Search Results — 157 specimen records retrieved (156 records with coordinates)
Results for search: County=IMPERIAL; Source=All; Collector=Porter;   
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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/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  RSA767528  Abronia villosa J. Mark Porter 2003-4-10 13491 .23 Imperial Imperial Dunes [Algodones Dunes], 1.62 miles northeast [59.49 degrees] of the Gecko Campground loop of Imperial Sand Dunes Recreation Area accessed via California Highway 78. Comment
  SEINET3828034  Abronia villosa J. Mark Porter, O. Mistretta, S Hobbs 2002-1 13391 Imperial IMperial Recreation Area ( Algodones Dunes) , ca 0.5 mi WSW of Ogilby. W of County road S34 95 Comment
  RSA767482  Abronia villosa var. villosa J. Mark Porter, Orlando Mistretta, S. Hobbs 2002-3-2 13391 Imperial Imperial Dunes Recreation Area [Algodones Dunes], 0.5 miles west-southwest of Ogilby, west of County road S34. 95 Comment
  RSA767463  Achyronychia cooperi J. M. Porter, O. Mistretta, S. Hobbs 2002-3-2 13400 Imperial Imperial Dunes Recreation Area [Algodones Dunes], 0.5 miles west-southwest of Ogilby, west of County road S34. 95 Comment
  RSA767530  Achyronychia cooperi J. M. Porter 2003-4-10 13491 .24 Imperial Imperial Dunes [Algodones Dunes], 1.62 miles northeast [59.49 degrees] of the Gecko Campground loop of Imperial Sand Dunes Recreation Area accessed via California Highway 78. Comment
  SEINET3828054  Achyronychia cooperi J. Mark Porter, O. Mistretta & S. Hobbs 2002-1 13400 Imperial Imperial Dunes Recreation Area (Algodones Dunes), ca 0.5 mi WSW of Ogilby, W of County road S34 95 Comment
  RSA767466  Ambrosia dumosa J. Mark Porter, Orlando Mistretta, S. Hobbs 2002-3-2 13404 Imperial Imperial Dunes Recreation Area [Algodones Dunes], 0.5 miles west-southwest of Ogilby, west of County road S34. 95 Comment
  SEINET3829077  Ambrosia dumosa J. Mark Porter, O. Mistretta, S. Hobbs 2002-1 13404 Imperial Imperial Dunes Recreation area. (Algodones Dunes) ca. 0.5 mi. WSW of Ogilby, W of Country road S 34. 95 Comment
  CAS-BOT-BC272854  Ambrosia monogyra J. Mark Porter; O. Mistretta; S. Hobbs 2002-3-2 13410 Imperial Imperial Dunes Recreation Area (Algodones Dunes), ca. 0.5 mi WSW of Ogilby, W of County road S34 95 Comment
  RSA767460  Aristida californica J. M. Porter, O. Mistretta, S. Hobbs 2002-3-2 13397 Imperial Imperial Dunes Recreation Area [Algodones Dunes], 0.5 miles west-southwest of Ogilby, west of County road S34 95 Comment
  UCR200254  Asclepias albicans J. M. Porter, Orlando Mistretta 2003-6-5 13615 Imperial Colorado Desert; Chocolate-Chuckwalla Mountains region, Chocolate Mountains, Chocolate Mountains Bombing and Gunnery Range. Unnamed canyon, south of Salt Creek, accessed via Siphon 21 of the Coachella Canal, fork running southeast 412 Comment
  SD250420  Asclepias subulata J. Mark Porter, Susan Hobbs, Orlando Mistretta 2003-3-17 Imperial Imperial Sand Dunes National Recreation Area. Growing on the leeward side of deep sand dunes. Comment
  RSA767472  Astragalus peirsonii J. Mark Porter, O. Mistretta, S. Hobbs 2002-3-2 13405 Imperial Imperial Dunes Recreation Area [Algodones Dunes], 0.82 miles southwest [202.8 degrees] of Imperial Dunes Recreation Area exit from Interstate 8. 49 Comment
  RSA767473  Astragalus peirsonii J. Mark Porter, O. Mistretta, S. Hobbs 2002-3-2 13405 Imperial Imperial Dunes Recreation Area [Algodones Dunes], 0.82 miles southwest [202.8 degrees] of Imperial Dunes Recreation Area exit from Interstate 8. 49 Comment
  RSA767496  Astragalus peirsonii J. Mark Porter 2003-4-8 13491 .02 Imperial Imperial Dunes (Algodones Dunes), 1.9 miles south-west [209.75 degrees] of Imperial Sand Dunes Recreation Area exit on Interstate Highway 8, barchan dunes just west of the large transverse dunes. Comment
  RSA767497  Astragalus peirsonii J. Mark Porter 2003-4-8 13491 .03 Imperial Imperial Dunes (Algodones Dunes), 4.8 miles north-west [293.29 degrees] of Imperial Sand Dunes Recreation Area exit on Interstate Highway 8, barchan dunes just west of the large transverse dunes. Comment
  RSA767501  Astragalus peirsonii J. Mark Porter 2003-4-8 13491 .07 Imperial Imperial Dunes (Algodones Dunes), 3.2 miles west north-west [280.62 degrees] of Imperial Sand Dunes Recreation Area exit on Interstate Highway 8, barchan dunes just west of the large transverse dunes. Comment
  RSA767502  Astragalus peirsonii J. Mark Porter 2003-3-20 13491 .08 Imperial Imperial Dunes (Algodones Dunes), 4.4 miles west north-west [291.38 degrees] of Imperial Sand Dunes Recreation Area exit on Interstate Highway 8, barchan dunes just west of the large transverse dunes. Comment
  RSA767515  Astragalus peirsonii J. Mark Porter 2003-3-20 13491 .09 Imperial Imperial Dunes [Algodones Dunes], 3.6 miles west-northwest [288.56 degrees] of Imperial Sand Dunes Recreation Area exit on Interstate Highway 8 Comment
  RSA767518  Astragalus peirsonii J. Mark Porter 2003-3-20 13491 .12 Imperial Imperial Dunes [Algodones Dunes], 4.7 miles west-northwest [294.35 degrees] of Imperial Sand Dunes Recreation Area exit on Interstate Highway 8 Comment
  RSA767519  Astragalus peirsonii J. Mark Porter 2003-3-20 13491 .13 Imperial Imperial Dunes [Algodones Dunes], 6.48 miles northwest [333.39 degrees] of junction of Coachella Canal access road and California Highway 78 Comment
  RSA767520  Astragalus peirsonii J. Mark Porter 2003-3-20 13491 .14 Imperial Imperial Dunes [Algodones Dunes], 3.73 miles northwest [290 degrees] of Imperial Sand Dunes Recreation Area exit on Interstate Highway 8 Comment
  RSA767521  Astragalus peirsonii J. Mark Porter 2003-3-20 13491 .15 Imperial Imperial Dunes [Algodones Dunes], 3.73 miles northwest [290 degrees] of Imperial Sand Dunes Recreation Area exit on Interstate Highway 8 Comment
  RSA767522  Astragalus peirsonii J. Mark Porter 2003-4-7 13491 .16 Imperial Imperial Dunes [Algodones Dunes], 4.16 miles north-northwest [344.94 degrees] of junction of Coachella Canal access road and California Highway 78 Comment
  RSA767523  Astragalus peirsonii J. Mark Porter 2003-4-9 13491 .17 Imperial Imperial Dunes [Algodones Dunes], 1.9 miles northwest of Interstate Highway 8 Comment
  RSA767524  Astragalus peirsonii J. Mark Porter 2003-4-9 13491 .18 Imperial Imperial Dunes [Algodones Dunes], 2.2 miles northwest of Interstate Highway 8 Comment
  RSA767525  Astragalus peirsonii J. Mark Porter 2003-4-9 13491 .19 Imperial Imperial Dunes [Algodones Dunes], 3.44 miles west-northwest [284.25 degrees] of the Imperial Sand Dunes Recreation Area exit on Interstate Highway 8 Comment
  RSA767526  Astragalus peirsonii J. Mark Porter 2003-4-10 13491 .20 Imperial Imperial Dunes [Algodones Dunes], 1.46 miles northeast [59.0 degrees] of the Gecko Campground loop of Imperial Sand Dunes Recreation Area accessed via California Highway 78 Comment
  RSA767527  Astragalus peirsonii J. Mark Porter 2003-4-10 13491 .21 Imperial Imperial Dunes [Algodones Dunes], 1.62 miles northeast [59.49 degrees] of the Gecko Campground loop of Imperial Sand Dunes Recreation Area accessed via California Highway 78. Comment
  RSA767593  Astragalus peirsonii J. Mark Porter 2003-3-4 13484 Imperial Imperial Dunes (Algodones Dunes) about 1.9 miles northwest of Interstate Highway 8 Comment
  RSA767594  Astragalus peirsonii J. Mark Porter 2003-3-4 13485 Imperial Imperial Dunes (Algodones Dunes) about 2.2 miles northwest of Interstate Highway 8 Comment
  SEINET3828025  Astragalus peirsonii J. Mark Porter, O. Mistretta & S. Hobbs 2002-1 Imperial Comment
  SEINET3829084  Astragalus peirsonii J. Mark Porter 2003-1 Imperial Comment
  CAS-BOT-BC172819  Baileya pauciradiata J. Mark Porter; O. Mistretta; S. Hobbs 2002-3-2 13390 Imperial Imperial Dunes Recreation Area (Algodones Dunes), ca. 0.5 mi WSW of Ogilby, W of County road S34 95 Comment
  RSA676321  Baileya pauciradiata J. Mark Porter, Susan Hobbs, Orlando Mistretta 2003-2-20 s.n. Imperial Algodones Dunes. Imperial Sand Dunes National Recreation Area, Algodones Wilderness Comment
  RSA767481  Baileya pauciradiata J. Mark Porter, Orlando Mistretta, S. Hobbs 2002-3-2 13390 Imperial Imperial Dunes Recreation Area [Algodones Dunes], 0.5 miles west-southwest of Ogilby, west of County road S34. 95 Comment
  SEINET3828035  Baileya pauciradiata J. Mark Porter, O. Mistretta & S. Hobbs 2002-1 13390 Imperial Imperial Dunes Recreation Area ( Algodones Dunes) ca. 0.5mi WSW of Ogilby, W of County road S34 95 Comment
  RSA676140  Baileya pleniradiata J. Mark Porter, Susan Hobbs, Orlando Mistretta 2003-2-20 s.n. Imperial Algodones Dunes. Imperial Sand Dunes National Recreation Area, Algodones Wilderness Comment
  SD250433  Baileya pleniradiata J. Mark Porter, Susan Hobbs, Orlando Mistretta 2003-2-20 Imperial Algodones Dunes. Imperial Sand Dune National Recreation Area, Algodones Wilderness. Comment
  RSA767459  Brassica tournefortii J. Mark Porter, O. Mistretta, S. Hobbs 2002-3-2 13396 Imperial Imperial Dunes Recreation Area [Algodones Dunes], 0.5 miles west-southwest of Ogilby, west of County road S34 95 Comment
  SEINET3828056  Brassica tournefortii J. Mark Porter, O. Mistretta & S. Hobbs 2002-1 13396 Imperial Imperial Dunes Recreation Area (Algodones DUnes), ca 0.5 mi WSW of Ogibly. W of County road S34 95 Comment
  RSA767531  Camissonia boothii J. Mark Porter 2003-4-10 13491 .25 Imperial Imperial Dunes [Algodones Dunes], 1.62 miles northeast [59.49 degrees] of the Gecko Campground loop of Imperial Sand Dunes Recreation Area accessed via California Highway 78. Comment
  RSA767478  Camissonia claviformis subsp. yumae J. Mark Porter, Orlando Mistretta, S. Hobbs 2002-3-2 13387 Imperial Imperial Dunes Recreation Area [Algodones Dunes], 0.5 miles west-southwest of Ogilby, west of County road S34. 95 Comment
  SEINET3828038  Camissonia claviformis subsp. yumae J. Mark Porter, O. Mistretta & S. Hobbs 2002-1 13387 Imperial Imperial Dunes Recreation Area( Algodones Dunes), ca 0.5 mi WSW of Ogilby, W. of County road S34 95 Comment
  RSA767599  Cercidium floridum J. Mark Porter 2003-3-4 13489 Imperial Imperial Dunes (Algodones Dunes) about 2.2 miles northwest of Interstate Highway 8 Comment
  UCR200261  Chorizanthe brevicornu var. brevicornu J. M. Porter, Orlando Mistretta 2003-6-5 13617 Imperial Colorado Desert; Chocolate-Chuckwalla Mountains region, Chocolate Mountains, Chocolate Mountains Bombing and Gunnery Range. Unnamed canyon, south of Salt Creek, accessed via Siphon 21 of the Coachella Canal, fork running southeast 412 Comment
  RSA767516  Croton wigginsii J. Mark Porter 2003-3-20 13491 .10 Imperial Imperial Dunes [Algodones Dunes], 4.5 miles west-northwest [294.47 degrees] of Imperial Sand Dunes Recreation Area exit on Interstate Highway 8 Comment
  RSA767592  Croton wigginsii J. Mark Porter 2003-3-4 13483 Imperial Imperial Dunes (Algodones Dunes) about 1.9 miles northwest of Interstate Highway 8 Comment
  SEINET3828044  Croton wigginsii J. Mark Porter 2003-1 13491 .10 Imperial Imperial Dunes (Algodones Dunes), 4.5 mi WNW (294.47 degrees) of Imperial Sand Dunes Recreation Area exit on Interstate Highway 8, Barchan dunes just west of the large transverse dunes Comment
  SEINET3829071  Croton wigginsii J. Mark Porter 2003-1 13483 Imperial Imperial Dunes (Algodones Dunes), ca. 1.9 mi NW of Interstate Highway 8. Comment
  RSA0013126  Cryptantha angustifolia J. Mark Porter, Sarah De Groot 2012-4-12 15088 Imperial Palm Canyon Wash, 6.2 mi W of Ocotillo, N of Interstate 8 and S of Dos Cabezas Road, near abandoned railroad, at the eastern margin of broad wash. 384 Comment
  RSA0013127  Cryptantha barbigera J. Mark Porter, Sarah De Groot 2012-4-12 15088 .2 Imperial Palm Canyon Wash, 6.2 mi W of Ocotillo, N of Interstate 8 and S of Dos Cabezas Road, near abandoned railroad, at the eastern margin of broad wash. 384 Comment
  SEINET3828036  Cryptantha maritima J. Mark Porter, O. Mistretta & S. Hobbs 2002-1 13389 Imperial Imperial Dunes Recreational Area ( Algodones Dunes) ca. 0.5 mi WSW of Ogilby, W of County road S34. 95 Comment
  RSA0013130  Cryptantha micrantha J. Mark Porter, Sarah De Groot 2012-4-12 15083 Imperial Palm Canyon Wash, 5.5 mi W of Ocotillo, N of Interstate 8 and S of Dos Cabezas Road, near abandoned railroad, at the southern margin of broad wash. 347 Comment
  RSA676132  Dalea J. Mark Porter, Susan Hobbs, Orlando Mistretta 2003-2-20 s.n. Imperial Algodones Dunes. Imperial Sand Dunes National Recreation Area, Algodones Wilderness Comment
  RSA767477  Dalea mollis J. Mark Porter, O. Mistretta, S. Hobbs 2002-3-2 13386 Imperial Imperial Dunes Recreation Area [Algodones Dunes], 0.5 miles west-southwest of Ogilby, west of County road S34. 95 Comment
  SEINET3828039  Dalea mollis J. Mark Porter, O. Mistretta & S. Hobbs 2002-1 13386 Imperial Imperial Dunes Recreation Area ( Algodones Dunes) ca. 0.5 mi WSW of Ogilby, W of County road S34 95 Comment
  RSA767503  Datura discolor J. Mark Porter, Orlando Mistretta, S. Hobbs 2002-3-2 13411 Imperial Imperial Dunes Recreation Area [Algodones Dunes], 0.5 miles west-southwest of Ogilby, west of County road S34. 95 Comment
  RSA676135  Ditaxis lanceolata J. Mark Porter, Susan Hobbs, Orlando Mistretta 2003-2-20 s.n. Imperial Algodones Dunes. Imperial Sand Dunes National Recreation Area, Algodones Wilderness Comment
  UCR200256  Ditaxis lanceolata J. M. Porter, Orlando Mistretta 2003-6-5 13616 Imperial Colorado Desert; Chocolate-Chuckwalla Mountains region, Chocolate Mountains, Chocolate Mountains Bombing and Gunnery Range. Unnamed canyon, south of Salt Creek, accessed via Siphon 21 of the Coachella Canal, fork running southeast 412 Comment
  SD250493  Ditaxis serrata var. serrata J. Mark Porter, Susan Hobbs, Orlando Mistretta 2003-2-20 Imperial Algodones Dunes. Imperial Sand Dunes National Recreation Area, Algodones Wilderness. Comment
  RSA0013128  Dithyrea californica J. Mark Porter, Sarah J. De Groot 2012-4-12 15085 Imperial Palm Canyon Wash, 5.5 mi W of Ocotillo, N of Interstate 8 and S of Dos Cabezas Road, near abandoned railroad, at the southern margin of broad wash. 347 Comment
  UCR200262  Dyssodia porophylloides J. M. Porter, Orlando Mistretta 2003-6-5 13619 Imperial Colorado Desert; Chocolate-Chuckwalla Mountains region, Chocolate Mountains, Chocolate Mountains Bombing and Gunnery Range. Unnamed canyon, south of Salt Creek, accessed via Siphon 21 of the Coachella Canal, fork running southeast 412 Comment
  RSA0013121  Emmenanthe penduliflora J. Mark Porter, Sarah J. De Groot 2012-4-12 15093 Imperial Palm Canyon Wash, 6.2 mi W of Ocotillo, N of Interstate 8 and S of Dos Cabezas Road, near abandoned railroad, at the eastern margin of broad wash. 384 Comment
  RSA767469  Encelia farinosa J. Mark Porter, Orlando Mistretta, S. Hobbs 2002-3-2 13409 Imperial Imperial Dunes Recreation Area [Algodones Dunes], 0.5 miles west-southwest of Ogilby, west of County road S34. 95 Comment
  SEINET3828046  Encelia farinosa J. Mark Porter, O. Mistretta & S. Hobbs 2002-1 13409 Imperial Imperial Dunes Recreational Area (Algodones DUnes), ca. 0.5 mi WSW of Ogilby, W of County road S34 95 Comment
  RSA676139  Ephedra trifurca J. M. Porter, Susan Hobbs, Orlando Mistretta 2003-3-17 s.n. Imperial Algodones Dunes. Imperial Sand Dunes National Recreation Area, Patton Valley Comment
  RSA767458  Ephedra trifurca J. M. Porter, O. Mistretta, S. Hobbs 2002-3-2 13395 Imperial Imperial Dunes Recreation Area [Algodones Dunes], ca. 0.5 miles west-southwest of Ogilby, west of County road S34. 95 Comment
  RSA767591  Ephedra trifurca J. M. Porter 2003-3-4 13482 Imperial Imperial Dunes (Algodones Dunes) about 1.9 miles northwest of Interstate Highway 8. Comment
  RSA767597  Ephedra trifurca J. M. Porter 2003-3-4 13487 Imperial Imperial Dunes (Algodones Dunes) about 2.2 miles northwest of Interstate Highway 8. Comment
  SD250392  Ephedra trifurca J. Mark Porter, Susan Hobbs, Orlando Mistretta 2003-3-17 Imperial Algodones Dunes. Imperial Sand Dunes National Recreation Area, Patton Valley. Comment
  SEINET3828029  Ephedra trifurca J. Mark Porter, O. Mistretta & S. Hobbs 2002-1 13395 Imperial Imperial Dunes Reacreation Area (Algodones Dunes), 0.5 mi WSW of Ogilby, W of Country Road S34 95 Comment
  SEINET3829070  Ephedra trifurca J. Mark Porter 2003-1 13482 Imperial Imperial Dunes (Algodones Dunes), ca. 1.9 mi NW of Interstate Highway 8, barchan dunes just west of the large transverse dunes. Comment
  SEINET3829083  Ephedra trifurca J. Mark Porter 2003-1 13487 Imperial Imperial Dunes (Algodones Dunes), ca 2.2 mi NW of Interstate Highway 8, shallow dunes between the large transverse dunes. Comment
  RSA0014474  Eriastrum eremicum J. Mark Porter 2012-3-30 15078 Imperial About 3 mi W of Ocotillo, N of Interstate 8 and S of Dos Cabezas Road, near abandoned railroad, at the W foot of Sugarloaf Mountain. 278 Comment
  SD253524  Eriastrum eremicum J. Mark Porter 2012-3-30 15078 Imperial Ca. 3.0 miles west of Ocotillo, north of Interstate 8 and south of Dos Cabezas Road, near abandoned railroad at the west foot of Sugarloaf Mountains. 85 Comment
  SD253525  Eriastrum eremicum J. Mark Porter 2012-3-30 15078 Imperial Ca. 3.0 miles west of Ocotillo, north of Interstate 8 and south of Dos Cabezas Road, near abandoned railroad at the west foot of Sugarloaf Mountain. 277 Comment
  CAS-BOT-BC309814  Eriastrum eremicum subsp. eremicum J. Mark Porter 2012-3-30 15078 Imperial About 3 mi W of Ocotillo, N of Interstate 8 and S of Dos Cabezas Road, near abandoned railroad, at the W foot of Sugarloaf Mountain 278 Comment
  RSA767589  Eriogonum deserticola J. Mark Porter 2003-3-4 13480 Imperial Imperial Dunes (Algodones Dunes) about 1.9 miles northwest of Interstate Highway 8 Comment
  RSA0013123  Eriogonum reniforme J. Mark Porter, Sarah J. De Groot 2012-4-12 15091 Imperial Palm Canyon Wash, 6.2 mi W of Ocotillo, N of Interstate 8 and S of Dos Cabezas Road, near abandoned railroad, at the eastern margin of broad wash. 384 Comment
  RSA0013132  Eriogonum reniforme J. Mark Porter, Sarah J. De Groot 2012-4-12 15081 Imperial Palm Canyon Wash, 5.5 mi W of Ocotillo, N of Interstate 8 and S of Dos Cabezas Road, near abandoned railroad, at the southern margin of broad wash. 347 Comment
  RSA0013120  Eriophyllum wallacei J. Mark Porter, Sarah J. De Groot 2012-4-12 15094 Imperial Palm Canyon Wash, 6.2 mi W of Ocotillo, N of Interstate 8 and S of Dos Cabezas Road, near abandoned railroad, at the eastern margin of broad wash. 384 Comment
  RSA767456  Euphorbia micromera J. Mark Porter, Orlando Mistretta, S. Hobbs 2002-3-2 13393 Imperial Imperial Dunes Recreation Area [Algodones Dunes], 0.5 miles west-southwest of Ogilby, west of County road S34. 95 Comment
  SEINET3828057  Euphorbia micromera J. Mark Porter, O Mistretta & S Hobbs 2002-1 13393 Imperial Imperial Dunes Recreation Area ( Algodoned Dunes), ca 0.5 mi WSW of Ogilby, W of County road S34 95 Comment
  CAS-BOT-BC167348  Fagonia laevis Duncan M. Porter 1961-12-29 755 Imperial Above Colorado River, ca. 1/2 mile below Laguna Dam Comment
  UCR200255  Fagonia laevis J. M. Porter, Orlando Mistretta 2003-6-5 13623 Imperial Colorado Desert; Chocolate-Chuckwalla Mountains region, Chocolate Mountains, Chocolate Mountains Bombing and Gunnery Range. Unnamed canyon, south of Salt Creek, accessed via Siphon 21 of the Coachella Canal, fork running southeast 412 Comment
  RSA767475  Geraea canescens J. M. Porter, Orlando Mistretta, S. Hobbs 2002-3-2 13384 Imperial Imperial Dunes Recreation Area [Algodones Dunes], 0.5 miles west-southwest of Ogilby, west of County road S34. 95 Comment
  SEINET3828058  Geraea canescens J. Mark Porter, O. Mistretta & S. Hobbs 2002-1 13384 Imperial Imperial Dunes Recreation Area (Algodones Dunes), ca 0.5 mi WSW of Ogilby, W of County road S34 95 Comment
  RSA676133  Helianthus niveus subsp. tephrodes J. M. Porter, Susan Hobbs, Orlando Mistretta 2003-3-17 s.n. Imperial Algodones Dunes. Imperial Sand Dunes National Recreation Area. Comment
  RSA767500  Helianthus niveus subsp. tephrodes J. M. Porter 2003-4-8 13491 .06 Imperial Imperial Dunes (Algodones Dunes), 1.4 miles west south-west [234.64 degrees] of Imperial Sand Dunes Recreation Area exit on Interstate Highway 8, barchan dunes just west of the large transverse dunes. Comment
  RSA767517  Helianthus niveus subsp. tephrodes J. M. Porter 2003-3-20 13491 .11 Imperial Imperial Dunes [Algodones Dunes], 4.5 miles west-northwest [294.47 degrees] of Imperial Sand Dunes Recreation Area exit on Interstate Highway 8 Comment
  RSA767602  Helianthus niveus subsp. tephrodes J. M. Porter 2003-4-8 13491 .01 Imperial Imperial Dunes (Algodones Dunes), 1.9 miles south-west [209.75 degrees] of Imperial Sand Dunes Recreation Area exit on Interstate Highway 8, barchan dunes just west of the large transverse dunes. Comment
  SEINET3828043  Helianthus niveus subsp. tephrodes J. Mark Porter 2003-1 13491 .01 Imperial Imperial Dunes ( Algodones Dunes), 1.9 mi SW ( 209.75 degrees) of Imperial San Dunes Recreation Area exit on Intertate Highway 8, barchan dunes just west of the large transverse dunes. Comment
  RSA767474  Hesperocallis undulata J. Mark Porter, Orlando Mistretta, S. Hobbs 2002-3-2 13402 Imperial Imperial Dunes Recreation Area [Algodones Dunes], 0.5 miles west-southwest of Ogilby, west of County road S34 95 Comment
  SD255057  Hilaria rigida J. Mark Porter, Susan Hobbs, Orlando Mistretta 2003-2-20 Imperial Algodones Dunes. Imperial Sand Dunes National Recreation Area, Algodones Wilderness. Comment
  SD255058  Hilaria rigida J. Mark Porter, Susan Hobbs, Orlando Mistretta 2003-3-17 Imperial Algodones Dunes. Imperial Sand Dunes National Recreation Area. Comment
  SEINET3828045  Hymenoclea monogyra J. Mark Porter, O. Mistretta & S. Hobbs 2002-1 13410 Imperial Imperial Dunes Recreation Area (Algodones Dunes), ca. 0.5 mi WSW of Ogilby W. of County road S34 95 Comment
  RSA767470  Hymenoclea salsola J. M. Porter, Orlando Mistretta, S. Hobbs 2002-3-2 13410 Imperial Imperial Dunes Recreation Area [Algodones Dunes], 0.5 miles west-southwest of Ogilby, west of County road S34. 95 Comment
  CAS-BOT-BC219715  Hyptis emoryi J. Mark Porter; O. Mistretta; S. Hobbs 2002-3-2 13408 Imperial Imperial Dunes Recreation Area (Algodones Dunes), ca. 0.5 mi WSW of Ogilby, W of County road S34 95 Comment
  RSA767468  Hyptis emoryi J. Mark Porter, Orlando Mistretta, S. Hobbs 2002-3-2 13408 Imperial Imperial Dunes Recreation Area [Algodones Dunes], 0.5 miles west-southwest of Ogilby, west of County road S34. 95 Comment
  UCR200263  Hyptis emoryi J. M. Porter, Orlando Mistretta 2003-6-5 13624 Imperial Colorado Desert; Chocolate-Chuckwalla Mountains region, Chocolate Mountains, Chocolate Mountains Bombing and Gunnery Range. Unnamed canyon, south of Salt Creek, accessed via Siphon 21 of the Coachella Canal, fork running southeast 412 Comment
Read comments
Jan 23 2012
  CAS-BOT-BC171066  Larrea tridentata J. Mark Porter; O. Mistretta; S. Hobbs 2002-3-2 13403 Imperial Imperial Dunes Recreation Area (Algodones Dunes), ca. 0.5 mi WSW of Ogilby, W of county road S34. 95 Comment
  RSA676138  Larrea tridentata J. Mark Porter, Susan Hobbs, Orlando Mistretta 2003-3-17 s.n. Imperial Algodones Dunes. Imperial Sand Dunes National Recreation Area, Patton Valley Comment
  RSA767465  Larrea tridentata J. Mark Porter, Orlando Mistretta, S. Hobbs 2002-3-2 13403 Imperial Imperial Dunes Recreation Area [Algodones Dunes], 0.5 miles west-southwest of Ogilby, west of County road S34. 95 Comment
  RSA767596  Larrea tridentata J. Mark Porter 2003-3-4 13486 Imperial Imperial Dunes (Algodones Dunes) about 2.2 miles northwest of Interstate Highway 8. Comment
  SEINET3828053  Larrea tridentata J. Mark Porter, O. Mistretta & S. Hobbs 2002-1 13403 Imperial Imperial Dunes Recreation Area(Algodones Dunes), ca. 0.5 mi WSW of Ogilby, W of County road S34 95 Comment
  SD250552  Larrea tridentata var. arenaria J. Mark Porter, Susan Hobbs, Orlando Mistretta 2003-3-17 Imperial Algodones Dunes. Imperial Sand Dunes National Recreation Area, Patton Valley. Comment
  SEINET3829085  Larrea tridentata var. arenaria J. Mark Porter 2003-1 13486 Imperial Imperial Dunes (Algodones Dunes), ca 2.2 mi NW of Interstate Highway 8 shallow dunes between the large transverse dunes. Comment
  RSA767598  Larrea tridentata var. tridentata J. Mark Porter 2003-3-4 13488 Imperial Imperial Dunes (Algodones Dunes) about 2.2 miles northwest of Interstate Highway 8. Comment
  RSA0013129  Linanthus jonesii J. Mark Porter, Sarah J. De Groot 2012-4-12 15084 Imperial Palm Canyon Wash, 5.5 mi W of Ocotillo, N of Interstate 8 and S of Dos Cabezas Road, near abandoned railroad, at the southern margin of broad wash. 347 Comment
  RSA0029669  Linanthus jonesii J. Mark Porter, Sarah J. De Groot 2012-4-12 15084 Imperial Palm Canyon Wash, 5.5 mi W of Ocotillo, N of Interstate 8 and S of Dos Cabezas Road, near abandoned railroad, at the southern margin of broad wash. 347 Comment
  RSA0010370  Linanthus maculatus subsp. emaculatus J. Mark Porter, Sarah J. De Groot 2012-4-12 15086 Imperial Palm Canyon Wash, 5.5 mi W of Ocotillo, N of Interstate 8 and S of Dos Cabezas Road, near abandoned railroad, at the southern margin of broad wash. 347 Comment
  RSA0029670  Linanthus maculatus subsp. emaculatus J. Mark Porter, Sarah J. De Groot 2012-4-12 15087 Imperial Palm Canyon Wash, 6.2 mi W of Ocotillo, N of Interstate 8 and S of Dos Cabezas Road, near abandoned railroad, at the eastern margin of broad wash. 384 Comment
  RSA0014472  Loeseliastrum schottii J. Mark Porter 2012-3-30 15080 Imperial About 3 mi W of Ocotillo, N of Interstate 8 and S of Dos Cabezas Road, near abandoned railroad, at the W foot of Sugarloaf Mountain. 278 Comment
  SD255209  Mentzelia longiloba J. Mark Porter, Susan Hobbs, Orlando Mistretta 2003-2-20 Imperial Algodones Dunes. Imperial Sand Dunes National Recreation Area, Algodones Wilderness. Comment
  RSA0127369  Mentzelia longiloba var. longiloba J. Mark Porter, Susan Hobbs, Orlando Mistretta 2003-2-20 s.n. Imperial Algodones Dunes. Imperial Sand Dunes National Recreation Area, Algodones Wilderness. Comment
  RSA0014475  Monoptilon bellioides J. Mark Porter 2012-3-30 15077 Imperial About 3 mi W of Ocotillo, N of Interstate 8 and S of Dos Cabezas Road, near abandoned railroad, at the W foot of Sugarloaf Mountain. 278 Comment
  CAS-BOT-BC309813  Nemacladus rubescens J. Mark Porter; Sarah De Groot 2012-4-12 15082 Imperial Palm Canyon Wash, 5.5 mi W of Ocotillo, N of Interstate 8 and S of Dos Cabezas Road, near abandoned railroad, at the southern margin of broad wash 346 Comment
  CAS-BOT-BC309815  Nemacladus rubescens J. Mark Porter 2012-3-30 15079 Imperial About 3 mi W of Ocotillo, N of Interstate 8 and S of Dos Cabezas Road, near abandoned railroad, at the W foot of Sugarloaf Mountain 278 Comment
  RSA0013124  Nemacladus rubescens J. Mark Porter, Sarah J. De Groot 2012-4-12 15090 Imperial Palm Canyon Wash, 6.2 mi W of Ocotillo, N of Interstate 8 and S of Dos Cabezas Road, near abandoned railroad, at the eastern margin of broad wash. 384 Comment
  RSA0013131  Nemacladus rubescens J. Mark Porter, Sarah J. De Groot 2012-4-12 15082 Imperial Palm Canyon Wash, 5.5 mi W of Ocotillo, N of Interstate 8 and S of Dos Cabezas Road, near abandoned railroad, at the southern margin of broad wash. 347 Comment
  RSA0014473  Nemacladus rubescens J. Mark Porter 2012-3-30 15079 Imperial About 3 mi W of Ocotillo, N of Interstate 8 and S of Dos Cabezas Road, near abandoned railroad, at the W foot of Sugarloaf Mountain. 278 Comment
  RSA767455  Oenothera deltoides J. Mark Porter, Orlando Mistretta, S. Hobbs 2002-3-2 13392 Imperial Imperial Dunes Recreation Area [Algodones Dunes], 0.5 miles west-southwest of Ogilby, west of County road S34. 95 Comment
  SEINET3828033  Oenothera deltoides J. Mark Porter, O. Mistretta & S. Hobbs 2002-1 13392 Imperial Imperial dunes recreation area ( Algodones Dunes) , ca 0.5 mi WSW of ogibly, W of County road S34 95 Comment
  RSA676317  Oenothera deltoides subsp. deltoides J. Mark Porter, Susan Hobbs, Orlando Mistretta 2003-2-20 s.n. Imperial Algodones Dunes. Imperial Sand Dunes National Recreation Area, Algodones Wilderness. Comment
  SD250525  Oenothera deltoides subsp. deltoides J. Mark Porter, Susan Hobbs, Orlando Mistretta 2003-2-20 Imperial Algodones Dunes. Imperial Sand Dunes National Recreation Area, Algodones Wilderness. Comment
  RSA767457  Oligomeris linifolia J. Mark Porter, O. Mistretta, S. Hobbs 2002-3-2 13394 Imperial Imperial Dunes Recreation Area [Algodones Dunes], 0.5 miles west-southwest of Ogilby, west of County road S34. 95 Comment
  SEINET3828032  Oligomeris linifolia J. Mark Porter, O. Mistretta & S. Hobbs 2002-1 13394 Imperial Imperial Dunes Reacreation Area ( Algodones Dunes) , ca 0.5 mi WSW of Ogilby, W of County road S34 95 Comment
  RSA767600  Olneya tesota J. Mark Porter 2003-3-4 13490 Imperial Imperial Dunes (Algodones Dunes) about 2.2 miles northwest of Interstate Highway 8 Comment
  SEINET3828042  Olneya tesota J. Mark Porter 2003-1 13490 Imperial Imperial Dunes ( Algodones Dunes), ca 2.2 mi NW of Interstate Highway 8. Burchan dunes just west of the large transverse dunes. Comment
  CAS-BOT-BC327836  Palafoxia arida J. Mark Porter; O. Mistretta; S. Hobbs 2002-3-2 13401 Imperial Imperial Dunes Recreation Area (Algodones Dunes), ca 0.5 mi WSW of Ogilby, W of County Rd S34. 95 Comment
  RSA676319  Palafoxia arida J. Mark Porter, Susan Hobbs, Orlando Mistretta 2003-2-20 s.n. Imperial Algodones Dunes. Imperial Sand Dunes National Recreation Area, Algodones Wilderness Comment
  SD250447  Palafoxia arida var. arida J. Mark Porter 2003-2-20 Imperial Algodones Dunes. Imperial Sand Dunes National Recreation Area, Algodones Wilderness. Comment
  RSA767464  Palafoxia arida var. gigantea J. Mark Porter, Orlando Mistretta, S. Hobbs 2002-3-2 13401 Imperial Imperial Dunes Recreation Area [Algodones Dunes], 0.5 miles west-southwest of Ogilby, west of County road S34. 95 Comment
  RSA767601  Palafoxia arida var. gigantea J. Mark Porter 2003-3-4 13491 Imperial Imperial Dunes (Algodones Dunes) about 2.2 miles northwest of Interstate Highway 8 Comment
  SEINET3828049  Palafoxia arida var. gigantea J. Mark Porter, O. Mistretta & S. Hobbs 2002-1 13401 Imperial Imperial Dunes Recreation Area (Algodones Dunes), ca. 0.5 mi WSW of ogilby, W of County road S34 95 Comment
  RSA767505  Panicum urvilleanum J. M. Porter, O. Mistretta, S. Hobbs 2002-3-2 13413 Imperial Imperial Dunes Recreation Area [Algodones Dunes], 0.82 miles southwest [202.8 degrees] of Imperial Dunes Recreation Area exit from Interstate 8. 49 Comment
  SEINET3828031  Panicum urvilleanum J. Mark Porter, O. Mostretta & S. Hobbs 2002-1 13413 Imperial Imperial Dunes Recreation Area exit from Interstate 8. 49 Comment
  RSA767476  Pectis papposa J. Mark Porter, Orlando Mistretta, S. Hobbs 2002-3-2 13385 Imperial Imperial Dunes Recreation Area [Algodones Dunes], 0.5 miles west-southwest of Ogilby, west of County road S34. 95 Comment
  RSA767499  Petalonyx thurberi subsp. thurberi J. Mark Porter 2003-4-8 13491 .05 Imperial Imperial Dunes (Algodones Dunes), 4.8 miles north-west [293.29 degrees] of Imperial Sand Dunes Recreation Area exit on Interstate Highway 8, barchan dunes just west of the large transverse dunes. Comment
  RSA0084082  Pholisma sonorae J. Mark Porter 2003-4-8 13491 .04 Imperial Imperial Dunes (Algodones Dunes), 4.8 miles north-west [293.29 degrees] of Imperial Sand Dunes Recreation Area exit on Interstate Highway 8, barchan dunes just west of the large transverse dunes. Comment
  RSA767479  Plantago patagonica J. Mark Porter, O. Mistretta, S. Hobbs 2002-3-2 13388 Imperial Imperial Dunes Recreation Area [Algodones Dunes], 0.5 miles west-southwest of Ogilby, west of County road S34. 95 Comment
  RSA767532  Plantago patagonica J. Mark Porter 2003-4-10 13491 .26 Imperial Imperial Dunes [Algodones Dunes], 1.62 miles northeast [59.49 degrees] of the Gecko Campground loop of Imperial Sand Dunes Recreation Area accessed via California Highway 78. Comment
  SEINET3828037  Plantago patagonica J. Mark Porter, O. Mistretta & S. Hobbs 2002-1 13388 Imperial Imperial Dunes Recreation Area ( Algodones Dunes) , ca 0.5 mi WSW of Ogilby, W of County road S34 95 Comment
  RSA676134  Pleuraphis rigida J. M. Porter, Susan Hobbs, Orlando Mistretta 2003-2-20 s.n. Imperial Algodones Dunes. Imperial Sand Dunes National Recreation Area, Algodones Wilderness Comment
  RSA676320  Pleuraphis rigida J. M. Porter, Susan Hobbs, Orlando Mistretta 2003-3-17 s.n. Imperial Algodones Dunes. Imperial Sand Dunes National Recreation Area., N32 deg 55'18.9'', W 115 deg 5' 26.3''. Comment
  UCR200266  Pleurocoronis pluriseta J. M. Porter, Orlando Mistretta 2003-6-5 13625 Imperial Colorado Desert; Chocolate-Chuckwalla Mountains region, Chocolate Mountains, Chocolate Mountains Bombing and Gunnery Range. Unnamed canyon, south of Salt Creek, accessed via Siphon 21 of the Coachella Canal, fork running southeast 412 Comment
  RSA0121680  Salvia greatae J. Mark Porter 2012-6-23 15153 Imperial Chocolate Mountains, ENE of Wister. 139 Comment
  RSA767461  Sonchus oleraceus J. Mark Porter, Orlando Mistretta, S. Hobbs 2002-3-2 13398 Imperial Imperial Dunes Recreation Area [Algodones Dunes], 0.5 miles west-southwest of Ogilby, west of County road S34. 95 Comment
  RSA676136  Sphaeralcea coulteri J. Mark Porter, Susan Hobbs, Orlando Mistretta 2003-2-20 s.n. Imperial Algodones Dunes. Imperial Sand Dunes National Recreation Area, Algodones Wilderness. Comment
  SD255214  Sphaeralcea coulteri J. Mark Porter, Susan Hobbs, Orlando Mistretta 2003-2-20 Imperial Algodones Dunes. Imperial Sand Dunes National Recreation Area, Algodones Wilderness. Comment
  RSA0013125  Stephanomeria exigua subsp. exigua J. Mark Porter, Sarah J. De Groot 2012-4-12 15089 Imperial Palm Canyon Wash, 6.2 mi W of Ocotillo, N of Interstate 8 and S of Dos Cabezas Road, near abandoned railroad, at the eastern margin of broad wash. 384 Comment
  RSA0013122  Stillingia linearifolia J. Mark Porter, Sarah J. De Groot 2012-4-12 15092 Imperial Palm Canyon Wash, 6.2 mi W of Ocotillo, N of Interstate 8 and S of Dos Cabezas Road, near abandoned railroad, at the eastern margin of broad wash. 384 Comment
  SEINET3828026  Tiquilia palmeri J. Mark Porter, O. Mistretta & S. Hobbs 2002-1 13406 Imperial Imperial Dunes Reacreation Area (Algodones Dunes), 0.82 mi SW (202.8 degrees) of Imperial Recreation Area exit from INterstate 8. 49 Comment
  SEINET3828055  Tiquilia palmeri J. Mark Porter, O. Mistretta & S. Hobbs 2002-1 13399 Imperial Imperial Dunes Recreation Area (Algodones Dunes), ca. 0.5 mi WSW of Ogilby, W of County road S34 95 Comment
  RSA0063310  Tiquilia plicata J. Mark Porter, Orlando Mistretta, S. Hobbs 2002-3-2 13399 Imperial Imperial Dunes Recreation Area [Algodones Dunes], ca. 0.5 miles west-southwest of Ogilby, west of County road S34. 95 Comment
  RSA0063312  Tiquilia plicata J. Mark Porter 2003-3-4 13481 Imperial Imperial Dunes (Algodones Dunes) about 1.9 miles northwest of Interstate Highway 8. Comment



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