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Specimen ID
Determination *
Collector
Collection Date
Collection Number
County
Locality
Elevation in meters
Feedback
HSC40002
Abies grandis
Linda M. Barker
1976-9-3
1688
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata.
Comment
HSC38927
Abronia latifolia
Linda M. Barker
1976-5-13
1490
Humboldt
3 mi. W of Arcata.
Comment
HSC62997
Abronia latifolia
David Wheeler
1979-5-10
103
Humboldt
Mad River Beach County Park .25 mi. NW of parking lot
Comment
UC55499
Abronia latifolia
J. P. Tracy
1901-8-7
1271
Humboldt
Sand Hills of Ocean Beach Samoa, Opp Eureka
Comment
UCD109781
Abronia latifolia
Linda M. Barker
1976-5-13
1490
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
UCD109784
Abronia latifolia
Roman Gankin
1965-8-6
558
Humboldt
1.3 miles south of Samoa, Samoa Peninsula.
Comment
BLMAR389
Abronia umbellata subsp. breviflora
Jennifer Anthony-Wheeler
2004-10-10
389
Humboldt
Samoa/manilla dunes, Due west of water line tower number77
3
Comment
HSC75231
Abronia umbellata var. breviflora
D. M. Gordon
1982-9-23
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata.
Comment
CHSC10146
Achillea millefolium
J. W. Johnson
1961-8-17
1061
Humboldt
Arcata, California. W.M. Lanphere Farm, Samoa Peninsula.
Comment
HSC40947
Achillea millefolium
Linda M. Barker
1976-6-1
1541
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata.
Comment
HSC4546
Achillea millefolium
J. W. Johnson
1961-8-17
1061
Humboldt
Arcata, W.M. Lanphere Farm, Samoa Peninsula.
Comment
HSC4548
Achillea millefolium
R. I. Bonn
1965-4-3
15
Humboldt
Four miles West of Arcata on Lanphere Rd.
Comment
HSC90231
Achillea millefolium
L. Watson, J. Meninga
Aug 1990
1
Humboldt
Near Manilla. Mad River Slough and Dunes; 20 ft. N of parking lot, W of trail
Comment
HSC95116
Achillea millefolium
Andrea Pickart
2002-7-3
153
Humboldt
Big Dune, Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge
24
Comment
UCD128286
Achillea millefolium
Linda M. Barker
1976-6-1
1541
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
UCD103770
Acmispon americanus var. americanus
Linda M. Barker
1976-6-1
1548
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC40264
Acmispon micranthus
Linda M. Barker
1976-4-30
1410
Humboldt
3 mi. W of Arcata
Comment
HSC98300
Acmispon micranthus
Norman H. Moe
1962-5-12
Humboldt
Lanphere's place, .25 mi. from ocean.
Comment
UCD104287
Acmispon parviflorus
Linda M. Barker
1976-4-30
1410
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
UCD104288
Acmispon parviflorus
Linda M. Barker
1976-6-1
1557
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
UCD128632
Agoseris apargioides
Linda M. Barker
1976-7-5
1643
Humboldt
Lanphere-Christensen Dunes, 3 miles west of Arcata.
Comment
UC166820
Agoseris apargioides var. maritima
J. P. Tracy
1901-8-7
1259
Humboldt
sand hills at Samoa, opposite Eureka Ocean Beach, Eureka
Comment
CHSC10150
Agoseris grandiflora
J. W. Johnson
1961-8-17
1004
Humboldt
Arcata. Dune field, W. M. Lanphere Farm, Samoa Peninsula.
Comment
HSC39937
Agoseris grandiflora
Linda M. Barker
1976-7-5
1643
Humboldt
3 mi. W of Arcata.
Comment
HSC4595
Agoseris grandiflora
J. W. Johnson
1961-8-17
1004
Humboldt
Arcata, W.M. Lanphere Farm, Samoa Peninsula.
Comment
HSC8788
Agrostis exarata
D. E. Anderson
1963-10-6
2882
Humboldt
Mad River bars, across from Essex Junction.
Comment
CHSC69848
Agrostis hallii
Leonel Arguello
1989-8-20
Humboldt
Collected at the Lanphere-Christensen Dunes Preserve 3 miles west of Arcata. Growing alongside North Dune Loop trail about 40 yards from the Salt Marsh trail.
Comment
HSC90001
Agrostis hallii
Leonel Arguello
1989-8-20
Humboldt
Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata, alongside N Dune loop trail.
Comment
HSC8803
Agrostis microphylla
D. E. Anderson
1963-10-6
2883
Humboldt
Mad River bars, across from Essex Junction.
Comment
HSC89897
Agrostis microphylla
Leonel Arguello
1989-7-7
Humboldt
Lanphere-Christensen Dunes Preserve, 3 mi W of Arcata, south-west quadrant of Fernstrom-Root parcel.
Comment
CAS-BOT-BC138636
Agrostis stolonifera
Carl B. Wolf
1927-8-28
1189
Humboldt
Eureka Bay, on the road to Arcata.
Comment
HSC8810
Agrostis stolonifera
C. B. Wolf
1927-8-27
1189
Humboldt
Eureka Bay, on the road from Eureka to Arcata.
Comment
RSA15570
Agrostis stolonifera
C. B. Wolf
1927-8-28
1189
Humboldt
Eureka Bay on road to Arcata
Comment
HSC38924
Aira caryophyllea
Linda M. Barker
1976-5-13
1475
Humboldt
3 mi. W of Arcata
Comment
UCD55761
Aira caryophyllea
Linda M. Barker
1976-4-30
1411
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
UCD55782
Aira caryophyllea
Linda M. Barker
1976-5-13
1475
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC40342
Aira praecox
Linda M. Barker
1976-4-30
1411
Humboldt
3 mi. W of Arcata
Comment
RSA183573
Aira praecox
R. I. Bonn
1965-5-7
22
Humboldt
Four miles west of Arcata on Lamphere Rd.
Comment
SEINET3884720
Allium hoffmanii
D. E. Anderson, Thomas Nelson; Steve Dowty
1972-6-14
5582
Trinity
Red Lassic.; 0
1798
Comment Read comments Aug 27 2018
HSC3391
Alnus rubra
J. W. Johnson
1962-3-15
1138
Humboldt
Along Lanphere Lane near the swamp, Samoa Peninsula
Comment
HSC3394
Alnus rubra
J. W. Johnson
1961-9-4
1088
Humboldt
Along Lanphere Lane near the swamp, Samoa Peninsula
Comment
HSC40971
Alnus rubra
Linda M. Barker
1976-6-14
1602
Humboldt
3 mi. W of Arcata
Comment
UCD110034
Alnus rubra
Linda M. Barker
1976-6-14
1602
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
CAS-BOT-BC138016
Alopecurus geniculatus
Joseph P. Tracy
1933-7-20
12802
Humboldt
North Coast Ranges. Arcata Bottom.
15
Comment
UC1103312
Alopecurus geniculatus
Joseph P. Tracy
1933-7-20
12802
Humboldt
Arcata <Bottom> North Coast Ranges, Arcata <Bottom>
15
Comment
UC526860
Alopecurus geniculatus
Joseph P. Tracy
1933-7-20
12802
Humboldt
Arcata <Bottom> North Coast Ranges, Arcata <Bottom>
15
Comment
UCD55891
Alopecurus geniculatus
William Anderson
1965-6-26
s.n.
Humboldt
Mad River Slough.
Comment
HSC8895
Alopecurus pratensis
D. J. McVean
1965-4-19
18
Humboldt
Arcata bottoms, along Jackson Rd. at intersection with Samoa Blvd.
Comment
HSC8897
Alopecurus pratensis
W. F. Cartwright
1965-4-22
60
Humboldt
2 mi. W of Arcata on Arcata bottoms
Comment
HSC8903
Alopecurus pratensis
R. H. Berg
1963-4-11
24
Humboldt
Arcata Bottoms, 2 mi. W of Arcata
Comment
CHSC10149
Ambrosia chamissonis
J. W. Johnson
1961-8-17
1022
Humboldt
W. M. Lanphere Farm, Samoa Peninsula.
Comment
HSC28482
Ambrosia chamissonis
J. D. Ackerman
1973-8-23
118
Humboldt
Mad River Beach Co. Park
Comment
HSC40260
Ambrosia chamissonis
Linda M. Barker
1976-8-2
1674
Humboldt
Lanphere- Christensen Dunes, 3 mi. W of Arcata
Comment
HSC5661
Ambrosia chamissonis
J. W. Johnson
1961-8-17
1022
Humboldt
Arcata, W.M. Lanphere Farm, Samoa Peninsula.
Comment
RSA245279
Ambrosia chamissonis
J. D. Ackerman
1973-8-23
118
Humboldt
Mad river beach co. park
Comment
SEINET3132553
Ambrosia chamissonis
J. W. Johnson
1961-8-17
1022
Humboldt
Arcata, W.M. Lanphere farm, Samoa Peninsula.
Comment
UC127637
Ambrosia chamissonis
J. P. Tracy
1901-8-7
1275
Humboldt
at, on Sea Beach opposite Eureka Samoa
Comment
UC166090
Ambrosia chamissonis
J. P. Tracy
1901-8-7
1265
Humboldt
at, opposite Eureka Samoa; Ocean Beach
Comment
UCD128769
Ambrosia chamissonis
Linda M. Barker
1976-8-2
1674
Humboldt
3 miles west of Arcata.
Comment
CAS-BOT-BC137867
Ammophila arenaria
Dziekanowski; Dunn; Bennett
1976-8-6
2504
Humboldt
In the vicinity of a state park on the beach opposite McKenleyville.
3
Comment
CDA18243
Ammophila arenaria
G. D. Barbe, T. C. Fuller
1974-6-19
1881
Humboldt
North Coast Ranges; Mad River mouth, beach S of river, at end of Iversen Lane, Tyee City.
7
Comment
HSC39948
Ammophila arenaria
Linda M. Barker
1976-6-22
1624
Humboldt
3 mi. W of Arcata
Comment
HSC8846
Ammophila arenaria
D. J. Wilder
1965-4-26
16
Humboldt
Mouth of Mad River
Comment
SEINET3917966
Ammophila arenaria
Dziekanowski, Dunn; Bennett
1976-8-6
2504
Humboldt
Collected in the vicinity of a state park on the beach opposite McKinleyville.; 0
Comment
UCD55994
Ammophila arenaria
Linda M. Barker
1976-6-22
1624
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC32503
Anagallis arvensis
David Johnson
1974-5-2
73
Humboldt
Mad River Co. Park, mouth of the Mad River; by the parking lot
Comment
HSC40259
Anaphalis margaritacea
Linda M. Barker
1976-8-2
1671
Humboldt
Lanphere- Christensen Dunes, 3 mi. W of Arcata
Comment
HSC4623
Anaphalis margaritacea
J. W. Johnson
1961-8-17
1018
Humboldt
Arcata, W.M. Lanphere Farm, Samoa Peninsula.
Comment
HSC90221
Anaphalis margaritacea
L. Watson, J. Watson
Aug 1990
2
Humboldt
Near Manilla; Mad River Slough and Dunes, 50 yds. N of parking lot, E. of trail
Comment
UCD128833
Anaphalis margaritacea
Linda M. Barker
1976-8-2
1671
Humboldt
3 miles west of Arcata.
Comment
HSC38792
Anthemis cotula
J. D. Ackerman
1975-8-31
655
Humboldt
Lanphere Rd. near Mad River Slough, Arcata Bottoms
2
Comment
HSC10094
Anthoxanthum occidentale
J. W. Johnson
1962-3-14
1120
Humboldt
Arcata, Lanphere Farm, Samoa Peninsula, woods at the side of Miller Ln.
Comment
HSC10098
Anthoxanthum occidentale
D. E. Anderson
1962-5-10
2205
Humboldt
Lanphere Ranch
Comment
HSC10101
Anthoxanthum occidentale
L. H. Myers
1963-2-20
17
Humboldt
W of Lanpheres Rd, Mad River slough area
Comment
HSC28090
Anthoxanthum occidentale
J. D. Ackerman, A. M. Montalvo
1973-3-27
37
Humboldt
1.5 mi. N of Manila
Comment
HSC39951
Anthoxanthum occidentale
Linda M. Barker
1976-2-22
1312
Humboldt
3 mi. W of Arcata
Comment
HSC40404
Anthoxanthum occidentale
Linda M. Barker
1976-4-13
1387
Humboldt
3 mi. W of Arcata
Comment
UCD85343
Anthoxanthum occidentale
Linda M. Barker
1976-2-22
1312
Humboldt
Coast forest and dunes 3 miles west of Arcata.
Comment
HSC40341
Anthoxanthum odoratum
Linda M. Barker
1976-4-30
1402
Humboldt
3 mi. W of Arcata
Comment
HSC5264
Anthoxanthum odoratum
John Warner Hosking
1966-5-8
Humboldt
Arcata bottomland, Arcata
Comment
UCD56232
Anthoxanthum odoratum
Linda M. Barker
1976-4-30
1402
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
UCD81681
Anthoxanthum odoratum
Chuck Hughes
2009-6-18
101
Humboldt
Near Arcata. NE corner of intersection of Old Samoa Road and Pacheco Road.
1
Comment
HSC40265
Aphanes occidentalis
Linda M. Barker
1976-4-30
1413
Humboldt
3 mi. W of Arcata
Comment
UC154129
Aphanes occidentalis
J. P. Tracy
1904-4-24
2033
Humboldt
opposite Eureka (Ocean Beach at Samoa); Samoa
Comment
UCD143195
Aphanes occidentalis
Linda M. Barker
1976-4-30
1413
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC6523
Arabis glabra
D. E. Anderson
1962-5-10
2206
Humboldt
Lanphere Ranch.
Comment
HSC40306
Arbutus menziesii
Linda M. Barker
1976-4-30
1405
Humboldt
3 mi. W of Arcata
Comment
HSC7592
Arbutus menziesii
J. W. Johnson
1962-4-2
1416
Humboldt
In the woods near Lanphere Lane, Christenson Farm, Samoa Peninsula
Comment
HSC7596
Arbutus menziesii
J. W. Johnson
1962-3-15
1184
Humboldt
In the woods near Lanphere Lane, Christenson Farm, Samoa Peninsula
Comment
UCD117472
Arbutus menziesii
Linda M. Barker
1976-4-30
1405
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
UCR178912
Arbutus menziesii
R. G. Swinney
1968-4-13
243
Humboldt
North Coast, Lanphere's Preserve, west of Arcata
15
Comment
HSC33075
Arctostaphylos columbiana
Thomas W. Nelson, J. D. Ackerman
1974-5-14
1264
Humboldt
Beside old Samoa-Crannell railroad bed adjacent to the Mad River Slough N of Emerson Mill
Comment
HSC39054
Arctostaphylos columbiana
Linda M. Barker
1976-2-22
1319
Humboldt
3 mi. W of Arcata
Comment
UCD50668
Arctostaphylos columbiana
Linda M. Barker
1976-2-22
1319
Humboldt
Coastal forest and dunes 3 miles west of Arcata.
Comment
CAS-BOT-BC43979
Arctostaphylos uva-ursi
Greg de Nevers
2001-4-18
12251
Humboldt
Lanphere-Christenson dunes, near Arcata.
9
Comment
CAS-BOT-BC47211
Arctostaphylos uva-ursi
Josh Suchocki; Charlene Vullo; Kyle Wear
1995-4-15
101
Humboldt
Manila.
Comment
HSC12226
Arctostaphylos uva-ursi
Gary J. Stebbins
1970-4-18
68
Humboldt
Along road to Samoa 1.1 mi. S of Mad River slough bridge
Comment
HSC28130
Arctostaphylos uva-ursi
J. D. Ackerman, A. M. Montalvo
1973-3-27
42
Humboldt
1.5 mi. N of Manila
Comment
HSC39960
Arctostaphylos uva-ursi
Linda M. Barker
1976-4-13
1379
Humboldt
3 mi. W of Arcata
Comment
HSC7726
Arctostaphylos uva-ursi
J. W. Johnson
1962-3-31
1196
Humboldt
Ridge 8, W.M. Lanphere Farm, Samoa Peninsula, Arcata
Comment
HSC7727
Arctostaphylos uva-ursi
J. W. Johnson
1961-8-17
1013
Humboldt
W.M. Lanphere Farm, Samoa Peninsula
Comment
HSC7730
Arctostaphylos uva-ursi
Norman H. Moe
1962-3-17
Humboldt
Lanphere's Place
Comment
HSC7731
Arctostaphylos uva-ursi
L. H. Myers
1963-5-5
28
Humboldt
W of Lanpheres Rd., Mad River slough area
Comment
HSC90240
Arctostaphylos uva-ursi
L. Watson, J. Meninga
Mar 1991
12
Humboldt
Near Manilla. Mad River Slough and Dunes. N of parking lot, W of trail
Comment
HSC95653
Arctostaphylos uva-ursi
Andrea Pickart
2002-4-5
42
Humboldt
Lanphere Dunes
40
Comment
RSA636928
Arctostaphylos uva-ursi
Jon E. Keeley, J. O. Sawyer
1996-10-11
27665
Humboldt
Landfill Christensen Nature Conservancy Reserve, Arcata.
25
Comment
SEINET3106998
Arctostaphylos uva-ursi
Steve Selva, Roger Jensen
1974-8-28
91
Humboldt
Approx 5 mi S of Arcata on the sand dunes of the Samoa Peninsula.
Comment
UCR178884
Arctostaphylos uva-ursi
R. G. Swinney
1968-4-13
244
Humboldt
North Coast, Lanphere's Preserve, west of Arcata
15
Comment
RSA183565
Arctostaphylos uva-ursi var. coactilis
R. I. Bonn
1965-4-3
13
Humboldt
Four miles west of Arcata on Lanphere Rd.
Comment
UCD52156
Arctostaphylos uva-ursi var. coactilis
Linda M. Barker
1976-4-13
1379
Humboldt
Coastal forest and dunes 3 miles west of Arcata, Humboldt Co., California.
Comment
HSC16895
Armeria maritima subsp. californica
Paul Shields
May 1955
Humboldt
5 mi. N of Arcata.
Comment
HSC16898
Armeria maritima subsp. californica
L. H. Myers
1963-5-5
2
Humboldt
W of Lanpheres Rd., Mad River slough area
Comment
HSC16901
Armeria maritima subsp. californica
J. W. Johnson
1962-5-9
1337
Humboldt
Arcata, stabilized ridge 3, Christenson Farm, Samoa Peninsula
Comment
HSC40932
Armeria maritima subsp. californica
Linda M. Barker
1976-6-1
1553
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata.
Comment
HSC47569
Armeria maritima subsp. californica
Sheila Logan
1978-4-10
113
Humboldt
McKinleyville, foot of Hiller Rd. at Ocean Rd., at Mad River.
Comment
UCD98448
Armeria maritima subsp. californica
Linda M. Barker
1976-6-1
1553
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
UC1103322
Arrhenatherum elatius
Ellingwood
1946-11-1
Humboldt
Arcata Bottom
12
Comment
CDA1730
Arrhenatherum elatius var. bulbosum
T. C. Fuller
1966-10-4
15237
Humboldt
Northwest portion of Arcata.
0
Comment
CAS-BOT-BC146268
Arrhenatherum elatius var. elatius
T. C. Fuller
1966-10-4
15237
Humboldt
Northwest portion of Arcata.
Comment
CAS-BOT-BC146270
Arrhenatherum elatius var. elatius
H. S. Yates
1936-6-23
5851
Humboldt
2 miles east of mouth of Mad River.
30
Comment
CHSC10103
Artemisia pycnocephala
J. W. Johnson
1961-9-4
1098
Humboldt
Arcata. On the west slope of Ridge 1, Christenson Farm, Samoa Peninsula.
Comment
HSC40298
Artemisia pycnocephala
Linda M. Barker
1976-7-5
1633
Humboldt
3 mi. W of Arcata.
Comment
HSC40299
Artemisia pycnocephala
Linda M. Barker
1976-8-2
1675
Humboldt
Lanphere- Christensen Dunes, 3 mi. W of Arcata
Comment
HSC4741
Artemisia pycnocephala
J. W. Johnson
1961-9-4
1098
Humboldt
Christenson Farm, Samoa Peninsula, Arcata.
Comment
UC164826
Artemisia pycnocephala
J. P. Tracy
1909-7-18
3023
Humboldt
opp. Eureka (sand hills of ocean beach); Samoa
Comment
UCD129341
Artemisia pycnocephala
Linda M. Barker
1976-7-5
1633
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
UC162361
Atriplex gmelinii var. gmelinii
Joseph P. Tracy
1911-11-5
3555
Humboldt
near mouth Mad River Slough (region about Humboldt Bay); Northern Coast Region, Humboldt Bay, Mad River Slough
0
Comment
UC55498
Atriplex leucophylla
J. P. Tracy
1901-8-7
1264
Humboldt
opp. Eureka (sand hills of Ocean Beach at Samoa); Samoa, opp. Eureka
Comment
HSC95384
Atriplex prostrata
Andrea Pickart
2002-8-8
191
Humboldt
Arcata Marsh at end of I st.
0
Comment
CHSC10152
Baccharis pilularis subsp. consanguinea
J. W. Johnson
1961-9-4
1102
Humboldt
In the hollow north of dune 3 north Christenson Farm, Samoa Peninsula.
Comment
HSC39984
Baccharis pilularis subsp. consanguinea
Linda M. Barker
1976-9-3
1691
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata.
Comment
HSC47014
Baccharis pilularis subsp. consanguinea
Sheila Logan
1978-11-23
223
Humboldt
Manila Sand Dunes, Manila; 1/4 mile W of junction with Samoa Blvd. and Redwood Gun club
6
Comment
HSC5117
Baccharis pilularis subsp. consanguinea
J. W. Johnson
1961-11-20
1409
Humboldt
Arcata; Hollow 10, Lanphere Farm, Samoa Peninsula
Comment
HSC5118
Baccharis pilularis subsp. consanguinea
J. W. Johnson
1961-9-4
1102
Humboldt
Arcata; in the Hollow N of Dune 3 N Christenson Farm, Samoa Peninsula
Comment
HSC90230
Baccharis pilularis subsp. consanguinea
L. Watson, J. Meninga
Aug 1990
3
Humboldt
Near Manilla. Mad River Slough and Dunes, 50 ft. from parking lot, E of trail
Comment
SEINET3132551
Baccharis pilularis subsp. consanguinea
J. W. Johnson
1961-11-20
1409
Humboldt
Arcata; at the edge of the vernal pond community; hollow 10, W.M. Lanphere farm; Samoa Peninsula.
Comment
UCD129438
Baccharis pilularis subsp. consanguinea
Linda M. Barker
1976-9-3
1691
Humboldt
3 miles west of Arcata.
Comment
HSC95549
Barbarea vulgaris
Andrea Pickart
2002-5-24
107
Humboldt
CDFG's Mad River Slough Wildlife Area, Arcata Bottoms
0
Comment
SD112347
Blechnum spicant
Darley F. Howe
1961-8-1
3109
Humboldt
Three mi. N of Arcata on Hwy. 101.
Comment
SD51258
Blechnum spicant
Darley F. Howe
1961-8-1
Humboldt
3 mi. N of Arcata on #101.
Comment
CHSC69843
Bolboschoenus maritimus subsp. paludosus
Leonel Arguello
1989-6-11
Humboldt
At the Lanphere-Christensen Dunes Preserve 3 miles west of Arcata. Along the edge of the salt marsh, approximately 50 ft. west of the Salt Marsh trail.
Comment
HSC44123
Botrychium multifidum
Thomas F. Lyon, Linda M. Barker
1977-5-8
1715
Humboldt
3 mi. W of Arcata in S pasture
Comment
HSC104048
Briza maxima
E. R. Fyer
2015-4-26
20
Humboldt
At turnout off Samoa Blvd.
1
Comment
HSC8563
Briza maxima
G. L. Martin
1966-5-10
41
Humboldt
Mckinleyville, Mad River beach area in back of Ocean Dr., E side of river
Comment
HSC89994
Briza maxima
Leonel Arguello
1989-6-2
Humboldt
Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata, Hunt parcel
Comment
HSC33078
Brodiaea terrestris subsp. terrestris
Thomas W. Nelson, J. D. Ackerman
1974-5-14
1267
Humboldt
Beside old Samoa-Crannell railroad bed adjacent to the Mad River Slough N of Emerson Mill
Comment
UCD125575
Bromus
Laurel Goldsmith
2012-11-1
s.n.
Humboldt
Near Arcata. Humboldt Bay National Wildlife Refuge. Lanphere Dunes Unit, just outside main office. 6800 Lanphere Road.
5
Comment
UCD125576
Bromus
Laurel Goldsmith
2012-11-1
s.n.
Yolo
Near Arcata. Humboldt Bay National Wildlife Refuge. Lanphere Dunes Unit, just outside main office. 6800 Lanphere Road.
5
Comment
CHSC10108
Bromus diandrus
J. W. Johnson
1962-4-18
1268
Humboldt
Arcata. Along the lower lane below the W.M. Lanphere home, Samoa Peninsula.
Comment
HSC40340
Bromus diandrus
Linda M. Barker
1976-4-30
1403
Humboldt
3 mi. W of Arcata
Comment
HSC9269
Bromus diandrus
J. W. Johnson
1962-4-8
1222
Humboldt
Arcata, Mad River Co. Park
Comment
HSC9271
Bromus diandrus
J. W. Johnson
1962-4-18
1268
Humboldt
Along the lane below the W.M. Lanphere Home, Samoa Peninsula
Comment
UCD58512
Bromus diandrus
Linda M. Barker
1976-4-30
1403
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC38930
Bromus hordeaceus
Linda M. Barker
1976-5-13
1477
Humboldt
3 mi. W of Arcata
Comment
HSC40343
Bromus hordeaceus
Linda M. Barker
1976-8-24
1681
Humboldt
3 mi. W of Arcata
Comment
HSC9239
Bromus hordeaceus
T. L. Ackerman
1964-5-7
41
Humboldt
1.5 mi. W from Sweesey dam
Comment
HSC9246
Bromus hordeaceus
L. H. Myers
1963-5-17
36
Humboldt
W of Lanpheres Rd., Mad River slough area
Comment
UCD58705
Bromus hordeaceus
Linda M. Barker
1976-5-13
1477
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
BLMAR307
Cakile edentula subsp. californica
Jennifer Anthony-Wheeler
2002-6-24
307
Humboldt
Manilla Dunes, Manila dunes rec. area
3
Comment Read comments Apr 14 2014
UCR37862
Cakile edentula subsp. edentula
D. Gordon
1982-9-23
s.n.
Humboldt
Northern Coast, Lanphere-Christensen Dunes Preserve, 3 mi west of Arcata
Comment
CHSC10120
Cakile maritima
J. W. Johnson
1962-4-29
1299
Humboldt
Arcata. W.M. Lanphere Farm, Samoa Peninsula.
Comment
CHSC10127
Cakile maritima
J. W. Johnson
1961-11-29
1415
Humboldt
Arcata. At the end of ridge 3, Christenson Farm, Samoa Peninsula.
Comment
HSC39981
Cakile maritima
Linda M. Barker
1976-4-30
1418
Humboldt
3 mi. W of Arcata
Comment
HSC39982
Cakile maritima
Linda M. Barker
1976-6-22
1628
Humboldt
3 mi. W of Arcata
Comment
HSC40408
Cakile maritima
Linda M. Barker
1976-6-22
1627
Humboldt
3 mi. W of Arcata
Comment
HSC49024
Cakile maritima
Patricia Shesgreen
1978-8-19
143
Humboldt
Mad River Beach, Arcata
Comment
UCD114940
Cakile maritima
Linda M. Barker
1976-4-30
1418
Humboldt
3 miles west of Arcata.
Comment
UCD114941
Cakile maritima
Linda M. Barker
1976-6-22
1628
Humboldt
3 miles west of Arcata.
Comment
UCD114943
Cakile maritima
Linda M. Barker
1976-9-3
1694
Humboldt
3 miles west of Arcata.
Comment
HSC17632
Calandrinia ciliata
J. W. Johnson
1962-4-10
1240
Humboldt
Arcata, Christenson Farm, Samoa Peninsula.
Comment
HSC90224
Calandrinia ciliata
L. Watson, J. Meninga
Mar 1991
19
Humboldt
Near Manila, Mad River Slough and Dunes, SW edge of parking lot
Comment
HSC59492
Callitriche stagnalis
M. A. Ericksen
1979-4-22
216
Humboldt
1 mi. W of intersection of Mad River Rd. and Iverson, Arcata bottoms, city of Arcata
Comment
HSC62990
Callitriche stagnalis
David Wheeler
1979-4-22
80
Humboldt
Mad River Slough, 1 mi. W of intersection of Mad River Rd. and Iverson Rd.
Comment
HSC16572
Calypso bulbosa
Norman H. Moe
1962-4-26
Humboldt
Lanphere's Place
Comment
HSC16574
Calypso bulbosa
R.. A. Rasp
1964-5-20
42
Humboldt
4 mi. W of Arcata off Lanphere Rd. on Lanphere ranch
Comment
HSC39966
Calypso bulbosa
Linda M. Barker
1976-3-22
1347
Humboldt
3 mi. W of Arcata
Comment
RSA725961
Calypso bulbosa var. occidentalis
Richard G. Swinney
1968-4-5
241
Humboldt
North Coast: Lanpheres Preserve, west of Arcata.
3
Comment
UCD138886
Calypso bulbosa var. occidentalis
Linda M. Barker
1976-3-22
1347
Humboldt
Lanphere-Christensen Dunes, 3 miles west of Arcata.
Comment
UCR178929
Calypso bulbosa var. occidentalis
R. G. Swinney
1968-4-5
241
Humboldt
North Coast, Lanphere's Preserve, west of Arcata
15
Comment
SEINET200997
Calystegia
J. P Tracy
1901-8-7
1274
Humboldt
Sand hills of Ocean Beach at Samoa Opp. Eureka
Comment
HSC40941
Calystegia soldanella
Linda M. Barker
1976-6-1
1559
Humboldt
3 mi. W of Arcata
Comment
HSC44614
Calystegia soldanella
Laura Witherspoon
1977-5-25
Humboldt
Manila
Comment
HSC6363
Calystegia soldanella
J. W. Johnson
1962-6-4
1413
Humboldt
Arcata, W.M. Lanphere Farm, Samoa peninsula
Comment
HSC6364
Calystegia soldanella
J. W. Johnson
1961-8-17
1021
Humboldt
W.M. Lanphere Farm, Samoa Peninsula
Comment
UC1197873
Calystegia soldanella
J. P. Tracy
1900-7-4
882
Humboldt
sand hills of Ocean Beach at Samoa (opp. Eureka); Ocean Beach at Samoa, opp. Eureka
Comment
UC153985
Calystegia soldanella
J. P. Tracy
1901-8-7
1274
Humboldt
sand hills of Ocean Beach at Samoa (opp. Eureka); , opp. Eureka
Comment
UCD126159
Calystegia soldanella
Linda M. Barker
1976-6-1
1559
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
UCD126163
Calystegia soldanella
Roman Gankin
1965-8-6
559
Humboldt
1.3 miles south of Samoa, Samoa Peninsula.
Comment
UCD126164
Calystegia soldanella
Roman Gankin
1965-8-6
559
Humboldt
1.3 miles south of Samoa, Samoa Peninsula.
Comment
GH367579
Camissonia cheiranthifolia
J. P. Tracy
1909-7-18
3017
Unknown
Ocean Beach at Samoa, Opp. Eureka
Comment
HSC16437
Camissonia cheiranthifolia
J. W. Johnson
1961-9-4
1104
Humboldt
Christenson Farm, Samoa Peninsula, Arcata.
Comment
HSC16442
Camissonia cheiranthifolia
J. W. Johnson
1961-8-17
1044
Humboldt
Arcata, W.M. Lanphere Farm, Samoa Peninsula.
Comment
HSC16446
Camissonia cheiranthifolia
L. H. Myers
1963-5-13
18
Humboldt
W of Lanpheres Rd., Mad River slough area
Comment
HSC99216
Camissonia cheiranthifolia
Linda M. Barker
1976-5-13
1492
Humboldt
Lanphere-Christensen Dunes; 3 mi. W of Arcata
Comment
RSA186629
Camissonia contorta
Peter H. Raven
1963-5-15
18373
Humboldt
Lanphere Ranch just west of Mad River Slough, near Arcata.
Comment
HSC16464
Camissonia strigulosa
Norman H. Moe
1962-5-17
Humboldt
Lanphere's Place
Comment Read comments Dec 14 2019
HSC36594
Camissonia strigulosa
K. Irwin
1976-4-17
Humboldt
1/2 mi. S of Lamphere Nature Conservancy next to Mad River Slough
Comment
HSC40377
Camissonia strigulosa
Linda M. Barker
1976-4-30
1406
Humboldt
3 mi. W of Arcata
Comment
CDA18242
Camissoniopsis cheiranthifolia
G. D. Barbe, T. C. Fuller
1974-6-19
1880
Humboldt
North Coast Ranges; Mad River mouth, beach S of river, at end of Iversen Lane, Tyee City.
30
Comment
UCD103508
Camissoniopsis cheiranthifolia
Linda M. Barker
1976-5-13
1492
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
CHSC10102
Camissoniopsis cheiranthifolia subsp. cheiranthifolia
J. W. Johnson
1961-8-17
1044
Humboldt
Arcata. Sand dune fields, Lanphere Farm.
Comment
CAS-BOT-BC37434
Cardamine californica
Lincoln Constance; Reed Clark Rollins
1942-5-20
2998
Humboldt
Eel River, 1 mile north of Pepperwood.
45
Comment
CAS-BOT-BC37435
Cardamine californica
Lincoln Constance; Reed Clark Rollins
1942-5-20
2998
Humboldt
Eel River, 1 mile north of Pepperwood.
45
Comment
HSC6683
Cardamine californica
Lincoln Constance, R. C. Rollins
1942-5-20
2998
Humboldt
Eel River, 1 mi. N of Pepperwood
46
Comment
HSC6694
Cardamine californica
J. L. Baker
1965-4-12
43
Humboldt
4 mi. N of Arcata on North Bank Rd.
Comment
UC673283
Cardamine californica
Lincoln Constance and Reed C. Rollins
1942-5-20
2998
Humboldt
Eel River 1 mi n Pepperwood; Klamath-Siskiyou Region, Eel River n of Pepperwood
45
Comment
GH379009
Cardamine californica var. sinuata
L. Constance & R. C. Rollins
1942-5-20
2998
Unknown
Eel River 1 mile north of Pepperwood
45
Comment
HSC39987
Cardamine oligosperma
Linda M. Barker
1976-3-22
1338
Humboldt
3 mi. W of Arcata
Comment
HSC40428
Cardamine oligosperma
Linda M. Barker
1976-3-11
1325
Humboldt
3 mi. W of Arcata
Comment
HSC90227
Cardamine oligosperma
L. Watson, J. Meninga
Mar 1991
13
Humboldt
Near Manila, Mad River slough and dunes, SW edge of parking lot.
Comment
UCD114535
Cardamine oligosperma
Linda M. Barker
1976-2-22
1317
Humboldt
Lanphere-Christensen Dunes, 3 miles west of Arcata.
Comment
CDA18240
Cardionema ramosissimum
G. D. Barbe, T. C. Fuller
1974-6-19
1878
Humboldt
North Coast Ranges; Mad River mouth, at end of Iversen Lane, Tyee City.
7
Comment
HSC39963
Cardionema ramosissimum
Linda M. Barker
1976-4-13
1386
Humboldt
3 mi. W of Arcata
Comment
HSC4143
Cardionema ramosissimum
Norman H. Moe
1962-5-23
Humboldt
Lanphere's Place
Comment
UCD150620
Cardionema ramosissimum
Linda M. Barker
1976-4-13
1386
Humboldt
3 miles west of Arcata.
Comment
UC50821
Carex harfordii
J. P. Tracy
1900-7-4
873
Humboldt
opposite Eureka (sand hills of Ocean Beach); Samoa
Comment
CHSC10107
Carex obnupta
J. W. Johnson
1961-8-17
1055
Humboldt
Hollow 10, W.M. Lanphere Farm, Samoa Peninsula.
Comment
HSC104103
Carex obnupta
Kyle Brown
2015-4-25
45
Humboldt
Arcata, along trail at Mad River
15
Comment
HSC40257
Carex obnupta
Linda M. Barker
1976-4-30
1421
Humboldt
3 mi. W of Arcata
Comment
HSC40258
Carex obnupta
Linda M. Barker
1976-4-30
1417
Humboldt
3 mi. W of Arcata
Comment
HSC7071
Carex obnupta
J. W. Johnson
1961-9-3
1081
Humboldt
Arcata, Christenson Farm, Samoa Peninsula
Comment
SDSU11682
Carex obnupta
D. F. Howe
1961-8-1
Humboldt
3 miles north of Arcata on #101
Comment
UCD140704
Carex obnupta
Linda M. Barker
1976-4-30
1421
Humboldt
3 miles west of Arcata.
Comment
UCD140708
Carex obnupta
Linda M. Barker
1976-4-30
1417
Humboldt
3 miles west of Arcata.
Comment
HSC39964
Carpobrotus chilensis
Linda M. Barker
1976-3-22
1343
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata.
Comment
UCD96823
Carpobrotus chilensis
Linda M. Barker
1976-3-22
1343
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC20839
Castilleja ambigua subsp. humboldtiensis
D. E. Anderson
1962-5-10
2208
Humboldt
Lanphere's
Comment
HSC36101
Castilleja ambigua subsp. humboldtiensis
W. C. Vinyard
1974-5-22
Humboldt
Beside Humboldt Bay at the boat access at Arcata
Comment
HSC78957
Castilleja ambigua subsp. humboldtiensis
L. P. Janeway
1984-4-28
749
Humboldt
Arcata Bottoms; at westernmost contact of Jackson Ranch Rd. with Liscom Slough
2
Comment
HSC91171
Castilleja ambigua subsp. humboldtiensis
Leonel Arguello
1989-6-11
Humboldt
Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata
Comment
HSC95070
Castilleja ambigua subsp. humboldtiensis
Lila Tauzer
2002-5-3
45
Humboldt
Arcata Marsh
0
Comment
JEPS76823
Castilleja ambigua subsp. humboldtiensis
L. R. Heckard with T. I. Chuang and R. C. Bacigalupi
1978-5-27
4804
Humboldt
about 1.2 mi n Eureka bridge (Samoa peninsula); Samoa peninsula
Comment
JEPS76824
Castilleja ambigua subsp. humboldtiensis
L. R. Heckard with T. I. Chuang and R. C. Bacigalupi
1978-5-27
4804
Humboldt
about 1.2 mi n Eureka bridge (Samoa peninsula); Samoa peninsula
Comment
CHSC95387
Castilleja exserta
C. Sander
2005-8-16
CA 330 -81
Humboldt
Ecoregion 14. Humboldt County. Manila Dunes ACEC.
3
Comment
JEPS108698
Castilleja exserta
C. Sander
2005-8-16
CA 330 81
Humboldt
Manila Dunes
3
Comment
UCD122407
Castilleja exserta
C. Sander
2005-8-16
CA 330 -81
Humboldt
Ecoregion 14. Manila Dunes ACEC.
3
Comment
HSC40935
Castilleja exserta subsp. latifolia
Linda M. Barker
1976-6-1
1545
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata.
Comment
JEPS76826
Castilleja exserta subsp. latifolia
L. R. Heckard with T. I. Chuang and R. C. Bacigalupi
1978-5-27
4805
Humboldt
beach of Manila Manila; Samoa Peninsula, beach at Manila
Comment
UCD122467
Castilleja exserta subsp. latifolia
Linda M. Barker
1976-6-1
1545
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC39961
Cerastium glomeratum
Linda M. Barker
1976-4-13
1381
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata
Comment
HSC59048
Cerastium glomeratum
Thomas Wood
1979-4-4
94
Humboldt
Near Arcata, 3/4 mi. W on Lanphere Rd. after triple intersection with Upper Bay Rd. and Mad River Rd.
Comment
UCD98024
Cerastium glomeratum
Linda M. Barker
1976-4-13
1381
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
UCD103625
Chamerion angustifolium
Linda M. Barker
1976-8-24
1682
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC40253
Chamerion angustifolium subsp. circumvagum
Linda M. Barker
1976-8-24
1682
Humboldt
3 mi. W of Arcata
Comment
HSC40250
Chenopodium album
Linda M. Barker
1976-6-22
1629
Humboldt
3 mi. W of Arcata
Comment
UCD97746
Chenopodium album
Linda M. Barker
1976-6-22
1629
Humboldt
Coastal forest and dunes 3 miles west of Arcata.
Comment
UCD97749
Chenopodium album
Linda M. Barker
1976-8-24
1680
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC40249
Chenopodium polyspermum
Linda M. Barker
1976-8-24
1680
Humboldt
3 mi. W of Arcata
Comment
HSC29730
Chimaphila umbellata
J. D. Ackerman, A. M. Montalvo
1973-6-29
68
Humboldt
2 mi. N of Manila
Comment
HSC40968
Chimaphila umbellata
Linda M. Barker
1976-6-14
1597
Humboldt
3 mi. W of Arcata, Lanphere-Christensen Dunes
Comment
UCD117377
Chimaphila umbellata
Linda M. Barker
1976-6-14
1597
Humboldt
3 miles west of Arcata.
Comment
JEPS79874
Cirsium arvense
Joseph P. Tracy
1933-8-13
12963
Humboldt
Arcata Bottom
15
Comment
UC582529
Cirsium arvense
Joseph P. Tracy
1933-8-13
12962
Humboldt
Arcata Bottom
15
Comment
UC582530
Cirsium arvense
Joseph P. Tracy
1933-8-13
12963
Humboldt
Arcata Bottom
15
Comment
HSC40956
Cirsium vulgare
Linda M. Barker
1976-8-24
1684
Humboldt
3 mi. W of Arcata
Comment
UCD130811
Cirsium vulgare
Linda M. Barker
1976-8-24
1684
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC33074
Claytonia exigua subsp. exigua
Thomas W. Nelson, Jim Ackerman
1974-5-14
1263
Humboldt
Beside the old Samoa-Crannel railbed N of Samoa, along the Mad River Slough
Comment
HSC36519
Claytonia exigua subsp. exigua
J. D. Ackerman, A. M. Montalvo
1973-3-27
48
Humboldt
1.5 mi. N of Manila
6
Comment
HSC90228
Claytonia perfoliata
L. Watson, J. Meninga
Mar 1991
15
Humboldt
Near Manila, Mad River slough and dunes, SW edge of parking lot.
Comment
HSC39940
Claytonia rubra subsp. depressa
Linda M. Barker
1976-3-22
1336
Humboldt
3 mi. W of Arcata
Comment
HSC39941
Claytonia rubra subsp. depressa
Linda M. Barker
1976-2-22
1316
Humboldt
3 mi. W of Arcata
Comment
HSC39958
Claytonia rubra subsp. depressa
Linda M. Barker
1976-4-13
1378
Humboldt
3 mi. W of Arcata
Comment
UCD100844
Claytonia rubra subsp. depressa
Linda M. Barker
1976-2-22
1316
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
UCD100846
Claytonia rubra subsp. depressa
Linda M. Barker
1976-2-22
1318
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
UCD100848
Claytonia rubra subsp. depressa
Linda M. Barker
1976-4-13
1378
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC39957
Clinopodium douglasii
Linda M. Barker
1976-6-22
1613
Humboldt
3 mi. W of Arcata
Comment
HSC95091
Clinopodium douglasii
Andrea Pickart
2002-6-30
134
Humboldt
Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge
30
Comment
UCD124939
Clinopodium douglasii
Linda M. Barker
1976-6-22
1614
Humboldt
Lanphere-Christensen Dunes, 3 miles west of Arcata.
Comment
CDA3701
Coincya monensis
Jim Belsher
1997-2-13
2
Humboldt
Lot ESE of the Manila Community Services District sewage pump station
Comment
CHSC70001
Coincya monensis
Jim Belsher
1997-2-13
1
Humboldt
Collected in the lot East Southeast of the Manila Community Services District sewage pump station. Empty lot.
6
Comment
CHSC79480
Coincya monensis
Jim Belsher
1997-2-13
1
Humboldt
Collected in the lot East Southeast of the Manila Community Services District sewage pump station.
6
Comment
SEINET8056110
Coincya monensis
Unknown
1997-2-13
1
Humboldt
Eureka Quad
Comment
UCR139132
Coincya monensis
Jim Belsher
1997-2-13
01
Humboldt
Lot ESE of the Manila Community Services District sewage pump station
6
Comment
HSC100286
Coincya monensis subsp. recurvata
J. P. Smith, J. O. Sawyer
2011-4-24
13113
Humboldt
Manila; Fence row along Lupin Rd. at the Manila Community Service District Office.
4
Comment
UCD114621
Coincya monensis subsp. recurvata
Jim Belsher
1997-2-13
1
Humboldt
collected in the lot East Southeast of Manila Community Services District sewage pump station.
6
Comment
HSC38447
Cordylanthus maritimus subsp. palustris
J. P. Smith
1976-7-3
8936
Humboldt
Manila, Samoa Peninsula
Comment
HSC95093
Cordylanthus maritimus subsp. palustris
Andrea Pickart
2002-6-27
123
Humboldt
Mad River Slough and Dunes, N of parking area at N end of access road.
0
Comment
HSC95574
Cordylanthus maritimus subsp. palustris
Andrea Pickart
2002-7-19
177
Humboldt
Arcata Marsh at end of I St.
0
Comment
JEPS55932
Cordylanthus maritimus subsp. palustris
T. I. Chuang, L. R. Heckard and R. Bacigalupi
1968-7-3
6455
Humboldt
Coastal Salt Marsh, ne edge Arcata Bay
Comment
CAS-BOT-BC101138
Corethrogyne filaginifolia
D. M. Gordon
1982-9-20
s.n.
Humboldt
End of county road (Lanphere Rd.) on Hunt property. Lanphere-Christensen Dunes Preserve, 3 miles west of Arcata
Comment
CAS-BOT-BC101140
Corethrogyne filaginifolia
D. M. Gordon
1982-9-20
s.n.
Humboldt
End of county road (Lanphere Rd.) on Hunt property. Lanphere-Christensen Dunes Preserve, 3 miles west of Arcata
Comment
CAS-BOT-BC101145
Corethrogyne filaginifolia
Joseph P. Tracy
1936-8-17
15157
Humboldt
Arcata Bottom
15
Comment
HSC75232
Corethrogyne filaginifolia
D. M. Gordon
1982-9-20
Humboldt
End of country road (Lanphere Rd.)on Hunt property. Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata
Comment
JEPS41846
Corethrogyne filaginifolia
W. L. Jepson
1936-8-17
17931
Humboldt
Arcata
Comment
UC581781
Corethrogyne filaginifolia
J. P. Tracy
1936-8-17
15157
Humboldt
bottom Arcata
15
Comment
HSC93465
Cortaderia selloana
Gordon Leppig, Kai Neander
1998-10-12
1104
Humboldt
McKinleyville, empty lot on School Rd., behind Mill Creek Shopping Center
30
Comment
UCD130891
Cotula coronopifolia
Linda M. Barker
1976-7-5
1638
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
SD148248
Crepis capillaris
G. K. Helmkamp, E. A. Helmkamp
2001-7-8
6998
Humboldt
North coastan strand; north spit of Samoa Peninsula, 0.5 mile north of California Highway 255 bridge over Humboldt Bay.
6
Comment
UC1787277
Crepis capillaris
G. K. Helmkamp, E. A. Helmkamp
2001-7-8
6998
Humboldt
North coastal strand.: North spit of Samoa Peninsula, 0.5 mi N of CA-225 bridge over Humboldt Bay.
6
Comment
CHSC10140
Cryptantha leiocarpa
J. W. Johnson
1962-4-10
1237
Humboldt
Arcata. West slope of Ridge 3 behind the foredunes. Christenson Farm, Samoa Penisula.
Comment
HSC40305
Cryptantha leiocarpa
Linda M. Barker
1976-4-30
1407
Humboldt
3 mi. W of Arcata
Comment
SDSU19212
Cryptantha leiocarpa
Michael G. Simpson, John Sawyer and Michael Mayer
2008-5-30
3032
Humboldt
Lanphere Dunes, ca. 3.0 miles north-northeast of Manila.
2
Comment
UCD119870
Cryptantha leiocarpa
Linda M. Barker
1976-4-30
1419
Humboldt
Lanphere-Christensen Dunes, 3 miles west of Arcata.
Comment
HSC89900
Cuscuta pacifica var. pacifica
Leonel Arguello
1989-9-9
Humboldt
Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata
Comment
HSC100845
Cynodon dactylon
J. P. Smith, J. O. Sawyer
2009-10-4
12687
Humboldt
Edge of parking lot at Ma-Le'l Dunes BLM Co-op Management Area
7
Comment
HSC40373
Cytisus scoparius
Linda M. Barker
1976-3-11
1322
Humboldt
3 mi. W of Arcata
Comment
HSC47796
Dactylis glomerata
M. A. Watkins
1978-6-10
3
Humboldt
East side of the 7th Street overpass of Hwy 101
Comment
UCSC000025
Dactylis glomerata
H. S. Yates
1936-6-23
5852
Humboldt
2 miles E. of the Mad River Mad River - Eureka
30
Comment
JEPS14240
Daucus carota
Joseph P. Tracy
1932-9-16
10796
Humboldt
near the mouth Mad R.
30
Comment
UC642295
Daucus carota
Joseph P. Tracy
1932-9-16
10796
Humboldt
near mouth Mad River
30
Comment
HSC38645
Daucus pusillus
J. P. Smith, J. O. Sawyer
1975-5-31
8147
Humboldt
Growing in Samoa Peninsula in wooded area just E of the Eureka-Samoa bridge
Comment
HSC38938
Daucus pusillus
Linda M. Barker
1976-5-13
1486
Humboldt
3 mi. W of Arcata.
Comment
SEINET3823243
Daucus pusillus
J. P. Tracy
1909-7-18
3021
Humboldt
Sand Hills of Ocean Beach at Samoa, opp. Eureka
Comment
UC154245
Daucus pusillus
J. P. Tracy
1900-7-4
887
Humboldt
Ocean Beach at Samoa opposite Eureka
Comment
UC154249
Daucus pusillus
J. P. Tracy
1909-7-18
3021
Humboldt
sand hills of Ocean Beach at Samoa opposite Eureka
Comment
UCD127407
Daucus pusillus
Linda M. Barker
1976-5-13
1486
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC40248
Deschampsia cespitosa
Linda M. Barker
1976-7-5
1645
Humboldt
3 mi. W of Arcata.
Comment
HSC9587
Deschampsia cespitosa
D. J. McVean
1965-5-22
82
Humboldt
Dike by Mad River Slough, just N of Somoa Blvd.
Comment
UCD61243
Deschampsia cespitosa
Linda M. Barker
1976-7-5
1645
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
CHSC1743
Digitalis purpurea
M. Anthony
1960-5-14
Humboldt
N. of Arcata, Highway 101.
Comment
HSC26885
Digitaria sanguinalis
Brad Klipfel
1973-7-24
222
Humboldt
Mad River flood plain, N end of Carson RR Bridge.
Comment
CDA18241
Distichlis spicata
G. D. Barbe, T. C. Fuller
1974-6-19
1879
Humboldt
North Coast Ranges; Mad River mouth, beach S of river, at end of Iversen Lane, Tyee City.
7
Comment
HSC90915
Distichlis spicata
Leonel Arguello
1989-7-15
Humboldt
Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata, Saltmarsh trail.
Comment
HSC90953
Distichlis spicata
Leonel Arguello
1989-7-15
Humboldt
Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata, Saltmarsh trail.
Comment
HSC93509
Distichlis spicata
Gordon Leppig, Sylvia Leppig
1998-9-17
1101
Humboldt
Arcata Marsh and Wildlife Sanctuary, W of railroad trestle.
Comment
HSC9630
Distichlis spicata
J. A. Waller
1965-5-21
48
Humboldt
Salt Marsh off of Samoa Rd.
Comment
HSC9631
Distichlis spicata
J. D. Wilder
1965-5-19
46
Humboldt
Along Humboldt Bay, N end.
Comment
HSC9632
Distichlis spicata
J. M. Johnson
1962-7-29
Humboldt
On dike beside Mad River slough, W.M. Lanphere Farm, Samoa peninsula.
Comment
HSC9633
Distichlis spicata
D. J. McVean
1965-5-22
83
Humboldt
Along slough just W of Jackson Rd., 1/4 mi. N of Samoa Rd.
Comment
HSC975
Dryopteris arguta
R. I. Bonn
1965-5-9
49
Humboldt
4 mi. W of Arcata on Lanphere Rd.
Comment
HSC39049
Eleocharis macrostachya
Linda M. Barker
1976-6-22
1621
Humboldt
3 mi. W of Arcata
Comment
HSC77865
Eleocharis parvula
L. J. Heflin
1984-5-13
5
Humboldt
Hauser Marsh
Comment
UCR21761
Eleocharis parvula
Denis Kearns
1979-8-24
210
Humboldt
North Coast, near the Arcata Boat Launching Facility at the south end of 'I' Street
1
Comment
UCSB34194
Eleocharis parvula
Kearns, Dennis
1979-8-24
Humboldt
Near the Arcata Boat Launching Facility at the South end of "I" Street
Comment
RSA129273
Elymus glaucus
H. S. Yates
1936-6-23
5856
Humboldt
2 miles S.E. of mouth of Mad River
30
Comment
HSC89898
Elymus glaucus subsp. glaucus
Leonel Arguello
1989-7-14
Humboldt
Lanphere-Christensen Dunes Preserve 3 mi. W of Arcata.
Comment
HSC10936
Elymus mollis subsp. mollis
J. W. Johnson
1962-4-29
1297
Humboldt
W.M Lanphere Farm, Samoa Peninsula, Arcata.
Comment
HSC10938
Elymus mollis subsp. mollis
J. W. Johnson
1962-4-29
1297
Humboldt
W.M. Lanphere Farm, Samoa Peninsula, Arcata.
Comment
HSC38942
Elymus mollis subsp. mollis
Linda M. Barker
1976-6-1
1563
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata.
Comment
HSC9726
Elymus mollis subsp. mollis
J. W. Johnson
1962-4-29
1297
Humboldt
W.M. Lanphere Farm, Samoa Peninsula, Arcata.
Comment
RSA668413
Epilobium angustifolium var. macrophyllum
Thomas W Stark
1967-7-18
79
Humboldt
West side of U.S. Rt. 101, 1 miles south of town of McKinleyville
61
Comment
UC1197010
Epilobium ciliatum subsp. ciliatum
J. P. Tracy
1909-9-19
3098
Humboldt
opp. Eureka (ocean beach); Samoa
Comment
HSC39947
Epilobium ciliatum subsp. watsonii
Linda M. Barker
1976-7-5
1637
Humboldt
3 mi. W of Arcata
Comment
UCD105925
Epilobium ciliatum subsp. watsonii
Linda M. Barker
1976-7-5
1637
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC99644
Equisetum telmateia subsp. braunii
L. Watson, J. Meninga
Mar 1991
22
Humboldt
Near Manilla, Mad River Slough and Dunes, 0.5 mi. N of parking lot, E of trail
Comment
HSC39978
Erechtites glomeratus
Linda M. Barker
1976-7-5
1634
Humboldt
3 mi. W of Arcata.
Comment
HSC39954
Erigeron glaucus
Linda M. Barker
1976-6-22
1616
Humboldt
3 mi. W of Arcata
Comment
HSC5524
Erigeron glaucus
J. W. Johnson
1961-8-17
1036
Humboldt
Dune fields of W.M. Lanphere Farm, Samoa Peninsula
Comment
UCD132006
Erigeron glaucus
Linda M. Barker
1976-6-22
1616
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
RSA121418
Erigeron philadelphicus
H. S. Yates
1936-6-23
5855
Humboldt
2 miles S.E. of mouth of Mad River
30
Comment
UC573410
Erigeron philadelphicus var. philadelphicus
H. S. Yates
1936-6-23
5855
Humboldt
2 mi se of mouth Mad River; Eureka Quad.
30
Comment
CDA18207
Eriogonum latifolium
G. D. Barbe, T. C. Fuller
1974-6-17
1833
Humboldt
North Coast Ranges; Lower Pacific Drive, S of sewage plant, W of golf course, at Sea Court, Shelter Cove.
60
Comment
CDA18250
Eriogonum latifolium
G. D. Barbe, T. C. Fuller
1974-6-19
1876
Humboldt
North Coast Ranges; Mad River mouth, beach S of river, at end of Iversen Lane, Tyee City.
7
Comment
CHSC10122
Eriogonum latifolium
J. W. Johnson
1961-8-17
1040
Humboldt
Arcata. W. M. Lanphere Farm, Samoa Peninsula. On stabilized sand, dune fields.
Comment
HSC17293
Eriogonum latifolium
J. W. Johnson
1961-8-17
1040
Humboldt
Arcata, W.M. Lanphere Farm, Samoa Peninsula.
Comment
HSC17296
Eriogonum latifolium
R. I. Bonn
1965-5-7
25
Humboldt
4 mi. W of Arcata on Lanphere Rd.
Comment
HSC39955
Eriogonum latifolium
Linda M. Barker
1976-6-22
1615
Humboldt
3 mi. W of Arcata
Comment
UCD100327
Eriogonum latifolium
Linda M. Barker
1976-6-22
1615
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
UCR18930
Eriogonum latifolium
Charlotte M. Hoak
1931-7-14
s.n.
Humboldt
Sand Dunes above Eureka
13
Comment
CAS-BOT-BC301689
Eriophyllum lanatum var. lanceolatum
Lincoln Constance; Reed C. Rollins
1942-5-12
2890
Humboldt
Klamath-Siskiyou Region. Klamath River 12 miles north of Weitchpec
121
Comment
HSC39965
Erysimum menziesii
Linda M. Barker
1976-3-22
1342
Humboldt
3 mi. W of Arcata
Comment
HSC6789
Erysimum menziesii
J. W. Johnson
1962-4-1
1414
Humboldt
Samoa Peninsula, in a hollow behind the foredunes, near Dune 5, Christenson Farm.
Comment
UCD115016
Erysimum menziesii
Linda M. Barker
1976-4-13
1384
Humboldt
3 miles west of Arcata.
Comment
UCR179237
Erysimum menziesii
R. G. Swinney
1968-4-3
240
Humboldt
North Coast, Lanphere's Preserve, west of Arcata
15
Comment
JEPS73678
Euphorbia helioscopia
Dr. Lamphere
1939-3-25
Humboldt
near mouth of Mad River; near mouth of Mad River
9
Comment
UCR94919
Euphorbia helioscopia
D. L. Koutnik
1996-7-3
s.n.
Humboldt
Manila.
Comment
HSC40339
Festuca arundinacea
Linda M. Barker
1976-6-1
1566
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata.
Comment
HSC40969
Festuca occidentalis
Linda M. Barker
1976-6-14
1598
Humboldt
3 mi. W of Arcata
Comment
UCD66174
Festuca occidentalis
Linda M. Barker
1976-6-14
1598
Humboldt
Coastal forest and dunes 3 miles west of Arcata.
Comment
BLMAR435
Festuca rubra
Jennifer Anthony-Wheeler
2008-6-18
435
Humboldt
Samoa/Malel Dunes
9
Comment
HSC39052
Festuca rubra
Linda M. Barker
1976-6-22
1617
Humboldt
3 mi. W of Arcata
Comment
HSC83339
Festuca rubra
Andrea Pickart
1987-6-26
Humboldt
Arcata, Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata.
Comment
HSC95257
Festuca rubra
Andrea Pickart
2002-7-3
152
Humboldt
Big Dune, Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge
24
Comment
HSC9975
Festuca rubra
R. I. Bonn
1965-5-7
24
Humboldt
4 mi. W of Arcata on Lanphere Rd.
Comment
UCD66367
Festuca rubra
Linda M. Barker
1976-6-22
1617
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC27562
Fragaria X ananassa
J. D. Ackerman, A. M. Montalvo
1973-3-27
39
Humboldt
1.5 mi. N of Manila
Comment
HSC39972
Fragaria X ananassa
Linda M. Barker
1976-3-22
1335
Humboldt
3 mi. W of Arcata
Comment
HSC40975
Fragaria X ananassa
Linda M. Barker
1976-6-14
1590
Humboldt
3 mi. W of Arcata
Comment
UCD113170
Fragaria ananassa subsp. cuneifolia
Linda M. Barker
1976-6-14
1590
Humboldt
3 miles west of Arcata.
Comment
HSC18620
Fragaria chiloensis
R. A. Rasp
1964-5-20
49
Humboldt
4 mi. W of Arcata off Lanphere Rd. on Lanphere Ranch
Comment
HSC18623
Fragaria chiloensis
J. W. Johnson
1962-4-29
1300
Humboldt
W.M. Lanphere Farm, Samoa Peninsula, Arcata.
Comment
HSC18624
Fragaria chiloensis
J. W. Johnson
1961-8-17
1015
Humboldt
Arcata, W.M. Lanphere Farm, Samoa Peninsula.
Comment
HSC95822
Fragaria chiloensis
Steven Lee
2004-3-23
5
Humboldt
Manila Dunes, Vera Ln. Dune Community
Comment
UCD113172
Fragaria chiloensis
Linda M. Barker
1976-3-11
1324
Humboldt
3 miles west of Arcata.
Comment
HSC39943
Frangula purshiana
Linda M. Barker
1976-7-5
1648
Humboldt
3 mi. W of Arcata.
Comment
UCD112819
Frangula purshiana
Linda M. Barker
1976-7-5
1648
Humboldt
Lanphere-Christensen Dunes 3 miles west of Arcata.
Comment
HSC33079
Fritillaria affinis
Thomas W. Nelson, J. D. Ackerman
1974-5-14
1268
Humboldt
Beside old Samoa-Crannell railroad bed adjacent to the Mad River Slough N of Emerson Mill
Comment
HSC100105
Fumaria capreolata
J. P. Smith
2010-4-7
12724
Humboldt
Along Fischer Rd., S of junction with School Rd. in McKinleyville
8
Comment
HSC40954
Galium aparine
Linda M. Barker
1976-6-14
1601
Humboldt
3 mi. W of Arcata
Comment
HSC95075
Galium aparine
Andrea Pickart
2002-6-30
133
Humboldt
Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge
0
Comment
UCD121621
Galium aparine
Linda M. Barker
1976-6-14
1601
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC40955
Galium triflorum
Linda M. Barker
1976-7-5
1649
Humboldt
3 mi. W of Arcata.
Comment
UCD121943
Galium triflorum
Linda M. Barker
1976-7-5
1649
Humboldt
Lanphere-Christensen Dunes, 3 miles west of Arcata.
Comment
HSC33077
Gamochaeta ustulata
Thomas W. Nelson, Jim Ackerman
1974-5-14
1266
Humboldt
Beside old Samoa-Crannell railroad bed adjacent to the Mad River Slough N of Emerson Mill
Comment
HSC40952
Gamochaeta ustulata
Linda M. Barker
1976-7-5
1539
Humboldt
3 mi. W of Arcata.
Comment
UCD132373
Gamochaeta ustulata
Linda M. Barker
1976-7-5
1539
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
CHSC19502
Garrya elliptica
Gene S. Van Horn
1963-1-5
35
Humboldt
On W. M. Lanphere's ranch
9
Comment
HSC22830
Garrya elliptica
Gene S. Van Horn
1963-1-5
35
Humboldt
On W.M. Lanphere's ranch
9
Comment
HSC39952
Garrya elliptica
Linda M. Barker
1976-1-24
1310
Humboldt
3 mi. W of Arcata
Comment
HSC39953
Garrya elliptica
Linda M. Barker
1976-1-24
1309
Humboldt
3 mi. W of Arcata
Comment
HSC40406
Garrya elliptica
Linda M. Barker
1976-3-22
1339
Humboldt
3 mi. W of Arcata
Comment
HSC8391
Garrya elliptica
D. E. Anderson
1962-1-4
1908
Humboldt
Lanphere's
Comment
HSC90216
Garrya elliptica
Louise Watson, Jan Meninga
Feb 1991
4
Humboldt
Mad Rive Slough and Dunes, Cooperative Management area, 1/3mi from parking lot W of trail
Comment
RSA183514
Garrya elliptica
R. I. Bonn
1965-3-5
3
Humboldt
Four miles west of Arcata on Lanphere Road.
Comment
UC1215539
Garrya elliptica
Gene S. Van Horn
1963-1-5
35
Humboldt
W. M. Lanphere's ranch
9
Comment
UCD121099
Garrya elliptica
Linda M. Barker
1976-1-24
1310
Humboldt
Coastal forest and dunes 3 miles west of Arcata.
Comment
UCD121101
Garrya elliptica
Linda M. Barker
1976-1-24
1309
Humboldt
Coastal forest and dunes 3 miles west of Arcata.
Comment
UCD121106
Garrya elliptica
Gordon Leppig
1998-6-26
853
Humboldt
McKinleyville, Rt. 101 @ Mad River Overlook.
24
Comment
UCR178955
Garrya elliptica
R. G. Swinney
1968-4-13
245
Humboldt
North Coast, Lanphere's Preserve, west of Arcata
15
Comment
HSC38934
Gaultheria shallon
Linda M. Barker
1976-5-13
1482
Humboldt
3 mi. W of Arcata.
Comment
HSC95595
Gaultheria shallon
Andrea Pickart
2002-6-30
140
Humboldt
Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge
30
Comment
SDSU2869
Gaultheria shallon
Harvey
1938-8-13
2254
Humboldt
West of Arcata.
Comment
SDSU2870
Gaultheria shallon
Harvey
1938-8-13
2254
Humboldt
West of Arcata.
Comment
UCD117449
Gaultheria shallon
Linda M. Barker
1976-5-13
1482
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC16987
Gilia millefoliata
Norman H. Moe
1962-5-17
Humboldt
Lanphere's Place
Comment
HSC16988
Gilia millefoliata
L. H. Myers
1963-5-13
14
Humboldt
W of Lanpheres Rd., Mad River slough area
Comment
HSC17012
Gilia millefoliata
J. W. Johnson
1962-5-13
1356
Humboldt
Arcata, Christenson Farm on the Samoa Peninsula, Ridge 3
Comment
HSC40933
Gilia millefoliata
Linda M. Barker
1976-6-1
1549
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata.
Comment
HSC95545
Gilia millefoliata
Andrea Pickart
2002-5-13
101
Humboldt
Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge
0
Comment
HSC95589
Gilia millefoliata
Andrea Pickart
2002-5-20
105
Humboldt
Manila Dunes, near Manila Community Services District treatment area
15
Comment
UCD117850
Gilia millefoliata
Linda M. Barker
1976-6-1
1549
Humboldt
3 miles west of Arcata.
Comment
HSC17914
Glaux maritima
D. E. Anderson
1962-5-10
2207
Humboldt
Lanphere's
Comment
HSC17915
Glaux maritima
Norman H. Moe
1962-5-17
Humboldt
Lanphere's Place
Comment
HSC90972
Glaux maritima
Leonel Arguello
1989-6-11
Humboldt
Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata
Comment
HSC21500
Glehnia littoralis subsp. leiocarpa
Lance Holmberg
1967-7-25
77
Humboldt
Lanphere Ranch, about 4 mi W of Arcata
Comment
HSC39440
Glehnia littoralis subsp. leiocarpa
Linda M. Barker
1976-6-22
1626
Humboldt
3 mi. W of Arcata
Comment
UCD127514
Glehnia littoralis subsp. leiocarpa
Linda M. Barker
1976-6-22
1626
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC10076
Glyceria X occidentalis
J. A. Waller
1965-5-2
32
Humboldt
Mud flats off of Samoa
Comment
HSC10000
Glyceria borealis
D. J. Wilder
1965-4-28
21
Humboldt
1/2 mi. W of Arcata on Samoa Rd.
Comment
CDA2166
Glyceria declinata
E. C. Whitney
1968-7-16
Humboldt
Arcata Bottom area.
0
Comment
HSC10051
Glyceria declinata
B. D. Rogers
1964-4-27
25
Humboldt
0.5 mi. W of Arcata on Samoa Rd.
Comment
HSC10056
Glyceria declinata
D. J. McVean
1965-5-18
79
Humboldt
McDaniel's Slough next to Samoa Blvd., Arcata.
Comment
HSC10079
Glyceria fluitans
J. P. Tracy
1933-7-20
19801
Humboldt
Arcata bottom
15
Comment
UC526907
Glyceria fluitans
Joseph P. Tracy
1933-7-20
12801
Humboldt
Arcata Bottom; North Coast Ranges
15
Comment
SBBG29159
Glyceria occidentalis
J. P. Tracy
1933-7-20
Humboldt
Arcata Bottom
15
Comment
HSC39053
Gnaphalium palustre
Linda M. Barker
1976-7-5
1639
Humboldt
3 mi. W of Arcata, coastal forest and dunes.
Comment
HSC40378
Gnaphalium palustre
Linda M. Barker
1976-8-2
1673
Humboldt
Lanphere-Christensen Dunes; 3 mi. W of Arcata
Comment
UCD132406
Gnaphalium palustre
Linda M. Barker
1976-7-5
1639
Humboldt
Lanphere-Christensen Dunes, 3 miles west of Arcata.
Comment
HSC28140
Goodyera oblongifolia
J. D. Ackerman
1973-8-23
117
Humboldt
2 mi. N of Manila
Comment
HSC29719
Goodyera oblongifolia
J. D. Ackerman
1973-8-18
120
Humboldt
2 mi. N of Manila
Comment
HSC29720
Goodyera oblongifolia
J. D. Ackerman
1973-12-17
121
Humboldt
2 mi. N of Manila
Comment
HSC29721
Goodyera oblongifolia
J. D. Ackerman
1973-12-17
122
Humboldt
2 mi. N of Manila
Comment
HSC39939
Goodyera oblongifolia
Linda M. Barker
1976-8-24
1679
Humboldt
3 mi. W of Arcata
Comment
IRVC21928
Goodyera oblongifolia
J. W. Johnson
Jul 1962
1075
Humboldt
Base of the Samoa Peninsula in the Lamphere-Christensen Dunes Preserve.
Comment
RSA249356
Goodyera oblongifolia
J. D. Ackerman
1973-8-18
120
Humboldt
2 miles north of Manila
Comment
UC1196436
Goodyera oblongifolia
Edith and Ethel Tracy
1900-7-31
910
Humboldt
opposite Eureka (Ocean Beach at Samoa); Samoa, Ocean Beach
Comment
UC1196437
Goodyera oblongifolia
J. P. Tracy
1900-7-4
879
Humboldt
opposite Eureka (Ocean Beach at Samoa); Samoa, Ocean Beach
Comment
UC14959
Goodyera oblongifolia
Ethel Tracy
1900-7-26
908
Humboldt
opposite Eureka (Ocean Beach at Samoa); Samoa, Ocean Beach
Comment
UCD138959
Goodyera oblongifolia
Linda M. Barker
1976-8-24
1679
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC39104
Grindelia hirsutula
J. D. Ackerman
1975-8-31
654
Humboldt
Lanphere Rd., near Mad River Slough, Arcata Bottoms
Comment
HSC89904
Grindelia hirsutula
Leonel Arguello
1989-7-14
Humboldt
Lanphere-Christensen Dunes Preserve 3 mi. W of Arcata.
Comment
HSC93477
Grindelia hirsutula
Gordon Leppig
1998-8-6
994
Humboldt
Arcata Marsh and Wildlife Sanctuary; Humboldt Bay side of Klopp Lake dike
2
Comment
UCD132571
Grindelia stricta var. stricta
Gordon Leppig
1998-8-6
994
Humboldt
Arcata, Arcata Marsh and Wildlife Sanctuary. On Humboldt bay side of Klopp Lake dike.
2
Comment
HSC39985
Hedera helix
Linda M. Barker
1976-9-3
1687
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata.
Comment
UCD128250
Hedera helix
Linda M. Barker
1976-9-3
1687
Humboldt
3 miles west of Arcata.
Comment
CAS-BOT-BC310180
Hesperevax sparsiflora var. brevifolia
Joseph P. Tracy
1905-4-30
2173
Humboldt
Northern Coast Region. At Humboldt Bay
Comment
HSC40964
Hieracium albiflorum
Linda M. Barker
1976-6-14
1591
Humboldt
3 mi. W of Arcata
Comment
UCD133133
Hieracium albiflorum
Linda M. Barker
1976-6-14
1591
Humboldt
3 miles west of Arcata.
Comment
CHSC10109
Hierochloe occidentalis
J. W. Johnson
1962-3-14
1120
Humboldt
Woods at the side of Miller Lane, Lanphere Farm, Samoa Penninsula.
Comment
UCD150387
Hippuris vulgaris
William Anderson
1965-6-26
s.n.
Humboldt
Mad River Slough.
Comment
CAS-BOT-BC280736
Holcus lanatus
Ira L. Wiggins
1930-6-25
4614
Humboldt
2 miles north of Samoa
Comment
GH360087
Holcus lanatus
I. L. Wiggins
1930-6-25
4614
Unknown
2 miles north of Samoa
Comment
HSC10122
Holcus lanatus
J. W. Johnson
1961-8-17
1035
Humboldt
Arcata, W.M. Lanphere Farm, Samoa Peninsula.
Comment
HSC10124
Holcus lanatus
T. F. Newman
1966-5-1
6647
Humboldt
Jackson Ranch, Arcata Bottoms.
Comment
HSC10133
Holcus lanatus
Francis Winter
1960-4-19
Humboldt
Samoa peninsula 5 miles W of Arcata.
Comment
HSC10142
Holcus lanatus
R. I. Bonn
1965-5-9
50
Humboldt
4 miles W of Arcata on Lanphere Rd.
Comment
HSC26537
Holcus lanatus
J. P. Smith
1971-9-9
5040
Humboldt
Mad River above the Fish Hatchery.
Comment
HSC39956
Holcus lanatus
Linda M. Barker
1976-6-22
1614
Humboldt
3 mi. W of Arcata
Comment
POM232313
Holcus lanatus
I. L. Wiggins
1930-6-25
4614
Humboldt
Sand dunes 2 miles north of Samoa.
Comment
UCD81679
Holcus lanatus
Chuck Hughes
2009-6-18
99
Humboldt
Near Arcata. NE corner of intersection of Old Samoa Road and Pacheco Road.
1
Comment
UCD84835
Holcus lanatus
Linda M. Barker
1976-6-22
1614
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC10163
Hordeum brachyantherum
D. J. McVean
1965-5-22
85
Humboldt
In field W of Jackson Rd., 1/4 mi N of Samoa Blvd.
Comment
HSC10165
Hordeum brachyantherum
J. A. Waller
1965-5-2
33
Humboldt
Open field
Comment
HSC89903
Hordeum brachyantherum
Leonel Arguello
1989-6-11
Humboldt
Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata
Comment
HSC98175
Hordeum marinum subsp. gussoneanum
L. M. Malloy
1965-5-14
42
Humboldt
N of Liscom's Slough 1/4 mi. on Foster Ave.
Comment
CHSC96732
Hordeum murinum subsp. glaucum
Gordon Leppig
1999-4-28
1127
Humboldt
Arcata Bottoms. North of Lamphere Rd. UTM zone 10, 4529N, 406E.
1
Comment
RSA624782
Hordeum murinum subsp. glaucum
Gordon Leppig, Sylvia Leppig
1999-4-28
1127
Humboldt
Arcata Bottoms; Mad River Rd. 1K North of lanphere Rd
2
Comment
HSC104047
Hordeum murinum subsp. murinum
Kyle Brown
Apr 2015
31
Humboldt
Along trail at Ma-le'l Dunes
3
Comment
CHSC68777
Hydrocotyle ranunculoides
Vernon Oswald
1997-6-5
8545
Humboldt
Robert Gearheart Marsh in the Arcata Marsh and Wildlife Sanctuary.
1
Comment
HSC39451
Hydrocotyle ranunculoides
Linda M. Barker
1976-11-6
1704
Humboldt
3 mi W of Arcata
Comment
UCD128229
Hydrocotyle ranunculoides
Linda M. Barker
1976-8-2
1704
Humboldt
Coastal forest and dunes 3 miles west of Arcata.
Comment
CHSC19478
Hypericum perforatum
Thomas W. Nelson
1970-10-18
251
Humboldt
Beside highway 101 ca. 100 yds. N. of Mad River bridge.
Comment
UCD133455
Hypochaeris radicata
Linda M. Barker
1976-9-3
1692
Humboldt
3 miles west of Arcata.
Comment
HSC40966
Ilex aquifolium
Linda M. Barker
1976-6-14
1594
Humboldt
3 mi. W of Arcata
Comment
UCD128252
Ilex aquifolium
Linda M. Barker
1976-6-14
1594
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC40972
Isolepis cernua
Linda M. Barker
1976-6-22
1618
Humboldt
3 mi. W of Arcata
Comment
HSC38446
Jaumea carnosa
J. P. Smith
1976-7-3
8935
Humboldt
Manila, Samoa Peninsula
Comment
HSC89905
Jaumea carnosa
Leonel Arguello
1989-7-22
Humboldt
Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata
Comment
CHSC10121
Juncus breweri
J. W. Johnson
1961-8-17
Humboldt
Arcata. In the vernal pond community of Hollow 10, W.M. Lanphere Farm. Samoa Peninsula.
Comment
HSC39051
Juncus bufonius
Linda M. Barker
1976-6-22
1619
Humboldt
3 mi. W of Arcata
Comment
HSC40945
Juncus bufonius
Linda M. Barker
1976-6-1
1551
Humboldt
3 mi. W of Arcata
Comment
UCD141361
Juncus bufonius
Linda M. Barker
1976-6-1
1551
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
UCD141362
Juncus bufonius
Linda M. Barker
1976-6-22
1619
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
UCD141425
Juncus covillei
Linda M. Barker
1976-6-22
1623
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC99801
Juncus effusus subsp. pacificus
C. B. Wolf
1927-8-28
1190
Humboldt
Eureka Bay, on the road to Arcata
Comment
HSC39048
Juncus falcatus
Linda M. Barker
1976-6-22
1623
Humboldt
3 mi. W of Arcata
Comment
UC1103053
Juncus falcatus var. falcatus
J. P. Tracy
1901-8-7
1273
Humboldt
opposite Eureka (Sand Hills of Ocean Beach); Samoa
Comment
HSC40877
Juncus hesperius
Linda M. Barker
1976-6-1
1568
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata.
Comment
UCD141545
Juncus hesperius
Linda M. Barker
1976-6-1
1568
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC39050
Juncus lescurii
Linda M. Barker
1976-6-22
1620
Humboldt
3 mi. W of Arcata
Comment
UCD141574
Juncus lescurii
Linda M. Barker
1976-6-22
1620
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
RSA126572
Juncus patens
H. S. Yates
1936-6-23
5858
Humboldt
2 miles southeast of mouth of Mad River.
305
Comment
UC1133717
Juncus patens
H. S. Yates
1936-6-23
5858
Humboldt
2 mi se mouth of Mad River; Eureka Quad.
30
Comment
UC204782
Lapsana communis
Joseph P. Tracy
1918-6-23
4957
Humboldt
outskirts of Arcata, around Humboldt bay Northern Coast Ranges, Humboldt Bay
60
Comment
UC166224
Lasthenia californica subsp. californica
J. P. Tracy
1901-5-18
1099
Humboldt
Ocean beach Samoa; Opp. Eureka
Comment
CDA18239
Lathyrus littoralis
G. D. Barbe, T. C. Fuller
1974-6-19
1877
Humboldt
North Coast Ranges; Mad River mouth, beach S of river, at end of Iversen Lane, Tyee City.
4
Comment Read comments Sep 18 2009
HSC14738
Lathyrus littoralis
Norman H. Moe
1962-5-3
Humboldt
Lanphere's Place
Comment
HSC14743
Lathyrus littoralis
J. W. Johnson
1962-4-29
1298
Humboldt
W.M. Lanphere Farm, Samoa Peninsula, Arcata.
Comment
HSC14744
Lathyrus littoralis
J. W. Johnson
1962-5-6
1326
Humboldt
W.M. Lanphere Farm, Samoa Peninsula.
Comment
HSC15522
Lathyrus littoralis
Gary J. Stebbins
1970-4-18
70
Humboldt
Along road to Samoa 1.1 mi. S of Mad River slough bridge
Comment
HSC38926
Lathyrus littoralis
Linda M. Barker
1976-5-13
1489
Humboldt
3 mi. W of Arcata.
Comment
HSC40263
Lathyrus littoralis
Linda M. Barker
1976-4-30
1409
Humboldt
3 mi. W of Arcata
Comment
HSC40951
Lathyrus littoralis
Linda M. Barker
1976-6-1
1560
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata.
Comment
HSC44618
Lathyrus littoralis
Laura Witherspoon
1977-5-25
Humboldt
Manila
Comment
UCD106374
Lathyrus littoralis
Linda M. Barker
1976-4-30
1409
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
UCD106376
Lathyrus littoralis
Linda M. Barker
1976-5-13
1489
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
UCD106378
Lathyrus littoralis
Linda M. Barker
1976-6-1
1560
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
UCD106379
Lathyrus littoralis
Roman Gankin
1965-8-6
552
Humboldt
1.3 miles south of Samoa, Samoa Peninsula.
Comment
CAS-BOT-BC325993
Layia carnosa
Greg de Nevers
2001-4-18
12253
Humboldt
Lanphere-Christenson dunes, near Arcata
9
Comment
CAS-BOT-BC326000
Layia carnosa
Peter H. Raven
1963-5-15
18370
Humboldt
Dunes above coast, Lanphere Ranch just W of Mad River Slough, near Arcata.
Comment
HSC104093
Layia carnosa
Kyle Brown
Apr 2015
33
Humboldt
Ma-le'l Dunes; ~.25 mi. NW of parking lot
3
Comment
HSC39959
Layia carnosa
Linda M. Barker
1976-4-13
1377
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata
Comment
HSC5911
Layia carnosa
J. W. Johnson
1962-4-18
1272
Humboldt
Arcata, between the Mad River mouth and the Hunt Farm, Samoa Peninsula.
Comment
HSC5912
Layia carnosa
L. H. Myers
1963-5-13
15
Humboldt
Dunes W of Lanpheres Rd., Mad River Slough area.
Comment
HSC95222
Layia carnosa
Heather Barnes
2002-3-29
22
Humboldt
Manila dunes, 0.2 km NW of Lupine St. and water tank.
3
Comment
RSA0008480
Layia carnosa
Jennifer Wheeler
2010-5-6
568
Humboldt
West of Arcata, Samoa Peninsula outer Humboldt Bay north of Manila
0
Comment
RSA176928
Layia carnosa
Peter H. Raven
1963-5-15
18370
Humboldt
Lanphere Ranch just west of Mad River Slough; near Arcata
Comment
UC1224620
Layia carnosa
Peter H. Raven
1963-5-15
18370
Humboldt
just w of Mad River Slough Lanphere Ranch; Arcata
Comment
UCD133892
Layia carnosa
Linda M. Barker
1976-4-13
1377
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
UCD133972
Leontodon saxatilis
Linda M. Barker
1976-5-13
1488
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
UCD133973
Leontodon saxatilis
Linda M. Barker
1976-6-1
1562
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
UCD149816
Leymus X vancouverensis
William Anderson
1965-6-26
s.n.
Humboldt
Arcata Bottoms.
Comment
UCD64628
Leymus mollis
Linda M. Barker
1976-6-1
1563
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
RSA183570
Leymus mollis subsp. mollis
R. I. Bonn
1965-3-12
6
Humboldt
four miles west of Arcata on Lanphere Rd.
Comment
HSC38445
Lilaeopsis occidentalis
J. P. Smith
1976-7-3
8937
Humboldt
Manila, Samoa Peninsula
Comment
HSC16906
Limonium californicum
C. B. Wolf
1927-8-28
1187
Humboldt
Eureka Bay, on the road to Arcata
Comment
HSC1801
Limonium californicum
William J. Ferlatte, B. D. Rogers
1966-8-15
3126
Humboldt
Near Arcata sewage pond, N Humboldt Bay.
Comment
HSC89992
Limonium californicum
Leonel Arguello
1989-9-9
Humboldt
Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata
Comment
HSC90804
Limonium californicum
Leonel Arguello
1989-9-9
Humboldt
Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata
Comment
HSC95099
Limonium californicum
Andrea Pickart
2002-6-27
121
Humboldt
Mad River Slough and Dunes, N of parking area at N end of access road.
0
Comment
RSA15573
Limonium californicum
Carl B. Wolf
1927-8-28
1187
Humboldt
Eureka Bay on road to Arcata
Comment
RSA183591
Limonium californicum
D. E. Anderson
1963-9-15
2813
Humboldt
Humbolt Bay
Comment
RSA244966
Limonium californicum
William J. Ferlatte, B. D. Rogers
1966-8-15
3126
Humboldt
Near Arcata sewage pond. North Humboldt Bay.
Comment
RSA246709
Limonium californicum
Robert F. Thorne, Percy C. Everett
1965-8-7
35211
Humboldt
Samoa Peninsula.
0
Comment
HSC39046
Linnaea borealis subsp. longiflora
Linda M. Barker
1976-6-14
1588
Humboldt
3 mi. W of Arcata
Comment
UCD73084
Linnaea borealis var. longiflora
Linda M. Barker
1976-6-14
1588
Humboldt
Coastal forest and dunes 3 miles west of Arcata.
Comment
HSC27569
Listera caurina
J. D. Ackerman, A. Montalvo
1973-6-29
71
Humboldt
2 mi. N of Manila
Comment
HSC30369
Listera caurina
J. D. Ackerman
1974-6-21
320
Humboldt
2 mi. N of Manila, between dunes and Mad River Slough
Comment
HSC40251
Lolium perenne
Linda M. Barker
1976-7-5
1646
Humboldt
3 mi. W of Arcata.
Comment
UCD66413
Lolium perenne
Linda M. Barker
1976-7-5
1646
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC90220
Lonicera involucrata
Louise Watson, Jan Meninga
Aug 1990
6
Humboldt
Mad River Slough and Dunes, 50 ft. N of parking lot, W of trail.
Comment
UCD137378
Lonicera involucrata
Linda M. Barker
1976-4-30
1400
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
CHSC19479
Lonicera involucrata var. ledebourii
Gary J. Stebbins
1970-4-18
66
Humboldt
Along road to Samoa 1.0 mile west of Mad River Slough bridge.
6
Comment
HSC40297
Lonicera involucrata var. ledebourii
Linda M. Barker
1976-4-30
1400
Humboldt
3 mi. W of Arcata
Comment
HSC62897
Lonicera involucrata var. ledebourii
J. M. DiTomaso
1979-4-1
836
Humboldt
3 mi. S of Arcata, on Samoa Rd.
Comment
HSC95112
Lonicera involucrata var. ledebourii
Andrea Pickart
2002-6-27
119
Humboldt
Mad River Slough and Dunes, along access Rd. near parking area at N end.
15
Comment
SDSU2917
Lonicera involucrata var. ledebourii
Harvey
1938-8-13
2278
Humboldt
North of Arcata.
Comment
CAS-BOT-BC200911
Lotus
Greg de Nevers
2001-4-18
12256
Humboldt
Lanphere-Christenson dunes, near Arcata
9
Comment
HSC98254
Lotus corniculatus
Norman H. Moe
1962-5-19
Humboldt
Lanphere's Place
Comment
CAS-BOT-BC196400
Lupinus arboreus
Dziekanowski; Dunn; Bennett
1976-8-6
2501
Humboldt
On the beach opposite McKinleyville
3
Comment
CHSC10105
Lupinus arboreus
J. W. Johnson
1961-9-3
1078
Humboldt
Arcata. In the dune fields, Christenson Farm, Samoa Peninsula.
Comment
CHSC10106
Lupinus arboreus
J. W. Johnson
1961-9-3
1078
Humboldt
Arcata. In the dune fields, Christenson Farm, Samoa Peninsula.
Comment
HSC14772
Lupinus arboreus
R. I. Bonn
1965-5-9
43
Humboldt
4 mi. W of Arcata on Lanphere Rd.
Comment
HSC14774
Lupinus arboreus
J. W. Johnson
1961-11-20
Humboldt
Arcata, Christenson Farm., Samoa Peninsula
Comment
HSC14775
Lupinus arboreus
J. W. Johnson
1961-9-3
1078
Humboldt
Arcata, Christenson Farm, Samoa Peninsula.
Comment
HSC40963
Lupinus arboreus
Linda M. Barker
1976-5-13
1472
Humboldt
Lanphere-Christensen Dunes; 3 mi. W of Arcata
Comment
HSC40973
Lupinus arboreus
Linda M. Barker
1976-5-13
1494
Humboldt
Lanphere-Christensen Dunes; 3 mi. W of Arcata
Comment
HSC40974
Lupinus arboreus
Linda M. Barker
1976-5-13
1474
Humboldt
Lanphere-Christensen Dunes; 3 mi. W of Arcata
Comment
HSC90219
Lupinus arboreus
L. Watson, J. Meninga
Aug 1990
7
Humboldt
Near Manilla. Mad River Slough and Dunes. 30 yds. N of parking lot, W side of trail.
Comment
UCD106589
Lupinus arboreus
Linda M. Barker
1976-5-13
1472
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
UCD106590
Lupinus arboreus
Linda M. Barker
1976-5-13
1474
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
UCD106592
Lupinus arboreus
Linda M. Barker
1976-5-13
1494
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
UCSB26618
Lupinus arboreus
Havlik, Neil
1968-8-21
Humboldt
Along U.S. Highway 101; west of Arcata Airport
6
Comment
RSA407031
Lupinus arboreus var. arboreus
Bonnie C. Templeton
1964-6-13
10091
Humboldt
Samoa, west of Arcata.
Comment
HSC40960
Lupinus bicolor
Linda M. Barker
1976-6-1
1564
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata.
Comment
HSC95546
Lupinus bicolor
Andrea Pickart
2002-5-20
106
Humboldt
Manila Dunes, near Manila Community Services District treatment area
15
Comment
UCD107126
Lupinus bicolor
Linda M. Barker
1976-6-1
1564
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC40961
Lupinus littoralis
Linda M. Barker
1976-5-13
1495
Humboldt
Lanphere-Christensen Dunes; 3 mi. W of Arcata
Comment
HSC40962
Lupinus littoralis
Linda M. Barker
1976-7-5
1642
Humboldt
3 mi. W of Arcata
Comment
HSC95097
Lupinus littoralis
Andrea Pickart
2002-7-3
151
Humboldt
Big Dune, Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge
24
Comment
UCD107969
Lupinus littoralis
Linda M. Barker
1976-5-13
1495
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
UCD107971
Lupinus littoralis
Linda M. Barker
1976-7-5
1642
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC14889
Lupinus variicolor
J. W. Johnson
1962-4-19
1279
Humboldt
Manila, Samoa Peninsula
Comment
HSC14891
Lupinus variicolor
R. I. Bonn
1965-5-9
42
Humboldt
4 mi. W of Arcata on Lanphere Rd.
Comment
HSC14059
Luzula comosa
R. I. Bonn
1965-5-7
31
Humboldt
4 mi. W of Arcata on Lanphere Rd.
Comment
HSC27555
Luzula comosa
J. D. Ackerman
1973-3-27
36
Humboldt
1.5 mi. N of Manila
Comment
HSC40405
Luzula comosa
Linda M. Barker
1976-3-22
1344
Humboldt
3 mi. W of Arcata
Comment
UCD142058
Luzula comosa
Linda M. Barker
1976-6-14
1596
Humboldt
Coastal forest and dunes 3 miles west of Arcata.
Comment
UCD138077
Lysichiton americanus
Linda M. Barker
1976-3-11
1321
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC39946
Madia sativa
Linda M. Barker
1976-7-5
1636
Humboldt
3 mi. W of Arcata.
Comment
HSC40379
Madia sativa
Linda M. Barker
1976-6-14
1592
Humboldt
3 mi. W of Arcata
Comment
HSC95524
Madia sativa
Andrea Pickart
2002-7-19
178
Humboldt
Arcata Marsh at end of I St.
10
Comment
UCD134335
Madia sativa
Linda M. Barker
1976-7-5
1636
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
CHSC10104
Maianthemum dilatatum
J. W. Johnson
1962-4-21
1287
Humboldt
Arcata. Along Lanphere Lane, Samoa Peninsula.
Comment
HSC38936
Maianthemum dilatatum
Linda M. Barker
1976-5-13
1484
Humboldt
3 mi. W of Arcata
Comment
UCD139044
Maianthemum dilatatum
Linda M. Barker
1976-5-13
1484
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC18693
Malus fusca
J. W. Johnson
1962-4-18
1253
Humboldt
Above S pasture, W.M. Lanphere Farm, Samoa Peninsula.
Comment
CHSC10136
Marah oregana
J. W. Johnson
1962-3-31
1412
Humboldt
Along the Lanphere Lane, Samoa Peninsula, Arcata.
Comment
HSC7033
Marah oregana
R. I. Bonn
1965-5-9
48
Humboldt
4 mi. W of Arcata on Lanphere Rd.
Comment
JEPS26724
Mentzelia laevicaulis var. laevicaulis
W. L. Jepson
1936-8-17
17939
Humboldt
near Arcata; Mad River
Comment
JEPS10598
Mimulus pilosus
W. L. Jepson
1936-8-17
17937
Humboldt
near Arcata; Mad River
Comment
HSC16101
Morella californica
J. W. Johnson
1961-8-17
1045
Humboldt
Edge of pond near barn, Lanphere Farm, Samoa
Comment
HSC40948
Morella californica
Linda M. Barker
1976-6-1
1542
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata.
Comment
HSC62915
Morella californica
J. M. DiTomaso
1979-4-1
835
Humboldt
3 mi. S of Arcata on Samoa Rd.
Comment
HSC90235
Morella californica
L. Watson, J. Meninga
Aug 1990
8
Humboldt
Mad River Slough and Dunes, N of parking lot, W of trail, near Manilla
Comment
UCD110276
Morella californica
Linda M. Barker
1976-6-1
1542
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC39447
Navarretia squarrosa
Linda M. Barker
1976-8-2
1668
Humboldt
Lanphere- Christensen Dunes, 3 mi. W of Arcata
Comment
HSC20656
Nuttallanthus texanus
L. H. Myers
1963-4-5
19
Humboldt
Dunes W of Lanpheres Rd., Mad River slough area
Comment
HSC40934
Nuttallanthus texanus
Linda M. Barker
1976-4-30
1408
Humboldt
3 mi. W of Arcata
Comment
UC1222454
Nuttallanthus texanus
J. P. Tracy
1919-4-27
5135
Humboldt
opposite Eureka (Ocean Beach at Samoa); Samoa, Ocean Beach
Comment
UCD124038
Nuttallanthus texanus
Linda M. Barker
1976-6-1
1550
Humboldt
Lanphere-Christensen Dunes, 3 miles west of Arcata.
Comment
HSC18701
Oemleria cerasiformis
J. L. Baker
1965-3-13
13
Humboldt
Humboldt Meridian, 4 mi. N of Arcata on N Bank Rd.
Comment
HSC39449
Oenanthe sarmentosa
Linda M. Barker
1976-8-24
1686
Humboldt
3 mi. W of Arcata
Comment
HSC39450
Oenanthe sarmentosa
Linda M. Barker
1976-7-5
1632
Humboldt
3 mi. W of Arcata.
Comment
UCD127738
Oenanthe sarmentosa
Linda M. Barker
1976-8-24
1686
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
UCD81683
Oenanthe sarmentosa
Chuck Hughes
2009-6-18
102
Humboldt
Near Arcata. NE corner of intersection of Old Samoa Road and Pacheco Road.
1
Comment
UCD81853
Oenanthe sarmentosa
Chuck Hughes
2009-6-18
102
Humboldt
Near Arcata. NE corner of intersection of Old Samoa Road and Pacheco Road.
1
Comment
CHSC70154
Oenothera glazioviana
David K. Imper
1993-6-15
Humboldt
Base of sand dunes, south end of Manila, west of Eureka.
6
Comment
HSC104292
Parentucellia viscosa
Samantha E. Andres
2016-5-19
7
Humboldt
Mad River County Park, coastal trail to the Mad River Spit
4
Comment
HSC39944
Parentucellia viscosa
Linda M. Barker
1976-7-5
1640
Humboldt
3 mi. W of Arcata
Comment
UCD123252
Parentucellia viscosa
Linda M. Barker
1976-7-5
1640
Humboldt
Lanphere-Christensen Dunes, 3 miles west of Arcata.
Comment
HSC39986
Pentagramma triangularis
Linda M. Barker
1976-3-11
1329
Humboldt
3 mi. W of Arcata
Comment
UCD137788
Pentagramma triangularis subsp. triangularis
Linda M. Barker
1976-3-11
1329
Humboldt
Coastal forest and dunes 3 miles west of Arcata.
Comment
RSA183572
Petasites palmatus
R. I. Bonn
1965-3-5
4
Humboldt
4 miles west of Arcata on Samoa Road.
Comment
UC1132414
Phalaris aquatica
H. S. Yates
1936-6-23
5857
Humboldt
2 mi se mouth of Mad River; Eureka Quad.
Comment
UC577627
Phalaris aquatica
H. S. Yates
1936-6-23
5857
Humboldt
2 mi se mouth of Mad River; Eureka Quad.
Comment
UC552756
Phalaris arundinacea
Joseph P. Tracy
1934-7-27
13492
Humboldt
Arcata Bottom; North Coast Ranges, Arcata Bottom
12
Comment
CHSC67760
Picea sitchensis
Vernon H. Oswald
1997-1-29
8304
Humboldt
Mad River County Park NW of Arcata, S of the mouth of Mad River.
Comment
HSC1354
Picea sitchensis
J. W. Johnson
1962-4-29
1295
Humboldt
W.M. Lanphere Farm, Samoa Peninsula, Arcata.
Comment
HSC40943
Picea sitchensis
Linda M. Barker
1976-4-13
1376
Humboldt
3 mi. W of Arcata
Comment
SD51259
Picea sitchensis
Darley F. Howe
1961-8-1
Humboldt
3 miles north of Arcata on Highway #101
Comment
SDSU1550
Picea sitchensis
D. F. Howe
1961-8-1
3110
Humboldt
Three miles north of Arcata on #101.
Comment
UCD134309
Picea sitchensis
Linda M. Barker
1976-4-13
1376
Humboldt
Lanphere-Christensen Dunes, coastal forest and dunes 3 miles west of Arcata.
Comment
CAS-BOT-BC73290
Pinus contorta
Ira L. Wiggins
1930-6-25
4620
Humboldt
Sand dunes 2 miles north of Samoa.
Comment
CAS-BOT-BC78377
Pinus contorta
Ira L. Wiggins
1930-6-25
4620
Humboldt
2 miles north of Samoa
Comment
GH357739
Pinus contorta
I. L. Wiggins
1930-6-25
4620
Unknown
Sand dunes 2 miles north of Samoa, Humboldt County
Comment
HSC1478
Pinus contorta
L. H. Myers
1963-5-13
21
Humboldt
Dunes W of Lanpheres Rd., Mad River Slough area.
Comment
HSC1483
Pinus contorta
R. I. Bonn
1965-5-9
46
Humboldt
4 mi. W of Arcata on Lanphere Rd.
Comment
HSC1487
Pinus contorta
J. W. Johnson
1962-4-29
1294
Humboldt
Ridge 8, Lanphere Farm, Samoa Peninsula
Comment
MACF017417
Pinus contorta
Trudy R. Ericson
1974-8-5
198
Humboldt
Hwy 255 between Eureka and Arcata, near the shore
Comment
HSC40304
Pinus contorta var. contorta
Linda M. Barker
1976-7-5
1641
Humboldt
3 mi. W of Arcata.
Comment
HSC95835
Pinus contorta var. contorta
Will Ferrand
2002-4-27
36
Humboldt
300 ft W of intersection of Samoa Blvd. and Lupine Dr.
9
Comment
UCD134418
Pinus contorta var. contorta
Linda M. Barker
1976-7-5
1641
Humboldt
Lanphere-Christensen Dunes, 3 miles west of Arcata.
Comment
RSA273410
Piperia elegans
J. D. Ackerman
1974-8-13
405
Humboldt
Ca. 2 miles north of Manila, between sand dunes and Mad River Slough
Comment
UC1488745
Piperia elegans
J. D. Ackerman
1974-8-13
405
Humboldt
ca 2 mi n Manila (between sand dunes and Mad River Slough)
Comment
UC1488747
Piperia elegans
J. D. Ackerman
1974-8-13
405
Humboldt
ca 2 mi n Manila (between sand dunes and Mad River Slough)
Comment
UC14936
Piperia elegans
J. P. Tracy
1901-8-7
1253
Humboldt
opposite Eureka; Samoa
Comment
UCD139013
Piperia elegans subsp. elegans
Linda M. Barker
1976-7-5
1635
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
RSA249357
Piperia transversa
J. D. Ackerman
1973-8-23
116
Humboldt
2 miles north of Manila
Comment
RSA259584
Piperia transversa
J. D. Ackerman
1974-8-14
408
Humboldt
2 miles north of Manila, between sand dunes and Mad River Slough
Comment
RSA273298
Piperia transversa
J. D. Ackerman
1974-8-13
404
Humboldt
Ca. 2 miles north of Manila, between sand dunes and Mad River Slough
Comment
RSA273348
Piperia transversa
J. D. Ackerman
1974-8-13
404
Humboldt
Ca. 2 miles north of Manila, between sand dunes and Mad River Slough
Comment
UC1196426
Piperia transversa
Edith and Ethel Tracy
1900-7-31
909
Humboldt
opposite Eureka; Samoa, Ocean Beach
Comment
UC14948
Piperia transversa
J. P. Tracy
1900-7-4
880
Humboldt
opposite Eureka; Samoa, Ocean Beach
Comment
UCD139019
Piperia transversa
Linda M. Barker
1976-6-14
1595
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC40374
Pittosporum tenuifolium
Linda M. Barker
1976-10-7
1703
Humboldt
3 mi. W of Arcata.
Comment
HSC16826
Plantago erecta
L. H. Myers
1963-5-14
13
Humboldt
W of Lanpheres Rd., Mad River slough area
Comment
HSC40868
Plantago erecta
Linda M. Barker
1976-4-30
1397
Humboldt
3 mi. W of Arcata
Comment
JEPS14285
Plantago erecta
J. P. Tracy
1919-4-27
5133
Humboldt
opposite Eureka (Ocean Beach); Samoa
Comment
UC1196143
Plantago erecta
Joseph P. Tracy
1919-4-27
5133
Humboldt
opposite Eureka (Ocean Beach at Samoa); Humboldt Bay, Samoa, Ocean Beach
Comment
UCD124424
Plantago erecta
Linda M. Barker
1976-4-30
1397
Humboldt
Lanphere-Christensen Dunes, 3 miles west of Arcata.
Comment
HSC16844
Plantago lanceolata
R. I. Bonn
1965-5-9
38
Humboldt
4 mi. W of Arcata on Lanphere Rd.
Comment
HSC40307
Plantago lanceolata
Linda M. Barker
1976-4-30
1401
Humboldt
3 mi. W of Arcata
Comment
UCD124573
Plantago lanceolata
Linda M. Barker
1976-4-30
1401
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC89977
Plantago maritima
Leonel Arguello
1989-7-14
Humboldt
Lanphere-Christensen Dunes Preserve 3 mi. W of Arcata.
Comment
HSC16832
Plantago subnuda
Norman H. Moe
1962-5-17
Humboldt
Lanphere's Place, next to Mad River Slough
Comment
SDSU1028
Plantago subnuda
Harvey
1938-8-13
2274
Humboldt
North of Arcata.
Comment
HSC90238
Platystemon californicus
Louise Watson, Jan Meninga
Mar 1991
14
Humboldt
Near Manilla, Mad River Slough and Dunes, NW edge of parking lot
Comment
CHSC10124
Plectritis congesta
J. W. Johnson
1962-4-19
1273
Humboldt
Miller Farm, Samoa Peninsula. Arcata.
Comment
HSC90237
Plectritis congesta
L. Watson, J. Meninga
Mar 1991
16
Humboldt
Near Manila, Mad River slough and dunes, SW edge of parking lot.
Comment
HSC40866
Poa annua
Linda M. Barker
1976-4-30
1399
Humboldt
3 mi. W of Arcata
Comment
UCD90242
Poa annua
Linda M. Barker
1976-4-30
1399
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
UC1132594
Poa bulbosa
H. L. Person
1932-5-11
Humboldt
near Arcata; Eureka Quadrangle
Comment
BLMAR436
Poa confinis
Jennifer Anthony-Wheeler
2008-6-18
436
Humboldt
Samoa/Malel Dunes
9
Comment
CAS-BOT-BC255117
Poa confinis
Peter H. Raven
1963-5-15
18372
Humboldt
Dunes above coast, Lanphere Ranch just W of Mad River Slough, near Arcata
Comment
HSC10676
Poa confinis
J. W. Johnson
1962-5-10
1340
Humboldt
Arcata, Christenson Farm, Samoa Peninsula.
Comment
HSC10677
Poa confinis
J. W. Johnson
1962-4-14
1250
Humboldt
Arcata, Christenson Farm, Samoa Peninsula.
Comment
HSC10678
Poa confinis
J. W. Johnson
1962-4-10
1239
Humboldt
Arcata, Christenson Farm, Samoa Peninsula.
Comment
HSC10682
Poa confinis
R. H. Berg
1963-5-8
66
Humboldt
On sand dunes near Lanphere's, Arcata.
Comment
HSC10685
Poa confinis
Norman H. Moe
1962-5-17
Humboldt
Lanphere's Place.
Comment
HSC10689
Poa confinis
L. H. Myers
1963-5-3
49
Humboldt
Sand dunes W of Lanphere's Rd., Mad River Slough area.
Comment
HSC38919
Poa confinis
Linda M. Barker
1976-4-30
1412
Humboldt
3 mi. W of Arcata
Comment
RSA176927
Poa confinis
P. H. Raven
1963-5-15
18372
Humboldt
Lanphere Ranch just west of Mad River Slough; near Arcata
Comment
RSA183609
Poa confinis
R. I. Bonn
1965-5-7
27
Humboldt
Four miles west of Arcata on Lamphere Rd.
Comment
UCD90512
Poa confinis
Linda M. Barker
1976-4-30
1412
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
CHSC10126
Poa douglasii
J. W. Johnson
1961-8-17
1028
Humboldt
On a dune, W.M. Lanphere Farm, Samoa Peninsula.
Comment
HSC10694
Poa douglasii
J. W. Johnson
1961-9-4
1101
Humboldt
Christenson Farm, Samoa Peninsula, Arcata.
Comment
HSC10695
Poa douglasii
J. W. Johnson
1962-5-6
1310
Humboldt
W.M. Lanphere Farm, Samoa Peninsula.
Comment
HSC10696
Poa douglasii
J. W. Johnson
1961-8-17
1028
Humboldt
Arcata, W.M. Lanphere Farm, Samoa Peninsula.
Comment
HSC10698
Poa douglasii
J. W. Johnson
1962-6-4
1426
Humboldt
Arcata, W.M. Lanphere Farm, Samoa Peninsula.
Comment
HSC10703
Poa douglasii
L. H. Myers
1963-5-13
20
Humboldt
Dunes W of Lanpheres Rd., Mad River Slough area.
Comment
HSC10704
Poa douglasii
R. H. Berg
1963-5-8
67
Humboldt
On sand dunes near Lanphere's, Arcata.
Comment
UCD91030
Poa douglasii subsp. douglasii
Linda M. Barker
1976-5-13
1491
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
BLMAR437
Poa macrantha
Jennifer Anthony-Wheeler
2008-6-18
437
Humboldt
Samoa/Malel Dunes
9
Comment
HSC10692
Poa macrantha
J. W. Johnson
1961-9-10
1111
Humboldt
Arcata, Christenson Farm, Samoa Peninsula.
Comment
HSC10693
Poa macrantha
J. W. Johnson
1961-9-3
1080
Humboldt
Arcata, Christenson Farm, Samoa Peninsula.
Comment
HSC10699
Poa macrantha
R. C. Drewien
1963-5-8
11
Humboldt
S of the Mad River, Lanpheres' property.
Comment
HSC38922
Poa macrantha
Linda M. Barker
1976-6-22
1625 .5
Humboldt
3 mi. W of Arcata
Comment
HSC38923
Poa macrantha
Linda M. Barker
1976-5-13
1491
Humboldt
3 mi. W of Arcata.
Comment
UCD91539
Poa macrantha
Linda M. Barker
1976-6-22
1625
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC10816
Poa pratensis
J. W. Johnson
1961-6-12
1425
Humboldt
Arcata, Christenson Farm, Samoa Peninsula.
Comment
HSC40338
Poa pratensis
Linda M. Barker
1976-6-1
1567
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata.
Comment
UCD91813
Poa pratensis
Linda M. Barker
1976-6-1
1567
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
SEINET200570
Poa trivialis
J. P. Tracy
1909-6-13
2998
Humboldt
On Mad River, 5 miles from its mouth, on damp banks in partial shade.
30
Comment
CAS-BOT-BC109183
Polygonum paronychia
Greg de Nevers
2001-4-18
12252
Humboldt
Lanphere-Christenson dunes, near Arcata.
9
Comment
CDA22830
Polygonum paronychia
J. Riddell
2002-4-19
35
Humboldt
Mad River Beach dunes.
Comment
CHSC10117
Polygonum paronychia
J. W. Johnson
1962-2-15
1152
Humboldt
Arcata. In Hollow 3 South near foot of Dune 3 North, Christenson Farm Samoa Peninsula..
Comment
HSC17512
Polygonum paronychia
J. W. Johnson
1961-8-17
1041
Humboldt
Dune fields of W.M. Lanphere Farm, Samoa Peninsula
Comment
HSC17513
Polygonum paronychia
J. W. Johnson
1962-2-15
1152
Humboldt
Samoa Peninsula: Christenson Farm, near Dune 3 N in the Hollow 3 S
Comment
HSC38939
Polygonum paronychia
Linda M. Barker
1976-5-13
1487
Humboldt
3 mi. W of Arcata.
Comment
HSC90239
Polygonum paronychia
L. Watson, J. Meninga
Mar 1991
18
Humboldt
Near Manila, Mad River Slough and Dunes, SW edge of parking lot
Comment
UCD100508
Polygonum paronychia
Linda M. Barker
1976-5-13
1487
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC28487
Polypodium californicum
J. D. Ackerman
1973-3-27
53
Humboldt
1.5 mi. N of Manila
Comment
UC57306
Polypodium calirhiza
J. P. Tracy
1901-1-27
985
Humboldt
sand hill of Ocean Beach at Samoa (opposite Eureka)
Comment
HSC1122
Polypodium glycyrrhiza
L. H. Myers
1963-2-15
50
Humboldt
Sand dunes W of Lanpheres Rd. Mad River Slough area
Comment
HSC39942
Polypodium glycyrrhiza
Linda M. Barker
1976-3-11
1328
Humboldt
3 mi. W of Arcata
Comment
UC57305
Polypodium glycyrrhiza
J. P. Tracy
1901-1-27
986
Humboldt
sand hills of Ocean Beach at Samoa (opposite Eureka)
Comment
UCD136880
Polypodium glycyrrhiza
Linda M. Barker
1976-2-22
1313
Humboldt
3 miles west of Arcata.
Comment
HSC39949
Polypodium scouleri
Linda M. Barker
1976-3-11
1327
Humboldt
3 mi. W of Arcata
Comment
HSC95649
Polypodium scouleri
Andrea Pickart
2002-4-5
40
Humboldt
Lanphere Dunes
0
Comment
UCD136910
Polypodium scouleri
Linda M. Barker
1976-3-11
1327
Humboldt
Coastal forest and dunes 3 miles west of Arcata.
Comment
HSC26536
Polypogon australis
J. P. Smith
1971-10-9
5035
Humboldt
Banks and flood plain of the Mad River above the fish hatchery.
Comment
HSC38920
Polypogon monspeliensis
Linda M. Barker
1976-6-1
1552
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata.
Comment
HSC38921
Polypogon monspeliensis
Linda M. Barker
1976-6-22
1625
Humboldt
3 mi. W of Arcata
Comment
HSC77917
Polypogon monspeliensis
L. P. Janeway, Paul Wilson
1984-5-25
823
Humboldt
N Spit of Humboldt Bay, BLM lands near the Coast Guard Station
5
Comment
HSC89907
Polypogon monspeliensis
Leonel Arguello
1989-5-27
Humboldt
Lanphere-Christensen Dunes Preserve 3 miles W of Arcata. End of Saltmarsh trail.
Comment
UCD91219
Polypogon monspeliensis
Linda M. Barker
1976-6-1
1552
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
UCD91220
Polypogon monspeliensis
Linda M. Barker
1976-6-22
1625
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC1154
Polystichum munitum
R. I. Bonn
1965-5-9
40
Humboldt
4 mi. W of Arcata on Lanphere Rd.
Comment
HSC40256
Polystichum munitum
Linda M. Barker
1976-4-30
1414
Humboldt
3 mi. W of Arcata
Comment
UCD136543
Polystichum munitum
Linda M. Barker
1976-4-30
1414
Humboldt
Lanphere-Christensen Dunes, 3 miles west of Arcata.
Comment
JEPS64523
Populus trichocarpa
W. L. Jepson
1936-8-17
17935
Humboldt
Mad River near Arcata; Mad River
Comment
UC1196662
Populus trichocarpa
Joseph P. Tracy
1932-5-11
9970
Humboldt
2 mi n Samoa; North Coast Ranges
6
Comment
HSC38918
Potentilla anserina subsp. pacifica
Linda M. Barker
1976-6-1
1556
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata.
Comment
HSC44619
Potentilla anserina subsp. pacifica
Laura Witherspoon
1977-5-25
Humboldt
Manila
Comment
HSC95736
Potentilla anserina subsp. pacifica
Steven Lee
2004-4-10
11
Humboldt
Drive from intersection of V St. and Samoa Blvd. in Arcata 1/8 mi. towards parking area to S
200
Comment
UCD113692
Potentilla anserina subsp. pacifica
Linda M. Barker
1976-6-1
1556
Humboldt
3 miles west of Arcata.
Comment
UCD135199
Pseudognaphalium beneolens
Linda M. Barker
1976-8-24
1685
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC40261
Pseudognaphalium ramosissimum
Linda M. Barker
1976-8-2
1678
Humboldt
Lanphere- Christensen Dunes, 3 mi. W of Arcata
Comment
UCD134980
Pseudognaphalium ramosissimum
Linda M. Barker
1976-8-2
1678
Humboldt
3 miles west of Arcata.
Comment
HSC40252
Pseudognaphalium stramineum
Linda M. Barker
1976-8-24
1685
Humboldt
3 mi. W of Arcata
Comment
HSC95588
Pseudognaphalium stramineum
Andrea Pickart
2002-7-3
162
Humboldt
Lanphere Dunes: Big Dune, Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge
0
Comment
HSC40003
Pseudotsuga menziesii var. menziesii
Linda M. Barker
1976-9-3
1689
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata.
Comment
UCD135113
Pseudotsuga menziesii var. menziesii
Linda M. Barker
1976-9-3
1689
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC1163
Pteridium aquilinum var. pubescens
R. I. Bonn
1965-5-9
41
Humboldt
4 mi. W of Arcata on Lanphere Rd.
Comment
HSC38933
Pteridium aquilinum var. pubescens
Linda M. Barker
1976-5-13
1480
Humboldt
3 mi. W of Arcata.
Comment
UCD136153
Pteridium aquilinum var. pubescens
Linda M. Barker
1976-5-13
1480
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC10868
Puccinellia nutkaensis
J. A. Waller
1965-5-16
38
Humboldt
Humboldt Bay
Comment
HSC10869
Puccinellia nutkaensis
D. J. McVean
1965-5-22
84
Humboldt
Along slough just W of Jackson Rd., 1/4 mi. N of Samoa Rd.
Comment
HSC90883
Puccinellia nutkaensis
Leonel Arguello
1989-6-24
Humboldt
Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata; 30 yards from Salt Marsh Trail.
Comment
HSC39443
Ranunculus muricatus
Linda M. Barker
1976-4-30
1404
Humboldt
3 mi. W of Arcata
Comment
UCD96220
Ranunculus muricatus
Linda M. Barker
1976-4-30
1404
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
UC1196265
Ranunculus repens
Joseph P. Tracy
1933-7-20
12803
Humboldt
Arcata Bottom North Coast Ranges
15
Comment
UCD97080
Ranunculus repens
Linda M. Barker
1976-6-1
1555
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC18177
Ranunculus repens var. repens
L. H. Myers
1963-4-19
44
Humboldt
Dunes W of Lanpheres Rd., Mad River slough area
Comment
HSC39445
Ranunculus repens var. repens
Linda M. Barker
1976-6-1
1555
Humboldt
3 mi. W of Arcata
Comment
UCD16181
Ranunculus sardous
J. DiTomaso
2000-8-12
s.n.
Humboldt
Arcata bottoms along Seidel Rd.
Comment
HSC39977
Raphanus raphanistrum
Linda M. Barker
1976-7-5
1647
Humboldt
3 mi. W of Arcata
Comment
UCD115153
Raphanus raphanistrum
Linda M. Barker
1976-7-5
1647
Humboldt
Lanphere-Christensen Dunes, 3 miles west of Arcata.
Comment
CAS-BOT-BC108910
Ribes divaricatum var. pubiflorum
Doris K. Kildale
1927-6-28
3607
Humboldt
Lower Mad River near Covered Bridge on Redwood Highway.
Comment
HSC20311
Ribes menziesii
J. L. Baker
1965-4-24
33
Humboldt
4 mi. N of Arcata on N Bank Rd.
Comment
HSC34814
Ribes menziesii
Pamela Bruce
1975-4-8
1
Humboldt
0.5 mi. N of School Rd. on Washington Ave.
Comment
HSC28504
Ribes sanguineum
J. D. Ackerman
1973-3-27
40
Humboldt
1.5 mi. N of Manila
Comment
HSC34626
Ribes sanguineum
Pamela Bruce
1975-4-8
1
Humboldt
0.5 mi. N of School Rd. on Washington Ave.
Comment
CAS-BOT-BC144677
Ribes sanguineum var. glutinosum
Ira L. Wiggins
1930-6-25
4617
Humboldt
Sand dunes 2 miles north of Samoa
Comment
CAS-BOT-BC144683
Ribes sanguineum var. glutinosum
Ira L. Wiggins
1930-6-25
4617
Humboldt
Sand dunes 2 miles north of Samoa
Comment
HSC103217
Ribes sanguineum var. glutinosum
Jade Paget-Seekins
2010-3-14
3
Humboldt
McKinleyville, west end of Hiller Park.
10
Comment
HSC13252
Ribes sanguineum var. glutinosum
D. E. Anderson
1962-1-12
1907
Humboldt
Along road to Lanphere's
Comment
HSC39950
Ribes sanguineum var. glutinosum
Linda M. Barker
1976-3-22
1334
Humboldt
3 mi. W of Arcata
Comment
HSC40407
Ribes sanguineum var. glutinosum
Linda M. Barker
1976-1-24
1311
Humboldt
3 mi. W of Arcata
Comment
HSC90232
Ribes sanguineum var. glutinosum
L. Watson, J. Meninga
Mar 1991
9
Humboldt
Near Manilla, Mad River Slough and Dunes, 300yds W of parking lot, W of trail
Comment
UC1215537
Ribes sanguineum var. glutinosum
D. E. Anderson
1962-1-12
1907
Humboldt
along road to Lanphere Ranch
Comment
UCD102493
Ribes sanguineum var. glutinosum
Linda M. Barker
1976-3-11
1323
Humboldt
Coastal forest and dunes 3 miles west of Arcata.
Comment
GH401069
Romanzoffia tracyi
L. Constance, A. A. Beetle & J. P. Tracy
1940-5-18
2619
Unknown
Ocean bluffs north of Trinidad
30
Comment
CAS-BOT-BC146826
Rosa nutkana
Doris K. Kildale
1927-6-28
3606
Humboldt
Mad River near covered bridge on Redwood Highway
Comment
HSC44122
Rosa nutkana
Linda M. Barker, Thomas F. Lyon
1977-5-8
1715
Humboldt
3 mi. W of Arcata in S pasture
Comment
SBBG27214
Rosa nutkana
D. K. Kildale
1927-6-28
Humboldt
Mad River at covered bridge
Comment
HSC19672
Rubus parviflorus
R. I. Bonn
1965-5-9
47
Humboldt
4 mi. W of Arcata on Lanphere Rd.
Comment
HSC19678
Rubus spectabilis
J. W. Johnson
1962-4-20
1277
Humboldt
Along the Lanphere Lane, Samoa Peninsula
Comment
HSC19681
Rubus spectabilis
J. L. Baker
1965-4-13
50
Humboldt
Humboldt Meridian, 4 mi. N of Arcata on N bank Rd.
Comment
HSC28139
Rubus spectabilis
J. D. Ackerman, A. M. Montalvo
1973-3-27
41
Humboldt
1.5 mi. N of Manila
Comment
HSC39968
Rubus spectabilis
Linda M. Barker
1976-3-22
1345
Humboldt
3 mi. W of Arcata
Comment
RSA245291
Rubus spectabilis
J. D. Ackerman, A. M. Montalvo
1973-3-27
41
Humboldt
1.5 miles N of Manila
Comment
UCD113808
Rubus spectabilis
Linda M. Barker
1976-3-22
1345
Humboldt
Lanphere-Christensen Dunes, 3 miles west of Arcata.
Comment
HSC38943
Rubus ursinus
Linda M. Barker
1976-6-1
1565
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata.
Comment
RSA183575
Rubus ursinus
R. I. Bonn
1965-4-23
19
Humboldt
4 miles W of Arcata on Lanphere Rd.
Comment
UCD113990
Rubus ursinus
Linda M. Barker
1976-6-1
1565
Humboldt
3 miles west of Arcata.
Comment
HSC17577
Rumex acetosella
Norman H. Moe
1962-3-21
Humboldt
Lanphere's Place
Comment
HSC17586
Rumex acetosella
R. I. Bonn
1965-5-7
30
Humboldt
4 mi. W of Arcata on Lanphere Rd.
Comment
HSC38935
Rumex acetosella
Linda M. Barker
1976-5-13
1483
Humboldt
3 mi. W of Arcata.
Comment
HSC95749
Rumex acetosella
Steven Lee
2004-4-26
33
Humboldt
Along Stuart Ave. W of of Alliance
Comment
UCD100980
Rumex acetosella
Linda M. Barker
1976-5-13
1483
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
UCD81680
Rumex acetosella
Chuck Hughes
2009-6-18
100
Humboldt
Near Arcata. NE corner of intersection of Old Samoa Road and Pacheco Road.
1
Comment
HSC39979
Rumex crassus
Linda M. Barker
1976-8-2
1672
Humboldt
Lanphere- Christensen Dunes, 3 mi. W of Arcata
Comment
UCD101114
Rumex crassus
Linda M. Barker
1976-8-2
1672
Humboldt
Coastal forest and dunes 3 miles west of Arcata.
Comment
HSC39980
Rumex crispus
Linda M. Barker
1976-6-22
1622
Humboldt
3 mi. W of Arcata
Comment
UCD101126
Rumex crispus
Linda M. Barker
1976-6-22
1622
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC4507
Salicornia depressa
Norman H. Moe
1962-5-19
Humboldt
Lanphere's Place, next to Mad River Slough
Comment
HSC93476
Salicornia depressa
Gordon Leppig
1998-8-6
995
Humboldt
Arcata Marsh and Wildlife Sanctuary; Humboldt Bay side of Klopp Lake dike
2
Comment
HSC95580
Salicornia depressa
Andrea Pickart
2002-7-19
180
Humboldt
Arcata Marsh at end of I St.
0
Comment
UCD99147
Salicornia pacifica
Gordon Leppig
1998-8-6
995
Humboldt
Arcata, Arcata Marsh and Wildlife Sanctuary. On Humboldt bay side of Klopp Lake dike.
2
Comment
CDA20313
Salicornia rubra
A. Pickart
2004-11-1
s.n.
Humboldt
Mad River Slough, Humboldt Bay.
0
Comment Read comments Aug 24 2011
CHSC79815
Salix alba
Gordon Leppig; Sylvia Leppig, Kai Leppig
2000-4-16
1297
Humboldt
Arcata, Arcata Marsh and Wildlife Sanctuary, West bank of Hauser Marsh. UTM zone 10, N4525 E407.
1
Comment
HSC94188
Salix alba
Gordon Leppig, Sylvia Leppig, Kai Leppig
2000-4-16
1297
Humboldt
Arcata Marsh and Wildlife Sanctuary, W bank of Hauser Marsh
1
Comment
CAS-BOT-BC106859
Salix hookeriana
John Johnson
1962-4-1
1188
Humboldt
Lanphere Ranch, about 4 miles west of Arcata
Comment
CAS-BOT-BC107676
Salix hookeriana
John Johnson
1962-4-1
1187
Humboldt
Lamphere Ranch, about 4 miles west of Arcata. Sand dune formation along beach
Comment
CAS-BOT-BC107677
Salix hookeriana
John Johnson
1962-3-15
1132
Humboldt
Lamphere Ranch, about 4 miles west of Arcata. Sand dune formation along beach
Comment
CHSC9556
Salix hookeriana
E. L. Smith
1971-4-6
926
Humboldt
Manila, 4 mi sw of Arcata, on w side of Humboldt Bay opposite Eureka.
Comment
CHSC9557
Salix hookeriana
E. L. Smith
1971-4-6
927
Humboldt
Manila, 4 mi sw of Arcata, on w side of Humboldt Bay opposite Eureka.
Comment
CHSC9652
Salix hookeriana
E. L. Smith
1971-8-18
1023
Humboldt
At Manila ca. 4 mi sw of Arcata, on w side of Humboldt Bay opposite of Eureka.
Comment
CHSC9653
Salix hookeriana
E. L. Smith
1971-8-18
1024
Humboldt
At Manila ca. 4 mi sw of Arcata, on w side of Humboldt Bay opposite Eureka.
Comment
HSC20065
Salix hookeriana
J. W. Johnson
1962-4-29
1296
Humboldt
Hollow 10, W.M. Lanphere Farm, Samoa Peninsula, Arcata
Comment
HSC33076
Salix hookeriana
Thomas W. Nelson, Jim Ackerman
1974-5-14
1265
Humboldt
Beside old Samoa-Crannell railroad bed adjacent to the Mad River Slough N of Emerson Mill
Comment
HSC40380
Salix hookeriana
Linda M. Barker
1976-3-22
1341
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata.
Comment
HSC40860
Salix hookeriana
Linda M. Barker
1976-4-13
1380
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata
Comment
HSC40861
Salix hookeriana
Linda M. Barker
1976-4-13
1382
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata
Comment
HSC40862
Salix hookeriana
Linda M. Barker
1976-4-30
1422
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata
Comment
HSC40863
Salix hookeriana
Linda M. Barker
1976-4-30
1416
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata
Comment
HSC40864
Salix hookeriana
Linda M. Barker
1976-4-30
1415
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata
Comment
HSC40869
Salix hookeriana
Linda M. Barker
1976-3-22
1340
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata.
Comment
HSC40870
Salix hookeriana
Linda M. Barker
1976-4-13
1383
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata
Comment
HSC40878
Salix hookeriana
Linda M. Barker
1976-9-3
1693
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata.
Comment
HSC40879
Salix hookeriana
Linda M. Barker
1976-6-14
1599
Humboldt
3 mi. W of Arcata, Lanphere-Christensen Dunes
Comment
HSC59447
Salix hookeriana
Kenneth Clark
1979-4-3
34
Humboldt
Manila, SW from end of Old Samoa Rd.
Comment
HSC96611
Salix hookeriana
Gordon Leppig
2005-4-8
2209
Humboldt
N spit, 200 m N of Samoa Bridge
4
Comment
RSA183566
Salix hookeriana
R. I. Bonn
1965-4-3
11
Humboldt
Four miles west of Arcata on Lanphere Rd.
Comment
UC1196544
Salix hookeriana
Joseph P. Tracy
1935-3-3
13715
Humboldt
near mouth Mad R.
6
Comment
UC1196553
Salix hookeriana
Joseph P. Tracy
1935-3-3
13714
Humboldt
mouth of Mad R.
6
Comment
UC1196672
Salix hookeriana
Joseph P. Tracy
1935-3-3
13717
Humboldt
mouth of Mad R.
6
Comment
UCD111030
Salix hookeriana
Linda M. Barker
1976-3-22
1340
Humboldt
3 miles west of Arcata.
Comment
UCD111034
Salix hookeriana
Linda M. Barker
1976-4-13
1380
Humboldt
3 miles west of Arcata.
Comment
UCD111036
Salix hookeriana
Linda M. Barker
1976-4-13
1382
Humboldt
3 miles west of Arcata.
Comment
UCD111037
Salix hookeriana
Linda M. Barker
1976-4-13
1383
Humboldt
3 miles west of Arcata.
Comment
UCD111038
Salix hookeriana
Linda M. Barker
1976-4-30
1415
Humboldt
3 miles west of Arcata.
Comment
UCD111039
Salix hookeriana
Linda M. Barker
1976-4-30
1416
Humboldt
3 miles west of Arcata.
Comment
UCD111041
Salix hookeriana
Linda M. Barker
1976-4-30
1422
Humboldt
3 miles west of Arcata.
Comment
UCD111042
Salix hookeriana
Linda M. Barker
1976-6-14
1599
Humboldt
3 miles west of Arcata.
Comment
UCD111043
Salix hookeriana
Linda M. Barker
1976-9-3
1693
Humboldt
3 miles west of Arcata.
Comment
HSC19978
Salix lasiandra
J. W. Johnson
1962-3-7
1171
Humboldt
Next to the barn of the Lanphere Farm, Samoa Peninsula
Comment
HSC40871
Salix lasiandra
Linda M. Barker
1976-9-3
1690
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata.
Comment
CAS-BOT-BC125217
Salix lasiandra var. lasiandra
W. J. Ferlatte
1967-6-13
1122
Humboldt
North bank of Mad River 1/4 mi. east of hwy. 101
6
Comment
UCD111531
Salix lasiandra var. lasiandra
Linda M. Barker
1976-9-3
1690
Humboldt
3 miles west of Arcata.
Comment
UC490508
Salix scouleriana
Joseph P. Tracy
1932-9-16
10795
Humboldt
near mouth of Mad River; Northern Coast Ranges
30
Comment
HSC96588
Salix sitchensis
Gordon Leppig
2003-2-22
1817
Humboldt
Mad River Beach, near parking lot
3
Comment
UC1196712
Salix sitchensis
Joseph P. Tracy
1935-3-3
13716
Humboldt
near mouth Mad R.
6
Comment
HSC59500
Sambucus racemosa var. racemosa
M. A. Ericksen
1979-4-6
202
Humboldt
880 Central Ave. McKinleyville.
Comment
UC154105
Sanicula arctopoides
J. P. Tracy
1901-4-14
1018
Humboldt
opposite Eureka (Ocean Beach at Samoa); Samoa, Ocean Beach
Comment
UC154106
Sanicula arctopoides
J. P. Tracy
1904-4-24
2021
Humboldt
opposite Eureka (Ocean Beach at Samoa); Samoa, Ocean Beach
Comment
HSC21630
Sanicula crassicaulis
J. W. Johnson
1962-4-18
1260
Humboldt
Arcata, between the Mad River mouth and the Hunt Farm, Samoa Peninsula.
Comment
HSC38937
Sanicula crassicaulis
Linda M. Barker
1976-5-13
1485
Humboldt
3 mi. W of Arcata.
Comment
HSC39444
Sanicula crassicaulis
Linda M. Barker
1976-6-1
1540
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata.
Comment
HSC39448
Sanicula crassicaulis
Linda M. Barker
1976-8-2
1669
Humboldt
Lanphere- Christensen Dunes, 3 mi. W of Arcata
Comment
UCD127965
Sanicula crassicaulis
Linda M. Barker
1976-5-13
1485
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
UCD127966
Sanicula crassicaulis
Linda M. Barker
1976-6-1
1540
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
SEINET3411470
Saxifraga mertensiana
Lincoln Constance, Reed C Rollins
1942-5-11
2869
Humboldt
Three miles W of East Fork of Willow Creek
Comment
UCD65995
Schedonorus arundinaceus
Linda M. Barker
1976-6-1
1566
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC21127
Scrophularia californica
R. I. Bonn
1965-5-9
44
Humboldt
4 mi. W of Arcata on Lanphere Rd.
Comment
HSC38928
Scrophularia californica
Linda M. Barker
1976-5-13
1473
Humboldt
3 mi. W of Arcata.
Comment
UCD124815
Scrophularia californica
Linda M. Barker
1976-5-13
1473
Humboldt
Lanphere-Christensen Dunes, 3 miles west of Arcata.
Comment
UCD135494
Senecio glomeratus
Linda M. Barker
1976-7-5
1634
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
CDA7642
Senecio mikanioides
Gordon Leppig
2000-2-15
1284
Humboldt
School Road 1/2 mile west of Central Avenue, McKinleyville.
Comment
UCD135616
Senecio minimus
Linda M. Barker
1976-8-2
1677
Humboldt
3 miles west of Arcata.
Comment
HSC39967
Senecio vulgaris
Linda M. Barker
1976-3-22
1337
Humboldt
3 mi. W of Arcata
Comment
UCD135816
Senecio vulgaris
Linda M. Barker
1976-3-22
1337
Humboldt
3 miles west of Arcata.
Comment
CHSC19501
Silene gallica
W. D. Stevens
1967-7-22
53
Humboldt
Above the dirt road from old Hwy 101 to the top of the north bank of the Mad River.
Comment
HSC40965
Silene gallica
Linda M. Barker
1976-6-14
1593
Humboldt
3 mi. W of Arcata
Comment
UCD98626
Silene gallica
Linda M. Barker
1976-6-14
1593
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
BLMAR705
Solidago spathulata
Jennifer Anthony-Wheeler
1994-9-8
705
Humboldt
Samoa/manilla dunes, growing in every dune mat area in the samoa rare plant protection area
12
Comment
CAS-BOT-BC365661
Solidago spathulata
Greg de Nevers
2001-4-18
12255
Humboldt
Lanphere-Christenson dunes, near Arcata
9
Comment
CAS-BOT-BC365670
Solidago spathulata
Ira L. Wiggins
1930-6-25
4616
Humboldt
2 miles north of Samoa
Comment
HSC40262
Solidago spathulata
Linda M. Barker
1976-8-2
1670
Humboldt
Lanphere- Christensen Dunes, 3 mi. W of Arcata
Comment
HSC47012
Solidago spathulata
Sheila Logan
1978-11-23
220
Humboldt
Manila; 1/4 mi. W of the junction of Samoa Blvd. and Redwood Gun Club Rd.
3
Comment
HSC6199
Solidago spathulata
J. W. Johnson
1961-8-17
1042
Humboldt
Arcata, W.M. Lanphere Farm, Samoa Peninsula.
Comment
HSC6200
Solidago spathulata
D. K. Smith
1968-11-9
61
Humboldt
Mad River Rd.
Comment
HSC90234
Solidago spathulata
L. Watson, J. Meninga
Aug 1990
10
Humboldt
Near Manilla. Mad River Slough and Dunes. 10 ft. N of parking lot, E of trail
Comment
RSA24389
Solidago spathulata
C. B. Wolf
1941-2-22
9916
Humboldt
Little River Beach State Park (north of Arcata).
8
Comment
UCD136059
Solidago spathulata
Linda M. Barker
1976-8-2
1670
Humboldt
Coastal forest and dunes 3 miles west of Arcata.
Comment
HSC39962
Soliva sessilis
Linda M. Barker
1976-4-13
1385
Humboldt
3 mi. W of Arcata
Comment
UCD136120
Soliva sessilis
Linda M. Barker
1976-4-13
1385
Humboldt
3 miles west of Arcata.
Comment
HSC39938
Sonchus oleraceus
Linda M. Barker
1976-7-5
1644
Humboldt
3 mi. W of Arcata
Comment
UCD136155
Sonchus oleraceus
Linda M. Barker
1976-7-5
1644
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
UCD136156
Sonchus oleraceus
Linda M. Barker
1976-6-1
1546
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC89909
Sparganium eurycarpum
Leonel Arguello
1989-7-14
Humboldt
Lanphere-Christensen Dunes Preserve 3 mi. W of Arcata.
Comment
CAS-BOT-BC235369
Spartina densiflora
Ken Berg
1986-7-28
637
Humboldt
Humboldt Bay, Arcata; foot of I Street
Comment
CAS-BOT-BC235370
Spartina densiflora
Ken Berg
1986-7-28
637
Humboldt
Humboldt Bay, Arcata; foot of I Street
Comment
CHSC69850
Spartina densiflora
Ken Berg
1986-7-28
637
Humboldt
Humboldt Bay Arcata; foot of I Street.
Comment
HSC10996
Spartina densiflora
J. A. Waller
1965-5-15
34
Humboldt
Samoa Rd. near Emmerson's Mill.
Comment
HSC38406
Spartina densiflora
J. P. Smith
1976-7-3
8938
Humboldt
Manila, Samoa Peninsula
Comment
HSC90229
Spartina densiflora
L. Watson, J. Meninga
Aug 1990
11
Humboldt
Near Manila, Mad River Slough and Dunes, 200 yds. N of parking lot
Comment
HSC93471
Spartina densiflora
Gordon Leppig
1998-8-6
992
Humboldt
Arcata Marsh and Wildlife Sanctuary.
2
Comment
RSA183496
Spartina densiflora
D. E. Anderson
1963-9-15
2814
Humboldt
Humbolt Bay
Comment
RSA244949
Spartina densiflora
D. E. Anderson
1963-9-15
2814
Humboldt
Humbolt Bay
Comment
UCD92967
Spartina densiflora
Phyllis Faber
1983-11-11
s.n.
Humboldt
Humboldt Bay, Arcata.
Comment
UCD92968
Spartina densiflora
Phyllis Faber
1983-11-11
s.n.
Humboldt
Humboldt Bay, Arcata.
Comment
UCD92969
Spartina densiflora
Keith B. Macdonald
1965-9-1
s.n.
Humboldt
Arcata, along Humboldt Bay.
Comment
RSA796313
Spartina foliosa
D. Kearns
1979-8-24
20
Humboldt
Arcata Bay. Near the Arcata Boat Launching Facility at the south end of I Street.
Comment
UCD92983
Spartina foliosa
Gordon Leppig
1998-8-6
992
Humboldt
Arcata, Arcata Marsh and Wildlife Sanctuary. On Humboldt bay side of Klopp Lake dike.
2
Comment
UCR21766
Spartina foliosa
Denis Kearns
1979-8-24
20
Humboldt
North Coast, near the Arcata Boat Launching Facility at the south end of 'I' Street
1
Comment
UCSB34193
Spartina foliosa
Kearns, Dennis
1979-8-24
Humboldt
Spring Tide Area of Arcata Bay, Arcata Boat Launching Facility at the South end of "I" Street
Comment
UCSB34197
Spartina foliosa
Denis Kearns
1979-8-24
20
Humboldt
collected near the Arcata Boat Launchin Facility at the S-end of I Street Arcata Boat Launchin Facility and I Street
Comment
HSC4235
Spergula arvensis
R. I. Bonn
1965-5-9
39
Humboldt
4 mi. W of Arcata on Lanphere Rd.
Comment
HSC59047
Spergula arvensis
Thomas Wood
1979-4-4
93
Humboldt
Near Arcata, 3/4 mi. W on Lanphere Rd. after triple intersection with Upper Bay Rd. and Mad River Rd.
0
Comment
HSC89986
Spergularia canadensis var. occidentalis
Leonel Arguello
1989-7-15
Humboldt
Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata
Comment
HSC95590
Spergularia canadensis var. occidentalis
Andrea Pickart
2002-7-19
181
Humboldt
Arcata Marsh at end of I St.
0
Comment
RSA0098559
Spergularia marina
George K. Helmkamp, E. A. Helmkamp
2001-7-8
7007
Humboldt
North coastal strand: North spit of Samoa Peninsula, 0.5 miles N of CA-255 bridge over Humboldt Bay.
6
Comment
HSC4265
Spergularia salina
Norman H. Moe
1962-5-17
Humboldt
Lanphere's Place
Comment
HSC40970
Spiraea douglasii
Linda M. Barker
1976-6-14
1600
Humboldt
3 mi. W of Arcata
Comment
UCD114050
Spiraea douglasii
Linda M. Barker
1976-6-14
1600
Humboldt
3 miles west of Arcata.
Comment
HSC40375
Spiranthes romanzoffiana
Linda M. Barker
1976-9-3
1695
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata.
Comment
JEPS63019
Stachys arvensis
H. B. Tucker
1935-4-5
Humboldt
Arcata Bottom; Arcata
9
Comment
UC1239723
Stachys arvensis
H. B. Tucker
1935-3-20
Humboldt
Moron Ranch Arcata Bottom
9
Comment
UC552241
Stachys arvensis
H. B. Tucker
1935-4-5
Humboldt
Arcata Bottom; Arcata
9
Comment
HSC40957
Stachys chamissonis
Linda M. Barker
1976-8-24
1683
Humboldt
3 mi. W of Arcata
Comment
SDSU7904
Stachys chamissonis
Harvey
1938-8-13
2269
Humboldt
North of Arcata.
Comment
UCD125774
Stachys chamissonis
Linda M. Barker
1976-8-24
1683
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC14414
Stachys rigida
Norman H. Moe
1962-5-19
Humboldt
Lanphere's Place, SW corner of pasture
Comment
HSC40302
Stellaria media
Linda M. Barker
1976-4-30
1396
Humboldt
3 mi. W of Arcata
Comment
HSC40427
Stellaria media
Linda M. Barker
1976-2-22
1320
Humboldt
3 mi. W of Arcata
Comment
UCD99372
Stellaria media
Linda M. Barker
1976-4-30
1396
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
CHSC10151
Symphyotrichum chilense
J. W. Johnson
1961-8-23
1048
Humboldt
Arcata. Along the sides of the Lanphere County Road by Mad River Slough.
Comment
HSC39446
Symphyotrichum chilense
Linda M. Barker
1976-8-2
1676
Humboldt
Lanphere-Christensen Dunes; 3 mi. W of Arcata
Comment
HSC5047
Symphyotrichum chilense
J. W. Johnson
1961-8-23
1048
Humboldt
Arcata; along the sides of the Lanphere Co. Rd. by Mad River Slough
Comment
CDA5590
Symphytum asperum
T. C. Fuller
1961-9-28
7047
Humboldt
Iverson property, Arcata Bottoms, 0.5 mile south of the Mad River, 0.75 mile west of Highway 101, 2 miles north of Arcata.
0
Comment
CDA5591
Symphytum asperum
T. C. Fuller
1961-9-28
7047
Humboldt
Iverson property, Arcata Bottoms, 0.5 mile south of the Mad River, 0.75 mile west of Highway 101, 2 miles north of Arcata.
0
Comment
RSA153390
Symphytum asperum
T. C. Fuller
1961-9-28
7047
Humboldt
Humboldt County: Arcata Bottoms, 0.5 mile S of the Mad River, 0.75mile W of Hwy 101, 2miles N of Arcata
Comment
UC1222193
Symphytum asperum
Joseph P. Tracy
1943-10-3
17448
Humboldt
bottom Arcata (near Iversen dairy ranch)
Comment
UCD120749
Symphytum uplandicum
T. C. Fuller
1961-9-28
7047
Humboldt
Iverson prop., Arcata Bottoms, 0.5 mi. s. of the Mad River, 0.75 mi. w. of Hwy 101, 2 mi. n. of Arcata.
Comment
HSC40942
Tanacetum bipinnatum
Linda M. Barker
1976-6-1
1561
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata.
Comment
UCD136742
Tanacetum bipinnatum
Linda M. Barker
1976-6-1
1561
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
UC1199290
Tanacetum camphoratum
J. P. Tracy
1901-8-7
1269
Humboldt
opposite Eureka (Ocean Beach at Samoa); Samoa, Ocean Beach
Comment
UC166081
Tanacetum camphoratum
J. P. Tracy
1909-7-18
3020
Humboldt
opposite Eureka (ocean beach at Samoa); Samoa
Comment
HSC40005
Toxicodendron diversilobum
Linda M. Barker
1976-9-3
1697
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata.
Comment
IRVC21927
Toxicodendron diversilobum
J. W. Johnson
Jul 1962
1397
Humboldt
Base of the Samoa Peninsula in the Lamphere-Christensen Dunes Preserve.
Comment
UCD116958
Toxicodendron diversilobum
Linda M. Barker
1976-9-3
1697
Humboldt
3 miles west of Arcata.
Comment
HSC15115
Trifolium dubium
Norman H. Moe
1962-5-19
Humboldt
Lanphere's Place
Comment
HSC38929
Trifolium dubium
Linda M. Barker
1976-5-13
1476
Humboldt
3 mi. W of Arcata.
Comment
UCD108818
Trifolium dubium
Linda M. Barker
1976-5-13
1476
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
UC1223451
Trifolium fragiferum
Joseph P. Tracy
1934-7-27
13490
Humboldt
mouth Mad River
Comment
UC1223461
Trifolium fragiferum
Joseph P. Tracy
1937-7-20
15447
Humboldt
mouth Mad River
Comment
HSC15183
Trifolium gracilentum
Norman H. Moe
1962-5-19
Humboldt
Lanphere's Place
Comment
CHSC70013
Trifolium macraei
Sydney Carothers
1995-6-13
Humboldt
Lanphere-Christensen Dunes Preserve, 3 mi. west of Arcata.
Comment
HSC49103
Trifolium macraei
Catherine Best
1979-5-20
Humboldt
Lanphere-Christensen Dunes
Comment
HSC92107
Trifolium macraei
Sydney Carothers
1995-6-13
Humboldt
Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata
Comment
HSC95079
Trifolium macraei
Andrea Pickart
2002-7-3
156
Humboldt
Lanphere Dunes: Big Dune, Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge
0
Comment
HSC40939
Trifolium microcephalum
Linda M. Barker
1976-6-1
1558
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata.
Comment
HSC95210
Trifolium microcephalum
Andrea Pickart
2002-7-3
155
Humboldt
Lanphere Dunes: Big Dune, Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge
0
Comment
JEPS65952
Trifolium microcephalum
W. L. Jepson
1936-8-17
17938
Humboldt
near Arcata (Mad River)
Comment
CHSC10113
Trifolium microdon
J. W. Johnson
1962-5-13
1354
Humboldt
Arcata. On stabilized sand of ridge 3, Christenson Farm, Samoa Peninsula.
Comment
HSC15150
Trifolium microdon
J. W. Johnson
1962-6-4
1430
Humboldt
Arcata, W.M. Lanphere Farm, Samoa Peninsula.
Comment
HSC40950
Trifolium microdon
Linda M. Barker
1976-6-1
1544
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata.
Comment
HSC95073
Trifolium microdon
Andrea Pickart
2002-7-3
154
Humboldt
Lanphere Dunes: Big Dune, Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge
0
Comment
HSC95594
Trifolium microdon
Andrea Pickart
2002-5-13
102
Humboldt
Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge
0
Comment
UCD109162
Trifolium microdon
Linda M. Barker
1976-6-1
1544
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC15165
Trifolium repens
Norman H. Moe
1962-5-19
Humboldt
Lanphere's Place
Comment
HSC103979
Trifolium subterraneum
Kyle Brown
2015-4-25
42
Humboldt
Arcata, trail along the Mad River
8
Comment
CHSC10114
Trifolium wormskioldii
J. W. Johnson
1961-8-17
1009
Humboldt
Arcata. In a vernal pond community of Hollow 10 W. M. Lanphere Farm. Samoa Peninsula.
Comment
HSC15194
Trifolium wormskioldii
Norman H. Moe
1962-5-17
Humboldt
Lanphere's Place.
Comment
HSC40959
Trifolium wormskioldii
Linda M. Barker
1976-6-1
1547
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata.
Comment
UCD109909
Trifolium wormskioldii
Linda M. Barker
1976-6-1
1547
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC14178
Triglochin maritima
D. E. Anderson
1962-5-10
2209
Humboldt
Lanphere's
Comment
HSC62989
Triglochin maritima
David Wheeler
1979-4-22
79
Humboldt
Mad River Slough, 1 mi. W of the intersection of Mad River Rd. and Iverson Rd.
Comment
HSC89895
Triglochin maritima
Leonel Arguello
1989-6-11
Humboldt
Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata
Comment
RSA667224
Triglochin maritima
George K. Helmkamp, E. A. Helmkamp
2001-7-8
6995
Humboldt
North coastal strand: North spit of Samoa Peninsula, 0.5 miles N of CA-255 bridge over Humboldt Bay.
6
Comment
HSC95729
Trillium ovatum
Steven Lee
2004-4-13
19
Humboldt
Hillside along Jolly Giant Creek, Arcata Community Forest
Comment
UC213508
Triodanis biflora
J. P. Tracy
1919-4-27
5131
Humboldt
sand hills of Ocean Beach at Samoa (opp. Eureka); Ocean Beach
Comment
HSC40372
Triphysaria pusilla
Linda M. Barker
1976-4-30
1425
Humboldt
3 mi. W of Arcata
Comment
HSC104272
Triphysaria versicolor subsp. versicolor
Samantha E. Andres
2016-5-4
6
Humboldt
Along Jackson Ranch Rd., near the bridge; ~.25 mi. from Hwy. 255 intersection
3
Comment
HSC40953
Triphysaria versicolor subsp. versicolor
Linda M. Barker
1976-4-30
1424
Humboldt
3 mi. W of Arcata
Comment
UCD123426
Triphysaria versicolor subsp. versicolor
Linda M. Barker
1976-4-13
1424
Humboldt
3 miles west of Arcata.
Comment
HSC89902
Trisetum canescens
Leonel Arguello
1989-7-22
Humboldt
Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata
Comment
HSC39045
Tsuga heterophylla
Linda M. Barker
1976-6-14
1589
Humboldt
3 mi. W of Arcata
Comment
UCD135133
Tsuga heterophylla
Linda M. Barker
1976-6-14
1589
Humboldt
Lanphere-Christensen Dunes, coastal forest and dunes 3 miles west of Arcata.
Comment
HSC59799
Umbellularia californica
Clark L. Miller
1979-5-24
8
Humboldt
At 880 Central Ave. McKinleyville
Comment
HSC40006
Urtica dioica subsp. gracilis
Linda M. Barker
1976-9-3
1696
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata.
Comment
UCD111533
Urtica dioica subsp. gracilis
Linda M. Barker
1976-9-3
1696
Humboldt
3 miles west of Arcata.
Comment
CAS-BOT-BC199325
Vaccinium ovatum
Ira L. Wiggins
1930-6-25
4613
Humboldt
2 miles north of Samoa
Comment
CHSC19510
Vaccinium ovatum
P. F. Yull
1966-3-24
112
Humboldt
South of Manila School. 120 yards from ocean.
Comment
GH363202
Vaccinium ovatum
I. L. Wiggins
1930-6-25
4613
Unknown
Sand dunes 2 miles north of Samoa
Comment
HSC28133
Vaccinium ovatum
J. D. Ackerman, A. M. Montalvo
1973-3-27
45
Humboldt
1.5 mi. N of Manila
Comment
HSC40255
Vaccinium ovatum
Linda M. Barker
1976-4-30
1423
Humboldt
3 mi. W of Arcata
Comment
HSC7904
Vaccinium ovatum
R. A. Rasp
1964-5-20
43
Humboldt
4 mi. W of Arcata off Lanphere Rd. on Lanphere Ranch
Comment
HSC7906
Vaccinium ovatum
J. W. Johnson
1962-3-25
1418
Humboldt
Arcata, along section line, Christenson Farm, Samoa Peninsula
Comment
HSC7912
Vaccinium ovatum
W. R. Rogers
1966-5-1
225
Humboldt
Mill Creek
Comment
HSC90226
Vaccinium ovatum
L. Watson, J. Meninga
Mar 1991
20
Humboldt
Near Manilla, Mad River Slough and Dunes N of parking lot, W of trail
Comment
HSC95645
Vaccinium ovatum
Andrea Pickart
2002-4-5
41
Humboldt
Lanphere Dunes
15
Comment
POM232033
Vaccinium ovatum
I. L. Wiggins
1930-6-25
4613
Humboldt
Sand dunes 2 miles north of Samoa.
Comment
UCD118072
Vaccinium ovatum
Linda M. Barker
1976-4-30
1423
Humboldt
3 miles west of Arcata.
Comment
UCD118091
Vaccinium ovatum
Gordon Leppig
1998-6-26
854
Humboldt
McKinleyville, Rt. 101 @ Mad River Overlook.
24
Comment
UCR178913
Vaccinium ovatum
R. G. Swinney
1968-4-13
242
Humboldt
North Coast, Lanphere's Preserve, west of Arcata
15
Comment
HSC90236
Vicia americana var. americana
L. Watson, J. Meninga
Apr 1991
23
Humboldt
Near Manilla, Mad River Slough and Dunes. N end of parking lot, W side of trail.
Comment
HSC90225
Vicia hirsuta
L. Watson, J. Meninga
Apr 1991
24
Humboldt
Near Manilla, Mad River Slough and Dunes. N end of parking lot, W side of trail.
Comment
UCD108675
Vicia hirsuta
Linda M. Barker
1976-5-13
1479
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
JEPS76829
Vicia sativa subsp. nigra
L. R. Heckard with T. I. Chuang and R. C. Bacigalupi
1978-5-27
4807
Humboldt
about 1.2 mi n Eureka bridge (Samoa peninsula)
Comment
UC709406
Vicia sativa subsp. nigra
Joseph P. Tracy
1934-6-23
13248
Humboldt
Arcata Bottom
15
Comment
UCD108854
Vicia sativa subsp. nigra
Linda M. Barker
1976-5-13
1481
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC104036
Vicia villosa subsp. villosa
E. R. Fyer
2015-4-26
22
Humboldt
At turnout off Samoa Blvd., at railroad bridge
3
Comment
HSC15282
Vicia villosa subsp. villosa
D. E. Anderson
1962-5-10
2210
Humboldt
Lanphere's
Comment
HSC3227
Vinca major
Eugene Andreuccetti
1964-4-30
31
Humboldt
300 yards from Iverson Rd., along Mad River.
Comment
HSC104101
Vulpia bromoides
Kyle Brown
2015-4-25
50
Humboldt
Arcata, trail along the Mad River
8
Comment
HSC40344
Vulpia bromoides
Linda M. Barker
1976-5-13
1478
Humboldt
3 mi. W of Arcata.
Comment
HSC40867
Vulpia bromoides
Linda M. Barker
1976-4-30
1398
Humboldt
3 mi. W of Arcata
Comment
HSC40949
Vulpia bromoides
Linda M. Barker
1976-6-1
1543
Humboldt
Lanphere-Christensen Dunes, 3 mi. W of Arcata.
Comment
HSC9830
Vulpia bromoides
T. L. Ackerman
1964-4-10
30
Humboldt
At Turner Draw on U.S. 101, near Mad River.
Comment
HSC9837
Vulpia bromoides
J. W. Johnson
1962-5-9
1347
Humboldt
Christenson Farm, Samoa Peninsula.
Comment
HSC9838
Vulpia bromoides
J. W. Johnson
1962-4-29
1303
Humboldt
W.M. Lanphere Farm, Samoa Peninsula, Arcata.
Comment
HSC9839
Vulpia bromoides
J. W. Johnson
1962-4-18
1266
Humboldt
Along the lane below the W.M. Lanphere Home, Samoa Peninsula
Comment
HSC9841
Vulpia bromoides
J. W. Johnson
1962-5-9
1350
Humboldt
Christenson Farm, Samoa Peninsula.
Comment
POM183574
Vulpia bromoides
R. I. Bonn
1965-5-7
21
Humboldt
Four miles west of Arcata on Lamphere Rd.
Comment
UCD93441
Vulpia bromoides
Linda M. Barker
1976-4-30
1398
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
UCD93442
Vulpia bromoides
Linda M. Barker
1976-6-1
1543
Humboldt
Lanphere-Christensen Dunes. 3 miles west of Arcata.
Comment
HSC89911
Vulpia myuros
Leonel Arguello
1989-8-20
Humboldt
Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata, alongside N Dune loop trail.
Comment
HSC9937
Vulpia myuros
J. W. Johnson
1962-4-8
1230
Humboldt
Arcata, Mad River Co. Park
Comment
HSC9939
Vulpia myuros
R. H. Berg
1963-4-18
54
Humboldt
Arcata Bottoms, Arcata.
Comment
BLMAR442
Xanthium spinosum
Jennifer Anthony-Wheeler
2008-10-1
442
Humboldt
Humboldt County, growing on Collenberg dairy, Mad River Road
7
Comment
UC1197336
Yabea microcarpa
J. P. Tracy
1901-5-18
1100
Humboldt
opposite Eureka (Sand Hills of Ocean Beach at Samoa); Samoa
Comment
JEPS110509
Zostera japonica
Gordon Leppig and David Couch
2006-11-17
2396
Humboldt
Arcata Bay, mudflat W of City of Arcta oxidtion ponds, upper intetidal zone, 2 m from dike
Comment
HSC62988
Zostera marina
David Wheeler
1979-4-22
78
Humboldt
Mad River Slough, 1 mi. W of intersection of Mad River Rd. and Iverson Rd.
Comment
HSC90651
Zostera marina
L. Watson, J. Meninga
Sep 1991
42
Humboldt
Cooperative Management Area, Mad River Slough and dunes
Comment