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Specimen ID
Determination *
Collector
Collection Date
Collection Number
County
Locality
Elevation in meters
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RSA0127367
Mentzelia longiloba var. longiloba
R. Weatherby
1950-3-4
1039
Imperial
23 miles east of Holtsville at Junction of Highways 98 and 80.
61
Comment
RSA0127366
Mentzelia longiloba var. longiloba
Robert F. Thorne
1978-5-30
52161
Imperial
Algodones Dunes: N end of Dunes, ca. 2 miles SSE of Regina.
61
Comment
RSA0127365
Mentzelia longiloba var. longiloba
H. de Forest, Jack Rempel
1933-4-10
17762
Imperial
Between Hwy 80 and Ogilby.
Comment
RSA0127351
Mentzelia longiloba var. longiloba
Donald A. Johansen, Joseph A. Ewan
1932-4-13
7128
Imperial
Eastern edge of Sand Hills on Yuma Road at Ogilly turnoff.
Comment
RSA0126957
Mentzelia longiloba var. longiloba
E. K. Balls, P. C. Everett
1958-3-20
22891
Imperial
0.5 miles N along road to Ogilby and Blythe from U.S. Hwy 80.
61
Comment
RSA0126956
Mentzelia longiloba var. longiloba
Robert F. Thorne, Robert L. Rutherford
1964-4-10
33559
Imperial
East side Sand Hills, 14 miles west of Yuma on Hwy 80.
Comment
RSA0126955
Mentzelia longiloba var. longiloba
F. W. Peirson
1932-3-21
9779
Imperial
E edge of sand hills, Holtsville -Yuma Road
61
Comment
RSA0126954
Mentzelia longiloba var. longiloba
Robert F. Thorne
1977-11-26
50921
Imperial
Near jct. of Hwy I-8 and Obilby [Ogilby] Rd., just E of Algodones Dunes.
Comment
RSA0126953
Mentzelia longiloba var. longiloba
F. W. Peirson
1927-4-15
7201
Imperial
Low land along Colorado River, near Ft. Yuma.
Comment
RSA0126952MENTZELIALONGILOBA
Mentzelia longiloba var. longiloba
Christopher Davidson, Alan Romspert, H. Surprenant
1979-4-28
7773
Imperial
Off Interstate 8 on Sidewinder Rd, ca. 1.5 miles NW of Pilot Knob.
79
Comment
RSA0126951
Mentzelia longiloba var. longiloba
J. C. Roos, L. Roos
1949-4-7
4161
Imperial
All America Canal, 5 miles SE of Niland
Comment
RSA0126950
Mentzelia longiloba var. longiloba
H. de Forest, Jack Rempel
1933-4-10
18148
Imperial
Between Holtville and Algodone
Comment
RSA0126948
Mentzelia longiloba var. longiloba
L. H. Jones
1910-5-8
s.n.
Imperial
Colorado River near Pilot Knob
Comment
RSA0126947
Mentzelia longiloba var. longiloba
Bonnie M. Rich
1979-4-21
79034
Imperial
North side of All American Canal, 4.5 miles E of Power drop #2.
Comment
RSA0126946
Mentzelia longiloba var. longiloba
Roxana S. Ferris
1928-4-19
7132
Imperial
Mesa just above the bottom lands of the Colorado River on the Picacho Road, Imperial County
Comment
UCR82250
Mentzelia longiloba var. longiloba
J. M. Stewart
1994-3-21
794
Imperial
Colorado River Valley, Glamis Dunes, along Interstate Hwy 8, 1 mi. west of Brock Research Center Drive.
Comment
UCR165715
Mentzelia longiloba var. longiloba
Alex R. Van Dam
2005-4-19
s.n.
Imperial
Sonoran(Colorado) Desert, Algodones Dunes 1 to 2 mi east of the Osborne Overlook along Hwy 78, c. 3 mi west of Glamis
91
Comment
UCR163744
Mentzelia longiloba var. longiloba
B. G. Pitzer, G. R. Ballmer
2001-3-17
4268
Imperial
Sonoran (Colorado) Desert, Algodonnes Dunes, south of end of Ogilby Rd. on south side of I-8
88
Comment
UCR1509
Mentzelia longiloba var. longiloba
W. R. Moberly
1961-2-23
610223- 01
Imperial
Sonoran (Colorado) Desert, [Algonones Dunes] 7 miles west of Glamis, along the Brawley to Glamis road
61
Comment
UCR134128
Mentzelia longiloba var. longiloba
June Latting
1978-5-1
s.n.
Imperial
Sonoran (Colorado) Desert, Imperial Sand Dunes, Ogilby Road at I-8
69
Comment
UCR123769
Mentzelia longiloba var. longiloba
Steven R. Hill, K. Kramer
2001-4-27
33502
Imperial
Sonoran/Colorado Desert, north side of California Route 78, 1.7 mi west of Glamis (measured from railroad crossing), Algodones Dunes
92
Comment
UCR103658
Mentzelia longiloba var. longiloba
George K. Helmkamp, E. Helmkamp
1998-1-24
2575
Imperial
Sonoran (Colorado) Desert, between Hwy I-8 & the All-American Canal across from the Brock Research Center (c. 3 mi. east of the jct of Calif. Hwy 98 with Hwy I-8)
46
Comment
UCR101714
Mentzelia longiloba var. longiloba
B. G. Pitzer
1998-2-2
3502
Imperial
Sonoran (Colorado) Desert, extension of Sidewinder Road, S and west of Pilot Knob RV park/campground, c. 1 mi. airline SW of Pilot Knob, on and adjacent to N berm of All-America Canal, c. 3.2 road mi. past the RV park
61
Comment
UCR100855
Mentzelia longiloba var. longiloba
George K. Helmkamp, E. A. Helmkamp
1998-3-18
2873
Imperial
Sonoran (Colorado) Desert, between Hwy I-8 & the All-American Canal across from the Brock Research Center (c. 3 mi. east of the junction of Hwy Calif Hwy 98 with I-8)
46
Comment
SEINET931048
Mentzelia longiloba var. longiloba
Amadeo M. Rea
1993-1
1889
Imperial
West of Yuma, Brock Research Center Road & Interstate 8
Comment
SEINET889860
Mentzelia longiloba var. longiloba
Steven P. McLaughlin
1986-1
3136
Imperial
along frontage road north of I-8
91
Comment
SEINET889859
Mentzelia longiloba var. longiloba
D. F. Howe
1980-1
Imperial
19 miles east of Brawley on Highway 78
Comment
SEINET877378
Mentzelia longiloba var. longiloba
Steven P. McLaughlin
2005-1
10267
Imperial
Southeastern edge of Algodones Dunes, near junction of I-10 and Ogilby Road
60
Comment
SEINET842643
Mentzelia longiloba var. longiloba
Steven P. McLaughlin
1998-1
7369
Imperial
Low dunes near Colorado River
60
Comment
SEINET842642
Mentzelia longiloba var. longiloba
G. K. Helmkamp, E. Helmkamp
1998-1
2575
Imperial
Between Hwy. I-8 & the All-American Canal across from the Brock Research Center (ca. 3 miles E of the junction of Hwy. CA-98 with Hwy. I-8)
45
Comment
SEINET842534
Mentzelia longiloba var. longiloba
J. E. Bowers, S. P. McLaughlin
1981-1
2078
Imperial
Stable dunes, western edge Algodones Dunes in vicinity of Highway 78.
Comment
SD35541
Mentzelia longiloba var. longiloba
L. M. Huey
March 1945
Imperial
5 miles west of Pilot Knob.
Comment
SD175111
Mentzelia longiloba var. longiloba
Amadeo M. Rea
1993-3-18
1889
Imperial
West of Yuma, Brock Research Center Road & I-8
Comment
SD143863
Mentzelia longiloba var. longiloba
G. K. Helmkamp, E. Helmkamp
1998-1-24
2575
Imperial
Between Hwy I-8 & the All-American Canal across from the Brock Research Center (ca. 3 mi. east of the jct of Hwy CA-98 with Hwy I-8).
46
Comment
SD143862
Mentzelia longiloba var. longiloba
G. K. Helmkamp, W. A. Helmkamp
1998-3-18
2873
Imperial
Between Hwy I-8 & the All-American Canal across from the Brock Research Center (ca. 3 mi. east of the jct of Hwy CA-98 with I-8).
46
Comment
SD128689
Mentzelia longiloba var. longiloba
Darley F. Howe
1980-4-14
Imperial
19 miles east of Brawley on Highway 78
Comment
SD125142
Mentzelia longiloba var. longiloba
Steven P. McLaughlin, Janice E. Bowers
1985-3-10
2955
Imperial
In sandy soil, along frontage road north of I-8, just west of Andrade exit.
60
Comment
RSA69549
Mentzelia longiloba var. longiloba
R. S. Woglum
1940-3-10
13026
Imperial
Sonora Desert: Ogilby.
Comment
RSA649274
Mentzelia longiloba var. longiloba
Sears
1978-3-15
780
Imperial
9 mi. NE of Glamis, 2 mi. SW of Blythe, Ogilby Road Jct. Chocolate Mts.
295
Comment
RSA45527
Mentzelia longiloba var. longiloba
J. C. Roos, L. Roos
1949-4-7
4160
Imperial
Along All-America Canal, 35 miles SE of Niland.
Comment
RSA0127369
Mentzelia longiloba var. longiloba
J. Mark Porter, Susan Hobbs, Orlando Mistretta
2003-2-20
s.n.
Imperial
Algodones Dunes. Imperial Sand Dunes National Recreation Area, Algodones Wilderness.
Comment
RSA0126949
Mentzelia longiloba var. longiloba
Christopher Davidson, Alan Romspert, H. Surprenant
1979-4-28
7756
Imperial
Algondones Dunes, dirt track continutation of Ogilby Rd, ca. 1/8 mi from All American Canal.
41
Comment
POM183209
Mentzelia longiloba var. longiloba
F. R. Fosberg
1932-4-9
7750
Imperial
Colorado river across from Yuma
Comment