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Specimen ID
Determination *
Collector
Collection Date
Collection Number
County
Locality
Elevation in meters
Feedback
OBI73546
Acacia longifolia
David J. Keil
2010-7-20
30920
San Luis Obispo
Along Country Oak Way, east of Arroyo Grande, between Thomas Hill Road and Lopez Drive
100
Comment
UCR140079
Acer macrophyllum
George K. Helmkamp
2004-4-1
8420
San Luis Obispo
Central Coast, Nipomo Mesa; Mesa Dunes Mobile Home Park along Mesa View Dr., 0.2 mi south of Halcyon Rd.
76
Comment
OBI57889
Acer negundo
David J. Keil
2000-3-8
28436
San Luis Obispo
Arroyo Grande. At the swinging bridge over Arroyo Grande Creek.
Comment
UCR140374
Acer negundo
George K. Helmkamp
2004-3-19
8381
San Luis Obispo
Central Coast, Arroyo Grande, along Traffic Way south of Grand Ave. at Arroyo Grande Creek
24
Comment
GH363612
Acer negundo var. californicum
W. H. Brewer
1860-4-12
433
Unknown
Arroyo Grande, near S. Luis Obispo
Comment
RSA696454
Acer negundo var. californicum
Keith E. Hoffmaster
1935-7-1
612
San Luis Obispo
Near Arroyo Grande
Comment
UC18106
Acer negundo var. californicum
W. H. Brewer
1861-4-12
433
San Luis Obispo
Arroyo Grande
Comment
UC29292
Achyrachaena mollis
Alice King
1900-1-1
San Luis Obispo
Arroyo Grande
Comment
OBI13028
Acmispon strigosus
Robert F. Hoover
1967-3-5
10242
San Luis Obispo
Upper Arroyo Grande
Comment
OBI13031
Acmispon strigosus
Robert F. Hoover
1967-3-5
10242
San Luis Obispo
Upper Arroyo Grande
Comment
UCD104464
Acmispon strigosus
John C. Tothill
1960-1
s.n.
San Luis Obispo
San Luis Obispo County: Arroyo Grande.
Comment
JEPS36233
Agoseris heterophylla var. cryptopleura
W. L. Jepson
1941-4-17
20259
San Luis Obispo
Arroyo Grande
Comment
OBI17132
Agoseris heterophylla var. cryptopleura
Robert F. Hoover
1967-4-12
10436
San Luis Obispo
Upper Arroyo Grande
Comment
UC75802
Agoseris hirsuta
Miss M. Alice King
1895-5-1
San Luis Obispo
Arroyo Grande Arroyo Grande
Comment
OBI57104
Agrostis hooveri
G. F. Hrusa
1995-5-2
12229
San Luis Obispo
Black Butte Research Natural Area
600
Comment
OBI82443
Agrostis hooveri
David J. Keil, with V. L. Holland
2015-6-19
33250
San Luis Obispo
Rural area north of Arroyo Grande between Corbett Canyon Road and Highway 227, accessed via Dairy Lane and a private drive
125
Comment
OBI80006
Aira caryophyllea
David J. Keil, with V. L. Holland
2013-6-12
31799
San Luis Obispo
Arroyo Grande area off Lopez Drive in vicinity of Sweet Springs Mobile Home Park
Comment
OBI44931
Amaranthus albus
David J. Keil
1984-7-20
18313
San Luis Obispo
E of Arroyo Grande along Lopez Lake Rd jctn with Cecchetti Rd
Comment
UCR147029
Amaranthus albus
George K. Helmkamp, E. A. Helmkamp
2004-10-8
8841
San Luis Obispo
Central Coast, Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive and Arroyo Grande Creek
136
Comment
OBI44933
Amaranthus deflexus
David J. Keil
1984-7-20
18311
San Luis Obispo
E of Arroyo Grande along Lopez Lake Rd jctn with Cecchetti Rd
Comment
RSA720302
Amaranthus deflexus
George K. Helmkamp
2003-7-31
8061
San Luis Obispo
Central Coast: west edge of Nipomo Hill at junction of Cienaga Rd. and Valley View Road
15
Comment
SBBG95635
Amaranthus deflexus
D. Keil
1984-7-20
18311
San Luis Obispo
E of Arroyo Grande along Lopez Lake Rd at jct w Cecchetti Rd
Comment
UCR132048
Amaranthus deflexus
George K. Helmkamp
2003-7-31
8061
San Luis Obispo
Central Coast, west edge of Nipomo Hill at junction of Cienaga Rd. and Valley View Road
15
Comment
IRVC28952
Amaranthus palmeri
G. K. Helmkamp
2003-9-21
8167
San Luis Obispo
Los Berros Rd, 0.9 mi SE of El Campo Rd., SE of Arroyo Grande Central Coast
46
Comment
UCR134380
Amaranthus palmeri
George K. Helmkamp
2003-9-21
8167
San Luis Obispo
Central Coast, Los Berros Rd, 0.9 mi SE of El Campo Rd., SE of Arroyo Grande
46
Comment
OBI44932
Amaranthus powellii
David J. Keil
1984-7-20
18312
San Luis Obispo
E of Arroyo Grande along Lopez Lake Rd jctn with Cecchetti Rd
Comment
OBI79797
Amaranthus powellii
David J. Keil
2011-12-11
31207
San Luis Obispo
Arroyo Grande. Southwest of intersection of P.C. Railway and E. Cherry Ave
39
Comment
UCR147226
Amaranthus retroflexus
George K. Helmkamp, E. A. Helmkamp
2004-8-15
8785
San Luis Obispo
Central Coast, Nipomo Mesa. Mesa Dunes Mobile Home Park along Mesa View Dr., 0.2 mi S. of jct. of Halcyon Rd., SE of Oceano
76
Comment
SBBG61142
Ambrosia chamissonis
R. Hoffmann
1930-4-17
San Luis Obispo
Arroyo Grande
Comment
OBI59258
Ambrosia psilostachya
David J. Keil, with Lawrence M. Kelly, Kathryn Bay, and Frieda Wertman
1988-11-12
21196
San Luis Obispo
Near summit along California Route 227 between San Luis Obispo and Arroyo Grande.
213
Comment
RSA749094
Ambrosia psilostachya
David J. Keil, Lawrence M. Kelly, Kathryn Bay, Frieda Wertman
1988-11-12
21196
San Luis Obispo
Near summit along CA Route 227 between San Luis Obispo and Arroyo Grande. Mosaic of coast live oak woodland, chaparral, and coastal scrub.
183
Comment
UC1928026
Ambrosia psilostachya
David Keil, Lawrence M. Kelly, Kathryn Bay, and Frieda Wertman
1988-11-12
21196
San Luis Obispo
Near summit along California Route 227 between San Luis Obispo and Arroyo Grande.
182
Comment
UC13280
Amorpha californica var. californica
Alice King
May, 1895
San Luis Obispo
Arroyo Grande
Comment
UC73264
Amorpha californica var. californica
Miss M. Alice King
June, 1895
San Luis Obispo
Arroyo Grande
Comment
UC1061785
Amsinckia douglasiana
N. K. Carlson
1936-3-18
136
San Luis Obispo
.6 mi ssw of Picacho
99
Comment
UCR140075
Amsinckia intermedia
George K. Helmkamp
2004-4-1
8411
San Luis Obispo
Central Coast, Nipomo Mesa; Mesa Dunes Mobile Home Park along Mesa View Dr., 0.2 mi south of Halcyon Rd.
76
Comment
UCR158739
Amsinckia retrorsa
George K. Helmkamp, E. A. Helmkamp
2005-4-17
9369
San Luis Obispo
Central Coast, Corbett Canyon, 2.3 miles north of Calif. Hwy 227 in Arroyo Grande
81
Comment
UC455986
Amsinckia spectabilis
unknown
Feb., 1905
174
San Luis Obispo
Arroyo Grande
Comment
UC24610
Amsinckia spectabilis var. microcarpa
Alice King
Apr 1895
San Luis Obispo
Arroyo Grande
Comment
SD186308
Anagallis arvensis
G. K. Helmkamp
2003-7-31
8067
San Luis Obispo
Central Coast; west edge of Nipomo Hill at junction of Cienega Rd. and Valley View Road
14
Comment
UC1123234
Anagallis arvensis
N. K. Carlson
1936-3-18
131
San Luis Obispo
0.6 mi. s.-s.w. Picacho (Plot 2); Arroyo Grande Quad.
99
Comment
UCR132017
Anagallis arvensis
George K. Helmkamp
2003-7-31
8067
San Luis Obispo
Central Coast, west edge of Nipomo Hill at junction of Cienaga Rd. and Valley View Road
15
Comment
UCR158742
Anagallis arvensis
George K. Helmkamp, E. A. Helmkamp
2005-4-17
9372
San Luis Obispo
Central Coast, Corbett Canyon, 2.3 miles north of Calif. Hwy 227 in Arroyo Grande
81
Comment
OBI79999
Anthemis cotula
David J. Keil, with V. L. Holland
2013-6-12
31801
San Luis Obispo
Arroyo Grande area off Lopez Drive in vicinity of Sweet Springs Mobile Home Park
Comment
UC26377
Antirrhinum kelloggii
Alice King
Apr 1895
San Luis Obispo
Arroyo Grande
Comment
UC72025
Aphanes occidentalis
Miss M. Alice King
May 1895
San Luis Obispo
Arroyo Grande
Comment
UC75784
Arabis glabra
Miss M. Alice King
Mar 1895
San Luis Obispo
Arroyo Grande
Comment
UC1120195
Arctostaphylos glandulosa subsp. glandulosa
H. C. Lee
1936-2-16
398
San Luis Obispo
head of Newsom Canyon Arroyo Grande Quadrangle
Comment
OBI14562
Arctostaphylos pilosula
Mrs. Robert F. Hoover
1962-1-13
9
San Luis Obispo
Arroyo Grande
Comment
OBI60949
Arctostaphylos pilosula
G. F. Hrusa
1999-2-24
14922
San Luis Obispo
Hwy 227, at corner of Noyes rd, at top of hill
Comment
OBI70808
Arctostaphylos pilosula
David J. Keil, with V. L. Holland
2009-6-16
30618
San Luis Obispo
Between San Luis Obispo and Arroyo Grande. Area southeast of intersection of California Highway 227 (Carpenter Canyon Road) and Noyes Road in vicinity of high tension line corridor. Vic. 35 deg. 9.9'N x 120 deg. 34.9'W.
Comment
SBBG54693
Arctostaphylos pilosula
C. Bornstein, E. Collins
2006-9-21
San Luis Obispo
N of Arroyo Grande, Noyes Rd, ca. 2.4 mi N of jct with Oak Park Rd
298
Comment
UC1309706
Arctostaphylos pilosula
A. E. Wieslander
1936-2-26
610
San Luis Obispo
1 1/2 mi sw Asphalt Mine; Arroyo Grande Quadrangle
106
Comment
UC1334940
Arctostaphylos pilosula
H. C. Lee
1936-2-26
425
San Luis Obispo
s Los Berros Creek (near Hwy 1); Arroyo Grande Quadrangle
121
Comment
CDA16132
Arctostaphylos wellsii
G. F. Hrusa
1999-2-24
14922
San Luis Obispo
South Coast Ranges; Hwy 227, at corner of Noyes Rd, at top of hill.
0
Comment
SBBG69934
Arenaria paludicola
R. Hoffmann
1930-4-18
San Luis Obispo
Arroyo Grande
Comment
SD186065
Artemisia californica
G. K. Helmkamp
2003-7-29
8033 B
San Luis Obispo
0.6 mile south of Nipomo Hill in Arroyo Grande.
46
Comment
UCR132040
Artemisia californica
George K. Helmkamp
2003-7-29
8033 B
San Luis Obispo
Central Coast, 0.6 mi south of Nipomo Hill in Arroyo Grande area
46
Comment
CAS-BOT-BC90624
Artemisia dracunculus
R. F. Hoover
1946-8-17
6294
San Luis Obispo
Upper Arroyo Grande Creek
Comment
CAS-BOT-BC90625
Artemisia dracunculus
R. F. Hoover
1946-8-17
6294
San Luis Obispo
Upper Arroyo Grande Creek
Comment
UC1284981
Artemisia dracunculus
R. F. Hoover
1946-8-17
6294
San Luis Obispo
Upper Arroyo Grande Creek
Comment
RSA734397
Artemisia vulgaris var. heterophylla
Keith E. Hoffmaster
1935-7-1
653
San Luis Obispo
Near Arroyo Grande
Comment
OBI80086
Asparagus asparagoides
David J. Keil, V. L. Holland
2013-6-12
31803
San Luis Obispo
Arroyo Grande area off Lopez Drive in vicinity of Sweet Springs Mobile Home Park
Comment
UCR132142
Aster lanceolatus subsp. hesperius
George K. Helmkamp
2003-10-24
8214
San Luis Obispo
Central Coast, El Campo Rd 0.1 mi east of Los Berros Rd, SE of Arroyo Grande
46
Comment
UCR140407
Aster subulatus var. ligulatus
George K. Helmkamp
2004-2-19
8301 A
San Luis Obispo
Central Coast, Mesa Dunes Mobile Home Park, along Mesa View Dr (Calif. Hwy 1), 0.2 mi south of the jct with Halcyon Rd.
61
Comment
OBI40650
Astragalus curtipes
David J. Keil
1981-3-7
14280
San Luis Obispo
Along rd to Lopez lake about 2 mi W of the dam
Comment
UCR42857
Astragalus curtipes
David J. Keil
1981-3-7
14280
San Luis Obispo
Along road to Lopez Lake c. 2 mi. west of the Dam.
Comment
CAS-BOT-BC182918
Astragalus douglasii
Alice Eastwood; John Thomas Howell
1937-4-30
4161
San Luis Obispo
In the upper Arroyo Grande
Comment
SBBG68237
Astragalus nuttallii
R. Hoffmann
1930-4-18
San Luis Obispo
Arroyo Grande
Comment
UC1128858
Astragalus pomonensis
H. C. Lee
1936-3-23
531
San Luis Obispo
1 1/2 mi w Arroyo Grande; Arroyo Grande Quad., San Luis Obispo National Forest
Comment
CHSC61245
Avena fatua
T. B. Devine
1980-4-5
666
San Luis Obispo
Along Frontage Road just e of Hwy 101 ca 1 mi s of Arroyo Grande.
Comment
UC1130860
Avena fatua
N. K. Carlson
1936-3-18
141
San Luis Obispo
0.6 mi ssw Pichaco (Plot 2); Arroyo Grande Quadrangle
99
Comment
SEINET6188358
Azolla filiculoides
David Keil
1981-10-25
14272 -1
San Luis Obispo
Just west of junction of Huasna and Branch Mill Road east of Arroyo Grande
Comment
JEPS40696
Baccharis pilularis
W. L. Jepson
1940-10-3
20157
San Luis Obispo
near Arroyo Grande
Comment
UCR146965
Baccharis pilularis
George K. Helmkamp, E. A. Helmkamp
2004-10-8
8847
San Luis Obispo
Central Coast, Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive and Arroyo Grande Creek
136
Comment
UCR140134
Bellis perennis
George K. Helmkamp
2004-2-19
8300
San Luis Obispo
Central Coast, Mesa Dunes Mobile Home Park, along Mesa View Dr (Calif. Hwy 1), 0.2 mi south of the jct with Halcyon Rd.
61
Comment
OBI82346
Bidens pilosa
David J. Keil
2015-11-8
33436
San Luis Obispo
California Route 227 between San Luis Obispo and Arroyo Grande, 0.2 miles southeast of junction with Noyes Road
175
Comment
UCR134693
Bidens pilosa
George K. Helmkamp
2003-9-21
8163
San Luis Obispo
Central Coast, Los Berros Rd, 0.9 mi SE of El Campo Rd., SE of Arroyo Grande
46
Comment
UCR147031
Bidens pilosa var. pilosa
George K. Helmkamp, E. A. Helmkamp
2004-10-8
8835
San Luis Obispo
Central Coast, Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive and Arroyo Grande Creek
136
Comment
OBI82444
Bloomeria crocea
David J. Keil, with V. L. Holland
2015-6-19
33251
San Luis Obispo
Rural area north of Arroyo Grande between Corbett Canyon Road and Highway 227, accessed via Dairy Lane and a private drive
125
Comment
UCR169230
Brassica kaber
George K. Helmkamp, E. A. Helmkamp
2005-2-14
8907
San Luis Obispo
Central Coast, Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive
122
Comment
UC1126831
Brassica rapa
N. K. Carlson
1936-3-18
137
San Luis Obispo
.6 mi ssw of Picacho
99
Comment
SD178099
Bromus catharticus
G. K. Helmkamp
2004-3-21
8386
San Luis Obispo
Mesa Dunes Mobile Home Park along Mesa View Dr., 0.2 mile south of the junction of Hlacyon Road, southeast of Oceano.
60
Comment
SEINET251659
Bromus catharticus
George K. Helmkamp
2004-3-21
8386
San Luis Obispo
Central Coast: Mesa Duners Mobile Home Park along Mesa View Dr., 0.2 mi S. of the junction of Halcyon Rd. SE of O ceano ( Oceano 7.5.' Q)
61
Comment
UCR132058
Bromus catharticus
George K. Helmkamp
2003-7-31
8058
San Luis Obispo
Central Coast, west edge of Nipomo Hill at junction of Cienaga Rd. and Valley View Road
15
Comment
UCR140396
Bromus catharticus
George K. Helmkamp
2004-3-21
8386
San Luis Obispo
Central Coast, Mesa Dunes Mobile Home Park along Mesa View Dr., 0.2 mi south of the junction of Halcyon Rd., SE of Oceano
61
Comment
UCR140080
Bromus diandrus
George K. Helmkamp
2004-4-1
8414
San Luis Obispo
Central Coast, Nipomo Mesa; Mesa Dunes Mobile Home Park along Mesa View Dr., 0.2 mi south of Halcyon Rd.
76
Comment
UC1131060
Bromus hordeaceus
N. K. Carlson
1936-3-19
155
San Luis Obispo
1.9 mi ese of Picacho
175
Comment
UCR140096
Bromus hordeaceus
George K. Helmkamp
2004-4-1
8415
San Luis Obispo
Central Coast, Nipomo Mesa; Mesa Dunes Mobile Home Park along Mesa View Dr., 0.2 mi south of Halcyon Rd.
76
Comment
SEINET251702
Bromus madritensis
G. K. Helmkamp, E. A. Helmkamp
2005-2-14
8908
San Luis Obispo
Central Coast, Biddle Regional Park, 7 mile NE of Arroyo Grande along Lopez Dr.
122
Comment
UC1131225
Bromus madritensis subsp. rubens
N. K. Carlson
1936-3-18
126
San Luis Obispo
1 mi e of Nipomo Hill
76
Comment
UC1131252
Bromus madritensis subsp. rubens
H. C. Lee
1936-3-3
449
San Luis Obispo
1/2 mi s of Reeds
152
Comment
UCD59632
Bromus rubens
A. A. Beetle
1942-4-25
3233
San Luis Obispo
San Luis Obispo Co.: Rt. 101, Arroyo Grande.
Comment
UCR162155
Bromus rubens
George K. Helmkamp, E. A. Helmkamp
2005-2-14
8908
San Luis Obispo
Central Coast, Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive
122
Comment
SACT000732
Calamagrostis nutkaensis
Malcolm Nobs, S. Smith
1949-6-23
San Luis Obispo
Strongly caespitose, clumps 1-2 feet across. Bog near Highway 1, ca. 4 miles south of Arroyo Grande.
Comment
UC1136621
Calandrinia ciliata
N. K. Carlson
1936-3-18
149
San Luis Obispo
0.5 mi se Newsome Springs (Plot 3); Arroyo Grande Quadrangle
137
Comment
UC3360
Calochortus albus
Alice King
May 1895
San Luis Obispo
Arroyo Grande
Comment
UCR16299
Calochortus albus
Val Chase
1965-4-16
88
San Luis Obispo
4 mi south of Edna on the road from Edna to Arroyo Grande
76
Comment
UC72479
Calochortus clavatus
Miss M. Alice King
Jun 1895
San Luis Obispo
Arroyo Grande
Comment
OBI82458
Calochortus obispoensis
David J. Keil, with V. L. Holland
2015-6-19
33257
San Luis Obispo
Rural area north of Arroyo Grande between Corbett Canyon Road and Highway 227, accessed via Dairy Lane and a private drive
125
Comment
UC75769
Calochortus obispoensis
Flora Sowe
1895-1-1
San Luis Obispo
Arroyo Grande
Comment
UC1123619
Calystegia macrostegia subsp. cyclostegia
N. K. Carlson
1936-3-18
144
San Luis Obispo
.5 mi se Newsom Springs (Plot 3); Arroyo Grande Quad., se of Newsom Springs
Comment
UC73552
Calystegia macrostegia subsp. cyclostegia
Miss M. Alice King
1895-1
San Luis Obispo
Arroyo Grande
Comment
UC73520
Calystegia subacaulis subsp. episcopalis
Miss M. Alice King
June, 1895
San Luis Obispo
Arroyo Grande
Comment
OBI67028
Camissonia campestris subsp. obispoensis
David J. Keil
2000-8-2
29047
San Luis Obispo
Arroyo Grande area. Ca. 0.5 miles off Lopez Drive on Hondonada Road.
Comment
UCR132015
Camissonia cheiranthifolia
George K. Helmkamp
2003-7-31
8064
San Luis Obispo
Central Coast, west edge of Nipomo Hill at junction of Cienaga Rd. and Valley View Road
15
Comment
UCR132039
Camissonia cheiranthifolia subsp. cheiranthifolia
George K. Helmkamp
2003-7-29
8035 B
San Luis Obispo
Central Coast, 0.6 mi south of Nipomo Hill in Arroyo Grande area
46
Comment
UCR132064
Camissonia micrantha
George K. Helmkamp
2003-7-29
8039 B
San Luis Obispo
Central Coast, 0.6 mi south of Nipomo Hill in Arroyo Grande area
46
Comment
UCR158181
Camissonia micrantha
George K. Helmkamp
2004-6-9
8615
San Luis Obispo
Central Coast, Mesa Dunes Mobile Home Park along Mesa View Dr (Calif. Hwy 1), 0.3 mi south of Halcyon Rd.
76
Comment
UCR158740
Camissonia micrantha
George K. Helmkamp, E. A. Helmkamp
2005-4-17
9370
San Luis Obispo
Central Coast, Corbett Canyon, 2.3 miles north of Calif. Hwy 227 in Arroyo Grande
81
Comment
IRVC29046
Camissonia strigulosa
G. K. Helmkamp
2003-9-10
8135
San Luis Obispo
0.6 mi S of Nipomo Hill in Arroyo Grande area Central Coast
46
Comment
RSA709064
Camissonia strigulosa
George K. Helmkamp, E. A. Helmkamp
2005-4-17
9365
San Luis Obispo
Central Coast: Corbett canyon, 2.3 miles N of Hwy CA-227 in Arroyo Grande.
81
Comment
SD193318
Camissonia strigulosa
G. K. Helmkamp, E. A. Helmkamp
2005-4-17
9365
San Luis Obispo
Corbett Canyon, 2.3 miles north of Highway CA 227 in Arroyo Grande.
81
Comment
SEINET1007996
Camissonia strigulosa
G. K. Helmkamp, E. A. Helkamp
2005-1
9365
San Luis Obispo
Central Coast: Corbett Canyon, 2.3 miles north of Hwy CA-227 in Arroyo Grande.
81
Comment
UCR134696
Camissonia strigulosa
George K. Helmkamp
2003-9-10
8135
San Luis Obispo
Central Coast, 0.6 mi south of Nipomo Hill in Arroyo Grande area
46
Comment
UCR158735
Camissonia strigulosa
George K. Helmkamp, E. A. Helmkamp
2005-4-17
9365
San Luis Obispo
Central Coast, Corbett Canyon, 2.3 miles north of Calif. Hwy 227 in Arroyo Grande
81
Comment
SD186263
Camissoniopsis cheiranthifolia
G. K. Helmkamp
2003-7-31
8064
San Luis Obispo
West edge of Nipomo Hill at junction of Cienaga Rd. and Valley View Road.
14
Comment
SD186264
Camissoniopsis cheiranthifolia subsp. cheiranthifolia
G. K. Helmkamp
2003-7-29
8035 B
San Luis Obispo
0.6 mile south of Nipomo Hill in Arroyo Grande area.
46
Comment
OBI67029
Camissoniopsis micrantha
David J. Keil
2000-8-2
29046
San Luis Obispo
Arroyo Grande area. Ca. 0.5 miles off Lopez Drive on Hondonada Road.
Comment
UC20649
Camissoniopsis micrantha
unknown
1861-4-13
446
San Luis Obispo
Arroyo Grande
Comment
UC76449
Camissoniopsis micrantha
Miss M. Alice King
May 1895
San Luis Obispo
Arroyo Grande
Comment
OBI80980
Capsella bursa-pastoris
Sammy Bueche, Anthony Campos, Mia Stornetta, Jessie Poletti, John Corotis, Andy Catanio
2015-4-24
9
San Luis Obispo
Strother Park. Hillside that gradually slopes into a flat area along the bank of teh Arroyo Grande Creek.
14
Comment
UC1126876
Capsella bursa-pastoris
N. K. Carlson
1936-3-18
135
San Luis Obispo
.6 mi ssw of Picacho
99
Comment
UCR159225
Cardamine hirsuta
George K. Helmkamp, E. A. Helmkamp
2004-7-12
8754
San Luis Obispo
Central Coast, Nipomo Mesa. Mesa Dunes Mobile Home Park along Mesa View Dr. 0.2 mi south of Jct with Halcyon Rd. (SE of Oceano)
76
Comment
UCR132028
Cardamine oligosperma
George K. Helmkamp
2003-9-10
8136
San Luis Obispo
Central Coast, 0.6 mi south of Nipomo Hill in Arroyo Grande area
46
Comment
UCR141938
Cardamine pensylvanica
George K. Helmkamp
2004-1-9
8236
San Luis Obispo
Central Coast, Along Highway Calif. Hwy 1, 0.6 mi south of Nipomo Hill in the Arroyo Grande area
46
Comment
UCR160306
Cardamine pensylvanica
George K. Helmkamp
2004-5-9
8571
San Luis Obispo
Central Coast, Mesa Dunes Mobile Home Park along Mesa View Dr. (Calif. Hwy 1), 0.2 mi south of the jct of Halcyon Rd.
61
Comment
UC75798
Cardionema ramosissimum
Miss M. Alice King
May, 1895
San Luis Obispo
Arroyo Grande
Comment
CAS-BOT-BC34409
Carex cusickii
Alice Eastwood; John Thomas Howell
1937-4-30
4160
San Luis Obispo
Upper Arroyo Grande.
Comment
SBBG59287
Carex cusickii
R. Hoffmann
1930-4-18
San Luis Obispo
Arroyo Grande
Comment
SBBG59288
Carex cusickii
R. Hoffmann
1930-4-18
San Luis Obispo
Arroyo Grande
Comment
SBBG57167
Carex pansa
R. Hoffmann
1930-4-19
San Luis Obispo
Arroyo Grande
Comment
SBBG57170
Carex pansa
R. Hoffmann
1930-4-18
San Luis Obispo
Arroyo Grande
Comment
CAS-BOT-BC118918
Carex pellita
Alice Eastwood; John Thomas Howell
1937-4-30
4158
San Luis Obispo
Upper Arroyo Grande
Comment
SBBG57175
Carex praegracilis
R. Hoffmann
1930-4-18
San Luis Obispo
Arroyo Grande
Comment
RSA88830
Carex subbracteata
Alice Eastwood, John Thomas Howell
1937-4-30
4159
San Luis Obispo
Upper Arroyo Grande.
Comment
CAS-BOT-BC116843
Carex subbracteata var. subbracteata
Alice Eastwood; John Thomas Howell
1937-4-30
4159
San Luis Obispo
Upper Arroyo Grande
Comment
SDSU6426
Carthamus creticus
D. F. Howe
1967-8-14
4374
San Luis Obispo
Arroyo Grande.
37
Comment
SD67306
Carthamus lanatus
Darley F. Howe
1967-8-14
4374
San Luis Obispo
Arroyo Grande
Comment
UC1032430
Castilleja affinis subsp. affinis
H. C. Lee
1936-2-17
403
San Luis Obispo
Picacho Hill; San Luis Obispo National Forest, Arroyo Grande Quad.
228
Comment
OBI9344
Castilleja exserta
Robert F. Hoover
1967-4-12
10437
San Luis Obispo
Upper Arroyo Grande
Comment
UC1315011
Castilleja exserta
R. F. Hoover
1967-4-12
10437
San Luis Obispo
Upper Arroyo Grande
Comment
UCR146280
Ceanothus
Roman Gankin, W. R. Hildreth
1964-7-9
824683
San Luis Obispo
Upper Arroyo Grande Canyon
67
Comment
GH349152
Ceanothus cuneatus
W. H. Brewer
1860-1-1
480
Unknown
Arroyo Grande
Comment
UC18286
Ceanothus cuneatus var. cuneatus
W. H. Brewer
1861-4-13
440
San Luis Obispo
Arroyo Grande
Comment
UCR141940
Ceanothus gloriosus subsp. gloriosus
George K. Helmkamp
2004-1-9
8238
San Luis Obispo
Central Coast, Along Highway Calif. Hwy 1, 0.6 mi south of Nipomo Hill in the Arroyo Grande area
46
Comment
OBI10490
Ceanothus impressus
Robert F. Hoover
1962-1-12
7
San Luis Obispo
Arroyo Grande
Comment
UC1070596
Ceanothus impressus
H. C. Lee
1936-3-3
446
San Luis Obispo
3/4 mi s Reeds; Arroyo Grande quad.
182
Comment
UC1070600
Ceanothus impressus
H. S. Yates
1936-3-24
5376
San Luis Obispo
3/4 mi sw Reeds; Arroyo Grande quad.
152
Comment
UC54829
Ceanothus oliganthus var. sorediatus
Mrs. R. W. Summers
1886-1
San Luis Obispo
Arroyo Grande
Comment
UC1119127
Centaurea melitensis
N. K. Carlson
1936-3-19
159
San Luis Obispo
1.9 mi ese of Picacho; Arroyo Grande
175
Comment
UC456206
Centaurium davyi
I. J. Condit
1909-7-6
San Luis Obispo
Arroyo Grande
Comment
CDA26021
Cerastium fontanum
David J. Keil
2003-8-23
30284
San Luis Obispo
Arroyo Grande. Lawn area in ornamental plantings around Wal-Mart Shopping Center (1168 West branch Street, Arroyo Grande).
Comment
SD234350
Cerastium fontanum subsp. vulgare
G. K. Helmkamp
2004-5-9
8573
San Luis Obispo
Central Coast: Mesa Dunes Mobile Home Park along Mesa View Dr. (Hwy CA-1), 0.2 mi S of the jct of Halcyon Rd (Oceano 7.5'Q)
60
Comment
UCR160287
Cerastium fontanum subsp. vulgare
George K. Helmkamp
2004-5-9
8573
San Luis Obispo
Central Coast, Mesa Dunes Mobile Home Park along Mesa View Dr. (Calif. Hwy 1), 0.2 mi south of the jct of Halcyon Rd.
61
Comment
UC72964
Cercocarpus betuloides var. betuloides
Miss M. Alice King
Apr. 1895
San Luis Obispo
Arroyo Grande
Comment
UC75836
Chaenactis glabriuscula var. glabriuscula
Miss M. Alice King
1895-4-1
San Luis Obispo
Arroyo Grande
Comment
CAS-BOT-BC277609
Chaenactis glabriuscula var. lanosa
R. F. Hoover
1969-5-3
11300
San Luis Obispo
Upper Arroyo Grande
Comment
OBI16845
Chaenactis glabriuscula var. lanosa
Robert F. Hoover
1969-5-3
11300
San Luis Obispo
Upper Arroyo Grande
Comment
UC31025
Chaenactis glabriuscula var. lanosa
W. H. Brewer
1861-4-13
444
San Luis Obispo
Arroyo Grande
Comment
OBI82365
Chenopodium
David J. Keil
2015-9-21
33403
San Luis Obispo
Arroyo Grande. Vacant lot at northwestern corner of intersection of Woodland Drive and Fair Oaks Avenue.
25
Comment
IRVC29230
Chenopodium berlandieri
G. K. Helmkamp, E. A. Helmkamp
2004-10-8
8851
San Luis Obispo
Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive and Arroyo Grande Creek Central Coast
136
Comment
SD186163
Chenopodium berlandieri
G. K. Helmkamp
2003-7-29
8040 B
San Luis Obispo
0.6 mile south of Nipomo Hill in Arroyo Grande area.
46
Comment
UC1136384
Chenopodium californicum
N. K. Carlson
1936-3-19
166
San Luis Obispo
2.2 mi ne Los Berros (Plot 6); Arroyo Grande Quadrangle
Comment
OBI82357
Chenopodium glaucum
David J. Keil
2015-9-21
33405
San Luis Obispo
Arroyo Grande. Fair Oaks Avenue at Fred Grieb bridge over Arroyo Grande Creek
25
Comment
UCR160305
Chenopodium multifidum
George K. Helmkamp
2004-5-9
8572
San Luis Obispo
Central Coast, Mesa Dunes Mobile Home Park along Mesa View Dr. (Calif. Hwy 1), 0.2 mi south of the jct of Halcyon Rd.
61
Comment
UCR146970
Chenopodium murale
George K. Helmkamp, E. A. Helmkamp
2004-10-8
8851
San Luis Obispo
Central Coast, Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive and Arroyo Grande Creek
136
Comment
UCR132041
Chenopodium strictum
George K. Helmkamp
2003-7-29
8040 B
San Luis Obispo
Central Coast, 0.6 mi south of Nipomo Hill in Arroyo Grande area
46
Comment
UCR132063
Chenopodium strictum
George K. Helmkamp
2003-7-29
8041 B
San Luis Obispo
Central Coast, 0.6 mi south of Nipomo Hill in Arroyo Grande area
46
Comment
UCR132545
Chenopodium strictum
George K. Helmkamp
2003-8-18
8094
San Luis Obispo
Central Coast, S of Arroyo Grande; along Mesa View Dr., 0.4 mi south of the junction of Cienaga and Valley View Rd.
30
Comment
RSA392636
Chorizanthe angustifolia
Ralph Hoffman
1930-4-18
s.n.
San Luis Obispo
Arroyo Grande
Comment
UC52640
Chorizanthe angustifolia
Alice King
May 1895
San Luis Obispo
Arroyo Grande
Comment
UC72617
Chorizanthe angustifolia
Miss M. Alice King
June 1895
San Luis Obispo
Arroyo Grande
Comment
OBI82448
Chorizanthe diffusa
David J. Keil, with V. L. Holland
2015-6-19
33254
San Luis Obispo
Rural area north of Arroyo Grande between Corbett Canyon Road and Highway 227, accessed via Dairy Lane and a private drive
125
Comment
OBI79992
Chorizanthe obovata
David J. Keil, with V. L. Holland
2013-6-12
31792
San Luis Obispo
Arroyo Grande area off Lopez Drive in vicinity of Sweet Springs Mobile Home Park
Comment
UC72679
Chorizanthe obovata
Miss M. Alice King
June, 1895
San Luis Obispo
Arroyo Grande
Comment
UC72685
Chorizanthe obovata
Miss M. Alice King
June, 1895
San Luis Obispo
Arroyo Grande
Comment
UC72680
Chorizanthe palmeri
Miss M. Alice King
1895-1
San Luis Obispo
near Arroyo Grande; near Arroyo Grande
Comment
OBI79993
Chorizanthe staticoides
David J. Keil, with V. L. Holland
2013-6-12
31793
San Luis Obispo
Arroyo Grande area off Lopez Drive in vicinity of Sweet Springs Mobile Home Park
Comment
UC52616
Chorizanthe staticoides
Alice King
June 1895
San Luis Obispo
Arroyo Grande
Comment
UCR132049
Chrysanthemum coronarium
George K. Helmkamp
2003-7-31
8062
San Luis Obispo
Central Coast, west edge of Nipomo Hill at junction of Cienaga Rd. and Valley View Road
15
Comment
UC76426
Cirsium occidentale var. occidentale
Miss M. Alice King
1895-6-1
San Luis Obispo
Arroyo Grande
Comment
UCR147245
Clarkia amoena
George K. Helmkamp, E. A. Helmkamp
2004-8-15
8789
San Luis Obispo
Central Coast, Nipomo Mesa. Mesa Dunes Mobile Home Park along Mesa View Dr., 0.2 mi S. of jct. of Halcyon Rd., SE of Oceano
76
Comment
UC76445
Clarkia cylindrica subsp. cylindrica
Lizzie Cook
May 1895
San Luis Obispo
Arroyo Grande
Comment
UC20316
Clarkia epilobioides
Alice King
May 1895
San Luis Obispo
Arroyo Grande
Comment
UC54875
Clarkia purpurea subsp. quadrivulnera
Mrs. R. W. Summers
1886-5-21
2000
San Luis Obispo
Arroyo Grande
Comment
UC54882
Clarkia purpurea subsp. quadrivulnera
Mrs. R. W. Summers
1886-5-21
San Luis Obispo
Arroyo Grande
Comment
UC76448
Clarkia speciosa
Miss M. Alice King
May, 1895
San Luis Obispo
Arroyo Grande
Comment
CAS-BOT-BC165241
Clarkia speciosa subsp. immaculata
Mark A. Elvin; LynneDee Althouse
2006-5-25
4915
San Luis Obispo
Central Coastal: NW portion of Arroyo Grande; James Way X La Canada
61
Comment
IRVC29495
Clarkia speciosa subsp. immaculata
Mark A. Elvin, LynneDee Althouse
2006-5-25
4915
San Luis Obispo
NW portion of Arroyo Grande; James Way X La Canada. Central Coastal
61
Comment
JEPS720
Clarkia speciosa subsp. immaculata
Alice King
May 1895
San Luis Obispo
Arroyo Grande
Comment
OBI67031
Clarkia speciosa subsp. immaculata
David J. Keil
2000-1
San Luis Obispo
Comment
UC20023
Clarkia unguiculata
Alice King
May 1895
San Luis Obispo
Arroyo Grande
Comment
IRVC28950
Clematis ligusticifolia
G. K. Helmkamp
2003-9-21
8165
San Luis Obispo
Los Berros Rd, 0.9 mi SE of El Campo Rd., SE of Arroyo Grande Central Coast
46
Comment
OBI22938
Clematis ligusticifolia
David J. Keil
1979-10-27
13639
San Luis Obispo
E of Arroyo Grande along rd to Lopez Lake, ca 1 mi E of Orcutt Rd
Comment
OBI81526
Clematis ligusticifolia
Jaymee Schienle, Kevin Allenstein, Tibo Smolders, Matt Wauters, Adriana Delucchi
2015-11-3
1
San Luis Obispo
Strothers Park.
Comment
UC75780
Clematis ligusticifolia
Miss M. Alice King
May, 1895
San Luis Obispo
Arroyo Grande
Comment
UCR135963
Clematis ligusticifolia
George K. Helmkamp
2003-9-21
8165
San Luis Obispo
Central Coast, Los Berros Rd, 0.9 mi SE of El Campo Rd., SE of Arroyo Grande
46
Comment
UC26583
Collinsia multicolor
Alice King
Apr 1895
San Luis Obispo
Arroyo Grande
Comment
UC75767
Conium maculatum
Miss M. Alice King
May 1895
San Luis Obispo
Arroyo Grande
Comment
UC456009
Convolvulus arvensis
I. J. Condit
1908-6-6
San Luis Obispo
Routzahn Seed Farm Arroyo Grande
Comment
UCR132053
Conyza bonariensis
George K. Helmkamp
2003-7-31
8051 B
San Luis Obispo
Central Coast, west edge of Nipomo Hill at junction of Cienaga Rd. and Valley View Road
15
Comment
IRVC29228
Conyza canadensis
G. K. Helmkamp, E. A. Helmkamp
2004-10-8
8848
San Luis Obispo
Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive and Arroyo Grande Creek Central Coast
136
Comment
UCR132763
Conyza canadensis
George K. Helmkamp
2003-7-29
8034 B
San Luis Obispo
Central Coast, 0.6 mi south of Nipomo Hill in Arroyo Grande area
46
Comment
UCR146966
Conyza canadensis
George K. Helmkamp, E. A. Helmkamp
2004-10-8
8848
San Luis Obispo
Central Coast, Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive and Arroyo Grande Creek
136
Comment
OBI80001
Cordylanthus rigidus
David J. Keil, with V. L. Holland
2013-6-12
31794
San Luis Obispo
Arroyo Grande area off Lopez Drive in vicinity of Sweet Springs Mobile Home Park
Comment
GH385562
Cornus occidentalis
W. H. Brewer
1860-1-1
434
Unknown
Arroyo Grande
Comment
UC21546
Cornus sericea subsp. sericea
W. H. Brewer
Apr 12 1861-Apr 13 1861
434
San Luis Obispo
Arroyo Grande
Comment Read comments Dec 23 2007
CDA43345
Cortaderia selloana
David J. Keil
2011-11-9
31181
San Luis Obispo
Nipomo Mesa south of Arroyo Grande, Highway 1 just north of intersection with Doty Drive.
0
Comment
OBI79127
Cortaderia selloana
David J. Keil
2011-11-9
31181
San Luis Obispo
Nipomo Mesa south of Arroyo Grande, Highway 1 just north of intersection with Doty Drive
Comment
UCR161901
Cotula australis
George K. Helmkamp, E. A. Helmkamp
2005-2-14
8902
San Luis Obispo
Central Coast, Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive
122
Comment
SEINET7063682
Cotula coronopifolia
A. G. Vestal
1947-4-16
s.n.
San Luis Obispo
Above Arroyo Grande on Rotue 227 in Carpenter Canyon. UTM Zone 10, 720822mE, 3892982mN. (WGS84/NAD83).
108
Comment
UCSC000796
Cotula coronopifolia
California Polytechnic School
2001-1-31
s.n.
San Luis Obispo
Arroyo Grande
Comment
CDA26371
Crepis capillaris
David J. Keil
2003-8-23
30282
San Luis Obispo
Arroyo Grande. Lawn area in ornamental plantings around Wal-Mart Shopping Center (1168 West branch Street, Arroyo Grande).
Comment
OBI68364
Crepis capillaris
David J. Keil
2003-8-23
30282
San Luis Obispo
Arroyo Grande. Lawn area in ornamental plantings around Wal-Mart Shopping Center (1168 W Branch Street, Arroyo Grande). Vicinity of 35.1277 deg. N x 120.5974 deg. W
49
Comment
UC1927697
Crepis capillaris
David Keil
2003-8-23
30282
San Luis Obispo
Arroyo Grande. Lawn area in ornamental plantings around Wal-Mart Shopping Center (1168 W Branch Street, Arroyo Grande).
Comment
CDA17519
Croton californicus
Austin Griffiths
1980-8-29
s.n.
San Luis Obispo
Central Coast; Arroyo Grande, behind Fair Oaks alleys, 1051 Grand Ave. in parking lot near SE edge.
Comment
UC30122
Croton californicus
Alice King
Apr. 1895
San Luis Obispo
Arroyo Grande
Comment
JEPS67542
Cryptantha clevelandii
W. L. Jepson
1941-4-17
20263
San Luis Obispo
Arroyo Grande
Comment
OBI82456
Cryptantha clevelandii
David Keil, with V. L. Holland
2015-6-19
33255
San Luis Obispo
Rural area north of Arroyo Grande between Corbett Canyon Road and Highway 227, accessed via Dairy Lane and a private drive
110
Comment
UCR140156
Cryptantha clevelandii
George K. Helmkamp
2004-4-1
8417
San Luis Obispo
Central Coast, Nipomo Mesa; Mesa Dunes Mobile Home Park along Mesa View Dr., 0.2 mi south of Halcyon Rd.
76
Comment
SD178184
Cryptantha leiocarpa
G. K. Helmkamp
2004-4-1
8417
San Luis Obispo
Central Coast: Nipomo Mesa, Mesa Dunes Mobile Home Park along Mesa View Dr., 0.2 mi south of Halcyon Rd.
75
Comment
OBI20778
Cryptantha microstachys
Robert F. Hoover
1967-4-12
10435
San Luis Obispo
Upper Arroyo Grande
Comment
OBI82447
Cryptantha microstachys
David J. Keil, with V. L. Holland
2015-6-19
33253
San Luis Obispo
Rural area north of Arroyo Grande between Corbett Canyon Road and Highway 227, accessed via Dairy Lane and a private drive
125
Comment
UC73517
Cuscuta subinclusa
Miss M. Alice King
1895-1
San Luis Obispo
Arroyo Grande
Comment
OBI35105
Cyperus eragrostis
Eric Wise
1981-6-22
642
San Luis Obispo
Aquatic Tracheophytes of San Luis Obispo County. Lopez Water Treatment Reservoir
Comment
UCR159299
Cyperus esculentus
George K. Helmkamp, E. A. Helmkamp
2004-7-12
8755
San Luis Obispo
Central Coast, Nipomo Mesa. Mesa Dunes Mobile Home Park along Mesa View Dr. 0.2 mi south of Jct with Halcyon Rd. (SE of Oceano)
76
Comment
UCR147238
Datura stramonium
George K. Helmkamp, E. A. Helmkamp
2004-10-8
8834
San Luis Obispo
Central Coast, Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive and Arroyo Grande Creek
136
Comment
CAS-BOT-BC299362
Deinandra increscens subsp. increscens
H. M. Hall
1931-8-8
13215
San Luis Obispo
Two miles east of Oceano
Comment
JEPS38273
Deinandra increscens subsp. increscens
W. L. Jepson
1940-10-3
20155
San Luis Obispo
Arroyo Grande
Comment
JEPS38274
Deinandra increscens subsp. increscens
W. L. Jepson
1940-10-3
20154
San Luis Obispo
Arroyo Grande
Comment
UC1069554
Deinandra increscens subsp. increscens
N. K. Carlson
1936-3-18
122
San Luis Obispo
1 mi e Nipomo Hill; Arroyo Grande Quad.
Comment
UC1069555
Deinandra increscens subsp. increscens
N. K. Carlson
1936-3-18
143
San Luis Obispo
0.5 mi se Newsome Springs; Arroyo Grande
137
Comment
UC134615
Deinandra increscens subsp. increscens
K. Brandegee
1885-7-4
San Luis Obispo
Arroyo Grande
Comment
UC1792832
Deinandra increscens subsp. increscens
G. K. Helmkamp
2003-10-24
8215
San Luis Obispo
Central Coast: El Campo Rd 0.1 mi E of Los Berros Rd, SE of Arroyo Grande
Comment
UC89070
Deinandra increscens subsp. increscens
M. K. Curran
1885-1-1
San Luis Obispo
at Arroyo Grande Arroyo Grande
Comment
OBI79962
Delosperma litorale
David J. Keil, with V. L. Holland
2013-6-12
31796
San Luis Obispo
Arroyo Grande area off Lopez Drive in vicinity of Sweet Springs Mobile Home Park
Comment
UC9134
Delphinium californicum
Alice King
May 1895
San Luis Obispo
Arroyo Grande
Comment
UC9240
Delphinium parryi
Alice King
Apr. 1895
San Luis Obispo
Arroyo Grande
Comment
UC1126032
Delphinium parryi subsp. blochmaniae
H. C. Lee
1936-2-21
412
San Luis Obispo
1 mile N of Los Berros
76
Comment
UC9184
Delphinium parryi subsp. parryi
Alice King
June 1895
San Luis Obispo
Arroyo Grande
Comment
UC1296249
Delphinium umbraculorum
R. F. Hoover
1957-4-11
8380
San Luis Obispo
headwaters Arroyo Grande
Comment
OBI11822
Dendromecon rigida
Mrs. R. F. Hoover
1962-1-13
6
San Luis Obispo
Arroyo Grande
Comment
UC1126343
Dendromecon rigida
H. C. Lee
1936-3-3
448
San Luis Obispo
1/2 mi s Reeds; Arroyo Grande Quadrangle
Comment
UC1133899
Dichelostemma capitatum
N. K. Carlson
1936-3-18
148
San Luis Obispo
0.5 mi se Newsome Springs; Arroyo Grande Quad.
137
Comment
UC1133905
Dichelostemma capitatum
H. C. Lee
1936-2-15
394
San Luis Obispo
1 mi se Arroyo Grande; San Luis Obispo National Forest, Arroyo Grande Quad.
91
Comment
OBI82560
Dichondra
David J. Keil
2015-9-21
33402
San Luis Obispo
Arroyo Grande. 620 Cerro Vista Circle
25
Comment
CDA26004
Digitaria sanguinalis
David J. Keil
2003-8-23
30285
San Luis Obispo
Arroyo Grande. Lawn area in ornamental plantings around Wal-Mart Shopping Center (1168 West branch Street, Arroyo Grande).
Comment
UCR132045
Digitaria sanguinalis
George K. Helmkamp
2003-7-31
8052 B
San Luis Obispo
Central Coast, west edge of Nipomo Hill at junction of Cienaga Rd. and Valley View Road
15
Comment
UCR140077
Dimorphotheca sinuata
George K. Helmkamp
2004-4-1
8413
San Luis Obispo
Central Coast, Nipomo Mesa; Mesa Dunes Mobile Home Park along Mesa View Dr., 0.2 mi south of Halcyon Rd.
76
Comment
CAS-BOT-BC152489
Diplacus aurantiacus
R. F. Hoover
1967-4-12
10438
San Luis Obispo
Upper Arroyo Grande
Comment
OBI79994
Dittrichia graveolens
David J. Keil, with V. L. Holland
2013-6-12
31800
San Luis Obispo
Arroyo Grande area off Lopez Drive in vicinity of Sweet Springs Mobile Home Park
Comment
UC570364
Dodecatheon clevelandii subsp. insulare
H. C. Lee
1936-2-13
397
San Luis Obispo
1 mi se Arroyo Grande; Arroyo Grande Quad.
91
Comment
UC75731
Dodecatheon clevelandii subsp. insulare
Miss M. Alice King
March 1895
San Luis Obispo
Arroyo Grande
Comment
CDA25902
Drosanthemum floribundum
David J. Keil
2000-8-2
29048
San Luis Obispo
Arroyo Grande area. Circa 0.5 miles off Lopez Drive on Hondonada Road.
0
Comment
OBI67032
Drosanthemum floribundum
David J. Keil
2000-8-2
29048
San Luis Obispo
Arroyo Grande area. Ca. 0.5 miles off Lopez Drive on Hondonada Road.
Comment
UCR132027
Echinochloa colona
George K. Helmkamp
2003-9-10
8137
San Luis Obispo
Central Coast, 0.6 mi south of Nipomo Hill in Arroyo Grande area
46
Comment
UCR147227
Echinochloa crus-galli
George K. Helmkamp, E. A. Helmkamp
2004-8-15
8787
San Luis Obispo
Central Coast, Nipomo Mesa. Mesa Dunes Mobile Home Park along Mesa View Dr., 0.2 mi S. of jct. of Halcyon Rd., SE of Oceano
76
Comment
CHSC30535
Ehrharta calycina
T. B. Devine
1980-4-5
671
San Luis Obispo
Along frontage road just E. of Hwy. 101 ca 1 mi. S. of Arroya Grande. Roadcut beside pasture.
Comment
RSA706639
Ehrharta calycina
L. M. Prince, J. Travis Columbus, et al.
2002-4-28
2 -333
San Luis Obispo
CA Rte. 101, 7.2 km north oof exit for Nipomo (Tefft St.)
100
Comment
UCR17238
Ehrharta calycina
E. Turula
1975-3-23
51
San Luis Obispo
Central Coast, Arroyo Grande; Oak Park Road, 0.5 mi west of Ormonde Road
122
Comment
OBI79968
Ehrharta erecta
David J. Keil, with V. L. Holland
2013-6-12
31804
San Luis Obispo
Arroyo Grande area off Lopez Drive in vicinity of Sweet Springs Mobile Home Park
Comment
OBI35160
Eleocharis macrostachya
Eric Wise
1981-6-22
644
San Luis Obispo
Aquatic Tracheophytes of San Luis Obispo County. Lopez Water Treatment Reservoir
Comment
IRVC28934
Epilobium brachycarpum
G. K. Helmkamp
2003-10-24
8220
San Luis Obispo
El Campo Rd 0.1 mi E of Los Berros Rd, SE of Arroyo Grande Central Coast
46
Comment
SD178209
Epilobium brachycarpum
G. K. Helmkamp
2003-10-24
8220
San Luis Obispo
Central coast: El Campo Rd 0.1 mi east of Los Berros Rd, southeast of Arroyo Grande. Disturbed roadside in farmland.
46
Comment
UCR131912
Epilobium brachycarpum
George K. Helmkamp
2003-10-24
8220
San Luis Obispo
Central Coast, El Campo Rd 0.1 mi east of Los Berros Rd, SE of Arroyo Grande
46
Comment
UCR132056
Epilobium ciliatum subsp. ciliatum
George K. Helmkamp
2003-7-31
8056
San Luis Obispo
Central Coast, west edge of Nipomo Hill at junction of Cienaga Rd. and Valley View Road
15
Comment
OBI37138
Epilobium ciliatum subsp. watsonii
Eric Wise
1981-6-22
639
San Luis Obispo
Lopez Water Treatment Reservoir
Comment
OBI37140
Epilobium ciliatum subsp. watsonii
Eric Wise
1981-6-22
639
San Luis Obispo
Lopez Water Treatment Reservoir
Comment
UC454595
Epilobium densiflorum
I. J. Condit
1908-7-6
San Luis Obispo
Arroyo Grande
Comment
OBI26819
Eragrostis curvula
David J. Keil
1981-3-7
14286
San Luis Obispo
Ca. 1 mi E of jctn with Calif hwy 227 along Lopez Lake Rd
Comment
OBI44934
Eragrostis curvula
David J. Keil
1994-7-20
18310
San Luis Obispo
E of Arroyo Grande along Lopez Lake Rd at jctn with Cecchetti Rd
Comment
UCR38981
Eragrostis curvula var. curvula
David J. Keil
1981-3-7
14286
San Luis Obispo
c. 1 mile east of junction with California Hwy 227 along Lopez Lake Road
Comment
CAS-BOT-BC292906
Ericameria ericoides
R. F. Hoover
1946-10-18
6500
San Luis Obispo
Upper Arroyo Grande
Comment
OBI16563
Ericameria ericoides
Robert F. Hoover
1946-10-18
6500
San Luis Obispo
Upper Arroyo Grande
Comment
SD186081
Erigeron blochmaniae
G. K. Helmkamp
2003-7-29
8044 B
San Luis Obispo
0.6 mile south of Nipomo Hill in Arroyo Grande area.
46
Comment
UCR132043
Erigeron blochmaniae
George K. Helmkamp
2003-7-29
8044 B
San Luis Obispo
Central Coast, 0.6 mi south of Nipomo Hill in Arroyo Grande area
46
Comment
UC31479
Erigeron foliosus var. franciscensis
unknown
San Luis Obispo
Arroyo Grande
Comment
OBI82445
Erigeron sanctarum
David J. Keil, with V. L. Holland
2015-6-19
33252
San Luis Obispo
Rural area north of Arroyo Grande between Corbett Canyon Road and Highway 227, accessed via Dairy Lane and a private drive
125
Comment
CDA43318
Erigeron sumatrensis
David J. Keil
2010-12-8
30967
San Luis Obispo
Along Hondonada Road northwest of junction with Lopez Drive, east of Arroyo Grande.
Comment
OBI75293
Erigeron sumatrensis
David J. Keil
2010-12-8
30967
San Luis Obispo
Along Hondonada Road nw of junction with Lopez Drive, east of Arroyo Grande
74
Comment
SD186294
Eriogonum fasciculatum var. fasciculatum
G. K. Helmkamp
2003-7-29
8030 B
San Luis Obispo
Central Coast: 0.6 mi S of Nipomo Hill in Arroyo Grande area
46
Comment
UCR132289
Eriogonum fasciculatum var. foliolosum
George K. Helmkamp
2003-7-29
8030 B
San Luis Obispo
Central Coast, 0.6 mi south of Nipomo Hill in Arroyo Grande area
46
Comment
UCR132760
Eriogonum fasciculatum var. foliolosum
George K. Helmkamp
2003-7-29
8029 B
San Luis Obispo
Central Coast, 0.6 mi south of Nipomo Hill in Arroyo Grande area
46
Comment
OBI80007
Eriogonum gracile
David J. Keil, with V. L. Holland
2013-6-12
31795
San Luis Obispo
Arroyo Grande area off Lopez Drive in vicinity of Sweet Springs Mobile Home Park
Comment
UC1118298
Eriophyllum confertiflorum var. confertiflorum
H. C. Lee
1936-3-3
447
San Luis Obispo
0.75 mi s of Reed's; Arroyo Grande Quadrangle
182
Comment
UC31710
Eriophyllum confertiflorum var. confertiflorum
Alice King
1895-5-1
San Luis Obispo
Arroyo Grande
Comment
UC31741
Eriophyllum multicaule
Alice King
1895-5-1
San Luis Obispo
Arroyo Grande
Comment
RSA709061
Erodium botrys
George K. Helmkamp, E. A. Helmkamp
2005-4-17
9366
San Luis Obispo
Central Coast: Corbett canyon, 2.3 miles N of Hwy CA-227 in Arroyo Grande.
81
Comment
SD193299
Erodium botrys
G. K. Helmkamp, E. A. Helmkamp
2005-4-17
9366
San Luis Obispo
Corbett Canyon, 2.3 miles north of Highway CA 227 in Arroyo Grande.
81
Comment
UC1130252
Erodium botrys
N. K. Carlson
1936-3-19
179
San Luis Obispo
1.6 mi nnw Arroyo Grande; Arroyo Grande Quad.
60
Comment
UCR132054
Erodium botrys
George K. Helmkamp
2003-7-31
8053 B
San Luis Obispo
Central Coast, west edge of Nipomo Hill at junction of Cienaga Rd. and Valley View Road
15
Comment
UCR158736
Erodium botrys
George K. Helmkamp, E. A. Helmkamp
2005-4-17
9366
San Luis Obispo
Central Coast, Corbett Canyon, 2.3 miles north of Calif. Hwy 227 in Arroyo Grande
81
Comment
UC1130279
Erodium cicutarium
N. K. Carlson
1936-3-19
157
San Luis Obispo
1.9 mi ese Picacho; Arroyo Grande Quad.
175
Comment
SEINET1004403
Erodium moschatum
George K. Helmkamp
2004-1
8299
San Luis Obispo
Central Coast: Mesa Dunes Mobile Home Park, along Mesa View Dr. (Hwy CA-1), 0.2 mi S of the jct with Halcyon Rd.
61
Comment
UC1130320
Erodium moschatum
N. K. Carlson
1936-3-18
138
San Luis Obispo
0.6 mi ssw Picacho; Arroyo Grande Quad.
99
Comment
UCR140133
Erodium moschatum
George K. Helmkamp
2004-2-19
8299
San Luis Obispo
Central Coast, Mesa Dunes Mobile Home Park, along Mesa View Dr (Calif. Hwy 1), 0.2 mi south of the jct with Halcyon Rd.
61
Comment
UC10534
Erysimum capitatum
Alice King
Mar 1895
San Luis Obispo
Arroyo Grande
Comment
UC75795
Eschscholzia caespitosa
Lizzie Cook
May 1895
San Luis Obispo
Arroyo Grande
Comment
UCR16452
Eschscholzia californica
Linda Hine
1967-3-25
s.n.
San Luis Obispo
Jct of Los Barros Road and Hwy 101
19
Comment
UCR132025
Eucalyptus globulus
George K. Helmkamp
2003-9-10
8139
San Luis Obispo
Central Coast, 0.6 mi south of Nipomo Hill in Arroyo Grande area
46
Comment
CDA34844
Eucalyptus viminalis
David J. Keil, V. L Holland
2009-6-16
30619
San Luis Obispo
Between San Luis Obispo and Arroyo Grande. Area southeast of intersection of California Highway 227 (Carpenter Canyon Road) and Noyes Road in vicinity of high tension line corridor.
Comment
OBI70809
Eucalyptus viminalis
David J. Keil, with V. L. Holland
2009-6-16
30619
San Luis Obispo
Between San Luis Obispo and Arroyo Grande. Area southeast of intersection of California Highway 227 (Carpenter Canyon Road) and Noyes Road in vicinity of high tension line corridor. Vic. 35 deg. 9.9'N x 120 deg. 34.9'W.
Comment
UC24007
Eucrypta chrysanthemifolia var. chrysanthemifolia
Brewer
1861-1
447
San Luis Obispo
Arroyo Grande
Comment Read comments Jul 6 2010
UCR161964
Eucrypta chrysanthemifolia var. chrysanthemifolia
George K. Helmkamp, E. A. Helmkamp
2005-2-14
8901
San Luis Obispo
Central Coast, Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive
122
Comment
UC1953190
Eugenia
David Keil
2010-7-21
30919
San Luis Obispo
Along County Oak Way, east of Arroyo Grande, between Thomas Hill Road and Lopez Drive
Comment
OBI82359
Euphorbia
David J. Keil
2015-9-23
33408
San Luis Obispo
Arroyo Grande. Fair Oaks Avenue at Fred Grieb bridge over Arroyo Grande Creek.
25
Comment
UCR158179
Euphorbia maculata
George K. Helmkamp
2004-6-9
8616
San Luis Obispo
Central Coast, Mesa Dunes Mobile Home Park along Mesa View Dr (Calif. Hwy 1), 0.3 mi south of Halcyon Rd.
76
Comment
UCR141942
Euphorbia peplus
George K. Helmkamp
2004-1-9
8239
San Luis Obispo
Central Coast, Along Highway Calif. Hwy 1, 0.6 mi south of Nipomo Hill in the Arroyo Grande area
46
Comment
UCR161965
Euphorbia peplus
George K. Helmkamp, E. A. Helmkamp
2005-2-14
8900
San Luis Obispo
Central Coast, Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive
122
Comment
UCR147236
Euphorbia serpens
George K. Helmkamp, E. A. Helmkamp
2004-10-8
8844
San Luis Obispo
Central Coast, Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive and Arroyo Grande Creek
136
Comment
CDA12274
Festuca arundinacea
G. F. Hrusa, J. Dinsdale
June 1989
s.n.
San Luis Obispo
Lancaster Street, Arroyo Grande Ca.
Comment
UCR140372
Festuca myuros
George K. Helmkamp
2004-3-19
8383
San Luis Obispo
Central Coast, Arroyo Grande, along Traffic Way south of Grand Ave. at Arroyo Grande Creek
24
Comment
UCR140397
Festuca myuros
George K. Helmkamp
2004-3-21
8387
San Luis Obispo
Central Coast, Mesa Dunes Mobile Home Park along Mesa View Dr., 0.2 mi south of the junction of Halcyon Rd., SE of Oceano
61
Comment
UCR158936
Festuca myuros
George K. Helmkamp, E. A. Helmkamp
2005-4-17
9376
San Luis Obispo
Central Coast, Corbett Canyon, 2.3 miles north of Calif. Hwy 227 in Arroyo Grande
81
Comment
OBI43340
Festuca perennis
Eric Wise
1981-6-22
637
San Luis Obispo
Lopez Water Treatment Reservoir
Comment
OBI79795
Festuca temulenta
David J. Keil, with V. L. Holland
2013-6-12
31797
San Luis Obispo
Arroyo Grande area off Lopez Drive in vicinity of Sweet Springs Mobile Home Park
Comment
UCR266043
Festuca temulenta
David J. Keil, V. L. Holland
2013-6-12
31797
San Luis Obispo
Central Coast, Arroyo Grande area off Lopez Drive in vicinity of Sweet Springs Mobile Home Park
135
Comment
UCR131913
Foeniculum vulgare
George K. Helmkamp
2003-10-24
8218
San Luis Obispo
Central Coast, El Campo Rd 0.1 mi east of Los Berros Rd, SE of Arroyo Grande
46
Comment
UCR146979
Foeniculum vulgare
George K. Helmkamp, E. A. Helmkamp
2004-10-8
8846
San Luis Obispo
Central Coast, Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive and Arroyo Grande Creek
136
Comment
UC3626
Fritillaria biflora
Alice King
Apr. 1895
San Luis Obispo
Arroyo Grande
Comment
UC76372
Fritillaria biflora
Miss M. Alice King
Apr. 1895
San Luis Obispo
Arroyo Grande
Comment
UC23832
Gilia achilleifolia subsp. achilleifolia
Alice King
May, 1895
San Luis Obispo
Arroyo Grande
Comment
UC455638
Gilia achilleifolia subsp. achilleifolia
California Polytechnic School
94
San Luis Obispo
Arroyo Grande
Comment
UC73635
Gilia achilleifolia subsp. achilleifolia
Miss M. Alice King
May, 1895
San Luis Obispo
Arroyo Grande
Comment
UC73638
Gilia achilleifolia subsp. achilleifolia
Miss M. Alice King
April 1895
San Luis Obispo
Arroyo Grande
Comment
UC23734
Gilia achilleifolia subsp. multicaulis
Alice King
Apr. 1895
San Luis Obispo
Arroyo Grande
Comment
UC1123800
Gilia clivorum
N. K. Carlson
1936-3-19
162
San Luis Obispo
2.2 mi ne Los Berros; Arroyo Grande Quad., ne of Los Berros
Comment
CAS-BOT-BC225541
Gilia tenuiflora
R. F. Hoover
1967-4-12
10433
San Luis Obispo
Upper Arroyo Grande
Comment
CAS-BOT-BC225542
Gilia tenuiflora
R. F. Hoover
1967-3-5
10245
San Luis Obispo
Upper Arroyo Grande
Comment
SBBG58479
Glaux maritima
R. Hoffmann
1930-4-18
San Luis Obispo
Arroyo Grande
Comment
UCR132055
Gnaphalium luteoalbum
George K. Helmkamp
2003-7-31
8054 B
San Luis Obispo
Central Coast, west edge of Nipomo Hill at junction of Cienaga Rd. and Valley View Road
15
Comment
CDA26798
Grevillea robusta
David J. Keil, Lawrence M. Kelly, Kathryn Bay, Frieda Wertman
1988-11-12
21194
San Luis Obispo
Near summit along California Route 227 between San Luis Obispo and Arroyo Grande. Elevation: 600-700 feet.
0
Comment
OBI79262
Hedera
David J. Keil
2011-12-11
31206
San Luis Obispo
Arroyo Grande. Branch Mill Road at outskirts of Arroyo Grande
47
Comment
RSA736584
Helenium puberulum
Keith E. Hoffmaster
1935-7-1
656
San Luis Obispo
Near Arroyo Grande
Comment
UC19189
Helianthemum scoparium
Alice King
May 1895
San Luis Obispo
Arroyo Grande
Comment
UCR8984
Helianthemum scoparium var. vulgare
J. Patman
1963-5-30
s.n.
San Luis Obispo
Road to Nipomo, south of Oceano and east of Hwy 1.
45
Comment
OBI80095
Hemizonia congesta
David J. Keil
2012-8-21
31504
San Luis Obispo
Arroyo Grande. Vicinity of Arroyo Grande Creek near Bridge Street
25
Comment
POM20532
Hemizonia increscens
F. W. Peirson
1923-6-26
s.n.
San Luis Obispo
Arroyo Grande.
Comment
IRVC28932
Hemizonia increscens subsp. increscens
G. K. Helmkamp
2003-10-24
8215
San Luis Obispo
El Campo Rd 0.1 mi E of Los Berros Rd, SE of Arroyo Grande Central Coast
46
Comment
UCR132012
Hemizonia increscens subsp. increscens
George K. Helmkamp
2003-10-24
8215
San Luis Obispo
Central Coast, El Campo Rd 0.1 mi east of Los Berros Rd, SE of Arroyo Grande
46
Comment
RSA710339
Heteranthemis viscidihirta
George K. Helmkamp
2004-4-1
8410
San Luis Obispo
Central Coast: Nipomo Mesa; Mesa Dunes Mobile Home Park along Mesa View Dr., 0.2 miles S of Halcyon Road
76
Comment
UCR140092
Heteranthemis viscidihirta
George K. Helmkamp
2004-4-1
8410
San Luis Obispo
Central Coast, Nipomo Mesa; Mesa Dunes Mobile Home Park along Mesa View Dr., 0.2 mi south of Halcyon Rd.
76
Comment Read comments Jul 6 2012
JEPS20383
Heterotheca grandiflora
Miss R. N. Reid
1916-10-11
San Luis Obispo
Arroyo Grande
Comment
OBI16094
Heterotheca grandiflora
Mrs. Robert F. Hoover
1962-1-13
8
San Luis Obispo
Arroyo Grande
Comment
UC1069577
Heterotheca grandiflora
H. C. Lee
1936-3-18
518
San Luis Obispo
3/4 mi w Verde; Arroyo Grande Quadrangle
Comment
UC570112
Heterotheca grandiflora
H. C. Lee
1936-3-18
518
San Luis Obispo
0.75 mi w Verdi; Arroyo Grande Quad.
Comment
UCD133029
Heterotheca grandiflora
John C. Tothill
1960-8-1
s.n.
San Luis Obispo
San Luis Obispo County: Arroyo Grande.
Comment
UCR132044
Heterotheca grandiflora
George K. Helmkamp
2003-7-29
8045 B
San Luis Obispo
Central Coast, 0.6 mi south of Nipomo Hill in Arroyo Grande area
46
Comment
UCR162159
Heterotheca grandiflora
George K. Helmkamp, E. A. Helmkamp
2005-2-14
8904
San Luis Obispo
Central Coast, Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive
122
Comment
UC12338
Holodiscus discolor
Alice King
1895-5-1
San Luis Obispo
Arroyo Grande
Comment
CAS-BOT-BC289103
Hordeum depressum
R. F. Hoover
1967-4-12
10423
San Luis Obispo
Upper Arroyo Grande
Comment
OBI21918
Hordeum depressum
Robert F. Hoover
1967-4-12
10423
San Luis Obispo
Upper Arroyo Grande
Comment
OBI81016
Hordeum murinum
Sammy Bueche, Anthony Campos, Mia Stornetta, Jessie Poletti, John Corotis, Andy Catanio
2014-4-24
5
San Luis Obispo
Strother Park. Hillside that gradually slopes into a flat area along the bank of the Arroyo Grande Creek.
14
Comment
UC1132557
Hordeum murinum subsp. leporinum
N. K. Carlson
1936-3-18
139
San Luis Obispo
.6 mi ssw Picacho; Arroyo Grande Quad.
Comment
UCR140074
Hordeum murinum subsp. leporinum
George K. Helmkamp
2004-4-1
8419
San Luis Obispo
Central Coast, Nipomo Mesa; Mesa Dunes Mobile Home Park along Mesa View Dr., 0.2 mi south of Halcyon Rd.
76
Comment
OBI82466
Horkelia cuneata
David J. Keil, with V. L. Holland
2015-6-19
33248
San Luis Obispo
Rural area north of Arroyo Grande between Corbett Canyon Road and Highway 227, accessed via Dairy Lane and a private drive
150
Comment
OBI70811
Horkelia cuneata subsp. cuneata
David J. Keil, with V. L. Holland
2009-6-16
30620
San Luis Obispo
Between San Luis Obispo and Arroyo Grande. Area southeast of intersection of California Highway 227 (Carpenter Canyon Road) and Noyes Road in vicinity of high tension line corridor. Vic. 35 deg. 9.9'N x 120 deg. 34.9'W.
Comment
UC73030
Horkelia cuneata subsp. cuneata
Miss M. Alice King
1895-5-1
San Luis Obispo
arroyo grande
Comment
OBI73601
Horkelia cuneata var. puberula
David J. Keil
2010-7-13
30916
San Luis Obispo
Hondonada Road, east of Arroyo Grande
115
Comment
UC1953185
Horkelia cuneata var. puberula
David Keil
2010-7-13
30916
San Luis Obispo
Hondonada Road, east of Arroyo Grande.
Comment
SBBG72453
Horkelia cuneata var. sericea
R. Hoffmann
1930-4-19
San Luis Obispo
Arroyo Grande
Comment
JEPS36512
Hypochaeris glabra
W. L. Jepson
1941-4-17
20253
San Luis Obispo
Arroyo Grande
Comment
UCR140076
Hypochaeris glabra
George K. Helmkamp
2004-4-1
8412
San Luis Obispo
Central Coast, Nipomo Mesa; Mesa Dunes Mobile Home Park along Mesa View Dr., 0.2 mi south of Halcyon Rd.
76
Comment
UCR134695
Hypochaeris radicata
George K. Helmkamp
2003-9-10
8140
San Luis Obispo
Central Coast, 0.6 mi south of Nipomo Hill in Arroyo Grande area
46
Comment
JEPS19131
Isocoma menziesii var. vernonioides
W. L. Jepson
1940-10-3
20156
San Luis Obispo
Arroyo Grande
Comment
UC1118865
Isocoma menziesii var. vernonioides
H. C. Lee
1936-3-14
501
San Luis Obispo
1 mi nw Oceano; Arroyo Grande Quadrangle
Comment
SBBG59238
Isolepis cernua
R. Hoffmann
1930-4-19
San Luis Obispo
Arroyo Grande
Comment
OBI13702
Juglans hindsii
R. A. Hays
1957-11-27
s.n.
San Luis Obispo
Arroyo Grande
Comment
SBBG57277
Juncus lescurii
R. Hoffmann
1930-4-18
San Luis Obispo
near marsh, Arroyo Grande
Comment
UC27429
Keckiella cordifolia
Alice King
May 1895
San Luis Obispo
Arroyo Grande
Comment
UC76440
Keckiella cordifolia
Ramona Sanford
May 1895
San Luis Obispo
Arroyo Grande
Comment
UCD123814
Keckiella cordifolia
R. N. Raynor
1939-7-4
s.n.
San Luis Obispo
San Luis Obispo County: Arroyo Grande Park.
Comment
SBBG55637
Kickxia elatine
D. Keil
1979-10-27
13638
San Luis Obispo
E of Arroyo Grande along rd to Lopez Lake, ca. 1 mi E of Orcutt Rd
Comment
UCR29869A
Kickxia elatine
David J. Keil
1979-10-27
13638
San Luis Obispo
East of Arroyo Grande along road to Lopez Lake, c. 1 mile east of Orcutt Road
Comment
UCR146980
Lactuca serriola
George K. Helmkamp, E. A. Helmkamp
2004-10-8
8850
San Luis Obispo
Central Coast, Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive and Arroyo Grande Creek
136
Comment
UC76427
Lagophylla ramosissima
Miss M. Alice King
1895-5-1
San Luis Obispo
Arroyo Grande
Comment
CHSC61254
Lamarckia aurea
T. B. Devine
1980-4-5
663
San Luis Obispo
Along Frontage Rd. just e of Hwy 101 ca 1 mi s of Arroyo Grande. Roadcut beside pasture.
Comment
JEPS72954
Lamarckia aurea
W. L. Jepson
1941-4-17
20257
San Luis Obispo
Arroyo Grande
Comment
UC1132164
Lamarckia aurea
N. K. Carlson
1936-3-19
154
San Luis Obispo
1.9 mi ese of Picacho
175
Comment
OBI82360
Lamium amplexicaule
David J. Keil
2015-9-21
33407
San Luis Obispo
Arroyo Grande. Fair Oaks Avenue at Fred Grieb bridge over Arroyo Grande Creek.
25
Comment
CAS-BOT-BC412780
Lastarriaea coriacea
R. F. Hoover
1969-5-3
11298
San Luis Obispo
Upper Arroyo Grande
Comment
OBI10922
Lastarriaea coriacea
Robert F. Hoover
1969-5-3
11298
San Luis Obispo
Upper Arroyo Grande
Comment
SBBG61758
Lastarriaea coriacea
R. Hoffmann
1930-4-18
San Luis Obispo
Arroyo Grande
Comment
CAS-BOT-BC334575
Lasthenia californica
Alice Eastwood; John Thomas Howell
1937-4-30
4164
San Luis Obispo
In the upper Arroyo Grande
Comment
CAS-BOT-BC339023
Lasthenia californica
R. F. Hoover
1967-3-5
10240
San Luis Obispo
Upper Arroyo Grande
Comment
UC1314950
Lasthenia gracilis
R. F. Hoover
1967-3-5
10240
San Luis Obispo
Upper Arroyo Grande
Comment
UCR132052
Lavatera cretica
George K. Helmkamp
2003-7-31
8048 B
San Luis Obispo
Central Coast, west edge of Nipomo Hill at junction of Cienaga Rd. and Valley View Road
15
Comment
UC75945
Layia glandulosa
Alice King
1895-5-1
San Luis Obispo
Arroyo Grande
Comment
UC75862
Layia hieracioides
Miss M. Alice King
1895-5-1
San Luis Obispo
Arroyo Grande
Comment
UC1069775
Layia platyglossa
N. K. Carlson
1936-3-19
156
San Luis Obispo
1.9 mi ese Picacho; Arroyo Grande, Plot 5
175
Comment
UCR132051
Lepidium latifolium
George K. Helmkamp
2003-7-31
8068
San Luis Obispo
Central Coast, west edge of Nipomo Hill at junction of Cienaga Rd. and Valley View Road
15
Comment
UC569957
Lepidium nitidum
N. K. Carlson
1936-3-18
134
San Luis Obispo
0.6 mi sw Picacho; Arroyo Grande Quad.
99
Comment
OBI79961
Lepidium virginicum subsp. menziesii
David J. Keil, with V. L. Holland
2013-6-12
31798
San Luis Obispo
Arroyo Grande area off Lopez Drive in vicinity of Sweet Springs Mobile Home Park
Comment
OBI59298
Leptochloa fusca subsp. uninervia
David J. Keil
2001-6-26
29626
San Luis Obispo
Arroyo Grande, Camino Mercado, ca. 0.2 mile north from junction with west Branch Street.
Comment
UC23421
Leptodactylon californicum
Alice King
May 1895
San Luis Obispo
Arroyo Grande
Comment
IRVC28940
Lessingia filaginifolia var. filaginifolia
G. K. Helmkamp
2003-9-10
8138
San Luis Obispo
0.6 mi S of Nipomo Hill in Arroyo Grande area Central Coast
46
Comment
UCR132026
Lessingia filaginifolia var. filaginifolia
George K. Helmkamp
2003-9-10
8138
San Luis Obispo
Central Coast, 0.6 mi south of Nipomo Hill in Arroyo Grande area
46
Comment
JEPS68577
Leymus X multiflorus
Chas. E. Denman
Oct. 1913
San Luis Obispo
Upper Arroyo Grande
Comment
OBI82467
Linanthus californicus
David J. Keil, with V. L. Holland
2015-6-19
33249
San Luis Obispo
Rural area north of Arroyo Grande between Corbett Canyon Road and Highway 227, accessed via Dairy Lane and a private drive
110
Comment
UCR115285
Linaria bipartita
Austin P. Griffiths
1978-5-20
s.n.
San Luis Obispo
Central Coast, city of Oceano
10
Comment
UC1135267
Lithocarpus densiflorus
H. C. Lee
1936-2-28
439
San Luis Obispo
2 mi e Arroyo Grande; Arroyo Grande Quad.
182
Comment
UC11894
Lithophragma cymbalaria
Alice King
June 1895
San Luis Obispo
Arroyo Grande
Comment
UCR16410
Lithophragma heterophyllum
Val Chase
1965-4-16
79
San Luis Obispo
4 mi south of Edna on the road from Edna to Arroyo Grande
76
Comment
CDA16133
Lobularia maritima
G. F. Hrusa
1999-2-24
14923
San Luis Obispo
South Coast Ranges; Hwy 227, at corner of Noyes Rd, at top of hill.
143
Comment
UC75865
Logfia filaginoides
Miss M. Alice King
1895-5-1
San Luis Obispo
Arroyo Grande
Comment
UCR160304
Lolium multiflorum
George K. Helmkamp
2004-5-9
8574
San Luis Obispo
Central Coast, Mesa Dunes Mobile Home Park along Mesa View Dr. (Calif. Hwy 1), 0.2 mi south of the jct of Halcyon Rd.
61
Comment
UCR132753
Lolium perenne
George K. Helmkamp
2003-7-29
8037 B
San Luis Obispo
Central Coast, 0.6 mi south of Nipomo Hill in Arroyo Grande area
46
Comment
UC1132211
Lolium temulentum
N. K. Carlson
1936-3-18
142
San Luis Obispo
0.6 mi ssw Picacho; Arroyo Grande Quad.
99
Comment
UC76381
Lomatium dasycarpum subsp. dasycarpum
Miss M. Alice King
1895-1
San Luis Obispo
Arroyo Grande
Comment
UC28547
Lonicera involucrata var. ledebourii
W. H. Brewer
Apr 12 1861-Apr 13 1861
427
San Luis Obispo
Arroyo Grande
Comment
UCR132046
Lotus corniculatus
George K. Helmkamp
2003-7-31
8055
San Luis Obispo
Central Coast, west edge of Nipomo Hill at junction of Cienaga Rd. and Valley View Road
15
Comment
RSA406887
Lotus scoparius
Ralph Hoffmann
1930-4-19
s.n.
San Luis Obispo
Arroyo Grande.
Comment
UC1129161
Lotus scoparius
N. K. Carlson
1936-3-21
198
San Luis Obispo
1.1 mi nnw Corbett; Arroyo Grande Quad.
99
Comment
UC1129198
Lotus strigosus
N. K. Carlson
1935-3-19
163
San Luis Obispo
0.2 mi s Nipomo Hill; Arroyo Grande Quad.
121
Comment
UC1129201
Lotus strigosus
N. K. Carlson
1936-3-18
125
San Luis Obispo
0.2 mi e Nipomo Hill; Arroyo Grande Quad.
76
Comment
UC1129231
Lotus wrangelianus
N. K. Carlson
1936-3-18
127
San Luis Obispo
1 mi e Nipomo Hill; Arroyo Grande Quad.
76
Comment
JEPS85685
Lupinus
W. L. Jepson
1941-4-17
20255
San Luis Obispo
Arroyo Grande
Comment
A366657
Lupinus albifrons
A. Eastwood
1941-4-20
18963
Unknown
Upper Arroya [Arroyo] Grande
Comment
CAS-BOT-BC195777
Lupinus albifrons var. albifrons
Alice Eastwood
1941-4-20
18963
San Luis Obispo
Upper Arroya [Arroyo] Grande
Comment
UCR162158
Lupinus albifrons var. douglasii
George K. Helmkamp, E. A. Helmkamp
2005-2-14
8905
San Luis Obispo
Central Coast, Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive
122
Comment
GH366761
Lupinus arboreus
W. H. Brewer
April, 1860-62
435 , 450
Unknown
Arroyo Grande
Comment
SD186205
Lupinus arboreus
G. K. Helmkamp
2003-7-29
8046 B
San Luis Obispo
0.6 mile south of Nipomo Hill in Arroyo Grande area.
46
Comment
UC1129335
Lupinus arboreus
H. C. Lee
1936-5-17
612
San Luis Obispo
1 mi nw Junction Canyons #1 and 2; Arroyo Grande Quad.
Comment
UC1129338
Lupinus arboreus
F. H. Raymond
1930-12-19
133
San Luis Obispo
s Arroyo Grande; Santa Barbara National Forest, Arroyo Grande Quad.
121
Comment
UC1129358
Lupinus arboreus
H. C. Lee
1936-3-2
443
San Luis Obispo
2 mi n Arroyo Grande; Arroyo Grande Quad.
Comment
UCR132050
Lupinus arboreus
George K. Helmkamp
2003-7-29
8046 B
San Luis Obispo
Central Coast, 0.6 mi south of Nipomo Hill in Arroyo Grande area
46
Comment
POM10850
Lupinus arboreus var. arboreus
M. Alice King
1895-05
s.n.
San Luis Obispo
Arroyo Grande.
Comment
POM20548
Lupinus arboreus var. arboreus
F. W. Peirson
1923-6-26
s.n.
San Luis Obispo
Arroyo Grande.
Comment
RSA285658
Lupinus arboreus var. arboreus
D. C. Michener
1982-7-22
4071
San Luis Obispo
West side of top of ridge of Noyes Road ca. 0.2 miles west of junction with Ca 227.
Comment
SBBG71260
Lupinus bicolor
R. Hoffmann
1930-4-19
San Luis Obispo
Arroyo Grande
Comment
UC1129359
Lupinus bicolor
N. K. Carlson
1936-3-18
123
San Luis Obispo
1 mi e Nipomo Hill; Arroyo Grande Quad.
76
Comment
UC73207
Lupinus bicolor
Miss M. Alice King
May, 1895
San Luis Obispo
Arroyo Grande
Comment
UCR158737
Lupinus bicolor
George K. Helmkamp, E. A. Helmkamp
2005-4-17
9367
San Luis Obispo
Central Coast, Corbett Canyon, 2.3 miles north of Calif. Hwy 227 in Arroyo Grande
81
Comment
UC73238
Lupinus chamissonis
Miss M. Alice King
June, 1895
San Luis Obispo
Arroyo Grande
Comment
UCR132065
Lupinus chamissonis
George K. Helmkamp
2003-7-29
8043 B
San Luis Obispo
Central Coast, 0.6 mi south of Nipomo Hill in Arroyo Grande area
46
Comment
UC1129493
Lupinus hirsutissimus
H. C. Lee
1936-3-2
444
San Luis Obispo
1 3/4 mi ne Arroyo Grande; Arroyo Grande Quad.
Comment
POM179184
Lupinus latifolius subsp. latifolius
Alice Eastwood
1941-4-20
18964
San Luis Obispo
Upper Arroyo Grande.
Comment
CAS-BOT-BC207218
Lupinus ludovicianus
R. F. Hoover
1969-5-3
11301
San Luis Obispo
Upper Arroyo Grande
Comment
CAS-BOT-BC207219
Lupinus ludovicianus
R. F. Hoover
1964-5-11
8800
San Luis Obispo
Upper Arroyo Grande
Comment
CAS-BOT-BC207225
Lupinus ludovicianus
Alice Eastwood; John Thomas Howell
1937-4-30
4165
San Luis Obispo
In the Upper Arroyo Grande.
Comment
CAS-BOT-BC207230
Lupinus ludovicianus
R. F. Hoover
1969-5-3
11301
San Luis Obispo
Upper Arroyo Grande
Comment
CAS-BOT-BC207231
Lupinus ludovicianus
R. F. Hoover
1964-5-11
8800
San Luis Obispo
Upper Arroyo Grande
Comment
CAS-BOT-BC207232
Lupinus ludovicianus
R. F. Hoover
1964-5-11
8800
San Luis Obispo
Upper Arroyo Grande
Comment
JEPS65331
Lupinus ludovicianus
Alice King
June 1895
San Luis Obispo
Arroyo Grande
Comment
OBI19290
Lupinus ludovicianus
Robert F. Hoover
1969-5-3
11301
San Luis Obispo
Upper Arroyo Grande
Comment
OBI19291
Lupinus ludovicianus
Robert F. Hoover
1964-5-11
8800
San Luis Obispo
Upper Arroyo Grande
Comment
RSA201632
Lupinus ludovicianus
Robert F. Hoover
1964-5-11
8800
San Luis Obispo
Upper Arroyo Grande
Comment
RSA216748
Lupinus ludovicianus
Robert F. Hoover
1969-5-3
11301
San Luis Obispo
Upper Arroyo Grande
Comment
RSA303891
Lupinus ludovicianus
J. R. Shevock
1972-4-1
1524
San Luis Obispo
Arroyo Grande
244
Comment
UC1392782
Lupinus ludovicianus
R. F. Hoover
1969-5-3
11301
San Luis Obispo
upper Arroyo Grande
Comment
UC73198
Lupinus ludovicianus
Miss M. Alice King
May, 1895
San Luis Obispo
Arroyo Grande
Comment
UC865312
Lupinus ludovicianus
Alice Eastwood and John Thomas Howell
1937-4-30
4165
San Luis Obispo
in the upper Arroyo Grande Upper Arroyo Grande; in the upper Arroyo Grande
Comment
UC73197
Lupinus microcarpus var. microcarpus
Miss M. Alice King
May, 1895
San Luis Obispo
Arroyo Grande
Comment
JEPS65384
Lupinus nanus
W. L. Jepson
1941-4-17
20255
San Luis Obispo
Arroyo Grande
Comment
UC15976
Lupinus nanus
W. H. Brewer
1861-4-13
451
San Luis Obispo
Arroyo Grande
Comment
UCR158744
Lupinus nanus
George K. Helmkamp, E. A. Helmkamp
2005-4-17
9364
San Luis Obispo
Central Coast, Corbett Canyon, 2.3 miles north of Calif. Hwy 227 in Arroyo Grande
81
Comment
RSA709063
Lupinus nanus subsp. nanus
George K. Helmkamp, E. A. Helmkamp
2005-4-17
9364
San Luis Obispo
Central Coast: Corbett canyon, 2.3 miles N of Hwy CA-227 in Arroyo Grande.
81
Comment
SEINET10354483
Lupinus sparsiflorus
W. J. Hess, Cherwin, K; Shepard, W
2000-1
8948
Santa Barbara
Happy Valley Canyon Rd, 12 mi. E of St. 154 & 254, Los Padres Natn'l Forest.
Comment
UCR162157
Lupinus succulentus
George K. Helmkamp, E. A. Helmkamp
2005-2-14
8906
San Luis Obispo
Central Coast, Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive
122
Comment
UC1129730
Lupinus truncatus
H. C. Lee
1936-3-23
532
San Luis Obispo
1 1/2 mi w Arroyo Grande; <San Luis Obispo National Forest>, Arroyo Grande Quad.
Comment
UC16028
Lupinus truncatus
Alice King
Apr. 1895
San Luis Obispo
Arroyo Grande
Comment
OBI37681
Lysimachia arvensis
Eric Wise
1981-6-22
650
San Luis Obispo
Lopez Water Treatment Reservoir
Comment
CAS-BOT-BC343881
Madia elegans
Alice Eastwood; John Thomas Howell
1937-4-30
4166
San Luis Obispo
In the upper Arroyo Grande
Comment
CAS-BOT-BC343882
Madia elegans
Alice Eastwood; John Thomas Howell
1937-4-30
4166
San Luis Obispo
In the upper Arroyo Grande
Comment
UC1122022
Malacothamnus jonesii
F. H. Raymond
1930-11-8
125
San Luis Obispo
Arroyo Grande Quadrangle, Picacho
Comment
UC33269
Malacothrix californica
Alice King
May, 1895
San Luis Obispo
Arroyo Grande
Comment
UC75863
Malacothrix californica
Miss M. Alice King
June, 1895
San Luis Obispo
Arroyo Grande
Comment
OBI64152
Malosma laurina
David J. Keil
2001-7-5
29636
San Luis Obispo
Arroyo Grande area. Ca. 0.5 miles off Lopez Drive on Hondanada Road.
Comment
OBI66755
Malosma laurina
David J. Keil
2004-8-31
29102
San Luis Obispo
Arroyo Grande area. Ca. 0.5 miles off Lopez Drive on Hondonada Road.
Comment
OBI70807
Malosma laurina
David J. Keil, with V. L. Holland
2009-6-16
30617
San Luis Obispo
Between San Luis Obispo and Arroyo Grande. Area southeast of intersection of California Highway 227 (Carpenter Canyon Road) and Noyes Road in vicinity of high tension line corridor. Vic. 35 deg. 9.9'N x 120 deg. 34.9'W.
Comment
RSA756004
Malosma laurina
David J. Keil
2000-8-30
29102
San Luis Obispo
Arroyo Grande area. Ca. 0.5 miles off Lopez Drive on Hondonada Road
Comment
RSA769825
Malosma laurina
David J. Keil, V. L. Holland
2009-6-16
30617
San Luis Obispo
Between San Luis Obispo and Arroyo Grande. Area southeast of intersection of California Highway 227 (Carpenter Canyon Road) and Noyes Road in vicinity of high tension line corridor.
170
Comment
SBBG132538
Malosma laurina
D. Keil, V. L. Holland
2009-6-16
30617
San Luis Obispo
between San Luis Obispo and Arroyo Grande, area SE of intersection of California Hwy 227 (Carpenter Cyn Rd) and Noyes Rd in vicinity of high tension line corridor
170
Comment
UC1872976
Malosma laurina
David Keil
2001-7-5
29636
San Luis Obispo
Arroyo Grande area. Ca. 0.5 mi off Lopez Drive on Hondanada Road.
Comment
UC1927812
Malosma laurina
David Keil
2000-8-30
29102
San Luis Obispo
Arroyo Grande area. Ca. 0.5 miles off Lopez Drive on Hondonada Road.
Comment
OBI80096
Malva assurgentiflora
David J. Keil
2012-8-21
31506
San Luis Obispo
Arroyo Grande. Vicinity of Arroyo Grande Creek near Bridge Street
25
Comment
SBBG54965
Malva assurgentiflora
S. A. Junak
1978-4-9
San Luis Obispo
behind building at 100 W Branch St; Arroyo Grande [intentional planting]
Comment
OBI81017
Malva nicaeensis
Sammy Bueche, Anthony Campos, Mia Stornetta, Jessie Poletti, John Corotis, Andy Catanio
2014-4-24
8
San Luis Obispo
Strother Park. Hillside that gradually slopes into a flat area along the bank of the Arroyo Grande Creek.
14
Comment
UCR132143
Malva nicaeensis
George K. Helmkamp
2003-10-24
8213
San Luis Obispo
Central Coast, El Campo Rd 0.1 mi east of Los Berros Rd, SE of Arroyo Grande
46
Comment
UCR134692
Malva nicaeensis
George K. Helmkamp
2003-9-21
8162
San Luis Obispo
Central Coast, Los Berros Rd, 0.9 mi SE of El Campo Rd., SE of Arroyo Grande
46
Comment
UCR115118
Malva parviflora
Austin P. Griffiths
1987-3-17
18068
San Luis Obispo
Oceano
Comment
UCR147030
Malva parviflora
George K. Helmkamp, E. A. Helmkamp
2004-10-8
8840
San Luis Obispo
Central Coast, Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive and Arroyo Grande Creek
136
Comment
OBI82363
Malva pseudolavatera
David J. Keil
2015-9-21
33404
San Luis Obispo
Arroyo Grande. Vacant lot at northwestern corner of intersection of Woodland Drive and Fair Oaks Avenue.
25
Comment
UC1122845
Marah fabacea
N. K. Carlson
1936-3-18
140
San Luis Obispo
0.6 mi ssw Picacho (Plot #2); Arroyo Grande Quadrangle
Comment
UCR161963
Marah fabacea
George K. Helmkamp, E. A. Helmkamp
2005-2-14
8899
San Luis Obispo
Central Coast, Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive
122
Comment
UCR132146
Marrubium vulgare
George K. Helmkamp
2003-10-24
8219
San Luis Obispo
Central Coast, El Campo Rd 0.1 mi east of Los Berros Rd, SE of Arroyo Grande
46
Comment
UC35558
Matricaria discoidea
W. H. Brewer
April 1861
426
San Luis Obispo
Arroyo Grande
Comment
CHSC85753
Maytenus boaria
Austin P. Griffiths
1980-5-1
San Luis Obispo
Central Coast. At NW corner of 1255 Grand Ave, Arroyo Grande. Male at extreme corner and female is just to E.
25
Comment
CHSC91699
Maytenus boaria
Austin P. Griffiths
1980-4-1
San Luis Obispo
Central Coast. At Security Pacific Bank in Arroyo Grande.
Comment
SEINET199106
Meconella linearis
Alex D. Hawkes, R. Bacigalupi
1951-5-26
4897
San Luis Obispo
Road fon San Luis Obispo toward Huasna Canyon, nar Arroyo Grande, in deep wooded valley.
Comment
UC1129806
Medicago polymorpha
N. K. Carlson
1936-3-18
132
San Luis Obispo
0.6 mi ssw Picacho (Plot 2); Arroyo Grande Quadrangle
Comment
UCR132036
Medicago polymorpha
George K. Helmkamp
2003-7-31
8069
San Luis Obispo
Central Coast, west edge of Nipomo Hill at junction of Cienaga Rd. and Valley View Road
15
Comment
UCR140408
Medicago polymorpha
George K. Helmkamp
2004-2-19
8302
San Luis Obispo
Central Coast, Mesa Dunes Mobile Home Park, along Mesa View Dr (Calif. Hwy 1), 0.2 mi south of the jct with Halcyon Rd.
61
Comment
UCR146832
Medicago polymorpha
George K. Helmkamp, E. A. Helmkamp
2004-10-8
8842
San Luis Obispo
Central Coast, Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive and Arroyo Grande Creek
136
Comment
UCR132144
Medicago sativa
George K. Helmkamp
2003-10-24
8216
San Luis Obispo
Central Coast, El Campo Rd 0.1 mi east of Los Berros Rd, SE of Arroyo Grande
46
Comment
OBI36696
Melilotus indicus
Eric Wise
1981-6-22
651
San Luis Obispo
Lopez Water Treatment Reservoir
Comment
UC75868
Micropus californicus var. californicus
Miss M. Alice King
June, 1895
San Luis Obispo
Arroyo Grande
Comment
UC35581
Micropus californicus var. subvestitus
W. H. Brewer
1861-4-13
452
San Luis Obispo
Arroyo Grande
Comment
OBI15609
Microseris elegans
Robert F. Hoover
1967-4-12
10424
San Luis Obispo
Upper Arroyo Grande
Comment
UCR131933
Mimulus aurantiacus
George K. Helmkamp
2003-8-18
8091
San Luis Obispo
Central Coast, S of Arroyo Grande; along Mesa View Dr., 0.4 mi south of the junction of Cienaga and Valley View Rd.
30
Comment
OBI9503
Mimulus aurantiacus var. aurantiacus
Mrs. R. F. Hoover
1962-1-13
10
San Luis Obispo
Arroyo Grande
Comment
OBI9535
Mimulus aurantiacus var. aurantiacus
Robert F. Hoover
1967-4-12
10438
San Luis Obispo
Upper Arroyo Grande
Comment
UC1314917
Mimulus aurantiacus var. aurantiacus
R. F. Hoover
1967-4-12
10438
San Luis Obispo
Upper Arroyo Grande
Comment
SEINET7063683
Mimulus guttatus
A. G. Vestal
1947-4-16
s.n.
San Luis Obispo
Above Arroyo Grande on Rotue 227 in Carpenter Canyon. UTM Zone 10, 720822mE, 3892982mN. (WGS84/NAD83).
108
Comment
UC8129
Minuartia douglasii
W. H. Brewer
Apr 12 1861-Apr 13 1861
432
San Luis Obispo
Arroyo Grande
Comment
GH400648
Monardella undulata
J. G. Lemmon
1887-06-01 - 1887-07-01
4622
Unknown
Arroyo Grande
Comment
RSA733977
Monardella undulata
Keith E. Hoffmaster
1935-6-28
651
San Luis Obispo
Near Arroyo Grande
Comment
UC76202
Monardella undulata
Miss M. Alice King
June, 1895
San Luis Obispo
Arroyo Grande
Comment
SBBG71981
Monardella undulata subsp. crispa
R. Hoffmann
1930-4-9
San Luis Obispo
Arroyo Grande
Comment
OBI80008
Mucronea californica
David J. Keil, with V. L. Holland
2013-6-7
31791
San Luis Obispo
Arroyo Grande area off Lopez Drive in vicinity of Sweet Springs Mobile Home Park
Comment
UC52568
Mucronea californica
Alice King
1895-5
San Luis Obispo
Arroyo Grande
Comment
OBI73600
Muhlenbergia microsperma
David J. Keil
2010-7-13
30917
San Luis Obispo
Hondonada Road, east of Arroyo Grande
115
Comment
UC1134637
Muilla maritima
N. K. Carlson
1936-3-19
176
San Luis Obispo
1.6 mi nnw Arroyo Grande (Plot 10); Arroyo Grande Quadrangle
Comment
UC1314928
Muilla maritima
R. F. Hoover
1967-3-5
10244
San Luis Obispo
Upper Arroyo Grande
Comment
RSA718821
Nassella pulchra
Michael Honer
2002-4-28
1623
San Luis Obispo
Appx. 4 mi. SE of Arroyo Grande, along Hwy 101.
91
Comment
UC1133214
Nassella pulchra
N. K. Carlson
1936-3-18
147
San Luis Obispo
0.5 mi se Newsome Springs (Plot 3); Arroyo Grande Quadrangle
137
Comment
UC1133215
Nassella pulchra
H. C. Lee
1936-3-3
445
San Luis Obispo
1/2 mi s Reed's; Arroyo Grande Quadrangle
Comment
RSA769863
Nassella tenuissima
David J. Keil
2010-7-21
30922
San Luis Obispo
Along Thomas Hill Road, just south of Hondonada Road, east of Arroyo Grande
100
Comment
CAS-BOT-BC60485
Nasturtium officinale
Mark A. Elvin; LynneDee Althouse
2006-5-25
4919
San Luis Obispo
Central Coastal Foothills. Above Arroyo Grande. Old Oak Park Road, across from 1620.
99
Comment
IRVC29499
Nasturtium officinale
Mark A. Elvin, LynneDee Althouse
2006-5-25
4919
San Luis Obispo
Above Arroyo Grande; Old Oak Park Road, across from 1620 Old Oak Park Rd. Central Coastal Foothills
99
Comment
OBI80979
Nasturtium officinale
Sammy Bueche, Anthony Campos, Mia Stornetta, Jessie Poletti, John Corotis, Andy Catanio
2015-4-24
2
San Luis Obispo
Strother Park. Hillside that gradually slopes into a flat area along the bank of teh Arroyo Grande Creek.
14
Comment
OBI82457
Navarretia hamata
David J. Keil, with V. L. Holland
2015-6-19
33256
San Luis Obispo
Rural area north of Arroyo Grande between Corbett Canyon Road and Highway 227, accessed via Dairy Lane and a private drive
110
Comment
UC72015
Nemophila menziesii
Miss M. Alice King
April, 1895
San Luis Obispo
Arroyo Grande
Comment
UC76179
Nicotiana
Miss M. Alice King
May 1885
San Luis Obispo
Arroyo Grande
Comment
UC26815
Nuttallanthus texanus
Alice King
Apr. 1895
San Luis Obispo
Arroyo Grande
Comment
UC1128082
Oemleria cerasiformis
H. C. Lee
1936-2-16
400
San Luis Obispo
Head of Newsom Canyon; Arroyo Grande Quad.
243
Comment
UCR158826
Oenothera laciniata
George K. Helmkamp, E. A. Helmkamp
2005-4-17
9374
San Luis Obispo
Central Coast, Corbett Canyon, 2.3 miles north of Calif. Hwy 227 in Arroyo Grande
81
Comment
UCR131918
Oenothera wolfii
George K. Helmkamp
2003-8-18
8092
San Luis Obispo
Central Coast, S of Arroyo Grande; along Mesa View Dr., 0.4 mi south of the junction of Cienaga and Valley View Rd.
30
Comment
UC27857
Orobanche parishii
Alice King
May 1895
San Luis Obispo
Arroyo Grande
Comment
UC455387
Oxalis albicans subsp. pilosa
I. J. Condit
1908-7-6
San Luis Obispo
Arroyo Grande
Comment
SD178207
Oxalis corniculata
G. K. Helmkamp
2004-3-21
8389
San Luis Obispo
Central Coast: Mesa Dunes Mobile Home Park along mesa View Dr., 0.2 mi south of the junction of Halcyon Rd., southeast of Oceano. Growing up through garden shrubs.
60
Comment
SD186273
Oxalis corniculata
G. K. Helmkamp
2003-7-31
806
San Luis Obispo
West edge of Nipomo Hill at junction of Cienaga Rd. and Valley View Road.
14
Comment
UCR132016
Oxalis corniculata
George K. Helmkamp
2003-7-31
8063
San Luis Obispo
Central Coast, west edge of Nipomo Hill at junction of Cienaga Rd. and Valley View Road
15
Comment
UCR140399
Oxalis corniculata
George K. Helmkamp
2004-3-21
8389
San Luis Obispo
Central Coast, Mesa Dunes Mobile Home Park along Mesa View Dr., 0.2 mi south of the junction of Halcyon Rd., SE of Oceano
61
Comment
OBI80395
Oxalis pes-caprae
Sydney Anderson
2015-1-30
1
San Luis Obispo
Strother Park, Arroyo Grande.
36
Comment
UC1126107
Paeonia californica
H. C. Lee
1936-2-16
401
San Luis Obispo
Head of Newsom Canyon Arroyo Grande Quadrangle
Comment
UC1126112
Paeonia californica
N. K. Carlson
1936-3-19
165
San Luis Obispo
2.2 mi ne Los Berros (Plot 6); Arroyo Grande Quadrangle
137
Comment
UC75783
Paeonia californica
Miss M. Alice King
April, 1895
San Luis Obispo
Arroyo Grande
Comment
UC27415
Penstemon centranthifolius
Alice King
Mar 1895
San Luis Obispo
Arroyo Grande
Comment
UC75892
Pentachaeta alsinoides
Miss M. Alice King
May, 1895
San Luis Obispo
Arroyo Grande
Comment
UC26181
Petunia parviflora
Miss M. Alice King
May 1895
San Luis Obispo
Arroyo Grande
Comment
UC24357
Phacelia douglasii
Miss M. Alice King
April 1895
San Luis Obispo
Arroyo Grande
Comment
OBI59257
Phacelia ramosissima
David J. Keil, with Lawrence M. Kelly, Kathryn Bay, and Frieda Wertman
1988-11-12
21195
San Luis Obispo
Near summit along California Route 227 between San Luis Obispo and Arroyo Grande.
213
Comment
RSA749095
Phacelia ramosissima
David J. Keil, Lawrence M. Kelly, Kathryn Bay, Frieda Wertman
1988-11-12
21195
San Luis Obispo
Near summit along CA Route 227 between San Luis Obispo and Arroyo Grande. Mosaic of coast live oak woodland, chaparral, and coastal scrub.
183
Comment
UC1928025
Phacelia ramosissima
David Keil, Lawrence M. Kelly, Kathryn Bay, and Frieda Wertman
1988-11-12
21195
San Luis Obispo
Near summit along California Route 227 between San Luis Obispo and Arroyo Grande.
182
Comment
UCR132761
Phacelia ramosissima
George K. Helmkamp
2003-7-29
8031 B
San Luis Obispo
Central Coast, 0.6 mi south of Nipomo Hill in Arroyo Grande area
46
Comment
UC65049
Phacelia viscida
Miss M. Alice King
April, 1895
San Luis Obispo
Arroyo Grande
Comment
UC1069430
Pholistoma auritum
N. K. Carlson
1936-3-18
150
San Luis Obispo
0.5 mi. s.e. Newsome Springs (near Plot 3); Arroyo Grande Quad.
137
Comment
UCR162149
Pholistoma auritum var. auritum
George K. Helmkamp, E. A. Helmkamp
2005-2-14
8903
San Luis Obispo
Central Coast, Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive
122
Comment
UC1129873
Pickeringia montana var. montana
H. C. Lee
1936-3-25
538
San Luis Obispo
1 1/2 mi n Arroyo Grande; Arroyo Grande Quadrangle
Comment
OBI73549
Pinus torreyana
David J. Keil
2010-7-20
30923
San Luis Obispo
Arroyo Grande. James Way east of Rancho Parkway
45
Comment
OBI82358
Pinus torreyana
David J. Keil
2015-11-8
33437
San Luis Obispo
Arroyo Grande. La Teena Place, 1.5 miles southeast of intersection with Noyes Road.
75
Comment
SD264686
Pinus torreyana
David Keil
2015-11-8
33437
San Luis Obispo
Arroyo Grande. La Teena Place, 1.5 miles southeast of intersection with Noyes Road.
74
Comment
OBI64154
Piperia michaelii
David J. Keil
2001-7-5
29637
San Luis Obispo
Arroyo Grande area. Ca. 0.5 miles off Lopez Drive on Hondanada Road.
Comment
OBI76696
Piperia michaelii
Jason Dart
2005-7-21
269
San Luis Obispo
Lopez Cyn Dr, W of wastewater treatment plant, within the Monte Sereno residential comm, formerly a portion of Biddel Ranch
171
Comment
UCR140373
Piptatherum miliaceum
George K. Helmkamp
2004-3-19
8382
San Luis Obispo
Central Coast, Arroyo Grande, along Traffic Way south of Grand Ave. at Arroyo Grande Creek
24
Comment
UC1069051
Plagiobothrys nothofulvus
H. C. Lee
1936-2-15
396
San Luis Obispo
1 mi se Arroyo Grande; San Luis Obispo, Arroyo Grande Quad.
91
Comment
UC1069059
Plagiobothrys nothofulvus
N. K. Carlson
1936-3-18
146
San Luis Obispo
0.5 mi se Newsome Springs; Arroyo Grande Quad.
137
Comment
UC1125608
Plantago erecta
N. K. Carlson
1936-3-19
160
San Luis Obispo
1.9 mi ese Picacho; Arroyo Grande Quad.
175
Comment
UCR132059
Plantago indica
George K. Helmkamp
2003-7-31
8060
San Luis Obispo
Central Coast, west edge of Nipomo Hill at junction of Cienaga Rd. and Valley View Road
15
Comment
UCR132762
Plantago lanceolata
George K. Helmkamp
2003-7-29
8032 B
San Luis Obispo
Central Coast, 0.6 mi south of Nipomo Hill in Arroyo Grande area
46
Comment
UCR140398
Plantago lanceolata
George K. Helmkamp
2004-3-21
8388
San Luis Obispo
Central Coast, Mesa Dunes Mobile Home Park along Mesa View Dr., 0.2 mi south of the junction of Halcyon Rd., SE of Oceano
61
Comment
UCR158888
Plantago lanceolata
George K. Helmkamp, E. A. Helmkamp
2005-4-17
9375
San Luis Obispo
Central Coast, Corbett Canyon, 2.3 miles north of Calif. Hwy 227 in Arroyo Grande
81
Comment
CHSC4013
Plantago maritima
D. B. Joley
1967-4-20
1
San Luis Obispo
On a mesa, ca. 50 ft s of Cabrillo highway and ca. 1/2 mile from turn off to Arroyo Grande, Nipomo.
60
Comment
UC76653
Plantago subnuda
Miss M. Alice King
May 1895
San Luis Obispo
Arroyo Grande
Comment
OBI81518
Platanus racemosa
Thea Smith, Yara Wahba
2015-11-7
1
San Luis Obispo
Strothers Park. Directly next to parking lot and behind house on 1153 Vard Loomis Lane; Also directly behind bathrooms and basketball courts.
Comment
UCR147237
Platanus racemosa
George K. Helmkamp, E. A. Helmkamp
2004-10-8
8845
San Luis Obispo
Central Coast, Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive and Arroyo Grande Creek
136
Comment
UC1126483
Platystemon californicus
N. K. Carlson
1936-3-19
161
San Luis Obispo
2.2 mi ne Los Berros (Plot 6); Arroyo Grande Quadrangle
Comment
JEPS14973
Plectritis ciliosa subsp. insignis
Brewer
1861-4-13
441
San Luis Obispo
Arroyo Grande
Comment
UC28829
Plectritis ciliosa subsp. insignis
W. H. Brewer
1861-4-12
441
San Luis Obispo
Arroyo Grande
Comment
UCR140400
Poa annua
George K. Helmkamp
2004-3-21
8385
San Luis Obispo
Central Coast, Mesa Dunes Mobile Home Park along Mesa View Dr., 0.2 mi south of the junction of Halcyon Rd., SE of Oceano
61
Comment
UC1132809
Poa secunda subsp. secunda
H. C. Lee
1936-3-3
451
San Luis Obispo
1/2 mi s Reeds; Arroyo Grande Quadrangle
Comment
UC1132811
Poa secunda subsp. secunda
N. K. Carlson
1936-3-19
178
San Luis Obispo
1.6 mi nnw Arroyo Grande (Plot 10); Arroyo Grande Quadrangle
60
Comment
UC25596
Pogogyne serpylloides
W. H. Brewer
1861-4-12
436
San Luis Obispo
Arroyo Grande
Comment
UC25601
Pogogyne serpylloides
Alice King
May 1895
San Luis Obispo
Arroyo Grande
Comment
SD186158
Polycarpon tetraphyllum
G. K. Helmkamp
2003-7-29
8038 B
San Luis Obispo
0.6 mile south of Nipomo Hill in Arroyo Grande area.
46
Comment
UCR132038
Polycarpon tetraphyllum
George K. Helmkamp
2003-7-29
8038 B
San Luis Obispo
Central Coast, 0.6 mi south of Nipomo Hill in Arroyo Grande area
46
Comment
UCR140091
Polycarpon tetraphyllum
George K. Helmkamp
2004-4-1
8409
San Luis Obispo
Central Coast, Nipomo Mesa; Mesa Dunes Mobile Home Park along Mesa View Dr., 0.2 mi south of Halcyon Rd.
76
Comment
CDA17511
Polygonum amphibium var. emersum
Austin Griffiths
1980-6-28
s.n.
San Luis Obispo
Oceano Dunes; Immed. downstream from Hwy 1 bridge over Arroyo Grande Ck.
Comment
UCR132057
Polygonum aviculare
George K. Helmkamp
2003-7-31
8057
San Luis Obispo
Central Coast, west edge of Nipomo Hill at junction of Cienaga Rd. and Valley View Road
15
Comment
UCR132062
Polygonum aviculare
George K. Helmkamp
2003-7-29
8047 B
San Luis Obispo
Central Coast, 0.6 mi south of Nipomo Hill in Arroyo Grande area
46
Comment
UCR134378
Polygonum aviculare
George K. Helmkamp
2003-9-21
8166
San Luis Obispo
Central Coast, Los Berros Rd, 0.9 mi SE of El Campo Rd., SE of Arroyo Grande
46
Comment
OBI75292
Polypodium calirhiza
David J. Keil
2010-12-8
30966
San Luis Obispo
Arroyo Grande area. Ca. 0.5 miles off Lopez Drive on Hondonada Road.
113
Comment
OBI43409
Polypogon monspeliensis
Eric Wise
1981-6-22
636
San Luis Obispo
Lopez Water Treatment Reservoir
Comment
OBI37124
Populus fremontii
Eric Wise
1981-6-22
643
San Luis Obispo
Lopez Water Treatment Reservoir. A clear lake of moderate size
Comment
OBI57887
Populus trichocarpa
David J. Keil
2000-3-8
28437
San Luis Obispo
Arroyo Grande. At the swinging bridge over Arroyo Grande Creek.
Comment
OBI82362
Portulaca oleracea
David J. Keil
2015-9-21
33406
San Luis Obispo
Arroyo Grande. Fair Oaks Avenue at Fred Grieb bridge over Arroyo Grande Creek.
25
Comment
UCR146964
Portulaca oleracea
George K. Helmkamp, E. A. Helmkamp
2004-10-8
8849
San Luis Obispo
Central Coast, Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive and Arroyo Grande Creek
136
Comment
SBBG56489
Potamogeton foliosus subsp. foliosus
R. Hoffmann
1930-4-19
San Luis Obispo
Arroyo Grande
Comment
UC72981
Potentilla anserina subsp. pacifica
Miss M. Alice King
May 1895
San Luis Obispo
Arroyo Grande
Comment
UC570030
Prunus fasciculata var. punctata
H. C. Lee
1936-3-23
533
San Luis Obispo
1 1/2 mi w of Arroyo Grande
76
Comment
UC1118501
Pseudognaphalium californicum
N. K. Carlson
1936-3-21
199
San Luis Obispo
1.1 mi nnw Corbett (Plot 21); Arroyo Grande Quadrangle
99
Comment
CHSC13880
Pseudognaphalium luteoalbum
D. B. Joley
1967-4-19
5
San Luis Obispo
In a vacant lot, ca. 50 feet S of Cabrillo Hwy. and ca. 1/2 mi. N of turn-off to Arroyo Grande, Nipomo.
60
Comment
CHSC25110
Pseudognaphalium luteoalbum
J. E. Bowlin
1967-3-24
14
San Luis Obispo
In a vacant lot, ca. 50 ft s of Cabrillo Hwy and ca. 1/2 mi n of turn-off to Arroyo Grande, Nipomo.
60
Comment
UC1118513
Pseudognaphalium thermale
H. C. Lee
1936-5-15
613
San Luis Obispo
0.75 mi nw Junction Canyons #1 & #2; Arroyo Grande Quad.
91
Comment Read comments Jul 10 2012
UC35745
Psilocarphus tenellus
W. H. Brewer
1861-4-13
453
San Luis Obispo
Arroyo Grande
Comment
UC35746
Psilocarphus tenellus
Prof. Brewer
1860-1
453
San Luis Obispo
Arroyo Grande
Comment
UC75869
Psilocarphus tenellus
Miss M. Alice King
May 1895
San Luis Obispo
Arroyo Grande
Comment
UC1063686
Pteridium aquilinum var. pubescens
H. C. Lee
1936-5-17
611
San Luis Obispo
1 mi nw of Junction Canyon 1 & 2; Arroyo Grande Quadrangle
Comment
UC1135308
Quercus agrifolia
H. C. Lee
1936-2-29
441
San Luis Obispo
Arroyo Grande Creek San Luis Obispo National Forest, Arroyo Grande Quad.
106
Comment
RSA715276
Ranunculus
George K. Helmkamp
2004-6-9
8614
San Luis Obispo
Central Coast: Mesa Dunes mobile home park along Mesa view Drive (hwy CA-1), 0..3 mi S of Halcyon Rd.
76
Comment
UCR169952
Ranunculus
George K. Helmkamp
2004-6-9
8614
San Luis Obispo
Central Coast, Mesa Dunes Mobile Home Park along Mesa View Dr (Calif. Hwy 1), 0.3 mi south of Halcyon Rd.
76
Comment
UC1126162
Ranunculus californicus
N. K. Carlson
1936-3-19
163
San Luis Obispo
2.2 mi ne Los Berros (Plot 6); Arroyo Grande Quadrangle
Comment
UC75777
Ranunculus hebecarpus
Miss M. Alice King
June, 1895
San Luis Obispo
Arroyo Grande
Comment
UC9451
Ranunculus hebecarpus
Alice King
May, 1895
San Luis Obispo
Arroyo Grande
Comment
UC1126753
Raphanus sativus
N. K. Carlson
1936-3-18
152
San Luis Obispo
.2 mi s of Nipomo Hill
124
Comment
UCR132061
Raphanus sativus
George K. Helmkamp
2003-7-31
8050 B
San Luis Obispo
Central Coast, west edge of Nipomo Hill at junction of Cienaga Rd. and Valley View Road
15
Comment
UC1071541
Rhamnus californica
H. C. Lee
1936-2-28
438
San Luis Obispo
Head of Newsome Canyon San Luis Obispo National Forest, Arroyo Grande Quad.
213
Comment
CAS-BOT-BC55880
Rhamnus crocea
R. F. Hoover
1967-3-5
10247
San Luis Obispo
Upper Arroyo Grande
Comment
OBI10287
Rhamnus crocea
Robert F. Hoover
1967-3-5
10247
San Luis Obispo
Upper Arroyo Grande
Comment
UC1314934
Rhamnus crocea
R. F. Hoover
1967-3-5
10247
San Luis Obispo
Upper Arroyo Grande
Comment
OBI25182
Rhus integrifolia
David J. Keil
1980-2-9
13688
San Luis Obispo
Between Arroyo Grande and San Luis Obispo along State hwy 227, ea 2 mi N of southern jctn of hwy 277 and Corbett cyn rd.
Comment
OBI70806
Rhus integrifolia
David J. Keil, with V. L. Holland
2009-6-16
30616
San Luis Obispo
Between San Luis Obispo and Arroyo Grande. Area southeast of intersection of California Highway 227 (Carpenter Canyon Road) and Noyes Road in vicinity of high tension line corridor. Vic. 35 deg. 9.9'N x 120 deg. 34.9'W.
Comment
UC1583688
Rhus integrifolia
David Keil
1980-2-9
13688
San Luis Obispo
between Arrouo Grande and San Luis Obispo (along state Highway 227, 2 mi n of southern junction of Highway 227 and Corbett Canyon Road)
Comment
UC1953220
Rhus integrifolia
David Keil with V. L. Holland
2009-6-16
30616
San Luis Obispo
Between San Luis Obispo and Arroyo Grande. Area southeast of intersection of California Highway 227 (Carpenter Canyon Road) and Noyes Road in vicinity of high tension line corridor.
Comment
CAS-BOT-BC173079
Ribes divaricatum var. pubiflorum
Alice Eastwood; John Thomas Howell
1937-4-30
4163
San Luis Obispo
In the upper Arroyo Grande
Comment
UC11532
Ribes divaricatum var. pubiflorum
Alice King
May 1895
San Luis Obispo
Arroyo Grande
Comment
UC75467
Ribes divaricatum var. pubiflorum
Miss M. Alice King
June, 1895
San Luis Obispo
Arroyo Grande
Comment
UC1127305
Ribes malvaceum
H. Lee
1936-2-24
420
San Luis Obispo
2 mi se Picacho; Arroyo Grande Quadrangle
Comment
GH380852
Ribes sanguineum var. glutinosum
W. H. Brewer
1860-1-1
431
Unknown
near Arroyo Grande
Comment
UC11552
Ribes sanguineum var. glutinosum
W. H. Brewer
1861-4-12
431
San Luis Obispo
Arroyo Grande
Comment
UC1127612
Ribes speciosum
H. C. Lee
1936-2-16
399
San Luis Obispo
head Newsom Canyon; Arroyo Grande Quadrangle
Comment
UC72931
Rorippa curvisiliqua
Miss M. Alice King
May 1895
San Luis Obispo
Arroyo Grande
Comment
CDA23084
Rorippa nasturtium-aquaticum
Mark A. Elvin, LynneDee Althouse
2006-5-25
4919
San Luis Obispo
Central Coastal Foothills; Above Arroyo Grande; Old Oak Park Road, across from 1620. Drainage ditch on west side of road.
Comment
SD220048
Rorippa nasturtium-aquaticum
Mark A. Elvin, Lynne Dee Althouse
2006-5-25
4919
San Luis Obispo
Central Coastal Foothills; above Arroyo Grande, Old Oak Park Road across from 1620.
99
Comment
UC1128572
Rosa californica
H. C. Lee
1936-2-15
393
San Luis Obispo
1 mi se Arroyo Grande; Arroyo Grande Quadrangle
Comment
OBI80093
Rubus armeniacus
David J. Keil
2012-8-21
31508
San Luis Obispo
Arroyo Grande. Vicinity of Arroyo Grande Creek near Bridge Street
25
Comment
OBI80094
Rubus ulmifolius
David J. Keil
2012-8-21
31507
San Luis Obispo
Arroyo Grande. Vicinity of Arroyo Grande Creek near Bridge Street
25
Comment
OBI36967
Rubus ursinus
Eric Wise
1981-6-22
641
San Luis Obispo
Lopez Water Treatment Reservoir. A clear lake of moderate size
Comment
UCR132145
Rubus ursinus
George K. Helmkamp
2003-10-24
8217
San Luis Obispo
Central Coast, El Campo Rd 0.1 mi east of Los Berros Rd, SE of Arroyo Grande
46
Comment
SD193340
Rumex acetosella
G. K. Helmkamp, E. A. Helmkamp
2005-4-17
9373
San Luis Obispo
Corbett Canyon, 2.3 miles north of Highway CA-227 in Arroyo Grande.
81
Comment
UC1136208
Rumex acetosella
H. C. Lee
1936-3-25
536
San Luis Obispo
0.75 mi se Pismo; San Luis Obispo National Forest, Arroyo Grande Quad.
30
Comment
UC455632
Rumex acetosella
I. J. Condit
1908-7-6
San Luis Obispo
Arroyo Grande
Comment
UCR132060
Rumex acetosella
George K. Helmkamp
2003-7-31
8049 B
San Luis Obispo
Central Coast, west edge of Nipomo Hill at junction of Cienaga Rd. and Valley View Road
15
Comment
UCR158743
Rumex acetosella
George K. Helmkamp, E. A. Helmkamp
2005-4-17
9373
San Luis Obispo
Central Coast, Corbett Canyon, 2.3 miles north of Calif. Hwy 227 in Arroyo Grande
81
Comment
OBI36785
Rumex conglomeratus
Eric Wise
1981-6-22
633
San Luis Obispo
Lopez Water Treatment Reservoir
Comment
OBI36786
Rumex conglomeratus
Eric Wise
1981-6-22
647
San Luis Obispo
Lopez Water Treatment Reservoir
Comment
OBI36803
Rumex conglomeratus
Eric Wise
1981-6-22
638
San Luis Obispo
Lopez Water Treatment Reservoir
Comment
RSA0029605
Rumex crispus
George K. Helmkamp
2003-7-31
8059
San Luis Obispo
Central Coast: west edge of Nipomo Hill at junction of Cienaga Rd. and Valley View Road
15
Comment
UC1070550
Rumex crispus
N. K. Carlson
1936-3-19
167
San Luis Obispo
2.2 mi ne Los Berros; Arroyo Grande Quad.
137
Comment
UCR132047
Rumex crispus
George K. Helmkamp
2003-7-31
8059
San Luis Obispo
Central Coast, west edge of Nipomo Hill at junction of Cienaga Rd. and Valley View Road
15
Comment
UCR140406
Rumex crispus
George K. Helmkamp
2004-2-19
8301
San Luis Obispo
Central Coast, Mesa Dunes Mobile Home Park, along Mesa View Dr (Calif. Hwy 1), 0.2 mi south of the jct with Halcyon Rd.
61
Comment
UCR162154
Rumex crispus
George K. Helmkamp, E. A. Helmkamp
2005-2-14
8909
San Luis Obispo
Central Coast, Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive
122
Comment
SBBG69924
Sagina maxima subsp. crassicaulis
R. Hoffmann
1930-4-19
San Luis Obispo
Arroyo Grande
Comment
OBI37104
Salix laevigata
Eric Wise
1983-2-17
1636 a
Unknown
Lopez Water Treatment Reservoir. A clear lake of moderate size
Comment
OBI37196
Salix laevigata
Eric Wise
1981-6-22
631
Unknown
Lopez Water Treatment Reservoir. A clear lake of moderate size
Comment
OBI36915
Salix lasiandra
Eric Wise
1983-2-17
1635
San Luis Obispo
Lopez Water Treatment Reservoir
Comment
OBI36877
Salix lasiolepis
Eric Wise
1981-6-22
632
San Luis Obispo
Lopez Water Treatment Reservoir. A clear lake of moderate size
Comment
OBI37197
Salix lasiolepis
Eric Wise
1983-2-17
1636
San Luis Obispo
Lopez Water Treatment Reservoir. A clear lake of moderate size
Comment
UC1134997
Salix lasiolepis
H. C. Lee
1936-2-29
442
San Luis Obispo
Arroyo Grande Creek Arroyo Grande Quadrangle
Comment
UCR132764
Salix lucida subsp. lasiandra
George K. Helmkamp
2003-7-29
8036 B
San Luis Obispo
Central Coast, 0.6 mi south of Nipomo Hill in Arroyo Grande area
46
Comment
UC456137
Salvia carduacea
I. J. Condit
1908-7-6
San Luis Obispo
Arroyo Grante Arroyo Grande
Comment
UC25749
Salvia spathacea
Alice King
May 1895
San Luis Obispo
Arroyo Grande
Comment
UCR4020
Salvia spathacea
Val Chase
1965-4-16
s 80
San Luis Obispo
4 mi south of Edna on the road from Edna to Arroyo Grande
76
Comment
UCR134381
Sambucus mexicana
George K. Helmkamp
2003-9-21
8168
San Luis Obispo
Central Coast, Los Berros Rd, 0.9 mi SE of El Campo Rd., SE of Arroyo Grande
46
Comment
UC75729
Saxifraga californica
Miss Alice King
April, 1895
San Luis Obispo
Arroyo Grande
Comment
SBBG59215
Schoenoplectus acutus var. occidentalis
R. Hoffmann
1930-4-18
San Luis Obispo
Arroyo Grande
Comment
OBI35216
Schoenoplectus californicus
Eric Wise
1981-6-22
627
San Luis Obispo
Lopez Water Treatment Reservoir
Comment
CDA23077
Scirpus microcarpus
Mark A. Elvin, LynneDee Althouse
2006-5-25
4920
San Luis Obispo
Central Coastal Foothills; Above Arroyo Grande; Old Oak Park Road, across from 1620. Drainage ditch on west side of road.
Comment
IRVC29500
Scirpus microcarpus
Mark A. Elvin, LynneDee Althouse
2006-5-25
4920
San Luis Obispo
Above Arroyo Grande; Old Oak Park Road, across from 1620 Old Oak Park Rd. Central Coastal Foothills
99
Comment
OBI82655
Senecio aphanactis
David J. Keil, with V. L. Holland
2015-6-19
33247
San Luis Obispo
Rural area north of Arroyo Grande between Corbett Canyon Road and Highway 227, accessed via Dairy Lane and a private drive
110
Comment
UC53836
Senecio californicus
Mrs. R. W. Summers
1886-2-21
San Luis Obispo
Arroyo Grande
Comment
RSA473117
Senecio vulgaris
Ralph Hoffman
1930-4-18
s.n.
San Luis Obispo
Arroyo Grande
Comment
SD186109
Senecio vulgaris
G. K. Helmkamp
2003-7-31
8065
San Luis Obispo
West edge of Nipomo Hill at junction of Cienaga Rd. and Valley View Road.
14
Comment
UCR132014
Senecio vulgaris
George K. Helmkamp
2003-7-31
8065
San Luis Obispo
Central Coast, west edge of Nipomo Hill at junction of Cienaga Rd. and Valley View Road
15
Comment
UCR147032
Senecio vulgaris
George K. Helmkamp, E. A. Helmkamp
2004-10-8
8836
San Luis Obispo
Central Coast, Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive and Arroyo Grande Creek
136
Comment
UCR4805
Senna multiglandulosa
O. F. Clarke
1966-11-27
661127- 01
San Luis Obispo
13 mi. north of Santa Barbara County line, on Hwy 101
Comment
UC1124970
Sidalcea malviflora subsp. laciniata
H. C. Lee
1936-3-25
537
San Luis Obispo
0.75 mi se Pismo; San Luis Obispo National Forest, Arroyo Grande Quad.
30
Comment
UC73431
Sidalcea malviflora subsp. laciniata
Miss M. Alice King
May 1895
San Luis Obispo
Arroyo Grande
Comment
UC14436
Silene antirrhina
Alice King
1895-5
San Luis Obispo
Arroyo Grande
Comment
UCR147228
Silene armeria
George K. Helmkamp, E. A. Helmkamp
2004-8-15
8788 B
San Luis Obispo
Central Coast, Nipomo Mesa. Mesa Dunes Mobile Home Park along Mesa View Dr., 0.2 mi S. of jct. of Halcyon Rd., SE of Oceano
76
Comment
RSA709062
Silene gallica
George K. Helmkamp
2005-4-17
9371
San Luis Obispo
Central Coast: Corbett canyon, 2.3 miles N of Hwy CA-227 in Arroyo Grande.
81
Comment
SD193265
Silene gallica
G. K. Helmkamp, E. A. Helmkamp
2005-4-17
9371
San Luis Obispo
Corbett Canyon, 2.3 miles north of Highway CA-227, in Arroyo Grande.
81
Comment
UC1137872
Silene gallica
N. K. Carlson
1936-3-18
128
San Luis Obispo
1 mi e Nipomo Hill; Arroyo Grande Quad.
76
Comment
UCR158741
Silene gallica
George K. Helmkamp, E. A. Helmkamp
2005-4-17
9371
San Luis Obispo
Central Coast, Corbett Canyon, 2.3 miles north of Calif. Hwy 227 in Arroyo Grande
81
Comment
UC1137889
Silene laciniata subsp. major
H. C. Lee
1936-3-25
539
San Luis Obispo
1 1/2 mi n Arroyo Grande; San Luis Obispo National Forest, Arroyo Grande Quad.
Comment
UC8467
Silene laciniata subsp. major
Alice King
May, 1895
San Luis Obispo
Arroyo Grande
Comment
OBI81019
Silybum marianum
Sammy Bueche, Anthony Campos, Mia Stornetta, Jessie Poletti, John Corotis, Andy Catanio
2014-4-24
1
San Luis Obispo
Strother Park. Hillside that gradually slopes into a flat area along the bank of the Arroyo Grande Creek. Found on both flat ground and sloped areas, close to creek and further away.
14
Comment
OBI79343
Sisymbrium irio
David J. Keil
2011-12-11
31209
San Luis Obispo
Arroyo Grande. Southwest of intersection of P.C. Railway and E. Cherry Ave
39
Comment
UC1125199
Solanum douglasii
N. K. Carlson
1936-3-21
200
San Luis Obispo
1.1 mi nnw of Corbett
99
Comment
UC577721
Solanum douglasii
H. C. Lee
1936-2-24
417
San Luis Obispo
2 mi se of Pichacho (ne of Los Berros)
152
Comment
UCR134694
Solanum douglasii
George K. Helmkamp
2003-9-21
8164
San Luis Obispo
Central Coast, Los Berros Rd, 0.9 mi SE of El Campo Rd., SE of Arroyo Grande
46
Comment
UCR162153
Solanum douglasii
George K. Helmkamp, E. A. Helmkamp
2005-2-14
8910
San Luis Obispo
Central Coast, Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive
122
Comment
UCR132034
Solanum physalifolium var. nitidibaccatum
George K. Helmkamp
2003-7-31
8071
San Luis Obispo
Central Coast, west edge of Nipomo Hill at junction of Cienaga Rd. and Valley View Road
15
Comment
UCR146968
Solanum physalifolium var. nitidibaccatum
George K. Helmkamp, E. A. Helmkamp
2004-10-8
8837
San Luis Obispo
Central Coast, Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive and Arroyo Grande Creek
136
Comment
UC1125041
Solanum umbelliferum
H. C. Lee
1936-2-24
418
San Luis Obispo
2 mi se of Picacho
152
Comment
OBI15442
Soliva sessilis
Robert F. Hoover
1967-4-12
10426
San Luis Obispo
Upper Arroyo Grande
Comment
UC36505
Soliva sessilis
Alice King
May 1895
San Luis Obispo
Arroyo Grande
Comment
OBI38431
Sonchus asper
Eric Wise
1981-6-22
646
San Luis Obispo
Lopez Water Treatment Reservoir
Comment
OBI38432
Sonchus asper
Eric Wise
1981-6-22
634
San Luis Obispo
Lopez Water Treatment Reservoir
Comment
UCR147034
Sonchus asper subsp. asper
George K. Helmkamp, E. A. Helmkamp
2004-10-8
8839
San Luis Obispo
Central Coast, Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive and Arroyo Grande Creek
136
Comment
UC1070278
Sonchus oleraceus
N. K. Carlson
1936-3-19
158
San Luis Obispo
1.9 mi ese Picacho; Arroyo Grande Quad.
175
Comment Read comments Nov 9 2008
UCR132035
Sonchus oleraceus
George K. Helmkamp
2003-7-31
8070
San Luis Obispo
Central Coast, west edge of Nipomo Hill at junction of Cienaga Rd. and Valley View Road
15
Comment
UCR147033
Sonchus oleraceus
George K. Helmkamp, E. A. Helmkamp
2004-10-8
8838
San Luis Obispo
Central Coast, Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive and Arroyo Grande Creek
136
Comment
UCR146828
Sorghum bicolor
George K. Helmkamp, E. A. Helmkamp
2004-10-8
8843
San Luis Obispo
Central Coast, Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive and Arroyo Grande Creek
136
Comment
UCD99167
Spergula arvensis
W. L. Jepson
1941-4-17
20258
San Luis Obispo
San Luis Obispo County: Arryo Grande.
Comment
UCSC003832
Spergula arvensis
Unknown
unknown
s.n.
San Mateo
Half Moon Bay, 2 miles inland. Half Moon Bay
Comment
JEPS51206
Spergula arvensis subsp. arvensis
W. L. Jepson
1941-4-17
20258
San Luis Obispo
Arroyo Grande
Comment
UC1125828
Spergula arvensis subsp. arvensis
N. K. Carlson
1936-3-18
133
San Luis Obispo
0.6 mi. s.-s.w. Picacho (Plot 2); Arroyo Grande Quad.
Comment
CAS-BOT-BC390908
Spergularia marina
R. F. Hoover
1967-4-12
10422
San Luis Obispo
Upper Arroyo Grande
Comment
UC76378
Stachys ajugoides var. ajugoides
Miss M. Alice King
May, 1895
San Luis Obispo
Arroyo Grande
Comment
UC25940
Stachys bullata
Alice King
Apr. 1895
San Luis Obispo
Arroyo Grande
Comment
UC76163
Stachys bullata
Miss M. Alice King
April, 1895
San Luis Obispo
Arroyo Grande
Comment
RSA478162
Stellaria longipes
Anonymous
1930-4-19
s.n.
San Luis Obispo
Arroyo Grande
Comment
UCR140371
Stellaria media
George K. Helmkamp
2004-3-21
8384
San Luis Obispo
Central Coast, Mesa Dunes Mobile Home Park along Mesa View Dr., 0.2 mi south of the junction of Halcyon Rd., SE of Oceano
61
Comment
UCR161966
Stellaria media
George K. Helmkamp, E. A. Helmkamp
2005-2-14
8898
San Luis Obispo
Central Coast, Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive
122
Comment
CDA11605
Stenotaphrum secundatum
G. F. Hrusa, Marg. Griffiths, T. D. Wilfred
1995-6-22
12428
San Luis Obispo
Cultivated Plants; St. Augustine grass. Cultivated as lawn grass at Casitas Lane, Oceano. Brought here from florida in late 1970's and quickly filled entire yard. Well-established.
Comment
CDA17566
Stenotaphrum secundatum
Austin Griffiths
1980-11-16
s.n.
San Luis Obispo
on Casitas St., Oceano.
Comment
OBI66747
Stephanomeria elata
David J. Keil
2004-8-31
29103
San Luis Obispo
Arroyo Grande area. Ca. 0.5 miles off Lopez Drive on Hondonada Road.
Comment
OBI66748
Stephanomeria virgata
David J. Keil
2004-8-31
29104
San Luis Obispo
Arroyo Grande area. Ca. 0.5 miles off Lopez Drive on Hondonada Road.
Comment
UCR132042
Stephanomeria virgata subsp. pleurocarpa
George K. Helmkamp
2003-7-29
8042 B
San Luis Obispo
Central Coast, 0.6 mi south of Nipomo Hill in Arroyo Grande area
46
Comment
IRVC28948
Stephanomeria virgata subsp. virgata
G. K. Helmkamp
2003-9-21
8161
San Luis Obispo
Los Berros Rd, 0.9 mi SE of El Campo Rd., SE of Arroyo Grande Central Coast
46
Comment
UCR134691
Stephanomeria virgata subsp. virgata
George K. Helmkamp
2003-9-21
8161
San Luis Obispo
Central Coast, Los Berros Rd, 0.9 mi SE of El Campo Rd., SE of Arroyo Grande
46
Comment
UCR185198
Stipa pulchra
Michael Honer
2002-4-28
1623
San Luis Obispo
Santa Ynez-Santa Maria Basin, Coastal Plains; Approx. 4 mi. SE of Arroyo Grande, along Hwy 101
91
Comment
OBI73548
Stipa tenuissima
David J. Keil
2010-7-20
30922
San Luis Obispo
Along Thomas Hill Road, just south of Hondonada Road, east of Arroyo Grande
100
Comment
CAS-BOT-BC376049
Stylocline gnaphaloides
R. F. Hoover
1969-5-3
11299
San Luis Obispo
Upper Arroyo Grande
Comment
OBI15395
Stylocline gnaphaloides
Robert F. Hoover
1969-5-3
1299
San Luis Obispo
Upper Arroyo Grande
Comment
UC1927791
Symphyotrichum subulatum
David Keil
2001-11-14
29735
San Luis Obispo
Arroyo Grande, along western side of North Oak Park Boulevard just southwest of junction with Noyes Road and Old Oak Park Road (35.1413 N, 120.5995 W).
Comment
RSA0106596
Symphyotrichum subulatum var. elongatum
David J. Keil
2001-11-14
29735
San Luis Obispo
Arroyo Grande, along western side of North Oak Park Boulevard just SW of junction with Noyes Road and Old Oak Park Road.
37
Comment
UC1953332
Symphyotrichum subulatum var. elongatum
David Keil
2001-6-26
29624
San Luis Obispo
Arroyo Grande, Camino Mercado, ca. 0.2 mile north from junction with west Branch Street.
Comment
CDA25910
Symphyotrichum subulatum var. squamatum
David J. Keil
2001-11-14
29735
San Luis Obispo
Arroyo Grande, along western side of North Oak park Boulevard just southwest of junction with Noyes Road and Old Oak Park Road.
Comment Read comments Mar 16 2011
OBI59295
Symphyotrichum subulatum var. squamatum
David J. Keil
2001-6-26
29624
San Luis Obispo
Arroyo Grande, Camino Mercado, ca. 0.2 mile north from junction with west Branch Street.
Comment
UC76379
Tauschia hartwegii
Miss M. Alice King
1895-1
San Luis Obispo
Arroyo Grande
Comment
UC73300
Tetrapteron graciliflorum
Miss M. Alice King
May, 1895
San Luis Obispo
Arroyo Grande
Comment
CAS-BOT-BC66635
Thysanocarpus curvipes
R. F. Hoover
1967-3-5
10246
San Luis Obispo
Upper Arroyo Grande.
Comment
CAS-BOT-BC66636
Thysanocarpus curvipes
R. F. Hoover
1967-3-5
10246
San Luis Obispo
Upper Arroyo Grande.
Comment
OBI14856
Thysanocarpus curvipes subsp. elegans
Robert F. Hoover
1967-3-5
10246
San Luis Obispo
Upper Arroyo Grande
Comment
UC1127062
Thysanocarpus laciniatus
N. K. Carlson
1936-3-18
145
San Luis Obispo
.5 mi se Newsom Springs (Plot 3); Arroyo Grande Quad., se of Newsom Springs
137
Comment
UC20901
Torilis nodosa
Alice King
May 1895
San Luis Obispo
Arroyo Grande
Comment
OBI80087
Tragopogon porrifolius
David J. Keil
2012-8-21
31509
San Luis Obispo
Arroyo Grande. Vicinity of Arroyo Grande Creek near Bridge Street
25
Comment
SEINET7063675
Trifolium ciliolatum
A. G. Vestal
1947-4-16
s.n.
San Luis Obispo
About 2 miles east of Arroyo Grande on Route 227. UTM Zone 10, 724492mE, 3890635mN. (WGS84/NAD83).
64
Comment
UC165578
Trifolium depauperatum var. amplectens
Miss M. Alice King
1895-1
San Luis Obispo
Arroyo Grande
Comment
UC1130044
Trifolium gracilentum
N. K. Carlson
1936-3-18
124
San Luis Obispo
1 mi e Nipomo; Arroyo Grande quad
76
Comment
JEPS65897
Trifolium gracilentum var. gracilentum
W. L. Jepson
1941-4-17
20265
San Luis Obispo
Arroyo Grande
Comment
CDA17742
Trifolium incarnatum
Austin Griffiths, Kathleen G. Jones
1982-4-25
s.n.
San Luis Obispo
first house SW of State Hwy 1 and Halcyon Rd. intersection.
0
Comment
SEINET7063676
Trifolium variegatum
A. G. Vestal
1947-4-16
s.n.
San Luis Obispo
About 2 miles east of Arroyo Grande on Route 227. UTM Zone 10, 724492mE, 3890635mN. (WGS84/NAD83).
64
Comment
OBI75559
Trifolium variegatum var. major
Robert F. Hoover
1967-4-12
10421
San Luis Obispo
Upper Arroyo Grande
Comment
UC16815
Trifolium variegatum var. melananthum
Alice King
May, 1895
San Luis Obispo
Arroyo Grande
Comment
JEPS4373
Trifolium willdenovii
W. L. Jepson
1941-4-17
20254
San Luis Obispo
Arroyo Grande
Comment
UC4011
Trillium angustipetalum
W. H. Brewer
1861-4-13
438
San Luis Obispo
Arroyo Grande
Comment
OBI79625
Tropaeolum majus
Bryce Shaw, Sebastian Maldonado, Connor Muench
2014-5-18
1
San Luis Obispo
Strother Community Park in Arroyo Grande Creek, Walk down path from the park leading to the creek, on left side of trail.
45
Comment
OBI80097
Tropaeolum majus
David J. Keil
2012-8-21
31505
San Luis Obispo
Arroyo Grande. Vicinity of Arroyo Grande Creek near Bridge Street
25
Comment
OBI80945
Tropaeolum majus
Sammy Bueche, Anthony Campos, Mia Stornetta, Jessie Poletti, John Corotis and Andy Catanio
2015-4-24
2
San Luis Obispo
Strother Park. Hillside that gradually slopes into a flat area along the bank of the Arroyo Grande Creek
14
Comment
OBI81527
Tropaeolum majus
Jaymee Schienle, Kevin Allenstein, Tibo Smolders, Matt Wauters, Adriana Delucchi
2015-11-3
7
San Luis Obispo
Strothers Park.
Comment
CAS-BOT-BC73842
Tropidocarpum gracile
R. F. Hoover
1967-3-5
10243
San Luis Obispo
Upper Arroyo Grande.
Comment
OBI14837
Tropidocarpum gracile
Robert F. Hoover
1967-3-5
10243
San Luis Obispo
Upper Arroyo Grande
Comment
RSA212269
Tropidocarpum gracile
Robert F. Hoover
1967-3-5
10243
San Luis Obispo
Upper Arroyo Grande.
Comment
UC1127082
Tropidocarpum gracile
N. K. Carlson
1936-3-19
164
San Luis Obispo
2.2 mi ne Los Berros (Plot 6); Arroyo Grande Quadrangle
Comment
UC72941
Tropidocarpum gracile
Miss M. Alice King
April, 1895
San Luis Obispo
Arroyo Grande
Comment
OBI79960
Ulmus americana
David J. Keil, with V. L. Holland
2013-6-12
31802
San Luis Obispo
Arroyo Grande area off Lopez Drive in vicinity of Sweet Springs Mobile Home Park
Comment
OBI37358
Urtica dioica subsp. holosericea
Eric Wise
1981-6-22
648
San Luis Obispo
Lopez Water Treatment Reservoir
Comment
OBI79469
Urtica urens
David J. Keil
2011-12-11
31208
San Luis Obispo
Arroyo Grande. Southwest of intersection of P.C. Railway and E. Cherry Ave
39
Comment
OBI81018
Urtica urens
Sammy Bueche, Anthony Campos, Mia Stornetta, Jessie Poletti, John Corotis, Andy Catanio
2014-4-24
3
San Luis Obispo
Strother Park. Hillside that gradually slopes into a flat area along the bank of the Arroyo Grande Creek.
14
Comment
UCR158738
Urtica urens
George K. Helmkamp, E. A. Helmkamp
2005-4-17
9368
San Luis Obispo
Central Coast, Corbett Canyon, 2.3 miles north of Calif. Hwy 227 in Arroyo Grande
81
Comment
UCD137050
Venegasia carpesioides
R. N. Raynor
1938-7-4
s.n.
San Luis Obispo
San Luis Obispo County: Arroyo Grande Park.
Comment
UCD125990
Verbena lasiostachys
R. N. Raynor
1938-7-4
s.n.
San Luis Obispo
San Luis Obispo County: Arroyo Grande Park.
Comment
UCR140094
Verbena lasiostachys var. scabrida
George K. Helmkamp
2004-4-1
8418
San Luis Obispo
Central Coast, Nipomo Mesa; Mesa Dunes Mobile Home Park along Mesa View Dr., 0.2 mi south of Halcyon Rd.
76
Comment
OBI37700
Veronica anagallis-aquatica
Eric Wise
1981-6-22
640
San Luis Obispo
Lopez Water Treatment Reservoir
Comment
RSA522565
Veronica anagallis-aquatica
E. Wise
1981-6-22
653
San Luis Obispo
Lopez Water Treatment Reservoir.
Comment
OBI81471
Viburnum tinus
Adriana Delucchi, Jaymee Schienle, Kevin Allenstein, Tibo Smolders, Matt Wauters, Adriana Delucchi
2015-11-3
8
San Luis Obispo
Strothers Park
Comment
UC76453
Vicia hassei
Miss M. Alice King
Apr 1895
San Luis Obispo
Arroyo Grande
Comment
UC1121604
Viola pedunculata
H. C. Lee
1936-2-15
395
San Luis Obispo
1 mi se of Arroyo Grande
91
Comment
UC1121605
Viola pedunculata
N. K. Carlson
1936-3-18
129
San Luis Obispo
1 mi e of Nipomo Hill
76
Comment
CHSC30514
Vulpia bromoides
T. B. Devine
1980-4-5
672
San Luis Obispo
Along frontage road just E. of Hwy. 101 ca 1 mi. S. of Arroyo Grande. Roadcut beside pasture.
Comment
SD178087
Vulpia myuros
G. K. Helmkamp
2004-3-21
8387
San Luis Obispo
Central Coast; Mesa Dunes Mobile Home Park along Mesa View Dr., 0.2 mile south of the junction of Halcyon Road., southeast of Oceano.
60
Comment
UCR131932
Xanthium strumarium
George K. Helmkamp
2003-8-18
8093
San Luis Obispo
Central Coast, S of Arroyo Grande; along Mesa View Dr., 0.4 mi south of the junction of Cienaga and Valley View Rd.
30
Comment
UC20899
Yabea microcarpa
Alice King
May, 1895
San Luis Obispo
Arroyo Grande
Comment
OBI82459
Zeltnera davyi
David J. Keil, with V. L. Holland
2015-6-19
33258
San Luis Obispo
Rural area north of Arroyo Grande between Corbett Canyon Road and Highway 227, accessed via Dairy Lane and a private drive
125
Comment
UC1600870
Zigadenus fremontii
H. C. Lee
1936-2-17
402
San Luis Obispo
Picacho Hill San Luis Obispo National Forest, Arroyo Grande Quad
228
Comment