Search Results — 317 specimen records retrieved (310 records with coordinates)
Results for search: County=SAN DIEGO; Scientific name=Ambrosia psilostachya (including nomenclatural synonyms); Source=All;   More information: Jepson Online Interchange

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC55554  Ambrosia psilostachya R. K. Brummitt; N. A. Brummitt 1999-8-8 s.n. San Diego Near N end of Cuyamaca Lake beside Sunrise Hwy. (S1) 1500 Comment
  CAS-BOT-BC55555  Ambrosia psilostachya A. C. Sanders; Kerry Knudsen; J. R. Ekhoff 2004-7-9 28475 San Diego Peninsular Range: 793 Comment
  CAS-BOT-BC55556  Ambrosia psilostachya George Park 1912-8-12 119 San Diego Cleveland Forest 487 Comment
  CAS-BOT-BC55557  Ambrosia psilostachya Ira L. Wiggins 1927-8-29 2605 San Diego Along Hatfield Creek 4 miles east of Ramona on highway to Santa Ysabel Comment
  CAS-BOT-BC55558  Ambrosia psilostachya Ira L. Wiggins 1926-10-16 2111 San Diego Near old mine 4 mi. from Julian on road to Cuyamaca Comment
  CAS-BOT-BC55559  Ambrosia psilostachya G. R. Kleeberger 1878-10-13 s.n. San Diego San Diego0 Comment
  CAS-BOT-BC55560  Ambrosia psilostachya Ira L. Wiggins 1926-10-16 2111 San Diego Near old mine 4 miles from Julian on road to Cuyamaca Comment
  CAS-BOT-BC55561  Ambrosia psilostachya Ira L. Wiggins 1927-8-30 2670 San Diego On west side of North Peak Comment
  CAS-BOT-BC55562  Ambrosia psilostachya Ira L. Wiggins 1927-8-30 2670 San Diego On west side of North Peak Comment
  CAS-BOT-BC55563  Ambrosia psilostachya H. H. van der Werff 1980-8-10 4120 San Diego Corte Madera Ranch, Pine Valley 1200 Comment
  CAS-BOT-BC55564  Ambrosia psilostachya Wro 1286 San Diego S. of Batiquitos Lagoon Comment
  CAS-BOT-BC55565  Ambrosia psilostachya Roxana S. Ferris 1956-9-15 13064 San Diego Sweetwater River, ca. 2 mi. above Bonita Comment
  CAS-BOT-BC55566  Ambrosia psilostachya Roxana S. Ferris 1956-9-13 13051 San Diego State Highway 94, 5.8 mi. NW of Dulzura (Jamul Rancho) Comment
  CAS-BOT-BC55567  Ambrosia psilostachya Ira L. Wiggins 1922-12-30 1046 San Diego Between Campo and Potrero Comment
  CDA10056  Ambrosia psilostachya A. C. Browne 1953-10-21 San Diego 10 miles east of Tecate. 0 Comment
  CDA23788  Ambrosia psilostachya Daniel Gluesenkamp 2006-11-23 s.n. San Diego Fallbrook. 1524 Dickey St in abandoned citrus orchard. Comment
  JEPS41032  Ambrosia psilostachya Carl V. Meyer 1928-8-8 San Diego Escondido Comment
  POM48688  Ambrosia psilostachya Mary F. Spencer 1916-8-24 292 San Diego Waysides, Pine Hills. Comment
  RSA0094099  Ambrosia psilostachya Duncan S. Bell, Sarah DeGroot, Amy Rouillard 2015-10-21 8725 San Diego McCain Valley; top end of the valley, about 1.75 air miles north of the Cottonwood Campground. 1335 Comment
  RSA416995  Ambrosia psilostachya F. R. Fosberg 1931-8-17 7310 San Diego Alpine. 600 Comment
  RSA416996  Ambrosia psilostachya F. R. Fosberg 1931-8-17 7364 San Diego Cuyamaca Lake. 1120 Comment
  RSA416997  Ambrosia psilostachya F. R. Fosberg 1930-10-26 S- 4169 San Diego Coches Creek, 2 miles east Bostonia. 200 Comment
  RSA596655  Ambrosia psilostachya Darin L. Banks, Michael Wall 1996-11-12 1235 San Diego NW Palomar Mountains; Agua Tibia Mountains; Cleveland National Forest, E of Agua Tibia Wilderness Area; Eastern Cutca Valley, along the area were the Cutca Trail and Cutca Road meet and crosses the upper drainages of Long Canyon. 1040 Comment
  RSA596656  Ambrosia psilostachya Darin L. Banks, Michael Wall 1996-11-12 1235 San Diego NW Palomar Mountains; Agua Tibia Mountains; Cleveland National Forest, E of Agua Tibia Wilderness Area; Eastern Cutca Valley, along the area were the Cutca Trail and Cutca Road meet and crosses the upper drainages of Long Canyon. 1040 Comment
  RSA643319  Ambrosia psilostachya R. D. Goeden, D. W. Ricker 1969-2-11 s.n. San Diego Coastal Plain: Miramar. Site AP-69-10 137 Comment
  RSA643615  Ambrosia psilostachya Jon P. Rebman, Annette Winner, Oscar Solis 1999-8-10 5987 San Diego North Park area of the city of San Diego; canyon just south of Juniper ST. between 33rd St. and Commonwealth Ave. 140 Comment
  RSA650434  Ambrosia psilostachya Marion P. Harthill 1975-11-8 s.n. San Diego San Luis Rey Cr. 609 Comment
  RSA650435  Ambrosia psilostachya Marion P. Harthill 1975-11-8 s.n. San Diego San Luis Rey Cr. 609 Comment
  RSA651538  Ambrosia psilostachya Marion P. Harthill 1975-11-8 s.n. San Diego San Luis Rey Cr. 609 Comment
  RSA680502  Ambrosia psilostachya Sarah J. De Groot 2001-8-13 147 San Diego Hidden Meadows 92026. Comment
  RSA683308  Ambrosia psilostachya Sarah J. De Groot 2002-6-23 772 San Diego Water road, Cerveza Dr. & Faircrest, Hidden Meadows 92026. Comment
  RSA696742  Ambrosia psilostachya Anonymous 1928-11-11 375 San Diego Warner's Hot Springs. Comment
  RSA699677  Ambrosia psilostachya Keith E. Hoffmaster 1927-6-30 s.n. San Diego San Onofre Comment
  RSA701670  Ambrosia psilostachya Jon P. Rebman, Jeannie Gregory, Jim Rocks 2003-7-15 9353 San Diego Laguna Mountains: Lucky 5 Ranch; southern portion of new acquisition by California State Parks: west side of Sunrise Hwy (S-1) between Cuyamaca Lake and Mount Laguna. 1657 Comment
  RSA704398  Ambrosia psilostachya Jon P. Rebman, J. Gregory, Parabotany team 2004-8-20 10659 San Diego Lake Sutherland: north of Hwy. 78 between Ramona and Santa Ysabel; dry lakebed at southeast end of lake. 605 Comment
  RSA705585  Ambrosia psilostachya Jon P. Rebman, J. Gregory, J. Rocks, J. deWitt 2004-8-10 10612 San Diego Sycuan Peak Ecological Reserve (California Dept. of Fish and Game): southeast of Dehesa, southwest of Loveland Reservoir; on the lower north side of Sycuan Peak, at the end Sloan Canyon Road at the entrance gate to the reserve. 250 Comment
  RSA709472  Ambrosia psilostachya A. C. Sanders, Kerry Knudsen 2004-10-15 28879 San Diego South Coast: San Elijo Lagoon Ecological Reserve (DGF), north end of Santa Helena Dr., 0.5 mi. west of El Camino Real, south of upper end of lagoon. 12 Comment
  RSA710668  Ambrosia psilostachya Larry Hendrickson, Kim Marsden 2003-10-17 201 San Diego Anza-Borrego Desert State Park, SentenacCienega just south of State Highway 78 and east of county road S-2. Comment
  RSA717318  Ambrosia psilostachya A. C. Sanders, Kerry Knudsen 2004-7-2 28451 San Diego Peninsular Range: Boden Canyon, tributary of Santa Ysabel Creek at E end of San Pasqual Valley; around pond in middle DFG parcel. 320 Comment
  SD106664  Ambrosia psilostachya Henk van der Werff 1980-8-10 4120 San Diego Corte Madera Ranch, Pine Valley. 1200 Comment
  SD113188  Ambrosia psilostachya Darley F. Howe 1935-8-4 293 San Diego Otay Valley Comment
  SD11608  Ambrosia psilostachya Frank F. Gander 1935-6-21 222 14 San Diego I(c) mile southwest of Murray Dam in Alvarado Canyon. Comment
  SD118573  Ambrosia psilostachya Duffie Clemons 1985-7-14 1179 San Diego Canyon south of Taft Junior High School. 60 Comment
  SD11939  Ambrosia psilostachya Frank F. Gander 1935-7-10 225 3 San Diego Santa Ysabel Comment
  SD121547 Image available Ambrosia psilostachya Jack L. Reveal 1986-8-22 2861 San Diego Occasional in Transition Zone Grassland, San Dieguito Lagoon near El Camino Real. 4 Comment
  SD12208  Ambrosia psilostachya Frank F. Gander 1935-10-3 254 2 San Diego Lemon Grove Comment
  SD12310  Ambrosia psilostachya Frank F. Gander 1935-10-24 267 7 San Diego Oak Grove Comment
  SD129895  Ambrosia psilostachya Melanie Howe, V. Moran 1988-11-6 44 San Diego Mission Trails Regional Park, Padre Dam Comment
  SD136259  Ambrosia psilostachya Melanie Howe, R. Church 1993-7-21 308 San Diego just east of Crest Canyon, Del Mar (mak 2/06) Comment
  SD136672  Ambrosia psilostachya John W. Brown 1994-1-9 MM 56 San Diego McGinty Mountain; The Mesa, northeast portion of McGinty Mountain. Comment
  SD146373  Ambrosia psilostachya Jon Rebman, Dale Clark and Oscar Solis 1999-9-17 6022 San Diego Mission Hills area of the city of San Diego; in canyon just SW of Mission Hills Park; behind Dale Clark's property at 1849 Lyndon Road 54 Comment
  SD146374  Ambrosia psilostachya Jon Rebman, Annette Winner and Oscar Solis 1999-9-10 5987 San Diego North Park area of the city of San Diego; canyon just south of Juniper St. between 33rd St. and Commonwealth Ave. 139 Comment
  SD153479  Ambrosia psilostachya Jeannie Gregory 2003-6-7 374 San Diego Alpine, west 5 acres of old El Rancho Metate on Tavern Road. 580 Comment
  SD154421  Ambrosia psilostachya Darlene Ward 2003-11-5 8 San Diego Ruffin Canyon bottom in Mission Village, west of Taft Middle School 77 Comment
  SD154422  Ambrosia psilostachya Karen Rich 2003-10-5 114 San Diego East Del Mar, open space along Old El Camino Real, .10 mi. N of intersection with Trento Place. 38 Comment
  SD154423  Ambrosia psilostachya Carrie Schneider, Tim Schauwecker 2003-9-20 8 San Diego East San Diego City, West Switzer Canyon area near the border of North Park and Golden Hill; North of Hwy 94 and East of Interstate 805 60 Comment
  SD154967  Ambrosia psilostachya Judy Gibson 2003-7-25 221 San Diego Descanso, ca I(c) mile north of Hulburd Grove, disturbed area in chaparral (my yard) 1121 Comment
  SD155319  Ambrosia psilostachya Jon P. Rebman, Mike Mayer 2001-10-3 7504 San Diego Mission Valley Preserve: along the San Diego River from Sefton Park to the Interstate 5 bridge 20 Comment
  SD155694  Ambrosia psilostachya Andrew R. Pigniolo 2003-10-11 1436 San Diego Cuyamaca Lake, Lucky 5 Acquisition, Location 1 - North side of creek on slope and toe of slope northwest of Fages Plaque. 1440 Comment
  SD156135  Ambrosia psilostachya Mark Mendelsohn, Anita Herring 2002-8-22 47 San Diego Santa Ysabel Ranch Open Space Preserve (East property), bordered to the west by SR-79, the north by the Santa Ysabel Indian Reservation, the east by Volcan Mountain Volcan Mountain Open Space Preserve, and to the south by the town of Wynola. 1150 Comment
  SD156921  Ambrosia psilostachya Gay Dorius 2004-7-13 69 San Diego Dry flat area W.of Stream area , bottom of N.S. leg of small isolated canyon abutts to S. side of Clairemont Mesa Blvd. 1&1/2 blks E. of Genesee Ave. and runs E.W. behind Boys Club; above Tecolote Canyon and waste water flows into Tecolote Creek 102 Comment
  SD158349  Ambrosia psilostachya Gale Bustillos 1999-3-3 3 San Diego MCAS Camp Pendleton, east end of the Air Station Comment
  SD158350  Ambrosia psilostachya Gale Bustillos 1999-3-3 20 San Diego MCAS Camp Pendleton, east end of the Air Station Comment
  SD159682  Ambrosia psilostachya Joe Barth 2004-8-26 107 San Diego Chula Vista Wildlife Reserve: in southeast SanDiego Bay; access via electrical power plant. (CVWR was constructed as mitigation for the adjacent J St. marina construction). 0 Comment
  SD159683  Ambrosia psilostachya Jim Lightner 2004-8-31 191 San Diego Bell Bluff Truck Trail 2.5 miles west of Japatul Valley Rd 900 Comment
  SD159684  Ambrosia psilostachya Dick Schwenkmeyer 2004-8-20 52 San Diego Greenbelt section of Shepard Canyon, just east of Santo Road, Tierrasanta 121 Comment
  SD159685  Ambrosia psilostachya Marguerite English 2003-5-2 42 San Diego Private property on Yucca road in Sherilton Valley. Cuyamaca Rancho State park and Cleveland National Forest surround Sherilton Valley. Plants in parking area near rose garden. 1075 Comment
  SD160433  Ambrosia psilostachya Margaret Fillius 2004-9-8 166 San Diego Rose Canyon entering from Bothe Street, and going along the trail 57 Comment
  SD160434  Ambrosia psilostachya Jeannie Gregory, M. A. Kessler, J. Barth, W. Sangkatavat 2004-8-20 1102 San Diego Lake Sutherland; off of Highway 78; eastern edge at Santa Ysabel Creek inlet 616 Comment
  SD160435  Ambrosia psilostachya Jeannie Gregory, Joe Barth 2004-8-21 1152 San Diego The D Street Fill: Sweetwater Marsh National Wildlife Refuge at SE San Diego Bay; between the Chula Vista Nature Center (Chula Vista) and Port of San Diego Marine Terminal (National City). 0 Comment
  SD160726  Ambrosia psilostachya Jon P. Rebman 2002-10-14 8286 San Diego Viejas Mountain: west side along Anderson Truck Trail/West Boundary approx. 0.5 miles north of Victoria Road in Alpine 815 Comment
  SD16110  Ambrosia psilostachya Frank F. Gander 1936-7-7 2674 San Diego Pine Hills Comment
  SD16132  Ambrosia psilostachya Frank F. Gander 1936-7-7 2696 San Diego Pine Hills Comment
  SD161996  Ambrosia psilostachya Robert K. Lauri 2002-8-9 353 San Diego Palomar Mountain, Cleveland National Forest. Along Nate Harrison Grade, approximately 2.25 miles north of Highway 76. 769 Comment
  SD163553  Ambrosia psilostachya Steve Jr. Black 2004-10-14 8 San Diego Dulzura grid - North of SR94 East of Honey Springs Rd - near Dulzura Creek 219 Comment
  SD163851  Ambrosia psilostachya David Lawhead 2004-6-29 39 San Diego East end of Agua Hedionda Lagoon, City of Carlsbad 20 Comment
  SD163852  Ambrosia psilostachya MaryAnn Brooks-Gonyer 2004-10-15 30 San Diego East side of Old Highway 395, just south of Nelson Way Comment
  SD164326  Ambrosia psilostachya Jon P. Rebman, J. Gregory, K. Rich, & M. Elvin 2003-9-30 9529 San Diego Otay Mountain Ecological Reserve (California Dept. of Fish & Game): Southeast of Otay Lake; approx. 1 mile south of Otay Lakes Road; along arroyo bottom at south end of reserve 270 Comment
  SD164327  Ambrosia psilostachya Jon P. Rebman, Jeannie Gregory 2003-7-25 9436 San Diego Rancho Jamul Ecological Reserve: west of Hwy. 94, south of Jamul & north of Otay Lakes Road; along Jamul Creek near old cement kiln 210 Comment
  SD164328  Ambrosia psilostachya Jon P. Rebman, Jeannie Gregory and Jim Rocks 2003-7-15 9353 San Diego Laguna Mountains: Lucky 5 Ranch; southern portion of new acquisition by California State Parks: west side of Sunrise Hwy (S-1) between Cuyamaca Lake and Mount Laguna 1657 Comment
  SD164830  Ambrosia psilostachya Andrew C. Sanders 2004-6-18 28199 San Diego Carlsbad, Agua Hedionda Ecological Reserve, south side of Park St beyond end of Valencia Ave. 7 Comment
  SD165316  Ambrosia psilostachya Nuri Pierce, Chris Schlech, Joe Barth, Vols. from HelixES 2004-8-28 24 San Diego Lakeside, East end of El Monte Road, El Capitan Reservoir, Upward from the dam 173 Comment
  SD165317  Ambrosia psilostachya Daniel Williford 2004-10-5 71 San Diego Fox Outdoor School, W of entrance, along San Luis Rey River, 3.5 miles NW of Lake Henshaw, Highway 76, Santa Ysabel 760 Comment
  SD166540  Ambrosia psilostachya Jon P. Rebman, J. Gregory & J. Lightner 2004-5-6 10145 San Diego Crestridge Ecological Reserve: west of La Cresta between Alpine and El Cajon; disturbed areas under oaks near gated entrance at Horsemill Road, in central part of reserve 409 Comment
  SD166926  Ambrosia psilostachya Jon P. Rebman, J. Gregory, J. Rocks. & K. Rich 2004-12-2 10774 San Diego Walker Canyon Ecological Reserve: between Boulevard and Jacumba on the north side of Interstate 8, along arroyo bottom near stream at the east end of the reserve 844 Comment
  SD166927  Ambrosia psilostachya Jon P. Rebman, J. Gregory & parabotany team 2004-8-20 10659 San Diego Lake Sutherland: north of Hwy. 78 between Ramona and Santa Ysabel; dry lakebed at southeast end of lake 605 Comment
  SD166928  Ambrosia psilostachya Jon P. Rebman, J. Gregory, J. Rocks, & J. Dewitt 2004-8-10 10612 San Diego Sycuan Peak Ecological Reserve (California Dept. of Fish & Game): southeast of Dehesa, southwest of Loveland Reservoir; on the lower north side of Sycuan Peak, at the end Sloan Canyon Road at the entrance gate to the reserve 249 Comment
  SD167299  Ambrosia psilostachya Andrew C. Sanders 2005-9-9 31626 San Diego Batiquitos Lagoon Ecological Reserve, Leucadia, SW side near I-5 and La Costa Ave. 0 Comment
  SD167300  Ambrosia psilostachya Andrew C. Sanders 2005-10-5 31693 San Diego Blue Sky Ecological Reserve (DFG), east of Rancho Bernardo and north of Poway, along road in lower canyon below turnoff to Lake Poway 182 Comment
  SD167301  Ambrosia psilostachya Andrew C. Sanders 2005-10-12 31811 San Diego Carlsbad, Carlsbad Highlands Ecological Reserve, slopes & canyons ca. 1 mile SE of Cerro de la Calavera, SW of the end of Cannon Rd. 91 Comment
  SD167895  Ambrosia psilostachya Barbara Sullivan, Nan Criqui 2005-1-16 92 San Diego City of San Diego, along Carmel Valley Rd Northeast of Los Penasquitos Lagoon 14 Comment
  SD167896  Ambrosia psilostachya Jeannie Gregory, John Gregory 2005-7-17 1816 San Diego Double S Ranch, N of Angel Mountain Road, 11 mi NW of Santa Ysabel, 2 mi W of Lake Henshaw, 4 mi E of Pine Mountain summit 1157 Comment
  SD167897  Ambrosia psilostachya Jeannie Gregory, Joe Barth 2005-7-23 1849 San Diego Town of Alpine, Viejas West private property, 1.6 miles WSW of Viejas Mountain summit, 0.6 miles NW of intersection of Anderson Road and Victoria Drive 601 Comment
  SD167898  Ambrosia psilostachya Larry Hendrickson, Kim Marsden 2003-10-17 201 San Diego Anza-Borrego Desert State Park, Sentenac Cienega just south of State Highway 78 and east of county road S-2. Comment
  SD167899  Ambrosia psilostachya Andrea Harrison 2004-11-27 15 San Diego In riverbed approx 50 yards east of ranger station, Goodan Ranch 241 Comment
  SD170001  Ambrosia psilostachya David Woelfel, June Woelfel 2005-8-14 7 San Diego NW of the City of Fallbrook, N of Daily Road, 0.7mi S of County line, 0.8 mi N of Ross Lake, at the Fallbrook Utility District area on BLM land. 341 Comment
  SD170923  Ambrosia psilostachya Dick Schwenkmeyer 2005-9-29 169 San Diego Cleveland National Forest, Laguna Mountains Recreation Area, 1.5 mi. south of Sunrise Highway on Kitchen Creek Road. 1694 Comment
  SD172934  Ambrosia psilostachya Mike D. Angel, Max Angel 2005-10-23 287 San Diego City of San Diego in Urban Canyon just N of Mission Valley. Approx 1I(c) mi NE of junction of I-8 and SR-163, just W of the Mission Center Road and Sevan Court junction (where the access roads to power line towers are located.) 39 Comment
  SD172935  Ambrosia psilostachya Larry Hendrickson 2005-6-26 1079 San Diego Cuyamaca Rancho State Park. Los Caballos equestrian campground. Approx. 0.8 mile north of Stonewall Peak and 0.3 mile east of intersection of State Hwy 79 and Stonewall Mine Rd. Eastside of Stonewall Mine Rd. beside access road to campground. 1440 Comment
  SD173368  Ambrosia psilostachya Andrew C. Sanders 2004-7-2 28451 San Diego Boden Canyon, tributary of Santa Ysabel Creek at E end of San Pasqual Valley; around pond in middle DFG parcel 320 Comment
  SD173369  Ambrosia psilostachya Andrew C. Sanders 2004-10-15 28879 San Diego San Elijo Lagoon Ecological Reserve (DFG), north end of Santa Helena Dr., 0.5 mi. west of El Camino Real, south of upper end of lagoon 11 Comment
  SD173370  Ambrosia psilostachya Andrew C. Sanders 2005-6-22 31168 San Diego Buena Vista Lagoon Ecological Reserve (DFG), Carlsbad, north side of lagoon between Carlsbad Blvd. (S-21) and the RR, south of Eaton St. Comment
  SD173371  Ambrosia psilostachya Andrew C. Sanders 2004-7-9 28475 San Diego Palomar Mtn., DFG Plaisted Creek Ecological Reserve, NE of Rincon and Pauma Valley, between Plaisted Creek and Hwy 76, SE lobe of reserve in vicinity of residences abandoned in 1996 701 Comment
  SD173669  Ambrosia psilostachya Jan E. Maxted, Don Maxted 2005-9-13 137 San Diego Bratton Valley, Land surrounding 17536 Sierra Cielo Ln, 3 mi. N. of town of Dulzura, 1.25 mi. SW of Lyons Peak summit, 1.25mi. NW of inters of Honey Springs Rd & Deerhorn Valley Rd. 723 Comment
  SD173670  Ambrosia psilostachya Jeremy Buegge 2005-7-30 1323 San Diego City of Escondido (south). Just N of Lake Hodges. Along E. Mission Rd (sign reads Old Highway 395). I(c) mile NW of junction of I-15 and Pomerado Rd (S5), 0.6 mi SE of Bernardo Mountain 103 Comment
  SD174494  Ambrosia psilostachya Beverly Pecunia, Mary Ann Brooks-Gonyer 2005-10-6 14 San Diego NE Escondidio, NE section of Lake Wohlford, along trail that parallels the North shore, Ao to I(c) mile E of East Parking Lot. 458 Comment
  SD174495  Ambrosia psilostachya Krystyna Tatarkiewicz 2005-9-5 42 San Diego Los Penasquitos Canyon Preserve, I(c) mile SE of intersection I-15 and Poway Rd, S side of Los Penasquitos Canyon Creek. 459 Comment
  SD174496  Ambrosia psilostachya Krystyna Tatarkiewicz 2005-8-6 31 San Diego Los Penasquitos Canyon Preserve, 1I(c) miles SE of intersection I-15 and Poway Rd, N side of Los Penasquitos Canyon Creek. 121 Comment
  SD175301  Ambrosia psilostachya Victoria Marshall 2005-11-13 2 San Diego Woodson Mountain, 4.5 mi west of Ramona, 5 miles east of Poway, at the top of the paved service road that accesses the microwave towers atop Mount Woodson. 861 Comment
  SD175302  Ambrosia psilostachya Jon P. Rebman, J. Gregory, M. Mulligan, & J. Barth 2005-8-13 12257 San Diego San Vicente Reservoir: North of Lakeside, east of Hwy. 67, northeast of intersection between Moreno Ave. and Vigilante Road; west side of reservoir in the second cove north of the boat landing 195 Comment
  SD175709  Ambrosia psilostachya Jon P. Rebman, M. Mulligan, K. Rich, M. White & J. Stallcup 2005-9-11 12340 San Diego Long Portrero area: NE of Tecate, SW of Morena Reservoir; ca. 3.5 miles N of Hwy. 94 and north of Portrero Valley Road along a dirt road toward Cottonwood Creek; vicinity of Portrero Creek 750 Comment
  SD177368  Ambrosia psilostachya Barbara Sullivan 2005-8-9 249 San Diego City of San Diego, Crest Canyon, in bottom of canyon, just North of the west end of Lozana Rd on half-mile loop trail. 89 Comment
  SD177369  Ambrosia psilostachya Char Glacy, Nancy Nenow 2005-9-5 120 San Diego Warner Springs, N side of Los Coyotes Rd, 1 mi S from its intersection with Isil Rd. Across Road from metal cattle grate. 1085 Comment
  SD177370  Ambrosia psilostachya Char Glacy, Nancy Nenow 2005-8-30 99 San Diego Los Penasquitos Canyon Preserve on the side trail 50ft. W of Canyonside Park entrance to the preserve. I(c) mi NW of the intersection of Black Mountain Rd. & Mercy Rd. 113 Comment
  SD177958  Ambrosia psilostachya Jon P. Rebman, J. Gregory and M. Mulligan 2006-10-5 12936 San Diego Lake Henshaw (Vista Irrigation District property): N side of Lake along Henshaw Truck Trail, approx. 2.2 miles NE of the junction of Hwy. 76 and E Grade Road 819 Comment
  SD178848  Ambrosia psilostachya MaryAnn Brooks-Gonyer, Beverly Pecunia 2005-9-28 388 San Diego 7 miles north of Escondido, path leading from north side of Gopher Canyon, at E side of intersection with Old Highway 395, between Bonsal and Valley Center; path runs parallel to Old Highway 395 in riparian area. 124 Comment
  SD179871  Ambrosia psilostachya Jon P. Rebman, J. Gregory and L. Aerne-Hains 2007-7-9 13698 San Diego Lake Henshaw: SE of East Grade Road and S of Henshaw Truck Trail, approx. 0.5 air miles NE of the dam; along the north shore of the Lake 815 Comment
  SD179872  Ambrosia psilostachya Jon P. Rebman, P. Famolaro & Parabotany Team 2007-8-8 13783 San Diego Loveland Reservoir: S of Alpine and Japatul Valley Road; downstream (south) from the dam at the extreme southeastern end of the reservoir 321 Comment
  SD180495  Ambrosia psilostachya Nancy Nenow 2005-9-1 171 San Diego San Diego, north end of Balboa Park just south of intersection of Vermont St and Cypress, along dirt access road into the canyon. 88 Comment
  SD180860  Ambrosia psilostachya Larry Hendrickson 2005-9-21 1151 San Diego Cuyamaca Rancho State Park, along access rd to Los Caballos equestrian campground, 0.8 air mi north of Stonewall Peak, 0.3 mi east of intersection of State Hwy 79 and paved access rd to Stonewall Mine. 1433 Comment
  SD180861  Ambrosia psilostachya Larry Hendrickson 2005-10-19 1207 San Diego Banner. Chariot Canyon, along Chariot Canyon Rd. (unpaved), 0.2 air mi south of intersection with State Hwy 78 near cattle guard and BLM boundary sign. 851 Comment
  SD182905  Ambrosia psilostachya Jon P. Rebman, J. Gregory, K. Rich, & P. Famolaro 2007-9-12 13979 San Diego Sweetwater Reservoir: east of National City and south of La Presa; vicinity of riparian zone and upland areas northeast and upstream from the east end of the reservoir 78 Comment
  SD183878  Ambrosia psilostachya Sharon Paulin 2004-8-7 90 San Diego Corte Madera Ranch, Oak Valley, ca. 1 mi S of gate entrance of Ranch (and I-8) on Corte Madera Rd. 1150 Comment
  SD183879  Ambrosia psilostachya Barbara Booth 2006-9-24 31 San Diego Oak Grove. 25249 Oak Grove Truck Trail, ca. 1 mile S of its intersection with Highway 79, in streambed of Rattlesnake Creek at its confluence with Temecula Creek. 915 Comment
  SD183880  Ambrosia psilostachya Victoria Marshall 2006-8-18 411 San Diego Ramona Grasslands (The Nature Conservancy), Ramona; 0.8 mi NW of the intersection of Highland Valley Rd and Rangeland Rd. 420 Comment
  SD183881  Ambrosia psilostachya Melvin M. Sweet 2006-7-21 373 San Diego City of San Diego; along utility road in canyon running from Eastgate Mall (1/3 mile NW of the intersection of Eastgate and Genesee Ave) to the end of Roselle St. (about 3/4 mile SSE from the intersection of I-5 and I-805). 85 Comment
  SD184600  Ambrosia psilostachya Larry Hendrickson 2005-7-11 1117 San Diego Anza-Borrego Desert State Park. Lucky 5 south (unofficial park name), approx. 7.0 miles SSE of intersection of State hwy. 79 and County hwy. S-1; a short distance west of S-1 ~100 meters southwest of old entrance gate. 1647 Comment
  SD185119  Ambrosia psilostachya A. C. Sanders, Kerry Knudsen 2004-9-10 28805 San Diego Boden Canyon, tributary of Santa Ysabel Creek at east end of San Pasqual Valley; at small reservoir in middle DFG Ecological Reserve. 320 Comment
  SD185444  Ambrosia psilostachya Jolynn Robbins 2004-8-23 35 San Diego Damon Lane County Park in south El Cajon. N of the intersection of Fury Ln and Wieghorst Way. 68 Comment
  SD185445  Ambrosia psilostachya Joseph A. Betzler 2002-8-2 894 San Diego San Pasqual Valley (San Diego Wild Animal Park Lease Holding). On Old Milky Way just west of the intersection with San Pasqual Valley Road (Highway 78) 121 Comment
  SD185446  Ambrosia psilostachya Linda Shipman 2006-10-16 37 San Diego Escondido, Daley Ranch (southern end), ca. 2 mi. NNE of the intersection of La Honda Dr. and El Norte Pkwy., ca. 3/4 mi. N of western half of Dixon Lake. 395 Comment
  SD185447  Ambrosia psilostachya CRES Native Seed Gene Bank, Laurie Lippitt 2005-11-10 168 San Diego City of San Diego, Los Penasquitos Canyon Preserve, 0.375 mi N of junction of Sorrento Valley Blvd and Lopez Cayon trail head, SE of Los Penasquitos Canyon Creek. 10 Comment
  SD186593  Ambrosia psilostachya Jon P. Rebman, Margie Mulligan 2008-5-23 15251 San Diego Del Dios Highlands County Preserve: SW of Escondido, NW of Lake Hodges and NE of Olivehain Reservoir; northeastern part of the preserve 148 Comment
  SD18719  Ambrosia psilostachya Frank F. Gander 1937-9-16 4436 San Diego Descanso Junction. Comment
  SD187249 Image available Ambrosia psilostachya Jon P. Rebman, M. Mulligan & W. Schmidtmann 2008-6-19 15593 San Diego Camp Pendleton Marine Corps Base: along North River Road, east of Stuart Mesa Road; along the northern edge of the Santa Margarita River in the southwestern portion of the base 6 Comment
  SD18742  Ambrosia psilostachya Frank F. Gander 1937-9-26 4459 San Diego Pine Valley Comment
  SD187608  Ambrosia psilostachya Hal Goforth 2006-6-30 48 San Diego Rancho San Diego, Hwy 94 S. at the old Steele Canyon Bridge in the dry Sweetwater river bed and banks. 95 Comment
  SD187609  Ambrosia psilostachya John LaGrange, John and Linda La Grange 2006-8-15 22 San Diego Cleveland National Forest, NW of Black Mountain, W side of Lusardi Canyon Truck Trail where the road crosses Middle Ridge between Carney Canyon and Temescal Creek, near Benchmark 2413 712 Comment
  SD187610  Ambrosia psilostachya Warren Schmidtmann, Anna Schmidtmann 2006-9-8 8 San Diego Tecate Peak, 0.8 mi E of peak. 3.1 miles on dirt truck trail to Tecate Peak from Hwy 188 (Tecate Rd), near Box Spring. 671 Comment
  SD187611  Ambrosia psilostachya Carolyn Martus 2006-7-3 301 San Diego Oceanside. Buena Vista Lagoon (western), on the north and east side of Coast Highway along the trail from the Buena Vista Audubon Nature Center. 7 Comment
  SD187612  Ambrosia psilostachya Carolyn Martus 2006-8-18 339 San Diego Bonsall, northern Bonsall Preserve land at the southern end of Ostrich Farm Creek where it meets the San Luis Rey River. 64 Comment
  SD188705  Ambrosia psilostachya Ian Cain, Phil Lambert 2006-9-24 321 San Diego City of Lakeside. Silverwood Wildlife Sanctuary, 13003 Wildcat Canyon Road. On road to observation area, S of gate parking area. 465 Comment
  SD188706  Ambrosia psilostachya Ian Cain, Emily Clayton 2006-8-13 297 San Diego City of Solana Beach. San Elijo Ecological Reserve. 160 meters north east of Santa Helena Street entrance. 14 Comment
  SD188707  Ambrosia psilostachya Jon P. Rebman, M. Mulligan & W. Schmidtmann 2008-6-19 15660 San Diego Camp Pendleton Marine Corps Base: along North River Road, east of Stuart Mesa Road; along the northern edge of the Santa Margarita River in the southwestern portion of the base 13 Comment
  SD188708  Ambrosia psilostachya Ian Cain, Terri Foster 2006-9-11 312 San Diego City of Lemon Grove. Chollas Lake Community Park. North Chollas Canyon, on road to North Chollas Canyon lot, 125 meters northeast of intersection of College Grove Drive and Caminito Chollas. 110 Comment
  SD188709  Ambrosia psilostachya Michael G Simpson 2006-5-24 2729 San Diego Iron Mountain, Poway, near southeastern edge of pond, just NE of inters of Poway Rd and Hwy 67, ca. 1 mile northwest of Iron Mountain peak. 518 Comment
  SD18910  Ambrosia psilostachya Frank F. Gander 1937-9-23 4505 San Diego Warner Springs Comment
  SD189459  Ambrosia psilostachya Andy Mauro, Kathleen Mauro 2006-10-19 34 San Diego San Dieguito County Park, City of Solana Beach, approx. I(c) mile W of S-8 and El Camino Real; entrance road at El Nido and El Camino Real. 42 Comment
  SD192214  Ambrosia psilostachya Fred Roberts, Carol A. Roberts 2006-10-15 6444 San Diego Miramar Marine Corps Air Station: Rose Cyn., south of Miramar Way between Schilt Rd. and Obregon Ave. 135 Comment
  SD19308  Ambrosia psilostachya Frank F. Gander 1937-9-28 4593 San Diego Valley Center Comment
  SD194848  Ambrosia psilostachya Victoria Marshall 2007-8-2 650 San Diego Ramona; Boulder Oaks County Part ca 7.0 mi southwest of Ramona; accessed through private property from Mussey Grade Road; collection area ca 1.5 mi west of Mussey Grade Rd at the cattle pond. 466 Comment
  SD196207  Ambrosia psilostachya Paul Beiley 2007-8-15 167 San Diego Lakeside, Louis A. Stelzer County Park, just S of Wildcat Canyon Rd. about I(c) mi. NE of its intersection with Willow Rd. Along banks of Wildcat Canyon Creek about a half-mile W of Stelzer Summit. 202 Comment
  SD196208  Ambrosia psilostachya Mike Logan, Sharan Logan 2007-9-3 1048 San Diego Oak Grove, edge of Upper San Luis Rey Resource Conservation District, just N of Oak Grove, along Hwy 79 783 Comment
  SD196209  Ambrosia psilostachya Victoria Marshall 2007-10-12 653 San Diego Ramona; Simon Park Open Space Preserve, ca 2 miles SE of intersection of Old Julian Highway and Vista Ramona Rd. 481 Comment
  SD196210  Ambrosia psilostachya Larry Hendrickson, Paul Johnson, Pam Beare, Whitney Meier. 2007-7-11 2470 B San Diego Cuyamaca Rancho State Park, Cuyamaca Mountains. At Soapstone Grade Fire Road, 2.5 surface miles north of intersection with Upper Green Valley Fire Road, 0.7 air mi. NE of Little Stonewall Peak summit. 1431 Comment
  SD19717  Ambrosia psilostachya Frank F. Gander 1937-10-21 4648 San Diego High railroad trestle east of Campo. Comment
  SD198172  Ambrosia psilostachya Melvin M. Sweet 2007-10-19 475 San Diego Cuyamaca State Park, N of Descanso Valley by the Dead Horse Trail about 2.5 km north of its intersection with the Merigan Ranch Fire Road 1192 Comment
  SD198947  Ambrosia psilostachya Jon P. Rebman, M. Mulligan, M. Dinkins, B. Lardiere 2009-7-16 18219 San Diego Camp Pendleton Marine Corps Base: Delta Training Area in the northwestern portion of base; east of Talega Canyon Road along San Mateo Creek and west of Devil Canyon 130 Comment
  SD198948  Ambrosia psilostachya Jon P. Rebman, M. Mulligan, M. Dinkins, B. Lardiere 2009-7-16 18240 San Diego Camp Pendleton Marine Corps Base: Bravo 1 Training Area in the northwestern portion of base; along Talega Canyon Road just south of the Orange County border 160 Comment
  SD20108  Ambrosia psilostachya Frank F. Gander 1937-12-5 4803 San Diego Sumner's Ranch, San Felipe 915 Comment
  SD203213  Ambrosia psilostachya Larry Hendrickson 2007-10-20 2555 San Diego Cuyamaca Mountains, Descanso Creek, Cuyamaca Rancho State Park. Below east Mesa Fire Road, 0.7 mile E of intersection of State hwy. 79, < 0.1 mile SW of Harvey Moore Connector Trail. 1221 Comment
  SD204057  Ambrosia psilostachya Jerilyn Hirshberg 2008-7-26 1898 San Diego Cleveland National Forest, NW of Cuyamaca Mtns, about 6 miles south of intersection of Hwy 78 and 79 (Santa Ysabel), immediately NW of intersection of Eagle Peak Road and road to Deadman Flat 1079 Comment
  SD204058  Ambrosia psilostachya Ian Cain, Matt Rahn, Kelsey Moreno 2008-6-20 936 San Diego City of San Diego. Mission Trails Regional Park. San Diego State University property on North Fortuna Mountain just south of highway 52. 584m east north east of North Fortuna Peak 227 Comment
  SD205154  Ambrosia psilostachya Jerilyn Hirshberg 2008-7-19 1886 San Diego Cleveland National Forest, W side of Cuyamaca Mtns, 1.5 miles west of intersection of Boulder Creek Road and Cedar Creek Road, just west of Eagle Peak 750 Comment
  SD205162  Ambrosia psilostachya Millie Basden-Thomas, Peter Thomas 2006-9-22 73 San Diego South of Julian, along Van Duesen Road, approx 1 mi E of junction with Pine Hills Rd, I(c) mi SW of intersection Cuyamaca Hwy (79) and Apple Lane 1281 Comment
  SD207534  Ambrosia psilostachya Margaret R. Mulligan, J. Hirshberg 2008-10-8 2615 B San Diego Hauser Wilderness, Cleveland National Forest: N side of Hauser Creek, S side of Hauser Creek Road, ca. A| mi S of Morena Butte, just NW of Pacific Crest Trail. 701 Comment
  SD208661  Ambrosia psilostachya Larry Hendrickson 2008-8-24 3249 San Diego Cuyamaca Mountains. Cuyamaca Rancho State Park. West Mesa Fire Road, 0.2 mile SW of intersection with State hwy. 79 and 2.0 air miles ENE of Japacha Peak. 1327 Comment
  SD209983  Ambrosia psilostachya Jon P. Rebman, W. Schmidtmann and volunteers 2010-11-16 20396 San Diego Camp Pendleton: India Training Area; south of De Luz Camp and west of the Santa Margarita River 110 Comment
  SD209984  Ambrosia psilostachya Jon P. Rebman, W. Schmidtmann and volunteers 2010-11-16 20460 San Diego Camp Pendleton: Golf Training Area; west of the Santa Margarita River; along De Luz Creek north of Camp De Luz 64 Comment
  SD209985  Ambrosia psilostachya Jon P. Rebman, W. Schmidtmann, J. Rocks & volunteers 2010-12-2 20496 San Diego Camp Pendleton: India Training Area; along De Luz Road south of Camp De Luz; vicinity of the convergence of the Santa Margarita River and De Luz Creek 39 Comment
  SD210655  Ambrosia psilostachya Margaret R. Mulligan, J. Hirshberg 2008-10-22 2653 San Diego Hauser Wilderness, Cleveland National Forest: Bronco Flats, N edge of Wilderness, S of Skye Valley Road, ca. A| mi W of its intersection with Los Pinos Road. 1000 Comment
  SD210656  Ambrosia psilostachya Margaret R. Mulligan, J. Hirshberg 2008-10-22 2628 San Diego Hauser Wilderness, Cleveland National Forest: N edge of Wilderness, in first large drainage to the NW of Stokes Valley along Skye Valley Road. Drainage begins ca. 1 mi SE on Skye Valley Road from gate to Skye Valley. 869 Comment
  SD210657  Ambrosia psilostachya Larry Hendrickson 2010-9-25 5173 San Diego Cuyamaca Mountains, Cuyamaca Rancho State Park. NW of East Mesa in Upper Green Valley, at intersection of Eastside Trail and Dyar Spring Trail, 0.4 mile E of intersection of State hwy. 79 and access road to Visitor Center and County Outdoor School. 1193 Comment
  SD210658  Ambrosia psilostachya John Groth 2008-7-4 213 San Diego Cleveland National Forest, Cuyamaca Mountains, 3.4 mi WNW of Middle Pk., 1.25 mi ESE of Sunshine Mtn., E of Boulder Creek Rd. 1036 Comment
  SD210659  Ambrosia psilostachya John Groth 2009-8-1 266 San Diego Cleveland National Forest, Cuyamaca Mtns, West side of North Peak, near Grandview Way ca. 2 miles NW of dam at Cuyamaca Lake 1372 Comment
  SD210660  Ambrosia psilostachya Larry Hendrickson 2010-8-8 5024 San Diego Cuyamaca Mountains. North slope of Pine Hills, beside Eagle Peak Road, at sharp curve, 0.1 mile S of intersection with Pine Hills Road. 1214 Comment
  SD214722  Ambrosia psilostachya Larry Hendrickson 2009-7-7 4127 San Diego Mesa Grande. San Dieguito River Park, Joint Powers Authority property. 2.9 air miles WNW of intersection of State hwy. 78-79, and 2.4 air miles SSW of access gate at Mesa Grande Road. 867 Comment
  SD215386  Ambrosia psilostachya Darin L. Banks 1997-6-16 2077 San Diego Pala Indian Reservation. North of the San Luis Rey River, along the disturbed roadsides of S16, between Trujillo Road and Pala Creek. 121 Comment
  SD215798  Ambrosia psilostachya Warren Schmidtmann, M. Mulligan, J. Hirshberg 2009-10-29 244 San Diego Hauser Wilderness, N side of E fork of Barrett Lake, Lower Boneyard Canyon. Southwestern side of Hauser Wilderness. 582 Comment
  SD215799  Ambrosia psilostachya Jerilyn Hirshberg 2009-8-8 2189 San Diego Cleveland National Forest, NW of Cuyamaca Mtns, 0.5 mile south of gate to McGee Flat on Eagle Peak Road, about 1.6 miles SW of intersection of Eagle Peak Road with Boulder Creek Road 1160 Comment
  SD215800  Ambrosia psilostachya Dick Schwenkmeyer 2008-10-10 433 San Diego Cleveland National Forest, Laguna Mountains, 0.58 mi. S of the intersection of Kitchen Creek Road and Sunrise Highway 1735 Comment
  SD216753  Ambrosia psilostachya Jon P. Rebman, W. Schmidtmann, B. Lardiere, & E. Cunningham 2011-4-22 21211 San Diego Camp Pendleton: Victor Training Area; south of Las Pulgas Road, west of I-5, on beach and in a coastal canyon; northwest of the rest stop on I-5 southbound 4 Comment
  SD217553  Ambrosia psilostachya Jeannie Gregory, Victoria Marshall 2009-6-30 3268 San Diego Mesa Grande, Nature Conservancy (Wheatly Property), 2 miles W of Morettis Junction (Pala Road & Hwy 79) E of Mesa Grande Road, 2.5 miles S of dam at Lake Henshaw 1067 Comment
  SD219280  Ambrosia psilostachya Jon P. Rebman, W. Schmidtmann and G. Kenney 2011-8-18 22256 San Diego Camp Pendleton: northwestern portion of Base south of the San Mateo River; vicinity of San Onofre Beach on the north side of San Onofre Creek near the railroad tracks 7 Comment
  SD219281  Ambrosia psilostachya Jon P. Rebman, W. Schmidtmann, G. Kenney, and others 2012-1-4 22354 San Diego Camp Pendleton: Training Area Hotel, along the Santa Margarita River; northwest of Fallbrook 60 Comment
  SD219707  Ambrosia psilostachya Larry Hendrickson 2009-10-17 4358 San Diego Anza-Borrego Desert State Park. West side of Cuyamaca Valley and NE Lake Cuyamaca dam, on the SE-slope of North Peak. 1.3 air miles SW of intersection of State hwy. 78 and County Road S-1, < 0.1 mile W of 79. 1434 Comment
  SD219708  Ambrosia psilostachya Larry Hendrickson 2009-8-1 4177 San Diego Banner Grade (State highway 78) west of Volcan Mountain on SW side of Banner Canyon. 1.5 air miles NE of Julian, 0.3 surface mile E of intersection of 78 and Wynola Road (Juch Road on some maps). 1180 Comment
  SD220154  Ambrosia psilostachya Nancy Nenow 2010-8-28 1453 San Diego Cleveland National Forest; Puerta La Cruz Road; 1.75 miles SE Mitchell Camp Road and Chihuahua Valley Road; 6 miles N of Warner Springs and Hwy 79 1182 Comment
  SD22131  Ambrosia psilostachya Frank F. Gander 1938-8-5 6269 San Diego Road to Observatory, Palomar Mountain. Comment
  SD222154  Ambrosia psilostachya R. K. Brummitt, N. A. Brummitt 1999-8-8 20290 San Diego Near N end of Cuyamaca Lake beside Sunrise Hwy. (S1); 1500 Comment
  SD225412  Ambrosia psilostachya Jon P. Rebman, W. Schmidtmann and G. Kenney 2012-5-22 24027 San Diego Camp Pendleton: Training Area Romeo II; southeast of San Onofre Peak; along Horno Canyon Road east of El Camino Real and I-5 210 Comment
  SD22598  Ambrosia psilostachya Frank F. Gander 1938-8-30 6387 San Diego Near Shrine Camp, Laguna Mountains. Comment
  SD226326  Ambrosia psilostachya Nancy Nenow, Barbara Nolan 2009-9-14 857 San Diego Warner Springs Ranch, about 1 mi NE intersection Lost Creek Road and Hwy 79, I(c) mi north of highway 79 in streambed south of the Pacific Crest Trail about one mile upstream. 925 Comment
  SD228090  Ambrosia psilostachya Jon P. Rebman, W. Schmidtmann, J. Green, V. Marshall,T. Barckley 2012-5-31 24491 San Diego Lake Hodges: south of Escondido; southeast of the intersection of Lake Drive and Beech Lane; northwest side of Lake along the shore and adjacent habitats 99 Comment
  SD22948  Ambrosia psilostachya Frank F. Gander 1938-10-5 6591 San Diego Glencliff Campground. Comment
  SD22986  Ambrosia psilostachya Frank F. Gander 1938-10-5 6629 San Diego Junction Clover Flat Road. Comment
  SD231188  Ambrosia psilostachya Darin L. Banks, Mike Wall 1996-11-12 1235 San Diego NW Palomar Mountains; Agua Tibia Mountains; Cleveland National Firest, E of Agua Tibia Wilderness Area; Eastern Cutca Valley, along the area where the Cutca Trail and Cutca Road meet and crosses the upper drainages of Long Canyon. 1039 Comment
  SD23120  Ambrosia psilostachya Frank F. Gander 1938-10-20 6757 San Diego Lower San Vicente Bridge on road to Ramona. Comment
  SD23206  Ambrosia psilostachya Frank F. Gander 1938-10-20 6843 San Diego Junction; Henshaw to Pala and Palomar Road. Highway to the Stars Comment
  SD235804  Ambrosia psilostachya Sheri Konen, Mike Greene 2008-9-12 67 San Diego Ramona, 4Ao mi N of, about 1 mi W of Pamo Valley Rd along Cleveland National Forest Route 12S04 by Santa Ysabel Creek 277 Comment
  SD235805  Ambrosia psilostachya Joe Barth 2011-10-25 1876 San Diego E side of Lake Murray, Baltimore Drive finger. 163 Comment
  SD235806  Ambrosia psilostachya Beverly Pecunia 2010-9-16 307 San Diego North of Escondido; 1.6 miles NE of I-15 and Mountain Meadows Road, W of Turner Lake 444 Comment
  SD23596  Ambrosia psilostachya Frank F. Gander 1938-11-4 6876 San Diego Encinitas Comment
  SD23627  Ambrosia psilostachya Frank F. Gander 1938-11-4 6907 San Diego Carlsbad Comment
  SD238544  Ambrosia psilostachya Jon P. Rebman, W. Schmidtmann & G. Kenney 2014-4-16 27841 San Diego Camp Pendleton: southeastern portion of Base; Training Area Lima; in a ruderal/disturbed area along a dirt road just south of a large parking lot on 4th Street 103 Comment
  SD238545  Ambrosia psilostachya Jon P. Rebman, W. Schmidtmann & G. Kenney 2014-2-25 27708 San Diego Camp Pendleton: southwest portion of Base; Training Area Oscar 1, north of the Santa Margarita River between I-5 & Stuart Mesa Road, around a pond 3 Comment
  SD238546  Ambrosia psilostachya Jon P. Rebman, W. Schmidtmann, G. Kenney, & M. Mulligan 2013-9-17 26984 San Diego Camp Pendleton: northeast portion of Base; Santa Margarita Mountains, Training Area Delta, westnorthwest of Case Springs Lake, along a dirt road north of Case Springs Road 619 Comment
  SD238547  Ambrosia psilostachya Jon P. Rebman, W. Schmidtmann, G. Kenney, & M. Mulligan 2013-9-17 26955 San Diego Camp Pendleton: northeast portion of Base; Santa Margarita Mountains, along Roblar/Case Springs Road 754 Comment
  SD240550  Ambrosia psilostachya Jon P. Rebman, W. Schmidtmann & G. Kenney 2014-5-6 28261 San Diego Camp Pendleton: Training Area Charlie: northern portion of Base; along Talega Creek and Talega Road near the northern Base boundary 320 Comment
  SD241249  Ambrosia psilostachya Warren Schmidtmann 2013-8-19 389 San Diego Border Road South of Otay Mountain; 5.24 miles W of Tecate Peak; 0.61 miles N of border with Mexico; near staging area for road work 178 Comment
  SD242405  Ambrosia psilostachya Don Fosket 2013-7-6 116 San Diego Cleveland National Forest; north of Ramona; along the Santa Ysabel Creek Trail, 0.75 mile W of junction with Pamo Road 274 Comment
  SD242406  Ambrosia psilostachya Don Fosket 2013-7-18 170 San Diego Cleveland National Forest; north of Ramona; along the Santa Ysabel Creek Trail, 0.75 mile W of junction with Pamo Road 327 Comment
  SD242407  Ambrosia psilostachya Melvin M. Sweet 2009-9-14 861 San Diego Cuyamaca Rancho State Park, East Mesa; near the East Mesa Fire Road, 2.3 miles E of intersection with Hwy 79; .75 mile (line of sight) NE of Oakzanita Peak. 1479 Comment
  SD243449  Ambrosia psilostachya John LaGrange 2010-7-27 717 San Diego Cleveland National Forest; north fork of canyon draining from Mesa Grande into Carney Canyon 0.85 mile south of Patton Lode Mine 641 Comment
  SD243801  Ambrosia psilostachya 1978-8-29 San Diego Chariot Canyon Comment
  SD244921  Ambrosia psilostachya Jon P. Rebman, V. Marshall, J. La Grange, & D. Crockett 2013-6-5 26847 San Diego Cleveland National Forest: vicinity of Buckman Springs, NE of Morena Reservoir; south of Morena Stokes Valley/Corral Canyon Rd. and west of Buckman Springs Road; along streambed 925 Comment
  SD244922  Ambrosia psilostachya Jon P. Rebman, M. Rood, J. & S. Rebman-Rood, I. Happle 2013-10-5 27078 San Diego Anza-Borrego Desert State Park: Oriflamme Canyon; southeast of Julian, west of Box Canyon & south of Granite Peak; riparian area off of Mason Valley Truck Trail 829 Comment
  SD245577  Ambrosia psilostachya Richard L. Breisch 2011-9-19 860 San Diego City of San Diego, Tecolote Canyon Natural Park, south of Mt. Ariane Drive, 0.47 mile N of junction Mt. Acadia Blvd and Snead Avenue; along trail east of Tecolote Creek. 47 Comment
  SD245578  Ambrosia psilostachya Richard L. Breisch 2011-9-16 852 San Diego City of San Diego, Tecolote Canyon Natural Park, south of Mt. Ashmun Drive, within banks of Tecolote Creek about 0.5 mile S of Balboa Avenue 45 Comment
  SD246312  Ambrosia psilostachya Jon P. Rebman, W. Schmidtmann & G. Kenney 2015-5-6 30117 San Diego Camp Pendleton: southeast portion of Base; Juliet Training Area; north of Engineer Hill Rd.; near dirt road along canyon bottom & on east-facing slope 95 Comment
  SD246729  Ambrosia psilostachya Larry Hendrickson 2011-9-20 5612 San Diego Anza-Borrego Desert State Park, Laguna Mountains. Below the Pacific Crest Trail at a tributary of Oriflamme Creek. 4.3 air miles SSE of intersection of State Highway 79 and County Road S-3 (Sunrise Highway) and 0.4 mile SSE of entrance to Lucky 5 Ranch at 1468 Comment
  SD246730  Ambrosia psilostachya Larry Hendrickson 2011-7-22 5526 San Diego Cuyamaca Rancho State Park, Cuyamaca Mountains. Stonewall Creek, 0.9 air mile SE of Stonewall Peak summit and 0.6 mile S of intersection of Stonewall Creek Fire Road and Soapstone Grade Fire Road. 1345 Comment
  SD247775  Ambrosia psilostachya Nancy Nenow 2011-10-18 2114 San Diego Balboa Park; south-east corner between 26th Street and Golf Course Drive on top of mesa 0.18 mile N intersection; W of Golden Hill Recreation Center 63 Comment
  SD248572  Ambrosia psilostachya Jon P. Rebman, W. Schmidtmann & G. Kenney 2015-5-27 30309 San Diego Camp Pendleton: southeastern portion of Base; Juliet Training Area; near Bonsall; canyon area north of Engineer Hill Road 120 Comment
  SD249904  Ambrosia psilostachya Nancy Nenow 2012-7-12 2632 San Diego Leucadia; near corner of B Street and west of South Coast Highway along a stream in a small park. 11 Comment
  SD251975  Ambrosia psilostachya Nancy Nenow, Alina Levy 2011-8-8 2049 San Diego La Jolla; W of Torrey Pines Scenic, SW of the gliderport parking lo;t near bottom stairs the stairs to Blacks Beach. 3 Comment
  SD251976  Ambrosia psilostachya CRES Native Seed Gene Bank, Miguel Kaminsky 2011-10-2 748 San Diego Ramona; Mount Gower Open Space Preserve, 0.4 mile SE of trailhead at end of Gunn Stage Road; 0.92 mile N of junction Watt Road and Ramona Oaks Rd 504 Comment
  SD251977  Ambrosia psilostachya CRES Native Seed Gene Bank, M. Kaminsky, L. Anderson 2011-11-10 757 San Diego Valley Center; Hellhole Canyon Preserve; 0.35 mile N of junction Kaivo Road and Santee Lane; 2.5 mi SE of junction of Valley Center Rd HWY S6 and Lake Wohlford Rd, SW of peak of Rodriguez Mountain 523 Comment
  SD252963  Ambrosia psilostachya Ian Cain, Emily Clayton, Lindsay Willrick 2011-9-10 1720 San Diego Julian; Volcan Mountain County Preserve; 1.95 miles NE of intersection Farmer Road and Wynola Road 1500 Comment
  SD252964  Ambrosia psilostachya CRES Native Seed Gene Bank, L. Anderson, M. Kaminsky, L. Lippitt 2011-7-29 712 San Diego Julian; 0.4 mi NE of junction of HWY 78 and HWY 79, near N end of Ethelwyn Ln, 1 mi S of junction of Banner Grade and Wynola Rd 569 Comment
  SD253595  Ambrosia psilostachya CRES Native Seed Gene Bank, L. Anderson, L. Lippitt 2011-9-8 739 San Diego Pala; Arouba Rd; vicinity 1 mi WSW of junction with Pala Temecula Road; 2.2 mi N of junction of HWY 76 and Pala Mission (Temecula) Rd. 317 Comment
  SD254194  Ambrosia psilostachya Jon Rebman, W. Schmidtmann, & G. Kenney 2016-4-12 31645 San Diego Camp Pendleton: eastern portion of Base; Juliet Training Area; southwest of Fallbrook & west of Bonsall; west of the Base boundary to the east of Vandegrift Blvd. 85 Comment
  SD254195  Ambrosia psilostachya Jon Rebman, John LaGrange 2016-4-2 31266 San Diego Cabrillo National Monument: at the southern tip of the Point Loma Peninsula near the mouth of San Diego Bay; on the upper west-facing slope along the road down to the tidal pools 64 Comment
  SD254798  Ambrosia psilostachya Susan T Welker 1990-9-23 San Diego San Elijo Lagoon Ecological Reserve; Along dirt road from N. Rios Ave., Solana Beach. Near gate on west side. West of I-5, south side of Reserve. 7 Comment
  SD254799  Ambrosia psilostachya Susan T Welker 1990-8-13 San Diego San Elijo Lagoon Ecological Reserve; Near utility road north of Stonebridge mesa. Escondido Creek Floodplain. East of I-5, east side of Reserve. 6 Comment
  SD255080  Ambrosia psilostachya Duncan S. Bell, Sarah DeGroot and Amy Rouillard 2015-10-21 8725 San Diego McCain Valley; top end of the valley, about 1.75 air miles north of the Cottonwood Campground. 1335 Comment
  SD258013  Ambrosia psilostachya Frank Landis, Fred Roberts, Josue Campos 2012-11-27 201211275 San Diego City of San Diego; Del Mar Mesa; eastern end near Highway 56; vicinity 80 yards S of intersection Torrey Santa Fe Road and Camino Del Sur. Plants growing on both banks of Deer Creek 96 Comment
  SD258014  Ambrosia psilostachya Richard L. Breisch 2014-8-16 1129 San Diego San Diego; Marian Bear Natural Park; north of main trail; near SW corner of intersection Of Highway 52 and I-805. 64 Comment
  SD25816  Ambrosia psilostachya Frank F. Gander 1939-9-14 7735 San Diego Dulzura Comment
  SD261460  Ambrosia psilostachya Jon Rebman, J. LaGrange, J. Roberts, M. Fillius, J. Mauseth, P. Cowett, & J. Moore 2017-5-12 33328 San Diego Cleveland National Forest: Barber Mountain area: west of Barrett Lake and southeast of the junction of Honey Springs Road and Lyons Valley Road; along Forest Rte. 17S10/Barber Mountain Road; along stream in rocky canyon 700 Comment
  SD261960  Ambrosia psilostachya Jon Rebman, W. Schmidtmann, M. Mulligan, & G. Kenney 2016-4-6 31358 San Diego Camp Pendleton: northwestern portion of Base; Alpha Two Training Area; San Onofre Creek riparian area east of I-5 and just south of Basilone Road, on the northern end of the San Onofre Mountains 24 Comment
  SD261961  Ambrosia psilostachya Jon Rebman, W. Schmidtmann, & G. Kenney 2016-8-24 31882 San Diego Camp Pendleton: west-central portion of Base; Oscar Two Training Area; along Las Pulgas Canyon Road east of Stuart Mesa Road and west of Basilone Road 20 Comment
  SD263745  Ambrosia psilostachya Mary Jo Churchwell 2014-10-8 937 San Diego Anza-Borrego Desert State Park, South Fork Hellhole Canyon, 5.97 air miles SW of Borrego Springs and .80 air mile NW of intersection of County Highway S-22 and Culp Valley Campground/Pena Springs Road. 1093 Comment
  SD263746  Ambrosia psilostachya John LaGrange, N. Rigoli, A. Herman 2014-8-25 1292 San Diego Cardiff; San Elijo Lagoon Preserve; 300 yards S of intersection Manchester Ave. and Sienna Canyon Drive. 6 Comment
  SD28219  Ambrosia psilostachya Frank F. Gander 1940-9-25 8851 San Diego DeLuz Comment
  SD41392  Ambrosia psilostachya Edith A. Purer 1932-5-6 San Diego Silver Strand Comment
  SD41396  Ambrosia psilostachya Edith A. Purer Aug 1931 San Diego Oceanside Comment
  SD53605  Ambrosia psilostachya E. Norland 1963-7-29 San Diego Roadside near southwest corner of Kenora Dr.and Campo Highway, Spring Valley. Comment
  SD5649  Ambrosia psilostachya Fidella G. Woodcock 24 Oct 0000 San Diego Balboa Park Comment
  SD5650  Ambrosia psilostachya Ralph W. Sumner Sep -Oct 0000 San Diego Valleys near National City. Comment
  SD5653  Ambrosia psilostachya R. D. Alderson Sep 1894 San Diego Witch Creek Comment
  SD83542  Ambrosia psilostachya R. Mitchel Beauchamp, R. C. Pierce 1970-9-26 1359 San Diego North, dry end of marsh, San Dieguito Lagoon, Del Mar. Comment
  SD83639  Ambrosia psilostachya R. Mitchel Beauchamp, M. M. Beauchamp 1970-11-1 1386 San Diego Dry creek bed, near 58th and University. 135 Comment
  SD8634  Ambrosia psilostachya Daniel Cleveland Aug 1884 San Diego Ballena Comment
  SD9185  Ambrosia psilostachya Richard Alderson 1934-8-4 San Diego Pine Hills Comment
  SDSU12744  Ambrosia psilostachya Mary Dellevalle 1996-7-1 1 VII96A San Diego Mission Trails Regional Park, south of Kumeyaay Lake. 91 Comment
  SDSU14414  Ambrosia psilostachya John W. Brown 1993-9-24 S 1 .58 San Diego Along dirt road adjacent to San Mateo Canyon, east end of Sierra One (Bravo One), Marine Corps Base Camp Pendleton. Sect. 28 NE 1/4, T.8 S., R.6 W, USGS 7.5 minute San Clemente. 122 Comment
  SDSU14415  Ambrosia psilostachya Craig H. Reiser, Kyle L. Ince 1990-6-22 22 -VI-90 San Diego Camp Joseph Pendleton MCB. San Diego County, California. Base Section: Oscar I. 9 Comment
  SDSU14435  Ambrosia psilostachya unknown 1994-8-28 San Diego UTM-Easting: 464844.91; UTM-Northing: 3681627. Training Area: CONTONEMENT. LTETM PLOT# 27. 10 Comment
  SDSU18572  Ambrosia psilostachya Ian Cain, Matt Rahn, Kelsey Moreno 2008-6-20 936 San Diego City of San Diego. Mission Trails Regional Park. San Diego State University property on North Fortuna Mountain. 570 meters north east of North Fortuna Peak 227 Comment
  SDSU19172  Ambrosia psilostachya Kristen Hasenstab, Dave Bailey 2008-7-24 127 San Diego Sandia Creek. Riparian habitat, growing densley 4m away from water in well-shaded area. 152 Comment
  SDSU7099  Ambrosia psilostachya unknown 1929-9-1 San Diego Near Grantville. 38 Comment
  SEINET3240773  Ambrosia psilostachya Melvin M. Sweet 2007-1 475 San Diego Cuyamaca State Park, N of Descanso Valley by the Dead Horse Trail about 2.5 km north of its intersection with the Merigan Ranch Fire Road. 1192 Comment
  SEINET3730121 Image available Ambrosia psilostachya Jon P. Rebman, W. Schmidtmann and G. Kenney 2012-5-22 24027 San Diego Camp Pendleton. Training Area Romeo II; southeast of San Onofre Peak; along Horno Canyon Road east of El Camino Real and I-5. 210 Comment
  SEINET3831786  Ambrosia psilostachya Linda Shipman 2006-1 37 San Diego Escondido, Daley Ranch (southern end) ca. 2 mi. NNE of the intersection of La Honda Dr. and El Norte Pkwy., ca 3/4 mi N of western half of Dixon Lake 369 Comment
  SEINET7987877  Ambrosia psilostachya Jon P. Rebman 1999-9-17 6022 San Diego San Diego, California, Mission Hills area of the city of San Diego 55 Comment
  SEINET7987878  Ambrosia psilostachya Jon P. Rebman 1999-9-10 5987 San Diego San Diego, California, N Park area of the city of San Diego 140 Comment
  SEINET7987880  Ambrosia psilostachya Jon P. Rebman 2003-9-30 9529 San Diego Otay Mountain Ecological Reserve, SE of Otay Lake;aprox. 1 mile S of Otay Lakes Road; arounda small pond on E side of reserve of reserve 270 Comment
  SEINET7987883  Ambrosia psilostachya Melvin M. Sweet 2006-7-21 373 San Diego San Diego city, along utility road in canyon running from Eage Mall. 0.75 mi. NW of the intersection of Eage and Genesee Ave, to the end of Roselle St. 85 Comment
  SEINET8044308 Image available Ambrosia psilostachya Larry Hendrickson 2005-1 1207 San Diego Banner. Chariot Canyon along Chariot Canyon Rd. (unpaved), 0.2 air mi south of intersection of state hwy. 78 near cattle guard and BLM boundry sign 852 Comment
  SJSU406  Ambrosia psilostachya A. W. Jacobs 1938-7-23 San Diego 9 miles E of Campo, Campo Creek drainage about 2 mi N of Mexican boundary, south-central San Diego County Comment
  UC134310  Ambrosia psilostachya T. S. Brandegee 1902-1 San Diego Mission Valley Mission Valley Comment
  UC1787858  Ambrosia psilostachya Jon P. Rebman, Jeannie Gregory, Jim Rocks 2003-7-15 9353 San Diego Laguna Mountains: Lucky 5 Ranch; southern portion of new acquisition by California State Parks: west side of Sunrise Hwy (S-1) between Cuyamaca Lake and Mount Laguna 1657 Comment
  UC489271  Ambrosia psilostachya C. V. Meyer 1928-8-8 638 San Diego Escondido Comment
  UC577113  Ambrosia psilostachya Lewis S. Rose 1935-7-19 35300 San Diego Ramona 426 Comment
  UC676840  Ambrosia psilostachya Ira L. Wiggins 1927-8-30 2670 San Diego w side North Peak Comment
  UC676848  Ambrosia psilostachya Ira L. Wiggins 1926-10-16 2111 San Diego 4 mi from, on road to Cayamuca Julian; Cayamuca Mountains Region Comment
  UC676850  Ambrosia psilostachya Ira L. Wiggins 1927-8-29 2605 San Diego 4 mi e, on hwy to Santa Ysabel Ramona; Santa Ysabel, Hat Field Creek Comment
  UCD159516  Ambrosia psilostachya D. S. Park 2010-9-13 261 -1 San Diego Balboa Park. Abundant along golf area. 70 Comment
  UCD159517  Ambrosia psilostachya D. S. Park 2010-9-13 261 -2 San Diego Balboa Park. Abundant along golf area. 70 Comment
  UCR109666  Ambrosia psilostachya R. D. Goeden, Don W. Ricker 1969-2-11 s.n. San Diego Coastal Plain, Miramar 137 Comment
  UCR115804  Ambrosia psilostachya George K. Helmkamp, E. A. Helmkamp 2000-10-17 6226 San Diego Peninsular Range, Lawrence Welk Commercial Complex, c. 1.5 miles west of the Oat Hills, and south of Moosa Canyon 299 Comment
  UCR120124  Ambrosia psilostachya Jon P. Rebman, Dale Clark, Oscar Solis 1999-9-17 6022 San Diego Mission Hills area of the city of San Diego; canyon just SW of Mission Hills Park; behind Dale Clark's property at 1849 Lyndon Road 55 Comment
  UCR120134  Ambrosia psilostachya Jon P. Rebman, Annette Winner, Oscar Solis 1999-9-10 5987 San Diego South Coast, North Park area of the city of San Diego, canyon just south of Juniper Street between 33rd Street and Commonwealth Ave. 140 Comment
  UCR122231  Ambrosia psilostachya A. C. Sanders, J. R. Ekhoff 2001-9-7 24869 San Diego Peninsular Range, Boden Canyon, tributary of Santa Ysabel Creek at E end of San Pasqual Valley; along road in upper DFG parcel 396 Comment
  UCR136090  Ambrosia psilostachya A. C. Sanders 2004-6-18 28199 San Diego South Coast, Carlsbad, Agua Hedionda Ecological Reserve, south side of Park St beyond end of Valencia Ave. 8 Comment
  UCR137277  Ambrosia psilostachya A. C. Sanders, Kerry Knudsen 2004-7-2 28451 San Diego Peninsular Range, Boden Canyon, tributary of Santa Ysabel Creek at E end of San Pasqual Valley; around pond in middle DFG parcel 320 Comment
  UCR137299  Ambrosia psilostachya A. C. Sanders, Kerry Knudsen, J. R. Ekhoff 2004-7-9 28475 San Diego Peninsular Range, Palomar Mtn., DFG Plaisted Creek Ecological Reserve, NE of Rincon and Pauma Valley, between Plaisted Creek and Hwy 76, SE lobe of reserve in vicinity of residences abandoned in 1996 793 Comment
  UCR142611  Ambrosia psilostachya A. C. Sanders, Kerry Knudsen 2004-10-15 28879 San Diego South Coast, San Elijo Lagoon Ecological Reserve (DFG), north end of Santa Helena Dr., 0.5 mi. west of El Camino Real, south of upper end of lagoon 30 Comment
  UCR145921  Ambrosia psilostachya Jon P. Rebman, Jeannie Gregory 2003-7-25 9436 San Diego Peninsular Range, Rancho Jamul Ecological Reserve: west of Hwy. 94, south of Jamul & north of Otay Lakes Road; along Jamul Creek near old cement kiln 210 Comment
  UCR153995  Ambrosia psilostachya Jon P. Rebman, M. Mayer 2001-10-3 7504 San Diego Mission Valley Preserve: along the San Diego River from Sefton Park to the Interstate 5 bridge. Square: R8 20 Comment
  UCR154772  Ambrosia psilostachya A. C. Sanders 2005-5-27 30320 San Diego South Coast, Batiquitos Lagoon Ecological Reserve, north side of lagoon, east of the I-5 Fwy, along the trail past the nature center 30 Comment
  UCR156174  Ambrosia psilostachya Jon P. Rebman, J. Gregory, J. Rocks. & K. Rich 2004-12-2 10774 San Diego Walker Canyon Ecological Reserve: between Boulevard and Jacumba on the north side of Interstate 8, along arroyo bottom near stream at the east end of the Reserve. San Diego Atlas Square T27 845 Comment
  UCR156718  Ambrosia psilostachya Jon P. Rebman, J. Gregory, J. Rocks, & J. Dewitt 2004-8-10 10612 San Diego Sycuan Peak Ecological Reserve (California Dept. of Fish & Game): southeast of Dehesa, southwest of Loveland Reservoir; on the lower north side of Sycuan Peak, at the end Sloan Canyon Road at the entrance gate to the reserve 250 Comment
  UCR156724  Ambrosia psilostachya Jon P. Rebman, J. Gregory & James Lightner 2004-5-6 10145 San Diego Crestridge Ecological Reserve: west of La Cresta between Alpine and El Cajon; disturbed areas under oaks near gated entrance at Horsemill Road, in central part of reserve 410 Comment
  UCR159029  Ambrosia psilostachya A. C. Sanders, Jennifer Jones 2005-6-22 31168 San Diego South Coast, Buena Vista Lagoon Ecological Reserve (DFG), Carlsbad, north side of lagoon between Carlsbad Blvd. (S-21) and the RR, south of Eaton St. 6 Comment
  UCR159504  Ambrosia psilostachya Jon P. Rebman, J. Gregory, K. Rich, & M. Elvin 2003-9-30 9529 San Diego Otay Mtn Ecological Reserve (Calif. Dept. of Fish & Game): SE of Otay Lake, c. 1 mi south of Otay Lakes Rd.; along arroyo bottom at S end of the reserve. Square: U14 270 Comment
  UCR161428  Ambrosia psilostachya A. C. Sanders, T. B. Salvato 2005-9-9 31626 San Diego South Coast, Batiquitos Lagoon Ecological Reserve, Leucadia, SW side near I-5 and La Costa Ave. 6 Comment
  UCR162016  Ambrosia psilostachya A. C. Sanders, T. B. Salvato 2005-10-5 31693 San Diego Peninsular Range, Blue Sky Ecological Reserve (DFG), east of Rancho Bernardo and north of Poway, along road in lower canyon below turnoff to Lake Poway 213 Comment
  UCR162197  Ambrosia psilostachya A. C. Sanders, T. B. Salvato 2005-10-12 31811 San Diego South Coast, Carlsbad, Carlsbad Highlands Ecological Reserve, slopes & canyons c. 1 mile SE of Cerro de la Calavera, SW of the end of Cannon Rd. 91 Comment
  UCR165862  Ambrosia psilostachya A. C. Sanders, Kerry Knudsen 2004-9-10 28805 San Diego Peninsular Range, Boden Canyon, tributary of Santa Ysabel Creek at E end of San Pasqual Valley; at small reservoir in middle DFG Ecological Reserve parcel 320 Comment
  UCR202276  Ambrosia psilostachya Jon P. Rebman, P. Famolaro and Parabotany Team 2007-8-8 13783 San Diego Loveland Reservoir, south of Alpine and Japatul Valley Road, just below the dam (south) at the extreme southeastern end of the reservoir. Square Q16 322 Comment
  UCR202794  Ambrosia psilostachya Melvin M. Sweet 2007-10-19 475 San Diego Peninsular Range, Cuyamaca State Park; north of Descanso Valley by the Dead Horse Trail about 2.5 km north of its intersection with the Merigan Ranch Fire Road. Square O20, San Diego Co. Plant Atlas. 1192 Comment
  UCR236805  Ambrosia psilostachya Jon P. Rebman, Warren Schmidtmann, B. Lardiere, E. Cunningham 2011-4-22 21211 San Diego Camp Pendleton, Victor Training Area, south of Las Pulgas Road, west of I-5, on beach and in coastal canyon; northwest of the rest stop on I-5 southbound. Square F4. 5 Comment
  UCR236933  Ambrosia psilostachya Jon P. Rebman, Warren Schmidtmann & volunteers 2010-11-16 20460 San Diego Camp Pendleton; Golf Training Area; west of the Santa Margarita River, along De Luz Creek, north of Camp De Luz. Square C6 65 Comment
  UCR239728  Ambrosia psilostachya Jon P. Rebman, Warren Schmidtmann, G. Kenney, et al. 2012-1-4 22354 San Diego Camp Pendleton, Training Area Hotel, along the Santa Margarita River, northwest of Fallbrook 60 Comment
  UCR254225  Ambrosia psilostachya Joe Barth 2011-10-25 1876 San Diego Peninsular Range, E side of Lake Murray; Baltimore Dr. finger of the lake; Atlas square Q11 163 Comment
  UCR254518  Ambrosia psilostachya Jon P. Rebman, Warren Schmidtmann, G. Kenney, Margaret R. Mulligan 2013-9-17 26984 San Diego Camp Pendleton, northeastern portion of base, Santa Margarita Mountains, Training Area Delta, WNW of Case Springs Lake, along a dirt road north of Case Springs Road Atlas Square: B4 620 Comment
  UCR263866  Ambrosia psilostachya Robert K. Lauri 2002-8-9 353 San Diego Peninsular Range, Palomar Mountain, Cleveland National Forest. Along Nate Harrison Grade, c. 2.25 miles north of Highway 76 770 Comment
  UCR272132  Ambrosia psilostachya Duncan S. Bell, Sarah J. De Groot, Amy Rouillard 2015-10-21 8725 San Diego top end of the McCain Valley, c. 1.75 air miles north of the Cottonwood Campground 1335 Comment
  SD5651  Ambrosia psilostachya Ralph W. Sumner Jul 1920 San Diego San Diego Comment
  SD8637  Ambrosia psilostachya Daniel Cleveland Jul 1881 San Diego El Cajon Grade. Comment
  SDSU14411  Ambrosia psilostachya Eamon O'Regan 1991-7-8 San Diego DMC 46831 368759. T.5 0.5 mi S of Training Town. San Diego County, California. 91 Comment
  SEINET10616722  Ambrosia psilostachya R. Mitchell Beauchamp 2006-12-12 Beauchamp s.n. San Diego Oceanside. Rancho Gaujone Road. Wismer parcel. Comment
  SEINET7987881  Ambrosia psilostachya Marguerite English 2003-5-2 42 San Diego Private property on Yucca road in Sherilton Valley, Cuyamaca Rancho State Park and Cleveland Natinal Forest Sround Sherilton Valley 1076 Comment
  UC172604  Ambrosia psilostachya Dr. E. Palmer 1875-1 161 San Diego Comment
  UC896733  Ambrosia psilostachya Mary F. Spencer 1918-8-5 975 San Diego sandy hills San Diego 50 Comment



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