Search Results — 179 specimen records retrieved (172 records with coordinates)
Results for search: County=SAN DIEGO; Scientific name=Ambrosia dumosa (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/consortium/).
 Records are made available under the CCH Data Use Terms.

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC17051  Ambrosia dumosa Donald W. Kyhos 1960-3-26 60 -15 San Diego Summit of Yaqui Pass, Anza-Borrego Desert State Park. Comment
  CAS-BOT-BC17052  Ambrosia dumosa H. S. Gentry 1933-2-25 s.n. San Diego The Narrows, San Felipe Wash Comment
  CAS-BOT-BC17053  Ambrosia dumosa Alice Eastwood 1913-4-14 2772 San Diego San Felipe Wash, Colorado Desert Comment
  CAS-BOT-BC17054  Ambrosia dumosa Donald W. Kyhos 1960-3-26 60 -11 San Diego State Highway 78, 15.4 miles west of junction with U.S. Highway 99, west of Ocotillo Wells. Comment
  CAS-BOT-BC17055  Ambrosia dumosa Donald W. Kyhos 1960-3-26 60 -12 San Diego State Highway 78, 15.4 miles west of junction with U.S. Highway 99, west of Ocotillo Wells. Comment
  CAS-BOT-BC17056  Ambrosia dumosa Donald W. Kyhos 1960-3-26 60 -10 San Diego State Highway 78, 10.3 miles west of junction with U.S. Highway 99, west of Ocotillo Wells. Comment
  CAS-BOT-BC17057  Ambrosia dumosa Alice Eastwood 1913-4-14 2730 San Diego Yaqui Wells, Colorado Desert Comment
  CAS-BOT-BC17058  Ambrosia dumosa C. L. Hitchcock 1966-3-17 24235 San Diego E. San Diego Co: 6 mi. w. of Ocotillo Well Comment
  CAS-BOT-BC17059  Ambrosia dumosa S. B. Parish; W. F. Parish 1880-3-1 624 San Diego Borders of Colorado Desert at Agua Caliente Comment
Read comments
Nov 2 2019
  CAS-BOT-BC17060  Ambrosia dumosa Edgar A. Mearns; L. Schoenfeldt 1894-5-12 3099 San Diego Mountain Spring Comment
  CAS-BOT-BC17061  Ambrosia dumosa Donald W. Kyhos 1960-3-26 60 -14 San Diego State Highway 78, 25.5 miles west of junction with U.S. Highway 99, near San Felipe Creek. Comment
  CAS-BOT-BC22378  Ambrosia dumosa M. E. Jones 1906-4-19 s.n. San Diego Choia (sic) Ranch 609 Comment
  CAS-BOT-BC30822  Ambrosia dumosa Ethel H. Campbell 1921-5-1 40 San Diego Between Jacumba & Mountain Springs, east side of pass. Comment
  CAS-BOT-BC30823  Ambrosia dumosa Peter H. Raven 1960-3-18 14848 San Diego Coyote Creek 4.5 miles north of Borrego Spring Comment
  CAS-BOT-BC30824  Ambrosia dumosa LeRoy Abrams 1903-4-2 3179 San Diego Signal mountain, Colorado desert Comment
  CAS-BOT-BC30825  Ambrosia dumosa Donald W. Kyhos 1960-3-26 60 -13 San Diego State Highway 78, 20.4 miles west of junction with U.S. Highway 99, near San Felipe Creek. Comment
  CHSC20152  Ambrosia dumosa J. H. Moyer 1975-3-26 4 San Diego Small population 9.6 km SE of Borrego Springs along Borrego Springs Road. 50 Comment
  CHSC26530  Ambrosia dumosa James Henrickson 1970-4-11 4542 San Diego 8 air miles SSE of Borrego Springs near summit of Yaqui Pass in lateral canyon near Co. Hy. S3. 524 Comment
  CHSC30425  Ambrosia dumosa Jeffrey M. Lund 1980-3-31 41 San Diego At the Elephant Tree Monument in Anza-Borrego Desert Park. 121 Comment
  CHSC35351  Ambrosia dumosa James Henrickson 1973-3-18 8640 b San Diego 10 miles NW of Borrego Springs at trail end near Salvidore Canyon. 548 Comment
  CLARK-A1528-1079  Ambrosia dumosa Cameron Duncan 1966-4-8 San Diego Anza-Borrego Desert State Park 457 Comment
  HSC79404  Ambrosia dumosa James Henrickson 1973-3-18 8640 San Diego 10 mi. NW of Borrego Springs at trail end near Salvidore Canyon 549 Comment
  JEPS40932  Ambrosia dumosa Carl V. Meyer 1927-4-9 55 San Diego San Felipe Wash Comment
  JEPS40946  Ambrosia dumosa W. L. Jepson 11699 San Diego in, se end of Santa Rosa Mts. Silent Canon; Santa Rosa Mts. 304 Comment
Read comments
May 16 2011
  LA202901  Ambrosia dumosa Bayard H. Brattstrom; 1949-4-11 sn San Diego Clark Dry Lake 182 Comment
  LA202902  Ambrosia dumosa B. H. Brattstrom; 1949-4-12 sn San Diego base of Borrego Mountain 60 Comment
  LA202910  Ambrosia dumosa Harlan Lewis; 1941-4-11 sn San Diego Borrego: Hellhole Comment
  LA202917  Ambrosia dumosa B. H. Brattstrom; 1949-4-12 sn San Diego W of the Narrows 304 Comment
  OBI18915  Ambrosia dumosa David J. Keil, Donald Pinkava, Bruce Parfitt, Malcolm McLeod 1979-3-19 12998 San Diego About 3 mi W of Ocotillo Wells, just outside of E boundary of Anza-Borrego State Park. Comment
  OBI25270  Ambrosia dumosa F. Seaman 1972-3-23 69 -2 San Diego 3 mi N of Ocotillo on State hwy S-2 Comment
  POM122921  Ambrosia dumosa Marcus E. Jones 1926-1-21 s.n. San Diego Yaqui Well, Colorado Desert. Comment
  POM209549  Ambrosia dumosa Florence J. Youngberg 1935-4-11 119 San Diego Borrego Palm Canyon. Comment
  POM280796  Ambrosia dumosa Henry J. Ramsey, Henry J. Ramsey 1940-3-18 s.n. San Diego Borrego Valley, near Benson [Ocotillo Wells] Comment
  POM294142  Ambrosia dumosa Lyman Benson 1945-11-11 11952 San Diego Sand dunes, Borego [Borrego] Valley. 61 Comment
  POM38980  Ambrosia dumosa Marcus E. Jones 1906-4-10 s.n. San Diego Cholla Ranch, near San Felipe, W. Colorado Desert 609 Comment
  POM50029  Ambrosia dumosa W. W. Eggleston 1924-4-15 19797 San Diego Dos Cabezas. 500 Comment
  RSA0116137  Ambrosia dumosa Jim M. Andre 2016-2-23 34648 San Diego Borrego Desert: Anza Borrego St Park; Salada Arroyo, along jeep trail to Seventeen Palms, about 0.5 mi. south of S-22. 245 Comment
  RSA15100  Ambrosia dumosa Daniel Cleveland 1885-6-25 s.n. San Diego Mountain Spring Grade. Comment
Read comments
Jul 25 2012
  RSA349176  Ambrosia dumosa Thomas S. Elias, K. Tomlinson, D. Kama, M. Williams 1985-3-15 9212 San Diego Anza- Borrego State Park; along road to Arroyo Hueso 189 Comment
  RSA416984  Ambrosia dumosa Paul C. Silva 1941-3-29 11 San Diego Foot of Palm Canyon, Borego Valley, Colorado Desert Comment
  RSA43758  Ambrosia dumosa E. B. Higgins 1949-4-13 s.n. San Diego Entrance to Cranebrake Canyon. Comment
  RSA608662  Ambrosia dumosa R. S. Woglum 1935-3-12 245 San Diego Sonoran Desert, Borrego Valley. Comment
  RSA678066  Ambrosia dumosa Sarah J. De Groot 2002-11-29 815 San Diego Anza-Borrego Desert State Park Comment
  RSA710480  Ambrosia dumosa Jon P. Rebman 2005-3-19 11259 San Diego Anza-Borrego Desert State Park: west of Ocotillo; eastern base of Jacumba Mountains; vicinity of Mortero Palms northwest of Dos Cabezas Spring. 595 Comment
  SBBG22761  Ambrosia dumosa D. Myrick 1965-2-25 1030 San Diego near Borrego Springs 182 Comment
  SBBG61680  Ambrosia dumosa C. F. Smith 1961-9-26 6518 San Diego Little Blair Valley Comment
  SBBG7542  Ambrosia dumosa H. and M. Dearing 1931-4-6 4598 San Diego Anza-Borrego State Park Comment
  SD10534  Ambrosia dumosa Frank F. Gander 1935-3-7 136 2 San Diego Borrego Valley Comment
  SD113187  Ambrosia dumosa Darley F. Howe 1938-4-15 649 San Diego Borrego State Park near Palm Canyon. Comment
  SD138466 Image available Ambrosia dumosa Charles F. Harbison 1951-5-22 San Diego Mt. Springs. Comment
  SD154968  Ambrosia dumosa Joe Barth 2004-3-21 47 San Diego Devil's Slide Lane near top, between Shell Reef Expressway and San Felipe Wash 59 Comment
  SD155695  Ambrosia dumosa Patrick McConnell 2004-4-3 42 San Diego Anza Borrego Desert State Park, Vallecitos Mtns, SDiego Co., CA 618 Comment
  SD156703  Ambrosia dumosa Unknown 1939-12-14 San Diego Mason Valley Comment
  SD156704  Ambrosia dumosa Unknown 1939-4-4 San Diego Vallecito Comment
  SD156920  Ambrosia dumosa Jeannie Gregory, John Gregory 2004-2-29 672 San Diego Northeast of Borrego Springs on DiGiorgio Road. 249 Comment
  SD158236  Ambrosia dumosa Robin Halford 2004-4-4 22 San Diego 536 Indian Head Ranch Road, Borrego Springs; 2 miles north of S22 235 Comment
  SD161345  Ambrosia dumosa Joe Barth 2004-10-30 108 San Diego In and near San Felipe Wash, NE of East Butte Borrego Mt. 61 Comment
  SD161346  Ambrosia dumosa Char Glacy, Nancy Nenow 2005-2-27 29 San Diego Anza Borrego Desert State Park - On road between S2 and Palm Springs. About 50 yards in from the North of S2. Comment
  SD161596  Ambrosia dumosa Mike D. Angel 2005-1-15 47 San Diego Agua Caliente - Squaw Pond Trail. Agua Caliente is county park in Anza-Borrego Desert about 25 miles north of Ocotillo on County Highway S2. 430 Comment
  SD16730  Ambrosia dumosa Frank F. Gander 1937-4-6 3185 San Diego Extreme northeast corner of San Diego County. Comment
  SD167900  Ambrosia dumosa Mike D. Angel, John Dewald 2005-3-5 178 San Diego Anza-Borrego Desert State Park. June Wash. Exit Highway S2 3.2 miles from Agua Caliente Regional Park. Take dirt road north. Road forks about 2.5 miles in. Take right fork. Drive about 1.3 miles further until road ends 404 Comment
  SD16805  Ambrosia dumosa Frank F. Gander 1937-4-7 3260 San Diego Kane Springs Road, County Line Comment
  SD168515  Ambrosia dumosa Jon P. Rebman, N. Nenow, C. Glacy, & G. & M. Brooks-Gonyer 2005-3-19 11259 San Diego Anza-Borrego Desert State Park: west of Ocotillo; eastern base of Jacumba Mountains; vicinity of Mortero Palms northwest of Dos Cabezas Spring 594 Comment
  SD170002  Ambrosia dumosa Joe Barth 2005-2-19 255 San Diego Anza-Borrego Desert State Park: Mortero Canyon Rd. about .2 mile southwest of Hwy S2 (just north of Lava Flow Wash crossing). 289 Comment
  SD170003  Ambrosia dumosa Jeannie Gregory, John Gregory, Karen Rich, Gary Erbeck 2005-3-19 1271 San Diego Anza-Borrego State Park; 8 miles W of Ocotillo at base of Jacumba Mtns; Mortero Canyon Rd; by the railroad tracks just SW of Dos Cabezas Mine. 529 Comment
  SD170924  Ambrosia dumosa Larry Hendrickson 2005-4-30 595 San Diego Plum Canyon, Anza-Borrego Desert State Park. Approx. 0.6 air mi SE of Sentenac Mountain and 1.8 miles SW of intersection of unpaved road and State Hwy 78, at Cal. Riding & Hiking Trail. 732 Comment
  SD170925  Ambrosia dumosa Larry Hendrickson, L. Louise Jee 2005-4-27 562 San Diego Anza-Borrego Desert State Park. Grave Wash at the SE end of the Santa Rosa Mountains in California State Wilderness. Approx. 5.0 miles WSW of Imperial Co. Hwy 86 at the Grave Wash overpass bridge. 300 ft. west of County line/Park boundary. 167 Comment
  SD170926  Ambrosia dumosa Larry Hendrickson 2005-4-9 502 San Diego Anza-Borrego Desert State Park. Approx. 2.0 miles east of historic Vallecito Stage Station. Short canyon just East of Alta Bisnaga Wash, 0.2 mi North of County Hwy S-2, westside of small hill (Guard on Agua Caliente Springs 7.5' topo map). 427 Comment
  SD170927  Ambrosia dumosa Larry Hendrickson 2005-4-3 459 San Diego Anza-Borrego Desert State Park. Mason Valley, East of Vallecito Wash on NE side of County Hwy S-2 approx. 0.9 mi SE of access road to Oriflamme Canyon. 671 Comment
  SD170928  Ambrosia dumosa Larry Hendrickson 2005-3-4 355 San Diego Anza-Borrego Desert State Park. Mountain Palm Springs. Southwest of parking area, along trail. 244 Comment
  SD171570  Ambrosia dumosa Jon P. Rebman, Norman Roberts 2005-4-22 11761 San Diego Anza-Borrego Desert State Park: Henderson Canyon, approx. 2 miles north of Borrego Springs, just northwest of Galleta Meadows 305 Comment
  SD175969  Ambrosia dumosa Joe Barth 2005-10-20 750 San Diego Anza-Borrego Desert State Park. In Fish Creek Wash ESE of the Vallecito Mountains, and N of the East Mesa. ~0.5 mile SW of the S entrance to Split Mountain gorge, 1 mile W of the Imperial County line, and 0.8 mile N of the formation called Elephant Knees. 156 Comment
  SD175970  Ambrosia dumosa Joe Barth 2005-10-19 725 San Diego Anza-Borrego Desert State Park. Lower Borrego Valley on the side of Ol' Kane Springs Rd ca 4.2 miles from Split Mt Rd. ~5 miles ENE of summit of Sunset Mt. About 3.7 miles WSW of town of Ocotillo wells, and ~4.4 miles east of Hwy 78. 171 Comment
  SD175971  Ambrosia dumosa Joe Barth 2005-10-14 668 San Diego Anza-Borrego Desert State Park, SE area of Carrizo Valley, mouth of Canyon sin Nombre ~0.4 mile S of confluence with Carrizo Creek. 174 Comment
  SD177371  Ambrosia dumosa Larry Hendrickson, Margaret Mulligan, Cathleen Weigand 2006-5-17 1424 San Diego Anza-Borrego Desert State Park. North side of San Felipe Wash, 1.0 mi west of intersection of State Hwy 78 and County Hwy S-3 on south side of Grapevine Canyon Rd. (poleline road). 434 Comment
  SD177372  Ambrosia dumosa Larry Hendrickson, Margaret Mulligan, Cathleen Weigand 2006-5-18 1440 San Diego Anza-Borrego Desert State Park. Yaqui Flat, approx. 2.5 miles west of intersection of State Hwy 78 and County Hwy S-3 and 0.5 mi north of Hwy 78, a short distance north of San Felipe Wash and Grapevine Canyon Rd. 525 Comment
  SD177373  Ambrosia dumosa Larry Hendrickson, Cathleen Weigand, Brian Woodward 2006-5-23 1497 San Diego Anza-Borrego Desert State Park. Grapevine Canyon, approx. 0.7 km NW of Bitter Creek Canyon on north side of wash. 605 Comment
  SD177959  Ambrosia dumosa Jon P. Rebman 2006-5-20 12860 San Diego Vallecito Valley (BLM Wilderness area): S of Vallecito Stage Station County Park in Potrero Canyon, base of the Sawtooth Mountains on the west side 590 Comment
  SD178849  Ambrosia dumosa Melvin M. Sweet 2006-3-25 289 San Diego Anza-Borrego Desert State Park, Coyote Canyon, Lower Willows, about 7 mi NW of town of Borrego Springs, near the hiking/riding trail above the 3rd crossing. 363 Comment
  SD180496  Ambrosia dumosa Bill Sullivan 2006-4-18 196 San Diego Anza-Borrego Desert State Park, Borrego Mountain, Hawk Canyon, I(c) mi N on canyon jeep trail from Buttes Pass jeep road. 188 Comment
  SD180859  Ambrosia dumosa Katherine F. Carey, Lindsey Baseda, Jeremy, Erika Brewer 2005-4-2 10 San Diego Anza-Borrego Desert State Park, Squaw Canyon, SW of Agua Caliente County Park. 580 Comment
  SD181949  Ambrosia dumosa Jeannie Gregory, John F. Gregory, MA Kessler 2006-5-20 1991 San Diego Sawtooth Mountains Wilderness (BLM Land): Vallecitos Valley, S of Vallecito Stage Station County Park in northern edge of The Potrero, on NW base of the Sawtooth Mountains 523 Comment
  SD184599  Ambrosia dumosa Larry Hendrickson 2006-5-20 1446 San Diego Anza-Borrego Desert State Park. Vallecito Valley (formerly the Vallecito Ranch) 2.8 km south of County Hwy S-2 on the west side of the Sawtooth Mtns. 500 Comment
  SD185443  Ambrosia dumosa CRES Native Seed Gene Bank, J Dunn, S Spackman 2006-5-16 217 San Diego Vallecito, McCain Valley, N of Great Southern Overland Stage Route (S2), 1.6 mi W of Vallecito County Park, 2 mi S of Ghost Mountain. 502 Comment
  SD190878  Ambrosia dumosa Joni Ward, Wendy Hodgson, Dawn Goldman, Dave Martinez 2007-4-24 13 San Diego Mountain Springs Grade, 6 mi ENE of Jacumba, W of Interstate 8, 0.18 mi W of Imperial County line, 0.81 mi S of Devil's Canyon, W of stone corral, in wash at culvert, up drainage past spring. 740 Comment
  SD193562  Ambrosia dumosa CRES Native Seed Gene Bank, L Lippitt, S Anderson 2005-3-22 66 San Diego Anza-Borrego Desert State Park, San Felipe Wash, 1 mi SW of junction of Hwy 78 and Borrego Springs Rd, N of Old Kane Spring Rd at Lower Borrego Valley 259 Comment
  SD198167  Ambrosia dumosa Bill Sullivan 2007-4-27 295 San Diego Borrego Springs, Anza-Borrego Desert State Park, just N of County Road S-22 (Salton Seaway), in Font's Point Wash, 9 mi ENE of Borrego Springs 209 Comment
  SD198168  Ambrosia dumosa Bill Sullivan 2007-5-2 308 San Diego Borrego Springs, Anza-Borrego Desert State Park, 6.72 miles N of Borrego Springs, 2.85 miles NW of intersection of Di Giorgio Road and Coyote Way, on Coyote Canyon Jeep Trail, 400 yd northwest on east bank of Coyote Creek 305 Comment
  SD198169  Ambrosia dumosa Don Rideout, Ann Keenan 2007-3-26 13 San Diego Anza-Borrego Desert State Park, Coyote Creek, west side of Collins Valley, east of Box Canyon, approximately 2.5 miles south of Riverside County Line 416 Comment
  SD198170  Ambrosia dumosa Ruth R. Ehly 2008-4-5 17 San Diego Borrego Springs, 2 miles NNW of Christmas Circle, SE of the intersection of Yaqui Rd. and Pointing Rock Dr. 189 Comment
  SD198171  Ambrosia dumosa Melvin M. Sweet 2007-9-30 465 San Diego Anza-Borrego State Park; Vista del Malpais Overlook in the Borrego Badlands, ca 3 miles S of Hwy S22 305 Comment
  SD19876  Ambrosia dumosa Frank F. Gander 1937-11-21 4726 San Diego Across from gypsum mine, Fish Creek. Comment
  SD198946  Ambrosia dumosa Bill Sullivan 2008-3-6 364 San Diego North of Borrego Springs, Anza-Borrego Desert State Park, Coyote Canyon Jeep Trail 2.4 miles north of north end of DiGiorgio Road blacktop amd about 1.5 miles east of El Vado Historical Marker 232 Comment
  SD201297  Ambrosia dumosa Joe Barth 2007-12-4 870 San Diego Anza-Borrego Desert State Park, San Felipe Wash. About 10 miles SE of Borrego Springs. 0.8 mile NNW of the intersection of Borrego Valley Rd and Hwy 78. ~400m downstream of the huge dip in BV Rd that is called Texas Dip (George Bush?) on some maps. 182 Comment
  SD201298  Ambrosia dumosa Joe Barth 2007-12-4 878 San Diego Anza-Borrego Desert State Park, San Felipe Wash. About 10 miles SE of Borrego Springs. 1 mile NNW of the intersection of Borrego Valley Rd and Hwy 78. ~900m downstream of the huge dip in BV Rd that is called Texas Dip (George Bush?) on some maps. 180 Comment
  SD201299  Ambrosia dumosa Richard L. Breisch 2008-3-8 340 San Diego Anza-Borrego Desert State Park, 6 Km east of Canebrake, in Arroyo Tapiado, about 3.2 km north of junction with Overland Stage Route. 256 Comment
  SD201300  Ambrosia dumosa L. Louise Jee, L. E. Hendrickson, Kim Marsden 2008-3-31 266 San Diego Anza-Borrego Desert State Park, about 3.5 miles southwest of County Highway S-2, along north fork of Indian Valley road, 1 mile west of junction of north & south forks. SE corner of sec 16, T 15S R 7e SBB&M 452 Comment
  SD204055  Ambrosia dumosa Bill Sullivan, Tom Chester, Wayne P. Armstrong 2008-3-6 387 B San Diego Northeast corner of San Diego County and Anza-Borrego Desert State Park, about 1.25 miles south of Riverside County line and about .75 miles west of the Imperial County line 121 Comment
  SD204056  Ambrosia dumosa Jon P. Rebman, L. Hendrickson, S. Leininger, & V. Marshall 2010-3-4 18724 San Diego Anza-Borrego Desert State Park: vicinity of Split Mountain; along the North Fork of Fish Creek Wash near its junction with Mollusk Wash 230 Comment
  SD205156  Ambrosia dumosa Kim Marsden, L. Hendrickson, J.& R. Riolo, P. Larson, R. Ehly 2008-3-20 355 A San Diego Anza-Borrego Desert State Park, mouth of Glorietta Canyon, Yaqui Meadows, about 1A| miles SW of Borrego Springs Road intersection with Glorietta Canyon Road on jeep trail 358 Comment
  SD205157  Ambrosia dumosa Diana Lindsay, Anne Hoppe 2008-4-19 16 San Diego Anza-Borrego Desert State Park, E of Clark Dry Lake, SW of Santa Rosa Mountains, 3.6 mi NE of intersection of Rockhouse Cyn Truck Trail and Borrego Salton Seaway (S22), top of mud hills 182 Comment
  SD205158  Ambrosia dumosa Thomas E. Barckley, Lucia Barckley 2008-4-5 52 San Diego North East portion of Anza-Borrego State Park, 9 mi West North West of Salton City. 5.6 mls West of State Route 86 in Wonderstone Wash. 366 Comment
  SD205159  Ambrosia dumosa Kim Marsden, Larry Hendrickson, ABDSP Volunteer Botany Group 2008-3-24 291 San Diego Anza-Borrego Desert State Park; northern end of Hills of the Moon Wash in the Borrego Badlands, about 1.75 miles southeast (by air) of Fonts Point 170 Comment
  SD205160  Ambrosia dumosa Kim Marsden, L. L. Jee, L. Hendrickson, ABDSP Botany Group 2008-3-31 407 San Diego Anza-Borrego Desert State Park, north fork of Indian Canyon, about 5 miles west of County road S-22, all the way to the turn-around and about 1.5 miles northnortheast of Sombrero Peak 644 Comment
  SD205161  Ambrosia dumosa Jeannie Gregory, John Gregory 2008-3-7 2628 San Diego Anza-Borrego Desert State Park, Canyon Sin Nombre, 1 mi E of junction with Hwy S2, 11.7 mi NW of junction S2 and Interstate 8 at the town of Ocotillo. 285 Comment
  SD208659  Ambrosia dumosa Layla Aerne Hains, J. Gregory, M. A. Hawke, V. Marshall 2008-3-27 154 San Diego Anza-Borrego Desert State Park, along road to Canyon Sin Nombe, 1 mile E from intesection with Highway S2 (Sweeny Pass Rd), 11.5mi NW of I8 and town of Ocotillo 280 Comment
  SD208660  Ambrosia dumosa Nancy Nenow, Lawrence Glacy 2008-3-7 410 San Diego Anza-Borrego Desert State Park, Mountain Palm Springs, W side of Carrizo Valley, 500 yds SW of intersection with S-2 near parking lot. 270 Comment
  SD210654  Ambrosia dumosa Larry Hendrickson, Michael Bigelow 2010-5-6 4700 San Diego Anza-Borrego Desert State Park. Smuggler Canyon, east of Little Blair Valley. 2.1 air miles SW of Whale Peak summit, and 0.6 mile ESE of terminus of road to Pictographs trailhead. 996 Comment
  SD211958  Ambrosia dumosa Larry Hendrickson, Tom Beltran 2009-4-4 3693 San Diego Borrego Springs. Yaqui Meadows, Tom and Rose Beltran property. 2.2 miles SSE of intersection of County Road S-3 (Borrego Springs Rd.) and Anzio Drive, and 3.7 air miles NE of intersection of S-3 and State hwy. 78. 320 Comment
  SD211959  Ambrosia dumosa Larry Hendrickson 2009-3-1 3372 San Diego Anza-Borrego Desert State Park. Carrizo Wash, 1.6 surface miles SSW of intersection of County Rd. S-2 and access road to wash, and 1.0 mile north of Rockhouse Canyon. 775 Comment
  SD211960  Ambrosia dumosa Larry Hendrickson, Tom Beltran 2009-4-4 3656 A San Diego Borrego Valley. Yaqui Meadows, Tom and Rose Beltran property. 1.9 miles S of intersection of County Road S-3 (Borrego Springs Rd.) and Anzio Drive, and 3.7 air miles NE of intersection of S-3 and State hwy. 78. 323 Comment
  SD211961  Ambrosia dumosa Larry Hendrickson, ABDSP Botany Society members. 2009-3-23 3447 San Diego Anza-Borrego Desert State Park. Carrizo Canyon. At mouth of tributary canyon (Four Frogs Canyon) to the W of Carrizo Canyon, 0.6 mile W of intersection Mortero Canyon and S-2. 301 Comment
  SD214103  Ambrosia dumosa Bill Sullivan 2009-5-6 717 San Diego Anza-Borrego Desert State Park, 1.5 miles NNE of Rockhouse Canyon Road with Borrego Salton Seaway (county Road S22) south shore of Clark Dry Lake, 0.1 mile east of road 182 Comment
  SD214719  Ambrosia dumosa Bill Sullivan, Tom Chester 2009-3-7 602 San Diego Anza-Borrego Desert State Park, west side of Rockhouse Canyon Road 3 miles north of Borrego-Salton Seaway (County Road S22) near shore of Clark Dry Lake 177 Comment
  SD214720  Ambrosia dumosa Bill Sullivan 2009-3-11 614 San Diego Anza-Borrego Desert State Park, Cactus Garden, 3.85 mi. ESE of Highway 78 and Old Kane Spring Road, E of Harper Canyon, 0.2 mi. S of Old Kane Spring Road 180 Comment
  SD214721  Ambrosia dumosa Bill Sullivan 2009-3-11 610 San Diego Anza-Borrego Desert State Park, Cactus Garden, 0.9 mi. east of Highway 78 intersection with Old Kane Spring Road 277 Comment
  SD215796  Ambrosia dumosa Bill Sullivan 2009-4-1 657 San Diego Anza-Borrego Desert State Park, Arroyo Salado Wash/Truckhaven Trail, 1.2 mi SE of intersection with Borrego-Salton Seaway (County Road S22) 213 Comment
  SD215797  Ambrosia dumosa Larry Hendrickson 2009-3-29 3577 San Diego Anza-Borrego Desert State Park. Earthquake Valley, mouth of Crime Canyon (unofficial name). 1.5 air miles E of intersection of County Road S-2 and road to Blair Valley. 0.3 mile east of northern access road to Little Blair Valley. 894 Comment
  SD218524  Ambrosia dumosa Larry Hendrickson 2010-3-27 4579 San Diego Tierra Blanca Mountains, west of Carrizo Valley. Agua Caliente Regional Park, in Moonlight Canyon. S of campground. 0.9 air mile S of intersection of County Road S-2 and access road to park. 420 Comment
  SD219706  Ambrosia dumosa Larry Hendrickson, Jon Rebman, Victoria Marshall, Suzann Leininger 2010-3-3 4488 San Diego Anza-Borrego Desert State Park. NE-side of Vallecito Mountains. 3.6 air miles SW of intersection of State hwy. 78 and Split Mountain Rd., and 1.0 mile SW of intersection of Old Kane Springs Rd. and Youngs Rd. 167 Comment
  SD220931  Ambrosia dumosa Joe Barth 2011-3-5 1214 San Diego Lower Fish Creek Wash in Split Mountain (N of the well known anticline); 8.4 miles due S of State Hwy 78, 0.5 mile due W of county line. Anza-Borrego Desert State Park. 114 Comment
  SD220932  Ambrosia dumosa Joe Barth 2011-2-14 1113 San Diego W side of Borrego Springs Rd, ~80m N of Tilting T Dr. Town of Borrego Springs. 198 Comment
  SD220933  Ambrosia dumosa Joe Barth 2011-3-6 1252 San Diego Fish Creek Wash, 4.1 miles due W of county line, 12.75 miles due S of state hiway 78, ~0.2 mile upstream of west terminus of Loop Wash. Anza-Borrego Desert State Park. 248 Comment
  SD221852  Ambrosia dumosa Mike Bigelow 2010-12-10 327 San Diego Anza-Borrego Desert State Park; Rockhouse Canyon Road, NW Clark Dry Lake, 6 miles NNW of intersection with S-22 220 Comment
  SD221853  Ambrosia dumosa Joe Barth 2010-2-4 1076 San Diego Bank Wash ~1.9 miles W of county line. Ocotillo Wells State Vehicular Recreation Area. 91 Comment
  SD221854  Ambrosia dumosa Mike Bigelow 2011-3-11 356 San Diego Anza-Borrego Desert State Park; mouth of Corral Canyon, near Visitor's Center 245 Comment
  SD227224  Ambrosia dumosa Joe Barth 2011-4-15 1406 San Diego Anza Borrego Desert State Park. East base of Jacumba Mts, SW of the Volcanic Hills. NW of Piedras Grandes Mt. By RR trax and adjacent slopes and flats. 3 miles due W of Imperial County line. 4.7 miles due S of Hiway S2, 8.2 miles due N of Interstate 8. 557 Comment
  SD228425  Ambrosia dumosa Joe Barth 2011-4-4 1269 San Diego Jojoba Wash, Anza-Borrego Desert State Park. 2.25 miles due S of Hwy S2, 11 miles due N of Freeway I8, 3.8 miles due W of Imperial county line. Bajada WNW of the Volcanic Hills. 452 Comment
  SD233467  Ambrosia dumosa Joe Barth 2011-4-22 1509 San Diego Eastern Jacumba Mts, Anza-Borrego Desert State Park. About 9.5 miles W of town of Ocotillo in Imperial County. 3.2 miles due W of county line; 5.9 miles due N of interstate 8. On wind-blasted ridge above (N of) Palm Canyon; 0.4 mile W of Mortero Palms. 847 Comment
  SD235803  Ambrosia dumosa Kim Marsden, Anza-Borrego Desert State Park Botany Society 2009-3-23 604 San Diego Anza-Borrego Desert State Park; Carrizo Gorge, 4 miles SW of junction Hwy S-22 and Jojoba Wash 294 Comment
  SD242403  Ambrosia dumosa Melvin M. Sweet 2010-3-27 901 San Diego Anza-Borrego Desert State Park; 0.4 miles S of State Hwy 78, along the Mine Wash Jeep Trail, which intersects Hwy 78 2.8 miles east of County Route S3 (Yaqui Pass). 398 Comment
  SD24414  Ambrosia dumosa A. J. Stover 1939-3-25 230 San Diego Borrego Mud Hills Comment
  SD24619  Ambrosia dumosa A. J. Stover 1939-3-25 223 San Diego Oil Well, Borrego Desert. Comment
  SD247036  Ambrosia dumosa Bill Sullivan 2010-3-14 799 San Diego Anza-Borrego Desert State Park, Harper Wash, 2.42 SE of junction Old Kane Springs Road and Highway 78 299 Comment
  SD247774  Ambrosia dumosa Larry Hendrickson 2012-9-3 5922 San Diego Anza-Borrego Desert State Park, Blair Valley. 0.9 surface mile ESE of intersection of County Route S-2 and NW access road to primitive camping areas. 796 Comment
  SD248862  Ambrosia dumosa Mary Jo Churchwell 2010-3-19 290 San Diego Anza-Borrego Desert State Park; Coachwhip Canyon North; vicinity 0.28 mile N of junction with Highway S-22 305 Comment
  SD249903  Ambrosia dumosa Ian Cain, Emily Clayton 2010-3-14 1303 San Diego Anza-Borrego Desert State Park; 3.83 miles SWof Imperial Highway at San Diego/Imperial County border, near railroad tracks 1.0 mile NW of railroad bridge 559 Comment
  SD252486  Ambrosia dumosa Nancy Nenow 2011-4-18 1816 San Diego Anza-Borrego Desert State Park; along S-2 (Sweeny Pass Road) at Canyon Sin Nombre overlook; about 600 yards SE of junction with Canyon Sin Nombre Road 370 Comment
  SD252962  Ambrosia dumosa Ian Cain, Emily Clayton, Kris Schlech, Lindsay Willrick 2012-4-8 1728 San Diego Anza-Borrego Desert State Park, NW of Jacumba; along Carrizo Gorge Road 1.67 miles NNW of I-8 overpass; NNW of Round Mountain 821 Comment
  SD253591  Ambrosia dumosa Diana Lindsay, Marilyn Dickson 2009-4-20 69 San Diego Anza-Borrego Desert State Park; NW of Clark Dry Lake; S of Santa Rosa Mountains; 6.7 mi NNW of intersection of Rockhouse Cyn Rd and Borrego Salton Seaway (S22) 269 Comment
  SD253592  Ambrosia dumosa Larry Hendrickson 2013-11-9 6316 San Diego Anza-Borrego Desert State Park, east of Elephant Trees Area. 5.9 surface miles SSE of intersection of Split Mtn. Road and State Route 78 and 0.1 mile SSW of intersection of Split Mountain Road and access road to Elephant Trees. 34 Comment
  SD254797  Ambrosia dumosa Susan T Welker 1992-3-19 San Diego Adjacent to S-22, approx I(c) mile west of Borrego Springs 206 Comment
  SD258011  Ambrosia dumosa Nancy Nenow, Lawrence Glacy 2003-4-11 12 San Diego Anza-Borrego Desert State Park; Canebrake Canyon; 0.64 mile NW of junction Canebrake Canyon Road and Highway S-2; near Lois Neyenesch cabin on Tierra Blanca Lane. 312 Comment
  SD30765  Ambrosia dumosa Edith A. Purer 1933-3-25 4949 San Diego Borrego Valley. Comment
  SD30767  Ambrosia dumosa Edith A. Purer 1935-4-19 6287 San Diego Box Canyon, east of Banner. Comment
  SD5655  Ambrosia dumosa unknown 1920-4-1 San Diego Carrizo Creek. Comment
  SD85444  Ambrosia dumosa R. Mitchel Beauchamp, R. C. Pierce 1971-3-13 1804 San Diego North side of SD & AE Railroad track, 2 miles northwest of Dos Casbezas Station, Anza-Borrego Desert State Park. 600 Comment
  SDSU19479  Ambrosia dumosa Michael V. Niemeyer 2010-4-10 3 San Diego Anza Borrego Desert State Park. Carrizo Badlands Overlook, ca. 0.4 miles southeast of junction with road to Canyon Sin Nombre. 368 Comment
  SDSU21550  Ambrosia dumosa Paul C. Silva 1941-3-29 San Diego Foot of Palm Canyon, Borego Valley, Colorado Desert, San Diego County, California. 251 Comment
  SDSU6269  Ambrosia dumosa R. D. Harwood 1931-4-3 1637 San Diego San Felipe Valley. Comment
  SDSU7095  Ambrosia dumosa unknown San Diego Borrego. Comment
  SDSU7096  Ambrosia dumosa R. Dixon 1942-5-16 113 San Diego Jacumba, S slope Sombrero Butte. Comment
  SEINET2043628 Image available Ambrosia dumosa R. M. Beauchamp, R. C. Pierce 1971-3-13 1804 San Diego North side of Sd & AE RR track, 2 mi NW of Dos Cabezas Station, Anza-Borrego Desert State Park 600 Comment
  SEINET2059789 Image available Ambrosia dumosa Joni Ward, Wendy Hodgson, Dawn Goldman, Dave Martinez 2007-4-24 dbg- 13 San Diego Mountain Springs Grade, 6 mi ENE of Jacumba, W of Interstate 8, 0.18 mi W of Imperial County line, 0.87 mi S of Devil's Canyon, W of stone corral, in wash at culvert, up drainage past spring. 741 Comment
  SEINET895752  Ambrosia dumosa Jon P. Rebman, N. Nenow, C. Glacy, G. & M. Brooks, Gonyer 2005-1 11259 San Diego Anza-Borrego Desert State Park: west of Ocotillo; eastern base of Jacumba Mountains; vicinity of Mortero Palms northwest of Dos Cabezas Spring. 595 Comment
  UC1118436  Ambrosia dumosa A. E. Wieslander 1931-4-3 171 San Diego San Felipe Wash; Vallecito Quad. 304 Comment
  UC1287128  Ambrosia dumosa C. L. Hitchcock 1966-3-17 24235 San Diego 6 mi w Ocotillo Well Comment
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Jan 8 2013
  UC1536876  Ambrosia dumosa G. H. True Jr. 1935-4-23 249 San Diego Vallecitos; Campbell Ranch 548 Comment
  UC34482  Ambrosia dumosa H. M. Hall 1902-4-12 2855 San Diego at, (in the Lower Sonoran Zone, w borders of Colorado Desert) Coyote Canyon; Colorado Desert 152 Comment
  UC488883  Ambrosia dumosa C. V. Meyer 1927-4-9 55 San Diego Narrows; San Felipe Wash Comment
  UC88776  Ambrosia dumosa K. Brandegee 1899-5-1 San Diego Mason's; Colorado Desert Comment
  UC88777  Ambrosia dumosa T. S. Brandegee 1896-4-11 San Diego Agua Caliente Comment
  UC88778  Ambrosia dumosa T. S. Brandegee 1894-4-28 San Diego Boregos Springs Comment
  UC896726  Ambrosia dumosa Alice Eastwood 1913-4-14 2730 San Diego Yaqui Wells; Colorado Desert Comment
  UCD128793  Ambrosia dumosa C. L. Hitchcock 1966-3-17 24235 San Diego 6 mi. w. of Ocotillo Well. Comment
  UCD128803  Ambrosia dumosa F. Seaman 1972-3-23 69 -4 San Diego 3 miles north of Ocotillo on State Highway S-2. Comment
  UCD128805  Ambrosia dumosa T. I. Storer; J. E. Law 1925-3-29 354 San Diego near Guatay. Comment
  UCR202789  Ambrosia dumosa Melvin M. Sweet 2007-9-30 465 San Diego Sonoran (Colorado) Desert, Anza-Borrego State Park; Vista del Malpais Overlook in the Borrego Badlands, c. 3 miles south of Hwy S22. Square F27, San Diego Co. Plant Atlas. 305 Comment
  UCR227990  Ambrosia dumosa Jon P. Rebman, Larry Hendrickson, Suzann M. Leininger, Victoria Marshall 2010-3-4 18724 San Diego Sonora (Colorado) Desert, Anza-Borrego Desert State Park, vicinity of Split Mountain, along the North Fork of Fish Creek Wash near its junction with Mollusk Wash. Square: L28 230 Comment
  UCR263918  Ambrosia dumosa Larry Hendrickson, Tom Beltran 2009-4-4 3656 A San Diego Sonoran (Colorado) Desert, Borrego Valley, Yaqui Meadows, Tom and Rose Beltran property, 1.9 miles south of intersection of County Road S-3, Borrego Springs Road, and Anzio Drive, and 3.7 air miles northeast of intersection of S-3 and State Hwy 78 323 Comment
  UCSB39036  Ambrosia dumosa Jorgensen, Jan 1982-3-5 San Diego 30 kilometers south on road S-2 after highway 78 intersection; Anza-Borrego Desert State Park 400 Comment
  UCSB52974  Ambrosia dumosa Pritchett, David; Fulton, M. 1986-3-9 San Diego Off County Road S-2 ca. 10 mi. SE of Borrego Palm Canyon 304 Comment
  LA202916  Ambrosia dumosa M. Zaitlin; 1951-4-24 sn San Diego Anza Desert Comment
  RSA0065402  Ambrosia dumosa William Gilbert 1969-4-24 s.n. San Diego Near Warner Springs, California Highway 79. Comment
  SDSU7097  Ambrosia dumosa Robert B. Sargeant 1966-3-27 San Diego Panoramic Point, south of Borrego-Palm Cayon campground, Anza-Borregp Desert State Park. Comment
  SEINET10725763  Ambrosia dumosa David B. Dunn 1941-4-11 Dunn 1123 San Diego Borrego Desert valley floor by the deserted ranch on way to Palm and Hell Hole Canyons. In Anza-Borrego Desert Sate Park. Comment
  SEINET5710313  Ambrosia dumosa Alma L. Moldenke, Harold N. Moldenke 1976-1 30621 San Diego Borrego Springs, Colorado Desert.; Borrego Springs Comment
  SEINET9118662  Ambrosia dumosa Donald Myrick 1965-1 1030 San Diego Near Borrego Springs; N Colorado Desert. 182 Comment
  UCD128802  Ambrosia dumosa W. W. Robbins 1939-12-24 s.n. San Diego SE part of county. Comment



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