Search Results — 1247 specimen records retrieved (1063 records with coordinates)
Results for search: Collector=Halse;   

Mapping Options:

BerkeleyMapper with county and bioregion layers
BerkeleyMapper without layers.
KML export
(Note: only records with coordinates are mappable)

Download Options:
Select all records · Select records with coordinates

Include annotations and voucher information

PLEASE NOTE: Due to changes in newer versions of Excel, directly copying text from the above selected results does not produce a usable table.
    Follow these steps:
      1. The contents of the selected results window must be copied into a text editor like TextEdit for Mac or WordPad for Windows
      2. The selected results must be saved as a new text document.
      3. This new text document can now be copied into Excel or imported as a tab delimited text file.

(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
 Records are made available under the CCH Data Use Terms.

Click on column header to sort data (* sorts by family); click in leftmost checkbox to select record. CCH Help Page.
Turn on yellow flags to show possible range discrepancies. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  SEINET3872659  Acacia dealbata Richard R. Halse 2011-3-23 8155 Monterey Along County Road G16 (Carmel Valley Road) ca 8.6 miles SE of its junction with State Hwy. 1.; 0 95 Comment
  SEINET944089  Acacia dealbata Richard R. Halse 1987-1 3373 Marin Mill Valley, on Silva Island, at the junction of U.S. Highway 101 and Seminary Drive 6 Comment
  SEINET946798  Acacia longifolia Richard R. Halse 1988-1 3539 Solano Vallejo, along Maritime Academy Drive near its junction with Sonoma Blvd. 36 Comment
  RSA724318  Acacia longifolia Richard Halse 1988-2-14 3539 Solano Vallejo, along Maritime Academy Drive near its junction with Sonoma Blvd. 36 Comment
  CHSC114431  Acacia pycnantha Richard R. Halse 2011-3-22 8153 San Luis Obispo Along State Hwy. 1 in Cambria near where the road crosses Santa Rosa Creek. 6 Comment
  SEINET3872632  Acacia pycnantha Richard R. Halse 2011-3-22 8153 San Luis Obispo Along State Hwy. 1 in Cambria near where the road crosses Santa Rosa Creek.; 0 6 Comment
  UC1982468  Acacia pycnantha Richard R. Halse 2011-3-22 8153 San Luis Obispo Along State Highway 1 in Cambria near where the road crosses Santa Rosa Creek Comment
  SEINET7760662 Image available Acer macrophyllum Richard R. Halse 2014-3-24 9018 Glenn Mendocino National Forest; along Road FH-7 ca. 10.8 miles west of its intersection with Road 306. 1098 Comment
  RSA0010485  Acer macrophyllum Richard R. Halse 2014-3-24 9018 Glenn Mendocino National Forest; along Road FH-7 ca.10.8 miles west of its intersection with Road 306. 1098 Comment
  SEINET11263261  Acer macrophyllum Richard R. Halse 2014-3-24 9018 Glenn Along Road FH-7 ca. 10.8 miles west of its intersection with Road 306.; 0 1098 Comment
  SEINET7893879  Acer macrophyllum R. R. Halse 2014-3-24 9018 Glenn Mendocino National Forest, along Road FH-7 ca. 10.8 mi W of its intersection with Road 306. 1098 Comment
  UC1779141  Achyronychia cooperi Richard R. Halse 2001-3-26 5952 San Bernardino just N of Twentynine Palms (Marine Corps Air-Ground Combat Center, Mainside Area) 557 Comment
  CHSC114036  Acmispon brachycarpus Richard R. Halse 2013-3-26 8747 Glenn Along the Elk Creek-Stonyford Road ca. 4.2 miles north of Stonyford. 321 Comment
  SEINET4208164  Acmispon brachycarpus Richard R. Halse 2013-3-26 8747 Glenn Along the Elk Creek-Stonyford Road ca. 4.2 miles north of Stonyford.; 0 321 Comment
  SEINET5327409  Acmispon brachycarpus R. R. Halse 2002-3-26 6146 Monterey Along State Hwy 198, 5.3 mi NW of Priest Valley; Mustang Ridge 661 Comment
  SEINET5585734  Acmispon brachycarpus R. R. Halse 2013-1 8747 Glenn Along the Elk Creek-Stonyford Road ca. 4.2 miles north of Stonyford. 321 Comment
  SEINET7836564  Acmispon brachycarpus R. R. Halse 2013-3-26 8747 Glenn Along the Elk Creek-Stonyford Road ca. 4.2 miles north of Stonyford. 321 Comment
  CHSC118648  Acmispon denticulatus Richard R. Halse 2016-5-29 9718 Siskiyou Along Hilt Road ca. 2.1 miles northwest of Hilt on the Oregon/California State Line. 876 Comment
  SEINET13759128  Acmispon denticulatus R. R. Halse 2016-5-29 9718 Siskiyou Along Hilt Road, ca 2.1 miles NW of Hilt on the OR/CA state line. 876 Comment
  SEINET7837369  Acmispon glaber var. glaber R. R. Halse 2012-3-26 8434 San Luis Obispo Along State Hwy. 1, ca. 2 miles south of San Simeon, just south of where San Simeon Creek enters the pacific Ocean. 3 Comment
  SEINET4673855  Acmispon heermannii Richard R. Halse 2012-3-26 8435 San Luis Obispo Along State Hwy. 1, ca. 2 miles south of San Simeon, just south of where San Simeon Creek enters the pacific Ocean.; 0 3 Comment
  CHSC114047  Acmispon heermannii var. orbicularis Richard R. Halse 2012-3-26 8435 San Luis Obispo Along State Hwy 1, ca 2 miles south of SanSimeon, just south of where San Simeon Creek enters the Pacific Ocean. 3 Comment
  GH404303  Acmispon heermannii var. orbicularis R. R. Halse 2012-3-26 8435 Unknown Along State Hwy. 1, ca. 2 miles south of San Simeon, just south of where San Simeon Creek enters the Pacific Ocean Comment
  SEINET7837370  Acmispon heermannii var. orbicularis R. R. Halse 2012-3-26 8435 San Luis Obispo Along State Hwy. 1, ca. 2 miles south of San Simeon, just south of where San Simeon Creek enters the Pacific Ocean. 3 Comment
  CHSC114031  Acmispon wrangelianus Richard R. Halse 2012-3-25 8420 San Benito Along State Hwy. 25 at its junction with the Coalinga Road. 580 Comment
  SEINET4208649  Acmispon wrangelianus Richard R. Halse 2012-3-26 8425 San Luis Obispo Along State Hwy. 1, ca. 2.7 miles north of San Simeon, just south of the turnoff to the Hearst Castle; ca. 6 miles north of Cambria.; 0 10 Comment
  SEINET7838466  Acmispon wrangelianus R. R. Halse 2012-3-26 8425 San Luis Obispo Along State Hwy. 1, ca. 2.7 miles north of San Simeon, just south of the turnoff to the Hearst Castle; ca. 6 miles north of Cambria. 10 Comment
  CAS-BOT-BC202653  Aesculus californica Richard R. Halse 1989-5-13 3831 Napa Along State Hwy. 29, 2.7 miles north of Calistoga; on the Calistoga Grade 240 Comment
  SEINET1908051  Aesculus californica Richard R. Halse 1989-1 3831 Napa Along State Hwy. 29, 2.7 miles north of Calistoga; on the Calistoga Grade 240 Comment
  SEINET6646612  Aesculus californica R. R. Halse 1989-5-13 3831 Napa Along State Hwy. 29, 2.7 miles north of Calistoga; on the Calistoga Grade 240 Comment
  GH404313  Ageratina adenophora R. R. Halse 2012-3-27 8443 Unknown Along State Hwy. 1, ca. 8.5 miles south of Gorda Comment
  SEINET6700663 Image available Ageratina adenophora R. R. Halse 2012-3-27 8443 Monterey Along State Hwy. 1, ca. 8.5 miles south of Gorda 169 Comment
  UC2029547  Ageratina adenophora Richard R. Halse 2012-3-27 8443 Monterey Along State Highway 1, ca. 8.5 miles south of Gorda Comment
  CDA43227  Allium triquetrum Richard R. Halse 2013-3-28 8768 Humboldt Along U.S. Hwy 101 ca. 1.0 miles west of Orick. 0 Comment
  CHSC114026  Allium triquetrum Richard R. Halse 2013-3-28 8768 Humboldt Along U.S. Hwy. 101 ca. 1.0 miles west of Orick. 4 Comment
  SEINET4208044  Allium triquetrum Richard R. Halse 2013-3-28 8768 Humboldt Along U.S. Hwy. 101 ca 1.0 miles west of Orick.; 0 4 Comment
  SEINET5586421  Allium triquetrum Richard R. Halse 2013-1 8768 Humboldt Along U.S. Hwy 101 ca. 1.0 miles west of Orick 4 Comment
  SEINET8191725  Allium triquetrum R. R. Halse 2013-3-28 8768 Humboldt Along US Hwy 101, ca 1.0 mile W of Orick. 4 Comment
  UC2029549  Allium triquetrum Richard R. Halse 2013-3-28 8768 Humboldt Along U. S. Highway 101 ca. 1.0 miles west of Orick Comment
  GH403602  Allophyllum gilioides Halse 2010-3-25 7849 Unknown Along State Hwy. 20 ca. 10.7 miles southwest of its junction with Interstate Hwy. 5 at Williams; in Salt Canyon Comment
  RSA783325  Allophyllum gilioides subsp. violaceum R. R. Halse 2010-3-25 7849 Colusa Along State Hwy 20 ca. 10.7 miles SW of its junction with Interstate Hwy 5 at Williams. In Salt Canyon. 154 Comment
  SEINET14407744  Allophyllum gilioides subsp. violaceum R. R. Halse 2010-3-25 7849 Colusa Along State Hwy 20 in Salt Canyon, ca 10.7 miles SW of its junction with I-5 at Williams. 154 Comment
  SEINET3872990  Allophyllum gilioides subsp. violaceum Richard R. Halse 2010-3-25 7849 Colusa Along State Hwy. 20 ca 10.7 miles southwest of its junction with Interstate Hwy. 5 at Williams; in Salt Canyon.; 0 154 Comment
  CDA3268  Amaranthus albus Richard R. Halse 2006-8-2 6981 Butte In the Lindo Channel Greenway where it crosses under Mangrove Avenue, Chico. Comment
  CDA43204  Amaranthus albus Richard R. Halse 2015-3-25 9375 Stanislaus Patterson; by the intersection of Speno Drive and Annamarie Ave. Comment
  RSA722695  Amaranthus albus Richard Halse 2006-8-2 6981 Butte Chico; in the Lindo Channel Greenway where it crosses under Mangrove Ave. 92 Comment
  SEINET3125082 Image available Amaranthus albus Richard R. Halse 2006-8-2 6981 Butte Chico; in the Lindo Channel Greenway where it crosses under Mangrove Ave. 92 Comment
  SEINET7903210  Amaranthus albus R. R. Halse 2006-8-2 6981 Butte Chico; in the Lindo Channel Greenway where it crosses under Mangrove Ave. 92 Comment
  UC2047372  Amaranthus albus Richard R. Halse 2015-3-25 9375 Stanislaus Patterson; by the intersection of Speno Drive and Annamarie Ave. Comment
  UCD97151  Amaranthus albus Richard R. Halse 2006-8-2 6981 Butte Chico, in the Lindo Channel Greenway where it crosses under Mangrove Ave. 92 Comment
  SEINET8204407  Amaranthus albus Richard R. Halse 2006-8-2 6981 Butte Chico; in the Lindo Channel Greenway where it crosses under Mangrove Ave. 92 Comment
  CDA36738  Amaranthus blitoides Richard R. Halse 2010-9-2 8110 Modoc Warner Mountains; Modoc National Forest; along State Hwy 299 ca 2.8 miles west of Cedarville by the Cedar Creek Lower Trailhead. Comment
  CHSC113818  Amaranthus blitoides Richard R. Halse 2010-9-2 8110 Modoc Warner Mountains; Modoc National Forest; along State Hwy. 299 ca. 2.8 miles west of Cedarville by the Cedar Creek Lower Trailhead. 1619 Comment
  RSA783326  Amaranthus blitoides R. R. Halse 2010-9-2 8110 Modoc Warner Mts: Modoc National Forest. Along State Hwy 299 ca. 2.8 miles west of Cedarville by the Cedar Creek Lower Trailhead. 1619 Comment
  SEINET3871799  Amaranthus blitoides Richard R. Halse 2010-9-2 8110 Modoc Warner Mountains; Modoc National Forest; along State Hwy. 299 ca 2.8 miles west of Cedarville by the Cedar Creek Lower Trailhead.; 0 1619 Comment
  SEINET7903489  Amaranthus blitoides R. R. Halse 2010-9-2 8110 Modoc Warner Mountains; Modoc National Forest; along State Hwy. 299 ca 2.8 miles west of Cedarville by the Cedar Creek Lower Trailhead. 1619 Comment
  CAS-BOT-BC174355  Ambrosia acanthicarpa Richard R. Halse 2010-8-26 8089 Lassen Along State Hwy. 70 at Beckwourth Pass ca. 4.3 miles west of its junction with U.S. Hwy. 395 or 1.6 miles east of Sierra Valley 1584 Comment
  SEINET3871758  Ambrosia acanthicarpa Richard R. Halse 2010-8-26 8089 Lassen Along State Hwy. 70 at Beckwourth Pass ca 4.3 miles west of its junction with U.S. Hwy. 395 or 1.6 miles E of Sierra Valley.; 0 1584 Comment
  UCD143900  Ambrosia acanthicarpa Richard R. Halse 2010-8-26 8089 Lassen along State Highway 70 at Beckwourth Pass around 4.3 miles west of its junction with US Highway 395 or 1.6 miles east of Sierra Valley. 1584 Comment
  CAS-BOT-BC35101  Ambrosia dumosa R. R. Halse 1978-3-27 1726 Inyo Along State Hwy. 190, 4.6 miles east of Panamint Springs, Panamint Valley 470 Comment
  UCD128791  Ambrosia dumosa Richard R. Halse 1978-3-27 1726 Inyo along State Hwy. 190, 4.6 miles east of Panamint Springs, in the Panamint Valley. 470 Comment
  CHSC109980  Amphiscirpus nevadensis Richard R. Halse 2010-8-25 8087 Lassen Along State Hwy. 139 ca. 26.2 miles north of Susanville on the northeast shore of Eagle Lake. 1559 Comment
  SEINET3872064  Amphiscirpus nevadensis Richard R. Halse 2010-8-25 8087 Lassen Along State Hwy. 139 ca 26.2 miles north of Susanville on the northeast shore of Eagle Lake.; 0 1559 Comment
  SEINET9183301  Amphiscirpus nevadensis R. R. Halse 2010-8-25 8087 Lassen Along State Hwy. 139 ca 26.2 miles north of Susanville on the northeast shore of Eagle Lake. 1559 Comment
  UCD146584  Amphiscirpus nevadensis Richard R. Halse 2010-8-25 8087 Lassen along State Highway 139 around 26.2 miles north of Susanville on the northeast shore of Eagle Lake. 1559 Comment
  SEINET11792282  Amsinckia douglasiana R. R. Halse 2011-3-22 8147 San Luis Obispo Along State Hwy. 1 ca 4.1 mi N of Guadalupe.; 0 48 Comment
  SEINET13978217  Amsinckia douglasiana R. R. Halse 2016-1 9665 San Luis Obispo Along State Hwy 1 at its junction with Via Concha S of Oceano. 20 Comment
  SEINET3871726  Amsinckia douglasiana Richard R. Halse 2011-3-22 8147 San Luis Obispo Along State Hwy. 1 ca 4.1 mi N of Guadalupe.; 0 48 Comment
  CDA43231  Amsinckia intermedia Richard R. Halse 2012-3-29 8457 Colusa Along State Highway 20 ca. 6.8 miles northeast of its junction with State Highway 16. Comment
  CHSC91870  Amsinckia intermedia Richard R. Halse 1988-2-20 3541 Contra Costa Along State Hwy. 4 near its junction with Balfour Road on the S edge of Brentwood. 23 Comment
  CHSC99453  Amsinckia intermedia Richard R. Halse 2007-3-23 7111 Sutter Along State Hwy. 20 ca. 7.9 miles west of Yuba City, east of Meridian. Roadside ditch. 12 Comment
  GH404317  Amsinckia intermedia R. R. Halse 2012-3-29 8457 Unknown Along State Hwy. 20 ca. 6.8 miles northeast of its junction with State Hwy. 16 Comment
  RSA0010480  Amsinckia intermedia Richard R. Halse 2014-3-24 9023 Glenn Along Road 306 on the north edge of Chrome. 284 Comment
  RSA0090976  Amsinckia intermedia R. R. Halse 2001-3-22 5944 Colusa Williams; along a vacant lot by 455-4th Street. 18 Comment
  SEINET11792775  Amsinckia intermedia R. R. Halse 2007-3-23 7111 Sutter Along State Highway 20 ca. 7.9 miles west of Yuba City, east of Meridian. 12 Comment
  SEINET12479829  Amsinckia intermedia R. R. Halse 1988-2-20 3541 Contra Costa Along State Hwy 4, near its junction with Balfour Road, S edge of Brentwood. 23 Comment
  SEINET3367923 Image available Amsinckia intermedia Richard R. Halse 2012-3-29 8457 Colusa Along State Hwy 20 ca 6.8 miles northeast of its junction with State Hwy 16 176 Comment
  SEINET7096533  Amsinckia intermedia Richard R. Halse 2001-3-22 5944 Colusa Williams; along a vacant lot by 455 - 4th street. 39 9.52 N 122 8.84W (Converted to decimal degrees). Elevation 18 m. 18 Comment
  SD169115  Amsinckia intermedia Richard Halse 1988-2-20 3541 Unknown 22 Comment
  SEINET12519155  Amsinckia intermedia Richard R. Halse 1988-1 3541 Contra Costa Along State Hwy. 4 near its junction with Balfour Road on the south edge of Brentwood 5 Comment
  CHSC85794  Amsinckia tessellata Richard R. Halse 2002-3-25 6134 Los Angeles Along State Hwy. 138, 5.3 miles W of its junction with State Hwy. 14; Antelope Valley. Road margins. 723 Comment
  UC2013784  Amsinckia tessellata Richard R. Halse 2002-3-25 6134 Los Angeles Along State Highway 138, 5.3 miles W of its junction with State Highway 14; Antelope Valley. Comment
  CHSC118646  Amsinckia vernicosa Richard R. Halse 2016-3-23 9677 Kings Along State Hwy. 269 ca. 0.6 miles north of Avenal. 288 Comment
  SEINET13762077  Amsinckia vernicosa R. R. Halse 2016-1 9677 Kings Along State Hwy 269 ca., 0.6 mi N of Avenal. 288 Comment
  CAS-BOT-BC368000  Antennaria rosea subsp. rosea Richard R. Halse 2006-8-4 6997 Modoc Modoc Naitonal Forest; south end of the Warner Mountains along Patterson Mill Road by Homestead Flat 2152 Comment
  CAS-BOT-BC102298  Anthemis cotula S. D. Halsey 1908-11-7 s.n. Santa Clara near Cooley's Landing, Palo Alto Comment
  CAS-BOT-BC289123  Anthoxanthum occidentale Richard R. Halse 1996-3-26 5020 Humboldt At junction of Bald Hills Road adn Holter Ridge Bike Route, 11 miles SE of U.S. Hwy. 101, Redwood National Park 708 Comment
  SEINET7614635 Image available Anthoxanthum occidentale Richard R. Halse 1996-1 5020 Humboldt Redwood National Park ; At junction of Bald Hills Road and Holter Ridge Bike Route 11 miles southeast of US Highway 101 708 Comment
  SEINET13948779 Image available Aphyllon fasciculatum Richard R. Halse 1976-1 1370 Alpine Along State Highway 89, 4.6 miles west of the summit of Monitor Pass; T9N, R21E, Sec. 4, 6,800 ft 2073 Comment
  RSA655716  Arabis hirsuta var. glabrata R. R. Halse 1976-6-13 1395 Plumas Plumas National Forest; along State Hwy 89, 5.6 miles NW of Greenville. 1281 Comment
  NY639723  Arabis holboellii var. pinetorum R. R. Halse 1977-5-22 1552 Plumas Along State Highway 89, 5.8 miles north of Quincy 960 Comment
  SEINET7408266 Image available Arctostaphylos canescens Richard R. Halse 2014-1 9019 Glenn Mendocino National Forest; along Road FH-7 ca. 10.8 miles west of ints intersection with Road 306. 1098 Comment
  RSA0010488  Arctostaphylos canescens Richard R. Halse 2014-3-24 9019 Glenn Medocino National Forest; along Road FH-7 ca.10.8 miles west of its intersection with Road 306. 1098 Comment
  CAS-BOT-BC24430  Arctostaphylos manzanita R. H. Halse 1987-2-22 3377 Napa Along State Hwy. 29 about one third mi. n. of its junction with Tubbs Lane, just n. of Calistoga. 51 Comment
  RSA523189  Arctostaphylos manzanita Richard Halse 1987-2-22 3377 Napa Along State Hwy. 29 about one third mile north of its junction with Tubbs Lane, just north of Calistoga. 168 Comment
  UCD52101  Arctostaphylos manzanita Richard R. Halse 1987-2-22 3377 Napa Along State Hwy. 29 about one third mile north of its junction with Tubbs Lane; just north of Calistoga. 168 Comment
  SEINET7408264 Image available Arctostaphylos manzanita subsp. elegans Richard R. Halse 2014-1 9014 Glenn Mendocino National Forest; along Road FH-7 ca. 9.4 miles west of its intersection with Road 306, at the Rattlesnake Firefighters Memorial 863 Comment
  SEINET8082027 Image available Arctostaphylos manzanita subsp. elegans Richard R. Halse 2014-3-24 9014 Glenn Mendocino National Forest; along Road FH-7 ca. 9.4 miles west of its intersection with Road 306, at the Rattlesnake Firefighters Memorial 863 Comment
  GH404777  Arctostaphylos manzanita subsp. elegans R. R. Halse 2014-3-24 9014 Unknown Mendocino National Forest; along Road FH-7 ca. 9.4 miles west of its intersection with Road 306m at the Rattlesnake Firefighters Memorial. T21N R7W Sec 20 Comment
  RSA0059212  Arctostaphylos manzanita subsp. elegans Richard R. Halse 2014-3-24 9013 Glenn Mendocino National Forest; along Road FH-7 ca. 9.4 miles west of its intersection with Road 306, at the Rattlesnake Firefighters Memorial. 863 Comment
  SEINET7258418  Arctostaphylos manzanita subsp. elegans R. R. Halse 2014-3-24 9013 Glenn Mendocino National Forest, along Road FH-7 ca. 9.4 mi W of its intersection with Road 306, at the Rattlesnake Firefighters Memorial. T 21N, R 7W, Sec. 20. 863 Comment
  GH404779  Arctostaphylos manzanita subsp. roofii R. R. Halse 2014-3-25 9034 Unknown Along the Bear Valley Road ca. 1.8 miles west northwest of its junction with State Hwy. 20 Comment
  RSA0010486  Arctostaphylos manzanita subsp. roofii Richard R. Halse 2014-3-25 9034 Colusa Along the Bear Valley Road ca.1.8 miles west northwest of its junction with State Hwy.20. 378 Comment
  SEINET11263262  Arctostaphylos manzanita subsp. roofii Richard R. Halse 2014-3-25 9034 Colusa Along the Bear Valley Road ca. 1.8 miles W NW of its junction with State Hwy 20.; 0 378 Comment
  SEINET7258424  Arctostaphylos manzanita subsp. roofii R. R. Halse 2014-3-25 9034 Colusa Along the Bear Valley Road ca. 1.8 mi WNW of its junction with State Hwy. 20. 378 Comment
  SEINET7760675 Image available Arctostaphylos manzanita subsp. roofii Richard R. Halse 2014-3-25 9034 Colusa Along the Bear Valley Road ca. 1.8 mi WNW of its junction with State Hwy. 20. 378 Comment
  SEINET11263264  Arctostaphylos manzanita var. elegans Richard R. Halse 2014-3-24 9013 Glenn Along Road FH-7 (State Hwy 162) ca. 9.4 miles W of its intersection with Road 306, at the Rattlesnake Firefighters Memorial.; 0 863 Comment
  CAS-BOT-BC46529  Arctostaphylos patula Richard R. Halse 1988-2-21 3551 Shasta Along Interstate hwy. 5, near the Flume Creek Road Exit, 4.1 mi. s. of Castella. 540 Comment
  SEINET8754043 Image available Arctostaphylos patula Richard R. Halse 2015-1 9325 Siskiyou Southern part of city, west side of Interstate Hwy. 5, off of Mountain View Drive. 1083 Comment
  UC1766224  Arctostaphylos patula Richard R. Halse 1988-2-21 3551 Shasta Along Interstate Hwy 5, near the Flume Creek Road Exit, 4.1 miles S of Castella. 540 Comment
  SEINET7263370  Arctostaphylos patula R. R. Halse 1988-2-21 3551 Shasta Along Interstate Highway 5, near the Flume Creek Road Exit, 4.1 miles south of Castella 540 Comment
  CHSC117378  Arctostaphylos patula subsp. patula Richard R. Halse 2015-3-21 9325 Siskiyou Weed; southern part of city, west side of Interstate Hwy. 5, off of Mountain View Drive. 1083 Comment
  SEINET7268673  Arctostaphylos viscida R. R. Halse 2002-3-21 6128 Shasta North shore of the Salt Creek Inlet of Shasta Lake; At the end of Statton Road, 1 mile west of its junction with Interstate Highway 5 333 Comment
  GH404306  Arctostaphylos viscida subsp. pulchella R. R. Halse 2012-3-29 8459 Unknown Along State Hwy. 20 just east of the Lake County Line, ca. 14.6 miles east of the junction with State Hwy. 53 Comment
  RSA724148  Arctostaphylos viscida subsp. viscida Richard Halse 2002-3-21 6128 Shasta At the end of Statton Road, 1 mile W of its junction with interstate Hwy. 5; N shore of the Salt Creek Inlet of Shasta lake. 333 Comment
  CAS-BOT-BC361309  Aristolochia californica Richard R. Halse 2013-3-27 8755 Napa Along State Hwy 128 ca. 5.3 miles E of its junction with State Hwy 121 at Moskowite Corners. 239 Comment
  GH404293  Aristolochia californica R. R. Halse 2013-3-27 8755 Unknown Along State Hwy. 128 ca. 5.3 miles east of its junction with State Hwy. 121 at Moskowite Corners Comment
  SEINET4208224  Aristolochia californica Richard R. Halse 2013-3-27 8755 Napa Along State Hwy. 128 ca. 5.3 miles east of its junction with State Hwy. 121 at Moskowite Corners.; 0 239 Comment
  SEINET5585704  Aristolochia californica Richard R. Halse 2013-1 8755 Napa Along State Hwy. 128 ca. 5.3 miles east of its junction with State Hwy. 121 at Moskowite Corners. 239 Comment
  SEINET6652453  Aristolochia californica R. R. Halse 2013-3-27 8755 Napa Along State Hwy. 128 ca. 5.3 miles east of its junction with State Hwy. 121 at Moskowite Corners. 239 Comment
  SEINET8368663  Artemisia cana Richard R. Halse 2006-8-4 6995 Modoc Modoc National Forest, Patterson Station Campground, ca. 15 air miles east of Likely, south end of the Warner Mountains. 2109 Comment
  CHSC96339  Artemisia cana subsp. bolanderi Richard R. Halse 2006-8-4 6995 Modoc Modoc National Forest, Patterson Station Campground, ca. 15 air miles east of Likely, south end of the Warner Mountains. 2109 Comment
  SEINET6775327 Image available Artemisia cana subsp. bolanderi R. R. Halse 2006-8-4 6995 Modoc Modoc National Forest, Patterson Station Campground, about 15 air miles east of Likely, south end of the Warner Mountains 2109 Comment
  SEINET8253630  Artemisia ludoviciana Richard R. Halse 2006-8-4 6994 Modoc Modoc National Forest, Patterson Station Campground, ca. 15 air miles east of Likely, south end of the Warner Mountains. 2109 Comment
  CHSC96351  Artemisia ludoviciana subsp. incompta Richard R. Halse 2006-8-4 6994 Modoc Modoc National Forest, Patterson Station Campground, ca. 15 air miles east of Likely, south end of the Warner Mountains. 2109 Comment
  SEINET7153178 Image available Artemisia ludoviciana subsp. incompta R. R. Halse 2006-8-4 6994 Modoc Patterson Station Campground, ca. 15 air miles east of Likely, south end of Warner Mountains. 2109 Comment
  CAS-BOT-BC90866  Artemisia pycnocephala Richard R. Halse 1989-5-14 3848 Del Norte Beach at the end of Kellogg Road, about 3 airline miles west of Fort Dick 3 Comment
  RSA730329  Artemisia pycnocephala R. R. Halse 1989-5-14 3848 Del Norte Beach at the end of Kellogg Road, ca. 3 air miles W of Fort Dick 3 Comment
  UC1766150  Artemisia pycnocephala Richard R. Halse 1989-5-14 3848 Del Norte Beach at the end of Kellogg Road, about 3 airline miles west of Fort Dick 3 Comment
  SEINET3369095 Image available Asarum caudatum Richard R. Halse 2011-3-25 8163 Humboldt Along U.Sl. Hwy 101 ca 2.8 miles S of Stafford, near Exit 674. 74 Comment
  SEINET3873461  Asarum caudatum Richard R. Halse 2011-3-25 8163 Humboldt Along U.S. Hwy 101 ca 2.8 miles south of Stafford, near Exit 674.; 0 74 Comment
  SEINET6652459  Asarum caudatum R. R. Halse 2011-3-25 8163 Humboldt Along U.Sl. Hwy 101 ca 2.8 miles S of Stafford, near Exit 674. 74 Comment
  SEINET955516  Asclepias cordifolia Richard R. Halse 1989-1 3819 Shasta Shasta National Recreation Area, on the north side of the Salt Creek Inlet of the Sacramento River Arm of Shasta Lake between Nelson Point and Oak Grove Campgrounds. 336 Comment
  CDA43228  Asphodelus fistulosus Richard R. Halse 2012-3-26 8439 San Luis Obispo Along State Highway 1 at the north edge of Cayucos, by exit 285. Comment
  CHSC114430  Asphodelus fistulosus Richard R. Halse 2011-3-22 8150 Santa Barbara Along State Hwy. 1 at its junction with Solomon Road, west of Santa Maria, ca. 8.9 miles south of Guadalupe. 58 Comment
  GH403188  Asphodelus fistulosus R. R. Halse 2011-3-22 8150 Unknown Along State Hwy. 1 at its junction with Solomon Road, west of Santa Maria, ca. 8.9 miles south of Guadalupe Comment
  GH403189  Asphodelus fistulosus R. R. Halse 2011-3-22 8150 Unknown Along State Hwy. 1 at its junction with Solomon Road, west of Santa Maria, ca. 8.9 miles south of Guadalupe Comment
  SEINET3873137  Asphodelus fistulosus Richard R. Halse 2011-3-22 8150 Santa Barbara Along State Hwy. 1 at its junction with Solomon Road, west of Santa Maria, ca 8.9 miles south of Guadalupe.; 0 58 Comment
  SEINET8193923  Asphodelus fistulosus R. R. Halse 2011-3-22 8150 Santa Barbara Along State Hwy. 1 at its junction with Solomon Road, west of Santa Maria, ca 8.9 miles south of Guadalupe. 58 Comment
  UC1982545  Asphodelus fistulosus Richard R. Halse 2011-3-22 8150 Santa Barbara Along State Hwy. 1 at its junction with Solomon Road, west of Santa Maria, ca. 8.9 miles south of Guadalupe. Comment
  UC1982546  Asphodelus fistulosus Richard R. Halse 2011-3-22 8150 Santa Barbara Along State Hwy. 1 at its junction with Solomon Road, west of Santa Maria, ca. 8.9 miles south of Guadalupe. Comment
  UCD170179  Asphodelus fistulosus Richard R. Halse 2012-3-26 8439 San Luis Obispo San Luis Obispo County: Along State Hwy. 1 at the north edge of Cayucos, by exit 285. 29 Comment
  UCD170180  Asphodelus fistulosus Richard R. Halse 2012-3-26 8439 San Luis Obispo San Luis Obispo County: Along State Hwy. 1 at the north edge of Cayucos, by exit 285. 29 Comment
  CAS-BOT-BC178768  Astragalus canadensis var. brevidens R. Halse 1991-7-28 4247 Lassen Along State Hwy. 139, on the northeast end of Eagle Lake, about 21 highway miles north of Susanville. 1558 Comment
  NY797392  Astragalus canadensis var. brevidens R. R. Halse 1991-7-28 4247 Lassen Along State Highway 139, on the northeast end of Eagle Lake, about 21 highway miles north of Susanville 1558 Comment
  RSA614427  Astragalus canadensis var. brevidens Richard Halse 1991-7-28 4247 Lassen along Hwy 139, NE end of Eagle Lake, 21 miles N of Susanville. 1558 Comment
  CAS-BOT-BC366914  Astragalus gambelianus Richard R. Halse 2013-3-27 8765 Colusa Along State Hwy. 20 just east of the Colusa/Lake County Line, ca. 14.6 miles E of the junction of State Hwys. 20 and 53 558 Comment
  SEINET4208041  Astragalus gambelianus Richard R. Halse 2013-3-27 8765 Colusa Along State Hwy. 20 just east of the Colusa/Lake County Line, ca. 14.6 miles east of the junction of the junction of State Hwys. 20 and 53.; 0 558 Comment
  UCD169698  Astragalus gambelianus Richard R. Halse 2013-3-27 8765 Colusa Along Highway 20 just east of the Colusa/Lake County Line ca. 14.6 miles east of the junction of State Highways 20 and 53. 558 Comment
  UC1779135  Astragalus lentiginosus var. variabilis Richard R. Halse 2001-3-26 5958 San Bernardino just N of Twentynine Palms (Marine Corps Air-Ground Combat Center, Mainside Area) 557 Comment
  SEINET13761602  Astragalus nuttallii R. R. Halse 2016-3-22 9671 Santa Barbara At the junction of State Hwy 1 and State Hwy 135, ca 12 miles N of Lompoc. 169 Comment
  CAS-BOT-BC226834  Astragalus oxyphysus Richard R. Halse 2002-3-26 6135 Fresno Along State Hwy. 198, 1 mile W of its junction with Interstate Hwy. 5, ca. 9 air miles NE of Coalinga 163 Comment
  CAS-BOT-BC226905  Astragalus oxyphysus Richard R. Halse 2002-3-26 6135 Fresno Along State Hwy. 198, 1 mile W of its junction with Interstate Hwy. 5, ca. 9 air miles NE of Coalinga 163 Comment
  CHSC85816  Astragalus oxyphysus Richard R. Halse 2002-3-26 6135 Fresno Along State Hwy. 198, 1 mile W of its junction with Interstate Hwy. 5, ca. 9 air miles NE of Coalinga. 163 Comment
  SEINET5326097  Astragalus oxyphysus R. R. Halse 2002-3-26 6135 Fresno along State Hwy. 198, 1 mi W of its junction with Interstate Hwy. 5, ca 9 air mi NE of Coalinga 163 Comment
  SEINET5326098  Astragalus oxyphysus R. R. Halse 2001-3-23 5948 Kern Tehachapi Mtns; along State Hwy. 58, 3 mi W of its junction with State Hwy 223 483 Comment
  UC1779144  Astragalus oxyphysus Richard R. Halse 2001-3-23 5948 Kern Tehachapi Mountains; along State Hwy. 58 three mi W of junction with State Hwy. 223 483 Comment
  SEINET4673433  Astragalus rattanii Richard R. Halse 2013-3-27 8764 Colusa Along State Hwy. 20 just east of the Colusa/Lake County Line, ca. 14.6 miles east of the junction of State Hwy. 20 and 53.; 0 558 Comment
  GH404308  Astragalus rattanii var. jepsonianus R. R. Halse 2013-3-27 8764 Unknown Along State Hwy. 20 just east of the Colusa/Lake County Line, ca. 14.6 miles east of the junction of State Hwys. 20 and 53 Comment
  SEINET4310286  Astragalus rattanii var. jepsonianus R. R. Halse 2013-3-27 8764 Colusa Along State Hwy. 20 just east of the Colusa/Lake County Line, ca. 14.6 miles east of the junction of the junction of State Hwys. 20 and 53 558 Comment
  SEINET5586429  Astragalus rattanii var. jepsonianus Richard R. Halse 2013-1 8764 Colusa Along State Hwy. 20 just east of the Colusa/Lake County Line, ca. 14.6 miles east of the junction of State Hwys. 20 and 53 558 Comment
  UC2029550  Astragalus rattanii var. jepsonianus Richard R. Halse 2013-3-27 8764 Colusa Along State Highway 20 just east of the Colusa/Lake County Line, ca. 14.6 miles east of the junction of State Highway 20 and 53 Comment
  UCD169731  Astragalus rattanii var. jepsonianus Richard R. Halse 2013-3-27 8764 Colusa Along State Hwy. 20 just east of the Colusa/Lake County Line, ca. 14.6 miles east of the junction of State Hwys. 20 and 53. 558 Comment
  SEINET948791  Astragalus whitneyi Richard R. Halse 1976-1 1401 Modoc Modoc National Forest above Upper Rush Creed Campground. 1585 Comment
  SEINET11193155  Athysanus pusillus R. R. Halse 2013-3-27 8763 Colusa Along Hwy 20 just E of the Colusa/Lake County line, ca 14.6 miles E of the junction of Hwy 20 and Hwy 53. 558 Comment
  SEINET4673879  Athysanus pusillus Richard R. Halse 2013-3-27 8763 Colusa Along State Hwy. 20 just east of the Colusa/Lake County Line, ca. 14.6 miles east of the junction of State Hwys. 20 and 53.; 0 558 Comment
  SEINET5586423  Athysanus pusillus Richard R. Halse 2013-1 8763 Colusa Along State Hwy. 20 just eat of the Colusa/Lake County Line, ca. 14.6 miles east of the junction of State Hwy. 20 and 53 558 Comment
  UC2029560  Athysanus pusillus Richard R. Halse 2013-3-27 8763 Colusa Along State Highway 20 just east of the Colusa/Lake County Line, ca. 14.6 miles east of the junction of State Highway 20 and 53 Comment
  UCR256431  Athysanus pusillus Richard R. Halse 2013-3-27 8763 Colusa along State Hwy 20 just east of the Colusa/Lake Co. line, c. 14.6 mi east of the junction of State Hwys 20 and 53 558 Comment
  UCD97441  Atriplex hymenelytra Richard R. Halse 1978-3-26 1725 Inyo along State Hwy. 190, 4.6 miles east of Panamint Springs, in the Panamint Valley. 470 Comment
  CDA43190  Avena fatua Richard R. Halse 2015-3-24 9355 San Luis Obispo Western end of the Santa Maria Valley, at the end of Oso Flaco Lake Road; ca. 5 air miles south of Oceano. Comment
  RSA724084  Avena fatua R. R. Halse 1988-2-21 3547 Solano Vallejo, in woody area along Maritime Academy Drive 36 Comment
  SEINET13752177 Image available Avena fatua Richard R. Halse 2015-1 9356 San Luis Obispo San Simeon, just north of the Motel 6 at 9070 Castillo Drive 17 Comment
  SEINET248905  Avena fatua Richard R. Halse 1988-2-21 3547 Solano Vellejo, in a weedy area long Maritime Academy Drive, near its junction with Sonoma Blvd. 36 Comment
  SEINET3919701  Avena fatua Richard R. Halse 1988-2-21 3547 Solano Vallejo, in a weedy area along Maritime Academy Drive, near its junction with Sonoma Blvd.; 0 36 Comment
  SEINET8753990 Image available Avena fatua Richard R. Halse 2015-3-24 9356 San Luis Obispo San Simeon, just north of the Motel 6 at 9070 Castillo Drive 17 Comment
  SEINET8941585  Avena fatua R. R. Halse 2015-1 9356 San Luis Obispo San Simeon, just N of the Motel 6 at 9070 Castillo Drive. 17 Comment
  RSA128831  Baccharis douglasii S. D. Halsey 1908-9-15 s.n. San Mateo Palo Alto Comment
  CHSC98782  Baccharis salicifolia Richard R. Halse 2007-3-25 7134 Colusa Along State Hwy. 20 ca. 7.8 miles northeast of its junction with State Hwy. 16, at base of Salt Canyon. Along Salt Creek. 100 Comment
  RSA730229  Baccharis salicifolia R. R. Halse 2007-3-25 7134 Colusa Along State Hwy. 20 ca. 7.8 miles northeast of its junction with State Hwy. 16, at base of Salt Canyon. 100 Comment
  SEINET7239582 Image available Baccharis salicifolia R. R. Halse 2007-3-25 7134 Colusa Along State Hwy. 20, ca. 7.8 miles NE of its junction with State Hwy. 16 at base of Salt Canyon 100 Comment
  UC1764785  Baileya pauciradiata Richard R. Halse 2001-3-26 5964 San Bernardino Just north of Twentynine Palms in Marine Corps Air-Ground Combat Center, Mainside Area. 557 Comment
  RSA722496  Balsamorhiza hookeri var. lagocephala Richard Halse 1989-5-6 3818 Siskiyou Along Old Hwy. 99, 3.2 to 6.2 miles S of Gazelle or 1.5 miles N of its junction with Old Stage Road. 912 Comment
  CAS-BOT-BC100054  Balsamorhiza lanata Richard R. Halse 1989-5-6 3818 Siskiyou Along Old Highway 99, 3.2 to 6.2 miles south of Gazelle, or 1.5 miles north of its junction with Old Stage Road 912 Comment
  GH403348  Balsamorhiza lanata R. H. Halse 1989-5-6 3818 Unknown Along old Hwy. 99, 3.2 to 6.2 miles S of Gazelle or 1.5 miles N of its junction with Old Stage Road. T 42N R 05W Sec 29 Comment
  SEINET7239835 Image available Balsamorhiza lanata R. R. Halse 1989-5-6 3818 Siskiyou Along Old HWY 99, 3.2 to 6.2 miles south of Gazelle or 1.5 mile north of its junction with Old Stage Road 912 Comment
  CDA36736  Bassia hyssopifolia Richard R. Halse 2010-8-25 8088 Lassen Along State Hwy 139 ca 26.2 miles north of Susanville on the northeast shore of Eagle Lake. Comment
  RSA783700  Bassia hyssopifolia R. R. Halse 2010-8-25 8088 Lassen Along State Hwy 139 ca. 26.2 mi N of Susanville on NE shore of Eagle Lake. 1559 Comment
  SEINET3872219  Bassia hyssopifolia Richard R. Halse 2010-8-25 8088 Lassen Along State Hwy. 139 ca 26.2 miles north of Susanville on the northeast shore of Eagle Lake.; 0 1559 Comment
  UCD146585  Bassia hyssopifolia Richard R. Halse 2010-8-25 8088 Lassen along State Highway 139 around 26.2 miles north of Susanville on the northeast shore of Eagle Lake. 1559 Comment
  RSA726250  Blennosperma nanum var. nanum R. R. Halse 2002-3-27 6160 Butte At the junction of State Highway 99 and Hamilton Nord Cana Highway. ca. 8 miles NW of Chico. 40 Comment
  CHSC118591  Blepharipappus scaber Richard R. Halse 2016-5-29 9717 Siskiyou Along Hilt Road ca. 2.1 miles northwest of Hilt on the Oregon/California State Line. 876 Comment
  SEINET8373180  Bolboschoenus maritimus Richard R. Halse 1988-6-12 3645 San Diego all around Batiquitos Lagoon, abotu 3 airline miles north of Encinitas. 3 Comment
  CHSC91447  Brassica rapa Richard R. Halse 1987-2-22 3374 Sonoma Along State Hwy. 121, .4 miles E of its junction with State Hwy. 116 at Big Bend in the Sonoma Valley. 6 Comment
  SEINET11195111  Brassica rapa R. R. Halse 1987-2-22 3374 Sonoma Sonoma Valley, along State Hwy 121, 0.4 mile E of its junction with State Hwy 116 at Big Bend. 6 Comment
  RSA723660  Brassica rapa R. R. Halse 1987-2-22 3374 Sonoma Along State Hwy 121, 0.4 mile E of its junction with State Hwy 116 at Big Bend in the Sonoma Valley. 6 Comment
  SEINET3885142  Brodiaea pulchella Richard R. Halse 1988-2-20 3544 Alameda Along Patterson Pass Road about 2.25 airline miles southwest of Midway.; 0 Comment
  RSA0060084  Bromus diandrus Richard R. Halse 2014-3-24 9025 Glenn Along Newville Road ca. 2.6 miles east of its junction with Road 306. 169 Comment
  SEINET6629075  Bromus diandrus R. R. Halse 2014-3-24 9025 Glenn Along Newville Road ca. 2.6 miles E of junction with Road 306. 169 Comment
  SEINET7254188 Image available Bromus diandrus Richard R. Halse 2014-1 9025 Glenn Along newville Road ca. 2.6 miles east of its junction with Road 306 Comment
  SEINET3922874  Bromus madritensis subsp. rubens Richard R. Halse 2002-3-21 6130 Colusa Williams; by junction of 5th Street and B Street.; 0 24 Comment
  RSA724142  Bromus rubens R. R. Halse 2002-3-21 6130 Colusa Williams; by junction of 5th Street and B Street. 24 Comment
  SEINET244463 Image available Bromus rubens Richard R. Halse 2002-3-21 6130 Colusa Williams; by junction on 5th Street and B Street; 24 Comment
  SEINET4404370  Bromus rubens R. R. Halse 2002-3-21 6130 Colusa Williams; by junction on 5th Street and B Street; 24 Comment
  CHSC118614  Cakile maritima Richard R. Halse 2016-3-21 9664 San Luis Obispo Along State Hwy. 1 ca. two miles south of San Simeon; just south of where San Simeon Creek enters the Pacific Ocean. 1 Comment
  SEINET13761521  Cakile maritima R. R. Halse 2016-1 9664 San Luis Obispo Along State Hwy 1 ca., 2 miles S of San Simeon; just S of where San Simeon Creek enters the Pacific Ocean. 1 Comment
  RSA783301  Calandrinia ciliata R. R. Halse 2010-3-20 7825 Colusa Along State Hwy 45 ca. 10 miles N of Colusa (junction of State Hwys 45 & 20). 22 Comment
  SEINET3872957  Calandrinia ciliata Richard R. Halse 2010-3-20 7825 Colusa Along State Hwy 45 ca 10 miles north of Colusa (junction of State Hwys. 45 & 20).; 0 22 Comment
  SEINET9097491  Calandrinia ciliata var. menziesii R. R. Halse 2010-3-20 7825 Colusa Along State Hwy 45 ca 10 miles N of Colusa (junction of State Hwys 45 & 20). 22 Comment
  SEINET6630131  Callistemon viminalis R. R. Halse 1989-5-12 3829 Solano Vallejo, junction of Maritime Academy Drive and Sonoma Blvd., at Motel 6 36 Comment
  CHSC96338  Calocedrus decurrens Richard R. Halse 2006-8-4 6999 Modoc Along Highgrade Road ca. 4.4 miles north of Fort Bidwell, north end of the Warner Mountains, east slope. 1765 Comment
  NY888169  Calocedrus decurrens R. R. Halse 2006-8-4 6999 Modoc This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  RSA722580  Calocedrus decurrens R. R. Halse 2006-8-4 6999 Modoc Along Highgrade Road ca. 4.4 miles north of Fort Bidwell, north end of the Warner Mountains, east slope 1765 Comment
  SEINET11051776  Calocedrus decurrens R. R. Halse 2006-8-4 6999 Modoc N end of the Warner Mountains, E slope, along Highgrade Road, ca 4.4 miles N of Fort Bidwell. 1765 Comment
  SEINET3863159 Image available Calocedrus decurrens Richard R. Halse 2006-8-4 6999 Modoc Along Highgrade Roade ca 4.4 mi N. of Fort Bidwell, north end of the Warner Mountains, east slope.; 0 1765 Comment
  UCD132874  Calocedrus decurrens Richard R. Halse 2006-8-4 6999 Modoc along Highgrade Road ca. 4.4 miles north of Fort Bidwell, north end of the Warner Mountains, east slope. 1765 Comment
  NY18977  Calocedrus decurrens R. R. Halse 1988-2-21 3552 Shasta This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  SEINET11051933  Calocedrus decurrens R. R. Halse 1988-2-21 3552 Shasta Along I-5, near the Flume Creek Road Exit, 4.1 miles S of Castella. 540 Comment
  SEINET3863114 Image available Calocedrus decurrens Richard R. Halse 1988-2-21 3552 Shasta Along Interstate Hwy 5, near the Flume Creek Road Exit, 4.1 miles south of Castella; tree 7.5 m tall.; 0 540 Comment
  CAS-BOT-BC488461  Calochortus amabilis Richard R. Halse 1989-5-13 3835 Lake Along State Hwy. 175, 4.7 miles northwest of Middletown 510 Comment
  SEINET3884896  Calochortus amabilis Richard R. Halse 1989-5-13 3835 Lake Along State Hwy. 175, 4.7 miles northwest of Middleton.; 0 510 Comment
  RSA523662  Calochortus amoenus Richard Halse 1989-5-13 3835 Lake Along state hwy 175, 4.7 mi NW of Middletown. 510 Comment
  RSA722488  Calochortus luteus R. R. Halse 1989-5-7 3820 Tehama Along Black Butte Road 7.1 miles southwest of its junction with State Highway A9 (Corning Road) or 1.8 miles north of its junction with Newville Road 150 Comment
  SEINET3885478  Calochortus luteus Richard R. Halse 1989-5-7 3820 Tehama Along Black Butte Road, 7.1 miles southwest of its junction with State Hwy. A9 (Corning Road) or 1.8 miles north of its junction with Newville Road.; 0 150 Comment
  CDA43182  Calystegia macrostegia subsp. cyclostegia Richard R. Halse 2015-3-23 9346 San Luis Obispo Along State Hwy. 1, ca. 5.8 miles south of Ragged Point or 6 miles north of San Simeon. Comment
  GH395168  Calystegia macrostegia subsp. cyclostegia R. R. Halse 2015-3-23 9346 Unknown Along State Hwy. 1, ca. 5.8 miles south of Ragged Point or 6 miles north of San Simeon Comment
  SEINET13752173 Image available Calystegia macrostegia subsp. cyclostegia Richard R. Halse 2015-1 9346 San Luis Obispo Along State Hwy. 1, ca. 5.8 miles south of Ragged Point or 6 miles north of San Simeon 14 Comment
  SEINET9001121  Calystegia macrostegia subsp. cyclostegia R. R. Halse 2015-3-23 9346 San Luis Obispo Along State Hwy 1, ca 5.8 miles S of Ragged Point, 6 miles N of San Simeon. 14 Comment
  CHSC114056  Calystegia macrostegia subsp. intermedia Richard R. Halse 2012-3-26 8438 San Luis Obispo Along State Hwy. 1 at the north edge of Cayucos, by exit 285. 29 Comment
  SEINET4673447  Calystegia macrostegia subsp. intermedia Richard R. Halse 2012-3-26 8438 San Luis Obispo Along State Hwy. 1 at the north edge of Cayucos, by exit 285.; 0 29 Comment
  SEINET7125868  Calystegia macrostegia subsp. intermedia R. R. Halse 2012-3-26 8438 San Luis Obispo Along State Hwy. 1 at the N edge of Cayucos, by exit 285. 29 Comment
  CAS-BOT-BC32042  Carex multicaulis R. R. Halse 2001-3-22 5942 Shasta Along Salt Creek Road ca 0.5 N of the Salt Creek/Gilmore Roads Exit off of Interstate Hwy 5 424 Comment
  SEINET3904183  Carex multicaulis Richard R. Halse 2001-3-22 5942 Shasta Along Salt Creek Road about 1/2 N of the Salt Creek/Gilmore Roads Exit off of Interstate Hwy 5.; 0 424 Comment
  SEINET7568454 Image available Carex multicaulis Richard R. Halse 2001-3-22 5942 Shasta Along Salt Creek Road about .5 N of the Salt Creek/Gilmore Roads Exit off of Interstate Hwy 5. 424 Comment
  SEINET12769914  Carex multicaulis R. C. Halse 2001-3-22 5942 Shasta Along Salt Creek Road about 1/2 N of the Salt Creek/Gilmore Roads Exit off of Interstate Hwy 5.; 0 424 Comment
  SEINET13390527  Carex multicaulis R. R. Halse 2001-3-22 5942 Shasta Along Salt Creek Road about o.5 N of the Salt Creek/Gilmore Roads Exit off of Interstate Hwy 5. 424 Comment
  CHSC114025  Castilleja applegatei subsp. pinetorum Richard R. Halse 2013-3-27 8753 Napa Along State Hwy. 128 ca. 8.7 miles west of Winters, just west of Monticello Dam, south end of Lake Berryessa. 143 Comment
  GH404305  Castilleja applegatei subsp. pinetorum R. R. Halse 2013-3-27 8753 Unknown Along State Hwy. 128 ca. 8.7 miles west of Winters, just west of Monticello Dam, south end of Lake Berryessa Comment
  SEINET13732897  Castilleja applegatei subsp. pinetorum R. R. Halse 2013-3-27 8753 Napa S end of Lake Berryessa, along State Hwy 128, ca 8.7 miles W of Winters, just W of Monticello Dam. 143 Comment
  SEINET4208213  Castilleja applegatei subsp. pinetorum Richard R. Halse 2013-3-27 8753 Napa Along State Hwy. 128 ca. 8.7 miles west of Winters, just west of Monticello Dam, south end of Lake Berryessa.; 0 143 Comment
  SEINET13772588  Castilleja exserta R. R. Halse 1989-1 3834 Napa Along State Hwy 28, on the Calistoga Grade, 2.7 miles N of Calistoga. 240 Comment
  SEINET903093  Castilleja exserta Richard R. Halse 1989-1 3834 Napa Along State highway 28, on the Calistoga Grade, 2.7 miles north of Calistoga. 240 Comment
  GH404301  Castilleja foliolosa R. R. Halse 2012-3-25 8422 Unknown Along State Hwy. 25 at its junction with the Coalinga Road Comment
  RSA783308  Castilleja foliolosa R. R. Halse 2011-3-25 8160 Colusa Along State Hwy 20 just E of the Lake County Line. ca. 14.6 miles E of its junction with State Hwy 53. 558 Comment
  SEINET14045906  Castilleja foliolosa R. R. Halse 2011-3-25 8160 Colusa Along State Hwy. 20 just E of the Lake County Line, ca 14.6 miles E of its junction with State Hwy 53. 558 Comment
  SEINET3873225  Castilleja foliolosa Richard R. Halse 2011-3-25 8160 Colusa Along State Hwy. 20 just east of the Lake County Line; ca 14.6 miles east of its junction with State Hwy. 53.; 0 558 Comment
  SEINET4890265  Caulanthus lasiophyllus R. R. Halse 1988-2-20 3545 Alameda Along Patterson Pass Road about 2.25 airline miles southwest of Midway 240 Comment
  GH403182  Ceanothus cuneatus R. R. Halse 2010-3-25 7851 Unknown Along State Hwy. 20 ca. 10.7 miles southwest of its junction with Interstate Hwy. 5 at Williams; in Salt Canyon Comment
  GH403191  Ceanothus cuneatus R. R. Halse 2011-3-23 8154 Unknown Along County Road G16 (Carmel Valley Road) ca. 10.5 miles northwest of its junction with County Road G17 Comment
  SEINET11191250  Ceanothus cuneatus var. cuneatus R. R. Halse 2011-3-23 8154 Monterey Along County Road G16 (Carmel Valley Road) ca. 10.5 miles northwest of junction with County Road G17. 365 Comment
  SEINET3873228  Ceanothus cuneatus var. cuneatus Richard R. Halse 2011-3-23 8154 Monterey Along County Road G16 (Carmel Valley Road) ca 10.5 miles northwest of its junction with County Road G17.; 0 365 Comment
  SBBG122843  Ceanothus cuneatus var. rigidus R. R. Halse 2010-3-24 7840 San Benito St Hwy 156 at jct with Buena Vista Rd by Hollister [probably planted] 75 Comment
  SBBG122844  Ceanothus cuneatus var. rigidus R. R. Halse 2010-3-24 7842 San Benito St Hwy 156 at jct with Buena Vista Rd by Hollister [probably planted] 75 Comment
  SEINET11191274  Ceanothus cuneatus var. rigidus R. R. Halse 2010-3-24 7842 San Benito Along Stat Hwy. 156 at its junction with Buena Vista Road by Hollister. 75 Comment
  SEINET3871936  Ceanothus cuneatus var. rigidus Richard R. Halse 2010-3-24 7840 San Benito Along State Hwy 156 at its junction with Buena Vista Road by Hollister.; 0 75 Comment
  CHSC111075  Ceanothus griseus Richard R. Halse 2010-3-24 7841 San Benito Along State Hwy. 156 at its junction with Buena Vista Road by Hollister. 75 Comment
  SEINET11191695  Ceanothus griseus R. R. Halse 2010-3-24 7841 San Benito Along State Hwy. 156 at its junction with Buena Vista Road by Hollister. 75 Comment
  SEINET3871932  Ceanothus griseus Richard R. Halse 2010-3-24 7841 San Benito Along State Hwy 156 at its junction with Buena Vista Road by Hollister.; 0 75 Comment
  UCD135896  Ceanothus jepsonii Richard R. Halse 2010-3-24 7840 San Benito Along State Hwy 156 at its junction with Buena Vista Road by Hollister. 75 Comment
Read comments
Jul 13 2018
  GH404316  Ceanothus oliganthus R. R. Halse 2013-3-27 8751 Unknown Along State Hwy. 128 ca. 8.7 miles west of Winters, just west of Monticello Dam, south end of Lake Berryessa Comment
  SEINET11191994  Ceanothus oliganthus var. oliganthus R. R. Halse 2013-3-27 8751 Napa Along State Hwy. 128 ca. 8.7 miles W of Winters, just west of Monticello Dam, south end of Lake Berryessa. 143 Comment
  SEINET4208225  Ceanothus oliganthus var. oliganthus Richard R. Halse 2013-3-27 8751 Napa Along State Hwy. 128 ca 8.7 miles west of Winters, just west of Monticello Dam, south end of Lake Berryessa.; 0 143 Comment
  UCD170123  Ceanothus oliganthus var. oliganthus Richard R. Halse 2013-3-27 8751 Napa Along State Hwy. 128 ca. 8.7 miles west of Winters, just west of Monticello Dam, south end of Lake Berryessa. 143 Comment
  CHSC111084  Ceanothus rigidus Richard R. Halse 2010-3-24 7842 San Benito Along State Hwy. 156 at its junction with Buena Vista Road by Hollister. 75 Comment
  CHSC114059  Ceanothus thyrsiflorus Richard R. Halse 2012-3-27 8441 San Luis Obispo Along State Hwy. 1, ca. 1.4 miles south of Ragged Point, near the spot where the Hwy. crosses over San Carpoforo Creek. 21 Comment
  SEINET11242875  Ceanothus thyrsiflorus R. R. Halse 2012-3-27 8441 San Luis Obispo Along State Hwy. 1, ca. 1.4 miles south of Ragged Point, near the spot where Hwy. crosses over San Carpoforo Creek. 21 Comment
  SBBG122842  Ceanothus thyrsiflorus var. griseus R. R. Halse 2010-3-24 7841 San Benito St Hwy 156 at jct with Buena Vista Rd by Hollister [probably planted] 75 Comment
  CDA1881  Cenchrus ciliaris D. Halsey 1978-2-1 s.n. Riverside Kapra Ranch, Indio. 0 Comment
  GH404299  Centromadia pungens R. R. Halse 2012-3-28 8454 Unknown Williams; along 5th Street between intersections with C and D Streets, near railroad tracks Comment
  CAS-BOT-BC222895  Cephalanthus occidentalis Richard R. Halse 2006-8-1 6976 Butte Chico; in the Lindo Channel Greenway where it crosses under Mangrove Ave. 92 Comment
  RSA722686  Cephalanthus occidentalis Richard R. Halse 2006-8-1 6976 Butte Chico. In the Lindo Channel Greenway where it crosses under Mangrove Ave. 92 Comment
  GH403174  Cercis canadensis R. R. Halse 2010-3-21 7829 Unknown Along State Hwy. 20 ca. 10.7 miles southwest of its junction with Interstate Hwy. 5 at Williams; in Salt Canyon Comment
  SEINET7347818  Cercis canadensis R. R. Halse 2007-3-22 7101 Shasta Along Gibson Road (Exit 714 off of Interstate Hwy.5) ca. .7 miles from I-5 above the Sacramento River. 417 Comment
  RSA730243  Cercis occidentalis Richard Halse 2007-3-22 7101 Shasta Along Gibson Road (Exit 714 off of Interstate Hwy. 5) ca. 7 miles from I-5 above the Sacramento River. 417 Comment
  GH404295  Cercocarpus betuloides R. R. Halse 2013-3-27 8754 Unknown Along State Hwy. 128 ca. 5.3 miles east of its junction with State Hwy. 121 at Moskowite Corners Comment
  SEINET6331974  Cercocarpus betuloides R. R. Halse 2013-3-27 8754 Napa Along State Hwy. 128 about 5.3 miles east of its junction with State Hwy. 121 at Moskowite Corners. 239 Comment
  SEINET6331976  Cercocarpus betuloides R. R. Halse 2002-3-26 6145 Monterey Along State HWY 198, 5.3 miles northwest of Priest Valley, Mustang Ridge 661 Comment
  CAS-BOT-BC433172  Cercocarpus betuloides var. betuloides Richard R. Halse 2014-3-24 9012 Glenn Mendocino National Forest; along Road FH-7 (State Hwy. 162) ca. 4.7 miles west of its junction with Road 306; northwest of Elk Creek. 464 Comment
  CHSC114041  Cercocarpus betuloides var. betuloides Richard R. Halse 2013-3-27 8754 Napa Along State Hwy. 128 ca. 5.3 miles east of its junction with State Hwy. 121 at Moskowite Corners. 239 Comment
  SEINET13256718 Image available Cercocarpus betuloides var. betuloides Richard R. Halse 2014-3-24 9012 Glenn Mendocino National Forest, along Road FH-7 (State Hwy 162) ca. 4.7 miles W of its junctino with Road 306. NW of Elk Creek. 464 Comment
  SEINET5586406  Cercocarpus betuloides var. betuloides Richard R. Halse 2013-1 8754 Napa Along State Hwy. 128 ca. 5.3 miles east of its junction with State Hwy. 121 at Moskowite Corners. 239 Comment
  UC2029551  Cercocarpus betuloides var. betuloides Richard R. Halse 2013-3-27 8754 Napa Along State Highway 128, ca. 5.3 miles eastt of its junction with State Highway 121 at Moskowite Corners Comment
  RSA0010559  Cercocarpus betuloides var. betuloides Richard R. Halse 2014-3-24 9012 Glenn Mendocino National Forest; along Road FH-7 (State Hwy. 162) ca. 4.7 miles west of its junction with Road 306; northwest of Elk Creek. 464 Comment
  CDA43191  Chenopodium album Richard R. Halse 2015-3-24 9358 San Luis Obispo Western end of the Santa Maria Valley, at the end of Oso Flaco Lake Road; ca. 5 air miles south of Oceano. Comment
  SEINET8918559  Chenopodium album R. R. Halse 2015-3-24 9358 San Luis Obispo W end of the Santa Maria Valley, at the end of Oso Flaco Lake Road, ca. 5 air miles S of Oceano. 3 Comment
  GH395171  Chenopodium berlandieri R. R. Halse 2015-3-24 9365 Unknown Western end of the Santa Maria Valley, at the end of Oso Flaco Lake Road; ca. 5 air miles south of Oceano Comment
  CAS-BOT-BC433231  Chenopodium californicum Richard R. Halse 2014-3-24 9024 Glenn Along Newville Road ca. 2.6 miles east of its junction with Road 306. 169 Comment
  CHSC116055  Chenopodium californicum Richard R. Halse 2014-3-24 9024 Glenn Along Newville Road ca 2.6 miles east of its junction with Road 306. 169 Comment
  GH404775  Chenopodium californicum R. R. Halse 2014-3-24 9024 Unknown Along Newville Road ca. 2.6 miles east of its junction with Road 306 Comment
  RSA730222  Chenopodium californicum R. R. Halse 2007-3-25 7128 Lake Along State Hwy 20 ca 7 miles NW of Clearlake Oaks or 11.4 miles SE of Upper Lake, at junction with Diane Ct. 396 Comment
  SEINET4152969  Chenopodium californicum R. Halse 2007-3-25 7128 Lake Along State HWY 20 about 7 miles northwest of Clearlake Oaks or 11.4 miles southeast of Upper Lake, at junction with Diane Ct. 396 Comment
  SEINET7250859  Chenopodium californicum Richard R. Halse 2014-3-24 9024 Glenn Along Newville Road ca. 2.6 mi E of its junction with Road 306. 169 Comment
  SEINET10426657 Image available Chenopodium californicum Richard R. Halse 2014-3-24 9024 Glenn Along Newville Road about 2.6 miles east of its junction with Road 306. 169 Comment
  SEINET9001796  Chenopodium murale R. R. Halse 2015-1 9365 San Luis Obispo W end of the Santa Maria Valley, at the end of Oso Flaco Lake Road, ca 5 air miles S of Oceano. 3 Comment
  CAS-BOT-BC246304  Chloropyron maritimum subsp. palustre S. D. Halsey 1908-9-15 s.n. Santa Clara Unspecified Comment
  CAS-BOT-BC246313  Chloropyron maritimum subsp. palustre S. D. Halsey 1908-10-1 s.n. San Mateo Redwood City Comment
  CAS-BOT-BC231978  Chorizanthe rigida Richard R. Halse 1975-6-11 1377 Mono Chalfant Valley; along U.S. Hwy. 6, about 18.5 mi. S. of Benton 1341 Comment
  SEINET7450655 Image available Chrysopsis villosa var. minor R. R. Halse 2010-8-26 8091 Lassen Along State HWY 70 at Beckwourth Pass about 4.3 miles west of its junction with US HWY 395 or 1.6 miles east of Sierra Valley 1584 Comment
  CHSC117379  Cistus incanus Richard R. Halse 2015-3-22 9330 Santa Clara Along State Hwy. 152 ca. 8.3 miles northeast of its junction with the Casa de Fruta Parkway. 259 Comment
  GH395146  Cistus incanus R. R. Halse 2015-3-22 9330 Unknown Along State Hwy. 152 ca. 8.3 miles northeast of its junction with the Casa de Fruta Parkway Comment
  SEINET8918623  Cistus incanus R. R. Halse 2015-3-22 9330 Santa Clara Along State Hwy 152, ca 8.3 miles NE of its junction with the Casa de Fruta Parkway. 259 Comment
  UC2047374  Cistus incanus Richard R. Halse 2015-3-22 9330 Santa Clara Along State Highway 152, ca. 8.3 miles northeast of its junction with the Casa de Fruta Parkway. Comment
  CHSC98788  Clarkia amoena subsp. huntiana Richard R. Halse 1989-5-13 3840 Mendocino Along U. S. Hwy 101 ca. 10.7 miles S of its junction with State Hwy 271 at the town of Cummings. 456 Comment
  RSA523661  Clarkia amoena subsp. huntiana R. R. Halse 1989-5-13 3840 Mendocino Along U.S. Highway 101, 10.7 miles south of its junction with State Highway 271 at the town of Cummings 456 Comment
  CAS-BOT-BC164147  Clarkia concinna Richard R. Halse 1989-5-7 3827 Colusa Along the Leesville Road, 3 miles southeast of Leesville, just below the summit of the pass on the east side 480 Comment
  SEINET4143383  Clarkia concinna R. R. Halse 1989-5-7 3827 Colusa Along the Leesville Road, 3 miles southeast of Leesville, just below the summit of the pass on the east side.; 0 480 Comment
  SEINET4149835  Clarkia unguiculata R. R. Halse 1989-5-13 3830 Napa Along State Hwy 29 on the Calistoga Grade, ca. 2.5 miles N of Calistoga 228 Comment
  RSA783322  Claytonia gypsophiloides R. R. Halse 2010-3-25 7853 Mendocino Along US Hwy 101 ca. 12 miles N of Willets or 8 miles S of Laytonville. 373 Comment
  SEINET3876755  Claytonia gypsophiloides Richard R. Halse 2010-3-25 7853 Mendocino Along US Hwy 101 ca 12 miles north of Willets or 8 miles south of Laytonville.; 0 373 Comment
  GH403186  Claytonia parviflora R. R. Halse 2011-3-21 8139 Unknown Along State Hwy. 25 ca. 1.4 miles north of the Monterey County Line or 12.9 miles north of its junction with State Hwy. 198 Comment
  CHSC113814  Claytonia parviflora subsp. parviflora Richard R. Halse 2011-3-21 8139 San Benito Along State Hwy. 25 ca. 1.4 miles north of the Monterey County Line or 12.9 miles north of its junction with State Hwy. 198. 328 Comment
  SEINET3873231  Claytonia parviflora subsp. parviflora Richard R. Halse 2011-3-21 8139 San Benito Along State Hwy. 25 ca 1.4 miles north of the Monterey County Line or 12.9 miles north of its junction with State Hwy. 198.; 0 328 Comment
  SEINET9117151  Claytonia parviflora subsp. parviflora R. R. Halse 2011-3-21 8139 San Benito Along State Hwy 25 ca 1.4 miles N of the Monterey County Line, 12.9 miles N of its junction with State Hwy 198. 328 Comment
  SEINET4208652  Claytonia parviflora subsp. viridis Richard R. Halse 2012-3-25 8424 San Benito Along State Hwy. 25, ca. 1.4 miles north of the Monterey County Line or 12.9 miles north of its junction with State Hwy. 198.; 0 328 Comment
  SEINET9126266  Claytonia parviflora subsp. viridis R. R. Halse 2012-3-25 8424 San Benito Along State Hwy 25, ca 1.4 miles N of the Monterey County Line, 12.9 miles N of its junction with State Hwy 198. 328 Comment
  SEINET3872960  Claytonia perfoliata var. perfoliata Richard R. Halse 2010-3-25 7854 Mendocino Along U.S. Hwy. 101 ca 12 miles north of Willets or 8 miles south of Laytonville.; 0 373 Comment
  GH395152  Clematis lasiantha R. R. Halse 2015-3-26 9379 Unknown Along State Hwy. 20 ca. 0.6 miles northeast of its junction with State Hwy. 53 or 3.2 miles east of Clearlake Oaks Comment
  SEINET15325519 Image available Clematis lasiantha Richard R. Halse 2015-1 9379 Lake Along State Hwy. 20 ca. 0.6 mi NE of its junction with State Hwy. 53 or 3.2 mi E of Clearlake Oaks. 519 Comment
  SEINET8942166  Clematis lasiantha R. R. Halse 2015-3-26 9379 Lake Along State Hwy 20, ca 0.6 mile NE of its junction with State Hwy 53, 3.2 miles E of Clearlake Oaks. 519 Comment
  UC2047375  Clematis lasiantha Richard R. Halse 2015-3-26 9379 Lake Along State Highway 20, ca. 0.6 miles northeast of its junction with State Highway 53 or 3.2 miles east of Clearlake Oaks. Comment
  SEINET13394076  Collinsia heterophylla R. R. Halse 2011-3-21 8140 San Benito Along State Hwy 25, ca 1.4 miles N of the Monterey County Line, 12.9 miles N of its junction with State Hwy 198. 328 Comment
  SEINET13406348  Collinsia sparsiflora R. R. Halse 2013-3-26 8743 Colusa Indian Valley, along the Leesville-Logoda Road ca. 5.5 miles S of Logoda, 3.2 miles N of the junction of the Leesville and Bear Valley Roads. 426 Comment
  GH404294  Collinsia sparsiflora var. collina R. R. Halse 2013-3-26 8743 Unknown Along the Leeville-Logoda Road ca. 5.5 miles south of Logoda, or 3.2 miles north of the junction of the Leesville and Bear Valley Roads; Indian Valley Comment
  SEINET4208220  Collinsia sparsiflora var. collina Richard R. Halse 2013-3-27 8759 Lake Along State Hwy. 20 ca. 0.4 miles west of the Colusa/ Lake County Line, at the Judge Davis Trailhead, Cache Creek Natural Area.; 0 530 Comment
  UCD170122  Collinsia sparsiflora var. collina Richard R. Halse 2013-3-27 8759 Lake Along State Hwy. 20 ca. 0.4 miles west of the Colusa/Lake County Line, at the Judge Davis Trailhead, Cache Creek Natural Area. 530 Comment
  SEINET4208221  Collinsia sparsiflora var. sparsiflora Richard R. Halse 2013-3-27 8756 Napa Along State Hwy. 128 ca 5.3 miles east of its junction with State Hwy. 121 at Moskowite Corners.; 0 239 Comment
  CHSC118597  Conium maculatum Richard R. Halse 2016-3-22 9668 San Luis Obispo Santa Maria Valley at the end of Oso Flaco Lake Road, ca. 5 air miles south of Oceano. 3 Comment
  SEINET13761614  Conium maculatum R. R. Halse 2016-3-22 9668 San Luis Obispo Santa Maria Valley, at the end of Oso Flaco Road, ca 5 air miles S of Oceano. 3 Comment
  CAS-BOT-BC287215  Cotula australis Richard R. Halse 1998-3-21 5307 Madera Hensley Lake Campground, NE of Madera, off of Road 407 168 Comment
  CDA10282  Cotula coronopifolia Richard R. Halse 2007-3-23 7109 Colusa Williams; by junction of 5th Street and B Street. N 39.1586 W 122.14724 Comment
  CHSC98784  Cotula coronopifolia Richard R. Halse 2007-3-23 7109 Colusa Williams: by junction of 5th Street and B Street. 25 Comment
  RSA730236  Cotula coronopifolia R. R. Halse 2007-3-23 7109 Colusa Williams; by junction of 5th Street and B Street 25 Comment
  SEINET7836975 Image available Cotula coronopifolia R. R. Halse 2007-3-23 7109 Colusa Williams; by junction of 5th Street and B Street. 25 Comment
  CHSC117391  Crassula connata Richard R. Halse 2015-3-22 9332 Santa Clara Along State Highway 152 ca. 8.3 miles north of its junction with Casa de Fruta Parkway. 259 Comment
  RSA0096943  Crassula connata R. R. Halse 2010-3-20 7827 Colusa Williams. By junction of 5th Street and B Street. 25 Comment
  SEINET3872208  Crassula connata Richard R. Halse 2010-3-20 7827 Colusa Williams; by junction of 5th Street and B Street.; 0 25 Comment
  SEINET8194448  Crassula connata R. R. Halse 2010-3-20 7827 Colusa Williams, junction of 5th Street and B Street 25 Comment
  CHSC118463  Crocidium multicaule Richard R. Halse 2016-3-24 9680 Mendocino Along U.S. Hwy. 101 ca. 5 miles south of Laytonville 469 Comment
  SEINET14147459 Image available Crocidium multicaule R. R. Halse 2016-3-24 9680 Mendocino Along US Hwy 101, ca 5 miles S of Laytonville. 469 Comment
  RSA0059645  Cryptantha ambigua Richard R. Halse 2004-8-8 6616 Lassen Along State Highway 139 ca. 6 miles north of Eagle Lake. 1710 Comment
  SEINET8518912  Cryptantha ambigua R. R. Halse 2004-7-8 6616 Lassen Along State Highway 139, ca 6 miles N of Eagle Lake. 1710 Comment
  UC1779123  Cryptantha angustifolia Richard R. Halse 2001-3-26 5960 San Bernardino just N of Twentynine Palms (Marine Corps Air-Ground Combat Center, Mainside Area) 557 Comment
  CHSC85826  Cryptantha clevelandii Richard R. Halse 2002-3-26 6143 Monterey Along State Hwy. 198, 5.3 miles NW of Priest Valley; Mustang Ridge. 661 Comment
  RSA726252  Cryptantha clevelandii Richard Halse 2002-3-26 6143 Monterey Along State Highway 198, 5.3 miles NW of Priest Valley; Mustang Ridge. 661 Comment
  SEINET12523937  Cryptantha clevelandii R. R. Halse 2002-3-26 6143 Monterey Mustang Ridge, along State Hwy 198, 5.3 miles NW of Priest Valley. 661 Comment
  SEINET4206979  Cryptantha clevelandii Richard R. Halse 2002-3-26 6143 Monterey Along State Hwy. 198, 5.3 miles NW of Priest Valley; Mustang Ridge.; 0 661 Comment
  CHSC118647  Cryptantha clevelandii var. clevelandii Richard R. Halse 2016-3-22 9669 Santa Barbara At the junction of State Hwy. 1 and State Hwy. 135, ca. 12 miles north of Lompoc. 169 Comment
  SEINET14043766  Cryptantha clevelandii var. clevelandii R. R. Halse 2016-3-22 9669 Santa Barbara At the junction of State Hwy 1 and State Hwy 135, ca. 12 mi N of Lompoc. 169 Comment
  CHSC113823  Cryptantha decipiens Richard R. Halse 2011-3-21 8134 San Benito Along State hwy. 25 ca. 1.4 miles north of the Monterey County Line or 12.9 miles north of its junction with State Hwy. 198. 328 Comment
  SEINET3873042  Cryptantha decipiens Richard R. Halse 2011-3-21 8134 San Benito Along State Hwy. 25 ca 1.4 miles north of the Monterey County Line or 12.9 miles north of its junction with State Hwy.; 0 328 Comment
  SEINET8519997  Cryptantha decipiens R. R. Halse 2011-3-21 8134 San Benito Along State Hwy 25, ca 1.4 miles N of the Monterey County Line, 12.9 miles N of its junction with State Hwy 198. 328 Comment
  CAS-BOT-BC174338  Cryptantha leiocarpa Richard R. Halse 2011-3-22 8148 Santa Barbara Along State Hwy.1 near its junction with State Hwy. 135 ca. 15 miles south of Guadalupe 149 Comment
  CHSC99461  Cryptantha leiocarpa Richard R. Halse 1989-5-14 3846 Del Norte Beach at the end of Kellogg Road, about 3 airline miles west of Fort Dick. Growing in sand dunes behind the foredune. 3 Comment
  GH403672  Cryptantha leiocarpa R. R. Halse 2011-3-22 8148 Unknown Along State Hwy. 1 near its junction with State Hwy. 135 ca. 15 miles south of Guadalupe Comment
  RSA523658  Cryptantha leiocarpa Richard Halse 1989-5-14 3846 Del Norte Beach at the end of Kellogg Road, about 3 airline miles west of Fort Dick 3 Comment
  SEINET12536828  Cryptantha leiocarpa R. R. Halse 2011-3-22 8148 Santa Barbara Along State Hwy 1 near its junction with State Hwy 135, ca 15 miles south of Guadalupe. 149 Comment
  SEINET3873043  Cryptantha leiocarpa Richard R. Halse 2011-3-22 8148 Santa Barbara Along State Hwy. 1 near its junction with State Hwy. 135 ca 15 miles south of Guadalupe.; 0 149 Comment
  SEINET241745  Cryptantha maritima Richard R. Halse 5965 San Bernardino Just north of Twentynine Plams in the Marine Corps Air-Ground Combat Center, Mainside Area 557 Comment
  SEINET8546232  Cryptantha maritima R. R. Halse 2001-3-26 5965 San Bernardino In the Marine Corps Air-Ground Combat Center, Mainside Area, just N of Twentynine Palms. 557 Comment
  UC1779131  Cryptantha maritima Richard R. Halse 2001-3-26 5959 San Bernardino just N of Twentynine Palms (Marine Corps Air-Ground Combat Center, Mainside Area) 557 Comment
  UC1779137  Cryptantha micrantha Richard R. Halse 2001-3-26 5950 San Bernardino just N of Twentynine Palms (Marine Corps Air-Ground Combat Center, Mainside Area) 557 Comment
  UC1779121  Cryptantha pterocarya Richard R. Halse 2001-3-26 5962 San Bernardino just N of Twentynine Palms (Marine Corps Air-Ground Combat Center, Mainside Area) 557 Comment
  RSA523186  Cupressus sargentii R. R. Halse 1987-2-22 3379 Lake Along State Highway 29, 0.4 mile north of the Napa/Lake county line, about 6 miles south of Middletown 444 Comment
  SEINET3863404 Image available Cupressus sargentii Richard R. Halse 1987-2-22 3379 Lake Along Hwy. 29, .4 miles north of the Napa/Lake county line, about 6 miles south of Middletown; tree 12-15 meters tall.; 0 444 Comment
  UCD133629  Cupressus sargentii Richard R. Halse 1987-2-22 3379 Lake Along State Hwy. 29, .4 miles north of the Napa/Lake county line, about 6 miles south of Middletown. 444 Comment
  NY16805  Cupressus sargentii R. R. Halse 1987-2-22 3379 Lake This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  SEINET11052543  Cupressus sargentii R. R. Halse 1987-2-22 3379 Lake Along Hwy 29, 0.4 mile N of the Napa/Lake County line, ca 6 miles S of Middletown. 444 Comment
  RSA130967  Cuscuta salina S. D. Halsey 1908-9-26 s.n. San Mateo near Cooley's Landing Comment
  CAS-BOT-BC433233  Cynoglossum grande Richard R. Halse 2014-3-25 9032 Colusa Along the Sites-Logoda Road ca. 4.7 miles northeast of Logoda; on the west end of Grapevine Pass. 527 Comment
  CHSC116060  Cynoglossum grande Richard R. Halse 2014-3-25 9032 Colusa Along the Sites-Logoda Road ca. 4.7 miles northeast of Logoda; on the west end of Grapevine Pass. 527 Comment
  GH404774  Cynoglossum grande R. R. Halse 2014-3-25 9032 Unknown Along the Sites-Logoda Road ca. 4.7 miles northeast of Logoda; on the west end of Grapevine Pass Comment
  RSA0060513  Cynoglossum grande Richard R. Halse 2014-3-25 9032 Colusa Along the Sites-Logoda Road ca. 4.7 miles northeast of Logoda; on the west end of Grapevine Pass. 527 Comment
  SEINET11262863  Cynoglossum grande Richard R. Halse 2014-3-25 9032 Colusa Along the Sites Logoda Road ca 4.7 miles NE of Logoda on the W end of Grapevine Pass.; 0 527 Comment
  RSA722302  Cytisus monspessulanus Richard Halse 2006-8-3 6986 Butte Along State Hwy. 32 ca. 16.3 miles northeast of Chico, near junction with Platte mountain Road. 1000 Comment
  CDA36734  Cytisus scoparius Richard R. Halse 2010-3-25 7856 Humboldt Along U.S. Hwy 101 ca. 9.7 miles south of Orick. Comment
  RSA783324  Cytisus scoparius R. R. Halse 2010-3-25 7856 Humboldt Along US Hwy 101 ca. 9.7 miles S of Orick. 5 Comment
  CAS-BOT-BC293851  Deinandra fasciculata Richard R. Halse 1988-6-13 3633 San Diego On the north side of Batiquitos Lagoon, which is about 3 airline miles north of Encinitas, at the end of Batiquitos Drive, just east of Interstate Hwy. 5 3 Comment
  CHSC92260  Deinandra fasciculata Richard R. Halse 1988-6-13 3633 San Diego On the N side of Batiquitos Lagoon, ca. 3 air miles N of Encinitas. 3 Comment
  UC1766266  Deinandra fasciculata Richard R. Halse 1988-6-13 3633 San Diego On the north side of Batiquitos Lagoon, which is about 3 airline miles north of Encinitas, at the end of Batiquitos Drive, just east of Interstate Hwy 5. Comment
  SEINET7838967 Image available Deinandra fasciculata R. R. Halse 1988-6-13 3633 San Diego North side of Batiquitos Lagoon, ca. 3 air miles N of Encinatas 3 Comment
  GH395164  Deinandra pallida R. R. Halse 2015-3-25 9372 Unknown Cottonwood Padd; along State Hwy. 41 ca. 0.9 miles west of the Kern County Line or 13.7 miles southwest of the junction of State Hwys. 41 & 33 Comment
  SEINET9001583 Image available Deinandra pallida R. R. Halse 2015-3-25 9372 San Luis Obispo Cottonwood Pass, along State Hwy 41, ca 0.9 miles W of the Kern County line, 13.7 miles SW of the junction of State Hwys 41 and 33. 606 Comment
  UC2047416  Deinandra pallida Richard R. Halse 2015-3-25 9372 San Luis Obispo Cottonwood Pass; along State Highway 41, ca. 0.9 miles west of the Kern County Line or 13.7 miles southwest of the junction of State Highways 41 and 33. Comment
  CHSC118587  Descurainia pinnata subsp. brachycarpa Richard R. Halse 2016-3-22 9673 Santa Barbara North of Lompoc; along Burton Mesa Road ca. 0.4 miles from its intersection with Harris Grade Road. 107 Comment
  SEINET13761508  Descurainia pinnata subsp. brachycarpa R. R. Halse 2016-1 9673 Santa Barbara N or Lompoc; along Burton Mesa Road ca., 0.4 miles from its intersection with Harris Grade Road. 107 Comment
  SEINET8693887 Image available Dichelostemma capitatum subsp. capitatum Richard R. Halse 2015-1 9339 Monterey Along U.S. Hwy. 101, west side of Hwy. at the Bradley Exit 176 Comment
  CAS-BOT-BC483251  Dichelostemma capitatum subsp. pauciflorum Richard R. Halse 1988-2-20 3544 Alameda Along Patterson Pass Road about 2.25 airline miles southwest of Midway 240 Comment
  CHSC93753  Dichelostemma volubile Richard R. Halse 1989-5-7 3826 Colusa Along the Leesville Road ca. 3 miles SE of Leesville. 480 Comment
  CAS-BOT-BC503141  Dichelostemma volubile Richard R. Halse 1989-5-7 3826 Colusa Along the Leesville Road, 3 miles southeast of Leesville; just below the summit of the pass on the east side. 480 Comment
  SEINET3885768  Dichelostemma volubile Richard R. Halse 1989-5-7 3826 Colusa Along the Leesville Road, 3 miles southeast of Leesville; just below the summit of the pass on the east side.; 0 480 Comment
  SEINET8476802  Dichelostemma volubile R. R. Halse 1989-5-7 3826 Colusa Along the Leesville Road, ca 3 miles SE of Leesville. 480 Comment
  CAS-BOT-BC150360  Diplacus aurantiacus Richard R. Halse 1989-5-13 3833 Napa Along State Hwy. 29, on the Calistoga Grade, 2.7 miles north of Calistoga 240 Comment
  GH395149  Diplacus aurantiacus R. R. Halse 2015-3-23 9341 Unknown Along State Hwy. 1 ca. 5.8 miles south of Ragged Point or 6 miles north of San Simeon Comment
  SEINET13693548  Diplacus aurantiacus R. R. Halse 1988-6-13 3632 San Diego On the N side of Batiquitos Lagoon, at the end of Batiquitos Drive, just E of I-5, ca 3 airline miles N of Encinitas. 1 Comment
  SEINET13693732  Diplacus aurantiacus R. R. Halse 1989-5-13 3833 Napa Along State Hwy 29 on the Calistoga Grade, ca 2.5 miles N of Calistoga. 240 Comment
  SEINET8693963 Image available Diplacus aurantiacus subsp. aurantiacus Richard R. Halse 2015-1 9341 San Luis Obispo Along State Hwy. 1, ca. 5.8 miles south of Ragged Point or 6 miles north of San Simeon. 14 Comment
  SEINET8390051  Diplacus mephiticus Richard R. Halse 1974-6-24 1048 Mono Inyo National Forest; along U.S. Hwy. 395 by the turnoff to Obsidian Dome, south of Hartley Springs Campground. 2438 Comment
  CAS-BOT-BC150881  Diplacus puniceus Richard R. Halse 1988-6-13 3632 San Diego On the north side of Batiquitos Lagoon, which is about 3 airline miles north of Encinitas, at the end of Batiquitos Drive, just east of Interstate Highway 5 3 Comment
  SEINET8409817  Diplacus puniceus Richard R. Halse 1988-6-13 3632 San Diego on the north side of Batiquitos Lagoon, which is about 3 airline miles north of Encinitas, at the end of Batiquitos Drive, just east of Interstate Highway 5. 3 Comment
  UC1779140  Dithyrea californica Richard R. Halse 2001-3-26 5951 San Bernardino just N of Twentynine Palms (Marine Corps Air-Ground Combat Center, Mainside Area) 557 Comment
  CAS-BOT-BC433232  Dodecatheon hendersonii Richard R. Halse 2014-3-25 9030 Colusa Along the Sites-Logoda Road ca. 4.7 miles northeast of Logoda; on the west end of Grapevine Pass. 527 Comment
  CHSC116063  Dodecatheon hendersonii Richard R. Halse 2014-3-25 9030 Colusa Along the Sites-Logoda Road ca. 4.7 miles northeast of Logoda; on the west end of Grapevine Pass. 527 Comment
  GH487991  Dodecatheon hendersonii R. R. Halse 2014-3-25 9030 Unknown Along the Sites-Logoda Road ca. 4.7 miles northeast of Logoda; on the west end of Grapevine Pass Comment
  RSA0060085  Dodecatheon hendersonii Richard R. Halse 2014-3-25 9030 Colusa Along the Sites-Logoda Road ca. 4.7 miles northeast of Logoda; on the west end of Grapevine Pass. 527 Comment
  SEINET11262864  Dodecatheon hendersonii Richard R. Halse 2014-3-25 9030 Colusa Along the Sites Logoda Road ca 4.7 miles NE of Logoda on the W end of Grapevine Pass.; 0 527 Comment
  SEINET8561748  Dodecatheon hendersonii R. R. Halse 2014-3-25 9030 Colusa W end of Grapevine Pass, along the Sites-Logoda Road, ca 4.7 miles NE of Logoda. 527 Comment
  SEINET8562040  Dodecatheon pulchellum R. R. Halse 1976-1 1391 Mono Near Big Alkali Lake, 3.1 miles NE of Whitmore. 2098 Comment
  RSA574802  Downingia insignis R. R. Halse 1975-6-20 1200 Lassen Along county road 502, 2.3 miles N of Ravendale. 1614 Comment
  CHSC101250  Dudleya edulis Richard R. Halse 1988-6-12 3640 San Diego On the north side of Batiquitos Lagoon, which is about 3 airline miles north of Encinitas, east of Interstate Hwy 5. 3 Comment
  RSA722301  Echinochloa colona R. R. Halse 2006-8-2 6985 Butte At edge of a driveway along Mangrove Ave. by its intersection with E. 7th Ave. 29 Comment
  SEINET3125710 Image available Echinochloa colona Richard R. Halse 2006-8-2 6985 Butte Chico; weedy area at edge of a driveway along Mangrove Ave. by its intersection with E. 7th Ave. 95 Comment
  SEINET3928558  Echinochloa colona Richard R. Halse 2006-8-2 6985 Butte Chico, CA, at edge of a driveway along Mangrove Ave. by intersection with E 7th Ave.; 0 95 Comment
  SEINET4568073  Echinochloa colona R. Halse 2006-8-2 6985 Butte Chico; driveway along Mangrove Ave. by its intersection with east 7th Ave. 95 Comment
  UCD72383  Echinochloa colona Richard R. Halse 2006-8-2 6985 Butte Chico, along Mangrove Ave. by its intersection with E. 7th Ave. 95 Comment
  SEINET8413190  Echinochloa colona Richard R. Halse 2006-8-2 6985 Butte Chico; weedy area at edge of a driveway along Mangrove Ave. by its intersection with E. 7th Ave. 95 Comment
  CDA43201  Echium candicans Richard R. Halse 2015-3-24 9370 San Luis Obispo San Simeon, just south of the Motel 6 at 9070 Castillo Drive, near its junction with State Hwy. 1. Comment
  CHSC111064  Echium candicans Richard R. Halse 2010-3-23 7834 Monterey Along State Hwy. 1 ca. 6 miles south of Big Sur or 16.4 miles northwest of Lucia. 141 Comment
  GH403177  Echium candicans R. R. Halse 2010-3-23 7834 Unknown Along State Hwy. 1 ca. 6 miles south of Big Sur or 16.4 miles northwest of Lucia Comment
  SEINET12570542  Echium candicans R. R. Halse 2010-3-23 7834 Monterey Along State Hwy 1, ca 6 miles S of Big Sur, 16.4 miles NW of Lucia. 141 Comment
  SEINET13752240 Image available Echium candicans Richard R. Halse 2015-1 9370 San Luis Obispo San Simeon, just north of the Motel 6 at 9070 Castillo Drive, near its junction with State Hwy. 1. 18 Comment
  SEINET3871722  Echium candicans Richard R. Halse 2010-3-23 7834 Monterey Along State Hwy. 1 ca 6 mi S of Big Sur or 16.4 mi NW of Lucia.; 0 141 Comment
  SEINET8753938 Image available Echium candicans Richard R. Halse 2015-1 9370 San Luis Obispo San Simeon, just south of the Motel 6 at 9070 Castillo Drive, near its junction with State Hwy. 1. 18 Comment
  UC2047384  Echium candicans Richard R. Halse 2015-3-24 9370 San Luis Obispo San Simeon, just south of the Motel 6 at 9070 Castillo Drive, near its junction with State Highway 1. Comment
  CDA43199  Ehrharta calycina Richard R. Halse 2015-3-24 9367 Santa Barbara Southwest of Guadalupe, along Brown Road (road to Point Sal) ca. 3.5 miles west of intersection with State Hwy 1; Casmalia Hills, Corralitos Canyon. Comment
  CHSC113816  Ehrharta calycina Richard R. Halse 2011-3-22 8146 San Luis Obispo Along State Hwy. 1 ca. 4.1 miles north of Guadalupe. 48 Comment
  SEINET13387186 Image available Ehrharta calycina Richard R. Halse 2015-1 9367 Santa Barbara Southwest of Guadalupe, along Brown Road (road to Point Sal) ca. 3.5 miles west of its intersection with State Hwy. 1; Casmalia Hills, Corralitos Canyon 188 Comment
  SEINET3873257  Ehrharta calycina Richard R. Halse 2011-3-22 8146 San Luis Obispo Along State Hwy. 1 ca 4.1 miles north of Guadalupe.; 0 48 Comment
  SEINET4568171  Ehrharta calycina R. Halse 2011-3-22 8146 San Luis Obispo Along State HWY1, about 4.1 miles north of Guadalupe 48 Comment
  SEINET8693870 Image available Ehrharta calycina Richard R. Halse 2015-1 9367 Santa Barbara Southwest of Guadalupe, along Brown Road (road to Point Sal) ca. 3.5 miles west of its intersection with State Hwy. 1; Casmalia Hills, Corralitos Canyon 188 Comment
  UC2047467  Ehrharta calycina Richard R. Halse 2015-3-24 9367 Santa Barbara Southwest of Guadalupe, along Brown Road (road to Point Sal) ca. 3.5 miles west of its intersection with State Highway 1; Casmalia Hills, Corralitos Canyon. Comment
  CHSC110162  Ehrharta erecta Richard R. Halse 1988-6-11 3643 San Diego On the south side of Batiquitos Lagoon, which is about 3 airline miles north of Encinitas. 4 Comment
  CDA2072  Elytrigia intermedia Richard R. Halse 2006-8-3 6993 Modoc Modoc National Forest, Patterson Station Campground, ca. 15 air miles east of Likely, south end of the Warner Mountains. Comment
  CAS-BOT-BC514402  Eriastrum densifolium subsp. mohavense Richard R. Halse 1974-6-24 1045 Inyo Along State Hwy 168, 10.7 mi W of its jct with US Hwy 295 in Bishop 2133 Comment
  RSA0124148  Eriastrum signatum R. R. Halse 2004-7-21 6669 Lassen At junction of U.S. Highway 395 and State Road A 26 ca. 11 miles southeast of Milford. 1274 Comment
  SEINET14592139  Eriastrum signatum R. R. Halse 2004-7-21 6669 Lassen At junction of US Hwy 395 and State Road A 26, ca 11 miles SE of Milford. 1274 Comment
  SEINET7356288  Eriastrum sparsiflorum Richard R. Halse 2004-7-21 6669 Lassen At junction of U.S. Hwy 395 and State Road A 26, ca 11 miles southeast of Milford.; 0 1274 Comment
  NY1012897  Eriastrum sparsiflorum var. sparsiflorum R. R. Halse 2004-6-21 6669 Lassen At Junction of U.S. Highway 395 and State Road A 26 ca. 11 miles southeast of Milford 1274 Comment
  UCD118329  Eriastrum wilcoxii Richard R. Halse 1974-6-24 1040 Inyo Along State Highway 168 in the foothills W of Bishop, 14.7 miles W of its junction with U.S. Highway 395 in Bishop. 2316 Comment
  GH403610  Erica lusitanica R. R. Halse 2010-3-25 7855 Unknown Along U.S. Hwy. 101 ca. 9.7 miles south of Orick Comment
  RSA783323  Erica lusitanica R. R. Halse 2010-3-25 7855 Humboldt Along US Hwy 101 ca. 9.7 miles S of Orick. 5 Comment
  SEINET4208167  Ericameria linearifolia Richard R. Halse 2013-3-26 8742 Colusa Along the Leesville-Logoda Road ca. 5.5 miles south of Logoda, or 3.2 miles north of the junction of the Leesville and Bear Valley Roads; Indian Valley.; 0 426 Comment
  SEINET7846193 Image available Ericameria linearifolia R. R. Halse 2013-3-26 8748 Glenn Along the Elk Creek-Stonyford Road ca. 4.8 miles north of Stonyford; slope above Stoney Creek. 318 Comment
  SBBG101261  Erigeron inornatus R. R. Halse 1991-7-28 4245 Modoc St Hwy 139, 13 mi NW of jct with St Hwy 299 1469 Comment
  CAS-BOT-BC49639  Erigeron inornatus var. inornatus R. R. Halse 1991-7-28 4245 Modoc Along State Hwy. 139, 13 mi. NW of its junction with State Hwy. 299. 1469 Comment
  GH404770  Eriodictyon californicum R. R. Halse 2014-3-24 9009 Unknown Mendocino National Forest; along Road FH-7 (State Hwy. 162) ca. 4.7 miles west of its junction with Road 306; northwest of Elk Creek. T21N R7W Sec 25 Comment
  RSA0063307  Eriodictyon californicum Richard R. Halse 2014-3-24 9009 Glenn Mendocino National Forest, along Road FH-7 (State Highway 162) ca. 4.7 miles west of its junction with Road 306; northwest of Elk Creek. 464 Comment
  SEINET5495497  Eriodictyon californicum R. Halse 1976-6-13 1398 Shasta Lassen National Forest, along State HWY 89, 10.3 miles southeast of its junction with State HWY 299. 1006 Comment
  SEINET3993833  Eriogonum fasciculatum var. foliolosum R. R. Halse 2012-3-26 8436 San Luis Obispo Along State Hwy 1, ca. 0.7 miles north of Cayucos 14 Comment
  SEINET4673847  Eriogonum fasciculatum var. foliolosum Richard R. Halse 2012-3-26 8436 San Luis Obispo Along State Hwy. 1, ca. 0.7 miles north of Cayucos.; 0 14 Comment
  CAS-BOT-BC259396  Eriogonum luteolum Richard R. Halse 2006-8-2 6983 Butte Chico; in the Lindo Channel Greenway where it crosses under Mangrove Ave. 92 Comment
  RSA722693  Eriogonum luteolum R. R. Halse 2006-8-2 6983 Butte Chico. In the Lindo Channel Greenway where it crosses under Mangrove Ave. 92 Comment
  SEINET5333742  Eriogonum luteolum R. R. Halse 2006-8-2 6983 Butte Chico; in the Lindo Channel Greenway where it crosses under Mangrove Ave. 92 Comment
  NY282106  Eriogonum microthecum var. laxiflorum R. R. Halse 1988-8-13 3756 Butte Along U.S. Hwy 20/26, 3.3 miles northeast of the entrance to Craters of the Moon National Monument, at milepost 233. 1680 Comment
Read comments
Feb 29 2016
  UC1982350  Eriogonum nudum Richard R. Halse 1974-6-26 1052 Sierra Tahoe National Forest; along State Hwy. 49, 10.2 miles W of Downievelle. Comment
  CAS-BOT-BC269829  Eriogonum nudum var. pubiflorum Richard R. Halse 1991-7-28 4244 Modoc Along State Hwy. 139, 13 miles northwest of its junction with State Hwy. 299 1469 Comment
  CDA36737  Eriogonum nudum var. pubiflorum Richard R. Halse 2010-9-2 8108 Modoc Warner Mountains; Modoc National Forest; along State Hwy 299 ca 2.8 miles west of Cedarville by the Cedar Creek Lower Trailhead. Comment
  CHSC92254  Eriogonum nudum var. pubiflorum Richard R. Halse 2004-7-22 6671 Modoc Along U.S. Hwy. 395, ca. 6 miles north of Alturas, on roadside cut. 1341 Comment
  NY716885  Eriogonum nudum var. pubiflorum R. R. Halse 2004-7-22 6671 Modoc Along U. S. Highway 395, ca. 6 miles north of Aturas 1341 Comment
  NY762343  Eriogonum nudum var. pubiflorum R. R. Halse 1991-7-28 4244 Modoc Along State Highway 139, 13 miles northwest of its junction with State Highway 299 1469 Comment
  RSA711072  Eriogonum nudum var. pubiflorum R. R. Halse 2004-7-22 6671 Modoc Along U.S. Highway 395, ca. 6 miles north of Alturas 1341 Comment
  SEINET11261578  Eriogonum nudum var. pubiflorum Richard R. Halse 2004-7-22 6671 Modoc Along U.S. Hwy 395, ca 6 miles north of Alturus.; 0 1341 Comment
  SEINET11261580  Eriogonum nudum var. pubiflorum Richard R. Halse 1991-7-28 4244 Modoc Along State Hwy 139, 13 miles northwest of its junction with State Hwy 299.; 0 1469 Comment
  SEINET5333097  Eriogonum nudum var. pubiflorum R. R. Halse 2004-7-22 6671 Modoc Along U.S. Hwy 395, ca. 6 miles north of Alturus 1341 Comment
  UCD100708  Eriogonum nudum var. pubiflorum Richard R. Halse 2004-7-22 6671 Modoc along US Hwy 395, 6 miles north of Alturus. 1341 Comment
  RSA614431  Eriogonum nudum var. pubiflorum R. R. Halse 1991-7-28 4244 Modoc Along State Highway 139, 13 miles NW of its junction with State Highway 299 1469 Comment
  SBBG101262  Eriogonum nudum var. pubiflorum R. R. Halse 1991-7-28 4244 Modoc St Hwy 139, 13 mi NW of its jct with St Hwy 299 1469 Comment
  UCD100705  Eriogonum nudum var. pubiflorum Richard R. Halse 1991-7-28 4244 Modoc along State Hwy. 139, 13 miles NW of its junction with State Hwy 299. 1469 Comment
  CAS-BOT-BC367999  Eriogonum roseum Richard R. Halse 2006-8-2 6984 Butte Chico; in the Lindo Channel Greenway where it crosses under Mangrove Ave. 92 Comment
  RSA722692  Eriogonum roseum Richard Halse 2006-8-2 6984 Butte Chico; in the Lindo Channel Greenway where it crosses under Mangrove Ave. 92 Comment
Read comments
Jan 26 2017
  SEINET5333734  Eriogonum roseum R. R. Halse 2006-8-2 6984 Butte Chico; in the Lindo Channel Greenway where it crosses under Mangrove Ave. 92 Comment
  SEINET8339333  Eriogonum roseum Richard R. Halse 2006-8-2 6984 Butte Chico; in the Lindo Channel Greenway where it crosses under Mangrove Ave. 92 Comment
  SEINET13761715  Eriogonum sphaerocephalum var. halimioides R. R. Halse 2016-5-29 9723 Siskiyou Along Hilt Road, E of Hilt. 902 Comment
  CHSC118625  Eriogonum sphaerocephalum var. halimioides Richard R. Halse 2016-5-29 9723 Siskiyou Along Hilt Road east of Hilt. 902 Comment
  RSA783306  Eriogonum umbellatum var. nevadense R. R. Halse 2010-8-26 8092 Sierra Along State Hwy 49 ca. 7.6 miles W of Loyalton or ca. 5 miles N of Sierraville. 1508 Comment
  SEINET3872980  Eriogonum umbellatum var. nevadense Richard R. Halse 2010-8-26 8092 Sierra Along State Hwy. 49 ca 7.6 miles west of Loyalton or ca 5 miles north of Sierraville.; 0 1508 Comment
  SEINET5341984  Eriogonum umbellatum var. nevadense R. R. Halse 2010-8-26 8092 Sierra Along State Hwy 49 ca. 7.6 miles west of Loyalton or ca. 5 miles north of Sierraville. 1508 Comment
  SEINET3872965  Eriogonum vimineum Richard R. Halse 2010-8-25 8084 Modoc Along State Hwy. 139 ca 25.5 miles northwest of its junction with State Hwy. 299; Modoc National Forest.; 0 1278 Comment
  SEINET5341981  Eriogonum vimineum R. R. Halse 2010-8-25 8084 Modoc Along State Hwy 139 ca. 25.5 miles northwest of its junction with State Hwy. 299, Modoc National Forest 1278 Comment
  SEINET9001543 Image available Eriophyllum confertiflorum var. confertiflorum R. R. Halse 2015-3-25 9371 San Luis Obispo Cottonwood Pass, along State Hwy 41, ca 0.9 miles W of the Kern County line, 13.7 miles SW of the junction of State Hwys 41 and 33. 606 Comment
  CHSC118626  Eriophyllum staechadifolium Richard R. Halse 2016-3-21 9661 San Luis Obispo Along State Hwy. 1, ca. 3 miles north of San Simeon. 7 Comment
  SD260891  Eriophyllum staechadifolium Richard R. Halse 2016-3-21 9661 San Luis Obispo Along State Hwy 1, ca. 3 milse orth of San Simeon 7 Comment
  SEINET13761534 Image available Eriophyllum staechadifolium R. R. Halse 2016-3-21 9661 San Luis Obispo Along State Hwy 1 ca., 3 miles N of San Simeon. 1 Comment
  SEINET4208519  Eriophyllum staechadifolium Richard R. Halse 2012-3-26 8428 San Luis Obispo Along State Hwy. 1, ca. 2.7 miles north of San Simeon, just south of the turnoff to the Hearst Castle; ca. 6 miles north of Cambria.; 0 10 Comment
  SEINET8687415 Image available Eriophyllum staechadifolium R. R. Halse 2012-3-26 8428 San Luis Obispo Along State Hwy. 1, ca. 2.7 miles north of San Simeon, just south of the turnoff to the Hearst Castle; ca. 6 miles north of Cambria.; 0 10 Comment
  CHSC118461  Erodium botrys Richard R. Halse 2016-3-20 9652 Santa Clara Along State Hwy. 152 ca. 9.7 miles northeast of its junction with State Hwy. 156 or 8.3 miles northeast of the junction with the Casa de Fruta Parkway. 259 Comment
  RSA726264  Erodium botrys R. R. Halse 2002-3-27 6154 Butte At the junction of State Highway 99 and Hamilton Nord Cana Highway. ca. 8 miles NW of Chico. 40 Comment
  SD260966  Erodium botrys Richard R. Halse 2016-3-21 9660 San Luis Obispo Along State Hwy. 1 at a vista point, ca. 11.8 miles north of San Simeon. 2 Comment
  SEINET14188824  Erodium botrys R. R. Halse 2016-3-20 9652 Santa Clara Along State Hwy 152 ca. 9.7 mi NE of its junction with State Hwy 156 or 8.3 mi NE of the junction with the Casa de Fruta Parkway 259 Comment
  SEINET244631  Erodium botrys Richard R. Halse 2002-3-27 6154 Butte At the junction of State Hwy. 99 and Hamilton Nord Cana Hwy. Ca. 8 miles NW of Chico. 40 Comment
  SEINET8526725  Erodium botrys R. R. Halse 2002-3-27 6154 Butte At the junction of State Hwy 99 and Hamilton Nord Cana Hwy ca. 8 miles NW of Chico Comment
  SEINET7057334  Erodium botrys Richard R. Halse 2002-3-27 6154 Butte At the junction of State Highway 99 and Hamilton Nord Cana Highway ca. 8 miles northwest of Chico. Elevation 40 meter. 40 Comment
  CDA28422  Erodium brachycarpum Richard R. Halse 2007-3-22 7107 Colusa Williams; by junction of 5th Street and B Street. Comment
  CHSC118650  Erodium brachycarpum Richard R. Halse 2016-3-19 9650 Tehama Along Newville Road ca 8.2 miles northwest of its junction with Interstate Hwy. 5 at Orland; northeast end of Black Butte Reservoir, near spillway to Stony Creek. 113 Comment
  CHSC85819  Erodium brachycarpum Richard R. Halse 2002-3-27 6154 Butte At the junction of State Hwy. 99 and Hamilton Nord Cana Hwy. ca. 8 miles NW of Chico. 40 Comment
  SEINET14188802  Erodium brachycarpum R. R. Halse 2016-1 9650 Tehama Along Newville Rd ca. 8.2 mi NW of its junction with Interstate Hwy 5 at Orland; NE end of Black Butte Reservoir, near spillway to Stony Creek 113 Comment
  SEINET255492  Erodium brachycarpum Richard R. Halse 2007-3-22 7102 Shasta Along Gibson Road (Exit 714 off of Interstate Hwy.5) ca. .7 miles from I-5 above the Sacramento River. 417 Comment
  SEINET5585685  Erodium brachycarpum Richard R. Halse 2013-1 8758 Napa Along the Chiles and Pope Valley Road ca. 4.7 miles northwest of its junction with the Lower Chiles Valley Road. 230 Comment
  SEINET8526911  Erodium brachycarpum R. R. Halse 2007-3-22 7107 Colusa Williams; by junction of 5th Street and B Street 25 Comment
  UC1952528  Erodium brachycarpum Richard R. Halse 2007-3-22 7102 Shasta Along Gibson Road (Exit 714 off of Interstate Hwy 5) ca. 0.7 mi from I-5 above the Sacramento River 417 Comment
  RSA730242  Erodium brachycarpum R. R. Halse 2007-3-22 7107 Colusa Williams; by junction of 5th Street and B Street. 25 Comment
  CHSC118645  Erodium cicutarium Richard R. Halse 2016-3-20 9651 Santa Clara Along State Hwy. 152 ca. 9.7 miles northeast of its junction with State Hwy. 156 or 8.3 miles northeast of the junction with the Casa de Fruta Parkway. 259 Comment
  SEINET13978229  Erodium cicutarium R. R. Halse 2016-3-20 9651 Santa Clara Along State Hwy 152 ca. 9.7 mi NE of its junction with State Hwy 156 or 8.3 mi NE of the junction with the Casa de Fruta Parkway. 259 Comment
  CHSC118651  Erodium moschatum Richard R. Halse 2016-3-21 9663 San Luis Obispo San Simeon; along State Hwy. 1 by its intersection with Castillo Drive. 18 Comment
  RSA669478  Erodium moschatum R. R. Halse 2001-3-22 5943 Colusa Williams, along vacant lot by 455-4th street. 18 Comment
  SEINET14188819  Erodium moschatum R. R. Halse 2016-1 9663 San Luis Obispo San Simeon; along State Hwy 1 by its intersection with Castillo Dr 18 Comment
  SEINET8566769  Erodium moschatum Richard R. Halse 2001-3-22 5943 Colusa Williams, along vacant lot 455, 4th Street. 18 Comment
  CAS-BOT-BC54722  Erysimum concinnum Richard R. Halse 1989-5-14 3849 Del Norte Beach at the end of Kellogg Road, about 3 air miles west of Fort Dick. 3 Comment
  CHSC62071  Erysimum concinnum Richard R. Halse 1989-5-14 3849 Del Norte Beach at the end of Kellogg Road, about 3 airline miles west of Fort Dick, on sand dunes. 3 Comment
  RSA730336  Erysimum concinnum R. R. Halse 1989-5-14 3849 Del Norte Beach at the end of Kellogg Road, ca 3 airmiles W of Fort Dick. 3 Comment
  CHSC118601  Erysimum suffrutescens Richard R. Halse 2016-3-22 9667 San Luis Obispo Along boardwalk to the beach at the Oso Flaco Lake Recreation Area, ca. 5 air miles south of Oceano. 4 Comment
  SEINET13761522  Erysimum suffrutescens R. R. Halse 2016-3-22 9667 San Luis Obispo Oso Flaco Lake Recreation Area, along boardwalk to beach, ca 5 air miles S of Oceano. 4 Comment
  SEINET8245399  Erythranthe rubella Richard R. Halse 1978-3-27 1728 Inyo along U.S. Hwy. 395, 13.7 miles north of Independence, Owens Valley. 1165 Comment
  CHSC91272  Eucalyptus tereticornis Richard R. Halse 1988-2-21 3550 Solano Vallejo, along Sonoma Blvd. between Magazine St. and Sandy Beach Road. In vacant lot. 36 Comment
  RSA0012842  Eucalyptus tereticornis R. R. Halse 1988-2-21 3550 Solano Vallejo, along Sonoma Blvd. between Magazine St. and Sandy Beach Road. 36 Comment
  SEINET9606883  Euphorbia peplus R. R. Halse 2011-3-21 8142 San Luis Obispo San Simeon, Motel 6, 9070 Castilla Drive. Comment
  CAS-BOT-BC366912  Euphorbia spathulata Richard R. Halse 2013-3-27 8760 Colusa Along State Hwy. 20 just east of the Colusa/Lake County Line, ca. 14.6 miles E of the junction of State Hwys. 20 and 53 558 Comment
  GH487053  Euphorbia spathulata R. H. Halse 2013-3-27 8760 Unknown redacted by HUH Comment
  SEINET4673877  Euphorbia spathulata Richard R. Halse 2013-3-27 8760 Colusa Along State Hwy. 20 just east of the Colusa/Lake county Line, ca. 14.6 miles east of the junction of State Hwys. 20 and 53.; 0 558 Comment
  SEINET5586425  Euphorbia spathulata Richard R. Halse 2013-1 8760 Colusa Along State Hwy. 20 just eat of the Colusa/Lake County Line, ca. 14.6 miles east of the junction of State Hwy. 20 and 53 558 Comment
  UCD169734  Euphorbia spathulata Richard R. Halse 2013-3-27 8760 Colusa Along State Hwy. 20 just east of the Colusa/Lake County Line, ca. 14.6 miles east of the junction of State Hwys. 20 and 53. 558 Comment
  CAS-BOT-BC310731  Euthamia occidentalis S. D. Halsey 1908-9-15 s.n. Santa Clara At edge of Salt Marsh, Palo Alto Comment
  SEINET5318846  Frankenia grandifolia R. R. Halse 1988-1 3628 San Diego At the far east end of Batiquitos Lagoon, which is about 3 airline miles north of Encinitas. 3 Comment
  CAS-BOT-BC223696  Frankenia salina Richard R. Halse 1988-6-12 3628 San Diego At the far east end of Batiquitos Lagoon, which is about 3 airline miles north of Encinitas 3 Comment
  CDA43226  Fumaria capreolata Richard R. Halse 2013-3-28 8767 Humboldt Eureka; by a Texaco station near 3543 Broadway St. (U.S. Highway 101) and its intersection with McCullens Ave. Comment
  CHSC114069  Fumaria capreolata Robert R. Halse 2013-3-28 8767 Humboldt Weedy area by a Texaco station near 3543 Broadway St. (US Hwy Ave. Comment
  GH404309  Fumaria capreolata R. R. Halse 2013-3-28 8767 Unknown Eureka; weedy area by a Texaco station near 3543 Broadway St. (U.S. Hwy. 101) and its intersection with McCullens Ave. Comment
  SEINET4208042  Fumaria capreolata Richard R. Halse 2013-3-28 8767 Humboldt Eureka. By a Texaco station near 3543 Broadway St. (U.S. Hwy. 101); 0 6 Comment
  SEINET8773683  Fumaria capreolata R. R. Halse 2013-3-28 8767 Humboldt Eureka, at a Texaco station near 3543 Broadway Street (US Hwy 101) and its intersection with McCullens Avenue. 6 Comment
  UC2029548  Fumaria capreolata Richard R. Halse 2013-3-28 8767 Humboldt Eureka, weed area by a Texaco station near 3543 Broadway St. (U.S. Highway 101) and its intersection with McCullens Ave. Comment
  SEINET4673859  Gazania linearis Richard R. Halse 2012-3-26 8433 San Luis Obispo Along State Hwy. 1, ca. 1.8 miles north of San Simeon.; 0 21 Comment
  UC2029543  Gazania linearis Richard R. Halse 2012-3-26 8433 San Luis Obispo Along State Highway 1, ca. 1.8 miles north of San Simeon Comment
  CAS-BOT-BC208059  Genista monspessulana Richard R. Halse 2006-8-3 6986 Butte Along State Hwy. 32 ca. 16.3 miles northeast of Chico, near junction with Platte Mountain Road 1000 Comment
  CHSC113826  Genista monspessulana Richard R. Halse 2011-3-22 8152 San Luis Obispo Along State Hwy. 1 in Cambria near where the road crosses Santa Rosa Creek. 6 Comment
  GH403190  Genista monspessulana R. R. Halse 2011-3-22 8152 Unknown Along State Hwy. 1 in Cambria near where the road crosses Santa Rosa Creek Comment
  SEINET8263330  Genista monspessulana Richard R. Halse 2006-8-3 6986 Butte Along State Hwy. 32 ca. 16.3 miles northeast of Chico, near junction with Platte Mountain Road. 1000 Comment
  CDA43184  Geranium core-core Richard R. Halse 2015-3-23 9343 San Luis Obispo Along State Hwy. 1, ca. 5.8 miles south of Ragged Point or 6 miles north of San Simeon. Comment
  SEINET13752195 Image available Geranium core-core Richard R. Halse 2015-1 9343 San Luis Obispo Along State Hwy. 1, ca. 5.8 miles south of Ragged Point or 6 miles north of San Simeon 14 Comment
  SEINET8693880 Image available Geranium core-core Richard R. Halse 2015-1 9343 San Luis Obispo Along State Hwy. 1, ca. 5.8 miles south of Ragged Point or 6 miles north of San Simeon. 14 Comment
  CDA43207  Geranium molle Richard R. Halse 2015-3-26 9382 Humboldt Eureka; by a Texaco station near 3543 Broadway St. ((U.S. Highway 101) and its intersection with McCullens Ave. Comment
  SEINET14153534 Image available Geranium molle Richard R. Halse 2015-1 9382 Humboldt Eureka; weedy area by a Texaco Station near 3543 Broadway St. and its intersection with McCullens Ave. 6 Comment
  SEINET8941907  Geranium molle R. R. Halse 2015-3-26 9382 Humboldt Eureka, weedy area by a Texaco Station near 3543 Broadway St. and its intersection with McCullens Ave. 6 Comment
  CHSC118598  Gilia achilleifolia Richard R. Halse 2016-3-20 9654 Santa Clara Along State Hwy. 152 ca. 9.7 miles northeast of its junction with State Hwy. 156 or 8.3 miles northeast of the junction with the Casa de Fruta Parkway. 259 Comment
  SEINET14147405  Gilia achilleifolia R. R. Halse 2016-1 9654 Santa Clara Along State Hwy 152, ca 9.7 miles NE of its junction with State Hwy 156, 8.3 miles NE of the junction with the Casa de Fruta Parkway. 259 Comment
  SEINET14642653  Gilia capitata subsp. staminea R. R. Halse 1988-2-20 3542 Alameda Along Patterson Pass Road, ca 2.25 airline miles SW of Midway. 240 Comment
  GH404304  Gilia tricolor R. R. Halse 2013-3-26 8745 Unknown Along the Elk Creek-Stonyford Road ca. 2.2 miles north of Stonyford Comment
  SEINET4208039  Gilia tricolor Richard R. Halse 2013-3-26 8745 Glenn Along the Elk Creek-Stonyford Road ca. 2.2 miles north of Stonyford.; 0 333 Comment
  CHSC114033  Gilia tricolor subsp. tricolor Richard R. Halse 2013-3-26 8745 Glenn Along the Elk Creek-Stonyford Road ca. 2.2 miles north of Stonyford. 333 Comment
  SEINET5585681  Gilia tricolor subsp. tricolor Richard R. Halse 2013-1 8745 Glenn Along the Elk Creek-Stonyford Road ca. 2.2 miles north of Stonyford. 333 Comment
  RSA724323  Guillenia lasiophylla R. R. Halse 1988-2-20 3545 Alameda Along Patterson Pass Road ca. 2.25 air miles SW of Midway. 240 Comment
  SEINET14188673 Image available Hedypnois cretica R. R. Halse 2016-1 9657 San Luis Obispo Along State Hwy 1, ca. 1.2 mi N of San Simeon or 1.8 mi S of the Hearst Castle turnoff; across road from a vista point 11 Comment
  SEINET3871767  Hedypnois cretica Richard R. Halse 2010-3-23 7837 San Luis Obispo Along State Hwy. 46 ca 7.3 miles E of its junction with State Hwy. 1; Santa Lucia Range.; 0 458 Comment
  CHSC118457  Hedypnois cretica Richard R. Halse 2016-3-21 9657 San Luis Obispo Along State Hwy.1, ca. 1.2 miles north of San Simeon or 1.8 miles south of the Hearst castle turnoff; across road from a vista point. 11 Comment
  CAS-BOT-BC309567  Helenium puberulum S. D. Halsey 1908-9-15 s.n. Santa Clara Palo Alto Comment
  RSA783699  Heliotropium curassavicum R. R. Halse 2010-8-25 8086 Lassen Along State Hwy 139 ca. 26.2 mi N of Susanville on NE shore of Eagle Lake. 1559 Comment
  SEINET3871713  Heliotropium curassavicum Richard R. Halse 2010-8-25 8086 Lassen Along State Hwy. 139 ca 26/2 miles N of Susanville on the NE shore of Eagle Lake.; 0 1559 Comment
  UCD142986  Heliotropium curassavicum Richard R. Halse 2010-8-25 8086 Lassen along State Highway 139 around 26.2 miles north of Susanville on the northeast shore of Eagle Lake. 1559 Comment
  RSA722688  Heliotropium europaeum R. R. Halse 2006-8-2 6978 Butte Chico. In the Lindo Channel Greenway where it crosses under Mangrove Ave. 92 Comment
  SEINET12636497  Heliotropium europaeum R. R. Halse 2006-8-2 6978 Butte Chico, in the Lindo Channel Greenway where it crosses under Mangrove Avenue. 92 Comment
  UCD119460  Heliotropium europaeum Richard R. Halse 2006-8-2 6978 Butte Chico; in the Lindo Channel Greenway where it crosses under Mangrove Ave. 92 Comment
Read comments
Aug 16 2016
  CHSC114058  Helminthotheca echioides Richard R. Halse 2012-3-27 8442 San Luis Obispo Along State Hw. 1, ca.1.4 miles south of Ragged Point, near the spot where the Hwy. crosses over San Carpoforo Creek. 21 Comment
  SEINET11197271 Image available Helminthotheca echioides R. R. Halse 2012-3-27 8442 San Luis Obispo Along State Hwy. 1, ca. 1.4 miles S of Ragged Point, near the spot where the Hwy. crosses over San Carpoforo Creek 21 Comment
  UCD170126  Helminthotheca echioides Richard R. Halse 2012-3-27 8442 San Luis Obispo San Luis Obispo County: Along State Hwy 1, ca. 1.4 miles south of Ragged Point, near the spot where the Hwy crosses over San Carpoforo Creek. 21 Comment
  CAS-BOT-BC305950  Helminthotheca echioides S. D. Halsey 1908-9-15 s.n. Santa Clara Edge of Salt Marsh, Palo Alto Comment
  RSA128530  Hemizonia pungens subsp. maritima S. D. Halsey 1908-9-15 s.n. Santa Clara Palo Alto. Comment
  SEINET4675377  Heteromeles arbutifolia Richard R. Halse 2012-3-29 8458 Colusa Along State Hwy. 20 just east of the Lake County Line, ca. 14.6 miles east of the junction with State Hwy. 53.; 0 558 Comment
  SEINET6710046  Heteromeles arbutifolia var. macrocarpa R. R. Halse 2012-3-29 8458 Colusa Along State HWY 20, just east of the Lake County Line about 14.6 miles east of the junction with State HWY 558 Comment
  RSA783327  Heterotheca villosa var. minor R. R. Halse 2010-8-26 8091 Lassen Along State Hwy 70 at Beckwourth Pass ca. 4.3 miles west of its junction with US Hwy 395 or 1.6 miles east of Sierra Valley. 1584 Comment
  SEINET7106129  Heterotheca villosa var. minor Richard R. Halse 2010-8-26 8091 Lassen Along State Hwy. 70 at Beckwourth Pass ca 4.3 miles west of its junction with U.S. Hwy. 395 or 1.6 miles E of Sierra Valley.; 0 1584 Comment
  RSA604019  Hierochloe occidentalis R. R. Halse 1996-3-26 5020 Humboldt Redwood National Park; at junction of Bald Hills Road and Holter Ridge Bike Route, 11 mile SE of U.S. Hwy. 101. 708 Comment
  SEINET270546  Hierochloe occidentalis Richard R. Halse 1996-3-26 5020 Humboldt Redwood National Park ; At junction of Bald Hills Road and Holter Ridge Bike Route 11 miles southeast of US Highway 101 708 Comment
  SEINET248557 Image available Hordeum leporinum Richard R. Halse 1987-2-2 3375 Sonoma Along State Hwy. 121, .4 miles E of its junction with State Hwy 116 at Big Bend in the Sonoma Valley. 6 Comment
  RSA0010476  Hordeum marinum subsp. gussoneanum Richard R. Halse 2014-3-24 9027 Glenn Willows; On the west side of N. Humboldt Ave., just north of its intersection with State Hwy.162. 43 Comment
  SEINET11262936  Hordeum marinum subsp. gussoneanum Richard R. Halse 2014-3-24 9027 Glenn Willows; vacant, weedy lot on the W side of N Humboldt Ave, just N of its intersection with State Hwy 162.; 0 43 Comment
  SEINET6669710  Hordeum marinum subsp. gussoneanum R. R. Halse 2014-3-24 9027 Glenn Willos; vacant lot on the west side of N. Humboldt Ave., just north of its intersection with State HWY 162 43 Comment
  RSA0060432  Hordeum murinum Richard R. Halse 2014-3-24 9026 Glenn Willows; vacant, weedy lot on the west side of N. Humboldt Ave., just north of its intersection with State Hwy. 162. 143 Comment
  SEINET6629070  Hordeum murinum R. R. Halse 2014-3-24 9026 Glenn Willows; W side of N. Humboldt Ave., N of intersection with State Hwy. 162. 43 Comment
  RSA669471  Hordeum murinum subsp. glaucum R. R. Halse 2001-3-22 5946 Colusa Williams, along vacant lot by 455-4th street. 18 Comment
  SEINET241543 Image available Hordeum murinum subsp. glaucum Richard R. Halse 2001-3-22 5946 Colusa Williams 18 Comment
  SEINET4670524  Hordeum murinum subsp. leporinum R. Halse 1987-2-22 3375 Sonoma Along State HWY 121, 0.4 miles east of its junction with State HWY 116 at Big Bend in the Sonoma Valley. 6 Comment
  UC1596333  Hordeum murinum subsp. leporinum Richard R. Halse 1987-2-22 3375 Sonoma along State Highway 121 .4 mi e of its junction with State Highway 116 at Big Bend in the Sonoma Valley 6 Comment
  CAS-BOT-BC280866  Hordeum murinum subsp. leporinum Richard R. Halse 1987-2-22 3375 Sonoma Along State Hwy. 121, .4 miles east of its junction with State Hwy. 116 at Big Bend in the Sonoma Valley 6 Comment
  UCD86225  Hordeum murinum subsp. leporinum Richard R. Halse 1987-2-22 3375 Sonoma Along State Hwy. 121, .4 miles E of its junction with State Hwy. 116 at Big Bend in the Sonoma Valley. 6 Comment
  CDA43200  Hordeum vulgare Richard R. Halse 2015-3-24 9368 Santa Barbara Southwest of Guadalupe, along Brown Road (road to Point Sal) ca. 3.5 miles west of intersection with State Hwy 1; Casmalia Hills, Corralitos Canyon. Comment
  CHSC117390  Hordeum vulgare Richard R. Halse 2015-3-24 9368 Santa Barbara Southwest of Guadelupe, along Brown Road (road to Point Sal) ca. 3.5 milesswest of its intersection with State Hwy. 1; Casmalia Hills, Corralitos Canyon. 188 Comment
  SEINET8693687 Image available Hordeum vulgare Richard R. Halse 2015-1 9368 Santa Barbara Southwest of Guadalupe, along Brown Road (road to Point Sal) ca. 3.5 miles west of its intersection with State Hwy 1; Casmalia Hills, Corralitos Canyon 188 Comment
  SEINET9001645  Hordeum vulgare R. R. Halse 2015-3-24 6398 Santa Barbara Casmalia Hills, Corralitos Canyon, SW of Guadalupe, along Brown Road (road to Point Sal), ca 3.5 miles W of its intersection with State Hwy 1. 188 Comment
  CDA8779  Hypochaeris glabra Richard R. Halse 2007-3-25 7122 Colusa Along State Highway 20, ca. 7.8 miles northeast of its junction with State Highway 16, at base of Salt Canyon. (39.10754 N, 122.30873 W) Comment
  CHSC105470  Hypochaeris glabra Richard R. Halse 2007-3-25 7122 Colusa Along State Hwy. 20 ca. 7.8 miles northeast of its junction with State Hwy. 16, at base of Salt Canyon. 100 Comment
  RSA730240  Hypochaeris glabra R. R. Halse 2007-3-25 7122 Colusa Along State Hwy 20, ca 7.8 miles northeast of its junction with State Hwy 16, at base of Salt Canyon. 100 Comment
  SEINET11259792 Image available Hypochaeris glabra R. R. Halse 2007-3-25 7122 Colusa Along State Hwy. 20 ca. 7.8 miles northeast of its junction with State Hwy. 16, at base of Salt Canyon. 100 Comment
  SEINET255491  Hypochaeris glabra Richard R. Halse 2007-3-25 7122 Colusa Along State Hwy. 20 ca. 7.8 miles northeast of its junction with State Hwy. 16, at base of Salt Canyon. 100 Comment
  CAS-BOT-BC206818  Iliamna bakeri Richard R. Halse 2004-7-8 6615 Lassen Along State Hwy. 139, ca. 6 miles N of Eagle Lake. 1710 Comment
  NY716915  Iliamna bakeri R. R. Halse 2004-7-8 6615 Lassen Along State Highway 139, ca. 6 miles north of Eagle Lake 1710 Comment
  SEINET8887136  Iliamna bakeri R. R. Halse 2004-1 6615 Lassen Along State Hwy 139, ca 6 miles N of Eagle Lake 1710 Comment
  UCD126378  Iliamna bakeri Richard R. Halse 2004-7-8 6615 Lassen Along State Highway 139, around 6 miles north of Eagle Lake. 1710 Comment
  CHSC118593  Isatis tinctoria Richard R. Halse 2016-5-29 9722 Siskiyou Along Hilt Road by its junction with Interstate Hwy. 5, east of Hilt. 939 Comment
  CAS-BOT-BC112589  Isolepis cernua S. D. Halsey 1908-11-30 s.n. Santa Clara Salt marsh near willow clump, near Palo Alto. Comment
  CHSC85671  Isomeris arborea Richard R. Halse 2002-3-25 6133 San Bernardino Along State Hwy. 247, 26 miles NW of Yucca Valley or 17 miles E of Lucerne Valley. 922 Comment
  CAS-BOT-BC340143  Jaumea carnosa S. D. Halsey 1908-10-1 s.n. Santa Clara Near Colley's [Cooley's] Landing. Palo Alto Comment
  CAS-BOT-BC110003  Juncus S. D. Halsey 1908-11-7 s.n. Santa Clara Salt marsh near Cooley's Landing. Palo Alto. Comment
  NY716925  Keckiella breviflora var. glabrisepala R. R. Halse 1977-5-24 1567 Mariposa Sierra National Forest, ca. 1 mile east of Indian Flat Campground along State Highway 140 480 Comment
  CDA36735  Lagophylla ramosissima Richard R. Halse 2010-8-25 8085 Modoc Along State Highway 139 ca. 25.5 miles northwest of its junction with State Hwy 299; Modoc National Forest. Comment
  RSA722576  Lagophylla ramosissima Richard R. Halse 2006-8-3 6989 Modoc Along Jess Valley Road ca. 4 miles E of Likely, just past bridge over the Pit River. 1387 Comment
  SEINET11446747 Image available Lagophylla ramosissima R. R. Halse 2010-8-25 8085 Modoc Along State Hwy. 139 ca 25.5 miles northwest of its junction with State Hwy. 299; Modoc National Forest.; 0 1278 Comment
  SEINET8258712  Lagophylla ramosissima Richard R. Halse 2006-8-3 6989 Modoc Along Jess Valley Road ca. 4 miles east of Likely, just past bridge over the Pit River. 1387 Comment
  CHSC118617  Lamarckia aurea Richard R. Halse 2016-3-22 9666 San Luis Obispo Along State Hwy. 1 at its junction with Via Concha south of Oceano. 20 Comment
  SEINET8693745 Image available Lamarckia aurea Richard R. Halse 2015-1 9333 Santa Clara Along State Hwy. 152 ca. 8.3 miles northeast of its junction with the Casa de Fruta Parkway 259 Comment
  SEINET9001079  Lamarckia aurea R. R. Halse 2015-3-22 9333 Santa Clara Along State Hwy 152 ca. 8.3 miles NE of its junction with the Casa de Fruta Parkway. 259 Comment
  SEINET7949732  Lamium amplexicaule R. R. Halse 1988-2-20 3546 Contra Costa Along State Hwy. 4 near its junction with Balfour Road, on the S edge of Brentwood. 23 Comment
  SEINET11447701 Image available Lasthenia gracilis R. R. Halse 2012-3-28 8450 Santa Clara Along State Hwy. 152 ca. 1.3 miles W of the Merced County Line or 11.1 miles NE of the junction of Hwy. 152 and 156 358 Comment
  RSA682149  Lasthenia platycarpha Richard R. Halse 2002-3-27 6152 Butte At the junction of State Hwy 99 and Hamilton Nord Cana Hwy, ca. 8 miles NW of Chico. 40 Comment
  RSA726251  Lasthenia platycarpha R. R. Halse 2002-3-27 6159 Butte At the junction of State Highway 99 and Hamilton Nord Cana Highway. ca. 8 miles NW of Chico. 40 Comment
  CHSC118621  Lathyrus angulatus Richard R. Halse 2016-3-24 9682 Mendocino Along U.S. Hwy. 101 ca. 5 miles south of Laytonville. 469 Comment
  SEINET13771980  Lathyrus angulatus R. R. Halse 2016-3-24 9682 Mendocino Along US Hwy 101, ca 5 miles S of Laytonville. 469 Comment
  GH404311  Lathyrus vestitus R. R. Halse 2013-3-27 8752 Unknown Along U. S. Hwy. 128 ca. 8.7 miles west of Winters, just west of Monticello Dam, south end of Lake Berryessa Comment
  SEINET13752175 Image available Lathyrus vestitus Richard R. Halse 2015-1 9347 San Luis Obispo Along Santa Rosa Creek Road ca. 0.6 miles northwest of its junction with State Hwy. 46; Santa Lucia Range, east of Cambria 440 Comment
  CDA43183  Lathyrus vestitus var. vestitus Richard R. Halse 2015-3-23 9347 San Luis Obispo Santa Lucia Range; Along Santa Rosa Creek Road ca. 0.6 mile northwest of its junction with State Hwy 46; east of Cambria. Comment
  CHSC114060  Lathyrus vestitus var. vestitus Richard R. Halse 2012-3-27 8447 Monterey Along State Hwy. 1, ca. 2.7 miles south of Big Sur. 190 Comment
  SEINET7348199  Lathyrus vestitus var. vestitus R. R. Halse 2012-3-27 8447 Monterey Along State Hwy. 1, ca. 2.7 miles S of Big Sur 190 Comment
  SEINET8693760 Image available Lathyrus vestitus var. vestitus Richard R. Halse 2015-1 9347 San Luis Obispo Along Santa Rosa Creek Road ca. 0.6 miles northwest of its junction with State Hwy. 46; Santa Lucia Range, east of Cambria 440 Comment
  UC2029553  Lathyrus vestitus var. vestitus Richard R. Halse 2013-3-27 8752 Napa Along State Highway 128, ca. 8.7 miles west of Winters, just west of Monticello Dam, south end of Lake Berryessa Comment
  CAS-BOT-BC321758  Layia fremontii Richard R. Halse 2002-3-27 6151 Butte At the junction of State Hwy 99 and Hamilton Nord Cana Hwy, ca 8 miles NW of Chico. 40 Comment
  RSA682150  Layia fremontii R. R. Halse 2002-3-27 6151 Butte At the junction of State Highway 99 and Hamilton Nord Cana Highway. ca. 8 miles NW of Chico. 40 Comment
  SEINET11447713 Image available Layia fremontii R. R. Halse 2002-3-27 6151 Butte At the junction of State Hwy 99 and Hamilton Nord Cana Hwy. Ca 8 miles NW of Chico 40 Comment
  SEINET255536  Layia fremontii Richard R. Halse 2007-3-23 7115 Tuolumne Along State Hwy, 49 ca. .7 miles north of Chinese Camp. 385 Comment
  CHSC118465  Layia platyglossa Richard R. Halse 2016-3-23 9674 San Luis Obispo East of Paso Robles; along State Hwy. 46, ca. 3.4 miles west of its junction with State Hwy. 41W (Shandon Exit). 315 Comment
  SEINET13771992 Image available Layia platyglossa R. R. Halse 2016-3-23 9674 San Luis Obispo Along State Hwy 46, ca 3.4 miles W of its junction with State Hwy 41W (Shandon exit), E of Paso Robles. 315 Comment
  SEINET3873447  Layia platyglossa Richard R. Halse 2011-3-21 8137 San Benito Along State Hwy. 25 ca 1.4 miles north of the Monterey County Line or 12.9 miles north of its junction with State Hwy. 198.; 0 328 Comment
  CDA43195  Lepidium chalepense Richard R. Halse 2015-3-24 9362 San Luis Obispo Western end of the Santa Maria Valley, at the end of Oso Flaco Lake Road; ca. 5 air miles south of Oceano. Comment
  SEINET13752236 Image available Lepidium chalepense Richard R. Halse 2015-1 9362 San Luis Obispo Western end of the Santa Maria Valley, at the end of Oso Flaco Lake Road; ca. 5 air miles south of Oceano. 3 Comment
  CDA43198  Lepidium didymum Richard R. Halse 2015-3-24 9366 San Luis Obispo Western end of the Santa Maria Valley, at the end of Oso Flaco Lake Road; ca. 5 air miles south of Oceano. Comment
  CHSC117377  Lepidium didymum Richard R. Halse 2015-3-24 9366 San Luis Obispo Western end of the Santa Maria Valley, at the end of Oso Flaco Lake Road; ca. 5 air miles south of Oceano. 3 Comment
  GH395177  Lepidium didymum R. R. Halse 2015-3-24 9366 Unknown Western end of the Santa Maria Valley, at the end of Oso Flaco Lake Road; ca 5 air miles south of Oceano Comment
  SEINET13752248 Image available Lepidium didymum Richard R. Halse 2015-1 9366 San Luis Obispo Western end of the Santa Maria Valley, at the end of Oso Flaco Lake Road; ca. 5 air miles south of Oceano. 3 Comment
  CAS-BOT-BC89280  Lepidium flavum Richard R. Halse 1978-3-27 1727 Inyo Along U.S. Highway 395, 8.8 miles north of its junction with State Highway 136. Owens Valley, north end of Alabama Hills 1140 Comment
  NY23175  Lepidium flavum R. R. Halse 1978-3-27 1727 Inyo Owens Valley, north end of the Alabama Hills. Along U.S. Highway 395, 8.8 miles north of its junction with State Highway 136 1140 Comment
  SEINET238981  Lepidium flavum Richard R. Halse 1978-3-27 1727 Inyo Along U.S. Hwy. 395 8.8 miles north of its junction with State Hwy.136; Owens Valley N end of the Alabama Hills. 1140 Comment
  UCD115487  Lepidium flavum Richard R. Halse 1978-3-27 1727 Inyo Along U.S. Hwy. 395, 8.8 miles north of its junction with State Hwy. 136. Owen's Valley, north end of the Alabama Hills. 1140 Comment
  POM323955  Lepidium fremontii R. R. Halse 1976-6-11 1373 Mono Along US Hwy 6, about 25 mi S of Benton, just N of the Inyo Co line. 1305 Comment
  RSA726665  Lepidium nitidum var. nitidum Richard Halse 2002-3-27 6153 Butte At the junction of State Hwy. 99 and Hamilton Nord Cana Hwy. ca. 8 miles NW of Chico. 40 Comment
  UC1952507  Lepidium nitidum var. nitidum Richard Halse 2007-3-23 7117 Tuolumne Along State Hwy 49 ca. 0.7 mi N of Chinese Camp 385 Comment
  SEINET5326385  Lepidium nitidum var. nitidum R. R. Halse 2002-3-27 6153 Butte At the junction of State Hwy 99 and Hamilton Nord Cana Hwy. Ca 8 miles NW of Chico 40 Comment
  CHSC118616  Lepidium oblongum Richard R. Halse 2016-3-21 9658 San Luis Obispo Along State Hwy. 1 at a vista point, ca. 11.8 miles north of San Simeon. 2 Comment
  CHSC117372  Lepidium strictum Richard R. Halse 2015-3-21 9328 Tehama Corning; along Short Drive just west of its intersection with Edith Ave. 80 Comment
  GH395170  Lepidium strictum R. R. Halse 2015-3-21 9328 Unknown Corning: along Short Drive just west of its intersection with Edith Ave. Comment
  SEINET11293823  Lepidium strictum R. R. Halse 2012-3-28 8453 Colusa Williams, along 5th Street between intersections with C and D Streets, near railroad tracks. 24 Comment
  CAS-BOT-BC361310  Limnanthes douglasii subsp. nivea Richard R. Halse 2013-3-27 8757 Napa Along the Chiles and Pope Valley Road ca 4.7 miles NW of its junction with the Lower Chiles Valley Road. 230 Comment
  CDA43225  Limnanthes douglasii subsp. nivea Richard R. Halse 2013-3-27 8757 Napa Along the Chiles and Pope Valley Road ca. 4.7 miles northwest of it junction with Lower Chiles Valley Road. Comment
  CHSC98783  Limnanthes douglasii subsp. nivea Richard R. Halse 2007-3-25 7130 Lake Along State Hwy. 20 ca. 1.3 miles W of Upper Lake just past junction with State Hwy. 29. Weedy roadside ditch by orchard. 406 Comment
  GH404315  Limnanthes douglasii subsp. nivea R. R. Halse 2013-3-27 8757 Unknown Along the Chiles and Pope Valley Road ca. 4.7 miles northwest of its junction with the Lower Chilies Valley Road Comment
  SEINET5585702  Limnanthes douglasii subsp. nivea Richard R. Halse 2013-1 8757 Napa Along the Chiles and Pope Valley Road ca. 4.7 miles northwest of its junction with the Lower Chiles Valley Road. 230 Comment
  RSA730227  Limnanthes douglasii subsp. nivea R. R. Halse 2007-3-25 s.n. Lake Along State Hwy. 20 ca. 1.3 miles W of Upper Lake just past junction with State Hwy. 29. 406 Comment
  SEINET6670506  Limnanthes douglasii subsp. nivea R. R. Halse 2007-3-25 7130 Lake Along State Hwy 20 ca. 1.3 miles W of Upper Lake just past junction with State Hwy. 29. 406 Comment
  SEINET960030  Limonium arborescens Richard R. Halse 1988-1 3630 San Diego On the north side of Batiquitos Lagoon, which is about three airline miles north of Encinitas; found on the dry slopes around a sediment basin between the railroad tracks and Interstate highway 5. 18 Comment
  CHSC114043  Limonium sinuatum Richard R. Halse 2012-3-26 8431 San Luis Obispo Along State Hwy. 1, ca. 1.8 miles north of Sam Simeon. 21 Comment
  SEINET4208523  Limonium sinuatum Richard R. Halse 2012-3-26 8431 San Luis Obispo Along State Hwy. 1, ca. 1.8 miles north of San Simeon.; 0 21 Comment
  SEINET9176850  Limonium sinuatum R. R. Halse 2012-3-26 8431 San Luis Obispo Along State Hwy 1, ca 1.8 miles N of San Simeon. 21 Comment
  CHSC118600  Linanthus californicus Richard R. Halse 2016-3-22 9672 Santa Barbara North of Lompoc; along Burton Mesa Road ca. 0.4 miles from its intersection with Harris Grade Road. 107 Comment
  SEINET14060282  Linanthus californicus R. R. Halse 2016-1 9672 Santa Barbara N or Lompoc; along Burton Mesa Road ca., 0.4 miles from its intersection with Harris Grade Road. 107 Comment
  CHSC110366  Lobularia maritima Richard R. Halse 2010-3-23 7833 Monterey Along State Hwy. 1 ca. 18.6 miles north of Big Sur. 24 Comment
  GH403176  Lobularia maritima R. R. Halse 2010-3-23 7833 Unknown Along State Hwy. 1 ca. 18.6 miles north of Big Sur Comment
  SEINET11294107  Lobularia maritima R. R. Halse 2010-3-23 7833 Monterey Along State Hwy 1, ca 18.6 miles N of Big Sur. 24 Comment
  SEINET3871710  Lobularia maritima Richard R. Halse 2010-3-23 7833 Monterey Along State Hwy. 1 ca 18.6 miles north of Big Sur.; 0 24 Comment
  GH404292  Lomatium dasycarpum R. R. Halse 2013-3-26 8749 Unknown Along the Elk Creek-Stonyford Road ca. 4.8 miles north of Stonyford; slope above Stoney Creek Comment
  SEINET8589430  Lomatium dasycarpum R. R. Halse 2013-3-26 8749 Glenn Along the Elk Creek-Stonyford Road ca. 4.8 miles north of Stonyford; slope above Stoney Creek 318 Comment
  CAS-BOT-BC361308  Lomatium dasycarpum subsp. dasycarpum Richard R. Halse 2013-3-26 8749 Glenn Along the Elk Creek-Stonyford Road ca. 4.8 miles N of Stonyford; slope above Stoney Creek. 318 Comment
  SEINET4208859  Lomatium dasycarpum subsp. dasycarpum Richard R. Halse 2013-3-26 8749 Glenn Along the Elk Creek-Stonyford Road ca. 4.8 miles north of Stonyford; slope above Stoney Creek.; 0 318 Comment
  UCD169729  Lomatium dasycarpum subsp. dasycarpum Richard R. Halse 2013-3-26 8749 Glenn Along the Elk Creek-Stonyford Road ca. 4.8 miles north of Stonyford; slope above Stoney Creek. 318 Comment
  CHSC116064  Lomatium macrocarpum Richard R. Halse 2014-3-25 9033 Colusa Along the Leesville-Logoda Road ca. 5.6 miles south of Logoda; Indian Valley. 425 Comment
  CHSC65245  Lomatium macrocarpum Richard R. Halse 1977-5-22 1549 Lassen In rocky areas along U.S. Hwy. 395, 9.5 mi. north of Madeline. 1490 Comment
  RSA0060080  Lomatium macrocarpum Richard R. Halse 2014-3-25 9033 Colusa Along the Leesville-Logoda Road ca. 5.6 miles south of Logoda; Indian Valley. 425 Comment
  SEINET11263259  Lomatium macrocarpum Richard R. Halse 2014-3-25 9033 Colusa Along the Leesville-Logoda Road ca. 5.6 miles S of Logoda. Indian Valley.; 0 425 Comment
  SEINET8693961  Lomatium macrocarpum R. R. Halse 2014-3-25 9033 Colusa Along the Leesville-Logoda Road ca. 5.6 mi S of Logoda; Indian Valley. 425 Comment
  GH395047  Lomatium macrocarpum R. H. Halse 2014-3-25 9033 Unknown Along the Leesville-Logoda Road ca. 5.6 miles south of Logoda; Indian Valley Comment
  RSA724325  Lomatium macrocarpum Richard Halse 1977-5-22 1549 Lassen Along Highway 395, 9.5 miles north of Madeline 1490 Comment
  UCD127690  Lomatium macrocarpum Richard R. Halse 1977-5-22 1549 Lassen U.S. Highway 395, 9.5 miles north of Madeline. 1490 Comment
  SEINET11262798  Lomatium marginatum var. purpureum Richard R. Halse 2014-3-24 9011 Glenn Mendocino National Forest, along Road FH-7 (State Hwy 162) ca. 4.7 miles W of its junctino with Road 306. NW of Elk Creek.; 0 464 Comment
  RSA0060086  Lomatium marginatum var. purpureum Richard R. Halse 2014-3-24 9011 Glenn Mendocino National Forest, along Road FH-7 (State Highway 162) ca. 4.7 miles west of its junction with Road 306; northwest of Elk Creek. 464 Comment
  SEINET8802402  Lomatium nudicaule R. R. Halse 1976-6-13 1400 Modoc Modoc National Forest, Upper Rush Creek Campground 1585 Comment
  CHSC118623  Lomatium utriculatum Richard R. Halse 2016-5-29 9724 Siskiyou Along Hilt Road east of Hilt. 902 Comment
  SEINET13761959  Lomatium utriculatum R. R. Halse 2016-5-29 9724 Siskiyou Along Hilt Road, E of Hilt. 902 Comment
  CHSC116047  Lomatium vaginatum Richard R. Halse 2014-3-25 9028 Colusa Along the Sites-Logoda Road ca. 5.2 miles northwest of Sites. 175 Comment
  GH404778  Lomatium vaginatum R. R. Halse 2014-3-25 9028 Unknown Along the Sites-Logoda Road ca. 5.2 miles northwest of Sites Comment
  RSA0010483  Lomatium vaginatum Richard R. Halse 2014-3-25 9028 Colusa Along the Sites-Logoda Road ca. 5.2 miles northwest of Sites. 175 Comment
  SEINET11262797  Lomatium vaginatum Richard R. Halse 2014-3-25 9028 Colusa Along the Sites Logoda Road ca. 5.2 miles NW of Sites.; 0 175 Comment
  SEINET7408261 Image available Lomatium vaginatum Richard R. Halse 2014-1 9028 Colusa Along the Sites-Logoda Road ca. 5.2 miles northwest of Sites 175 Comment
  SEINET7760664 Image available Lomatium vaginatum Richard R. Halse 2014-3-25 9028 Colusa Along the Sites-Logoda Road ca. 5.2 mi NW of Sites. 175 Comment
  SEINET9672754  Lomatium vaginatum R. R. Halse 2014-3-25 9028 Colusa Along the Sites-Logoda Road, ca. 5.2 mi NW of Sites. 175 Comment
  RSA724326  Lomatium vaginatum Richard Halse 1977-5-22 1548 Lassen Along Highway 395, 9.5 miles north of Madeline 1490 Comment
  RSA730872  Lotus humistratus R. R. Halse 2007-3-25 7124 Kings Along State Hwy. 20 ca. .7 miles east of its junction with State Hwy. 53, ca. 3.2 miles southeast of Clearlake Oaks. 514 Comment
Read comments
Aug 18 2012
  UC1779148  Lotus strigosus Richard R. Halse 2001-3-27 5971 San Bernardino Along Amboy Road 23.6 mi ENE of its junction with Adobe Rd in Twentynine Palms 673 Comment
  GH403175  Lupinus albifrons R. R. Halse 2010-3-21 7830 Unknown Along State Hwy. 20 ca. 10.7 miles southwest of its junction with Interstate Hwy. 5 at Williams; in Salt Canyon Comment
  UC1766154  Lupinus albifrons Richard R. Halse 1988-2-20 3543 Alameda Along Patterson Pass Road about 2.25 airline miles SW of Midway. 240 Comment
  RSA783302  Lupinus albifrons var. albifrons R. R. Halse 2010-3-21 7830 Colusa Along State Hwy 20 ca. 10.7 miles SW of its junction with Interstate Hwy 5 at Williams. In Salt Canyon. 154 Comment
  CAS-BOT-BC198423  Lupinus albifrons var. albifrons Richard R. Halse 1988-2-20 3543 Alameda Along Patterson Pass Road about 2.25 airline miles southwest of Midway 240 Comment
  RSA722572  Lupinus albifrons var. albifrons R. R. Halse 1988-2-20 3543 Alameda Along Patterson Pass Road ca. 2.25 air miles SW of Midway. 240 Comment
  SEINET4673429  Lupinus albifrons var. collinus Richard R. Halse 2012-3-27 8446 Monterey Along State Hwy. 1, ca. 2.7 miles south of Big Sur.; 0 190 Comment
  SEINET8040866  Lupinus albifrons var. collinus R. R. Halse 2012-3-27 8446 Monterey Along State Hwy 1, ca. 2.7 miles south of Big Sur. 190 Comment
  UCD169727  Lupinus arboreus Richard R. Halse 2012-3-27 8445 Monterey Along State Hwy. 1, ca. 3.2 miles north of Lucia. 71 Comment
  CHSC98636  Lupinus argenteus var. argenteus Richard R. Halse 2006-8-4 6996 Modoc Modoc National Forest, south end of the Warner Mountains, along Patterson Mill Road by Homestead Flat. 2152 Comment
  RSA722577  Lupinus argenteus var. argenteus R. R. Halse 2006-8-4 6996 Modoc Modoc National Forest, south end of the Warner Mountains, along Patterson Mill Road by Homestead Flat. 2152 Comment
  CHSC99468  Lupinus benthamii Richard R. Halse 2007-3-24 7121 Mariposa Along State Hwy. 140 ca. 7.6 miles west of Mariposa. 647 Comment
  SEINET255528  Lupinus benthamii Richard R. Halse 2007-3-24 7121 Mariposa Along State Hwy. 140 ca. 7.6 miles west of Mariposa. 647 Comment
  SEINET5333885  Lupinus benthamii R. R. Halse 2007-5-24 7121 Mariposa Along state wy 140, ca. 7.6 miles west of Mariposa. 647 Comment
  RSA730244  Lupinus benthamii var. benthamii Richard R. Halse 2007-3-24 7121 Mariposa Along State Hwy 140 ca. 7.6 miles west of Mariposa. 647 Comment
  RSA724140  Lupinus bicolor Richard R. Halse 2002-3-21 6131 Colusa Williams; by junction of 5th Street and B Street. 24 Comment
  SEINET5328111  Lupinus bicolor R. R. Halse 2002-3-21 6131 Colusa Williams; by junction 5th St. and B St. 24 Comment
  RSA523663  Lupinus densiflorus var. palustris Richard H. Halse 1989-5-7 3824 Glenn Along road 306, 1.4 miles south of Chrome. 249 Comment
  CAS-BOT-BC202056  Lupinus lapidicola Richard R. Halse 1989-5-6 3817 Siskiyou Along Old Highway 99, 3.2 miles south of Gazelle or 4.2 miles north of its junction with Old Stage Road 888 Comment
  UC1766160  Lupinus lapidicola Richard R. Halse 1989-5-6 3817 Siskiyou Along Old Hwy 99, 3.2 mi S of Gazelle or 4.2 mi N of its junction with Old Stage Road. 888 Comment
  RSA523664  Lupinus lapidicola Richard Halse 1989-5-6 3817 Siskiyou Along Old Hwy 99, 3.2 miles south of Gazelle or 4.2 miles north of its jct with Old Stage Road. 888 Comment
  CHSC91961  Lupinus lepidus var. confertus Richard R. Halse 2004-7-22 6670 Lassen Along U.S. Hwy. 395 ca. 7.8 miles southeast of Susanville. 1293 Comment
  NY716913  Lupinus lepidus var. confertus R. R. Halse 2004-7-22 6670 Lassen Along U.S. Highway 395 ca. 7.8 miles southeast of Susanville. 1293 Comment
  SEINET249342  Lupinus lepidus var. confertus Richard R. Halse 2004-7-22 6670 Lassen Along U.S. Hwy. 395 ca. 7.8 miles southeast of Susanville. 1293 Comment
  SEINET5332986  Lupinus lepidus var. confertus R. R. Halse 2004-7-22 6670 Lassen Along U.S. Hwy 395, ca. 7.8 miles southeast of Susanville. 1293 Comment
  UC1982376  Lupinus lepidus var. confertus Richard R. Halse 2004-6-22 6670 Lassen Along U. S. Hwy. 395 ca. 7.8 miles southeast of Susanville. Comment
  UCD108246  Lupinus lepidus var. confertus Richard R. Halse 2004-7-22 6670 Lassen Along U.S. Hwy. 395, ca 7.8 miles southeast of Susanville. 1293 Comment
  CHSC118592  Lupinus luteolus Richard R. Halse 2016-5-29 9715 Siskiyou Along Hilt Road ca. 2.1 miles northwest of Hilt on the Oregon/California State Line. 876 Comment
  SEINET13761751  Lupinus luteolus R. R. Halse 2016-5-29 9715 Siskiyou Along Hilt Road, c 2.1 miles NW of Hilt on the OR/CA state line. 876 Comment
  CHSC85600  Lupinus microcarpus Richard R. Halse 2002-3-26 6138 Fresno Along State Hwy. 198 ca. 3 miles SW of Coalinga. 205 Comment
  SEINET8056943  Lupinus microcarpus R. R. Halse 2002-3-26 6138 Fresno Along State Hwy. 198 ca. 3 miles SW of Coalinga 205 Comment
  RSA724141  Lupinus microcarpus Richard R. Halse 2002-3-26 6138 Fresno Along State Hwy. 198 ca. 3 miles SW of Coalinga. Comment
  SEINET4208040  Lupinus microcarpus var. densiflorus Richard R. Halse 2013-3-26 8746 Glenn Along the Elk Creek-Stonyford Road ca. 4.2 miles north of Stonyford.; 0 321 Comment
  SEINET5585781  Lupinus microcarpus var. densiflorus Richard R. Halse 2013-1 8746 Glenn Along the Elk Creek-Stonyford Road ca. 4.2 miles north of Stonyford. 321 Comment
  SEINET8056946  Lupinus microcarpus var. densiflorus R. R. Halse 2013-3-26 8746 Glenn Along the Elk Creek-Stonyford Road ca. 4.2 miles north of Stonyford 321 Comment
  CHSC113829  Lupinus nanus Richard R. Halse 2010-3-24 7843 Santa Clara Along State Hwy. 152 ca. 3.7 miles west of the Merced County Line or 16.1 miles west of the junction of Hwy. 152 and State Hwy. 33. 195 Comment
  GH403179  Lupinus nanus R. R. Halse 2010-3-24 7843 Unknown Along State Hwy. 152 ca. 3.7 miles west of the Merced County Line or 16.1 miles west of the junction of Hwy. 152 and State Hwy. 33 Comment
  SEINET8056973  Lupinus nanus R. R. Halse 2002-3-21 6129 Colusa Williams, by junction of 5th Street and B Street. 24 Comment
  RSA724143  Lupinus nanus subsp. nanus Richard R. Halse 2002-3-21 6129 Colusa Willaism; by junction of 5th Street and B Street. 24 Comment
  RSA523657  Lupinus rivularis Richard H. Halse 1989-5-14 3844 Del Norte Just north of Crescent City, along Lake Earl drive, .3 miles north of Pine Grove School. 10 Comment
  SEINET5333895  Lupinus rivularis R. R. Halse 1989-5-14 3844 Del Norte Just north of Crescent Cit along Lake Earl Drive, .3 miles N of Pine Grove Schook, 10 Comment
  RSA523188  Lupinus subvexus var. subvexus R. R. Halse 1989-5-13 3837 Lake Along State Hwy. 175, one mile south of Whispering Pines. 684 Comment
  CHSC114063  Lupinus succulentus Richard R. Halse 2013-3-26 8736 Colusa Along the Leesville Road ca 1.8 miles northwest of its junction with State Hwy 20, west of Williams. 85 Comment
  SEINET5586445  Lupinus succulentus Richard R. Halse 2013-1 8736 Colusa Along the Leesville Road ca. 1. 8 miles northwest of its junction with State Hwy. 20, west of Williams. 85 Comment
  SEINET7096535 Image available Lupinus succulentus Richard R. Halse 2001-3-22 5947 Colusa Williams; along a vacant lot by 455 - 4th street. 39 9.52N 122 8.84W (Converted to decimal degrees). Elevation 18 m. 18 Comment
  CAS-BOT-BC203945  Malacothamnus fasciculatus Richard R. Halse 1988-6-13 3634 San Diego On the north side of Batiquitos Lagoon, which is about 3 airline miles north of Encinitas, at the end of Batiquitos Drive, just east of Interstate Highway 5 3 Comment
  CHSC101177  Malacothamnus fasciculatus Richard R. Halse 1988-6-13 3634 San Diego On the north side of Batiquitos Lagoon, ca. 3 air miles north of Encinitas, at the end of Batiquitos Drive, just E of Interstate Hwy. 5. 3 Comment
  UC1766166  Malacothamnus fasciculatus Richard R. Halse 1988-6-13 3634 San Diego On the N side of Batiquitos Lagoon, which is about 3 airline miles of Encinitas, at the end of Batiquitos Drive, just E of Interstate Hwy 5. 3 Comment
  SEINET8887393  Malacothamnus fasciculatus R. R. Halse 1988-6-13 3634 San Diego N side of Batiquitos Lagoon, athe the end of Batiquitos Drive, just E of I-5, about 3 air miles N of Encinitas. 3 Comment
  CAS-BOT-BC345538  Malacothrix coulteri Richard R. Halse 1978-3-25 1720 San Bernardino North of Baker 3 1/2 miles along State Hwy. 127; the edge of dry Silver Lake 276 Comment
  CHSC118744  Malacothrix coulteri Richard R. Halse 2016-3-23 9679 Kings Along State Hwy. 269 ca. 0.6 miles north of Avenal. 288 Comment
  SEINET223585 Image available Malacothrix coulteri R. R. Halse 1978-3-25 1720 San Bernardino N of Baker 3.5 mi along CA Hwy 127 edge of dry Silver Lake 0 Comment
  UCD134364  Malacothrix coulteri Richard R. Halse 1978-3-25 1720 Inyo North of Baker 3.5 miles along State Hwy 127; the edge of dry Silver Lake. 276 Comment
  SEINET4208650  Malva nicaeensis Richard R. Halse 2012-3-26 8430 San Luis Obispo Along State Hwy. 1, ca. 2.7 miles north of San Simeon, just south of the turnoff to the Hearst Castle; ca. 6 miles north of Cambria.; 0 Comment
  SEINET8893232  Malva nicaeensis R. R. Halse 2012-3-26 8430 San Luis Obispo Along State Hwy 1, ca 2.7 miles N of San Simeon, just S of the turnoff to the Hearst Castle, ca. 6 miles N of Cambria. 10 Comment
  UCD170182  Malva nicaeensis Richard R. Halse 2012-3-26 8430 San Luis Obispo San Luis Obispo County: Along State Hwy. 1, ca. 2.7 miles north of San Simeon, just south of the turnoff to the Hearst Castle; ca. 6 miles north of Cambria. 10 Comment
  CDA43193  Malva parviflora Richard R. Halse 2015-3-24 9360 San Luis Obispo Western end of the Santa Maria Valley, at the end of Oso Flaco Lake Road; ca. 5 air miles south of Oceano. Comment
  CHSC85767  Malva parviflora Richard R. Halse 2002-3-26 6137 Fresno Along State Hwy. 198, 1 mile SW of its junction with Interstate Hwy. 5, ca. 9 air miles NE of Coalinga. 163 Comment
  RSA669479  Malva parviflora R. R. Halse 2001-3-22 5945 Colusa Williams; along a vacant lot by 455-4th Street. 18 Comment
  SEINET13387185 Image available Malva parviflora Richard R. Halse 2015-1 9360 San Luis Obispo Western end of the Santa Maria Valley, at the end of Oso Flaco Lake Road; ca. 5 air miles south of Oceano. 3 Comment
  SEINET244629  Malva parviflora Richard R. Halse 2002-3-26 6137 Fresno Along State Hwy. 198, 1 mile W of its junction with Interstate Hwy. 5, ca. 9 air miles NE of Coalinga 163 Comment
  SEINET7096534  Malva parviflora Richard R. Halse 2001-3-22 5945 Colusa Williams; along a vacant lot by 455 - 4th street Weedy roadside; 39 9.52N 122 8.84W (Converted to decimal degrees). Elevation 18 m. 18 Comment
  SEINET8893244  Malva parviflora R. R. Halse 2002-3-26 6137 Fresno Along State Hwy 198, 1 mile W of its junction with I-5, ca 9 air miles NE of Coalinga. 163 Comment
  UC2013785  Malva parviflora Richard R. Halse 2002-3-26 6137 Fresno Along State Highway 198, 1 mile W of its junction with Interstate Highway 5, ca 9 air miles NE of Coalinga. Comment
  CDA43194  Malva sylvestris Richard R. Halse 2015-3-24 9361 San Luis Obispo Western end of the Santa Maria Valley, at the end of Oso Flaco Lake Road; ca. 5 air miles south of Oceano. Comment
  CHSC117376  Malva sylvestris Richard R. Halse 2015-3-24 9361 San Luis Obispo Western end of the Sant Maria Valley, at the end of Oso Flaco Lake Road; ca. 5 air miles south of Oceano 3 Comment
  SEINET13752249 Image available Malva sylvestris Richard R. Halse 2015-1 9361 San Luis Obispo Western end of the Santa Maria Valley, at the end of Oso Flaco Lake Road; ca. 5 air miles south of Oceano. 3 Comment
  CHSC116053  Marah fabacea Richard R. Halse 2014-3-25 9029 Colusa Along the Sites-Logoda Road ca. 4.7 miles northeast of Logoda; on the west end of Grapevine Pass. 527 Comment
  GH404773  Marah fabacea R. R. Halse 2014-3-25 9029 Unknown Along the Sites-Logoda Road ca. 4.7 miles northeast of Logoda; on the west end of Grapevine Pass Comment
  SEINET6669708  Marah fabacea R. R. Halse 2014-3-25 9029 Colusa Along the Sites-Logoda Road about 4.7 miles northeast of Logoda; on the west end of Grapevine Pass 527 Comment
  SEINET7254189 Image available Marah fabacea Richard. R. Halse 2014-1 9029 Colusa Along the Sites-Logoda Road ca. 4.7 miles northeast of logoda; on the west end of Grapevine Pass 527 Comment
  UCD169735  Marah fabacea Richard R. Halse 2014-3-25 9029 Colusa Along the Sites-Logoda Road ca. 4.7 miles northeast of Logoda; on the west end of Grapevine Pass. 527 Comment
  RSA724228  Marah fabacea R. R. Halse 1988-2-20 3540 Contra Costa Along Marsh Creek Road, in the Dark Canyon area, 4 miles W of its junction with Deer Valley Road. 156 Comment
  SEINET8551076  Marah fabacea R. R. Halse 1988-2-20 3540 Contra Costa Along Marsh Creek Road, in the Dark Canyon area, 4 miles W of its junction with Deer Valley Road, near 13980 Marsh Creek Road, Clayton.. 156 Comment
  CAS-BOT-BC361307  Marah watsonii Richard R. Halse 2013-3-26 8744 Colusa Along the Leesville-Logoda Road ca 5.5 miles S of Logoda, or 3.2 miles N of the junction of the Leesville and Bear Valley Roads; Indian Valley 426 Comment
  GH404291  Marah watsonii R. R. Halse 2013-3-26 8744 Unknown Along the Leesville-Logoda Road ca. 5.5 miles south of Logoda, or 3.2 miles north of the junction of the Leesville and Bear Valley Roads; Indian Valley Comment
  RSA0010481  Marah watsonii Richard R. Halse 2014-3-25 9031 Colusa Along the Sites-Logoda Road ca. 4.7 miles northeast of Logoda; on the west end of Grapevine Pass. 527 Comment
  SEINET4208912  Marah watsonii Richard R. Halse 2013-3-26 8744 Colusa Along the Leesville-Logoda, or 3.2 miles north of the junction of Leesville and Bear Valley Roads; Indian Valley.; 0 426 Comment
  SEINET8551368  Marah watsonii R. R. Halse 2014-3-25 9031 Colusa W end of Grapevine Pass, along the Sites-Logoda Road, ca 4.7 miles NE of Logoda. 527 Comment
  CDA43203  Medicago polymorpha Richard R. Halse 2015-3-25 9374 Stanislaus Patterson; by the intersection of Speno Drive and Annamarie Ave. Comment
  CHSC98780  Medicago polymorpha Richard R. Halse 2007-3-25 7133 Mendocino Along State Hwy. 1, ca. 5.2 miles south of Westport. 24 Comment
  RSA730231  Medicago polymorpha Richard R. Halse 2007-3-25 7133 Lake Along State Hwy. 20 ca. 1.3 miles W of Upper Lake just past junction with State Hwy. 29. 406 Comment
  SEINET13752241 Image available Medicago polymorpha Richard R. Halse 2015-1 9374 Stanislaus Patterson; by the intersection of Speno Drive and Annamarie Ave. 55 Comment
  SEINET255529  Medicago polymorpha Richard R. Halse 2007-3-22 7103 Colusa Williams; by junction of 5th Street and B Street. 25 Comment
  UC1952500  Medicago polymorpha Richard R. Halse 2007-3-22 7103 Colusa Williams, by junction of 5th Street and B Street 25 Comment
  SEINET7839776  Medicago polymorpha R. R. Halse 2007-3-25 7133 Mendocino Along State Hwy. 1, ca. 5.2 miles south of Westport 24 Comment
  CDA43188  Melica imperfecta Richard R. Halse 2015-3-22 9336 Santa Clara Along State Hwy 152 ca. 8.3 miles northeast of its junction with the Casa de Fruta Parkway. Comment
  SEINET8693912 Image available Melica imperfecta Richard R. Halse 2015-1 9337 Santa Clara Along State Hwy. 152 ca. 8.3 miles northeast of its junction with the Casa de Fruta Parkway 259 Comment
  SEINET9001820  Melica imperfecta R. R. Halse 2015-1 9337 Santa Clara Along State Hwy 152 ca 8.3 miles NE of its junction with the Casa de Fruta Parkway. 259 Comment
  CDA43223  Melilotus indicus Richard R. Halse 2012-3-25 8421 San Benito Anlong State Hwy. 25 at its junction with the Coalinga Road. Comment
  CHSC114046  Melilotus indicus Richard R. Halse 2012-3-25 8421 San Benito Along State Hwy 25 at it junction with the Coalinga Road. 580 Comment
  SEINET4208659  Melilotus indicus Richard R. Halse 2012-3-25 8421 San Benito Along State Hwy. 25 at its junction with the Coalinga Road.; 0 580 Comment
  SEINET7760543  Melilotus indicus R. R. Halse 2012-3-25 8421 San Benito Along State Hwy. 25 at its junction with the Coalinga Road. 580 Comment
  UC1766181  Mimulus aurantiacus Richard R. Halse 1988-6-13 3632 San Diego On the N side of Batiquitos Lagoon, which is about 3 airline miles N of Encinitas, at the end of Batiquitos Drive, just E of Interstate Hwy 5. 3 Comment
  SEINET13764366  Mohavea R. R. Halse 1978-3-16 1687 San Diego Fish Creek Camp-ground, Anza-Borrego Desert State Park; Split Mountain. 120 Comment
  SEINET8228311  Mohavea Richard R. Halse 1978-3-16 1687 San Diego Fish Creek Camp-ground, Anza-Borrego Desert State Park; Split Mountain. 120 Comment
  SEINET11261951  Mollugo verticillata Richard R. Halse 2006-8-2 6979 Butte Chico, in the Lindo Channel Greenway where it crosses under Mangrove Ave.; 0 92 Comment
  SEINET6645727  Mollugo verticillata R. R. Halse 2006-8-2 6979 Butte Chico; in the Lindo Channel Greenway where it crosses under Mangrove Ave. 92 Comment
  UCD99635  Mollugo verticillata Richard R. Halse 2006-8-2 6979 Butte Chico; in the Lindo Channel Greenway where it crosses under Mangrove Ave. 92 Comment
  RSA722574  Mollugo verticillata R. R. Halse 2006-8-2 6979 Butte Chico. In the Lindo Channel Greenway where it crosses under Mangrove Ave. 92 Comment
  SEINET8263327  Mollugo verticillata Richard R. Halse 2006-8-2 6979 Butte Chico; in the Lindo Channel Greenway where it crosses under Mangrove Ave. 92 Comment
  SEINET892744  Monardella linoides subsp. sierrae Richard R. Halse 1974-1 1047 Inyo Inyo National Forest, 7 miles west of Big Pine on the dry, gravelly slopes above Big Pine Creek 1981 Comment
  CDA36740  Monolopia lanceolata Richard R. Halse 2011-3-21 8138 San Benito Along State Hwy 25 ca 1.4 miles north of the Monterey County Line or 12.9 miles north of its junction with State Hwy 198. Comment
  CHSC113822  Monolopia lanceolata Richard R. Halse 2011-3-21 8138 San Benito Along State hwy. 25 ca. 1.4 miles north of the Monterey County Line or 12.9 miles north of its junction with State Hwy. 198. 328 Comment
  CHSC118464  Monolopia lanceolata Richard R. Halse 2016-3-23 9676 Kings Along State Hwy. 269 ca. 0.6 miles north of Avenal. 288 Comment
  GH403187  Monolopia lanceolata R. R. Halse 2011-3-21 8141 Unknown Along State Hwy. 25 ca. 2.8 miles south of the San Benito County Line or 8.7 miles north of its junction with State Hwy. 198 Comment
  RSA723974  Monolopia lanceolata R. R. Halse 2002-3-26 6141 Fresno Along State Highway 198, 5.7 miles southwest of Coalinga 271 Comment
  SEINET11602090 Image available Monolopia lanceolata R. R. Halse 2002-3-26 6141 Fresno Southwest of Coalinga; Along State Highway 198, 5.7 miles southwest of Coalinga 271 Comment
  SEINET13772001 Image available Monolopia lanceolata R. R. Halse 2016-1 9676 Kings Along State Hwy 269, ca., 0.6 miles N of Avenal. 288 Comment
  RSA722575  Munroa squarrosa Richard Halse 2006-8-3 6988 Modoc Along Jess Valley Road ca. 4 miles east of Likely, just past bridge over the Pit River. 1387 Comment
  SEINET3125072 Image available Munroa squarrosa Richard R. Halse 2006-8-3 6988 Modoc Along Jess Valley Road ca. 4 miles east of Likely, just past bridge over the Pit River. 1387 Comment
  SEINET8400744  Munroa squarrosa Richard R. Halse 2006-8-3 6988 Modoc Along Jess Valley Road ca. 4 miles east of Likely, just past bridge over the Pit River. 1387 Comment
  UC1779146  Nama demissa var. demissa Richard R. Halse 2001-3-27 5970 San Bernardino Along Amboy Road 23.6 mi ENE of its junction with Adobe Rd in Twentynine Palms 673 Comment
  CHSC117392  Nassella pulchra Richard R. Halse 2015-3-23 9348 San Luis Obispo Santa Lucia Range; along Santa Rosa Creek Road 2 miles northwest of its junction with State Hwy. 46; east of Cambria. 435 Comment
  SEINET8754023 Image available Nassella pulchra Richard R. Halse 2015-1 9348 San Luis Obispo Santa Lucia Range; along Santa Rosa Creek Road 2 miles northwest of its junction with State Hwy. 46; east of Cambria 435 Comment
  CAS-BOT-BC361305  Nemophila heterophylla Richard R. Halse 2013-3-26 8738 Colusa Along the Leesville Road ca. 5.6 miles NW of its junction with State Hwy 20, west of Williams. 157 Comment
  GH404298  Nemophila heterophylla R. R. Halse 2013-3-26 8738 Unknown Along the Leesville Road ca. 5.6 miles northwest of its junction with State Hwy. 20, west of Williams Comment
  SEINET5520955  Nemophila heterophylla R. R. Halse 2007-3-23 7112 El Dorado Along State HWY 49 about 1.9 miles southeast of Coloma or 5.3 miles northwest of Placerville 356 Comment
  SEINET5585803  Nemophila heterophylla Richard R. Halse 2013-1 8738 Colusa Along the Leesville Road ca. 5.6 miles northwest of its junction with State Hwy. 20, west of Williams. 157 Comment
  SEINET7856709  Nemophila heterophylla R. R. Halse 2013-3-26 8738 Colusa Along the Leesville Road ca. 5.6 miles northwest of its junction with State Hwy. 20, west of Williams. 157 Comment
  UC1952533  Nemophila heterophylla Richard R. Halse 2007-3-23 7112 El Dorado Along State Hwy 49 ca. 1.9 mi SE of Coloma or 5.3 mi NW of Placerville 356 Comment
  UCD169730  Nemophila heterophylla Richard R. Halse 2013-3-26 8738 Colusa Along the Leesville Road ca. 5.6 miles northwest of its junction with State Hwy. 20, west of Williams. 157 Comment
  CHSC118643  Nemophila menziesii var. menziesii Richard R. Halse 2016-3-24 9681 Mendocino Along U.S. Hwy. 101 ca. 5 miles south of Laytonville. 469 Comment
  SEINET14188828  Nemophila menziesii var. menziesii R. R. Halse 2016-3-24 9681 Mendocino Along US Hwy 101 ca. 5 mi S of Laytonville 469 Comment
  SEINET3872317  Nemophila menziesii var. menziesii Richard R. Halse 2010-3-25 7852 Mendocino Along U.S. Hwy 101 ca 12 miles north of Willets or 8 miles south of Laytonville.; 0 373 Comment
  POM324048  Nemophila parviflora var. austiniae R. R. Halse 1976-6-13 1399 Modoc Modoc National Forest, Upper Rush Creek Campground. 1585 Comment
  CAS-BOT-BC231684  Nicotiana glauca Richard R. Halse 1988-6-13 3635 San Diego On the north side of Batiquitos Lagoon, which is about 3 airline miles north of Encinitas, at the end of Batiquitos Drive, just east of Interstate Hwy. 5 3 Comment
  RSA730238  Nicotiana glauca Richard R. Halse 2007-3-25 7123 Colusa Along State Hwy 20, ca 7.8 miles northeast of its junction with State Hwy 16, at base of Salt Canyon. (WGS84) 100 Comment
  SEINET6174905  Nicotiana glauca R. R. Halse 2007-3-25 7123 Colusa Along State Hwy. 20 ca 7.8 miles NE of junction with State Hwy. 16 at base of Salt Canyon, 100 Comment
  UC1766165  Nicotiana glauca Richard R. Halse 1988-6-13 3635 San Diego 3 mi (air) N of Encinitas (Batiquitos Lagoon, N side; at the end of Batiquitos Drive, just E of Int Hwy 5) 3 Comment
  RSA669473  Orthocarpus erianthus Richard R. Halse 2001-3-28 5974 Butte Along State Hwy 99, 2.3 miles south of its junction with State Hwy 149, near Gold Creek. 40 Comment
  CHSC113830  Oxalis pes-caprae Richard R. Halse 2011-3-22 8144 San Luis Obispo Along State Hwy. 1 ca. 2 miles south of San Simeon, where San Simeon Creek enters the Pacific Ocean. 3 Comment
  GH421755  Oxalis pes-caprae R. H. Halse 2011-3-22 8144 Unknown Along State Hwy. 1, ca. 2 miles south of San Simeon, where San Simeon Creek enters the Pacific Ocean Comment
  RSA724225  Oxalis pes-caprae R. R. Halse 1988-2-14 3538 Solano Vallejo, along Sonoma Blvd between Magazine St. and Sandy Beach Road 36 Comment
  SEINET3873106  Oxalis pes-caprae Richard R. Halse 2011-3-22 8144 San Luis Obispo Along State Hwy. 1 ca 2 miles south of San Simeon, where San Simeon Creek enters the Pacific Ocean.; 0 3 Comment
  SEINET6645813  Oxalis pes-caprae R. R. Halse 1988-2-14 3538 Solano Vallejo, vacant lot along Sonoma Blvd. between Magazine St. and Sandy Beach Rd. just eat of Carquinez Heights. 36 Comment
  CAS-BOT-BC413306  Oxytheca perfoliata Richard R. Halse 1976-6-11 1378 Mono Chalfant Valley; along U.S. Hwy. 6, about 18.5 mi. S. of Benton 1341 Comment
  CHSC113828  Parietaria judaica Richard R. Halse 2011-3-23 8157 Monterey Pacific Grove; along the Monterey Bay Coastal Trail near intersection of Oceanview and Forest Streets. 6 Comment
  SEINET3871858  Parietaria judaica Richard R. Halse 2011-3-23 8157 Monterey Pacific Grove; along the Monterey Bay Coastal Trail near intersection of Oceanview and Forest Streets.; 0 6 Comment
  SEINET6731010  Parietaria judaica R. R. Halse 2011-3-23 8157 Monterey Pacific Grove; along the Monterey Bay Coastal Trail near intersection of Oceanview and Forest Streets. 6 Comment
  SEINET13354836  Pectocarya platycarpa R. R. Halse 2001-3-26 5961 San Bernardino Just N of Twentynine Palms in the Marine Corps Air-Ground Combat Center, Mainside Area. 557 Comment
  UC1779122  Pectocarya platycarpa Richard R. Halse 2001-3-26 5961 San Bernardino just N of Twentynine Palms (Marine Corps Air-Ground Combat Center, Mainside Area) 557 Comment
  RSA0060516  Pedicularis densiflora Richard R. Halse 2014-3-25 9035 Colusa Along the Bear Valley Road ca. 1.8 miles west northwest of its junction with State Hwy. 20. 378 Comment
  SEINET11263257  Pedicularis densiflora Richard R. Halse 2014-3-25 9035 Colusa Along the Bear Valley Road ca. 1.8 miles WNW of its junction with State Hwy 20.; 0 378 Comment
  SEINET13752247 Image available Pedicularis densiflora Richard R. Halse 2015-1 9378 Lake Along State Hwy. 20 ca. 0.6 miles northeast of its junction with State Hwy. 53 or 3.2 miles east of Clearlake Oaks. 519 Comment
  SEINET13753666  Pedicularis densiflora R. R. Halse 2014-3-25 9035 Colusa Along the Bear Valley Road ca. 1.8 miles WNW of its junction with State Hwy 20. 378 Comment
  SEINET8753964 Image available Pedicularis densiflora Richard R. Halse 2015-1 9378 Lake Along State Hwy. 20 ca. 0.6 miles northeast of its junction with State Hwy. 53 or 3.2 miles east of Clearlake oaks 519 Comment
  SEINET13753668  Pedicularis densiflora R. R. Halse 1974-3-23 986 Santa Cruz Ben Lomand Mtn. area, Eagle Rock 671 Comment
  CAS-BOT-BC265718  Pennisetum setaceum Richard R. Halse 1988-6-13 3631 San Diego On the north side of Batiquitos Lagoon, which is about 3 airline miles north of Encinitas at the end of Batiquitos Drive, just east of interstate Highway 5 3 Comment
  CHSC114049  Pennisetum setaceum Richard R. Halse 2012-3-26 8437 San Luis Obispo Along State Hwy 1 at the fnorth edge of Cayucos, by exit 285. 29 Comment
  GH404297  Pennisetum setaceum R. R. Halse 2012-3-26 8437 Unknown Along State Hwy. 1 at the north edge of Cayucos, by exit 285 Comment
  SEINET248554 Image available Pennisetum setaceum Richard R. Halse 1988-6-13 3631 San Diego On the N side of Batiquitos Lagoon, ca. 3 air miles N of Encinitas. 3 Comment
  SEINET3367921 Image available Pennisetum setaceum Richard R. Halse 2012-3-26 8437 San Luis Obispo Along State Hwy 1 at the north edge of Cayucos, by exit 285 29 Comment
  UCD169725  Pennisetum setaceum Richard R. Halse 2012-3-26 8437 San Luis Obispo San Luis Obispo County: Along State Hwy. 1 at the north edge of Cayucos, by exit 285. 29 Comment
  SEINET10921125  Pennisetum setaceum Richard R. Halse 1988-6-13 Halse 3631 San Diego On the north side of Batiquitos Lagoon, which is about 3 airline miles north of Encinitas, at the end of Batiquitos Drive, just east of Interstate Highway 5. 3 Comment
  SEINET4691107  Pennisetum setaceum R. R. Halse 1988-6-13 3631 San Diego On the north side of Batiquitos Lagoon, about 3 air miles north of Encinitas. 3 Comment
  NY571199  Penstemon azureus var. azureus W. D. Halse s.n. Unknown Valley of the Sacramento Comment
  CHSC118649  Penstemon deustus Richard R. Halse 2016-5-29 9720 Siskiyou Along Hilt Road by its junction with Interstate Hwy. 5, east of Hilt. 939 Comment
  SEINET13763668 Image available Penstemon deustus R. R. Halse 2016-5-29 9720 Siskiyou Along Hilt Road, E of Hilt by its intersection with I-5. 939 Comment
  SEINET10334325  Penstemon heterophyllus Richard R. Halse 1989-5-7 3823 Glenn Along Road 306 by Burrows Gap, 2.7 miles south of its junction with Newville Road or 1.9 miles north of Chrome 252 Comment
  RSA722578  Penstemon heterophyllus Richard R. Halse 1989-5-7 3823 Glenn Along Road 306 by Burrows Gap, 2.7 miles S of its jct with Newville Road or 1.9 miles N of Chrome. 252 Comment
  SBBG94560  Penstemon heterophyllus R. R. Halse 1989-5-7 3823 Glenn Rd 306 by Burrows Gap, 2.7 mi S of its jct with Newville Rd or 1.9 mi N of Chrome 252 Comment
  NY601701  Penstemon heterophyllus var. heterophyllus R. R. Halse 1989-5-7 3823 Glenn Along Road 306 by Burrows Gap, 2.7 miles south of its junction with Newville Road or 1.9 miles north of Chrome. 252 Comment
  CAS-BOT-BC239143  Penstemon newberryi var. berryi Richard R. Halse 1976-6-9 1366 El Dorado El Dorado Nat'l Forest; along State Hwy. 89 2.8 mi. S. of its junction with U.S. Hwy. 50 2011 Comment
  CHSC118594  Penstemon speciosus Richard R. Halse 2016-5-29 9721 Siskiyou Along Hilt Road by its junction with Interstate Hwy. 5, east of Hilt. 939 Comment
  SEINET13761771 Image available Penstemon speciosus R. R. Halse 2016-5-29 9721 Siskiyou Along Hilt Road, E of Hilt by its intersection with I-5. 939 Comment
  SEINET10665160 Image available Pentagramma triangularis subsp. triangularis Richard R. Halse 1977-5-25 Halse 1580 Calaveras Along State Highway 49, ca. 1 mile S of the Mokelumne River/Amador County Line. T05N R11E S11. 341 Comment
  CAS-BOT-BC222705  Perideridia gairdneri subsp. gairdneri S. D. Halsey 1908-9-15 s.n. Santa Clara Palo Alto Comment
  SEINET5767575  Peritoma arborea R. R. Halse 2002-3-25 6133 San Bernardino Along State Highway 247, 26 miles northwest of Yucca Valley or 17 miles east of Lucerne Valley 922 Comment
  CHSC113831  Peritoma arborea var. globosa Richard R. Halse 2011-3-24 8159 Merced Along State Hwy. 152 ca 15.8 miles northeast of its junction with State Hwy. 156; hillsides above the San Luis Reservoir. 194 Comment
  GH421800  Peritoma arborea var. globosa R. H. Halse 2011-3-24 8159 Unknown Along State Hwy. 152 ca. 15.8 miles northeast of its junction with State Hwy. 156; hillsides above the San Luis Reservoir Comment
  SEINET3873008  Peritoma arborea var. globosa Richard R. Halse 2011-3-24 8159 Merced Along State Hwy. 152 ca 15.8 miles northeast of its junction with State Hwy. 156; hillsides above the San Luis Reservoir.; 0 194 Comment
  SEINET5767578  Peritoma arborea var. globosa R. R. Halse 2011-3-24 8159 Merced Along State Hwy. 152 ca 15.8 miles northeast of its junction with State Hwy. 156; hillsides above the San Luis Reservoir.; 0 194 Comment
  CHSC118462  Petasites frigidus var. palmatus Richard R. Halse 2016-3-24 9684 Humboldt Along U.S. Hwy. 101 ca. 9.6 miles south of Orick. 8 Comment
  SEINET13978219 Image available Petasites frigidus var. palmatus R. R. Halse 2016-1 9684 Humboldt Along US Hwy 101 ca. 9.6 mi S of Orick. 8 Comment
  SEINET223596  Petrorhagia dubia Richard R. Halse 1977-5-26 1585 Tehama By the first rest area north of Red Bluff along Interstate 5, 9 miles south of the Shasta County line. 125 Comment
  RSA669477  Petrorhagia dubia R. R. Halse 1977-5-26 1585 Tehama Creek bed by the first rest area N of Red Bluff along Interstate Hwy 5, 9 miles S of the Shasta County Line. 125 Comment
  RSA722579  Phacelia adenophora R. R. Halse 1975-6-20 1198 Lassen Madeline Plains, along Lassen County Road 508, 1.5 miles east of Termo. 1590 Comment
  NY38070  Phacelia argentea R. R. Halse 1989-5-14 3850 Del Norte Beach at the end of Kellogg Road, about 3 airline miles west of Fort Dick 3 Comment
  RSA523699  Phacelia argentea Richard Halse 1989-5-14 3850 Del Norte Beach at the end of Kellogg Road, about 3 airline miles west of Fort Dick 3 Comment
  SEINET7357820  Phacelia argentea Richard R. Halse 1989-5-14 3850 Del Norte Beach at the end of Kellogg Road, about 3 airline miles west of Fort Dick.; 0 3 Comment
  SEINET249351 Image available Phacelia bicolor Richard R. Halse 1974-6-24 1043 Inyo Along State Hwy. 168, in the foothills W of Bishop, 14.7 miles W of its junction with U.S. Hwy. 395. 2316 Comment
  GH403607  Phacelia cicutaria R. R. Halse 2007-3-24 7120 Unknown Along State Hwy. 140 ca. 7.6 miles west of Mariposa Comment
  CHSC99465  Phacelia cicutaria var. cicutaria Richard R. Halse 2007-3-24 7120 Mariposa Along State Hwy. 140 ca. 7.6 miles west of Mariposa. 647 Comment
  RSA730224  Phacelia cicutaria var. cicutaria R. R. Halse 2007-3-24 7120 Mariposa Along State Highway 140 ca. 7.6 miles west of Mariposa. 647 Comment
  SEINET255521 Image available Phacelia cicutaria var. cicutaria Richard R. Halse 2007-3-24 7120 Mariposa Along State Hwy. 140 ca. 7.6 miles west of Mariposa. 647 Comment
  SEINET5537063  Phacelia cicutaria var. cicutaria R. R. Halse 2007-3-24 7120 Mariposa Along State Hwy 140 about 7.6 miles west of Mariposa. 647 Comment
  UC1779149  Phacelia cicutaria var. cicutaria Richard R. Halse 2001-3-23 5949 Kern Tehachapi Mountains; along State Hwy. 58 three mi W of junction with State Hwy. 223 483 Comment
  SEINET4681875  Phacelia crenulata var. crenulata Richard R. Halse 2001-3-26 5955 San Bernardino Just north of Twentynine Palms in the Marin Corps Air-Ground Combat Center, Mainside Area.; 0 557 Comment
  UC1779138  Phacelia crenulata var. crenulata Richard R. Halse 2001-3-26 5955 San Bernardino just N of Twentynine Palms (Marine Corps Air-Ground Combat Center, Mainside Area) 557 Comment
  SEINET5759525  Phacelia crenulata var. minutiflora R. R. Halse 1978-3-17 1698 Imperial Hills 9.4 miles north of Winterhaven along road to Picacho 150 Comment
  UCD120464  Phacelia fremontii Richard R. Halse 1978-3-25 1721 Inyo Along State Hwy. 178, near Salsberry Pass, 11.8 miles west of its junction with State Hwy. 127. 960 Comment
  SEINET5763806  Phacelia heterophylla R. R. Halse 1976-6-10 1368 Alpine Toiyabe National Forest, along State Hwy 89 & 4, S of Markleville, 1.4 miles N of the junction of the two hwys. 1707 Comment
  CHSC99457  Phacelia imbricata Richard R. Halse 1989-5-13 3841 Mendocino Along U. S. Hwy. 101, 10.7 miles south of its junction with State Hwy. 271 at the town of Cummings. On a roadbank. 456 Comment
  GH403181  Phacelia imbricata R. R. Halse 2010-3-25 7850 Unknown Along State Hwy. 20 ca. 10.7 miles southwest of its junction with Interstate Hwy. 5 at Williams; in Salt Canyon Comment
  SEINET5520514  Phacelia imbricata subsp. imbricata R. R. Halse 2010-3-25 7850 Colusa Along State Hwy. 20 ca 10.7 miles southwest of its junction with Interstate Hwy. 5 at Williams; in Salt Canyon.; 0 154 Comment
  RSA523700  Phacelia imbricata subsp. imbricata R. R. Halse 1989-5-13 3841 Mendocino Along U. S. Highway 101, 10.7 miles south of its junction with State Highway 271 at the town of Cummings. 456 Comment
  NY1056435  Phacelia lutea var. glandulifera R. R. Halse 1974-6-27 1055 Lassen In a road cut along U.S. Highway 395, 5.4 miles south of Ravendale 1620 Comment
  CAS-BOT-BC159043  Phacelia ramosissima var. austrolitoralis Richard R. Halse 1988-6-11 3627 San Diego above the salt marsh around Batiquitos Lagoon, about 3 airline miles north of Encinitas; along La Costa Ave. just east of I-5 3 Comment
  SEINET5506801  Phacelia ramosissima var. austrolitoralis R. R. Halse 1988-6-12 3627 San Diego At the far east end of Batiquitos Lagoon, which is about 3 airline miles north of Encinitas. 3 Comment
  RSA722687  Phacelia ramosissima var. ramosissima R. R. Halse 2006-8-3 6990 Lassen Modoc National Forest; along Blue Lake Road north of Blue Lake, ca. 15 miles ESE of Likely. 1860 Comment
  CDA36726  Phacelia tanacetifolia Richard R. Halse 2010-3-23 7838 San Luis Obispo Along County Road G14 just above the Nacimiento Dam or ca. one mile south of its junction with road G19. Comment
  CHSC111079  Phacelia tanacetifolia Richard R. Halse 2010-3-23 7838 San Luis Obispo Along County Road G14 just above the Nacimiento Dam or ca. one mile south of its junction with road G19. Comment
  CHSC118595  Phacelia tanacetifolia Richard R. Halse 2016-3-23 9678 Kings Along State Hwy. 269 ca. 0.6 miles north of Avenal. 288 Comment
  CHSC85648  Phacelia tanacetifolia Richard R. Halse 2002-3-26 6140 Fresno Along State Hwy. 198, 5.7 miles SW of Coalinga. On a road cut. 271 Comment
  SEINET13978218  Phacelia tanacetifolia R. R. Halse 2016-3-23 9678 Kings Along State Hwy 269 ca. 0.6 mi N of Avenal. 288 Comment
  SEINET244649 Image available Phacelia tanacetifolia Richard R. Halse 2002-3-26 6140 Fresno Long State Hwy. 198, 5.7 miles SW of Coalinga. 271 Comment
  SEINET5499597  Phacelia tanacetifolia R. R. Halse 2007-3-25 7129 Lake Along State HWY 20 about 7 miles northwest of Clearlake Oaks or 11.4 miles southeast of Upper Lake, at junction with Diane Ct. 396 Comment
  SEINET5499601  Phacelia tanacetifolia R. R. Halse 2002-3-26 6140 Fresno Southwest of Coalinga; Along State Highway 198, 5.7 miles southwest of Coalinga 270 Comment
  UC1779147  Phacelia tanacetifolia Richard R. Halse 2001-3-27 5872 Kern Tehachapi Mountains; along State Hwy. 58 at its junction with the Caliente-Bodfish Road 610 Comment
  CDA43189  Phalaris aquatica Richard R. Halse 2015-3-24 9355 San Luis Obispo San Simeon, just north of the Motel 6 at 9070 Castillo Drive. Comment
  SEINET8753993 Image available Phalaris aquatica Richard R. Halse 2015-1 9355 San Luis Obispo San Simeon, just north of the Motel 6 at 9070 Castillo Drive 17 Comment
  SEINET8941649  Phalaris aquatica R. R. Halse 2015-1 9355 San Luis Obispo San Simeon, just N of the Motel 6 at 9070 Castillo Drive. 17 Comment
  CDA43197  Phalaris canariensis Richard R. Halse 2015-3-24 9364 San Luis Obispo Western end of the Santa Maria Valley, at the end of Oso Flaco Lake Road; ca. 5 air miles south of Oceano. Comment
  SEINET8753957 Image available Phalaris canariensis Richard R. Halse 2015-1 9364 San Luis Obispo Western end of the Santa Maria Valley, at the end of Oso Flaco Lake Road; ca. 5 air miles south of Oceano 3 Comment
  SEINET8942112  Phalaris canariensis R. R. Halse 2015-1 9364 San Luis Obispo W end of the Santa Maria Valley, at the end of Oso Flaco Lake Road, ca. 5 air miles S of Oceano. 3 Comment
  GH395169  Pholistoma auritum R. R. Halse 2015-3-22 9335 Unknown Along State Hwy. 152 ca. 8.3 miles northeast of its junction with the Casa de Fruta Parkway Comment
  CHSC113824  Pholistoma auritum var. auritum Richard R. Halse 2011-3-22 8149 Santa Barbara Along State Hwy 1 near its junction with State Hwy. 135 ca. 15 miles south of Guadalupe. 149 Comment
  SEINET3872320  Pholistoma auritum var. auritum Richard R. Halse 2011-3-22 8149 Santa Barbara Along State Hwy. 1 near its junction with State Hwy. 135 ca 15 miles south of Guadalupe.; 0 149 Comment
  SEINET8693734 Image available Pholistoma auritum var. auritum Richard R. Halse 2015-1 9335 Santa Clara Along State Hwy 152 ca. 8.3 miles northeast of its junction with the Casa de Fruta parkway 259 Comment
  UC2047452  Pholistoma auritum var. auritum Richard R. Halse 2015-3-22 9335 Santa Clara Along State Highway 152, ca. 8.3 miles northeast of its junction with the Casa de Fruta Parkway. Comment
  CDA36739  Pholistoma membranaceum Richard R. Halse 2011-3-21 8135 San Benito Along State Hwy 25 ca 1.4 miles north of the Monterey County Line or 12.9 miles north of its junction with State Hwy 198. Comment
  CHSC86175  Pholistoma membranaceum Richard R. Halse 2002-3-26 6150 San Benito Along State Hwy. 25, 12.7 miles N of its junction with State Hwy. 198. Roadside bank. 304 Comment
  GH403184  Pholistoma membranaceum R. R. Halse 2011-3-21 8135 Unknown Along State Hwy. 25 ca. 1.4 miles north of the Monterey County Line or 12.9 miles north of its junction with State Hwy. 198 Comment
  SEINET244606  Pholistoma membranaceum Richard R. Halse 2002-5-26 6150 San Benito Along State Hwy. 25, 12.7 miles N of its junction with State Hwy. 198 304 Comment
  SEINET5499608  Pholistoma membranaceum R. R. Halse 2002-5-26 6150 San Benito Along State Hwy. 25, 12.7 miles N of its junction with State Hwy. 198 304 Comment
  UC2015827  Pholistoma membranaceum Richard R. Halse 2002-3-26 6150 San Benito Along State Hwy. 25, 12.7 miles N of its junction with State Hwy. 198 Comment
  RSA0010484  Phoradendron serotinum subsp. tomentosum Richard R. Halse 2014-3-24 9017 Glenn Mendocino National Forest; along Road FH-7 ca.10.8 miles west of its intersection with Road 306. 1098 Comment
  SEINET11263208  Phoradendron serotinum subsp. tomentosum Richard R. Halse 2014-3-24 9017 Glenn Along Road FH-7 ca. 10.8 miles west of its intersection with Road 306.; 0 1098 Comment
  RSA722573  Phytolacca americana R. R. Halse 2006-8-1 6977 Butte Chico. In the Lindo Channel Greenway where it crosses under Mangrove Ave. 92 Comment
  SEINET4890912  Phytolacca americana R. R. Halse 2006-8-2 6977 Butte Chico; in the Lindo Channel Greenway where it crosses under Mangrove Ave. 92 Comment
  CDA43229  Picris echioides Richard R. Halse 2012-3-27 8442 San Luis Obispo Along State Highway 1, ca. 1.4 miles south of Ragged Point, near the spot where the highway crosses over San Carpoforo Creek. Comment
  GH487990  Pinus attenuata R. R. Halse 2014-3-24 9016 Unknown Mendocino National Forest; along Road FH-7 ca. 9.4 miles west of its intersection with Road 306, at the Rattlesnake Firefighters Memorial. T21N R7W Sec 20 Comment
  GH487992  Pinus attenuata R. R. Halse 2014-3-24 9016 Unknown Mendocino National Forest; along Road FH-7 ca. 9.4 miles west of its intersection with Road 306, at the Rattlesnake Firefighters Memorial. T21N R7W Sec 20 Comment
  RSA0073202  Pinus attenuata Richard R. Halse 2014-3-24 9016 Glenn Mendocino National Forest; along Road FH-1 ca.9.4 miles west of its intersection with Road 306, at the Rattlesnake Firefighters Memorial. 863 Comment
  SEINET11262979  Pinus attenuata Richard R. Halse 2014-3-24 9016 Glenn Along Road FH-7 (State Hwy 162) ca. 9.4 miles W of its intersection with Road 306, at the Rattlesnake Firefighters Memorial.; 0 863 Comment
  SEINET11526703  Pinus attenuata Richard R. Halse 2014-3-24 9016 Glenn Mendocino National Forest; along Road FH-7, ca. 9.4 miles west of its intersection with Road 306, at the Rattlesnake Firefighters Memorial. 683 Comment
  NY62734  Pinus sabiniana R. R. Halse 1989-5-13 3838 Lake Along State Highway 175, one mile south of Whispering Pines 684 Comment
  SEINET12742741  Pinus sabiniana Richard R. Halse 1989-5-13 3838 Lake Along State Highway 175, one mile south of Whispering Pines. 684 Comment
  SEINET3875096  Pinus sabiniana Richard R. Halse 1989-5-13 3838 Lake Along State Highway 175, one mile south of Whispering Pines.; 0 684 Comment
  GH404769  Pinus sabiniana R. R. Halse 2014-3-24 9010 Unknown Mendocino National Forest; along Road FH-7 (State Hwy. 162) ca. 4.7 miles west of its junction with Road 306; northwest of Elk Creek. T21N R7W Sec 25 Comment
  RSA0010567  Pinus sabiniana Richard R. Halse 2014-3-24 9010 Glenn Mendocino National Forest; along Road FH-7 (State Hwy. 162) ca. 4.7 miles west of its junction with Road 306; northwest of Elk Creek. 464 Comment
  SEINET8060988 Image available Pinus sabiniana Richard R. Halse 2014-1 9010 Glenn Mendocino National Forest; along Road FH-7 (State Hwy. 162) ca. 4.7 miles west of its junction with Road 306; northwest of Elk Creek. 464 Comment
  CHSC118454  Plagiobothrys canescens Richard R. Halse 2016-3-19 9646 Tehama Along Newville Road ca. 8.2 miles northwest of its junction with Interstate Hwy. 5 at Orland; northeast end of Black Butte Reservoir near spillway to Stony Creek. 113 Comment
  CHSC118652  Plagiobothrys canescens Richard R. Halse 2016-3-23 9675 San Luis Obispo East of Paso Robles; along State Hwy. 46, ca. 3.4 miles west of its junction with State Hwy. 41W (Shandon Exit). 315 Comment
  RSA730246  Plagiobothrys canescens R. R. Halse 2007-3-22 7106 Colusa Williams; by junction of 5th Street and B Street. 25 Comment
  SD260919  Plagiobothrys canescens Richard R. Halse 2016-3-19 9646 Tehama Tehama Co., Ca: along Newville Rd ca. 8.2 miles northwest of its junction with interstate Hwy. 5 at Orland; northeast end of Black Butte Reservoir near spillway to Stony Creek 113 Comment
  SD260920  Plagiobothrys canescens Richard R. Halse 2016-3-23 9675 San Luis Obispo East of Paso Robles; along State Hwy 46, ca. 3.4 miles west of its junction with State Hwy. 41 W (Shandon Exit) 315 Comment
  SEINET13365312  Plagiobothrys canescens R. R. Halse 2007-3-23 7110 Sutter Along State Highway 20, ca. 7.9 miles W of Yuba City, E of Meridian. 12 Comment
  SEINET13365324  Plagiobothrys canescens R. R. Halse 2001-3-27 5973 Kern Tehachapi Mountains, along State Hwy 58 at its junction with the Caliente-Bodfish Road. 610 Comment
  SEINET13752231 Image available Plagiobothrys canescens Richard R. Halse 2015-1 9326 Tehama Corning; along Short Drive just west of its intersection with Edith Ave. 80 Comment
  SEINET14188813  Plagiobothrys canescens R. R. Halse 2016-1 9675 San Luis Obispo E of Paso Robles; along State Hwy 46, ca. 3.4 mi W of its junction with State Hwy 41 W (Shandon exit) 315 Comment
  SEINET8685771 Image available Plagiobothrys canescens Richard R. Halse 2015-1 9326 Tehama Corning; along Short Drive just west of its intersection with Edith Ave. 80 Comment
  UC1779145  Plagiobothrys canescens Richard R. Halse 2001-3-27 5873 Kern Tehachapi Mountains; along State Hwy. 58 at its junction with the Caliente-Bodfish Road 610 Comment
  UC1952532  Plagiobothrys canescens Richard R. Halse 2007-3-23 7110 Sutter Along State Hwwy 20 ca. 7.9 mio W of Yuba City, E of Meridian 12 Comment
  CHSC116054  Plagiobothrys nothofulvus Richard R. Halse 2014-3-24 9022 Glenn Along Road 306 on the north edge of Chrome. 284 Comment
  GH404772  Plagiobothrys nothofulvus R. R. Halse 2014-3-24 9022 Unknown Along Road 306 on the north edge of Chrome Comment
  RSA0060087  Plagiobothrys nothofulvus Richard R. Halse 2014-3-24 9022 Glenn Along Road 306 on the north edge of Chrome. 284 Comment
  UCR208989  Plagiobothrys stipitatus Richard R. Halse 2002-3-27 6156 Butte Sacramento Valley, at the junction of State Hwy 99 and Hamilton Nord Cana Hwy c. 8 miles NW of Chico 40 Comment
  GH395136  Plagiobothrys stipitatus var. micranthus R. R. Halse 2015-3-21 9327 Unknown Corning; along Short Drive just west of its intersection with Edith Ave. Comment
  RSA726683  Plagiobothrys stipitatus var. micranthus Richard Halse 2002-3-27 6156 Butte At the junction of State Hwy. 99 and Hamilton Nord Cana Hwy. ca. 8 miles NW of Chico. 40 Comment
  SEINET13752230 Image available Plagiobothrys stipitatus var. micranthus Richard R. Halse 2015-1 9327 Tehama Corning; along Short Drive just west of its intersection with Edith Ave. 80 Comment
  SEINET8755842  Plagiobothrys stipitatus var. micranthus Richard R. Halse 2015-1 9327 Tehama Corning; along Short Drive just west of its intersection with Edith Ave 80 Comment
  CDA43186  Plantago coronopus Richard R. Halse 2015-3-21 9329 Tehama Corning; along Short Drive just west of its intersection with Edith Ave. Comment
  CHSC117373  Plantago coronopus Richard R. Halse 2015-3-23 9353 San Luis Obispo Along State Hwy. 1 ca. two miles south of San Simeon; on the south side of San Simeon Creek where it enters the Pacific Ocean. 1 Comment
  GH395174  Plantago coronopus R. R. Halse 2015-3-23 9353 Unknown Along State Hwy. 1 ca. two miles south of San Simeon; on the south side of San Simeon Creek where it enters the Pacific Ocean Comment
  SEINET13752193 Image available Plantago coronopus Richard R. Halse 2015-1 9353 San Luis Obispo Along State Hwy. 1 ca. two miles south of San Simeon; on the south side of San Simeon Creek where it enters the Pacific Ocean. 1 Comment
  SEINET8754017 Image available Plantago coronopus Richard R. Halse 2015-1 9329 Tehama Corning; along Short Drive just west of its intersection with Edith Ave. 80 Comment
  RSA783305  Plantago elongata R. R. Halse 2010-3-20 7828 Colusa Williams. By junction of 5th Street and B Street. 25 Comment
  SEINET3873282  Plantago elongata Richard R. Halse 2010-3-20 7828 Colusa Williams; by junction of 5th Street and B Street.; 0 25 Comment
  SEINET8665579  Plantago elongata R. R. Halse 2010-3-20 7828 Colusa Williams; by junction of 5th Street and B Street 25 Comment
  RSA669476  Plantago elongata subsp. pentasperma R. R. Halse 2001-3-28 5976 Butte Along State Hwy 99, 2.3 miles south of its junction with State Hwy 149, near Gold Creek. 40 Comment
  CAS-BOT-BC366913  Plantago erecta Richard R. Halse 2013-3-27 8761 Colusa Along State Hwy. 20 just east of the Colusa/Lake County Line, ca. 14.6 miles E of the junction of State Hwys. 20 and 53 558 Comment
  CHSC113825  Plantago erecta Richard R. Halse 2010-3-24 7847 Santa Clara Along State Hwy. 152 ca. 3.7 miles west of the Merced County Line or 16.1 miles west of the junction of Hwy. 152 and State Hwy. 33. 195 Comment
  CHSC118635  Plantago erecta Richard R. Halse 2016-3-19 9649 Tehama Along Newville Road ca. 8.2 miles northwest of its junction with Interstate Hwy. 5 at Orland; northeast end of Black Butte Reservoir, near spillway to Stony Creek. 113 Comment
  SEINET8665581  Plantago erecta R. R. Halse 2013-3-27 8761 Colusa Along State Hwy. 20 just east of the Colusa/Lake County Line, ca 14.6 miles east of the junction of state Hwys. 20 and 53 558 Comment
  SEINET9171847  Plantago ovata R. R. Halse 2001-3-26 5963 San Bernardino Marine Corps Air-Ground Combat Center, Mainside Area, just N of Twentynine Palms. 557 Comment
  UC1779124  Plantago ovata Richard R. Halse 2001-3-26 5963 San Bernardino just N of Twentynine Palms (Marine Corps Air-Ground Combat Center, Mainside Area) 557 Comment
  SEINET8399419  Plantago ovata Richard R. Halse 1978-3-17 1691 San Diego Fish Creek Campground, Anza-Borrego Desert State Park. 120 Comment
  CHSC117380  Plantago ovata var. insularis Richard R. Halse 2015-3-24 9357 San Luis Obispo Western end of the Santa Maria Valley, at the end of Oso Flaco Lake Road; ca. 5 air miles south of Oceano. 3 Comment
  GH395178  Plantago ovata var. insularis R. R. Halse 2015-3-24 9357 Unknown Western end of the Santa Maria Valley, at the end of Oso Flaco Lake Road; ca. 5 air miles south of Oceano Comment
  CHSC67037  Platanus racemosa Richard R. Halse 1988-6-12 3641 San Diego In the far northeast corner of Batiquitos Lagoon, which is about 3 airline miles north of Encinitas. 4 Comment
Read comments
Apr 11 2013
  SEINET3872256  Polanisia dodecandra Richard R. Halse 2010-9-2 8109 Modoc Warner Mountains; Modoc National Forest; along State Hwy. 299 ca 2.8 miles west of Cedarville by the Cedar Creek Lower Trailhead.; 0 1619 Comment
  SEINET5850111  Polanisia dodecandra R. R. Halse 2010-9-2 8109 Modoc Warner Mountains; Modoc National Forest; along State Hwy. 299 ca 2.8 miles west of Cedarville by the Cedar Creek Lower Trailhead.; 0 1619 Comment
  RSA722691  Polanisia dodecandra subsp. trachysperma R. R. Halse 2006-8-2 6980 Butte Chico. In the Lindo Channel Greenway where it crosses under Mangrove Ave. 92 Comment
  SEINET5850115  Polanisia dodecandra var. trachysperma R. R. Halse 2006-8-2 6980 Butte Chico; in the Lindo Channel Greenway where it crosses under Mangrove Ave. 92 Comment
  CDA43192  Polygonum aviculare Richard R. Halse 2015-3-24 9359 San Luis Obispo Western end of the Santa Maria Valley, at the end of Oso Flaco Lake Road; ca. 5 air miles south of Oceano. Comment
  SEINET9002261  Polygonum aviculare R. R. Halse 2015-1 9359 San Luis Obispo W end of the Santa Maria Valley, at the end of Oso Flaco Lake Road, ca 5 air miles S of Oceano. 3 Comment
  CHSC99454  Polypodium scouleri Richard R. Halse 2007-3-26 7135 Del Norte Along U.S. Hwy. 101 at its junction with Wonder Stump Road north of Crescent City, ca. 5.6 miles south of Smith River. On large redwood stump. 59 Comment
  RSA730234  Polypodium scouleri R. R. Halse 2007-3-26 7135 Del Norte Along U.S. Highway 101 at its junction with Wonder Stump road north of Crescent City, ca. 5.6 miles south of Smith River 59 Comment
  SEINET255535 Image available Polypodium scouleri Richard R. Halse 2007-3-26 7135 Del Norte Along U. S. Hwy. 101 at its junction with Wonder Stump Road north ofCrescent City, ca 5.6 miles south of Smith River. 59 Comment
  SEINET3873786  Polypodium scouleri Richard R. Halse 2007-3-26 7135 Del Norte California: Along U.S. Hwy. 101 at its junction with Wonder Stump Road north of Crescent City, ca. 5.6 miles south of Smith river.; 0 59 Comment
  SEINET6166115  Polypodium scouleri R. R. Halse 2007-3-26 7135 Del Norte Along U. S. Hwy. 101 at its junction with Wonder Stump Road north ofCrescent City, ca 5.6 miles south of Smith River. 59 Comment
  CAS-BOT-BC237355  Polypogon monspeliensis S. D. Halsey 1908-11-7 s.n. San Mateo Salt marsh near Cooleys Landing Comment
  CDA43196  Polypogon monspeliensis Richard R. Halse 2015-3-24 9363 San Luis Obispo Western end of the Santa Maria Valley, at the end of Oso Flaco Lake Road; ca. 5 air miles south of Oceano. Comment
  SEINET14153535 Image available Polypogon monspeliensis Richard R. Halse 2015-1 9363 San Luis Obispo Western end of the Santa Maria Valley, at the end of Oso Flaco Lake Road; ca. 5 air miles south of Oceano. 3 Comment
  SEINET8753997 Image available Polypogon monspeliensis Richard R. Halse 2015-1 9363 San Luis Obispo Western end of the Santa Maria Valley, at the end of Oso Flaco Lake Road; ca. 5 air miles south of Oceano 3 Comment
  SEINET9001758  Polypogon monspeliensis R. R. Halse 2015-1 9363 San Luis Obispo W end of the Santa Maria Valley, at the end of Oso Flaco Lake Road, ca 5 air miles S of Oceano. 3 Comment
  RSA724221  Populus fremontii Richard R. Halse 1988-2-14 3536 Colusa Along State Hwy 20 where it crosses over Salt Creek at the E end of Salt Canyon. 100 Comment
  RSA724229  Populus fremontii Richard R. Halse 1988-2-14 3537 Colusa Along State Hwy 20 where it crosses over Salt Creek at the eastern end of Salt Canyon, 7.9 miles N of its junction with State Hwy 16. 100 Comment
  SEINET10333351  Populus fremontii R. R. Halse 1988-2-14 3536 Colusa Along State Hwy 20 where it crosses over Salt Creek at the E end of Salt Canyon. 100 Comment
  CDA43185  Pseudognaphalium biolettii Richard R. Halse 2015-3-23 9346 San Luis Obispo Along State Hwy. 1, ca. 5.8 miles south of Ragged Point or 6 miles north of San Simeon. Comment
  CHSC110361  Pseudognaphalium biolettii Richard R. Halse 2010-3-23 7835 Monterey Along State Hwy 1 ca 6 miles south of Big Sur or 16.4 miles northwest of Lucia. 141 Comment
  GH403178  Pseudognaphalium biolettii R. R. Halse 2010-3-23 7835 Unknown Along State Hwy. 1 ca. 6 miles south of Big Sur or 16.4 miles northwest of Lucia Comment
  SEINET13752229 Image available Pseudognaphalium biolettii Richard R. Halse 2015-1 9346 San Luis Obispo Along State Hwy. 1, ca. 5.8 miles south of Ragged Point or 6 miles north of San Simeon 14 Comment
  SEINET3871766  Pseudognaphalium biolettii Richard R. Halse 2010-3-23 7835 Monterey Along State Hwy. 1 ca 6 mi S of Big Sur or 16.4 mi NW of Lucia.; 0 141 Comment
  SEINET8754036 Image available Pseudognaphalium biolettii Richard R. Halse 2015-1 9346 San Luis Obispo Along State Hwy. 1, ca. 5.8 miles south of Ragged Point or 6 miles north of San Simeon 14 Comment
  UC2029545  Pseudognaphalium biolettii Richard R. Halse 2012-3-26 8429 San Luis Obispo Along State Highway 1, ca. 2.7 miles north of San Simeon, just south of the turnoff to the Hearst Castle; ca. 6 miles north of Cambria Comment
  CHSC114030  Pseudognaphalium californicum Richard R. Halse 2012-3-26 8427 San Luis Obispo Along State Hwy. 1, ca. 2.7 miles north of San Simeon, just south of the turnoff to the Hearst Castle; ca. 6 miles north of Cambria. 10 Comment
  GH404302  Pseudognaphalium californicum R. R. Halse 2012-3-26 8427 Unknown Along State Hwy. 1, ca. 2.7 miles north of San Simeon, just south of the turnoff of the Hearst Castle; ca. 6 miles north of Cambria Comment
  CDA43230  Pseudognaphalium luteoalbum Richard R. Halse 2012-3-27 8444 Monterey Along State Highway 1, ca. 3.2 miles north of Lucia. 0 Comment
  CHSC114057  Pseudognaphalium luteoalbum Richard R. Halse 2012-3-27 8444 Monterey Along Hwy. 1, ca. 3.2 miles north of Lucia. 71 Comment
  SEINET3367922 Image available Pseudognaphalium luteoalbum Richard R. Halse 2012-3-25 8419 Colusa Williams, Weedy area behind the Chinese Restaurant on D street 24 Comment
  SEINET4208527  Pseudognaphalium luteoalbum Richard R. Halse 2012-3-27 8444 Monterey Along State Hwy. 11, ca. 3.2 miles north of Lucia.; 0 71 Comment
  UC2029542  Pseudognaphalium luteoalbum Richard R. Halse 2012-3-27 8444 Monterey Along State Highway 1, ca. 3.2 miles north of Lucia Comment
  SEINET9001050  Pterostegia drymarioides R. R. Halse 2015-3-22 9331 Santa Clara Along State Hwy 152 ca 8.3 miles NE of its junction with the Casa de Fruta Parkway. 259 Comment
  CAS-BOT-BC362382  Pyrrocoma racemosa var. racemosa S. D. Halsey 1908-11-30 s.n. Santa Clara Palo Alto Comment
  JEPS21656  Pyrrocoma racemosa var. racemosa S. D. Halsey 1908-9-15 San Mateo Slough near Cooleys Landing, near Palo Alto. Comment
  GH404312  Quercus agrifolia R. R. Halse 2012-3-28 8449 Unknown Along U. S. Hwy. 152 ca. 8.7 miles northeast of its junction with State Hwy. 156 Comment
  SEINET3872531  Quercus agrifolia Richard R. Halse 2011-3-23 8156 Monterey Along County Road G16 (Carmel Valley Road) ca 8.6 miles southeast of its junction with State Hwy. 1.; 0 95 Comment
  RSA0010569  Quercus kelloggii Richard R. Halse 2014-3-24 9015 Glenn Mendocino National Forest; along Road FH-7 ca. 9.4 miles west of its intersection with Road 306, at the Rattlesnake Firefighters Memorial. 863 Comment
  SEINET10431631  Quercus kelloggii R. R. Halse 2014-1 9015 Glenn Mendocino NF, along Road FH-7, at the Rattlesnake Firefighters Memorial, ca 9.4 miles W of its intersection with Road 306. 863 Comment
  SEINET11262856  Quercus kelloggii Richard R. Halse 2014-3-24 9015 Glenn Mendocino National Forest, along Road FH-7 (State Hwy 162) ca. 9.4 miles W of its intersection with Road 306, at the Rattlesnake Firefighters Memorial.; 0 863 Comment
  SEINET8060982 Image available Quercus kelloggii Richard R. Halse 2014-1 9015 Glenn mendocino National Forest; along Road FH-7 ca. 9.4 miles west of its intersection with Road 306, at the Rattlesnake Firefighters Memorial. 863 Comment
  SEINET3872056  Ranunculus californicus Richard R. Halse 2011-3-24 8158 Santa Clara Along State Hwy. 152 ca 8.7 mi NE of its junction with State Hwy. 156 or ca 3.7 mi west of the Merced County Line.; 0 195 Comment
  SEINET8696628  Ranunculus californicus R. R. Halse 2011-3-24 8158 Santa Clara Along CA Hwy 152, ca 8.7 miles NE of its junction with CA Hwy 156, or ca 3.7 miles W of the Merced County Line. 195 Comment
  GH404314  Ranunculus canus R. R. Halse 2013-3-26 8740 Unknown Along the Leesville Road ca. 5.6 miles northwest of its junction with State Hwy. 20, west of Williams Comment
  CAS-BOT-BC361306  Ranunculus canus var. canus Richard R. Halse 2013-3-26 8740 Colusa Along the Leesville Road ca. 5.6 miles NW of its junction with State Hwy 20, west of Williams. 157 Comment
  CDA43224  Ranunculus canus var. canus Richard R. Halse 2013-3-26 8740 Colusa Along the Leesvilles Road ca 5.6 miles northwest of its junction with State Highway 20, west of Williams. Comment
  SEINET4208544  Ranunculus canus var. canus Richard R. Halse 2013-3-26 8740 Colusa Along the Leesville Road ca. 5.6 miles northwest of its junction with State Hwy. 20, west of Williams.; 0 157 Comment
  SEINET8696617  Ranunculus canus var. canus R. R. Halse 2013-3-26 8740 Colusa Along the Leesville Road, ca. 5.6 miles NW of its junction with CA Hwy 20, W of Williams. 157 Comment
  SEINET4208857  Ranunculus hebecarpus Richard R. Halse 2013-3-26 8739 Colusa Along the Leesville Road ca. 5.6 miles northwest of its junction with Stat Hwy. 20, west of Williams.; 0 157 Comment
  SEINET8699529  Ranunculus hebecarpus R. R. Halse 2013-3-26 8739 Colusa Along the Leesville Road ca 5.6 miles NW of its junction with CA Hwy 20, W of Williams. 157 Comment
  UCD169733  Ranunculus hebecarpus Richard R. Halse 2013-3-26 8739 Colusa Along the Leesville Road ca. 5.6 miles northwest of its junction with State Hwy. 20, west of Williams. 157 Comment
  UC1952501  Raphanus Richard Halse 2007-3-22 7105 Colusa Williams, by the junction of 5th Street and B Street 25 Comment
  CDA8773  Raphanus raphanistrum Richard R. Halse 2007-3-22 7104 Colusa By the junction of 5th Street and B Street, Williams. (39.1586 N,122.14724 W) Comment
  CHSC99463  Raphanus raphanistrum Richard R. Halse 2007-3-22 7104 Colusa Williams; by the junction of 5th Street and B Street, 25 Comment
  RSA730245  Raphanus raphanistrum R. R. Halse 2007-3-22 7104 Colusa Williams; by junction of 5th Street and B Street. 25 Comment
  SEINET255530  Raphanus raphanistrum Richard R. Halse 2007-3-22 7105 Colusa Williams; by the junction of 5th Street and B Street. 25 Comment
  CHSC91408  Raphanus sativus Richard R. Halse 1987-2-22 3376 Sonoma Along State Hwy. 121, .4 mile E of its junction with State Hwy. 116 at Big Bend in the Sonoma Valley. 6 Comment
  RSA523187  Raphanus sativus R. R. Halse 1987-2-22 3376 Sonoma Along State Hwy 121, 0.4 mile E of its junction with State Hwy 116 at Big Bend in the Sonoma Valley. 6 Comment
  SEINET11261081  Raphanus sativus Richard R. Halse 1987-2-22 3376 Lake Along State Hwy 121, 0.4 miles east of its junction with State Hwy 116 at Big Bend in the Sonoma Valley.; 0 6 Comment
  SEINET11522461  Raphanus sativus Richard R. Halse 1987-2-22 3376 Sonoma Sonoma Valley, along State Hwy 121, 0.4 mile E of its junction with State Hwy 116 at Big Bend. 6 Comment
  GH404771  Rhus aromatica R. R. Halse 2014-3-24 9020 Unknown Along Road 306 ca. 4.7 miles south of Chrome or 0.4 miles north of its junction with State Hwy. 162 Comment
  SEINET8042208  Rhus aromatica R. R. Halse 2010-3-21 7831 Yolo Along State Hwy 16, ca 7.6 miles S of its junction with State Hwy. 20 or 5.7 miles northwest of Rumsey. 180 Comment
  CHSC118619  Rhus ovata Richard R. Halse 2016-3-20 9653 Santa Clara Along State Hwy. 152 ca. 9.7 miles northeast of its junction with State Hwy. 156 or 8.3 miles northeast of the junction with the Casa de Fruta Parkway. 259 Comment
  SEINET13761484  Rhus ovata R. R. Halse 2016-1 9653 Santa Clara Along State Hwy 152 ca., 9.7 miles NE of its junction with State Hwy 156 or 8.3 miles NE of the junction with the Casa de Fruta Parkway. 259 Comment
  RSA783300  Rhus trilobata R. R. Halse 2010-3-21 7831 Yolo Along State Hwy 16 ca. 7.6 miles S of its junction with State Hwy 20 or 5.7 miles NW of Rumsey. 180 Comment
  SEINET3871794  Rhus trilobata Richard R. Halse 2010-3-21 7831 Yolo Along State Hwy. 16 ca 7.6 miles S of its junction with State Hwy. 20 or 5.7 miles northwest of Rumsey.; 0 180 Comment
  RSA730239  Ribes californicum var. californicum Richard Halse 2007-3-25 7127 Lake Along State Hwy. 20 ca. 0.7 miles east of its junction with State Hwy. 53, ca. 3.2 miles SE of Clearlake Oaks. WGS84 514 Comment
  SEINET5766035  Ribes californicum var. californicum R. R. Halse 2012-3-29 8460 Lake Along State Hwy 20 ca. 0.7 mile E of its junction with State Hwy 53. 528 Comment
  UCD169728  Ribes californicum var. californicum Richard R. Halse 2012-3-29 8460 Lake Along State Hwy. 20 ca. 0.7 miles east of its junction with State Hwy. 53. 528 Comment
  CHSC118456  Rigiopappus leptocladus Richard R. Halse 2016-5-29 9719 Siskiyou Along Hilt Road ca. 2.1 miles northwest of Hilt on the Oregon/California State Line. 876 Comment
  SEINET13763683 Image available Rigiopappus leptocladus R. R. Halse 2016-5-29 9719 Siskiyou Alin Hilt Road, ca 2.1 miles NW of Hilt, on the CA/OR state line. 876 Comment
  SEINET10397477  Salix lasiolepis R. R. Halse 2015-3-23 9344 San Luis Obispo Along State Hwy 1, ca 5.8 miles S of Ragged Point, 6 miles N of San Simeon. 14 Comment
  CHSC111080  Salvia columbariae Richard R. Halse 2010-3-23 7839 San Luis Obispo Along County Road G14 just above the Nacimiento Dam or ca. one mile south of its junction with road G19. 414 Comment
  SEINET15352505  Salvia columbariae R. R. Halse 2016-1 9670 Santa Barbara At the junction of State Hwy 1 and State Hwy 135, ca. 12 mi N of Lompoc. 169 Comment
  SEINET3873153  Salvia columbariae Richard R. Halse 2010-3-23 7893 San Luis Obispo Along County Road G14 just above the Nacimiento Dam or ca 1 mile south of its junction with road.; 0 414 Comment
  SEINET7970342  Salvia columbariae R. R. Halse 2010-3-23 7839 San Luis Obispo Along County Road G14, just above the Nacimiento Dam, or ca one mile S of its junction with County Road G19. 414 Comment
  CHSC111085  Salvia mellifera Richard R. Halse 2010-3-23 7836 San Luis Obispo Santa Lucia Range. Along State Hwy. 46 ca. 7.3 miles east of its junction with State Hwy. 1. 458 Comment
  SEINET3873156  Salvia mellifera Richard R. Halse 2010-3-23 7836 San Luis Obispo Along State Hwy. 46 ca 7.3 miles east of its junction with State Hwy. 1; Santa Lucia Range.; 0 458 Comment
  SEINET8018507  Salvia mellifera R. R. Halse 2010-3-23 7836 San Luis Obispo Santa Lucia Range, along State Hwy. 46, ca 7.3 miles east of its junction with State Hwy. 1. 458 Comment
  SEINET8693777 Image available Salvia mellifera Richard R. Halse 2015-1 9342 San Luis Obispo Along State Hwy. 1, ca. 5.8 miles south of Ragged Point or 6 miles north of San Simeon 14 Comment
  CHSC99459  Sanicula arctopoides Richard R. Halse 1989-5-14 3847 Del Norte Beach at the end of Kellogg Road ca. 3 air miles W of Fort Dick. 3 Comment
  RSA523191  Sanicula arctopoides Richard Halse, P. Vargas 1989-5-14 3847 Del Norte Beach at the end of Kellogg Road, about 3 airline miles west of Fort Dick. 3 Comment
  SEINET13945108 Image available Sanicula arctopoides Richard R. Halse 1989-1 3847 Del Norte Beach at the end of Kellogg Road, about 3 airline miles west of Fort Dick. Elev 3 m. T17N R1W SEC 17 3 Comment
  CHSC113815  Sanicula bipinnata Richard R. Halse 2010-3-24 7846 Santa Clara Along State Hwy. 152 ca. 3.7 miles west of the Merced County Line or 16.1 miles west of the junction of Hwy. 152 and State Hwy. 33. 195 Comment
  GH403595  Sanicula bipinnata R. R. Halse 2010-3-24 7846 Unknown Along State Hwy 152 ca. 3.7 miles west of the Merced County Line or 16.1 miles west of the junction of Hwy. 152 and State Hwy. 33 Comment
  SEINET11155668  Sanicula bipinnata R. R. Halse 2010-3-24 7846 Santa Clara Along State Hwy 152, ca 3.7 miles W of the Merced County Line, 16.1 miles W of the junction of Hwy 152 and State Hwy 33. 195 Comment
  SEINET3873487  Sanicula bipinnata Richard R. Halse 2010-3-24 7846 Santa Clara Along State Hwy. 152 ca 3.7 miles west of the Merced County Line or 16.1 miles west of the junction of Hwy. 152 and State Hwy. 33.; 0 195 Comment
  SEINET5585731  Sanicula bipinnata Richard R. Halse 2013-1 8741 Colusa Along the Leesville Road ca. 8.3 miles northwest of its junction with State Hwy. 20, west of Williams; or 4.8 miles southeast of the junction with Bear Valley Road. 314 Comment
  UC2029557  Sanicula bipinnata Richard R. Halse 2013-3-26 8741 Colusa Along the Leesville Road ca. 8.3 miles northwest of its junction with State Highway 20 west of Williams, or 4.8 miles southeast of the junction with Bear Valley Road Comment
  CHSC113817  Sanicula crassicaulis Richard R. Halse 2011-3-22 8143 San Luis Obispo Along State Hwy. 1, ca. 2 miles south of San Simeon, where San Simeon Creek enters the Pacific Ocean. 3 Comment
  GH403578  Sanicula crassicaulis R. R. Halse 2011-3-22 8143 Unknown Along State Hwy. 1, ca. 2 miles south of San Simeon, where San Simeon Creek enters the Pacific Ocean Comment
  SEINET3873483  Sanicula crassicaulis Richard R. Halse 2011-3-22 8143 San Luis Obispo Along State Hwy. 1, ca 2 miles south of the San Simeon, where San Simeon Creek enters the Pacific Ocean.; 0 3 Comment
  SEINET11155974  Sanicula crassicaulis R. R. Halse 1977-5-25 1581 Calaveras Along Hwy 49, on mile S of Mokelumne River. 340 Comment
  SEINET6631663 Image available Sarcodes sanguinea Richard R. Halse 1976-1 1394 Sierra Tahoe National forest, across the road from Cold Creek campground, along State Highway 89, 5.1 mi SE of Sierraville 1737 Comment
  CDA43206  Scandix pecten-veneris Richard R. Halse 2015-3-26 9381 Humboldt Along U.S. Hwy. 101 ca 2.4 miles southwest of Weott. Comment
  SEINET8754002 Image available Scandix pecten-veneris Richard R. Halse 2015-1 9381 Humboldt Along U.S. Hwy. 101 ca. 2.5 miles southeast of Weott 123 Comment
  SEINET13978220  Schismus arabicus R. R. Halse 2016-1 9656 San Benito Along State Hwy 25 at its junction with the Coalinga Rd, east of King City. 580 Comment
  CHSC118620  Schismus arabicus Richard R. halse 2016-3-20 9656 San Benito Along State Hwy. 25 at its junction with the Coalinga Road, east of King City. 580 Comment
  SEINET241740 Image available Schismus barbatus Richard R. Halse 5956 San Bernardino Just north of Twentynine Palms in the Marine Corps Air-Ground Combat Center, Mainside Area 557 Comment
  SEINET4891243  Schismus barbatus R. R. Halse 2001-3-26 5956 San Bernardino Just north of Twentynine Palms in the Marine Corps Air-Ground Combat Center, Mainside Area 557 Comment
  UC1779142  Schismus barbatus Richard R. Halse 2001-3-26 5956 San Bernardino just N of Twentynine Palms (Marine Corps Air-Ground Combat Center, Mainside Area) 557 Comment
  CHSC114035  Schoenoplectus acutus var. occidentalis Richard R. Halse 2012-8-20 8661 Lassen Along State Hwy. 139 at Eagle Lake, ca. 26.6 miles north of Susanville. 1558 Comment
  SEINET10333128  Schoenoplectus acutus var. occidentalis R. R. Halse 2012-8-20 8661 Lassen Along State Hwy. 139 at Eagle Lake, ca. 26.6 miles north of Susanville 1558 Comment
  SEINET3913277  Scirpus acutus Richard R. Halse 1989-5-7 3828 Yolo Along Road 89, .1 mile north of Winters, lining the banks of the Willows Canal.; 0 39 Comment
  GH403183  Scirpus nevadensis R. R. Halse 2010-8-25 8087 Unknown Along State Hwy. 139 ca. 26.2 miles north of Susanville on the northeast shore of Eagle Lake Comment
  RSA783686  Scirpus nevadensis R. R. Halse 2010-8-25 8087 Lassen Along State Hwy 139 ca. 26.2 mi N of Susanville on NE shore of Eagle Lake. 1559 Comment
  CAS-BOT-BC361311  Scoliopus bigelovii Richard R. Halse 2013-3-28 8766 Humboldt Along U.S. Hwy. 101 ca. 2.2 miles S of Exit 671 to Pepperwood 76 Comment
  CHSC114022  Scoliopus bigelovii Richard R. Halse 2013-3-28 8766 Humboldt Along U.S. Hwy. 101 ca. 2.2 miles south of Exit 671 to Pepperwood. 76 Comment
  GH404310  Scoliopus bigelovii R. R. Halse 2013-3-28 8766 Unknown Along U. S. Hwy. 101 ca. 2.2 miles south of Exit 671 to Pepperwood Comment
  SEINET4673868  Scoliopus bigelovii Richard R. Halse 2013-3-28 8766 Humboldt Along U.S. Hwy. 101 ca. 2.2 miles south of Exit 671 to Pepperwood.; 0 76 Comment
  SEINET8501887  Scoliopus bigelovii R. R. Halse 2013-3-28 8766 Humboldt Along US Hwy. 101 ca. 2.2 miles S of Exit 671 to Pepperwood. 76 Comment
  CDA43187  Scrophularia californica Richard R. Halse 2015-3-22 9336 Santa Clara Along State Hwy 152 ca. 8.3 miles northeast of its junction with the Casa de Fruta Parkway. Comment
  GH395167  Scrophularia californica R. R. Halse 2015-3-22 9336 Unknown Along State Hwy. 152 ca. 8.3 miles northeast of its junction with the Casa de Fruta Parkway Comment
  SEINET15325521 Image available Scrophularia californica Richard R. Halse 2015-1 9336 Santa Clara Along State Hwy 152, ca 8.3 miles NE of its junction with the Casa de Fruta Parkway. 259 Comment
  SEINET9001851  Scrophularia californica R. R. Halse 2015-1 9336 Santa Clara Along State Hwy 152, ca 8.3 miles NE of its junction with the Casa de Fruta Parkway. 259 Comment
  CAS-BOT-BC363740  Senecio hydrophilus S. D. Halsey 1908-9-15 s.n. Santa Clara Border of Salt Marsh, Palo Alto Comment
  NY64518  Sequoia sempervirens R. R. Halse 1989-5-13 3842 Humboldt Along U.S. Highway 101, 2 miles south of Weott 108 Comment
  RSA730333  Sequoia sempervirens R. R. Halse 1989-5-13 3842 Humboldt Along Highway 101, 2 miles south of Weott 108 Comment
  SEINET3876375 Image available Sequoia sempervirens Richard R. Halse 1989-5-13 3842 Humboldt Along U.S. Hwy 101, 2 miles south of Weott.; 0 108 Comment
  SEINET889972  Sida hederacea Richard R. Halse 1988-1 3629 San Diego At the far east end of Batiquitos Lagoon, which is about 3 airline miles north of Encinitas. 3 Comment
  SBBG101312  Sidalcea oregana R. R. Halse 1991-7-28 4246 Modoc St Hwy 139, 13 mi NW of its jct with St Hwy 299 1469 Comment
  RSA614432  Sidalcea oregana subsp. oregana R. R. Halse 1991-7-28 4246 Modoc Along State Highway 139, 13 miles NW of its junction with State Highway 299 1469 Comment
  CHSC113827  Silene gallica Richard R. Halse 2011-3-22 8145 San Luis Obispo Along State Hwy. 1 ca. 4.1 miles north of Guadalupe. 48 Comment
  GH421807  Silene gallica R. H. Halse 2011-3-22 8145 Unknown Along State Hwy. 1 ca. 4.1 miles north of Guadalupe Comment
  GH404776  Silene laciniata subsp. californica R. R. Halse 2014-3-25 9036 Unknown Along the Bear Valley Road ca. 1.8 miles west northwest of its junction with State Hwy. 20 Comment
  RSA0060081  Silene laciniata subsp. californica Richard R. Halse 2014-3-25 9036 Colusa Along the Bear Valley Road ca. 1.8 miles west northwest of its junction with State Hwy. 20. 378 Comment
  SEINET11262894  Silene laciniata subsp. californica Richard R. Halse 2014-3-25 9036 Colusa Along the Bear Valley Road ca. 1.8 miles W NW of its junction with State Hwy 20.; 0 378 Comment
  SEINET8879658  Silene laciniata subsp. californica R. R. Halse 2014-3-25 9036 Colusa Along the Bear Valley Road, ca 1.8 miles WNW of its junction with State Hwy 20. 378 Comment
  SEINET8879824  Silene menziesii R. R. Halse 2006-8-3 6992 Lassen Modoc NF, along Blue Lake Road N of Blue Lake, above Parsnip Creek, ca 15 miles ESE of Likely. 1860 Comment
  SEINET8223955  Silene menziesii Richard R. Halse 2006-8-3 6992 Lassen Modoc National Forest; along Blue Lake Road north of Blue Lake, ca. 15 miles ESE of Likely. 1860 Comment
  RSA722689  Silene menziesii subsp. menziesii R. R. Halse 2006-8-3 6992 Lassen Modoc National Forest; along Blue Lake Road north of Blue Lake, ca. 15 miles ESE of Likely. 1860 Comment
  CAS-BOT-BC74942  Sinapis arvensis Richard R. Halse 2002-3-26 6139 Fresno Along State Highway 198, ca. 3 miles southwest of Coalinga. 205 Comment
  CHSC110364  Sinapis arvensis Richard R. Halse 2010-3-20 7826 Colusa Along State Hwy 20 ca. 5.4 miles wwest of Colusa (junction of State Hwys 20 and 45). 17 Comment
  CHSC85764  Sinapis arvensis Richard R. Halse 2002-3-26 6139 Fresno Along State Hwy. 198, ca. 3 miles SW of Coalinga. 205 Comment
  RSA783303  Sinapis arvensis R. R. Halse 2010-3-20 7826 Colusa Along State Hwy 20 ca. 5.4 miles W of Colusa (junction of State Hwys 20 & 45). 17 Comment
  SEINET11561764  Sinapis arvensis R. R. Halse 2002-3-26 6139 Fresno Along State Hwy 198, about 3 miles SW of Coalinga. 205 Comment
  CDA43205  Sisymbrium irio Richard R. Halse 2015-3-25 9376 Stanislaus Patterson; by the intersection of Speno Drive and Annamarie Ave. Comment
  GH395150  Sisymbrium irio R. R. Halse 2015-3-25 9376 Unknown Patterson; by the intersection of Speno Drive and Annamarie Ave. Comment
  GH395151  Sisymbrium irio R. R. Halse 2015-3-25 9376 Unknown Patterson; by the intersection of Speno Drive and Annamarie Ave. Comment
  CHSC85593  Sisymbrium orientale Richard R. Halse 2002-3-26 6136 Fresno Along State Hwy. 198, 1 mile W of its junction with Interstate Hwy. 5, ca. 9 air miles NE of Coalinga. 163 Comment
  CHSC118452  Sisyrinchium bellum Richard R. Halse 2016-3-21 9662 San Luis Obispo San Simeon; along State Hwy. 1 by its intersection with Castillo Drive. 18 Comment
  SEINET14188822  Sisyrinchium bellum R. R. Halse 2016-3-21 9662 San Luis Obispo San Simeon; along State Hwy 1 by its intersection with Castillo Dr 18 Comment
  CHSC114061  Solanum parishii Richard R. Halse 2012-3-29 8456 Colusa Along State Hwy. 20 ca. 6.8 miles northeast of its junction with State Hwy16 176 Comment
  GH404300  Solanum parishii R. R. Halse 2012-3-29 8456 Unknown Along State Hwy. 20 ca. 6.8 miles northeast of its junction with State Hwy. 16 Comment
  SEINET6185643  Solanum parishii R. R. Halse 2012-3-29 8456 Colusa Along State HWY 20 about 6.8 miles northeast of its junction with State HWY 16 176 Comment
  CAS-BOT-BC174342  Solanum umbelliferum Richard R. Halse 2011-3-21 8136 San Benito Along State Hwy. 25 ca. 1.4 miles north of the Monterey County Line or 12.9 miles north of its junction with State Hwy. 198 328 Comment
  CHSC113821  Solanum umbelliferum Richard R. Halse 2011-3-21 8136 San Benito Along State hwy. 25 ca. 1.4 miles north of the Monterey County Line or 12.9 miles north of its junction with State Hwy. 198. 328 Comment
  CHSC118622  Solanum umbelliferum Richard R. Halse 2016-3-20 9655 Santa Clara Along State Hwy. 152 ca. 9.7 miles northeast of its junction with State Hwy. 156 or 8.3 miles northeast of the junction with the Casa de Fruta Parkway. 259 Comment
  GH403185  Solanum umbelliferum R. R. Halse 2011-3-21 8136 Unknown Along State Hwy. 25 ca. 1.4 miles north of the Monterey County Line or 12.9 miles north of its junction with State Hwy. 198 Comment
  NY820598  Solanum umbelliferum R. R. Halse 2002-3-26 6149 San Benito Along State Hwy. 25, 12.7 miles N of its junction with State Hwy. 198 304 Comment
  RSA726295  Solanum umbelliferum Richard R. Halse 2002-3-26 6149 San Benito Along State Hwy 25, 12.7 miles N of its junction with State Hwy 198. 304 Comment
  SEINET244632  Solanum umbelliferum Richard R. Halse 2002-3-26 6149 San Benito Along State Hwy. 25, 12.7 miles N of its junction with State Hwy. 198. 304 Comment
  SEINET6186044  Solanum umbelliferum R. R. Halse 2002-3-26 6149 San Benito Along State Highway 25, 12.7 miles north of its junction with State Highway 198 304 Comment
  SEINET12893938 Image available Solanum umbelliferum R. R. Halse 2011-1 8136 Unknown Comment
  CDA2507  Sorghum halepense Richard R. Halse 2006-8-2 6982 Butte In the Lindo Channel Greenway where it crosses under Mangrove Avenue, Chico. Comment
  RSA722694  Sorghum halepense R. R. Halse 2006-8-2 6982 Butte Chico. In the Lindo Channel Greenway where it crosses under Mangrove Ave. 92 Comment
  SEINET3125080 Image available Sorghum halepense Richard R. Halse 2006-8-2 6982 Butte Chico; in the Lindo Channel Greenway where it crosses under Mangrove Ave. 92 Comment
  SEINET5319143  Sorghum halepense R. Halse 2006-8-2 6982 Butte Chico; in the Lindo Channel Greenway where it crosses under Mangrove Ave. 92 Comment
  SEINET8233922  Sorghum halepense Richard R. Halse 2006-8-2 6982 Butte Chico; in the Lindo Channel Greenway where it crosses under Mangrove Ave. 92 Comment
  SEINET8233923  Sorghum halepense Richard R. Halse 2006-8-2 6982 Butte Chico; in the Lindo Channel Greenway where it crosses under Mangrove Ave. 92 Comment
  SEINET8408351  Spartium junceum Richard R. Halse 2006-8-3 6987 Butte Along State Hwy. 32 ca. 16.3 miles northeast of Chico, near junction with Platte Mountain Road. 1000 Comment
  SEINET8883999  Spergularia marina R. R. Halse 2012-3-28 8455 Colusa Williams, along 5th Street between intersections with C and D Streets, near railroad tracks. 24 Comment
  CAS-BOT-BC390546  Spergularia media S. D. Halsey 1908-10-1 s.n. San Mateo Redwood City Comment
  CAS-BOT-BC390547  Spergularia media S. D. Halsey 1908-10-1 s.n. San Mateo Redwood City Comment
  CHSC111081  Stachys bullata Richard R. Halse 2010-3-23 7832 Monterey Along State Hwy. 1 ca. 18.6 miles north of Big Sur. 24 Comment
  GH395148  Stachys bullata R. R. Halse 2015-3-23 9340 Unknown Along State Hwy. 1 ca. 1.7 miles south of Ragged Point Comment
  SEINET15325505 Image available Stachys bullata Richard R. Halse 2015-1 9340 San Luis Obispo Along State Hwy. 1 ca. 1.7 miles south of Ragged Point 21 Comment
  SEINET3873158  Stachys bullata Richard R. Halse 2010-3-23 7832 Monterey Along State Hwy. 1 ca 18.6 miles north of Big Sur.; 0 24 Comment
  SEINET8037322  Stachys bullata R. R. Halse 2010-3-23 7832 Monterey Along State Hwy. 1 ca 18.6 miles north of Big Sur. 24 Comment
  SEINET8693959 Image available Stachys bullata Richard R. Halse 2015-1 9340 San Luis Obispo Along State Hwy. 1 ca. 1.7 miles south of Ragged Point 21 Comment
  UC2047480  Stachys bullata Richard R. Halse 2015-3-23 9340 San Luis Obispo Along State Highway 1, ca. 1.7 miles south of Ragged Point. Comment
  CHSC96340  Stephanomeria lactucina Richard R. Halse 2006-8-4 6998 Modoc Along Patterson Mill Road ca. 4 miles southwest of its junction with Surprise Valley Road, east side of the southern Warner Mountains; Modoc National Forest. 2097 Comment
  SEINET11262516  Stephanomeria lactucina Richard R. Halse 2006-8-4 6998 Modoc Along Patterson Mill Road ca 4 miles southwest of its junction with Surprise Valley Road, east side of southern Warner Mountains.; 0 2097 Comment
  SEINET3125081 Image available Stephanomeria lactucina Richard R. Halse 2006-8-4 6998 Modoc Along Patterson Mill Road ca. 4 miles southwest of its junction with Surprise Valley Road, east side of the southern Warner Mountains; Modoc National Forest. 2097 Comment
  UCD136385  Stephanomeria lactucina Richard R. Halse 2006-8-4 6998 Modoc along Patterson Mill Road around 4 miles southwest of its junction with Surprise Valley road, east side of the southern Warner Mountains; Modoc National Forest. 2097 Comment
  GH403350  Stephanomeria lactucina R. H. Halse 2006-8-4 6998 Unknown Along patterson Mill Road ca. 4 miles southwest of its junction with Surprise Valley Road, east side of the southern Warner Mountains; Modoc National Forest. N 41.19254 ft W 120.12107 ft WGS84 Comment
  SEINET8223954  Stephanomeria lactucina Richard R. Halse 2006-8-4 6998 Modoc Along Patterson Mill Road ca. 4 miles southwest of its junction with Surprise Valley Road, east side of the southern Warner Mountains; Modoc National Forest. 2097 Comment
  RSA722690  Stephanomeria tenuifolia Richard R. Halse 2006-8-4 6998 Modoc Along Patterson Mill Road, ca 4 miles SW of its jct with Surprise valley Road, E side of the southern Warner Mtns. Modoc National Forest. 2097 Comment
  SEINET11610110  Streptanthella longirostris R. R. Halse 2001-3-26 5957 San Bernardino Marin Corps Air-Ground Combat Center, Mainside Area, just N of Twentynine Palms. 557 Comment
  UC1779139  Streptanthella longirostris Richard R. Halse 2001-3-26 5957 San Bernardino just N of Twentynine Palms (Marine Corps Air-Ground Combat Center, Mainside Area) 557 Comment
  RSA614430  Streptanthus tortuosus R. R. Halse 1977-5-24 1568 Mariposa Sierra National Forest; along State Hwy 140, 6.9 miles W of Indian Flat Campground. 396 Comment
  CAS-BOT-BC98296  Symphyotrichum subulatum var. parviflorum S. D. Halsey 1908-11-23 s.n. Santa Clara Palo Alto Comment
  SBBG101323  Taeniatherum caput-medusae R. R. Halse 1992-6-7 4491 Lake Short Mtn Landfill on E side of Interstate Hwy 5, ca. 3 airline mi S of Goshen Comment
  RSA0010482  Tamarix parviflora Richard R. Halse 2014-3-24 9021 Glenn Along Road 306 ca. 3.6 miles south of Chrome, across the road from the Grindstone Cemetery. Banks of Watson Creek. 200 Comment
  SEINET11263210  Tamarix parviflora Richard R. Halse 2014-3-24 9021 Glenn Along Road 306, ca. 3.6 miles S of Chrome. Across the road from the Grindstone Cemetery.; 0 200 Comment
  SEINET8082025 Image available Tamarix parviflora Richard R. Halse 2014-3-24 9021 Glenn Along Road 306 ca. 3.6 mi S of Chrome, across the road from the Grindstone Cemetery 200 Comment
  CHSC118615  Taraxia ovata Richard R. Halse 2016-3-21 9659 San Luis Obispo Along State Hwy. 1 at a vista point, ca. 11.8 miles north of San Simeon. 2 Comment
  RSA783307  Tetradymia canescens R. R. Halse 2010-8-26 8090 Lassen Along State Hwy 70 at Beckwourth Pass ca. 4.3 miles west of its junction with US Hwy 395 or 1.6 miles east of Sierra Valley. 1584 Comment
  SEINET7106806  Tetradymia canescens Richard R. Halse 2010-8-26 8090 Lassen Along State Hwy. 70 at Beckwourth Pass ca 4.3 miles west of its junction with U.S. Hwy. 395 or 1.6 miles E of Sierra Valley.; 0 1584 Comment
  GH395176  Tetragonia tetragonoides R. R. Halse 2015-3-23 9352 Unknown Along State Hwy. 1 ca. two miles south of San Simeon; on the south side of San Simeon Creek where it enters the Pacific Ocean Comment
  CAS-BOT-BC88020  Thelypodium crispum Richard R. Halse 1976-6-12 1389 Mono Near Big Alkali Lake, 3.1 miles northeast of Whitmore. 2097 Comment
  NY605095  Thelypodium crispum R. R. Halse 1976-6-12 1389 Mono Near Big Alkali Lake, 3.1 miles northeast of Whitmore. 2098 Comment
  CHSC96350  Thinopyrum intermedium Richard R. Halse 2006-8-3 6993 Modoc Modoc National Forest, Patterson Station Campground, ca. 15 air miles east of Likely, south end of the Warner Mountains. 2109 Comment
  SEINET3125869 Image available Thinopyrum intermedium Richard R. Halse 2006-1 6993 Modoc Modoc National Forest, Patterson Station Campground, ca. 15 air miles east of Likely, south end of the Warner Mountains. 2109 Comment
  SEINET8263329  Thinopyrum intermedium Richard R. Halse 2006-8-3 6993 Modoc Modoc National Forest, Patterson Station Campground, ca. 15 air miles east of Likely, south end of the Warner Mountains. 2109 Comment
  CHSC98781  Thysanocarpus curvipes Richard R. Halse 2007-3-24 7119 Mariposa Along State Hwy. 140 ca. 7.6 miles west of Mariposa. 747 Comment
  GH395147  Thysanocarpus curvipes R. R. Halse 2015-3-22 9338 Unknown Along U.S. Hwy. 101, west side of Hwy. at the Bradley Exit Comment
  RSA730232  Thysanocarpus curvipes Richard R. Halse 2007-3-24 7119 Mariposa Along State Highway 140, ca. 7.6 miles west of Mariposa. 647 Comment
  SEINET12438124  Thysanocarpus curvipes R. R. Halse 2007-3-24 7119 Mariposa Along State Hwy 140, ca 7.6 miles W of Mariposa. 647 Comment
  SEINET12438792  Thysanocarpus curvipes R. R. Halse 2002-3-26 6144 Monterey Mustang Ridge, along CA Hwy 198, NW of Priest Valley, 5.3 miles NW of Priest Valley. 660 Comment
  SEINET13752232 Image available Thysanocarpus curvipes Richard R. Halse 2015-1 9338 Monterey Along U.S. Hwy. 101, west side of Hwy. at the Bradley Exit. 176 Comment
  SEINET255489  Thysanocarpus curvipes Richard R. Halse 2007-3-24 7119 Mariposa Along State Hwy. 140 ca. 7.6 miles west of Mariposa. 647 Comment
  SEINET5648504 Image available Thysanocarpus curvipes Richard R. Halse 2007-1 7119 Mariposa Along State Hwy. 140 ca. 7.6 miles west of Mariposa.; Mariposa 647 Comment
  UC1952504  Thysanocarpus curvipes Richard R. Halse 2007-3-24 7119 Mariposa Along State Hwy 140 ca. 7.6 mi W of Mariposa 647 Comment
  UCD170119  Thysanocarpus curvipes Richard R. Halse 2007-3-24 7119 Mariposa Along State Hwy. 140 ca. 7.6 miles west of Mariposa. 647 Comment
  CHSC98779  Thysanocarpus radians Richard R. Halse 2007-3-23 7114 Tuolumne Along State Hwy. 49 ca. 0.7 miles north of Chinese Camp. 385 Comment
  RSA730353  Thysanocarpus radians Richard R. Halse 2007-3-23 7114 Tuolumne Along State Hwy 49, ca 7 miles N of Chinese Camp. 385 Comment
  SEINET12476807  Thysanocarpus radians R. R. Halse 2007-3-23 7114 Tuolumne Along State Hwy, 49 ca 0.7 mile N of Chinese Camp. 385 Comment
  GH395175  Toxicoscordion fontanum R. R. Halse 2015-3-26 9377 Unknown Along State Hwy. 20 ca. 0.6 miles northeast of its junction with State Hwy. 53 or 3.2 miles east of Clearlake Oaks Comment
  GH404307  Trichostema simulatum R. R. Halse 2012-8-30 8710 Unknown At the junction of State Hwy. 139 and the Lookout-Hackamore Road (N.F. Road 46 road to Bieber) ca. 16 miles northwest of Canby Comment
  SEINET4208345  Trichostema simulatum Richard R. Halse 2012-8-30 8710 Modoc At the junction of State Hwy. 139 and the Lookout-Hackamore Road (N.F. Road 46 road to Bieber); ca. 16 miles northwest of Canby.; 0 1418 Comment
  UC2029544  Trichostema simulatum Richard R. Halse 2012-8-30 8710 Modoc At the junction of State Highway 139 and the Lookout-Hackamore Road (N. F. Road 46 road to Bieber), ca. 16 miles northwest of Canby Comment
  RSA730939  Trifolium albopurpureum Richard R. Halse 2007-3-25 7126 Kings Along State Hwy. 20 ca. .7 miles east of its junction with State Hwy. 53, ca. 3.2 miles southeast of Clearlake Oaks. 514 Comment
  SEINET7412821  Trifolium albopurpureum R. R. Halse 2002-3-26 6148 San Benito Along State Highway 25, 12.7 miles north of its junction with State Highway 198 300 Comment
  RSA669474  Trifolium depauperatum Richard R. Halse 2001-3-28 5975 Butte Along State Hwy 99, 2.3 miles south of its junction with State Hwy 149, near Gold Creek. 40 Comment
  CAS-BOT-BC226266  Trifolium depauperatum var. depauperatum Richard R. Halse 2002-3-27 6155 Butte At the junction of State Hwy. 99 and Hamilton Nord Cana Hwy. ca. 8 miles NW of Chico 40 Comment
  CHSC85592  Trifolium depauperatum var. depauperatum Richard R. Halse 2002-3-27 6155 Butte At the junction of State Hwy. 99 and Hamilton Nord Cana Hwy. ca. 8 miles NW of Chico. 40 Comment
  SEINET7413724  Trifolium depauperatum var. depauperatum R. R. Halse 2002-3-27 6155 Butte At the junction of State Hwy. 99 and Hamilton Nord Cana Hwy. Ca. 8 miles NW of Chico. 40 Comment
  CHSC114045  Trifolium hirtum Richard R. Halse 2012-3-26 8432 San Luis Obispo Along StatHwy 1, ca 1.8 miles north of San Simeon. 21 Comment
  CHSC118624  Trifolium hirtum Richard R. Halse 2016-5-29 9716 Siskiyou Along Hilt Road ca. 2.1 miles northwest of Hilt on the Oregon/California State Line. 876 Comment
  RSA730873  Trifolium hirtum Richard R. Halse 2007-3-25 7132 Lake Along State Hwy. 20 ca. 1.3 miles W of Upper Lake just past junction with State Hwy. 29. 406 Comment
  CHSC85596  Trifolium willdenovii Richard R. Halse 2002-3-26 6147 San Benito Along State Hwy. 25, 12.7 miles N of its junction with State Hwy. 198. 304 Comment
  RSA724144  Trifolium willdenovii Richard R. Halse 2002-3-26 6147 San Benito Along State Hwy 25, 12.7 miles N of its junction with State Hwy 198. 304 Comment
  SEINET7373721  Trifolium willdenovii R. R. Halse 2002-3-26 6147 San Benito Along Atate Highway 25, 12.7 miles north of its junction with State highway 198 300 Comment
  CAS-BOT-BC451916  Triglochin maritima S. D. Halsey 1908-11-30 s.n. Santa Clara Palo Alto. Comment
  GH403193  Triphysaria eriantha R. R. Halse 2011-3-25 8162 Unknown Along State Hwy. 20 ca. 8.4 miles southeast of its junction with U.S. Hwy 101 Comment
  SEINET255534  Triphysaria eriantha Richard R. Halse 2007-3-23 7116 Tuolumne Along State Hwy. 49 ca. .7 miles north of Chinese Camp. 385 Comment
  CHSC118618  Triphysaria eriantha subsp. eriantha Richard R. Halse 2016-3-24 9683 Humboldt Along U.S. Hwy. 101 ca. 9.5 miles south of Garberville, just north fo the Mendocino County Line. 168 Comment
  SEINET13748734  Triphysaria eriantha subsp. eriantha R. R. Halse 2001-5-28 5974 Butte Along State Hwy. 99, 2.3 miles south of its junction with State Hwy. 149, near Gold Creek 40 Comment
  SEINET13761905  Triphysaria eriantha subsp. eriantha R. R. Halse 2016-1 9683 Humboldt Along U.S. Hwy 101 ca., 9.5 mi S of Garberville, just N of the Mendocino County Line. 168 Comment
  CHSC114055  Triphysaria eriantha subsp. rosea Richard R. Halse 2012-3-26 8426 San Luis Obispo Along State Hwy. 1, ca. 2.7 miles north of San Simeon, , just south of the turnoff to the Hearst Castle; ca. 6 miles north of Cambria. 10 Comment
  SEINET13750554  Triphysaria eriantha subsp. rosea R. R. Halse 2012-3-26 8426 San Luis Obispo Along State Hwy. 1, ca. 2.7 miles N of San Simeon, just S of the turnoff to the Hearst Castle; ca. 6 miles N of Cambria 10 Comment
  UC2029546  Triphysaria eriantha subsp. rosea Richard R. Halse 2012-3-26 8426 San Luis Obispo Along State Highway 1, ca. 2.7 miles north of San Simeon, just south of the turnoff to the Hearst Castle; ca. 6 miles north of Cambria Comment
  GH403192  Triphysaria pusilla R. R. Halse 2011-3-25 8161 Unknown Along State Hwy. 20 ca. 8.4 miles southeast of its junction with U.S. Hwy 101 Comment
  CAS-BOT-BC361304  Triteleia laxa Richard R. Halse 2013-3-26 8737 Colusa Along the Leesville Road ca. 4.6 miles NW of its junction with State Hwy 20, west of Williams. 157 Comment
  CHSC114064  Triteleia laxa Richard R. Halse 2012-3-26 8737 Colusa Along the Leesville Road ca 4.6 miles northwest of its junction with State Hwy 20, west of Williams. 157 Comment
  GH404296  Triteleia laxa R. R. Halse 2013-3-26 8737 Unknown Along the Leesville Road ca. 4.6 miles northwest of its junction with State Hwy. 20, west of Williams Comment
  SEINET5585730  Triteleia laxa Richard R. Halse 2013-1 8737 Colusa Along the Leesville Road ca. 4.6 miles northwest of its junction with State Hwy. 20, west of Williams. Comment
  RSA523190  Triteleia laxa R. R. Halse 1989-5-7 3825 Colusa Along the Leesville Road, 3 miles southeast of Leesville, just below the summit of the pass on the east side 480 Comment
  SEINET3889052  Triteleia laxa Richard R. Halse 1989-5-7 3825 Colusa Along the Leesville Road, 3 miles southeast of Leesville, just below the summit of the pass on the east side.; 0 480 Comment
  SEINET8506452  Triteleia laxa R. R. Halse 1989-5-7 3825 Colusa Along the Leesville Road, 3 miles SE of Leesville, just below the summit of the pass on the E side. 480 Comment
  CHSC96354  Triticum aestivum Richard R. Halse 2006-8-3 6991 Lassen Modoc National Forest, along Blue Lake Road north of Blue Lake, ca. 15 miles ESE of Likely. 1860 Comment
  RSA722571  Triticum aestivum R. R. Halse 2006-8-3 6991 Lassen Modoc National Forest; along Blue Lake Road north of Blue Lake, ca. 15 miles ESE of Likely. 1860 Comment
  SEINET3125312 Image available Triticum aestivum Richard R. Halse 2006-1 6991 Lassen Modoc National Forest, along Blue Lake Road north of Blue Lake, about 15 miles ESE of Likely. 1860 Comment
  SEINET5424376  Triticum aestivum R. R. Halse 2006-8-3 6991 Lassen Modoc National Forest, along Blue Lake Road north of Blue Lake, ca. 15 miles ESE of Likely, in a clear cut area above Parsnip Creek. 1860 Comment
  GH395172  Tropaeolum majus R. R. Halse 2015-3-23 9354 Unknown Along State Hwy. 1 ca. 0.7 miles north of San Simeon at a vista point off the highway Comment
  UC2047449  Tropaeolum majus Richard R. Halse 2015-3-23 9354 San Luis Obispo Along State Highway 1 ca. 0.7 miles north of San Simeon at a vista point off the Highway. Comment
  SEINET3368642 Image available Umbellularia californica Richard R. Halse 2012-3-30 8463 Del Norte Along Hwy 199 ca 12 mi;es south of Oregon State line, 17.2 miles SW of O'Brien, OR 350 Comment
  SEINET6646372  Umbellularia californica R. R. Halse 2012-3-30 8463 Del Norte Along Hwy. 199 ca. 12 mies south of Oregon State Line or 17.2 miles SW of O'Brien, Oregon 350 Comment
  SEINET6646371  Umbellularia californica R. R. Halse 1987-2-22 3378 Lake Along State Hwy. 29, 0.4 mi N of the Lake/Napa county line, about 6 mi S of Middletown; T 10N, R 7W, Sec. 25 444 Comment
  CDA43202  Urtica urens Richard R. Halse 2015-3-25 9373 Stanislaus Patterson; by the intersection of Speno Drive and Annamarie Ave. Comment
  CHSC113819  Urtica urens Richard R. Halse 2011-3-22 8151 Santa Barbara Along State Hwy. 1 ca. 2.5 miles south of Guadalupe. 41 Comment
  GH395166  Urtica urens R. R. Halse 2015-3-25 9373 Unknown Patterson; by the intersection of Speno Drive and Annamarie Ave. Comment
  SEINET15325501 Image available Urtica urens Richard R. Halse 2015-1 9373 Stanislaus Patterson; by the intersection of Speno Drive and Annamarie Ave. 55 Comment
  SEINET6766983  Urtica urens R. R. Halse 2011-3-22 8151 Santa Barbara Along State Hwy. 1 ca. 2.5 mies south of Guadalupe 41 Comment
  SEINET7106805  Urtica urens Richard R. Halse 2011-3-22 8151 Santa Barbara Along State Hwy. 1 ca 2.5 miles south of Guadalupe.; 0 41 Comment
  SEINET8753951 Image available Urtica urens Richard R. Halse 2015-1 9373 Stanislaus Patterson; by the intersection of Speno Drive and Annamarie Ave. 55 Comment
  UC1982469  Urtica urens Richard R. Halse 2011-3-22 8151 Santa Barbara Along State Highway 1 ca. 2.5 miles south of Guadalupe. Comment
  GH395165  Vaccinium ovatum R. R. Halse 2015-3-26 9380 Unknown Along U. S. Hwy. 101 ca. 2.4 miles southeast of Weott Comment
  GH395173  Vicia benghalensis R. R. Halse 2015-3-24 9369 Unknown San Simeon, just north of the Motel 6 at 9070 Castillo Drive Comment
  UC2047398  Vicia benghalensis Richard R. Halse 2015-3-24 9369 San Luis Obispo San Simeon, just north of the Motel 6 at 9070 Castillo Drive. Comment
  CHSC114051  Vicia gigantea Richard R. Halse 2012-3-27 8440 San Luis Obispo Along State Hwy 1, ca 1.4 miles south of Ragged Point, near the spot wehre the Hwy crosses over San Carpofor Creek. 21 Comment
  SEINET7368158  Vicia sativa R. R. Halse 1988-2-21 3548 Solano Vallejo, in a weedy area long Maritime Academy Drive, near its junction with Sonoma Blvd. 36 Comment
  CHSC92262  Vicia sativa subsp. nigra Richard R. Halse 1988-2-21 3548 Solano Vallejo, in a vacant lot along Maritime Academy Drive near its junction with Sonoma Blvd. 36 Comment
  RSA723712  Viola douglasii Richard R. Halse 1974-3-14 958 Glenn Between Elk Creek and Black Butte Lake. 259 Comment
  SEINET9251898  Viola lobata subsp. lobata R. R. Halse 1977-5-22 1551 Plumas Along State HWY 89, 5.8 miles north of Quincy 960 Comment
  SEINET3871816  Viola purpurea Richard R. Halse 2010-3-24 7845 Santa Clara Along State Hwy. 152 ca 3.7 miles west of the Merced County Line or 16.1 miles west of the junction of Hwy. 152.; 0 195 Comment
  CHSC113820  Viola purpurea subsp. quercetorum Richard R. Halse 2010-3-24 7845 Santa Clara Along State Hwy. 152 ca. 3.7 miles west of the Merced County Line or 16.1 miles west of the junction of Hwy. 152 and State Hwy. 33. 195 Comment
  GH403180  Viola purpurea subsp. quercetorum R. R. Halse 2010-3-24 7845 Unknown Along State Hwy. 152 ca. 3.7 miles west of the Merced County Line or 16.1 miles west of the junction of Hwy. 152 and State Hwy. 33 Comment
  SEINET11154243  Viola quercetorum R. R. Halse 2010-3-24 7845 Santa Clara Along State Hwy. 152 ca 3.7 miles west of the Merced County Line or 16.1 miles west of the junction of Hwy. 152 and State Hwy. 33. 195 Comment
  RSA783321  Vulpia myuros R. R. Halse 2011-3-20 8133 Colusa Williams. By junction of 5th Street and B Street. 25 Comment
  SEINET3873246  Vulpia myuros Richard R. Halse 2011-3-20 8133 Colusa Williams; by junction of 5th Street and B Street; weedy vacant lot.; 0 25 Comment
  SEINET5428845  Vulpia myuros R. Halse 2011-3-20 8133 Colusa Williams, by junction of 5th St. and B St. 25 Comment
  UCD143816  Vulpia myuros Richard R. Halse 2011-3-20 8133 Lassen Williams; by junction of 5th Street and B street. 24 Comment



  Copyright © 2019 Regents of the University of California — Updated 11 January 2019
0.10 processing seconds