ARIZ
412997 George K. Helmkamp 18480 2011-11-28
United States, California, Placer, Sacramento Valley/Sierra Nevada Foothills: along CA-193 (Lincon Newcastle Hwy). 2.0 miles east of East Street in Lincoln, near Stagecoach ln. (Gold Hill 7.5'), 38.886667 -121.247778, 125m
ARIZ
J. Olami s.n. 1933-10-24
Palestine, Upper Jordan Valley, Naharaim, near the pool.
ARIZ
418396 Jon Rebman 27035 2013-10-01
Mexico, Baja California, Tijuana, Tijuana metro area: along Alamar Creek: ca. 4 miles east of Tijuana Airport & 0.25 miles south of the Tijuana/Tecate Highway (2D); approx. 1.5 miles southwest of the Tijuana/Tecate toll plaza, 32.5383 -116.877, 85m
ARIZ
405149 Phillip roulard 159 2007-10-26
United States, California, San Diego County, Otay Mesa, Borderfield State Park, Goat Canyon, about 550 yards S of Monument Road and 3/4 mi SW of intersection with Saturn Blvd, near sedimentation basin., 32.5389 -117.1034, 17m
UCR
UCR0272338 Cindy Burrascano s.n. 2003-09-30
United States, California, San Diego, Torrey Pines State park, off Estuary Way, road graded last year for City of SD maintenance of the main drainage channel behind Roselle Street, 32.90722 -117.23139, 100m
UCR
UCR0272341 R.E. Riefner, Jr. 11--134 2011-09-13
United States, California, San Diego, Department of Parks and Recreation, San Onofre State Beach, immediately east from the end of La Plata Road, 33.44644 -117.57911, 117m
UCR
UCR0272336 Jon P. Rebman 35946 2019-06-06
United States, California, San Diego, Camp Pendleton, southern portion of base; along a wet ditch on the southwest side of the new hospital; between Vandergrift Blvd. and Wire Mountain Road. Grid Square G5, 33.21992 -117.38914, 34m
UCR
UCR0138057 George K. Helmkamp 11567 2006-10-23
United States, California, Amador, along Calif. Hwy 16, 0.2 mile east of Waits Station, southwest of Plymouth, 38.44972 -120.89361, 305m
UCR
UCR0138069 Joe Gutshall 001 2011-11-03
United States, California, San Luis Obispo, 75 yards before the gate to Poly Canyon Road on the right embankment, 35.31339 -120.65189
UCR
UCR0212167 George K. Helmkamp 20137 2012-11-12
United States, California, El Dorado, El Dorado Hills; Windfield Parkway 0.2 mile south of White Rock Road, 38.64222 -121.07083, 175m
UCR
UCR0212175 J. Gonvi PDR-072058 2000-10-26
United States, California, Alameda, Along railroad right-of-way in the vicinity of Pleasanton, 37.63389 -121.88611
UCR
UCR0272339 Phillip Roullard 159 2007-10-26
United States, California, San Diego, Otay Mesa, Border Field State Park, Goat Canyon c. 550 yards south of Monument Road and 0.75 mi southwest of the intersection with Saturn Blvd, near sedimentation basin. Square W10, 32.53889 -117.10339, 17m
UCR
UCR0212192 John Beall s.n. 2001-09-27
United States, California, Santa Clara, Milpitas, overflow channel of Coyote Creek, 1/2 mile south of Dixon Landing Rd., 37.4125 -121.92361, 3m
UCR
UCR0212187 George K. Helmkamp 18427 2011-10-15
United States, California, San Joaquin, along CA-26, 0.6 mile northeast of Escalon-Bellota Rd., 38.05889 -121.00917, 40m
UCR
UCR0138064 Robert E. Preston 1943 2002-08-01
United States, California, Marin, Novato, former Hamilton Army Air Field, along Todd Road, 38.06222 -122.52139, 8m
UCR
UCR0138059 Tina Carlsen s.n. 1996-10-09
United States, California, Contra Costa, Livermore, east side of Greenville Rd, c. 0.5 mi south of I-580, 37.71056 -121.69889, 183m
UCR
UCR0272337 Jon P. Rebman 27736 2014-02-25
United States, California, San Diego, Camp Pendleton, southwest portion of base, Training Area SMR 1, along the Santa Margarita River just south of El Camino Real & north of the west end of the airstrip on Vandergrift Blvd, along a dirt road just north of the river. Atlas Square: F5, 33.29319 -117.37311, 15m
UCR
UCR0179524 E.N. Anderson s.n. 2023-10-01
United States, California, Riverside, Riverside, Sycamore Canyon Park, along E-W maintenance road in southern part of park where it crosses headwaters of Sycamore Canyon Arroyo, near South Arroyo Trail, 33.925 -117.30806, 442m
UCR
UCR0138061 Angelique Herman s.n. 2016-11-15
United States, California, Fresno, W Shaw Ave. and Hwy 99, Fresno, 36.80853 -119.88089, 91m
UCR
UCR0138067 George K. Helmkamp 18480 2011-11-28
United States, California, Placer, along CA-193 (Lincoln-Newcastle Hwy), 2.0 miles east of East Street in Lincoln, near Stagecoach Ln., 38.88667 -121.24778, 125m
UCR
UCR0138063 Mitch Provance 818--11 2018-08-03
United States, California, Los Angeles, Lake Los Angeles, Lovejoy Springs, N side of E Ave P, adjacent to the N side of Stephen Sorensen Park, 34.60581 -117.83031, 820m
UCR
UCR0138058 George K. Helmkamp 18479 2011-11-21
United States, California, Calaveras, along CA-12 at the west end of the city of Burson, 38.18306 -120.89944, 125m
UCR
UCR0272343 Cal Dept Fish & Game 501 2003-07-21
United States, California, San Diego, Torrey Pines State Reserve, 32.90888 -117.2326, 7m
UCR
UCR0212172 George K. Helmkamp 22424 2013-10-15
United States, California, El Dorado, Oak Hill Road, 3.6 miles south of its junction with Pleasant Valley Road, 38.63417 -120.79028, 614m
UCR
UCR0212189 George K. Helmkamp 18473 2011-11-21
United States, California, San Joaquin, Collier Road, 0.4 mile west of its junction with CA-88, 1.7 mi. NE (18°) of Clements, 38.21389 -121.07806, 37m
UCR
UCR0212170 George K. Helmkamp 18452 2011-11-12
United States, California, El Dorado, 2.0 miles west of Latrobe on South Shingle Road, 38.55333 -121.00833, 168m
UCR
UCR0138056 George K. Helmkamp 13099 2007-10-13
United States, California, Amador, along CA-124, 0.3 mile north of its junction with CA-88 and south of Ione, 38.3225 -120.93611, 87m
UCR
UCR0272344 R.E. Riefner, Jr. 12--516 2012-10-10
United States, California, San Diego, city of San Diego, community of Serra Mesa, Ruffin Canyon Open Space, south of Gramercy Drive, and immediately west of Taft Middle School, 32.80196 -117.13313, 92m
UCR
UCR0138065 George K. Helmkamp 22396 2013-10-10
United States, California, Nevada, Along CA-49, c. 0.3 mile north of the junction with Gautier Road and at the side road #20456, 39.02583 -121.09944, 441m
UCR
UCR0212190 John Beall s.n. 2000-10-14
United States, California, Santa Clara, overflow channel east of Coyote Creek, 25 yards west of Milpitas Sewage Treatment Plant; San Francisco Bay Region, 37.44833 -121.92306, 2m
UCR
UCR0212191 O.F. Clarke s.n. 2008-09-29
United States, California, Santa Clara, cabinet shop at 1111 Auzerais Ave, San Jose, near corner with Lincoln Ave., 37.32111 -121.90917, 35m
UCR
UCR0138060 Dean Kelch 05.489 2005-11-03
United States, California, Contra Costa, entrance to Mt. Wanda, 37.98972 -122.12861, 37m
UCR
UCR0212174 D. Petersen s.n. 2001-11-11
United States, California, Alameda, Arroyo de la Laguna at Nerona [Verona?] Bridge (Pleasanton), 37.62667 -121.8825
UCR
UCR0212193 Tom Schweich 909 2012-10-03
United States, California, Alameda, Mount Trashmore, Alameda; beside a bicycle path connecting the intersection of Doolittle Drive and Island Way to the intersection of the Veterans Way bicycle path and the Bay Farm bicycle bridge, 37.74761 -122.23569, 6m
UCR
UCR0272342 Robert Noll s.n. 2010-11-10
United States, California, San Diego, Border Fields State Park, north of the road to Tijuana Bull Ring and c. 100 m from Mexican border fence, 32.53611 -117.12083, 1m
UCR
UCR0138070 A.C. Sanders 37232 2009-12-16
United States, California, Stanislaus, roadside rest on west side of Hwy I-5, S of Tracy and c. 4 mi. NW of Westley, 37.58173 -121.32387, 102m
UCR
UCR0138055 Lee Jones s.n. 2010-11-19
United States, California, Riverside, Beaumont, San Timoteo Canyon Rd. at entrance to golf course maintenance bldg, c. 1.8 mi. west of intersection with I-10, 33.94333 -117.03556, 701m
UCR
UCR0138054 Mitch Provance 618--01 2018-06-12
United States, California, Riverside, City of Lake Elsinore, undeveloped area S of Birch St. and N of Temescal (Alberhill) Creek, 33.68361 -117.33931, 386m
UCR
UCR0212173 George K. Helmkamp 19947 2012-10-01
United States, California, El Dorado, Southeast end of El Dorado Hills; Windfield Way just south of its junction with White Rock Road, 38.64361 -121.07083, 168m
UCR
UCR0272340 Cindy Burrascano s.n. 2003-10-21
United States, California, San Diego, Carroll Canyon c. 1 mile west of Camino Ruiz, Mira Mesa, 32.89167 -117.1625, 152m
UCR
UCR0138066 Fred M. Roberts 8623 2018-08-23
United States, California, Orange, San Clement. Adjacent to railroad tracks between San Clement State Beach and parking area along Boca de la Playa Road across street from Ole Hansen Beach club, 33.43167 -117.6325, 6m
UCR
UCR0212168 George K. Helmkamp 18466 2011-11-20
United States, California, El Dorado, Salmon Falls Road, 1.6 miles south of the bridge of the American River, 38.75806 -121.04528, 180m
UCR
UCR0138068 George K. Helmkamp 18464 2011-11-19
United States, California, Sacramento, Stonehouse Road 0.2 mile north of its junction with CA-16/Jackson Rd, between the road and Rancho Murieta Housing area, 38.50056 -121.10139, 44m
UCR
UCR0212169 George K. Helmkamp 22449 2013-10-18
United States, California, El Dorado, junction of Sand Ridge Road and CA-49, north of Plymouth, 38.59028 -120.84611, 268m
UCR
UCR0138071 George K. Helmkamp 18449 2011-10-15
United States, California, Stanislaus, along J-4 (Milton Rd.), 1.7 miles south of its junction with CA-4, 12 mi. NE (44°) of Escalon, 37.92194 -120.84389, 64m
UCR
UCR0138062 Catherine Koehler s.n. 2012-10-08
United States, California, Lake, McLaughlin UC Reserve, 0.39 miles SSE along Morgan Valley Rd. from main gate to Field Station at reserve; 0.83 miles SSE along Morgan Valley Rd. from intersection of Reiff Road and Morgan Valley Rd., 38.86674 -122.41526, 648m
UCR
UCR0202161 Barbara Ertter 17540 2000-10-08
United States, California, Alameda, Merritt College in Oakland Hills, 37.78778 -122.16667, 30m
UCR
UCR0212188 George K. Helmkamp 20062 2012-10-26
United States, California, San Joaquin, along Hwy CA-26, 0.7 mile northeast of Bellota, 38.06111 -121.00722, 50m
UCR
UCR0179535 Ann Howald 2378 2003-09-04
United States, California, Alameda, San Ramon Valley, Parks Reserve Forces Training Area, c. 2.5 miles east of Dublin, 37.7125 -121.89583, 106m
UCR
UCR0212186 G. Fred Hrusa 16137 2003-10-10
United States, California, San Joaquin, Casson Rd, +/- 0.25mi east of intersection with Durham Ferry Rd, 37.67217 -121.27186, 23m
UCR
UCR0212171 George K. Helmkamp 15714 2009-10-30
United States, California, El Dorado, Country Club Drive 0.1 mile east of its junction with Bass Lake Road, between El Dorado Hills and Cameron Park, 38.65583 -121.02528, 343m
UCR
UCR0138072 Arthur M. Shapiro s.n. 2003-12-03
United States, California, Yolo, UC Davis campus, c. 20 m NW of the Recreation Pool Lodge, 38.71306 -121.76833, 13m
USU:UTC
UTC00267303 George K. Helmkamp 18473 2011-11-21
United States, California, San Joaquin, Collier Road, 0.4 mile west of its junction with CA-88, 1.7 mi NE (18 degrees) of Clements (Clements 7.5' Q), 38.125 -121.0441, 37m
NY
2924419 H. N. Moldenke 20555 1949-09-21
United States of America, New York, Bronx Co., Pelham Bay Park, 40.869907 -73.802933
NY
2924418 K. Anderson s.n. 1987-10-06
United States of America, New Jersey, Hudson Co., Along edge of landfill, by Freedom Way, Liberty State Park
NY
04229147 D. E. Atha 16047 2018-10-13
United States of America, New York, Richmond Co., Staten Island. Floodplain of Mill Creek, west of Arthur Kill Rd and east of the Arthur Kill, between Richmond Valley Rd and Bethel Ave, 40.520567 -74.240185, 2m
NY
2924417 J. V. Monachino 529 1949-09-21
United States of America, New York, Bronx Co., in road under construction east of the Zoological Garden from Fordham Road (Pelham Parkway) south to about 180th St.
NY
2924416 H. N. Moldenke 20555 1949-09-21
United States of America, New York, Bronx Co., Pelham Bay Parkway
NY
1747815 G. K. Helmkamp 18473 2011-11-21
United States of America, California, San Joaquin Co., Northeastern San Joaquin Valley: COllier Road, 0.4 mile west of its junction with CA-88, 1.7 mi NE (18°) of Clements, 38.2139 -121.0781, 37m
BRY:V
BRYV0167328 Catherine Koehler 2012-10-08
U.S.A., California, Lake, McLaughlin UC Reserve, 0.39 miles SSE along Morgan Valley Road from main gate to Field Station at reserve; 0.83 miles SSE along Morgan Valley Road from intersection of Reiff Road and Morgan Valley Road., 38.86674 -122.41442, 648m
BRY:V
BRYV0165511 George Helmkamp 22424 2013-10-15
U.S.A., California, El Dorado, Sierra Nevada Mountains Foothills: Oak Hill Road, 3.6 miles south of its junction with Pleasant Valley Road (Placerville 7.5Õ)., 38.63416 -120.79027, 614m
BRY:V
BRYV0258074 C. Simon s.n. 1957-08-18
Germany, Salzboden. Haut Rhin. Wittelsheim. Saline Amlie., 260m
BRY:V
BRYV0258055 Jerry B. Anderson 1458 1973-05-14
Australia, Victoria, Niddrie, suburb of Melbourne.
DBG:KHD
KHD00033915 K. R. Jausson 1934-09-23
SDSU
SDSU20006 Michael G. Simpson 3655 2012-01-29
United States, California, San Diego, Mission Trails Regional Park, Lake Murray. Adjacent to (on north side) asphalt road encircling lake, ca. 260 meters due west of Baltimore Drive., 32.78775 -117.03863, 167m
SDSU
SDSU17627 Sweet, Melvin M. 209 2005-09-22
United States, California, San Diego, City of San Diego (La Jolla). On canyon slopes surrounding business at 4320 Westerra Court; 0.5 mi NNW of inters. of Genesee Ave and Eastgate Mall, btwn I-5 and I-805., 32.8838 -117.2159, 104m
USCH:MAIN
Henke, J. 2001-10-29
United States, California, Alameda County, Alameda
USCH:MAIN
Shapiro, A. 2003-12-03
United States, California, Yolo County, Yolo
USCH:HWR
HWR-0001019 Ravenel, H.
United States, Kentucky, Kentucky, 34.2098303 -83.1745942
USCH:MAIN
Preston, Robert 1959 2002-10-22
United States, California, Contra Costa County, Contra Costa, 37.8686111 -122.2005556
MO
100615634 Anonymous s.n. 1829-10-00
Europe
RENO:V
60238 D.W. Taylor 21609 2015-10-23
USA, California, Santa Cruz, De LaVeiga County Park and Golf Course (situated on marine terrace ca 2 miles N of downtown Santa Cruz), along the access road to the County Armory., 36.99387 -122.0058, 70m
DAV
DAV375886 A. M. Shapiro s.n. 2003-10-13
United States, California, Placer, Placer County: Colfax, along railroad tracks near downtown., 39.09627 -120.95423, 671m
DAV
DAV375889 A. M. Shapiro s.n. 2003-12-03
United States, California, Yolo, Yolo County: U.C. Davis campus, about 20 meters northwest of the Rec Pool Lodge., 38.54 -121.761
DAV
DAV375867 Chuck Hughes 135 2009-10-02
United States, California, Contra Costa, Contra Costa County: Marsh Creek at County Jail on Marsh Creek Road., 37.89 -121.86, 181m
DAV
DAV375895 Lowell Ahart 17302 2010-10-05
United States, California, Plumas, Plumas County: On the north side of Highway 70, Serpentine Canyon, 2.7 miles (air) east-northeast of Rich Bar, 3.9 miles (air) wesr of Twain., 40.024166666499 -121.146388888856, 814m
DAV
DAV375884 D. S. Park 269 2010-12-07
United States, California, Alameda, Alameda County: Pleasanton. Growing off Sunol Rd and Verona Rd., 37.626111 -121.880556, 13m
DAV
DAV375892 Lowell Ahart 16503 2009-10-27
United States, California, Napa, Napa County: Along all the sides of the roads at the intersection of Pope Canyon Road and Berryessa Knoxville Road, near Lake Berryessa, about 20 miles, about 20 miles(air) west of Winters., 38.6180555555892 -122.289166666692, 152m
DAV
DAV375882 A. M. Shapiro s.n. 2005-10-05
United States, California, Placer, Placer Co.: Colfax., 39.10138 -120.94368, 683m
DAV
DAV375888 Stephen Winter 1455 2005-10-13
United States, California, Stanislaus, Stanislaus Co.: San Joaquin National Wildlife Refuge; between a ditch and the north-facing slope of a levee that is accessed by the gate at the junction of Orchard Road and Pelican Road; approx. 0.4 km east of the gate., 37.627222 -121.202222
DAV
DAV375887 Stephen Winter 1454 2005-10-13
United States, California, Stanislaus, Stanislaus Co.: San Joaquin National Wildlife Refuge; Lara tract; east of the West Stanislaus Irrigation District pumping station., 37.583611 -121.191667
DAV
DAV375896 A. M. Shapiro s.n. 2004-11-01
United States, California, Placer, Placer County: Colfax, construction site opposite 148 Whitcomb St., 39.10079 -120.952
DAV
DAV375898 A. M. Shapiro s.n. 2004-11-01
United States, California, Placer, Placer County: Rocklin, Taylor Rd. at Stonehouse Court., 38.77087 -121.2519
DAV
DAV375894 Robert E. Preston 1776 2001-09-29
United States, California, San Joaquin, Ca. 3.8 mi sw of Vernalis, at jct I-5 and I-580, along shoulder. Solyo 6.5' quad., 37.595556 -121.733611, 158m
DAV
DAV375868 Glen Holstein s.n. 1996-09-01
United States, California, Alameda, Alameda County: city of Fremont, north of Coyote Creek (Wann Springs District)., 37.48722 -121.92718
DAV
DAV375866 Robert E. Preston 2368 2005-11-09
United States, California, Placer, Placer County: Between Roseville and Lincoln, at jct Sunset Blvd and Placer Corp Dr., 38.817222 -121.303889, 41m
DAV
DAV375870 Robert E. Preston 2178 2003-09-18
United States, California, Sacramento, Sacramento County: McClellan Air Park, along E side of Patrol Rd, N of Magpie Creek, 38.655556 -121.414722, 17m
DAV
DAV375877 Robert E. Preston 1167 1998-09-26
United States, California, Solano, Solano County: Benicia Industrial Park, along Bayshore Rd between Benicia Bridge and Industrial Park Rd, 38.055833 -122.128333, 15m
DAV
DAV375879 Robert E. Preston 1052 1997-10-10
United States, California, Alameda, Alameda County: Camp Parks, 37.708333 -121.905, 101m
DAV
DAV375876 Robert E. Preston 1199 1998-10-25
United States, California, Santa Clara, Santa Clara County: Mountain View, Shoreline Regional Park, along Stevens Creek, 37.425 -122.075, 2m
DAV
DAV375885 Catherine Koehler s.n. 2012-10-08
United States, California, Lake, Lake County: McLaughlin UC Reserve. 0.39 miles SSE along Morgan Valley Road from main gate to Field Station at reserve; 0.83 miles SSE along Morgan Valley Road from intersection of Reiff Road and Morgan Valley Road., 38.866744 -122.415256, 648m
DAV
DAV375861 Robert E. Preston 1804 2002-05-17
United States, California, Alameda, Alameda County: Fremont, Warm Springs District, in the railroad right-of-way, ca. 0.65 mi n of Mission Blvd, 37.495833 -121.935, 18m
DAV
Robert E. Preston 1776 2001-09-29
United States, California, San Joaquin, San Joaquin County: Ca. 3.8 mi sw of Vernalis, at jct I-5 and I-580, along shoulder, 37.595556 -121.733611, 158m
DAV
DAV375878 Robert E. Preston 1075 1997-12-10
United States, California, Merced, Merced County: Chowchilla, along Avenue 24, between Chowchilla Blvd and Hwy 99., 37.098333 -120.2225, 75m
DAV
DAV375862 Robert E. Preston 1252 1999-11-09
United States, California, Sonoma, Sonoma County: Windsor, on NW corner of jct Old Redwood Hwy and Arata Lane. T8N R9W N edge of Sec 11, 38.561858 -122.824405, 40m
DAV
DAV375864 Robert E. Preston 1943 2002-08-01
United States, California, Marin, Marin County: Novato, former Hamilton Army Air Field, along Todd Rd, 38.062222 -122.521389, 8m
DAV
DAV375863 Robert E. Preston 1446 2000-10-20
United States, California, Solano, Solano County: Vacaville, along I-505 between I-80 and Vaca Valley Parkway, 38.390556 -121.950556, 30m
DAV
DAV375880 Robert E. Preston 1050 1997-09-23
United States, California, San Joaquin, San Joaquin County: Lawrence Livermore Laboratory, Site 300, along Route 2, 37.634722 -121.502222, 198m
DAV
DAV375881 R. E. Riefner, Jr. 11--134 2011-09-13
United States, California, San Diego, San Diego County: Department of Parks and Recreation, San Onofre State Beach, located immediately east from the end of La Pata Road., 33.4463888888558 -117.578888888719, 117m
DAV
DAV375865 Robert E. Preston 2303 2004-10-06
United States, California, Sacramento, Sacramento County: Fair Oaks, at CSUS Aquatic Center, jct Hazel Ave and Gold Country Blvd., 38.633889 -121.220833, 40m