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Specimen ID
Determination *
Collector
Collection Date
Collection Number
County
Locality
Elevation in meters
Feedback
CAS-BOT-BC21726
Achillea millefolium
Alice Eastwood; J. T. Howell
1941-4-23
8635
Sacramento
Between the Antioch and Rio Vista bridges
Comment
CDA19209
Agrostis viridis
Whitlock
2001-4-3
PDR 041591
Contra Costa
San Francisco Bay Area; At San Joaquin yacht harbor, Antioch.
0
Comment
CAS-BOT-BC170931
Alnus rhombifolia
Walter Knight
1965-3-1
910
Contra Costa
Antioch Dunes, along water's edge - Carquinez Straights
Comment
CAS-BOT-BC55590
Ambrosia psilostachya
Walter Knight
1965-9-7
1167
Contra Costa
San Joaquin River at Antioch sand dunes
Comment
UC1584662
Ambrosia psilostachya
Jerry Powell
1990-8-29
1585
Contra Costa
Antioch National Wildlife Refuge
Comment
UC725802
Amsinckia
A. A. Heller
1941-3-24
15904
Sacramento
Upper Sherman Island
Comment
JEPS18323
Amsinckia menziesii var. menziesii
Rimo Bacigalupi with F. Chisaki
1957-3-27
5758
Contra Costa
1 1/2 mi e of Antioch (city limits, just e of Kaiser Gypsum Plant, along Wilbur Avenue Road)
9
Comment
UC1178245
Amsinckia menziesii var. menziesii
Francia Chisaki and R. Bacigalupi
1957-3-27
911
Contra Costa
1.5 mi e of Antioch City limits (just e of Kaiser Gypsum Plant along Wilbur Avenue)
Comment
UC196982
Ancistrocarphus filagineus
Chesnut and Drew
1889-4-18
Contra Costa
sand hills Antioch
Comment
UC1594204
Apocynum cannabinum
Jerry Powell
1991-6-11
1606
Contra Costa
Antioch Nat'l Wildlife Refuge
Comment
UC1584664
Artemisia douglasiana
Jerry Powell
1990-8-29
1591
Contra Costa
Antioch National Wildlife Refuge
Comment
UC1584665
Artemisia douglasiana
Jerry Powell
1990-8-29
1592
Contra Costa
Antioch National Wildlife Refuge
Comment
UC1584696
Artemisia douglasiana
Jerry Powell
1990-8-29
1591
Contra Costa
Antioch National Wildlife Refuge
Comment
UC1584697
Artemisia douglasiana
Jerry Powell
1990-8-29
1591
Contra Costa
Antioch National Wildlife Refuge
Comment
UC1584827
Asparagus officinalis subsp. officinalis
Jerry Powell
1990-8-29
1589
Contra Costa
Antioch National Wildlife Refuge
Comment
GH376898
Azolla mexicana
Steven Talley
1977-09-01 - 1977-10-01
Unknown
West end of Sherman Island
Comment
CDA32857
Baccharis salicifolia
D. G. Kelch
2010-10-5
10 .418
Contra Costa
The Delta; Just east of Antioch bridge.
Comment
UC1057486
Calystegia sepium subsp. binghamiae
G. Thomas Robbins
1940-5-19
327
Contra Costa
San Joaquin River e Antioch; San Joaquin River e of Antioch
Comment
UC1594199
Calystegia sepium subsp. binghamiae
Jerry Powell
1991-8-15
1614
Contra Costa
Antioch National Wildlife Refuge
Comment
CAS-BOT-BC224745
Calystegia sepium subsp. limnophila
R. K. Brummitt; B. Ertter
1998-5-6
19792
Contra Costa
Antioch. Sea level
Comment
RSA710326
Calystegia sepium subsp. limnophila
R. K. Brummitt, Barbara Ertter, N. A. Brummitt
1998-5-6
19792
Contra Costa
Antioch, by marina.
Comment
SEINET3449072
Calystegia sepium subsp. limnophila
Dean G. Kelch, Andrew G. Murdock
2004-7-9
DGK 4 .289
Contra Costa
Crockett, Crockett, immediately below high school, Edwards Creek
4
Comment
UC1084506
Camissonia campestris subsp. campestris
G. Thomas Robbins
1940-5-19
328
Contra Costa
e Antioch (slope above river); San Joaquin River
Comment
UC635287
Camissonia campestris subsp. campestris
H. L. Mason
1929-3-31
5153
Contra Costa
Antioch San Joaquin River (sand dike along river)
Comment
UC635291
Camissonia campestris subsp. campestris
H. L. Mason
1931-4-5
5820
Contra Costa
Antioch sandhills
Comment
RSA41303
Camissonia micrantha
Robert F. Hoover
1935-3-10
314
Contra Costa
Antioch sand-dunes
Comment
UC35344
Camissoniopsis micrantha
Chesnut and Drew
1889-4-18
Contra Costa
Sand Hills Antioch
Comment
UC635405
Camissoniopsis micrantha
H. L. Mason
1929-3-31
5160
Contra Costa
Antioch San Joaquin River (sand dike along river)
Comment
UC764055
Camissoniopsis micrantha
Robert F. Hoover
1935-3-10
314
Contra Costa
Antioch sand-dunes
Comment
CAS-BOT-BC19206
Carex barbarae
Walter Knight; Irja Knight
1977-6-18
s.n.
Contra Costa
About 50 ft. from shore of San Joaquin River. Antioch sand dunes, Little Corral site.
Comment
JEPS16805
Castilleja exserta subsp. exserta
Rimo Bacigalupi with G. Thomas Robbins
1955-5-4
4983
Contra Costa
1.25 mi e Antioch (near the San Joaquin River)
9
Comment
UC27244
Castilleja exserta subsp. exserta
R. C. Marsh
1900-4-5
Contra Costa
Oakley; Mount Diablo Region
Comment
UC1178020
Centaurium muehlenbergii
Herbert L. Mason
1955-7-14
14637
Contra Costa
0.5 mi e Antioch Bridge
Comment
UC1178029
Centunculus minimus
Herbert L. Mason
1955-7-14
14632 a
Contra Costa
1/2 mi e of Antioch Bridge
Comment
UC1594163
Cephalanthus occidentalis var. californicus
Jerry Powell
1991-6-11
1607
Contra Costa
Antioch National Wildlife Refuge
Comment
UC1594173
Cephalanthus occidentalis var. californicus
Jerry Powell
1991-8-15
1612
Contra Costa
Antioch National Wildlife Refuge
Comment
UC565564
Chaenactis glabriuscula var. glabriuscula
H. L. Mason
1929-3-31
5157
Contra Costa
Antioch, sand dikes along San Joaquin River San Joaquin River, Antioch
Comment
CAS-BOT-BC284217
Chaenactis glabriuscula var. megacephala
A. A. Heller
1908-4-16
8894
Contra Costa
East of Antioch
22
Comment
UC14076
Chenopodium californicum
Chesnut and Drew
1889-4-18
Contra Costa
Antioch; sand hills
Comment
UC1789151
Cinnamomum camphora
Barbara Ertter
2001-5-26
17653
Contra Costa
Stamm Unit of Antioch Dunes National Wildlife Refuge east of Antioch, two young individuals at base of river bank.
Comment
RSA41158
Clarkia unguiculata
Robert F. Hoover
1937-5-14
2110
Contra Costa
Antioch sand-dunes
Comment
UC765869
Clarkia unguiculata
R. F. Hoover
1937-5-14
2110
Contra Costa
Antioch sand-dunes
Comment
CAS-BOT-BC443683
Claytonia perfoliata subsp. perfoliata
Walter Knight
1965-3-1
904
Contra Costa
Antioch dunes
Comment
CHSC96777
Convolvulus arvensis
T. C. Fuller
1961-9-13
6998
Sacramento
Sacramento River Delta. Sacramento County. Sherman Island, 1 mi N of Antioch Bridge.
Comment
CHSC97946
Convolvulus arvensis
T. C. Fuller
1961-9-13
6998
Sacramento
Common in safflower, Sherman Island, 1 mi N of Antioch Bridge.
Comment
UCR182952
Convolvulus arvensis
T. C. Fuller
1961-9-13
6998
Sacramento
Sacramento River Delta: Sherman Island, 1 mile north of Antioch Bridge
Comment
UC1594168
Conyza bilbaoana
Jerry Powell
1616
Contra Costa
Antioch National Wildlife Refuge Contra Costa
Comment
UC1584663
Conyza canadensis
Jerry Powell
1990-8-29
1586
Contra Costa
Antioch National Wildlife Refuge
Comment
JEPS68960
Crassula connata
Edward Lee
1935-3-10
1292
Contra Costa
Antioch Sand Dunes e. of Antioch; Antioch Sand Dunes
Comment
JEPS79011
Croton californicus
Edward Lee with Annetta Carter
1935-10-17
1626
Contra Costa
Antioch; dunes
Comment
JEPS79012
Croton californicus
Edward Lee with Annetta Carter
1935-10-17
1626
Contra Costa
Antioch; dunes
Comment
UC1084501
Croton californicus
G. Thomas Robbins
1940-5-19
322
Contra Costa
e Antioch (sand hills bordering river); San Joaquin River
Comment
UC765094
Croton californicus
R. F. Hoover
1937-5-14
2113
Contra Costa
Antioch sand-dunes
Comment
UC765095
Croton californicus
R. F. Hoover
1937-5-14
2114
Contra Costa
Antioch sand-dunes
Comment
CDA32859
Crypsis schoenoides
D. G. Kelch
2010-10-5
10 .421
Contra Costa
The Delta; Just east of Antioch bridge.
Comment
GH424859
Cryptantha hooveri
A. A. Heller
1908-4-16
8888
Unknown
east of Antioch
22
Comment Read comments Oct 24 2012
UC24711
Cryptantha intermedia
unknown
1900-3-24
Contra Costa
Oakley
Comment
UCR51833
Cuscuta californica
P. A. Munz
1947-10-8
12200
Contra Costa
Dunes near Antioch
8
Comment
UCD33560
Cynara cardunculus
Beecher Crampton
1970-3-10
8535
Sacramento
S.W. tip of Sherman Island.
Comment
CDA1937
Cynodon dactylon
T. C. Fuller
1961-9-13
6994
San Joaquin
Delta; Sherman Island, ca. 4 miles east of Thornton; Thornton-Walnut Grove Road, 0.1 mile east of Mokelumne River Bridge.
0
Comment
JEPS64110
Cyperus eragrostis
W. L. Jepson
1923-10-4
10214
Sacramento
Sherman Isl.
Comment
UC69615
Delphinium parryi subsp. parryi
R. C. Marsh
1900-4-5
Contra Costa
Oakley
Comment
UCD61248
Deschampsia cespitosa
Ann F. Johnson
1978-5-26
AN- 23
Contra Costa
At edge of San Joaquin River, Antioch Dunes.
Comment
UCD84918
Deschampsia cespitosa subsp. holciformis
Chuck Hughes
2010-6-23
191
Sacramento
75 feet northwest of West Sherman Island Road.
0
Comment
UCD32994
Echinochloa crus-pavonis
Beecher Crampton
1965-9-29
7532
Sacramento
Sacramento County, Sherman Island just north of Antioch Bridge on Hwy. 24.
Comment
UCD60941
Echinochloa crus-pavonis var. crus-pavonis
Beecher Crampton
1965-9-29
7532
Sacramento
Sherman Island, just north of the Antioch Bridge, State Hwy. 24.
Comment
UC702897
Elaeagnus angustifolia
Dr. E. C. Van Dyke
1941-10-4
Contra Costa
River e of Antioch
Comment
UCR11895
Elaeagnus angustifolia
E. C. Van Dyke
1941-10-4
s.n.
Contra Costa
[San Joaquin] river bank east of Antioch
15
Comment
CAS-BOT-BC57103
Equisetum X ferrissii
W. Knight; I. Knight
1977-5-22
s.n.
Contra Costa
Antioch Dunes
Comment
JEPS60130
Equisetum X ferrissii
W. L. Jepson
1923-10-4
10217
Sacramento
Sherman Isl.; Lower Sacramento River
Comment
JEPS79321
Erigeron foliosus var. franciscensis
Edward Lee with Annetta Carter
1935-8-17
1633
Contra Costa
Antioch sand-dunes
Comment
RSA39906
Eriogonum nudum var. auriculatum
P. A. Munz
1947-10-8
12204
Contra Costa
Sand dunes east of Antioch
8
Comment
JEPS79013
Eriogonum nudum var. psychicola
Edward Lee with Annetta Carter
1935-8-17
1630
Contra Costa
Antioch sand-dunes
Comment
UC1229891
Eriogonum nudum var. psychicola
Jerry Powell
1962-8-19
308
Contra Costa
about 2 mi e Antioch
Comment
UC1926783
Eriogonum nudum var. psychicola
Barbara Ertter
1997-8-18
15766
Contra Costa
Contra Costa County: Antioch Dunes on San Joaquin River east of Antioch.
Comment
POM89812
Eriogonum truncatum
M. K. Curran
1886-05
s.n.
Contra Costa
Antioch
Comment
UC85720
Eriogonum truncatum
M. K. Curran
May 1886
Contra Costa
Antioch
Comment
SEINET8673416
Eryngium articulatum
Lincoln Constance, Bell, C. Ritchie; Keng, Hsuan
1957-8-21
3657
Sacramento
Sherman Island, margin of San Joaquin River 0.5 mile E. of Antioche Bridge
0
Comment
UC1093587
Eryngium articulatum
L. Constance, C. R. Bell, and Hsuan Keng
1957-8-21
3657
Sacramento
0.5 mi. e. Antioch Bridge (margin of San Joaquin R., Sherman Island); San Joaquin R., Sherman Isl.
Comment
UC1584829
Eryngium articulatum
Jerry Powell
1990-8-29
1587
Contra Costa
Antioch Nat'l Wildlife Refuge
Comment
CAS-BOT-BC40767
Erysimum capitatum
G. B. Rossbach
1955-3-13
570
Contra Costa
Along tidal estuary of San Joaquin River just east of Antioch.
24
Comment
CAS-BOT-BC40768
Erysimum capitatum
G. B. Rossbach; R. P. Rossbach
1938-6-5
858 a
Contra Costa
Along tidal estuary of San Joaquin River just east of Antioch.
Comment
CAS-BOT-BC40769
Erysimum capitatum
G. B. Rossbach; R. P. Rossbach
1938-6-5
858 b
Contra Costa
Along tidal estuary of San Joaquin River just east of Antioch.
Comment
CAS-BOT-BC40774
Erysimum capitatum
J. H. Thomas
1953-4-25
3010
Contra Costa
Antioch sand hills along San Joaquin River, 0.2 mile west of Antioch Bridge.
Comment
CAS-BOT-BC41526
Erysimum capitatum
H. L. Mason
1933-4-9
7189
Contra Costa
East of Antioch along the San Joaquin River.
12
Comment
NY32657
Erysimum capitatum subsp. angustatum
A. A. Heller
1908-4-16
8898
Contra Costa
Sand hills east of Antioch.
22.9
Comment
NY32658
Erysimum capitatum subsp. angustatum
H. L. Mason
1933-4-9
7189
Contra Costa
East of Antioch along the San Joaquin River.
12.2
Comment
GH379524
Erysimum capitatum var. angustatum
G. B. Rossbach & R. P. Rossbach
1938-6-5
858
Unknown
along tidal estuary of San Joaquin River, just east of Antioch
Comment
GH379525
Erysimum capitatum var. angustatum
G. B. Rossbach
1955-3-13
570
Unknown
Dunes along tidal estuary of San Joaquin R just E of Antioch
24
Comment
GH379526
Erysimum capitatum var. angustatum
H. L. Mason
1933-4-9
7189
Unknown
East of Antioch along the San Joaquin River
12
Comment
GH379532
Erysimum capitatum var. angustatum
R. F. Hoover
1937-5-14
2111
Unknown
Antioch sand-dunes
Comment
POM272844
Erysimum capitatum var. angustatum
H. L. Mason
1933-4-9
7189
Contra Costa
East of Antioch along the San Joaquin River.
12
Comment
RSA102133
Erysimum capitatum var. angustatum
G. B. Rossbach
1955-3-13
570
Contra Costa
Along tidal estuary of San Joaquin River just E of Antioch
24
Comment
JEPS68964
Erysimum capitatum var. capitatum
Edward Lee
1935-3-10
1296
Contra Costa
e Antioch (hollow in stablized dune); Antioch Sand Dunes
Comment
SBBG92005
Erysimum capitatum var. capitatum
H. L. Mason
1933-4-9
7189
Contra Costa
E of Antioch along the San Joaquin River
12
Comment
SD141829
Erysimum capitatum var. capitatum
H. L. Mason
1933-4-9
7189
Contra Costa
East of Antioch along the San Joaquin River
14
Comment
UC1034729
Erysimum capitatum var. capitatum
G. B. and R. P. Rossbach
1938-6-5
858
Contra Costa
low sand dunes along tidal estuary of river just e San Joaquin River
Comment
UC1034753
Erysimum capitatum var. capitatum
G. B. Rossbach
1955-3-13
570
Contra Costa
dunes along tidal estuary of river just e Antioch; San Joaquin R
Comment
UC534852
Erysimum capitatum var. capitatum
H. L. Mason
1933-4-9
7189
Contra Costa
sand hills along river e Antioch; San Joaquin River
12
Comment
UC673518
Erysimum capitatum var. capitatum
H. L. Mason
1931-4-5
5822
Contra Costa
Antioch sand hills
Comment
UC762935
Erysimum capitatum var. capitatum
R. F. Hoover
1937-5-14
2111
Contra Costa
Antioch sand-dunes
Comment
JEPS12792
Eschscholzia californica
Rimo Bacigalupi with G. T. Robbins
1955-5-4
4982
Contra Costa
1 1/4 mi e Antioch; San Joaquin River front
9
Comment
JEPS79015
Eschscholzia californica
Edward Lee with Annetta Carter
1935-8-17
1632
Contra Costa
Antioch Sand-dunes
Comment
CDA33068
Euthamia occidentalis
D. G. Kelch
2010-10-5
10 .42
Contra Costa
The Delta; Just east of Antioch bridge.
Comment
UC1039519
Galium aparine
Herbert L. Mason
1932-3-20
6840
Contra Costa
Antioch sand hills
Comment
JEPS12791
Gilia capitata subsp. staminea
Rimo Bacigalupi with G. T. Robbins
1955-5-4
4981
Contra Costa
just e Antioch (on sand hills along San Joaquin River front); along San Joaquin River front, e of Antioch
9
Comment
RSA566427
Gilia capitata subsp. staminea
Peter L. Morrell, Donna S. Krause
1993-5-16
239
Contra Costa
Contra Costa County, along sides of raod 100m W of 1701 Wilbur Ave, Antioch, betw Southern Pacific tracks and San Joaquin River (0.5 miles W of Hwy 4/160).
Comment
RSA566428
Gilia capitata subsp. staminea
Peter L. Morrell, Donna S. Krause
1993-5-16
239
Contra Costa
Contra Costa County, along sides of raod 100m W of 1701 Wilbur Ave, Antioch, betw Southern Pacific tracks and San Joaquin River (0.5 miles W of Hwy 4/160).
Comment
RSA566429
Gilia capitata subsp. staminea
Peter L. Morrell, Donna S. Krause
1993-5-16
239
Contra Costa
Contra Costa County, along sides of raod 100m W of 1701 Wilbur Ave, Antioch, betw Southern Pacific tracks and San Joaquin River (0.5 miles W of Hwy 4/160).
Comment
UC1084502
Gilia capitata subsp. staminea
G. Thomas Robbins
1940-5-19
323
Contra Costa
e Antioch (hills bordering San Joaquin River); hills bordering San Joaquin River e of Antioch
Comment
UC908108
Gilia capitata subsp. staminea
Herbert L. Mason
1929-3-31
5159
Contra Costa
Antioch; San Joaquin River
Comment
UC913387
Gilia capitata subsp. staminea
G. Thomas Robbins
1940-5-19
323
Contra Costa
hills e Antioch (bordering San Joaquin River); , e of Antioch
Comment
UC932019
Gilia capitata subsp. staminea
Verne Grant, Alva Grant
1947-4-13
7925
Contra Costa
sand hills by railroad tracks e Antioch; e of Antioch
Comment
UCR86951
Gilia capitata subsp. staminea
Peter L. Morrell, Donna Krause
1993-5-16
239
Contra Costa
Along side of road 100m west of 1701 Wilbur Ave., Antioch, between Southern Pacific tracks and San Joaquin River (0.5 miles west of Calif. Hwy 4/160)
6
Comment
LA203655
Grindelia camporum
Lewis S. Rose;
1930-7-22
sn
Contra Costa
Antioch Bridge
Comment
CAS-BOT-BC305226
Grindelia hirsutula
Lewis S. Rose
1930-7-22
s.n.
Contra Costa
Antioch Bridge
Comment
CDA32858
Grindelia hirsutula
D. G. Kelch
2010-10-5
10 .419
Contra Costa
The Delta; Just east of Antioch bridge.
Comment
JEPS40435
Grindelia hirsutula
William Turner
1965-11-23
Contra Costa
in the sand hills just e Antioch (along the San Joaquin River); , in the Antioch sand hills
Comment
CAS-BOT-BC304583
Gutierrezia californica
Walter Knight
1965-9-7
1172
Contra Costa
Overlooking San Joaquin River. Antioch sand dunes
Comment
JEPS40433
Gutierrezia californica
William Turner
1965-10-13
Contra Costa
in the sand hills Antioch (along the San Joaquin River); San Joaquin River, Antioch
Comment
JEPS79354
Gutierrezia californica
Edward Lee with Annetta Carter
1935-8-17
1622
Contra Costa
Antioch sand-dunes Antioch
Comment
RSA201182
Gutierrezia californica
Peter Rubtzoff
1954-9-14
1750
Contra Costa
Sand dunes along lower San Joaquin River, east of Antioch.
Comment
UC455500
Gutierrezia sarothrae
I. J. Condit
1908-8-20
Contra Costa
Oakley
Comment
UC1594170
Helenium bigelovii
Jerry Powell
1991-6-29
1611
Contra Costa
intertidal zone at river edge Antioch National Wildlife Refuge
Comment
UC552471
Helenium bigelovii
C. L. Swenson
1936-7-9
Contra Costa
river sloughs near Antioch; San Joaquin River
Comment
CDA33069
Heliotropium curassavicum
D. G. Kelch
2010-10-5
10 .422
Contra Costa
The Delta; Just east of Antioch bridge.
Comment
UC1084508
Heliotropium curassavicum
G. Thomas Robbins
1940-5-19
330
Contra Costa
roadside between Antioch and Rio Vista Rio Vista
Comment
CAS-BOT-BC422501
Hesperomecon linearis
A. A. Heller
1908-4-16
8890
Contra Costa
East of Antioch
22
Comment
UC579909
Hesperomecon linearis
Annetta M. Carter
1933-4-23
298
Contra Costa
San Joaquin River, between Antioch Bridge and Antioch
Comment
UC725833
Hesperomecon linearis
A. A. Heller
1908-4-16
8890
Contra Costa
East of Antioch
22
Comment
CAS-BOT-BC318822
Heterotheca grandiflora
Walter Knight
1965-3-1
907
Contra Costa
Antioch Dunes
Comment
JEPS40434
Heterotheca grandiflora
William Turner
1965-11-23
Contra Costa
just e Antioch (in the Antioch sand hills); San Joaquin River
Comment
UC1584840
Heterotheca grandiflora
Jerry Powell
1990-3-9
1574
Contra Costa
Antioch National Wildlife Refuge
Comment
UC897760
Heterotheca grandiflora
A. A. Heller
1938-4-9
15020
Sacramento
Upper Sherman Island
15
Comment Read comments Dec 5 2009
JEPS79318
Heterotheca sessiliflora subsp. echioides
Edward Lee with Annetta Carter
1935-8-17
1624
Contra Costa
Antioch; sand-dunes
Comment
JEPS79319
Heterotheca sessiliflora subsp. echioides
Edward Lee with Annetta Carter
1935-8-17
1624
Contra Costa
Antioch; sand-dunes
Comment
UC625365
Hibiscus lasiocarpos
Ira L. Wiggins
1938-8-15
9006
Contra Costa
at Hwy. #4 Old R.; San Joaquin R., Old R. <branch of San Joaquin R.>
Comment
UCD85761
Hordeum jubatum
V. P. Osterli
1951-7-1
s.n.
Contra Costa
Oakley area.
Comment
UC907509
Isoetes howellii
Herbert L. Mason
June 1950
Sacramento
just above n end of Antioch Bridge (San Joaquin River)
Comment
GH422735
Juglans hindsii
D. E. Stone & B. L. Stone
2004-7-8
4273
Unknown
Brannan Island off State 160, 3 mi south of Rio Vista. Flood Plain of Sacramento River, planted in the park area
Comment
UC566714
Lasthenia gracilis
H. L. Mason
1929-3-31
5154
Contra Costa
along San Joaquin River; , Antioch
Comment
UC71908
Lasthenia gracilis
The Postmaster
1900-3-24
Contra Costa
Oakley Region of Mount Diablo
Comment
CHSC45322
Lathyrus jepsonii var. californicus
Laurie Archambault; Jean Witzman
1988-6-16
Sacramento
NW edge of Sherman Island at confluence of Sacramento and San Joaquin Rivers. Approx. 0.6 mi west of Atioch Bridge near the big bend in Mayberry Slough across from Donlan Island.
Comment
CHSC45324
Lathyrus jepsonii var. jepsonii
Jean Witzman; Laurie Archambault
1988-6-16
Sacramento
NW edge of Sherman Island at confluence of Sacramento and San Joaquin Rivers. Approx. 1.25 mi west of Antioch Bridge at the big bend in Mayberry Slough across from Donlan Island.
Comment
CAS-BOT-BC321083
Layia glandulosa
A. A. Heller
1908-4-16
8896
Contra Costa
E of Antioch
22
Comment
JEPS68959
Layia glandulosa
Edward Lee
1935-3-10
1291
Contra Costa
e Antioch
Comment
UC30623
Layia glandulosa
unknown
1900-4-5
Contra Costa
Oakley
Comment
UC30627
Layia glandulosa
The Postmaster
1900-3-24
Contra Costa
Oakley
Comment
CAS-BOT-BC89713
Lepidium latifolium
W. Knight; I. Knight
1977-5-22
s.n.
Contra Costa
Antioch Dunes.
Comment
RSA39870
Lessingia pectinata var. tenuipes
P. A. Munz
1947-10-8
12202
Contra Costa
Sand dunes east of Antioch
8
Comment
UC1287410
Lessingia pectinata var. tenuipes
Willard Spence
1962-5-15
672
Contra Costa
0.2 mi e of entrance to Antioch Boat Ramp
Comment
UC1137020
Leymus triticoides
August L. Hormay
1932-6-11
Sacramento
Victory Hwy 10 m s Sacramento
Comment
UCD87573
Leymus triticoides
August L. Hormay
1932-6-11
s.n.
Sacramento
Victory Highway. 10 miles S of Sacramento.
Comment
CAS-BOT-BC211109
Lilaeopsis masonii
Walter Knight; Irja Knight
1977-6-18
s.n.
Contra Costa
Antioch Sand Dunes, Little Corral site
Comment
CAS-BOT-BC211110
Lilaeopsis masonii
W. Knight; I. Knight
1977-5-22
s.n.
Contra Costa
Antioch Dunes
Comment
CAS-BOT-BC211111
Lilaeopsis masonii
Craig P. Martz
1988-6-23
275
Sacramento
South bank of Horseshoe Bend on Sherman Island between Emma and Emmaton
0
Comment
UC1023782
Lilaeopsis masonii
Lincoln Constance and Herbert L. Mason
1955-7-14
3610
Sacramento
0.5 mi. e. of n. end of Antioch Bridge (Sherman Isl., margin of San Joaquin R.); San Joaquin R., Sherman Isl.
Comment Read comments Jun 26 2013
UC1101455
Lilaeopsis masonii
Herbert L. Mason
April, 1954
Contra Costa
n. end Antioch Bridge
Comment
UC1111016
Lilaeopsis masonii
Herbert L. Mason
October, 1942
12556
Contra Costa
Antioch, Lower San Joaquin R.
Comment
UC1261904
Lilaeopsis masonii
A. Q. Howard
1977-8-24
39
Contra Costa
along Stamm property w. of Sardis property (Little Corral) Antioch Dunes
Comment
UC1560436
Lilaeopsis masonii
Craig P. Martz
1988-6-23
275
Sacramento
s. bank of Horseshoe Bend on Sherman Isl. (between Emma and Emmaton); Jersey Isl. 7.5' U.S.G.S. Quad.
0
Comment
UCD84916
Lilaeopsis masonii
Chuck Hughes
2010-6-23
189
Sacramento
75 feet northwest of West Sherman Island Road.
0
Comment
UC1178018
Lilium pardalinum
Herbert L. Mason
1955-7-14
14633
Contra Costa
0.5 mi e Antioch Bridge
Comment
UCD84915
Limosella subulata
Chuck Hughes
2010-6-23
188
Sacramento
75 feet northwest of West Sherman Island Road.
0
Comment
UC570875
Lithophragma affine
H. L. Mason
1932-3-20
6843
Contra Costa
Antioch Sand Hills
Comment Read comments Oct 9 2006
UC1300865
Lotus strigosus
Helen K. Sharsmith
1963-4-7
5291
Contra Costa
s of Antioch (near Oakley); San Francisco Bay Region
15
Comment
UC726775
Lupinus
A. A. Heller
1938-4-9
15019
Contra Costa
near the w end Antioch Bridge; near the w end of the Antioch Bridge
Comment
JEPS64909
Lupinus albifrons
W. L. Jepson
1931-4-5
15724
Contra Costa
Oakley part of Antioch sand-dune formation, Oakley
18
Comment
POM10982
Lupinus albifrons var. albifrons
C. F. Baker
1903-4-25
2823
Contra Costa
Antioch.
Comment
UCD84920
Lupinus arboreus
Chuck Hughes
2010-6-23
193
Sacramento
75 feet southeast of West Sherman Island Road.
0
Comment
UC1076228
Lupinus bicolor
Herbert L. Mason
1931-4-5
5821
Contra Costa
Antioch sandhills
Comment
UC1300886
Lupinus bicolor
Helen K. Sharsmith
1963-4-7
5292
Contra Costa
near Oakley (s of Antioch); , near Oakley
15
Comment
UC1073380
Lupinus bicolor subsp. umbellatus
George B. Rossbach
1955-3-13
323
Contra Costa
just e Antioch (along San Joaquin River); , just e of Antioch
Comment
JEPS12790
Lupinus chamissonis
Rimo Bacigalupi with G. T. Robbins
1955-5-4
4980
Contra Costa
just e Antioch (along San Joaquin River front); , e of Antioch
9
Comment Read comments May 25 2007
UC1178022
Lythrum californicum
Herbert L. Mason
1955-7-14
14636
Contra Costa
1/2 mi e of Antioch Bridge
Comment
POM54304
Madia radiata
Katherine Brandegee
1908-4-9
s.n.
Contra Costa
Borders of cultivated fields near Antioch
Comment
SEINET3449596
Melica torreyana
Dean G. Kelch, Andrew G. Murdock
2003-3-21
DGK 3 .055
Contra Costa
Martinez West, Martinez West, Ozol Rock and Scenic Drive
40
Comment
JEPS63480
Mentha canadensis
W. L. Jepson
1923-10-4
10216
Sacramento
Sherman Island
1
Comment
UC1028683
Minuartia californica
Herbert L. Mason
1932-3-20
6849
Contra Costa
Antioch Sand Hills
Comment
UC1076314
Monolepis nuttalliana
Herbert L. Mason
1931-4-5
5891
Contra Costa
Antioch sandhills
Comment
UC131184
Myosurus sessilis
Katharine Brandegee
1909-5-1
Contra Costa
bet. Marsh Creek and Antioch (along the road)
Comment
UC592190
Nemophila menziesii
H. L. Mason
1932-3-20
6837
Contra Costa
Antioch sand hills
Comment
UC592126
Nemophila pedunculata
H. L. Mason
1932-3-20
6841
Contra Costa
Antioch sand hills
Comment
CHSC69645
Oenothera deltoides subsp. cognata
James D. Jokerst
1988-4-26
3003
Contra Costa
Town of Oakly, E and adjacent to Hwy. 4, N of Cypress Rd., between highway and railroad tracks.
Comment
CAS-BOT-BC171587
Oenothera deltoides subsp. howellii
P. A. Munz
1949-6-1
14436
Contra Costa
Sand dunes east of Antioch
Comment
CAS-BOT-BC171588
Oenothera deltoides subsp. howellii
J. H. Thomas
1953-4-25
3004
Contra Costa
Antioch sand hills along San Joaquin River, 2 miles west of Antioch Bridge
Comment
CAS-BOT-BC171589
Oenothera deltoides subsp. howellii
J. H. Thomas
1953-4-25
3004
Contra Costa
Antioch sand hills along San Joaquin River, 2 miles west of Antioch Bridge
Comment
CAS-BOT-BC171590
Oenothera deltoides subsp. howellii
J. H. Thomas
1949-4-19
314
Contra Costa
Antioch sand dunes.
Comment
CAS-BOT-BC171591
Oenothera deltoides subsp. howellii
P. A. Munz
1949-6-1
14436
Contra Costa
Sand dunes east of Antioch.
Comment
CAS-BOT-BC171596
Oenothera deltoides subsp. howellii
Peter Rubtzoff
1954-9-14
1756
Contra Costa
Sand dunes along lower San Joaquin river, east of Antioch
Comment
CAS-BOT-BC171597
Oenothera deltoides subsp. howellii
Walter Knight
1965-3-1
s.n.
Contra Costa
Antioch dunes.
Comment
JEPS12789
Oenothera deltoides subsp. howellii
Rimo Bacigalupi with G. T. Robbins
1955-5-4
4979
Contra Costa
river front just e Antioch; San Joaquin River
9
Comment
JEPS716
Oenothera deltoides subsp. howellii
W. L. Jepson
1945-10-28
27570
Contra Costa
Antioch Sand Hills
Comment
POM310930
Oenothera deltoides subsp. howellii
P. D. Hurd
1952-5-26
s.n.
Contra Costa
1 mile east of Antioch in sand dunes, near western margin of San Joaquan River close to its mouth
30
Comment
POM355600
Oenothera deltoides subsp. howellii
Peter H. Raven
1965-5-9
20181
Contra Costa
Antioch dunes
Comment
RSA119427
Oenothera deltoides subsp. howellii
William M. Klein
1958-6-9
432
Contra Costa
Sandhills N of Antoch, along the San Joaquin River Channel.
2
Comment
RSA144914
Oenothera deltoides subsp. howellii
Peter Rubtzoff
1954-9-14
1756
Contra Costa
Sand dunes along lower San Joaquin River, east of Antioch.
Comment
RSA34666
Oenothera deltoides subsp. howellii
P. A. Munz
1947-10-8
12201
Contra Costa
Sand dunes east of Antioch
8
Comment
RSA41319
Oenothera deltoides subsp. howellii
Robert F. Hoover
1937-5-14
2112
Contra Costa
Antioch sand-dunes
Comment
UC1073376
Oenothera deltoides subsp. howellii
George B. Rossbach
1955-5-22
369
Contra Costa
dunes near bank of San Joaquin River (e edge of Antioch); Antioch
Comment
UC1084504
Oenothera deltoides subsp. howellii
G. Thomas Robbins
1940-5-19
325
Contra Costa
cliffs above river e Antioch; San Joaquin River
Comment
UC1241161
Oenothera deltoides subsp. howellii
Wm. Klein
1958-6-9
442
Contra Costa
sandhills just n Antioch (along the channel)
Comment
UC35412
Oenothera deltoides subsp. howellii
Chesnut and Drew
1889-4-18
Contra Costa
Sand Hills Antioch
Comment
UC635385
Oenothera deltoides subsp. howellii
H. L. Mason
1929-3-31
5163
Contra Costa
Antioch San Joaquin River (sand dike along river)
Comment
UC763071
Oenothera deltoides subsp. howellii
R. F. Hoover
1937-5-14
2112
Contra Costa
Antioch sand-dunes
Comment
UC914280
Oenothera deltoides subsp. howellii
Verne Grant and Alva Grant
1947-4-13
7926
Contra Costa
sand hills by river e Antioch
Comment
UC971924
Oenothera deltoides subsp. howellii
P. D. Hurd
1952-5-26
Contra Costa
one mi e Antioch (in sand dunes close to w margin of river near its mouth); San Joaquin River
30
Comment
GH73052
Oenothera deltoides var. howellii
A. Eastwood & J. T. Howell
1936-4-19
2147
Unknown
Antioch, Sand dunes
Comment
JEPS43975
Oenothera elata subsp. hirsutissima
W. L. Jepson
1924-10-17
10660
Sacramento
Sherman Island
Comment
JEPS43976
Oenothera elata subsp. hirsutissima
W. L. Jepson
1923-10-4
10225
Sacramento
Sherman Isl.
0
Comment
UC1584816
Oenothera elata subsp. hookeri
Jerry Powell
1990-8-29
1590
Contra Costa
Antioch National Wildlife Refuge
Comment
UCD40945
Oenothera laciniata
Ron Unger
2004-3-30
s.n.
Contra Costa
Emerson parcel near Marsh Creek, just south of Big Break (flooded island) and Jersey Island area. North of town of Oakley and east of town of Antioch and 1 mile southwest of Dutch Slough.
Comment
CDA36713
Olea europaea
D. G. Kelch
2010-10-5
10 .417
Contra Costa
The Delta; Just east of Antioch bridge.
Comment
UCD88427
Orcuttia viscida
R. D. Stone; J. M. Erzinger
1986-6-16
725
Sacramento
about 10 miles S of Folsom, E side of Grant Line Road, 0.6 mile N of its intersection with Kiefer Boulevard.
68
Comment Read comments May 28 2020
SEINET219431
Oryza sativa
Unknown
1923-1
Sacramento
Sacramento Valley
Comment
UC573135
Pectocarya penicillata
H. L. Mason
1932-3-20
6845
Contra Costa
Antioch sand hills
Comment
JEPS17394
Penstemon centranthifolius
Rimo Bacigalupi with G. T. Robbins
1955-5-4
4984
Contra Costa
about 1 1/4 mi e Antioch (near the San Joaquin River); near San Joaquin River, e of Antioch
9
Comment
JEPS4477
Penstemon centranthifolius
G. Thomas Robbins
1940-5-19
324
Contra Costa
e Antioch; bordering San Joaquin River e of Antioch
Comment
NY583832
Penstemon centranthifolius
L. S. Rose
1936-4-24
36158
Contra Costa
3 miles east of Antioch
15.2
Comment
NY583859
Penstemon centranthifolius
A. A. Heller
1908-4-16
8895
Contra Costa
East of Antioch
22.9
Comment
SBBG26831
Penstemon centranthifolius
L. S. Rose
1936-4-24
36158
Contra Costa
3 mi E of Antioch
15
Comment
UC566668
Penstemon centranthifolius
H. L. Mason
1929-3-31
5156
Contra Costa
sand dike along San Joaquin River (Antioch); sand dike along San Joaquin River, Antioch
Comment
UCR136718
Penstemon centranthifolius
L. S. Rose
1936-4-24
36158
Contra Costa
3 mi east of Antioch
15
Comment
UCD84913
Persicaria amphibia
Chuck Hughes
2010-6-23
186
Sacramento
75 feet northwest of West Sherman Island Road.
0
Comment
UCD84914
Persicaria punctata
Chuck Hughes
2010-6-23
187
Sacramento
75 feet northwest of West Sherman Island Road.
0
Comment
JEPS2399
Phacelia distans
R. F. Hoover
1937-5-14
2116
Contra Costa
Antioch sand-dunes
Comment
JEPS73329
Phacelia distans
Edward Lee
1935-3-10
1297 A
Contra Costa
e Antioch; Antioch Sand Dunes
Comment
UC1084500
Phacelia distans
G. Thomas Robbins
1940-5-19
321
Contra Costa
e Antioch (sand hills bordering river); San Joaquin River
Comment
UC762051
Phacelia distans
R. F. Hoover
1937-5-14
2116
Contra Costa
Antioch sand-dunes
Comment
UC24356
Phacelia douglasii
The Postmaster
1900-3-24
Contra Costa
Oakley
Comment
UC672340
Phacelia douglasii
Herbert L. Mason
1929-3-31
5161
Contra Costa
dunes along river near Antioch; San Joaquin River
Comment
UC672342
Phacelia douglasii
H. L. Mason
1932-3-20
6838
Contra Costa
Antioch Sand Hills
Comment
UCD89827
Phragmites australis
Thomas W. Davies
1964-9-1
s.n.
Sacramento
Sherman Island.
Comment
UCD89830
Phragmites australis
August L. Hormay
1933-9-4
s.n.
Sacramento
Sherman Island. North foot of Antioch Bridge.
Comment
CDA2311
Phyllostachys aurea
Barbara Ertter
2001-5-26
17652
Contra Costa
Stamm Unit of Antioch Dunes National Wildlife Refuge east of Antioch.
0
Comment
UC1789168
Phyllostachys aurea
Barbara Ertter
2001-5-26
17652
Contra Costa
Stamm Unit of Antioch Dunes National Wildlife Refuge east of Antioch, single well-established clump at base of river bank.
Comment
UC573071
Plagiobothrys tenellus
H. L. Mason
1932-3-20
6847
Contra Costa
Antioch sand hills
Comment
UCD90801
Poa secunda subsp. secunda
Beecher Crampton
1957-5-2
3971
Sacramento
Whiterock.
Comment
UC1594171
Polygonum punctatum
Jerry Powell
1991-6-29
1610
Contra Costa
Antioch National Wildlife Refuge; intertidal zone
Comment
JEPS95765
Polygonum ramosissimum
Dianne Lake
1999-10-5
Contra Costa
NW end of wetland at NE corner of Plymouth and Hillcrest, 1 block N of E 18th St. Antioch
3
Comment
CAS-BOT-BC158576
Prunus
Walter Knight
1965-3-1
s.n.
Contra Costa
Antioch Dunes
Comment
CDA33067
Prunus dulcis
D. G. Kelch
2010-10-5
10 .415
Contra Costa
The Delta; Just east of Antioch bridge.
Comment
CAS-BOT-BC45657
Quercus agrifolia
John Thomas Howell
1926-12-27
2274
Contra Costa
Near Oakley
Comment
CDA32855
Quercus agrifolia
D. G. Kelch
2010-10-5
10 .416
Contra Costa
The Delta; Just east of Antioch bridge.
Comment
UCD45098
Quercus agrifolia
John M. Burns
1959-3-4
s.n.
Contra Costa
Sand dunes along south side of San Joaquin River, just east of Antioch, Contra Costa County, California.
Comment
UCD83548
Quercus agrifolia
Alison McNally
2009-5-9
s. n.
Contra Costa
Antioch, southern shore of San Joaquin River, Antioch Dunes National Wildlife Refuge.
Comment
CAS-BOT-BC74269
Raphanus sativus
Walter Knight
1965-3-1
908
Contra Costa
Antioch Dunes.
Comment
UC1584666
Rosa californica
Jerry Powell
1990-8-29
1593
Contra Costa
on riverine floodplain Antioch National Wildlife Reguge
Comment
CAS-BOT-BC129553
Salix lasiolepis var. lasiolepis
Walter Knight
1965-3-1
899
Contra Costa
Antioch dunes, by water's edge - north side of dunes
Comment
CAS-BOT-BC129554
Salix lasiolepis var. lasiolepis
Walter Knight
1965-3-1
s.n.
Contra Costa
Antioch dunes, by water's edge - Carquinez Straights
Comment
JEPS623
Salsola tragus
W. L. Jepson
1945-11-11
27571
Contra Costa
Antioch Sandhills
Comment
JEPS79009
Salsola tragus
Edward Lee with Annetta Carter
1935-8-17
1618
Contra Costa
just e. Antioch
Comment
JEPS79010
Salsola tragus
Edward Lee with Annetta Carter
1935-8-17
1619
Contra Costa
just e. Antioch
Comment
JEPS79398
Salsola tragus
Edward Lee with Annetta Carter
1935-8-17
1635
Contra Costa
Antioch sand dunes
Comment
CAS-BOT-BC238635
Sambucus nigra subsp. caerulea
Walter Knight
1965-3-1
894
Contra Costa
Antioch dunes
Comment
UC1178021
Samolus parviflorus
Herbert L. Mason
1955-7-14
14634
Contra Costa
1/2 mi e of Antioch Bridge
Comment
UCD84919
Samolus parviflorus
Chuck Hughes
2010-6-23
192
Sacramento
75 feet northwest of West Sherman Island Road.
0
Comment
CAS-BOT-BC111463
Schoenoplectus californicus
Walter Knight; Irja Knight
1977-5-22
s.n.
Contra Costa
Growing at site of little corral. Antioch Dunes.
Comment
CAS-BOT-BC111464
Schoenoplectus californicus
Walter Knight; Irja Knight
1977-6-18
s.n.
Contra Costa
On shore of San Joaquin River, Antioch sand dunes, Little Corral site.
Comment
SD134082
Schoenoplectus californicus
Walter Knight, Irja Knight
1977-6-18
Contra Costa
On shore of San Joaquin River, Antioch sand dunes, Little Corral site. Growing in water at high tide.
Comment
JEPS19398
Senecio flaccidus var. douglasii
G. Thomas Robbins
1940-5-19
326
Contra Costa
e of Antioch (hills bordering San Joaquin River); San Joaquin River
Comment
UC1584828
Senecio hydrophilus
Jerry Powell
1990-8-29
1588
Contra Costa
Antioch National Wildlife Refuge
Comment
UC1093588
Sium suave
L. Constance, C. R. Bell and Hsuan Keng
1957-8-21
3658
Sacramento
0.5 mi e of Antioch Bridge (Sherman Island, margin of San Joaquin River); Sherman Island, San Joaquin River
Comment
UC1093589
Sium suave
L. Constance, C. R. Bell and Hsuan Keng
1957-8-21
3658
Sacramento
0.5 mi e of Antioch Bridge (Sherman Island, margin of San Joaquin River); Sherman Island, San Joaquin River
Comment
UC456217
Solanum umbelliferum
I. J. Condit
1908-8-20
Contra Costa
Oakley
Comment
SBBG42912
Stephanomeria exigua subsp. coronaria
L. D. Gottlieb
1969-11-2
6959
Contra Costa
E of Antioch, W of Kaiser Gypsum Plant at Minaker and Wilbur Rds
Comment Read comments Feb 12 2013
UC1422530
Symphyotrichum lentum
Alice Q. Howard and W. R. Powell
1977-6-1
38
Contra Costa
Antioch Dunes, within PG&E-owned strip under eastern power line
Comment
UC1544787
Symphyotrichum lentum
Almut G. Jones
1986-8-26
7277
Sacramento
just n, near Contra Costa/Sacramento County line Antioch Toll Bridge
Comment
UC1560437
Symphyotrichum lentum
Craig Martz
1988-7-6
278
Sacramento
Horseshoe Bend, between Emma and Emmaton Sherman Island
0
Comment
UC1594169
Symphyotrichum lentum
Jerry Powell
1991-8-15
1613
Contra Costa
Antioch National Wildlife Refuge
Comment
UCD136617
Symphyotrichum lentum
Craig Martz
1988-7-6
278
Sacramento
Sherman Island. Along south bank of Horseshoe Bend between Emma and Emmaton.
0
Comment
UCD84917
Symphyotrichum lentum
Chuck Hughes
2010-6-23
190
Sacramento
75 feet northwest of West Sherman Island Road.
0
Comment
CAS-BOT-BC88259
Thysanocarpus curvipes
Robert F. Hoover
1935-3-10
310
Contra Costa
Antioch sand dunes.
Comment
JEPS68963
Thysanocarpus curvipes
Edward Lee
1935-3-10
1295
Contra Costa
e. Antioch (Antioch Sand Dunes); Antioch Sand Dunes
Comment
UCR143524
Thysanocarpus curvipes
L. S. Rose
1933-4-17
33096
Contra Costa
Antioch
30
Comment
UC1776772
Tribulus terrestris
T. C. Fuller
1961-9-13
6999
Contra Costa
Almond orchard, S of hwy 4, 0.1 mi W of Antioch Bridge Rd., 2 mi W of Oakley.
Comment Read comments Sep 1 2011
UC555448
Trifolium gracilentum
H. L. Mason
1929-3-31
5150
Contra Costa
along San Joaquin River; Antioch
Comment
UC555459
Trifolium gracilentum
H. L. Mason
1932-3-20
6844
Contra Costa
Antioch sand hills
Comment
JEPS68961
Tropidocarpum gracile
Edward Lee
1935-3-10
1239
Contra Costa
e. Antioch (Antioch Sand Dunes); Antioch Sand Dunes
Comment
UC673302
Tropidocarpum gracile
H. L. Mason
1932-3-20
6842
Contra Costa
Antioch sand hills
Comment
UC673305
Tropidocarpum gracile
H. L. Mason
1929-3-31
5152
Contra Costa
sand dike along river at Antioch; San Joaquin River
Comment
JEPS35667
Uropappus lindleyi
W. L. Jepson
1931-4-5
15715
Contra Costa
Oakley
18
Comment
JEPS39057
Verbena hastata
W. L. Jepson
1923-10-4
10215
Sacramento
lower San Joaquin, Sherman Island Sherman Island; San Joaquin, Sherman Island
3
Comment
UC454110
Verbena hastata
I. J. Condit
1908-8-20
Contra Costa
Oakley
Comment
JEPS68962
Vulpia myuros var. hirsuta
Edward Lee
1935-3-10
1294
Contra Costa
e of Antioch (Antioch Sand Dunes); Antioch Sand Dunes
Comment
JEPS37541
Xanthium strumarium
W. L. Jepson
1923-10-4
10213
Contra Costa
Sherman Island ferry Antioch Shore, Sherman Island ferry
Comment