Search Results — 98 specimen records retrieved (98 records with coordinates)
Results for search: County=RIVERSIDE; Source=All; Collector=Halvorson;   
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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/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  RSA548744  Camissonia brevipes subsp. brevipes W. L. Halvorson 1977-2-5 77 -7 Riverside Joshua Tree National Monument. Desert bajada near the junction of Interstate 10 and road to the Monument. Comment
  RSA548756  Pinus monophylla W. L. Halvorson 1977-4-4 77 -236 Riverside Transition from desert at Joshua Tree Nat'l Monument. 1220 Comment
  RSA548759  Eriogonum inflatum var. inflatum W. L. Halvorson 1977-2-15 77 -23 Riverside Junction of I-10 and road to Joshua Tree National Monument. Comment
  RSA548760  Salvia columbariae W. L. Halvorson 1977-3-11 77 -145 Riverside Desert, bajada north of Dale Lake, 1/2 mile east of Amboy Rd., 1600 ft. east of Twenty-nine Palms. 488 Comment
Read comments
Jun 2 2013
  SBBG100243  Ribes malvaceum W. L. Halvorson 1977-4-1 77 -219 Riverside 5 mi S of Temecula on Hwy S16 Comment
  SBBG100270  Rhamnus ilicifolia W. L. Halvorson 1977-4-1 77 -221 Riverside 5 mi S of Temecula on Hwy S16 Comment
  SBBG100277  Thalictrum fendleri var. polycarpum W. L. Halvorson 1977-4-1 77 -216 Riverside Hwy S16, 5 mi S of Temecula Comment
  SBBG100294  Chylismia brevipes W. L. Halvorson 1977-2-5 77 -7 Riverside near jct of Interstate 10 and rd to Joshua Tree Nat Monument Comment
  SBBG100298  Chylismia claviformis W. L. Halvorson 1977-2-15 77 -28 Riverside near jct of Interstate 10 and rd to Joshua Tree Nat Monument Comment
  SBBG100299  Chylismia claviformis W. L. Halvorson 1977-3-8 77 -90 Riverside 1 mi S of S entrance to Joshua Tree Nat Monument Comment
  SBBG100304  Eremothera refracta W. L. Halvorson 1977-2-5 77 -8 Riverside near jct of I-10 and rd to Joshua Tree Nat Monument Comment
  SBBG100308  Eremothera boothii subsp. decorticans W. L. Halvorson 1977-2-5 77 -15 Riverside near jct of I-10 and rd to Joshua Tree Nat Monument Comment
  SBBG100309  Oenothera deltoides W. L. Halvorson 1977-3-8 Riverside near roadway of Interstate 10, 30 mi W of Blythe Comment
  SBBG100414  Lepidium fremontii W. L. Halvorson 1977-3-8 77 -74 Riverside 1 mi S of S entrance to Joshua Tree Nat Monument Comment
  SBBG100430  Brassica geniculata W. L. Halvorson 1977-4-1 77 -228 Riverside Corona Comment
  SBBG100456  Matricaria discoidea W. L. Halvorson 1977-3-13 77 -179 Riverside near Temecula Comment
  SBBG100464  Ambrosia salsola var. salsola W. L. Halvorson 1977-3-8 77 -76 Riverside ca. 1 mi S of the S entrance to Joshua Tree Nat Monument Comment
  SBBG100476  Malacothrix glabrata W. L. Halvorson 1977-3-8 77 -86 Riverside ca. 1 mi S of the S entrance to Joshua Tree Nat Monument Comment
  SBBG100492  Eriophyllum confertiflorum var. confertiflorum W. L. Halvorson 1977-4-1 77 -223 Riverside ca. 5 mi S of Temecula Comment
  SBBG100515  Hordeum vulgare W. L. Halvorson 1977-1-4 77 -229 Riverside Corona Comment
  SBBG100551  Bromus rubens W. L. Halvorson 1977-3-13 77 -181 Riverside near Temecula Comment
  SBBG100585  Chamaesyce polycarpa W. L. Halvorson 1977-2-5 77 -14 Riverside near jct of Interstate 10 and rd to Joshua Tree Nat Monument Comment
  SBBG100716  Achyronychia cooperi W. L. Halvorson 1977-3-8 77 -87 Riverside 1 mi S of S entrance to Joshua Tree Nat Monument Comment
  SBBG100729  Brandegea bigelovii W. L. Halvorson 1977-2-5 77 -19 Riverside near jct of Interstate 10 and rd to Joshua Tree Nat Monument Comment
  SBBG100776  Trichoptilium incisum W. L. Halvorson 1977-3-9 77 -89 Riverside 1 mi S of S entrance to Joshua Tree Nat Monument Comment
  SBBG100804  Cryptantha angustifolia W. L. Halvorson 1977-2-5 77 -4 Riverside near jct of Interstate 10 and rd to Joshua Tree Nat Monument Comment
  SBBG100815  Plagiobothrys arizonicus W. L. Halvorson 1977-3-13 77 -178 Riverside near Temecula Comment
  SBBG100841  Psathyrotes ramosissima W. L. Halvorson 1977-3-8 Riverside 1 mi S of S entrance to Joshua Tree Nat Monument Comment
  SBBG100847  Perityle emoryi W. L. Halvorson 1977-2-5 77 -10 Riverside near jct of Interstate 10 and rd to Joshua Tree Nat Monument Comment
  SBBG100852  Palafoxia arida W. L. Halvorson 1977-3-3 77 -70 Riverside near roadway of Interstate 10, 30 mi W of Blythe Comment
  SBBG100853  Palafoxia arida W. L. Halvorson 1977-2-20 77 -78 Riverside 1 mi S of S entrance to Joshua Tree Nat Monument Comment
  SBBG100856  Monoptilon bellioides W. L. Halvorson 1977-2-5 77 -18 Riverside near jct of Interstate 10 and rd to Joshua Tree Nat Monument Comment
  SBBG100857  Monoptilon bellioides W. L. Halvorson 1977-3-8 77 -93 Riverside ca.1 mi S of the S entrance to Joshua Tree Nat Monument Comment
  SBBG100864  Senecio vulgaris W. L. Halvorson 1977-3-13 77 -173 Riverside near Temecula Comment
  SBBG119105  Plagiobothrys arizonicus W. L. Halvorson 1977-3-13 77 -178 Riverside near Temecula Comment
  SBBG119106  Chylismia claviformis W. L. Halvorson 1977-3-8 77 -90 Riverside Joshua Tree Nat Monument, ca. 1 mi S of the S park entrance Comment
  SBBG97156  Thalictrum fendleri var. polycarpum W. L. Halvorson 1977-4-1 77 -216 Riverside Hwy S16, 5 mi S of Temecula Comment
  SBBG97159  Eriogonum inflatum var. inflatum W. L. Halvorson 1977-2-15 77 -23 Riverside near jct of Interstate 10 and rd to Joshua Tree Nat Monument Comment
  SBBG97162  Diplacus puniceus W. L. Halvorson 1977-4-1 77 -218 Riverside 5 mi S of Temecula on County Rd S16 Comment
  SBBG97163  Mohavea confertiflora W. L. Halvorson 1977-2-5 77 -12 Riverside near jct of Interstate 10 and rd to Joshua Tree Nat Monument Comment
  SBBG97167  Physalis crassifolia W. L. Halvorson 1977-3-25 77 -198 Riverside N of Mecca, N of Salton Sea Comment
  SBBG97168  Solanum umbelliferum W. L. Halvorson 1977-4-1 77 -217 Riverside 5 mi S of Temecula on Hwy S16 Comment
  SBBG97170  Larrea tridentata W. L. Halvorson 1977-3-8 77 -73 Riverside 1 mi S of S entrance to Joshua Tree Nat Monument Comment
  SBBG97173  Mentzelia involucrata W. L. Halvorson 1977-2-5 77 -11 Riverside bajada, near jct of I-10 and rd to Joshua Tree Nat Monument Comment
Read comments
Jun 4 2012
  SBBG97174  Mentzelia involucrata W. L. Halvorson 1977-3-8 77 -94 Riverside 1 mi S of S entrance to Joshua Tree Nat Monument Comment
  SBBG97181  Chaenactis carphoclinia W. L. Halvorson 1977-2-15 77 -26 Riverside near jct of Interstate 10 and rd to Joshua Tree Nat Monument Comment
  SBBG97184  Rhus ovata W. L. Halvorson 1977-4-1 77 -225 Riverside 5 mi S of Temecula on Hwy S16 Comment
  SBBG97195  Arctostaphylos glauca W. L. Halvorson 1977-4-1 77 -220 Riverside 5 mi S of Temecula on County Rd S16 Comment
  SBBG97209  Erodium moschatum W. L. Halvorson 1977-3-13 77 -176 Riverside near Temecula Comment
  SBBG97210  Nama demissa W. L. Halvorson 1977-3-8 77085 Riverside 1 mi S of S entrance to Joshua Tree Nat Monument Comment
  SBBG97213  Salvia mellifera W. L. Halvorson 1977-4-1 77 -224 Riverside 5 mi S of Temecula on Hwy S16 Comment
  SBBG97214  Salvia columbariae W. L. Halvorson 1977-2-15 77 -25 Riverside near jct of Interstate 10 and rd to Joshua Tree Nat Monument Comment
  SBBG97219  Cryptantha angustifolia W. L. Halvorson 1977-3-8 77 -83 Riverside 1 mi S of S entrance to Joshua Tree Nat Monument Comment
  SBBG97221  Perityle emoryi W. L. Halvorson 1977-2-5 77 -10 Riverside near jct of Interstate 10 and rd to Joshua Tree Nat Monument Comment
  SBBG97297  Avena barbata W. L. Halvorson 1977-3-13 77 -180 Riverside near Temecula Comment
  SBBG97299  Platanus racemosa W. L. Halvorson 1977-4-1 77 -215 Riverside 5 mi S of Temecula on Hwy S16 Comment
  SBBG97302  Bromus rubens W. L. Halvorson 1977-3-13 77 -181 Riverside near Temecula Comment
  SBBG97706  Ambrosia salsola var. salsola W. L. Halvorson 1977-3-8 77 -76 Riverside ca. 1 mi S of the S entrance to Joshua Tree Nat Monument Comment
  SBBG97707  Baileya pauciradiata W. L. Halvorson 1977-3-8 77 -69 Riverside Interstate 10, ca. 30 mi W of Blythe Comment
  SBBG99187  Mentzelia involucrata W. L. Halvorson 1977-2-5 77 -11 Riverside bajada, near jct of I-10 and rd to Joshua Tree Nat Monument Comment
  SBBG99189  Mentzelia involucrata W. L. Halvorson 1977-3-8 77 -94 Riverside 1 mi S of S entrance to Joshua Tree Nat Monument Comment
  SBBG99224  Eremalche rotundifolia W. L. Halvorson 1977-2-5 77 -16 Riverside near the jct of Interstate 10 and rd to Joshua Tree Nat Monument Comment
  SBBG99225  Eremalche rotundifolia W. L. Halvorson 1977-3-8 77 -79 Riverside 1 mi S of S entrance to Joshua Tree Nat Monument Comment
  SBBG99252  Abronia villosa W. L. Halvorson 1977-3-8 77 -72 Riverside near rdway of Interstate 10, 30 mi W of Blythe Comment
  SBBG99287  Atrichoseris platyphylla W. L. Halvorson 1977-5-2 77 -17 Riverside near jct of Interstate 10 and rd to Joshua Tree Nat Monument Comment
  SBBG99308  Rhus ovata W. L. Halvorson 1977-4-1 77 -225 Riverside 5 mi S of Temecula on Hwy S16 Comment
  SBBG99346  Erodium cicutarium W. L. Halvorson 1977-3-13 77 -177 Riverside near Temecula Comment
  SBBG99347  Erodium cicutarium W. L. Halvorson 1977-4-1 77 -230 Riverside Corona Comment
  SBBG99349  Erodium moschatum W. L. Halvorson 1977-3-13 77 -176 Riverside near Temecula Comment
  SBBG99350  Erodium texanum W. L. Halvorson 1977-3-8 77 -84 Riverside 1 mi S of S entrance to Joshua Tree Nat Monument Comment
  SBBG99383  Chaenactis carphoclinia W. L. Halvorson 1977-2-5 77 -6 Riverside near jct of Interstate 10 and rd to Joshua Tree Nat Monument Comment
  SBBG99384  Chaenactis carphoclinia W. L. Halvorson 1977-2-5 77 -21 Riverside near jct of Interstate 10 and rd to Joshua Tree Nat Monument Comment
  SBBG99385  Chaenactis carphoclinia W. L. Halvorson 1977-2-15 77 -26 Riverside near jct of Interstate 10 and rd to Joshua Tree Nat Monument Comment
  SBBG99399  Encelia farinosa W. L. Halvorson 1977-3-8 77 -77 Riverside ca. 1 mi S of entrance to Joshua Tree Nat Monument Comment
  SBBG99407  Nama demissa W. L. Halvorson 1977-2-15 77 -29 Riverside near jct of Interstate 10 and rd to Joshua Tree Nat Monument Comment
  SBBG99410  Phacelia crenulata W. L. Halvorson 1977-2-5 77 -9 Riverside near jct of Interstate 10 and rd to Joshua Tree Nat Monument Comment
  SBBG99460  Marrubium vulgare W. L. Halvorson 1977-1-15 77 -24 Riverside near jct of Interstate 10 and rd to Joshua Tree Nat Monument Comment
  SBBG99475  Salvia mellifera W. L. Halvorson 1977-4-1 77 -224 Riverside 5 mi S of Temecula on Hwy S16 Comment
  SBBG99596  Loeseliastrum schottii W. L. Halvorson 1977-2-15 77 -30 Riverside near jct of Interstate 10 and rd to Joshua Tree Nat Monument Comment
  SBBG99597  Loeseliastrum schottii W. L. Halvorson 1977-3-8 77 -88 Riverside 1 mi S of S entrance to Joshua Tree Nat Monument Comment
  SBBG99602  Chorizanthe brevicornu var. brevicornu W. L. Halvorson 1977-3-8 77 -80 Riverside 1 mi S of S entrance to Joshua Tree Nat Monument Comment
  SBBG99603  Chorizanthe rigida W. L. Halvorson 1977-3-8 77 87 a Riverside 1 mi S of S entrance to Joshua Tree Nat Monument Comment
  SBBG99610  Eriogonum pusillum W. L. Halvorson 1977-8-3 77 -91 Riverside 1 mi S of S entrance to Joshua Tree Nat Monument Comment
  SBBG99611  Eriogonum thomasii W. L. Halvorson 1977-2-5 77 -13 Riverside near jct of Interstate 10 and rd to Joshua Tree Nat Monument Comment
  SBBG99612  Eriogonum thomasii W. L. Halvorson 1977-3-8 77 -92 Riverside 1 mi S of S entrance to Joshua Tree Nat Monument Comment
  SBBG99704  Diplacus puniceus W. L. Halvorson 1977-4-1 77 -218 Riverside 5 mi S of Temecula on County Rd S16 Comment
  SBBG99713  Mohavea confertiflora W. L. Halvorson 1977-2-5 77 -12 Riverside near jct of Interstate 10 and rd to Joshua Tree Nat Monument Comment
  SBBG99765  Lupinus sparsiflorus W. L. Halvorson 1977-2-15 77 -27 Riverside near jct of Interstate 10 and rd to Joshua Tree Nat Monument Comment
  SBBG99806  Pinus monophylla W. L. Halvorson 1977-4-4 77 -236 Riverside transition from desert to Joshua Tree Nat Monument 1219 Comment
  SBBG99819  Plantago ovata var. fastigiata W. L. Halvorson 1977-2-15 77 -31 Riverside near jct of Interstate 10 and rd to Joshua Tree Nat Monument Comment
  SBBG99836  Platanus racemosa W. L. Halvorson 1977-4-1 77 -215 Riverside 5 mi S of Temecula on Hwy S16 Comment
  SBBG99844  Nicotiana obtusifolia W. L. Halvorson 1977-3-8 77 -75 Riverside ca. 1 mi S of the S entrance to Joshua Tree Nat Monument Comment
  SBBG99847  Physalis crassifolia W. L. Halvorson 1977-3-25 77 -198 Riverside N of Mecca, N of Salton Sea Comment
  SBBG99854  Solanum umbelliferum W. L. Halvorson 1977-4-1 77 -217 Riverside 5 mi S of Temecula on Hwy S16 Comment
  SD143489  Eriogonum inflatum W. L. Halvorson 1977-3-8 77 81 Riverside Desert, 1 mile south of the south entrance to Joshua Tree Nat'l Monument Comment
Read comments
Nov 6 2011
  SD143517  Nama demissa var. demissa W. L. Halvorson 1977-3-8 77 85 Riverside 1.0 mile south of the south entrance to Joshua Tree National Monument. Comment
  SD143522  Arctostaphylos pungens W. L. Halvorson 1977-4-1 77 220 Riverside 5 miles south of Temecula on State Route S-16 Comment
  SD143525  Senecio vulgaris W. L. Halvorson 1977-3-13 77 173 Riverside Rolling hills near Temecula Comment



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