35.08402 35.18402 -120.60341 -120.50341 UC/JEPS: Consortium Search Results
Search Results — 770 specimen records retrieved (770 records with coordinates)
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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/consortium/).
 Records are made available under the CCH Data Use Terms.

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  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 Image available 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 Image available 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 Image available 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 Image available 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



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