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Specimen ID
Determination *
Collector
Collection Date
Collection Number
County
Locality
Elevation in meters
Feedback
RSA461028
Abronia villosa
D. A. Young
1969-3-28
P- 393
Riverside
At end of Hayfield Rd., S of Interstate Hiway 10.
305
Comment
UCR116304
Achyronychia cooperi
B. G. Pitzer
1998-2-1
3431
Riverside
Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed
427
Comment
UCR244307
Achyronychia cooperi
Jim Andre
2012-4-15
20853
Riverside
Sonoran (Colorado) Desert, west end of Hayfield Dry Lake, 0.3 mi. N. of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10
395
Comment
UCSB1844
Achyronychia cooperi
Beeks, Richard
1952-4-5
Riverside
12 miles E of Shaver Summit
Comment
RSA0042854
Acmispon rigidus
Duncan S. Bell, LeRoy Gross
2014-3-20
6274
Riverside
Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake.
609
Comment
RSA0043068
Adenophyllum porophylloides
Duncan S. Bell, LeRoy Gross
2014-3-20
6264
Riverside
Orocopia Mountains; north section of range; 2.75 air miles southwest of Hayfields Lake.
511
Comment
SEINET3092215
Allionia incarnata
Barbara Gayle Pitzer
1998-2-1
3437
Riverside
Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed.
427
Comment
UCR102740
Allionia incarnata
B. G. Pitzer
1998-2-1
3437
Riverside
Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed
427
Comment
CLARK-A1528-5217
Ambrosia dumosa
John C. Roos
1937-4-28
766
Riverside
Hayfield
Comment
SEINET3146797
Ambrosia dumosa
L. S. Rose
1936-12-26
36827
Riverside
Hayfield, 7 mi. W of Desert Center
762
Comment
UCR244301
Ambrosia dumosa
Jim Andre
2012-4-15
20858
Riverside
Sonoran (Colorado) Desert, west end of Hayfield Dry Lake, 0.3 mi. N. of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10
395
Comment
UCR41603
Ambrosia dumosa
A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart
1986-3-1
6025
Riverside
Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station
412
Comment
UCR244304
Ambrosia salsola
Jim Andre
2012-4-15
20855
Riverside
Sonoran (Colorado) Desert, west end of Hayfield Dry Lake, 0.3 mi. N. of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10
395
Comment
SBBG87792
Ambrosia salsola var. salsola
A. C. Sanders with D. Charlton, B. Pitzer
1986-3-1
6023
Riverside
NW end of Hayfield Lake, ca. 0.5 mi SW of the pumping station
411
Comment
JEPS14148
Ammoselinum giganteum
P. A. Munz and D. Keck
1922-4-13
4930
Riverside
Chuckwalla Valley Colorado Desert (Hayfields); Chuckawalla Valley, Colorado Desert
152
Comment
RSA801980
Ammoselinum giganteum
J. R. Bruff
1928-4-3
s.n.
Riverside
13 W. of Desert Center in dry lake bed
Comment
UC1046273
Ammoselinum giganteum
P. A. Munz and D. Keck
1922-4-13
4930
Riverside
Chuckawalla Valley; ; Chuckawalla Valley, Colorado Desert
152
Comment
HSC82821
Amsinckia tessellata
A. C. Sanders, B. Pitzer, D. Charlton
1986-3-1
6015
Riverside
Chuckwalla Valley, 1 mi. W of Hayfield Lake, 2 mi. SW of the pumping station on small cutoff road from Hayfield Rd. to the dirt road to the Colorado River Aqueduct
427
Comment
SBBG87488
Amsinckia tessellata
A. C. Sanders with B. Pitzer, D. Charlton
1986-3-1
6015
Riverside
Chuckwalla Valley, 1 mi W of Hayfield Lake, 2 mi SW of pumping station on a small cutoff rd from Hayfield Rd to the dirt rd to Colorado River Aqueduct
426
Comment
UCR112968
Amsinckia tessellata
B. G. Pitzer, T. Tennant
1998-2-21
3535
Riverside
Sonoran (Colorado) Desert, Hayfield Dry Lake, on the lakebed, 1/2 to 3/4 mi.le SE of the pumping station
412
Comment
UCR41524
Amsinckia tessellata
A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart
1986-3-1
6015
Riverside
Chuckwalla Valley, 1 mi west of Hayfield Lake, 2 mi SW of the pumping station on a small cutoff road from Hayfield Rd to the dirt road to the Colorado River Aqueduct
427
Comment
CLARK-A1528-4162
Antirrhinum filipes
John C. Roos
1947-2-15
3238
Riverside
Comment
JOTR28916
Antirrhinum filipes
La Doux, Tasha
2005-2-7
1152
Riverside
Joshua Tree National Park. Eagle Mountains; south facing slopes north of Hayfield Dry Lake
553
Comment
POM177870
Antirrhinum filipes
Marcus E. Jones
1930-4-2
s.n.
Riverside
Hayfields
Comment Read comments Sep 16 2011
RSA644223
Antirrhinum filipes
Victor W. Steinmann, P. I. Moscosa, T. S. Ross
1998-4-14
1367
Riverside
Orocopia Mountains, 1.5 km southwest of the Hayfield exit of I-10; ca. 600 m. Along a small wash on north-facing slope.
183
Comment
RSA434323
Argemone
D. A. Young
1969-3-28
P- 309
Riverside
End of Hayfield Rd., S. of interstte Highway 10 (US 60)
305
Comment
CLARK-A1528-5812
Argemone corymbosa
John C. Roos
1949-4-11
4245
Riverside
Hayfield
Comment Read comments Jan 28 2019
UCR19212
Argemone corymbosa
John C. Roos, Lucille Roos
1949-4-11
4245
Riverside
Sonoran (Colorado) Desert, Hayfield Dry Lake
Comment
UCR16458
Argemone munita
John Dean
1965-5-6
s.n.
Riverside
Sonoran (Colorado) Desert, 2 miles west of Hayfield turnoff on Hwy 60 [= modern I-10]
396
Comment
POM13026
Argemone munita subsp. munita
P. A. Munz
1922-4-13
4925
Riverside
Hayfields' Chuckwalla Valley
152
Comment
RSA722445
Argemone munita subsp. munita
J. R. Bruff
1928-4-3
181
Riverside
13 miles W of Desert Center.
Comment
RSA0043067
Argythamnia serrata
Duncan S. Bell, LeRoy Gross
2014-3-20
6265
Riverside
Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake.
609
Comment
CLARK-A1528-7798
Aristida purpurea var. nealleyi
John C. Roos
1949-4-11
4242
Riverside
Hayfield
Comment
RSA47456
Aristida purpurea var. nealleyi
J. C. Roos, L. Roos
1949-4-11
4242
Riverside
Hayfields [Hayfield], Colorado Desert.
Comment
UCR19678
Aristida purpurea var. nealleyi
John C. Roos, Lucille Roos
1949-4-11
4242
Riverside
Sonoran (Colorado) Desert, Hayfield Dry Lake
Comment
UCSB4912
Asclepias albicans
Haller, John
1958-3-22
Riverside
Near U.S. highway 60-70, 7 miles east of Box Canyon road junction (Calif. 195)
365
Comment
RSA289626
Asclepias californica
D. A. Young
1969-5-25
P 484
San Bernardino
end of Haven Avenue N. of Chaffey College
457
Comment
POM187202
Asclepias erosa
Marcus E. Jones
1931-9-15
28744
Riverside
Hayfields. No. Colorado Desert.
Comment
UC479245
Asclepias erosa
Marcus E. Jones, A. M.
1931-9-15
28744
Riverside
Hayfields [Colorado Desert, toward Desert Center]
Comment Read comments Jun 12 2012
CLARK-A1528-1465
Asclepias subulata
John C. Roos
1937-8-20
1226
Riverside
Colorado Desert
Comment
UCR112975
Astragalus nuttallianus
B. G. Pitzer, T. Tennant
1998-2-21
3533
Riverside
Sonoran (Colorado) Desert, Hayfield Dry Lake, on the lakebed, 1/2 to 3/4 mi.le SE of the pumping station
412
Comment
RSA0113041
Atrichoseris platyphylla
R. F. Thorne
1963-3-29
32437
Riverside
Eagle Mountains, Pumping Station, S side of Eagle Mountains; ca. 12 miles W of Desert Center
533
Comment
UCR96037
Baccharis brachyphylla
A. C. Sanders, G. Helmkamp, O. Clarke, B. Pitzer
1996-11-9
19646
Riverside
Sonoran (Colorado) Desert, Orocopia Mtns., near 'Bob's Cabin', 5 mi. (air) south of Hayfield Pump Sta., east of Maniobra Valley, central section of arroyo (N of peak 2552 to Bench Mark 1899)
610
Comment
UCSB9966
Baileya multiradiata
Beeks, Richard
1952-4-5
Riverside
12 miles E. of Shaver Summit
Comment
RSA695664
Baileya pleniradiata
J. Russell Bruff
1928-4-3
172
Riverside
13 miles W of Desert Center.
Comment Read comments Oct 23 2011
UCR244309
Baileya pleniradiata
Jim Andre
2012-4-15
20851
Riverside
Sonoran (Colorado) Desert, west end of Hayfield Dry Lake, 0.3 mi. N. of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10
395
Comment
CDA10492
Bebbia juncea
T. C. Fuller
1962-10-2
9698
Riverside
Hayfields, north of Highway 60-70 to Indio, ca. 14 miles west of Desert Center.
0
Comment
RSA167478
Bebbia juncea
R. F. Thorne
1963-3-29
32436
Riverside
Mouth of arroyo S side Eagle Mts near Eagle Mts Pumping Station of Metropolitan Water District, 12 miles W of Desert Center
Comment Read comments Apr 24 2011
POM192490
Boerhavia coulteri
Marcus E. Jones
1929-9-16
s.n.
Riverside
Hayfield, Near Desert Center. Colorado Desert.
Comment
UCR261844
Boerhavia coulteri
Tim Thomas, Alice Karl
2011-10-18
5527
Riverside
Sonoran (Colorado) Desert, Hayfield Lake, 4 mi east of Chiriaco Summit, just north of Hwy I-10, northwest portion of lake be
437
Comment
VVC2319
Boerhavia coulteri
Tim Thomas, Alice Karl
2011-10-18
5527
Riverside
Sonoran Desert, Hayfield Lake 4 miles east of Chiriaco Summit; just north of Hwy 10. In northwest portion of lake bed.
437
Comment
CAS-BOT-BC434528
Boerhavia intermedia
Marcus E. Jones
1929-9-16
E 4796
Riverside
Hayfields, Near Desert Center
Comment
UC406764
Boerhavia intermedia
Marcus E. Jones, A. M.
1929-9-16
24796
Riverside
near Desert Center (Hayfields); Hayfields
Comment
CAS-BOT-BC434550
Boerhavia wrightii
Marcus E. Jones
1929-9-16
s.n.
Riverside
Hayfields, Near Desert Center
Comment
VVC2318
Boerhavia wrightii
Tim Thomas, Alice Karl
2011-10-18
5528
Riverside
Sonoran Desert, Hayfield Lake 4 miles east of Chiriaco Summit; just north of Hwy 10. In northwest portion of lake bed.
437
Comment
CAS-BOT-BC145591
Bouteloua aristidoides
Marcus E. Jones
1929-9-16
24721
Riverside
Near Desert Center.
Comment
GH355634
Bouteloua aristidoides
M. E. Jones
1929-9-16
1474
Unknown
Hayfields, Near Desert Center
Comment Read comments Jul 4 2012
RSA0043064
Bouteloua aristidoides
Duncan S. Bell, LeRoy Gross
2014-3-20
6268
Riverside
Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake.
609
Comment
RSA192671
Bouteloua aristidoides
Marcus E. Jones
1929-9-16
24721
Riverside
Hayfield, Near Desert Center. Colorado Desert.
Comment
RSA778528
Bouteloua aristidoides
Amber Swanson
2011-10-9
649
Riverside
Around the Hayfields ext N of Hwy I-10.
426
Comment
SACT000426
Bouteloua aristidoides
Marcus Jones
1929-9-16
Riverside
Comment
LA11367
Bouteloua aristidoides var. aristidoides
Marcus E. Jones;
1929-9-16
24721
Riverside
Hayfields, near Desert Center
Comment
UC406747
Bouteloua aristidoides var. aristidoides
Marcus E. Jones, A. M.
1929-9-16
24421
Riverside
near Desert Center; Hayfields
Comment
GH355636
Bouteloua barbata
M. E. Jones
1929-9-16
24716
Unknown
Hayfields, Near Desert Center
Comment Read comments Jul 4 2012
POM192675
Bouteloua barbata
Marcus E. Jones
1929-9-16
24716
Riverside
Hayfield, Near Desert Center. Colorado Desert.
Comment
POM192679
Bouteloua barbata
Marcus E. Jones
1929-9-16
24717
Riverside
Hayfield, Near Desert Center. Colorado Desert.
Comment
CAS-BOT-BC145617
Bouteloua barbata var. barbata
Marcus E. Jones
1929-9-16
24716
Imperial
Near Desert Center.
Comment
UC406749
Bouteloua barbata var. barbata
Marcus E. Jones, A. M.
1929-9-16
24716
Riverside
near Desert Center; Hayfields
Comment
RSA0043066
Brandegea bigelovii
Duncan S. Bell, LeRoy Gross
2014-3-20
6266
Riverside
Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake.
609
Comment
RSA644218
Brandegea bigelovii
V. W. Steinmann, P. I. Moscosa, T. S. Ross
1998-4-12
1359
Riverside
Orocopia Mountains, 1.5 km southwest of the Hayfield exit of I-10.
600
Comment
UCR244310
Brandegea bigelovii
Jim Andre
2012-4-15
20850
Riverside
Sonoran (Colorado) Desert, west end of Hayfield Dry Lake, 0.3 mi. N. of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10
395
Comment
RSA164839
Brassica rapa
Wesley O. Griesel
1963-4-10
758
Los Angeles
Cultivated field, Pasadena
Comment
SBBG87894
Brassica tournefortii
A. C. Sanders with B. Pitzer, D. Charlton
1986-3-1
6014
Riverside
Chuckwalla Valley, 1 mi W of Hayfield Lake, 2 mi SW of pumping station on a small cutoff rd from Hayfield Rd to the dirt rd to Colorado River Aqueduct
426
Comment
UCR102744
Brassica tournefortii
B. G. Pitzer
1998-2-1
3443
Riverside
Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed
427
Comment
UCR41558
Brassica tournefortii
A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart
1986-3-1
6014
Riverside
Chuckwalla Valley, 1 mi west of Hayfield Lake, 2 mi SW of the pumping station on a small cutoff road from Hayfield Rd to the dirt road to the Colorado River Aqueduct
427
Comment
OBI31830
Brickellia incana
David J. Keil
1978-11-27
s.n.
Riverside
I-1- exit at Hayfield rd
Comment Read comments Mar 3 2013
RSA0042857
Brickellia incana
Duncan S. Bell, LeRoy Gross
2014-3-20
6271
Riverside
Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake.
609
Comment
UCR41690
Bromus rubens
A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart
1986-3-1
6036
Riverside
Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station
412
Comment
UCD59904
Bromus tectorum var. glabratus
A. A. Beetle
1942-4-22
3182
Riverside
Rt. 60 and 70, 5 miles east of Shavers Summit.
Comment
RSA465922
Camissonia bistorta
D. A. Young
1968-3-28
P 331
Riverside
At end of Hayfield Road, South of Interstate 10. Creosote scrub.
305
Comment
SEINET3093091
Camissonia boothii
A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart
1986-3-1
6008
Riverside
Chuckwalla Valley; 1 mi west of Hayfield Lake, 2 mi SW of the pumping station on a small cutoff road from Hayfield Rd to the dirt road to the Colorado River Aqueduct
427
Comment
UCR114142
Camissonia boothii
B. G. Pitzer, J. Ross
1998-3-8
3601
Riverside
Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10
427
Comment
UCR117378
Camissonia boothii
B. G. Pitzer
1998-2-1
3449
Riverside
Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed
427
Comment
UCR41541
Camissonia boothii
A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart
1986-3-1
6008
Riverside
Chuckwalla Valley, 1 mi west of Hayfield Lake, 2 mi SW of the pumping station on a small cutoff road from Hayfield Rd to the dirt road to the Colorado River Aqueduct
427
Comment
UCR41604
Camissonia brevipes
A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart
1986-3-1
6027
Riverside
Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station
412
Comment
RSA172301
Camissonia brevipes subsp. brevipes
Robert F. Thorne
1963-3-29
32439
Riverside
Eagle Mountains, Pumping Station, S side of Eagle Mountains; ca. 12 miles W of Desert Center
534
Comment
UCR41556
Camissonia claviformis
A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart
1986-3-1
6009
Riverside
Chuckwalla Valley, 1 mi west of Hayfield Lake, 2 mi SW of the pumping station on a small cutoff road from Hayfield Rd to the dirt road to the Colorado River Aqueduct
427
Comment
UCR112973
Camissonia pallida
B. G. Pitzer, T. Tennant
1998-2-21
3539
Riverside
Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10.
427
Comment
UCR114122
Camissonia pallida
B. G. Pitzer, J. Ross
1998-3-8
3604
Riverside
Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10
427
Comment
CAS-BOT-BC353427
Castela emoryi
B. D. Stark
1929-4-1
1268
Riverside
Chuckawalla, Colorado Desert
Comment
CAS-BOT-BC353428
Castela emoryi
Marcus E. Jones
1929-9-16
24964
Riverside
Near Desert Center
Comment
CDA35222
Castela emoryi
T. C. Fuller
1962-10-2
9697
Riverside
Hayfields, north of Highway 60-70 to Indio, ca. 14 miles west of Desert Center.
0
Comment
GH347637
Castela emoryi
Ivan M. Johnston
1930-6-15
3787
Unknown
Hayfields, Mecca-Blythe Road
Comment
GH347638
Castela emoryi
M. E. Jones
1929-9-16
84964 [?]
Unknown
Hayfields, Near Desert Center
Comment Read comments Sep 18 2016
HSC82838
Castela emoryi
A. C. Sanders, D. Charlton, B. Pitzer
1986-3-1
6041
Riverside
Hayfield Lake, NW end of the lake ca 0.5 mi. SW of the pumping station
412
Comment
JEPS46518
Castela emoryi
James Rennie
1916-6-15
Riverside
in hayfield in Chuckwalla Mts.; in hayfield in Chuckwalla Mts.
Comment Read comments May 6 2009
JEPS46520
Castela emoryi
E. E. Schellenger
May 1920
Riverside
Hayfields e Mecca (Colorado Desert); , Hayfields e of Mecca
Comment
POM14080
Castela emoryi
Philip A. Munz, D. D. Keck
1922-4-14
4993
Riverside
'Hayfields', Chuckwalla Valley
152
Comment Read comments Apr 22 2011
POM160613
Castela emoryi
Marcus E. Jones
1929-3-9
s.n.
Riverside
Hayfields
Comment
POM171282B
Castela emoryi
I. M. Johnston
1930-6-15
3787
Riverside
Hayfields, Mecca-Blythe Road
Comment
POM8059
Castela emoryi
Childs
1920-5-15
s.n.
Riverside
Hayfields'' at Northern end of Colorado Desert.
Comment
RSA1156
Castela emoryi
B. D. Stark
1929-04
545
Riverside
Hayfields, Chuckwalla Valley
Comment
RSA422123
Castela emoryi
Anstruther Davidson
s.n.
Riverside
Between Shaver's Well and Desert Center.
Comment
RSA517253
Castela emoryi
Steve D. Boyd, Thomas S. Elias, Erika Winter
1986-2-18
1338
Riverside
Shavers Valley: NW end of Hayfields Dry Lake,
Comment
RSA699035
Castela emoryi
J. Russell Bruff
1928-4-3
182
Riverside
13 miles W of Desert Center
Comment
SD124707
Castela emoryi
Andy C. Sanders, D. Charleton, B. Pitzer
1986-3-1
6041
Riverside
Hayfield Lake, NW end of the lake ca. I(c) mile SW of pumping station
1349
Comment
SEINET3074273
Castela emoryi
A. C. Sanders, D. Charlton, B. Pitzer
1986-3-1
6041
Riverside
Hayfield Lake, NW end of the lake ca. 0.5 miles SW of the pumping station.
410
Comment
UC406687
Castela emoryi
Marcus E. Jones, A. M.
1929-9-16
24994
Riverside
Hayfields , Hayfields (near Desert Center)
Comment
UC484199
Castela emoryi
B. D. Stark
April 1929
1268
Riverside
Hayfields Colorado Desert, , Hayfields (Chuckawalla Valley)
Comment
UCR163713
Castela emoryi
B. G. Pitzer, T. Tennant
1998-2-21
3537 A
Riverside
Sonoran (Colorado) Desert, Hayfield Dry Lake, on the lakebed, 1/2 to 3/4 mi.le SE of the pumping station
412
Comment
UCR24411
Castela emoryi
John C. Roos
1937-8-20
1223
Riverside
Sonoran (Colorado) Desert, Hayfields about 5-10 miles west of Desert Center
Comment
UCR35781
Castela emoryi
R. F. Thorne
1965-1
41759
Riverside
Sonoran (Colorado) Desert, Hayfields, Chuckwalla Valley. Grown at Rancho Santa Ana Botanic Garden from seed collected by B. D. Stark, Apr. 1929
366
Comment
UCR41641
Castela emoryi
A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart
1986-3-1
6041
Riverside
Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station
412
Comment
UCR60832
Castela emoryi
Steve Boyd, T. S. Elias, Erika Winter
1986-2-18
1338
Riverside
Sonoran (Colorado) Desert, Shavers Valley, Colorado Desert: NW end of Hayfields Dry Lake
Comment
HSC82831
Caulanthus lasiophyllus
A. C. Sanders, B. Pitzer, D. Charlton
1986-3-1
6016
Riverside
Chuckwalla Valley, 1 mi. W of Hayfield Lake, 2 mi. SW of the pumping station on small cutoff road from Hayfield Rd. to the dirt road to the Colorado River Aqueduct
427
Comment
SD124697
Caulanthus lasiophyllus
A. C. Sanders, B. Pitzer and D. Charlton
1986-3-1
6016
Riverside
Chuckwalla Valley, 1.0 mile west of Hayfield Lake, 2.0 miles southwest of the pumping station on a small cutoff road from Hayfield Road .
424
Comment
RSA264430
Cercidium floridum
C. W. Tilforth, Jeff Barnes
1976-7-20
1216
Riverside
Wash N of Power Line Road NE of Chiriaco Summit between Indio and Desert Center
Comment
UCD130229
Chaenactis carphoclinia
James Henrickson
1963-3-29
1224
Riverside
12 miles west of Desert Center, near Eagle Mount Pumping Station.
533
Comment
RSA176336
Chaenactis carphoclinia var. carphoclinia
R. F. Thorne
1963-3-29
32443
Riverside
Eagle Mountains, Pumping Station, S side of Eagle Mountains; ca. 12 miles W of Desert Center
533
Comment
UCR114114
Chaenactis fremontii
B. G. Pitzer, J. Ross
1998-3-8
3607
Riverside
Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10
427
Comment
RSA695676
Chaenactis stevioides
J. Russell Bruff
1928-4-3
179
Riverside
13 miles W of Desert Center.
Comment
UC217943
Chaenactis stevioides
P. A. Munz and D. Keck
1922-4-9
4819
Riverside
Hayfields, Chuckawalla Valley Colorado Desert, Chuckawalla Valley
152
Comment
UCSB7215
Chaenactis stevioides
Beeks, Richard
1952-4-5
Riverside
12 miles E. of Shaver Summit
Comment
POM13922
Chaenactis stevioides var. stevioides
P. A. Munz, D. D. Keck
1922-4-9
4819
Riverside
Hayfields, Chuckawalla Valley.
152
Comment
POM14016
Chamaesyce albomarginata
P. A. Munz, D. D. Keck
1922-4-13
4926
Riverside
Hayfields,' Chuckwalla Valley
152
Comment
RSA316541
Chamaesyce micromera
Marcus E. Jones
1929-9-16
24879
Riverside
Hayfield, Near Desert Center. Colorado Desert.
Comment Read comments Apr 5 2011
RSA0021558
Chamaesyce polycarpa
Duncan S. Bell, Aaron Sims
2012-3-10
2045
Riverside
Orocopia Mountains; northeast section of range, approximately 4 air miles east of Chiriaco Summit.
497
Comment
SEINET3165333
Chamaesyce polycarpa
L. S. Rose
1936-12-26
36821
Riverside
Hayfield, 5 mi. W of Desert Center
914
Comment
RSA0043063
Cheilanthes parryi
Duncan S. Bell, LeRoy Gross
2014-3-20
6269
Riverside
Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake.
609
Comment
RSA636138
Cheilanthes parryi
L. C. Wheeler
1964-10-17
8638
Riverside
Orocopia Mountains: South of Hayfield Reservoir (lake) Colorado Desert.
Comment
SEINET3870277
Cheilanthes parryi
Louis C. Wheeler
1964-10-17
8638
Riverside
Orocopia Mountains: South of Hayfield Reservoir (lake) Colorado Desert.; 0
Comment
UCR153432
Cheilanthes parryi
L. C. Wheeler
1964-10-17
8638
Riverside
Sonoran Desert, North side of Orocopia Mountains, south of Hayfield Reservoir
457
Comment
UCR133023
Chilopsis linearis
Bern Schwenn
1998-5-4
s.n.
Riverside
Sonoran (Colorado) Desert, Eagle Mountains, nameless canyon below Carey's Castle, NW of Red Butte Wash, c. 3 miles east of Chiriaco Summit and 1 mile or so north of I-10
640
Comment
RSA264428
Chilopsis linearis subsp. arcuata
C. W. Tilforth, Jeff Barnes
1976-7-20
1215
Riverside
Wash N of Power Line Road NE of Chiriaco Summit between Indio and Desert Center
Comment
RSA0020375
Chloracantha spinosa
Duncan S. Bell
2013-10-29
6089
Riverside
Hayfields Dry Lake; north of Interstate 10, about a mile southwest of the pumping station.
403
Comment
UC2031354
Chloracantha spinosa
Duncan S. Bell
2013-10-29
6089
Riverside
Colorado Desert, Chocolate-Chuckwalla Mountains:Hayfields Dry Lake, N of Interstate10, about 1 mile SW of the pumping station.
Comment
UCR260163
Chloracantha spinosa
Duncan S. Bell
2013-10-29
6089
Riverside
Sonoran (Colorado) Desert, Hayfield Dry Lake; north of Interstate 10, about a mile southwest of the pumping station
403
Comment
JEPS57601
Chorizanthe brevicornu var. brevicornu
E. E. Schellenger
May 1920
Riverside
e Mecca (Hayfields); Colorado Desert, e of Mecca
Comment
RSA226505
Chorizanthe brevicornu var. brevicornu
C. W. Tilforth, John Dourley
1971-4-15
348
Riverside
Between Chiriaco Summit and Red Butte Wash along aqueduct maintenance road.
534
Comment
RSA644219
Chorizanthe brevicornu var. brevicornu
Victor W. Steinmann, P. I. Moscosa, T. S. Ross
1998-4-14
1358
Riverside
Orocopia Mountains, 1.5 km southwest of the Hayfield exit of I-10; ca. 600 m. Along a small wash on north-facing slope.
183
Comment
SBBG1394
Chorizanthe brevicornu var. brevicornu
C. H. Muller
1952-4-6
9504
Riverside
2 mi E of Shavers Summit, E of S gate to Joshua Tree Nat Monument
Comment
SBBG87405
Chorizanthe brevicornu var. brevicornu
A. C. Sanders with B. Pitzer, D. Charlton
1986-3-1
6011
Riverside
Chuckwalla Valley, 1 mi W of Hayfield Lake, 2 mi SW of pumping station on a small cutoff rd from Hayfield Rd to the dirt rd to Colorado River Aqueduct
426
Comment
UCR41543
Chorizanthe brevicornu var. brevicornu
A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart
1986-3-1
6011
Riverside
Chuckwalla Valley, 1 mi west of Hayfield Lake, 2 mi SW of the pumping station on a small cutoff road from Hayfield Rd to the dirt road to the Colorado River Aqueduct
427
Comment
JEPS57635
Chorizanthe corrugata
E. E. Schellenger
May 1920
Riverside
near Mecca (Hayfields, Colorado Desert); Colorado Desert, Hayfields
Comment
JEPS57733
Chorizanthe rigida
E. E. Schellenger
May 1928
Riverside
e Mecca (Hayfields, Colorado Desert); Colorado Desert, Hayfields, e of Mecca
Comment
UCR114146
Chorizanthe rigida
B. G. Pitzer, J. Ross
1998-3-8
3618
Riverside
Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10
427
Comment
RSA643806
Chrysothamnus paniculatus
A. C. Sanders, G. Helmkamp, O. Clarke, B. Pitzer, et al.
1996-11-9
19647
Riverside
Colorado Desert: Orocopia Mtns., near Bob's Cabin, 5 mi. (Air) S of Hayfield Pump Sta., E of Maniobra V., central sect. of (N of peak 2552 to BMk 1899) arroyo.
610
Comment
UCR96038
Chrysothamnus paniculatus
A. C. Sanders, G. Helmkamp, O. Clarke, B. Pitzer
1996-11-9
19647
Riverside
Sonoran (Colorado) Desert, Orocopia Mtns., near 'Bob's Cabin', 5 mi. (air) south of Hayfield Pump Sta., east of Maniobra Valley, central section of arroyo (N of peak 2552 to Bench Mark 1899)
610
Comment
UCSB30406
Chylismia brevipes
Krasner, Larry
1975-3-22
Riverside
11 miles west of Desert Center on Highway 10
365
Comment
GMDRC9800
Chylismia brevipes subsp. brevipes
J. M. Andre
2017-3-1
38009
Riverside
Eagle Mountains: south end of range, 2.8 mi. north of Interstate 10 at Hayfield Rd exit
506
Comment
RSA289628
Cirsium occidentale var. californicum
D. A. Young
1969-5-25
P 473
San Bernardino
end of Haven Avenue N. of Chaffey College
457
Comment
POM667082
Coryphantha alversonii
Clarence Bonner, Alice Bonner
1961-12-1
s.n. (M E)
Riverside
Eagle Mountain Range: East end of the Eagle Mountains near Eagle Mountain pumping station, Metropolitan Water District Aqueduct.
305
Comment
RSA656148
Coryphantha alversonii
Clarence Bonner
1961-12-1
s.n.
Riverside
Eagle Mountain Range: East end of the Eagle Mountains near Eagle Mountain pumping station, Metropolitan Water District Aqueduct.
305
Comment
CLARK-A1528-2210
Cryptantha angustifolia
John C. Roos
1947-2-14
3254
Riverside
Eagle Mountains
Comment
CLARK-A1528-5391
Cryptantha angustifolia
John C. Roos
1947-2-14
3254
Riverside
Eagle Mountains
Comment
POM368198
Cryptantha angustifolia
D. A. Young
1969-3-28
342
Riverside
At end of Hayfield Rd., S of Interstate Hiway 10.
305
Comment
SBBG6234
Cryptantha angustifolia
C. H. Muller
1952-4-6
9503
Riverside
2 mi E of Shavers Summit, E of S gate to Joshua Tree Nat Monument
Comment
UC280441
Cryptantha angustifolia
E. E. Schellenger
1920-5-1
Riverside
e of Mecca (Hayfields); Colorado Desert
Comment Read comments Jun 18 2011
UCR244300
Cryptantha angustifolia
Jim Andre
2012-4-15
20859
Riverside
Sonoran (Colorado) Desert, west end of Hayfield Dry Lake, 0.3 mi. N. of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10
395
Comment
JOTR28812
Cryptantha barbigera
La Doux, Tasha
2005-2-7
1080
Riverside
Joshua Tree National Park. Above Hayfield Dry Lake
553
Comment
SBBG6243
Cryptantha barbigera
C. H. Muller
1952-4-6
9502
Riverside
2 mi E of Shavers Summit, E of S gate to Joshua Tree Nat Monument
Comment
UCR41599
Cryptantha barbigera
A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart
1986-3-1
6021
Riverside
Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station
412
Comment
OBI38928
Cryptantha dumetorum
A. C. Sanders, B. Pitzer & D. Charlton, D. Charlton
1986-3-1
6010
Riverside
Chuckwalla Valley, 1 mi W of Hayfield Lake, 2 mi SW of the pumping station on a small cutoff rd from Hayfield rd to the dirt rd to the Colorado River Aqueduct (T5S, R13E, SW 1/4 sec 30)
427
Comment
SBBG87895
Cryptantha dumetorum
A. C. Sanders with B. Pitzer, D. Charlton
1986-3-1
6010
Riverside
Chuckwalla Valley, 1 mi W of Hayfield Lake, 2 mi SW of pumping station on a small cutoff rd from Hayfield Rd to the dirt rd to Colorado River Aqueduct
426
Comment
UCR41531
Cryptantha dumetorum
A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart
1986-3-1
6010
Riverside
Chuckwalla Valley, 1 mi west of Hayfield Lake, 2 mi SW of the pumping station on a small cutoff road from Hayfield Rd to the dirt road to the Colorado River Aqueduct
427
Comment
JOTR28750
Cryptantha maritima
La Doux, Tasha
2005-2-7
1031
Riverside
Joshua Tree National Park. above Hayfield Dry lake
553
Comment
SBBG6270
Cryptantha nevadensis var. nevadensis
C. H. Muller
1952-4-6
9501
Riverside
2 mi E of Shavers Summit, E of S gate to Joshua Tree Nat Monument
Comment
SBBG14710
Cryptantha pterocarya var. pterocarya
H. and M. Dearing
1937-4-10
Riverside
near Hayfield
Comment
POM13893
Cryptantha racemosa
P. A. Munz, D. D. Keck
1922-4-9
4829
Riverside
S base of Eagle Mts
229
Comment
POM258906
Cryptantha racemosa
E. C. Jaeger
1939-12-3
s.n.
Riverside
Canyon of Orocopia Mountains, south of Hayfield reservoir.
427
Comment
UC217942
Cryptantha racemosa
P. A. Munz, D. Keck
1922-4-9
4829
Riverside
s base Eagle Mts.; Colorado Desert
228
Comment
RSA0098327
Cylindropuntia bigelovii
Marc A. Baker, Michelle Cloud-Hughes
2015-3-25
18288 .1
Riverside
Orocopia Mountains, 2.4 km north of Red Canyon, 52 km east of Indio.
658
Comment
SEINET9037778
Cylindropuntia bigelovii
M. A. Baker, Michelle Cloud-Hughes
2015-1
18288 .2
Riverside
Orocopia Mountains, 2.4km north of Red Canyon, 52km east of Indio, mostly granitic grus and rocks
658
Comment
SEINET716811
Cylindropuntia ramosissima
R. Puente, G. and A. Puente-Reinhardt
1998-11-7
741
Riverside
1.5mi e of Chirico Summit
Comment Read comments Jan 7 2016
GMDRC5672
Cynanchum utahense
J. Andre
2012-4-15
20848
Riverside
west end of Hayfield Dry Lake, 0.3 mi. N. of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10
395
Comment
RSA791481
Cynanchum utahense
J. Andre
2012-4-15
20848
Riverside
West end of Hayfield Dry Lake, 0.3 mi. N. of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10.
395
Comment
UCR244312
Cynanchum utahense
Jim Andre
2012-4-15
20848
Riverside
Sonoran (Colorado) Desert, west end of Hayfield Dry Lake, 0.3 mi. N. of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10
395
Comment
UCR41813
Dalea mollis
A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart
1986-3-1
6039
Riverside
Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station
412
Comment
RSA796272
Dalea mollissima
Jim Andre
2012-4-15
20849
Riverside
West end of Hayfield Dry Lake, 0.3 mi. N of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10.
395
Comment
UCR114118
Dalea mollissima
B. G. Pitzer, J. Ross
1998-3-8
3613
Riverside
Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10
427
Comment
UCR244311
Dalea mollissima
Jim Andre
2012-4-15
20849
Riverside
Sonoran (Colorado) Desert, west end of Hayfield Dry Lake, 0.3 mi. N. of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10
395
Comment
CLARK-A1528-2775
Dalea spinosa
John C. Roos
1947-2-15
3233
Riverside
Eagle Mountains
Comment
CLARK-A1528-4965
Dalea spinosa
John C. Roos
1947-2-15
3233
Riverside
Eagle Mountains
Comment
GMDRC9801
Diplacus bigelovii
J. M. Andre
2017-3-1
38010
Riverside
Eagle Mountains: south end of range, 2.8 mi. north of Interstate 10 at Hayfield Rd exit
506
Comment
CAS-BOT-BC150939
Diplacus bigelovii var. bigelovii
H. Dearing; M. Dearing
1937-5-10
s 1638
Riverside
Near Hayfields, Colorado Desert
Comment
GMDRC9814
Ditaxis lanceolata
J. M. Andre
2017-3-1
38018
Riverside
Eagle Mountains: south end of range, 2.8 mi. north of Interstate 10 at Hayfield Rd exit
506
Comment
RSA171926
Ditaxis lanceolata
R. F. Thorne
1963-3-29
32442
Riverside
Eagle Mountains, Pumping Station, S side of Eagle Mountains; ca. 12 miles W of Desert Center
533
Comment
RSA644217
Ditaxis lanceolata
V. W. Steinmann, P. I. Moscosa, T. S. Ross
1998-4-14
1366
Riverside
Orocopia Mountains, 1.5 km southwest of the Hayfield exit of I-10. Along a small wash on north-facing slope.
182
Comment
SBBG87466
Ditaxis lanceolata
A. C. Sanders with D. Charlton, B. Pitzer
1986-3-1
6026
Riverside
NW end of Hayfield Lake, ca. 0.5 mi SW of the pumping station
411
Comment
UCD142304
Ditaxis lanceolata
V. W. Steinmann; P. I. Moscosa, T. S. Ross
1998-4-14
1366
Riverside
Orocopia Mountains, 1.5 km southwest of the Hayfield exit of I-10.
600
Comment
UCD142874
Ditaxis lanceolata
James Henrickson
1963-3-29
1215
Riverside
12 miles West of Desert Center, near Eagle Mt.
533
Comment
UCR114113
Ditaxis lanceolata
B. G. Pitzer, J. Ross
1998-3-8
3609
Riverside
Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10
427
Comment
UCR41800
Ditaxis lanceolata
A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart
1986-3-1
6026
Riverside
Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station
412
Comment
RSA0021557
Ditaxis neomexicana
Duncan S. Bell, Aaron Sims
2012-3-10
2044
Riverside
Orocopia Mountains; northeast section of range, approximately 4 air miles east of Chiriaco Summit.
497
Comment
UCR117379
Ditaxis neomexicana
B. G. Pitzer
1998-2-1
3450
Riverside
Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed
427
Comment
UCR244303
Ditaxis neomexicana
Jim Andre
2012-4-15
20856
Riverside
Sonoran (Colorado) Desert, west end of Hayfield Dry Lake, 0.3 mi. N. of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10
395
Comment
RSA263904
Ditaxis serrata var. californica
C. W. Tilforth
1976-7-20
1211
Riverside
Along power line road n.e. of Chiriaco Summit between Indio & Desert Center, Riverside County, CA. Colorado Desert.
Comment
UCD142301
Ditaxis serrata var. californica
C. W. Tilforth
1976-7-20
1211
Riverside
Colorado Desert. Along power line road N.E. of Chiriaco Summit between Indio and Desert Center
Comment
CLARK-A1528-1803
Dyssodia porophylloides
John C. Roos
1947-2-15
3239
Riverside
Eagle Mountains
Comment
SEINET8060012
Echinocactus polycephalus var. polycephalus
Michael Chamberl
1990-1-8
10
Riverside
1/4mi down Hayfield Rd. south of I-10
500
Comment
SEINET8060013
Echinocactus polycephalus var. polycephalus
Michael Chamberl
1990-1-8
9
Riverside
1/4mi down Hayfield Rd. south of I-10
500
Comment
SEINET8060016
Echinocactus polycephalus var. polycephalus
Michael Chamberl
1990-1-8
8
Riverside
1/4mi down Hayfield Rd. south of I-10
500
Comment
SEINET8060772
Echinocactus polycephalus var. polycephalus
Michael Chamberl
1990-1-8
7
Riverside
1/4mi down Hayfield Rd. south of I-10
500
Comment
RSA172266
Emmenanthe penduliflora
Robert F. Thorne
1963-3-29
32438
Riverside
Eagle Mountains, Pumping Station, S side of Eagle Mountains; ca. 12 miles W of Desert Center
534
Comment Read comments Apr 24 2011
UCR114116
Emmenanthe penduliflora
B. G. Pitzer, J. Ross
1998-3-8
3611
Riverside
Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10
427
Comment
UCR41850
Emmenanthe penduliflora
A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart
1986-3-1
6037
Riverside
Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station
412
Comment
RSA0041454
Encelia farinosa
Duncan S. Bell, LeRoy Gross
2014-3-20
6279
Riverside
Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake.
609
Comment
RSA696888
Encelia farinosa
W. Marquart
1938-3-12
s.n.
Riverside
15 mi. W. of Desert Center on main highway.
Comment Read comments Apr 5 2011
UCR41600
Encelia farinosa
A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart
1986-3-1
6032
Riverside
Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station
412
Comment
RSA171035
Encelia farinosa var. farinosa
R. F. Thorne
1963-3-29
32434
Riverside
Eagle Mountains, Pumping Station, S side of Eagle Mountains; ca. 12 miles W of Desert Center
533
Comment
UCR114144
Eremalche exilis
B. G. Pitzer, J. Ross
1998-3-8
3605
Riverside
Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10
427
Comment
UCR41691
Eremalche exilis
A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart
1986-3-1
6034
Riverside
Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station
412
Comment
UCR102741
Eremalche rotundifolia
B. G. Pitzer
1998-2-1
3439
Riverside
Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed
427
Comment
UCSB30402
Eremothera boothii subsp. condensata
Krasner, Larry
1975-3-22
Riverside
11 miles west of Desert Center, on Highway 10
365
Comment
UCSB5012
Eriastrum eremicum
Beeks, Richard
1952-4-5
Riverside
12 miles E of Shaver Summit
Comment
CAS-BOT-BC299533
Ericameria paniculata
A. C. Sanders; G. Helmkamp; O. Clarke; B. Pitzer; et al
1996-11-9
19647
Riverside
Orocopia Mtns., near Bob's Cabin 5 mi. (air) S of Hayfield Pump Sta., E of Maniobra V., central sect. of (N of peak 2552 to BMk 1899) arroyo, Colorado Desert
609
Comment
POM13575
Erigeron divergens
P. A. Munz, D. D. Keck
1922-4-13
4924
Riverside
Hayfields,' Chuckwalla Valley
152
Comment
UC219102
Erigeron divergens
P. A. Munz, D. Keck
1922-4-13
4924
Riverside
Colorado Desert, Chuckawalla Valley
152
Comment Read comments Jun 11 2012
CDA22575
Eriogonum deflexum
T. C. Fuller
1962-10-2
9699
Riverside
Hayfields, north of Highway 60-70 to Indio, ca. 14 miles west of Desert Center.
0
Comment
UCR114119
Eriogonum deflexum
B. G. Pitzer, J. Ross
1998-3-8
3615
Riverside
Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10
427
Comment
CAS-BOT-BC256122
Eriogonum deflexum var. deflexum
Lewis S. Rose
1936-12-26
36824
Riverside
Hayfield, 5 mi. W of Desert Center
Comment
CAS-BOT-BC256123
Eriogonum deflexum var. deflexum
Lewis S. Rose
1936-12-26
36824 a
Riverside
Hayfield, 5 mi. W of Desert Center
Comment
CAS-BOT-BC256127
Eriogonum deflexum var. deflexum
Annie M. Alexander; Louise Kellogg
1941-5-28
2264
Riverside
2 miles east of Shaver Summit, Colorado Desert
Comment
UC666501
Eriogonum deflexum var. deflexum
Annie M. Alexander and Louise Kellogg
1941-5-28
2264
Riverside
2 mi e, in wash next to rocky hills Shaver Summit; Colorado Desert
469
Comment
UC849369
Eriogonum deflexum var. deflexum
Lewis S. Rose
1936-12-26
36824
Riverside
5 mi w, Hayfield Desert Center; Hayfield
609
Comment Read comments Dec 15 2011
JEPS56815
Eriogonum inflatum
E. E. Schellenger
May 1920
Riverside
Hayfields near Mecca; Colorado Desert
Comment
RSA698441
Eriogonum inflatum
J. R. Bruff
1928-4-3
173
Riverside
13 miles W of Desert Center.
Comment
RSA226510
Eriogonum reniforme
C. W. Tilforth, John Dourley
1971-4-15
348
Riverside
Between Chiriaco Summit and Red Butte Wash along aqueduct maintenance road.
Comment
RSA644221
Eriogonum thomasii
Victor W. Steinmann, P. I. Moscosa, T. S. Ross
1998-4-14
1368
Riverside
Orocopia Mountains, 1.5 km southwest of the Hayfield exit of I-10; ca. 600 m. Along a small wash on north-facing slope.
183
Comment
UCR244302
Eriogonum trichopes
Jim Andre
2012-4-15
20857
Riverside
Sonoran (Colorado) Desert, west end of Hayfield Dry Lake, 0.3 mi. N. of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10
395
Comment
UCR102738
Erodium cicutarium
B. G. Pitzer
1998-2-1
3433
Riverside
Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed
427
Comment
POM14030
Erodium texanum
P. A. Munz, D. Keck
1922-4-13
4923
Riverside
Hayfields, Chuckwalla Valley
152
Comment
UC217947
Erodium texanum
P. A. Munz, D. Keck
1922-4-13
4923
Riverside
Hayfield Colorado Desert, Chuckwalla Valley
152
Comment
UCR112971
Erodium texanum
B. G. Pitzer, T. Tennant
1998-2-21
3537
Riverside
Sonoran (Colorado) Desert, Hayfield Dry Lake, on the lakebed, 1/2 to 3/4 mi.le SE of the pumping station
412
Comment
UCR114123
Eschscholzia parishii
B. G. Pitzer, J. Ross
1998-3-8
3616
Riverside
Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10
427
Comment
POM13894
Eucrypta micrantha
P. A. Munz, D. D. Keck
1920-4-9
4830
Riverside
S base of Eagle Mtns.
213
Comment
UCR240520
Euphorbia abramsiana
Tim Thomas, Alice Karl
2011-10-18
5526
Riverside
Sonoran (Colorado) Desert, Hayfield Lake, 4 mi east of Chiriaco Summit, just north of Hwy I-10, northwest portion of lake be
437
Comment
VVC2056
Euphorbia abramsiana
Tim Thomas, Alice Karl
2011-10-18
5526
Riverside
Sonoran Desert, Hayfield Lake 4 miles east of Chiriaco Summit; just north of Hwy 10. In northwest portion of lake bed.
437
Comment
POM13909
Euphorbia eriantha
P. A. Munz, D. D. Keck
1922-4-13
4820
Riverside
Eagle Mountains.
244
Comment
RSA0041458
Euphorbia eriantha
Duncan S. Bell, LeRoy Gross
2014-3-20
6275
Riverside
Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake.
609
Comment
SD146282
Euphorbia eriantha
B. Pitzer, Tracy Tennant
1998-2-21
3538
Riverside
Colorado Desert, north-facing bajada on south side of Hayfield Lake between lakebed & Hwy 1-10, Hayfield Spring, in washes & on flats
412
Comment
UC217898
Euphorbia eriantha
P. A. Munz, D. Keck
1922-4-13
4820
Riverside
Eagle Mountains, Colorado Desert
213
Comment
UCR112972
Euphorbia eriantha
B. G. Pitzer, T. Tennant
1998-2-21
3538
Riverside
Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10.
427
Comment
RSA0041945
Euphorbia jaegeri
Duncan S. Bell, Loraine Washburn
2014-4-9
6590
Riverside
Orocopia Mountains; northeast section of range; approximately 3.75 air miles south of Hayfields Lake.
551
Comment
RSA0043069
Euphorbia jaegeri
Duncan S. Bell, LeRoy Gross
2014-3-20
6263
Riverside
Orocopia Mountains; north section of range; 2.75 air miles southwest of Hayfields Lake.
511
Comment
SEINET8665762
Euphorbia jaegeri
Duncan S. Bell, LeRoy Gross
2014-3-20
6263
Riverside
Oocopia Mountains: north section of range; 2.75 air miles southwest of Hayfields Lake.
511
Comment
SEINET3828351
Euphorbia polycarpa
Amber Swanson
2011-1
653
Riverside
On a flat sandy wash areas
426
Comment
POM214415
Euphorbia polycarpa var. hirtella
E. C. Jaeger
1939-12-3
s.n.
Riverside
Canyon of Orocopia Mountains, south of Hayfield reservoir.
427
Comment
SBBG3961
Fagonia laevis
K. K. Muller
1952-4-5
561
Riverside
2 mi E of Shavers Summit, E of S gate to Joshua Tree Nat Monument
Comment
SBBG3962
Fagonia laevis
H. and M. Dearing
1937-4-10
967
Riverside
near Hayfield
Comment
UCSB7950
Fagonia laevis
Muller, Katherine
1952-4-5
Riverside
2 mi. E. of Shaver's Summit, E. of South Gate of Joshua Tree National Monument
Comment
UCR112979
Filago depressa
B. G. Pitzer, T. Tennant
1998-2-21
3540
Riverside
Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10.
427
Comment
UCR41525
Filago depressa
A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart
1986-3-1
6019
Riverside
Chuckwalla Valley, 1 mi west of Hayfield Lake, 2 mi SW of the pumping station on a small cutoff road from Hayfield Rd to the dirt road to the Colorado River Aqueduct
427
Comment
RSA0039650
Fouquieria splendens
Duncan S. Bell, LeRoy Gross
2014-3-20
6287
Riverside
Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake.
609
Comment
RSA182257
Fouquieria splendens
Robert F. Thorne, James Henrickson
1963-3-29
32440
Riverside
Eagle Mountains, Pumping Station, S side of Eagle Mountains; ca. 12 miles W of Desert Center
534
Comment
UCR244305
Fouquieria splendens subsp. splendens
Jim Andre
2012-4-15
20854
Riverside
Sonoran (Colorado) Desert, west end of Hayfield Dry Lake, 0.3 mi. N. of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10
395
Comment
RSA0042855
Funastrum hirtellum
Duncan S. Bell, LeRoy Gross
2014-3-20
6273
Riverside
Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake.
609
Comment
RSA171053
Funastrum hirtellum
R. F. Thorne
1963-3-29
32430
Riverside
Mouth of arroyo near Eagle Mt. Pumping Station, S side of Eagle Mts., ca. 12 miles W of Desert Center.
533
Comment Read comments Apr 24 2011
RSA644216
Funastrum hirtellum
V. W. Steinmann, P. I. Moscosa, Timothy S. Ross
1998-4-14
1364
Riverside
Orocopia Mountains, 1.5 km southwest of the Hayfield exit of I-10.
182
Comment
SEINET7248310
Funastrum hirtellum
Duncan S. Bell, LeRoy Gross
2014-1
6273
Riverside
Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake.
609
Comment
HSC101233
Funastrum utahense
Jim Andre
2012-4-15
20848
Riverside
West end of Hayfield Dry Lake, 0.3 mi. N. of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10.
395
Comment
RSA699241
Geraea canescens
J. R. Bruff
1928-4-3
s.n.
Riverside
13 miles W of Desert Center.
Comment
RSA470223
Gilia capitata subsp. abrotanifolia
Anstruther Davidson
s.n.
Riverside
Between Shaver's Well and Desert Center.
Comment Read comments Sep 20 2011
SD146195
Gilia stellata
B. Pitzer, J. Ross
1998-3-8
3608 1
Riverside
North-facing bajada on south side of Hayfield Lake between laebed and Highway I-10.
412
Comment
UCR114124
Gilia stellata
B. G. Pitzer, J. Ross
1998-3-8
3608 .1
Riverside
Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10
427
Comment
UCSB690
Hesperocallis undulata
Beeks, Richard
1952-4-5
Riverside
12 miles E. of Shavers Summit
Comment
GMDRC9802
Hibiscus denudatus
J. M. Andre
2017-3-1
38016
Riverside
Eagle Mountains: south end of range, 2.8 mi. north of Interstate 10 at Hayfield Rd exit
506
Comment
RSA0042858
Hibiscus denudatus
Duncan S. Bell, LeRoy Gross
2014-3-20
6270
Riverside
Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake.
609
Comment
UCR114115
Hibiscus denudatus
B. G. Pitzer, J. Ross
1998-3-8
3610
Riverside
Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10
427
Comment
SEINET190986
Hilaria rigida
A. A. Beetle
1942-4-22
3183
Riverside
5 mi E of Shaver's Summit; Rt 60 & 70
Comment
UCD89916
Hilaria rigida
A. A. Beetle
1942-4-22
3183
Riverside
Rts. 60 and and 0 (sic), 5 miles east of Shavers Summit.
Comment
UCSB393
Hilaria rigida
Beeks, Richard
1952-4-5
Riverside
12 miles east of Shavers Summit
Comment
POM14017
Hoffmannseggia glauca
P. A. Munz, D. D. Keck
1922-4-13
4927
Riverside
Hayfields, Chuckwalla Valley
152
Comment
UCR41803
Hordeum murinum
A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart
1986-3-1
6035
Riverside
Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station
412
Comment
SBBG87467
Hordeum murinum subsp. leporinum
A. C. Sanders with D. Charlton, B. Pitzer
1986-3-1
6035
Riverside
NW end of Hayfield Lake, ca. 0.5 mi SW of the pumping station
1350
Comment
CLARK-A1528-1959
Hymenoclea salsola
John C. Roos
1947-2-15
3246
Riverside
Eagle Mountains
Comment
UCR41588
Hymenoclea salsola
A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart
1986-3-1
6023
Riverside
Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station
412
Comment
RSA0041452
Hyptis emoryi
Duncan S. Bell, LeRoy Gross
2014-3-20
6281
Riverside
Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake.
609
Comment
UCR41598
Isomeris arborea
A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart
1986-3-1
6033
Riverside
Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station
412
Comment
CLARK-A1528-4430
Kallstroemia californica
John C. Roos
1963-10-24
Riverside
Hayfield
Comment
RSA648667
Kallstroemia californica
J. C. Roos
1963-10-24
s.n.
Riverside
Hayfields, Colorado Desert.
Comment
UC4066990
Kallstroemia californica
Marcus E. Jones, A. M.
1929-9-16
Riverside
Hayfields near Desert Center; Hayfields, near Desert Center
Comment
UCR26258
Kallstroemia californica
John C. Roos
1963-10-24
s.n.
Riverside
Sonoran (Colorado) Desert, Hayfield, Colorado Desert
427
Comment
RSA0042112
Krameria grayi
Duncan S. Bell, LeRoy Gross
2014-3-20
6283
Riverside
Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake.
609
Comment
UCR41544
Langloisia schottii
A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart
1986-3-1
6012
Riverside
Chuckwalla Valley, 1 mi west of Hayfield Lake, 2 mi SW of the pumping station on a small cutoff road from Hayfield Rd to the dirt road to the Colorado River Aqueduct
427
Comment
RSA644202
Langloisia setosissima subsp. setosissima
V. W. Steinmann, P. I. Moscosa
1998-4-21
1369
Riverside
Orocopia Mountains, ca. 2 km southwest of the Hayfield exit of I-10.
750
Comment
UCR244298
Larrea tridentata
Jim Andre
2012-4-15
20861
Riverside
Sonoran (Colorado) Desert, west end of Hayfield Dry Lake, 0.3 mi. N. of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10
395
Comment
RSA289625
Layia glandulosa
D. A. Young
1969-5-25
P 493
San Bernardino
end of Haven Avenue N. of Chaffey College
457
Comment
JEPS53617
Lepidium fremontii
E. E. Schellenger
May 1920
Riverside
s. Mecca (Chuckwalla Mts.); Colorado Desert, Chuckwalla Mts.
Comment Read comments Sep 8 2011
RSA429902
Lepidium fremontii
D. A. Young
1969-3-28
464
Riverside
At end of Hayfield Rd., S of Interstate Hiway 10.
305
Comment
SD145979
Lepidium fremontii
B. Pitzer, Tracy Tennant
1998-2-21
3541
Riverside
Colorado Desert: north-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10
412
Comment
UCR112961
Lepidium fremontii
B. G. Pitzer, T. Tennant
1998-2-21
3541
Riverside
Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10.
427
Comment
POM14361
Lepidium lasiocarpum
P. A. Munz, D. D. Keck
1922-4-9
4806
Riverside
Hayfields, Chuckawalla Valley.
152
Comment
POM48142
Lepidium lasiocarpum
E. E. Schellenger
1920-05
s.n.
Riverside
E of Mecca, Colorado Desert.
Comment Read comments Jun 18 2011
SD124698
Lepidium lasiocarpum
A. C. Sanders, D. Charlton & B. Pitzer
1986-3-1
6031
Riverside
Hayfield Lake, northwest end of the lake, ca. 0.5 mile southwest of the pumping station.
409
Comment
UCR102748
Lepidium lasiocarpum
B. G. Pitzer
1998-2-1
3448
Riverside
Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed
427
Comment
UCR41832
Lepidium lasiocarpum
A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart
1986-3-1
6031
Riverside
Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station
412
Comment
UCR116305
Lepidospartum squamatum
B. G. Pitzer
1998-2-1
3450 .2
Riverside
Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed
427
Comment
POM13425
Lesquerella tenella
P. A. Munz, D. D. Keck
1922-4-9
4815
Riverside
Hayfields, Chuckawalla Valley.
152
Comment
UC217892
Lesquerella tenella
P. A. Munz and D. Keck
1922-4-9
4815
Riverside
Hayfields; Chuckawalla Valley Hayfields; Colorado Desert, Chuckawalla Valley, Hayfields
152
Comment
SBBG87393
Linanthus jonesii
A. C. Sanders with B. Pitzer, D. Charlton
1986-3-1
6007
Riverside
Chuckwalla Valley, 1 mi W of Hayfield Lake, 2 mi SW of pumping station on a small cutoff rd from Hayfield Rd to the dirt rd to Colorado River Aqueduct
426
Comment
UCR114126
Linanthus jonesii
B. G. Pitzer, J. Ross
1998-3-8
3608 .2
Riverside
Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10
427
Comment
UCR41542
Linanthus jonesii
A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart
1986-3-1
6007
Riverside
Chuckwalla Valley, 1 mi west of Hayfield Lake, 2 mi SW of the pumping station on a small cutoff road from Hayfield Rd to the dirt road to the Colorado River Aqueduct
427
Comment
UCSB5121
Loeseliastrum matthewsii
Broder, Richard
1958-03
Riverside
16.5 miles west of Desert Center on US 60-70
Comment
SBBG87389
Loeseliastrum schottii
A. C. Sanders with B. Pitzer, D. Charlton
1986-3-1
6012
Riverside
Chuckwalla Valley, 1 mi W of Hayfield Lake, 2 mi SW of pumping station on a small cutoff rd from Hayfield Rd to the dirt rd to Colorado River Aqueduct
426
Comment
POM195609
Lupinus
Marcus E. Jones
1930-4-2
s.n.
Riverside
Hayfields
Comment
CLARK-A1528-2816
Lupinus arizonicus
John C. Roos
1947-2-15
3268
Riverside
Eagle Mountains
Comment
JEPS48838
Lupinus arizonicus
Marjorie D. Clary
1932-5-9
945
Riverside
Shavers Well to Desert Center; Shavers Well to Desert Center
Comment
SBBG3528
Lupinus arizonicus
K. K. Muller
1952-4-6
560
Riverside
E of Shaver Summit
Comment
UCR114148
Lupinus arizonicus
B. G. Pitzer, J. Ross
1998-3-8
3614
Riverside
Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10
427
Comment
UCR41601
Lupinus arizonicus
A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart
1986-3-1
6022
Riverside
Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station
412
Comment
RSA8059
Lupinus caudatus
H. A. Barker
1927-7-15
806
Lassen
Desert east of Beckwith near highway.
Comment
POM14254
Lycium andersonii
Philip A. Munz, D. D. Keck
1922-4-9
4811
Riverside
South base of Eagle Mtns.
183
Comment
UC218100
Lycium andersonii
P. A. Munz, D. Keck
1922-4-9
4811
Riverside
s base Eagle Mtns.; Colorado Desert
182
Comment
POM14253
Malacothrix coulteri
P. A. Munz
1922-4-9
4813
Riverside
Hayfields, Chuckwalla Valley
152
Comment
RSA721133
Malacothrix coulteri
J. R. Bruff
1928-4-3
175
Riverside
13 miles W of Desert Center.
Comment
SBBG87399
Malacothrix coulteri
A. C. Sanders with D. Charlton, B. Pitzer
1986-3-1
6029
Riverside
NW end of Hayfield Lake, ca. 0.5 mi SW of the pumping station
411
Comment
UC218090
Malacothrix coulteri
P. A. Munz, D. Keck
1922-4-9
4813
Riverside
Chuckwalla Valley, Hayfields Colorado Desert, Chuckwalla Valley, Hayfields
152
Comment Read comments May 1 2006
UCR112969
Malacothrix coulteri
B. G. Pitzer, T. Tennant
1998-2-21
3534
Riverside
Sonoran (Colorado) Desert, Hayfield Dry Lake, on the lakebed, 1/2 to 3/4 mi.le SE of the pumping station
412
Comment
UCR41804
Malacothrix coulteri
A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart
1986-3-1
6029
Riverside
Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station
412
Comment
SBBG8611
Malacothrix glabrata
C. H. Muller
1952-4-6
9498
Riverside
ca. 2 mi E of Shavers Summit, E of S entrance of Joshua Tree Nat Monument
Comment
RSA0043065
Marina parryi
Duncan S. Bell, LeRoy Gross
2014-3-20
6267
Riverside
Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake.
609
Comment
SEINET2063249
Marina parryi
B. Pitzer
1998-2-1
3444
Riverside
Hayfield Dry Lake: Alluvial fan on N side of lakebed, from paved road down to lakebed.
426
Comment
UCR102745
Marina parryi
B. G. Pitzer
1998-2-1
3444
Riverside
Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed
427
Comment
UCR41602
Marina parryi
A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart
1986-3-1
6024
Riverside
Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station
412
Comment
UCR96204
Matelea parvifolia
A. C. Sanders, G. Helmkamp, O. Clarke, B. Pitzer
1996-11-9
19648
Riverside
Sonoran (Colorado) Desert, Orocopia Mtns., near 'Bob's Cabin', 5 mi. (air) south of Hayfield Pump Sta., east of Maniobra Valley, central section of arroyo (N of peak 2552 to Bench Mark 1899)
610
Comment
UCR163513
Mentzelia
B. G. Pitzer, J. Ross
1998-3-8
3600
Riverside
Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10
427
Comment
POM14265
Mentzelia affinis
P. A. Munz
1922-4-9
4812
Riverside
Hayfields, Chuckawalla Valley.
152
Comment
RSA7885
Mentzelia albicaulis
H. A. Barker
1927-7-15
807
Lassen
Desert east of Beckwith [Beckwourth], near highway.
Comment Read comments Dec 30 2016
UCSB4255
Mentzelia albicaulis
Beeks, Richard
1952-4-5
Riverside
12 miles east of Shaver Summit
Comment
SEINET3094632
Mentzelia involucrata
Barbara Gayle Pitzer
1998-2-1
3445
Riverside
Sonoran (Colorado) Desert; Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed
427
Comment
UCR102746
Mentzelia involucrata
B. G. Pitzer
1998-2-1
3445
Riverside
Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed
427
Comment
RSA0021559
Mentzelia jonesii
Duncan S. Bell, Aaron Sims
2012-3-10
2046
Riverside
Orocopia Mountains; northeast section of range, approximately 4 air miles east of Chiriaco Summit.
497
Comment
UC479436
Mentzelia multiflora subsp. longiloba
Marcus E. Jones, A. M.
1931-9-15
Riverside
Hayfields
Comment
SBBG4859
Mentzelia veatchiana
C. H. Muller
1952-4-6
9500
Riverside
2 mi E of Shavers Summit, E of S gate to Joshua Tree National Monument
Comment
SBBG4882
Mentzelia veatchiana
C. H. Muller
1952-4-6
9500
Riverside
2 mi E of Shavers Summit, E of S gate to Joshua Tree Nat Monument
Comment
CLARK-A1528-4233
Mimulus bigelovii
John C. Roos
1947-2-15
3260
Riverside
Hayfield
Comment
UCR133024
Mimulus bigelovii
Bern Schwenn
1998-5-4
s.n.
Riverside
Sonoran (Colorado) Desert, Eagle Mountains, nameless canyon below Carey's Castle, NW of Red Butte Wash, c. 3 miles east of Chiriaco Summit and 1 mile or so north of I-10
640
Comment
JOTR28918
Mimulus bigelovii var. bigelovii
La Doux, Tasha
2005-2-7
1154
Riverside
Joshua Tree National Park. Above Hayfield Dry Lake
553
Comment
RSA172237
Mimulus bigelovii var. bigelovii
Robert F. Thorne
1963-3-29
32432
Riverside
Eagle Mountains, Pumping Station, S side of Eagle Mountains; ca. 12 miles W of Desert Center
535
Comment
UCR102742
Monoptilon bellioides
B. G. Pitzer
1998-2-1
3440
Riverside
Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed
427
Comment
UCR114120
Monoptilon bellioides
B. G. Pitzer, J. Ross
1998-3-8
3619
Riverside
Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10
427
Comment
RSA289621
Muilla maritima
D. A. Young
1969-5-25
P 491
San Bernardino
end of Haven Avenue N. of Chaffey College
457
Comment
SBBG118490
Myriopteris parryi
L. C. Wheeler
1964-10-17
8638
Riverside
S of Hayfield Reservoir (lake), north side Orocopia Mtns
Comment
UC217897
Nama
P. A. Munz, D. Keck
1922-4-13
4931
Riverside
Hayfields Colorado Desert, Chuckawalla Valley, Hayfields (Chuckawalla Valley, Colorado Desert, dry basin)
152
Comment
UCSB5309
Nama demissa
Beeks, Richard
1952-4-5
Riverside
12 miles E. of Shavers Summit
Comment
POM14101
Nama hispida var. revoluta
P. A. Munz, D. D. Keck
1922-4-13
4931
Riverside
Hayfields, Chuckwalla Valley
152
Comment
HSC101509
Nama hispida var. spathulata
J. P. Smith, J. O. Sawyer, R. J. Cole
2010-4-14
12754
Riverside
Roadside
455
Comment
POM13914
Nama hispida var. spathulata
P. A. Munz
1922-4-9
4803
Riverside
Hayfields, Chuckawalla Valley.
152
Comment
SEINET3145433
Nama hispida var. spathulata
R. W. Spellenberg, N. Zucker
2001-3-24
13180
Riverside
Just N of IH-10 on Hayfield Rd., ca. 30 km W of Desert Center, ca. 5 km E of Chiriaco Summit
440
Comment
POM178629
Nemacladus orientalis
Marcus E. Jones
1930-4-2
26444
Riverside
Hayfields
Comment
POM316889
Nemacladus orientalis
Marcus E. Jones
1930-4-2
26444
Riverside
Hayfields
Comment
UCR114125
Nemacladus orientalis
B. G. Pitzer, J. Ross
1998-3-8
3608 .3
Riverside
Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10
427
Comment
RSA8061
Nicotiana attenuata
H. A. Barker
1927-7-15
805
San Bernardino
Desert east of 'Beckwith', near highway.
Comment Read comments Dec 30 2016
RSA0042856
Nicotiana obtusifolia
Duncan S. Bell, LeRoy Gross
2014-3-20
6272
Riverside
Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake.
609
Comment
RSA644222
Nicotiana obtusifolia
Victor W. Steinmann, P. I. Moscosa, T. S. Ross
1998-4-14
1362
Riverside
Orocopia Mountains, 1.5 km southwest of the Hayfield exit of I-10; ca. 600 m. Along a small wash on north-facing slope.
183
Comment
SEINET3240343
Nicotiana obtusifolia
V. W. Steinmann, P. I. Moscosa, T. S. Ross
1998-1
1362
Unknown
Riveside Co.: Orocopia Mountains, 1.5 km southwest of the Hayfield exit of I-10; T6S R13E, S 1/2 of SW 1/4 of sec. 8
600
Comment Read comments Jan 7 2016
CAS-BOT-BC131850
Nolina bigelovii
A. C. Sanders; G. Helmkamp; O. Clarke; B. Pitzer; et al.
1996-11-9
19645
Riverside
Colorado Desert: Orocopia Mtns., near Bob's Cabin, 5 mi. (air) S of Hayfield Pump Sta., E of Maniobra V., central sec. of (N of peak 2552 to BMk 1899) arroyo
610
Comment
POM258905
Nolina bigelovii
E. C. Jaeger
1939-12-3
s.n.
Riverside
Canyon of Orocopia Mountains, south of Hayfield reservoir.
427
Comment
RSA628244
Nolina bigelovii
A. C. Sanders, G. K. Helmkamp, O. F. Clarke, B. Pitzer, et al.
1996-11-9
19645
Riverside
Colorado Desert: Orocopia Mountains., near ''Bob's Cabin'', 5 mi. (air) S of Hayfield Pump Station, E of Maniobra V., central sect. of (N of peak 2552 to BMk 1899) arroyo.
610
Comment
SD227672
Nolina bigelovii
A. C. Sanders, G. Helmkamp, O. Clarke, B. Pitzer, et al
1996-11-9
19645
Riverside
Colorado Desert: Orocopia Mtns., near Bob's Cabin, 5 mi. (air) S of Hayfield Pump Sta., E of Maniobra V., central sect. of (N of peak 2552 to BMk 1899) arroyo
609
Comment
UCR99793
Nolina bigelovii
A. C. Sanders, G. Helmkamp, O. Clarke, B. Pitzer
1996-11-9
19645
Riverside
Sonoran (Colorado) Desert, Orocopia Mtns., near 'Bob's Cabin', 5 mi. (air) south of Hayfield Pump Sta., east of Maniobra Valley, central section of arroyo (N of peak 2552 to Bench Mark 1899)
610
Comment
UCSB4445
Oenothera deltoides subsp. deltoides
Broder, Richard
1958-3-1
Riverside
16.6 miles west of Desert Center on U. S. 60-70
Comment
UCSB4503
Oenothera deltoides subsp. deltoides
Beeks, Richard
1952-4-5
Riverside
12 miles E. of Shaver Summit
Comment
UCR114165
Oenothera primiveris
B. G. Pitzer, J. Ross
1998-3-8
3617
Riverside
Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10
427
Comment
UCR41640
Oenothera primiveris
A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart
1986-3-1
6030
Riverside
Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station
412
Comment
POM13025
Oenothera primiveris subsp. bufonis
P. A. Munz, D. D. Keck
1922-4-13
4922
Riverside
Eagle Mts, Colorado Desert.
213
Comment
UCR117377
Oligomeris linifolia
B. G. Pitzer
1998-2-1
3446
Riverside
Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed
427
Comment
UCR244299
Palafoxia arida var. arida
Jim Andre
2012-4-15
20860
Riverside
Sonoran (Colorado) Desert, west end of Hayfield Dry Lake, 0.3 mi. N. of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10
395
Comment
VVC2045
Panicum hirticaule var. hirticaule
Tim Thomas, Alice Karl
2011-10-18
5530
Riverside
Sonoran Desert, Hayfield Lake 4 miles east of Chiriaco Summit; just north of Hwy 10. In northwest portion of lake bed.
437
Comment
RSA791480
Parkinsonia florida
Jim Andre
2012-4-15
20852
Riverside
West end of Hayfield Dry Lake, 0.3 mi. N of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10.
395
Comment
UCR244308
Parkinsonia florida
Jim Andre
2012-4-15
20852
Riverside
Sonoran (Colorado) Desert, west end of Hayfield Dry Lake, 0.3 mi. N. of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10
395
Comment
POM268769
Pectis papposa
Marcus E. Jones
1929-9-16
s.n.
Riverside
Hayfield, Near Desert Center. Colorado Desert.
Comment
RSA778323
Pectis papposa
Amber Swanson
2011-10-9
652
Riverside
Around the Hayfields ext N of Hwy I-10.
426
Comment
SEINET3828352
Pectis papposa
Amber Swanson
2011-1
652
Riverside
Around the Hayfields ext N of Hwy I-10 UTM Zone
426
Comment
VVC2317
Pectis papposa
Tim Thomas, Alice Karl
2011-10-18
5529
Riverside
Sonoran Desert, Hayfield Lake 4 miles east of Chiriaco Summit; just north of Hwy 10. In northwest portion of lake bed.
437
Comment
HSC82816
Pectocarya heterocarpa
A. C. Sanders, B. Pitzer, D. Charlton
1986-3-1
6017
Riverside
Chuckwalla Valley, 1 mi. W of Hayfield Lake, 2 mi. SW of the pumping station on small cutoff road from Hayfield Rd. to the dirt road to the Colorado River Aqueduct
427
Comment
SBBG87400
Pectocarya heterocarpa
A. C. Sanders with B. Pitzer, D. Charlton
1986-3-1
6017
Riverside
Chuckwalla Valley, 1 mi W of Hayfield Lake, 2 mi SW of pumping station on a small cutoff rd from Hayfield Rd to the dirt rd to Colorado River Aqueduct
426
Comment
OBI38358
Pectocarya peninsularis
A. C. Sanders, B. Pitzer, & D. Charlton, D. Charlton
1986-3-1
6017
Riverside
Chuckwalla Valley, 1 mi W of Hayfield Lake, 2 mi SW of the pumping station on a small cutoff rd from Hayfield rd to the dirt rd to the Colorado River Aqueduct (T5S, R13E, SW 1/4 sec 30)
427
Comment
UCR41528
Pectocarya peninsularis
A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart
1986-3-1
6017
Riverside
Chuckwalla Valley, 1 mi west of Hayfield Lake, 2 mi SW of the pumping station on a small cutoff road from Hayfield Rd to the dirt road to the Colorado River Aqueduct
427
Comment
SBBG6315
Pectocarya platycarpa
C. H. Muller
1952-4-6
9505
Riverside
2 mi E of Shavers Summit, E of S gate to Joshua Tree Nat Monument
Comment
UCR41560
Pectocarya platycarpa
A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart
1986-3-1
6018
Riverside
Chuckwalla Valley, 1 mi west of Hayfield Lake, 2 mi SW of the pumping station on a small cutoff road from Hayfield Rd to the dirt road to the Colorado River Aqueduct
427
Comment
JOTR28813
Pectocarya recurvata
La Doux, Tasha
2005-2-7
1081
Riverside
Joshua Tree National Park. Above Hayfield Dry Lake
553
Comment
SBBG6313
Pectocarya recurvata
H. and M. Dearing
1937-4-10
1538
Riverside
near Hayfield
Comment
UCR41526
Pectocarya recurvata
A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart
1986-3-1
6020
Riverside
Chuckwalla Valley, 1 mi west of Hayfield Lake, 2 mi SW of the pumping station on a small cutoff road from Hayfield Rd to the dirt road to the Colorado River Aqueduct
427
Comment
JOTR28919
Pentagramma triangularis subsp. maxonii
La Doux, Tasha
2005-2-7
1155
Riverside
Joshua Tree National Park. Above Hayfield Dry Lake
553
Comment
RSA0042375
Peritoma arborea
Duncan S. Bell, LeRoy Gross
2014-3-20
6282
Riverside
Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake.
609
Comment
SEINET7248311
Peritoma arborea
Duncan S. Bell, LeRoy Gross
2014-1
6282
Riverside
Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake.
609
Comment
UCR102743
Perityle emoryi
B. G. Pitzer
1998-2-1
3441
Riverside
Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed
427
Comment
LA49840
Petalonyx thurberi subsp. thurberi
Henry J. Thompson;
1960-4-30
3260
Riverside
along US Highway 60 and 70, opposite Hayfield Dry Lake, 14 mi. W of Desert Center
457
Comment
CAS-BOT-BC326769
Peucephyllum schottii
Robert F. Thorne
1963-3-29
32441
Riverside
South side of Eagle Mountains near pumping station of Metropolitan Water District about 12 miles west of Desert Center
Comment
CLARK-A1528-2030
Peucephyllum schottii
John C. Roos
1947-2-15
3247
Riverside
Eagle Mountains
Comment
POM14297
Peucephyllum schottii
P. A. Munz, D. D. Keck
1922-4-9
4810
Riverside
South base of Eagle Mtns.
183
Comment
RSA167477
Peucephyllum schottii
R. F. Thorne
1963-3-29
32441
Riverside
Mouth of arroyo near Eagle Mt. Pumping Station, S side of Eagle Mts., ca. 12 miles W of Desert Center.
533
Comment Read comments Dec 13 2011
SBBG8666
Peucephyllum schottii
K. K. Muller
1952-4-6
559
Riverside
E of Shaver Summit
Comment
SEINET2042416
Phacelia crenulata
B. Pitzer
1998-2-1
3442
Riverside
Hayfield Spring Quad 7.5': Hayfield Dry Lake, alluvial fan on N side of lakebed, from paved road lakebed.
427
Comment
UCR117376
Phacelia crenulata
B. G. Pitzer
1998-2-1
3442
Riverside
Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed
427
Comment
RSA0042114
Phoradendron californicum
Duncan S. Bell, LeRoy Gross
2014-3-20
6285
Riverside
Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake.
609
Comment
RSA220378
Phoradendron californicum
C. W. Tilforth, John Dourley
1971-6-14
344
Riverside
Between Chiriaco Summit and Red Butte Wash, aong aqueeduct maintenance rd.
534
Comment
RSA640171
Phoradendron californicum
Louis C. Wheeler
1964-10-17
8641
Riverside
North side of Orocopic Mountains: South of Hayfield Reservoir.
Comment
RSA640172
Phoradendron californicum
Louis C. Wheeler
1964-10-17
8640
Riverside
North side of Orocopic Mountains: South of Hayfield Reservoir.
Comment
SD146132
Phoradendron californicum
B. Pitzer
1998-3-8
3602
Riverside
Colorado Desert; S-facing fan on N side of Hayfield lake, along road to pumping plant
427
Comment
UC1971180
Phoradendron californicum
Louis C. Wheeler
1964-10-17
8641
Riverside
North side of Orocopic Mountains: South of Hayfield Reservoir.
Comment
UC1971181
Phoradendron californicum
Louis C. Wheeler
1964-10-17
8640
Riverside
North side of Orocopic Mountains: South of Hayfield Reservoir.
Comment
UCR114127
Phoradendron californicum
B. G. Pitzer, J. Ross
1998-3-8
3602
Riverside
Sonoran (Colorado) Desert, S-facing fan on north side of Hayfield Lake, along road to pumping plant.
427
Comment
UCR139944
Phoradendron californicum
L. C. Wheeler
1964-10-17
8641
Riverside
Sonoran Desert, North side of Orocopia Mountains, south of Hayfield Reservoir
457
Comment
RSA264426
Physalis crassifolia
C. W. Tilforth, Jeff Barnes
1976-7-20
1210
Riverside
Along power line road n.e. of Chiriaco Summit between Indio and Desert Center, Riverside County, CA. Colorado Desert.
Comment
UCR102739
Physalis crassifolia
B. G. Pitzer
1998-2-1
3435
Riverside
Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed
427
Comment
RSA698379
Plantago ovata
J. Russell Bruff
1928-4-3
s.n.
Riverside
13 miles W of Desert Center
Comment
POM14263
Plantago ovata var. fastigiata
P. A. Munz, D. D. Keck
1922-4-9
4816
Riverside
Hayfields, Chuckawalla Valley.
152
Comment
RSA0041455
Pleuraphis rigida
Duncan S. Bell, LeRoy Gross
2014-3-20
6278
Riverside
Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake.
609
Comment
UC677602
Pleuraphis rigida
A. A. Beetle
1942-4-22
3183
Riverside
Rt. 60 and 70, 5 mi e Shaver's Summit; e of Shaver's Summit
Comment
CAS-BOT-BC356338
Psathyrotes ramosissima
Roxana S. Ferris
1918-6-15
996
Riverside
25 miles east of Mecca on Mecca Blythe Road
Comment
CAS-BOT-BC356345
Psathyrotes ramosissima
Roxana S. Ferris
1918-6-15
996
Riverside
25 miles east of Mecca on Mecca-Blythe Road
Comment
RSA263880
Psathyrotes ramosissima
C. W. Tilforth
1976-7-20
1212
Riverside
Along power line road n.e. of Chiriaco Summit between Indio & Desert Center, Colorado Desert.
Comment
RSA643307
Psorothamnus schottii
R. D. Goeden, D. W. Ricker
1971-3-2
s.n.
Imperial
Salton Trough: Signal Mountain, 1.5 mi. S of Hwy 98 and 0.5 mi. W of Mount Signal Rd.
15
Comment
RSA404273
Psorothamnus spinosus
Christopher Davidson
1974-6-15
2292
Riverside
Interstate 10, ca. 5 mi. E of Chiriaco Summit.
457
Comment
UCR112974
Pterostegia drymarioides
B. G. Pitzer, T. Tennant
1998-2-21
3542
Riverside
Sonoran (Colorado) Desert, S-facing fan on north side of Hayfield Lake, along road to pumping plant.
427
Comment
SBBG8705
Rafinesquia neomexicana
C. H. Muller
1952-4-6
9499
Riverside
ca. 2 mi E of Shavers Summit, E of S entrance of Joshua Tree Nat Monument
Comment Read comments Apr 24 2011
RSA0041456
Salvia columbariae
Duncan S. Bell, LeRoy Gross
2014-3-20
6277
Riverside
Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake.
609
Comment
RSA175251
Salvia columbariae
Robert F. Thorne
1963-3-29
32435
Riverside
Mouth of arroyo near Eagle Mt. Pumping Station, S side of Eagle Mts., ca. 12 miles W of Desert Center.
534
Comment Read comments Apr 24 2011
SD146234
Salvia columbariae
B. Pitzer, W. Ross
1998-3-8
3599
Riverside
Colorado desert, N side of Hayfield Lake between lakebed and Hwy I-10
412
Comment
UCR114121
Salvia columbariae
B. G. Pitzer, J. Ross
1998-3-8
3599
Riverside
Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10
427
Comment
CLARK-A1528-4964
Salvia mohavensis
John C. Roos
1947-2-15
3234
Riverside
Eagle Mountains
Comment
RSA289611
Sambucus mexicana
D. A. Young
1969-5-25
P 492
San Bernardino
end of Haven Avenue N. of Chaffey College
457
Comment
HSC101533
Schismus barbatus
J. P. Smith, J. O. Sawyer, R. J. Cole
2010-4-14
12755
Riverside
Roadside
455
Comment
UCR102747
Schismus barbatus
B. G. Pitzer
1998-2-1
3447
Riverside
Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed
427
Comment
UCR114145
Schismus barbatus
B. G. Pitzer, J. Ross
1998-3-8
3606
Riverside
Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10
427
Comment
RSA0041451
Scutellaria mexicana
Duncan S. Bell, LeRoy Gross
2014-3-20
6286
Riverside
Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake.
609
Comment
RSA0041946
Selaginella eremophila
Duncan S. Bell, Loraine Washburn
2014-4-9
6589
Riverside
Orocopia Mountains; northeast section of range; approximately 3.75 air miles south of Hayfields Lake.
551
Comment
RSA641073
Selaginella eremophila
Louis Cutter Wheeler
1964-10-17
8639
Riverside
North side of Orocopic Mountains: South of Hayfield Reservoir.
Comment Read comments Sep 3 2013
SBBG118800
Selaginella eremophila
L. C. Wheeler
1964-10-17
8639
Riverside
Orocopia Mtns, S of Hayfield Reservoir
Comment
SD181812
Selaginella eremophila
Louis C. Wheeler
1964-10-17
8639
Riverside
North slope of Orocopia Mountains, southerly from Hayfield Reservoir, below water shedding sloping rock faces in sun.
Comment
SEINET3864516
Selaginella eremophila
Louis C. Wheeler
1964-10-17
8639
Riverside
North slope of Orocopia Mountains. Southerly from Hayfield Reservoir (lake).; 0
Comment
UCR147704
Selaginella eremophila
L. C. Wheeler
1964-10-17
8639
Riverside
Sonoran (Colorado) Desert, N slope of Orocopia Mountains; southerly from Hayfield Reservoir (lake)
Comment
RSA0041457
Senna armata
Duncan S. Bell, LeRoy Gross
2014-3-20
6276
Riverside
Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake.
609
Comment
NY43319
Simmondsia chinensis
C. R. Annable
1995-3-16
2290
Riverside
Chiriaco Summit, 0.8km N of I-10
Comment
RSA0043070
Simmondsia chinensis
Duncan S. Bell, LeRoy Gross
2014-3-20
6288
Riverside
Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake.
609
Comment
SBBG71063
Simmondsia chinensis
R. Hoffmann
1929-2-9
Riverside
Mecca-Blythe
Comment
SEINET7248312
Simmondsia chinensis
Duncan S. Bell, LeRoy Gross
2014-1
6288
Riverside
Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake.
609
Comment
SBBG87391
Sisymbrium irio
A. C. Sanders with B. Pitzer, D. Charlton
1986-3-1
6013
Riverside
Chuckwalla Valley, 1 mi W of Hayfield Lake, 2 mi SW of pumping station on a small cutoff rd from Hayfield Rd to the dirt rd to Colorado River Aqueduct
426
Comment
UCR103723
Sisymbrium irio
B. G. Pitzer
1998-2-1
3432
Riverside
Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed
427
Comment
UCR112970
Sisymbrium irio
B. G. Pitzer, T. Tennant
1998-2-21
3532
Riverside
Sonoran (Colorado) Desert, Hayfield Dry Lake, on the lakebed, 1/2 to 3/4 mi.le SE of the pumping station
412
Comment
UCR41557
Sisymbrium irio
A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart
1986-3-1
6013
Riverside
Chuckwalla Valley, 1 mi west of Hayfield Lake, 2 mi SW of the pumping station on a small cutoff road from Hayfield Rd to the dirt road to the Colorado River Aqueduct
427
Comment
CLARK-A1528-3245
Sphaeralcea ambigua
John C. Roos
1947-2-15
3240
Riverside
Eagle Mountains
Comment
RSA0042374
Sphaeralcea ambigua
Duncan S. Bell, LeRoy Gross
2014-3-20
6284
Riverside
Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake.
609
Comment
UCSB4097
Sphaeralcea ambigua
Beeks, Richard
1952-4-5
Riverside
12 miles E. of Shavers Summit
Comment
RSA172244
Sphaeralcea ambigua subsp. ambigua
Robert F. Thorne
1963-3-29
32433
Riverside
Eagle Mountains, Pumping Station, S side of Eagle Mountains; ca. 12 miles W of Desert Center
534
Comment
RSA445071
Sphaeralcea ambigua subsp. ambigua
D. A. Young
1969-3-28
p- 391
Riverside
At end of Hayfield Rd., S of Interstate Hiway 10.
305
Comment
RSA23269
Sphaeralcea ambigua var. ambigua
Ernest Braunton
1940-3-4
2029
Riverside
East of Shaver Summit
Comment
JEPS67348
Sphaeralcea angustifolia
Marjorie D. Clary
1931-11-29
447
Kern
Hayfields. Chuckawalla Mts.
Comment
UC217886
Sphaeralcea angustifolia
P. A. Munz and D. Keck
1922-4-13
4928
Riverside
Hayfields; Colorado Desert, Chuckawalla Valley
Comment
UCR112967
Sphaeralcea emoryi
B. G. Pitzer, Tracy Tennant
1998-2-21
3536
Riverside
Sonoran (Colorado) Desert, Hayfield Dry Lake, on the lakebed, 1/2 to 3/4 mi.le SE of the pumping station
412
Comment
UCR41618
Sphaeralcea emoryi subsp. nevadensis
A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart
1986-3-1
6028
Riverside
Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station
412
Comment
RSA353591
Sphaeralcea emoryi var. nevadensis
A. C. Sanders, D. Charlton, B. Pitzer
1986-3-1
6028
Riverside
Hayfield Lake, NW end of the lake ca. 1/2 mi. SW of the pumping station.
412
Comment
UCR114143
Stillingia linearifolia
B. G. Pitzer, J. Ross
1998-3-8
3603
Riverside
Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10
427
Comment
UC1595086
Stylocline sonorensis
Marcus E. Jones, A. M.
1930-4-2
25845
Riverside
n Chuckwalla Mts.; Colorado Desert, Hayfields
Comment
CAS-BOT-BC220981
Teucrium cubense
P. A. Munz; D. Keck
1922-4-13
4929
Riverside
Colo. Desert. Hayfields, Chuckwalla Valley
152
Comment
POM184549
Teucrium cubense subsp. depressum
C. L. Hitchcock
1932-4-7
12197
Riverside
the Hayfields.
Comment
POM187201
Teucrium cubense subsp. depressum
Marcus E. Jones
1931-9-15
28745
Riverside
Hayfields. No. Colorado Desert.
Comment
UC218015
Teucrium cubense subsp. depressum
P. A. Munz, D. Keck
1922-4-13
4929
Riverside
Hayfields; Colorado Desert, Chuckwalla Valley
152
Comment Read comments Mar 2 2014
UC479248
Teucrium cubense subsp. depressum
Marcus E. Jones, A. M.
1931-9-15
28743
Riverside
Hayfields
Comment
UC494393
Teucrium cubense subsp. depressum
C. L. Hitchcock
1932-4-7
12197
Riverside
Hayfields; e Riverside County
Comment
UC884408
Teucrium cubense subsp. depressum
P. A. Munz, D. Keck
1922-4-13
4929
Riverside
Hayfields; Colorado Desert, Chuckwalla Valley
152
Comment
UCR114117
Thelypodium lasiophyllum
B. G. Pitzer, J. Ross
1998-3-8
3612
Riverside
Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10
427
Comment
UCR41559
Thelypodium lasiophyllum
A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart
1986-3-1
6016
Riverside
Chuckwalla Valley, 1 mi west of Hayfield Lake, 2 mi SW of the pumping station on a small cutoff road from Hayfield Rd to the dirt road to the Colorado River Aqueduct
427
Comment
SEINET2042415
Tribulus terrestris
B. Pitzer
1998-2-1
3438
Riverside
Hayfield Spring Quad 7.5': Hayfield Dry Lake, alluvial fan on N side of lakebed, from paved road lakebed.
427
Comment
UCR117373
Tribulus terrestris
B. G. Pitzer
1998-2-1
3438
Riverside
Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed
427
Comment
RSA475367
Trichoptilium incisum
D. A. Young
1969-3-28
p 429
Riverside
At end of Hayfield Rd., S of Interstate Hiway 10.
305
Comment
SEINET2042414
Trichoptilium incisum
B. Pitzer
1998-2-1
3434
Riverside
Hayfield Spring Quad 7.5': Hayfield Dry Lake, alluvial fan on N side of lakebed, from paved road lakebed.
427
Comment
UCR117375
Trichoptilium incisum
B. G. Pitzer
1998-2-1
3434
Riverside
Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed
427
Comment
RSA0041944
Tridens muticus
Duncan S. Bell, Loraine Washburn
2014-4-10
6591
Riverside
Orocopia Mountains; northeastern section of range; approx. 3.5 air miles south of Hayfields Lake.
538
Comment
CAS-BOT-BC323094
Trixis californica
James Henrickson
1963-3-29
1222
Riverside
12 miles west of Desert Center near Eagle Mountain Pumping Station
533
Comment
CLARK-A1528-2132
Trixis californica
John C. Roos
1947-2-15
3251
Riverside
Eagle Mountains
Comment
RSA171050
Trixis californica
R. F. Thorne
1963-3-29
32431
Riverside
Eagle Mountains, Pumping Station, S side of Eagle Mountains; ca. 12 miles W of Desert Center
533
Comment
RSA0041453
Viguiera parishii
Duncan S. Bell, LeRoy Gross
2014-3-20
6280
Riverside
Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake.
609
Comment
SBBG8573
Xylorhiza tortifolia var. tortifolia
H. and M. Dearing
1937-4-10
2496
Riverside
Chuckwalla Mtns, near Hayfield
Comment
UCR133028
Ziziphus obtusifolia
Bern Schwenn
1997-4-1
s.n.
Riverside
Sonoran (Colorado) Desert, Orocopia Mountains, Red Canyon Trail on north side of the mountains, 1.8 miles south of Pinto Road at I-10
518
Comment