919-9-22 5272 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  UC249816  Juncus phaeocephalus Joseph P. Tracy 1924-7-13 6733 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UC302167  Juncus phaeocephalus Joseph P. Tracy 1925-10-18 7293 Humboldt Big Lagoon Northern Coast Region 6 Comment
  HSC58135  Juniperus communis var. saxatilis Gilbert Muth 1979-8-1 12143 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC20979  Keckiella corymbosa John Warner Hosking 1968-10-10 Humboldt Hwy. 299, 30 mi. W of Willow Creek Comment
  HSC23720  Keckiella corymbosa Tim Baroni 1971-7-5 96 Humboldt W bank of the Mattole River Comment
  HSC74728  Keckiella corymbosa Gail Newton 1981-7-22 2263 Humboldt Near Bug Creek 1375 Comment
  RSA244957  Kickxia elatine David Johnson 1973-11-15 s.n. Humboldt Growing along West End Rd. ca 50 yds. north of the highway 101 overpass. Beside the railroad tracks. Comment
  RSA246668  Kickxia elatine Robert F. Thorne, Percy C. Everett 1965-8-8 35262 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  CDA2756  Kniphofia uvaria Gordon Leppig, Sylvia Leppig 2000-4-9 1287 Humboldt Arcata Marsh and Wildlife Refuge. Southeast corner of Klopp Lake dike, Arcata. Comment
  UC50518  Koeleria macrantha Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5771 Humboldt Trinity Summit Comment
  UC1196121  Kopsiopsis strobilacea Joseph P. Tracy 1918-5-28 4936 Humboldt Northern Coast Ranges. High Prairie on Bald Mountain, High Prairie and Redwood Creek. Comment
  UC205187  Kyhosia bolanderi Joseph P. Tracy 1919-9-18 5252 Humboldt meadow McKay; Trinity summit 1524 Comment
  UC668198  Lagophylla ramosissima Joseph P. Tracy 1938-7-4 15993 Humboldt Valley of South Yager Creek 762 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
  UC577363  Lamium amplexicaule Joseph P. Tracy 1934-7-12 13380 Humboldt Eureka; Northern Coast Ranges 0 Comment
  HSC58231  Lapsana communis Walter Overton 1979-8-1 12379 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  SDSU2761  Lapsana communis D. F. Howe 1959-8-4 2802 Humboldt 86 mi. west of Weaverville on #299. 305 Comment
  UC1199135  Lasthenia californica subsp. californica Joseph P. Tracy 1932-5-1 9856 Humboldt Redway 182 Comment
  UC166223  Lasthenia californica subsp. californica J. P. Tracy 1905-4-30 2177 Humboldt Ocean beach Opp. Eureka Comment
  UC195066  Lasthenia glaberrima Joseph P. Tracy 1916-6-19 4720 Humboldt Dobbyn Creek Northern Coast Ranges, Dobbyn Creek 182 Comment
  UCD107019  Lathyrus cicera Joseph P. Tracy 1942-6-15 17133 Humboldt at Englewood near Redcrest resort. 91 Comment
  POM128967  Lathyrus jepsonii subsp. californicus M. H Manning 1900-1 s.n. Humboldt Hupa Valley Comment
  UC495712  Lathyrus littoralis Joseph P. Tracy 1929-7-4 8641 Humboldt near Samoa; Northern Coast Ranges 6 Comment
  HSC97937  Lathyrus nevadensis subsp. nevadensis Cara Witte 2007-5-31 148 Humboldt Along National Forest 1. Approximately 1 mile south of 4E27. 1489 Comment
  POM277779  Lathyrus polyphyllus Lyman Benson 1928-7-9 379 Humboldt Weott Ranger Station. Seaward N coast. Watershed- South Fork Eel Rivers. 61 Comment
  UC1222408  Lathyrus polyphyllus Joseph P. Tracy 1949-8-11 18474 Humboldt 2-6 mi s Grouse Mt. (ridge e of headwaters of Redwood Creek, where power line crosses); Kinsey Ridge 1280 Comment
  UC1222410  Lathyrus polyphyllus Joseph P. Tracy 1948-5-31 18008 Humboldt near Harris (0.5 mi w and up hill toward Spruce Grove) Comment
  UCD106339  Lathyrus polyphyllus K. Esau 1934-5-8 s.n. Humboldt Above Fort Seward. 457 Comment
  HSC95459  Lathyrus sulphureus D. K. Imper 1993-6-25 Humboldt Table Bluff Ecological Reserve near Lighthouse Ranch, Table Bluff. 15 Comment
  UC15357  Lathyrus torreyi H. N. Bolander 1867-1 6506 Humboldt Shelter Cove Comment
  HSC39197  Lathyrus torreyi D. E. Anderson, J. P. Smith 1971-7-6 - 1328 Humboldt 1.0 mi. W of Pine Ridge Summit, 6 mi. E of junction with Redwood Valley Rd. Comment
  UC1222403  Lathyrus torreyi Joseph P. Tracy 1942-6-28 17272 Humboldt e of Korbel (on Murphy Ridge beyond the meadows); Bald Mountain, Murphy Ridge Comment
  HSC23072  Lathyrus tracyi Richard Spjut 1971-5-7 1859 Humboldt 2-4 mi. up Three creeks Rd., W of Willow Creek 457 Comment
  HSC5911  Layia carnosa J. W. Johnson 1962-4-18 1272 Humboldt Arcata, between the Mad River mouth and the Hunt Farm, Samoa Peninsula. Comment
  UC1565646  Layia carnosa Ken S. Berg 1987-5-30 Humboldt s of mouth of Mattole River; Mattole River Dunes Comment
  UC204699  Layia gaillardioides Joseph P. Tracy 1918-7-1 4982 Humboldt Cape Mendocino 3 Comment
  RSA249507  Ledum glandulosum subsp. columbianum R. F. Thorne, Percy C. Everett, K. Thorne 1965-8-9 35295 Humboldt Big Lagoon. 3 Comment
  HSC5926  Leontodon saxatilis subsp. saxatilis S. R. Johnson 1965-3-15 12 Humboldt 1 mi. N of Luffenholtz Beach Comment
  UC1239531  Leontodon saxatilis subsp. saxatilis Joseph P. Tracy 1921-7-10 5848 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  UC535713  Leptosiphon latisectus Eleanor Armstrong 1934-5-18 Humboldt Richardson Grove 121 Comment
  HSC79326  Lessingia nemaclada D. K. Imper 1982-8-27 Humboldt 1.5 mi. S of junction with FS 2S05 on FS 8E05, Six Rivers National Forest. Comment
  UC34537  Lessingia nemaclada Hy-Am Pum 1888-7-23 Humboldt Comment
  SEINET7881646 Image available Leucanthemum vulgare H. E. Parks, S. T. Parks 1943-1 24257 Humboldt Spruce Cove, Trinidad 60 Comment
  UC963848  Leucanthemum vulgare H. E. Parks and S. T. Parks Aug 1943 24257 Humboldt Spruce Cove; Trinidad 60 Comment
  HSC102511  Lewisia nevadensis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1496 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  UC526792  Leymus X vancouverensis Joseph P. Tracy 1930-7-21 8894 Humboldt s point of the Cape (near ocean shore); Cape Mendocino 3 Comment
  RSA10017  Leymus mollis subsp. mollis Joseph P. Tracy 1927-5-1 7954 Humboldt Sand dunes near Samoa, on Humboldt Bay 6 Comment
  UC573707  Leymus mollis subsp. mollis H. S. Yates 1936-6-18 5727 Humboldt near mouth of Little River; Eureka Quadrangle 4 Comment
  POM160887  Leymus triticoides Joseph P. Tracy 1918-7-6 5063 Humboldt South Fork of Eel River near the Humboldt-Mendocino County Line 152 Comment
  HSC99522  Ligusticum apiifolium K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 185 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  JEPS14227  Ligusticum apiifolium Joseph P. Tracy 1937-8-15 15666 Humboldt 4 mi. e. Orick (Gans Prairie); Gans Prairie 548 Comment
  JEPS17504  Ligusticum apiifolium W. L. Jepson 1902-6-30 1959 Humboldt on Hupa Rd. near Redwook Creek Comment
  UC642267  Ligusticum californicum Joseph P. Tracy 1937-8-12 15633 Humboldt Snow Camp 1402 Comment
  HSC102534  Ligusticum grayi M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1520 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  UC1197169  Ligusticum grayi Joseph P. Tracy 1932-7-12 10444 Humboldt Trinity Summit, Corral Prairie 1584 Comment
  HSC12923  Ligustrum ovalifolium Steve Dorei 1970-12-4 87 Humboldt HSC Campus, W side of rd. leading to Wildlife Building Comment
  UC1198267  Lilaea scilloides Joseph P. Tracy 1933-5-20 12274 Humboldt back of Cape Mendocino; Cape Ridge Comment
  UC1222551  Lilaea scilloides Joseph P. Tracy 1950-6-18 18844 Humboldt s of point Cape Mendocino (at Davis Creek) 3 Comment
  HSC45280  Lilium columbianum Clifton Raymond Chesbrough 1971-7-5 40 Humboldt Along Fickle Hill Rd. Comment
  JEPS109810  Lilium kelloggii Dean W. Taylor 2004-6-23 19116 Humboldt Fickle Hill Road 1.3 miles north of junction Butler Valley Road 542 Comment
  UC666951  Lilium pardalinum Joseph P. Tracy 1930-7-17 8999 Humboldt McKay Camp; South Fork Mountain 1676 Comment
  HSC102580  Lilium pardalinum subsp. shastense M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1567 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC98082  Lilium pardalinum subsp. vollmeri Cara Witte 2007-7-3 418 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. 1/2 mile east from intersection with National Forest 1. 1397 Comment
  UC1198232  Lilium rubescens J. P. Tracy 1908-7-31 2936 Humboldt near Bridgeville 152 Comment
  UC54669  Lilium rubescens Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  UCR39794  Lilium rubescens D. K. Imper 1983-7-11 s.n. Humboldt Six Rivers National Forest. Forest Service Road 10N14 c. 2 mi north of junction with 13N01, north of Blue Lake 762 Comment
  CHSC19489  Limnanthes douglasii Norman Dennis 1965-6-11 113 Humboldt About 1/4 mile south and 1 mile east of the junction of Barry Ridge Road and the Eureka-Bridgeville county road, along Ashfield Ridge Road. About 5 miles southeast of Kneeland. 792 Comment
  UC1197412  Limnanthes douglasii Joseph P. Tracy 1911-6-29 3269 Humboldt near Hydesville (on gravel bars of Van Duzen River and Yager Creek); Northern Coast Region 60 Comment
  UC249575  Limnanthes douglasii Joseph P. Tracy 1921-4-24 5476 Humboldt Phillipsville Northern Coast Ranges (slopes facing South Fork of Eel River) 121 Comment
  SD129683  Limnanthes douglasii var. nivea Barbara Ertter, Thomas J. Delendick 1987-5-16 6925 Humboldt Vista Point just west of Berry Summit on Highway 299, ca. 15 miles east of Arcata. 914 Comment
  UC1198596  Linanthus androsaceus Joseph P. Tracy 1927-6-12 8168 Humboldt Horse Mountain Northern Coast Ranges 1066 Comment
  UC906690  Linanthus bicolor Joseph P. Tracy 1942-5-16 17344 Humboldt Garberville 152 Comment
  HSC12370  Linum bienne Steve Dorei 1970-10-9 99 Humboldt Humboldt State College Campus near Union St., just S of the fish hatchery. Comment
  HSC79471  Linum bienne Kenneth Clark 1980-5-10 635 Humboldt Along access trail to Dead Man's Gulch 122 Comment
  JEPS45743  Linum usitatissimum W. L. Jepson 1936-8-17 17925 Humboldt 2 1/2 mi s of Fields Landing Comment
  UC1103032  Listera caurina Joseph P. Tracy 1926-6-6 7555 Humboldt on raod from Hoopa w to Bair's (near summit); Hoopa Mountain 1066 Comment
  UC1103025  Listera cordata Joseph P. Tracy 1929-4-29 8557 Humboldt Berry's North Coast Ranges, Redwood Creek 274 Comment
  UC146221  Listera cordata Joseph P. Tracy 1908-6 2723 Humboldt nw slope Buck Mountain; Northern Coast Ranges, Van Duzen River 304 Comment
  HSC37702  Listera cordata var. nephrophylla M. Mesler, J. D. Ackerman 1976-4-28 755 Humboldt 1 mi. E of old Hwy. 299 and Korbel turnoff, 1.5-2 mi. from Blue Lake, Simpson Demonstration Forest Comment
  JEPS37747  Lithocarpus densiflorus W. L. Jepson 1902-6 2024 A Humboldt Hupa Valley Comment
  UC1083192  Lithocarpus densiflorus Herbert L. Mason 1928-7-14 4899 Humboldt near Garberville (East Fork of Eel River); East Fork of Eel River Comment
  UC1196367  Lithocarpus densiflorus Joseph P. Tracy 1921-10-2 5964 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1196369  Lithocarpus densiflorus Joseph P. Tracy 1926-10-6 7807 Humboldt between South Fork of Trinity River and Madden Creek (mountain back of Ammon Ranch); Northern Coast Ranges 609 Comment
  UC502989  Lithocarpus densiflorus Joseph P. Tracy 1927-8-28 8361 Humboldt near Boynton Prairie; Northern Coast Ranges 609 Comment
  RSA247208  Lithocarpus densiflorus var. densiflorus Gary D. Wallace 1971-7-28 946 Humboldt Along King Range Co. Rd. ca. 4 mi SE of Shelter Cove. Comment
  RSA697654  Lithocarpus densiflorus var. densiflorus Unspecified 1936-09 s.n. Humboldt Richardson's Grove (State Park). Comment
  HSC48747  Lithophragma heterophyllum Brad Klipfel 1973-6-10 86 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC6863  Lobularia maritima R. T. Forester 1963-3-31 35 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  HSC90681  Lolium perenne Gail Newton 1982-6-10 3590 Humboldt Elk River Wildlife Area, Eureka Comment
  UC1197164  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy 1942-6-23 17229 Humboldt 1 mi. w. Box Camp (on summit of ridge on Hoopa trail, Trinity Summit); Trinity Summit 1219 Comment
  UC162334  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy 1911-7-6 3345 Humboldt along rd. between Three Creeks and mouth of Willow Creek; Northern Coast Ranges 762 Comment
  HSC26274  Lomatium dasycarpum subsp. dasycarpum Thomas W. Nelson 1971-5-31 455 Humboldt Dry bar of the Mad River Comment
  HSC39199  Lomatium dasycarpum subsp. dasycarpum D. E. Anderson, J. P. Smith 1971-7-6 1323 Humboldt 2 mi. E of Pine Ridge Summit Comment
  UC314597  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy 1923-6-27 6380 Humboldt near the South Fork Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 182 Comment
  SEINET8465382 Image available Lomatium dissectum M. A. Baker 1980-6-8 1906 Humboldt Ammon Ridge Comment
  HSC55593  Lomatium dissectum var. dissectum G. L. Clifton, Terry Griswold 1979-7-26 9367 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  POM32369  Lomatium dissectum var. dissectum Lincoln Constance, Alan Beetle, Joseph Tracy 1940-5-17 2617 Humboldt NW slope, Lower slopes of Buck Mtn, near Eureka. 793 Comment
  RSA0000726  Lomatium donnellii W. L. Jepson 1934-5-8 16716 Humboldt Redway, South Fork Eel River. Comment
  UC1565807  Lomatium macrocarpum R. Spellenberg 1990-7-10 Humboldt 7.5 air mi. s.w. Salyer (on U.S.F.S. Rd. 6N08, on Friday Ridge 0.4 mi. n.e. of junction with U.S.F.S. Rd. 1, extreme e. edge county); Friday Ridge 1371 Comment
  HSC47949  Lomatium tracyi Brad Klipfel 1974-5-8 326 Humboldt Horse Mountain Comment
  UC647479  Lomatium tracyi Joseph P. Tracy 1930-7-10 8869 Humboldt Brannan Mt. 1219 Comment
  UC314599  Lomatium utriculatum Joseph P. Tracy 1923-7-4 6525 Humboldt Northern Coast Ranges, Valley of S. Yager Creek 762 Comment
  HSC58297  Lonicera conjugialis Walter Overton, Marvin Butler 1979-8-2 12570 Humboldt Near Bret Hole, close to the town of Hoopa. 1554 Comment
  JEPS12840  Lonicera hispidula var. vacillans Lincoln Constance 1934-5-29 717 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 Comment
  UC168948  Lonicera hispidula var. vacillans Joseph P. Tracy 1904-7-31 2132 Humboldt Eureka Northern Coast Region 0 Comment
  UC169081  Lonicera hispidula var. vacillans Mrs. M. H. Manning 1901-7-27 308 Humboldt near Hupa (Bald Hill) Comment
  SD39856  Lonicera involucrata Edith A. Purer 1932-7-27 4145 Humboldt Near Arcata Comment
  HSC31644  Lonicera involucrata var. ledebourii Glenn McGourty 1974-6-1 78 Humboldt Comment
  HSC31654  Lonicera involucrata var. ledebourii Timothy B. Devine 1974-5-4 326 Humboldt Mad River floodplain 1 mi. from Blue Lake on Hatchery Rd. 305 Comment
  SBBG7364  Lonicera involucrata var. ledebourii H. and M. Dearing 1933-5-17 1854 Humboldt N of Arcata Comment
  SDSU2917  Lonicera involucrata var. ledebourii Harvey 1938-8-13 2278 Humboldt North of Arcata. Comment
  UC162798  Lotus aboriginus Joseph P. Tracy 1906-6-10 2485 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC162851  Lotus aboriginus J. P. Tracy 1906-5-20 2462 Humboldt immediate vicinity Eureka 0 Comment
  JEPS20790  Lotus aboriginus W. L. Jepson 1902-6 1944 Humboldt Berry Ranch Redwood Creek Comment
  CDA4163  Lotus corniculatus Gordon Leppig 1997-6-19 444 Humboldt Big Lagoon County Park, Big Lagoon Bog. Comment
  UC1046517  Lotus denticulatus R. Bacigalupi, L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-13 3405 Humboldt 4 mi w bridge crossing the Van Duzen River (along State Highway 36, Dinsmore); Dinsmore Comment
  HSC44376  Lotus humistratus Thomas W. Nelson, Jane P. Nelson 1977-6-19 3512 Humboldt SW of Alder Springs along Rd. 2S08. 1524 Comment
  HSC49979  Lotus humistratus M. A. Baker 1979-6-1 772 Humboldt N bank of road to Snow Mt. 610 Comment
  JEPS79926  Lotus oblongifolius var. oblongifolius Joseph P. Tracy Jul 16 1930-Jul 19 1930 8997 Humboldt McKay Cmap Northern Coast Ranges, South Fork Mountian 1676 Comment
  JEPS55790  Lotus purshianus var. purshianus Joseph P. Tracy 1923-6-17 6271 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UC168985  Lotus purshianus var. purshianus Joseph P. Tracy 1912-7-24 3807 Humboldt Eureka Northern Coast Region 0 Comment
  UC179939  Lotus purshianus var. purshianus Joseph P. Tracy 1914-7-12 4583 Humboldt Eureka Northern Coast Region 0 Comment
  SEINET3560048 Image available Lotus stipularis var. subglaber Joseph P. Tracy 1927-8-22 8354 Humboldt Bald Mt. 914 Comment
  RSA246782  Lotus unifoliolatus Robert F. Thorne, Percy C. Everett, K. Thorne 1965-8-7 35225 a Humboldt Samoa Peninsula. 3 Comment
  UC1223281  Lupinus adsurgens Joseph P. Tracy 1946-6-15 17567 Humboldt at the Ski Lodge, Horse Mountain (Horse Mountain); Horse Mountain 1219 Comment
  UC170029  Lupinus affinis Joseph P. Tracy 1912-6-9 3678 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  HSC32313  Lupinus albifrons var. flumineus D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5659 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  CHSC32840  Lupinus arboreus Lora L. Anderson 1981-4-26 17 Humboldt Ca. 0.5 mi e of ocean (Moonstone Beach) 0.5 mi w of Hwy 101, 11.5 mi n of Arcata. 0 Comment
  HSC14775  Lupinus arboreus J. W. Johnson 1961-9-3 1078 Humboldt Arcata, Christenson Farm, Samoa Peninsula. Comment
  HSC38340  Lupinus arboreus Peter Sorensen 1976-7-14 Humboldt N Spit Comment
  HSC31789  Lupinus bicolor Donald Spalinger 1974-4-25 25 Humboldt Forest across from 1756 Ridgewood Dr. 122 Comment
  RSA256586  Lupinus bicolor Lon Hall 1975-5-24 382 Humboldt Samoa Dunes; Dunes from off Samoa Blvd. across from the boat landing; coastal strand. Comment
  JEPS109559  Lupinus elmeri Dean Wm. Taylor, Tom Engstrom 2002-7-19 18250 Humboldt South Fork Mountain, Blake Mountain, opening along Forest Road 1 ca. 0.5 mi N of the highest point on the ridge 1737 Comment
  HSC35605  Lupinus latifolius subsp. viridifolius Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2016 Humboldt French Camp, Bald Hills. Comment
  UC15962  Lupinus lepidus var. sellulus Harley P. Chandler Jun 1901 1498 Humboldt Klamath River Comment
  BLMAR212  Lupinus microcarpus var. densiflorus Jennifer Anthony-Wheeler 1996-7-9 212 Humboldt Pilot ridge., open or distrubed areas 1280 Comment
  SEINET6932723 Image available Lupinus polycarpus Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt About 4 miles southeast of Kneeland. Comment
  UC865174  Lupinus polyphyllus var. polyphyllus Eliz. Parsons Hawver June 1915 Humboldt Carlotta Comment
  UC176608  Lupinus polyphyllus var. polyphyllus Joseph P. Tracy 1913-6-25 4335 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in the valley of the Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC100523  Lupinus rivularis Carl C. Marshall May 1886 211 Humboldt Everywhere. Comment
  UC204631  Lupinus rivularis Joseph P. Tracy 1918-9-8 5099 Humboldt Eureka; Northern Coast Ranges, at Eureka 0 Comment
  HSC36275  Lupinus rivularis John Rehling 1974-7-12 12 Humboldt Near the Bald Hills Rd., 3.5 mi. E of Hwy. 101 Comment
  JEPS85690  Lupinus rivularis W. L. Jepson 1936-8-17 17929 Humboldt 3 mi s Fields Landing (s of Stills Ranch); s of Fields Landing, s of Stills Ranch Comment
  SEINET10488860  Lupinus rivularis Smith 1948-5-10 Smith 48246 Humboldt Hwy. 101--Red crest, few redwoods, 1 mi s. Comment
  RSA275290  Lupinus sellulus subsp. ursinus Thomas W. Nelson, Jane Nelson, A. P. Nelson 1977-6-19 3511 Humboldt Southwest of Alder Springs along road 2S08. 1463 Comment
  UC1152123  Luzula comosa Joseph P. Tracy 1930-7-16 8903 Humboldt near McKay camp; South Fork Mountain 1676 Comment
  HSC45019  Luzula comosa R. Sutherland 1978-4-23 12 .23478 Humboldt Telegraph Ridge just NW of Green Ridge 695 Comment
  HSC45020  Luzula comosa Sutherland 1978-3-30 1 .30378 Humboldt McKee Flat 293 Comment
  UC1152128  Luzula comosa Joseph P. Tracy 1934-6-27 11040 Humboldt in open forest Horse Mountain Horse Mountain 1432 Comment
  UCD142118  Luzula comosa Joseph P. Tracy 1930-7-17 8972 Humboldt South Fork Mountain; opening in fir forest nera McKay Camp. 1676 Comment
  UC1103682  Luzula comosa var. laxa Joseph P. Tracy 1924-4-27 6649 Humboldt Northern Coast Ranges: Near Berry's on Redwood Creek 365 Comment
  CHSC60627  Luzula macrantha L. P. Janeway 1984-6-17 846 Humboldt On ridge east of Horse Mountain. 1432 Comment
  UCR265767  Luzula macrantha Peter F. Zika 2011-7-3 25500 Humboldt Outer North Coast Ranges, Titlow Hill Road, near junction with Forest Road 6N36, 1 air mi south of Horse Mountain 1410 Comment
  HSC83992  Luzula parviflora L. P. Janeway 1983-5-1 253 Humboldt Along dirt rd. E of HSU water tank 61 Comment
  UC1103675  Luzula subsessilis Joseph P. Tracy 1900-5-28 819 Humboldt Northern Coast Region, at Eureka 0 Comment
  UC524369  Lycopodiella inundata Ira L. Wiggins 1932-7-19 5893 Humboldt low swamp at s end Big Lagoon Comment
  HSC14221  Lycopus uniflorus H. E. Parks, J. P. Tracy 1924-8-3 6765 Humboldt Big Lagoon 6 Comment
  UCSB26679  Lysichiton americanus Neil Havlik 1968-8-21 63 Humboldt collected ath the S-end of the Big Lagoon N of Trinidad Big Lagoon and Trinidad 1 Comment
  RSA0015871  Lythrum hyssopifolia I. L. Wiggins 1932-7-19 5889 Humboldt Near Clam Beach, about 8 mi. N of Arcata. Comment
  SEINET10473462  Madia Mary Susan Taylor 1990-8-22 Taylor 6074 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  UC1223210  Madia elegans Joseph P. Tracy 1947-7-9 17827 Humboldt Horse Mountain 1066 Comment
  CAS-BOT-BC342801  Madia elegans Ella Dales Cantelow 1938-10-26 2182 Humboldt Near Red Cap Creek, s.w. of Orleans Comment
  HSC100440  Madia elegans Carl C. Marshall Jun 1885 97 Humboldt Hills. Comment
  UC129392  Madia elegans Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5681 Humboldt Hoops Mt. Hoopa Mt. Comment
  HSC49904  Madia exigua Maralyn O'Meara 1973-6-12 203 Humboldt S-facing slope Comment
  HSC71169  Madia gracilis Thomas W. Nelson 1977-5-30 3415 Humboldt Base of Eight Mile Ridge upstream from Anderson's Ford. 701 Comment
  UC1199396  Madia gracilis Joseph P. Tracy 1912-6-9 3653 Humboldt Alton Northern Coast Ranges 30 Comment
  UC1223208  Madia gracilis Joseph P. Tracy 1950-7-6 19026 Humboldt 3 mi s of Burr Valley; Sproston's Place 1066 Comment
  UC176727  Madia gracilis Joseph P. Tracy 1909-8-1 3069 Humboldt Kneeland Prairie 762 Comment
  HSC49984  Madia gracilis M. A. Baker 1979-6-7 786 Humboldt N bank of road to Snow Mtn. 610 Comment
  UC495632  Madia gracilis Joseph P. Tracy 1932-7-13 10494 Humboldt at Corral Praire; Trinity Summit, Klammath Mountains 1524 Comment
  CAS-BOT-BC343595  Madia sativa Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC15596  Maianthemum dilatatum W. R. Brigham 1962-5-19 6 Humboldt S of Big Lagoon. Comment
  HSC38936  Maianthemum dilatatum Linda M. Barker 1976-5-13 1484 Humboldt 3 mi. W of Arcata Comment
  CAS-BOT-BC508503  Maianthemum dilatatum Wayne Roderick 1967-7-22 s.n. Humboldt Trinidad 30 Comment
  CAS-BOT-BC508510  Maianthemum dilatatum O. Con Mary 1921-9-26 s.n. Humboldt Eureka Comment
  HSC59443  Maianthemum dilatatum Kenneth Clark 1979-4-21 133 Humboldt By junction of Little River Rd. and Central Ave., McKinleyville Comment
  SEINET12050376  Maianthemum dilatatum F. H. Utech 1988-1 88 -272 Humboldt 14 mi W of Bridgeville enroute to Carlotta on CA 36, Van Duzen County Park, Pamplin Grove 50 Comment
  HSC15643  Maianthemum racemosum subsp. amplexicaule Francis Winter 1960-4-23 Humboldt 1 mi. E of Korbel 30 Comment
  HSC41942  Maianthemum racemosum subsp. amplexicaule Richard G. Runyon 1977-4-23 9 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  SEINET12047102  Maianthemum racemosum subsp. amplexicaule F. H. Utech 1972-1 72 -013 Humboldt Humboldt Redwoods State Park, Bull Creek Flats area 213 Comment
  HSC15890  Maianthemum stellatum T. M. Mingo May 1965 Humboldt E of College Cove, N of Trinidad Comment
  HSC45240  Maianthemum stellatum Thomas W. Nelson, Jane P. Nelson 1977-6-19 3509 Humboldt Alder Springs 1524 Comment
  CAS-BOT-BC140132  Malus fusca L. R. Abrams; G. T. Benson 1924-5-17 10730 Humboldt Trinidad Head Comment
Read comments
Jun 17 2020
  UC183619  Malus fusca Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3593 Humboldt near Hydesville; Northern Coast Region 30 Comment
  UCD113220  Malus fusca H. E. Parks 1933-4-1 4352 Humboldt Spruce Cove, Trinidad. Comment
  JEPS42489  Marah oregana W. L. Jepson 1902-6-24 1931 Humboldt Blue Lake Comment
  UC249510  Marah oregana Joseph P. Tracy 1922-4-30 6035 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC562356  Marah oregana Joseph P. Tracy 1933-5-20 12227 Humboldt s of point Cape Mendocino 3 Comment
  HSC39795  Matricaria discoidea Peter Sorensen 1976-8-8 Humboldt King Salmon Comment
  CAS-BOT-BC271171  Melica aristata Joseph P. Tracy 1935-7-25 14236 Humboldt McKay Prairie, Trinity Summit 1584 Comment
  HSC10337  Melica californica J. A. Waller 1965-5-2 31 Humboldt Along Hwy. 96 near Willow Creek. Comment
  RSA152364  Melica californica Joseph P. Tracy 1938-6-9 15886 Humboldt Mail Ridge, northwest of Harris 2 miles. 915 Comment
  HSC71167  Melica harfordii Thomas W. Nelson 1977-5-30 3413 Humboldt Base of Eight Mile Ridge upstream from Anderson's Ford. 701 Comment
  UCD87523  Melica harfordii P. B. Kennedy 1916-6-1 s.n. Humboldt Eureka. Comment
  CAS-BOT-BC281004  Melica spectabilis Joseph P. Tracy 1932-7-12 10445 Humboldt Klamath Mts,Trinity Summit. At Corral Prairie 1524 Comment
  UC552689  Melica stricta Joseph P. Tracy 1935-7-28 14333 Humboldt Head of Brett Hole; Trinity Summit 1828 Comment
  HSC10366  Melica subulata E. W. Styskel 1963-5-16 30 Humboldt 3.0 mi. SE of Korbel on Snow Camp Rd. 290 Comment
  HSC74687  Melica subulata Gail Newton 1981-8-7 2441 Humboldt Near Bug Creek. 1042 Comment
  UC1103161  Melica subulata H. E. Parks and Joseph P. Tracy 1934-6-27 11075 Humboldt Grouse Mt. 1432 Comment
  UC187219  Melica subulata Joseph P. Tracy 1911-6-4 3227 Humboldt along Litte River, 5 mi from coast Little River, North Coast 121 Comment
  UC77000  Melica subulata Joseph Burtt Davy 1899-6-10 5405 a Humboldt Hubbard's Station Comment
  UCD88599  Melica subulata A. A. Beetle; G. L. Stebbins Jr. with J. P. Tracy 1942-6-2 3475 Humboldt 4 miles north of Bridgeville. Comment
  BLMAR755  Melica subulata Jennifer Wheeler 2004-4-30 755 Humboldt King Range, Along Telegraph Ridge 670 Comment
  UC1197423  Melilotus albus Joseph P. Tracy 1920-8-15 5359 Humboldt Bluff Creek Northern Coast Ranges, Klamath River 152 Comment
  HSC15015  Melilotus indicus W. F. Nickel 1965-5-16 Humboldt N Arcata in front of the College Cleaners Comment
  UC577385  Melissa officinalis Joseph P. Tracy 1925-8-16 7232 Humboldt near the South Fork Trinity River Valley (around farm); Northern Coast Ranges, Trinity River Valley 182 Comment
  JEPS63455  Mentha pulegium Joseph P. Tracy 1923-6-20 6336 Humboldt Briceland 304 Comment
  SEINET3228190 Image available Mentha pulegium Joseph P. Tracy 1930-9-1 9175 Humboldt Miranda, along South Fork of Eel River 120 Comment
  HSC37417  Menziesia ferruginea Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 516 Humboldt Along Lost Man Creek. 38 Comment
  JEPS80899  Menziesia ferruginea B. A. Bohm, K. W. Nichols 1981-5-11 1571 B Humboldt Prairie Creek area, Mile 125.00, US Hwy 101 Prairie Creek area; , Mile 125.00, US Hwy 101 Comment
  HSC32925  Micropus californicus var. californicus Thomas W. Nelson, James Nelson 1973-5-28 968 Humboldt McKeown Ranch N of Dinsmore Comment
  UC1239517  Microseris bigelovii Joseph P. Tracy 1922-5-28 6057 Humboldt Little River Beach Northern Coast Ranges 6 Comment
  UC1223203  Microseris bigelovii Joseph P. Tracy 1938-5-31 18014 Humboldt near Alder Point (along road to Harris, 1 mi sw) Comment
  UC164793  Microseris bigelovii Joseph P. Tracy 1911-5-30 3203 Humboldt Bucksport Northern Coast Region, Humboldt Bay Region 0 Comment
  CHSC93621  Microseris borealis K. L. Chambers 1957-8-31 1225 Humboldt Lake Prairie, on road from Bald Mt. to Snow Camp, ca. 9 mi. S of Ranger Station. In bog, SE end of the lake. Comment
  UC275469  Microseris douglasii subsp. douglasii Joseph P. Tracy 1925-5-30 7022 Humboldt McClellan Mountain Northern Coast Ranges 822 Comment
  CAS-BOT-BC322684  Microseris laciniata Lincoln Constance 1934-5-24 624 Humboldt S. slope of Lower Look Prairie, South Fork Eel River 182 Comment
  CAS-BOT-BC349239  Microseris nutans E. B. Babcock 1932-6-25 405 Humboldt Humboldt-Trinity Counties, South Fork Mt. north slope 1828 Comment
  HSC75437  Microsteris gracilis J. O. Sawyer 1980-7-18 3593 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  SEINET200380  Microsteris gracilis J. P. Tracy 1930-6-21 8789 Humboldt Larrabee Valley 701 Comment
  HSC17124  Microsteris gracilis D. E. Anderson 1963-5-19 2460 Humboldt Barry Rd., 1/2 mi. W of Kneeland school Comment
  SEINET10496812  Microsteris gracilis Lawrence P. Janeway 1983-4-16 Janeway 229 Humboldt Lord-ellis summit quad. T6n,r4e,sec.19. W facing slope near the old hwy 299 on W side of berry summit. Open hill grassland 823 Comment
  HSC20645  Mimulus aurantiacus var. aurantiacus Paul Shields 1955-6-12 Humboldt 6 mi. W of Myers Flat Comment
  HSC20685  Mimulus aurantiacus var. aurantiacus Steve Dorei 1970-10-31 132 Humboldt Scotia bluff area, N side of railroad tracks. Comment
  HSC35820  Mimulus aurantiacus var. aurantiacus Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-20 1914 Humboldt Beside Hwy. 36, 1 mi. W of Grizzley Creek Comment
  HSC38622  Mimulus aurantiacus var. aurantiacus D. E. Anderson, J. P. Smith 1971-6-21 1111 Humboldt 5.2 mi. E of the bridge over Eel River at Alderpoint, near Humboldt-Trinity county line Comment
  JEPS10240  Mimulus aurantiacus var. aurantiacus Joseph P. Tracy 1934-6-19 13235 Humboldt Carlotta 60 Comment
  JEPS10550  Mimulus breweri W. L. Jepson 1902-7-23 2108 Humboldt Trinity Summit 2133 Comment
  SEINET3365865 Image available Mimulus breweri Joseph P. Tracy 1932-7-10 10375 .5 Humboldt Trinity Summit Corral Prairie in wet meadow 1585 Comment
  UC147879  Mimulus dentatus J. P. Tracy 1900-5-30 833 Humboldt immediate vicinity Eureka 0 Comment
  HSC20710  Mimulus dentatus R. C. Wunner 1962-5-21 Humboldt Redwood Creek, 50 yds. from trail to HSC. Dorm on road to reservoir Comment
  UC198662  Mimulus douglasii Joseph P. Tracy 1915-5-20 4639 Humboldt Eureka Northern Coast Ranges Comment
  UC147884  Mimulus grandis J. P. Tracy 1903-6-14 1923 Humboldt immediate vicinity Eureka 0 Comment
  UCR45415  Mimulus guttatus Kenneth Clark 1980-5-10 659 Humboldt Western Beach, Point Delgada 15 Comment
  HSC20729  Mimulus guttatus D. E. Anderson 1961-8-25 1741 Humboldt 1.5 mi. S of Trinidad Comment
  UC41883  Mimulus kelloggii Harley P. Chandler June 1901 1480 Humboldt Klamath River North Coast Ranges 426 Comment
  RSA54140  Mimulus layneae H. M. Pollard 1946-9-2 s.n. Humboldt Orleans Mt. Trail. 1524 Comment
  HSC100673  Mimulus moschatus Carl C. Marshall Sep 1886 248 Humboldt Ravines, etc. Comment
  RSA15580  Mimulus moschatus Carl B. Wolf 1927-8-27 1160 Humboldt On the Klamath River, 14 mi. above Weitchpec. 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
  HSC25985  Mimulus pilosus Thomas W. Nelson 1970-9-3 226 Humboldt Mad River. Comment
  UC1103329  Mimulus primuloides Joseph P. Tracy 1935-7-26 14259 Humboldt Water Dog Lakes Trinity Summit 1828 Comment
  HSC48677  Mimulus tilingii Brad Klipfel 1973-7-31 252 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1198338  Minuartia douglasii Joseph P. Tracy 1947-7-5 17793 Humboldt Mud Springs Trinity Summit 1371 Comment
  UC161040  Minuartia douglasii Ethel Tracy May 1905 Humboldt Harris Northern Coast Ranges 762 Comment
  HSC104427  Minuartia douglasii Greg O'Connell 2013-6-27 Humboldt Summit of Mt. Andy 1159 Comment
  UC303176  Mitella ovalis Joseph P. Tracy 1923-4-8 6176 Humboldt Carlotta Northern Coast Ranges 60 Comment
  HSC99403  Mitella trifida var. trifida K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 52 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  BLMAR627  Moehringia macrophylla Jennifer Wheeler 2011-6-15 627 Humboldt Lacks Creek, Doug fir understory of Stormy Saddle 1158 Comment
  UC13619  Moehringia macrophylla Chesnut and Drew 1888-8-9 Humboldt head of Redwood Creek Comment
  UCD98355  Moehringia macrophylla D. C. Hagar 1957-5-16 94 Humboldt Happy Camp Mountain, 7.5 miles southeast of Willow Creek and 5.25 milse northeast of Salyer. 1219 Comment
  JEPS63389  Monardella odoratissima subsp. pallida Joseph P. Tracy Jul 16 1930-Jul 19 1930 8911 Humboldt South Fork Mountain near Camp McKay. Northern Coast Ranges 1676 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
  RSA33443  Monardella odoratissima subsp. pallida Carl B. Wolf 1937-8-13 9269 Humboldt North Coast Range, 12 miles E of Hoopa Valley on new road towards Trinity Summit. 1677 Comment
  HSC100506  Monardella villosa Carl C. Marshall Jun 1886 276 Humboldt Hoopa. Comment
  LA62385  Monardella villosa Carl Epling; William Robison 1935-7-25 sn Humboldt Dyerville Comment
  JEPS62398  Monardella villosa subsp. globosa Lincoln Constance 1934-6-3 798 Humboldt along n side of Redwood Hwy. at Dyerville South Fork Eel River, Bull Creek Region Comment
  RSA0022787  Monardella villosa subsp. subserrata Carl B. Wolf 1934-7-3 5923 Humboldt Weitchpec (junction of Klamath and Trinity Rivers). 200 yards west of school. 152 Comment
  UC1239681  Monardella villosa subsp. villosa Joseph P. Tracy 1936-6-27 15005 Humboldt Miranda South Fork Eel River 121 Comment
  UC1223242  Montia chamissoi Joseph P. Tracy 1951-6-14 19415 Humboldt Snow Camp Meadows Comment
  UC161050  Montia fontana Joseph P. Tracy 1909-5-2 2955 Humboldt Northern Coast Region, at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  RSA249389  Montia fontana D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5587 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  RSA183637  Montia parvifolia D. E. Anderson 1965-5-22 3726 Humboldt 9.4 miles S of Bridgeville, Comment
  UCD101764  Montia parvifolia H. P. Olmo 1930-6-10 s.n. Humboldt Wooley Creek. Comment
  HSC16100  Morella californica P. Markle 1962-5-24 63 Humboldt Edge of 18th St. in Arcata 30 Comment
  JEPS70788  Myosotis discolor Joseph P. Tracy 1936-5-17 14809 Humboldt Lawrence Creek at crossing of Kneeland Rd.; Lawrence Creek 457 Comment
  HSC77907  Myosurus minimus L. P. Janeway, Paul Wilson 1984-5-25 822 Humboldt N Spit of Humboldt Bay, BLM lands near the Coast Guard Station 5 Comment
  HSC77866  Myosurus minimus Rudy Becking 1982-11-13 Humboldt N Spit of Samoa Peninsula, near USCG Station Comment
  CAS-BOT-BC101671  Myrica californica Joseph P. Tracy 1931-4-12 9332 Humboldt Dows Prairie 60 Comment
  POM280267  Myrica californica Lyman Benson 1930-7-18 2191 Humboldt Shively, seaward north coast Mt. range, Eel River. 46 Comment
  UC562532  Myriophyllum aquaticum Joseph P. Tracy 1933-7-20 12810 Humboldt Along Mad River, near Blue Lake. 15 Comment
  HSC41673  Myriophyllum aquaticum Charles O'Neil Humboldt McKinleyville, ponds W of Hwy. 101 Comment
  HSC13475  Myriophyllum sibiricum R. L. Jarvis 1962-4-29 24 Humboldt Clam Beach Lagoons, .5 mi. S of Little River on Hwy. 101 0 Comment
  CAS-BOT-BC60348  Nasturtium officinale M. S. Jussel 1931-5-2 s.n. Humboldt 25 miles north of Garberville. Comment
  HSC6871  Nasturtium officinale D. E. Anderson 1961-9-13 1815 Humboldt Trinidad Beach Comment
  HSC96212  Navarretia capillaris April A. Allard, Gregory O'Connell 2005-6-15 12 Humboldt NE of Grouse Mtn. 1447 Comment
  HSC55328  Navarretia divaricata Griswold, Butler 1979-7-12 7167 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC1198603  Navarretia intertexta Joseph P. Tracy 1906-7-4 2525 Humboldt near Carlotta (near Hydesville); Northern Coast Region 60 Comment
  HSC81494  Navarretia mellita Thomas W. Nelson, Jane P. Nelson 1980-8-12 6235 Humboldt Logging roads S of Lundbar Hills 61 Comment
  UCD48697  Navarretia squarrosa H. E. Parks; S. T. Parks 1947-9-1 24442 Humboldt Trinidad, Spruce Cove, Humboldt County. 76 Comment
  UC1198519  Navarretia tagetina Joseph P. Tracy 1934-7-9 13344 Humboldt Dobbyn Creek Northern Coast Ranges 152 Comment
  UC24188  Nemophila heterophylla Mary H. Manning 1900-1 Humboldt Hupa Comment
  CHSC97984  Nemophila menziesii var. atomaria Andrew Byers; Stuart E Richardson III 2005-6-10 9 Humboldt 7.4 mi south of Hwy 299 on NF1. Coldspring Camp. 1357 Comment
  HSC97503  Nemophila menziesii var. atomaria C. Witte 2007-5-8 1 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1410 Comment
  SBBG6129  Nemophila menziesii var. atomaria H. and M. Dearing 1939-4-24 3424 Humboldt near Dyerville Comment
  HSC13585  Nemophila menziesii var. atomaria T. M. Mingo May 1965 Humboldt W of Fairhaven Dr. intersection with Hwy. 101 Comment
  UC562586  Nemophila menziesii var. atomaria Joseph P. Tracy 1927-4-17 7903 Humboldt 274 Comment
  UC1239746  Nemophila parviflora Joseph P. Tracy 1906-4-15 2409 Humboldt near Anderson's Ranch (Bald Mt., region about Humboldt Bay, Northern Coast Region); Northern Coast Region, Humboldt Bay region, Bald Mt. 0 Comment
  UC146184  Nemophila pedunculata Joseph P. Tracy 1906-5-6 2434 Humboldt near Hydesville; Northern Coast Region, near Hydesville 60 Comment
  UC176993  Nemophila pedunculata Joseph P. Tracy 1913-5-4 4065 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC198657  Nemophila pedunculata Joseph P. Tracy 1917-4-29 4779 Humboldt Eureka Northern Coast Ranges, at Eureka 0 Comment
  CDA20507  Noccaea fendleri subsp. californica P. Haggard 2004-8-3 PDR 1285924 Humboldt Northwestern California; Along Friday Ridge Rd in Blue Lake. 0 Comment
  UCSB1031  Notholithocarpus densiflorus Muller, Cornelius 1954-6-21 Humboldt 8 mi. ESE of Mad River on road to Forest Glen Comment
  CAS-BOT-BC400077  Nuphar polysepala Carl B. Wolf 1937-9-9 9309 Humboldt 1 mi. So. of Capetown on road to Cape Mendocino 91 Comment
  HSC48251  Nuphar polysepala James Hansen 1975-5-28 Humboldt Essex pond on Essex Ranch, .5 mi. N of Hwy. 299 near Blue Lake Comment
  HSC69696  Nuphar polysepala R. Kalal 1980-6-1 10 Humboldt Essex Pond 15 Comment
  HSC20658  Nuttallanthus texanus R. T. Forester 1963-4-30 18 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  HSC59715  Nuttallanthus texanus Clark L. Miller 1979-5-9 1110 Humboldt Samoa Dunes off Samoa Blvd. Comment
  HSC20655  Nuttallanthus texanus Francis Winter 1960-4-19 Humboldt Samoa Peninsula, Fairhaven Airport entrance, 12 mi. W of Arcata Comment
  UC154281  Oemleria cerasiformis Mrs. Harriet Tracy 1909-3-5 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC183620  Oemleria cerasiformis Joseph P. Tracy 1912-3-31 3565 Humboldt Blue Lake; Northern Coast Region 30 Comment
  UC916667  Oenanthe pimpinelloides Joseph P. Tracy 1950-6-23 18874 Humboldt 3 mi n Blocksburg; Larrabee Creek 457 Comment
  HSC38335  Oenanthe sarmentosa Peter Sorensen 1976-8-11 Humboldt King Salmon Comment
  UCD127756  Oenanthe sarmentosa Collector Unknown 1932-7-1 s.n. Humboldt California Seed Lab. Comment
  CAS-BOT-BC349969  Oreostemma alpigenum var. andersonii Doris K. Kildale 1925-8-16 1195 Humboldt Trinity Summit 1828 Comment
  JEPS11667  Orobanche californica subsp. californica Joseph P. Tracy 1918-7-1 4970 Humboldt Cape Mendocino, southwestern slopes, fronting the ocean, three miles south of Point of the Cape. Comment
  SEINET186016  Orobanche californica subsp. californica Joseph P. Tracy, H. E. Parks 1924-8-3 6761 Humboldt Big Lagoon 6 Comment
  UC35308  Orobanche uniflora subsp. occidentalis W. C. Blasdale 1896-6-8 Humboldt Graham's. Comment
  HSC100678  Orthocarpus Carl C. Marshall Jun 1886 110 Humboldt Near Mad River Beach. Comment
  RSA183530  Orthocarpus erianthus R. J. Vernimen 1963-5-11 54 Humboldt 0.5 mile off the Samoa road behind the Georgia-Pacific dump, 7.5 miles SW of Arcata. Comment
  HSC102539  Orthocarpus imbricatus M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1525 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC99397  Osmorhiza berteroi K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 46 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC53833  Osmorhiza occidentalis Terry Griswold, Butler 1979-7-10 6281 Humboldt Near Board Camp Mountain 1372 Comment
  HSC70969  Oxalis oregana R. York 1980-5-17 545 Humboldt Near Le Perron Creek. 415 Comment
  UC1212178  Oxalis oregana H. E. and S. T. Parks 1945-4-1 Humboldt Spruce Cove Trinidad 0 Comment
  UC14238  Oxalis oregana Chesnut and Drew 1888-7-8 Humboldt Arcata Comment
  UC17222  Oxalis oregana Harley P. Chandler May, 1901 1160 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  POM353445  Oxalis oregana J. P. Smith 1973-5-26 6852 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  UC1103425  Oxalis oregana J. P. Tracy 1906-4-15 2411 Humboldt near Kobel; Bald Mt. 609 Comment
  UC170010  Oxalis oregana Harley P. Chandler 1901-6-30 1188 Humboldt Eureka North Coast Ranges, Humboldt Bay 30 Comment
  POM89798  Panicum acuminatum var. acuminatum Joseph P. Tracy 1920-8-15 5356 Humboldt Klamath River at Bluff Creek 152 Comment
  CAS-BOT-BC253709  Panicum capillare Henry M. Pollard 1946-8-22 s.n. Humboldt Ullathorne Riffle, Klamath River, Orleans region Comment
  SEINET10609310  Panicum capillare var. brevifolium A. Arthur Heller 1924-7-20 Heller 13864 Humboldt Occasional in sand along the El River at Phillipsville, in the redwood belt. Comment
  CDA2147  Panicum miliaceum T. R. Haig 1975-8-27 Humboldt Korbel. 0 Comment
  HSC95379  Parentucellia viscosa Andrea Pickart 2002-8-7 195 Humboldt Arcata Bottoms, along Lanphere Rd. 20 Comment
  RSA516351  Parentucellia viscosa Barbara Ertter, Tom Delendick 1987-5-16 6915 Humboldt Hwy 299, ca 8 mi E of Arcata, 9.5 mi W of Lord Ellis summit. Comment
  UCSB30624  Parentucellia viscosa Edwards, David 1974-8-14 Humboldt 3/4 mi. in on dirt road from jct. with Fickle Hill Rd. ca. 1/4 mi. E. of jct. of Park Ave. and Fickle Hill Rd.; where dirt road forks several ways. ca. 50 ft. S. of power line twr. Arcata 121 Comment
  UC902125  Paxistima myrsinites Joseph P. Tracy 1942-6-23 17245 Humboldt 2 mi. e. Box Camp; Trinity Summit 1524 Comment
  HSC20928  Pedicularis densiflora R. A. Rasp 1964-4-25 33 Humboldt 2.5 mi. E of Willow Creek off of Hwy. 299 Comment
  RSA46796  Pedicularis densiflora Doris K. Kildale 1927-4-17 3096 Humboldt Briceland Bridge near Garberville. Comment
  CAS-BOT-BC69339  Pellaea brachyptera Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  UC71289  Pellaea brachyptera Chesnut and Drew 1888-7-21 Humboldt Pilot Ridge Comment
  JEPS7206  Penstemon anguineus P. E. Goddard 1906-6 679 Humboldt Lasseck Pk Comment
  HSC98766  Penstemon anguineus Cara Witte 2008-6-27 762 Humboldt Along National Forest 1 near Kinsey Ridge. 1/2 mile north of cattle guard. 1397 Comment
  HSC54203  Penstemon deustus Terry Griswold, Marvin Butler 1979-7-12 7243 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  RSA33403  Penstemon heterophyllus subsp. purdyi Doris K. Kildale 1925-5-30 860 Humboldt Bucilana Bridge. 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
  UC1222785  Penstemon laetus var. sagittatus Joseph P. Tracy 1951-6-26 19588 Humboldt n side Board Camp Mountain extreme head of Redwood Creek, n side Board Camp Mountain (at extreme head of Redwood Creek) 1541 Comment
  UC577358  Penstemon newberryi var. berryi Joseph P. Tracy 1932-7-12 10472 Humboldt head of Brett Hole Trinity Summit 1828 Comment
  HSC102117  Penstemon procerus var. brachyanthus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1021 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  NY638944  Penstemon procerus var. brachyanthus J. P. Tracy 1932-7-12 10480 Humboldt Trinity Summit. Head of Brett Hole 1828.8 Comment
  HSC21104  Penstemon rattanii J. P. Tracy 1906-6-10 2480 Humboldt Kneeland Prairie 762 Comment
  UCSB51227  Pentagramma triangularis subsp. triangularis Almanza, Ed 1976-7-16 Humboldt 6.2 miles west of Berry Summit, Highway 299 762 Comment
  UC1197125  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1914-10-11 4636 Humboldt Ricks Prairie Northern Coast Region, Eureka 0 Comment
  HSC95377  Persicaria lapathifolia Andrea Pickart 2002-8-7 193 Humboldt Arcata Marsh along I St. 20 Comment
  HSC6052  Petasites frigidus var. palmatus Eugene Andreuccetti 1964-5-2 35 Humboldt 5 mi. W of Willow Creek on Hwy. 299 Comment
  HSC91906  Petasites frigidus var. palmatus E. Mackey 1986-7-10 Humboldt Patrick's Point State Park; near restroom on the road to Wedding Rock Comment
  SEINET12118794  Peucedanum tomentosum H. P. Chandler 1901-1 1445 Humboldt Klamath River, North Coast Ranges 274 Comment
  HSC42200  Phacelia bolanderi Ed Cope 1977-4-23 22 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 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
  JEPS1438  Phacelia bolanderi W. L. Jepson 1932-8-9 16536 Humboldt Bull Creek 106 Comment
  OBI77760  Phacelia bolanderi Rimo Bacigalupi, G. T. Robbins 1954-6-28 4657 Humboldt Trinity River, 2 mi N of Hoopa, Hoopa Valley Indian reservation 91 Comment
  POM287458  Phacelia bolanderi Lyman Benson 1929-7-16 1833 Humboldt Weott Ranger Station. Comment
  RSA75339  Phacelia bolanderi F. W. Peirson 1928-7-4 7959 Humboldt On banks of Eel River at Robinson s Grove. Comment
  SD90173  Phacelia bolanderi Benjamin C. Stone 1952-6-25 124 Humboldt Hwy 101, 15 mi south of Klamath 14 Comment
  UC1586868  Phacelia bolanderi Juha Pykala and D. H. Norris 1987-6-10 1510 Humboldt on a road to Onion Lake about 18 mi from Highway 96; Six Rivers National Forest Comment
  HSC99465  Phacelia heterophylla subsp. virgata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 119 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UCD120520  Phacelia heterophylla subsp. virgata Alice Eastwood; John Thomas Howell 1937-6-23 4757 Humboldt Dinsmore's. Comment
  HSC57422  Phacelia mutabilis G. L. Clifton, Griswold 1979-7-26 10193 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  RSA428107  Phacelia mutabilis Brad W. Klipfel 1973-7-1 143 Humboldt Along ridge trail south east of North Trinity Mountain 1829 Comment
  BLMAR159  Phacelia nemoralis subsp. nemoralis Donald Hazlett 1994-6-7 159 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UC1239735  Phacelia procera Joseph P. Tracy Jul 16 1930-Jul 19 1930 9084 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC1103763  Phalaris arundinacea Joseph P. Tracy 1934-10-21 13695 Humboldt along coast in front of south end Stone Lagoon (Dry Lagoon); in front of South End Stone Lagoon, Dry Lagoon 3 Comment
  UC1103768  Phalaris californica Joseph P. Tracy 1927-8-28 8359 Humboldt near Boynton Prairie; North Coast Ranges, near Boynton Prairie 609 Comment
  CAS-BOT-BC76560  Philadelphus lewisii Roxana S. Ferris 1955-7-11 12975 Humboldt Summit of U.S. Highway 299 betw. Willow Creek and Blue Lake. Comment
  CAS-BOT-BC76573  Philadelphus lewisii Alice Eastwood 1921-7-21 10655 Humboldt Carlotta Comment
  JEPS49603  Philadelphus lewisii Joseph P. Tracy 1926-6-27 7696 Humboldt Horse Mountain Northern Coast Ranges 1066 Comment
  RSA12538  Phleum alpinum C. B. Wolf 1934-7-2 5900 Humboldt Snow camp. (Mts. east of Korbel) 1372 Comment
  HSC99494  Phleum pratense K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 154 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  HSC65479  Phlox adsurgens M. A. Baker 1980-6-7 1806 Humboldt Near Brush Mtn. 1128 Comment
  JEPS79942  Phlox adsurgens Joseph P. Tracy 1932-7-13 10488 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  UC572265  Phlox adsurgens H. S. Yates 1936-6-22 5849 Humboldt 4 mi ne Bald Mountain; China Flat Quad. Comment
  HSC82620  Phlox diffusa Thomas W. Nelson 1979-7-11 5004 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC39682  Phoradendron juniperinum Thomas W. Nelson, Jane Nelson 1976-6-16 2739 Humboldt Just W of Alder Springs. 1524 Comment
  HSC92126  Phyllospadix scouleri G. Smith 1967-7-21 1979 Humboldt Patrick's Point State Park 0 Comment
  CAS-BOT-BC452021  Phyllospadix torreyi W. R. Dudley 1899-1-1 s.n. Humboldt Trinidad Head Comment
  POM210091  Phyllospadix torreyi H. E. Parks 1933-11-12 s.n. Humboldt Spruce Cove, Trinidad. Comment
  CAS-BOT-BC73448  Picea sitchensis Ira L. Wiggins 1932-6-18 5870 Humboldt Hillside just north of mouth of Little River. Comment
  NY34414  Picea sitchensis L. Abrams 1916-7-18 6131 Humboldt Arcata to Trinidad Comment
  UC1174871  Picea sitchensis P. C. Everett and E. K. Balls 1959-10-25 Humboldt 3 mi s from Ferndale (on Old Coast Road to Capetown) 426 Comment
  CAS-BOT-BC73406  Pinus Doris Kildale Gillespie 1931-6-7 10587 Humboldt South Fork Mt., Blake Lookout. 1726 Comment
  HSC70580  Pinus attenuata Gail Newton 1980-7-24 1775 Humboldt Near Somes Mtn. 1615 Comment
  UC400255  Pinus contorta subsp. contorta P. E. Goddard 1901-8-1 Humboldt North Humboldt Bay Comment
  UC573158  Pinus contorta subsp. contorta H. S. Yates 1936-6-16 5660 Humboldt 1 mi sw Samoa 6 Comment
  CAS-BOT-BC73199  Pinus jeffreyi Doris K. Kildale 1926-9-5 2648 Humboldt Lassen's Peaks. Signal Peak. 1791 Comment
  HSC54523  Pinus jeffreyi Overton, Butler 1979-7-23 9455 Humboldt Near Horse Mountain Mine, close to the town of Willow Creek 1295 Comment
  HSC70538  Pinus lambertiana Gail Newton 1980-7-22 1661 Humboldt Near Devils Backbone 1646 Comment
  UC502909  Pinus lambertiana Joseph P. Tracy 8961 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  RSA249357  Piperia transversa J. D. Ackerman 1973-8-23 116 Humboldt 2 miles north of Manila Comment
  UC1196429  Piperia transversa Joseph P. Tracy 1936-8-8 15119 Humboldt head of Hors-Linto Creek Trinity Summit 1463 Comment
  HSC104332  Piperia transversa James Regan, Humboldt Redwood Co., LLC 2008-7-18 28 Humboldt Happy Valley, Bear River 579 Comment
  JEPS61027  Plagiobothrys hispidulus Joseph P. Tracy 1932-7-10 10386 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UC1239610  Plagiobothrys reticulatus Joseph P. Tracy 1936-6-21 14997 Humboldt Iaqua 609 Comment
  UC24546  Plagiobothrys reticulatus Harley P. Chandler May, 1901 1172 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 30 Comment
  UC526820  Plagiobothrys reticulatus Joseph P. Tracy 1933-5-20 12244 Humboldt Mattole Valley near Petrolia; Northern Coast Ranges, Mattole Valley 30 Comment
  OBI20592  Plagiobothrys reticulatus Joseph P. Tracy 1946-5-30 17541 Humboldt Carlotta. By Old Strong's District School House. 5 mi E of town, and at "Riverside Park" 61 Comment
  UC184235  Plagiobothrys reticulatus Joseph P. Tracy 1909-7-4 3009 Humboldt at Eureka; Northern Coast Region, Eureka 0 Comment
  UC180174 Image available Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1914-5-14 4469 Humboldt Fort Seward Northern Coast Ranges; Fort Seward, Humboldt Co. 121 Comment
  JEPS68128  Plagiobothrys tenellus Joseph P. Tracy 1932-5-1 9863 Humboldt near Garberville (Redway); Northern Coast Ranges 182 Comment
  UC585994  Plantago elongata Joseph P. Tracy 1927-6-26 8218 Humboldt Stone Lagoon 6 Comment
  HSC33750  Plantago erecta A. Montalvo 1975-5-24 282 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  UCD124573  Plantago lanceolata Linda M. Barker 1976-4-30 1401 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CDA6622  Plantago lanceolata T. C. Fuller 1962-8-6 9359 Humboldt Highway 299 to Blue Lake, 2.6 miles east of Bald Mtn. Summit Road. 1 mile west of Green Point School. 0 Comment
  RSA247394  Plantago lanceolata Gary D. Wallace 1966-9-12 706 Humboldt East of Arcata near Willow Creek along Hwy 299. Comment
  HSC16848  Plantago major Paul Shields Jun 1955 Humboldt 1 mi. N of Weott Comment
  HSC12018  Plantago major Wilbur Peterson 1970-10-28 93 Humboldt 1 mi. W of Blue Lake near R/R crossing Comment
  SJSU11078  Plantago maritima H. T. Harvey 1977-7-5 602 Humboldt Elk R Spit, Humboldt Bay Comment
  HSC16858  Plantago maritima D. E. Anderson 1961-9-13 1818 Humboldt Comment
  UC154021  Plantago subnuda J. P. Tracy 1906-6-17 2493 Humboldt immediate vicinity Eureka 0 Comment
  HSC54595  Platanthera dilatata var. leucostachys Overton, Butler 1979-7-24 9669 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC102050  Platanthera leucostachys M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 954 Humboldt Patterson Meadows 1555 Comment
  HSC31185  Platanthera sparsiflora D. E. Anderson 1972-6-20 5753 Humboldt N slope of Horse Mtn. Comment
  UC1222187  Platanthera sparsiflora Joseph P. Tracy 1950-7-2 18964 Humboldt 6 mi ne Hawkins Bar (at Fern Spring); Trinity Summit Range, Happy Camp Mountain, Fern Spring 1280 Comment
  BLMAR62  Platystemon californicus Jennifer Anthony-Wheeler 1994-4-6 62 Humboldt Samoa/manilla dunes, growing scattered throughout the dune mat 12 Comment
  SEINET516269  Platystemon californicus Vernon H. Oswald 1998-4-16 8915 Humboldt North Spit of Humbldt Bay, west side of New Navy Base Rd. 1.7 mi S of Hwy. 255. Comment
  UC602532  Plectritis brachystemon Joseph P. Tracy 1936-7-5 15037 Humboldt North Coast Range, Grouse Mountain Grouse Mountain; North Coast Range, Grouse Mountain 1524 Comment
  UC176954  Plectritis brachystemon Joseph P. Tracy 1913-6-23 4279 Humboldt between Van Duzen River and Mad River (on Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 1066 Comment
  UC1239596  Plectritis congesta Joseph P. Tracy 1935-6-23 13974 Humboldt French Camp Ridge 1066 Comment
  UC1239603  Plectritis congesta Joseph P. Tracy 1933-5-19 12199 Humboldt Alton to Fortuna (Eel River); Eel River 15 Comment
  UC999832  Plectritis congesta S. C. Dyal 1938-6-11 719 d Humboldt 2 mi e of Dinsmore Comment
  POM252663  Plectritis congesta subsp. brachystemon Joseph P. Tracy 1936-5-29 14823 .5 Humboldt French Camp Ridge. 1067 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
  UC1145105  Pleuropogon refractus Joseph P. Tracy 1947-7-5 17812 Humboldt near Box Camp (Trinity Summit); Trinity Summit 1524 Comment
  HSC10623  Poa annua Gene S. Van Horn 1962-5-2 10 Humboldt Near main house at 250 East 17th St., Arcata. 61 Comment
  UCD90863  Poa compressa Burle J. Jones 1939-6-5 s.n. Humboldt Lolita. Comment
  CAS-BOT-BC255118  Poa confinis Joseph P. Tracy 1927-6-26 8209 Humboldt Stone Lagoon 6 Comment
  POM126516  Poa confinis Joseph P. Tracy 1922-5-28 6056 Humboldt Little River Beach 6 Comment
  HSC10695  Poa douglasii J. W. Johnson 1962-5-6 1310 Humboldt W.M. Lanphere Farm, Samoa Peninsula. Comment
  HSC10702  Poa douglasii D. E. Anderson 1961-9-2 1772 Humboldt 3 mi. S of Cape Mendocino. 3 Comment
  POM161908  Poa howellii Joseph P. Tracy 1921-4-24 5451 Humboldt Phillipsville. Facing south fork of Eel River. 91 Comment
  UCD91135  Poa howellii A. H. Murphy 1950-5-10 s.n. Humboldt E. M. Cottrell Ranch, on Roth Road. Comment
  SEINET200573  Poa kelloggii Joseph P. Tracy 1911-6-4 3219 Humboldt Along Little River , Humbolt county , 5 miles from the coast 122 Comment
  CAS-BOT-BC254279  Poa macrantha Joseph P. Tracy 1933-5-20 12224 Humboldt Cape Mendocino, S of point of the Cape, near ocean shore 30 Comment
  UCD91542  Poa macrantha J. W. Congdon 1904-7-3 s.n. Humboldt on the Peninsula. City of Eureka. Comment
  RSA92307  Poa macrantha Joseph P. Tracy 1933-5-20 12224 Humboldt Cape Mendocino, near ocean shore, south point of the Cape. 3 Comment
  HSC40338  Poa pratensis Linda M. Barker 1976-6-1 1567 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UCD91845  Poa pratensis Les Berry 1956-6-20 s.n. Humboldt May Ranch, Bridgeville. Comment
  UCD91935  Poa pratensis A. H. Murphy 1951-4-19 11 Humboldt Tooby and Prior Ranch, 2 miles south of Blocksburg. Comment
  HSC101481  Poa pratensis subsp. pratensis J. P. Smith 2010-5-29 12888 Humboldt Eureka. Abandoned railroad right-of-way along Railroad Ave., just south of its junction with West 14th. 2 Comment
  UC1132727  Poa pratensis subsp. pratensis H. S. Yates 1936-5-23 5854 Humboldt 2 mi e of mouth of Mad River; Eureka Quadrangle Comment
  UC249872  Poa pratensis subsp. pratensis Joseph P. Tracy 1923-6-3 6254 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC74129  Poa secunda subsp. secunda R. York 1980-5-23 618 Humboldt Near Buck Mtn. 1524 Comment
  UC39714  Poa unilateralis Harley P. Chandler May, 1901 1140 Humboldt Humboldt Bay; North Coast Ranges 3 Comment
  RSA53801  Polygonum coccineum H. M. Pollard 1946-9-1 s.n. Humboldt Near Wilson Creek, Orleans region. Comment
  UC1198076  Polygonum davisiae Joseph P. Tracy 1932-7-12 10482 Humboldt Brett Hole Trinity Summit (head) 1828 Comment
  UC672934  Polygonum douglasii subsp. spergulariiforme Joseph P. Tracy 1939-10-29 16520 Humboldt Kneeland Prairie 822 Comment
  HSC54878  Polygonum minimum G. L. Clifton, Griswold 1979-7-25 10873 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC57966  Polygonum minimum G. L. Clifton, Griswold 1979-7-31 11683 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  POM129566  Polygonum paronychia Grout, S. Grout 1910-09 s.n. Humboldt Eureka. Comment
  UCSC000204  Polygonum paronychia H. S. Yates 1936-6-16 5656 Humboldt 0.5 mile S.W. of Samoa - Eureka 3 Comment
  UC55512  Polygonum persicaria Mrs. M. H. Manning 1900-1 Humboldt Hoopa Comment
  CAS-BOT-BC421011  Polygonum spergulariiforme Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC218626  Polypodium Joseph P. Tracy 1918-4-7 4865 Humboldt mouth of Little River; Northern Coast Ranges 15 Comment
  SEINET204934 Image available Polypodium californicum C. O. Baker 4 Humboldt 2 miles south of Trinidad along old 101 highway 122 Comment
  CAS-BOT-BC71831  Polypodium californicum Ira L. Wiggins 1957-6-21 14141 Humboldt E side of road, 1 mi. S of Garberville Comment
  HSC79433  Polypodium californicum Kenneth Clark 1981-4-5 1229 Humboldt Dead Man's Gulch 69 Comment
  SEINET200791 Image available Polypodium glycyrrhiza Joseph P. Tracy 1914-5-14 4429 Humboldt Fort Seward 122 Comment
  RSA24197  Polypodium glycyrrhiza C. B. Wolf 1941-3-1 9976 Humboldt 4 mi NE of Strongs Station (Van Duzen River) on Rd. to Yager 152 Comment
  UC1746694  Polypodium glycyrrhiza R. M. and A. F. Tryon Jun 1958 5560 Humboldt NW of Weott; S fork of the Eel River Comment
  UC249781  Polypodium glycyrrhiza Joseph P. Tracy 1924-2-24 6602 Humboldt along Eel River from S Fork to Scotia (near McKee's Mill); Northern Coast Ranges 60 Comment
  CAS-BOT-BC72080  Polypodium scouleri Joseph P. Tracy 1933-6-6 12510 Humboldt Trinidad 6 Comment
  CAS-BOT-BC232958  Polypogon australis Mrs. H. C. Cantelow 1961-5-29 s.n. Humboldt 5.7 km Eel River, Hartsook Comment
  JEPS72934  Polypogon interruptus Lincoln Constance 1934-5-31 766 Humboldt n side of Bull Creek from w boundary of park to Grasshopper Pk. (Squaw Cr.) Bull Creek Region (Bull Cr. Flat, Bull Creek Region, South Fork Eel River); South Fork Eel River, , along Bull Creek Comment
  UC1145081  Polypogon interruptus Joseph P. Tracy 1940-10-5 16748 Humboldt Trinidad 6 Comment
  HSC91882  Polypogon monspeliensis E. Mackey 1986-5-13 Humboldt Patrick's Point State Park. By Wedding Rock. Comment
  UC50607  Polypogon monspeliensis Joseph Burtt Davy and Walter C. Blasdale 1899-6-15 5549 Humboldt near Scotia; near Scotia Comment
  CAS-BOT-BC102905  Populus trichocarpa Doris K. Kildale 1926-3-24 1618 Humboldt Lindsey Creek bridge - Lower Mad River 26 Comment
  CAS-BOT-BC102906  Populus trichocarpa H. E. McMinn 1922-8-5 351 Humboldt Along the Van Dusen River Comment
  CAS-BOT-BC102909  Populus trichocarpa Doris K. Kildale 1927-5-15 3155 Humboldt Petrolia, Mattole River Valley Comment
  UCD110730  Populus trichocarpa Joseph P. Tracy 1932-5-1 9896 Humboldt Vicinity of Garberville. 121 Comment
  UC672879  Potamogeton foliosus Joseph P. Tracy 1934-8-14 13567 Humboldt Eel River, Alton to Fortuna Eel River 15 Comment
  SEINET3837233  Potamogeton natans Unknownnown 1949-8-9 1229 Humboldt Marshy Pond 1 mile north of Arcata at junction of Highways 101 and 299, Mad River Valley Comment
  UC1099846  Potamogeton natans Malcolm A. Nobs, S. Galen Smith 1949-8-9 1229 Humboldt 1 mi n of Arcata (at junction of Highways 101 and 299); Mad River Valley Comment
  HSC17759  Potamogeton nodosus Rollin Sparrowe 1962-4-7 11 Humboldt Clam Beach Lagoons off Hwy. 101 Comment
  UC672877  Potamogeton pectinatus Joseph P. Tracy 1933-8-22 12983 Humboldt 1 mi w of Loleta (Mouth of Eel River); Eel River 3 Comment
  POM343769  Potamogeton pusillus S. K. Harris 1938-9-12 808 Humboldt Shallow backwater of Eel River, near Fernbridge Comment
  HSC18724  Potentilla anserina subsp. pacifica S. J. Hawks 1965-5-14 66 Humboldt 2 mi. NW of McKinleyville Comment
  HSC18730  Potentilla anserina subsp. pacifica J. F. Knezevich 1967-5-23 453 Humboldt N of Trinidad at Big Lagoon 15 Comment
  UC154046  Potentilla gracilis var. gracilis Joseph P. Tracy 1908-6 2752 Humboldt nw slope Buck Mountain; Northern Coast Ranges, nw slope Buck Mountain 762 Comment
  HSC103987  Prosartes smithii E. R. Fyer 2015-4-29 31 Humboldt Arcata Community Forest 129 Comment
  HSC37366  Prosartes smithii Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 499 Humboldt Along Lost Man Creek. 38 Comment
  HSC15480  Prosartes smithii W. F. Nickel 1965-5-15 Humboldt 0.5 mi. E of Arcata on rd. to Arcata Reservoir Comment
  SEINET12050892  Prosartes smithii F. H. Utech 1977-1 77 -370 Humboldt ca 4.5 mi S of Del Norte County line on US 101 enroute to Crescent City Comment
  RSA134596  Prunella vulgaris var. lanceolata Percy C. Everett, E. K. Balls 1959-10-25 23961 Humboldt 14 miles W of Willow Creek on Hwy 299 to Arcata. 503 Comment
  UC1196728  Prunella vulgaris var. lanceolata J. P. Tracy 1900-7-22 903 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC159984  Prunus emarginata Doris Kildale Gillespie 1931-6-7 10593 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  CDA26145  Prunus emarginata Gordon Leppig 1998-6-1 864 Humboldt Horse Mountain. Buck Flat, Titlow Hill Road at Ammon Ridge Road. Comment
  HSC74178  Prunus emarginata M. A. Baker 1980-7-23 3185 Humboldt Near Orleans Mtn. 1859 Comment
  UCD135199  Pseudognaphalium beneolens Linda M. Barker 1976-8-24 1685 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC5694  Pseudognaphalium ramosissimum Jerry Parker 1968-11-19 244 Humboldt Clam Beach, 1/4 mi. S of Strawberry Cr. Comment
  UC582514  Pseudognaphalium ramosissimum Joseph P. Tracy 1928-9-9 8506 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  HSC67443  Pseudognaphalium stramineum J. P. Smith 1971-10-6 4936 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC37672  Pseudognaphalium stramineum R. Sutherland 1976-8-19 8 .19876 Humboldt 259 Comment
  CAS-BOT-BC80111  Pseudotsuga menziesii Doris K. Kildale 1925-12-27 1463 Humboldt Kneeland Prairie 762 Comment
  SEINET11737772  Pseudotsuga menziesii K. S. Erdman 1970-1 4792 Humboldt Redwood National Park near Holter Ridge entrance along Bald Hills Road, SE of Orick Comment
  UC198649  Psilocarphus tenellus Joseph P. Tracy 1917-5-27 4783 Humboldt Eureka Northern Coast Ranges 0 Comment
  UC1222154  Pterospora andromedea Joseph P. Tracy 1950-8-8 19274 Humboldt 3 mi e Box Camp; Trinity Summit Comment
  CAS-BOT-BC462868  Pyrola asarifolia Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  SJSU909  Pyrola asarifolia J. W. Tilden 1946-6-21 1013 Humboldt Bluff Cr c. 1.5 mi above Klamath R Comment
  HSC55263  Pyrola crypta Overton, Butler 1979-8-2 12608 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC74406  Pyrola crypta Gail Newton 1980-8-10 2018 Humboldt Near Blake Mtn. 1798 Comment
  HSC98808  Pyrola dentata Cara Witte 2008-7-30 980 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N32E. Comment
  UC314638  Pyrola picta Joseph P. Tracy 1926-6-6 7556 Humboldt near summit on road w from Hoopa to Bair's, Hoopa Mountain, Northern Coast Ranges Hoopa Mountain; Northern Coast Ranges, Hoopa Mountain 1066 Comment
  CAS-BOT-BC36510  Quercus Doris Kildale 1931-5-10 10580 Humboldt Snow Camp Comment
  HSC54572  Quercus chrysolepis Overton, Butler 1979-7-24 9606 Humboldt Near Titlow Hill, close to the town of Willow Creek. 381 Comment
  HSC99031  Quercus chrysolepis Cara Witte 2008-7-3 827 Humboldt Friday Ridge Road/ 6N08. Approximately 1 mile north of intersection with National Forest 1. 1567 Comment
  POM270213  Quercus chrysolepis Lyman Benson 1928-7-14 519 Humboldt Richardon's Grove of Redwoods, Redwood Highway, south county boundary, Middle N Coast Mt. Range, South Fork of Eel River. 122 Comment
  HSC48346  Quercus garryana Maralyn O'Meara 1974-7-11 527 Humboldt Kneeland, Barry Ridge Comment
  HSC8236  Quercus garryana D. E. Anderson 1961-9-3 1778 Humboldt Comment
  SDSU6968  Quercus garryana Harvey 1938-8-14 3104 Humboldt Between Arcata and Willow Creek U.S. 299. Comment
  UC1196524  Quercus garryana Joseph P. Tracy 1924-8-31 6857 Humboldt Klamath River at Bluff Creek Northern Coast Ranges 91 Comment
  HSC55093  Quercus garryana var. breweri G. L. Clifton, Griswold 1979-7-31 11796 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  RSA46718  Quercus garryana var. garryana Doris K. Kildale 1937-8-29 15352 Humboldt Dinsmore's. Comment
  CAS-BOT-BC105161  Quercus kelloggii Doris K. Kildale 1926-4-11 1759 Humboldt Bridgeville 228 Comment
  UC502987  Quercus kelloggii Joseph P. Tracy 1929-4-28 8542 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC72682  Quercus sadleriana J. P. Smith 1977-7-3 9264 Humboldt Onion Lake Comment
  SEINET3823284 Image available Quercus sadleriana Joseph P. Tracy 1947-8-24 17909 Humboldt Trinity Summit, Box Camp 1524 Comment
  UCD47218  Quercus sadleriana D. Sanchez-Mata 1997-9-20 s.n. Humboldt Hoopa. Big Hill Lookout Road. Successional shrubland plant communitites on logged Douglas fir forests. 1230 Comment
  HSC98273  Quercus vacciniifolia Blaze Baker, Matthew Barmann, Michael Max Hentz 1993-4-30 2 Humboldt Horse Mtn. near the radio towers on the uphill side of 6N36 1510 Comment
  RSA622137  Quercus vacciniifolia J. M. Tucker 1948-9-3 1851 Humboldt Horse Mountain, at junction of roads to Grouse Mountain and to Horse Mountain Mine, Six Rivers National Forest. 1463 Comment
  UC1196529  Quercus vacciniifolia Joseph P. Tracy 1949-8-26 18526 1/2 Humboldt 2 mi e Grove's Prairie; North Coast Ranges, Trinity Summit 1524 Comment
  UC902026  Quercus vacciniifolia Joseph P. Tracy 1949-8-26 18526 Humboldt 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  UCD97349  Ranunculus K. Twitchell 1996-5-11 26 Humboldt Crannell. Coastal cliffs along old Highway 101 at Moonstone beach access. 36 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
  UC162922  Ranunculus californicus Joseph P. Tracy 1911-5-27 3191 Humboldt Humboldt Bay Northern Coast Region (sand dunes of beach) Comment
  HSC18212  Ranunculus flammula var. ovalis R. D. Modafferi 1965-5-13 71 Humboldt 2.3 mi. N of Trinidad on Trinity St. 305 Comment
  UC486518  Ranunculus occidentalis Parks and Tracy 1930-5-25 859 Humboldt Laribee Valley; along small stream, eastern Humboldt Co. Comment
  HSC18159  Ranunculus occidentalis var. occidentalis A. E. Inman 1962-5-25 Humboldt Mad River, Lindsey Creek junction: N Bank; 100 yards W of Lindsey Creek Comment
  HSC76583  Ranunculus occidentalis var. occidentalis Denis Kearns 1981-7-23 408 Humboldt Near Whiteys Peak. 1524 Comment
  SEINET6908794  Ranunculus occidentalis var. occidentalis Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Near serpentine outcrops, about 4 miles southeast of Kneeland. Comment
  HSC70952  Ranunculus orthorhynchus J. M. DiTomaso 1981-5-15 2008 Humboldt Larabee Valley, 10 mi. E of Bridgeville on Hwy. 36 Comment
  UCD97062  Ranunculus orthorhynchus var. platyphyllus R. N. Raynor 1935-5-22 s.n. Humboldt Fort Seward. Comment
  UC1116205  Ranunculus parviflorus Joseph P. Tracy 1946-6-15 17559 Humboldt on Trinity Hwy e Redwood Creek; Berrys Mt. 609 Comment
  HSC90641  Ranunculus repens Gail Newton 1982-6-10 3613 Humboldt Elk River Wildlife Area, Eureka Comment
  UC1191438  Ranunculus repens Malcolm A. Nobs and S. Galen Smith 1949-8-3 1184 Humboldt Eureka; marsh and bog land at southern outskirts Comment
  UC160952  Ranunculus repens Joseph P. Tracy 1910-6-5 3150 Humboldt region about Humboldt Bay Northern Coast Region (marshes) 0 Comment
  HSC56212  Ranunculus uncinatus G. L. Clifton, Griswold 1979-8-2 12220 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC64069  Raphanus sativus J. P. Smith 1971-10-6 4978 Humboldt End of Murray Rd. in McKinleyville. Comment
  JEPS42054  Rhamnus californica Lincoln Constance 1934-6-13 872 Humboldt just below Redwood Hwy. (e bank of South Fork Eel River, n Dyerville Flat); South Fork Eel River, Bull Creek Region, Dyerville Flat Comment
  UC535751  Rhamnus californica Eleanor Armstrong 1934-8-24 1142 Humboldt Richardson Grove 121 Comment
  UC61088  Rhamnus californica subsp. californica P. E. Goddard 1901-6-9 19 Humboldt Hupa Comment
  RSA171022  Rhamnus californica subsp. occidentalis Robert F. Thorne 1957-9-2 19008 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  CAS-BOT-BC55967  Rhamnus ilicifolia Volney Rattan 1882-6-1 s.n. Humboldt unspecified Comment
  JEPS41952  Rhamnus purshiana W. L. Jepson 1902-7-15 2032 Humboldt Mud Spring to Trinity Summit 1219 Comment
  UC1197984  Rhamnus purshiana J. P. Tracy 1901-8-11 1276 Humboldt immediate vicinity Eureka 0 Comment
  UC1541476  Rhamnus purshiana Harold E. Parks May 1935 5541 Humboldt Spruce Cove Trinidad Comment
  UC198576  Rhamnus purshiana Joseph P. Tracy 1917-9-2 4847 Humboldt Grouse Mt. Northern Coast Ranges 1524 Comment
  UC630478  Rhamnus purshiana H. E. and S. T. Parks Jun 1937 24018 Humboldt Spruce Cove Trinidad Comment
  HSC23118  Rhododendron columbianum Norman Dennis 1965-6-3 143 Humboldt Big Lagoon County Park, SW corner of Big Lagoon Comment
  CAS-BOT-BC56609  Rhododendron macrophyllum C. B. Wolf 1931-8-29 2370 Humboldt Near summit of Orick Hill on road to Weitchpec 304 Comment
  CAS-BOT-BC56614  Rhododendron macrophyllum Ella Dales Cantelow 1936-5-17 1235 Humboldt 9 mi. e. of Orick Comment
  HSC76365  Rhododendron macrophyllum Denis Kearns 1981-7-6 66 Humboldt Near Mosquito Lake 1256 Comment
Read comments
Jul 30 2014
  HSC7878  Rhododendron macrophyllum D. E. Anderson 1961-8-11 1732 Humboldt E of Humboldt State University campus 30 Comment
  SEINET11996978  Rhododendron macrophyllum F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -297 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  CHSC19505  Rhododendron neoglandulosum Norman Dennis 1965-6-3 143 Humboldt Big Lagoon County Park, southwest corner of Big Lagoon. Comment
  HSC97939  Rhododendron occidentale Cara Witte 2007-6-19 290 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near Horse Mountain mine. 1289 Comment
  UC604616  Rhododendron occidentale Joseph P. Tracy 1938-6-16 15945 Humboldt Trinidad 60 Comment
  UCSB4803  Rhododendron occidentale Phillips, Priscilla 1958-6-7 Humboldt Highway 101, 14.1 mi. south of Prairie Creek Redwoods State Park (north of Trinidad) Comment
  RSA69331  Rhododendron occidentale var. paludosum F. W. Peirson 1923-7-11 3801 Humboldt 7 miles N of Arcata. Comment
  RSA183639  Ribes bracteosum D. E. Anderson 1965-5-8 3632 Humboldt 0.6 miles west of bridge over North Fork of Mad River, along Highway 299 Comment
  UC70553  Ribes bracteosum J. Burtt Davy 1899-6-13 5504 Humboldt near Camp Grant; North Coast Ranges, Eel River Comment
  CAS-BOT-BC108905  Ribes divaricatum var. pubiflorum L. R. Abrams 1922-6-25 8248 Humboldt Near South Bay. Comment
  CAS-BOT-BC108910  Ribes divaricatum var. pubiflorum Doris K. Kildale 1927-6-28 3607 Humboldt Lower Mad River near Covered Bridge on Redwood Highway. Comment
  UC1541338  Ribes divaricatum var. pubiflorum Parks and Parks 1932-4-10 Humboldt Blue Slide Van Duzen River Comment
  HSC103234  Ribes lacustre Jade Paget-Seekins 2010-6-26 29 Humboldt On Long Ridge Road, up Big Hill Road outside of Hoopa. 1274 Comment
  HSC75414  Ribes lacustre J. O. Sawyer, M. A. Ericksen 1980-7-18 3646 Humboldt Along FS Rd. 10N02, S of Middle Fork of Mill Creek Comment
  UC492208  Ribes lacustre Joseph P. Tracy 1932-7-16 10623 Humboldt near Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  HSC69887  Ribes lobbii Thomas W. Nelson, Jane P. Nelson 1977-7-30 3665 Humboldt Beside State Rte. 36, 1 mi. E of Dinsmore. 732 Comment
  HSC103132  Ribes lobbii M. Mesler 2009-9-7 816 Humboldt Trail to Mill Creek Lakes, above Hoopa 1646 Comment
  CAS-BOT-BC206044  Ribes menziesii Doris K. Kildale 1928-2-19 4272 Humboldt Patrick's Point Comment
  HSC20313  Ribes menziesii D. E. Anderson 1962-3-31 1960 Humboldt Old Hwy. 101, E side of Freshwater Lagoon Comment
  UC154124  Ribes menziesii J. P. Tracy 1909-2-14 2941 Humboldt immediate vicinity Eureka 0 Comment
  HSC32154  Ribes roezlii D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5594 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  CAS-BOT-BC198904  Ribes roezlii var. cruentum Peter H. Raven; R. Snow 1958-7-20 13630 Humboldt Friday Ridge Road to Grouse Mountain, 10.8 miles southwest of junction with United States Highway 299. Comment
  CAS-BOT-BC211980  Ribes sanguineum J. H. Thomas 1949-6-13 914 Humboldt Along trail between Le Perron Flat and Whiteys Peak, east of town of Orleans, Six Rivers National Forest 1371 Comment
  HSC20341  Ribes sanguineum M. S. Miller 1965-4-2 18 Humboldt Arcata, HSC campus Comment
  HSC33053  Ribes sanguineum Thomas W. Nelson, Jane Cole, Brad Klipfel 1974-5-8 1241 Humboldt Horse Mtn. area 1220 Comment
  HSC71794  Ribes sanguineum Gail Newton 1980-6-16 174 Humboldt Near Monks Camp. 1097 Comment
  HSC90030  Ribes sanguineum Andrew Enberg, Brad Penkala, Dan Scofield 1990-4-27 62 Humboldt Titlow Rd. 0.5 mi. S of its intersection with Hwy. 299 854 Comment
  CAS-BOT-BC144676  Ribes sanguineum var. glutinosum Kenneth Clark 1980-3-1 520 Humboldt lower and middle terraces of Dead Man's Gulch 36 Comment
  RSA0018248  Ribes sanguineum var. glutinosum C. Epling, Wm. Robinson 1935-7-22 s.n. Humboldt Patrick s Point. Comment
  RSA0018246  Ribes sanguineum var. sanguineum Thomas W. Nelson 1977-6-15 3426 Humboldt Along Forest Road 5N10 just north of junction with Road 6N08. 1372 Comment
  CAS-BOT-BC173993  Ribes viscosissimum Joseph P. Tracy 1932-7-12 10466 Humboldt Ridges East of Corral Prairie 1828 Comment
  HSC99134  Rigiopappus leptocladus Cara Witte 2008-7-2 794 Humboldt National Forest Road 1; 5 miles south of intersection with 5N04. Before cattle guard crossing. 1406 Comment
  CAS-BOT-BC74507  Rorippa curvisiliqua Doris K. Kildale 1929-5-26 9140 Humboldt Klamath River at Orleans. 152 Comment
  UC492263  Rorippa curvisiliqua Joseph P. Tracy 1931-9-7 9667 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC161000  Rosa Joseph P. Tracy 1911-7-7 3410 Humboldt 3 mi nw junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  UC902154  Rosa Joseph P. Tracy 1949-8-7 18438 Humboldt near Box Camp; Trinity Summit 1524 Comment
  HSC70703  Rosa gymnocarpa Gail Newton 1980-7-14 1547 Humboldt Near Deadman Ridge 362 Comment
  OBI35864  Rosa gymnocarpa David J. Keil 1983-7-2 17330 Humboldt Horse Mtn Summit SW of Willow crk Comment
  RSA67383  Rosa gymnocarpa Philip A. Munz 1951-9-17 16995 Humboldt 1 mile S of Pepperwood Comment
  UCD113883  Rosa gymnocarpa T. E. Weier 1942-5-21 s.n. Humboldt Perriot's Redwood Grove, near Dyerville, Highway 101. Comment
  CAS-BOT-BC146845  Rosa nutkana Doris Kildale Gillespie 1931-6-7 10644 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  UCD113888  Rosa nutkana H. P. Olmo 1931-6-8 s.n. Humboldt 5 miles north of Trinidad, Redwood Highway. Comment
  JEPS47246  Rosa nutkana var. nutkana Mr. and Mrs. Geo. Parrish 1930-5-21 Humboldt Trinidad Comment
  UC588192  Rosa nutkana var. nutkana H. E. and S. T. Parks May 1937 5816 Humboldt Spruce Cove Trinidad 60 Comment
  CAS-BOT-BC148341  Rosa pisocarpa L. R. Abrams 1916-7-18 6077 Humboldt Between Arcata & Trinidad Comment
  UC667034  Rosa pisocarpa Joseph P. Tracy 1939-8-16 16403 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC146882  Rosa rubiginosa Alice Eastwood 1921-7-21 10650 Humboldt Carlotta Comment
  UC302102  Rubus laciniatus Joseph P. Tracy 1926-11-7 7828 Humboldt opposite Scotia (along Eel River from South Fork to Scotia); Northern Coast Ranges, along Eel River 60 Comment
  UC1193204  Rubus leucodermis P. Zinke 1950-8-4 152 Humboldt two mi w Harris Post Office; Quad. 29D3, w of Harris Post Office 853 Comment
  HSC19657  Rubus parviflorus D. K. Smith 1968-3-31 8 Humboldt W End Rd. 3 mi. from Hwy. 299 Comment
  HSC19659  Rubus parviflorus W. R. Brigham 1962-5-20 15 Humboldt Side of Old Hwy. 101, N of Big Lagoon rd. Comment
  HSC56189  Rubus parviflorus Gilbert Muth 1979-8-1 12126 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC57011  Rubus parviflorus Overton, Butler 1979-7-24 9604 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1250 Comment
  HSC73171  Rubus parviflorus M. A. Baker 1980-5-18 1346 Humboldt Near Black Mtn. 792 Comment
  CAS-BOT-BC156724  Rubus spectabilis M. S. Jussel 1931-5-2 s.n. Humboldt Eureka Comment
  HSC19687  Rubus spectabilis R. E. Hafenfeld 1965-5-9 6 Humboldt 1/4 mi. from County Rd. and Gold Bluff Beach Rd. jct. Comment
  POM271104  Rubus spectabilis Lyman D. Benson 1929-7-15 1812 Humboldt Clam Beach, Trinidad. Comment
  CAS-BOT-BC158792  Rubus ursinus Joseph P. Tracy 1946-8-25 17637 Humboldt Field's Landing, 2 miles above town. 6 Comment
  HSC56441  Rubus ursinus Griswold, Butler 1979-7-12 7182 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  JEPS44749  Rubus ursinus W. L. Jepson 1902-7-1 1965 Humboldt Hupa Road near Redwood Creek; near Redwood Creek, Hupa Road Comment
  UC719828  Rubus ursinus Rogers McVaugh 1941-8-3 6220 Humboldt ca 1 1/4 mi s H.Q. Patrick's Point State Park; s of H.Q. Patrick's Point State Park Comment
  UCD113990  Rubus ursinus Linda M. Barker 1976-6-1 1565 Humboldt 3 miles west of Arcata. Comment
  UCD17846  Rubus ursinus H. Olmo 8-10 May 1962 62- 33 Humboldt California. Humboldt County: along Route 36 between Grizzly Creek Redwoods State Park and Dinsmore. Comment
  RSA20785  Rudbeckia occidentalis C. B. Wolf 1937-8-13 9250 Humboldt North Coast Range, 11 miles E of Hoopa Valley on new road towards Trinity Summit 1524 Comment
  HSC37419  Rumex crispus Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 515 Humboldt Along Lost Man Creek. 38 Comment
  CDA2893  Rumex obtusifolius T. C. Fuller 1958-6-17 590 -58 Humboldt Hydesville. 0 Comment
  HSC17604  Rumex persicarioides D. E. Anderson 1961-9-13 1812 Humboldt Trinidad Beach Comment
  UC146144  Rumex salicifolius var. crassus Joseph P. Tracy 1906-9-29 2549 Humboldt Samoa Northern Coast Region, Humboldt Bay Region 0 Comment
  HSC40219  Sagina apetala Barbara Kelly 1977-4-6 290 Humboldt N Spit 100 yds. W of Coast Guard Station Comment
  HSC35624  Salicornia depressa Thomas W. Nelson, James Nelson 1975-8-5 2137 Humboldt Along S spit of Humboldt Bay ca. 1 mi. N of Table Bluff. Comment
  CAS-BOT-BC132708  Salix A. T. Whittemore 1980-3-15 80 -008 Humboldt Arcata, in residential area, along Alliance Road from Foster Ave. to the railroad tracks Comment
  SD37464  Salix Edith A. Purer 1932-7-30 4677 Humboldt S of Orick, sand dunes Comment
  UC490588  Salix Joseph P. Tracy 1932-4-17 9798 Humboldt Alton to Fortuna; Northern Coast Region, Eel R. 15 Comment
  UC512022  Salix exigua var. hindsiana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1336 Humboldt 1 mi below bridge on Trinity Hwy. (on ...bank above Trinity R.) 152 Comment
  CAS-BOT-BC104097  Salix hindsiana Harold E. Parks; Joseph P. Tracy 1931-5-17 0970 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC107711  Salix hookeriana L. R. Abrams; G. T. Benson 1924-5-17 10734 Humboldt Eureka Comment
  CAS-BOT-BC107737  Salix hookeriana Jim Davis 1933-4-25 4 Humboldt Around Eureka Comment
  HSC40380  Salix hookeriana Linda M. Barker 1976-3-22 1341 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC59397  Salix hookeriana Rick Lundquist 1979-4-27 44 Humboldt N spit along Samoa Rd., across from Samoa boat ramp 0 Comment
  JEPS12959  Salix hookeriana Joseph P. Tracy 1931-9-20 9686 Humboldt mouth of Little River; Northern Coast Ranges 6 Comment
  POM167518  Salix hookeriana Joseph P. Tracy 1918-4-7 4863 Humboldt Dows Prairie Sand Dunes. At mouth of Strawberry Creek. 6 Comment
  RSA183589  Salix hookeriana R. D. Zortman 1963-3-9 11 Humboldt 5 miles NE of Arcata. S of the Mad River, off Warren Creek Rd. 91 Comment
  UC1196679  Salix hookeriana Joseph P. Tracy 1925-2-1 6929 Humboldt slope of bluff near Salmon Creek Corners; Northern Coast Region, around Humboldt Bay, Table Bluff 60 Comment
  UC146206  Salix hookeriana J. P. Tracy 1904-4 2036 /2137 Humboldt Immediate vicinity of Eureka 0 Comment
  UC481269  Salix hookeriana Harold E. Parks 1931-5-28 1000 Humboldt Little River Lagoon Comment
  UC481397  Salix hookeriana Harold E. Parks 1931-3-24 914 Humboldt Fortuna Eel River (banks of river) 10 Comment
  UC490475  Salix hookeriana H. E. Parks and Joseph P. Tracy 1932-8-13 10342 Humboldt vicinity of Trinidad; Northern Coast Region 60 Comment
  UC492344  Salix hookeriana Harold E. and Susan T. Parks 1932-4-10 1103 a Humboldt Little River Lagoon Trinidad Comment
  UC495606  Salix hookeriana Joseph P. Tracy 1932-10-12 10873 Humboldt S. Fork Eel R. Miranda; Northern Coast Ranges, S. Fork Eel River 121 Comment
  UC519325  Salix hookeriana Joseph P. Tracy 1933-10-8 13089 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges 91 Comment
  UC709426  Salix hookeriana Joseph P. Tracy 1941-8-3 16980 Humboldt Table Bluff; adjoining coast sand dunes at w end of bluff 3 Comment
  HSC19978  Salix lasiandra J. W. Johnson 1962-3-7 1171 Humboldt Next to the barn of the Lanphere Farm, Samoa Peninsula 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
  UC490524  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1932-4-17 9797 Humboldt Alton to Fortuna (Eel R.); Northern Coast Region, Eel R. 15 Comment
  CAS-BOT-BC125227  Salix lasiandra var. lasiandra Harold E. Parks 1931-3-24 0911 Humboldt Fortuna, on banks of Eel River 10 Comment
  CAS-BOT-BC128189  Salix lasiandra var. lasiandra Harold E. Parks 1931-5-14 0959 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  HSC96610  Salix lasiandra var. lasiandra Gordon Leppig 2005-4-8 2210 Humboldt Eureka, edge of PALCO Marsh at W end of W Hawthorne St. 3 Comment
  CAS-BOT-BC107101  Salix lasiolepis Joseph P. Tracy 1934-3-11 13146 Humboldt Weitchpec, frequent along Klamath River 91 Comment
  CAS-BOT-BC107590  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-17 1321 Humboldt On banks of Redwood Creek, at Berry's, on Trinity Highway 274 Comment
  HSC96360  Salix lasiolepis Gordon Leppig 1999-7-9 1188 Humboldt Big Lagoon County Park; Big Lagoon Bog 3 Comment
  HSC99119  Salix lasiolepis Cara Witte 2008-6-13 726 Humboldt Forest Service Road 4N32. 1 mile south of intersection with Forest Service Road 4N32E. 1455 Comment
  JEPS14780  Salix lasiolepis Joseph P. Tracy 1933-4-9 10964 Humboldt Bridgeville; Northern Coast Ranges 228 Comment
  UC1173595  Salix lasiolepis Joseph P. Tracy 1935-4-5 13773 Humboldt along river near Blue Lake; Mad River 15 Comment
  UC1196616  Salix lasiolepis Joseph P. Tracy 1934-3-4 13143 Humboldt Miranda South Fork of Eel River 121 Comment
  UC176177  Salix lasiolepis Joseph P. Tracy 1912-7-26 3840 Humboldt Kneeland Prairie, Lawrence Creek Northern Coast Ranges, Kneeland Prairie, Lawrence Creek 762 Comment
  UC275523  Salix lasiolepis Joseph P. Tracy 1923-4-15 6189 A Humboldt Redwood Creek, at Berry's 274 Comment
  UC469431  Salix lasiolepis Joseph P. Tracy 1931-9-27 9690 Humboldt Alton to Fortuna (Eel R.); Northern Coast Region, Eel River 15 Comment
  UC470415  Salix lasiolepis Joseph P. Tracy 1931-10-3 9702 Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  UC490548  Salix lasiolepis Joseph P. Tracy 1932-4-24 9805 Humboldt between Miranda and Redway (S. Fork Eel R.); North Coast Ranges, S. Fork Eel R. 91 Comment
  UC506384  Salix lasiolepis Joseph P. Tracy 1933-4-2 10961 Humboldt on Trinity Hwy e Redwood Creek; Northern Coast Ranges, Berry's Mt. 762 Comment
  UC506393  Salix lasiolepis Joseph P. Tracy 1932-6-19 10243 Humboldt Buck Mountain Northern Coast Ranges (nw slope, lower foothills) 762 Comment
  UC511980  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1247 Humboldt Van Duzen R. at Blue Slide; Van Duzen R., Blue Slide 91 Comment
  UC512117  Salix lasiolepis Joseph P. Tracy 1933-4-2 10959 Humboldt on Trinity Hwy e Redwood Creek; Berry's Mountain 762 Comment
  UC519344  Salix lasiolepis Joseph P. Tracy 1933-10-15 13090 Humboldt along river near Miranda; Coast Ranges, South Fork of Eel River 91 Comment
  UCSB10872  Salix lasiolepis Parks, Harold; Parks, Susan 1931-8-15 Humboldt Blue Slide, Van Duzen River 100 Comment
  CAS-BOT-BC107412  Salix lasiolepis var. lasiolepis Alice Eastwood 1907-4-21 24 Humboldt Trinidad Comment
  SBBG29044  Salix lucida subsp. lasiandra H. E. Parks 1931-3-24 911 Humboldt banks of Eel River, Fortuna 10 Comment
  CAS-BOT-BC125612  Salix melanopsis W. R. Dudley 1899-6-21 s.n. Humboldt At the junction, the south and north forks of Eel River Comment
  CAS-BOT-BC125633  Salix melanopsis Harold E. Parks 1931-10-15 01077 Humboldt Bishop Pine Lodge, Trinidad 75 Comment
  CAS-BOT-BC125635  Salix melanopsis Harold E. Parks 1931-5-14 0960 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  CAS-BOT-BC125636  Salix melanopsis Harold E. Parks; Joseph P. Tracy 1931-5-17 0973 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC125639  Salix melanopsis Harold E. Parks 1931-8-25 01060 Humboldt Blue Slide, Van Duzen River 90 Comment
  SBBG57924  Salix melanopsis H. E. Parks 1931-10-15 1077 Humboldt Bishop Pine Lodge, Trinidad 75 Comment
  SD976  Salix melanopsis Harold E. Parks 1931-5-14 964 Humboldt Van Duzen River between Alton and Carlotta 14 Comment
  UC481267  Salix melanopsis Harold E. Parks 1931-5-28 1025 Humboldt Little River Lagoon Comment
  UC481828  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 284 Humboldt 6 km. s. Alton (e. of Redwood Hwy.) 20 Comment
  UC490558  Salix melanopsis Joseph P. Tracy 1932-5-10 9960 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  CAS-BOT-BC129128  Salix scouleriana A. T. Whittemore 1979-4-5 79 -012 Humboldt Arcata, cleared field along Alliance Road immediately north of Arcata High School 6 Comment
  CAS-BOT-BC129132  Salix scouleriana Harold E. Parks 1931-5-12 955 a Humboldt Samoa, Humboldt Bay, near sea level Comment
  UC1173625  Salix scouleriana Joseph P. Tracy 1937-3-21 15238 Humboldt near Grizzly Creek Van Duzen R. 91 Comment
  UC1196694  Salix scouleriana Joseph P. Tracy 1932-10-12 10876 Humboldt along S. Fork Eel R. Miranda; Northern Coast Ranges, S. Fork Eel R., Miranda 91 Comment
  UC1196697  Salix scouleriana Joseph P. Tracy 1923-1-7 6135 Humboldt near Ferndale Ferndale; Northern Coast Ranges 15 Comment
  UC1196699  Salix scouleriana Joseph P. Tracy 1919-9-14 5204 Humboldt Trinity R. Valley near Willow Creek; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC490505  Salix scouleriana Joseph P. Tracy 1932-8-11 10338 Humboldt Bridgeville Northern Coast Ranges, Bridgeville 228 Comment
  UC490530  Salix scouleriana Joseph P. Tracy 1932-7-13 10507 Humboldt open groung at Corral Prairie (back from the meadows); Klamath Mts., Trinity Summit, Corral Prairie 1524 Comment
  UC519354  Salix scouleriana Joseph P. Tracy 1933-7-11 12706 Humboldt Grouse Mt.; North Coast Ranges, Grouse Mt. 1524 Comment
  CAS-BOT-BC128995  Salix sitchensis Joseph P. Tracy 1933-7-16 12773 Humboldt South Fork Mountain: in wet meadow at McKay Camp 1676 Comment
  HSC38182  Salix sitchensis Thomas W. Nelson 1976-11-5 3297 Humboldt Along S fork of Martins Slough, upstream from Eureka Muni Golf Course Comment
  HSC90385  Salix sitchensis Jean Hanson 1980-4-12 50 Humboldt Indian (Gunther) Island, Humboldt Bay, W end of island Comment
  UC1196712  Salix sitchensis Joseph P. Tracy 1935-3-3 13716 Humboldt near mouth Mad R. 6 Comment
  UC1196723  Salix sitchensis Joseph P. Tracy 1926-2-21 7361 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC1222295  Salix sitchensis Joseph P. Tracy 1950-9-10 19365 Humboldt along coast rd. 1 mi. inland from Cape Mendocino (1/2 mi. s. of town); Foothills of Cape Ridge 60 Comment
  UC1225919  Salix sitchensis Joseph P. Tracy 1942-7-26 17295 Humboldt near the Redwood House S. Yager Creek 609 Comment
  UC1280856  Salix sitchensis H. E. McMinn 1934-6-22 3707 Humboldt Sea Cliff n. of Eureka Comment
  UC303029  Salix sitchensis Joseph P. Tracy 1926-2-21 7358 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC490492  Salix sitchensis Joseph P. Tracy 1932-8-27 10749 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC490585  Salix tracyi Joseph P. Tracy 1932-4-24 9803 Humboldt South Fork of Eel River, between Miranda and Redway 91 Comment
  HSC100412  Sambucus racemosa Carl C. Marshall Apr 1886 164 Humboldt Near Humboldt Bay. Comment
  HSC22838  Sambucus racemosa var. racemosa C. D. Hunter 1964-4-12 Humboldt 3 mi. S of Big Lagoon along Hwy. 101 Comment
  HSC3966  Sambucus racemosa var. racemosa Harvey Doerksen 1962-5-4 7 Humboldt 0.25 mi. W of Korbel, S side of Mad River. Comment
  UC28611  Sambucus racemosa var. racemosa J. P. Tracy 1899-5-1 296 Humboldt Eureka Comment
  CAS-BOT-BC157200  Sanguisorba officinalis L. B. Kildale 1930-7-11 10208 Humboldt Snow Camp head of Redwood Creek Comment
  UC154105  Sanicula arctopoides J. P. Tracy 1901-4-14 1018 Humboldt opposite Eureka (Ocean Beach at Samoa); Samoa, Ocean Beach Comment
  HSC21630  Sanicula crassicaulis J. W. Johnson 1962-4-18 1260 Humboldt Arcata, between the Mad River mouth and the Hunt Farm, Samoa Peninsula. Comment
  RSA254743  Sanicula crassicaulis Thomas W. Nelson, James Nelson 1973-5-28 943 Humboldt McKeown Ranch north of Dinsmore. Comment
  UC642282  Sanicula crassicaulis Joseph P. Tracy 1927-5-8 7968 Humboldt Phillipsville, South Fork Eel River South Fork Eel River; Phillipsville, South Fork Eel River 121 Comment
  UC1022528  Sanicula crassicaulis C. Ritchie Bell 1952-5-14 3 X456 Humboldt Patrick Point State Park Comment
  HSC56174  Sanicula graveolens G. L. Clifton, Terry Griswold 1979-8-1 12078 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  JEPS995  Sanicula laciniata Joseph P. Tracy 1925-3-29 6950 Humboldt Miranda, along South Fork of Eel River South Fork Eel River; Northern Coast Ranges, Miranda, South Fork Eel River 91 Comment
  UC154130  Sanicula laciniata J. P. Tracy 1903-5-23 1897 Humboldt at Alder Point Alder Point 243 Comment
  HSC100693  Sanicula menziesii Carl C. Marshall Jun 1887 477 Humboldt Harris. Comment
  HSC70234  Sanicula tuberosa M. A. Baker 1980-6-8 1896 Humboldt Near Buck Flat. 1554 Comment
  HSC74271  Sanicula tuberosa M. A. Baker 1980-5-23 1378 Humboldt Near Buck Mtn. 1524 Comment
  HSC101026  Sanicula tuberosa Jenny Moore 2007-6-14 29 Humboldt Pilot Creek Watershed, west of South Fork Mountain, Dan East Trail (5E14). 976 Comment
  HSC21645  Sanicula tuberosa F. Morrell 1949-5-15 Humboldt Berry Summit Comment
  UC1601285  Satureja douglasii Joseph P. Tracy 1923-6-20 6315 Humboldt White Thorn Valley 304 Comment
  UC492224  Saxifraga californica Joseph P. Tracy 1927-4-10 7896 Humboldt near the South Fork (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  UC492230  Saxifraga marshallii Joseph P. Tracy 1927-5-13 7997 Humboldt Willow Creek Canyon,at mouth of East Fork of Willow Creek Willow Creek Canyon; Northern Coast Ranges, , Willow Creek 457 Comment
  UC183569  Saxifraga nidifica var. nidifica Joseph P. Tracy 1913-6-17 4178 Humboldt near summit of Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  HSC96371  Schoenoplectus mucronatus Gordon Leppig 2004-9-1 2196 Humboldt Eel River at Holmes Flat 400 Comment
  HSC7477  Schoenoplectus tabernaemontani J. P. Tracy, H. E. Parks 1931-5-17 9421 Humboldt Lack Pond, in Trinity River Valley opposite Willow Creek 152 Comment
  UC668018  Scirpus acutus var. occidentalis Joseph P. Tracy 1934-7-20 13472 Humboldt Big Lagoon 3 Comment
  CAS-BOT-BC84074  Scirpus criniger H. N. Bolander 1867-6-1 6475 Humboldt Red Mts. Comment
  CDA18245  Scirpus microcarpus G. D. Barbe, T. C. Fuller 1974-6-19 1883 Humboldt North Coast Ranges; Arcata, US Hwy 101 at Saint Louis Rd. 12 Comment
  HSC40102  Scirpus microcarpus Thomas W. Nelson, James Nelson 1976-7-28 3048 Humboldt Alder Springs Campground along 2S08 1555 Comment
  HSC7464  Scirpus microcarpus Paul Shields 1955-9-23 Humboldt 5 mi. SE of Arcata Comment
  UC1100832  Scirpus microcarpus Malcolm A. Nobs, S. Galen Smith 1949-8-3 1198 Humboldt marsh and bog land at the southern outskirts Eureka; southern outskirts Eureka Comment
  CHSC2305  Scoliopus bigelovii V. Holt 1933-4-10 Humboldt Comment
  RSA183587  Scoliopus bigelovii R. D. Zortman 1963-3-16 13 Humboldt 5 miles northeast of Arcata; south of the Mad River, off Warren Creek Road. 91 Comment
  CAS-BOT-BC517417  Scoliopus bigelovii Alice Eastwood; John Thomas Howell 1937-6-23 4778 Humboldt Near Dinsmores Comment
  HSC66221  Scoliopus bigelovii N. J. Miller 1977-3-5 1 Humboldt Camp Bauer Park, 100 yds. E of baseball field, 0.25 mi. NE of Korbel 58 Comment
  SEINET12050518  Scoliopus bigelovii F. H. Utech 1988-1 88 -024 Humboldt 1.5 mi WNW of Weott on Ave of the Giants (alt US 101), W.D. & W.H. Clark Redwood Grove 40 Comment
  HSC21128  Scrophularia californica C. B. Wolf 1927-8-29 1207 Humboldt Devil's Gate, S of Cape Mendocino. Comment
  HSC91946  Scrophularia californica E. Mackey 1986-5-13 Humboldt Patrick's Point State Park, edge of coastal stand Comment
  RSA167233  Scrophularia californica var. californica Joseph P. Tracy 1950-6-8 18752 Humboldt Beach south of Cape Mendocino. Comment
  JEPS62913  Scutellaria antirrhinoides Lincoln Constance 1934-5-23 614 Humboldt upper end of Look Prairie (South Fork Eel River); Bull Creek Region, , Look Prairie 365 Comment
  UCD125670  Scutellaria antirrhinoides K. Esau 1934-5-7 s.n. Humboldt Above Fort Seward. 457 Comment
  UC1488731  Sedum laxum Marc Baker 1980-7-11 2769 Humboldt near Red Mountain; Blocksburg Quad., near Red Mountain 230 Comment
  HSC76353  Sedum laxum subsp. heckneri Teresa Prendusi 1981-7-24 506 Humboldt Near Whiteys Peak 1634 Comment
  CAS-BOT-BC59127  Sedum spathulifolium Henry M. Pollard 1948-7-28 s.n. Humboldt River road near Orleans Comment
  RSA0081474  Sedum spathulifolium C. B. Wolf 1939-7-8 3414 Humboldt North bank of Matolle River, 2 miles above Petrolia. 61 Comment
  SEINET12218775  Sedum spathulifolium J. P. Tracy 1950-1 18715 Humboldt Wildcat Road, 2 mi S of Ferndale 305 Comment
  UC503073  Selaginella oregana Joseph P. Tracy 1928-4-29 8426 Humboldt Prairie Creek; Northern Coast Ranges 152 Comment
  JEPS307  Selaginella oregana Joseph P. Tracy 1928-8-29 8426 Humboldt Prairie Creek; Northern Coast Ranges 152 Comment
  CAS-BOT-BC69737  Selaginella wallacei Joseph P. Tracy 1932-3-20 9783 Humboldt Trinidad. 60 Comment
  UCR123957  Senecio bolanderi George K. Helmkamp, E. A. Helmkamp 2001-7-8 6974 Humboldt North Coast, CA Hwy 36, along the Van Duzen River, 19.6 mi east of CA Hwy 101, west of Bar W Road 137 Comment
  CAS-BOT-BC364020  Senecio integerrimus var. major Doris K. Kildale 1928-5-27 5957 Humboldt Kneeland Prairie 853 Comment
  HSC57618  Senecio integerrimus var. major G. L. Clifton, Griswold 1979-7-25 10743 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  UC1223149  Senecio integerrimus var. major Joseph P. Tracy 1946-5-19 17537 Humboldt near Ashland Butte; Kneeland Prairie 762 Comment
  UC581694  Senecio minimus Joseph P. Tracy 1936-7-26 15052 Humboldt w of Redwood Creek; Trinity Highway, Bald Mt. Ridge 670 Comment
  UC450005  Senecio sylvaticus Joseph P. Tracy 1918-9-1 5095 Humboldt Nowella Camp, on old Kneeland Prairie Road 457 Comment
  HSC63881  Senecio triangularis M. A. Baker 1979-6-27 923 Humboldt Edge of Hoopa Indian Reservation Comment
  HSC26310  Senecio vulgaris Thomas W. Nelson 1971-4-16 384 Humboldt Near Samoa coast Guard Station. Comment
  HSC67893  Senecio vulgaris J. P. Smith 1973-5-26 6840 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC12561  Senecio vulgaris D. La Conte 1970-11-7 10 Humboldt Comment
  HSC6132  Senecio vulgaris Frances Oldridge 1945-1 Humboldt College Hill Comment
  CAS-BOT-BC85842  Sequoia sempervirens Joseph P. Tracy 1935-12-8 14764 Humboldt Near Korbel 304 Comment
  CHSC61945  Sequoia sempervirens J. R. Biddison 1993-4-6 10 Humboldt Prairie Creek Redwoods State Park, Fern Canyon picnic area, 10 mi n of Orick, off hwy 101. 15 Comment
  POM182755  Sequoia sempervirens A. L. Bolton 1904-11-12 s.n. Humboldt Willits Comment
  SEINET11739295  Sequoia sempervirens R. J. Mastrogiuseppe 1966-1 s.n. Humboldt Founders' Grove, Humboldt Redwoods State Park Comment
  CDA13777  Setaria parviflora P. Haggard 1997-12-12 s.n. Humboldt North Coast Ranges; East of Arcata on North Bank Rd. above Mad River immed. E of Azalea Reserve. Stand approx. 25' in length, growing in recently disturbed area. Perennial. 0 Comment
  UC1222508  Sidalcea diploscypha Joseph P. Tracy 1950-6-23 18871 Humboldt 3 mi ne Alderpoint (Dobbyn Creek); , ne of Alderpoint 213 Comment
  HSC96276  Sidalcea malachroides Gordon Leppig 2002-5-22 1713 Humboldt Van Duzen River Watershed, Redwood House Rd. PALCO timberlands. 700 Comment
  SD73190  Sidalcea malachroides Darley F. Howe 1969-6-4 4626 Humboldt 14.6 miles east of Alton on Highway 36. 299 Comment
  HSC69889  Sidalcea malviflora subsp. nana Thomas W. Nelson, Jane Nelson 1977-7-30 3663 Humboldt Beside State Rte. 36, 1 mi. E of Dinsmore. 732 Comment
  POM264602  Sidalcea malviflora subsp. patula H. E. Parks 1940-05 24177 Humboldt Dow s Prairie 30 Comment
  UC902193  Sidalcea malviflora subsp. patula Joseph P. Tracy 1946-5-30 17546 Humboldt 5 mi e Carlotta (open flat by old Strong's District School House); e of Carlotta 60 Comment
  CAS-BOT-BC5794  Sidalcea oregana subsp. eximia Joseph Prince Tracy 1907-6-25 2578 Humboldt In valley of Elk River, region about Humboldt Bay 152 Comment
  HSC22032  Silene Richard Spjut 1971-5-8 1875 Humboldt 1 mi. up Friday Ridge Rd., 3 mi. E of Willow Creek Comment
  RSA185758  Silene californica John H. Thomas 1949-6-14 924 Humboldt Salmon River Valley near its junction with Klamath River. Comment
  SEINET6905325  Silene californica Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt About 4 miles southeast of Kneeland. Comment
  UC1541414  Silene californica H. E. and S. T. Parks June 1928 258 Humboldt Longvale 182 Comment
  JEPS23250  Silene campanulata Joseph P. Tracy 1932-7-18 10704 Humboldt head of Brett Hole , head of Brett Hole (Trinity Summit) 1828 Comment
  UC668096  Silene campanulata Joseph P. Tracy 1937-7-29 15591 Humboldt w slope near top South Fork Mountain (at Hyampom Trail); , at Hyampom Trail 1676 Comment
  HSC57065  Silene douglasii Overton, Butler 1979-7-24 9735 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  RSA46893  Silene gallica Doris K. Kildale 1927-5-15 3166 Humboldt Cape Mendocino Comment
  UCD98626  Silene gallica Linda M. Barker 1976-6-14 1593 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC43853  Silene laciniata subsp. californica Maralyn O'Meara 1974-7-17 551 Humboldt Kneeland Comment
  HSC48789  Silene laciniata subsp. californica Brad Klipfel 1975-6-17 666 Humboldt Along Titlow Hill Rd. Comment
  UC161035  Silene scouleri subsp. grandis Joseph P. Tracy Sept. 1904 2141 Humboldt bluff back Bucksport (at Eureka); Northern Coast Region, at Eureka 0 Comment
  RSA366962  Sisyrinchium bellum Bonnie C. Templeton 1964-6-13 10183 Humboldt Near old Highway 101 to Trinidad Comment
  RSA46494  Solanum americanum Doris K. Kildale 1926-2-7 1496 Humboldt Big Lagoon. Comment
  UC673109  Solanum americanum Joseph P. Tracy 1940-10-17 16767 Humboldt 2 - 5 mi e of the South Fork (along Eel River, Camp Grant); Eel River, Camp Grant 45 Comment
  JEPS12167  Solanum umbelliferum Joseph P. Tracy 1937-5-30 15316 Humboldt Bridgeville 198 Comment
  JEPS12169  Solanum umbelliferum Lincoln Constance 1934-6-2 788 Humboldt Bull Creek Region, South Fork Eel River, Bull Creek road to mouth of Bull Creek, and up Bull Creek South Fork Eel River; Bull Creek Region, , Bull Creek Comment
  RSA47125  Solidago canadensis subsp. elongata Doris K. Kildale 1928-8-17 1211 Humboldt Trinity Summit 1829 Comment
  CAS-BOT-BC365442  Solidago elongata Ira L. Wiggins 1932-7-25 5895 Humboldt Roadsides near McKinleyville Comment
  UC205162  Solidago elongata Joseph P. Tracy 1919-9-22 5260 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1889 Comment
  BLMAR109  Solidago spathulata Jennifer Anthony-Wheeler 1994-9-8 109 Humboldt Samoa/manilla dunes, growing in every dune mat area in the samoa rare plant protection area 12 Comment
  BLMAR705  Solidago spathulata Jennifer Anthony-Wheeler 1994-9-8 705 Humboldt Samoa/manilla dunes, growing in every dune mat area in the samoa rare plant protection area 12 Comment
  HSC6200  Solidago spathulata D. K. Smith 1968-11-9 61 Humboldt Mad River Rd. Comment
  UC1199319  Solidago spathulata J. P. Tracy 1900-7-4 885 Humboldt opposite Eureka (Samoa); Samoa Comment
  CAS-BOT-BC364968  Solidago velutina subsp. californica Joseph P. Tracy 1937-9-5 15682 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  CHSC52926  Soliva sessilis L. P. Janeway; Ken Berg 1984-4-11 721 Humboldt On the North Spit of Humboldt Bay; at the turnout along Samoa Rd across from the boat ramp just north of he Coast Guard Sta. 3 Comment
  UC166083  Soliva sessilis J. P. Tracy 1901-5-5 1069 Humboldt immediate vicinity Eureka 0 Comment
  HSC47627  Soliva sessilis J. P. Smith 1977-4-23 9019 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground. 561 Comment
  CHSC10128  Sonchus asper J. W. Johnson 1961-6-12 1410 Humboldt Samoa Peninsula. On a dune tongue between the foredunes, at Foredune 39. Comment
  UC582434  Sonchus asper Joseph P. Tracy 1932-5-22 10115 Humboldt between Miranda and Redway; North Coast Ranges, South Fork Eel River 91 Comment
  UCD136156  Sonchus oleraceus Linda M. Barker 1976-6-1 1546 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC526834  Sorghum halepense Joseph P. Tracy 1925-9-6 7263 Humboldt near the S. Fork Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 182 Comment
  UC198647  Sparganium emersum var. emersum Joseph P. Tracy 1917-5-30 4808 Humboldt near mouth of Little River; Northern Coast Ranges 6 Comment
  UC672884  Sparganium emersum var. emersum Joseph P. Tracy 1934-7-30 13507 Humboldt in front of s end Stone Lagoon (Dry Lagoon); Dry Lagoon 3 Comment
  CDA26356  Spartina densiflora G. D. Barbe, T. C. Fuller 1989-6-7 4320 Humboldt Tidal flat 0.4 miles north of Highway 255 bridge, at New Naval Base Road. 0 Comment
  OBI36628  Spartina densiflora David J. Keil 1983-7-2 17296 Humboldt Humboldt Bay salt marsh at Arcata Corp Yard Comment
  CDA19921  Spartium junceum R. Spadoni 2002-6-26 PDR P 070828 Humboldt Northern California; Vicinity of Garberville. 0 Comment
  HSC79184  Spergula arvensis L. P. Janeway 1984-2-6 711 Humboldt .25 mi. up Hidden Creek Rd. from LK Wood Blvd. 46 Comment
  HSC37994  Spergularia macrotheca Peter Sorensen 1976-6-19 Humboldt Woodley Island Comment
  OBI36625  Spergularia macrotheca David J. Keil 1983-7-2 17302 Humboldt Humboldt Bay salt marsh at Arcata Corp Yard Comment
  CAS-BOT-BC149617  Spiraea douglasii Milo S. Baker 1927-8-21 2484 b Humboldt [Spagnum] Sphagnum Bog near Bald Mt. 914 Comment
  RSA472777  Spiraea douglasii T. Gertrude Williamson 1924-7-12 s.n. Humboldt Arcata. Comment
  UC668214  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-17 15969 Humboldt near Panther Gap (on road between Bull Creek to Mattole) 822 Comment
  UCLA71172  Stachys ajugoides var. rigida C. Epling, Wm. Robison 1935-7-22 Humboldt Patrick's Point Comment
  HSC100512  Stachys bullata Carl C. Marshall May 1885 77 Humboldt Thickets, roadsides, etc. Comment
  HSC57939  Stachys rigida var. rigida G. L. Clifton, Griswold 1979-7-31 11606 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  CAS-BOT-BC175348  Stellaria borealis subsp. sitchana Malcom A. Nobs; S. Galen Smith 1949-8-9 1245 Humboldt Clam Beach Comment
  HSC70500  Stenanthium occidentale Gail Newton 1980-7-20 1618 Humboldt Near Bell Swamps 1426 Comment
  HSC103125  Stenanthium occidentale M. Mesler, Robin Bencie 2009-7-7 808 Humboldt Big Hill Rd, near Domingo Creek. 1367 Comment
  UC204697  Stephanomeria elata Joseph P. Tracy 1918-7-7 5037 Humboldt Garberville Northern Coast Ranges 152 Comment
  HSC6235  Stephanomeria exigua Richard Spjut 1968-11-2 256 Humboldt On the SW slope of Chaparral Mtn. 915 Comment
  HSC6230  Stephanomeria virgata John Warner Hosking 1968-10-10 Humboldt Hwy. 299, 30 mi. W of Willow Creek Comment
  HSC73477  Stipa lemmonii Gail Newton 1980-7-11 1337 Humboldt Near Red Mtn. 1341 Comment
  HSC58416  Stipa occidentalis var. californica Griswold, Butler 1979-7-12 7217 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  CAS-BOT-BC87608  Streptanthus tortuosus Doris K. Kildale 1928-5-27 5955 Humboldt Kneeland Prairie. 853 Comment
  HSC70806  Streptanthus tortuosus Gail Newton 1980-7-24 1787 Humboldt Near Somes Mtn. 1615 Comment
  UC673071  Streptanthus tortuosus Joseph P. Tracy 1940-7-7 16667 Humboldt rocky banks Grouse Mt. 1463 Comment
  UCD84700  Streptanthus tortuosus Robert E. Preston 2009-5-27 2681 Humboldt 5.9 mi S of Weitchpec, along Hwy 96. 188 Comment
  HSC103406  Streptanthus tortuosus var. orbiculatus Eric Schori, Kazuyuki Ishimaru 2005-6-24 14 Humboldt Along Titlow Hill Road south of Hwy. 299, past Buck Flat. 1375 Comment
  HSC99097  Streptanthus tortuosus var. orbiculatus Cara Witte 2007-5-31 152 Humboldt Along National Forest Rte. 1, near Kinsey Ridge, 1.5 miles north of intersection with 4N09 1299 Comment
  HSC58336  Streptopus amplexifolius Overton, Butler 1979-8-2 12644 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  RSA520556  Streptopus amplexifolius Michael A. Hanson 1990-5-21 72 Humboldt On Little Creek Trail in Redwood National Park; east side of Highway 101 approximately 7 miles (11.3 km) south of Klamath Comment
  UC1197806  Streptopus amplexifolius var. americanus Joseph P. Tracy 1934-7-12 13375 Humboldt Big Lagoon 30 Comment
  HSC3999  Symphoricarpos albus var. laevigatus J. E. Lankila 1962-5-14 18 Humboldt W bank of Eel River across from Shively abour 500 ft. N of Bear Creek. Comment
  HSC40856  Symphoricarpos mollis Thomas W. Nelson 1976-7-9 2991 Humboldt Along ridge S of E peak of Mtn. Lassic group, (Signal Pk.). 1707 Comment
  HSC58791  Symphyotrichum bracteolatum Overton, Butler 1979-7-31 11427 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  RSA417726  Symphyotrichum foliaceum var. foliaceum E. S. Spalding 1924-7-11 s.n. Humboldt Between Trinidad and Arcata Comment
  CDA5590  Symphytum asperum T. C. Fuller 1961-9-28 7047 Humboldt Iverson property, Arcata Bottoms, 0.5 mile south of the Mad River, 0.75 mile west of Highway 101, 2 miles north of Arcata. 0 Comment
  SEINET11116061  Symphytum asperum Unknown 1968-1 2120 Humboldt Plants of California HUMBOLDT CO.: approx. 2 miles east of Hwy. jct. U.S. 101 & Tompkins Hill Road, on Tompkins Hill Road, south of Eureka. Elevation approx. 100 feet. Comment
  UCD120749  Symphytum uplandicum T. C. Fuller 1961-9-28 7047 Humboldt Iverson prop., Arcata Bottoms, 0.5 mi. s. of the Mad River, 0.75 mi. w. of Hwy 101, 2 mi. n. of Arcata. Comment
  UC168958  Synthyris reniformis Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 5749 Humboldt Trinity Summit; North Coast Ranges Comment
  UCD124640  Synthyris reniformis D. C. Hagar 1957-6-20 145 -a Humboldt Cedar Creek Divide, 5.5 miles east of Willow Creek. 1066 Comment
  HSC78985  Tanacetum bipinnatum L. P. Janeway 1984-5-16 801 Humboldt N Spit of Humboldt Bay, on the W side of Samoa Road ca. 1/4 mi. NW of the boat ramp 5 Comment
  UC1302426  Tanacetum camphoratum Philip A. Munz 1963-6-13 24524 Humboldt Samoa Comment
  CDA8898  Tanacetum camphoratum Clayton 1956-5-7 Humboldt Samoa Road 200 yards south of Fairhaven. 0 Comment
  POM289716  Tanacetum douglasii Lyman Benson 1928-7-10 452 Humboldt Clam Beach, Trinidad. 15 Comment
  RSA246918  Tanacetum douglasii R. F. Thorne, Percy C. Everett 1965-8-5 35167 Humboldt Samoa Dunes. 3 Comment
  CAS-BOT-BC376895  Taraxacum officinale Doris K. Kildale 1926-5-24 1683 Humboldt Ryan Slough near Occidental Ranch Comment
  CAS-BOT-BC376896  Taraxacum officinale Harold E. Parks; Joseph P. Tracy 1949-6-25 11671 Humboldt Trinity Summit 1524 Comment
  UC1223144  Taraxacum officinale Joseph P. Tracy 1949-6-6 18301 Humboldt 1.5 mi n Forest Service Public Camp (Trinity Summit Road); Happy Camp Mountain 1219 Comment
  UC1239514  Taraxacum officinale J. P. Tracy 1901-1-13 984 Humboldt immediate vicinity Eureka 0 Comment
  HSC45931  Taxus brevifolia Jerome Peterson 1978-4-29 9 Humboldt Along bank of Redcap Creek 1.0 mi. down Millgap Rd. from Redcap Rd. Comment
  HSC74647  Taxus brevifolia M. A. Baker 1980-5-17 1214 Humboldt Near Le Perron Peak 792 Comment
  POM319590  Taxus brevifolia Patricia Wilder 1968-8-22 4428 Humboldt Bull Creek Flat, Humboldt Redwood State Park, north of Weott and west of U. S. 101. Coast Mountain range, south fork of Eel River. 61 Comment
  UC667973  Taxus brevifolia Joseph P. Tracy 1936-9-20 15186 Humboldt along Capoe Creek; Humboldt State Redwood Park 91 Comment
  HSC20433  Tellima grandiflora Elrid H. Spinas 1948-6-16 63 Humboldt Horse Mtn. Comment
  HSC75801  Tellima grandiflora Bill Copeland 1980-7-2 355 Humboldt Near Snow Camp Creek 1311 Comment
  UC161580  Tellima grandiflora Joseph P. Tracy 1911-6-4 3214 Humboldt 5 mi from coast Little River; Northern Coast Region 121 Comment
  CAS-BOT-BC447401  Tellima grandiflora H. D. Ripley; R. C. Barneby 1945-6-16 6824 Humboldt North of Harris Comment
  HSC89548  Tellima grandiflora M. Roantree 1985-5-2 30 Humboldt E side of Trinidad Head. Comment
  UCD96769  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1948-6-13 18037 Humboldt Larrabee Creek, 7 miles NW of Blocksburg. 304 Comment
  CAS-BOT-BC77704  Thelypteris Joseph P. Tracy 1937-7-25 15556 Humboldt Happy Camp Mountain (In Trinity Summit Range, northeast of Hawkins Bar.) 1280 Comment
  UC1299171  Thermopsis macrophylla var. macrophylla Freed W. Hoffman 1950-7-11 3643 Humboldt Cedar Camp Road 9.5 mi n Klamath River; North Coast Ranges Comment
  CAS-BOT-BC81317  Thuja plicata Doris K. Kildale 1927-2-20 2961 Humboldt Lord-Ellis road, east of Blue Lake Comment
  POM160766  Thuja plicata Joseph P. Tracy 1920-9-19 5401 Humboldt North fork of Mad River. 305 Comment
Read comments
Jul 25 2018
  UC63991  Thuja plicata Mrs. M. H. Manning 1901-10-1 Humboldt Comment
  UCD67632  Thuja plicata D. Sanchez-Mata 1996-6-27 s.n. Humboldt Blue Lake. Mad River. Redwood forests on slopes. 175 Comment
  UC1198814  Thysanocarpus curvipes Joseph P. Tracy 1939-4-29 16242 Humboldt Klamath River at mouth of Slate Creek; Klamath River at mouth of Slate Creek 121 Comment
  UC1198819  Thysanocarpus curvipes Joseph P. Tracy 1933-5-18 12188 Humboldt near Blue Lake (along Mad River); , near Blue Lake 15 Comment
  CAS-BOT-BC88326  Thysanocarpus curvipes Joseph P. Tracy 1938-5-1 15736 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  HSC98805  Tiarella trifoliata var. unifoliata Cara Witte 2008-8-5 994 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles E of intersection with National Forest 1. 1346 Comment
  UC1409074  Tiarella trifoliata var. unifoliata Robert F. Thorne and P. Everett 1965-8-5 35140 Humboldt below summit Mt. Chamisal Mt. Chamisal; , below summit 533 Comment
  HSC98858  Tiarella trifoliata var. unifoliata Cara Witte 2008-7-30 976 Humboldt Forest Service Road 5N04. 1/4 mile east of intersection with Forest Service Road 4N70. 1583 Comment
  RSA246663  Tiarella trifoliata var. unifoliata R. F. Thorne, Percy C. Everett 1965-8-4 35127 -b Humboldt Wailaki Recreation site. 518 Comment
  HSC56107  Tolmiea diplomenziesii G. L. Clifton 1979-7-31 11858 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC1198896  Tolmiea diplomenziesii Joseph P. Tracy 1925-11-25 7328 Humboldt near The South Fork (Trinity River Valley); Northern Coast Ranges 182 Comment
  UC169326  Tonella tenella Joseph Burtt Davy and Walter C. Blasdale 1899-6-10 5388 Humboldt near Hubbard's Station; North Coast Ranges Comment
  UCR45380  Tonella tenella Barry Silver 1986-4-23 518 Humboldt North Coast Range, Bair Road, 9.5-10 mi NW of the junction with Hwy 299; Pine Ridge Summit Area 997 Comment
  HSC45466  Torilis arvensis Thomas W. Nelson, Jane P. Nelson 1978-7-2 4387 Humboldt Along Hwy. 36 1 mi. E of Grizzly Creek Comment
  HSC74725  Torilis arvensis Gail Newton 1981-8-6 2411 Humboldt Near Mad River. 1308 Comment
  SD148260  Torilis arvensis G. K. Helmkamp, E. A. Helmkamp 2001-7-8 6986 Humboldt North coast redwood area; California Highway 36, along the Van Duzen River, 19.6 miles east of U. S. 101. 136 Comment
  HSC79551  Torilis arvensis Kenneth Clark 1980-6-14 668 Humboldt On western slope above Dead Man's Gulch. 152 Comment
  HSC97966  Torilis arvensis Cara Witte 2007-7-2 393 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1406 Comment
  UCD93212  Torreyochloa pallida var. pauciflora A. H. Murphy 1951-6-25 69 Humboldt Snow Camp Meadows, ca. 8 miles E. NE of Kneeland. Comment
  CAS-BOT-BC169174  Toxicodendron diversilobum Alice Eastwood; John Thomas Howell 1937-6-22 4712 Humboldt Near Harris Comment
  HSC49820  Toxicodendron diversilobum R. York 1979-4-21 244 Humboldt Behind the town of Korbel, Camp Bauer Comment
  HSC89478  Toxicodendron diversilobum P. A. Daly 1986-3-12 81 Humboldt Trinidad Head 61 Comment
  SEINET10953093 Image available Tracyina rostrata Joseph P. Tracy 1916-6-20 Tracy 4735 Humboldt Alder Point, on warm grassy slopes. 305 Comment
  JEPS5769  Trautvetteria caroliniensis var. occidentalis Joseph P. Tracy 1937-7-25 15564 Humboldt ne of Hawkins Bar (in Trinity Summit Range, Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  HSC58100  Triantha occidentalis subsp. occidentalis G. L. Clifton, Griswold 1979-8-1 12030 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  UC1137622  Trichostema laxum R. Stahelin 1933-8-20 Humboldt Korbel, above Camp 8 Comment
  RSA183505  Trientalis latifolia D. E. Anderson 1965-5-8 3651 Humboldt 3 miles N of Willow Creek along road on E side of Trinity River. Comment
  HSC28131  Trientalis latifolia J. D. Ackerman 1973-5-6 44 Humboldt 3 mi. N of Weott Comment
  RSA460855  Trientalis latifolia W. Hutchinson 1927-05 s.n. Humboldt [Unspecified] Comment
  UC1197234  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1922-4-30 6021 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1223394  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1943-5-9 17420 Humboldt on Trinity River (Willow Creek) Comment
  CHSC84526  Trifolium arvense John Dittes; Josephine Guardino 2003-6-7 2003 -65 Humboldt Klamath Range; ca. 7.7 air-mile southwest of Orleans, ca. 4.1 air-miles northeast of confluence of Trinity River and Klamath River, ca. 0.3, air-mile northwest of confluence of Klamath River and Aikens Creek. Along entrance road to Aikens Creek Campground. 106 Comment
  HSC100528  Trifolium bifidum Carl C. Marshall Jun 1885 33 Humboldt Bear River. Comment
  UC162801  Trifolium cyathiferum Joseph P. Tracy 1903-5-23 1902 Humboldt along Eel River (Alder Point); Northern Coast Ranges 91 Comment
  HSC73960  Trifolium dichotomum Gail Newton 1980-6-7 128 Humboldt Near Brush Mtn. 1128 Comment
  POM160884  Trifolium dichotomum Joseph P. Tracy 1925-5-30 7023 Humboldt Mcclellan Mountain. 823 Comment
  UCD109725  Trifolium dichotomum R. Tofsrud 1948-1 s.n. Humboldt Humboldt County. Comment
  HSC15116  Trifolium dubium Harvey Doerksen 1962-5-8 18 Humboldt 3 mi. W of Blue Lake, fork Mad River and Essex Creek Comment
  HSC45122  Trifolium dubium R. Sutherland 1978-5-12 1 .12578 Humboldt Mckee Flat 288 Comment
  RSA195478  Trifolium dubium C. R. Gunn 1963-6-2 2694 Humboldt Two miles SE of Arcata Comment
  UC16714 Image available Trifolium eriocephalum W. C. Blasdale 1896-6-8 Humboldt near Deer Creek; Mad River; Mad River near Deer Creek, Humboldt Co. Comment
  HSC99715  Trifolium eriocephalum subsp. eriocephalum Glenn W. K. Shelton 2010-7-19 25 Humboldt Big Hill Rd., switchback in road 1256 Comment
  UC1223460  Trifolium fragiferum Joseph P. Tracy 1933-8-22 12986 Humboldt 1 mi w Loleta Comment
  UC1223452  Trifolium howellii Joseph P. Tracy 1934-7-18 13449 Humboldt at top Grouse Mtn 1524 Comment
  RSA232726  Trifolium incarnatum Larry E. DeBuhr, Gary D. Wallace 1972-5-22 605 Humboldt Along Hwy. 299 west of Arcata. Comment
  SDSU5282  Trifolium incarnatum D. F. Howe 1969-6-3 4623 Humboldt 13 miles north of Orick on # 101. Comment
  UC495656  Trifolium longipes subsp. hansenii Joseph P. Tracy 1930-6-8 8726 Humboldt Northern Coast Ranges. Kneeland Prairie. 762 Comment
  HSC76223  Trifolium longipes subsp. oreganum Overton, Butler 1979-7-24 9763 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  HSC89906  Trifolium macraei Leonel Arguello 1989-6-10 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata. Just N of the Hutton-Fernstrom Root border. Comment
  UC1197237  Trifolium macraei Joseph P. Tracy 1901-5-18 1098 Humboldt Ocean Beach Northern Coast Ranges, Humboldt Bay Comment
  UC1197239  Trifolium macraei J. P. Tracy 1899-6-2 40 Humboldt vicinity Eureka (Bucksport) 0 Comment
  UC1197540  Trifolium microcephalum Joseph P. Tracy 1911-7-10 3495 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  UC1223348  Trifolium microdon Joseph P. Tracy 1950-6-18 18840 Humboldt 1 mi e Cape Mendocino (at roadside on top of ridge); Cape Ridge 304 Comment
  POM214882  Trifolium obtusiflorum Joseph P. Tracy 1932-5-22 10119 Humboldt South fork of Eel River, between Miranda and Redway. Comment
  UCSB30597  Trifolium pratense Edwards, David 1974-7-13 Humboldt North side of 7th St. just W. of its overpass of U.S. 101, Arcata 18 Comment
  UC1223320  Trifolium subterraneum Joseph P. Tracy 1951-6-21 19520 Humboldt in experimental garden of A. H. Nurphy on ranch of Everett Beck Hydesville Comment
  HSC45131  Trifolium variegatum R. Sutherland 1978-6-1 3 .1678 Humboldt 213 Comment
  HSC15172  Trifolium willdenovii D. E. Anderson 1962-5-1 2191 Humboldt Junction of Redwood Creek Rd. and rd. to Hoopa Comment
  UC1223316  Trifolium willdenovii Joseph P. Tracy 1942-6-12 17111 Humboldt along hwy (at head of lagoon); Big Lagoon Comment
  UCD109909  Trifolium wormskioldii Linda M. Barker 1976-6-1 1547 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC37965  Triglochin concinna Peter Sorensen 1976-6-16 Humboldt Woodley Island, Humboldt Bay Comment
  HSC14177  Triglochin maritima J. Mustain 1963-4-20 9 Humboldt Big Lagoon Park Comment
  HSC59120  Triglochin maritima Terry Roth 1979-4-28 18 Humboldt End of H St. in Arcata 0 Comment
  HSC15683  Trillium albidum D. E. Anderson 1965-5-1 3567 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  HSC100368  Trillium angustipetalum J. Moore 2007-5-17 1483 Humboldt Big Flat Campground. 488 Comment
Read comments
Jan 10 2018
  POM109201  Trillium ovatum Marcus E. Jones 1924-4-28 s.n. Humboldt Scotia. Comment
  SDSU11977  Trillium ovatum D. R. Harvey 1938-8-13 2253 Humboldt Redwood Park Comment
  UC1197828  Trillium ovatum Joseph P. Tracy 1913-3-9 4019 Humboldt near Hydesville Hydesville; Northern Coast Region 60 Comment
  HSC15694  Trillium ovatum V. G. Vieira 1963-3-10 37 Humboldt Essex Pond Comment
  SBBG1084  Trillium ovatum H. and M. Dearing 1933-5-15 269 Humboldt Humboldt County [no specific locality] Comment
  CAS-BOT-BC521312  Trillium rivale Joseph P. Tracy 1911-7-7 3413 Humboldt Brannan Mountain; Viz Ridge North of Willow Creek, between Willow and Campbell Creeks, near the summit, in pine forest; Northern Coast Ranges 1219 Comment
  SEINET3992212  Trillium sessile Unknown 1928-4-29 8418 Humboldt Prairie Creek 152 Comment
  UC198870  Triodanis biflora Chesnut and Drew 1888-7-9 Humboldt Kneeland Comment
  CHSC118618  Triphysaria eriantha subsp. eriantha Richard R. Halse 2016-3-24 9683 Humboldt Along U.S. Hwy. 101 ca. 9.5 miles south of Garberville, just north fo the Mendocino County Line. 168 Comment
  HSC49513  Triphysaria eriantha subsp. eriantha R. York 1979-4-16 231 Humboldt E of Samoa drag strip. Comment
  CHSC70841  Triphysaria eriantha subsp. rosea Vernon Oswald 1998-4-16 8916 Humboldt Samoa Boat Ramp County Park on the North Spit of Humboldt Bay. Growing along New Navy Base Rd. fronting the park. 6 Comment
  CHSC1822  Triphysaria versicolor subsp. faucibarbata V. Holt 1941-5-30 Humboldt Comment
  POM126097  Trisetum canescens Joseph P. Tracy 1903-5-22 1877 Humboldt Alder Point on Eel River, in woods. Comment
  UC33738  Trisetum canescens Joseph Burtt Davy and Walter C. Blasdale 1899-6-9 5369 Humboldt ridge near Harris Comment
  HSC13410  Trisetum canescens D. C. Juve 1964-5-16 45 Humboldt 1 mi. N of Tish-tang Ranger Station on Hwy. 96. Comment
  HSC13121  Trisetum cernuum R. H. Berg 1963-5-1 60 Humboldt Arcata, H.S.U. campus. Comment
  UCD93907  Trisetum cernuum R. Tofsrud 1949-7-1 s.n. Humboldt On road between Scotia and Capetown. Comment
  UCD93909  Trisetum cernuum Joseph P. Tracy 1939-4-25 16223 Humboldt Bull Creek. 60 Comment
  UC1197724  Triteleia bridgesii Joseph P. Tracy 1925-6-7 7066 Humboldt Willow Creek Canyon Northern Coast Ranges 457 Comment
  UC146193  Triteleia hyacinthina Joseph P. Tracy 1908-6 2805 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 304 Comment
  UC15023  Triteleia hyacinthina Harley P. Chandler May 1901 1246 Humboldt Redwood Belt North Coast Ranges 152 Comment
  RSA378030  Triteleia hyacinthina Hutchinson 1927-05 s.n. Humboldt [No locality information provided] Comment
  HSC39173  Triteleia laxa D. E. Anderson, J. P. Smith 1971-6-28 - 1229 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  UC666897  Triteleia laxa Joseph P. Tracy 1927-6-26 8223 Humboldt on hillsides near ocean; Stone Lagoon 30 Comment
  CAS-BOT-BC85891  Tsuga heterophylla C. B. Wolf 1930-10-25 1019 Humboldt Along the Blue Lake to Willow Creek road (Lord Ellis Road), 12 mi. above Blue Lake 304 Comment
  SEINET11737871  Tsuga heterophylla K. S. Erdman 1970-1 4798 Humboldt Cal-Barrow Rd, 3 mi E of US 101 at boundary of Prairie Creek State Park (Redwood National Park) Comment
  UC249701  Umbellularia californica Joseph P. Tracy 1921-2-27 5415 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  POM160273  Urtica dioica subsp. gracilis Joseph P. Tracy 1926-5-25 7516 Humboldt Around Humboldt Bay. Elk River Valley. 30 Comment
  SEINET200748  Urtica dioica subsp. gracilis Joseph P. Tracy 1927-3-6 7837 Humboldt Elk River. 30 Comment
  UC1222619  Urtica dioica subsp. holosericea Joseph P. Tracy 1950-9-22 19369 Humboldt 8 mi below Orleans (near Slate Creek, Klamath River); Klamath River 121 Comment
  HSC55151  Vaccinium cespitosum G. L. Clifton, Griswold 1979-8-1 12091 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC12435  Vaccinium ovatum Gary J. Stebbins 1970-2-21 10 Humboldt Patricks Point State Park 38 Comment
  POM257944  Vaccinium ovatum H. E. Parks, S. T. Parks 1937-04 5638 Humboldt Spruce Cove, Trinidad. Comment
  UCD166884  Vaccinium ovatum Colleen Rossier 2016-9-16 2 Humboldt Approximately 100 yards above Red Cap Road. Across from gravel entrance to old road, plot Red Cap #1. 264 Comment
  UCD166887  Vaccinium ovatum Colleen Rossier 2016-9-16 5 Humboldt In vicinity of Rosaleno Creek, plot Rosaleno #1. 601 Comment
  UCD166889  Vaccinium ovatum Colleen Rossier 2016-9-17 7 Humboldt In vicinity of Natuket Creek, plot Natuket #1. 702 Comment
  CAS-BOT-BC199422  Vaccinium parvifolium Elmer I. Applegate 1923-9-12 3993 Humboldt Above Trinidad Comment
  JEPS58705  Vaccinium parvifolium W. L. Jepson 1902-6-24 1926 Humboldt Korbel to Angel's Ranch Comment
  UC1197765  Vaccinium parvifolium Joseph P. Tracy 1922-5-21 6051 Humboldt Fieldbrook, Northern Coast Ranges 60 Comment
  UC203879  Vaccinium parvifolium Joseph P. Tracy 1918-4-21 4879 Humboldt Near Newell's old camp, Kneeland Prairie Road, around Humboldt Bay, Northern Coast Region 457 Comment
  UC198659  Valeriana sitchensis subsp. scouleri Ethel Tracy 1917-6-12 Humboldt along Eel River from South Fork to Scotia (Scotia Bluff); Northern Coast Ranges, Eel River 60 Comment
  HSC3380  Vancouveria hexandra J. F. Knezevich 1968-5-21 448 Humboldt 20 mi. E of Arcata on Hwy. 299 at Lord Ellis Summit Comment
  HSC3388  Vancouveria hexandra M. T. Milligan 1964-5-14 Humboldt 3 mi. N on Essex Ln. Comment
  HSC37695  Vancouveria hexandra J. D. Ackerman 1974-4-26 181 Humboldt .3 mi. up Jolly Giant Cr. from HSU, Arcata. Comment
  RSA12550  Vancouveria hexandra C. B. Wolf 1934-7-2 5888 Humboldt Snow Camp. (Mountains east of Korbel). 1372 Comment
  UC527825  Vancouveria hexandra Ira L. Wiggins 1932-6-12 5865 Humboldt 2 mi e Bayside (bank of Jacoby Creek); bank of Jacoby Creek Comment
  HSC3384  Vancouveria planipetala William J. Ferlatte, B. D. Rogers 1966-6-8 2089 Humboldt 2 mi. W of Forest Glen, Granite Canyon. Comment
  HSC72636  Vancouveria planipetala J. P. Smith 1977-7-3 9247 Humboldt Six Rivers National Forest, along the road to Onion Lake, just above Blue Lake 976 Comment
  UCD95099  Vancouveria planipetala R. N. Raynor 1934-5-7 s.n. Humboldt above Fort Seward. 609 Comment
  CDA39365  Veratrum californicum T. C. Fuller 1958-6-17 1713 Humboldt Mazepa Ranch, Wildcat Ridge. 0 Comment
  HSC65843  Veratrum insolitum Gail Newton 1980-6-16 184 Humboldt Near Onion Mtn. 1280 Comment
  UC1225852  Veratrum insolitum Joseph P. Tracy 1948-8-15 18120 Humboldt on Ridge 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  JEPS39084  Verbena lasiostachys var. lasiostachys Lincoln Constance 1934-5-26 660 Humboldt s end Dyerville Bridge; S Fork Eel River 45 Comment
  HSC59134  Veronica americana Terry Roth 1979-5-29 102 Humboldt Glendale exit off Hwy. 299, gravel road towards Mad River, near Mad River 30 Comment
  UC147877  Veronica scutellata J. P. Tracy 1901-6-30 1196 Humboldt immediate vicinity of Eureka 0 Comment
  HSC99373  Veronica serpyllifolia subsp. serpyllifolia K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 22 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC99443  Vicia americana subsp. americana K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 93 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC160967  Vicia americana var. americana Mrs. M. H. Manning May 1902 Humboldt Hupa Comment
  UC33398  Vicia americana var. americana W. C. Blasdale 1896-6-7 Humboldt Graham's Comment
  UCR84713  Vicia benghalensis Kathy Harper 1992-5-14 s.n. Humboldt Coast Range, Van Duzen River, c. 1.5 mi. west of Bridgeville on State Hwy 36 195 Comment
  HSC15266  Vicia gigantea S. R. Johnson 1965-3-28 21 Humboldt 1.5 mi. N of Luffenholtz Beach Comment
  UC162795  Vicia gigantea J. P. Tracy 1909-6-6 2986 Humboldt immediate vicinity of Eureka 0 Comment
  HSC90225  Vicia hirsuta L. Watson, J. Meninga Apr 1991 24 Humboldt Near Manilla, Mad River Slough and Dunes. N end of parking lot, W side of trail. Comment
  SEINET9302671  Vicia tetrasperma Unknown 1963-6-2 2693 Humboldt Scattered along roadside in a mixed evergreen forest. Two mi SE of Arcata on road to quarry. Comment
  HSC21775  Viola adunca Richard Spjut 1968-10-26 205 Humboldt Near boat launching area at Big Lagoon Comment
  HSC91932  Viola adunca E. Mackey 1986-5-13 Humboldt Patrick's Point State Park; Palmer's Point Comment
  UC1198417  Viola bakeri Joseph P. Tracy 1942-6-23 17257 Humboldt ridges near Water-dog Lakes; Trinity Summit 1828 Comment
  HSC65883  Viola cuneata M. A. Baker 1980-6-16 1945 Humboldt Near Onion Mtn. 1280 Comment
  HSC98620  Viola cuneata Cara Witte 2008-5-26 657 Humboldt National Forest 1. 1 mile north of intersection with Forest Service Road 5N10. 1457 Comment
  HSC102037  Viola glabella M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 940 Humboldt Forest edge surrounding Patterson Meadows 1566 Comment
  HSC48412  Viola glabella Brad Klipfel 1973-6-10 84 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC97583  Viola glabella Cara Witte 2007-5-23 100 Humboldt Near Grouse Mtn. Along 4N32. Approximately 0.5 mi. S of intersection with 5N04 and 4N32E. 1398 Comment
  JEPS50368  Viola glabella W. L. Jepson 1902-7-16 2057 Humboldt Trinity Summit 2133 Comment
  UCR138885  Viola glabella E. Bower, S. Marubayashi, E. Perry 1997-5-10 53 Humboldt Titlow Hill Road, 1.5 mi past intersection with Hwy 299 975 Comment
  HSC41234  Viola hallii Brad Klipfel 1974-5-8 324 Humboldt Horse Mtn.; E of the towers Comment
  CAS-BOT-BC530123  Viola lobata subsp. integrifolia J. H. Thomas 1949-6-13 907 Humboldt along trail between Le Perron Flat and Whiteys Peak; Six Rivers National Forest 1371 Comment
  JEPS50250  Viola macloskeyi Hilda W. Grinnell 1932-7-19 30 Humboldt McKay Camp; South Fork Mountain, McKay Camp 1676 Comment
  CHSC96699  Viola palustris Gordon Leppig 1998-5-11 761 Humboldt Big Lagoon County Park, Big Lagoon Bog. NAD 27 UTM Zone 10, 405321E, 4557202N. 3 Comment
Read comments
Oct 11 2009
  SEINET201005 Image available Viola palustris J. P. Tracy 1904-7-31 2126 Humboldt Eureka 61 Comment
  POM222663  Viola praemorsa subsp. praemorsa Milo S. Baker 1935-4-18 8059 Humboldt Near headwaters of South Fork of Yager Creek, about 2 mi W of Bridgeville-Kneeland Hwy, on road to Carlotta. Comment
  RSA79371  Viola praemorsa subsp. praemorsa E. K. Balls, Lee W. Lenz 1952-5-12 17198 Humboldt 0.6 mi E of Dinsmore along Hwy 36 from Alton to Red Bluff. Comment
  SEINET200805 Image available Viola quercetorum J. P. Tracy 1913-6-17 4149 Humboldt Burr Valley NW slope of Buck Mountain 1067 Comment
  HSC100698  Viola sarmentosa Carl C. Marshall Mar 1886 145 Humboldt Throughout Humboldt County. Comment
  CHSC94931  Viola sempervirens K. Lang; J. Lang 2005-3-16 50 Humboldt Trinidad, N. California coast. 51 Comment
  HSC42197  Viola sempervirens Ed Cope 1977-4-23 23 Humboldt 2.5 mi. S of Shelter Cove Rd. South Fork of Bear Creek at Wailaki Campground 561 Comment
  UC709441  Viola sempervirens Joseph P. Tracy 1941-4-8 16854 Humboldt head of Willow Creek ( Willow Creek Canyon, along Trinity Highway); Willow Creek Canyon, Willow Creek 762 Comment
  UCR37515  Viola sempervirens C. G. Phillips, L. Cole, S. A. Haultain, K. B. Barrows 1984-5-27 109 Humboldt Onion Mountain, Rd. 13 Nol, 7.0 mi west of Bluff Creek (SR 96) 1300 Comment
  HSC34797  Viola sempervirens John Palmer 1975-4-9 299 Humboldt 40 yds. E of intersection of 17th at Bayview St., Arcata Comment
  UCD93441  Vulpia bromoides Linda M. Barker 1976-4-30 1398 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  SEINET202037 Image available Vulpia microstachys var. pauciflora Joeseph P. Tracy 14825 Humboldt French Camp Ridge 1067 Comment
  UC1103721  Vulpia microstachys var. pauciflora Joseph P. Tracy 1926-5-15 7478 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC180481  Vulpia microstachys var. pauciflora Joseph P. Tracy 1914-5-14 4463 Humboldt Fort Seward; Northern Coast Ranges 121 Comment
  HSC70350  Vulpia myuros M. A. Baker 1980-6-7 1810 Humboldt Near Brush Mtn. 1128 Comment
  HSC9926  Vulpia myuros E. W. Styskel 1964-4-3 56 Humboldt 0.25 mi. S of Garberville along Sprowl Creek Rd. Comment
  HSC9939  Vulpia myuros R. H. Berg 1963-4-18 54 Humboldt Arcata Bottoms, Arcata. Comment
  UC53369  Vulpia myuros var. hirsuta M. A. H. 1896-6-2 Humboldt Eureka Comment
  UC154108  Whipplea modesta J. P. Tracy 1906-4-15 2412 Humboldt above Korbel; Bald Mt. 609 Comment
  HSC13045  Woodwardia fimbriata Steve Dorei 1970-10-13 45 Humboldt H.S.U. campus, Arcata, W of Forestry building, SW corner of parking lot Comment
  POM161064  Woodwardia fimbriata Joseph P. Tracy 1926-11-7 7824 Humboldt North Coast Region; around Humboldt Bay: Table Bluff 152 Comment
  HSC40040  Wyethia angustifolia Thomas W. Nelson, Jane P. Nelson 1976-7-1 2891 Humboldt Ridge N of Bear Creek 1463 Comment
  UC1223302  Wyethia angustifolia Joseph P. Tracy 1940-6-25 18876 Humboldt nw slope of mountain Buck Mountain, Burr Valley 914 Comment
  JEPS109808  Wyethia longicaulis Dean W. Taylor 2004-6-24 19132 Humboldt Horse Mountain, along Titlow Hill Road 0.4 miles north from the junction with the road to the mountain summit 1310 Comment
  UC302182  Wyethia longicaulis Joseph P. Tracy 1926-6-20 7658 Humboldt Horse Mountain Northern Coast Ranges 1371 Comment
  UC582623  Xanthium spinosum Joseph P. Tracy 1929-11-11 8686 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC25958  Xanthium strumarium Thomas W. Nelson 1970-10-31 286 Humboldt Eel River near N end of the Scotia Bluff. Comment
  UC1199227  Xanthium strumarium Joseph P. Tracy 1921-12-11 5982 Humboldt Alton Northern Coast Ranges, Eel River 30 Comment
  HSC12015  Zeltnera muehlenbergii Wilbur Peterson 1970-10-31 102 Humboldt Scotia Bluffs, edge of Eel River Comment
  HSC8422  Zeltnera muehlenbergii D. E. Anderson 1962-7-14 2264 Humboldt Comment
  HSC40300  Zigadenus micranthus Thomas W. Nelson, Jane P. Nelson 1976-7-1 2901 Humboldt Along ridge N of Bear Creek 1463 Comment
  CAS-BOT-BC532737  Zigadenus micranthus Doris K. Kildale 1926-3-23 1606 Humboldt Alton Hill Comment
  UC159987  Zostera marina R. W. Skinner Oct 1910 Humboldt Eureka Comment
  UC297846  Zostera marina H. E. Parks 1923-5-30 1756 Humboldt Eureka Comment



  Copyright © 2019 Regents of the University of California — Updated 11 January 2019
0.17 processing seconds