40.89180 40.99180 -123.71800 -123.61800 UC/JEPS: Consortium Search Results
Search Results — 1343 specimen records retrieved (1343 records with coordinates)
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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/consortium/).
 Records are made available under the CCH Data Use Terms.

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC77964  Abies concolor L. R. Abrams 1918-6-15 7128 Humboldt Brannan Mt near Willow Creek 1341 Comment
  CAS-BOT-BC78051  Abies grandis L. R. Abrams 1918-6-15 7100 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  CAS-BOT-BC330525  Acer circinatum L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek Road Comment
  CAS-BOT-BC331587  Acer macrophyllum Doris K. Kildale 1926-8-15 2527 Humboldt Willow Creek near mouth - between first and second fords 152 Comment
  HSC2808  Acer macrophyllum A. H. Sartain 1964-4-25 Humboldt 6 mi. W of Willow Creek on Hwy. 299 Comment
  UC1199019  Acer macrophyllum Joseph P. Tracy 1933-4-2 10955 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC165822  Acer macrophyllum Joseph P. Tracy 1911-7-9 3461 Humboldt along Willow Creek Northern Coast Ranges, Trib of Trinity River, Willow Cr ((Tributary of Trinity River), near its mouth) 152 Comment
  UC668173  Acer macrophyllum Joseph P. Tracy 1933-4-2 10955 Humboldt Willow Creek Trinity River Valley, Willow Creek 152 Comment
  HSC73777  Achillea millefolium M. A. Baker 1980-6-7 1770 Humboldt Near Brush Mtn. 1128 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
  CAS-BOT-BC210655  Achnatherum lemmonii Joseph P. Tracy 1930-7-10 8866 Humboldt Brannan Mountain 1219 Comment
  UC526753  Achnatherum lemmonii Joseph P. Tracy 1930-7-10 8866 Humboldt Brannan Mountain Northern Coast Ranges, Brannan Mountain 1219 Comment
  SBBG7504  Adenocaulon bicolor H. and M. Dearing 1939-6-20 3687 Humboldt W of Willow Crk Comment
  CAS-BOT-BC65626  Adiantum jordanii Doris K. Kildale 1926-5-2 1899 Humboldt Willow Creek Flat - Trinity River tributary 152 Comment
  HSC960  Adiantum jordanii D. E. Anderson 1965-5-15 3701 Humboldt About 2 mi. NW of Hoopa on Bald Hills Rd. Comment
  UC249662  Adiantum jordanii Joseph P. Tracy 1922-4-30 6025 Humboldt near Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC59857  Ageratina occidentalis M. A. Baker 1979-7-7 1016 Humboldt 9.5 km E of Berry Summit along Hwy. 299, N bank of Willow Creek Comment
  CAS-BOT-BC29624  Agoseris grandiflora var. grandiflora Doris Kildale 1927-7-3 3648 Humboldt Willow Creek Flat 152 Comment
  UC1239510  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1932-6-14 10159 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CAS-BOT-BC15349  Agoseris heterophylla L. R. Abrams 1918-6-16 7136 Humboldt Willow Creek Comment
  UC166071  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1911-7-7 3391 Humboldt at meadows on mountainside near, (3 mi nw of junc of Willow Creek w/ Trinity R.) Beebe's Ranch; Northern Coast Ranges, Willow Creek, Trinity River 914 Comment
  UCD92452  Agrostis Joseph P. Tracy 1936-6-10 14917 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC526887  Agrostis alba Joseph P. Tracy 1927-8-7 8326 Humboldt moist ground by Lack Pond; Northern Coast Ranges, Trinity River Valley 152 Comment
  CAS-BOT-BC127294  Agrostis exarata Joseph P. Tracy 1935-7-21 14111 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  GH341187  Agrostis exarata S. K. Harris & J. P. Tracy 1936-6-10 3247 Unknown Tracy's Ranch, Willow Creek Comment
  GH341188  Agrostis exarata S. K. Harris & J. P. Tracy 1936-6-10 3241 Unknown Tracy's Ranch, Willow Creek Comment
  GH341221  Agrostis exarata J. P. Tracy 1935-7-21 14111 Unknown Trinity River Valley, at Willow Creek 152 Comment
  UC1145058  Agrostis exarata Joseph P. Tracy 1936-6-3 14849 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1145061  Agrostis exarata Harold E. Parks and Joseph P. Tracy 1941-7-5 11489 Humboldt Coon Creek, east side of Trinity River below Willow Cr. 152 Comment
  UC1145062  Agrostis exarata Joseph P. Tracy 1936-6-10 14917 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC186904  Agrostis exarata Joseph P. Tracy 1911-7-7 3386 Humboldt 3 mi nw Junction of Willow Creek with Trinity River; Northern Coast Ranges 914 Comment
  UC552714  Agrostis exarata Joseph P. Tracy 1935-7-21 14113 Humboldt at Willow Creek (in open field); Trinity River Valley 152 Comment
  UCD52494  Agrostis exarata Joseph P. Tracy 1935-7-21 14111 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC187118  Agrostis hallii Joseph P. Tracy 1911-7-4 3288 Humboldt near Willow Creek (hill slopes at w side of Trinity River); Northern Coast Ranges, Trinity 182 Comment
  UC1103371  Agrostis viridis Joseph P. Tracy 1911-7-9 3460 Humboldt wet places along Willow Creek (creek is tributary of Trinity River); Northern Coast Ranges 243 Comment
  HSC73963  Aira caryophyllea Gail Newton 1980-6-7 127 Humboldt Near Brush Mountain 1128 Comment
  UC1103298  Aira caryophyllea Joseph P. Tracy 1922-4-30 6017 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1103299  Aira caryophyllea Joseph P. Tracy 1919-5-31 5142 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  UCD55742  Aira caryophyllea Freed W. Hoffman 1946-5-24 1725 Trinity along Trinity River. Comment
  CAS-BOT-BC138338  Aira caryophyllea var. caryophyllea Doris K. Kildale 1926-5-2 1890 Humboldt Willow Creek Flat. Trinity River Valley. 152 Comment
  SBBG1284  Alnus incana subsp. tenuifolia H. and M. Dearing 1939-6-23 3691 Humboldt E fork of Willow Crk Comment
  A401357  Alnus rhombifolia J. P. Tracy 1931-10-11 9717 Unknown Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC170942  Alnus rhombifolia Doris K. Kildale 1925-8-13 1121 Humboldt Willow Creek near its mouth 152 Comment
  UC1197945  Alnus rhombifolia Joseph P. Tracy 1931-12-25 9766 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  UC162707  Alnus rhombifolia Joseph P. Tracy 1911-7-4 3296 Humboldt Willow Creek Northern Coast Ranges (near mouth (creek is a tributary of Trinity River)) 182 Comment
  UC213001  Alnus rhombifolia Joseph P. Tracy 1919-9-27 5303 Humboldt Willow Creek Northern Coast Ranges (near its mouth, (creek is a tributary of Trinity River)) 152 Comment
  UC503085  Alnus rhombifolia Joseph P. Tracy 1931-10-11 9717 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1222279  Alnus rubra Joseph P. Tracy 1950-7-8 18982 Humboldt Willow Creek Canyon; along Trinity Highway Comment
  UC1103308  Alopecurus aequalis Joseph P. Tracy 1927-8-7 8320 Humboldt opposite mouth of Willow Creek Lack Pond; Northern Coast Ranges, Trinity R. Valley, Lack Pond 152 Comment
  UC1103309  Alopecurus aequalis Joseph P. Tracy 1923-6-27 6381 Humboldt near the S. Fork Trinity R. Valley (shores of Lack Pond); Northern Coast Ranges, , Lack Pond 182 Comment
  UC187254  Alopecurus aequalis Joseph P. Tracy 1911-7-7 3400 Humboldt 3 mi. n.w. of junction of Willow Creek with Trinity R. (at meadows on mt. side, near Beebe's Ranch); Northern Coast Ranges 914 Comment
  UC212868  Alopecurus aequalis Joseph P. Tracy 1919-5-31 5179 Humboldt near mouth of Willow Creek (shores of Lack Pond); Northern Coast Ranges, valley of Trinity R., Lack Pond 152 Comment
  UC673032  Amaranthus albus Joseph P. Tracy 1940-10-15 16756 Humboldt Willow Creek Trinity River Valley 152 Comment
  RSA167300  Ambrosia artemisiifolia Joseph P. Tracy 1950-8-20 19313 Humboldt Frank Graham's place. Trinity River Valley at Willow Creek. 152 Comment
  UC1199258  Ambrosia artemisiifolia Joseph P. Tracy 1936-9-18 15187 Humboldt at Willow Creek; Trinity River Valley 152 Comment
  UC1222883  Ambrosia artemisiifolia Joseph P. Tracy 1950-8-20 19313 Humboldt Frank Graham's place; Trinity River Valley, Willow Creek 152 Comment
  HSC70381  Amelanchier alnifolia M. A. Baker 1980-6-7 1794 Humboldt Near Brush Mtn. 1128 Comment
  UC1198749  Amelanchier utahensis Joseph P. Tracy 1921-4-30 6022 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1198751  Amelanchier utahensis Joseph P. Tracy 1937-4-3 15241 Humboldt Willow Creek; Trinity River Valley 152 Comment
  UC505104  Ammannia robusta Joseph P. Tracy 1931-9-7 9659 Humboldt Trinity R. Valley at Willow Creek; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  SBBG19484  Anaphalis margaritacea J. A. Lowery -Aug-1962 27 Humboldt Willow Crk, ca. 30 mi E of Eureka 457 Comment
  CAS-BOT-BC271497  Anisocarpus madioides L. R. Abrams 1918-6-15 7121 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  CAS-BOT-BC271498  Anisocarpus madioides L. R. Abrams 1918-6-16 7139 Humboldt Willow Creek Comment
  HSC22864  Anisocarpus madioides D. E. Anderson 1965-5-8 3640 Humboldt About 2 mi. N of Willow Creek on road running along E side of Trinity River Comment
  JEPS13332  Anthemis arvensis Joseph P. Tracy 1937-10-3 15691 Humboldt Willow Creek Trinity River Valley, Willow Creek 152 Comment
  UC582631  Anthemis arvensis Joseph P. Tracy 1937-10-3 15691 Humboldt Willow Creek Trinity River Valley, Willow Creek 152 Comment
  UC582630  Anthemis cotula Joseph P. Tracy 1933-7-3 12633 Humboldt Willow Creek; Trinity River Valley 152 Comment
  JEPS83355  Antirrhinum vexillocalyculatum subsp. breweri David M. Thompson 1983-6-30 359 Humboldt 0.9 mi from Hwy. 299 in Willow Creek (2.7 mi from start of Patterson Rd (at end of River Rd), FS Rd 10N02 (to Waterman Ridge and Horse Linto Creek), 0.8 mi n of jct with Sunset Pl); Willow Creek, Willow Creek Quad. (15', 1952) 213 Comment
  UC1198742  Aphanes occidentalis Joseph P. Tracy 1919-5-31 5767 Humboldt Northern Coast Ranges. Along Willow Creek (Tributary of Trinity River) Near its mouth 152 Comment
  HSC18044  Aquilegia formosa D. E. Anderson 1965-5-1 3568 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  UC162631  Aquilegia formosa Joseph P. Tracy 1911-7-6 3337 Humboldt between Three Creeks and mouth of Willow Creek Northern Coast Ranges Comment
  HSC18041  Aquilegia formosa var. formosa N. D. Dennis 1965-5-8 57 Humboldt 2.5mi N of Willow Creek Comment
  UC1222664  Arabidopsis thaliana Joseph P. Tracy 1950-4-23 18637 1/2 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  UC492254  Arabidopsis thaliana Joseph P. Tracy 1932-5-17 10091 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  UC552301  Arabidopsis thaliana Joseph P. Tracy 1935-4-20 13788 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  UC552302  Arabidopsis thaliana Joseph P. Tracy 1935-4-20 13787 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  HSC70390  Arabis breweri var. breweri Gail Newton 1980-6-7 140 Humboldt Near Brush Mtn. 1128 Comment
  RSA46724  Aralia californica Doris K. Kildale 1936-10-3 15099 Humboldt Willow Creek Comment
  SJSU2568  Aralia californica H. L. Buckalew 1962-7-2 Humboldt junction of Willow Creek & E Fork Willow Creek on Hwy 299, eastern Humboldt County Comment
  CAS-BOT-BC128700  Arbutus menziesii Doris K. Kildale 1925-8-13 1114 Humboldt Willow Creek Flat - Trinity River Valley 152 Comment
  CHSC107101  Arbutus menziesii M. Mitchell 2010-4-9 4 Humboldt Willow Creek @ Highway 299 East. 207 Comment
  HSC95925  Arbutus menziesii Will Ferrand 2002-4-27 38 Humboldt 1 mi. E of the intersection of Hwy. 299 and Willow Creek Rd. 198 Comment
  UC1196879  Arbutus menziesii Frank A. Graham 1919-12-20 Humboldt w side of Trinity River near Willow Creek; Northern Coast Ranges, Trinity River 152 Comment
  UC1196880  Arbutus menziesii F. C. Gregory 1919-10-10 Humboldt Trinity River Valley near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC213505  Arbutus menziesii Frank A. Graham 1919-12-20 Humboldt w side of Trinity River near Willow Creek; Northern Coast Ranges, Trinity River 152 Comment
  UC213507  Arbutus menziesii Frank A. Graham 1919-12-20 Humboldt w side of Trinity River near Willow Creek; Northern Coast Ranges, Trinity River 152 Comment
  UC249508  Arbutus menziesii Joseph P. Tracy 1922-4-30 6004 Humboldt Trinity River Valley near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1198673  Arctostaphylos Joseph P. Tracy 1937-4-3 15248 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC582721  Arctostaphylos Joseph P. Tracy 1937-4-3 15247 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC582722  Arctostaphylos Joseph P. Tracy 1937-4-3 15246 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC7606  Arctostaphylos canescens Paul Shields May 1955 Humboldt 2 mi. N of Willow Creek Comment
  SEINET2033691 Image available Arctostaphylos canescens Joseph P. Tracy 1941-4-11 16861 Humboldt Willow Creek Canyon along Trinity Highway 610 Comment
  UCD39979  Arctostaphylos canescens Rodney Gale Myatt 1971-9-21 1208 Trinity About 1 mi. west of the town of Willow Creek. 426 Comment
  CAS-BOT-BC24092  Arctostaphylos canescens subsp. canescens L. R. Abrams 1918-6-15 7112 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  CAS-BOT-BC25212  Arctostaphylos canescens subsp. canescens L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek Road. Comment
  CAS-BOT-BC23776  Arctostaphylos columbiana Doris K. Kildale 1926-8-15 2528 Humboldt Willow Creek, Upper Flat 182 Comment
  HSC27128  Arctostaphylos manzanita J. P. Smith, J. O. Sawyer 1973-2-10 5840 Humboldt 2.7 mi. W of Hwy. 96 on Brannan Mtn. Road, N of Willow Creek 366 Comment
  CAS-BOT-BC24326  Arctostaphylos manzanita subsp. manzanita L. R. Abrams 1918-6-15 7111 Humboldt Brannan Mt. near Willow Creek. 1371 Comment
  CAS-BOT-BC24369  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1937-4-3 15247 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CAS-BOT-BC24370  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1937-4-3 15246 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CAS-BOT-BC24373  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1925-8-13 1382 Humboldt Willoe Creek Flat. 152 Comment
  CAS-BOT-BC38830  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1934-7-1 13275 Humboldt Trinity river Valley at willow Creek 152 Comment
  CAS-BOT-BC38837  Arctostaphylos manzanita subsp. manzanita C. Hart Merriam 1920-9-14 s.n. Humboldt Mts. near Willow Creek (1st ridge west of Trinity River on Willow Creek Road) Comment
  CAS-BOT-BC38838  Arctostaphylos manzanita subsp. manzanita C. Hart Merriam 1920-9-14 s.n. Humboldt Mts. near Willow Creek (1st ridge west of Trinity River on Willow Creek Road) Comment
  CAS-BOT-BC38839  Arctostaphylos manzanita subsp. manzanita C. Hart Merriam 1920-9-14 s.n. Humboldt Mts. near Willow Creek (1st ridge west of Trinity River on Willow Creek Road) Comment
  JEPS38923  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1933-4-2 10949 Humboldt Willow Creek Trinity River Valley 152 Comment
  JEPS38924  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1937-4-3 15247 Humboldt Willow Creek Trinity River Valley 152 Comment
  JEPS38928  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1937-4-3 15246 Humboldt Willow Creek Trinity River Valley 152 Comment
  JEPS38938  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1933-4-2 10949 Humboldt Willow Creek Trinity River Valley 152 Comment
  JEPS38980  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1934-7-1 13275 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC162734  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1911-7-8 3449 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  UC249507  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1922-4-30 6043 Humboldt mts. slopes along road between Three Creeks and mouth of Willow Creek; Northern Coast Ranges, Gopher Camp <Langdons place> 762 Comment
  UC585963  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1933-4-2 10949 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC585968  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1934-7-1 13275 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1196871  Arctostaphylos nevadensis Joseph P. Tracy 1911-7-7 3425 Humboldt viz. ridge n Willow Creek (between Willow and Campbell Creeks, near the summit); Northern Coast Ranges, Brannan Mountain 1219 Comment
  UC1116236  Arenaria serpyllifolia subsp. serpyllifolia Joseph P. Tracy 1948-5-15 17975 Humboldt Trinity River Valley, Willow Creek 152 Comment
  UC1198332  Arenaria serpyllifolia subsp. serpyllifolia Joseph P. Tracy 1929-4-28 8545 Humboldt Trinity River Valley, Willow Creek 152 Comment
  UC161045  Arenaria serpyllifolia subsp. serpyllifolia Joseph P. Tracy 1911-7-8 3450 Humboldt (Tributary of trinity river) near its mouth Northern Coast Ranges,Willow Creek 152 Comment
  OBI75994  Aristida oligantha Joseph P. Tracy 1938-8-14 16110 Humboldt Trinity River Valley, at Willow Crk 152 Comment
  RSA152411  Aristida oligantha Joseph P. Tracy 1938-8-14 16110 Humboldt Trinity River Valley at Willow Creek 152 Comment
  SEINET200929  Aristida oligantha J. P. Tracy 1919-9-15 5222 Humboldt Northern Coast Ranges; valley of Trinity River near mouth of Willoe Creek 152 Comment
  UC1103321  Aristida oligantha Joseph P. Tracy 1921-9-4 5951 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1145043  Aristida oligantha Joseph P. Tracy 1938-8-14 16110 Humboldt Willow Creek Trinity River Valley 152 Comment
  UCD56445  Aristida oligantha Joseph P. Tracy 1938-8-14 16110 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  JEPS20973  Arnica cernua Joseph P. Tracy 1926-5-2 7449 Humboldt near Ruby Creek; Northern Coast Ranges, Ruby Creek 609 Comment
  UC275462  Arnica cernua Joseph P. Tracy 1925-6-7 7057 Humboldt near Ruby Creek; Northern Coast Ranges, Willow Creek Canyon 609 Comment
Read comments
Feb 27 2007
  UC302176  Arnica cernua Joseph P. Tracy 1926-5-2 7449 Humboldt near Ruby Creek; Northern Coast Ranges, Willow Creek Canyon 609 Comment
Read comments
Feb 27 2007
  CAS-BOT-BC82431  Arnica discoidea Doris K. Kildale 1927-7-3 3641 Humboldt Willow Creek Flat 152 Comment
  HSC8988  Arrhenatherum elatius J. A. Waller 1965-5-2 29 Humboldt Along Hwy. 96 near Willow Creek Comment
  CHSC97953  Asarum hartwegii D. E. Anderson 1965-5-1 3566 Humboldt Along Hw. 96, 1.9 mi. no. of Willow Creek. Comment
  HSC3273  Asarum hartwegii Doris K. Kildale 1926-5-2 1876 Humboldt Willow Creek Comment
  HSC3274  Asarum hartwegii D. E. Anderson 1965-5-8 3647 Humboldt About 3 mi. N of Willow Creek along rd. on E side of Trinity River. Comment
  UCR111208  Asarum hartwegii D. E. Anderson 1965-5-1 3566 Humboldt Along Hwy 96, 1.9 mi. north of Willow Creek. 162 Comment
  SEINET201000  Asclepias cordifolia Joseph P. Tracy 1911-7-9 3477 Humboldt West side of Trinity River near Willow Creek. 183 Comment
  CAS-BOT-BC65944  Aspidotis densa L. R. Abrams 1918-6-15 7123 Humboldt Brannan Mt near Willow Creek 1371 Comment
  UC162774  Aspidotis densa Joseph P. Tracy 1911-7-6 3354 Humboldt along rd between Three Creeks and mouth of Willow Creek; Northern Coast Ranges 762 Comment
  GH366432  Astragalus umbraticus V. Rattan 1883-06-01 - 1883-07-01 Unknown Willow Creek Comment
  UC1198292  Athysanus pusillus Joseph P. Tracy 1922-4-30 6016 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC100249  Avena fatua J. P. Smith, & J. O. Sawyer 2010-5-2 12793 Humboldt At junction of Hwy. 96 and Big Rock Access Road. 145 Comment
  UC1152027  Avena fatua Joseph P. Tracy 1951-5-26 19510 Humboldt Willow Creek Trinity River Valley, Trinity River 152 Comment
  UC1152028  Avena sativa Joseph P. Tracy 1951-5-26 19511 Humboldt Willow Creek Trinity River Valley 152 Comment
  UCD56463  Avena sativa Joseph P. Tracy 1951-5-26 19511 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC1199297  Baccharis pilularis Joseph P. Tracy 1939-10-7 16507 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC492246  Barbarea orthoceras Joseph P. Tracy 1928-4-22 8413 Humboldt along streamlet, Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC75676  Berberis nervosa L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek Road. Comment
  HSC3348  Berberis nervosa Eugene Andreuccetti 1964-5-2 36 Humboldt 5 mi. W of Willow Creek on Hwy. 299 Comment
  HSC70384  Berberis pinnata M. A. Baker 1980-6-7 1801 Humboldt Near Brush Mtn. 1128 Comment
  CAS-BOT-BC420257  Boykinia occidentalis Mrs. E. C. Van Dyke 1931-6-30 s.n. Humboldt Willow Creek Comment
  UC1145097  Briza maxima Joseph P. Tracy 1950-5-30 18711 Humboldt Willow Creek Trinity River Valley 152 Comment
  UCD57276  Briza maxima Joseph P. Tracy 1950-5-30 18711 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC1103342  Briza minor Joseph P. Tracy 1919-5-31 5141 Humboldt near mouth of Willow Creek; Northern Coast Ranges, valley of Trinity River 152 Comment
  UC187216  Briza minor Joseph P. Tracy 1911-7-5 3328 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  RSA728073  Bromus Gary D. Wallace 1979-6-24 1863 Humboldt Brush Mountain Lookout, SW of the town of Willow Creek. 1216 Comment
  SEINET799035  Bromus carinatus Joseph P. Tracy 1919-1 5159 Humboldt Hill slopes at W. side of Trinity River, near Willow Creek 152 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
  UC212891  Bromus carinatus var. carinatus Joseph P. Tracy 1919-5-31 5159 Humboldt near Willow Creek (w side of Trinity River); Northern Coast Ranges, Trinity River 152 Comment
  CAS-BOT-BC155993  Bromus diandrus Doris K. Kildale 1926-5-2 1902 a Humboldt Willows Creek Flat. 152 Comment
  UC1103358  Bromus diandrus Joseph P. Tracy 1919-5-31 5158 Humboldt near Willow Creek (w side of Trinity River); Northern Coast Ranges, Trinity River 152 Comment
  CAS-BOT-BC155427  Bromus hordeaceus Doris K. Kildale 1926-5-2 1902 Humboldt Willow Creek Flat. Trinity River Valley. 152 Comment
  UC1103366  Bromus hordeaceus Joseph P. Tracy 1919-5-31 5151 Humboldt near mouth of Willow Creek (Valley of Trinity River); Northern Coast Ranges 152 Comment
  UC176584  Bromus hordeaceus Joseph P. Tracy 1911-7-5 3310 Humboldt near mouth of Willow Creek (Valley of Trinity River); Northern Coast Ranges 152 Comment
  CAS-BOT-BC162446  Bromus laevipes L. R. Abrams 1918-6-16 7143 Humboldt Willow Creek. Comment
  CAS-BOT-BC162447  Bromus laevipes L. R. Abrams 1918-6-16 7155 Humboldt Willow Creek. Comment
  UC1103271  Bromus laevipes Joseph P. Tracy 1911-7-6 3339 Humboldt between Three Creeks and mouth of Willow Creek (Northern Coast Ranges); Northern Coast Ranges 762 Comment
  RSA183636  Bromus marginatus D. E. Anderson 1965-5-8 3652 Humboldt About 3.5 miles north of Willow Creek along road running along east side of Trinity River Comment
  OBI22448  Bromus sitchensis Joseph P. Tracy 1937-5-31 15318 Humboldt Trinity River Valley, at Willow Crk Comment
  UC212890  Bromus tectorum Joseph P. Tracy 1919-5-31 5173 Humboldt Northern Coast Ranges, at mouth of Willow Creek, tributary of Trinity River Willow Creek; Northern Coast Ranges, Willow Creek 152 Comment
  UC1145050  Calamagrostis koelerioides Joseph P. Tracy 1936-7-26 15050 Humboldt Willow Creek Canyon; along Trinity Hwy 457 Comment
  UCD57329  Calamagrostis koelerioides Joseph P. Tracy 1936-7-26 15050 Humboldt Willow Creek Canyon, along Trinity Highway. 457 Comment
  UC673026  Calandrinia ciliata Joseph P. Tracy 1933-7-3 12638 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC80391  Calocedrus decurrens Doris K. Kildale 1928-10-7 6750 Humboldt Trinity River at Willow Creek Flat Comment
  SBBG28816  Calocedrus decurrens D. K. Kildale 1926-8-15 2522 Humboldt Willow Crk Flat 152 Comment
  HSC15377  Calochortus tolmiei D. E. Anderson 1965-5-15 3559 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek, above Trinity River Comment
  HSC15381  Calochortus tolmiei D. E. Anderson 1965-5-8 3653 Humboldt 3.5 mi. N of Willow Creek along rd. running along E of Trinity River Comment
  HSC15385  Calochortus tolmiei D. E. Anderson 1965-5-1 3559 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  HSC99312  Calochortus tolmiei M. A. Baker 1980-6-7 1813 Humboldt Near Brush Mtn. 1128 Comment
  RSA183584  Calochortus tolmiei D. E. Anderson 1965-5-15 3716 Humboldt Along Hw. 96, 1.9 miles north of Willow Creek. Comment
  UC1197677  Calochortus tolmiei Joseph P. Tracy 1922-4-30 5997 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  RSA47127  Calycadenia ciliosa Doris K. Kildale 1925-8-13 1126 Humboldt Willow Creek 152 Comment
  CAS-BOT-BC273312  Calycadenia fremontii L. R. Abrams 1918-6-16 7133 Humboldt Willow Creek Comment
  CAS-BOT-BC273314  Calycadenia fremontii Doris K. Kildale 1925-7-5 1006 Humboldt Willow Creek Flat 152 Comment
  CAS-BOT-BC275365  Calycadenia truncata var. truncata Doris K. Kildale 1927-7-3 3656 Humboldt Willow Creek Flat 152 Comment
  HSC65477  Calypso bulbosa M. A. Baker 1980-6-7 1800 Humboldt Near Brush Mtn. 1128 Comment
  UC162602  Camassia quamash Joseph P. Tracy 1911-7-7 3388 Humboldt 3 mi nw of junction of Willow Creek with Trinity River (and near Beebe's Ranch); Northern Coast Ranges 914 Comment
  UC168956  Campanula prenanthoides Joseph P. Tracy 1911-7-4 3286 Humboldt near Willow Creek (hill slopes at w side of river); Northern Coast Ranges, Trinity River 243 Comment
  SEINET3238935 Image available Capsella bursa-pastoris Joseph P. Tracy 1929-4-28 8544 Humboldt Trinity River Valley, at Willow Creek 150 Comment
  UC1199214  Capsella bursa-pastoris Joseph P. Tracy 1935-4-20 13790 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  UC1199216  Capsella bursa-pastoris Joseph P. Tracy 1940-10-15 16757 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  UC492265  Capsella bursa-pastoris Joseph P. Tracy 1929-4-28 8544 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  HSC73768  Cardamine californica M. A. Baker 1980-6-7 1773 Humboldt Near Brush Mtn. 1128 Comment
  HSC104050  Cardamine nuttallii E. R. Fyer 2015-3-19 5 Humboldt Six Rivers National Forest; along the East Fork of Willow Creek, off Hwy. 299. 505 Comment
  CAS-BOT-BC37895  Cardamine oligosperma Duart V. Brown 1942-5-11 2871 Humboldt Three miles east of East Fork of Willow Creek. Comment
  UC1103807  Cardamine oligosperma Joseph P. Tracy 1911-7-7 3396 Humboldt at the meadows on Mountain Side three mi nw of junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges, nw jct Willow Creek w/ Trinity River 914 Comment
  UC673286  Cardamine oligosperma Lincoln Constance and Reed C. Rollins 1942-5-11 2871 Humboldt three mi e East Fork Willow Creek; North Coast Ranges, e of East Fork Willow Creek Comment
  UC194819  Carex athrostachya Joseph P. Tracy 1911-7-7 3373 Humboldt 3 mi NW of junction of Willow Creek with Trinity River, and near Beebes Ranch Northern Coast Ranges 914 Comment
  JEPS79834  Carex barbarae Joseph P. Tracy 1932-6-14 10152 Humboldt Trinity River Valley at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  UC562288  Carex barbarae Joseph P. Tracy 1932-6-14 10152 Humboldt Trinity River Valley at Willow Creek 152 Comment
  CHSC102499  Carex bolanderi Peter Zika 2009-6-16 24502 Humboldt Outer North Coast Range. West shore of Trinity River, near boat ramp, N end of town of Willow Creek. 120 Comment
  JEPS79838  Carex concinnoides Joseph P. Tracy 1926-5-2 7447 Humboldt near Ruby Creek (Northern Coast Ranges, Willow Creek Canyon); Northern Coast Ranges, Willow Creek Canyon 609 Comment
  UC303016  Carex concinnoides Joseph P. Tracy 1926-5-2 7447 Humboldt near Ruby Creek; Northern Coast Ranges, Willow Creek Canyon 609 Comment
  UC1103122  Carex densa Joseph P. Tracy 1937-5-31 15325 Humboldt Trinity River Valley at Willow Creek 152 Comment
  UC562255  Carex densa Joseph P. Tracy 1936-6-3 14848 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC20010  Carex feta L. R. Abrams 1918-6-16 7164 Humboldt Willow Creek. Comment
  UC204898  Carex mendocinensis Joseph P. Tracy 1911-7-6 3343 Humboldt Northern Costa Ranges. Mountains slopes along road between Three Creeks and mouth of Willow Creek. Comment
  HSC73962  Carex multicaulis Gail Newton 1980-6-7 126 Humboldt Near Brush Mtn. 1128 Comment
  UC1103570  Carex multicaulis Joseph P. Tracy 1919-5-31 5164 Humboldt near Willow Creek (hill slopes at w side of Trinity River); Northern Coast Ranges 152 Comment
  UC249512  Carex multicaulis Joseph P. Tracy 1922-4-30 6006 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  CHSC40163  Carex nudata L. P. Janeway 1984-4-5 755 Humboldt Along the west edge of Trinity River near the Willow Creek airstrip. 137 Comment
  NY11255  Carex olympica J. P. Tracy 1911-7-7 3390 Humboldt At the meadows on mountain side, three miles northwest of junction of Willow creek with Trinity River, and near Beebe's Ranch 914.4 Comment
  UC302099  Carex pachystachya Joseph P. Tracy 1911-7-7 3390 Humboldt three mi nw junction of Willow Creek with Trinity River (at meadows on mt. side, near Beebe's Ranch); Northern Coast Ranges; NW of junction of Willow Creek w/ Trinity River, Humboldt Co., near Beebe's Ranch. 914 Comment
  CAS-BOT-BC117348  Carex stipata LeRoy Abrams 1918-6-16 7166 Humboldt Willow Creek. Comment
  UC1103577  Carex subfusca Joseph P. Tracy 1936-6-10 14916 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC562337  Carex tumulicola Joseph P. Tracy 1930-7-10 8859 Humboldt Brannan Mountain Northern Coast Ranges 1219 Comment
  JEPS3825  Castilleja applegatei subsp. martinii Joseph P. Tracy 1938-5-1 15732 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC23104  Castilleja applegatei subsp. pinetorum D. E. Anderson 1965-5-8 3638 Humboldt N of Willow Creek along Rd. on E side of Trinity River Comment
  UC604634  Castilleja applegatei subsp. pinetorum Joseph P. Tracy 1938-5-1 15732 Humboldt Willow Creek; Trinity River Valley 152 Comment
  HSC48266  Castilleja attenuata D. E. Anderson 1965-5-8 3642 Humboldt About 2 mi. N of Willow Creek on road running along E side of Trinity River Comment
  UCR39807  Castilleja attenuata L. P. Janeway 1984-5-5 754 Humboldt Road shoulder of Hwy 299 c. 1.5 mi west of Willow Creek 250 Comment
  HSC72570  Castilleja densiflora J. P. Smith, J. O. Sawyer 1976-5-2 8623 Humboldt 3.7 mi. N of junction with Hwy. 299 on Hwy. 96 61 Comment
  HSC103011  Catalpa bignonioides J. P. Smith 2014-6-6 13868 Humboldt Willow Creek. Ornamental tree 180 Comment
  HSC70378  Ceanothus cuneatus M. A. Baker 1980-6-7 1789 Humboldt Near Brush Mtn. 1128 Comment
  POM126157  Ceanothus cuneatus Joseph P. Tracy 1922-4-30 5998 Humboldt Trinity River Valley, near Willow Creek. 152 Comment
  UCD39993  Ceanothus cuneatus Rodney Gale Myatt 1971-9-21 1213 Trinity About 1 mi. west of the town of Willow Creek. 426 Comment
  CAS-BOT-BC83833  Ceanothus cuneatus var. cuneatus Dylan O. Burge 2009-5-11 1154 b Humboldt Willow Creek watershed, NW slope of Brush Mountain 410 Comment
  SEINET10805177  Ceanothus cuneatus var. cuneatus Dylan O. Burge 2009-5-11 Burge 1154 c Humboldt Willow Creek watershed, north-west slope of Brush Mountain, west of entrance to C.R.R. Brown and Sons Quarry, roadside on SR 299, 6.8 road miles (10.9 km) east of Berry Summit, 4.0 km 260 deg. (True) WSW of Willow Creek. 410 Comment
  UC249581  Ceanothus cuneatus var. cuneatus Joseph P. Tracy 1922-4-30 5998 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  CAS-BOT-BC63679  Ceanothus integerrimus L. B. Kildale 1927-7-3 3635 Humboldt Willow Creek Flat. 152 Comment
  CAS-BOT-BC63685  Ceanothus integerrimus Joseph P. Tracy 1934-4-15 13180 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  HSC18293  Ceanothus integerrimus R. E. Thill 1965-5-15 32 Humboldt 1.0 mi E of Willow Creek Comment
  UC1198001  Ceanothus integerrimus Joseph P. Tracy 1921-6-21 5840 Humboldt near Langdon's Gopher Camp Brannon Mtn. 762 Comment
  UC1198004  Ceanothus integerrimus Joseph P. Tracy 1921-6-19 5839 Humboldt ridge to n Willow Creek (between Willow Creek and campbell Creek, near Langdon's Gopher Camp.); Brannon Mountain, Northern Coast Ranges 762 Comment
  UC1198005  Ceanothus integerrimus Joseph P. Tracy 1934-4-15 13181 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC1198006  Ceanothus integerrimus Joseph P. Tracy 1937-6-26 15365 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1198012  Ceanothus integerrimus Joseph P. Tracy 1934-4-15 13182 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC166023  Ceanothus integerrimus Joseph P. Tracy 1911-7-7 3427 Humboldt ridge to n Willow Creek (between Willow and Campbell Creek, near summit.); Brannan Mtn., Northern Coast Ranges 1219 Comment
  UC275290  Ceanothus integerrimus Joseph P. Tracy 1924-7-29 6737 Humboldt Mountain slopes along rd between Three Creeks and mouth of Willow Creek Northern Coast Ranges 1005 Comment
  UC668164  Ceanothus integerrimus Joseph P. Tracy 1934-4-15 13180 Humboldt Willow Creek Trinity River Valley 152 Comment
  RSA46467  Ceanothus integerrimus var. californicus Doris K. Kildale 1927-7-3 3635 Humboldt Willow Creek Flat. Comment
  CAS-BOT-BC51145  Ceanothus lemmonii Joseph P. Tracy 1929-4-28 8551 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC502957  Ceanothus lemmonii Joseph P. Tracy 1929-4-28 8551 Humboldt Willow Creek Trinity River Valley, Northern Coast Ranges 152 Comment
  SEINET201060  Ceanothus pumilus J. P. Tracy 1946-5-4 17526 Humboldt Willow Creek Canyon along Trinity Highway 610 Comment
  CAS-BOT-BC52866  Ceanothus velutinus Joseph P. Tracy 1935-5-12 13798 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  HSC18348  Ceanothus velutinus R. E. Thill 1965-5-15 33 Humboldt 1.0 mi E of Willow Creek on Hwy. 299 Comment
  HSC90080  Ceanothus velutinus Grefsrud, Reed, Rohmer 1990-4-28 83 Humboldt 200 yds E of Willow Creek proper 220 Comment
  SEINET201062  Ceanothus velutinus J. P. Tracy 1935-5-12 13798 Humboldt Trinity River Valley at Willow Creek 152 Comment
  UC164836  Ceanothus velutinus Joseph P. Tracy 1911-7-9 3455 Humboldt along Willow Creek (tributary of Trinity River, near its mouth); Northern Coast Ranges, along Willow Creek 182 Comment
  UC668158  Ceanothus velutinus Joseph P. Tracy 1935-5-12 13798 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  UC582524  Centaurea benedicta Joseph P. Tracy 1928-10-7 8515 Humboldt at Willow Creek; Trinity River Valley 152 Comment
  UC166067  Centaurea melitensis Joseph P. Tracy 1911-7-4 3297 Humboldt along creek, near its mouth Willow Creek (tributary of Trinity River); North Coast Ranges, Trinity River, Willow Creek 182 Comment
  UC1198320  Cerastium glomeratum Joseph P. Tracy 1911-7-5 3308 Humboldt near mouth Willow Creek; Northern Coast Ranges, Willow Creek (tributary of Trinity R. 182 Comment
  UC668111  Cerastium glomeratum Joseph P. Tracy 1927-3-27 7849 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley, Willow Creek 152 Comment
  HSC2136  Cercis occidentalis Doris K. Kildale 1926-5-2 1909 Humboldt Willow Creek Comment
  HSC31807  Cercis occidentalis Steve Selva, Roger Jensen 1974-8-27 81 Humboldt Along Hwy. 299 at Willow Creek Comment
  POM126513  Cercis occidentalis Joseph P. Tracy 1922-4-30 6003 Humboldt Trinity River Valley, near Willow Creek. 152 Comment
  POM161037  Cercis occidentalis Joseph P. Tracy 1922-4-30 s.n. Humboldt Trinity River Valley, near Willow Creek. 152 Comment
  POM162070  Cercis occidentalis Joseph P. Tracy 1921-9-4 5950 Humboldt Trinity River Valley, near Willow Creek. Comment
  UC1199058  Cercis occidentalis Joseph P. Tracy 1930-9-8 9176 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  UC249526  Cercis occidentalis Joseph P. Tracy 1922-4-30 6003 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC249729  Cercis occidentalis Joseph P. Tracy 1921-9-4 5950 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  CAS-BOT-BC135531  Cercocarpus betuloides var. betuloides Joseph P. Tracy 1946-7-7 17612 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  JEPS44706  Cercocarpus betuloides var. betuloides Joseph P. Tracy 1929-8-25 8661 Humboldt Trinity River Valley at Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  UC492184  Cercocarpus betuloides var. betuloides Joseph P. Tracy 1929-8-25 8661 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  UC902138  Cercocarpus betuloides var. betuloides Joseph P. Tracy 1946-7-7 17612 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  CAS-BOT-BC85655  Chamaecyparis lawsoniana Doris K. Kildale 1927-7-3 3640 Humboldt Willow Creek Flat 152 Comment
  CAS-BOT-BC85658  Chamaecyparis lawsoniana L. R. Abrams 1918-6-15 7107 Humboldt Unspecified 1371 Comment
  HSC41288  Chamaecyparis lawsoniana Brad Klipfel 1974-7-27 482 Humboldt Horse Mtn., along Ruby Creek Comment
  HSC95786  Chamaecyparis lawsoniana Will Ferrand 2002-4-27 32 Humboldt 1.0 mi. E of intersection of Hwy. 299 and Willow Creek Rd. 198 Comment
  RSA47095  Chamaecyparis lawsoniana Doris K. Kildale 1926-8-15 2522 Humboldt Willow Creek Flat-- up Willow Creek above[?] 3 mi. from mouth 152 Comment
  SBBG11071  Chamaecyparis lawsoniana D. E. Breedlove 1961-7-4 646 Humboldt 7 mi W of Willow Crk on US Hwy 299 521 Comment
  HSC69761  Chamaesyce maculata Thomas W. Nelson, Jane P. Nelson 1977-9-4 3747 Humboldt Willow Creek Comment
  JEPS59693  Chenopodium ambrosioides Joseph P. Tracy 1934-8-4 13552 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC162630  Chenopodium botrys Joseph P. Tracy 1911-7-10 3489 Humboldt near mouth of Willow Creek; Northern Coast Ranges, valley of Trinity River 152 Comment
  UC673037  Chenopodium multifidum Joseph P. Tracy 1934-8-4 13552 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC205454  Chenopodium pumilio Joseph P. Tracy 1919-9-13 5200 Humboldt Willow Creek Northern Coast Ranges (near mouth, tributary of Eel River) 152 Comment
  HSC73779  Chimaphila menziesii M. A. Baker 1980-6-7 1772 Humboldt Near Brush Mtn. 1128 Comment
  UC1197596  Chimaphila menziesii Joseph P. Tracy 1911-7-7 3439 Humboldt ridge n. Willow Creek (between Willow & Campbell Creeks, Brannan Mt., near summit); Northern Coast Ranges, Brannan Mt. 1219 Comment
  CAS-BOT-BC451497  Chimaphila umbellata L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek Road Comment
  HSC73778  Chimaphila umbellata M. A. Baker 1980-6-7 1771 Humboldt Near Brush Mtn. 1128 Comment
  UC1197594  Chimaphila umbellata Joseph P. Tracy 1911-7-7 3421 Humboldt ridge n. of Willow Creek (between Willow & Campbell Creeks, Brannan Mt, near summit); Northern Coast Ranges, Brannan Mt. 1219 Comment
  SEINET3992219  Chlorogalum pomeridianum Unknown 1946-7-7 17611 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  SEINET3992227  Chlorogalum pomeridianum Unknown 1946-7-7 17611 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC1225859  Chlorogalum pomeridianum var. pomeridianum Joseph P. Tracy 1946-7-7 17611 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  HSC73034  Chrysolepis chrysophylla M. A. Baker 1980-6-7 1791 Humboldt Near Brush Mtn. 1128 Comment
  UC162706  Chrysolepis chrysophylla Joseph P. Tracy 1911-7-8 3448 Humboldt near Willow Creek (hill slopes at w side of Trinity River); Northern Coast Ranges 182 Comment
  UC1223064  Cichorium intybus Joseph P. Tracy 1950-7-9 18981 Humboldt Frank Graham's Farm; Willow Creek Comment
  UC479393  Cirsium arvense Marcus E. Jones, A. M. 1931-7-15 29092 Trinity near Weaverville; Willow Creek Comment
  UCR115124  Cirsium brevistylum B. Villegas 1998-8-4 s.n. Humboldt North Coast Ranges, Hwy 299 between mileposts 21.5 and 18, near Willow Creek. 415 Comment
  CDA1133  Cirsium ciliolatum G. D. Barbe, Don Shaw 1982-7-14 3890 -A Siskiyou Willow Creek; Bryant Rd. at York Rd., 3.5 mi east of Willow Creek School. Comment
  CDA1134  Cirsium ciliolatum G. D. Barbe, Don Shaw 1982-7-14 3890 -B Siskiyou Willow Creek; Bryant Rd. at York Rd., 3.5 mi east of Willow Creek School. Comment
  CDA1135  Cirsium ciliolatum G. D. Barbe, Don Shaw 1982-7-14 3890 -C Siskiyou Willow Creek; Bryant Rd. at York Rd., 3.5 mi east of Willow Creek School. Comment
  CAS-BOT-BC278060  Cirsium douglasii var. breweri Alice Eastwood; John Thomas Howell 1937-6-24 4865 Humboldt 5 miles east of Berry Summit Comment
  CAS-BOT-BC278061  Cirsium douglasii var. breweri Alice Eastwood; John Thomas Howell 1937-6-24 4865 Humboldt 5 miles east of Berry Summit Comment
  CAS-BOT-BC279974  Cirsium douglasii var. douglasii John Thomas Howell 1937-7-31 13716 Humboldt 5 miles east of Berry Summit Comment
  CAS-BOT-BC279975  Cirsium douglasii var. douglasii John Thomas Howell 1937-7-31 13716 Humboldt 5 miles east of Berry Summit Comment
  CAS-BOT-BC160971  Clarkia amoena subsp. amoena L. R. Abrams 1918-6-16 7169 Humboldt Willow Creek Comment
  CAS-BOT-BC160973  Clarkia amoena subsp. amoena L. R. Abrams 1918-6-16 7140 Humboldt Willow Creek Comment
  CAS-BOT-BC163135  Clarkia gracilis subsp. sonomensis Joseph P. Tracy 1944-7-3 17484 Sonoma Trinity River Valley, at Willow Creek 152 Comment
  UC902179  Clarkia gracilis subsp. sonomensis Joseph P. Tracy 1944-7-3 17484 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC562525  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1933-7-3 12634 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1143253  Clarkia rhomboidea H. and M. Lewis 1947-6-12 403 Trinity 6.6 mi w Trinity Co. line (U.S. Highway 299) Comment
  UC672996  Claytonia parviflora subsp. parviflora Joseph P. Tracy 1937-3-17 15285 Humboldt Willow Creek; Trinity River Valley 152 Comment
  CAS-BOT-BC443886  Claytonia sibirica Mrs. E. C. Van Dyke 1931-6-30 s.n. Humboldt Willow Creek Comment
  RSA271707  Claytonia sibirica Jane Turner, Francis M. Ball 1962-7-9 1133 ` Humboldt Redwood forest, beside scenic rdwood Hwy 2 miles S of jct with freeway, 40 miles N of Mendocino-Humboldt County line Comment
  SBBG1967  Claytonia sibirica H. and M. Dearing 1939-6-21 3689 Humboldt E fork of Willow Crk Comment
  SBBG69724  Claytonia sibirica H. and M. Dearing 1939-6-21 3689 Humboldt E fork of Willow Crk Comment
  HSC18085  Clematis lasiantha Doris K. Kildale 1925-7-5 1000 Humboldt Willow Creek Flat Comment
  CAS-BOT-BC92591  Clematis ligusticifolia Doris K. Kildale 1927-7-3 3643 Humboldt Willow Creek Flat. 152 Comment
  CAS-BOT-BC92596  Clematis ligusticifolia Mrs. E. C. Van Dyke 1931-6-30 s.n. Humboldt Willow Creek. Comment
  UC249703  Clematis ligusticifolia Joseph P. Tracy 1921-9-4 5956 Humboldt near Willow Creek (Trinity R. Valley); Northern Coast Ranges, Trinity R. Valley 152 Comment
  HSC70391  Collinsia grandiflora Gail Newton 1980-6-7 120 Humboldt Near Brush Mtn. 1128 Comment
  UC162568  Collinsia linearis Joseph P. Tracy 1911-7-6 3336 Humboldt along road between Three Creeks and Mouth of Willow Creek (Northern Coast Ranges); Northern Coast Ranges 762 Comment
  HSC70373  Collinsia parviflora Gail Newton 1980-6-7 136 Humboldt Near Brush Mtn. 1128 Comment
  HSC70376  Collinsia parviflora M. A. Baker 1980-6-7 1783 Humboldt Near Brush Mtn. 1128 Comment
  HSC70372  Collinsia rattanii Gail Newton 1980-6-7 129 Humboldt Near Brush Mtn. 1128 Comment
  UC1196839  Collinsia rattanii Joseph P. Tracy 1933-5-14 12173 Humboldt Trinity River Valley at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  UC582459  Collinsia rattanii Joseph P. Tracy 1937-5-17 15300 Humboldt Trinity River Valley at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  SBBG6896  Collinsia torreyi var. torreyi H. and M. Dearing 1939-6-21 3688 Humboldt E fork of Willow Crk Comment
  UC906687  Collomia grandiflora Joseph P. Tracy 1944-7-3 17485 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC908752  Collomia grandiflora Joseph P. Tracy 1933-7-3 12635 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC16927  Collomia heterophylla D. E. Anderson 1965-5-8 3639 Humboldt About 2 mi. N of Willow Creek on the road running along E side of Trinity River Comment
  HSC70375  Collomia heterophylla M. A. Baker 1980-6-7 1780 Humboldt Near Brush Mtn. 287 Comment
  RSA183510  Collomia heterophylla D. E. Anderson 1965-5-8 3639 Humboldt About 2 miles north of Willow Creek on road running along east side of Trinity River. Comment
  CAS-BOT-BC180241  Comandra umbellata subsp. californica Doris K. Kildale 1926-5-2 1867 Humboldt Willow Brook, rocky terrace on Trinity River 152 Comment
  RSA46800  Comandra umbellata subsp. californica Doris K. Kildale 1926-5-2 2024 Humboldt Willow Creek. Comment
  UC902062  Convolvulus arvensis Joseph P. Tracy 1949-7-31 18400 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC164847  Conyza canadensis Joseph P. Tracy 1911-7-9 3458 Humboldt near its mouth along Willow Creek; Northern Coast Ranges, Tributary of Trinity River, Willow Cr 182 Comment
  HSC73776  Corallorhiza maculata M. A. Baker 1980-6-7 1768 Humboldt Near Brush Mtn. 1128 Comment
  CAS-BOT-BC209754  Cornus glabrata Joseph P. Tracy 1919-5-31 5175 & 5210 Humboldt At Lack Pond. Trinity River Valley, near Willow Creek 152 Comment
  CAS-BOT-BC209755  Cornus glabrata L. R. Abrams 1918-6-16 7162 Humboldt Willow Creek Comment
  POM89159  Cornus glabrata Joseph P. Tracy 1919-5-31 5175 Humboldt At Lack Pond. Trinity River Valley, near Willow Creek. 152 Comment
  UC205460  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
  UC205461  Cornus glabrata Joseph P. Tracy 1919-5-31 5175 Humboldt at Lack Pond (Trinity R. Valley near Willow Creek); Northern Coast Ranges, Trinity R. Valley 152 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
  CAS-BOT-BC212010  Cornus nuttallii Doris K. Kildale 1925-8-13 1134 Humboldt Willow Creek Flat, near bluff on Trinity River 152 Comment
  HSC59488  Cornus nuttallii M. A. Ericksen 1979-4-28 237 Humboldt Across from Bigfoot statue on left side of Hwy. 299, into Willow Creek from the west. Comment
  HSC6404  Cornus nuttallii Eugene Andreuccetti 1964-5-2 42 Humboldt 1 mi. from Willow Creek, along Hwy. 299 Comment
  HSC6413  Cornus nuttallii J. J. Wagoner 1965-5-1 20 Humboldt 6 mi. W of Willow Creek along Hwy. 299 Comment
  HSC95877  Cornus nuttallii Will Ferrand 2002-4-27 30 Humboldt 1.0 mi. E of intersection of Hwy. 299 and Willow Creek Rd. 198 Comment
  OBI15277  Cornus nuttallii Joseph P. Tracy 1950-10-7 19384 Humboldt Trinity river valley, at Willow crk Comment
  RSA167408  Cornus nuttallii Joseph P. Tracy 1950-10-7 19384 Humboldt Trinity River Valley, at Willow Creek. Comment
  RSA46900  Cornus nuttallii Doris K. Kildale 1925-8-13 1134 Humboldt Willow Creek, bank of Trinity River. 152 Comment
  UC1196901  Cornus nuttallii Joseph P. Tracy 1935-4-20 13786 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  UC1196902  Cornus nuttallii Joseph P. Tracy 1934-8-24 13597 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  UC1196910  Cornus nuttallii Joseph P. Tracy 1922-4-30 6031 Humboldt Trinity R. Valley near Willow Creek; Northern Coast Ranges, 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
  UC205636  Cornus nuttallii Joseph P. Tracy 1919-9-14 5213 Humboldt near its mouth Willow Creek - Northern Coast Ranges, Willow Creek (a tributary of Trinity) Comment
  UC502978  Cornus nuttallii Joseph P. Tracy 1932-10-9 10869 Humboldt Trinity R. Valley at Willow Creek; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UCD117252  Cornus nuttallii Joseph P. Tracy 1950-10-7 19384 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC1196908  Cornus sericea subsp. sericea Joseph P. Tracy 1930-7-25 8882 Humboldt Trinity R. Valley at Willow Creek; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  UC249598  Cornus sericea subsp. sericea Joseph P. Tracy 1921-9-4 5949 Humboldt Trinity R. Valley near Willow Creek; Northern Coast Ranges, Trinity R. Valley 152 Comment
  CAS-BOT-BC210535  Cornus sessilis Doris K. Kildale 1926-8-15 2507 Humboldt Willow Creek, near its junction with the Trinity River 152 Comment
  CAS-BOT-BC210537  Cornus sessilis L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek road Comment
  CAS-BOT-BC210539  Cornus sessilis Doris K. Kildale 1927-7-3 3631 Humboldt Willow Creek Flat 152 Comment
  CAS-BOT-BC210542  Cornus sessilis Carl B. Wolf 1941-2-28 9971 Humboldt Junction of Willow Creek & its e. fork 457 Comment
  HSC26713  Cornus sessilis D. E. Anderson 1973-5-13 6027 Humboldt 100 meters S of Jct. of E Fork of Willow Creek and Willow Creek proper. Comment
  HSC40243  Cornus sessilis J. P. Smith, J. O. Sawyer 1976-5-2 8619 Humboldt 3.7 mi. N of junction with Hwy. 299 on Hwy. 96 61 Comment
  HSC6421  Cornus sessilis D. E. Anderson 1963-3-1 2368 Humboldt E Fork Forest Camp, along E Fork Willow Creek. Comment
  LA97947  Cornus sessilis Jane Turner; Francis M. Ball 1962-7-10 SK&F- 1144 Humboldt East Fork Willow Creek Forest Camp, Six Rivers National Forest, highway 299 ca. 5 mi. W of Willow Creek 457 Comment
  RSA24326  Cornus sessilis C. B. Wolf 1941-2-28 4048 Humboldt Junction of Willow Creek and its E. fork. 457 Comment
  RSA273346  Cornus sessilis J. P. Smith, J. O. Sawyer, Smith 1976-5-2 8619 Humboldt 3.7 miles north of junction with State Route 299 on State Route 96. 61 Comment
  RSA309624  Cornus sessilis W. Wisura 1983-9-2 3929 Humboldt 6 mi W of Willow Creek, at East Fork campground, along Hwy 299. Comment
  RSA394654  Cornus sessilis Jane Turner, Francis M. Ball, B. L. Turner 1962-7-10 1144 Humboldt East Fork Willow Creek Forest Camp, Hwy 299 ca. 5 mi. W of Willow Creek in Six Rivers National Forest. 457 Comment
  RSA46468  Cornus sessilis Doris K. Kildale 1927-7-3 3631 Humboldt Willow Creek Flat. Comment
  RSA46844  Cornus sessilis Doris K. Kildale 1927-7-3 3631 Humboldt Willow Creek Flat. Comment
  SFV5370  Cornus sessilis 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
  SJSU2584  Cornus sessilis H. L. Buckalew 1962-7-2 Humboldt junction of Willow Cr & E Fork Willow Cr on Hwy 299 Comment
  UC667999  Corylus californica Joseph P. Tracy 1935-3-8 13730 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  A401464  Corylus cornuta subsp. californica J. P. Tracy 1935-3-8 13730 Unknown Trinity River Valley, at Willow Creek 152 Comment
  UC667078  Crassula aquatica Joseph P. Tracy 1935-5-30 13919 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  UC1198826  Crassula connata var. erectoides Joseph P. Tracy 1922-4-30 6027 Humboldt Trinity R. Valley near Willow Creek; Northern Coast Ranges, Trinity R. Valley 152 Comment
  SEINET200990  Crataegus douglasii J. P. Tracy 1931-4-26 9335 Humboldt Trinity River Valley at Willow Creek 152 Comment
  UC1199453  Crepis capillaris Joseph P. Tracy 1919-5-31 5139 Humboldt near mouth of Willow Creek; Northern Coast Ranges, valley of Trinity River 152 Comment
  HSC70377  Crocidium multicaule M. A. Baker 1980-6-7 1787 Humboldt Near Brush Mtn. 1128 Comment
  UC1103234  Crypsis vaginiflora Joseph P. Tracy 1931-9-7 9668 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  UC175790  Cryptantha intermedia Joseph P. Tracy 1911-7-8 3453 Humboldt near Mouth of Willow Creek; Northern Coast Ranges, Valley Of Trinity River 152 Comment
  UC162944  Cupressus lawsoniana Joseph P. Tracy 1911-7-6 3341 Humboldt mountain slopes along road between Three Creeks and Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  JEPS14218  Cymopterus terebinthinus var. californicus Joseph P. Tracy 1929-6-3 8600 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UCD60076  Cynodon dactylon Joseph P. Tracy 1940-10-17 16763 Humboldt South Fork Station. 60 Comment
  SEINET200580  Cynoglossum occidentale J. P. Tracy 1930-7-10 8871 Humboldt Brannan Mtn 1219 Comment
  UC175683  Cynoglossum occidentale Joseph P. Tracy 1911-7-7 3424 Humboldt near summit Brannan Mt. (ridge n. of Willow Creek, between Willow and Campbell Creeks); Northern Coast Ranges, Brannan Mt. 1219 Comment
  UC525557  Cynoglossum occidentale Joseph P. Tracy 1930-7-10 8871 Humboldt Brannan Mt. Northern Coast Ranges, Brannan Mt. 1219 Comment
  UC1103244  Cynosurus echinatus Joseph P. Tracy 1950-6-21 18855 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  UC1145093  Cynosurus echinatus Joseph P. Tracy 1944-7-3 17486 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  SEINET200973  Cyperus eragrostis Joseph P. Tracy 1927-8-7 8309 Humboldt Trinity River Valley at Willow Creek. 152 Comment
  HSC7250  Cyperus squarrosus J. P. Tracy 1931-9-7 9662 Humboldt Trinity River Valley, Willow Creek 152 Comment
  JEPS79881  Cyperus squarrosus Joseph P. Tracy 1931-9-7 9662 Humboldt Trinity River Valley at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  CHSC92487  Cyperus strigosus Gordon Leppig 2004-9-6 2197 Humboldt Trinity River. East bank of river on sandy shore. Across river from the Loncar Summer Estate, 3.5 k north of Willow Creek. UTM Zone 10, 446562E, 4535514N 120 Comment
  HSC7284  Cyperus strigosus D. E. Anderson 1963-9-21 2839 Humboldt 0.5 mi E of Willow Creek Comment
  CAS-BOT-BC70541  Cystopteris fragilis Doris K. Kildale 1926-5-2 1880 Humboldt Willow Creek Flat - Trinity River tributary 152 Comment
  HSC1045  Cystopteris fragilis D. E. Anderson 1965-5-15 3713 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  RSA728072  Dactylis glomerata Gary D. Wallace 1979-7-24 1864 Humboldt Brush Mountain Lookout, SW of the town of Willow Creek. 1216 Comment
  RSA728077  Dactylis glomerata Gary D. Wallace 1979-6-24 1859 Humboldt Brush Mountain Lookout, SW of the town of Willow Creek; near Honker Timber scale (?), near lookout. 1216 Comment
  CAS-BOT-BC189734  Danthonia californica Joseph P. Tracy 1930-7-10 8860 Humboldt Northern Coast Ranges. Brannan Mountain. 1219 Comment
  CAS-BOT-BC189742  Danthonia californica Joseph P. Tracy 1930-7-10 8860 Humboldt Northern Coast Ranges. Brannan Mountain. 1219 Comment
  HSC9549  Danthonia californica J. P. Tracy 1930-7-10 8860 Humboldt Brannan Mountain. 1220 Comment
  UC183807  Danthonia californica Joseph P. Tracy 1911-7-7 3385 Humboldt 3 mi nw junction of Willow Creek with Trinity River (meadows on mountain side, near Beebe's Ranch); Northern Coast Ranges 914 Comment
  UC526708  Danthonia californica Joseph P. Tracy 1930-7-10 8860 Humboldt Brannan Mountain Northern Coast Ranges 1219 Comment
  RSA10087  Danthonia californica var. californica Joseph P. Tracy 1930-7-10 8860 Humboldt Brannan Mountain 1220 Comment
  CAS-BOT-BC420364  Darmera peltata Doris K. Kildale 1926-5-2 1900 Humboldt Willow Creek Flat Comment
  RSA152334  Delphinium hesperium Joseph P. Tracy 1948-6-20 18070 Humboldt Trinity River Valley, Willow Creek Comment
  UC1225748  Delphinium hesperium subsp. hesperium Joseph P. Tracy 1948-6-20 18070 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC161541  Delphinium hesperium subsp. hesperium Joseph P. Tracy 1911-7-7 3376 Humboldt meadows on mountainside 3 mi nw junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  HSC25012  Delphinium nudicaule Eugene Andreuccetti 1964-5-2 38 Humboldt 50 yds. from Ruby Creek on Hwy. 299 Comment
  UC249530  Delphinium nudicaule Joseph P. Tracy 1922-4-30 6012 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC249645  Delphinium nuttallianum Joseph P. Tracy 1922-4-30 6029 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC187272  Deschampsia danthonioides Joseph P. Tracy 1911-7-7 3379 Humboldt 3 mi. n.w. of junction of Willow Creek with Trinity R. (near Beebe's Ranch, at meadows on mt. side); Northern Coast Ranges 914 Comment
  CAS-BOT-BC201770  Deschampsia elongata L. R. Abrams 1918-6-16 7153 Humboldt Willow Creek Comment
  UC187266  Deschampsia elongata Joseph P. Tracy 1911-7-5 3316 Humboldt near its mouth (a tributary of Trinity R.) Willow Creek; Northern Coast Ranges, Willow Creek 243 Comment
  UC187267  Deschampsia elongata Joseph P. Tracy 1911-7-7 3412 Humboldt 3 mi. n.w. of junction of Willow Creek with Trinity R. (near Beebe's Ranch, at meadows on mt. side); Northern Coast Ranges 914 Comment
  GH355544  Dichanthelium acuminatum S. K. Harris & J. P. Tracy 1936-6-10 3242 Unknown Tracy's Ranch, Willow Creek Comment
  CAS-BOT-BC209193  Dichanthelium acuminatum subsp. acuminatum Joseph P. Tracy 1931-5-17 9427 Humboldt Along river, Willow Creek, Trinity River Valley. 152 Comment
  CAS-BOT-BC209194  Dichanthelium acuminatum subsp. acuminatum Joseph P. Tracy 1931-5-17 9427 Humboldt Along river, Willow Creek, Trinity River Valley. 152 Comment
  RSA10045  Dichanthelium acuminatum var. fasciculatum Joseph P. Tracy 1931-5-17 9427 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  RSA10046  Dichanthelium acuminatum var. fasciculatum Joseph P. Tracy 1927-8-7 8313 Humboldt Trinity River Valley, at Willow Creek Comment
  CAS-BOT-BC208956  Dichanthelium oligosanthes subsp. scribnerianum Joseph P. Tracy 1927-8-7 8314 Humboldt Willow Creek, Trinity River Valley 152 Comment
  SEINET200953 Image available Dichanthelium oligosanthes subsp. scribnerianum Joseph P. Tracy 1931-5-17 9428 Humboldt Rocky places along river. Trinity River Valley at Willow Creek Comment
  UC1198165  Dichelostemma capitatum Joseph P. Tracy 1922-4-30 5995 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC12535  Dichelostemma congestum J. Allen DeCou 1899-1 Humboldt Willow Creek Comment
  HSC3031  Dichelostemma ida-maia D. E. Anderson 1965-5-15 3710 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek, above Trinity River Comment
  UC1198161  Dichelostemma multiflorum Joseph P. Tracy 1911-7-6 3346 Humboldt along road between Three Creeks and Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  UC1225863  Dichelostemma multiflorum Joseph P. Tracy 1943-5-9 17422 Humboldt Willow Creek Trinity River Valley 152 Comment
  POM89789  Digitaria sanguinalis Joseph P. Tracy 1919-9-13 5195 Humboldt Trinity River Valley. Near Willow Creek. 152 Comment
  UC212865  Digitaria sanguinalis Joseph P. Tracy 1919-9-13 5195 Humboldt Trinity River Valley near Willow Creek; Northern Coast Ranges, Trinity River Valley nr Willow Creek 152 Comment
  HSC70347  Dodecatheon hendersonii M. A. Baker 1980-6-7 1815 Humboldt Near Brush Mtn. 1128 Comment
  UC249505  Dodecatheon hendersonii Joseph P. Tracy 1922-4-30 5994 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1198689  Drymocallis glandulosa var. wrangelliana Joseph P. Tracy 1933-5-14 12172 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  UC1103659  Eleocharis bella Joseph P. Tracy 1931-9-7 9651 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC113110  Eleocharis obtusa LeRoy Abrams 1918-6-16 7158 Humboldt Willow creek. Comment
  SEINET200968  Eleocharis obtusa Joseph P. Tracy 1911-7-7 3401 Humboldt 3 miles northwest of junction of Willow Creek with Trinity River and near Beebe's Ranch. 914 Comment
  UC1103669  Eleocharis obtusa Joseph P. Tracy 1931-9-7 9652 Humboldt Trinity River Valley at Willow Creek 152 Comment
  UC183687  Eleocharis obtusa Joseph P. Tracy 1911-7-7 3401 Humboldt 3 mi NW of jct. of Willow Creek with Trinity River, at the meadows on mountain side Northern Coast Ranges 914 Comment
  CAS-BOT-BC197347  Elymus L. R. Abrams 1918-6-16 7137 Humboldt Willow Creek Comment
  HSC9713  Elymus glaucus D. E. Anderson 1965-5-15 3718 Humboldt Along Hwy. 96, 1.9 miles N of Willow Creek. Comment
  RSA183623  Elymus glaucus D. E. Anderson 1965-5-15 3718 Humboldt Along Hw. 96, 1.9 miles north of Willow Creek. Comment
  UC1103205  Elymus glaucus Joseph P. Tracy 1911-7-4 3291 Trinity Willow Creek Northern Coast Ranges ((tributary of Trinity River, Humboldt Co.), near its mouth) 243 Comment
  UC1196733  Elymus multisetus Joseph P. Tracy 1919-5-31 5160 Humboldt Willow Creek Northern Coast Ranges (gravel bar, near its mouth (creek is a tributary of Trinity River)) 152 Comment
  HSC16551  Epilobium canum subsp. latifolium D. E. Anderson 1963-9-21 2836 Humboldt 0.5 mi. E of Willow Creek Comment
  POM225511  Epilobium ciliatum subsp. ciliatum P. A. Munz 1936-8-12 14379 Humboldt Willow Creek Comment
  UC583053  Epilobium ciliatum subsp. ciliatum P. A. Munz 1936-8-12 14379 Humboldt Willow Creek Comment
  UC161070  Epilobium densiflorum Joseph P. Tracy 1911-7-8 3475 Humboldt near mouth of Willow Creek; Northern Coast Ranges, valley of Trinity River 152 Comment
  HSC63171  Epilobium septentrionale M. A. Baker 1979-7-7 1017 Humboldt 9.5 km E of Berry Summit along Hwy. 299, N bank of Willow Creek Comment
  UC503074  Equisetum hyemale subsp. affine Joseph P. Tracy 1927-8-7 8316 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  CAS-BOT-BC57793  Equisetum telmateia Joseph P. Tracy 1937-6-26 15361 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC667933  Equisetum telmateia subsp. braunii Joseph P. Tracy 1937-6-26 15361 Humboldt at Willow Creek Willow Creek; Trinity River Valley 152 Comment
  UC1103228  Eragrostis cilianensis Joseph P. Tracy 1931-9-7 9654 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley at Willow Creek 152 Comment
  HSC9769  Eragrostis hypnoides J. P. Tracy 1931-9-7 9663 Humboldt Trinity River Valley, Willow Creek Comment
  RSA10056  Eragrostis hypnoides Joseph P. Tracy 1931-9-7 9663 Humboldt Trinity River Valley, at Willow Creek. Comment
  SEINET200658 Image available Eragrostis hypnoides Joseph P. Tracy 1931-9-7 9663 Humboldt Damp sand bar along river Trinity River Valley at Willow Creek 152 Comment
  UC526900  Eragrostis hypnoides Joseph P. Tracy 1931-9-7 9663 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 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
  UC526901  Eragrostis mexicana subsp. virescens Joseph P. Tracy 1931-9-7 9653 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  UC1198999  Eremocarpus setiger Joseph P. Tracy 1911-7-8 3452 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  POM126125  Ericameria arborescens subsp. arborescens Joseph P. Tracy 1924-8-24 6827 Humboldt Trinity River Valley, near Willow Creek 183 Comment
  UC165069  Erigeron foliosus var. confinis Joseph P. Tracy 1911-7-6 3353 Humboldt Mountain slopes along road between Three Creeks and mouth of Willow Creek 762 Comment
  UC164848  Erigeron inornatus var. inornatus Joseph P. Tracy 1911-7-8 3442 Humboldt near mouth of Willow Creek (valley of Trinity River); Trinity River Valley 152 Comment
  UC1199400  Erigeron strigosus var. septentrionalis Joseph P. Tracy 1935-7-9 14057 Humboldt opposite Willow Creek; Trinity River Valley 152 Comment
  CAS-BOT-BC300278  Erigeron strigosus var. strigosus L. R. Abrams 1918-6-16 7174 Humboldt Willow Creek Comment
  UC1223135  Erigeron strigosus var. strigosus Joseph P. Tracy 1950-7-15 19046 Humboldt 1 mi n of mouth Willow Creek; Trinity River Comment
  UC249848  Erigeron strigosus var. strigosus Joseph P. Tracy 1923-6-27 6384 Humboldt Trinity River Valley, near Willow Creek Comment
  GH402776  Eriodictyon californicum J. P. Tracy 1911-7-6 3360 Unknown Mountain slopes along road between Three Creeks and mouth of Willow Creek 762 Comment
  UC162720  Eriodictyon californicum Joseph P. Tracy 1911-7-6 3360 Humboldt along road between Three Creeks and mouth of Willow Creek; Northern Coast Ranges, btw Three Creeks and Willow Creek 762 Comment
  CAS-BOT-BC259542  Eriogonum luteolum var. luteolum Mrs. E. C. Van Dyke 1931-6-30 s.n. Humboldt Willow Creek Comment
  UC1223126  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1944-7-3 17480 Humboldt Willow Creek Trinity River Valley, Willow Creek 152 Comment
  CAS-BOT-BC301389  Eriophyllum lanatum var. grandiflorum L. R. Abrams 1918-6-16 7154 Humboldt Willow Creek Comment
  RSA168816  Eriophyllum lanatum var. grandiflorum Joseph P. Tracy 1944-7-3 17480 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC1199139  Eriophyllum lanatum var. grandiflorum Joseph P. Tracy 1911-7-6 3366 1/2 Humboldt near Willow Creek (hill slopes at w side of Trinity River); Northern Coast Ranges, Trinity River 304 Comment
  UC1199143  Eriophyllum lanatum var. grandiflorum Joseph P. Tracy 1938-6-20 15972 Humboldt at Willow Creek; Trinity River Valley 152 Comment
  UC1223128  Eriophyllum lanatum var. grandiflorum Joseph P. Tracy 1944-7-3 17480 Humboldt at Willow Creek; Trinity River Valley 152 Comment
  UC1223134  Eriophyllum lanatum var. grandiflorum Joseph P. Tracy 1944-7-3 17480 Humboldt at Willow Creek; Trinity River Valley 152 Comment
  UC165849  Eriophyllum lanatum var. grandiflorum Joseph P. Tracy 1911-7-6 3366 Humboldt w side of river near Willow Creek; North Coast Ranges, Trinity River 304 Comment
  UC165896  Eriophyllum lanatum var. grandiflorum Joseph P. Tracy 1911-7-6 3366 1/2 Humboldt hillslopes at w side of river near Willow Creek; Northern Coast Ranges, Trinity River 304 Comment
  GH427099  Eriophyllum lanatum var. lanceolatum J. P. Tracy 1911-7-8 3441 Unknown Valley of Trinity River near mouth of Willow Creek 152 Comment
  UC165856  Eriophyllum lanatum var. lanceolatum Joseph P. Tracy 1911-7-8 3441 Humboldt about 0.5 mi above mouth Willow Creek (on s bank of river); Northern Coast Ranges, Valley of the Trinity River 152 Comment
  UC709446  Erodium brachycarpum Joseph P. Tracy 1941-4-11 16918 Humboldt Willow Creek Trinity River Valley 152 Comment
  SEINET200701 Image available Erythranthe cardinalis Joseph P. Tracy 1911-1 3480 Humboldt Tributary of Trinity River; along Willow Creek; near its mouth. 244 Comment
  CAS-BOT-BC133258  Erythronium L. R. Abrams 1918-6-15 7099 Humboldt Brannan Mt near Willow Creek 1371 Comment
  SEINET3121248 Image available Eucephalus glabratus Joseph P. Tracy 1919-1 5304 Humboldt Along road between Three Creeks and mouth of Willow Creek 914 Comment
  POM161488  Eucephalus tomentellus Joseph P. Tracy 1919-9-27 5304 Humboldt Mountain slopes along road between Three Creeks and mouth of Willow Creek. 915 Comment
  POM182421  Eucephalus tomentellus Joseph P. Tracy 1919-9-27 5304 Humboldt Mountain slopes along road between Three Creeks and mouth of Willow Creek. 915 Comment
  UC205151  Eucephalus tomentellus Joseph P. Tracy 1919-9-27 5304 Humboldt Mountain slopes along road between three Creeks and mouth of Willow Creek Willow Creek 914 Comment
  UC1199357  Euchiton sphaericus Joseph P. Tracy 1938-6-20 15974 Humboldt Willow Creek Trinity River Valley, Willow Creek 152 Comment
  UC1198978  Euphorbia spathulata Joseph P. Tracy 1935-5-12 13795 Humboldt Willow Creek; Trinity River Valley 152 Comment
  UC902141  Euphorbia spathulata Joseph P. Tracy 1948-6-20 18068 Humboldt Willow Creek; Trinity River Valley 152 Comment
  UC1199327  Euthamia occidentalis Joseph P. Tracy 1939-10-7 16506 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1223175  Euthamia occidentalis Joseph P. Tracy 1949-9-1 18538 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC70397  Festuca californica M. A. Baker 1980-6-7 1805 Humboldt Near Brush Mtn. 1128 Comment
  UC1103701  Festuca californica Joseph P. Tracy 1911-7-7 3426 Humboldt ridge n Willow Creek (between Willow and Campbell Creeks, near the summit); Northern Coast Ranges, Brannan Mountain 1219 Comment
  CAS-BOT-BC278304  Festuca californica subsp. californica L. R. Abrams 1918-6-15 7126 Humboldt Brannan Mt near Willow Creek 1371 Comment
  CAS-BOT-BC278421  Festuca idahoensis Joseph P. Tracy 1930-7-10 8867 Humboldt Northern Coast Ranges. Brannan Mountain 1219 Comment
  RSA728074  Festuca idahoensis Gary D. Wallace 1979-6-24 1862 Humboldt Brush Mountain Lookout, SW of the town of Willow Creek. 1216 Comment
  UC187103  Festuca idahoensis Joseph P. Tracy 1911-7-6 3338 Humboldt along road between Three Creeks and Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  UC525635  Festuca idahoensis Joseph P. Tracy 1930-7-10 8867 Humboldt Brannan Mountain North Coast Ranges 1219 Comment
  HSC70396  Festuca occidentalis M. A. Baker 1980-6-7 1808 Humboldt Near Brush Mtn. 1128 Comment
  UC1103725  Festuca occidentalis Joseph P. Tracy 1911-7-7 3415 Humboldt viz ridge n Willow Creek (between Willow and Campbell Creeks, near the summit); Northern Coast Ranges, Brannan Mountain 1219 Comment
  UCD66163  Festuca occidentalis A. H. Murphy 1950-5-10 Humboldt E. M. Cottrell Ranch, Roth road. Comment
  HSC73769  Festuca rubra M. A. Baker 1980-6-7 1778 Humboldt Near Brush Mtn. 1128 Comment
  UC205480  Foeniculum vulgare Joseph P. Tracy 1919-9-14 5221 Humboldt Trinity R. Valley near Willow Creek; Northern Coast Ranges, Trinity R. Valley 152 Comment
  HSC18610  Fragaria vesca D. E. Anderson 1965-5-1 3558 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  HSC18615  Fragaria vesca J. J. Wagoner 1965-5-1 25 Humboldt 6 mi. W of Willow Creek along Hwy. 299 Comment
  HSC73774  Fragaria vesca M. A. Baker 1980-6-7 1779 Humboldt Near Brush Mtn. 1128 Comment
  UC1198732  Fragaria vesca Joseph P. Tracy 1911-7-7 3430 Humboldt Brannan Mountain Northern Coast Ranges (viz ridge n of Willow Creek, between Willow Creek and Campbell Creek, near the summit) 1219 Comment
  GH425761  Frangula californica S. K. Harris & J. P. Tracy 1936-6-10 3254 Unknown Tracy's Ranch, Willow Creek Comment
  HSC18394  Frangula californica P. W. Shields May 1955 Humboldt 2 mi N of Willow Creek Comment
  HSC27127  Frangula californica J. P. Smith, J. O. Sawyer 1973-2-10 5841 Humboldt 2.7 mi. W of Hwy. 96 on Brannan Mtn. Road, N of Willow Creek 366 Comment
  UCD39995  Frangula californica Rodney Gale Myatt 1971-9-21 1212 Trinity About 1 mi. west of the town of Willow Creek. 426 Comment
  CAS-BOT-BC52730  Frangula californica subsp. californica Doris K. Kildale 1928-10-7 6754 Humboldt Trinity River at mouth of Willow Creek Comment
  CAS-BOT-BC52732  Frangula californica subsp. californica L. R. Abrams 1918-6-16 7138 Humboldt Willow Creek Comment
  CAS-BOT-BC52733  Frangula californica subsp. californica L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek Road Comment
  CAS-BOT-BC52739  Frangula californica subsp. californica Doris K. Kildale 1926-8-15 2511 Humboldt Willow Creek Flat 152 Comment
  CAS-BOT-BC52743  Frangula californica subsp. californica Doris K. Kildale 1927-7-3 3653 Humboldt Willow Creek Flat 152 Comment
  CAS-BOT-BC52744  Frangula californica subsp. californica Doris K. Kildale 1927-7-3 3652 Humboldt Willow Creek Flat 152 Comment
  SBBG26931  Frangula californica subsp. californica D. K. Kildale 1927-7-3 Humboldt Willow Crk flat on Trinity River 152 Comment
  A425967  Frangula californica subsp. occidentalis J. T. Howell 1937-7-31 13717 Unknown 5 miles east of Berry Summit Comment
  CAS-BOT-BC53402  Frangula californica subsp. occidentalis Doris K. Kildale 1925-8-13 1115 Humboldt Willow Creek Flat, Trinity River Valley 152 Comment
  CAS-BOT-BC53406  Frangula californica subsp. occidentalis John Thomas Howell 1937-7-31 13717 Humboldt 5 miles east of Berry Summit Comment
  CAS-BOT-BC217694  Fraxinus latifolia Joseph P. Tracy 1928-4-22 8414 Humboldt Willow Creek, Trinity River Valley 152 Comment
  GH401210  Fraxinus latifolia J. P. Tracy 1939-5-6 16279 Unknown Lack Pond; in Trinity River Valley, opposite mouth of Willow Creek 152 Comment
  UC1173690  Fraxinus latifolia Joseph P. Tracy 1939-5-6 16279 Humboldt opposite mouth of Willow Creek; Trinity River Valley, Lack Pond 152 Comment
  UC162719  Fraxinus latifolia Joseph P. Tracy 1911-7-7 3377 Humboldt 3 mi nw junction of Willow Creek with Trinity River (and near Beebe's Ranch); Northern Coast Ranges 914 Comment
  UC562731  Fraxinus latifolia Joseph P. Tracy 1928-4-22 8414 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC906695  Fraxinus latifolia Joseph P. Tracy 1941-3-26 16814 Humboldt opposite mouth of Willow Creek; Trinity River Valley, Lack Pond 152 Comment
  HSC16382  Fuchsia magellanica var. discolor T. M. Mingo May 1965 Humboldt About 3 mi. N of College Cove Comment
  HSC71493  Galium bolanderi M. A. Baker 1980-6-7 1797 Humboldt Near Brush Mtn. 1128 Comment
  PASA46  Galium bolanderi Frank W. Peirson 1932-7-7 Humboldt Willow Creek Comment
  UC169002  Galium bolanderi Joseph P. Tracy 1911-7-6 3361 Humboldt mountain slopes along road between Three Creeks and mouth of Willow Creek; Northern Coast Ranges 762 Comment
  HSC69762  Galium divaricatum Thomas W. Nelson, Jane P. Nelson 1977-9-4 3746 Humboldt Willow Creek Comment
  JEPS6495  Galium parisiense Joseph P. Tracy 1911-7-4 3278 Humboldt near mouth of Willow Creek; Northern Coast Ranges, valley of Trinity River 152 Comment
  UC169006  Galium parisiense Joseph P. Tracy 1911-7-4 3278 Humboldt near mouth of Willow Creek; Northern Coast Ranges, valley of Trinity River 152 Comment
  UC602539  Galium parisiense Joseph P. Tracy 1911-7-4 3278 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  HSC70361  Galium porrigens var. porrigens Gail Newton 1980-6-7 142 Humboldt Near Brush Mtn. 1128 Comment
  UC169021  Galium trifidum Joseph P. Tracy 1911-7-7 3370 Humboldt three mi nw junction of Willow Creek and Trinity River (near Beebe's Ranch, meadows on mt. side); Northern Coast Ranges 914 Comment
  UC169000  Galium triflorum Joseph P. Tracy 1911-7-5 3314 Humboldt near its mouth Willow Creek (tributary of Trinity River); Northern Coast Ranges 243 Comment
  CAS-BOT-BC200581  Garrya buxifolia L. R. Abrams 1918-6-15 7109 Humboldt Brannan Mt near Willow Creek 1371 Comment
  CAS-BOT-BC182168  Garrya fremontii Joseph P. Tracy 1932-3-6 9773 Humboldt Trinity River Valley at Willow Creek 152 Comment
  CAS-BOT-BC182169  Garrya fremontii Henry M. Pollard 1946-9-1 s.n. Humboldt Near Willow Creek, Orleans region Comment
  CAS-BOT-BC182173  Garrya fremontii Joseph P. Tracy 1939-9-10 16499 Humboldt Trinity River Valley at Willow Creek 152 Comment
  CAS-BOT-BC182213  Garrya fremontii Doris K. Kildale 1926-8-15 2525 Trinity Willow Creek Flat, Trinity River Valley 152 Comment
  GH401849  Garrya fremontii J. P. Tracy 1939-9-10 16499 Unknown Trinity River Valley, at Willow Creek 152 Comment
  JEPS66732  Garrya fremontii Joseph P. Tracy 1939-1-14 16184 Humboldt Willow Creek; Trinity River Valley 152 Comment
  OBI14160  Garrya fremontii Joseph P. Tracy 1939-1-14 16184 b Humboldt Trinity River Valley, at Willow crk Comment
  OBI14161  Garrya fremontii Joseph P. Tracy 1939-1-14 16184 a Humboldt Trinity River Valley, at Willow crk Comment
  RSA152673  Garrya fremontii Joseph P. Tracy 1939-1-14 16184 b Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  RSA152691  Garrya fremontii Joseph P. Tracy 1939-1-14 16184 a Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC1225767  Garrya fremontii Joseph P. Tracy 1939-1-14 16184 b Humboldt Willow Creek; Trinity River Valley 152 Comment
  UC1225768  Garrya fremontii Joseph P. Tracy 1939-1-14 1618 a Humboldt Willow Creek; Trinity River Valley 152 Comment
  UC502980  Garrya fremontii Joseph P. Tracy 1932-3-6 9773 Humboldt Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC630638  Garrya fremontii Joseph P. Tracy 1939-9-10 16499 Humboldt Willow Creek; Trinity River Valley 152 Comment
  UCD121162  Garrya fremontii Joseph P. Tracy 1939-1-14 16184 a Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UCD121163  Garrya fremontii Joseph P. Tracy 1939-1-14 16184 b Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CAS-BOT-BC58922  Gaultheria shallon L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek Road Comment
  RSA309623  Gaultheria shallon W. Wisura 1983-9-2 3930 Humboldt 6 mi W of Willow Creek, at East Fork campground, along Hwy. 299 Comment
  UC1197404  Geranium dissectum Joseph P. Tracy 1911-7-5 3331 Humboldt near Mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  UC1197395  Geranium molle Joseph P. Tracy 1911-7-9 3463 Humboldt near Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  UC1198956  Geranium molle Joseph P. Tracy 1937-5-17 15293 Humboldt Willow Creek Trinity River Valley 152 Comment
  JEPS86009  Gilia tricolor subsp. tricolor Joseph P. Tracy 1938-5-1 15733 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC906683  Gilia tricolor subsp. tricolor Joseph P. Tracy 1943-5-9 17419 1/2 Humboldt at Willow Creek Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC266491  Githopsis diffusa L. R. Abrams 1918-6-16 7176 Humboldt Willow Creek Comment
  UC162686  Glechoma hederacea Joseph P. Tracy 1911-7-7 3382 Humboldt 3 mi nw Willow Creek junction with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  UC187282  Glyceria elata Joseph P. Tracy 1911-7-7 3372 Humboldt 3 mi nw Willow Creek junction with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  UC187286  Glyceria elata Joseph P. Tracy 1911-7-7 3372 Humboldt 3 mi nw Willow Creek junction with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  POM126108  Glyceria striata Joseph P. Tracy 1911-7-7 3372 Humboldt 3 miles northwest of junction of Willow Creek with Trinity River, and near Beebe's Ranch. 915 Comment
  UC1199056  Glycyrrhiza lepidota Joseph P. Tracy 1935-5-30 13913 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC164842  Gnaphalium palustre Joseph P. Tracy 1911-7-7 3383 Humboldt 3 m nw of junction with Trinity River Willow Creek (at meadow on mountainside, near Beebs Ranch); Northern Coast Ranges, , Trinity River 914 Comment
  RSA381800  Goodyera oblongifolia Jane Turner, Francis M. Ball 1962-7-10 1141 Humboldt East Fork Willow Creek Forest Camp, Hwy 299 ca. 5 mi. W of Willow Creek in Six Rivers National Forest. 457 Comment
  POM182422  Hazardia whitneyi var. discoidea Joseph P. Tracy 1919-9-27 5304 Humboldt Mountain slopes along road between Three Creeks and mouth of Willow Creek. 915 Comment
  HSC44613  Hemitomes congestum R. York 1978-6-5 190 Humboldt 12 mi. up Waterman Ridge Rd. off of Hwy. 299. Bulk Collection 123 610 Comment
  HSC70841  Hemizonella minima M. A. Baker 1980-6-7 1788 Humboldt Near Brush Mtn. 1128 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
  UC1199420  Hesperevax acaulis var. robustior Joseph P. Tracy 1937-5-31 15322 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley 152 Comment
  UC161074  Hesperolinon micranthum Joseph P. Tracy 1911-7-6 3356 Humboldt along road between Three Creeks and Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  HSC5313  Heterotheca oregona D. E. Anderson 1963-9-21 2837 Humboldt 1/2 mi. E of Willow Creek Comment
  CAS-BOT-BC420723  Heuchera micrantha var. diversifolia L. R. Abrams 1918-6-16 7148 Humboldt Willow Creek Comment
  CAS-BOT-BC420724  Heuchera micrantha var. diversifolia L. R. Abrams 1918-6-16 7150 Humboldt Willow Creek Comment
  CAS-BOT-BC312399  Hieracium albiflorum L. R. Abrams 1918-6-16 7149 Humboldt Willow Creek Comment
  SJSU2550  Hieracium albiflorum H. L. Buckalew 1962-7-2 Humboldt junction of Willow Cr & E Fork Willow Cr on Hwy 299 Comment
  UC1199462  Hieracium nudicaule Joseph P. Tracy 1911-7-6 3363 Humboldt along road between Three Creeks and Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  SEINET200705  Hierochloe occidentalis Joseph P. Tracy 1931-4-26 9342 Humboldt Willow Creek Canyon 610 Comment
  UC526828  Hierochloe occidentalis Joseph P. Tracy 1926-2-28 7382 Humboldt Willow Creek Canyon Northern Coast Ranges 304 Comment
  UC187268  Holcus lanatus Joseph P. Tracy 1911-7-7 3389 Humboldt three mi nw junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges, nw jct Willow Creek w/Trinity River 914 Comment
  CAS-BOT-BC149903  Holodiscus discolor L. R. Abrams 1918-6-16 7147 Humboldt Willow Creek Comment
  GH354933  Holodiscus discolor J. P. Tracy 1911-7-5 3293 Unknown Valley of Trinity River near mouth of Willow Creek 152 Comment
  UC1198703  Holodiscus discolor Joseph P. Tracy 1911-7-6 3362 Humboldt along road between Three Creeks and Mouth of Willow Creek, Northern Coast Ranges Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  UC1198704  Holodiscus discolor Joseph P. Tracy 1911-7-5 3293 Humboldt near mouth of Willow Creek (Northern Coast Ranges, Valley of Trinity River); Northern Coast Ranges, Valley of Trinity River 152 Comment
  UCD39992  Holodiscus discolor Rodney Gale Myatt 1971-9-21 1215 Trinity About 1 mi. west of the town of Willow Creek. 426 Comment
  UC187305  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1911-7-7 3392 Humboldt three mi nw of junction of Willow Creek with Trinity River (near Beese's Ranch); Northern Coast Ranges, Trinity River 914 Comment
  UC526706  Hordeum murinum subsp. leporinum Joseph P. Tracy 1925-5-17 6978 Humboldt Willow Creek Northern Coast Ranges, , Willow Creek (Trinity River Valley) 152 Comment
  UC420712  Hypericum formosum var. scouleri Franklin P. Nutting 1894-7-25 Lassen Willow Creek northern CA Comment
Read comments
Jul 3 2013
  CAS-BOT-BC401232  Hypericum perforatum L. R. Abrams 1918-6-16 7192 Humboldt Willow Creek Comment
  CAS-BOT-BC401234  Hypericum perforatum Mrs. E. C. Van Dyke 1931-6-30 s.n. Humboldt Willow Creek Comment
  UC1198402  Hypericum perforatum Joseph P. Tracy 1933-7-3 12640 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  UC165829  Hypericum perforatum Joseph P. Tracy 1911-7-9 3478 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC668258  Hypericum perforatum Joseph P. Tracy 1933-7-3 12641 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  UC668259  Hypericum perforatum Joseph P. Tracy 1937-4-3 15244 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  CAS-BOT-BC206849  Iliamna latibracteata Carl Purdy 1938-8-1 s.n. Humboldt Willow Creek Comment
  HSC13902  Iris tenuissima E. Andreuccetti 1964-5-2 37 Humboldt 50 yds. from Ruby Creek on Hwy. 299 Comment
  HSC67518  Iris tenuissima J. P. Smith, J. O. Sawyer 1976-5-2 8620 Humboldt 3.7 mi. N of junction with Hwy. 299 on Hwy. 96 61 Comment
  HSC70346  Iris tenuissima M. A. Baker 1980-6-7 1816 Humboldt Near Brush Mtn. 287 Comment
  UC1152088  Juncus articulatus Joseph P. Tracy 1927-8-7 8310 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC183659  Juncus occidentalis Joseph P. Tracy 1911-7-7 3398 Humboldt 3 mi nw junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  UC183768  Juncus occidentalis Joseph P. Tracy 1911-7-7 3369 Humboldt 3 mi nw junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  CHSC103507  Juncus xiphioides Peter F. Zika 2009-6-16 24501 Humboldt Outer North Coast Ranges. West shore of Trinity River, near boat ramp, N end of town of Willow Creek. 120 Comment
  GH365760  Keckiella corymbosa S. K. Harris, C. C. Harris & J. P. Tracy 1941-9-1 6977 Unknown Cliffs along Trinity River near Willow Creek Comment
  HSC59856  Keckiella corymbosa M. A. Baker 1979-7-7 1018 Humboldt 9.5 km E of Berry Summit along Hwy. 299, N bank of Willow Creek Comment
  CAS-BOT-BC237834  Keckiella lemmonii Joseph P. Tracy 1930-7-25 8883 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  GH365797  Keckiella lemmonii F. W. Pennell & J. P. Tracy 1940-7-7 26089 Unknown Route 299, south of Willow Creek 182 Comment
  GH365799  Keckiella lemmonii V. Rattan 1883-06-01 - 1883-07-01 Unknown Willow Creek Comment
  JEPS10900  Keckiella lemmonii Joseph P. Tracy 1930-7-25 8883 Humboldt Willow Creek; Trinity River Valley 152 Comment
  NY790332  Keckiella lemmonii F. W. Pennell 1940-7-7 26089 Humboldt Route 299. South of Willow Creek. 182.9 Comment
  UC577411  Keckiella lemmonii Joseph P. Tracy 1930-7-25 8883 Humboldt Willow Creek; Trinity River Valley 152 Comment
  JEPS11333  Kickxia elatine Joseph P. Tracy 1934-6-22 13246 Humboldt Willow Creek; Trinity River Valley 152 Comment
  UC1222816  Kickxia elatine Joseph P. Tracy 1951-7-14 19623 Humboldt near Willow Creek (borders of Lack Pond); Lack Pond Comment
  UC582472  Kickxia elatine Joseph P. Tracy 1934-6-22 13246 Humboldt Willow Creek; Trinity River Valley 152 Comment
  HSC104295  Kopsiopsis strobilacea Samantha E. Andres 2016-4-9 2 Trinity Grays Falls Campground; ~1 mi. on the trail from the boat ramp parking lot to the campground Comment
  UC1196122  Kopsiopsis strobilacea Road Maintenace Crew May 1943 Humboldt Willow Creek Canyon on Trinity Highway. 762 Comment
  UC302178  Lactuca biennis Joseph P. Tracy 1926-7-18 7746 Humboldt near South Fork Trinity River; Northern Coast Ranges, Trinity River Valley, Kirkham Creek 182 Comment
  UC1223072  Lactuca serriola Joseph P. Tracy 1949-8-8 18402 Humboldt at Willow Creek (in Frank Graham's orchard); Trinity River Valley 152 Comment
  UC1223228  Lactuca serriola Joseph P. Tracy 1949-8-8 18403 Humboldt at Willow Creek (Frank Graham's orchard); Trinity River Valley 152 Comment
  UC1223224  Lapsana communis Joseph P. Tracy 1944-7-3 17482 Humboldt Graham's Peach Orchard, along road near old house, at Willow Creek Trinity River Valley, Willow Creek 152 Comment
  UC1199131  Lasthenia californica subsp. californica Joseph P. Tracy 1922-4-30 6028 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1112278  Lathyrus torreyi R. E. Nelson 1956-7-3 193 Humboldt 1.5 mi s Brush Mountain (in vicinity of Salyer); Six Rivers National Forest, Salyer 792 Comment
  HSC23457  Lathyrus tracyi D. E. Anderson 1965-5-1 3561 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  HSC2129  Lathyrus vestitus subsp. bolanderi Frances Oldridge 1946-1 Humboldt Willow Creek Comment
  UC1116217  Lepidium strictum Joseph P. Tracy 1946-5-4 17433 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC226526  Leptosiphon acicularis Doris K. Kildale 1926-4-25 1800 Humboldt Willow Creek Flat 152 Comment
  HSC73816  Leptosiphon ciliatus Gail Newton 1980-6-7 119 Humboldt Near Brush Mtn. 1128 Comment
  CAS-BOT-BC341824  Lessingia nemaclada Joseph P. Tracy 1937-9-5 15681 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  HSC5934  Lessingia nemaclada J. P. Tracy 1937-9-5 15681 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC176859  Lessingia nemaclada Joseph P. Tracy 1911-7-8 3445 Humboldt near mouth Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  UC581779  Lessingia nemaclada Joseph P. Tracy 1937-9-5 15681 Humboldt at Willow Creek; Trinity River Valley 152 Comment
  RSA10128  Leymus triticoides Joseph P. Tracy 1929-6-3 8601 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  SEINET200642 Image available Leymus triticoides J. P. Tracy 1929-6-3 8601 Humboldt Trinity River Valley at Willow Creek 152 Comment
  UC1103208  Leymus triticoides Joseph P. Tracy 1929-7-21 8645 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  UC526800  Leymus triticoides Joseph P. Tracy 1929-6-3 8601 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1198231  Lilium rubescens Joseph P. Tracy 1911-7-7 3419 Humboldt Brannan Mountain Northern Coast Ranges (viz ridge n of Willow Creek, between Willow Creek and Campbell Creek, near the summit) 1219 Comment
  CHSC19733  Limnanthes douglasii D. E. Anderson 1965-5-8 3634 Humboldt About 4 miles east of Berry Summit, along Hw. 299. Roadside ditch. Comment
  UC1198575  Linanthus bicolor Joseph P. Tracy 1933-7-3 12636 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC582589  Lindernia dubia var. dubia Joseph P. Tracy 1931-9-7 9649 Humboldt Willow Creek; Trinity River Valley 152 Comment
  GH422753  Linnaea borealis var. longiflora J. P. Tracy 1911-7-12 3521 Unknown Mountain slopes along road between three creeks and mouth of Willow Creek 914 Comment
  UC169339  Linnaea borealis var. longiflora Joseph P. Tracy 1911-7-12 3521 Humboldt mountain slopes along road between Three Creeks and mouth of Willow Creek (at Three Creeks); Northern Coast Ranges, bwt Three Creeks and Willow Creek mou 914 Comment
  JEPS19995  Lipocarpha aristulata Joseph P. Tracy 1931-9-7 9650 B Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  UC668019  Lipocarpha aristulata Joseph P. Tracy 1931-9-7 9650 c Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  UC668020  Lipocarpha aristulata Joseph P. Tracy 1931-9-7 9650 B Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  JEPS19999  Lipocarpha micrantha Joseph P. Tracy 1931-9-7 9650 A Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  HSC7384  Lipocarpha occidentalis J. P. Tracy 1931-9-7 9650 Humboldt Trinity River Valley, Willow Creek 152 Comment
  CAS-BOT-BC36150  Lithocarpus densiflorus var. densiflorus L. B. Kildale 1931-8-9 s.n. Humboldt [Threc] Creeks on Willow Creek road Comment
  UC1225788  Lithocarpus densiflorus var. echinoides Joseph P. Tracy 1948-9-20 18224 Humboldt Willow Creek Canyon; along Trinity Highway 457 Comment
  UC1196490  Lithophragma affine Joseph P. Tracy 1941-3-26 16819 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  UC1196501  Lithophragma affine Joseph P. Tracy 1921-4-30 6015 Humboldt Trinity River Valley near Willow Creek (Northern Coast Ranges); , Trinity River Valley, nr Willow Creek 152 Comment
  UC667095  Lithophragma affine Joseph P. Tracy 1933-5-14 12174 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  UC667092  Lithophragma campanulatum Joseph P. Tracy 1934-4-15 13179 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  HSC20226  Lithophragma heterophyllum D. E. Anderson 1965-5-8 3649 Humboldt About 3 mi. N of Willow Creek along rd. on E side of Trinity River. Comment
  HSC73961  Lithophragma heterophyllum Gail Newton 1980-6-7 130 Humboldt Near Brush Mtn. 1128 Comment
  RSA183524  Lithophragma heterophyllum D. E. Anderson 1965-5-8 3649 Humboldt 3 miles N of Willow Creek along road on E side of Trinity River. Comment
  JEPS20909  Logfia gallica Joseph P. Tracy 1935-5-30 13914 Humboldt Willow Creek Trinity River Valley, Willow Creek 152 Comment
  UC1199426  Logfia gallica Joseph P. Tracy 1934-7-1 13278 Humboldt Willow Creek Trinity River Valley, Willow Creek 152 Comment
  UC582504  Logfia gallica Joseph P. Tracy 1935-5-30 13914 Humboldt Willow Creek, Trinity River Valley, Willow Creek 152 Comment
  RSA728076  Lolium perenne Gary D. Wallace 1979-6-24 1860 Humboldt Near Brush Mountain Lookout, SW of the town of Willow Creek. 1216 Comment
  HSC65515  Lomatium ciliolatum var. ciliolatum M. A. Baker 1980-6-7 1776 Humboldt Near Brush Mtn. 1128 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
  HSC73958  Lomatium nudicaule Gail Newton 1980-6-7 125 Humboldt Near Brush Mtn. 1128 Comment
  CAS-BOT-BC211198  Lomatium tracyi Joseph P. Tracy 1930-7-10 8869 Humboldt Brannan Mountain 1219 Comment
  CAS-BOT-BC211199  Lomatium tracyi Joseph P. Tracy 1930-7-10 8869 Humboldt Brannan Mountain 1219 Comment
  GH424306  Lomatium tracyi J. P. Tracy 1930-7-10 8869 Unknown Brannan Mountain 1219 Comment
  JEPS14247  Lomatium tracyi Joseph P. Tracy 1930-7-10 8869 Humboldt Northern Coast Ranges, Brannan Mt. 1219 Comment
  UC1197149  Lomatium tracyi Joseph P. Tracy 1933-7-9 12650 Humboldt Brannan Mt. Northern Coast Ranges, Brannan Mt. 1066 Comment
  UC647479  Lomatium tracyi Joseph P. Tracy 1930-7-10 8869 Humboldt Brannan Mt. 1219 Comment
  UC1197146  Lomatium triternatum var. triternatum Joseph P. Tracy 1930-7-10 8875 Humboldt Northern Coast Ranges, Brannan Mt. 1066 Comment
  UC162919  Lomatium utriculatum Joseph P. Tracy 1911-7-7 3374 Humboldt 3 mi. n.w. junction of Willow Creek w/ Trinity R. (at meadows on mt. side, and near Beebe's Ranch); Northern Coast Ranges 914 Comment
  JEPS12868  Lonicera ciliosa Joseph P. Tracy 1921-6-19 5836 Humboldt viz. ridge n Willow Creek (between Willow and Campbell Creeks); Northern Coast Ranges, Brannan Mountain 944 Comment
  JEPS12869  Lonicera ciliosa Joseph P. Tracy 1921-10-16 5876 Humboldt viz. ridge n Willow Creek (between Willow and Campbell Creeks); Northern Coast Ranges, Brannan Mountain 944 Comment
  POM161636  Lonicera ciliosa Joseph P. Tracy 1921-6-19 5836 Humboldt Brannan Mountain; viz. ridge north of Willow Creek, between Willow and Campbell creeks; North Coast Ranges. Comment
  CAS-BOT-BC240476  Lonicera hispidula Mrs. E. C. Van Dyke 1931-6-30 s.n. Humboldt Willow Creek Comment
  CAS-BOT-BC240477  Lonicera hispidula Doris K. Kildale 1927-7-3 3641 Humboldt Willow Creek Flat 152 Comment
  UC1239554  Lonicera hispidula var. vacillans Joseph P. Tracy 1911-7-9 3469 Humboldt near mouth Willow Creek; Northern Coast Ranges, Trinity River 152 Comment
  UC602569  Lonicera hispidula var. vacillans Joseph P. Tracy 1928-7-1 8479 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1197307  Lotus humistratus Joseph P. Tracy 1929-4-28 8546 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  UC495724  Lotus humistratus Joseph P. Tracy 1929-4-28 8547 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1197297  Lotus micranthus Joseph P. Tracy 1911-7-7 3435 Humboldt viz ridge n of Willow Creek (between Willow and Campbell Creeks, near the summit); Northern Coast Ranges, Brannan Mountain 1219 Comment
  UC160993  Lotus nevadensis var. nevadensis Joseph P. Tracy 1911-7-6 3358 Humboldt between Three Creeks and Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  UC594244  Lotus purshianus var. purshianus S. K. Harris and J. P. Tracy 1936-6-10 3249 Humboldt Tracy's Ranch Willow Creek Comment
  UC1196933  Ludwigia palustris Joseph P. Tracy 1931-9-7 9665 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, , Willow Creek 152 Comment
  UC503016  Lupinus albifrons Joseph P. Tracy 1929-4-28 8552 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC73959  Lupinus bicolor Gail Newton 1980-6-7 131 Humboldt Near Brush Mtn. 1128 Comment
  UC205479  Lupinus latifolius var. latifolius Joseph P. Tracy 1919-5-31 5174 Humboldt along Willow Creek ((Tributary of Trinity River) near its mouth); Northern Coast Ranges, Trinity River, along Willow Creek 152 Comment
  HSC23088  Luzula comosa D. E. Anderson 1965-5-1 3565 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  HSC73161  Luzula comosa M. A. Baker 1980-6-7 1802 Humboldt Near Brush Mtn. 1128 Comment
  JEPS67158  Luzula macrantha Joseph P. Tracy 1926-5-2 7446 Humboldt Near Ruby Creek, Willow Creek Canyon, Northern Coast Ranges, 609 Comment
  UC1152122  Luzula macrantha Joseph P. Tracy 1928-6-17 8449 Humboldt Willow Creek Canyon, along Trinity Highway Comment
  SEINET3151058  Luzula subsessilis D. E. Anderson 1965-5-1 3565 Humboldt along hwy 96, 1.9 mi. N of Willow Creek Comment
  UC162336  Lythrum hyssopifolia Joseph P. Tracy 1911-7-8 3471 Humboldt near mouth of Willow Creek (Northern Coast Ranges, Valley of Trinity River); Northern Coast Ranges, Valley of Trinity River 152 Comment
  UC505105  Lythrum hyssopifolia Joseph P. Tracy 1927-8-7 8321 Humboldt opposite mouth of Willow Creek (Lack Pond, in Trinity River Valley); Northern Coast Ranges, Trinity River Valley, Lack Pond 152 Comment
  CAS-BOT-BC342808  Madia elegans L. R. Abrams 1918-6-15 7120 Humboldt Brannan Mt near Willow Creek 1371 Comment
  HSC70362  Madia elegans Gail Newton 1980-6-7 124 Humboldt Near Brush Mtn. 1128 Comment
  HSC70360  Malacothrix floccifera Gail Newton 1980-6-7 141 Humboldt Near Brush Mtn. 1128 Comment
  RSA178549  Malus sylvestris Joseph P. Tracy 1950-4-23 18636 Humboldt Trinity River Valley, at Willow Creek. Comment
  UC1222316  Malus sylvestris Joseph P. Tracy 1950-4-23 18636 Humboldt Willow Creek; Trinity River Valley 152 Comment
  UC668145  Malva neglecta Joseph P. Tracy 1937-9-6 15320 Humboldt Trinity River Valley at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  HSC73820  Marah oregana Gail Newton 1980-6-7 135 Humboldt Near Brush Mtn. 1128 Comment
  UC249510  Marah oregana Joseph P. Tracy 1922-4-30 6035 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC505101  Marah oregana Joseph P. Tracy 1929-4-28 8543 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1197424  Medicago lupulina Joseph P. Tracy 1911-7-10 3493 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  HSC10337  Melica californica J. A. Waller 1965-5-2 31 Humboldt Along Hwy. 96 near Willow Creek. Comment
  RSA152371  Melica californica Joseph P. Tracy 1943-5-9 17418 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC1145138  Melica californica Joseph P. Tracy 1943-5-9 17418 Humboldt Willow Creek Trinity River Valley (Trinity River Valley) 152 Comment
  UCD87232  Melica californica Joseph P. Tracy 1943-5-9 17418 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  HSC70380  Melica geyeri M. A. Baker 1980-6-7 1795 Humboldt Near Brush Mountain. 1128 Comment
  CAS-BOT-BC281320  Melica harfordii David D. Keck 1948-7-2 6005 Humboldt E side Rocky Ridge, E of Berry's summit, 4.1 miles W of Willow Creek, near boundary of Six Rivers National Forest 457 Comment
  CAS-BOT-BC281321  Melica harfordii David D. Keck 1948-7-2 6005 Humboldt E side Rocky Ridge, E of Berry's summit, 4.1 miles W of Willow Creek, near boundary of Six Rivers National Forest 457 Comment
  CAS-BOT-BC281323  Melica harfordii L. R. Abrams 1918-6-16 7156 Humboldt Willow Creek Comment
  UC1103754  Melica harfordii Joseph P. Tracy 1941-7-5 16968 Humboldt Willow Creek; Trinity River Valley 152 Comment
  UC1103756  Melica harfordii Joseph P. Tracy 1919-5-31 5172 Humboldt Willow Creek Northern Coast Ranges, Trinity River (hill slopes at w side of Trinity River) 152 Comment
  UCD87500  Melica harfordii Freed W. Hoffman 1946-5-24 1718 Humboldt Willow Creek. Comment
  UCD88639  Melica subulata A. H. Murphy 1950-1 s.n. Humboldt E. M. Cottrell Ranch. Comment
  UC1239689  Mentha spicata Joseph P. Tracy 1933-10-22 13104 Humboldt Trinity River Valley opposite mouth of Willow Creek Lack Pond; Northern Coast Ranges, Trinity River Valley oppos Willow Cre 152 Comment
  UC213509  Mentha spicata Joseph P. Tracy 1919-9-14 5207 Humboldt borders Lack Pond (Trinity River Valley near Willow Creek); Northern Coast Ranges, Trinity River Valley nr Willow Creek 152 Comment
  UC175982  Microseris laciniata subsp. leptosepala Joseph P. Tracy 1911-7-7 3402 Humboldt three mi nw of junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  CAS-BOT-BC349238  Microseris nutans L. R. Abrams 1918-6-15 7124 Humboldt Brannan Mt near Willow Creek 1371 Comment
  HSC73770  Microseris nutans M. A. Baker 1980-6-7 1777 Humboldt Near Brush Mtn. 1128 Comment
  UC1196771  Mimulus alsinoides Joseph P. Tracy 1924-4-27 6646 Humboldt East Fork of Willow Creek Northern Coast Ranges, Willow Creek Canyon 457 Comment
  UC1196777  Mimulus cardinalis Joseph P. Tracy 1921-9-4 5955 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC162578  Mimulus inodorus Joseph P. Tracy 1911-7-7 3409 Humboldt 3 mi nw of junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  UC162580  Mimulus layneae Joseph P. Tracy 1911-7-8 3443 Humboldt near mouth Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  UC162709  Mimulus microphyllus Joseph P. Tracy 1911-7-7 3367 Humboldt 3 mi nw of junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  UC249670  Minuartia cismontana Joseph P. Tracy 1922-4-30 5991 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  CAS-BOT-BC388625  Minuartia douglasii Doris K. Kildale 1926-4-25 1801 Humboldt Willow Creek Flat 152 Comment
  HSC70389  Minuartia douglasii Gail Newton 1980-6-7 138 Humboldt Near Brush Mtn. 1128 Comment
  HSC70382  Moehringia macrophylla M. A. Baker 1980-6-7 1798 Humboldt Near Brush Mtn. 1128 Comment
  UC229833  Mollugo verticillata Joseph P. Tracy 1921-10-16 5972 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  CAS-BOT-BC220258  Monardella sheltonii L. R. Abrams 1918-6-16 7183 Humboldt Willow Creek Comment
  CAS-BOT-BC318614  Monardella villosa L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek road. Comment
  UC162959  Monardella villosa subsp. villosa Joseph P. Tracy 1911-7-9 3476 Humboldt Near Willow Creek west side of river; Northern Coast Ranges, Trinity River 182 Comment
  HSC44611  Monotropa hypopitys R. York 1978-6-5 189 Humboldt 12 mi. up Waterman Ridge Rd. off of Hwy. 299. Bulk Collection 121 610 Comment
  UC161061  Montia diffusa Joseph P. Tracy 1911-7-7 3404 Humboldt 3 mi nw of junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  CAS-BOT-BC445164  Montia parvifolia L. R. Abrams 1918-6-16 7202 Humboldt Willow Creek Comment
  UC1103784  Muhlenbergia filiformis Joseph P. Tracy 1931-9-7 9656 Humboldt on sand bar along river Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  UC582561  Myosotis discolor Joseph P. Tracy 1937-5-17 15298 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  JEPS70791  Myosotis verna Joseph P. Tracy 1937-5-17 15297 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  UC582609  Myosotis verna Joseph P. Tracy 1937-5-17 15297 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  CAS-BOT-BC60345  Nasturtium officinale Doris K. Kildale 1926-5-2 1901 Humboldt Willow Creek Flat. 152 Comment
  UC582694  Navarretia intertexta Joseph P. Tracy 1937-6-26 15363 Humboldt Willow Creek Trinity River Valley 152 Comment
  GH403740  Navarretia linearifolia J. P. Tracy 1911-7-6 3365 Unknown Mountain slopes along road between Three Creeks and mouth of Willow Creek 762 Comment
  JEPS69509  Navarretia linearifolia subsp. linearifolia Joseph P. Tracy 1930-7-10 8864 Humboldt Brannan Mountain Northern Coast Ranges, Brannan Mountain 1219 Comment
  UC907952  Navarretia linearifolia subsp. linearifolia Joseph P. Tracy 1930-7-10 8864 Humboldt Brannan Mountain Northern Coast Ranges, Brannan Mountain 1219 Comment
  JEPS70472  Navarretia squarrosa Joseph P. Tracy 1921-8-21 5935 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1198527  Navarretia squarrosa Joseph P. Tracy 1927-8-7 8328 Humboldt Willow Creek Trinity River Valley 152 Comment
  JEPS7595  Nemacladus capillaris Joseph P. Tracy 1930-7-10 8865 Humboldt Brannan Mt. 1219 Comment
  SEINET3812470 Image available Nemacladus capillaris Joseph P. Tracy 1930-7-10 8865 Humboldt Brannan Mt. 1219 Comment
  UC602566  Nemacladus capillaris Joseph P. Tracy 1930-7-10 8865 Humboldt Brannan Mt. 1219 Comment
  CHSC19477  Nemophila heterophylla D. E. Anderson 1965-5-8 3650 Humboldt About 3 miles north of Willow Creek along road on east side of Trinity River. Comment
  HSC13570  Nemophila heterophylla Doris K. Kildale 1926-4-25 1802 Humboldt Willow Creek Flat 152 Comment
  HSC99204  Nemophila heterophylla D. E. Anderson 1965-5-8 3650 Humboldt About 3 mi. N of Willow Creek along Rd. on E side of Trinity River Comment
  JEPS3218  Nemophila heterophylla Joseph P. Tracy 1937-5-17 15292 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  SEINET3156479  Nemophila heterophylla D. E. Anderson 1965-5-8 3650 Humboldt About 3 miles N of Willow Creek along road on E side of Trinity River. Comment
  UC1103810  Nemophila heterophylla Joseph P. Tracy 1922-4-30 5987 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  UC249522  Nemophila heterophylla Joseph P. Tracy 1922-4-30 5987 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  UC582718  Nemophila heterophylla Joseph P. Tracy 1937-5-17 15292 Humboldt Willow Creek , at Willow Creek (Trinity River Valley) 152 Comment
  HSC73815  Nemophila menziesii Gail Newton 1980-6-7 123 Humboldt Near Brush Mtn. 1128 Comment
  UC249525  Nemophila menziesii var. atomaria Joseph P. Tracy 1922-4-30 6026 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, , nr Willow Creek 152 Comment
  RSA114991  Nemophila parviflora var. parviflora E. K. Balls, Lee W. Lenz 1955-5-15 20731 Humboldt 1 mile west of Willow Creek along US Highway 299, Willow Creek to Arcata. 168 Comment
  UCD110212  Notholithocarpus densiflorus Joseph P. Tracy 1948-9-20 18224 Humboldt Willow Creek Canyon, along Trinity Highway. 457 Comment
  CAS-BOT-BC400074  Nuphar polysepala L. R. Abrams 1918-6-16 7160 Humboldt Willow Creek Comment
  CAS-BOT-BC142290  Oemleria cerasiformis L. R. Abrams 1918-6-16 7190 Humboldt Willow Creek Comment
  CAS-BOT-BC142291  Oemleria cerasiformis Joseph P. Tracy 1937-4-3 15249 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC142296  Oemleria cerasiformis Doris K. Kildale 1926-3-2 1862 Humboldt Willow Creek Flat, Trinity River Valley 152 Comment
  UC1222314  Oemleria cerasiformis Joseph P. Tracy 1951-6-21 19514 Humboldt opposite Willow Creek; Trinity Valley Comment
  UC666833  Oemleria cerasiformis Joseph P. Tracy 1935-7-9 14059 Humboldt Willow Creek; Trinity River Valley 152 Comment
  UC666834  Oemleria cerasiformis Joseph P. Tracy 1937-4-3 15249 Humboldt Willow Creek; Trinity River Valley 152 Comment
  UC666835  Oemleria cerasiformis Joseph P. Tracy 1937-4-3 15250 Humboldt Willow Creek; Trinity River Valley 152 Comment
  CAS-BOT-BC171605  Oenothera wolfii L. R. Abrams 1918-6-16 7168 Humboldt Willow Creek Comment
  UC1196945  Oenothera wolfii Joseph P. Tracy 1934-8-24 13598 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC902173  Oenothera wolfii Joseph P. Tracy 1949-8-8 18401 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1197455  Orobanche fasciculata Joseph P. Tracy 1911-7-7 3222 Humboldt Northern Coast Ranges. Brannan Mountain, viz. ridge north of Willow Creek, between Willow and Campbell Creeks, near Summit. Comment
  UC1197443  Orobanche uniflora subsp. occidentalis Mrs. Frank A. Graham 1921-4-1 Humboldt Northern Coast Ranges. Trinity River Valley, near Willow Creek. Comment
  UC1197451  Orobanche uniflora subsp. occidentalis Joseph P. Tracy 1922-4-30 6001 Humboldt Trinity River Valley, near Willow Creek. Comment
  A346929  Osmaronia cerasiformis J. P. Tracy 1937-4-3 15249 Unknown Trinity River Valley, at Willow Creek 152 Comment
  HSC22861  Osmorhiza purpurea D. E. Anderson 1965-5-1 3562 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  HSC73956  Osmorhiza purpurea Gail Newton 1980-6-7 133 Humboldt Near Brush Mtn. 1128 Comment
  HSC104035  Oxalis oregana E. R. Fyer 2015-3-19 7 Humboldt Six Rivers National Forest; along the East Fork of Willow Creek, off Hwy. 299 484 Comment
  HSC16708  Oxalis oregana D. E. Anderson 1963-3-1 2370 Humboldt E Fork Forest Camp, along E Fork Willow Creek. Comment
  UC526840  Panicum acuminatum var. acuminatum Joseph P. Tracy 1931-5-17 9427 Humboldt at Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC526841  Panicum acuminatum var. acuminatum Joseph P. Tracy 1927-8-7 8313 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  HSC10489  Panicum acuminatum var. fasciculatum J. P. Tracy 1931-5-17 9427 Humboldt Trinity River Valley, at Willow Creek. Comment
  UC183455  Panicum capillare Joseph P. Tracy 1911-7-7 3407 Humboldt three mi nw of junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges, near Beebe's Ranch 914 Comment
  RSA10048  Panicum miliaceum Joseph P. Tracy 1931-9-7 9639 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC526836  Panicum miliaceum subsp. miliaceum Joseph P. Tracy 1931-9-7 9639 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  HSC10502  Panicum oligosanthes var. scribnerianum J. P. Tracy 1932-6-14 10147 Humboldt Trinity River Valley, at Willow Creek. Comment
  UC526842  Panicum oligosanthes var. scribnerianum Joseph P. Tracy 1927-8-7 8314 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  UC526843  Panicum oligosanthes var. scribnerianum Joseph P. Tracy 1931-5-17 9428 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  HSC22030  Paxistima myrsinites R. W. Spjut 1971-5-22 1922 Humboldt 1/4 mi. NW of Johnson Prairie, 8 mi. W of Willow Creek 1067 Comment
  JEPS9618  Paxistima myrsinites Joseph P. Tracy 1933-4-30 6042 Humboldt ridge n. of Willow Creek between Willow and Campbell Creeks (Brannan Mt.); Brannan Mt. 914 Comment
  POM126156  Paxistima myrsinites Joseph P. Tracy 1922-4-30 6042 Humboldt Brannan Mountain. viz. ridge north of Willow Creek, between Willow and Campbell Creeks. 915 Comment
  UC249586  Paxistima myrsinites Joseph P. Tracy 1921-6-19 5835 Humboldt mt. slopes along rd. between Three Creeks and mouth of Willow Creek; Northern Coast Ranges, Three Creeks 670 Comment
  UC249593  Paxistima myrsinites Joseph P. Tracy 1922-4-30 6042 Humboldt ridge n. of Willow Creek between Willow Creek and Campbell Creek (Brannan Mt.); Northern Coast Ranges, Brannan Mt. 914 Comment
  HSC20926  Pedicularis densiflora D. E. Anderson 1965-5-1 3556 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  UC582556  Pedicularis densiflora Joseph P. Tracy 1937-4-3 15251 Humboldt Willow Creek; Trinity River Valley 152 Comment
  UC902220  Pedicularis densiflora Joseph P. Tracy 1941-3-26 16818 Humboldt at Willow Creek Willow Creek; Trinity River Valley 152 Comment
  HSC70388  Pentagramma triangularis Gail Newton 1980-6-7 143 Humboldt Near Brush Mtn. 1128 Comment
  CAS-BOT-BC71617  Pentagramma triangularis subsp. triangularis Doris K. Kildale 1927-7-3 3650 Humboldt Willow Creek Flat Comment
  UC162775  Pentagramma triangularis subsp. triangularis Joseph P. Tracy 1911-7-5 3315 Humboldt Willow Creek near its mouth Willow Creek; Northern Coast Ranges, tributary of Trinity River 243 Comment
  UC1197121  Perideridia kelloggii Joseph P. Tracy 1927-8-7 8315 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC419192  Persicaria maculosa L. R. Abrams 1918-6-16 7193 Humboldt Willow Creek Comment
  HSC6052  Petasites frigidus var. palmatus Eugene Andreuccetti 1964-5-2 35 Humboldt 5 mi. W of Willow Creek on Hwy. 299 Comment
  HSC70344  Phacelia heterophylla Gail Newton 1980-6-7 122 Humboldt Near Brush Mtn. 1128 Comment
  UC562574  Phacelia heterophylla subsp. virgata Joseph P. Tracy 1935-5-12 13794 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC162721  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1911-7-5 3317 Humboldt Willow Creek (tributary of Trinity River) Northern Coast Ranges (near its mouth) 304 Comment
  CAS-BOT-BC76561  Philadelphus lewisii L. R. Abrams 1918-6-16 7200 Humboldt Willow Creek Comment
  CAS-BOT-BC76562  Philadelphus lewisii L. R. Abrams 1918-6-16 7197 Humboldt Willow Creek Comment
  CAS-BOT-BC76565  Philadelphus lewisii Doris K. Kildale 1927-7-3 3634 Humboldt Willow Creek Flat 152 Comment
  CAS-BOT-BC76571  Philadelphus lewisii Doris K. Kildale 1926-8-15 2508 Humboldt Trinity River Valley - Willow Creek Flat 152 Comment
  LA97948  Philadelphus lewisii Jane Turner; Francis M. Ball 1962-7-10 SK&F- 1145 Humboldt East Fork Willow Creek Forest Camp, Six Rivers National Forest, highway 299 ca. 5 mi. W of Willow Creek 457 Comment
  UC161489  Philadelphus lewisii Joseph P. Tracy 1911-7-5 3318 Humboldt Willow Creek Northern Coast Ranges (near its mouth, creek is tributary of Trinity River) 304 Comment
  UC161560  Philadelphus lewisii Joseph P. Tracy 1911-7-5 3318 Humboldt Willow Creek Northern Coast Ranges (near its mouth, creek is a tributary of Trinity River) 304 Comment
  UC161563  Philadelphus lewisii Joseph P. Tracy 1911-7-5 3319 Humboldt Willow Creek Northern Coast Ranges (near mouth, creek is a tributary of Trinity River) 182 Comment
  UC902079  Philadelphus lewisii Joseph P. Tracy 1949-9-1 18534 Humboldt Willow Creek Trinity River Valley 152 Comment
  RSA728071  Phleum pratense Gary D. Wallace 1979-6-24 1865 Humboldt Brush Mountain Lookout, SW of the town of Willow Creek. 1216 Comment
  HSC65479  Phlox adsurgens M. A. Baker 1980-6-7 1806 Humboldt Near Brush Mtn. 1128 Comment
  UC1347189  Phlox adsurgens Alice Eastwood and John Thomas Howell 1937-6-24 4869 Humboldt 5 mi e Berry; Summit Comment
  UC162583  Phlox adsurgens Joseph P. Tracy 1911-7-7 3418 Humboldt viz ridge n of Willow Creek (between Willow Creek and Campbell Creek, near the summit); Northern Coast Ranges, Brannan Mountain 1219 Comment
  UC672850  Phoradendron juniperinum Joseph P. Tracy 1930-7-10 8770 Humboldt Brannan Mt. 1066 Comment
  UC1198130  Phoradendron villosum Joseph P. Tracy 1949-12-3 18599 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  CAS-BOT-BC140583  Physocarpus capitatus L. R. Abrams 1918-6-15 7129 Humboldt Brannan Mt near Willow Creek Comment
  UC162338  Physocarpus capitatus Joseph P. Tracy 1911-7-7 3394 Humboldt 3 mi nw of junction of Willow Creek with Trinity River (near Beebe's Ranch, at the meadows on mountain side); Northern Coast Ranges 914 Comment
  UC502912  Pinus ponderosa Joseph P. Tracy 1929-4-28 8541 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  CAS-BOT-BC72733  Pinus sabiniana Doris K. Kildale 1928-10-7 6753 Humboldt Willow Creek Flat - Trinity River Valley Comment
  HSC44656  Pityopus californicus M. A. Baker 1978-7-19 623 Humboldt Bulk Collection 136 Comment
  HSC45213  Pityopus californicus R. York 1978-7-15 Humboldt Road to Brush Mt., China Timber Sale. Bulk Collection 139 1067 Comment
  UC1197759  Pityopus californicus Joseph P. Tracy 1936-6-10 14915 Humboldt Willow Creek Canyon Northern Coast Ranges 609 Comment
  UC249518  Plagiobothrys nothofulvus Joseph P. Tracy 1922-4-30 6019 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  JEPS60975  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1935-5-30 13916 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC249519  Plagiobothrys tenellus Joseph P. Tracy 1922-4-30 5990 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1222346  Plantago lanceolata Joseph P. Tracy 1951-6-23 19512 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1196134  Plantago major Joseph P. Tracy 1931-9-7 9657 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC169004  Plectritis brachystemon Joseph P. Tracy 1911-7-7 3381 1/2 Humboldt 3 mi nw of junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  UC169005  Plectritis brachystemon Joseph P. Tracy 1911-7-7 3381 Humboldt 3 mi nw of junction of Willow Creek with Trinity River (and near Beebe's Ranch); Northern Coast Ranges 914 Comment
  HSC73817  Plectritis congesta Gail Newton 1980-6-7 121 Humboldt Near Brush Mtn. 1128 Comment
  UC1239576  Plectritis congesta Joseph P. Tracy 1922-4-30 6018 Humboldt near Willow Creek (Northern Coast Ranges, Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1145113  Poa annua Joseph P. Tracy 1937-5-17 15294 Humboldt Willow Creek; Trinity River Valley 152 Comment
  UC249671  Poa howellii Joseph P. Tracy 1922-4-30 6014 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UCD91113  Poa howellii Don Hagar 1956-5-24 s.n. Humboldt Brush Mountain. 5 to 6 miles southwest of Willow Creek, eastern part of county. Comment
  UCD91135  Poa howellii A. H. Murphy 1950-5-10 s.n. Humboldt E. M. Cottrell Ranch, on Roth Road. Comment
  UC249504  Poa secunda subsp. secunda Joseph P. Tracy 1922-4-30 6011 Humboldt near Willow Creek Trinity River Valley; Northern Coast Ranges 152 Comment
  CAS-BOT-BC167574  Polygala cornuta var. cornuta Joseph P. Tracy 1936-8-30 15182 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  JEPS27112  Polygala cornuta var. cornuta Joseph P. Tracy 1936-8-30 15182 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1198990  Polygala cornuta var. cornuta Joseph P. Tracy 1911-7-6 3348 Humboldt mountain slopes along road between Three Creeks and mouth of Willow Creek; Northern Coast Ranges 762 Comment
  UC165802  Polygala cornuta var. cornuta Joseph P. Tracy 1911-7-8 3447 Humboldt hill slopes at w side Trinity River (near Willow Creek); Northern Coast Ranges 152 Comment
  UC902121  Polygala cornuta var. cornuta Joseph P. Tracy 1946-7-28 17622 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC672975  Polygonum aviculare subsp. depressum Joseph P. Tracy 1940-10-15 16754 Humboldt Willow Creek Canyon, along Trinity Highway 792 Comment
  JEPS79956  Polygonum bolanderi Joseph P. Tracy 1921-8-21 5944 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC249657  Polygonum bolanderi Joseph P. Tracy 1921-8-21 5944 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1198083  Polygonum persicaria Joseph P. Tracy 1919-9-14 5203 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1103193  Polypogon interruptus Joseph P. Tracy 1927-8-7 8320 1/2 Humboldt opposite mouth of Willow Creek Lack Pond (in Trinity River Valley); Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  HSC1156  Polystichum imbricans D. E. Anderson 1963-9-21 2832 Humboldt 0.5 mi. E of Willow Creek Comment
  UCD39994  Polystichum imbricans subsp. curtum Rodney Gale Myatt 1971-9-21 1214 Trinity About 1 mi. west of the town of Willow Creek. 426 Comment
  CAS-BOT-BC76763  Polystichum imbricans subsp. imbricans L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek Road. Comment
  UC205456  Portulaca oleracea Joseph P. Tracy 1919-9-13 5194 Humboldt near Willows Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  JEPS394  Potamogeton foliosus Joseph P. Tracy 1927-8-7 8308 Humboldt Willow Creek; Trinity River Valley 152 Comment
  UC1116225  Potamogeton foliosus Joseph P. Tracy 1927-8-7 8308 Humboldt Willow Creek; Trinity River Valley 152 Comment
  JEPS62489  Prunella vulgaris var. lanceolata Joseph P. Tracy 1937-6-28 15370 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  UC162689  Prunella vulgaris var. lanceolata Joseph P. Tracy 1911-7-7 3380 Humboldt three mi nw junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges, nw jct Willow Cr with Trinity River 914 Comment
  UC577391  Prunella vulgaris var. lanceolata Joseph P. Tracy 1937-6-28 15370 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  UCLA49214  Prunella vulgaris var. lanceolata Joseph P. Tracy 1937-6-28 15370 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  CAS-BOT-BC159985  Prunus emarginata L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek road Comment
  A346754  Prunus virginiana var. demissa J. P. Tracy 1928-8-5 8493 Unknown Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC154785  Prunus virginiana var. demissa Mrs. R. M. Austin 1894-6-1 s.n. Humboldt Willow Creek Valley Comment
  UC1198773  Prunus virginiana var. demissa Joseph P. Tracy 1933-5-14 12176 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  UC492198  Prunus virginiana var. demissa Joseph P. Tracy 1927-5-14 8027 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  UC492199  Prunus virginiana var. demissa Joseph P. Tracy 1928-8-5 8493 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  CAS-BOT-BC356656  Pseudognaphalium californicum Joseph P. Tracy 1938-6-20 15971 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC357606  Pseudognaphalium stramineum Joseph P. Tracy 1937-6-26 15364 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC582511  Pseudognaphalium stramineum Joseph P. Tracy 1937-6-26 15364 Humboldt Willow Creek Trinity River Valley, Willow Creek 152 Comment
  HSC5708  Pseudognaphalium thermale J. P. Tracy 1938-8-14 16111 Humboldt Trinity River Valley at Willow Creek 152 Comment
  JEPS20483  Pseudognaphalium thermale Joseph P. Tracy 1938-8-14 16111 Humboldt Willow Creek Trinity River Valley, Willow Creek Comment
  UC604670  Pseudognaphalium thermale Joseph P. Tracy 1938-8-14 16111 Humboldt at Willow Creek Trinity River Valley, Willow Creek 152 Comment
  CAS-BOT-BC80107  Pseudotsuga menziesii Doris K. Kildale 1925-8-13 1122 Humboldt Willow Creek Flat, Trinity River Valley 152 Comment
  CAS-BOT-BC80112  Pseudotsuga menziesii Doris K. Kildale 1928-10-7 6756 Humboldt Trinity River at mouth of Willow Creek Comment
  UC902028  Pseudotsuga menziesii var. menziesii Joseph P. Tracy 1949-10-8 18584 Humboldt Trinity River Valley at Willow Creek Trinity River Valley, Willow Creek 152 Comment
  SEINET199671  Pteryxia terebinthina var. californica Joseph P. Tracy 1929-4-28 8549 Humboldt Trinity River Valley at Willow Creek. 152 Comment
  SEINET200759  Pteryxia terebinthina var. californica Joseph P. Tracy 1929-6-3 8600 Humboldt Trinity River Valley at Willow Creek. 152 Comment
  UC642279  Pteryxia terebinthina var. californica Joseph P. Tracy 1929-4-28 8549 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  JEPS19284  Pycnanthemum californicum Joseph P. Tracy 1931-9-7 9637 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  UC577346  Pycnanthemum californicum Joseph P. Tracy 1931-9-7 9637 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  JEPS58845  Pyrola aphylla W. L. Jepson 1902-7-13 2023 Humboldt Willow Creek to Hupa Comment
  UC162733  Pyrola picta Joseph P. Tracy 1911-7-7 3437 Humboldt Brannan Mountain, viz. Ridge North of Willow Creek, between Willow and Campbell Creeks near the Summit 1219 Comment
  CAS-BOT-BC62631  Quercus chrysolepis Joseph P. Tracy 1931-5-17 9413 Humboldt Trinity River Valley opposite Willow Creek 152 Comment
  CAS-BOT-BC62672  Quercus chrysolepis Doris K. Kildale 1926-8-15 2514 Humboldt Willow Creek Flat 152 Comment
  UC1196534  Quercus chrysolepis Joseph P. Tracy 1911-6-8 3446 Humboldt near Mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  UC503089  Quercus chrysolepis H. E. Parks and Joseph P. Tracy 1931-5-17 9413 Humboldt opposite Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UCD45385  Quercus chrysolepis Joseph P. Tracy; H. E. Parks 1931-5-17 9413 Humboldt Trinity River Valley opposite Willow Creek. 152 Comment
  HSC97543  Quercus garryana Todd Bouchier, Kathleen Gifford, Cameron Williams 1999-5-3 36 Humboldt 1.0 mi E of Hwy. 96 183 Comment
  UC249563  Quercus garryana Joseph P. Tracy 1922-4-30 6008 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  CAS-BOT-BC105168  Quercus kelloggii Doris K. Kildale 1928-10-7 6746 Humboldt Willow Creek Flat on Trinity River Comment
  UC1196357  Quercus kelloggii Joseph P. Tracy 1940-10-15 16780 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC502987  Quercus kelloggii Joseph P. Tracy 1929-4-28 8542 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  UC672858  Quercus kelloggii Joseph P. Tracy 1940-9-15 16723 Humboldt Willow Creek Trinity River Valley 152 Comment
  SBBG11822  Quercus vacciniifolia D. E. Breedlove 1961-7-4 647 Humboldt 7 mi W of Willow Crk on US Hwy 299 521 Comment
  UC162339  Ranunculus aquatilis var. capillaceus Joseph P. Tracy 1911-7-7 3395 Humboldt three mi nw junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  HSC18117  Ranunculus aquatilis var. diffusus D. E. Anderson 1965-5-15 3712 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  UC162916  Ranunculus occidentalis Joseph P. Tracy 1911-7-7 3406 Humboldt three mi nw junction of Willow Creek with Trinity River (near Beebe's Ranch, meadows on mountain side); Northern Coast Ranges 914 Comment
  UC249650  Ranunculus occidentalis Joseph P. Tracy 1922-4-30 5988 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  RSA32664  Rhamnus californica Doris K. Kildale 1927-7-3 s.n. Humboldt Willow Creek Flat. Comment
  RSA34322  Rhamnus californica Doris K. Kildale 1926-8-15 2511 Humboldt Willow Creek Flat Comment
  UC1197992  Rhamnus californica Joseph P. Tracy 1934-8-4 13556 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1197997  Rhamnus californica Joseph P. Tracy 1934-8-4 13555 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC668156  Rhamnus californica Joseph P. Tracy 1933-9-3 13062 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC870781  Rhamnus californica S. K. Harris and J. P. Tracy 1936-6-10 3254 Humboldt Tracy's Ranch Willow Creek Comment
  UC902204  Rhamnus californica Joseph P. Tracy 1942-8-30 17304 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC165815  Rhamnus californica subsp. californica Joseph P. Tracy 1911-7-4 3292 Humboldt near mouth of Willow Creek (tributary of the Trinity River); Northern Coast Ranges, Trinity River, Willow Creek 243 Comment
  RSA19036  Rhamnus californica subsp. occidentalis J. T. Howell 1937-7-31 13717 Humboldt 5 miles E of Berry Summit Comment
  UC1197998  Rhamnus crocea Joseph P. Tracy 1921-7-3 5844 Humboldt near mouth of Willow Creek (along Willow Creek, tributary of Trinity River); Trinity River, Willow Creek 152 Comment
  UC249597  Rhamnus ilicifolia Joseph P. Tracy 1921-9-4 5959 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  RSA8096  Rhamnus tomentella subsp. tomentella Doris K. Kildale 1928-10-7 6754 Humboldt Trinity River at mouth of Willow Creek Comment
  UC1197792  Rhododendron occidentale Joseph P. Tracy 1921-6-19 5837 Humboldt along road between Three Creeks and mouth of Willow Creek (above Koby's); Northern Coast Ranges 609 Comment
  UC162760  Rhododendron occidentale Joseph P. Tracy 1911-7-6 3340 Humboldt between Three Creeks and mouth of Willow Creek; Northern Coast Ranges 762 Comment
  GH380350  Ribes cruentum J. P. Tracy 1911-7-5 3309 Unknown Along Willow Creek near its mouth 152 Comment
  OBI14064  Ribes divaricatum var. klamathense Joseph P. Tracy 1941-3-26 16813 Humboldt Lack Pond; in Trinity River Valley, opposite mouth of Willow Creek Comment
  UC1225766  Ribes divaricatum var. pubiflorum Joseph P. Tracy 1941-3-26 16813 Humboldt opposite mouth Willow Creek (Lack Pond); Trinity River Valley 152 Comment
  RSA152409  Ribes inerme Joseph P. Tracy 1941-3-26 16813 Humboldt Lack Pond: in Trinity River Valley, opposite mouth of Willow Creek. 152 Comment
  SEINET200855 Image available Ribes inerme J. P. Tracy 1939-5-6 16281 Humboldt Lack Pond Trinity River Valley opposoite mouth of Willow Creek 152 Comment
  A380241  Ribes inerme var. klamathense J. P. Tracy 1937-4-3 15243 Unknown Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC168853  Ribes inerme var. klamathense Joseph P. Tracy 1937-4-3 15243 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC168854  Ribes inerme var. klamathense Joseph P. Tracy 1939-5-6 16281 Humboldt Lack Pond, in Trinity River Valley, opposite mouth of Willow Creek 152 Comment
  JEPS25431  Ribes inerme var. klamathense Joseph P. Tracy 1941-3-26 16813 Humboldt opposite mouth Willow Creek (Lack Pond); Trinity River Valley 152 Comment
  UC1198951  Ribes inerme var. klamathense Joseph P. Tracy 1935-5-30 13915 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC667072  Ribes inerme var. klamathense Joseph P. Tracy 1937-4-3 15243 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC667073  Ribes inerme var. klamathense Joseph P. Tracy 1939-5-6 16281 Humboldt opposite mouth Willow Creek (Lack Pond); Trinity River Valley 152 Comment
  UCD102260  Ribes inerme var. klamathense Joseph P. Tracy 1941-3-26 16813 Humboldt Lack Pond; in Trinity River Valley, opposite mouth of Willow Creek. 152 Comment
  CAS-BOT-BC173363  Ribes lobbii L. R. Abrams 1918-6-14 7091 Humboldt Three Creeks Comment
  UC161562  Ribes roezlii Joseph P. Tracy 1911-7-5 3309 Humboldt near mouth Willow Creek; Northern Coast Ranges, Trinity River 152 Comment
  CAS-BOT-BC198900  Ribes roezlii var. cruentum L. R. Abrams 1918-6-16 7198 Humboldt Willows Creek Comment
  HSC20349  Ribes roezlii var. cruentum Eugene Andreuccetti 1964-5-2 39 Humboldt 5 mi. from Willow Creek on Hwy. 299 Comment
  JEPS79967  Ribes roezlii var. cruentum Joseph P. Tracy 1930-7-25 8885 Humboldt Trinity River Valley at Willow Creek Trinity River Valley; Northern Coast Ranges, , Willow Creek 152 Comment
  SEINET3121271 Image available Ribes roezlii var. cruentum Joseph P. Tracy 1944-7-3 17481 Humboldt Trinity River Valley; Willow Creek 152 Comment
  UC1198939  Ribes roezlii var. cruentum Joseph P. Tracy 1935-3-8 13729 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1198943  Ribes roezlii var. cruentum Joseph P. Tracy 1927-3-27 7871 Humboldt East Fork of Willow Creek Northern Coast Ranges, Willow Creek Canyon 457 Comment
  UC4922509  Ribes roezlii var. cruentum Joseph P. Tracy 1930-7-25 8885 Humboldt Trinity River Valley at Willow Creek Trinity River Valley; Northern Coast Ranges, , Willow Creek 152 Comment
  UC902114  Ribes roezlii var. cruentum Joseph P. Tracy 1944-7-3 17481 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC166087  Rigiopappus leptocladus Joseph P. Tracy 1911-7-7 3405 Humboldt between Willow Creek and Campbell Creek (viz ridge n of Willow Creek near the summit); Northern Coast Ranges, Brannan Mountain 914 Comment
  UC495731  Robinia pseudoacacia Joseph P. Tracy 1932-5-17 10076 Humboldt Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC673061  Robinia pseudoacacia Joseph P. Tracy 1934-7-1 13277 Humboldt Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC13753  Romanzoffia californica Lincoln Constance, R. C. Rollins 1942-5-11 2870 Humboldt 3 mi. E of E Fork of Willow Creek Comment
  HSC26800  Romanzoffia californica Thomas W. Nelson 1971-4-24 404 Humboldt Willow Creek Comment
  JEPS1245  Romanzoffia californica Joseph P. Tracy 1924-4-27 6645 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 457 Comment
  POM265891  Romanzoffia californica Lincoln Constance, R. C. Rollins 1942-5-11 2879 Humboldt 3 miles east of East Fork of Willow Creek. Comment
  UC1239757  Romanzoffia californica Joseph P. Tracy 1935-5-12 13799 Humboldt along Trinity Hwy. Willow Creek Canyon 304 Comment
  UC552252  Romanzoffia californica Joseph P. Tracy 1924-4-27 6645 Humboldt Northern Coast Ranges, Willow Creek Canyon Willow Creek Canyon; Northern Coast Ranges, Willow Creek Canyon 457 Comment
  UC673227  Romanzoffia californica Lincoln Constance and Reed C. Rollins 1942-5-11 2870 Humboldt 3 mi. e. E. Fork Willow Creek; North Coast Ranges Comment
  UC906678  Romanzoffia californica Joseph P. Tracy 1943-5-9 17423 Humboldt along Trinity Hwy. Willow Creek Canyon (rock bluffs near Ruby Creek) 609 Comment
  CAS-BOT-BC74513  Rorippa curvisiliqua Joseph P. Tracy 1931-9-7 9667 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC1198278  Rorippa curvisiliqua Joseph P. Tracy 1931-9-7 9666 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 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
  UC205457  Rorippa nasturtium-aquaticum Joseph P. Tracy 1919-5-31 5169 Humboldt along Willow Creek (tributary of Trinity River) near its mouth Northern Coast Ranges, along Willow Creek 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
  CAS-BOT-BC147436  Rosa californica L. R. Abrams 1918-6-16 7161 Humboldt Willow Creek Comment
  CAS-BOT-BC146488  Rosa gymnocarpa L. R. Abrams 1918-6-15 7116 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  CAS-BOT-BC146496  Rosa gymnocarpa Doris K. Kildale 1927-7-3 3644 Humboldt Willow Creek Flat 152 Comment
  HSC19646  Rosa gymnocarpa D. E. Anderson 1965-5-15 3711 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  POM365829  Rosa gymnocarpa Jane Turner, F. M. Ball 1962-7-10 1143 Humboldt East Fork Willow Creek Forest Camp, Hwy 299 ca. 5 mi. W of Willow Creek in Six Rivers National Forest. 457 Comment
  SEINET200819  Rosa gymnocarpa Joseph P. Tracy 1911-7-7 3428 Humboldt Brannan Mountain ,viz. Ridge north of Willow Creek, between Willow and Campbell Creeks, near the summit 1219 Comment
  UC1541253  Rosa gymnocarpa H. E. Parks August 1933 Del Norte McNaught Place Smith River Comment
  UC162330  Rosa gymnocarpa Joseph P. Tracy 1911-7-7 3428 Humboldt Brannan Mountain Northern Coast Ranges (viz ridge n of Willow Creek, between Willow and Campbell Creeks, near summit) 1219 Comment
  CAS-BOT-BC148220  Rosa spithamea L. R. Abrams 1918-6-15 7102 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  CAS-BOT-BC148384  Rubus leucodermis Doris K. Kildale 1927-7-3 3662 Humboldt Willow Creek Flat 152 Comment
  CAS-BOT-BC148388  Rubus leucodermis L. R. Abrams 1918-6-16 7144 Humboldt Willow Creek Comment
  RSA46847  Rubus leucodermis Doris K. Kildale 1927-7-3 3662 Humboldt Willow Creek Flat. Comment
  UC162331  Rubus parviflorus Joseph P. Tracy 1911-7-7 3432 Humboldt between Willow Creek and Campbell Creek (viz. Ridge n of Willow Creek, near the summit); Northern Coast Ranges, Brannan Mountain, n Willow Creek 1219 Comment
  UC666863  Rubus parviflorus Joseph P. Tracy 1937-5-17 15299 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  UC902133  Rubus spectabilis Joseph P. Tracy 1948-5-15 17979 Humboldt along Trinity Highway (Willow Creek Canyon, East Fork Willow Creek); Willow Creek Canyon, East Fork Willow Creek 457 Comment
  UC492169  Rubus ursinus Joseph P. Tracy 1931-4-26 9339 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley at Willow Cr 152 Comment
  UCSC000212  Rumex aquaticus var. fenestratus Franklin P. Nutting 1894-7-25 s.n. Humboldt Willow Creek Comment
  UC672928  Rumex conglomeratus Joseph P. Tracy 1935-7-17 14097 Humboldt opposite mouth of Willow Creek; Trinity River Valley, Lack Pond 152 Comment
  UC1225804  Rumex crispus Joseph P. Tracy 1946-7-7 17609 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC162326  Rumex crispus Joseph P. Tracy 1911-7-7 3375 Humboldt 3 mi nw Willow Creek and Trinity River junction (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  CAS-BOT-BC434096  Rumex transitorius L. R. Abrams 1918-6-16 7165 Humboldt Willow Creek Comment
  UC229830  Sagina apetala Joseph P. Tracy 1922-4-30 6007 Humboldt Trinity R. Valley near Willow Creek; Northern Coast Ranges, Trinity R. Valley 152 Comment
  CAS-BOT-BC103817  Salix exigua Harold E. Parks; Joseph P. Tracy 1931-5-17 0967 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC103822  Salix exigua Harold E. Parks; Joseph P. Tracy 1931-5-17 0967 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  JEPS12968  Salix exigua Joseph P. Tracy 1931-9-7 9642 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  JEPS14753  Salix exigua Joseph P. Tracy 1932-6-14 10151 Humboldt at Willow Creek Trinity River Valley; Northern Coast Region 152 Comment
  POM214871  Salix exigua Carleton R. Ball 1932-5-17 1335 Humboldt Above Trinity River. 1 mile below bridge on Trinity Hwy. 152 Comment
  POM214872  Salix exigua Carleton R. Ball, Harold E. Parks, Joseph P. Tracy 1932-5-17 1336 Humboldt Above Trinity River. 1 mile below bridge on Trinity Hwy. 152 Comment
  POM220112  Salix exigua H. E. Parks, Joseph P. Tracy 1931-5-17 971 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  POM220141  Salix exigua H. E. Parks, Joseph P. Tracy 1931-5-17 975 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  POM220144  Salix exigua H. E. Parks, Joseph P. Tracy 1931-5-17 969 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  POM361045  Salix exigua Carleton R. Ball, Harold E. Parks, Joseph P. Tracy 1932-5-17 1335 Humboldt Above Trinity River. 1 mile below bridge on Trinity Hwy. 152 Comment
  RSA5652  Salix exigua H. E. Parks, Joseph P. Tracy 1931-5-17 971 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  SJSU219  Salix exigua C. R. Ball, H. E. Parks & J. P. Tracy 1932-5-17 1336 Humboldt above Trinity R, 1 mi below bridge on Trinity Highway 152 Comment
  UC490571  Salix exigua Joseph P. Tracy 1932-10-8 10868 Humboldt at Willow Creek Trinity R.; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC526710  Salix exigua H. E. Parks and Joseph P. Tracy 1934-7-25 11090 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges 152 Comment
  SJSU275  Salix exigua var. exigua H. E. Parks & J. P. Tracy 1931-5-17 967 Humboldt Mouth of Willow Cr at Trinity R 152 Comment
  HSC19943  Salix exigua var. hindsiana H. E. Parks, J. P. Tracy 1931-5-17 971 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  HSC19945  Salix exigua var. hindsiana C. R. Ball, H. E. Parks, J. P. Tracy 1932-5-17 1330 Humboldt Trinity River, near bridge on Trinity Hwy. 152 Comment
  HSC19946  Salix exigua var. hindsiana C. R. Ball, H. E. Parks, J. P. Tracy 1932-5-17 1332 Humboldt Trinity River, near bridge on Trinity Hwy. 152 Comment
  LA208691  Salix exigua var. hindsiana Carleton R. Ball; Harold E. Parks, Joseph P. Tracy 1932-5-17 1335 Humboldt above Trinity River; 1 mi below bridge on Trinity Hwy 152 Comment
  SBBG29091  Salix exigua var. hindsiana C. R. Ball, H. Parks, J. Tracy 1932-5-17 1335 Humboldt above Trinity River, 1 mi below bridge on Trinity Hwy 152 Comment
  SBBG29096  Salix exigua var. hindsiana C. R. Ball, H. Parks, J. Tracy 1932-5-17 1336 Humboldt above Trinity River, 1 mi above bridge on Trinity Hwy 152 Comment
  SBBG58913  Salix exigua var. hindsiana C. R. Ball, H. Parks, J. Tracy 1932-5-17 1336 Humboldt above Trinity River, 1 mi below bridge on Trinity Hwy 152 Comment
  SBBG58914  Salix exigua var. hindsiana H. E. Parks, J. P. Tracy 1931-5-17 971 Humboldt mouth of Willow Crk at Trinity River Comment
  SD989  Salix exigua var. hindsiana Harold E. Parks, Joseph P. Tracey 1931-5-17 971 Humboldt Mouth of Willow Creek at Trinity River 149 Comment
  UC1173615  Salix exigua var. hindsiana Joseph P. Tracy 1935-5-30 13912 Humboldt at Willow Creek Trinity R. Valley 152 Comment
  UC1196604  Salix exigua var. hindsiana Joseph P. Tracy 1935-5-12 13797 Humboldt Trinity R. Valley at Willow Creek Trinity R. Valley 152 Comment
  UC1196605  Salix exigua var. hindsiana Joseph P. Tracy, C. R. Ball, and H. E. Parks 1932-5-17 10096 Humboldt Trinity R. opposite Willow Creek; North Coast Ranges 152 Comment
  UC469443  Salix exigua var. hindsiana Joseph P. Tracy 1931-9-7 9642 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC469444  Salix exigua var. hindsiana Joseph P. Tracy 1931-9-7 9640 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC481299  Salix exigua var. hindsiana Harold E. Parks and Joseph P. Tracy 1931-5-17 968 Humboldt mouth of Willow Creek at Trinity R. 150 Comment
  UC481301  Salix exigua var. hindsiana Harold E. Parks and Joseph P. Tracy 1931-5-17 969 Humboldt mouth of Willow Creek at Trinity R. 150 Comment
  UC481302  Salix exigua var. hindsiana Harold E. Parks and Joseph P. Tracy 1931-5-17 970 Humboldt mouth of Willow Creek at Trinity R. 150 Comment
  UC481304  Salix exigua var. hindsiana Harold E. Parks and Joseph P. Tracy 1931-5-17 971 Humboldt mouth of Willow Creek at Trinity R. 150 Comment
  UC481312  Salix exigua var. hindsiana Harold E. Parks and Joseph P. Tracy 1931-5-17 975 Humboldt mouth of Willow Creek at Trinity R. 150 Comment
  UC490566  Salix exigua var. hindsiana Joseph P. Tracy 1932-6-14 10151 Humboldt at Willow Creek Trinity River valley; Northern Coast Ranges 152 Comment
  UC490567  Salix exigua var. hindsiana Joseph P. Tracy 1932-6-14 10149 Humboldt at Willow Creek Trinity River valley; Northern Coast Ranges 152 Comment
  UC512020  Salix exigua var. hindsiana C. R. Ball, H. E. Parks, and J. P. Tracy 1932-5-17 1337 Humboldt at Willow Creek (Graham Ranch) near its junction with Trinity R. 152 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
  UC512024  Salix exigua var. hindsiana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1335 Humboldt 1 mi below bridge on Trinity Hwy. (bank above Trinity R.) 152 Comment
  UC512026  Salix exigua var. hindsiana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1332 Humboldt near bridge on Trinity Hwy. (in ... channel of Trinity R.) 152 Comment
  UC512027  Salix exigua var. hindsiana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1331 Humboldt near bridge on Trinity Hwy. (in ... channel of Trinity R.) 152 Comment
  UC512028  Salix exigua var. hindsiana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1330 Humboldt near bridge on Trinity Hwy. Trinity R. 152 Comment
  UC526711  Salix exigua var. hindsiana H. E. Parks and Joseph P. Tracy 1934-7-25 11090 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  A382709  Salix exigua var. tenerrima H. E. Parks & J. P. Tracy 1931-5-17 0972 Unknown Mouth of Willow Creek at Trinity River Comment
  GH382708  Salix exigua var. tenerrima H. E. Parks & J. P. Tracy 1931-5-17 0972 Unknown Mouth of Willow Creek at Trinity River Comment
  A382895  Salix hindsiana H. E. Parks & J. P. Tracy 1931-5-17 0969 Unknown Mouth of Willow Creek at Trinity River Comment
  A383135  Salix hindsiana H. E. Parks & J. P. Tracy 1931-5-17 0971 Unknown Mouth of Willow Creek at Trinity River Comment
  CAS-BOT-BC104094  Salix hindsiana Harold E. Parks; Joseph P. Tracy 1931-5-17 0969 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC104095  Salix hindsiana Harold E. Parks; Joseph P. Tracy 1931-5-17 0971 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC104096  Salix hindsiana Harold E. Parks; Joseph P. Tracy 1931-5-17 0975 Humboldt Mouth of Willow Creek at Trinity River 150 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-BC104098  Salix hindsiana Harold E. Parks; Joseph P. Tracy 1931-5-17 0975 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC104099  Salix hindsiana Harold E. Parks; Joseph P. Tracy 1931-5-17 0969 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC104100  Salix hindsiana Harold E. Parks; Joseph P. Tracy 1931-5-17 0971 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC104101  Salix hindsiana Harold E. Parks; Joseph P. Tracy 1931-5-17 0968 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  GH382949  Salix hindsiana H. E. Parks & J. P. Tracy 1931-5-17 0968 Unknown Mouth of Willow Creek at Trinity River Comment
  GH382950  Salix hindsiana H. E. Parks & J. P. Tracy 1931-5-17 0969 Unknown Mouth of Willow Creek at Trinity River Comment
  GH382951  Salix hindsiana H. E. Parks & J. P. Tracy 1931-5-17 0970 Unknown Mouth of Willow Creek at Trinity River Comment
  GH382952  Salix hindsiana H. E. Parks & J. P. Tracy 1931-5-17 0971 Unknown Mouth of Willow Creek at Trinity River Comment
  GH382953  Salix hindsiana H. E. Parks & J. P. Tracy 1931-5-17 0975 Unknown Mouth of Willow Creek at Trinity River Comment
  GH383036  Salix hindsiana J. P. Tracy 1935-5-30 13912 Unknown Trinity River Valley, at Willow Creek 152 Comment
  UC1196550  Salix hookeriana Joseph P. Tracy 1946-6-15 17568 Humboldt at head of Willow Creek (Willow Creek Canyon along Trinity Hwy.); Willow Creek Canyon 822 Comment
  A384055  Salix lasiandra H. E. Parks & J. P. Tracy 1931-5-17 966 Unknown Mouth of Willow Creek at Trinity River Comment
  GH384124  Salix lasiandra H. E. Parks & J. P. Tracy 1931-5-17 966 Unknown Mouth of Willow Creek at Trinity River Comment
  LA208818  Salix lasiandra Harold E. Parks; Joseph P. Tracy 1931-5-17 966 Humboldt mouth of Willow Creek at Trinity River 150.0 Comment
  UC1196579  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1939-5-6 16280 Humboldt opposite mouth of Willow Creek Lack Pond; Trinity R. Valley 152 Comment
  UC1196583  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1941-3-26 16815 Humboldt opposite mouth of Willow Creek Lack Pond; Trinity River Valley 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
  UC481295  Salix lasiandra subsp. lasiandra Harold E. Parks and Joseph P. Tracy 1931-5-17 966 Humboldt mouth of Willow Creek at Trinity R. (banks of Willow Creek); Willow Creek 150 Comment
  UC481296  Salix lasiandra subsp. lasiandra Harold E. Parks and Joseph P. Tracy 1931-5-17 966 Humboldt mouth of Willow Creek at Trinity R. (banks of Willow Creek); Willow Creek 150 Comment
  UC519383  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1933-5-14 12179 Humboldt at Willow Creek bridge Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  CAS-BOT-BC125221  Salix lasiandra var. lasiandra Harold E. Parks; Joseph P. Tracy 1931-5-17 0966 Humboldt Mouth of Willow Creek at Trinity River, on banks of Willow Creek 150 Comment
  CAS-BOT-BC128193  Salix lasiandra var. lasiandra Harold E. Parks; Joseph P. Tracy 1931-5-17 966 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  SD1004  Salix lasiandra var. lasiandra Harold E. Parks, Joseph P. Tracy 1931-5-17 966 Humboldt Mouth of Willow Creek at Trinity River 149 Comment
  UC1196576  Salix lasiandra var. lasiandra Joseph P. Tracy 1941-3-26 16816 Humboldt opposite mouth of Willow Creek Lack Pond; Trinity R. Valley 152 Comment
  JEPS12948  Salix lasiolepis Joseph P. Tracy 1932-3-6 9776 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  JEPS12949  Salix lasiolepis Joseph P. Tracy 1932-3-6 9775 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  JEPS12956  Salix lasiolepis Joseph P. Tracy 1931-9-7 9643 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  LA208772  Salix lasiolepis Harold E. Parks; Joseph P. Tracy 1931-5-17 976 Humboldt mouth of Willow Creek at Trinity River 150.0 Comment
  SBBG57889  Salix lasiolepis H. E. Parks, J. P. Tracy 1931-5-17 976 Humboldt mouth of Willow Crk at Trinity River 150 Comment
  UC1196626  Salix lasiolepis Joseph P. Tracy 1935-7-9 14058 Humboldt Lack Pond Trinity River Valley (opposite mouth of Willow Creek) 152 Comment
  UC1196659  Salix lasiolepis Joseph P. Tracy 1932-5-17 10078 Humboldt Willow Creek North Coast Ranges, Trinity River 152 Comment
  UC1196660  Salix lasiolepis H. E. Parks and Joseph P. Tracy 1931-5-17 9414 Humboldt thicket near mouth of Willow Creek; Northern Coast Ranges, Willow Creek 152 Comment
  UC212997  Salix lasiolepis Joseph P. Tracy 1919-9-27 5302 Humboldt Willow Creek Northern Coast Ranges ((tributary of Trinity River), near its mouth) 152 Comment
  UC212998  Salix lasiolepis Joseph P. Tracy 1919-9-13 5197 Humboldt near Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC469427  Salix lasiolepis Joseph P. Tracy 1931-9-7 9628 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC469428  Salix lasiolepis Joseph P. Tracy 1931-9-7 9629 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC469429  Salix lasiolepis Joseph P. Tracy 1931-9-7 9643 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC469430  Salix lasiolepis Joseph P. Tracy 1931-9-7 9645 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC469434  Salix lasiolepis Joseph P. Tracy 1931-10-11 9715 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC469435  Salix lasiolepis Joseph P. Tracy 1931-10-11 9718 Humboldt near mouth Willow Creek; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  UC481313  Salix lasiolepis H. E. Parks and Joseph P. Tracy 1931-5-17 976 Humboldt mouth of Willow Creek at Trinity River 150 Comment
  UC481314  Salix lasiolepis Harold E. Parks and Joseph P. Tracy 1931-5-17 976 Humboldt mouth of Willow Creek at Trinity River 150 Comment
  UC481315  Salix lasiolepis H. E. Parks and Joseph P. Tracy 1931-5-17 976 Humboldt mouth of Willow Creek at Trinity River 150 Comment
  UC490551  Salix lasiolepis Joseph P. Tracy 1932-3-6 9776 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC490552  Salix lasiolepis Joseph P. Tracy 1932-3-6 9775 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC490553  Salix lasiolepis Joseph P. Tracy 1932-3-6 9774 Humboldt at mouth of Willow Creek; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC504031  Salix lasiolepis C. R. Ball, H. E. Parks, and J. P. Tracy 1932-5-17 1338 Humboldt near pond at Willow Creek (Graham Ranch) near junction with Trinity River Comment
  UC512017  Salix lasiolepis C. R. Ball, H. E. Parks, and J. P. Tracy 1932-5-17 1340 Humboldt near pond at Willow Creek (Graham Ranch) near junction with Trinity River Comment
  UC512018  Salix lasiolepis C. R. Ball, H. E. Parks, and J. P. Tracy 1932-5-17 1340 Humboldt near pond at Willow Creek (Graham Ranch) near junction with Trinity River 152 Comment
  UC519327  Salix lasiolepis Joseph P. Tracy 1933-5-14 12178 Humboldt mouth of Willow Creek Trinity River Valley 152 Comment
  UC519328  Salix lasiolepis Joseph P. Tracy 1933-5-14 12180 Humboldt Willow Creek, near county road bridge Trinity River Valley 152 Comment
  UC519329  Salix lasiolepis Joseph P. Tracy 1933-5-14 12181 Humboldt Willow Creek, near county road bridge Trinity River Valley 152 Comment
  UC519339  Salix lasiolepis Joseph P. Tracy 1933-5-14 12177 Humboldt Willow Creek Trinity River Valley (mouth) 152 Comment
  UC519345  Salix lasiolepis Joseph P. Tracy 1933-10-22 13102 Humboldt Lack Pond Trinity River Valley (opposite mouth of Willow Creek) 152 Comment
  A383863  Salix lasiolepis var. bigelovii H. E. Parks & J. P. Tracy 1931-5-17 0976 Unknown Mouth of Willow Creek at Trinity River Comment
  CAS-BOT-BC107298  Salix lasiolepis var. bigelovii Harold E. Parks; Joseph P. Tracy 1931-5-17 0976 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC107299  Salix lasiolepis var. bigelovii Harold E. Parks; Joseph P. Tracy 1931-5-17 0976 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  GH383849  Salix lasiolepis var. bigelovii H. E. Parks & J. P. Tracy 1931-5-17 0976 Unknown Mouth of Willow Creek at Trinity River Comment
  POM220140  Salix lasiolepis var. bigelovii H. E. Parks, Joseph P. Tracy 1931-5-17 976 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  POM220145  Salix lucida subsp. lasiandra H. E. Parks, Joseph P. Tracy 1931-5-17 966 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  SBBG29043  Salix lucida subsp. lasiandra H. E. Parks, J. P. Tracy 1931-5-17 966 Humboldt Willow Crk at Trinity River 150 Comment
  SBBG57828  Salix lucida subsp. lasiandra H. E. Parks, J. P. Tracy 1931-5-17 966 Humboldt banks of Willow Crk Comment
  A384269  Salix melanopsis H. E. Parks & J. P. Tracy 1931-5-17 974 Unknown Mouth of Willow Creek at Trinity River Comment
  A384593  Salix melanopsis H. E. Parks & J. P. Tracy 1931-5-17 967 Unknown Mouth of Willow Creek at Trinity River Comment
  CAS-BOT-BC125606  Salix melanopsis Harold E. Parks; Joseph P. Tracy 1931-5-17 0974 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC125607  Salix melanopsis Harold E. Parks 1931-10-15 01077 Humboldt Bishop Pine Lodge, Trinidad 75 Comment
  CAS-BOT-BC125608  Salix melanopsis Doris K. Kildale 1926-8-15 2516 Humboldt Willow Creek, flat in Trinity River Valley Comment
  CAS-BOT-BC125609  Salix melanopsis Joseph P. Tracy 1911-7-4 3295 Humboldt Along Willow Creek (Tributary of Trinity River) near its mouth 182 Comment
  CAS-BOT-BC125626  Salix melanopsis Harold E. Parks; Joseph P. Tracy 1931-5-17 0973 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC125627  Salix melanopsis Harold E. Parks; Joseph P. Tracy 1931-5-17 0972 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC125631  Salix melanopsis Harold E. Parks; Joseph P. Tracy 1931-5-17 0974 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC125632  Salix melanopsis Joseph P. Tracy 1931-9-7 9647 Humboldt Trinity River Valley, at Willow Creek 152 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-BC125640  Salix melanopsis Harold E. Parks; Joseph P. Tracy 1931-5-17 0972 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  GH384233  Salix melanopsis J. P. Tracy 1931-9-7 9646 Unknown Trinity River Valley, at Willow Creek 152 Comment
  GH384243  Salix melanopsis H. E. Parks & J. P. Tracy 1931-5-17 974 Unknown Mouth of Willow Creek at Trinity River Comment
  GH384260  Salix melanopsis J. P. Tracy 1931-9-7 9647 Unknown Trinity River Valley, at Willow Creek 152 Comment
  GH384592  Salix melanopsis H. E. Parks & J. P. Tracy 1931-5-17 967 Unknown Mouth of Willow Creek at Trinity River Comment
  HSC20034  Salix melanopsis H. E. Parks, J. P. Tracy 1931-5-17 972 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  HSC912  Salix melanopsis Doris K. Kildale 1926-8-15 2516 Humboldt Upper Willow Creek Flat 152 Comment
  JEPS12938  Salix melanopsis Joseph P. Tracy 1931-9-7 9646 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  JEPS12972  Salix melanopsis Joseph P. Tracy 1931-9-7 9644 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  JEPS14755  Salix melanopsis Joseph P. Tracy, C. R. Ball, and H. E. Parks 1932-5-17 10095 Humboldt Trinity River near Willow Creek; North Coast Ranges 152 Comment
  LA208878  Salix melanopsis Harold E. Parks; Joseph P. Tracy 1931-5-17 972 Humboldt mouth of Willow Creek at Trinity River 150.0 Comment
  LA208932  Salix melanopsis Harold E. Parks; Joseph P. Tracy 1931-5-17 967 Humboldt mouth of Willow Creek at Trinity River 150.0 Comment
  POM220111  Salix melanopsis H. E. Parks, Joseph P. Tracy 1931-5-17 974 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  POM220142  Salix melanopsis H. E. Parks, Joseph P. Tracy 1931-5-17 973 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  POM220143  Salix melanopsis H. E. Parks, Joseph P. Tracy 1931-5-17 972 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  SBBG28830  Salix melanopsis H. E. Parks, J. P. Tracy 1931-5-17 967 Humboldt mouth of Willow Crk at Trinity River 150 Comment
  SBBG57930  Salix melanopsis H. E. Parks, J. P. Tracy 1931-5-17 972 Humboldt mouth of Willow Crk at Trinity River 150 Comment
  SBBG57953  Salix melanopsis H. E. Parks, J. P. Tracy 1931-5-17 967 Humboldt mouth of Willow Crk at Trinity River 150 Comment
  SD914  Salix melanopsis Harold E. Parks, Joseph P. Tracy 1931-5-17 972 Humboldt Mouth of Willow Creek at Trinity River 149 Comment
  SD975  Salix melanopsis Harold E. Parks, Joseph P. Tracy 1931-5-17 967 Humboldt Mouth of Willow Creek at Trinity River, sandbars 149 Comment
  SJSU251  Salix melanopsis H. E. Parks & J. P. Tracy 1931-5-17 972 Humboldt mouth of Willow Cr at Trinity R 152 Comment
  UC1196575  Salix melanopsis Joseph P. Tracy 1931-9-7 9633 Humboldt Trinity R. Valley at Willow Creek bridge; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  UC162649  Salix melanopsis Joseph P. Tracy 1911-7-4 3295 Humboldt near its mouth Willow Creek; Northern Coast Ranges, Willow Creek - tributary of Trinity R 182 Comment
  UC162708  Salix melanopsis Joseph P. Tracy 1911-7-4 3295 Humboldt Willow Creek near mouth <of> Trinity R.; Northern Coast Ranges, Willow Creek - tributary of Trinity R 182 Comment
  UC469452  Salix melanopsis Joseph P. Tracy 1931-9-7 9641 Humboldt Trinity R. Valley at Willow Creek; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  UC469454  Salix melanopsis Joseph P. Tracy 1931-9-7 9634 Humboldt Trinity R. Valley at Willow Creek Bridge; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  UC469455  Salix melanopsis Joseph P. Tracy 1931-9-7 9644 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, , Willow Creek 152 Comment
  UC469456  Salix melanopsis Joseph P. Tracy 1931-9-7 9632 Humboldt Trinity R. Valley at Willow Creek Bridge; Northern Coast Ranges, Trinity R Valley, Willow Creek 152 Comment
  UC470452  Salix melanopsis Joseph P. Tracy 1931-9-7 9646 Humboldt Trinity R. Valley at Willow Creek; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  UC470453  Salix melanopsis Joseph P. Tracy 1931-9-7 9646 Humboldt Trinity R. Valley at Willow Creek; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  UC470454  Salix melanopsis Joseph P. Tracy 1931-9-7 9646 Humboldt Trinity R. Valley at Willow Creek; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  UC470456  Salix melanopsis Joseph P. Tracy 1931-9-7 9647 Humboldt Trinity R. Valley at Willow Creek; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  UC470457  Salix melanopsis Joseph P. Tracy 1931-9-7 9647 Humboldt Trinity R. Valley at Willow Creek; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  UC481297  Salix melanopsis Harold E. Parks and Joseph P. Tracy 1931-5-17 967 Humboldt mouth of Willow Creek at Trinity R.; Willow Creek 150 Comment
  UC481298  Salix melanopsis Harold E. Parks and Joseph P. Tracy 1931-5-17 967 Humboldt mouth of Willow Creek at Trinity R.; Willow Creek 150 Comment
  UC481305  Salix melanopsis Harold E. Parks and Joseph P. Tracy 1931-5-17 972 Humboldt mouth of Willow Creek at Trinity R.; Willow Creek 150 Comment
  UC481306  Salix melanopsis Harold E. Parks and Joseph P. Tracy 1931-5-17 972 Humboldt mouth of Willow Creek at Trinity R.; Willow Creek 150 Comment
  UC481307  Salix melanopsis Harold E. Parks and Joseph P. Tracy 1931-5-17 972 Humboldt mouth of Willow Creek at Trinity R.; Willow Creek 150 Comment
  UC481308  Salix melanopsis Harold E. Parks and Joseph P. Tracy 1931-5-17 973 Humboldt mouth of Willow Creek at Trinity R.; Willow Creek 150 Comment
  UC481309  Salix melanopsis Harold E. Parks and Joseph P. Tracy 1931-5-17 973 Humboldt mouth of Willow Creek at Trinity R.; Willow Creek 150 Comment
  UC481310  Salix melanopsis Harold E. Parks and Joseph P. Tracy 1931-5-17 974 Humboldt mouth of Willow Creek at Trinity R.; Willow Creek 150 Comment
  UC481311  Salix melanopsis Harold E. Parks and Joseph P. Tracy 1931-5-17 974 Humboldt mouth of Willow Creek at Trinity R.; Willow Creek 150 Comment
  UC490577  Salix melanopsis C. R. Ball, H. E. Parks and Joseph P. Tracy 1932-5-17 10095 Humboldt Trinity R. near Willow Creek; North Coast Ranges, Trinity R. 152 Comment
  UC512019  Salix melanopsis C. R. Ball, H. E. Parks, and J. P. Tracy 1932-5-17 1339 Humboldt pond at Willow Creek (Graham Ranch) near junction with Trinity R.; Willow Creek 152 Comment
  UCR143008  Salix melanopsis H. E. Parks, J. P. Tracy 1931-5-17 0967 Humboldt North Coast, mouth of Willow Creek at Trinity River 150 Comment
  GH384287  Salix melanopsis var. bolanderiana H. E. Parks & J. P. Tracy 1931-5-17 973 Unknown Mouth of Willow Creek at Trinity River Comment
  GH384296  Salix melanopsis var. bolanderiana J. P. Tracy 1911-7-4 3295 Unknown Along Willow Creek (Tributary of Trinity River) near its mouth 182 Comment
  RSA5651  Salix melanopsis var. tenerrima H. E. Parks, Joseph P. Tracy 1931-5-17 972 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  GH384532  Salix scouleriana J. P. Tracy 1935-3-8 13731 Unknown Willow Creek Canyon, along Trinity Highway 304 Comment
  JEPS12911  Salix scouleriana Joseph P. Tracy 1927-3-27 7846 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  JEPS14777  Salix scouleriana Joseph P. Tracy 1933-4-2 10956 Humboldt Willow Creek Canyon; Northern Coast Ranges, Willow Creek Canyon 304 Comment
  UC1173623  Salix scouleriana Joseph P. Tracy 1935-3-8 13731 Humboldt alont Trinity Hwy. Willow Creek Canyon 304 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
  UC470446  Salix scouleriana Joseph P. Tracy 1931-11-14 9755 Humboldt Trinity R. Valley at Willow Creek; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  UC470448  Salix scouleriana Joseph P. Tracy 1927-3-27 7846 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, , Willow Creek 152 Comment
  UC506351  Salix scouleriana Joseph P. Tracy 1933-4-2 10956 Humboldt Willow Creek Canyon; Northern Coast Ranges, Willow Creek Canyon 304 Comment
  CAS-BOT-BC126273  Salix sessilifolia H. E. Parks; Joseph P. Tracy 1934-7-25 11090 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC126275  Salix sessilifolia C. R. Ball; H. E. Parks; J. P. Tracy 1932-5-17 01337 Humboldt At Willow Creek, (Graham Ranch), near its junction with Trinity River 152 Comment
  POM220146  Salix sessilifolia H. E. Parks, Joseph P. Tracy 1931-5-17 967 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  HSC20133  Salix tracyi J. P. Tracy 1933-5-14 12178 Humboldt Trinity River Valley, mouth of Willow Creek 152 Comment
  SEINET4855902  Salix tracyi Unknown 1931-5-17 0976 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  CAS-BOT-BC235015  Sambucus L. R. Abrams 1918-6-16 7181 Humboldt Willow Creek Comment
  UC168949  Sambucus mexicana Joseph P. Tracy 1911-7-9 3465 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  HSC23089  Sanicula bipinnatifida D. E. Anderson 1965-5-1 3564 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  HSC23090  Sanicula crassicaulis D. E. Anderson 1965-5-1 3563 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  SEINET3157023  Sanicula crassicaulis D. E. Anderson 1965-5-1 3563 Humboldt along Highway 96, 1.9 miles north of Willow Creek Comment
  UC1197095  Sanicula graveolens Joseph P. Tracy 1926-5-2 7448 Humboldt near Ruby Creek (Northern Coast Ranges, Willow Creek Canyon); Northern Coast Ranges, Willow Creek Canyon 609 Comment
  JEPS79976  Saponaria officinalis Joseph P. Tracy 1929-7-21 8644 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  UC668103  Saponaria officinalis Joseph P. Tracy 1929-7-21 8644 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  UC1198881  Saxifraga californica Joseph P. Tracy 1922-4-30 6024 Humboldt Trinity River Valley, Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  UC1198890  Saxifraga integrifolia Joseph P. Tracy 1922-4-30 6000 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  UC249626  Saxifraga integrifolia Joseph P. Tracy 1922-4-30 6000 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  JEPS79978  Saxifraga marshallii Joseph P. Tracy 1941-3-26 16834 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  UC1198883  Saxifraga marshallii Joseph P. Tracy 1935-5-12 13800 Humboldt at East Fork Willow Creek, Willow Creek Canyon, along Trinity Highway Willow Creek; Willow Creek Canyon, East Fork Willow Creek 457 Comment
  UC1198884  Saxifraga marshallii Joseph P. Tracy 1924-4-27 6644 Humboldt Willow Creek Canyon, East Fork of Willow Creek Willow Creek Canyon; Northern Coast Ranges, , Willow Creek 457 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
  UC709459  Saxifraga marshallii Joseph P. Tracy 1941-3-26 16834 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  UC902010  Saxifraga marshallii Joseph P. Tracy 1948-5-15 17978 Humboldt Willow Creek Canyon, along Trinity Highway at the East Fork Willow Creek Canyon 457 Comment
  SEINET3411481 Image available Saxifraga mertensiana Joseph P. Tracy 1922-4-30 6009 Humboldt Mouth of South Fork of Trinity river 152 Comment
  UC902007  Saxifraga mertensiana Joseph P. Tracy 1941-4-11 16858 Humboldt Willow Creek Canyon, along Trinity Highway Willow Creek Canyon 304 Comment
  GH400961  Scutellaria antirrhinoides J. P. Tracy 1911-7-7 3399 Unknown Three miles northwest of junction of Willow Creek with Trinity River, and near Beebe's Ranch 914 Comment
  UC162687  Scutellaria antirrhinoides Joseph P. Tracy 1911-7-7 3399 Humboldt 3 mi nw of junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  HSC14401  Scutellaria tuberosa D. E. Anderson 1965-5-8 3644 Humboldt About 2 mi. N of Willow Creek on the road running along E side of Trinity River Comment
  RSA183621  Scutellaria tuberosa D. E. Anderson 1965-5-8 3644 Humboldt About 2 miles north of Willow Creek on road running along east side of Trinity River. Comment
  UC249516  Scutellaria tuberosa Joseph P. Tracy 1922-4-30 6005 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC79342  Sedum laxum subsp. flavidum D. K. Imper 1983-6-15 Humboldt Along Hwy. 299 S of Hwy, adjacent to swimming hole Comment
  UC1198843  Sedum laxum subsp. heckneri Joseph P. Tracy 1944-7-3 17488 Humboldt along Trinity Highway (Willow Creek Canyon); Willow Creek Canyon 304 Comment
  CAS-BOT-BC364021  Senecio integerrimus var. major Doris K. Kildale 1926-5-2 1896 Humboldt Willow Creek Flat 152 Comment
  HSC6119  Senecio integerrimus var. major D. E. Anderson 1965-5-8 3654 Humboldt About 3.5 mi. N of Willow Creek along road running along E side of Trinity River Comment
  UC1199241  Senecio integerrimus var. major Joseph P. Tracy 1938-5-1 15728 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1199236  Senecio sylvaticus Harold E. Parks and Joseph P. Tracy 1941-7-5 11491 Humboldt in woods near Coon Creek; Trinity River 152 Comment
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Jun 26 2012
  UC212874  Setaria pumila Joseph P. Tracy 1919-9-13 5193 Humboldt Trinity R. Valley near Willow Creek; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC1145167  Setaria viridis Joseph P. Tracy 1948-7-26 18078 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  UCD92873  Setaria viridis Joseph P. Tracy 1948-7-26 18078 Humboldt Trinity River Valley, at Willow Creek. Comment
  GH385027  Sidalcea malviflora subsp. nana V. Rattan 1883-05-01 - 1883-06-01 Unknown Willow Creek Comment
  HSC73819  Silene Gail Newton 1980-6-7 117 Humboldt Near Brush Mtn. 1128 Comment
  UC1198367  Silene antirrhina Joseph P. Tracy 1919-5-31 5168 Humboldt along Willow Creek ((Tributary of Trinity River) near its mouth); Northern Coast Ranges, along Willow Creek 152 Comment
  RSA183641  Silene californica D. E. Anderson 1965-5-15 3709 Humboldt Along Hw. 96, 1.9 miles north of Willow Creek. Comment
  UC161014  Silene californica Joseph P. Tracy 1911-7-9 3457 Humboldt along Willow Creek (tributary of Trinity River, near its mouth); Northern Coast Ranges, along Willow Creek 182 Comment
  UC1198358  Silene hookeri Joseph P. Tracy 1922-4-30 5999 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1198359  Silene hookeri Joseph P. Tracy 1911-7-7 3414 Humboldt between Willow and Campbell Creeks (near the summit Brannan Mountain, viz. ridge n of Willow Creek); Northern Coast Ranges, Brannan Mountain, n of Willow Creek 1219 Comment
  CAS-BOT-BC181231  Silene hookeri subsp. bolanderi L. R. Abrams 1918-6-15 7114 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  UCR40032  Silene hookeri subsp. bolanderi T. Jimerson 1983-5-26 s.n. Humboldt Six Rivers National Forest, Lower Trinitty Road; roadside bank on the road to Brush Mountain Lookout off Friday Ridge Road. (6N08) 1088 Comment
  CAS-BOT-BC389065  Silene laciniata subsp. californica Mrs. E. C. Van Dyke 1931-6-30 s.n. Humboldt Willow Creek Comment
  CAS-BOT-BC389071  Silene laciniata subsp. californica L. R. Abrams 1918-6-16 7187 Humboldt Willow Creek Comment
  HSC4164  Silene laciniata subsp. californica D. E. Anderson 1965-5-15 3709 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  UC1198792  Sisymbrium altissimum Joseph P. Tracy 1937-5-31 15319 Humboldt Trinity River Valley at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  UC492253  Sisymbrium altissimum Joseph P. Tracy 1932-5-17 10090 Humboldt Trinity River near Willow Creek; Northern Coast Ranges, Trinity River 152 Comment
  HSC73842  Solanum parishii Gail Newton 1980-6-7 137 Humboldt Near Brush Mtn. 1128 Comment
  UC1196157  Solanum sarrachoides Joseph P. Tracy 1940-10-15 16758 Humboldt Trinity River Valley at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  CAS-BOT-BC154206  Solanum umbelliferum L. Abrams 1918-6-16 7132 Humboldt Willow Creek Comment
  POM247118  Solidago californica Joseph P. Tracy 1937-9-5 15682 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CAS-BOT-BC364968  Solidago velutina subsp. californica Joseph P. Tracy 1937-9-5 15682 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC364971  Solidago velutina subsp. californica Joseph P. Tracy 1937-9-5 15682 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  HSC6179  Solidago velutina subsp. californica J. P. Tracy 1937-9-5 15682 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  LA203960  Solidago velutina subsp. californica Joseph P. Tracy; 1937-9-5 15682 Humboldt Trinty River Valley, at Willow Creek 152 Comment
  UC205149  Solidago velutina subsp. californica Joseph P. Tracy 1919-9-13 5189 Humboldt Valley of Trinity River near mouth Willow Creek; Northern Coast Ranges, Valley Trinity River near mouth Willo 152 Comment
  UC581768  Solidago velutina subsp. californica Joseph P. Tracy 1937-9-5 15682 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley 152 Comment
  JEPS18742  Soliva sessilis Joseph P. Tracy 1936-7-3 14852 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  UC1199285  Soliva sessilis Joseph P. Tracy 1919-5-31 5166 1/2 Humboldt Valley of Trinity River near mouth Willow Creek; Northern Coast Ranges, Valley of Trinity River, mouth Willow 152 Comment
  UC582629  Soliva sessilis Joseph P. Tracy 1936-6-3 14852 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  UC668080  Spergularia rubra Joseph P. Tracy 1936-6-3 14850 Humboldt Willow Creek Trinity River Valley 152 Comment
  GH345531  Spiraea douglasii S. K. Harris & J. P. Tracy 1936-6-10 3245 Unknown Tracy's Ranch, Willow Creek Comment
  UC666994  Spiranthes porrifolia Joseph P. Tracy 1937-6-26 15376 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1196406  Spiranthes romanzoffiana Joseph P. Tracy 1944-7-3 17487 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC577315  Stachys ajugoides var. rigida Joseph P. Tracy 1937-6-26 15362 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC161056  Stellaria media Joseph P. Tracy 1911-7-5 3313 Humboldt near mouth of Willow Creek (along Willow Creek tributary of Trinity River); Northern Coast Ranges, Trinity River 304 Comment
  UC1199363  Stephanomeria elata Joseph P. Tracy 1930-7-25 8880 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC70374  Stipa occidentalis var. californica M. A. Baker 1980-6-7 1781 Humboldt Near Brush Mtn. 1128 Comment
  GH422353  Streptanthus tortuosus F. W. Hoffman 1950-7-10 3434 Unknown Hoopa Indian Reservation on road from Willow Creek to Happy Camp 6.6 miles south of Klamath River Comment
  HSC70349  Streptanthus tortuosus M. A. Baker 1980-6-7 1812 Humboldt Near Brush Mtn. 1128 Comment
  UC1492818  Streptanthus tortuosus Freed W. Hoffman 1950-7-10 3434 Humboldt on road from Willow Creek to Happy Camp 6.6 mi s Klamath River; Hoopa Indian Reservation Comment
  UC1198800  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1932-5-17 10089 Humboldt river bar Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1198649  Swertia albicaulis var. nitida Joseph P. Tracy 1911-7-6 3359 Humboldt along road between Three Creeks and Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  JEPS26261  Synthyris reniformis Joseph P. Tracy 1926-2-28 7379 Humboldt Northern Coast Ranges, Willow Creek Canyon Willow Creek Canyon; Northern Coast Ranges, Willow Creek Canyon 457 Comment
  SEINET3816619  Tanacetum parthenium Joseph P. Tracy 1946-7-28 17624 Humboldt Head of willow creek Comment
  UC1223070  Tanacetum parthenium Joseph P. Tracy 1946-7-28 17624 Humboldt Head of Willow Creek Comment
  UC1223146  Taraxacum officinale Joseph P. Tracy 1948-5-15 17973 Humboldt Willow Creek Trinity River Comment
  A355471  Taxus brevifolia H. S. Reed 1938-7-27 192 Unknown east fork of Willow Creek, Humboldt County. Comment
Read comments
Oct 7 2017
  CAS-BOT-BC85208  Taxus brevifolia L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek Road Comment
  CAS-BOT-BC85217  Taxus brevifolia Doris K. Kildale 1929-2-12 6954 Humboldt Willow Creek Canyon Comment
  SBBG319  Taxus brevifolia H. and M. Dearing 1939-6-23 3691 Humboldt E fork of Willow Crk 609 Comment
  UC666679  Taxus brevifolia H. S. Reed 1938-7-27 192 Humboldt e fork Willow Creek Comment
  UC673060  Thermopsis gracilis Joseph P. Tracy 1937-5-31 15326 Humboldt rocky point at Ruby Creek (along Trinity Hwy); Willow Creek Canyon 518 Comment
  RSA728070  Thinopyrum intermedium Gary D. Wallace 1979-6-24 1866 Humboldt Brush Mountain Lookout, SW of the town of Willow Creek. 1216 Comment
  CHSC96779  Thlaspi montanum P. Haggard 2004-8-18 1285929 Humboldt North Coast Ranges. Friday Ridge Rd, Willow Creek. Comment
  CAS-BOT-BC88318  Thysanocarpus curvipes Doris K. Kildale 1926-4-25 1803 Humboldt Willow Creek Flat. 152 Comment
  UC229825  Thysanocarpus curvipes Joseph P. Tracy 1922-4-30 6032 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, , Willow Creek 152 Comment
  SBBG2855  Tiarella trifoliata var. unifoliata H. and M. Dearing 1939-5-15 3703 Humboldt E fork of Willow Crk 762 Comment
  HSC73841  Tonella tenella Gail Newton 1980-6-7 134 Humboldt Near Brush Mtn. 1128 Comment
  UC1051572  Torilis arvensis subsp. arvensis Joseph P. Tracy 1948-8-1 18081 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC169177  Toxicodendron diversilobum Joseph P. Tracy 1949-8-8 18404 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC902124  Toxicodendron diversilobum Joseph P. Tracy 1949-8-8 18404 Humboldt Trinity R. Valley at Willow Creek Trinity R. Valley, Willow Creek 152 Comment
  SEINET8999606 Image available Trichostema lanceolatum Unknown 1934-8-19 13595 Humboldt TRINITY RIVER VALLEY, at Willow Creek 152 Comment
  JEPS63152  Trichostema oblongum Joseph P. Tracy 1921-8-21 5936 Humboldt Trinity River Valley near Willow Creek Northern Coast Ranges 152 Comment
  JEPS63170  Trichostema oblongum Joseph P. Tracy 1927-8-7 8327 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  SEINET8999565 Image available Trichostema oblongum Unknown 1927-8-7 8327 Humboldt Trinity River Valley, at Willow Creek Comment
  HSC17936  Trientalis latifolia D. E. Anderson 1965-5-8 3653 Humboldt About 3 mi. N of Willow Creek along rd. on E side of Trinity River. 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
  RSA460856  Trientalis latifolia Jane Turner, Francis M. Ball 1962-7-10 1139 Humboldt East Fork Willow Creek Forest Camp, Hwy 299 ca. 5 mi. W of Willow Creek in Six Rivers National Forest. 457 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
  HSC71212  Trifolium arvense Thomas W. Nelson, Jane P. Nelson 1979-5-25 4697 Humboldt Willow Creek Comment
  SD104865  Trifolium arvense Darley Howe 1979-6-25 5195 Humboldt one mile west of Willow Creek, highway 299 Comment
  UC249524  Trifolium bifidum var. bifidum Joseph P. Tracy 1922-4-30 5992 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  POM127043  Trifolium cyathiferum Franklin Nutting s.n. Lassen Willow Creek. Comment
Read comments
Jan 25 2016
  HSC73960  Trifolium dichotomum Gail Newton 1980-6-7 128 Humboldt Near Brush Mtn. 1128 Comment
  HSC15149  Trifolium microcephalum D. E. Anderson 1965-5-8 3645 Humboldt About 2 mi. N of Willow Creek on the road running along E side of Trinity River Comment
  HSC73818  Trifolium microcephalum Gail Newton 1980-6-7 118 Humboldt Near Brush Mtn. 1128 Comment
  RSA183525  Trifolium microcephalum D. E. Anderson 1965-5-8 3645 Humboldt About 2 miles north of Willow Creek along road running along east side of Trinity River. Comment
  UC1602107  Trifolium microcephalum Joseph P. Tracy 1922-4-30 6022 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  SEINET4178759 Image available Trifolium obtusiflorum Unknown 1932-6-14 10153 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC1197489  Trifolium oliganthum Joseph P. Tracy 1922-4-30 6002 Humboldt near Willow creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC160989  Trifolium variegatum var. variegatum Joseph P. Tracy 1911-7-7 3368 Humboldt 3 mi nw Junction os Wilow Creek with Trinity river (near Beebe's Ranch); Northern Coast Ranges Comment
  HSC15177  Trifolium willdenovii D. E. Anderson 1965-5-8 3643 Humboldt About 2 mi. N of Willow Creek on the road running along E side of Trinity River Comment
  RSA183625  Trifolium willdenovii D. E. Anderson 1965-5-8 3643 Humboldt About 2 miles north of Willow Creek on road running along east side of Trinity River. Comment
  UC1197510  Trifolium willdenovii Joseph P. Tracy 1922-4-30 6033 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC15683  Trillium albidum D. E. Anderson 1965-5-1 3567 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  RSA271695  Trillium ovatum Jane Turner, Francis M. Ball 1962-7-10 SK&F- 1140 Humboldt East Fork Willow Creek Forest Camp, Hwy 299 ca. 5 mi. W of Willow Creek in Six Rivers National Forest. 457 Comment
  RSA378216  Trillium ovatum Jane Turner, Francis M. Ball 1962-7-10 1140 Humboldt East Fork Willow Creek Forest Camp, Hwy 299 ca. 5 mi. W of Willow Creek in Six Rivers National Forest. 457 Comment
  UC602558  Triodanis perfoliata Joseph P. Tracy 1932-6-14 10154 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  UC582572  Triphysaria pusilla Joseph P. Tracy 1931-4-26 9337 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  CAS-BOT-BC199621  Trisetum canescens L. R. Abrams 1918-6-16 7142 Humboldt Willow Creek Comment
  UC212882  Trisetum canescens Joseph P. Tracy 1919-5-31 5157 Humboldt near Willow Creek (hill slopes at w side of Trinity River); Northern Coast Ranges, Trinity River 152 Comment
  UC905633  Trisetum canescens David D. Keck 1948-6-2 6006 Humboldt 4 mi w Willow Creek (near boundary of Six River National Forest, e side of Rocky Ridge, e of Berry's summit); Rocky Ridge 457 Comment
  UC922029  Trisetum cernuum Joseph P. Tracy 1940-8-11 16695 Humboldt Streambank at Raccoon Creek; Trinity River Valley, near Willow Creek 152 Comment
  UCD93901  Trisetum cernuum Freed W. Hoffman 1946-5-23 1722 Humboldt Boise Park, Willow Creek. Comment
  UCD93910  Trisetum cernuum Joseph P. Tracy 1940-8-11 16695 Humboldt Trinity River Valley, near Willow Creek. At Raccoon Creek. 152 Comment
  UC1197723  Triteleia bridgesii Joseph P. Tracy 1911-7-7 3413 Humboldt viz. ridge n Willow Creek (between Willow and Campbell Creeks, near the summit); Northern Coast Ranges, Brannan Mountain 1219 Comment
  CAS-BOT-BC91108  Umbellularia californica Doris K. Kildale 1927-8-16 2515 Humboldt Upper Willow Creek Flat - Trinity River Valley. 152 Comment
  RSA47119  Umbellularia californica Doris K. Kildale 1926-8-15 2515 Humboldt Willow Creek Flat 152 Comment
  UC205458  Umbellularia californica Joseph P. Tracy 1919-9-13 5196 Humboldt Trinity River, at Willow Creek Willow Creek; Northern Coast Ranges, Trinity River, Willow Creek 152 Comment
  CAS-BOT-BC199324  Vaccinium ovatum L. R. Abrams 1918-6-16 7188 Humboldt Willow Creek Comment
  UC1197780  Vaccinium parvifolium Joseph P. Tracy 1931-4-26 9341 Humboldt Willow Creek Canyon Northern Coast Ranges 609 Comment
  CAS-BOT-BC5073  Valeriana sitchensis subsp. scouleri Alice Eastwood; John Thomas Howell 1937-6-24 4868 Humboldt 5 miles E of Berry Summit Comment
  CAS-BOT-BC5074  Valeriana sitchensis subsp. scouleri Alice Eastwood; John Thomas Howell 1937-6-24 4868 Humboldt 5 miles E of Berry Summit Comment
  SJSU2573  Valeriana sitchensis subsp. scouleri H. L. Buckalew 1962-7-2 Humboldt junction of Willow Cr & E Fork Willow Cr on Hwy 299 Comment
  UC602512  Valeriana sitchensis subsp. scouleri Joseph P. Tracy 1924-4-27 6643 Humboldt Willow Creek Canyon; Northern Coast Ranges 609 Comment
  CAS-BOT-BC76083  Vancouveria planipetala Doris K. Kildale 1926-5-2 1861 Humboldt Willow Creek Flat. 152 Comment
  CAS-BOT-BC76086  Vancouveria planipetala L. R. Abrams 1918-6-16 7189 Humboldt Willow Creek. Comment
  UC161073  Vancouveria planipetala Joseph P. Tracy 1911-7-7 3420 Humboldt Brannan Mountain viz. ridge n of Willow Creek between Willow and Campbell Creeks (near the summit); Northern Coast Ranges, Brannan Mountain, n Willow Creek 1219 Comment
  UCD95107  Vancouveria planipetala D. Sanchez-Mata 1996-6-28 s.n. Humboldt Willow Creek. 650 Comment
  JEPS11174  Verbascum blattaria Joseph P. Tracy 1937-6-26 15366 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  UC1222773  Verbascum blattaria Joseph P. Tracy 1950-7-9 18980 Humboldt along Trinity Highway Willow Creek Canyon Comment
  UC213362  Verbascum blattaria Joseph P. Tracy 1919-9-13 5199 Humboldt Trinity River Valley near Willow Creek (near Willow Creek); Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  UC582590  Verbascum blattaria Joseph P. Tracy 1937-6-26 15366 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  UC582591  Verbascum blattaria Joseph P. Tracy 1937-6-26 15366 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  UC585977  Verbena lasiostachys var. lasiostachys Joseph P. Tracy 1933-7-3 12632 Humboldt Willow Creek; Trinity River Valley 152 Comment
  UC160988  Vicia americana var. americana Joseph P. Tracy 1911-7-7 3431 Humboldt Brannan Mountain Northern Coast Ranges (viz ridge n of Willow Creek, between Willow Creek and Campbell Creek, near the summit) 1219 Comment
  UC604647  Vinca major Joseph P. Tracy 1938-4-5 15703 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  HSC21778  Viola cuneata Frances Oldridge 1946-1 Humboldt Willow Creek Comment
  HSC21822  Viola ocellata D. E. Anderson 1965-5-1 3557 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  JEPS50441  Viola ocellata Joseph P. Tracy 1922-4-30 6034 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1198454  Viola ocellata Joseph P. Tracy 1911-7-7 3403 Humboldt [Viz.] Ridge n of Willow Creek, between Willow and Campbell Creeks, near the summit Willow Creek; Northern Coast Ranges, Brannan Mountain 914 Comment
  UC249589  Viola ocellata Joseph P. Tracy 1922-4-30 6034 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  CAS-BOT-BC203046  Vitis californica Doris K. Kildale 1926-5-2 1864 Humboldt Willow Creek Flat - Trinity River tributary 152 Comment
  CAS-BOT-BC203050  Vitis californica L. R. Abrams 1918-6-16 7151 Humboldt Willow Creek Comment
  GH381681  Vitis californica J. P. Tracy 1911-7-5 3333 Unknown Tributary of Trinity River, near its mouth 152 Comment
  GH381683  Vitis californica S. K. Harris & J. P. Tracy 1936-6-10 3240 Unknown Tracy's Ranch, Willow Creek Comment
  RSA46711  Vitis californica Doris K. Kildale 1926-5-2 1864 Humboldt Willow Creek Flat. Comment
  SEINET200566 Image available Vitis californica Joseph P. Tracy 1922-1 6109 Humboldt Klamath River at Bluff Creek. 91 Comment
  SEINET200825 Image available Vitis californica Joseph P. Tracy 1911-1 3333 Humboldt Along Willow Creek, a tributary of Trinity River. Near its mouth 152 Comment
  UC1197980  Vitis californica Joseph P. Tracy 1933-7-3 12630 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC165806  Vitis californica Joseph P. Tracy 1911-7-5 3333 Humboldt Willow Creek Northern Coast Ranges ((tributary of Trinity River), near its mouth) 152 Comment
  UC165807  Vitis californica Joseph P. Tracy 1911-7-5 3333 Humboldt Willow Creek Northern Coast Ranges ((tributary of Trinity River), near its mouth) 152 Comment
  CAS-BOT-BC198763  Vulpia bromoides Doris K. Kildale 1926-5-2 1857 Humboldt Willow Creek Flat, Trinity River Valley 152 Comment
  CHSC19731  Vulpia microstachys D. E. Anderson; J. O. Sawyer, J. P. Smith 1970-5-10 5070 Humboldt Ca. 3 miles west of Willow Creek along Three Creeks Road. Comment
  HSC22841  Vulpia microstachys D. E. Anderson, J. O. Sawyer, J. P. Smith 1970-5-10 5070 Humboldt 3 mi. W of Willow Creek along Three Creeks Rd. Comment
  HSC9905  Vulpia microstachys D. E. Anderson 1965-5-8 3648 Humboldt About 3 mi. N of Willow Creek along rd. on E side of Trinity River. Comment
  RSA183526  Vulpia microstachys D. E. Anderson 1965-5-8 3648 Humboldt 3 miles N of Willow Creek along road on E side of Trinity River. Comment
  UC212886  Vulpia microstachys var. microstachys Joseph P. Tracy 1919-5-31 5161 Humboldt near Willow Creek (hillslopes at the w side of Trinity River); Northern Coast Ranges, Trinity River 152 Comment
  UC212887  Vulpia microstachys var. pauciflora Joseph P. Tracy 1919-5-31 5161 1/2 Humboldt near Willow Creek (hillslopes at w side of Trinity River); Northern Coast Ranges, Trinity River 152 Comment
  HSC70350  Vulpia myuros M. A. Baker 1980-6-7 1810 Humboldt Near Brush Mtn. 1128 Comment
  HSC70383  Vulpia myuros M. A. Baker 1980-6-7 1792 Humboldt Near Brush Mtn. 1128 Comment
  HSC70537  Vulpia myuros Gail Newton 1980-6-7 139 Humboldt Near Brush Mtn. 1128 Comment
  UC1145203  Vulpia myuros var. hirsuta Joseph P. Tracy 1941-3-26 16836 Humboldt Willow Creek; Trinity River Valley 152 Comment
  CAS-BOT-BC128815  Whipplea modesta L. R. Abrams 1918-6-16 7145 Humboldt Lower arid Transition Zone, Willow Creek Comment
  HSC20447  Whipplea modesta J. W. Johnson 1962-4-22 1280 Humboldt Willow Creek along the Hwy. on the canyon slope W of town Comment
  HSC40231  Whipplea modesta J. P. Smith, J. O. Sawyer 1976-5-2 8621 Humboldt 3.7 mi. N of junction with Hwy. 299 on Hwy. 96 61 Comment
  HSC70379  Whipplea modesta M. A. Baker 1980-6-7 1796 Humboldt Near Brush Mtn. 287 Comment
  UC161564  Whipplea modesta Joseph P. Tracy 1911-7-7 3429 Humboldt Brannan Mt Northern Coast Ranges (viz: ridge n of Willow Creek, between Willow and Campbell Creeks, near the summit) 1219 Comment
  CAS-BOT-BC382921  Wyethia angustifolia L. R. Abrams 1918-6-15 7125 Humboldt Brannan Mt near Willow Creek 1371 Comment
  CAS-BOT-BC382931  Wyethia angustifolia Doris K. Kildale 1926-5-2 1897 Humboldt Willow Creek Flat 152 Comment
  HSC73775  Zigadenus micranthus M. A. Baker 1980-6-7 1769 Humboldt Near Brush Mtn. 1128 Comment
  UC1173721  Zigadenus micranthus var. micranthus Joseph P. Tracy 1930-7-10 8872 Humboldt Brannan Mountain 1066 Comment



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