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Specimen ID
Determination *
Collector
Collection Date
Collection Number
County
Locality
Elevation in meters
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SEINET4172014
Acer macrophyllum
Robert A. Norris, John L. Inase
1981-1
4146
Contra Costa
Abrigo Valley Trail, NW part of Briones Regional Park (ca. 3 mi. NNW Lafayette)
274
Comment
UC1199010
Acer negundo
Joseph P. Tracy
1934-4-30
13187
Contra Costa
Lafayette
152
Comment
UC18099
Acer negundo
J. Burtt Davy
1895-4-13
1012
Contra Costa
Lafayette
Comment
CAS-BOT-BC65622
Adiantum jordanii
D. E. Breedlove
1970-4-18
17432
Contra Costa
at the north edge of Lafayette above Laurel Drive
243
Comment
SEINET3449243
Adiantum jordanii
Dean G. Kelch, Andrew G. Murdock
2004-2-12
AGM 206
Contra Costa
Franklin Canyon, Franklin Canyon, McHarry Ranch Road
126
Comment Read comments Sep 26 2014
SBBG115406
Agropogon littoralis
B. Crampton
1959-9-3
5454
Contra Costa
ca. 2 mi N of Orinda, Bear Crk, East Bay Municipal Utilities District Project
Comment
JEPS100030
Agrostis exarata
A. Langston
2003-6-6
AL 35
Contra Costa
Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site
Comment
JEPS100031
Agrostis exarata
S. O'Neil
2003-6-24
SEO 41
Contra Costa
Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site
Comment
UC1618271
Alisma plantago-aquatica
Barbara Ertter
1990-9-10
9638
Contra Costa
s of Martinez (Briones Regional Park, Briones Hills, at margin of main Sindicich Lagoon); Briones Regional Park, Briones Hills
365
Comment
UCR12098
Amsinckia
Coleta A. Lawler
1964-5-8
58
Contra Costa
San Francisco Bay Region, Hampton Road, 3 .7 mi south of junction with Alhambra Valley Road; c. 10 miles northwest of Lafayette
46
Comment
CAS-BOT-BC222464
Amsinckia lunaris
Joseph P. Tracy
1934-4-30
13196
Contra Costa
Near Lafayette
152
Comment
RSA125789
Amsinckia lunaris
Francia Chisaki, Peter Kamb
1952-5-4
2275
Contra Costa
Bear Creek Road, 1.5 miles east of Orinda-Richmond road (leaving this road ca. 1 mile north of Orinda)
Comment
UC525560
Amsinckia lunaris
Joseph P. Tracy
1934-4-30
13196
Contra Costa
near Lafayette; Coast Ranges
152
Comment
CDA1106
Angelica californica
D. G. Kelch, A. G. Murdock
2003-8-13
3 .127
Contra Costa
Carquinez Strait; Vaca Canyon.
Comment
CDA1107
Angelica californica
D. G. Kelch, A. G. Murdock
2003-8-13
3 .127
Contra Costa
Carquinez Strait; Vaca Canyon.
Comment
JEPS111621
Angelica californica
D. G. Kelch
2004-7-9
04 .308B
Contra Costa
Vaca Canyon Vaca Canyon
165
Comment
JEPS111622
Angelica californica
D. G. Kelch
2004-7-9
04 .308B
Contra Costa
Vaca Canyon Vaca Canyon
165
Comment
JEPS100137
Anthriscus caucalis
G. Smick
2003-4-29
GAS 148
Contra Costa
Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site
Comment
JEPS83303
Antirrhinum vexillocalyculatum subsp. vexillocalyculatum
David M. Thompson
1984-8-12
405
Contra Costa
0.25 mi n water of Briones Reservoir (at the end of Hampton Road); Briones Valley Quad.
198
Comment
CDA39735
Apocynum cannabinum
D. G. Kelch
2004-7-9
4 .306
Contra Costa
Carquinez Strait; Alhambra Creek, Martinez, near Muir gravesite, Arroyo del Hambre.
Comment
JEPS111632
Apocynum cannabinum
D. G. Kelch
2004-7-9
04 .306
Contra Costa
Arroyo del Hambre Alhambra Creek, Martinez, Near Muir gravesite
60
Comment
JEPS112056
Aquilegia formosa
A. G. Murdock
2004-4-30
254
Contra Costa
Vaca Canyon On steep south slope along road
165
Comment
UC1120145
Arctostaphylos glandulosa subsp. glandulosa
C. M. Belshaw
1936-2-16
1591
Contra Costa
2 1/2 mi nw Lafayette; Concord Quadrangle, Lafayette Ridge
Comment
SD107640
Arctostaphylos tomentosa subsp. crustacea
Stephen W. Edwards
1981-1-5
1001
Contra Costa
Biones Regional Park, from ridge facing Russell Tree Farm
Comment
UC1120116
Arctostaphylos tomentosa subsp. crustacea
C. M. Belshaw
1936-2-16
1590
Contra Costa
2 1/2 mi nw Lafayette; Concord Quadrangle, Lafayette Ridge
Comment
UC1120138
Arctostaphylos tomentosa subsp. crustacea
C. M. Belshaw
1936-2-16
1585
Contra Costa
2 1/2 mi nw Lafayette; Concord Quadrangle, Lafayette Ridge
Comment
UC1120139
Arctostaphylos tomentosa subsp. crustacea
C. M. Belshaw
1936-2-16
1587
Contra Costa
2 1/2 mi nw Lafayette; Concord Quadrangle, Lafayette Ridge
Comment
UC1120143
Arctostaphylos tomentosa subsp. crustacea
C. M. Belshaw
1936-2-16
1588
Contra Costa
2 1/2 mi nw Lafayette; Concord Quadrangle, Lafayette Ridge
Comment
UC1120146
Arctostaphylos tomentosa subsp. crustacea
C. M. Belshaw
1936-2-16
1589
Contra Costa
2 1/2 mi nw Lafayette; Concord Quadrangle, Lafayette Ridge
Comment
UC2046014
Arctostaphylos viscida subsp. mariposa
Stephen W. Edwards
July, 2012
s.n.
Contra Costa
Pleasant Hill, along Taylor Blvd.
Comment
CAS-BOT-BC400403
Aristolochia californica
D. E. Breedlove
1970-4-18
17444
Contra Costa
At the north edge of Lafayette above Laurel Drive
243
Comment
JEPS32461
Aristolochia californica
Mary Ann Linsford
1931-3-15
Contra Costa
San Pablo Creek near Orinda
Comment
SJSU6159
Aristolochia californica
C. O. Dudley
1966-5-1
106
Contra Costa
Reliez Valley, Briones Hills N of Lafayette
152
Comment
JEPS99962
Artemisia douglasiana
A. Langston
2003-7-28
AL 74
Contra Costa
Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site
Comment
JEPS100125
Asclepias fascicularis
A. Langston
2003-7-24
AL 69
Contra Costa
Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site
Comment
JEPS100027
Avena fatua
A. Langston
2003-6-6
AL 37
Contra Costa
Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site
Comment
RSA129571
Avena fatua
R. W. Lundh
1933-3-25
218
Contra Costa
1 mi. W. & 1/2 N. of Lafayette Acalanes; Concord
213
Comment
UCSB12521
Avena fatua
Grah, Nancy
1962-4-14
Contra Costa
0.2 mi N of Miner Rd on Sleepy Hollow Lane; Orinda
182
Comment
JEPS112257
Azolla filiculoides
Andrew G. Murdock
2004-4-30
311
Contra Costa
In Pinole Creek near Pig Sale.
Comment
JEPS111597
Bowlesia incana
A. G. Murdock
2004-4-30
242
Contra Costa
Vaca Canyon
165
Comment
UC1618319
Brodiaea elegans subsp. elegans
Barbara Ertter
1990-5-19
8995
Contra Costa
n Lafayette (edge of ridge road); Briones Regional Park, Lafayette Ridge
365
Comment
CHSC75136
Bromus carinatus
Roger Thom
1987-4-21
3
Contra Costa
3300 block Johnson Rd. Lafayette.
152
Comment
UC697129
Bromus carinatus var. carinatus
Mary L. Bowerman
1935-5-1
2947
Contra Costa
West Road 6.7 mi from entrance, Mount Diablo West Road; Mount Diablo, West Road
640
Comment
CAS-BOT-BC156061
Bromus diandrus
D. E. Breedlove
1970-4-18
17439
Contra Costa
At the north edge fo Lafayette above Laurel Drive.
243
Comment
JEPS100025
Bromus diandrus
S. O'Neil
2003-5-7
SEO 29
Contra Costa
Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site
Comment
UC677560
Bromus hordeaceus
P. F. Knowles
1941-1
8710
Contra Costa
Briones Hills
Comment
UC677561
Bromus madritensis subsp. madritensis
P. F. Knowles
1942-1
B 142
Contra Costa
Briones Hills
Comment
CAS-BOT-BC438367
Calandrinia ciliata
V. Rattan
1887-5-22
s.n.
Contra Costa
Alhambra Valley
Comment
UCR12027
Calandrinia ciliata
Coleta A. Lawler
1964-5-8
56
Contra Costa
San Francisco Bay Region, Hampton Road, 3 .7 mi south of junction with Alhambra Valley Road; c. 10 miles northwest of Lafayette
46
Comment
CHSC24837
Calandrinia ciliata var. menziesii
M. A. Callahan
1976-4-14
14
Contra Costa
Small pop. 5 m. from roadside w of house at 1976 Mohawk Dr. Pleasant Hill.
115
Comment
UC1618318
Calochortus luteus
Barbara Ertter with Travis Columbus
1990-6-10
9098
Contra Costa
w of Pleasant Hill (trail heading down ridge on n side of Briones Peak, at jct with Spengler Trail, ne corner of Briones Regional Park, Briones Hills); Briones Hills, Briones Regional Park
274
Comment
CAS-BOT-BC132493
Calochortus pulchellus
D. E. Breedlove
1970-4-18
17425
Contra Costa
At the north edge of Lafayette above Laurel Drive
243
Comment
RSA215950
Calochortus pulchellus
D. E. Breedlove
1970-4-18
17425
Contra Costa
At the north edge of Lafayette above Laurel Drive
244
Comment
CDA39897
Calystegia purpurata subsp. purpurata
A. G. Murdock
2003-6-2
79
Contra Costa
Carquinez Strait Region; Franklin Canyon - McHarry Ranch Rd.
Comment
JEPS111812
Calystegia purpurata subsp. purpurata
A. G. Murdock
2003-6-2
79
Contra Costa
Franklin Canyon - McHarry Ranch Rd. West side of road near fire road gate
126
Comment
UC1197881
Calystegia subacaulis subsp. subacaulis
Joseph P. Tracy
1934-4-30
13192
Contra Costa
Near Lafayette.
152
Comment
JEPS111869
Cardamine californica
D. G. Kelch
2005-2-28
05 .9
Contra Costa
Vaca Canyon Vaca Canyon Alhambra Valley Road Bay Forest road cut with Arbutus
165
Comment
JEPS53386
Cardamine californica
J. Burtt Davy
1895-4-13
1006
Contra Costa
near Lafayette; near Lafayette
Comment
UC1126900
Cardamine californica
R. W. Lundh
1933-3-20
215
Contra Costa
2 mi nw Walnut Creek, Canada del Hambro; Concord Quad.
182
Comment
JEPS100083
Cardamine oligosperma
G. Smick
2003-5-30
GAS 200
Contra Costa
Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site
Comment
CDA33124
Carex barbarae
D. G. Kelch, A. G. Murdock
2004-7-9
04 .305-B
Contra Costa
Carquinez Strait; Alhambra Creek, Martinez, near Muir gravesite, Arroyo del Hambre.
Comment
JEPS111620
Carex obnupta
D. G. Kelch
2004-7-9
04 .305
Contra Costa
Arroyo del Hambre Alhambra Creek, Martinez, Near Muir gravesite
60
Comment
JEPS111897
Carex obnupta
D. G. Kelch
2004-7-9
04 .305
Contra Costa
Arroyo del Hambre Alhambra Creek, Martinez, Near Muir gravesite
60
Comment
JEPS14827
Castilleja affinis subsp. affinis
Rimo Bacigalupi
1956-7-17
5734
Contra Costa
2.3 mi n Happy Valley road junction with State Highway 24 (just n of summit of Upper Happy Valley road, on road n-ward from Happy Valley to the head of Briones Valley)
304
Comment
CHSC24847
Castilleja exserta
M. A. Callahan
1976-4-11
10
Contra Costa
Top of ridfe 140 m. ene of house at 1976 Mohawk Dr. Pleasant Hill.
152
Comment
UC27243
Castilleja exserta subsp. exserta
H. P. Chandler
1900-3-24
Contra Costa
Briones Hills; Mount Diablo Region
Comment
CHSC24923
Castilleja subinclusa subsp. franciscana
M. A> Callahan
1976-4-11
6
Contra Costa
120 m ne of house at 1976 Mohawk Dr. Pleasant Hill on w slope.
132
Comment
JEPS121057
Castilleja wightii
D. G. Kelch
1999-6-23
99001 B
Contra Costa
Vaca Canyon along Alhambra Valley Road about 1.5 mile East of Pig Sale
Comment
JEPS99959
Centaurea calcitrapa
A. Langston
2003-7-28
AL 76
Contra Costa
Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site
Comment
CHSC75053
Centaurea solstitialis
Roger Thom
1987-5-28
25
Contra Costa
3300 block of Johnson Rd. 0.3 mi from intersection with Reliez Valley Rd. Lafayette.
137
Comment
CAS-BOT-BC279185
Centromadia pungens subsp. pungens
David D. Keck
1933-11-2
2613
Contra Costa
3 mi. S. of Martinez on road to Pacheco
Comment
CAS-BOT-BC279204
Centromadia pungens subsp. pungens
David D. Keck
1933-11-2
2613
Contra Costa
3 mi. S. of Martinez on road to Pacheco
Comment
UC523551
Centromadia pungens subsp. pungens
David D. Keck
1933-11-2
2613
Contra Costa
3 mi s Martinez (on road to Pacheco)
Comment
JEPS103081
Cestrum parqui
Marck Menke
1998-12-25
30
Contra Costa
S of Martinez (along upper Alhambra Creek beside Alhambra Creek Trail); Briones Regional Park
Comment
JEPS111800
Chenopodium murale
D. G. Kelch
2004-7-9
04 .308
Contra Costa
Arroyo del Hambre Alhambra Creek, Martinez, Near Muir gravesite
60
Comment
JEPS99955
Cirsium vulgare
A. Langston
2003-7-28
AL 75
Contra Costa
Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site
Comment
CDA9430
Clarkia biloba
D. G. Kelch
1999-6-23
99 .001-D
Contra Costa
Carquinez Strait; Vaca Canyon along Alhambra Valley Road about 1.5 mile East of Pig Sale.
Comment
UC1197000
Clarkia biloba
Joseph P. Tracy
1935-7-6
14038
Contra Costa
4 mi sw Martinez; Vaca Canyon
152
Comment
JEPS111566
Clarkia biloba subsp. biloba
D. G. Kelch
2003-8-13
03 .124
Contra Costa
Vaca Canyon Locally common herb to 20 cm on n facing road cuts
165
Comment
JEPS111555
Clarkia concinna subsp. concinna
A. G. Murdock
2003-6-2
80
Contra Costa
Franklin Canyon - McHarry Ranch Rd. East side of road on bank above creek across from fire road gate.
137
Comment
CDA38067
Clarkia unguiculata
A. G. Murdock
2003-6-2
81
Contra Costa
Carquinez Strait Region; Franklin Canyon - McHarry Ranch Rd.
Comment
CHSC27728
Clarkia unguiculata
Coleta Lawler
1978-6-23
296
Contra Costa
West of Concord on Alhambra Valley Road, 0.7 miles east of Bear Creek Road; roadcut.
Comment
CHSC75102
Clarkia unguiculata
Roger Thom
1987-5-18
12
Contra Costa
1.0 mi from intersection with Pleasant Hill Rd. on Reilez Valley Rd. Lafayette (1600 block). Road cut.
182
Comment
JEPS111556
Clarkia unguiculata
A. G. Murdock
2003-6-2
81
Contra Costa
Franklin Canyon - McHarry Ranch Rd
126
Comment
UC1586096
Clarkia unguiculata
Barbara Ertter with Travis Columbus
1990-6-10
9105
Contra Costa
w Pleasant Hill (hillside above junction of Spengler and Blue Oak trail, ne corner of park); Briones Regional Park, Briones Hills
274
Comment
UC7853
Claytonia exigua subsp. exigua
H. P. Chandler
1900-3-24
588
Contra Costa
Briones Hills; Mt. Diablo Region
Comment
UC1300963
Claytonia perfoliata subsp. perfoliata
Helen K. Sharsmith
1962-3-25
4910
Contra Costa
hills between Happy Valley and Alhambra Valley; San Francisco Bay Region
304
Comment
CAS-BOT-BC91355
Clematis lasiantha
V. Rattan
1887-5-22
s.n.
Contra Costa
Alhambra Valley.
Comment
UC2031506
Clematis lasiantha
Barbara Ertter with Travis Columbus
1990-6-10
9104
Contra Costa
NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill ridge ENE of Briones Peak
Comment
CDA21753
Conyza canadensis
D. G. Kelch, A. G. Murdock
2005-7-14
5 .463
Contra Costa
Carquinez Strait Region; Arroyo del Hambre; Franklin Creek near Glen Frazier.
Comment
CAS-BOT-BC209749
Cornus glabrata
V. Rattan
1887-5-22
s.n.
Contra Costa
Alhambra
Comment
CAS-BOT-BC209750
Cornus glabrata
V. Rattan
1887-5-22
s.n.
Contra Costa
Alhambra
Comment
CDA39608
Corylus cornuta var. californica
D. G. Kelch
2003-8-13
3 .126
Contra Costa
Carquinez Strait; Vaca Canyon.
Comment
JEPS111824
Corylus cornuta var. californica
A. G. Murdock
2004-4-30
261
Contra Costa
Vaca Canyon
165
Comment
CDA19637
Crepis bursifolia
Doreen Smith, Wilma Follette
2003-10-25
s.n.
Contra Costa
San Francisco Bay Area; Briones Park.
0
Comment
JEPS100021
Cynodon dactylon
S. O'Neil
2003-6-24
SEO 40
Contra Costa
Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site
Comment
JEPS111843
Cynoglossum grande
D. G. Kelch
2005-2-28
05 .10
Contra Costa
Vaca Canyon Alhambra Valley Road
165
Comment
UCSB24742
Cynoglossum grande
Rieser, R.
1966-4-2
Contra Costa
100 ft. north of Eagles Point, Sleepy Hollow, Orinda
396
Comment
JEPS100020
Cynosurus echinatus
S. O'Neil
2003-5-30
SEO 36
Contra Costa
Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site
Comment
JEPS112062
Delphinium nudicaule
A. G. Murdock
2004-4-30
243
Contra Costa
Vaca Canyon
165
Comment
CHSC24924
Delphinium patens subsp. patens
M. A. Callahan
1976-4-12
5
Contra Costa
On ne slope 90 m s of roadhead on Mohawk Dr. Pleasant Hill.
Comment
UC9152
Delphinium patens subsp. patens
J. Burtt Davy
1895-4-13
1008
Contra Costa
near Lafayette
Comment
UC1300933
Dichelostemma capitatum
Helen K. Sharsmith
1962-3-25
4909
Contra Costa
hills between Happy Valley and Alhambra Valley; San Francisco Bay Region
304
Comment
CAS-BOT-BC150328
Diplacus aurantiacus
D. E. Breedlove
1970-4-18
17427
Contra Costa
At the north edge of Lafayette above Laurel Drive
243
Comment
CDA39313
Disporum hookeri
A. G. Murdock
2003-6-2
83
Contra Costa
Carquinez Strait Region; Franklin Canyon - McHarry Ranch Rd.
Comment
JEPS112508
Disporum hookeri
A. G. Murdock
2003-6-2
83
Contra Costa
Franklin Canyon - McHarry Ranch Rd.
137
Comment
POM319552
Echinochloa crus-galli
Patricia Wilder
1961-8-29
1098 a
Contra Costa
Walnut Creek, near Calif. Hwy 24 west side of city; Coast Mt. Range
42
Comment
SJSU10392
Echinochloa crus-galli
J. E. Cox
1976-11-26
Contra Costa
right of way of Dolores E Bay Municipal Utilities District, Lafayette
Comment
UCD37369
Echinochloa crus-pavonis
Beecher Crampton
1959-9-3
5451
Contra Costa
Contra Costa County, 2 miles north of city of Orinda, Bear Creek, East Bay Municipal Utilities District Project.
Comment
UCD60948
Echinochloa crus-pavonis
Beecher Crampton
1959-9-3
5451
Contra Costa
2 miles north of Orinda, Bear Creek, East Bay Munic. Distr. Project.
Comment
UC2042778
Epilobium brachycarpum
Barbara Ertter
1990-9-10
9637
Contra Costa
Briones Regional Park, Briones Hills S of Martinez, eroded N-facing draw between Sindicich and Maricich lagoons.
Comment
UC1606296
Epilobium campestre
Barbara Ertter
1990-9-10
9635
Contra Costa
s Martinez (junction of Alhambra Creek Trail and Old Briones Rd.); Briones Hills, Briones Regional Park, Maricich Lagoon
335
Comment
UC1784916
Epilobium ciliatum subsp. ciliatum
Barbara Ertter with Laura Fujii
1990-7-21
9401
Contra Costa
Briones Regional Park, Briones Hills W of Pleasant Hill, at Bear Creek crossing on Homestead Valley trail
274
Comment
JEPS100099
Eremocarpus setiger
A. Langston
2003-7-9
AL 64
Contra Costa
Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site
Comment
UC31514
Erigeron philadelphicus var. philadelphicus
J. Burtt Davy
1895-4-13
1007
Contra Costa
near Lafayette
Comment
UC1130318
Erodium moschatum
R. W. Lundh
1933-3-24
217
Contra Costa
Vaca Canyon Concord Quad.
152
Comment
CHSC75109
Eschscholzia californica
Roger Thom
1987-4-21
6
Contra Costa
3300 block of Johnson Rd. Lafayette.
167
Comment
CHSC75044
Foeniculum vulgare
Roger Thom
1987-5-18
13
Contra Costa
1.0mi from intersection with Pleasant Hill Rd on Reliez Valley Road. Lafayette. (1600 block)
182
Comment
JEPS112503
Fritillaria affinis
A. G. Murdock
2004-4-30
262
Contra Costa
Vaca Canyon
165
Comment
UC964759
Galium murale
Herbert L. Mason
1944-3-17
Contra Costa
Briones Hills
Comment
UC2013031
Galium parisiense
Barbara Ertter with Travis Columbus
1990-6-10
9107
Contra Costa
NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill; above junction of Spengler and Blue Oaks trails.
Comment
CHSC24900
Geranium dissectum
T. S. Byler
1976-4-17
14
Contra Costa
Ca 200 yds n of Lafayette Reservoir, ca 50 yds e of entrance road.
152
Comment
UC1300816
Geranium molle
Helen K. Sharsmith
1962-4-18
4956
Contra Costa
Reliez Valley Road San Francisco Bay Region
152
Comment
UC2013035
Grindelia hirsutula
Barbara Ertter with Travis Columbus
1990-6-10
9099
Contra Costa
NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill; trail heading down ridge on N side of Briones Peak, at junction with Spengler Trail.
Comment
JEPS54107
Guillenia lasiophylla
H. P. Chandler
1900-3-24
Contra Costa
Briones Hills Region of Mount Diablo
Comment
CAS-BOT-BC305323
Helianthella castanea
D. E. Breedlove
1970-4-18
17440
Contra Costa
At the north edge of Lafayette above Laurel Drive
243
Comment
UC2013032
Helianthella castanea
Barbara Ertter with Travis Columbus
1990-6-10
9107
Contra Costa
NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill; E-facing steep hillside above junction of Spengler and Blue Oaks trails.
Comment
UCR260817
Helianthus annuus
D. Finley
1998-4-25
1- 07
Contra Costa
San Francisco Bay Region, Lafayette, 2.5 miles at the crow flies west of highway 24 east in a residential area, on Lafayette Ridge behind 1212 Monticello Road
229
Comment
JEPS111842
Heliotropium curassavicum
D. G. Kelch
2004-7-9
04 .307
Contra Costa
Muir grave Alhambra Creek, Martinez, Near Muir gravesite
60
Comment
CHSC75063
Helminthotheca echioides
Roger Thom
1987-5-28
26
Contra Costa
3300 block of Johnson Rd. 0.3 mi from intersection with Reliez Valley Rd. Lafayette. Edge of pasture.
137
Comment
CDA38358
Heracleum lanatum
A. G. Murdock
2004-4-3
260
Contra Costa
Vaca Canyon.
Comment
JEPS111598
Heracleum lanatum
A. G. Murdock
2004-4-30
260
Contra Costa
Vaca Canyon
165
Comment
JEPS111921
Hesperocnide tenella
Dean G. Kelch and Andrew G. Murdock
2003-6-2
AGM 82
Contra Costa
Franklin Canyon - McHarry Ranch Rd.
Comment
JEPS112086
Heteromeles arbutifolia
D. G. Kelch
2004-3-13
04 .38
Contra Costa
Vaca Canyon. Alhambra Valley Road
165
Comment Read comments Sep 3 2013
CDA7976
Holocarpha heermannii
D. G. Kelch, A. G. Murdock
2003-8-13
3 .129
Contra Costa
Carquinez Strait Region; Pig Sale
Comment
JEPS111679
Holocarpha heermannii
D. G. Kelch
2003-8-13
03 .129
Contra Costa
Pig Sale
250
Comment
UC1619971
Holocarpha heermannii
Barbara Ertter
1990-9-10
9641
Contra Costa
Briones Hills s of Martinez (throughout Briones Regional Park); Briones Regional Park, Briones Hills
Comment
UC532123
Holocarpha heermannii
David D. Keck
1933-10-28
2605
Contra Costa
4.5 mi s Martinez (on road to Pacheco)
Comment
JEPS112080
Holodiscus discolor
D. G. Kelch
2003-8-13
03 .125
Contra Costa
Vaca Canyon
165
Comment
UC1197942
Juglans californica var. hindsii
Joseph P. Tracy
1934-4-30
13186
Contra Costa
near Lafayette; North Coast Ranges
152
Comment
SJSU6440
Juglans hindsii
C. O. Dudley
1966-5-8
109
Contra Costa
Reliez Valley, Briones Hills, N of Lafayette
152
Comment
JEPS100049
Juncus bufonius
A. Langston
2003-6-6
AL 39
Contra Costa
Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site
Comment
JEPS100048
Juncus patens
A. Langston
2003-6-6
AL 38
Contra Costa
Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site
Comment
JEPS112433
Juncus xiphioides
D. G. Kelch
2004-7-9
04 .307
Contra Costa
Arroyo del Hambre Alhambra Creek, Martinez, Near Muir gravesite
60
Comment
UC1618293
Lagophylla ramosissima
Barbara Ertter
1990-9-10
9636
Contra Costa
eroded n-facing draw between Sindicich lagoon and Maricich lagoon (s of Martinez); Briones Regional Park, Briones Hills
335
Comment
UC579839
Lamium amplexicaule
Annetta Carter
1937-4-4
1230
Contra Costa
about 10 mi e Pinole; Vaca Canyon
Comment
JEPS111488
Lasthenia glaberrima
Nancy Hillyard
2004-5-18
884
Contra Costa
Briones Park
Comment
CAS-BOT-BC213349
Lathyrus jepsonii subsp. californicus
Volney Rattan
1887-5-22
s.n.
Contra Costa
Alhambra Valley
Comment
CAS-BOT-BC213350
Lathyrus jepsonii subsp. californicus
Volney Rattan
1887-5-22
s.n.
Contra Costa
Alhambra Valley
Comment
CAS-BOT-BC213351
Lathyrus jepsonii subsp. californicus
Volney Rattan
1887-5-22
s.n.
Contra Costa
Alhambra Valley
Comment
JEPS99995
Lathyrus latifolius
G. Smick
2003-5-30
GAS 199
Contra Costa
Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site
Comment
UC30668
Layia gaillardioides
H. P. Chandler
1900-3-24
Contra Costa
Briones Hills; Mount Diablo
Comment
JEPS100082
Lepidium latifolium
A. Langston
2003-6-6
AL 34
Contra Costa
Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site
Comment
JEPS104705
Lepidium nitidum
John L. Morrison
1937-3-6
1969
Contra Costa
Bear Creek Canyon; Black Hills; San Pablo watershed area
Comment
JEPS78895
Leymus X multiflorus
Edward Lee
1935-8-13
1616
Contra Costa
Vaca Canyon; roadside
Comment
SEINET10925827
Leymus X multiflorus
Edward Lee
1935-8-13
Lee 1616
Contra Costa
With stolons. Open grassy roadside. Vaca Canyon.
Comment
RSA108330
Leymus triticoides
Frank W. Gould
1941-5-16
1298
Contra Costa
In roadside ditch, 1/2 mile east of Lafayette on C.S. Highway 24.
Comment Read comments Nov 1 2011
JEPS112261
Lithophragma affine
A. G. Murdock
2004-4-30
259
Contra Costa
Vaca Canyon
Comment
JEPS112262
Lithophragma affine
A. G. Murdock
2004-4-30
265
Contra Costa
Vaca Canyon
Comment
JEPS112265
Lithophragma affine
D. G. Kelch
2005-3-11
05 .033
Contra Costa
Franklin Canyon - McHarry Ranch Road.; McHarry Ranch Road off of Franklin Canyon Road
Comment
CDA25418
Lithophragma heterophyllum
A. G. Murdock, D. G. Kelch
2004-4-3
240
Contra Costa
Vaca Canyon.
Comment
CDA25419
Lithophragma heterophyllum
A. G. Murdock, D. G. Kelch
2004-4-3
257
Contra Costa
Vaca Canyon.
Comment
CDA945
Lithophragma heterophyllum
D. G. Kelch
2006-5-4
6 .124
Contra Costa
Carquinez Strait; Vaca Canyon, on North facing road cut/bank along Alhambra Valley Road.
Comment
CHSC107516
Lithophragma heterophyllum
D. G. Kelch
2006-5-4
06 .124
Contra Costa
Coast Range: Vaca Canyon, on North facing road cut/bank along Alhambra Valley Road.
162
Comment
CHSC107534
Lithophragma heterophyllum
D. G. Kelch
2006-5-4
06 .124
Contra Costa
Coast Range: Vaca Canyon, on North facing road cut/bank along Alhambra Valley Road.
162
Comment
UC1088544
Lithophragma heterophyllum
John H. Weiler
1959-1
5944
Contra Costa
along Bear Creek Road
Comment
GH366671
Lupinus albifrons
H. P. Chandler
1900-3-24
586
Unknown
Briones Hills
Comment
UC127542
Lupinus albifrons
H. P. Chandler
1900-3-24
586
Contra Costa
Briones Hills
Comment
UCR12074
Lupinus bicolor
Coleta A. Lawler
1964-5-8
057
Contra Costa
San Francisco Bay Region, Hampton Road, 3 .7 mi south of junction with Alhambra Valley Road; c. 10 miles northwest of Lafayette
46
Comment
UC2029110
Lupinus formosus var. formosus
Barbara Ertter with Travis Columbus
1990-6-10
9116
Contra Costa
NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill, SE of Alhambra Valley staging area
Comment
JEPS112364
Lupinus latifolius var. latifolius
Dean G. Kelch and Andrew G. Murdock
2004-4-30
256
Contra Costa
Vaca Canyon; County: Contra Costa; On steep south slope along road.
Comment
UC1618312
Lupinus latifolius var. latifolius
Barbara Ertter with Laura Fujii
1990-7-21
9402
Contra Costa
W of Pleasant Hill (Homestead Valley trail, at Bear Creek crossing; Briones Hills); Briones Regional Park
274
Comment
JEPS65413
Lupinus pachylobus
E. L. Greene
1887-4-15
Contra Costa
Briones Bills; Briones Hills
Comment
CHSC75089
Lupinus polycarpus
Roger Thomas
1987-4-21
5
Contra Costa
3300 block of Johnson Rd. Lafayette.
152
Comment
CDA35747
Malvella leprosa
D. G. Kelch, Andrew G. Murdock
2004-7-9
4 .306
Contra Costa
Carquinez Strait; Alhambra Creek, Martinez, near Muir gravesite, Arroyo del Hambre.
Comment
JEPS111545
Malvella leprosa
D. G. Kelch
2004-7-9
04 .306
Contra Costa
Arroyo del Hambre Alhambra Creek, Martinez, Near Muir gravesite
60
Comment
UC1122829
Marah fabacea
R. W. Lundh
1933-3-15
214
Contra Costa
Vaca Canyon Concord Quadrangle
Comment
CAS-BOT-BC281431
Melica imperfecta
D. E. Breedlove
1970-4-18
17433
Contra Costa
At the N edge of Lafayette above Laurel Drive
243
Comment
RSA295077
Melica torreyana
Robert A. Norris, John L. Inase
1981-4-25
4143
Contra Costa
Alongside Abrigo Valley trail, west part of Briones Regional Park (ca. 3 miles NNW Lafayette).
220
Comment
CDA1109
Melissa officinalis
D. G. Kelch
2005-7-14
5 .462
Contra Costa
Carquinez Strait Region; Arroyo del Hambre; Franklin Creek near Glen Frazier.
Comment
CAS-BOT-BC348650
Micropus californicus var. subvestitus
V. Rattan
1887-5-22
s.n.
Contra Costa
Alhambra Val.
Comment
SJSU10601
Microseris douglasii
C. O. Dudley
1966-5-8
Contra Costa
Briones Hills, Reliez Valley, Lafayette
152
Comment
CHSC75113
Montia perfoliata
Roger Thom
1987-4-17
1
Contra Costa
3300 block Johnson Rd. in Lafayette.
152
Comment
CAS-BOT-BC83286
Myosurus minimus
H. L. Mason
1932-3-20
6854
Contra Costa
Briones road.
Comment
UC634927
Myosurus minimus
H. L. Mason
1932-3-20
6854
Contra Costa
Briones Road
Comment
UC2042751
Myriophyllum verticillatum
Barbara Ertter with Lynne Hosley
1991-9-22
10822
Contra Costa
Lafayette Reservoir in hills SW of Lafayette, in water at E end of dam.
Comment
CAS-BOT-BC259906
Nassella lepida
D. E. Breedlove
1970-4-18
17447
Contra Costa
At the N edge of Lafayette above Laurel Drive
243
Comment
RSA217245
Nassella lepida
D. E. Breedlove
1970-4-18
17437
Contra Costa
At the north edge of Lafayette above Laurel Drive
244
Comment
UCD87434
Nassella pulchra
A. A. Beetle
1941-3-29
1718
Contra Costa
near Orinda.
Comment
UCD87436
Nassella pulchra
A. A. Beetle
1941-3-29
1718
Contra Costa
Orinda.
Comment
JEPS112008
Navarretia squarrosa
D. G. Kelch
2004-7-9
04 .317
Contra Costa
Ferndale Road Ferndale Road North of Alhambra Valley Road. Trail to west of road end.
240
Comment
JEPS87936
Navarretia squarrosa
Barbara Ertter with Laura Fujii
1990-7-21
9398
Contra Costa
w of Pleasant Hill (near junction of Briones Crest and Spengler trails); Briones Regional Park, Briones Hills
396
Comment
UC1607552
Navarretia squarrosa
Barbara Ertter with Laura Fujii
1990-7-21
9398
Contra Costa
w of Pleasant Hill (near junction of Briones Crest and Spengler trails); Briones Regional Park, Briones Hills
396
Comment
JEPS111834
Nemophila heterophylla
A. G. Murdock
2004-4-30
258
Contra Costa
Vaca Canyon
165
Comment
SJSU6099
Nemophila heterophylla
C. O. Dudley
1966-3-30
Contra Costa
Briones Hills 10 mi SW of Martinez
Comment
UC1106202
Nemophila heterophylla
Peter H. Raven
1950-3-12
1426
Contra Costa
Happy Valley Road .9 mi above junction with Upper Happy Valley Road; Happy Valley Road
243
Comment
UC67147
Nemophila menziesii
Harley P. Chandler
1900-3-23
595
Contra Costa
Briones Hills San Francisco Bay Region, Briones Hills
Comment
RSA128906
Oemleria cerasiformis
Peter H. Raven
1950-3-5
1409
Contra Costa
Happy Valley Road, 2.8 miles above intersection with Upper Happy Valley road.
244
Comment
RSA51235
Oemleria cerasiformis
Peter H. Raven
1950-3-5
1409
Contra Costa
Happy Valley Road, 2.8 miles above intersection with Upper Happy Valley road.
244
Comment
JEPS100065
Olea europaea
A. Langston
2003-7-24
AL 70
Contra Costa
Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site
Comment
UC27898
Orobanche uniflora subsp. occidentalis
J. Burtt Davy
1895-4-13
1004
Contra Costa
Lafayette.
Comment
JEPS121477
Orobanche vallicola
Adam C. Schneider
2013-10-12
316
Contra Costa
Briones Regional Park, along north side of Beark Creek Trail, about 3/4 mile east of Oak Grove campground.
Comment
JEPS121587
Orobanche vallicola
Sam Young
2013-8-5
s. n.
Contra Costa
Briones Road, ~ 50 ft SW of intersection with Alhambra Valley Road, Martinez.
Comment
JEPS82723
Orobanche vallicola
Wayne Roderick
1981-10-2
Contra Costa
s. entrance area Briones Regional Park
152
Comment
JEPS111599
Osmorhiza berteroi
A. G. Murdock
2004-4-30
263
Contra Costa
Vaca Canyon
165
Comment
UC1618306
Osmorhiza berteroi
Barbara Ertter with Travis Columbus
1990-6-10
9108
Contra Costa
near stream crossing on Spengler Creek ne Briones Peak (ne corner of park, w of Pleasant Hill); Briones Regional Park, Briones Hills
182
Comment
CHSC75108
Oxalis pes-caprae
Roger Thom
1987-4-21
4
Contra Costa
3300 block of Johnson Rd. Lafayette. At edge of field.
152
Comment
SJSU6411
Papaver heterophyllum
G. C. Dudley
1966-5-1
112
Contra Costa
Reliez Valley, Briones Hills, N of Lafayette
Comment
UC1125734
Pedicularis densiflora
C. M. Belshaw
1936-2-16
1586
Contra Costa
2 1/2 mi nw of Lafayette
518
Comment
CDA42757
Pellaea andromedifolia
A. G. Murdock
2004-4-3
247
Contra Costa
Franklin Canyon - McHarry Ranch Road, near fire road entrance.
Comment
JEPS112051
Pellaea andromedifolia
A. G. Murdock
2004-4-30
247
Contra Costa
Franklin Canyon - McHarry Ranch Rd
126
Comment
CAS-BOT-BC71614
Pentagramma triangularis
D. E. Breedlove
1970-4-18
17426
Contra Costa
at the north edge of Lafayette above Laurel Drive
243
Comment
UC2029184
Pentagramma triangularis
Barbara Ertter
1990-5-19
8999
Contra Costa
Lafayette Ridge of Briones Regional Park N of Lafayette.
Comment
UC672410
Phacelia ciliata var. ciliata
Herbert L. Mason
1929-3-31
5139
Contra Costa
Briones Road Hills northeast of Mount Diablo
Comment
UC672349
Phacelia tanacetifolia
Herbert L. Mason
1929-3-31
5140
Contra Costa
hills n Mt. Diablo (Briones Rd)
Comment
UC12452
Physocarpus capitatus
J. Burtt Davy
1895-4-4
1000
Contra Costa
near Lafayette
Comment
JEPS111489
Plagiobothrys undulatus
Nancy Hillyard
2004-5-18
886
Contra Costa
Briones Park
Comment
JEPS112002
Platanus racemosa
D. G. Kelch
2003-8-13
03 .122
Contra Costa
Arroyo del Hambre Along Alhambra Creek E of Mt Wanda. w/ AGM
74
Comment
JEPS112003
Platanus racemosa
D. G. Kelch
2004-4-25
04 .106
Contra Costa
Arroyo del Hambre Along Alhambra Creek in Martinez
74
Comment
UC1126493
Platystemon californicus
R. C. Wilson
1935-3-26
143
Contra Costa
2 mi n Walnut Creek; Concord Quad.
Comment
UC566962
Platystemon californicus
R. C. Wilson
1935-3-26
143
Contra Costa
2 mi n Walnut Creek; Concord Quad.
Comment
CHSC24920
Plectritis ciliosa
M. A. Callahan
1976-4-14
13
Contra Costa
On west slope ca. 135 m. e of house at 1976 Mohawk Dr. Pleasant Hill.
140
Comment
CDA946
Poa howellii
D. G. Kelch
2006-5-4
6 .127
Contra Costa
Carquinez Strait; Vaca Canyon, on North facing road cut/bank along Alhambra Valley Road.
Comment
CHSC107517
Poa howellii
D. G. Kelch
2006-5-4
06 .127
Contra Costa
Coast Range: Vaca Canyon, on North facing road cut/bank along Alhambra Valley Road.
162
Comment
CAS-BOT-BC236395
Poa secunda subsp. secunda
D. E. Breedlove
1970-4-18
17551
Contra Costa
At the N edge of Lafayette above Laurel Drive
243
Comment
JEPS100034
Polypogon monspeliensis
A. Langston
2003-6-6
AL 36
Contra Costa
Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site
Comment
UCD37370
Polypogon monspeliensis
Beecher Crampton
1959-9-3
5453
Contra Costa
Contra Costa County, 2 miles north of city of Orinda, Bear Creek, East Bay Municipal Utilities District Project.
Comment
JEPS100004
Populus fremontii
A. Langston
2003-9-16
AL 91
Contra Costa
Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site
Comment
JEPS46554
Proboscidea
G. Thomas Robbins
1959-8-1
4114
Contra Costa
roadside berm of frontage road just s Mt. Diablo Blvd. ((about 0.5 mi e of concrete bridge at Charles Hill and about 0.2 mi w of jct. of Hidden Valley Rd.), 2 mi w of Lafayette)
144
Comment
JEPS23820
Proboscidea lutea
G. Thomas Robbins
1959-8-1
4114
Contra Costa
roadside berm of frontage road just s Mt. Diablo Blvd. ((about 0.5 mi e of concrete bridge at Charles Hill and about 0.2 mi w of jct. of Hidden Valley Rd.), 2 mi w of Lafayette)
144
Comment
JEPS23821
Proboscidea lutea
G. Thomas Robbins
1959-8-1
4114
Contra Costa
roadside berm of frontage road just s Mt. Diablo Blvd. ((about 0.5 mi e of concrete bridge at Charles Hill and about 0.2 mi w of jct. of Hidden Valley Rd.), 2 mi w of Lafayette)
144
Comment
JEPS46555
Proboscidea lutea
W. E. Chatfield
1959-7-25
Contra Costa
roadside berm of frontage road just s Mt. Diablo Blvd. ((about 0.5 mi e of concrete bridge at Charles Hill and about 0.2 mi w of jct. of Hidden Valley Rd.), 2 mi w of Lafayette)
144
Comment
JEPS84884
Proboscidea lutea
G. Thomas Robbins
1959-8-1
4114
Contra Costa
roadside berm of frontage road just s Mt. Diablo Blvd. ((about 0.5 mi e of concrete bridge at Charles Hill and about 0.2 mi w of jct. of Hidden Valley Rd.), 2 mi w of Lafayette)
144
Comment
UC12809
Prunus subcordata
H. P. Chandler
1900-3-24
Contra Costa
Briones Hills Region of Mount Diablo
Comment
UC64518
Prunus subcordata
H. M. Hall
1900-3-24
Contra Costa
Briones Hills; San Francisco Bay region
Comment
CAS-BOT-BC148643
Ptelea crenulata
V. Rattan
1887-5-22
s.n.
Contra Costa
Alhambra Val.
Comment
CAS-BOT-BC148644
Ptelea crenulata
V. Rattan
1887-5-22
s.n.
Contra Costa
Alhambra Valley
Comment
CAS-BOT-BC148647
Ptelea crenulata
Volney Rattan
1887-5-22
s.n.
Contra Costa
Alhambra Val.
Comment
SJSU5754
Ptelea crenulata
C. O. Dudley
1966-5-1
103
Contra Costa
Reliez Valley, Briones Hills, N of Lafayette
152
Comment
UC2029093
Ptelea crenulata
Barbara Ertter with Travis Columbus
1990-6-10
9110
Contra Costa
NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill, on Spengler Trail NE of Briones Peak.
Comment
JEPS111935
Pteridium aquilinum
A. G. Murdock
2004-4-30
244
Contra Costa
Vaca Canyon On north side of road along creek
165
Comment
UC1198069
Pterostegia drymarioides
Joseph P. Tracy
1934-4-30
13191
Contra Costa
near Lafayette
152
Comment
UCSC009992
Quercus
Al Keuter
2014-5-23
00 097 B
Contra Costa
Along Reliez Valley Road, Lafayette
72
Comment
UCSC010010
Quercus
Al Keuter
2014-5-23
00 097 A
Contra Costa
Along Reliez Valley Road, Lafayette
72
Comment
CHSC24131
Quercus agrifolia
M. A. Callahan
1976-4-11
1
Contra Costa
45 ft. nnw of house at 1976 Mohawk Dr., Pleasant Hill. Growing on steep hillside; w side Oak Wd.
121
Comment
JEPS111963
Quercus kelloggii
D. G. Kelch
2004-9-2
04 .330B
Contra Costa
Franklin Canyon - McHarry Ranch Rd. McHarry Ranch Road.
126
Comment
UC2042780
Quercus kelloggii
Barbara Ertter with Travis Columbus
1990-6-10
9115
Contra Costa
NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill, SE Alhambra Valley staging area
Comment
CAS-BOT-BC362446
Rafinesquia californica
Volney Rattan
1887-5-22
s.n.
Contra Costa
Alhambra Val.
Comment
UC584417
Rafinesquia californica
Univ. of Calif., Hort. Genetics
1937-1
564
Contra Costa
Briones Hills
Comment
CHSC24922
Ranunculus californicus
M. A. Callahan
1976-4-11
8
Contra Costa
Ca. 70 m e of house at 1976 Mohawk Dr. Pleasant Hill, at base of canyon.
129
Comment
UC1300986
Ranunculus californicus
Helen K. Sharsmith
1962-3-25
4912
Contra Costa
hills between Happy Valley and Alhambra Valley; San Francisco Bay Region
304
Comment
CDA922
Ranunculus hebecarpus
D. G. Kelch
2006-5-4
6 .125
Contra Costa
Carquinez Strait; Vaca Canyon, on North facing road cut/bank along Alhambra Valley Road.
Comment
JEPS99975
Ranunculus muricatus
G. Smick
2003-4-29
GAS 147
Contra Costa
Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site
Comment
UC61031
Ranunculus orthorhynchus var. bloomeri
N. L. Gardner
1904-2-17
Contra Costa
Happy Valley
Comment
JEPS100009
Raphanus raphanistrum
G. Smick
2003-4-8
GAS 132
Contra Costa
Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site
Comment
JEPS95251
Rhamnus tomentella
Steve Edwards
1995-9-22
Contra Costa
Briones Regional Park, Bear Creek Entrance, near junction of trails to archery range and lagoons
Comment
RSA128347
Ribes californicum
Peter H. Raven
1950-3-5
1408
Contra Costa
Happy Valley Road, 2.8 miles above intersection with Upper Happy Valley road.
244
Comment
UC1127395
Ribes californicum
C. M. Belshaw
1936-2-16
1592
Contra Costa
1 3/4 mi nnw Orinda; Concord Quadrangle, Bear Creek
Comment
UC570402
Ribes californicum
Chas. M. Belshaw
1936-2-16
1592
Contra Costa
1 3/4 mi nnw Orinda; Sobrante and Briones Hills, Bear Creek
99
Comment
UC11524
Ribes divaricatum var. pubiflorum
J. Burtt Davy
1895-4-13
997
Contra Costa
near Lafayette
Comment
UC11525
Ribes divaricatum var. pubiflorum
J. Burtt Davy
1895-4-13
997
Contra Costa
Lafayette
Comment
UC69857
Ribes divaricatum var. pubiflorum
H. M. Hall
1900-3-24
Contra Costa
Bear Creek San Francisco Bay Region
Comment
JEPS111986
Ribes menziesii
D. G. Kelch
2005-2-28
05 .8
Contra Costa
Vaca Canyon Vaca Canyon Alhambra Valley Road Bay Forest road cut with Arbutus
165
Comment
JEPS112081
Rosa californica
D. G. Kelch
2003-8-13
03 .123
Contra Costa
Vaca Canyon
165
Comment
JEPS99977
Rubus ursinus
G. Smick
2003-6-6
GAS 212
Contra Costa
Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site
Comment
SJSU5858
Rubus ursinus
C. O. Dudley
1966-5-1
Contra Costa
Reliez Valley, Briones Hills, N of Lafayette
152
Comment
SJSU5703
Rupertia physodes
C. O. Dudley
1966-5-1
113 a
Contra Costa
Reliez Valley, Briones Hills, N of Lafayette
152
Comment
UC1197438
Rupertia physodes
Joseph P. Tracy
1934-4-30
13195
Contra Costa
near Lafayette
152
Comment
UC1594172
Rupertia physodes
Jerry Powell
1991-6-21
1608
Contra Costa
along creek well away from water Briones Regional Park
Comment
SJSU6174
Salix laevigata
C. O. Dudley
1966-4-4
74
Contra Costa
Reliez Valley, Briones Hills, N of Lafayette
Comment
UC437379
Salix laevigata
J. Burtt Davy
1895-4-13
1011
Contra Costa
near Lafayette
Comment
UC437380
Salix laevigata
J. Burtt Davy
1895-4-13
1005
Contra Costa
near Lafayette
Comment
UC1196658
Salix lasiolepis
Joseph P. Tracy
1930-11-27
9260
Contra Costa
near Lafayette
304
Comment
CAS-BOT-BC233289
Salvia mellifera
D. E. Breedlove
1970-4-18
17448
Contra Costa
At the north edge of Lafayette above Laurel Drive
243
Comment
JEPS100122
Sambucus mexicana
G. Smick
2003-4-29
GAS 150
Contra Costa
Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site
Comment
UC1125352
Sambucus mexicana
C. M. Belshaw
1936-2-16
1593
Contra Costa
2 1/2 mi nne Orinda; Concord Quadrangle, Briones Valley
Comment
UC570378
Sambucus mexicana
Chas. M. Belshaw
1936-2-16
1593
Contra Costa
2 1/2 mi nne Orinda; Sobrante and Briones Hills, Briones Valley
Comment
JEPS121564
Sambucus nigra subsp. caerulea
Adam C. Schneider
2013-10-12
317
Contra Costa
Briones Regional Park, along north side of Beark Creek Trail, about 3/4 mile east of Oak Grove campground.
Comment
JEPS100052
Satureja douglasii
G. Smick
2003-6-6
GAS 213
Contra Costa
Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site
Comment
CDA39143
Scirpus microcarpus
D. G. Kelch
2004-7-9
4 .308
Contra Costa
Carquinez Strait; Martinez; Alhambra Creek, near Muir gravesite. Arroyo del Hambre.
Comment
JEPS111898
Scirpus microcarpus
D. G. Kelch
2004-7-9
04 .308
Contra Costa
Arroyo del Hambre Alhambra Creek, Martinez, Near Muir gravesite.
60
Comment
JEPS100143
Scrophularia californica subsp. californica
G. Smick
2003-4-3
GAS 122
Contra Costa
Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site
Comment
JEPS100077
Sisymbrium officinale
A. Langston
2003-6-19
AL 49
Contra Costa
Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site
Comment
JEPS100079
Sisymbrium officinale
A. Langston
2003-6-19
AL 48
Contra Costa
Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site
Comment
CHSC24717
Sisyrinchium bellum
G. Strang
1976-4-13
12
Contra Costa
Hills directly S.W. of archery range in Briones Park.
182
Comment
CHSC24841
Sisyrinchium bellum
M. A. Callahan
1976-4-15
17
Contra Costa
Top of ridge ca. 145m e of house at 1976 Mohawk Dr. Pleasant Hill.
152
Comment
JEPS100043
Sisyrinchium bellum
G. Smick
2003-3-4
GAS 61
Contra Costa
Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site
Comment
CDA39383
Smilacina racemosa
A. G. Murdock
2004-4-3
245
Contra Costa
Vaca Canyon.
Comment
JEPS112505
Smilacina racemosa
A. G. Murdock
2004-4-30
245
Contra Costa
Vaca Canyon
165
Comment
CDA39388
Smilacina stellata
A. G. Murdock
2004-4-3
246
Contra Costa
Vaca Canyon.
Comment
JEPS112504
Smilacina stellata
A. G. Murdock
2004-4-30
246
Contra Costa
Vaca Canyon
165
Comment
CHSC24836
Solanum umbelliferum
M. A. Callahan
1976-4-14
16
Contra Costa
40 m ene of house at 1976 Mohawk Dr. Pleasant Hill.
106
Comment
UC2042781
Solanum umbelliferum
Barbara Ertter with Travis Columbus
1990-6-10
9109
Contra Costa
NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill, on Spengler Trail NE of Briones Peak
Comment
JEPS100171
Solidago velutina subsp. californica
A. Langston
2003-6-19
AL 47
Contra Costa
Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site
Comment
CAS-BOT-BC422908
Stylomecon heterophylla
D. E. Breedlove
1970-4-18
17430
Contra Costa
At the north edge of Lafayette above Laurel Drive.
243
Comment
CAS-BOT-BC422916
Stylomecon heterophylla
Volney Rattan
1887-5-22
s.n.
Contra Costa
Alhambra Val.
Comment
CAS-BOT-BC269562
Symphoricarpos albus var. laevigatus
V. Rattan
1887-5-22
s.n.
Contra Costa
Alhambra Val.
Comment
JEPS100085
Symphoricarpos albus var. laevigatus
A. Langston
2003-7-24
AL 71
Contra Costa
Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site
Comment
CDA37132
Tamarix parviflora
Wil Schaub
2012-4-19
PDR# 1641194
Contra Costa
Lafayette; 3697 Happy Valley Road.
0
Comment
CDA37133
Tamarix parviflora
Wil Schaub
2012-4-19
PDR# 1641195
Contra Costa
Lafayette; 3954 Las Arabis Drive.
0
Comment
UC19168
Tamarix parviflora
J. Burtt Davy
1895-4-13
1013
Contra Costa
Lafayette
Comment
CHSC75158
Tanacetum parthenium
Roger Thom
1987-5-24
14
Contra Costa
3354 Johnson Rd., Lafayette.
167
Comment
UC1301106
Taraxia ovata
Helen K. Sharsmith
1962-4-18
4957
Contra Costa
Reliez Valley Rd. San Francisco Bay Region
152
Comment
UC1618308
Tauschia hartwegii
Barbara Ertter with Travis Columbus
1990-6-10
9106
Contra Costa
ne corner Briones Regional Park (e-facing steep hillside above junction of Spengler and Blue Oak trails, Briones Hills, w of Pleasant Hill); ne corner of Briones Regional Park, Briones Hills
274
Comment
CAS-BOT-BC172933
Toxicodendron diversilobum
D. E. Breedlove
1970-4-18
17442
Contra Costa
At the north edge of Lafayette above Laurel Drive
243
Comment
CHSC75068
Tragopogon porrifolius
Roger Thom
1987-5-18
11
Contra Costa
0.15 mi. from west intersection with Stanley Blvd. on Camino Diablo. Lafayette. Shoulder of road.
30
Comment
JEPS63121
Trichostema lanceolatum
W. L. Jepson
1895-9-14
14880
Contra Costa
Lafayette
Comment
CDA938
Trientalis latifolia
D. G. Kelch
2006-5-4
6 .126
Contra Costa
Carquinez Strait; Vaca Canyon, on North facing road cut/bank along Alhambra Valley Road.
Comment
JEPS112044
Trientalis latifolia
A. G. Murdock
2004-4-30
264
Contra Costa
Vaca Canyon
165
Comment
UC147749
Trifolium albopurpureum var. dichotomum
Ivar Tidestrom
1895-4-13
Contra Costa
near Lafayette
Comment
UC630753
Trifolium albopurpureum var. dichotomum
Ivar Tidestrom
1895-4-13
Contra Costa
near Lafayette
Comment
UC146057
Trifolium bifidum var. decipiens
Ivar Tidestrom
1895-4-13
Contra Costa
near Lafayette
Comment
CHSC24925
Trifolium ciliolatum
M. A Callahan
1976-4-15
20
Contra Costa
Ca. 15 mi ne of house at 1976 Mohawk Dr. Pleasant Hill.
121
Comment
UC16457
Trifolium ciliolatum
Ivar Tidestrom
1895-4-13
Contra Costa
near Lafayette
Comment
UC165565
Trifolium depauperatum var. amplectens
Ivar Tidestrom
1895-4-13
Contra Costa
near Lafayette
Comment
JEPS65752
Trifolium depauperatum var. truncatum
Ivar Tiderstrom
1895-4-13
Contra Costa
Lafayette
Comment
UC147173
Trifolium depauperatum var. truncatum
Ivar Tidestrom
1895-4-13
Contra Costa
near Lafayette
Comment
UC33446
Trifolium fucatum
Jos. Burtt Davy
1895-4-13
999
Contra Costa
Lafayette
Comment
UC631032
Trifolium gracilentum
Ivar Tidestrom
1895-4-13
Contra Costa
near Lafayette
Comment
UC165547
Trifolium oliganthum
Ivar Tidestrom
1895-4-13
Contra Costa
near Lafayette
Comment
SJSU5771
Trifolium variegatum
C. O. Dudley
1966-4-16
Contra Costa
Reliez Valley, Briones Hills N of Lafayette
Comment
UC165546
Trifolium variegatum var. melananthum
Ivar Tidestrom
1895-4-13
Contra Costa
near Lafayette
Comment
UC16747
Trifolium willdenovii
H. P. Chandler
1900-3-24
587
Contra Costa
Briones HIlls Mt. Diablo region
Comment
JEPS15190
Triphysaria eriantha subsp. eriantha
R. C. Wilson
1935-3-26
144
Contra Costa
2 mi n Walnut Creek; Concord Quad.
Comment
CAS-BOT-BC91092
Umbellularia californica
Annetta Carter
1937-3-20
1224
Contra Costa
Lake Orinda Road, two miles northwest of Orinda.
121
Comment
GH381275
Umbellularia californica
A. M. Carter
1937-3-20
1224
Unknown
Lake Orinda Road, two miles northwest of Orinda
121
Comment
UC1196278
Umbellularia californica
Joseph P. Tracy
1930-11-27
9262
Contra Costa
near Lafayatte
152
Comment
SBBG45098
Umbellularia californica var. californica
A. Carter
1937-3-20
1224
Contra Costa
Lake Orinda Rd, 2 mi NW of Orinda
121
Comment
UC1789154
Viburnum ellipticum
Barbara Ertter
2001-9-16
17808
Contra Costa
Briones Regional Park, Toyon Canyon Trail, shaded west-facing slope with Ptelea.
Comment
CHSC75276
Vicia sativa
Roger Thom
1987-4-21
2
Contra Costa
3354 Johnson Rd. Lafayette.
Comment
UC1300884
Vicia sativa subsp. nigra
Helen K. Sharsmith
1962-4-18
4958
Contra Costa
Reliez Valley Road; San Francisco Bay Region
152
Comment
JEPS111931
Vitis californica
Dean G. Kelch and Andrew G. Murdock
2003-8-13
DGK 03 .128
Contra Costa
Vaca Canyon.
Comment
CHSC24921
Wyethia glabra
M. A. Callahan
1976-4-11
3
Contra Costa
Ca. 300 ft. e of house at 1976 Mohawk Dr. Pleasant Hill on steep w slope.
137
Comment
JEPS100164
Wyethia helenioides
S. O'Neil
2003-3-11
SEO 14
Contra Costa
Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site
Comment
JEPS100163
Xanthium spinosum
A. Langston
2003-7-28
AL 78
Contra Costa
Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site
Comment
JEPS100067
Xanthium strumarium
A. Langston
2003-7-28
AL 77
Contra Costa
Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site
Comment