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Specimen ID
Determination *
Collector
Collection Date
Collection Number
County
Locality
Elevation in meters
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CAS-BOT-BC78095
Abies magnifica
John Thomas Howell
1960-7-20
35776
Plumas
Between Boiling Springs Lake and Terminal Geyser
1859
Comment
GH355273
Abies magnifica var. shastensis
J. T. Howell
1962-9-24
38843
Unknown
North side of Sunday Peak, Greenhorn Mts.
2377
Comment
CAS-BOT-BC229585
Abronia maritima
John Thomas Howell
1932-3-13
8230
Ventura
San Nicolas Island
Comment
RSA1554
Abronia maritima
J. T. Howell
1928-7-10
1087
Orange
Capistrano Beach.
0
Comment
SD113868
Acalypha californica
Darley F. Howe
1938-8-14
721
San Diego
Mesa south of lower Tia Juana Valley.
Comment
CAS-BOT-BC330609
Acer glabrum var. glabrum
John Thomas Howell
1940-7-29
15687
Fresno
Bubbs Creek, Junction Meadow
Comment
CAS-BOT-BC331629
Acer glabrum var. glabrum
John Thomas Howell
1958-8-1
34150
Fresno
Sierra Nevada. Simpson Meadow, Middle Fork of the Kings River
1828
Comment
CAS-BOT-BC331625
Acer macrophyllum
John Thomas Howell
1969-9-12
46088
El Dorado
Sierra Nevada. Near Bridal Veil Falls, 3 miles W of Riverton
Comment
RSA456
Acer macrophyllum
J. T. Howell
1927-7-26
478
Orange
Claymine Ca - on near Sierra Peak.
244
Comment
CAS-BOT-BC28672
Achillea millefolium
John Thomas Howell
1947-5-14
23163
Marin
McClure Beach
Comment
CAS-BOT-BC211912
Achnatherum coronatum
John Thomas Howell; Alice Eastwood
1937-4-24
3926
Orange
2 miles east of San Juan Hot Springs
Comment
CAS-BOT-BC260433
Achnatherum hymenoides
John Thomas Howell
1962-6-19
37839
Plumas
The Buttes, N Sierra Valley
1493
Comment
CAS-BOT-BC210770
Achnatherum nelsonii
John Thomas Howell
1941-8-1
16639
Madera
Near Garnet Lake
2956
Comment
CAS-BOT-BC216870
Achnatherum occidentale
John Thomas Howell
1943-7-18
18525
Nevada
Castle Peak
Comment
CAS-BOT-BC216879
Achnatherum occidentale
John Thomas Howell
1955-7-19
30770
Plumas
Beckwourth
1493
Comment
CAS-BOT-BC216972
Achnatherum occidentale
John Thomas Howell; Gordon H. True
1967-7-5
43170
Tulare
2.8 miles N of South Fork Kern River bridge, on road to Troy Meadow, Kern Plateau
2194
Comment
UCD55560
Achnatherum occidentale
John Thomas Howell
1942-7-31
17469
Tulare
Mt. Kaweah.
Comment
CAS-BOT-BC218603
Achnatherum occidentale subsp. pubescens
John Thomas Howell; Gordon H. True
1971-7-13
48365
Kern
Southwest of Pine Flat on rim of Kern Plateau, Sierra Nevada
Comment
CAS-BOT-BC218612
Achnatherum occidentale subsp. pubescens
John Thomas Howell
1955-7-19
30821
Lassen
East side of Beckwourth Pass, Sierra Nevada
1493
Comment
CAS-BOT-BC218634
Achnatherum occidentale subsp. pubescens
John Thomas Howell
1944-8-9
20179
Tuolumne
Near Parsons Lodge, Tuolumne Meadows
Comment
CAS-BOT-BC218059
Achnatherum pinetorum
John Thomas Howell
1949-8-5
26030
Tulare
Army pass
3505
Comment
RSA299175
Achnatherum speciosum
J. T. Howell
1958-5-23
33230
Inyo
Alabama Hills, alt 4800ft. Inyo County
1463
Comment
CAS-BOT-BC391388
Aconitum columbianum subsp. columbianum
John Thomas Howell
1946-9-1
22957
El Dorado
Echo Summit
2255
Comment
CAS-BOT-BC412883
Aconogonon davisiae
John Thomas Howell
1943-7-15
18369
Nevada
Boreal Ridge. West side of Donner Pass near Norden
2133
Comment
CAS-BOT-BC391622
Actaea rubra
John Thomas Howell
1925-9-12
1429
Alameda
Strawberry Canon [Canyon], Berkeley Hills
Comment
SD53383
Adenocaulon bicolor
Darley F. Howe
1962-8-2
3383
Del Norte
24.1 miles northeast of entrance to 6 Rivers National Forest on #199
Comment
CAS-BOT-BC139938
Adenostoma fasciculatum
John Thomas Howell
1931-4-10
6228
Santa Barbara
Ravenswood, Santa Cruz Island
Comment
RSA356
Adenostoma sparsifolium
J. T. Howell
1927-8-7
617
San Diego
Between Campo and Buckman Springs.
915
Comment
CAS-BOT-BC110715
Aegilops cylindrica
John Thomas Howell
1974-7-8
50505
Lassen
Sierra Nevada. Susanville.
1295
Comment
SD113955
Aesculus californica
Darley F. Howe
1947-6-1
1580
Kern
Greenhorn Mountains
609
Comment
CAS-BOT-BC29478
Ageratina occidentalis
J. T. Howell
1969-8-25
45897
Tulare
Near Mineral King on Farewell Gap trail near Crystal Creek
2438
Comment
RSA26483
Ageratina occidentalis
John T. Howell
1940-7-29
s.n.
Fresno
Between Charlotte Creek and Junction Meadow, Bubbs Creek
Comment
SD61054
Ageratina occidentalis
Darley F. Howe
1964-8-6
3942
Siskiyou
3.5 miles south of Happy Camp on #96, Klamouth National Forest.
149
Comment
CAS-BOT-BC295618
Agnorhiza invenusta
John Thomas Howell
1942-7-24
17050
Tulare
East Fork of Kaweah River at Cold Spring
Comment
CAS-BOT-BC29512
Agoseris
John Thomas Howell
1955-7-20
30854
Plumas
Mohawk
1371
Comment
CAS-BOT-BC29523
Agoseris apargioides
J. T. Howell
1946-5-4
21753
Marin
Dillons Beach
Comment
SD88539
Agoseris apargioides
Darley F. Howe
1972-6-25
San Mateo
7.5 miles north of Half Moon Bay.
Comment
CAS-BOT-BC15307
Agoseris heterophylla
John Thomas Howell
1924-6-10
399
Mariposa
Wawona, near the Merced River
1219
Comment
CAS-BOT-BC15340
Agoseris heterophylla
John Thomas Howell
1944-7-13
19724
Glenn
Plaskett Meadows
Comment
POM203304
Agoseris heterophylla
John T. Howell
1931-4-3
6111
Napa
Pope Creek, 7 miles from Monticello, Napa Range
Comment
CAS-BOT-BC22837
Agoseris heterophylla var. cryptopleura
John Thomas Howell
1954-5-17
29692
El Dorado
1.5 miles south of Garden Valley
Comment
RSA97655
Agoseris heterophylla var. heterophylla
J. T. Howell
1953-6-15
29093
Monterey
Hastings Reservation, Santa Lucia Mountains
Comment
CAS-BOT-BC13275
Agoseris monticola
J. T. Howell
1950-7-14
26880
Tulare
Bakeoven Meadows, South Fork of Kern River
2468
Comment
CAS-BOT-BC13238
Agoseris monticola
John Thomas Howell
1943-7-20
18629
Nevada
Near Castle Peak
Comment
POM203849
Agoseris parviflora
J. T. Howell
1934-6-14
12115
Modoc
Near Lost Lake, Warner Mts.
2439
Comment
CAS-BOT-BC13401
Agoseris retrorsa
J. T. Howell; Gordon H. True
1971-6-16
47984 a
Kern
Claraville
1920
Comment
CAS-BOT-BC127595
Agropyron cristatum
John Thomas Howell
1955-7-19
30749
Plumas
Sierra Nevada. Beckwourth.
1493
Comment
RSA299167
Agropyron desertorum
J. T. Howell
1974-7-8
50468
Lassen
Susanville
1296
Comment
UC1177042
Agrostis alba
John Thomas Howell
1943-6-20
18241
Napa
hills sw St. Helena
Comment
UC1106211
Agrostis capillaris
John Thomas Howell
1945-6-12
20955
Marin
near radio station; Point Reyes Peninsula
Comment
CAS-BOT-BC127426
Agrostis densiflora
John Thomas Howell
1947-9-6
24180
Marin
Dillons Beach.
Comment
CAS-BOT-BC127436
Agrostis densiflora
John Thomas Howell
1941-6-15
s.n.
Marin
Point Reyes Lighthouse.
Comment
SEINET10908994
Agrostis diegoensis
John Thomas Howell
1943-6-10
Howell 18236
Unknown
Hills south-west of St. Helena, Napa Co.
Comment
CAS-BOT-BC126928
Agrostis exarata
John Thomas Howell
1969-8-28
46054
Tulare
Sierra Nevada. Mineral King.
2377
Comment
CAS-BOT-BC127081
Agrostis exarata
John Thomas Howell; Gordon H. True
1973-7-31
50087
Plumas
Sierra Nevada. Summit ridge of Thompson Peak. Diamond Range.
2194
Comment
CAS-BOT-BC127256
Agrostis exarata
John Thomas Howell
1970-9-22
47242
Kern
Sierra Nevada. Along Kern River between Kernville and River Kern.
822
Comment
CAS-BOT-BC139582
Agrostis gigantea
John Thomas Howell
1960-8-22
36337
Shasta
Lassen Volcanic National Park. Manzanita Lake.
1783
Comment
CAS-BOT-BC139604
Agrostis gigantea
John Thomas Howell
1976-7-15
51837
Plumas
Sierra Nevada. Snake Lake, about 4 miles northwest of Quincy.
1219
Comment
CAS-BOT-BC139675
Agrostis gigantea
John Thomas Howell; Gordon H. True; Margaret Williams
1973-6-28
49484
Lassen
Sierra Nevada. Elysian Valley, west of Janesville.
1325
Comment
CAS-BOT-BC139717
Agrostis gigantea
John Thomas Howell
1961-9-22
36709
Butte
Sierra Nevada. Bank of Feather River, Oroville.
53
Comment
CAS-BOT-BC139738
Agrostis gigantea
John Thomas Howell
1947-7-18
23425
Los Angeles
San Gabriel Mountains. Big Pines.
2103
Comment
SEINET10509947
Agrostis gigantea
John Thomas Howell
1944-7-30
Howell s.n.
Marin
Near Locust Ave., Mill Valley.
Comment
CAS-BOT-BC139516
Agrostis hallii
John Thomas Howell
1964-6-30
40866
San Luis Obispo
Cambria.
Comment
CAS-BOT-BC139170
Agrostis idahoensis
John Thomas Howell
1942-7-26
17220
Tulare
Mineral King.
Comment
CAS-BOT-BC139179
Agrostis idahoensis
John Thomas Howell
1969-8-26
45964
Tulare
Sierra Nevada. Mineral King.
2377
Comment
CAS-BOT-BC139275
Agrostis idahoensis
John Thomas Howell; Gordon H. True
1968-7-18
4436
Mono
Sierra Nevada. Basin at north end of Saddlebag Lake, head of Lee Vining Creek.
3048
Comment
CAS-BOT-BC139310
Agrostis idahoensis
John Thomas Howell
1946-7-14
22310
Inyo
Rock Creek Lake Basin. Mosquito Flat.
3139
Comment
CAS-BOT-BC138833
Agrostis microphylla
John Thomas Howell
1943-5-15
18091
Marin
Tiburon Peninsula.
Comment
GH341255
Agrostis microphylla
J. T. Howell
1946-5-12
21777
Unknown
South end of Carson Ridge, Marin County
Comment
CAS-BOT-BC139015
Agrostis pallens
John Thomas Howell
1943-6-19
18236
Napa
Hills southwest of Saint Helena.
Comment
CAS-BOT-BC139048
Agrostis pallens
John Thomas Howell; Catherine Best
1981-6-11
54064
Marin
Point Reyes Peninsula. North Beach.
Comment
SD53147
Agrostis pallens
Darley F. Howe
1962-8-16
3444
Fresno
Shaver Lake, Sierra National Forest, under pines.
1676
Comment
CAS-BOT-BC138759
Agrostis scabra
John Thomas Howell
1958-7-22
33771 A
Fresno
Sierra Nevada. Simpson Meadow, Middle Fork of the Kings River.
1828
Comment
UC710528
Agrostis scabra
John Thomas Howell
1943-7-19
18572
Placer
Summit Valley
Comment
CAS-BOT-BC138663
Agrostis stolonifera
J. T. Howell
1965-6-23
41368
Alameda
San Leandro. Juana Street.
Comment
GH341329
Agrostis stolonifera
J. T. Howell
1947-9-6
24181
Unknown
Dillons Beach, Marin Co.
Comment
CAS-BOT-BC138534
Agrostis variabilis
John Thomas Howell
1947-8-7
23870
Inyo
Big Pines Lakes. West of Sixth Lake.
3413
Comment
RSA44148
Agrostis variabilis
J. T. Howell
1947-8-10
23966
Inyo
Near Sam Mack Lake, Big Pine Lakes.
3659
Comment
SD128700
Aliciella latifolia
Darley F. Howe
1980-5-27
Inyo
3 miles north of the Inyo/San Bernardino County line, on Highway 127
519
Comment
CAS-BOT-BC445388
Alisma plantago-aquatica
John Thomas Howell
1945-5-9
20836
Marin
Between Hamilton Field and Ignacio
Comment
SEINET12043964
Allium falcifolium
J. T. Howell
1937-1
13622
Unknown
Scott Mt. between Trinity and Siskiyou counties
Comment
CAS-BOT-BC135894
Allium haematochiton
John Thomas Howell
1928-3-2
3359
Los Angeles
Vermont Canyon [Canon], Griffith Park
Comment
CAS-BOT-BC472703
Allium lacunosum var. lacunosum
John Thomas Howell
1957-5-19
32334
Stanislaus
Mt. Oso
1005
Comment
CAS-BOT-BC470919
Allium lemmonii
John Thomas Howell
1963-7-10
39728
Alpine
Sierra Nevada, Sagebrush flat, 0.5 miles west of Monitor Pass
2529
Comment
CAS-BOT-BC472815
Allium obtusum
John Thomas Howell; Gordon H. True
1970-6-24
46686
Tulare
Summit of North Manter Pass, Big Meadow to Manter Meadow, Kern Plateau, Sierra Nevada
2499
Comment
CAS-BOT-BC472044
Allium obtusum var. obtusum
John Thomas Howell
1958-8-12
34321
Madera
Near Lake Isberg
2987
Comment
UCD138606
Allium tribracteatum
John Thomas Howell
1953-5-23
29006
Tuolumne
between Long Barn and Pinecrest.
1706
Comment
CAS-BOT-BC476786
Allium validum
John Thomas Howell
1946-7-14
22250
Inyo
Mosquito Flat, Rock Creek Lake Basin
3139
Comment
CAS-BOT-BC478003
Allium validum
John Thomas Howell
1949-8-7
26122
Tulare
Rock Creek
3169
Comment
CAS-BOT-BC171354
Alnus incana subsp. tenuifolia
John Thomas Howell
1959-9-24
34936
Plumas
Butterfly Creek near mouth. Sierra Nevada
914
Comment
CAS-BOT-BC169666
Alnus rhombifolia
John Thomas Howell
1936-8-27
12842
Trinity
near Trinity Center
Comment
CAS-BOT-BC170688
Alnus rhombifolia
John Thomas Howell
1927-7-21
2810
Orange
Santa Ana River bottom, Santa Ana Canon [canyon]
152
Comment
CAS-BOT-BC169367
Alnus rubra
John Thomas Howell
1934-3-3
11736
Sonoma
8 miles S of Fort Ross
Comment
SD51348
Alnus rubra
Darley F. Howe
1961-7-28
3073
Marin
0.3 miles above Stinson Beach on road to Mount Tamalpais
149
Comment
CAS-BOT-BC137948
Alopecurus saccatus
John Thomas Howell; Catherine Best; Wilma Follette; Gordon H. True
1981-5-21
54041
Solano
Jepson Prairie Preserve of The Nature Conservancy, in the vicinity of Olcutt Lake about 12 miles south of Dixon.
6
Comment
UC1176784
Amaranthus albus
John Thomas Howell
1939-10-15
15374
Marin
Alpine Lake
Comment
RSA201739
Amaranthus arenicola
J. T. Howell
1963-8-7
40066
Monterey
Bank of San Lorenzo Creek just south of King City
Comment
SD77859
Amaranthus blitoides
Darley F. Howe
1970-8-26
Mono
10.6 miles west of Sonora Junction on Sonora Pass Road
2500
Comment
UCD97197
Amaranthus blitoides
John Thomas Howell
1965-9-15
41387
Mono
West shore of Mono Lake on roadside.
2042
Comment
UC710617
Amaranthus deflexus
John Thomas Howell
1944-7-23
19852
Marin
San Rafael
15
Comment
UC1176783
Amaranthus powellii
John Thomas Howell
1943-9-5
Marin
Mill Valley
Comment
CAS-BOT-BC13556
Ambrosia acanthicarpa
John Thomas Howell
1962-7-12
38655
Kern
3 miles south of Kernville
822
Comment
CAS-BOT-BC13608
Ambrosia acanthicarpa
John Thomas Howell
1927-10-22
3164
Orange
In Santa Ana River bottom, Santa Ana Canyon
152
Comment
SD88352
Ambrosia chamissonis
Darley F. Howe
1972-6-22
Santa Barbara
Ocean Park, west of Lompoc
Comment
SD103509
Ambrosia dumosa
Darley Howe
1978-5-29
San Bernardino
Barstow
640
Comment
RSA769
Ambrosia psilostachya
J. T. Howell
1927-10-29
773
Orange
Bryant Ranch near Long Beach.
15
Comment
CAS-BOT-BC55622
Ambrosia psilostachya
John Thomas Howell
1956-9-30
31896
San Francisco
Embarcadero and Townsend St.
Comment
CAS-BOT-BC272962
Ambrosia salsola
John Thomas Howell; Catherine Best
1983-4-19
54721
Kern
Kern River Preserve of The Nature Conservancy, South Fork Valley near Weldon
Comment
CAS-BOT-BC142536
Amelanchier utahensis
John Thomas Howell
1945-6-20
21083
Lake
Sawmill Flat, Bartlett Mountain
1219
Comment
CAS-BOT-BC142945
Amelanchier utahensis
John Thomas Howell; Barbara T. Menzies; Roberta Shockey
1978-6-28
53129
Alpine
Subalpine slope west of Ebbetts Peak - Sierra Nevada
2712
Comment
CAS-BOT-BC28272
Amphiscirpus nevadensis
John Thomas Howell
1934-7-8
12506
Lassen
Spalding's, Eagle Lake
Comment
CAS-BOT-BC214019
Amsinckia
John Thomas Howell
1930-5-8
4751
San Benito
San Juan Grade
Comment
CAS-BOT-BC222219
Amsinckia
John Thomas Howell
1934-4-8
11826
Contra Costa
South of Antioch
Comment
GH424644
Amsinckia
J. T. Howell
1934-6-13
12085
Unknown
Surprise Valley, near Fort Bidwell
Comment
GH424764
Amsinckia
J. T. Howell
1933-5-3
11207
Unknown
San Francisco, Visitacion Valley
Comment
GH424782
Amsinckia
J. T. Howell
1933-4-15
11225
Unknown
St. Mary's College
Comment
SD71393
Amsinckia lycopsoides
John Thomas Howell
1933-5-14
11225
Contra Costa
St. Mary's College
Comment
CAS-BOT-BC54166
Amsinckia tessellata var. tessellata
John Thomas Howell
1934-6-16
12212
Modoc
Parker Creek.
1584
Comment
RSA560
Amsonia tomentosa var. tomentosa
J. T. Howell
1927-7-9
336
San Bernardino
Cactus Flats, San Bernardino Mts.
1829
Comment
UC485555
Ancistrocarphus filagineus
Thomas Howell
1892-5-11
Kern
Caliente
Comment
RSA126399
Andropogon glomeratus
J. T. Howell
1939-10-15
s.n.
Marin
Near Liberty Camp.
Comment
CAS-BOT-BC128579
Androsace septentrionalis
John Thomas Howell
1946-7-27
22793
Fresno
Unglaciated ridge northwest of Mono Pass
3657
Comment
CAS-BOT-BC400307
Anemopsis californica
John Thomas Howell
1962-7-9
38342
Kern
Isabella
762
Comment
SD50758
Angelica arguta var. breweri
Darley F. Howe
1959-8-3
2784
Plumas
Thirty miles north of Quincy on Hwy 89.
1370
Comment
CAS-BOT-BC271412
Anisocarpus scabridus
John Thomas Howell
1943-8-8
19174
Mendocino
Anthony Peak
Comment
CAS-BOT-BC64014
Anisocoma acaulis
John Thomas Howell; Gordon H. True
1971-6-16
47908
Kern
6 miles east of Claraville on road to Kelso Valley
1524
Comment
CAS-BOT-BC64774
Anisocoma acaulis
John Thomas Howell; Gordon H. True
1968-5-13
44296
Tulare
Cherry Hill Road, Poison Meadow Creek Canyon, Kern Plateau
1981
Comment
CAS-BOT-BC59244
Antennaria corymbosa
John Thomas Howell
1940-7-30
15714
Tulare
East Lake
2926
Comment
CAS-BOT-BC79886
Antennaria microphylla
John Thomas Howell
1942-8-3
17620
Tulare
Between Little Five Lakes and Kaweah Gap
Comment
CAS-BOT-BC79966
Antennaria microphylla
John Thomas Howell
1978-7-26
53202
Nevada
Boca Flats on Little Truckee River, 5 miles north of Hirschdale on road to Stampede Reservoir
1767
Comment
RSA88084
Antennaria rosea
J. T. Howell
1951-6-28
27718
Plumas
Eureka Peak.
2195
Comment
CAS-BOT-BC84705
Anthemis arvensis
J. T. Howell; T. C. Fuller; G. D. Barbe
1980-5-20
2723
Trinity
South of Trinity River bridge, west side of Hwy 3, 0.4 mile north of Coffee Creek Road
755
Comment
CAS-BOT-BC84719
Anthemis cotula
John Thomas Howell
1943-8-12
19286
Glenn
Snow Basin Creek
Comment
RSA223677
Anthriscus caucalis
J. T. Howell
1957-6-17
32689
San Francisco
Presidio, along south wall
Comment
SDSU2302
Anthriscus caucalis
D. F. Howe
1968-5-23
4524
Mendocino
3.7 miles west of Mendocino-Lake Co. line on road from Crear Lake to Hopland.
Comment
SD53103
Antirrhinum multiflorum
Darley F. Howe
1962-7-21
3332
Santa Barbara
10.6 miles south of Orcutt on #1
305
Comment
CAS-BOT-BC454512
Aphanes occidentalis
John Thomas Howell
1978-4-5
52751
Calaveras
Sierra Nevada, Camp Nine Road northeast of Vallecito.
609
Comment
CAS-BOT-BC435123
Aptenia cordifolia
John Thomas Howell
1957-9-1
32937
San Francisco
San Francisco. Sutro Heights above Point Lobos.
Comment
CAS-BOT-BC392105
Aquilegia formosa
John Thomas Howell
1951-8-19
28156
Butte
2 miles west of Pulga
365
Comment
CAS-BOT-BC392174
Aquilegia formosa
John Thomas Howell
1946-7-14
22274
Inyo
Mosquito Flat, Rock Creek Lake Basin
3139
Comment
CAS-BOT-BC409158
Aquilegia pubescens
John Thomas Howell
1969-8-27
45998
Tulare
Near Mineral King in Glaciel Valley below White Chief Mine; Sierra Nevada
2895
Comment
RSA88493
Arabis holboellii var. retrofracta
J. T. Howell
1951-7-21
28053
Tulare
White Chief Trail; Mineral King and vicinity
2591
Comment
POM304510
Arabis inyoensis
J. T. Howell
1941-7-31
16610
Madera
Ridge NW of San Joaquin Mt.
Comment
UC750492
Arctostaphylos X candidissima
John Thomas Howell
1945-6-21
21133
Lake
Sawmill Flat Bartlett Mountain
1219
Comment
CAS-BOT-BC24090
Arctostaphylos bakeri
John Thomas Howell
1933-4-2
10957
Sonoma
2 miles east of Occidental
Comment
A350171
Arctostaphylos canescens var. sonomensis
J. T. Howell
1937-4-11
12894
Unknown
Rincon Ridge, northeast of Santa Rosa
Comment
A350155
Arctostaphylos columbiana
J. T. Howell
1934-3-3
11744
Unknown
Between Fort Ross and Stewart's Point
Comment Read comments May 19 2019
SD64426
Arctostaphylos columbiana
Darley F. Howe
1966-6-8
Del Norte
Hills near Harscrabble Creek, Smith River.
120
Comment
CAS-BOT-BC25141
Arctostaphylos crustacea subsp. crinita
John Thomas Howell
1933-4-9
10985
Santa Cruz
Ano Nuevo Pines, N. Santa Cruz Co.
Comment
CAS-BOT-BC25022
Arctostaphylos densiflora
John Thomas Howell
1929-8-12
3488 a
Sonoma
Road NE of Occidental.
Comment
CAS-BOT-BC25023
Arctostaphylos densiflora
John Thomas Howell
1931-3-14
5778
Sonoma
Vine Hill District, 10 miles W of Santa Rosa.
Comment
SDSU1456
Arctostaphylos glandulosa
D. F. Howe
1939-5-12
818
San Diego
Laguna Mts.
Comment
SD51329
Arctostaphylos glandulosa
D. F. Howe
1961-7-30
Mendocino
15.3 miles from Upper Lake ranger station on road into Mendocino
1036
Comment
CAS-BOT-BC23352
Arctostaphylos glandulosa subsp. cushingiana
John Thomas Howell
1944-3-26
19343
Marin
Inverness Ridge
Comment
CAS-BOT-BC23353
Arctostaphylos glandulosa subsp. cushingiana
John Thomas Howell
1947-3-2
23038
Marin
Above Blythedale Canyon, east side of Mt. Tamalpais.
Comment
CAS-BOT-BC23218
Arctostaphylos glandulosa subsp. glandulosa
John Thomas Howell
1925-2-1
732
Marin
South side of Mt. Tamalpais
457
Comment
UC518009
Arctostaphylos glandulosa subsp. glandulosa
John Thomas Howell
1933-3-19
10868
Marin
above Mill Valley (s side of mt.); Mt. Tamalpais
Comment
SD88568
Arctostaphylos hookeri
Darley F. Howe
1972-2-17
4801
Monterey
Huckleberry Hill.
Comment
CAS-BOT-BC27192
Arctostaphylos howellii
John Thomas Howell
1930-10-25
5686
Monterey
Canyon of the Arroyo Seco River, Santa Lucia Mts.
Comment
CAS-BOT-BC27253
Arctostaphylos jepsonii
John Thomas Howell
1923-5-25
17
Mariposa
Near Stella Lake, Wawona
1219
Comment
SD71325
Arctostaphylos manzanita
John Thomas Howell
1960-7-24
35999
Tehama
In Transition Zone forest, 8.0 miles west of Mineral.
1220
Comment
CAS-BOT-BC24410
Arctostaphylos manzanita subsp. manzanita
John Thomas Howell
1976-4-2
51568
Butte
About 2 mi. from Paradise on Skyway to Chico.
396
Comment
CAS-BOT-BC24420
Arctostaphylos manzanita subsp. manzanita
John Thomas Howell
1931-2-22
5736
Calaveras
Near Mokelumne Hill.
Comment
CAS-BOT-BC38655
Arctostaphylos manzanita subsp. manzanita
John Thomas Howell
1937-4-11
12906
Sonoma
M.S. Baker's place, sw. slope of Mt. Hood
Comment
CAS-BOT-BC38668
Arctostaphylos manzanita subsp. manzanita
John Thomas Howell
1960-7-24
35998
Tehama
8 miles west of Mineral
1219
Comment
CAS-BOT-BC24253
Arctostaphylos mewukka
John Thomas Howell
1978-4-18
52851
Butte
De Sabla.
853
Comment
CAS-BOT-BC38530
Arctostaphylos mewukka subsp. truei
John Thomas Howell
1955-6-15
30488
Butte
6 mi. from Paradise on road to Pentz.
426
Comment
CAS-BOT-BC39964
Arctostaphylos nevadensis
John Thomas Howell; T. C. Fuller; G. D. Barbe
1980-5-20
53534
Trinity
Scott Mt. summit on road from Carrville to Callahan
1645
Comment
CAS-BOT-BC45563
Arctostaphylos nevadensis
John Thomas Howell; Barbara T. Menzies; Roberta Shockey
1978-6-27
53099
Alpine
E. side of Ebbetts Pass on road to Markleeville.
2377
Comment
SEINET11977804
Arctostaphylos nevadensis
T. J. Howell
1880-1
s.n.
Unknown
Mount Hood
Comment
CAS-BOT-BC46643
Arctostaphylos patula
John Thomas Howell
1931-10-11
8143
Mariposa
Wawona Valley.
Comment
SDSU2828
Arctostaphylos patula
D. F. Howe
1941-8-7
1268
Inyo
Lone Pine Creek, Sierra Nevadas.
2591
Comment Read comments Jan 24 2013
CAS-BOT-BC44855
Arctostaphylos pumila
John Thomas Howell
1965-6-15
41359
Monterey
Low hills near the Monterey Airport on Salinas road about 4 miles east of Monterey
Comment
CAS-BOT-BC44868
Arctostaphylos pumila
John Thomas Howell
1961-4-12
36482
Monterey
Seaside, Santa Lucia Mountains
Comment
GH362125
Arctostaphylos pungens
J. T. Howell
1930-3-29
4604
Unknown
the Pinnacles
Comment
CAS-BOT-BC43910
Arctostaphylos tomentosa subsp. bracteosa
John Thomas Howell
1954-3-18
29136
Monterey
10 miles east of Carmel Valley Post Office, Santa Lucia Mts.
Comment
POM203096
Arctostaphylos tomentosa subsp. tomentosiformis
J. T. Howell
1933-4-9
10987
Santa Cruz
Ano Nuevo Pines
Comment
SD53175
Arctostaphylos viscida
Darley F. Howe
1962-5-13
3217
Tulare
Tule Rivere, 5.1 miles east of entrance to Sequoia National Forest on Highway 190.
490
Comment
UCD52201
Arctostaphylos viscida
John Thomas Howell; Gordon H. True
1967-5-9
42236
Butte
Serpentine canyonside on northwest side of Feather River Canyon near Pulga Bridge, Butte County.
Comment
CAS-BOT-BC46868
Arctostaphylos viscida subsp. mariposa
John Thomas Howell
1931-2-22
5738
Calaveras
Near Mokelumne Hill
Comment
CAS-BOT-BC47386
Arctostaphylos viscida subsp. viscida
John Thomas Howell
1975-6-15
51095
Butte
about 2 miles from Paradise on Skyway to Chico
396
Comment
CAS-BOT-BC48269
Arctostaphylos viscida subsp. viscida
John Thomas Howell; Gordon H. True
1971-6-15
47753
Kern
Flying Dutchman Creek canyon on Havilah-Mt. Breckentidge Road
1188
Comment
SBBG92173
Aristida californica
D. F. Howe
1980-4-13
Imperial
Hwy 8, 6 mi E of Holtville
Comment
UCD56565
Aristida ternipes var. gentilis
John Thomas Howell; R. C. Barneby
1954-5-9
29305
Fresno
Sierra Nevada, Piedra.
170
Comment
CAS-BOT-BC90037
Arnica mollis
John Thomas Howell; Gordon H. True
1966-7-11
41726
Tulare
Horse Meadow, Kern Plateau
2255
Comment
POM303707
Arnica mollis
J. T. Howell
1944-8-10
20239
Mono
Glacier Canyon. Mt Dana.
Comment
SD113197
Artemisia douglasiana
Darley F. Howe
1935-7-4
279
San Diego
Lower Tia Juana Valley
Comment
CAS-BOT-BC90566
Artemisia dracunculus
John Thomas Howell
1927-9-24
3118
Orange
on sandy island in Santa Ana River bottom, Santa Ana [Canon] Canyon
152
Comment
CAS-BOT-BC93791
Artemisia dracunculus
John Thomas Howell; Gordon H. True
1967-9-19
43860
Tulare
Sierra Nevada - Kern Plateau, Kern River South Fork, Kennedy Meadows Campground
1859
Comment
JEPS36953
Artemisia dracunculus
John Thomas Howell
1927-11-27
3265
San Diego
twelve mi. s of springs Warners Hot Springs
Comment
CAS-BOT-BC90757
Artemisia ludoviciana subsp. incompta
John Thomas Howell; Gordon H. True
1967-9-19
43831
Tulare
Flood-plain of Kern River South Fork, Kennedy Meadows Campground, Kern Plateau
1859
Comment
CAS-BOT-BC90629
Artemisia ludoviciana subsp. incompta
John Thomas Howell
1977-8-3
52554
Alpine
slope just north of Ebbetts Pass
2682
Comment
CAS-BOT-BC90895
Artemisia pycnocephala
John Thomas Howell
1929-10-11
4456
Monterey
Ocean bluffs, Pt. Lobos
Comment
SDSU6205
Artemisia suksdorfii
D. F. Howe
1963-7-8
3620
Humboldt
2.5 miles west of Bridgeville on #36.
152
Comment
CAS-BOT-BC146254
Arundo donax
John Thomas Howell; Gordon H. True
1978-4-4
52726
Solano
Bordering Denverton Slough.
Comment
SD112853
Arundo donax
Darley F. Howe
1951-9-30
2158
San Diego
Mission Valley
Comment
SD113032
Asclepias vestita
Darley F. Howe
1947-5-5
1547
Los Angeles
Highway between Vincent and Littlerock; Mojave Desert.
Comment
CAS-BOT-BC177477
Astragalus asymmetricus
John Thomas Howell
1926-6-20
2050
Merced
Merced-Los Banos road near the San Joaquin River bridge
Comment
UC710567
Astragalus austiniae
John Thomas Howell
1943-7-18
18540
Nevada
Castle Peak
Comment
CAS-BOT-BC180475
Astragalus breweri
John Thomas Howell
1976-4-29
51621
Lake
2.5 miles south of Lakeport
426
Comment
SEINET4406614
Astragalus claranus
J. T. Howell
1931-1
Unknown
Comment
CAS-BOT-BC178456
Astragalus douglasii var. parishii
John Thomas Howell
1927-8-2
2912
Riverside
Idyllwild, Strawberry Valley, Mt. San Jacinto
1676
Comment
CAS-BOT-BC186860
Astragalus gibbsii
John Thomas Howell
1974-7-8
50462
Lassen
Susanville
1295
Comment
SD61010
Astragalus gibbsii
Darley F. Howe
1964-8-1
3910
Modoc
11 miles south of Alturas on Hwy 395
1280
Comment
CAS-BOT-BC178184
Astragalus lentiginosus var. fremontii
John Thomas Howell
1958-5-25
33357
Inyo
Carroll Creek - Sierra Nevada
1676
Comment
CAS-BOT-BC187169
Astragalus lentiginosus var. fremontii
John Thomas Howell; Gordon H. True
1971-6-16
47902
Kern
Along Kelso Creek, 15 miles south of Weldon on road to Kelso Valley
1219
Comment
CAS-BOT-BC187258
Astragalus lentiginosus var. ineptus
John Thomas Howell
1944-8-16
20652
Mono
Mono Pass
Comment
CAS-BOT-BC187269
Astragalus lentiginosus var. ineptus
John Thomas Howell; T. C. Fuller; G. D. Barbe
1981-8-11
54479
Mono
4 miles northeast of Highway 395 on Benton Crossing Road, Long Valley
2148
Comment
SD46379
Astragalus lentiginosus var. nigricalycis
Darley F. Howe
1956-4-14
2523
Kern
Temblor Range, Carneros Rocks.
Comment
CAS-BOT-BC186549
Astragalus nuttallii var. nuttallii
John Thomas Howell
1929-10-13
4487
San Luis Obispo
2 1/2 miles n. of Cambria
Comment
UC1177220
Astragalus pycnostachyus var. pycnostachyus
John Thomas Howell
1939-6-4
Marin
on road to Pt. Reyes head of Drake's Bay on road to Pt. Reyes, head of Drake's Bay
Comment
RSA380
Astragalus trichopodus var. lonchus
J. T. Howell
1928-2-7
815
Orange
Botany Garden, Rancho Santa Ana.
152
Comment
SD104853
Astragalus trichopodus var. phoxus
Darley Howe
1979-6-18
5091
Ventura
Canyon 15.7 mi S of Santa Barbara
Comment
RSA143770
Astragalus whitneyi var. lenophyllus
J. T. Howell
1943-7-20
s.n.
Nevada
Castle Peak
Comment
CAS-BOT-BC17400
Athysanus pusillus
John Thomas Howell; Gordon H. True; Roberta Shockey
1978-4-5
52754
Calaveras
Sierra Nevada. Camp Nine Road northeast of Vallecito.
609
Comment
CAS-BOT-BC16338
Athysanus unilateralis
John Thomas Howell
1931-3-18
5835
Fresno
Jacalitos Canyon.
Comment
CAS-BOT-BC170600
Atriplex
John Thomas Howell; Gordon H. True
1968-5-15
44464
Tulare
Vernal pool nutural area in Valley Grassland, about 4 1/2 miles east-northeast of Pixley, NE corner.
83
Comment
RSA253
Atriplex confertifolia
J. T. Howell
1927-7-9
295
San Bernardino
Between Deadman s Point and Box S Ranch, Mojave Desert.
915
Comment
SDSU5532
Atriplex confertifolia
D. F. Howe
1959-4-14
2695
Inyo
12 1/2 mi. north of Shoshone on #127.
Comment
GH295481
Atriplex cordulata
J. T. Howell
1933-9-17
11687
Unknown
Montezuma Hills
Comment
SEINET4446866
Atriplex coronata
J. T. Howell
1930-1
5503
Unknown
Comment
UCD97409
Atriplex fruticulosa
John Thomas Howell; Catherine Best, Wilma Follette, Gordon True
1981-5-21
54044
Solano
Jepson Prairie Preserve of The Nature Conservancy, in the vicinity of Olcutt Lake, about 12 miles south of Dixon.
6
Comment
RSA43340
Atriplex fruticulosa
J. T. Howell
1948-4-26
24286
Tulare
Near Earlimart.
Comment
GH376396
Atriplex hymenelytra
J. T. Howell
1928-1-28
3289
Unknown
Thousand Palms, Colorado Desert
Comment
CAS-BOT-BC180907
Atriplex pacifica
John Thomas Howell
1927-7-17
2788
Orange
One mile north of Laguna Beach
30
Comment
CAS-BOT-BC168463
Atriplex parishii var. subtilis
John Thomas Howell
1967-11-4
44075
Tulare
SE. corner. About 4.5 miles east-northeast of Pixley
83
Comment
SDSU5569
Atriplex parryi
D. F. Howe
1959-4-14
2692
Inyo
6 1/2 mi. south of Shoshone on road to Tecopa Hot Springs.
Comment
SD50648
Atriplex phyllostegia
Darley F. Howe
1958-7-27
2639
Inyo
6.0 miles north of Lone Pine.
Comment
CAS-BOT-BC176584
Atriplex polycarpa
John Thomas Howell
1967-11-4
44083
Tulare
About 4.5 miles east-northeast of Pixley
83
Comment
SD128651
Atriplex polycarpa
Darley F. Howe
1980-9-21
San Bernardino
13 miles west of Baker on Highway 15
519
Comment
LA204693
Atriplex pusilla
John Thomas Howell;
1938-8-8
14381
Mono
Long Valley
Comment
CAS-BOT-BC176646
Atriplex serenana var. serenana
John Thomas Howell
1957-6-23
32701
Kern
Edison
Comment
POM251773
Atriplex truncata
J. T. Howell
1938-8-8
14391
Mono
Long Valley
Comment
CAS-BOT-BC146025
Avena barbata
John Thomas Howell
1962-6-15
37531
Butte
Sierra Nevada. Magalia.
731
Comment
CAS-BOT-BC145752
Avena sativa
John Thomas Howell
1967-4-30
42106
Tulare
Vernal pool natural area. About 4.5 miles east-northeast of Pixley. Outside fence at northwest corner.
83
Comment
SD112803
Baccharis brachyphylla
Darley F. Howe
1950-10-1
2037
San Diego
Sentenac Canyon
Comment
CAS-BOT-BC99468
Baccharis pilularis
John Thomas Howell
1957-6-11
32589
San Francisco
North slope of Lone Mountain, San Francisco
Comment
CAS-BOT-BC99481
Baccharis pilularis
John Thomas Howell
1956-9-30
31904
San Francisco
east end of 22nd St.
Comment
CAS-BOT-BC99455
Baccharis pilularis
John Thomas Howell
1967-6-29
42742
San Francisco
on site of former home of Mrs. Van Horn Lansdale, Broadway & Webster St., San Francisco
Comment
CAS-BOT-BC106708
Baccharis salicifolia
John Thomas Howell
1958-5-22
33116
Tulare
Kern river Canyon 6 miles south of Roads End P.O. - Sierra Nevada
944
Comment
CAS-BOT-BC295888
Bahiopsis parishii
John Thomas Howell
1927-8-1
2882
Riverside
Near T Cross K Ranch, n. Colorado Desert
609
Comment
CAS-BOT-BC106556
Balsamorhiza deltoidea
John Thomas Howell; R. C. Barneby
1954-5-10
29374
Madera
4 miles south of North Fork - Sierra Nevada
670
Comment
CAS-BOT-BC16747
Barbarea orthoceras
John Thomas Howell; Gordon H. True
1967-7-4
42929
Tulare
Sierra Nevada. Kern Plateau. Troy Meadow.
2377
Comment
CAS-BOT-BC16803
Barbarea verna
John Thomas Howell
1930-3-30
4640
Santa Clara
West side of Pacheco Pass.
304
Comment
GH341484
Beckmannia syzigachne
J. T. Howell
1946-6-13
22019
Unknown
Hicks Valley, Marin Co.
Comment
CAS-BOT-BC75961
Berberis pumila
John Thomas Howell
1943-8-11
19277
Glenn
Canyon of Snow Basin Creek.
Comment
A401427
Betula occidentalis
J. T. Howell
1938-8-7
14356
Unknown
Rock Creek Canyon north of Sherwin Grade
Comment
CAS-BOT-BC497325
Betula occidentalis
John Thomas Howell
1934-6-13
12095
Modoc
Warner Mts., Patterson Mill Road
1676
Comment
CAS-BOT-BC102055
Bidens frondosa
John Thomas Howell
1929-10-4
4427
Placer
1 1/2 miles from Auburn on road to Colfax
Comment
UC42857
Blechnum spicant
Marshall A. Howe
1892-6-24
Marin
Sausalito
Comment
NY162681
Blennosperma nanum var. robustum
J. T. Howell
1947-5-14
23153
Marin
Point Reyes Peninsula above McClure Beach
Comment
CAS-BOT-BC16833
Boechera
John Thomas Howell
1958-7-23
33835
Fresno
Sierra Nevada. Simpson Meadow, Middle Fork of the Kings River.
1828
Comment
CAS-BOT-BC15816
Boechera arcuata
John Thomas Howell; Gordon H. True
1967-5-7
42183
Plumas
Sierra Nevada. Injin Jim Campground at confluence of Granite Creek and North Fork of Feather River.
609
Comment
CAS-BOT-BC16026
Boechera breweri subsp. breweri
John Thomas Howell
1937-7-26
13540
Siskiyou
Caribou Mountain.
2438
Comment
CAS-BOT-BC16148
Boechera covillei
John Thomas Howell; Gordon H. True; Wayne Dakan
1974-7-30
50672
Lassen
Sierra Nevada. Summit ridge of Diamond Mountain.
2346
Comment
CAS-BOT-BC14050
Boechera lincolnensis
John Thomas Howell
1928-4-2
3664
Inyo
Black Mountains. 18 miles southeast of Ryan.
Comment
CAS-BOT-BC14447
Boechera platysperma
John Thomas Howell; Gordon H. True
1967-8-9
43634
Tulare
Sierra Nevada. Kern Plateau. Ca. 2.5 miles north of Blackrock Guard Station on Monache Jeep Trail.
2682
Comment
CAS-BOT-BC14537
Boechera puberula
John Thomas Howell
1950-7-15
26907
Tulare
Sierra Nevada. South Fork of the Kern River. Bakeoven Meadows.
2468
Comment
CAS-BOT-BC25404
Boechera retrofracta
John Thomas Howell
1943-7-17
18464
Nevada
West side of Donner Pass near Norden. Signal Hill.
2133
Comment
CAS-BOT-BC25492
Boechera retrofracta
John Thomas Howell
1946-7-14
22359
Inyo
Rock Creek Lake Basin. Mosquito Flat.
3139
Comment
CAS-BOT-BC25493
Boechera retrofracta
John Thomas Howell
1946-7-16
s.n.
Inyo
Rock Creek Lake Basin. Morgan Pass.
Comment
CAS-BOT-BC25518
Boechera retrofracta
John Thomas Howell
1938-8-10
14462
Madera
Near Devil's Postpile.
Comment
CAS-BOT-BC25544
Boechera retrofracta
John Thomas Howell
1938-8-10
14488
Mono
Minaret Summit.
Comment
CAS-BOT-BC25704
Boechera sparsiflora
John Thomas Howell
1925-5-27
1091
Placer
Lake Tahoe. Emerald Bay Camp.
1889
Comment
CAS-BOT-BC25734
Boechera stricta
John Thomas Howell
1941-8-1
16645
Madera
Near Garnet Lake.
2956
Comment
CAS-BOT-BC25932
Boechera suffrutescens
John Thomas Howell
1960-8-19
36145
Tehama
Lassen Volcanic National Park. Brokeoff Mountain Trail.
2590
Comment
CAS-BOT-BC25933
Boechera suffrutescens
John Thomas Howell
1960-7-22
35901
Plumas
Lassen Volcanic National Park. Devil's Kitchen to Drakesbad.
1828
Comment
CAS-BOT-BC434507
Boerhavia diffusa
John Thomas Howell; R. C. Barneby
1954-5-9
29311
Fresno
At Piedra
170
Comment
RSA88519
Boisduvalia densiflora var. densiflora
J. T. Howell
1951-7-22
28119
Tulare
Mineral King and vicinity; Mineral King Road.
2256
Comment
RSA118032
Boisduvalia stricta
J. T. Howell
1955-7-8
30624
Monterey
Santa Lucia Camp, Arroyo Seco River.
610
Comment
RSA54249
Bouteloua aristidoides
D. F. Howe
1950-10-1
s.n.
San Diego
Sentenac Canyon.
Comment
SDSU5354
Bouteloua gracilis
D. F. Howe
1946-8-1
1482
San Bernardino
North side of Bear Valley
Comment
CAS-BOT-BC29995
Brassica juncea
John Thomas Howell
1956-7-15
31679
San Francisco
San Francisco. Waterfront Street near Mission Rock Terminal.
Comment
CAS-BOT-BC30272
Brassica nigra
John Thomas Howell; Gordon H. True
1974-5-3
50329
Solano
About 5 miles south of Winters near Sweeney Creek.
Comment
CAS-BOT-BC36695
Brassica rapa
John Thomas Howell
1977-8-2
52483
Alpine
Sierra Nevada. Silver Creek, about 1 mile northeast of Lake Alpine on Ebbetts Pass Road. In campground.
2346
Comment
RSA506758
Brassica tournefortii
D. F. Howe
1980-4-14
s.n.
Imperial
19 miles east of Brawley on Highway 78.
Comment
UCR62088
Brassica tournefortii
D. F. Howe
1980-4-14
s.n.
Imperial
Sonoran (Colorado) Desert, 19 mi east of Brawley on Hwy 78
Comment
RSA792
Brickellia californica
J. T. Howell
1927-11-5
801
Orange
Racnho Santa Ana, W side.
Comment
SD77873
Brickellia desertorum
Darley F. Howe
1970-9-17
4706
San Bernardino
South side of Clark Mountain
1890
Comment
CAS-BOT-BC100619
Brickellia oblongifolia var. linifolia
John Thomas Howell
1928-6-14
3913
Inyo
Surprise Canyon, Panamint Mts.
Comment
UC1177328
Brodiaea elegans subsp. elegans
John Thomas Howell
1942-6-21
Marin
San Anselmo Canyon
Comment
CAS-BOT-BC144142
Bromus
John Thomas Howell
1955-4-27
s.n.
San Mateo
0.3 mile north of Dam, Crystal Springs Road, on west side.
Comment
CAS-BOT-BC144206
Bromus arenarius
John Thomas Howell
1957-4-30
32155
San Benito
Near entrance to the Pinnacels.
320
Comment
UCD57691
Bromus arizonicus
John Thomas Howell
1956-3-22
31128
San Luis Obispo
San Luis Obispo Co.: Shandon.
Comment
CAS-BOT-BC149404
Bromus berteroanus
John Thomas Howell
1956-3-24
31135
Monterey
Santa Lucia Mountains. Near top of Jolon Grade.
Comment
CAS-BOT-BC149452
Bromus berteroanus
John Thomas Howell
1965-5-9
41282
Tulare
About 4.5 miles east-northeast of Pixley.
83
Comment
GH361686
Bromus berteroanus
J. T. Howell
1957-4-29
32106
Unknown
Summit of Mustang Grade
822
Comment
RSA118088
Bromus berteroanus
J. T. Howell
1957-4-29
32106
Monterey
Summit of Mustang Grade.
823
Comment
CAS-BOT-BC149122
Bromus carinatus var. carinatus
John Thomas Howell; Gordon H. True
1967-5-29
42381
Tulare
Sierra Nevada. Kern Plateau. Near north end of Lamont Meadow on road to Chimney Meadow.
1859
Comment
CAS-BOT-BC149222
Bromus carinatus var. carinatus
John Thomas Howell
1943-5-22
18120
Marin
Fairfox.
Comment
CAS-BOT-BC149253
Bromus carinatus var. carinatus
John Thomas Howell
1956-3-24
31134
Monterey
Santa Lucia Mountains. Near top of Jolon Grade.
Comment
CAS-BOT-BC149300
Bromus carinatus var. carinatus
John Thomas Howell
1956-3-25
31197
Monterey
Salinas Valley, 6.4 miles from King City on Arroyo Seco road.
Comment
SD112430
Bromus carinatus var. carinatus
Darley F. Howe
1939-6-12
859
San Diego
Palomar. (IPB 2/07)
Comment
UC1177015
Bromus carinatus var. carinatus
John Thomas Howell
1946-5-4
21748
Marin
Dillons Beach
Comment
CAS-BOT-BC148973
Bromus carinatus var. carinatus
John Thomas Howell
1963-5-12
39264
San Francisco
San Francisco. Steiner Street near Vallejo Street.
Comment
CAS-BOT-BC148678
Bromus carinatus var. marginatus
John Thomas Howell
1943-7-14
18326
Nevada
West side of Donner Pass near Norden.
2133
Comment
CAS-BOT-BC149153
Bromus carinatus var. marginatus
John Thomas Howell
1960-3-22
35139
San Luis Obispo
San Luis Obispo.
Comment
UCD59175
Bromus carinatus var. marginatus
John Thomas Howell
1958-5-26
33412
Inyo
Sierra Nevada. Onion Valley road.
2225
Comment
CAS-BOT-BC156207
Bromus catharticus
John Thomas Howell
1956-3-11
30923
Orange
Yorba Linda.
Comment
CAS-BOT-BC156258
Bromus catharticus
John Thomas Howell
1957-6-24
32742
Inyo
Near Roadside drinking fountain, 10 miles south of Olancha.
Comment
CAS-BOT-BC156269
Bromus catharticus
John Thomas Howell
1958-5-12
33027
Alameda
University Avenue at Santa Fe Railroad Station. Berkeley.
Comment
CAS-BOT-BC155877
Bromus ciliatus
John Thomas Howell
1940-8-7
16035
Tulare
East Lake.
2926
Comment
SD44646
Bromus commutatus
D. F. Howe
1951-5-1
Placer
Placer County
456
Comment
CAS-BOT-BC155796
Bromus diandrus
John Thomas Howell
1961-6-21
36670
Plumas
Sierra Nevada. Greenville.
1097
Comment
CAS-BOT-BC155124
Bromus hordeaceus
John Thomas Howell
1957-5-26
32409
San Francisco
San Francisco. North base of Lone Mountain.
Comment
CAS-BOT-BC155234
Bromus hordeaceus
John Thomas Howell
1955-6-12
30330 E
Trinity
Weaverville.
Comment
SEINET10520259
Bromus laevipes
John Thomas Howell
1943-5-11
Howell 18056
Lake
2.9 miles north of Middletown.
Comment
CAS-BOT-BC162321
Bromus madritensis
John Thomas Howell
1963-5-5
39059
Monterey
Mustang Grade, west of Priest Valley.
670
Comment
CAS-BOT-BC162329
Bromus madritensis
John Thomas Howell
1947-4-27
23096
Marin
Bald Mountain west of San Anselmo.
Comment
CAS-BOT-BC162330
Bromus madritensis
John Thomas Howell
1969-5-5
45571
Marin
Tiburon Peninsula. Ring Hill.
Comment
CAS-BOT-BC162331
Bromus madritensis
John Thomas Howell
1944-4-16
19390
Marin
Mount Tamalpais. Corte Madera Ridge.
Comment
CAS-BOT-BC162347
Bromus madritensis
John Thomas Howell
1962-7-8
38325
Kern
Sierra Nevada. Greenhorn Mountains. 1.5 mile southeast of Summit.
1524
Comment
CAS-BOT-BC162335
Bromus madritensis
John Thomas Howell
1990-2-13
s.n.
Marin
Northgate Drive near Sears. (near Nova Albion)
Comment
RSA201353
Bromus marginatus
J. T. Howell
1960-7-18
35564
Plumas
Lassen Volcanic National Park; Drakesbad
1677
Comment
RSA201354
Bromus marginatus
J. T. Howell
1960-7-20
35760
Plumas
Boiling Springs Lake
1799
Comment
POM364031
Bromus orcuttianus
J. T. Howell
1948-7-23
24942
Fresno
Bubbs Creek Canyon in vicinity of Vidette Meadows.
2896
Comment
CAS-BOT-BC162020
Bromus racemosus
John Thomas Howell
1962-6-16
37628
Butte
Sierra Nevada. Concow School north of Yankee Hill.
533
Comment
CAS-BOT-BC161926
Bromus rubens
John Thomas Howell
1958-5-24
33287
Inyo
Sierra Nevada. Whitney Portal Road.
2346
Comment
CAS-BOT-BC161962
Bromus rubens
John Thomas Howell; Gordon H. True
1967-6-11
42561
Butte
Sierra Nevada. On northwest side of Feather River Canyon near Pulga Bridge.
Comment
RSA128334
Bromus stamineus
J. T. Howell
1952-6-2
28319
San Francisco
California St. near Presidio Av., San Francisco.
Comment
CAS-BOT-BC161631
Bromus sterilis
John Thomas Howell; Gordon H. True
1969-6-25
45859
Sierra
Sierra Nevada. North Fork of Yuba River, 5 miles east of Indian Valley.
762
Comment
CAS-BOT-BC161647
Bromus sterilis
John Thomas Howell
1955-5-13
30150
Marin
Shell Beach.
Comment
CAS-BOT-BC161621
Bromus sterilis
John Thomas Howell
1952-5-3
28311
Alameda
Berkeley. Tilden Park. Botanic Garden.
Comment
CAS-BOT-BC161545
Bromus suksdorfii
John Thomas Howell
1951-7-17
27845
Tulare
Mineral King and Vicinity. White Chief Trail.
2834
Comment
CAS-BOT-BC185552
Bromus tectorum
John Thomas Howell
1944-8-17
20677
Tuolumne
Tuolumne Meadows. Parsons Lodge.
Comment
SD112418
Bromus tectorum
Darley F. Howe
1939-6-12
861
San Diego
Palomar
Comment
RSA224262
Bryonia dioica
J. T. Howell
1957-6-21
32691 a
San Francisco
Golden Gate Park, near Stow Lake, San Francisco
Comment
RSA128333
Calamagrostis bolanderi
J. T. Howell
1953-7-16
s.n.
Mendocino
3 miles east of Point Area
Comment
RSA40186
Calamagrostis koelerioides
J. T. Howell
1943-8-10
19269
Glenn
Black Butte
Comment
RSA38334
Calamagrostis purpurascens
J. T. Howell
1948-7-26
25043
Tulare
Center Basin
366
Comment
CAS-BOT-BC438346
Calandrinia ciliata
John Thomas Howell
1933-5-28
11372
Alameda
Summit of Berkeley Hills at head of Strawberry Canyon.
Comment
CAS-BOT-BC438487
Calandrinia ciliata
John Thomas Howell; Walter Knight; Irja Knight; Gordon True
1967-5-7
1840
Plumas
West edge of Butterfly Valley proper.
1066
Comment
CAS-BOT-BC167283
California macrophylla
John Thomas Howell
1940-4-7
15393
Alameda
Corral Hollow
Comment
GH363416
California macrophylla
J. T. Howell
1933-4-22
11084
Unknown
Near San Benito
Comment
CAS-BOT-BC80402
Calocedrus decurrens
John Thomas Howell
1962-9-23
38803
Kern
Near Tiger Flat, Greenhorn Mountains
1981
Comment
CAS-BOT-BC244932
Calochortus leichtlinii
John Thomas Howell
1934-7-13
12101
Modoc
N fork of Barber Creek.
1828
Comment
CAS-BOT-BC490237
Calochortus leichtlinii
John Thomas Howell; Gordon H. True
1970-7-14
5551
Sierra
Verdi Peak Road, 1 mile below Lookout.
2499
Comment
SD81259
Calochortus tolmiei
Darley F. Howe
1970-9-30
Del Norte
Rowdy Creek Road.
518
Comment
CAS-BOT-BC494047
Calochortus venustus
John Thomas Howell
1931-5-12
6471
Contra Costa
Nortonville
Comment
SD112774
Calochortus weedii var. weedii
Darley F. Howe
1937-6-22
522
San Diego
Laguna Mts., near Junction.
Comment
CAS-BOT-BC181490
Caltha leptosepala
John Thomas Howell
1943-7-18
18554
Nevada
Meadow nw. of Castle Peak
Comment
RSA78610
Calycadenia truncata subsp. microcephala
J. T. Howell
1943-5-10
18009
Lake
5 miles west of Lakeport on road to Hopland
Comment
SD51029
Calycoseris parryi
Darley F. Howe
1960-4-28
2915
San Bernardino
Kingston Mountains.
915
Comment
CAS-BOT-BC221319
Calystegia macrostegia subsp. tenuifolia
John Thomas Howell
1930-5-10
4801
Riverside
At top of St. John's Grade
Comment
CAS-BOT-BC221204
Calystegia malacophylla var. berryi
John Thomas Howell
1942-7-24
17120
Tulare
Mineral King
Comment
CAS-BOT-BC436408
Calystegia subacaulis
John Thomas Howell
1946-5-16
s.n.
Marin
W. Angel Island
Comment
CAS-BOT-BC224344
Calystegia subacaulis subsp. subacaulis
John Thomas Howell
1956-5-6
31341
San Francisco
Sierra & 22nd Sts., San Francisco
Comment
RSA40204
Camassia leichtlinii subsp. suksdorfii
J. T. Howell
1944-7-14
19774
Mendocino
Anthony Peak, west side.
Comment
RSA2595
Camissonia bistorta
J. T. Howell
1928-7-9
1059
Riverside
Temescal Canyon, 6 miles south of Glen Ivy
335
Comment
SDSU8584
Camissonia campestris subsp. campestris
D. F. Howe
1951-5-5
2140
Santa Barbara
853
Comment
NY851171
Camissonia claviformis var. claviformis
J. T. Howell
1958-5-28
33533
Inyo
Bishop Creek
1951
Comment
RSA21998
Camissonia micrantha
J. T. Howell
1938-5-1
13773
San Mateo
Colma Canyon.
Comment
SD62090
Camissonia parvula
Darley F. Howe
1965-5-5
Mono
6.7 miles from south entrance to Inyo National Forest on Highway 395.
2133
Comment
SDSU5507
Camissonia refracta
D. F. Howe
1959-4-13
2687
San Bernardino
15 miles south of Shoshone
Comment
CAS-BOT-BC160837
Camissonia tanacetifolia subsp. quadriperforata
John Thomas Howell
1962-6-18
37769
Plumas
Sierra Valley near Beckwourth
1487
Comment
CAS-BOT-BC191092
Camissonia tanacetifolia subsp. tanacetifolia
John Thomas Howell
1934-6-12
12000
Modoc
6 mi. S of Davis Creek.
Comment
CAS-BOT-BC160366
Camissoniopsis cheiranthifolia subsp. cheiranthifolia
John Thomas Howell
1930-6-8
5273
Sonoma
At north end of Bodega Bay
Comment
CAS-BOT-BC160507
Camissoniopsis cheiranthifolia subsp. suffruticosa
John Thomas Howell
1931-5-27
6555
Ventura
10 miles nw. of Ventura on road to Santa Barbara
Comment
UC890554
Campanula rotundifolia
John Thomas Howell
1939-8-4
15046
Siskiyou
Marble Rim, Marble Mts.
1889
Comment
CAS-BOT-BC37238
Cardamine breweri
John Thomas Howell
1941-8-8
16831
Madera
Garnet Creek to San Joaquin Mountain.
Comment
CAS-BOT-BC37556
Cardamine californica
John Thomas Howell
1931-3-22
5968
Monterey
Stone Canyon 13 miles east of Salinas Valley.
Comment
CAS-BOT-BC37869
Cardamine oligosperma
John Thomas Howell
1933-5-28
11354
Alameda
Berkeley Hills. Strawberry Canyon.
Comment
CDA6873
Carduus pycnocephalus
J. T. Howell
1940-5-21
1
San Francisco
On the Marina, San Francisco.
0
Comment
CAS-BOT-BC21219
Carex
John Thomas Howell
1943-8-4
19029
Glenn
Summit ridge north of Black Butte.
Comment
CAS-BOT-BC18355
Carex
John Thomas Howell; T. C. Fuller; G. D. Barbe
1981-6-25
54340
Plumas
Sierra Nevada. 2.8 miles north-northeast of Englemine on Diamond Mountain Road.
1341
Comment
CAS-BOT-BC20314
Carex abrupta
John Thomas Howell
1949-7-19
25521
Tulare
Rock Creek.
3200
Comment
CAS-BOT-BC20324
Carex abrupta
John Thomas Howell
1942-7-26
17244
Tulare
Mineral King.
Comment
CAS-BOT-BC20348
Carex abrupta
John Thomas Howell
1944-8-5
19961
Tuolumne
Tuolumne Meadows. Near Parsons Lodge.
Comment
RSA35088
Carex abrupta
J. T. Howell
1944-8-16
20588
Tuolumne
Mono Pass Trail.
Comment
CAS-BOT-BC17936
Carex angustata
John Thomas Howell
1960-7-22
35873
Plumas
Lassen Volcanic National Park. Drakesbad.
1828
Comment
CAS-BOT-BC19038
Carex athrostachya
John Thomas Howell; Gordon H. True
1970-7-30
47205
Tulare
Kern Plateau. Along Salmon Creek at north end of Big Meadow.
2377
Comment
CAS-BOT-BC19715
Carex athrostachya
John Thomas Howell
1943-7-17
18447
Nevada
West side of Donner Pass near Norden.
2133
Comment
CAS-BOT-BC19725
Carex athrostachya
John Thomas Howell
1951-6-27
27591
Plumas
Sierra Nevada. McRae Meadow.
1981
Comment
CAS-BOT-BC19533
Carex bolanderi
John Thomas Howell
1947-7-21
23448
San Bernardino
San Bernardino Mountains. Lost Creek.
1920
Comment
RSA98027
Carex bolanderi
J. T. Howell
1951-7-22
28128
Tulare
Mineral King and vicinity; Mineral King Road.
2256
Comment
POM304482
Carex brainerdii
J. T. Howell
1940-5-31
15550
Mariposa
Yosemite Valley.
Comment
SD130960
Carex brainerdii
John Thomas Howell, Gordon H. True
1967-5-7
42186
Plumas
Sierra Nevada; Injin Jim Campground at confluence of Granite Creek and North Fork of Feather River.
609
Comment
SEINET8145962
Carex brainerdii
J. T. Howell
1944-1
19783
Unknown
Comment
CAS-BOT-BC34051
Carex brevicaulis
John Thomas Howell
1952-3-4
28298
Monterey
Just south of Little Sur.
Comment
RSA0079892
Carex brevicaulis
John Thomas Howell
1946-5-4
21727
Marin
Near Dillons Beach.
Comment
RSA0079894
Carex brevicaulis
John Thomas Howell
1953-5-7
28945
Monterey
Huckleberry Hill, Monterey.
Comment
CAS-BOT-BC34085
Carex breweri
John Thomas Howell
1960-8-19
36134
Tehama
Lassen Volcanic National Park. Brokeoff Mountain Trail.
2438
Comment
CAS-BOT-BC34128
Carex breweri
John Thomas Howell
1944-8-16
20630
Mono
Mono Pass.
Comment
CAS-BOT-BC34168
Carex breweri
John Thomas Howell
1948-7-24
24974
Fresno
Bullfrog Lake.
3240
Comment
CAS-BOT-BC34181
Carex breweri
John Thomas Howell
1949-7-22
25596
Tulare
Mt. Guyot.
3505
Comment
CAS-BOT-BC34295
Carex congdonii
John Thomas Howell
1946-7-24
22692
Fresno
Mono Mesa above Gold Lake.
Comment
GH424074
Carex congdonii
J. T. Howell
1941-8-2
16681
Unknown
Near Garnet Lake
2956
Comment
CAS-BOT-BC34467
Carex deflexa var. boottii
John Thomas Howell
1946-7-20
22558
Fresno
Mono Rock.
3352
Comment
CAS-BOT-BC34957
Carex densa
John Thomas Howell
1954-5-17
29720
El Dorado
Sierra Nevada. 1 mile southwest of Garden Valley.
609
Comment
CAS-BOT-BC19821
Carex douglasii
John Thomas Howell; Gordon H. True
1967-7-3
42855
Tulare
Sierra Nevada. Kern Plateau. Rockhouse Meadow.
1706
Comment
CAS-BOT-BC20071
Carex echinata
John Thomas Howell
1958-8-2
34173
Fresno
Sierra Nevada. Copper Creek Canyon. Tent Meadow (lower).
2316
Comment
RSA201270
Carex echinata subsp. echinata
J. T. Howell
1961-6-20
36579
Tehama
Bluff Falls.
1982
Comment
RSA201294
Carex echinata subsp. echinata
J. T. Howell
1961-6-20
36579
Tehama
Bluff Falls.
1982
Comment
RSA78560
Carex echinata subsp. phyllomanica
J. T. Howell
1943-7-4
18255
Marin
Ledum Swamp on road to Point Reyes, Point Reyes Peninsula.
Comment
CAS-BOT-BC19979
Carex feta
John Thomas Howell
1974-7-10
50557
Lassen
Sierra Nevada. Elysian Valley.
1325
Comment
UC1147821
Carex feta
John Thomas Howell, J. W. Stacey
1937-6-6
13038
Sonoma
Pitkin Marsh
Comment
CAS-BOT-BC20281
Carex filifolia var. erostrata
John Thomas Howell; Gordon H. True
1970-7-28
47010
Tulare
Sierra Nevada. Kern Plateau. West side of Big Meadow just south of Pipe Spring.
2377
Comment
CAS-BOT-BC21205
Carex fissuricola
John Thomas Howell
1969-8-26
45936
Tulare
The Sierra Nevada. Monarch Creek Trail near Mineral King.
2895
Comment
CAS-BOT-BC20679
Carex fracta
John Thomas Howell
1943-7-21
18647
Placer
Donner Pass to Mt. Lincoln.
Comment
CAS-BOT-BC20721
Carex fracta
John Thomas Howell
1947-7-22
23503
San Bernardino
San Bernardino Mountains. South Fork, Santa Ana River.
2377
Comment
CAS-BOT-BC20815
Carex fracta
John Thomas Howell
1950-7-19
27093
Tulare
North end of Hessian Meadows.
2590
Comment
CAS-BOT-BC20681
Carex fracta
John Thomas Howell
1938-8-2
14012
Placer
Near Calneva.
Comment
CAS-BOT-BC20839
Carex garberi
John Thomas Howell; J. W. Stacey
1936-6-7
12642
Marin
Ledum Swamps on road to Point Reyes.
Comment
SD72053
Carex globosa
John Thomas Howell
1955-6-2
30258 A
Sonoma
Near Vine Hill School.
Comment
UC1026409
Carex globosa
John Thomas Howell
1953-3-15
28923
Contra Costa
Rock City Mt. Diablo
Comment
UCR74656
Carex globosa
J. T. Howell
1944-4-2
19368 A
Marin
SE of Laurel Dell, Mt. Tamalpais
Comment
SEINET7559871
Carex globosa
John Thomas Howell
1946-5-14
21843
Marin
Portrero Meadow, Mt. Tamalpais.
Comment
CAS-BOT-BC28375
Carex gracilior
John Thomas Howell
1947-6-5
23238
Sonoma
Cunningham Marsh.
Comment
CAS-BOT-BC28387
Carex gracilior
John Thomas Howell
1945-5-9
20849
Marin
Ignacis
Comment
CAS-BOT-BC146562
Carex gynodynama
John Thomas Howell
1945-6-24
21240
Marin
Willow Meadow, Mt. Tamalpais
Comment
CAS-BOT-BC21757
Carex hassei
John Thomas Howell
1928-6-19
4031
Inyo
Sourdough Canyon near Panamint City, Panamint Mountains.
2286
Comment
CAS-BOT-BC21789
Carex hassei
John Thomas Howell
1947-7-22
23505
San Bernardino
South Fork, Santa Ana River.
2377
Comment
CAS-BOT-BC22285
Carex hassei
John Thomas Howell
1960-7-18
35508
Plumas
Drakesbad.
1828
Comment
CAS-BOT-BC20997
Carex helleri
John Thomas Howell
1949-7-22
25631
Tulare
Mt. Guyot.
3657
Comment
CAS-BOT-BC22008
Carex heteroneura
John Thomas Howell
1951-7-17
27824
Tulare
Mineral King and Vicinity. White Chief Trail.
2743
Comment
CAS-BOT-BC22095
Carex heteroneura
John Thomas Howell
1946-9-1
22966
El Dorado
Echo Summit.
Comment
CAS-BOT-BC28082
Carex hoodii
John Thomas Howell
1937-7-25
13484
Siskiyou
Caribou Basin, Salmon-Trinity Alps.
2286
Comment
CAS-BOT-BC28083
Carex hoodii
John Thomas Howell
1937-7-21
13196
Siskiyou
South Fork of Salmon River near Big Flat.
1524
Comment
CAS-BOT-BC28153
Carex hoodii
John Thomas Howell
1947-7-22
23507
San Bernardino
South Fork, Santa Ana River, San Bernardino Mts.
Comment
CAS-BOT-BC28066
Carex illota
John Thomas Howell
1946-7-14
22326
Inyo
Mosquito Flat, Rock Creek Lake Basin.
3139
Comment
CAS-BOT-BC7841
Carex incurviformis
John Thomas Howell
1946-7-24
22700
Inyo
Mono Mesa.
3657
Comment
UC824334
Carex incurviformis var. danaensis
John Thomas Howell
1938-8-11
14546
Tuolumne
Mt. Dana
3810
Comment
CAS-BOT-BC7561
Carex integra
John Thomas Howell
1943-8-10
19260 A
Glenn
Black Butte.
Comment
CAS-BOT-BC7562
Carex integra
John Thomas Howell
1943-8-4
19013
Glenn
Plaskett Meadows.
1828
Comment
RSA97925
Carex integra
J. T. Howell
1951-6-27
27591 A
Plumas
McRae Meadow.
1982
Comment
CAS-BOT-BC35455
Carex jonesii
John Thomas Howell; Gordon H. True
1966-7-11
41650
Tulare
Kern Plateau, Poison Meadow
2286
Comment
CAS-BOT-BC35781
Carex jonesii
J. T. Howell
1934-6-14
12164 A
Lassen
Warner Mts.; near Lost Lake
2438
Comment
RSA43486A
Carex jonesii
J. T. Howell
1943-8-3
18932
Glenn
Plaskett Meadows.
1829
Comment
UCD140409
Carex jonesii
John Thomas Howell
1960-7-22
35877
Plumas
Lassen Volcanic National Park. Drakesbad.
1676
Comment
CDA33099
Carex leavenworthii
J. T. Howell
1969-4-22
45552
Amador
Sutter Creek.
0
Comment
CAS-BOT-BC31174
Carex lemmonii
John Thomas Howell; J. W. Stacey
1936-7-26
12681
Sonoma
Pitkin Marsh. 5 mi N of Sebastopol.
Comment
CAS-BOT-BC31102
Carex luzulina
John Thomas Howell
1936-8-27
12841
Trinity
Near Trinity Center.
Comment
SEINET12882800
Carex luzulina var. ablata
J. T. Howell
1937-1
13332
Unknown
Comment
CAS-BOT-BC31591
Carex luzulina var. luzulina
John Thomas Howell; J. W. Stacey
1936-6-7
12641
Marin
Ledum Swamp on road to Point Reyes.
Comment
CAS-BOT-BC31654
Carex lyngbyei
John Thomas Howell
1949-5-22
25323
Marin
Salt marsh, 1 mi S of Inverness.
Comment
CAS-BOT-BC31848
Carex microptera
John Thomas Howell
1951-7-17
27850
Tulare
White Chief Trail
2895
Comment
SD130936
Carex microptera
John Thomas Howell
1950-7-14
26853
Tulare
Sierra Nevada; Bakeoven Meadows; South Fork of Kern River.
2469
Comment
SEINET7567652
Carex microptera
John Thomas Howell
1936-8-27
12851
Trinity
Near Trinity Center.
Comment
UC905008
Carex multicaulis
John Thomas Howell
1947-7-22
23483
San Bernardino
South Fork Santa Ana River San Bernardino Mts.
1981
Comment
CAS-BOT-BC119979
Carex multicostata
John Thomas Howell
1944-8-12
20344
Tuolumne
Between Tioga Pass and Gaylor Lakes.
Comment
SEINET10713220
Carex multicostata
John Thomas Howell
1943-8-3
Howell 18972
Glenn
1829
Comment
POM248608
Carex nervina
J. T. Howell
1938-8-10
14468
Madera
Near Devil s Postpile.
Comment
UC904978
Carex obnupta
John Thomas Howell
1946-7-4
22179
Marin
Dillons Beach
Comment
CAS-BOT-BC118876
Carex pellita
John Thomas Howell; Gordon H. True
1966-7-11
41756
Tulare
Horse Meadow, Kern Plateau.
2255
Comment
CAS-BOT-BC118390
Carex praegracilis
John Thomas Howell
1962-6-9
38353
Kern
Alkaline flats, Isabella
762
Comment
CAS-BOT-BC118391
Carex praegracilis
John Thomas Howell; Gordon H. True
1971-6-16
47995
Kern
Weldon Meadow.
1981
Comment
CAS-BOT-BC118399
Carex praegracilis
John Thomas Howell; Gordon H. True; Margaret Williams
1973-5-12
49193
Lassen
Elysian Valley, northwest of Janesville.
1325
Comment
CAS-BOT-BC118431
Carex praegracilis
John Thomas Howell
1945-5-20
20871
Marin
Tiburon
Comment
SD37179
Carex praegracilis
Darley F. Howe
1939-5-23
San Diego
Cuyamaca Lake
Comment
CAS-BOT-BC118430
Carex praegracilis
John Thomas Howell
1944-4-23
19404
Marin
Edge of salt marsh, hills SE of Kentfield.
Comment
RSA220006
Carex praegracilis
J. T. Howell
1969-5-5
45566
Marin
Railroad yards, Tiburon.
Comment
RSA91047
Carex preslii
J. T. Howell
1937-7-24
13431
Siskiyou
Caribou Basin, Salmon-Trinity Alps.
1982
Comment
SEINET10380475
Carex rossii
John Thomas Howell
1963-7-9
39655
El Dorado
Foot of Echo Summit grade, one mile southwest of Meyers
2012
Comment
CAS-BOT-BC118150
Carex rossii
John Thomas Howell
1960-8-22
36408
Shasta
Pond north of Summit Lake
2042
Comment
CAS-BOT-BC118151
Carex rossii
John Thomas Howell
1961-6-19
36520
Shasta
Dry slope, Manzanita Lake
1783
Comment
CAS-BOT-BC118187
Carex rossii
John Thomas Howell; Gordon H. True
1971-7-13
48341
Tulare
NE end of Big Meadow
2438
Comment
SEINET8128133
Carex rossii
J. T. Howell
1943-1
18303
Unknown
Comment
CAS-BOT-BC117379
Carex sartwelliana
John Thomas Howell
1962-7-10
38506
Kern
Shirley Meadows. Greenhorn Mountains.
2011
Comment
CAS-BOT-BC118250
Carex scopulorum var. bracteosa
John Thomas Howell
1938-8-13
14578
Mariposa
Snow Flat.
Comment
CAS-BOT-BC117409
Carex senta
John Thomas Howell
1962-9-25
38896
Kern
Along low water line of Kern River 3 mi N of Kernville.
822
Comment
CAS-BOT-BC117248
Carex spectabilis
John Thomas Howell
1937-7-24
13432
Siskiyou
Caribou Basin, Salmon-Trinity Alps.
2286
Comment
CAS-BOT-BC117304
Carex spectabilis
John Thomas Howell
1942-8-8
17838
Tulare
North side Farewell Gap.
Comment
UC710433
Carex spectabilis
John Thomas Howell
1944-8-10
20218
Mono
n side Mt. Dana
Comment
SEINET7575712
Carex spectabilis
John Thomas Howell
1939-8-8
15189
Siskiyou
Black Mt, Marble Mts.
Comment
CAS-BOT-BC117370
Carex stipata var. stipata
John Thomas Howell
1976-7-15
51845
Plumas
Snake Lake, ca 4 mi NW of Quincy
1219
Comment
SDSU11683
Carex straminiformis
D. F. Howe
1962-8-6
3402
Siskiyou
Mt. Shasta, Shasta National Forest.
2438
Comment
UC836013
Carex straminiformis
John Thomas Howell
1939-8-2
14908
Siskiyou
Spirit Lake Marble Mts.
1828
Comment
CAS-BOT-BC116815
Carex subbracteata var. subbracteata
John Thomas Howell
1938-5-1
13776
San Mateo
San Bruno Hills
Comment
CAS-BOT-BC116903
Carex subbracteata var. subbracteata
John Thomas Howell; J. W. Stacey
1936-6-7
12652
Marin
Pine woods on road to Point Reyes.
Comment
CAS-BOT-BC115769
Carex subfusca
John Thomas Howell
1942-7-27
17295
Tulare
Deer Creek between Timber Gap and Cliff Creek.
Comment
CAS-BOT-BC115836
Carex subfusca
John Thomas Howell
1937-7-23
13338
Siskiyou
South Fork of Salmon River near Big Flat.
1524
Comment
CAS-BOT-BC116551
Carex subfusca
John Thomas Howell
1943-7-27
18873
Placer
Lake Tahoe near Tahoe Pines
Comment
CAS-BOT-BC116724
Carex subfusca
John Thomas Howell; R. C. Barneby
1954-5-10
29347
Fresno
3 mi above Tollhouse.
1082
Comment
RSA118057
Carex subfusca
J. T. Howell
1955-7-8
30629
Monterey
Santa Lucia Camp, Arroyo Seco River.
610
Comment
SD112263
Carex subfusca
Darley F. Howe
1939-6-12
1310
San Diego
Palomar Mt. (IPB 12/06)
Comment
CAS-BOT-BC115765
Carex subfusca
John Thomas Howell
1950-7-22
27187
Tulare
Olacha Peak
3291
Comment
SEINET8147521
Carex subnigricans
J. T. Howell
1942-1
17767
Unknown
Comment
CAS-BOT-BC115707
Carex tahoensis
John Thomas Howell; Barbara T. Menzies; Roberta Shockey
1978-6-28
53158
Alpine
Subalpine western slope of Ebbetts Peak.
2773
Comment
CAS-BOT-BC115506
Carex tumulicola
John Thomas Howell
1938-5-1
13777
San Mateo
San Bruno Hills.
Comment
CAS-BOT-BC115583
Carex tumulicola
John Thomas Howell
1945-6-3
s.n.
Marin
Shell Beach
Comment
CAS-BOT-BC115367
Carex utriculata
John Thomas Howell
1941-8-6
16794
Madera
Shadow Creek below Lake Ediza
Comment
CAS-BOT-BC115479
Carex utriculata
John Thomas Howell; Gordon H. True
1970-7-28
47005
Tulare
West side of Big Meadow just S of Pipe Spring.
2377
Comment
RSA52098
Carex utriculata
J. T. Howell
1947-6-4
23212
Marin
Near radio station, Point Reyes Peninsula
Comment
SD61088
Carex vesicaria
Darley F. Howe
1964-7-22
Fresno
On road to McKinley Grove, 4 miles from Shaver Lake in pool of water.
1707
Comment
CAS-BOT-BC114916
Carex whitneyi
John Thomas Howell
1943-7-14
18320
Nevada
West side of Donner Pass near Norden.
2133
Comment
RSA39814
Cassiope mertensiana subsp. californica
J. T. Howell
1943-7-24
18793
Nevada
Frog Lake
Comment
RSA35287
Castilleja affinis
J. T. Howell
1944-6-11
19626
Santa Cruz
About 1 mile east of Felton.
Comment
POM302994
Castilleja affinis
J. T. Howell
1933-5-23
11325
San Francisco
West of Sutro Forest.
Comment
JEPS58949
Castilleja affinis subsp. affinis
John Thomas Howell
1946-5-16
21864
Marin
Angel Island, se side Marin County Angel Island
Comment
SD132705
Castilleja affinis subsp. affinis
Darley F. Howe
1936-4-26
312
San Diego
Telegraph Canyon. Chula Vista
Comment
CAS-BOT-BC249561
Castilleja applegatei subsp. pallida
John Thomas Howell
1944-8-6
20027
Tuolumne
Slope north of Tuolumne Meadows
Comment
CAS-BOT-BC249565
Castilleja applegatei subsp. pallida
John Thomas Howell
1938-8-11
14516
Tuolumne
Mt. Dana
3200
Comment
CAS-BOT-BC225994
Castilleja applegatei subsp. pinetorum
John Thomas Howell
1934-7-1
12329
Modoc
Duncan Horse Camp.
1355
Comment
CAS-BOT-BC241202
Castilleja applegatei subsp. pinetorum
John Thomas Howell; Gordon H. True
1970-6-24
46700
Tulare
North Manter Creek, Big Meadow to Manter Meadow. Kern Plateau
2438
Comment
CAS-BOT-BC249742
Castilleja applegatei subsp. pinetorum
John Thomas Howell
1962-6-19
37852
Plumas
The Buttes, n. Sierra Valley
1493
Comment
GH365445
Castilleja applegatei subsp. pinetorum
J. T. Howell
1942-8-3
17624
Unknown
Kaweah Gap
Comment
RSA201327
Castilleja arachnoidea
J. T. Howell
1960-8-19
36169
Shasta
Summit ridge, Brokeoff Mtn.
2744
Comment
POM259363
Castilleja arachnoidea subsp. schizotricha
J. T. Howell
1939-8-8
15182
Siskiyou
Marble Mountains: Black Mountain.
Comment
SD102790
Castilleja chromosa
Darley F. Howe
1978-6-1
San Bernardino
Ivanpah Mountains
1463
Comment
SD81153
Castilleja chromosa
Darley F. Howe
1971-6-24
Inyo
Near stream 6 miles west of entrance to Inyo National Forest, west of Bishop
2042
Comment
SD42618
Castilleja lasiorhyncha
Darley F. Howe
1947-6-27
San Bernardino
Bluff Lake.
Comment
SD114381
Castilleja latifolia
Darley F. Howe
1939-7-28
898
San Francisco
San Francisco Peninsula
Comment
SD114369
Castilleja mollis
Darley F. Howe
1963-5-18
3718
San Luis Obispo
Sand dunes, Lake Oso Flaco
Comment
CAS-BOT-BC32558
Castilleja muscipula var. armeniaca
John Thomas Howell
1939-8-4
15061
Siskiyou
Near Spirit Lake, Marble Mts.
1828
Comment
SDSU10521
Castilleja wightii
D. F. Howe
1961-7-27
3070
Marin
On #1, 0.6 mile south of Stinson Beach.
30
Comment
CAS-BOT-BC39616
Caulanthus
John Thomas Howell
1949-7-17
25397
Inyo
Wonoga Peak.
2743
Comment
CAS-BOT-BC38314
Caulanthus cooperi
John Thomas Howell
1958-5-25
33373
Inyo
Sierra Nevada. Carroll Creek.
1676
Comment
CAS-BOT-BC38437
Caulanthus coulteri
John Thomas Howell; Gordon H. True
1971-6-17
48086
Kern
Sierra Nevada. About 1 mile southeast of Bald Eagle Peak.
1828
Comment
SD44619
Caulanthus coulteri
Darley F. Howe
1951-5-5
2142
Santa Barbara
1280
Comment
SD81273
Caulanthus crassicaulis
Darley F. Howe
1969-5-17
San Bernardino
Clark Mountain
1584
Comment
CAS-BOT-BC41026
Caulanthus flavescens
John Thomas Howell
1933-3-26
10881
Alameda
Tesla.
Comment
CAS-BOT-BC40222
Caulanthus lasiophyllus
John Thomas Howell
1946-5-12
21790
Marin
Carson Country.
Comment
CAS-BOT-BC40223
Caulanthus lasiophyllus
John Thomas Howell
1940-5-12
15429
Marin
Between Little Carson and Carson Ridge.
Comment
CAS-BOT-BC48901
Ceanothus cuneatus
John Thomas Howell
1963-6-21
39480
Monterey
Mustang Grade east of San Lorenzo Creek
Comment
CAS-BOT-BC49156
Ceanothus cuneatus
John Thomas Howell; T. C. Fuller; G. D. Barbe
1980-5-20
53507
Trinity
One-eye Flat, about 1.7 miles north of Carrville - Trinity River Canyon
755
Comment
CAS-BOT-BC49276
Ceanothus cuneatus
John Thomas Howell; Gordon H. True
1971-7-12
48338
Kern
Sierra Nevada - east side of Greenhorn Range 3 miles west of Wofford
1280
Comment
CAS-BOT-BC49296
Ceanothus cuneatus
John Thomas Howell
1931-4-3
6153
Lake
Butts Canyon Road to Middletown, 6.5 miles from Aetna Springs
Comment
SDSU10340
Ceanothus cuneatus
D. F. Howe
1960-4-9
2841
San Luis Obispo
Area east of Morro Bay.
61
Comment Read comments Jul 21 2012
A349240
Ceanothus divergens
J. T. Howell
1941-4-5
16162
Unknown
Franz Valley
Comment
A349244
Ceanothus divergens
J. T. Howell
1941-3-9
16154
Unknown
SW. of St. Helena
Comment
UC1177453
Ceanothus foliosus
John Thomas Howell
1946-5-25
21942
Marin
hills w of Corte Madera
Comment
CAS-BOT-BC51418
Ceanothus masonii
John Thomas Howell
1944-4-2
19364
Marin
Bolinas Ridge
Comment
RSA35306
Ceanothus masonii
J. T. Howell
1944-4-2
s.n.
Marin
Bolinas Ridge
Comment
SD41522
Ceanothus megacarpus
Darley F. Howe
1947-3-22
1515
Los Angeles
Topanga Canyon
Comment
SDSU10426
Ceanothus spinosus
D. F. Howe
1947-4-4
1545
Orange
Santa Ana Mtns.
Comment
CAS-BOT-BC272147
Centaurea cineraria
John Thomas Howell
1943-5-23
18159
Alameda
Hills above Mills College
Comment
JEPS88689
Centromadia fitchii
John Thomas Howell
30904
Contra Costa
near Turtle Rock; Mt. Diablo
259
Comment
CAS-BOT-BC288513
Centromadia fitchii
John Thomas Howell
1930-10-11
5548
Alameda
1 mile N of Livermore
Comment
CAS-BOT-BC288814
Centromadia fitchii
John Thomas Howell
1930-9-14
5485
Sonoma
6 miles N of Geyserville
Comment
CAS-BOT-BC279293
Centromadia pungens subsp. pungens
John Thomas Howell
1930-9-28
5513
San Joaquin
Holt
Comment
CAS-BOT-BC222896
Cephalanthus occidentalis
John Thomas Howell
1961-9-22
36764
Butte
North Fork of Feather River, 10 miles from Oroville
Comment
CAS-BOT-BC384933
Cerastium arvense
John Thomas Howell
1961-9-22
36792
Plumas
At Lewisia Rock, North Fork of Feather River
640
Comment
CAS-BOT-BC388296
Cerastium glomeratum
John Thomas Howell
1976-4-27
51601
Lake
Lakeport
411
Comment
CAS-BOT-BC388356
Cerastium glomeratum
John Thomas Howell; Gordon True; Walter Knight; Irja Knight
1967-6-12
1994
Plumas
Butterfly Botanical Area and Vicinity. Valley proper, near barn
1036
Comment
CAS-BOT-BC207628
Cercis occidentalis
John Thomas Howell
1934-7-4
12408
Siskiyou
SE corner of Siskiyou Co.
Comment
CAS-BOT-BC135574
Cercocarpus betuloides var. betuloides
John Thomas Howell; R. C. Barneby
1960-6-7
35433
Fresno
Kings Canyon Road 6.5 miles northeast of Cherry Gap - Sierra Nevada
1554
Comment
CAS-BOT-BC147698
Cercocarpus betuloides var. betuloides
John Thomas Howell
1977-3-9
52316
San Diego
North of Escondido on highway to Temecula
Comment
CAS-BOT-BC136957
Cercocarpus ledifolius var. intricatus
John Thomas Howell
1928-6-14
3926
Inyo
S. side of Surprise [Canon] Canyon near Panamint City, Panamint Mts.
2438
Comment
CAS-BOT-BC143877
Cercocarpus ledifolius var. ledifolius
John Thomas Howell; Gordon H. True
1967-8-9
43626
Tulare
Six miles from Kennedy Meadows on road to Troy Meadow
2286
Comment
CAS-BOT-BC279507
Chaenactis artemisiifolia
John Thomas Howell
1928-4-22
3752
Ventura
Point Mugu
Comment
CAS-BOT-BC276620
Chaenactis douglasii var. douglasii
John Thomas Howell; Gordon H. True; Wayne Dakan
1974-7-30
50674
Lassen
Summit ridge of Diamond Mountain
2346
Comment
UC894449
Chaenactis douglasii var. douglasii
J. Thomas Howell
1938-8-7
14321
Mono
Crooked Creek [this is the Crooked Creek that is now under Lake Crowley]
2057
Comment Read comments Jul 2 2012
CAS-BOT-BC284566
Chaenactis glabriuscula var. heterocarpha
John Thomas Howell
1941-6-22
16321
Napa
Hills sw. of St. Helena
Comment
CAS-BOT-BC284307
Chaenactis stevioides
John Thomas Howell
1958-5-26
33450
Inyo
Onion Valley Road, Sierra Nevada
1950
Comment
SD128740
Chaenactis stevioides
Darley F. Howe
1980-4-15
Riverside
1.0 mile west of Mesa Verde, south slope of McCoy Mountains, Highway 10. (IPB 10/07)
Comment
CAS-BOT-BC279667
Chaenactis xantiana
John Thomas Howell
1950-7-26
27351
Tulare
Summit Meadow
Comment
CAS-BOT-BC279742
Chaenactis xantiana
John Thomas Howell; Gordon H. True
1966-7-11
41604
Tulare
Canyon of Poison Meadow Creek on Cherry Hill Road, Kern Plateau
1920
Comment
SDSU7125
Chaenactis xantiana
D. F. Howe
1971-6-26
4745
Mono
12.4 miles north of Mono-Inyo Co. line on #6.
1463
Comment
SD75834
Chamaesaracha nana
Darley F. Howe
1969-8-12
Mono
Hillside, east of Sonora Pass
2743
Comment
GH347546
Chamaesyce vallis-mortae
J. T. Howell
1958-5-23
33198
Unknown
10 miles east of Onyx
1036
Comment
CAS-BOT-BC166035
Chamerion angustifolium subsp. circumvagum
John Thomas Howell
1946-7-26
22783
Fresno
Fourth Recess
Comment
CAS-BOT-BC66371
Cheilanthes covillei
John Thomas Howell; Gordon H. True
1967-5-29
42292
Inyo
1/3 mile east of head of Nine Mile Canyon
1828
Comment
CAS-BOT-BC68092
Cheilanthes parryi
John Thomas Howell
1927-8-1
2886
Riverside
N. Colorado Desert - steep sides of Morongo Canyon
609
Comment
CAS-BOT-BC426342
Chenopodium
John Thomas Howell
1975-7-23
51389
Lassen
Susanville, south edge of town on highway to Janesville
1295
Comment
POM203452
Chenopodium ambrosioides var. ambrosioides
J. T. Howell
1933-11-19
11725
Solano
1 miles from Cordelia on road to Suisun.
Comment
CAS-BOT-BC460948
Chenopodium atrovirens
John Thomas Howell
1946-7-15
22377
Inyo
Rock Crerek Lake Basin: Mosquito Flat
3139
Comment
RSA88585
Chenopodium pumilio
J. T. Howell
1951-8-19
28183
Plumas
Greenville.
1098
Comment
OBI22343
Chloris virgata
John Thomas Howell
1954-11-2
30116 A
San Luis Obispo
Along Hwy at Shandon
Comment
SDSU4924
Chorizanthe cuspidata
D. F. Howe
1966-6-1
4250
Marin
Pt. Reyes Peninsula.
Comment
GH369843
Chorizanthe cuspidata var. villosa
J. T. Howell
1946-5-4
21747
Unknown
Dillons Beach
Comment
SD114252
Chorizanthe fimbriata var. fimbriata
Darley F. Howe
1935-5-5
210
San Diego
Mesa near Otay.
Comment
CAS-BOT-BC256909
Chorizanthe membranacea
John Thomas Howell
1925-5-17
1070
Merced
Hopeton Bridge on the Merced River
Comment
CAS-BOT-BC231980
Chorizanthe rigida
John Thomas Howell
1928-3-24
3496
San Diego
Near Palm Wash, w. Colorado Desert
Comment
CAS-BOT-BC244661
Chorizanthe staticoides
John Thomas Howell
1931-5-31
6621 A
Los Angeles
San Gabriel Wash
Comment
CAS-BOT-BC32830
Chorizanthe staticoides var. staticoides
J. T. Howell
1928-6-10
3876
Los Angeles
San Gabriel Mts., Monrovia Canyon, near Deer Park
Comment
RSA137133
Chorizanthe xanti
J. T. Howell
1957-6-25
s.n.
Kern
Tehachapi Mts., 2.5 miles SE of Keene
915
Comment
CAS-BOT-BC15033
Chrysothamnus humilis
John Thomas Howell
1934-7-1
12348 B
Modoc
Duncan Horse Camp.
1355
Comment
RSA44441
Chrysothamnus nauseosus subsp. albicaulis
J. T. Howell
1947-8-13
24042
Inyo
Black Lake Trail, Big Pine Lakes
3049
Comment
SBBG92161
Chrysothamnus viscidiflorus
D. F. Howe
1980-9-26
Inyo
St Hwy 168, in a small cyn
1740
Comment
JEPS75261
Chrysothamnus viscidiflorus subsp. viscidiflorus
John Thomas Howell and Gordon H. True
1967-8-9
43663 A
Tulare
about 4 mi ne of Blackrock Guard Station (Monache Jeep Trail); Sierra Nevada, Kern Plateau
2651
Comment
SD70008
Chylismia arenaria
Darley F. Howe
1968-3-19
Riverside
Graham Pass, Little Chuckwalla Mountains.
Comment
CAS-BOT-BC105830
Cirsium andrewsii
John Thomas Howell
1947-6-18
23275
Marin
Dillons Beach
Comment
CAS-BOT-BC105831
Cirsium andrewsii
John Thomas Howell
1939-6-4
14720
Marin
Pt. Reyes Lighthouse
Comment
CAS-BOT-BC105835
Cirsium andrewsii
John Thomas Howell
1939-6-4
14719
Marin
Pt. Reyes Lighthouse
Comment
CAS-BOT-BC105839
Cirsium andrewsii
John Thomas Howell
1939-7-2
14818
Marin
Elk Valley, east of Tennessee Cove
Comment
GH427941
Cirsium andrewsii
J. T. Howell
1939-6-4
14719
Unknown
Point Reyes Lighthouse
Comment
POM179706
Cirsium andrewsii
J. T. Howell
1930-6-22
5321
Marin
Valley above Rodeo Lagoon
Comment
CAS-BOT-BC284443
Cirsium brevistylum
John Thomas Howell
1944-7-9
19697
Marin
Inverness Ridge
Comment
CAS-BOT-BC277922
Cirsium canovirens
John Thomas Howell
1934-6-9
11834
Nevada
Truckee River Canyon near Floriston
Comment
CAS-BOT-BC278026
Cirsium cymosum
John Thomas Howell
1955-7-19
30812
Plumas
Portola
1478
Comment
CAS-BOT-BC278036
Cirsium cymosum
John Thomas Howell
1952-6-14
28336
Siskiyou
Near Yreka
Comment
CAS-BOT-BC278084
Cirsium douglasii var. breweri
John Thomas Howell
1943-8-9
19217
Glenn
Plaskett Meadows
1828
Comment
JEPS28114
Cirsium douglasii var. breweri
John Thomas Howell
1960-8-20
36232
Tehama
near Lassen Volcanic National Park; Morgan
1463
Comment
CAS-BOT-BC279983
Cirsium douglasii var. douglasii
John Thomas Howell
1931-9-27
8108
Mendocino
5.5 miles east of Point Arena
Comment
CAS-BOT-BC100943
Cirsium fontinale var. fontinale
John Thomas Howell
1939-6-16
14746
San Mateo
Crystal Springs Lake
Comment
CAS-BOT-BC100964
Cirsium hydrophilum var. vaseyi
John Thomas Howell
1938-6-5
13897
Marin
Azalea Flat, Mt. Tamalpais
Comment
CAS-BOT-BC280100
Cirsium occidentale var. californicum
John Thomas Howell
1958-7-23
33807
Fresno
Simpson Meadow, Middle Fork of the Kings River
1828
Comment
CAS-BOT-BC280101
Cirsium occidentale var. californicum
John Thomas Howell
1958-7-23
33807
Fresno
Simpson Meadow, Middle Fork of the Kings River
1828
Comment
OBI16745
Cirsium occidentale var. californicum
John Thomas Howell
1948-6-15
24360
San Luis Obispo
Red Hills SE of Shandon
762
Comment
SD113208
Cirsium occidentale var. occidentale
Darley F. Howe
1941-6-9
1114
Riverside
San Jacinto Mountains
1525
Comment
SDSU3799
Cirsium occidentale var. occidentale
D. F. Howe
1977-6-30
4960
Monterey
7.7 miles on Carmel Valley Rd. from junction with G17.
Comment
CAS-BOT-BC280415
Cirsium occidentale var. venustum
John Thomas Howell; Gordon H. True
1971-7-15
48528
Tulare
On Dome Lands Trail about 0.5 miles south of Church Dome, Kern Plateau
2316
Comment
CAS-BOT-BC288040
Cirsium occidentale var. venustum
John Thomas Howell
1962-6-15
37430
Butte
4 miles from Paradise on road to Oroville
106
Comment
CAS-BOT-BC280411
Cirsium occidentale var. venustum
John Thomas Howell; T. C. Fuller; G. D. Barbe
1980-7-16
53810
Tulare
Sherman Pass Road, 4.5 miles east of junction with Cherry Hill Road, Kern Plateau
2255
Comment
CAS-BOT-BC286394
Cirsium occidentale var. venustum
John Thomas Howell
1950-7-26
27359
Inyo
Head of Summit Creek, east of Olancha Pass
2773
Comment
CAS-BOT-BC288041
Cirsium occidentale var. venustum
John Thomas Howell
1955-6-15
30487
Butte
6 miles from Paradise on raod to Pentz, Sierra Nevada
426
Comment
CAS-BOT-BC288684
Cirsium quercetorum
John Thomas Howell
1939-6-4
14718
Marin
Point Reyes lighthouse
Comment
CAS-BOT-BC280448
Cirsium quercetorum
John Thomas Howell
1938-6-30
13940
Alameda
Berkeley Hills on north-east slope near head of Wildcat Canyon
Comment
CAS-BOT-BC285752
Cirsium remotifolium
John Thomas Howell
1937-7-4
13070
Sonoma
Near Petrified Forest
Comment
CAS-BOT-BC288725
Cirsium remotifolium
John Thomas Howell
1937-7-19
13133
Lake
Elk Mt
Comment
CAS-BOT-BC288735
Cirsium remotifolium
John Thomas Howell
1939-6-25
14796
Marin
Summit Avenue, Mill Valley
Comment
CAS-BOT-BC288747
Cirsium remotifolium
John Thomas Howell
1939-6-25
14797
Marin
Summit Avenue, Mill Valley
Comment
CAS-BOT-BC288730
Cirsium remotifolium
John Thomas Howell
1940-5-26
15520
Marin
San Anselmo
Comment
CAS-BOT-BC288731
Cirsium remotifolium
John Thomas Howell
1938-7-3
13942
Marin
Near W end of Lucas Valley
Comment
CAS-BOT-BC288739
Cirsium remotifolium
John Thomas Howell
1936-6-7
12631
Marin
White's Hill E of San Geronimo
Comment
CAS-BOT-BC286320
Cirsium scariosum
John Thomas Howell
1944-8-4
19911
Mono
Devils Gate south of Fales Hot Springs
Comment
CAS-BOT-BC285771
Cirsium vulgare
John Thomas Howell
1931-6-17
6723
Humboldt
Redwood Highway 1 1/2 miles n. of Orick
Comment
CAS-BOT-BC438647
Cistanthe
John Thomas Howell; T. C. Fuller; G. D. Barbe
1981-6-24
54278
Plumas
Mt. Hough
2203
Comment
CAS-BOT-BC438860
Cistanthe monandra
John Thomas Howell
1930-5-10
4806
Riverside
At top of St. John's Grade
Comment
CAS-BOT-BC162584
Clarkia
John Thomas Howell; T. C. Fuller; G. D. Barbe
1981-6-24
54213
Plumas
About 5 miles southeast of Mt. Hough on the road to Quincy - Sierra Nevada
1584
Comment
RSA53772
Clarkia bottae
D. F. Howe
1948-5-29
s.n.
Los Angeles
Santa Monica Mountains.
Comment
CAS-BOT-BC172325
Clarkia bottae
John Thomas Howell
1928-4-22
3756
Ventura
Bank above lagoon at Pt. Mugu
Comment
CAS-BOT-BC164283
Clarkia cylindrica subsp. cylindrica
John Thomas Howell; Gordon H. True
1971-7-12
48331
Kern
West slope of Greenhorn Range, 3 miles east of Glennville
1219
Comment
CAS-BOT-BC164443
Clarkia dudleyana
John Thomas Howell; Gordon H. True
1971-7-12
48330
Kern
West slope of Greenhorn Range, 3 miles east of Glennville
1219
Comment
CAS-BOT-BC172039
Clarkia gracilis subsp. gracilis
John Thomas Howell
1934-6-30
12277
Modoc
Duncan Horse Camp
Comment
CAS-BOT-BC172562
Clarkia purpurea subsp. purpurea
John Thomas Howell
1974-7-10
50550
Lassen
Elysian Valley, Sierra Nevada
1325
Comment
CAS-BOT-BC163989
Clarkia purpurea subsp. quadrivulnera
John Thomas Howell
1931-5-25
6551
Santa Barbara
Mission Ridge, Santa Barbara
Comment
SD114010
Clarkia rhomboidea
Darley F. Howe
1938-6-6
660
San Diego
Laguna Mts.
Comment
SDSU8697
Clarkia rubicunda
D. F. Howe
1963-7-31
3648
San Mateo
Sea bluff, 3 miles south of Pacifica on #1
Comment
JEPS43760
Clarkia similis
John Thomas Howell
1928-5-6
3777
Los Angeles
between Fern Lodge and Madrona Flat; San Gabriel Mts., East Fork of Santa Anita Canyon
Comment
RSA137122
Clarkia speciosa subsp. polyantha
J. T. Howell
1957-6-25
32770
Kern
Tehachapi Mountains. 3 miles NW of Keene.
762
Comment
SD26295
Clarkia williamsonii
Darley F. Howe
1939-7-20
Unknown
Near Yosemite lodge, Yosemite National Park.
Comment Read comments Jun 26 2012
CAS-BOT-BC165859
Clarkia xantiana
John Thomas Howell; Gordon H. True
1971-6-17
48109
Kern
Between Bodfish Gap and Bodfish
1097
Comment
CAS-BOT-BC439158
Claytonia exigua subsp. exigua
John Thomas Howell
1925-3-22
848
Alameda
Arroyo Mocho at ne. base of Cedar Mt.
Comment
CAS-BOT-BC439476
Claytonia parviflora subsp. parviflora
John Thomas Howell
1976-5-18
51715
Kern
Near Alta Sierra. Along old road from Alta Sierra to Wofford Heights. Greenhorn Mountains
Comment
CAS-BOT-BC439501
Claytonia parviflora subsp. parviflora
John Thomas Howell
1931-4-4
6158
Lake
St. Helena Creek Canyon, 4 miles south of Middletown
Comment
CAS-BOT-BC439500
Claytonia parviflora subsp. parviflora
John Thomas Howell
1934-3-26
11800
Lake
Mirabel Mine
Comment
CAS-BOT-BC439830
Claytonia perfoliata
John Thomas Howell
1962-7-8
38286
Kern
1.5 miles se. of Summit, Greenhorn Mountains
1524
Comment
CAS-BOT-BC439839
Claytonia perfoliata
John Thomas Howell
1965-4-26
41185
Madera
3 miles south of Oakhurst.
914
Comment
CAS-BOT-BC439847
Claytonia perfoliata
John Thomas Howell
1964-4-26
40481
Mariposa
Just southeast of Mariposa on the road to Morman Bar.
594
Comment
CAS-BOT-BC439821
Claytonia perfoliata
John Thomas Howell
1969-4-22
45541
Amador
Fiddletown
518
Comment
CAS-BOT-BC439829
Claytonia perfoliata
John Thomas Howell
1962-7-11
38541
Kern
Black Mt. Saddle, Greenhorn Mountains
1981
Comment
CAS-BOT-BC439831
Claytonia perfoliata
John Thomas Howell; Gordon H. True
1971-6-15
47860
Kern
.3 miles from Lightners Flat, on road from Mt. Breckenridge to Havilah.
1706
Comment
CAS-BOT-BC439835
Claytonia perfoliata
John Thomas Howell; Gordon H. True
1971-6-14
47680
Kern
3 mi. west of Glennville on road to Woody
1158
Comment
CAS-BOT-BC91500
Clematis lasiantha
John Thomas Howell
1931-4-10
6217
Santa Barbara
Santa Cruz Island. Canada del Puerta Zuela.
Comment
CAS-BOT-BC91440
Clematis lasiantha
John Thomas Howell
1955-7-7
30560
Monterey
Santa Lucia Mountains. Ridge southeast of Bear Mountain.
1371
Comment
CAS-BOT-BC92552
Clematis ligusticifolia
John Thomas Howell
1923-7-30
177
Mariposa
Stella Lake, Wawona.
1219
Comment
SDSU10579
Collinsia bartsiifolia var. davidsonii
D. F. Howe
1960-4-10
2850
San Luis Obispo
East of sand dunes south of Morro Bay.
Comment
SD81101
Collinsia parviflora
Darley F. Howe
1971-7-2
Unknown
El Dorado National Forest, near Lake Tahoe
1829
Comment
CAS-BOT-BC180388
Comandra umbellata subsp. californica
John Thomas Howell
1962-9-24
38865
Kern
Summit of Cook's Peak, Greenhorn Mountains. Sierra Nevada
2103
Comment
UCD96964
Conicosia pugioniformis
John Thomas Howell
1943-10-30
19337
San Francisco
East of Lake Merced, San Francisco.
Comment
CAS-BOT-BC286102
Conyza canadensis
John Thomas Howell
1962-5-21
37141
Kern
Kernville
807
Comment
CAS-BOT-BC286113
Conyza canadensis
John Thomas Howell
1974-7-10
50532
Lassen
Elysian Valley
1325
Comment
CAS-BOT-BC288939
Conyza canadensis
John Thomas Howell; Gordon H. True
1967-7-6
43215
Tulare
About 4.5 miles ENE of Pixley, from northern 1/3 of area
83
Comment
JEPS75287
Conyza floribunda
John Thomas Howell
1975-9-10
51506
San Francisco
between Market and Mission Street (sidewalk Main Street); San Francisco
Comment
JEPS62609
Cordylanthus pilosus subsp. hansenii
John Thomas Howell
1969-8-4
45876
Shasta
about 9 mi ne Cottonwood
Comment
POM179670
Cordylanthus pilosus subsp. pilosus
J. T. Howell
1930-9-14
5483
Mendocino
5 miles E of Boonville.
Comment
JEPS41341
Cordylanthus rigidus subsp. rigidus
John Thomas Howell
1962-9-22
38694
Kern
Woffard; Sierra Nevada
792
Comment
LA209076
Cordylanthus rigidus subsp. rigidus
John Thomas Howell;
1933-8-13
11500
Santa Clara
3 mi. from Smith Creek on road to Mt. Hamilton
Comment
CAS-BOT-BC287709
Coreopsis bigelovii
John Thomas Howell
1930-5-13
5044
Kern
Kern Canyon, 7 miles above Kernville
844
Comment
CAS-BOT-BC101580
Corethrogyne filaginifolia
John Thomas Howell; Gordon H. True
1967-9-20
43921
Tulare
3.3 miles from Fish Creek bridge on road to Kennedy Meadows, Kern Plateau
2225
Comment
CAS-BOT-BC101581
Corethrogyne filaginifolia
John Thomas Howell; Gordon H. True
1969-9-30
46346
Tulare
Cherry Hill Road 1 mile east of Kern Canyon highway, Brush Creek Canyon. Kern Plateau
1219
Comment
CAS-BOT-BC105732
Corethrogyne filaginifolia
John Thomas Howell
1970-11-8
47529
Kern
Desiccated bed of Lake Isabella 6 miles from South Fork Kern River bridge on road from Weldon to Kernville-Sierra Nevada
792
Comment
SDSU4706
Corethrogyne filaginifolia
D. F. Howe
1965-7-30
4093
Monterey
16.4 miles south of Monterey on #1.
Comment
GH387194
Corethrogyne filaginifolia var. pinetorum
J. T. Howell
1970-9-25
47438
Unknown
near stream below San Antonio Ski Hut, San Gabriel Mts.
2286
Comment
CAS-BOT-BC212163
Cornus sericea
John Thomas Howell
1940-7-28
15602
Fresno
Between Zumwalt Meadows and Bubbs Creek, Kings River Canyon
1524
Comment
A385535
Cornus stolonifera
J. T. Howell
1940-7-28
15602
Unknown
Between Zumwalt Meadows and Bubbs Creek, Kings River Canyon
Comment
CAS-BOT-BC291352
Cotula coronopifolia
John Thomas Howell
1965-4-27
41259
Merced
5 miles east of Los Banos
30
Comment
CAS-BOT-BC290334
Crepis
John Thomas Howell
1954-6-6
29962
Tuolumne
Twain Harte
1127
Comment
CAS-BOT-BC290494
Crepis acuminata
John Thomas Howell
1950-7-16
26952
Tulare
North of Bakeoven Meadows, South Fork of Kern River
2499
Comment
SDSU3866
Crepis intermedia
D. F. Howe
1962-5-19
3243
Lake
4 miles west of Colusa - Lake Co. line.
610
Comment
CAS-BOT-BC190103
Crypsis schoenoides
John Thomas Howell
1957-9-16
32979
Sonoma
Russian River bottom, near Guerneville.
Comment
CAS-BOT-BC189288
Cryptantha
John Thomas Howell
1976-5-19
s.n.
Kern
Between Isabella Dam and Keysville, Greenhorn Mountains
822
Comment
CAS-BOT-BC189448
Cryptantha circumscissa
John Thomas Howell
1962-5-22
37347
Tulare
Johnsondale
1423
Comment
RSA0001761
Cryptantha circumscissa var. rosulata
J. T. Howell
1949-8-12
26227
Inyo
Upper Cottonwood Lakes. Sierra Nevada.
3415
Comment
SD113305
Cryptantha clevelandii var. florosa
Darley F. Howe
1952-6-15
2228
Los Angeles
Los Angeles, Santa Monica Mountains, Mulholland Drive, ca. 9 miles from ocean
Comment
SD63843
Cryptantha cycloptera f. cycloptera
Darley F. Howe
1966-4-7
San Bernardino
Sheephole Mountain
760
Comment
CAS-BOT-BC218781
Cryptantha glomeriflora
John Thomas Howell
1950-7-24
27301
Tulare
Monache Creek, South Fork
2987
Comment
CAS-BOT-BC218789
Cryptantha glomeriflora
John Thomas Howell
1949-7-26
25812
Tulare
Golden Trout Creek
2941
Comment
CAS-BOT-BC218816
Cryptantha glomeriflora
John Thomas Howell; Gordon H. True
1967-7-3
42890
Tulare
Kern Plateau, about 1.5 miles northeast of Long Valley on road to Chimney Meadow, in metamorphic area
2103
Comment
RSA95530
Cryptantha glomeriflora
J. T. Howell
1951-7-18
s.n.
Tulare
Franklin Pass Trail.
3201
Comment
CAS-BOT-BC228628
Cryptantha humilis
John Thomas Howell
1947-8-11
24028
Inyo
South end of Coyote Ridge
3657
Comment
CAS-BOT-BC215274
Cryptantha incana
John Thomas Howell; Gordon H. True
1970-7-29
47090
Tulare
On road from Cannell Meadow to Pine Flat. Kern Plateau
2286
Comment
CAS-BOT-BC54150
Cryptantha intermedia
John Thomas Howell
1934-7-1
12334
Modoc
Duncan Horse Camp.
1355
Comment
UC909664
Cryptantha muricata
John Thomas Howell
1950-7-26
27339
Tulare
between Monanche and Summit meadows; Sierra Nevada
2590
Comment
RSA0079256
Cryptantha muricata var. jonesii
J. T. Howell
1960-6-6
35339
Fresno
Sierra Nevada: Copper Creek Trail, Kings Canyon.
1677
Comment
CAS-BOT-BC54116
Cryptantha simulans
John Thomas Howell
1934-6-11
11982
Modoc
Parker Creek, Warner Mountains
1584
Comment
SDSU5488
Cryptantha simulans
D. F. Howe
1947-5-30
1715
Kern
Greenhorn Mts.
2073
Comment
SD43579
Cryptogramma acrostichoides
Darley F. Howe
1948-8-14
San Bernardino
San Gorgonio, San Bernardino Mountains
2895
Comment
A356048
Cupressus macnabiana
J. T. Howell
1939-5-7
14650
Unknown
Lake Co., on road from Lower Lake to Knoxville near Napa Co. line
Comment
CAS-BOT-BC85477
Cupressus sargentii
John Thomas Howell
1956-1-1
30916
Marin
On serpentine above Bootjack, Mt. Tamalpais
Comment
CAS-BOT-BC224559
Cuscuta californica
John Thomas Howell
1969-8-25
45912
Tulare
Mineral King
2377
Comment
CAS-BOT-BC224568
Cuscuta californica
John Thomas Howell
1942-7-27
17287
Tulare
Deer Creek between Timber Gap and Cliff Creek
Comment
CAS-BOT-BC224397
Cuscuta californica
John Thomas Howell
1925-5-9
1010
Merced
3 miles sw. of Merced
Comment
LA39963
Cuscuta subinclusa
John Thomas Howell;
1939-9-3
15355
Marin
at mouth of San Antonio Creek
Comment
RSA128966
Cycladenia humilis var. venusta
J. T. Howell
1955-7-7
s.n.
Monterey
North slope of summit of Junipero Serra Peak. Santa Lucia Mts.
1768
Comment
SDSU84
Cylindropuntia acanthocarpa var. acanthocarpa
D. F. Howe
1968-4-23
4498
San Bernardino
23 miles south of Needles.
30
Comment
SD113449
Cylindropuntia californica var. parkeri
Darley F. Howe
1939-5-9
831
San Diego
Foothills, east of Banner. (IPB 7/07)
Comment
CAS-BOT-BC56733
Cylindropuntia prolifera
John Thomas Howell
1932-3-12
8206
Ventura
Field redacted by CAS, contact the data manager for more information
Comment
SD112973
Cymopterus aboriginum
Darley F. Howe
1971-6-23
4721
Inyo
12.5 miles southeast of entrance to Inyo National Forest, east of Big Pine
2195
Comment
SD53210
Cynoglossum grande
Darley F. Howe
1962-5-16
3267
Tuolumne
5.4 miles east of Sonora on Highway 108.
1095
Comment
SD62132
Cynosurus echinatus
D. F. Howe
1965-5-22
4071
El Dorado
10.3 miles south of Placerville
487
Comment
CAS-BOT-BC114210
Cyperus strigosus
John Thomas Howell
1959-9-20
34636
Butte
Lower foothills, eastern outskirts of Oroville.
60
Comment
CAS-BOT-BC70670
Cystopteris fragilis
John Thomas Howell; Gordon H. True
1969-6-23
45831
Plumas
Middle Fork of Feather River at Nelson Point
1249
Comment
CAS-BOT-BC70690
Cystopteris fragilis
John Thomas Howell
1947-7-25
23650
San Bernardino
Whitewater cirque, Mt. San Gorgonio, San Bernardino Mts.
3352
Comment
CAS-BOT-BC186621
Danthonia californica
John Thomas Howell; T. C. Fuller; G. D. Barbe
1981-6-23
54162
Plumas
3.25 miles west of Round Valley Reservoir dam
1633
Comment
CAS-BOT-BC186629
Danthonia californica
John Thomas Howell
1956-6-10
31547
San Francisco
North slope of Bayview Hills, San Francisco
Comment
CAS-BOT-BC186630
Danthonia californica
John Thomas Howell
1956-6-10
31546
San Francisco
North slope of Bayview Hills, San Francisco
Comment
CAS-BOT-BC186631
Danthonia californica
John Thomas Howell
1957-5-17
s.n.
San Francisco
Bayview Hills
Comment
CAS-BOT-BC186635
Danthonia californica
John Thomas Howell
1957-5-28
32520
San Francisco
Nw. side of Lone Mt.
Comment
UCD60682
Danthonia californica var. americana
John Thomas Howell
1955-6-13
30392
Trinity
Hayfork.
716
Comment
CAS-BOT-BC194363
Danthonia intermedia
John Thomas Howell
1944-8-5
19938
Tuolumne
Tuolumne Meadows
Comment
SD81246
Dasyochloa pulchella
D. F. Howe
1971-9-28
San Bernardino
New York Mts.
1676
Comment
RSA523
Daucus carota
J. T. Howell
1927-6-30
252
Orange
Bryant Ranch near Long Beach.
15
Comment
CAS-BOT-BC294096
Deinandra kelloggii
John Thomas Howell
1938-5-28
13824
Merced
Los Banos Hills
Comment
SEINET7838971
Deinandra pallida
J. T. Howell
1958-5-21
33039
Kern
5 miles east of Bakersfield
213
Comment
CAS-BOT-BC292048
Deinandra pentactis
John Thomas Howell
1929-10-12
4468
San Luis Obispo
On Atascadero Creek, 5.2 miles w. of Atascadero
Comment
CAS-BOT-BC9020
Delphinium decorum
John Thomas Howell
1931-4-18
6416
Sonoma
Larkspur Rock near Bodega Bay
Comment
SD60953
Delphinium gracilentum
Darley F. Howe
1964-7-19
3838
Fresno
Badger Flat east of Huntington Lake, Sierra Nat. Forest
2438
Comment
CAS-BOT-BC10179
Delphinium hesperium
John Thomas Howell
1946-5-19
21928
Marin
Saddle between Big and Little Carson Canyons
Comment
CAS-BOT-BC116044
Delphinium nuttallianum
John Thomas Howell; Gordon H. True; Margaret Williams
1973-5-12
49180
Lassen
Sierra Nevada, Elysian Valley northwest of Janesville.
1325
Comment
CAS-BOT-BC116097
Delphinium nuttallianum
J. T. Howell; Gordon H. True
1967-7-11
43325
Plumas
Coniferous forest about 3 miles southeast of Mt. Hough
1706
Comment
CAS-BOT-BC121743
Delphinium patens subsp. patens
John Thomas Howell; T. C. Fuller; G. D. Barbe
1981-6-24
54264
Plumas
About 1.4 mi. southeast of summit of Mt. Hough on road to Quincy
1950
Comment
CAS-BOT-BC118095
Delphinium polycladon
John Thomas Howell
1946-7-14
22257
Inyo
Mosquito Flat, Rock Creek Lake Basin
3139
Comment
CAS-BOT-BC192370
Deschampsia cespitosa subsp. cespitosa
John Thomas Howell
1941-8-1
16657
Madera
Near Garnet Lake
2956
Comment
CAS-BOT-BC192371
Deschampsia cespitosa subsp. cespitosa
John Thomas Howell
1941-8-6
16795
Madera
Shadow Creek below Lake Ediza
Comment
CAS-BOT-BC192474
Deschampsia cespitosa subsp. cespitosa
John Thomas Howell
1955-7-17
30707
Trinity
Southwest of Peanut
762
Comment
POM203128
Deschampsia cespitosa subsp. cespitosa
J. T. Howell
1934-7-9
12517
Lassen
Bridges Creek Spring.
Comment
CAS-BOT-BC192692
Deschampsia danthonioides
John Thomas Howell
1958-7-30
34128
Fresno
Simpson Meadow, Middle Fork of the Kings River
1828
Comment
CAS-BOT-BC201686
Deschampsia danthonioides
John Thomas Howell
1962-5-22
37364
Tulare
Johnsondale
1423
Comment
CAS-BOT-BC201690
Deschampsia danthonioides
John Thomas Howell; Gordon H. True
1969-9-29
46307
Tulare
Dry Lake about 5 miles south of Big Meadow on Cherry Hill Road, Kern Plateau
2316
Comment
CAS-BOT-BC201691
Deschampsia danthonioides
John Thomas Howell; Gordon H. True
1967-7-3
42841
Tulare
Rockhouse Meadow, Kern Plateau
1737
Comment
SD29595
Deschampsia danthonioides
Darley F. Howe
1941-7-7
1211
San Diego
Laguna Mts.
Comment
UC1106223
Deschampsia danthonioides
John Thomas Howell
1944-5-21
19498
Marin
Lagunitas Meadows Mt. Tamalpais; , Lagunitas Meadows
Comment
UCD63000
Deschampsia danthonioides
John Thomas Howell
1962-7-10
38501
Kern
Shirley Meadows, Greenhorn Mountains.
2011
Comment
UC1177110
Deschampsia elongata
John Thomas Howell
1946-5-19
21920
Marin
Carson Ridge
Comment
CAS-BOT-BC42954
Descurainia incana
John Thomas Howell; Gordon H. True
1966-7-11
41685
Tulare
Sierra Nevada. Kern Plateau. Poison Meadow.
2286
Comment
CAS-BOT-BC43030
Descurainia incisa subsp. incisa
John Thomas Howell
1943-7-22
18704
Placer
Summit Valley.
Comment
CAS-BOT-BC43047
Descurainia incisa subsp. incisa
John Thomas Howell
1951-7-17
27818
Tulare
Mineral King and Vicinity. White Chief Trail.
2743
Comment
CAS-BOT-BC43325
Descurainia pinnata subsp. glabra
John Thomas Howell
1960-3-26
35188
Kern
Sierra Nevada. Kernville.
Comment
SD44849
Descurainia sophia
Darley F. Howe
1952-5-21
2207
San Diego
Chula Vista.
Comment
CDA1964
Desmazeria rigida
J. T. Howell
1943-6-13
18225
Marin
Sausalito
Comment
UCD63903
Desmazeria rigida
John Thomas Howell
1943-6-13
18225
Marin
Sausalito.
60
Comment
CAS-BOT-BC402240
Dicentra chrysantha
John Thomas Howell; Gordon H. True
1971-6-15
47757
Kern
Flying Dutchman Creek canyon on Havilah-Mt. Breckenridge road
1188
Comment
CAS-BOT-BC208934
Dichanthelium acuminatum subsp. acuminatum
John Thomas Howell
1950-5-20
26320
Tulare
Three Rivers
304
Comment
CAS-BOT-BC500091
Dichelostemma capitatum
John Thomas Howell
1944-7-17
19831
Contra Costa
Canyon of Snow Basin Creek
Comment
RSA122
Dichelostemma capitatum subsp. capitatum
J. T. Howell
1928-2-7
812
Orange
Botany Garden, Rancho Santa Ana.
152
Comment
CAS-BOT-BC483262
Dichelostemma capitatum subsp. pauciflorum
John Thomas Howell
1962-6-16
37549
Butte
Magalia, Sierra Nevada
731
Comment
CAS-BOT-BC242120
Dichelostemma multiflorum
John Thomas Howell
1934-6-11
11945
Modoc
Parker Creek.
1584
Comment
CAS-BOT-BC292270
Dieteria canescens
John Thomas Howell
1972-9-15
49039
Nevada
Donner Lake vista point on Highway 80
1859
Comment
CAS-BOT-BC292271
Dieteria canescens
John Thomas Howell
1972-9-15
49038
Nevada
Donner Lake vista point on Highway 80
1859
Comment
CAS-BOT-BC290956
Dieteria canescens var. shastensis
John Thomas Howell
1925-7-1
1291
El Dorado
Highway above Armstrong's, Emerald Bay, Lake Tahoe
Comment
CAS-BOT-BC291023
Dieteria canescens var. shastensis
John Thomas Howell
1934-7-4
12391
Siskiyou
Se. corner of Siskiyou Co.
Comment
UCD63943
Digitaria ischaemum
John Thomas Howell
1959-9-20
34642
Butte
Eastern outskirts of Oroville.
60
Comment
CAS-BOT-BC209004
Digitaria sanguinalis
John Thomas Howell
1989-10-16
s.n.
Marin
Terra Linda, Freitas Park
Comment
CAS-BOT-BC153617
Diplacus
John Thomas Howell
1967-6-23
42726
Plumas
3.5 miles east of Rich Bar, East Branch Feather River
Comment
SD114422
Diplacus bigelovii var. cuspidatus
Darley F. Howe
1945-10-22
1363
Inyo
Silver Canyon, White Mts
Comment
CAS-BOT-BC150262
Diplacus calycinus
John Thomas Howell
1976-5-19
51759
Kern
Between Isabella Dam and Keysville. Greenhorn Mountains
822
Comment
CAS-BOT-BC153510
Diplacus leptaleus
John Thomas Howell
1963-7-12
39841
El Dorado
Meyers
1935
Comment
CAS-BOT-BC151416
Diplacus mephiticus
John Thomas Howell
1950-7-18
27060
Tulare
Big dune, Bakeoven Meadows, South Fork of Kern River - Sierra Nevada
2468
Comment
SD114411
Diplacus torreyi
Darley F. Howe
1971-6-29
4747
Placer
1.4 miles east of Forest Hill
1096
Comment
CAS-BOT-BC208680
Distichlis spicata
John Thomas Howell
1958-5-29
33616
Inyo
Bishop
1264
Comment
CAS-BOT-BC208681
Distichlis spicata
John Thomas Howell
1958-5-21
33062
Kern
Kernville - Sierra Nevada
807
Comment
CAS-BOT-BC208685
Distichlis spicata
John Thomas Howell; Gordon H. True
1969-5-15
45782
Kern
Kern river Canyon 9 miles from mouth of canyon - Sierra Nevada
548
Comment
OBI22326
Distichlis spicata
John Thomas Howell
1948-6-15
24375
San Luis Obispo
San Juan River Valley
366
Comment
SD81205
Ditaxis neomexicana
Darley F. Howe
1971-9-26
San Bernardino
Providence Mountains
910
Comment
SD113133
Dithyrea californica
Darley F. Howe
1937-4-10
473
San Diego
Borrego Valley
Comment
HSC17876
Dodecatheon hendersonii
J. Wendell Howe
1932-4-10
Humboldt
Lord Ellis Rd. E of Korbel (20 mi. E)
Comment
UC765462
Downingia bella
John Thomas Howell
1929-4-18
4168
Merced
Merced
Comment
SDSU124
Downingia cuspidata
D. F Howe
1962-5-14
3227
Fresno
7.41 miles east of Clovis.
183
Comment
GH33211
Downingia mirabilis
J. T. Howell
1929-4-25
4200
Unknown
5 miles northeast of Merced
Comment
POM204468
Downingia pulchella
J. T. Howell
1933-4-22
11029
San Benito
7 miles NW of Hollister.
Comment
CAS-BOT-BC41970
Draba albertina
John Thomas Howell
1948-7-24
24970
Fresno
Bullfrog Lake.
3240
Comment
CAS-BOT-BC41990
Draba albertina
John Thomas Howell
1946-7-28
22817
Inyo
Rock Creek Lake Basin. Gem Lake.
3352
Comment
CAS-BOT-BC42033
Draba albertina
John Thomas Howell
1949-7-19
25500
Tulare
Rock Creek.
3200
Comment
CAS-BOT-BC41832
Draba breweri
John Thomas Howell
1947-8-14
24095
Inyo
Inconsolable Range above Big Pine Lakes.
3779
Comment
RSA33230
Draba corrugata
D. F. Howe
1946-8-3
s.n.
San Bernardino
Sugarloaf trail from Rathbone Creek.
Comment
SDSU2379
Draba corrugata
D. F. Howe
1946-8-3
1455
San Bernardino
Trail to Sugarloaf Peak from Rathbone Creek, San Bernadino Mts.
2743
Comment Read comments Aug 5 2009
CAS-BOT-BC41375
Draba verna
John Thomas Howell
1972-4-25
48703
Mariposa
Sierra Nevada. Yosemite Valley. Near Camp Curry.
1219
Comment
CAS-BOT-BC41395
Draba verna
John Thomas Howell
1963-6-4
39402
Plumas
Sierra Valley south of Beckwourth.
1463
Comment
CAS-BOT-BC41400
Draba verna
John Thomas Howell
1976-4-2
51574
Plumas
Sierra Nevada. 2 miles northwest of Spring Garden.
1173
Comment
CAS-BOT-BC159713
Drymocallis glandulosa
John Thomas Howell; Gordon H. True
1971-7-13
48348
Kern
Pine Flat - Kern Plateau, Sierra Nevada
2194
Comment
CAS-BOT-BC527338
Drymocallis glandulosa var. reflexa
John Thomas Howell
1977-6-22
52405
Lassen
West of Susanville near the confluence of Willard Creek and Susan River, Sierra Nevada
1432
Comment
CAS-BOT-BC534972
Drymocallis glandulosa var. reflexa
John Thomas Howell; T. C. Fuller; G. D. Barbe
1981-6-23
54156
Plumas
Sierra Nevada, 3.25 miles W of Round Valley Reservoir dam
1633
Comment
CAS-BOT-BC163124
Drymocallis lactea var. lactea
John Thomas Howell
1937-7-21
13243
Trinity
Big Flat
Comment
CAS-BOT-BC410849
Dudleya caespitosa
John Thomas Howell
1933-8-19
11601
Monterey
Pt. Lobos
Comment
SD114465
Dudleya caespitosa
Darley F. Howe
1961-7-23
3126
San Luis Obispo
Ocean bluff, 12.7 miles south of San Luis Obispo/Monterey County line.
Comment
SD114483
Dudleya viscida
Darley F. Howe
1954-6-27
2417
San Diego
Near mouth of San Luis Rey River on north bank just east of bridge north of Oceanside.
Comment Read comments Jun 15 2015
SD112661
Dysphania multifida
Darley F. Howe
1942-6-18
1243
San Diego
Comment
SD112650
Dysphania pumilio
D. F. Howe
1962-8-18
3462
Fresno
Shaver Lake, Sierra National Forest.
Comment
CAS-BOT-BC197056
Echinochloa crus-galli
John Thomas Howell
1954-9-6
30071
Calaveras
Altaville
Comment
CAS-BOT-BC208555
Echinochloa crus-galli
John Thomas Howell; Walter Knight; Irja Knight
1986-10-9
6283
Sonoma
Llano Road between Gravenstein Hwy. and Todd Road near sewage plant.
Comment
UCD61201
Ehrharta erecta
John Thomas Howell
1973-1-22
49110
San Francisco
At Planetarium entrance to the Academy, Golden Gate Park, San Francisco.
Comment
RSA127379
Eleocharis acicularis var. acicularis
J. T. Howell
1946-7-4
22182
Marin
East of Aurora School at Sonoma County line
Comment
CAS-BOT-BC113489
Eleocharis bella
John Thomas Howell
1943-7-14
18291
Nevada
West side of Donner Pass near Norden.
2133
Comment
CAS-BOT-BC113520
Eleocharis bella
John Thomas Howell
1936-8-28
12874
Trinity
Forest Glen
Comment
CAS-BOT-BC112786
Eleocharis macrostachya
John Thomas Howell
1959-9-20
34659
Butte
Lower foothills, eastern outskirts of Oroville.
60
Comment
CAS-BOT-BC112810
Eleocharis macrostachya
John Thomas Howell; Gordon H. True
1971-7-15
48604
Kern
Bartolas Spring on North Fork of Bartolas Creek.
2133
Comment
CAS-BOT-BC112892
Eleocharis macrostachya
John Thomas Howell
1963-6-22
39518
Monterey
Near summit of Mustang Grade, east of Lorenzo Creek.
Comment
CAS-BOT-BC113137
Eleocharis pachycarpa
John Thomas Howell
1954-5-17
29673
El Dorado
3 miles S of Garden Valley
Comment
CAS-BOT-BC112703
Eleocharis parishii
John Thomas Howell
1936-8-23
12692
Trinity
Near Trinity Center
Comment
CAS-BOT-BC112712
Eleocharis parishii
John Thomas Howell; Gordon H. True
1967-5-30
42442
Tulare
Slopes west of Lamont Meadow, Kern Plateau.
1706
Comment
CAS-BOT-BC112056
Eleocharis quinqueflora
John Thomas Howell
1943-7-16
18384
Nevada
West side of Donner Pass near Norden
2133
Comment
RSA126460
Elodea canadensis
J. T. Howell
1943-9-5
19322 -A
Marin
Just south of Mill Valley
Comment
CAS-BOT-BC197356
Elymus
John Thomas Howell
1964-6-30
40841
San Luis Obispo
Cambria
Comment
CAS-BOT-BC203858
Elymus X hansenii
John Thomas Howell
1943-5-22
18139
Marin
Fairfax hills
Comment
CAS-BOT-BC203860
Elymus X hansenii
John Thomas Howell
1941-6-29
16333
Marin
Between Rock Spring and Laurel Dell, Mt. Tamalpais
Comment
CAS-BOT-BC203861
Elymus X hansenii
John Thomas Howell
1941-5-25
16236
Marin
Near Bootjack, Mt. Tamalpais
Comment
CAS-BOT-BC213794
Elymus X hansenii
John Thomas Howell
1942-7-24
17112
Tulare
Mineral King
Comment
UC1026509
Elymus X saundersii
John Thomas Howell
1950-7-24
27331
Tulare
e Hessian Meadows; Sierra Nevada
2743
Comment
UC1106121
Elymus californicus
John Thomas Howell
1941-7-6
16356
Marin
Mount Tamalpais, Kent Trail Mount Tamalpais; , Kent Trail
Comment
CAS-BOT-BC227356
Elymus elymoides
John Thomas Howell
1946-7-16
22421
Inyo
Mosquito Flat, Rock Creek Lake Basin
3139
Comment
CAS-BOT-BC234128
Elymus elymoides
John Thomas Howell
1950-7-22
27218
Tulare
Above timberline, Olancha Peak, Sierra Nevada
3657
Comment
RSA299284
Elymus elymoides
J. T. Howell
1958-8-12
s.n.
Madera
Near Isberg Lake. Sierra Nevada
2988
Comment
CAS-BOT-BC227724
Elymus elymoides
John Thomas Howell
1960-7-17
35495
Plumas
Lassen Volcanic National Park. Drakesbad
1828
Comment
CAS-BOT-BC227934
Elymus elymoides
John Thomas Howell
1960-8-18
36082
Tehama
Lassen Volcanic National Park. Sulphur Works Checking Station
2011
Comment
UCD61497
Elymus elymoides var. californicus
John Thomas Howell
1960-6-6
35344
Fresno
Kings Canyon at Copper Creek.
1524
Comment
RSA127234
Elymus glaucus
J. T. Howell
1942-6-21
s.n.
Marin
Carson Ridge
Comment
SD112843
Elymus glaucus
Darley F. Howe
1941-7-7
1210
San Diego
Laguna Mts.
Comment
UCD61861
Elymus glaucus
John Thomas Howell
1960-7-18
35608
Plumas
Lassen Volcanic National Park. Drakesbad.
1676
Comment
CAS-BOT-BC203518
Elymus glaucus subsp. glaucus
John Thomas Howell
1944-6-4
19543
Marin
Inverness Ridge west of Inverness
Comment
CAS-BOT-BC203527
Elymus glaucus subsp. glaucus
John Thomas Howell
1944-5-21
19490
Marin
West end of Phoenix Lake, Mt. Tamalpais
Comment
CAS-BOT-BC203807
Elymus glaucus subsp. virescens
John Thomas Howell
1943-7-4
18249
Marin
Ledum Swamp on road to Point Reyes
Comment
CAS-BOT-BC234138
Elymus multisetus
John Thomas Howell
1927-6-8
2453
Orange
Southern Puente Hills in the Santa Ana Canyon
152
Comment
UCD62442
Elymus multisetus
John Thomas Howell
1962-6-15
37528
Butte
Magalia.
731
Comment
SD64332
Elymus ponticus
D. F. Howe
1966-8-25
4299
Modoc
Fandango Pass, Warners Mountains
1858
Comment
CAS-BOT-BC213822
Elymus repens
John Thomas Howell
1957-9-1
32940
San Francisco
California St., near 16th Ave. - San Francisco
Comment
RSA54075
Elymus sierrae
J. T. Howell
1946-8-30
22922
El Dorado
Upper Angora Lake
2287
Comment
GH365146
Elymus trachycaulus
J. T. Howell
1943-8-3
18968
Unknown
Plaskett Meadows
1828
Comment
CAS-BOT-BC213513
Elymus trachycaulus subsp. trachycaulus
John Thomas Howell
1969-8-25
45917
Tulare
Mineral King - Sierra Nevada
2377
Comment
UCD62669
Elymus trachycaulus subsp. trachycaulus
John Thomas Howell
1942-7-26
17237
Tulare
Mineral King.
Comment
CAS-BOT-BC204316
Elymus trachycaulus subsp. trachycaulus
John Thomas Howell
1942-7-19
17042
Contra Costa
Near Deer Flat, Mt. Diablo
Comment
UCR244851
Elymus triticoides
D. F. Howe
1978-6-24
s.n.
Alpine
Sierra Nevada Mtns., near Hwy 89 at Markleeville
1646
Comment
SEINET10561204
Elymus triticoides subsp. multiflorus
Howell
1973-6-28
Howell 49522
Lassen
Elysian Valley, west of Janesville.
1326
Comment
RSA479476
Empetrum nigrum
Thos. Howell
1892-04
s.n.
Del Norte
Crescent City.
Comment
CAS-BOT-BC131095
Encelia actoni
John Thomas Howell
1958-5-25
33359
Inyo
Carroll Creek
1676
Comment
CAS-BOT-BC81610
Ephedra californica
John Thomas Howell
1977-3-11
52330
San Diego
bank bordering San Felipe Wash sw. of Yaqui Pass
Comment
CAS-BOT-BC81620
Ephedra californica
John Thomas Howell
1927-11-26
3247
San Diego
San Felipe Wash, half way between Borrego Valley and Yaqui Well, w. Colorado Desert
Comment
UC421705
Ephedra californica
John Thomas Howell
1928-3-11
3409
San Bernardino
e end of Morongo Valley
914
Comment
CAS-BOT-BC81764
Ephedra nevadensis
John Thomas Howell
1958-5-28
33558
Inyo
Bishop Creek
1950
Comment
CAS-BOT-BC81986
Ephedra viridis
John Thomas Howell
1950-7-28
27421
Mono
[Leevining] Lee Vining Canyon
2255
Comment
CAS-BOT-BC82026
Ephedra viridis
John Thomas Howell; Gordon H. True
1969-5-14
45739
Tulare
Marble ridge just north of Cherry Hill Road at start of Rincon Trail, Brush Creek Canyon, Kern Plateau
1463
Comment
CAS-BOT-BC165923
Epilobium
John Thomas Howell; T. C. Fuller; G. D. Barbe
1981-6-22
54097
Plumas
10.6 miles northeast of La Porte on road to Quincy
1889
Comment
POM259364
Epilobium brachycarpum
J. T. Howell
1939-8-9
15237
Siskiyou
Shackleford Creek Trail, Marble Mts.
Comment
CAS-BOT-BC166329
Epilobium canum subsp. canum
John Thomas Howell
1930-10-24
5636
Monterey
17.2 miles east of The Indians, Santa Lucia Mts.
Comment
CAS-BOT-BC166330
Epilobium canum subsp. canum
John Thomas Howell
1930-10-25
5667
Monterey
On flood-bed of Arroyo Seco River, Santa Lucia Mts.
Comment
RSA515526
Epilobium foliosum
J. T. Howell, H. Keith Wagnon
1980-5-28
53698
Plumas
Sierra Nevada: Serpentine Canyon about 3 miles east of Rich Bar, East Branch North Fork Feather River.
854
Comment
CAS-BOT-BC57080
Equisetum arvense
John Thomas Howell; Gordon H. True
1967-7-3
42856
Tulare
Rockhouse Meadow, Kern Plateau
1706
Comment
CAS-BOT-BC57830
Equisetum hyemale subsp. affine
John Thomas Howell
1959-9-24
34919
Plumas
Indian Creek Canyon near Indian Falls.
1036
Comment
SD129857
Equisetum hyemale subsp. affine
Melanie Howe, David K. Faulkner
1990-6-13
93
Inyo
Surprise Canyon
900
Comment
SBBG44569
Eragrostis mexicana
J. T. Howell
1957-8-5
San Francisco
Golden Gate Park
Comment
RSA215882
Eragrostis mexicana subsp. virescens
J. T. Howell
1957-8-5
32863
San Francisco
in Strybing Arboretum, Golden Gate Park
Comment
RSA299619
Eragrostis mexicana subsp. virescens
J. T. Howell
1977-8-11
52669
Plumas
Canyon of Little Last Chance Creek between Chilcoot and Frenchmans Reservoir
1677
Comment
CAS-BOT-BC284060
Eragrostis pectinacea var. pectinacea
John Thomas Howell
1973-10-31
50271
Madera
Madera
83
Comment
CAS-BOT-BC284065
Eragrostis pectinacea var. pectinacea
John Thomas Howell
1973-7-25
49967
Merced
Near Gustine
30
Comment
CAS-BOT-BC209615
Eremalche parryi
John Thomas Howell
1963-5-7
39229
Monterey
On San Lorenzo Creek, 6 miles northeast of King City
182
Comment
SD62094
Eremalche parryi subsp. kernensis
Darley F. Howe
1965-3-27
Kern
7.6 miles from Mocal Road on Crocker Springs Road.
Comment
CAS-BOT-BC174183
Eremogone congesta var. charlestonensis
John Thomas Howell
1977-6-22
52401
Lassen
North end of Eagle Lake
1584
Comment
CAS-BOT-BC168337
Eremogone congesta var. congesta
John Thomas Howell
1942-7-29
17364
Tulare
Little Five Lakes Basin
Comment
CAS-BOT-BC181654
Eremogone kingii var. glabrescens
John Thomas Howell
1944-8-10
20296
Mono
Dana Plateau
Comment
CAS-BOT-BC162949
Eremothera boothii subsp. desertorum
John Thomas Howell
1928-6-17
4002 B
Inyo
Panamint City, Surprise Canyon, Panamint Mts.
Comment
UC908106
Eriastrum eremicum subsp. eremicum
John Thomas Howell
1927-8-1
2890
San Bernardino
upper part of Morongo Valley Mojave(?) Desert (e end)
Comment
SDSU6348
Ericameria albida
D. F. Howe
1971-9-29
4781
Inyo
5 miles east of Death Valley Junction.
610
Comment Read comments Oct 31 2011
CAS-BOT-BC286740
Ericameria cuneata var. cuneata
John Thomas Howell
1962-9-21
38676
Kern
Kern River Canyon
304
Comment
SDSU3901
Ericameria ericoides
D. F. Howe
1977-10-6
5017
Santa Barbara
8 miles north of Lompoc.
Comment
JEPS53987
Ericameria nauseosa var. mohavensis
John Thomas Howell
1967-11-6
44178
Kern
4.5 mi w of Wofford Heights; Sierra Nevada, Greenhorn Mountains
1219
Comment
JEPS53990
Ericameria nauseosa var. mohavensis
John Thomas Howell
1967-11-5
44168
Kern
about 2.5 mi above Kernville; Sierra Nevada, Kern River Canyon
838
Comment
CAS-BOT-BC294156
Ericameria nauseosa var. speciosa
John Thomas Howell
1963-8-21
40219
Inyo
Whitney Portal road
2255
Comment
SBBG50454
Ericameria nauseosa var. speciosa
J. T. Howell
1974-9-20
50902
Plumas
near Spring Garden
1158
Comment
SEINET8079195
Ericameria nauseosa var. speciosa
J. T. Howell
1959-9-25
s.n.
Plumas
Summit of Beckwourth Pass
1589
Comment
SD112578
Ericameria parishii var. parishii
Darley F. Howe
1938-10-4
760
San Diego
Laguna Junction.
Comment
CAS-BOT-BC293114
Ericameria parryi var. vulcanica
John Thomas Howell; Gordon H. True
1969-10-1
46425
Tulare
Brush Creek Overlook, about 2 miles north of Poison Meadow, Kern Plateau
2468
Comment
CAS-BOT-BC293122
Ericameria pinifolia
John Thomas Howell
1927-11-13
3205
Los Angeles
3/4 mile south of Elizabeth Lake, Liebre Mts.
1005
Comment
SD28291
Ericameria teretifolia
Darley F. Howe
1940-11-2
1045
Inyo
Cottonwood Creek.
Comment
CAS-BOT-BC293393
Erigeron algidus
John Thomas Howell
1938-8-11
14537
Tuolumne
Mt. Dana
3657
Comment
CAS-BOT-BC294595
Erigeron breweri var. breweri
John Thomas Howell
1958-7-22
33728
Fresno
Simpson Meadow, Middle Fork of the Kings River
1828
Comment
CAS-BOT-BC296015
Erigeron divergens
John Thomas Howell; T. C. Fuller; G. D. Barbe
1981-6-23
54168
Plumas
3.25 miles west of Round Valley Reservoir Dam, Sierra Nevada
1633
Comment
CAS-BOT-BC296844
Erigeron divergens
John Thomas Howell
1930-5-13
5036
Kern
Kern Canyon 7 miles above Kernville
844
Comment
CAS-BOT-BC298570
Erigeron divergens
John Thomas Howell
1934-7-4
12414
Shasta
3 miles sw. of Fall River Mills
Comment
SD42626
Erigeron divergens
Darley F. Howe
1947-6-21
San Bernardino
Sugarloaf Post Office.
Comment
CAS-BOT-BC300419
Erigeron eatonii var. sonnei
John Thomas Howell
1977-6-21
52393
Plumas
Near Almanor P. O., Lake Almanor
1371
Comment
CAS-BOT-BC49630
Erigeron filifolius
John Thomas Howell
1934-6-12
12014
Modoc
Between Davis Creek and Plum Valley.
Comment
CAS-BOT-BC308822
Erigeron glacialis var. hirsutus
John Thomas Howell; Gordon H. True
1971-7-14
48505
Tulare
Round Meadow about 3 miles northwest of Sirretta Peak, Kern Plateau, Sierra Nevada
2621
Comment
SD56824
Erigeron glaucus
Darley F. Howe
1963-5-21
Monterey
Monterey Peninsula
Comment
CAS-BOT-BC295227
Erigeron inornatus
John Thomas Howell
1960-7-19
35673
Plumas
Lassen Volcanic National Park. Drakesbad
1828
Comment
SD112285
Erigeron lassenianus
Darley F. Howe
1958-7-29
2662
Mono
8 miles north of Bridgeport on Highway 395.
Comment Read comments Jul 16 2014
CAS-BOT-BC295326
Erigeron lonchophyllus
John Thomas Howell; Gordon H. True
1969-9-30
46404
Tulare
Pipe Spring on Cherry Hill Road, west side of Big Meadow, Kern Plateau
2407
Comment
CAS-BOT-BC300167
Erigeron pygmaeus
John Thomas Howell
1947-8-11
23986
Inyo
Inconsolable Range
3810
Comment
RSA210517
Eriochloa acuminata
J. T. Howell, Gordon H. True
1967-9-21
43985
Tulare
About 4.5 miles ENE of Pixley.
84
Comment
CAS-BOT-BC278496
Eriochloa contracta
John Thomas Howell
1973-10-31
50267
Merced
Los Banos
Comment
CAS-BOT-BC216089
Eriodictyon californicum
John Thomas Howell
1946-5-12
21808
Marin
Carson Ridge
Comment
RSA8478
Eriodictyon tomentosum
J. T. Howell
1933-8-17
11541
San Benito
4 miles N of Pinnacles
Comment
SDSU6042
Eriodictyon trichocalyx
D. F Howe
1947-5-5
1530
Los Angeles
Pallet Creek, North side of San Gabriel Mts.
Comment
CAS-BOT-BC248485
Eriogonum angulosum
John Thomas Howell
1953-6-14
29066
Monterey
Hastings Reservation, Santa Lucia Mts.
Comment
CAS-BOT-BC248521
Eriogonum angulosum
John Thomas Howell
1933-8-18
11588
Monterey
6 miles west of Jamesburg, Santa Lucia Mts.
Comment
CAS-BOT-BC248531
Eriogonum angulosum
John Thomas Howell
1933-4-22
11042
San Benito
1.5 miles s. of Tres Pinos
Comment
CAS-BOT-BC248535
Eriogonum angulosum
John Thomas Howell
1937-5-20
12973
San Benito
8 miles east of Paicines
Comment
CAS-BOT-BC248525
Eriogonum angulosum
John Thomas Howell
1933-8-16
11520
San Benito
1 mile n. of Paicines
Comment
SD56742
Eriogonum angulosum
Darley F. Howe
1963-7-1
3572
San Benito
10 mi. so. of Hollister on #25
152
Comment
CAS-BOT-BC248649
Eriogonum apricum
John Thomas Howell
1954-9-5
30033
Amador
Unspecified
Comment
SEINET10623779
Eriogonum apricum
John Thomas Howell
1954-1
Amador
Comment
CAS-BOT-BC248754
Eriogonum argillosum
John Thomas Howell
1937-5-20
12972
San Benito
8 miles east of Paicines
Comment
RSA0004938
Eriogonum argillosum
J. T. Howell
1931-3-23
5999
Monterey
Poncho Rico Canyon
Comment
RSA208
Eriogonum baileyi var. baileyi
J. T. Howell
1927-7-9
289
San Bernardino
Deadman's Point, Mojave Desert.
915
Comment
CAS-BOT-BC244042
Eriogonum baileyi var. praebens
John Thomas Howell
1963-8-20
40189
Inyo
Whitney Portal, Sierra Nevada
2438
Comment
CAS-BOT-BC241718
Eriogonum brachyanthum
John Thomas Howell
1933-6-29
11399
San Bernardino
Victorville
Comment
UCD99720
Eriogonum brachyanthum
John Thomas Howell
1963-8-21
40243
Inyo
Bishop Creek.
1950
Comment
RSA766404
Eriogonum brachypodum
J. T. Howell
1927-11-12
3191
Kern
Red Rock Canyon.
762
Comment
CAS-BOT-BC242694
Eriogonum covilleanum
John Thomas Howell
1963-8-7
40093
Monterey
Mustang Grade between Mustang Summit and Priest Valley
Comment
RSA128973
Eriogonum deflexum var. baratum
J. T. Howell
1957-6-24
s.n.
Kern
4 miles north of Red rock Canyon
1006
Comment
NY762319
Eriogonum deflexum var. nevadense
J. T. Howell
1981-8-13
54580
Mono
Just north of Old Sherwin Hill Summit on Old Sherwin Grade Road
1950.7
Comment
POM248707
Eriogonum esmeraldense var. esmeraldense
J. T. Howell
1938-8-7
14348
Mono
Near Little Round Valley.
2134
Comment
CAS-BOT-BC253216
Eriogonum fasciculatum var. fasciculatum
John Thomas Howell
1927-7-24
2835
Orange
Near mouth of Claymine Canyon, Santa Ana Canyon
152
Comment
CAS-BOT-BC250036
Eriogonum fasciculatum var. polifolium
John Thomas Howell
1938-5-28
13832
Merced
Los Banos Hills
Comment
CAS-BOT-BC253376
Eriogonum fasciculatum var. polifolium
John Thomas Howell
1927-8-1
2901
San Bernardino
Short distance east of Morongo Valley on road to Warren's Well, s. Mojave Desert
914
Comment
CAS-BOT-BC250362
Eriogonum gossypinum
John Thomas Howell
1958-5-21
33033
Kern
7 miles east of Bakersfield
213
Comment
RSA137134
Eriogonum gossypinum
J. T. Howell
1957-6-25
s.n.
Kern
6 miles NW of Tehachapi.
1098
Comment
CAS-BOT-BC250535
Eriogonum gracile
John Thomas Howell
1927-8-17
3003
San Luis Obispo
4 miles south of Templeton
243
Comment
SD114055
Eriogonum gracile
Darley F. Howe
1950-10-1
2044
San Diego
Box Canyon
Comment
CAS-BOT-BC250384
Eriogonum gracile
John Thomas Howell
1929-7-20
4330
Contra Costa
2 miles s. of Oakley
Comment
UC517520
Eriogonum gracillimum
John Thomas Howell
1931-6-6
6674
Kern
Bakersfield
Comment
SDSU6553
Eriogonum hirtellum
D. F. Howe
1962-8-4
3385
Siskiyou
Baldy Mountain.
1433
Comment
CAS-BOT-BC261246
Eriogonum hirtiflorum
John Thomas Howell
1945-6-21
21200
Lake
Bartlett Flat
Comment
UCD100155
Eriogonum hirtiflorum
John Thomas Howell
1962-7-8
38275
Kern
south side of Black Mt. Greenhorn Range.
1432
Comment
RSA136757
Eriogonum hirtiflorum
J. T. Howell
1955-7-7
30529
Monterey
Along fire road between Junipero Serra Peak and head of Santa Lucia Creek, Santa Lucia Mountains.
1311
Comment
CAS-BOT-BC256813
Eriogonum incanum
John Thomas Howell
1946-7-20
22600
Fresno
South of Mono Rock
3596
Comment
CAS-BOT-BC257562
Eriogonum inflatum
John Thomas Howell
1938-8-7
14370
Mono
Sherwin Grade
Comment
CAS-BOT-BC33970
Eriogonum kearneyi
John Thomas Howell
1938-8-7
14362
Mono
Summit of Sherwin Grade
1981
Comment
SD45773
Eriogonum kennedyi var. kennedyi
D. F. Howe
1954-5-29
2398
Ventura
Ridge bet. Lockwood Valley & Grade v.
Comment
CAS-BOT-BC263687
Eriogonum luteolum var. luteolum
John Thomas Howell
1955-7-17
30699
Trinity
Slopes southwest of Peanut
762
Comment
SDSU6757
Eriogonum marifolium
D. F. Howe
1962-8-6
3406
Siskiyou
Mt Shasta, Shasta National Forest.
2438
Comment
CAS-BOT-BC263287
Eriogonum marifolium var. marifolium
John Thomas Howell
1943-7-21
18649
Placer
Donner Pass to Mt. Lincoln
Comment
CAS-BOT-BC263303
Eriogonum marifolium var. marifolium
John Thomas Howell; Gordon H. True
1967-7-11
43342
Plumas
Summit ridge of Mt. Hough
2194
Comment
SDSU6781
Eriogonum nidularium
D. F. Howe
1971-6-21
4716
Inyo
7 miles south of Big Pine.
1189
Comment
CAS-BOT-BC264820
Eriogonum nudum var. deductum
John Thomas Howell
1951-6-26
27546
Plumas
Feather River Canyon, Sierra Nevada
853
Comment
CAS-BOT-BC261394
Eriogonum nudum var. indictum
John Thomas Howell
1931-3-18
5849
Fresno
Oil Canyon
Comment
CAS-BOT-BC264830
Eriogonum nudum var. nudum
John Thomas Howell
1955-7-16
30658
Trinity
Trinity River Canyon, 2 miles east of Junction City
487
Comment
CAS-BOT-BC264831
Eriogonum nudum var. nudum
John Thomas Howell
1955-6-13
30338
Trinity
6 miles southwest of Douglas City
609
Comment
CAS-BOT-BC264835
Eriogonum nudum var. nudum
John Thomas Howell
1937-7-21
13226
Trinity
Big Flat
Comment
CAS-BOT-BC266778
Eriogonum nudum var. scapigerum
John Thomas Howell
1946-7-29
s.n.
Inyo
Long Lake, Rock Creek Lake Basin
3230
Comment
UCD100765
Eriogonum parishii
John Thomas Howell
1967-8-9
43625
Tulare
6 miles from Kennedy Meadows on road to Troy Meadow. Kern Plateau.
2286
Comment
CAS-BOT-BC258423
Eriogonum rosense
John Thomas Howell
1947-8-11
24002
Inyo
South end of Coyote Ridge
3657
Comment
CAS-BOT-BC267732
Eriogonum roseum
John Thomas Howell
1931-10-11
8140
Mariposa
Bootjack
Comment
CAS-BOT-BC268384
Eriogonum roseum
John Thomas Howell
1948-6-15
24369
San Luis Obispo
Hughes Canyon se. of Shandon
609
Comment
RSA766268
Eriogonum saxatile
J. T. Howell
1930-5-13
5048
Kern
Kern Canyon, 7 miles above Kernville
845
Comment
RSA40026
Eriogonum spergulinum var. reddingianum
J. T. Howell
1944-8-7
20050
Tuolumne
Toulumme Meadows
Comment
SD26328
Eriogonum spergulinum var. spergulinum
Darley F. Howe
1939-7-19
925
Unknown
McGurk Valley, Yosemite National Park
Comment
UCD101233
Eriogonum spergulinum var. spergulinum
John Thomas Howell; Gordon H. True
1967-8-7
43393
Tulare
Kern Plateau; about 3 miles northwest of Beach Meadow.
2529
Comment
UCD101234
Eriogonum spergulinum var. spergulinum
John Thomas Howell; Gordon H. True
1969-10-1
46457
Tulare
Kern Plateau; south of Taylor Meadow on road to Taylor Creek crossing.
2225
Comment
CAS-BOT-BC263651
Eriogonum trichopes
John Thomas Howell
1927-11-25
33236
San Diego
Central part of Borrego Valley, w. Colorado Desert
182
Comment
CAS-BOT-BC267505
Eriogonum umbellatum
John Thomas Howell
1974-9-20
50898
Plumas
About 2 miles from Spring Garden on road to Quincy
1158
Comment
CAS-BOT-BC267501
Eriogonum umbellatum
John Thomas Howell
1951-6-29
27748
Plumas
Spring Garden Creek
1158
Comment
CAS-BOT-BC267835
Eriogonum umbellatum var. bahiiforme
John Thomas Howell
1933-8-13
11501
Santa Clara
Summit of Mt. Hamilton
Comment
CAS-BOT-BC267847
Eriogonum umbellatum var. chlorothamnus
John Thomas Howell
1963-8-21
40226
Inyo
Whitney Portal Road, Sierra Nevada
2255
Comment
CAS-BOT-BC267825
Eriogonum umbellatum var. covillei
John Thomas Howell
1949-8-9
26166
Tulare
Army Pass
3535
Comment
CAS-BOT-BC268137
Eriogonum umbellatum var. furcosum
John Thomas Howell
1962-5-22
37371
Tulare
1.5 mi. east of Johnsondale
1371
Comment
HSC17370
Eriogonum umbellatum var. goodmanii
J. Wendell Howe
1934-7-21
1314
Humboldt
Horse Mtn., Cold Springs
Comment
CAS-BOT-BC265182
Eriogonum umbellatum var. nevadense
John Thomas Howell; Gordon H. True
1967-8-9
73643
Tulare
Ca. 2.5 miles north of Blackrock Guard Statoin on Monache Jeep Trail, Kern Plateau, Sierra Nevada
2682
Comment
SD77867
Eriogonum umbellatum var. nevadense
D. F. Howe
1970-8-26
Mono
14.7 miles west of Sonora Junction on Sonora Pass Road
2743
Comment
CAS-BOT-BC262139
Eriogonum umbellatum var. subaridum
John Thomas Howell
1963-8-20
40142
Kern
Walker Pass
1600
Comment
UCD101326
Eriogonum ursinum
John Thomas Howell
1960-8-19
36179
Shasta
Lassen Volcanic National Park; Brokeoff Mt.
2743
Comment
RSA246
Eriogonum wrightii var. membranaceum
J. T. Howell
1927-8-2
556
Riverside
Near Strawberry Valley, Mt. San Jacinto.
1677
Comment
SD51031
Eriophyllum ambiguum var. paleaceum
Darley F. Howe
1960-4-28
2916
San Bernardino
Kingston Mountains.
915
Comment
CAS-BOT-BC297870
Eriophyllum confertiflorum
John Thomas Howell
1962-5-23
37395
Kern
Kern River Canyon near Bodfish
792
Comment
CAS-BOT-BC297871
Eriophyllum confertiflorum
John Thomas Howell
1962-5-21
37125
Kern
Kernville
807
Comment
CAS-BOT-BC297987
Eriophyllum confertiflorum
John Thomas Howell
1944-6-25
19665
Marin
Between Chinese Camp and McNear's Landing
Comment
CAS-BOT-BC304065
Eriophyllum confertiflorum
John Thomas Howell
1956-6-10
31537
San Francisco
North slope of Bay View Hills, San Francisco
Comment
CAS-BOT-BC301121
Eriophyllum lanatum var. achilleoides
John Thomas Howell
1937-7-29
13650
Siskiyou
Scott Mt. between Trinity and Siskiyou cos.
Comment
CAS-BOT-BC296928
Eriophyllum wallacei
John Thomas Howell
1928-3-11
3445
Riverside
Garnet Station, Coachella Valley, Colorado Desert
213
Comment
RSA51279
Erodium brachycarpum
J. T. Howell
1947-4-23
23075
Marin
East side of Drakes Estero, Point Reyes Peninsula.
Comment
CAS-BOT-BC40623
Erysimum capitatum
John Thomas Howell
1930-5-12
4931
Kern
Red Rock Canyon.
Comment
CAS-BOT-BC41537
Erysimum capitatum
John Thomas Howell; R. C. Barneby
1954-5-9
29310
Fresno
Sierra Nevada. Piedra.
170
Comment
CAS-BOT-BC54543
Erysimum capitatum
John Thomas Howell
1933-8-13
11508
Santa Clara
Summit of Mount Hamilton.
Comment
SD75830
Erythranthe guttata
Darley F. Howe
1969-8-12
Mono
East of Sonora Pass
2438
Comment
SD53151
Erythranthe primuloides
Darley F. Howe
1962-8-14
Fresno
Shave Lake, Sierra National Forest, meadow
1707
Comment
CAS-BOT-BC110552
Eschscholzia
John Thomas Howell
1955-7-19
30752
Plumas
Sierra Nevada. Beckwourth.
1493
Comment
SD113752
Eschscholzia lobbii
Darley F. Howe
1948-5-21
1917
Placer
Comment
CAS-BOT-BC83080
Eschscholzia minutiflora
John Thomas Howell; Gordon H. True
1973-4-6
49129
Kern
Sand Canyon.
Comment
SEINET3094465
Eucnide urens
Melanie Howe, David K. Faulkner
1990-6-13
87
Inyo
Suprise Canyon.
900
Comment
SDSU6037
Eucrypta micrantha
D. F Howe
1965-5-16
4041
San Bernardino
1372
Comment
CAS-BOT-BC202421
Euphorbia ocellata
John Thomas Howell
1959-9-19
34613
Butte
5 miles west of Oroville
45
Comment
CAS-BOT-BC202399
Euphorbia ocellata
John Thomas Howell
1931-10-12
8148
Mariposa
3 miles from Mt. Bullion on Coulterville road
Comment
CAS-BOT-BC202430
Euphorbia ocellata
John Thomas Howell
1950-8-27
27426
Fresno
Near Friant Dam
Comment
UCD142684
Euphorbia prostrata
John Thomas Howell
1942-7-6
23328
Marin
Mill Valley.
Comment
UCD142807
Euphorbia serpillifolia var. hirtula
John Thomas Howell; Gordon H. True
1969-9-30
46368
Tulare
Sierra Nevada. Kern Plateau, Burton Camp, Cherry Hill Road, Brush Creek Canyon.
1737
Comment
CAS-BOT-BC312218
Eurybia radulina
John Thomas Howell
1946-9-15
23002
Marin
Near Potrero Meadows, Mt. Tamalpais
Comment
SD114504
Fagonia laevis
Darley F. Howe
1937-5-8
499
San Diego
Canyon off road from San Ysidro northeast to Otay Mesa
Comment
SD136117
Fagonia laevis
Melanie Howe, R. M. Garcia
1994-1-17
376
Imperial
Near intersection of SR-78 and S34, common in open areas around intersection. (IPB 10/07)
Comment
SD56833
Festuca californica
D. F. Howe
1963-5-23
3528
Sonoma
3.8 miles north of Cloverdale on #128
334
Comment
SDSU1110
Festuca californica
D. F. Howe
1963-5-23
3528
Sonoma
3.8 miles north of Cloverdale on #128
335
Comment
UCD65826
Festuca californica
John Thomas Howell; Gordon H. True
1967-5-9
42243
Butte
On NW side of Feather River Canyon near Pulga Bridge.
426
Comment
CAS-BOT-BC278867
Festuca occidentalis
John Thomas Howell
1944-6-10
19582
Santa Cruz
1.5 miles north of Felton
Comment
CAS-BOT-BC278902
Festuca occidentalis
John Thomas Howell
1951-7-15
27778
Tulare
Mineral King road
1828
Comment
UCD66141
Festuca occidentalis
John Thomas Howell
1958-8-2
34187
Fresno
Copper Creek Canyon trail.
2286
Comment
CAS-BOT-BC279022
Festuca rubra
John Thomas Howell; Gordon H. True
1969-6-23
45841
Plumas
Quincy
1036
Comment
CAS-BOT-BC279032
Festuca rubra
John Thomas Howell
1947-7-22
23508
San Bernardino
South Fork, Santa Ana River, San Bernardino Mts.
2377
Comment
CAS-BOT-BC278525
Festuca saximontana
John Thomas Howell
1941-7-31
16630
Madera
San Joaquin Mt.
3352
Comment
CAS-BOT-BC278539
Festuca saximontana
John Thomas Howell
1946-7-20
22598
Fresno
South of Mono Rock
3596
Comment
CAS-BOT-BC278547
Festuca saximontana
John Thomas Howell
1947-8-10
23967
Inyo
Near Sam Mack Lake, Big Pine Lakes
3657
Comment
CAS-BOT-BC278618
Festuca subulata
John Thomas Howell
1958-7-23
33839
Fresno
Simpson Meadow, Middle Fork of the Kings River
1828
Comment
CAS-BOT-BC77691
Ficus carica
John Thomas Howell
1961-9-22
36750
Butte
Feather River Highway 3 miles from Oroville
Comment
CAS-BOT-BC53908
Frangula californica subsp. cuspidata
John Thomas Howell; Gordon H. True
1967-8-7
43451
Tulare
Sierra Nevada - Kern Plateau - Lion Creek just north of Beach Meadow
2407
Comment
CAS-BOT-BC55750
Frangula rubra subsp. rubra
John Thomas Howell; R. C. Barneby
1954-5-10
29373
Fresno
Kerckhoff Reservoir
320
Comment
CAS-BOT-BC223667
Frankenia salina
John Thomas Howell; Gordon H. True
1967-5-31
42499
Tulare
From S 1/3 of area. About 4 1/2 miles east-northeast of Pixley
83
Comment
SD114518
Fremontodendron decumbens
Darley F. Howe
1978-6-25
5061
El Dorado
Pine Hill
Comment
CAS-BOT-BC130248
Fritillaria biflora
John Thomas Howell
1928-3-2
3361
Los Angeles
Vermont [Canon] Canyon, Griffith Park, Los Angeles
Comment
SD45767
Fritillaria pinetorum
Darley F. Howe
1954-5-29
2393
Ventura
Mount Pinos.
2591
Comment
CAS-BOT-BC130401
Fritillaria pinetorum
John Thomas Howell
1928-5-26
3835
Ventura
Between Chula Vista Camp and summit ridge of Pt. Pinos
Comment
GH385706
Galium angustifolium
J. T. Howell
1928-5-19
3792
Unknown
Anacapa Island
Comment
SD114357
Galium angustifolium subsp. angustifolium
Darley F. Howe
1935-5-5
203
San Diego
Hills near Otay
Comment
GH385821
Galium bolanderi
J. T. Howell
1967-6-22
42654
Unknown
Near mouth of Chambers Creek. Canyon of the Feather River North Fork
609
Comment
GH385782
Galium californicum
J. T. Howell
1930-6-15
5307
Unknown
West side of Grizzley Peak, Berkeley Hills
Comment
RSA67159
Galium californicum subsp. californicum
J. T. Howell
1930-6-8
5246
Sonoma
1 mile east of Bodega Bay
Comment
RSA118024
Galium clementis
J. T. Howell
1955-5-17
s.n.
Monterey
East end of summit ridge of Juniper Serra Peak.
1768
Comment
CAS-BOT-BC217582
Galium hypotrichium subsp. subalpinum
John Thomas Howell
1940-8-2
15878
Tulare
Slope north of Reflection Lake
3352
Comment
POM203310
Galium nuttallii subsp. insulare
J. T. Howell
1931-4-14
6376
Santa Barbara
Santa Cruz Island. China Harbor.
Comment
UCD121879
Galium parisiense
John Thomas Howell
1942-6-7
16973
Marin
San Anselmo Canyon above Fairfax.
Comment
CAS-BOT-BC191897
Garrya flavescens
John Thomas Howell
1952-10-27
28887
Tulare
Amphitheater Point on road to Giant Forest, Sequoia Park
Comment
CAS-BOT-BC186313
Garrya flavescens
John Thomas Howell
1940-8-10
16126
Fresno
Near mouth of Bubbs Creek
Comment
UCD121133
Garrya fremontii
John Thomas Howell
1960-5-1
35228
Tuolumne
NE of Long Barn.
Comment
UCD121134
Garrya fremontii
John Thomas Howell
1961-9-23
36891
Plumas
Englemine.
1097
Comment
CAS-BOT-BC56236
Gaultheria humifusa
John Thomas Howell
1951-7-21
28076
Tulare
White Chief region
3048
Comment
CAS-BOT-BC56270
Gaultheria humifusa
John Thomas Howell
1944-8-12
20358
Tuolumne
Gaylor Lakes
3200
Comment
SDSU2867
Gaultheria shallon
D. F. Howe
1961-8-1
3106
Humboldt
6 miles north of Trinidad on #101.
Comment
CAS-BOT-BC478876
Gayophytum
John Thomas Howell; Gordon H. True
1967-7-5
43189
Tulare
2.8 miles north of South Fork Kern River bridge on road to Troy Meadow
2194
Comment
RSA34670
Gayophytum diffusum subsp. parviflorum
J. T. Howell
1946-7-24
22684
Fresno
Mono Creek between Fourth Recess and Gold Lake
Comment
SD112701
Geraea viscida
Darley F. Howe
1941-7-10
1131
San Diego
Jacumba
Comment
UCD103349
Geranium dissectum
John Thomas Howell
1964-4-28
40555
Mariposa
Near Morman Bar on road to Ben Hur.
Comment
SDSU7336
Geranium molle
D. F. Howe
1959-8-4
2799
Trinity
Roadside, 51 miles west of Weaverville on #299.
152
Comment Read comments Dec 5 2008
CDA4653
Geranium potentilloides
J. T. Howell
1969-4-2
45514
Marin
Point Reyes National Seashore, Meadow Trail to Mt. Wittenberg.
0
Comment
CAS-BOT-BC459359
Geum macrophyllum
John Thomas Howell; T. C. Fuller; G. D. Barbe
1981-8-12
54530 .
Inyo
Mosquito Flat, north end of Rock Creek Lake Basin, Sierra Nevada
3124
Comment
RSA636
Gilia angelensis
J. T. Howell
1928-2-25
836
Orange
Near Bee Canyon, Rancho Santa Ana.
152
Comment
SD70012
Gilia latiflora subsp. elongata
Darley F. Howe
1968-3-21
4496
San Bernardino
12.5 miles west of Barstow on Highway 58.
366
Comment
UC908531
Gilia leptantha subsp. pinetorum
John Thomas Howell
1928-5-26
3836
Ventura
between Chula Vista Camp and Mt. Pinos; summit of Mt. Pinos
Comment
RSA469454
Gilia malior
J. T. Howell
1948-4-26
24259
Kern
2 miles north of Mohave.
Comment
SDSU3085
Gilia modocensis
D. F. Howe
1962-4-15
3194
San Bernardino
1.5 miles N of Summit of Cajon Pass Road (#395).
Comment
CAS-BOT-BC402084
Gilia ochroleuca subsp. bizonata
John Thomas Howell; Catherine Best
1983-4-19
s.n.
Tulare
Kern River Canyon between Kernville and Road's End
1066
Comment
SD127824
Glebionis coronaria
Melanie Howe
1988-3-30
15
San Diego
El Cajon, vacant lot next to parking lot of Broadway Animal Hospital.
Comment
CAS-BOT-BC303816
Gnaphalium
John Thomas Howell
1976-7-16
51892
Plumas
Spanish Creek at mouth of Wapaunsie Creek
1097
Comment
RSA860
Gnaphalium chilense
J. T. Howell
1927-10-29
781
Orange
Bryant Ranch near Long Beach.
15
Comment
CAS-BOT-BC303195
Gnaphalium palustre
John Thomas Howell
1950-7-15
26912
Tulare
Bakeoven Meadows, South Fork of Kern River
2468
Comment
SD112741
Gnaphalium palustre
Darley F. Howe
1947-6-27
1751
San Bernardino
Bluff Lake
2440
Comment
CAS-BOT-BC302490
Gnaphalium palustre
John Thomas Howell
1976-10-29
52274
El Dorado
Bottom of Folsom Lake at Brown's Ravine boat landing
121
Comment
CAS-BOT-BC307361
Gnaphalium palustre
John Thomas Howell
1969-9-13
46144
Nevada
3 miles from Boca on road to Hobart Mills, Sierra Nevada
1828
Comment
CAS-BOT-BC304701
Grindelia hirsutula
John Thomas Howell
1932-10-16
10827
Alameda
Wash of Mocho Creek, Livermore Valley
Comment
CAS-BOT-BC304846
Grindelia hirsutula
John Thomas Howell
1933-11-19
11728
Solano
Suisun Marshes at Pierce Station
Comment
CAS-BOT-BC304854
Grindelia hirsutula
John Thomas Howell
1933-9-17
11671
Solano
Suisun
Comment
CAS-BOT-BC304900
Grindelia hirsutula
J. T. Howell
1932-10-8
10804
Napa
Napa River
Comment
CAS-BOT-BC304901
Grindelia hirsutula
J. T. Howell
1932-10-8
10804
Napa
Napa River
Comment
CAS-BOT-BC305138
Grindelia hirsutula
J. T. Howell
1930-5-19
5179
Santa Barbara
Summerland
Comment
CAS-BOT-BC314569
Grindelia hirsutula
John Thomas Howell
1929-10-25
4532
Solano
North end of Carquinez Bridge
Comment
CAS-BOT-BC314605
Grindelia hirsutula
John Thomas Howell; Gordon H. True
1971-5-26
47637
Placer
Northern limits of Lincoln
48
Comment
UC1176895
Grindelia hirsutula
John Thomas Howell
1946-11-3
23033
Marin
Hamilton Field
Comment
GH417655
Grindelia hirsutula var. maritima
J. T. Howell
1945-7-4
21272
Unknown
Inverness Ridge
Comment
POM204017
Grindelia hirsutula var. maritima
J. T. Howell
1933-8-11
11489
San Francisco
Presidio, San Francisco.
Comment
GH37698
Grindelia humilis f. pubescens
J. T. Howell
1932-10-8
10805
Unknown
Upper edge of tidal flat, Cuttings Wharf on Napa River
Comment
SD51276
Grindelia nana
Darley F. Howe
1961-8-3
3178
Siskiyou
26.5 miles east of Highway #99 on Highway 89
Comment
CAS-BOT-BC304683
Grindelia squarrosa
John Thomas Howell
1974-9-20
50907
Plumas
Chilcoot
1554
Comment
GH417722
Grindelia stricta var. angustifolia
J. T. Howell
1933-7-30
11486
Unknown
Bolinas Bay
Comment
SD71025
Grindelia stricta var. angustifolia
John Thomas Howell
1964-12-6
41032
San Mateo
Millbrae, vacant lot near Southern Pacific Railway Station
Comment
POM230322
Grindelia stricta var. stricta
J. T. Howell
1937-7-31
s.n.
Humboldt
Salt marsh bordering Humboldt Bay at Arcata.
Comment
SD113057
Gutierrezia sarothrae
Darley F. Howe
1935-6-9
137
San Diego
Lower Otay Dam
Comment
SBBG92158
Gutierrezia sarothrae
D. F. Howe
1940-9-27
Inyo
29 mi E of US Hwy 395 on St Hwy 168
1340
Comment
HSC1954
Helenium puberulum
J. T. Howell
1938-7-17
13984
Solano
Suisun Mashes at Suisan
Comment
CAS-BOT-BC223906
Helianthemum scoparium
John Thomas Howell
1925-11-28
1603
Solano
Green Creek Canon [Canyon]
Comment
RSA215917
Helianthus annuus subsp. lenticularis
J. T. Howell
1957-9-22
32969
San Francisco
In waste ground, north base of Telegraph Hill, San Francscio.
Comment
CAS-BOT-BC305676
Helianthus gracilentus
John Thomas Howell
1927-7-3
2638
Orange
Claymine Canon [Canyon], n. Santa Ana Mts.
304
Comment
SD37246
Heliomeris multiflora var. nevadensis
Darley F. Howe
1945-9-22
1349
Inyo
Big Pine
Comment
CAS-BOT-BC312141
Hemizonella minima
John Thomas Howell
1951-7-19
27963
Tulare
Monarch Lakes Trail, Mineral King and Vicinity
2590
Comment
CAS-BOT-BC312145
Hemizonella minima
John Thomas Howell; Gordon H. True
1970-6-23
46621
Tulare
Cherry Hill Road in Poison Meadow Creek Canyon, Kern Plateau, Sierra Nevada
1950
Comment
CAS-BOT-BC312149
Hemizonella minima
John Thomas Howell; T. C. Fuller; G. D. Barbe
1980-7-16
53813
Tulare
Sherman Pass Road 4.5 miles east of junction with Cherry Hill Road, Kern Plateau, Sierra Nevada
2255
Comment
SD62035
Hemizonia congesta subsp. clevelandii
Darley F. Howe
1965-8-14
Sonoma
East of Santa Rosa.
120
Comment
SDSU4568
Hemizonia congesta subsp. clevelandii
D. F. Howe
1962-7-28
3361
Sonoma
Mark West Creek, 3.4 miles east of #101.
Comment
JEPS12626
Hemizonia congesta subsp. lutescens
John Thomas Howell
1924-8-31
648
Marin
near Phoenix Lake
Comment
UC473562
Hemizonia congesta subsp. lutescens
John Thomas Howell
1930-7-27
5411
Sonoma
4 mi n Bodega Bay
Comment
CAS-BOT-BC309836
Hemizonia congesta subsp. luzulifolia
John Thomas Howell
1932-9-17
10763
Napa
3 miles west of Napa
Comment
RSA137090
Hemizonia fitchii
J. T. Howell
1955-8-24
30904
Contra Costa
Mt. Diablo near Turtle Rock.
259
Comment
CAS-BOT-BC310183
Hesperevax sparsiflora var. brevifolia
John Thomas Howell
1929-5-25
4227
Mendocino
Mendocino coastal plain at Fort Bragg
15
Comment
CAS-BOT-BC508664
Hesperocallis undulata
John Thomas Howell
1928-3-24
3500
San Diego
Near Palm was, w/Colorado Desert
Comment
SD127798
Heteromeles arbutifolia
Melanie Howe
1988-6-15
32
San Diego
In natural area bordering park at Margerum and Larchwood, San Diego
Comment
CAS-BOT-BC308929
Heterotheca
John Thomas Howell
1958-5-21
33041
Kern
2 miles southwest of Miracle Hot Springs
731
Comment
UCR88744
Heterotheca oregona
J. T. Howell
1959-9-20
34620
Butte
eastern outskirts of Oroville on level of Feather River
61
Comment
CAS-BOT-BC311284
Heterotheca sessiliflora subsp. echioides
John Thomas Howell
1933-8-17
11557
San Benito
Near Hernandez
Comment
SD44975
Heuchera micrantha
Darley F. Howe
1952-6-22
2244
Monterey
Santa Lucia Mts
456
Comment
CAS-BOT-BC420930
Heuchera micrantha var. diversifolia
John Thomas Howell
1944-6-11
10596
Santa Cruz
In redwoods 1.5 miles north of Felton
Comment
RSA0063137
Heuchera micrantha var. hartwegii
J. Wendell Howe
1204
Unknown
Unspecified.
Comment
CAS-BOT-BC424450
Heuchera rubescens
John Thomas Howell
1946-7-14
22243
Inyo
Mosquito Flat, Rock Creek Lake Basin
3139
Comment
CAS-BOT-BC424451
Heuchera rubescens
John Thomas Howell
1947-8-8
23908
Inyo
Second to Third Lake, Big Pine Lakes
3048
Comment
CAS-BOT-BC425295
Heuchera rubescens
John Thomas Howell
1944-8-11
20325
Tuolumne
Lembert Dome, Tuolumne Meadows
Comment
UC701259
Hieracium albiflorum
John Thomas Howell
1939-8-6
15102
Siskiyou
El, Mt. Marble Mts., Elk Mt.
Comment
CAS-BOT-BC318537
Hieracium greenei
John Thomas Howell
1961-6-19
36530
Shasta
Lily Pond Trail near Reflection Lake, Lassen Volcanic National Park
1798
Comment
CAS-BOT-BC318647
Hieracium horridum
John Thomas Howell
1937-7-24
13421
Siskiyou
Caribou Basin, Salmon-Trinity Alps
Comment
CAS-BOT-BC312954
Hieracium triste
John Thomas Howell
1951-7-18
27922
Tulare
Mineral King and vicinity. West side, Franklin Pass
335
Comment
CAS-BOT-BC55365
Hirschfeldia incana
John Thomas Howell
1939-5-14
14687
Marin
Mill Valley station.
Comment
CAS-BOT-BC280693
Holcus lanatus
John Thomas Howell; Barbara T. Menzies; Roberta Shockey
1978-6-29
53180
Calaveras
Snowshoe Spring near Dorrington
1463
Comment
CAS-BOT-BC320135
Holocarpha heermannii
John Thomas Howell
1962-9-26
38944
Kern
2.5 miles east of Glennville, Greenhorn Mountains
1066
Comment
CAS-BOT-BC320247
Holocarpha obconica
John Thomas Howell
1930-9-28
5500
Contra Costa
6.3 miles from Byron on Marsh Creek Road
Comment
SD51265
Holodiscus discolor
Darley F. Howe
1961-8-1
Humboldt
3.3 miles north of Trinidad on #101
Comment
CAS-BOT-BC150018
Holodiscus discolor var. discolor
John Thomas Howell
1951-6-27
s.n.
Plumas
Jamison Creek
1828
Comment
RSA201342
Holodiscus microphyllus var. glabrescens
J. T. Howell
1960-8-19
36198
Shasta
Summit ridge, Brokeoff Mtn.
2805
Comment
CAS-BOT-BC150162
Holodiscus microphyllus var. microphyllus
John Thomas Howell
1940-7-28
15639
Fresno
Near Sphinx Creek, Bubbs Creek
Comment
CAS-BOT-BC388568
Holosteum umbellatum
John Thomas Howell; T. C. Fuller; G. D. Barbe
1980-4-28
53372
Siskiyou
Grenada
792
Comment
CAS-BOT-BC284642
Hordeum brachyantherum subsp. brachyantherum
John Thomas Howell
1943-7-18
18510
Nevada
Willow Valley just west of Castle Peak
Comment
CAS-BOT-BC289305
Hordeum brachyantherum subsp. brachyantherum
John Thomas Howell; Gordon H. True
1970-7-30
47204
Tulare
Along Salmon Creek at north end of Big Meadow, Kern Plateau, Sierra Nevada
2377
Comment
CAS-BOT-BC289309
Hordeum brachyantherum subsp. brachyantherum
John Thomas Howell
1942-7-26
17238
Tulare
Mineral King
Comment
CAS-BOT-BC289506
Hordeum brachyantherum subsp. californicum
John Thomas Howell
1963-6-22
39515
Monterey
Near summit of Mustang Grade east of San Lorenzo Creek
Comment
CAS-BOT-BC284705
Hordeum jubatum
John Thomas Howell
1963-8-20
40128
Kern
South Fork Valley about 2 miles northeast of Weldon
807
Comment
CAS-BOT-BC289583
Hordeum marinum subsp. gussoneanum
John Thomas Howell
1971-3-23
47583
Merced
About 3 miles easterly from Stevison
30
Comment
CAS-BOT-BC284788
Hordeum murinum subsp. glaucum
John Thomas Howell
1958-5-24
33286
Inyo
Whitney Portal road
2346
Comment
CAS-BOT-BC282031
Hordeum murinum subsp. leporinum
John Thomas Howell
1932-3-13
8218
Ventura
San Nicolas Island
Comment
CAS-BOT-BC284900
Hordeum murinum subsp. leporinum
John Thomas Howell
1962-6-2
37410
Merced
Merced
Comment
CAS-BOT-BC273494
Hordeum vulgare
John Thomas Howell
1961-6-21
36680
Plumas
Greenville
1097
Comment
CAS-BOT-BC532310
Horkelia fusca var. parviflora
John Thomas Howell
1963-7-10
39729
Alpine
Sagebrush flat, 0.5 mile west of Monitor Pass; Sierra Nevada
2529
Comment
CAS-BOT-BC537879
Horkelia fusca var. parviflora
John Thomas Howell
1944-8-5
19957
Tuolumne
Near Parsons Lodge, Tuolumne Meadows
Comment
CAS-BOT-BC146325
Horkelia tularensis
John Thomas Howell; T. C. Fuller; G. D. Barbe
1980-7-16
53871
Tulare
Bald Mountain, Kern Plateau
2834
Comment
SDSU4299
Hosackia gracilis
D. F. Howe
1963-5-23
3536
Mendocino
15 miles south of Ft. Bragg on #1.
Comment
SD113625
Hosackia incana
Darley F. Howe
1972-5-4
4822
Mendocino
Ridge Road, 0.5 miles north of Pacific Woods Road, east of Gualala
152
Comment
CAS-BOT-BC315976
Hulsea vestita subsp. vestita
John Thomas Howell
1950-7-13
26761
Tulare
Bakeoven Meadows, South Fork of Kern River, Sierra Nevada
2468
Comment
CAS-BOT-BC400988
Hypericum anagalloides
John Thomas Howell
1939-8-5
15083
Siskiyou
Spirit Lake, Marble Mts.
1828
Comment
CAS-BOT-BC401018
Hypericum anagalloides
John Thomas Howell; Gordon H. True
1970-7-28
47032
Tulare
East side of Big Meadow on loop road south of North Manter Pass Trail. Kern Plateau
2377
Comment
CAS-BOT-BC410205
Hypericum concinnum
John Thomas Howell
1955-6-14
30434
Shasta
east of Whiskeytown
Comment
CAS-BOT-BC401278
Hypericum perforatum
John Thomas Howell
1960-8-20
36242
Tehama
Near Lassen Volcanic National Park. Morgan
1463
Comment
CAS-BOT-BC311340
Hypochaeris glabra
John Thomas Howell
1925-5-23
1086
Merced
Merced River bottom 1 mile ne. of Hopeton Bridge
Comment
CAS-BOT-BC133499
Iris
John Thomas Howell
1960-6-8
35436
Fresno
Near Sequoia Lake
1767
Comment
CAS-BOT-BC324729
Isocoma menziesii var. vernonioides
John Thomas Howell
1927-10-8
3130
Ventura
Point Mugu, Sea level
Comment
CAS-BOT-BC57690
Isoetes bolanderi
John Thomas Howell; Gordon H. True
1969-9-29
46281
Tulare
Upper Dry Lake, east of north end of Long Meadow, Kern Plateau
2392
Comment
UC810503
Isoetes howellii
John Thomas Howell
1937-6-6
13015
Sonoma
Sebastopol
Comment
POM193906
Isopyrum occidentale
J. T. Howell
1930-4-6
4663
Santa Clara
8 miles from summit of Mt. Hamilton on road to San Antonio Valley.
Comment
UC9320
Isopyrum stipitatum
Thos. Howell
April, 1892
18
Siskiyou
Colestein; Siskiyou Mts., Colestein
Comment
CAS-BOT-BC324853
Iva axillaris
John Thomas Howell; Gordon H. True
1967-7-3
42827
Tulare
North of Long Valley on road to Rockhouse Meadow, Kern Plateau, Sierra Nevada
1950
Comment
CAS-BOT-BC142741
Ivesia lycopodioides subsp. lycopodioides
John Thomas Howell
1946-7-22
22663
Fresno
Pioneer Basin
3291
Comment
CAS-BOT-BC142740
Ivesia lycopodioides subsp. lycopodioides
John Thomas Howell
1949-7-25
25740
Tulare
Siberian Pass Creek
3352
Comment
CAS-BOT-BC142842
Ivesia muirii
John Thomas Howell
1947-8-11
23994
Inyo
Baker Lakes
3505
Comment
CAS-BOT-BC143413
Ivesia saxosa
John Thomas Howell; Gordon H. True
1966-7-12
41808
Kern
Just east of Fay Creek Canyon, Kern Plateau
2194
Comment
CAS-BOT-BC340248
Jensia rammii
John Thomas Howell; Barbara T. Menzies; Roberta Shockey
1978-5-17
52955
Calaveras
Between Glencoe and Railroad Flat
914
Comment
CAS-BOT-BC48139
Jepsonia heterandra
John Thomas Howell
1956-12-4
31987
Mariposa
Merced River Canyon, 1.5 miles above Briceburg
Comment
CAS-BOT-BC110038
Juncus acutus
John Thomas Howell
1927-6-30
2623
Los Angeles
1 mile east of Long Beach.
15
Comment
POM304503
Juncus bryoides
J. T. Howell
1941-8-8
16836
Madera
Garnet Creek to San Joaquin Mountain.
Comment
UCD141381
Juncus bufonius
John Thomas Howell
1967-4-30
42151
Tulare
ca. 4.5 miles east-northeast of Pixley. From N1/3 of area.
83
Comment
SEINET8133751
Juncus drummondii
J. T. Howell
1942-1
17371
Unknown
Comment
RSA54101
Juncus ensifolius
J. T. Howell
1946-9-1
22983
El Dorado
Echo Summit.
2256
Comment
UC905100
Juncus hemiendytus var. hemiendytus
John Thomas Howell
1948-7-26
25018
Tulare
Bubbs Creek Canyon
3139
Comment
SD112219
Juncus macrandrus
Darley F. Howe
1946-8-5
1495
San Bernardino
Fawnskin, Bear Valley, San Bernardino Mountains. (IPB 1/08)
Comment
SDSU11807
Juncus mertensianus
D. F. Howe
1959-7-30
2751
Mono
South of Sonora Pass
2933
Comment
RSA40003
Juncus mexicanus
J. T. Howell
1944-8-5
19936
Tuolumne
Soda Springs, Tuolumne Meadows.
Comment
SD53166
Juncus oxymeris
Darley F. Howe
1962-8-14
Fresno
Shaver Lake, Sierra National Forest, by dry stream bed.
1676
Comment
SD37205
Juncus parryi
Darley F. Howe
1941-8-9
Inyo
Mount Whitney Trail from Lone Pine Creek.
3353
Comment
RSA127071
Juncus phaeocephalus var. paniculatus
J. T. Howell
1945-6-24
s.n.
Marin
Lagunitas andeus?, Mt. Tamalpais.
Comment
SD112224
Juncus phaeocephalus var. paniculatus
Darley F. Howe
1937-4-26
465
San Diego
Judson Dam, near National City.
Comment
SD98913
Juncus regelii
Darley F. Howe
1977-6-29
Trinity
Weaver Bally Road.
2042
Comment
UC1026493
Juncus tiehmii
John Thomas Howell
1950-7-15
26927
Tulare
Bakeoven Meadows Sierra Nevada, South Fork of Kern River
2468
Comment
CAS-BOT-BC80972
Juniperus californica
John Thomas Howell
1970-9-24
47382
Kern
0.5 mile south of summit of Bodfish-Havilah road
1097
Comment
CAS-BOT-BC80973
Juniperus californica
John Thomas Howell
1970-9-24
47382
Kern
0.5 mile s. of summit of Bodfish-Havilah road
1097
Comment
CAS-BOT-BC81210
Juniperus occidentalis
John Thomas Howell
1934-6-16
12208 B
Modoc
Parker Creek, Warner Mts.
1584
Comment
RSA8481
Keckiella breviflora
J. T. Howell
1933-8-18
11579
Monterey
7.5 miles east of Jamesburg, Santa Lucia Mountains.
Comment
CAS-BOT-BC238280
Keckiella rothrockii
John Thomas Howell
1950-7-24
27316
Tulare
Ridge s. of Monache Creek
3352
Comment
CAS-BOT-BC238281
Keckiella rothrockii
John Thomas Howell
1950-7-24
27283
Tulare
Monache Creek S. Fk.
2743
Comment
CAS-BOT-BC238285
Keckiella rothrockii
John Thomas Howell
1942-7-31
17431
Tulare
Between Big Arroyo and Chagoopa Plateau
Comment
CAS-BOT-BC246220
Keckiella rothrockii
John Thomas Howell; Gordon H. True
1970-6-24
46677 A
Tulare
North Manter Pass Trail east of Big Meadow, Kern Plateau, Sierra Nevada
2438
Comment
CAS-BOT-BC246221
Keckiella rothrockii
John Thomas Howell; Gordon H. True
1967-8-8
43583
Tulare
About 7 miles from Chimney Meadow on road to Long Valley, Kern Plateau, Sierra Nevada
2103
Comment
UCR139459
Koeleria macrantha
J. T. Howell
1947-8-5
23797
Inyo
Sierra Nevada Mtns., Fifth Lake, Big Pine Lakes
3354
Comment
CAS-BOT-BC271254
Koeleria pyramidata
John Thomas Howell; T. C. Fuller; G. D. Barbe
1980-7-16
53843
Tulare
Paloma Meadows, Kern Plateau, Sierra Nevada
2590
Comment
CAS-BOT-BC273650
Koeleria pyramidata
John Thomas Howell
1949-8-5
26060
Inyo
Army Pass
3657
Comment
CAS-BOT-BC273797
Koeleria pyramidata
John Thomas Howell; Gordon H. True
1970-7-28
46956
Tulare
West side of Big Meadow just south of Pipe Spring. Kern Plateau
2377
Comment
CAS-BOT-BC499178
Kopsiopsis hookeri
John Thomas Howell
1958-5-18
s.n.
Marin
At West Point, Mt. Tamalpais
Comment
UCR66430
Lactuca virosa
J. T. Howell
1943-8-22
19310
Contra Costa
San Francisco Bay Region/Coast Range, near head of San Leandro Creek Canyon
244
Comment Read comments Jul 7 2009
UCD133509
Lactuca virosa
John Thomas Howell
1954-9-8
30108
San Mateo
Skyline Blvd. at San Andreas Lake, 2 miles west of San Bruno.
Comment
CAS-BOT-BC341255
Lagophylla diabolensis
John Thomas Howell
1933-8-17
11545
San Benito
Near Hernandez
Comment
CAS-BOT-BC341425
Lagophylla minor
John Thomas Howell
1939-4-30
14631
Napa
Walter Springs
Comment
SDSU3125
Langloisia setosissima subsp. punctata
D. F. Howe
1958-4-12
2605
San Bernardino
East base of Bristol Mtns., Mojave Desert.
Comment
SD50939
Lappula redowskii
Darley F. Howe
1958-7-29
2666
Mono
8 miles northwest of Bridgeport on # 395
Comment
RSA443
Larrea tridentata
J. T. Howell
1927-6-11
102
San Bernardino
New Hwy S side of Cajon Pass.
823
Comment
UC517469
Lasthenia glabrata subsp. glabrata
John Thomas Howell
1933-4-1
10925
Sonoma
Petaluma
Comment
CAS-BOT-BC366103
Lasthenia minor
J. T. Howell
1933-5-1
11202
San Francisco
Presidio
Comment
CAS-BOT-BC213327
Lathyrus jepsonii subsp. californicus
John Thomas Howell
1956-6-3
31461
San Francisco
Emarcadero and Front Street, San Francisco
Comment
SD56820
Lathyrus littoralis
Darley F. Howe
1963-5-21
3512
Monterey
Monterey Peninsula
Comment
JEPS55328
Lathyrus rigidus
Thos. Howell
Apr 1892
Del Norte
Crescent City
Comment
CAS-BOT-BC169433
Lathyrus sulphureus
John Thomas Howell
1923-7-1
99
Mariposa
Wawona
1219
Comment
CAS-BOT-BC205069
Lathyrus sulphureus
John Thomas Howell; Gordon True; Walter Knight; Irja Knight
1969-6-24
2423
Plumas
Butterfly Botanical Area and Vicinity. Between mouth of Butterfly Creek and Valley proper
914
Comment
RSA7690
Lavatera cretica
J. T. Howell
1953-5-25
11342
San Francisco
The marina
Comment Read comments Jul 29 2013
CAS-BOT-BC323252
Layia chrysanthemoides
John Thomas Howell
1931-4-2
6048
Sonoma
Boyes Springs
Comment
CAS-BOT-BC321101
Layia glandulosa
John Thomas Howell
1958-5-28
33527
Inyo
Bishop Creek
1950
Comment
SD88438
Layia glandulosa
Darley F. Howe
1972-4-21
Santa Barbara
Near entrance to Vandenburg Air Base on Floradane Avenue. North of Lompoc
60
Comment
CAS-BOT-BC374919
Layia pentachaeta subsp. pentachaeta
John Thomas Howell; R. C. Barneby
1954-5-11
40543
Mariposa
Sierra Nevada. 9 miles NW of Raymond
289
Comment
CAS-BOT-BC329335
Layia septentrionalis
John Thomas Howell
1976-4-29
51618
Lake
2.5 miles S of Lakeport
426
Comment
CAS-BOT-BC534656
Lemna minuta
John Thomas Howell
1956-8-26
31806
San Francisco
Pine Lake, San Francisco
Comment
SD88457
Leontodon saxatilis subsp. longirostris
Darley F. Howe
1972-6-30
Humboldt
Trinidad
Comment
CAS-BOT-BC339122
Leontodon saxatilis subsp. saxatilis
John Thomas Howell; Barbara T. Menzies; Roberta Shockey
1978-5-17
52883
Calaveras
Foothills near Wallace
66
Comment
CAS-BOT-BC339132
Leontodon saxatilis subsp. saxatilis
John Thomas Howell
1975-6-2
51049
Merced
Peach orchard near Planada on road to Merced
Comment
CAS-BOT-BC88697
Lepidium acutidens
John Thomas Howell
1933-3-26
10873
Alameda
Livermore Valley near Livermore.
Comment
CAS-BOT-BC89006
Lepidium dictyotum
John Thomas Howell
1929-4-11
4141
Merced
San Joaquin Valley. 7.5 miles southwest of Merced on Los Banos Road.
45
Comment
CAS-BOT-BC89173
Lepidium draba
John Thomas Howell
1926-4-3
1781
Napa
Near Yountville.
Comment
CAS-BOT-BC89379
Lepidium fremontii
John Thomas Howell
1958-5-28
33565
Inyo
Sierra Nevada. Bishop Creek.
1828
Comment
CAS-BOT-BC89410
Lepidium fremontii
John Thomas Howell
1930-5-13
4930
Kern
Red Rock Canyon.
Comment
SD102195
Lepidium fremontii
Darley Howe
1978-5-29
San Bernardino
Near Barstow
640
Comment
CAS-BOT-BC89653
Lepidium lasiocarpum subsp. lasiocarpum
John Thomas Howell
1930-5-13
4940 A
Kern
Red Rock Canyon.
Comment
CAS-BOT-BC89710
Lepidium latifolium
John Thomas Howell
1948-8-10
25285 A
Santa Clara
4 miles north of Madrone.
Comment
CAS-BOT-BC89741
Lepidium latifolium
John Thomas Howell
1966-6-2
41550
Sonoma
South of Schellville near Black Point road.
Comment
CAS-BOT-BC58346
Lepidium montanum subsp. canescens
John Thomas Howell
1934-6-15
12182
Modoc
Alturas.
Comment
RSA88375
Lepidium nitidum
J. T. Howell
1953-5-25
29034
Tuolumne
Twain Harte.
1128
Comment
CAS-BOT-BC12513
Lepidium nitidum
John Thomas Howell
1926-3-20
1687
Napa
Napa Valley. Calistoga.
Comment
CAS-BOT-BC12798
Lepidium perfoliatum
John Thomas Howell
1964-8-10
40913
Alpine
Sierra Nevada. Markleeville.
1676
Comment
CAS-BOT-BC12987
Lepidium virginicum
John Thomas Howell
1974-7-10
50531
Lassen
Sierra Nevada. Elysian Valley.
1325
Comment
CAS-BOT-BC13046
Lepidium virginicum var. menziesii
John Thomas Howell
1960-6-5
35292
Merced
Delhi.
36
Comment
CAS-BOT-BC13085
Lepidium virginicum var. menziesii
John Thomas Howell
1958-5-25
33347
Inyo
Sierra Nevada. Corral on Carroll Creek.
1676
Comment
CAS-BOT-BC60079
Lepidium virginicum var. menziesii
John Thomas Howell
1943-7-21
18679
Nevada
West side of Donner Pass near Norden.
2133
Comment
CAS-BOT-BC273963
Leptochloa fusca subsp. fascicularis
John Thomas Howell
1962-9-21
38682
Kern
Kern River Canyon
426
Comment
UC117239
Lesquerella occidentalis subsp. occidentalis
Thos. Howell
May, 1890
767
Unknown
Klamath City
Comment
CAS-BOT-BC339374
Lessingia glandulifera var. glandulifera
John Thomas Howell
1933-8-17
11531
San Benito
The Pinnacles
Comment
CAS-BOT-BC339393
Lessingia glandulifera var. glandulifera
John Thomas Howell
1928-10-14
4080
San Bernardino
Near Fontana
Comment
JEPS28963
Lessingia glandulifera var. glandulifera
John Thomas Howell
1962-9-25
38930
Kern
s of Kernville Hot Springs; Sierra Nevada
792
Comment
UC421678
Lessingia glandulifera var. glandulifera
John Thomas Howell
1927-8-2
2929
Riverside
top of control on road to Hemet (Mt. San Jacinto); Mt. San Jacinto
Comment
UC990950
Lessingia glandulifera var. glandulifera
D. F. Howe
1946-6-3
San Bernardino
16 mi se Victorville
Comment
POM197811
Lessingia hololeuca
John T. Howell
1926-10-20
2222
Marin
Ridge between Alto and Chapman
Comment
JEPS88692
Lessingia tenuis
John Thomas Howell
1955-7-8
30645
Monterey
Hanging Valley Santa Lucia Mts., Hanging Valley
838
Comment
CAS-BOT-BC342072
Leucanthemum maximum
John Thomas Howell
1956-9-2
31836
San Francisco
San Francisco. Northeast end of Lake Merced
Comment
CAS-BOT-BC233784
Lewisia congdonii
John Thomas Howell
1960-6-6
35318
Fresno
Kings Canyon Road 8 mi. west of Horseshoe Bend, Sierra Nevada
1463
Comment
UCR70870
Lewisia disepala
J. T. Howell
1940-6-1
15573
Mariposa
Between Snow Creek and Mt. Watkins Ridge
Comment
CAS-BOT-BC444079
Lewisia leeana
John Thomas Howell
1937-7-24
13437
Siskiyou
Caribou Basin, Salmon-Trinity Alps
2286
Comment
CAS-BOT-BC444210
Lewisia nevadensis
John Thomas Howell
1948-7-30
25198
Tulare
John Muir Trail west of Center Peak
3200
Comment
CAS-BOT-BC444211
Lewisia nevadensis
John Thomas Howell
1951-7-20
28009
Tulare
Mineral King and Vicinity. Southeast of Farewell Gap
3291
Comment
CAS-BOT-BC444215
Lewisia nevadensis
John Thomas Howell; T. C. Fuller; G. D. Barbe
1980-7-16
53845
Tulare
Paloma Meadows, Kern Plateau
2590
Comment
CAS-BOT-BC444248
Lewisia pygmaea
John Thomas Howell
1946-7-19
22522
Fresno
Fourth Recess
3078
Comment
CAS-BOT-BC444375
Lewisia pygmaea
John Thomas Howell
1944-8-12
s.n.
Tuolumne
Gaylor Lakes
3291
Comment
CAS-BOT-BC444409
Lewisia rediviva
John Thomas Howell
1963-5-6
s.n.
Monterey
Jolon, Santa Lucia Mts.
Comment
CDA32465
Leymus X multiflorus
J. T. Howell
1972-6-25
48900
Solano
Carquinez Strait; Overlooking Carquinez Strait, western part of Benecia
0
Comment
CAS-BOT-BC273580
Leymus californicus
John Thomas Howell
1945-7-15
21299
Marin
Fairfax Hills
Comment
CAS-BOT-BC283781
Leymus cinereus
John Thomas Howell
1944-8-4
19897
Mono
Leavitt Meadow
Comment
CAS-BOT-BC272229
Leymus pacificus
John Thomas Howell
1948-6-6
24335
Marin
Stinson Beach
Comment
CAS-BOT-BC272230
Leymus pacificus
John Thomas Howell
1956-8-26
31816
San Francisco
Near Pine Lake, San Francisco
Comment
CAS-BOT-BC272231
Leymus pacificus
John Thomas Howell
1957-9-1
32927
San Francisco
Sutro Heights above Pt. Lobos, San Francisco
Comment
CAS-BOT-BC272129
Leymus triticoides
John Thomas Howell
1950-7-20
27125
Tulare
Bakeoven Meadows, South Fork of Kern River, Sierra Nevada
2468
Comment
CAS-BOT-BC272130
Leymus triticoides
John Thomas Howell
1958-5-22
33123
Tulare
Kern River Canyon 6 miles south of Roads End P.O., Sierra Nevada
944
Comment
CAS-BOT-BC272131
Leymus triticoides
John Thomas Howell; Gordon H. True
1967-8-7
43491
Tulare
Forest on Beach Creek just north of Beach Meadow, Kern Plateau, Sierra Nevada
2377
Comment
CAS-BOT-BC272135
Leymus triticoides
John Thomas Howell; Gordon H. True
1967-7-3
42859
Tulare
Rockhouse Meadow, Kern Plateau, Sierra Nevada
1706
Comment
UC1106113
Leymus triticoides
John Thomas Howell
1944-5-28
19528
Marin
between Almonte and Mill Valley
Comment
SD112760
Lilium parryi
Darley F. Howe
1948-8-10
1863
San Bernardino
San Bernardino Mtns., south fork of Santa Ana River (IPB 1/07)
2286
Comment
SEINET4411626
Limnanthes bakeri
J. T. Howell
1948-1
1181
Unknown
Comment
CAS-BOT-BC246139
Limosella aquatica
John Thomas Howell
1963-7-10
39748
Alpine
0.5 mile west of Monitor Pass, Sierra Nevada
2529
Comment
UC618377
Linanthus acicularis
John Thomas Howell
1938-5-22
13789
Marin
San Anselmo Canyon
Comment
SD41252
Linanthus californicus
Darley F. Howe
1946-6-3
Orange
Santa Ana Mountains
Comment
SDSU3184
Linanthus dichotomus
D . F. Howe
1962-4-15
3197
Kern
Johannesburg, Kern Co.
1097
Comment
RSA0096832
Linanthus filipes
J. T. Howell
1938-5-3
5345
Madera
19 miles from Coarse Gold on road to Madera.
Comment
UC526130
Linanthus harknessii
John Thomas Howell
1934-6-12
12031
Modoc
Plum Valley Warner Mts.
Comment
RSA51465
Linanthus oblanceolatus
J. T. Howell
1949-8-11
s.n.
Tulare
Rock Creek.
3201
Comment
SD53255
Linanthus parryae
Darley F. Howe
1962-4-19
3210
Kern
11.5 miles south of junction with #395 on #6
1006
Comment
UC517481
Linanthus parviflorus
John Thomas Howell
1933-4-22
11083
San Benito
near San Benito
Comment
SD114237
Linanthus pungens
Darley F. Howe
1941-8-9
1266
Inyo
Lone Pine Creek, Sierra Nevadas
3657
Comment
CAS-BOT-BC111959
Lipocarpha
John Thomas Howell; Gordon H. True
1969-9-29
46287
Tulare
Upper Dry Lake, east of north end of Long Meadow.
2392
Comment
CAS-BOT-BC111968
Lipocarpha micrantha
John Thomas Howell
1930-10-12
5586
El Dorado
River's Edge, North Fork of Cosumnes River, 6.5 miles north of Plymouth.
243
Comment
CAS-BOT-BC428415
Lithophragma tenellum
John Thomas Howell; Gordon H. True; Margaret Williams
1973-5-12
49165
Lassen
Elysian Valley northwest of Janesville.
1325
Comment
CAS-BOT-BC174464
Loeflingia squarrosa
John Thomas Howell
1930-5-10
4802
Riverside
At top of St. John's Grade
Comment
CAS-BOT-BC342212
Logfia filaginoides
John Thomas Howell
1940-5-12
s.n.
Marin
Chianti Country e. of Little Carson
Comment
CAS-BOT-BC283556
Lolium
John Thomas Howell; Gordon H. True
1971-5-26
47619
Placer
N limits of Lincoln
48
Comment
UC1106114
Lolium multiflorum
John Thomas Howell
1939-5-21
Marin
W. Tiburon
Comment
CAS-BOT-BC269066
Lolium perenne
John Thomas Howell
1960-7-18
35567
Plumas
Lassen Volcanic National Park. Drakesbad
1828
Comment
RSA452596
Lomatium marginatum var. purpureum
J. T. Howell
1931-4-19
6466
Napa
Conn Valley (region of type locality)
Comment
SD53271
Lomatium mohavense
Darley F. Howe
1962-8-18
3207
Inyo
28.5 miles north of Littlelake on Highway 395.
1220
Comment
CAS-BOT-BC240452
Lonicera hispidula
John Thomas Howell; T. C. Fuller; G. D. Barbe
1981-6-26
54412
Butte
Madrone Lake near Berry Creek
600
Comment
CAS-BOT-BC243944
Lonicera involucrata var. involucrata
John Thomas Howell
1949-7-24
25675
Tulare
Rock Creek
3291
Comment
UCD137362
Lonicera japonica
John Thomas Howell
1947-5-21
23190
Marin
Tiburon.
Comment
CAS-BOT-BC200897
Lotus
John Thomas Howell
1976-4-1
51523
Butte
Table Mountain, 4 to 5 miles north of Oroville
Comment
RSA218003
Lotus corniculatus
J. T. Howell
1956-7-1
31636
San Francisco
Embarcadero and Front Street.
Comment
CAS-BOT-BC181941
Lotus purshianus var. purshianus
John Thomas Howell
1934-6-30
12295
Modoc
Duncan Horse Camp.
1355
Comment
CDA5218
Ludwigia uruguayensis
J. T. Howell
1945-7-1
21259
Marin
Willow thicket, Tiburon.
0
Comment
CAS-BOT-BC342563
Luina hypoleuca
John Thomas Howell
1939-8-6
15104
Siskiyou
Elk Mt., Marble Mts.
Comment
GH404271
Lupinus
J. T. Howell
1976-4-1
51520
Unknown
Table Mountain, 4-5 miles north of Oroville
152
Comment
CAS-BOT-BC8443
Lupinus adsurgens var. adsurgens
John Thomas Howell
1945-6-21
21193
Lake
Bartlett Mountain: Ruppert Ridge to Bartlett Flat
Comment
UCR88061
Lupinus albicaulis
J. T. Howell, R. C. Barneby
1954-6-12
29515
Mariposa
Sierra Nevada Mtns, Eight mi. from Bagby on Coulterville Road.
515
Comment
CAS-BOT-BC196409
Lupinus arboreus
John Thomas Howell
1930-4-20
4740
Marin
Pt. Reyes
Comment
CAS-BOT-BC182194
Lupinus argenteus
John Thomas Howell
1934-6-15
12183
Modoc
Alturas.
Comment
CAS-BOT-BC196576
Lupinus argenteus var. meionanthus
John Thomas Howell
1943-7-20
18600
Nevada
Castle Peak
Comment
SD113684
Lupinus bicolor
Darley F. Howe
1955-6-12
2492
San Diego
Meadow below Cuyamaca Lake
Comment
SD43600
Lupinus bicolor
Darley F. Howe
1948-5-22
Placer
Placer County
609
Comment
SD43619
Lupinus bicolor
Darley F. Howe
1948-5-22
1862
Nevada
Nevada County
Comment
CAS-BOT-BC196777
Lupinus breweri var. bryoides
John Thomas Howell
1950-7-22
27222
Tulare
Summit ridge, Olancha Peak
3698
Comment
CAS-BOT-BC215448
Lupinus cervinus
John Thomas Howell
1955-5-17
30164
Monterey
N slope of Junipero Serra Peak, Santa Lucia Mountains
1524
Comment
RSA224319
Lupinus chamissonis
J. T. Howell
1957-5-28
32479
San Francisco
West side of Lone Mountain.
Comment
CAS-BOT-BC215101
Lupinus croceus
John Thomas Howell
1937-7-1
13314
Siskiyou
S Fork of Salmon River near Big Flat
1524
Comment
CAS-BOT-BC215200
Lupinus croceus
John Thomas Howell
1937-7-29
13667
Siskiyou
Scott Mountain between Trinity and Siskiyou counties
Comment
CAS-BOT-BC215410
Lupinus dalesiae
John Thomas Howell; Gordon H. True
1967-6-12
42587
Plumas
N side of American Valley near Quincy
1036
Comment
SEINET8136124
Lupinus densiflorus
J. T. Howell
1935-1
12625
Unknown
Comment
POM203629
Lupinus densiflorus var. lacteus
J. T. Howell
1933-4-22
11066
San Benito
Between Paicines and Pinnacles P.O.
Comment
GH369006
Lupinus excubitus var. austromontanus
J. T. Howell
1971-6-15
47855
Unknown
0.3 mile from Lightners Flat on road from Mt. Breckenridge to Havilah
1706
Comment
CAS-BOT-BC205464
Lupinus excubitus var. excubitus
John Thomas Howell; Gordon H. True
1967-5-29
42283
Inyo
1/3 mile east of head of Nine Mile [Ninemile] Canyon
1828
Comment
CAS-BOT-BC216772
Lupinus excubitus var. excubitus
John Thomas Howell
1930-5-13
5015
Kern
5 miles W of summit of Walker Pass
Comment
SDSU4985
Lupinus lapidicola
D. F. Howe
1972-7-4
4869
Siskiyou
Ranger Peak road, stoney hilltop just south of Del Norte, marker near Youngs Valley.
1737
Comment
SD113409
Lupinus latifolius var. parishii
Darley F. Howe
1935-6-16
241
San Diego
Japatul
Comment
SEINET12901015
Lupinus microcarpus
J. T. Howell
1933-1
11004
Unknown
Comment
SD98844
Lupinus microcarpus var. densiflorus
Darley F. Howe
1976-5-20
4897
Ventura
North of Ojai on Hwy 33, 25.6 miles beyond the entrance to Los Padres National Forest. (see note)
1402
Comment Read comments Dec 28 2006
SD113394
Lupinus microcarpus var. microcarpus
Darley F. Howe
1964-4-14
1430
San Diego
Dubber
Comment
UC1177478
Lupinus nanus
John Thomas Howell
1944-6-4
19552
Marin
w Inverness (Inverness Ridge); Inverness Ridge
Comment
SDSU5021
Lupinus nanus
D. F. Howe
1964-5-17
3769
Kern
Caliente.
335
Comment
JEPS33695
Lupinus stiversii
John Thomas Howell
1923-6-7
32
Mariposa
Wawona
1219
Comment
RSA34297
Luzula
J. Wendell Howe
1934-3-10
1268
Unknown
Near Arcata.
Comment Read comments Jun 10 2012
CAS-BOT-BC436573
Luzula cascadensis
John Thomas Howell
1943-8-3
18983
Glenn
Plaskett Meadows
1828
Comment
CAS-BOT-BC441256
Luzula macrantha
John Thomas Howell
1961-6-21
36634
Plumas
Sierra Nevada: Greenville
1097
Comment
CAS-BOT-BC441308
Luzula macrantha
John Thomas Howell
1953-5-25
29036
Tuolumne
Twain Harte
1127
Comment
RSA34917
Machaeranthera canescens
D. F. Howe
1945-9-22
s.n.
Inyo
Pig Pine Inyo County
Comment
CAS-BOT-BC343654
Madia elegans
John Thomas Howell; Gordon H. True
1971-6-17
48106
Kern
Bodfish Grove of Piute cypress, 2.4 mi. e. of Bodfish Gap
1524
Comment
CAS-BOT-BC343740
Madia elegans
John Thomas Howell
1924-7-10
456
Mariposa
Wawona
1219
Comment
CAS-BOT-BC343883
Madia elegans
John Thomas Howell
1929-10-12
4462
San Luis Obispo
Atascadero Creek, 4.3 miles w. of Atascadero
Comment
CAS-BOT-BC343918
Madia elegans
John Thomas Howell
1926-10-9
2221
San Mateo
Between Crystal Spring Lakes and San Mateo
Comment
CAS-BOT-BC344177
Madia elegans
John Thomas Howell; Gordon H. True
1966-7-11
41681
Tulare
Poison Meaow, Kern Plateau
2286
Comment
CAS-BOT-BC344504
Madia exigua
John Thomas Howell
1931-4-13
6358
Santa Barbara
Ravenswood, Santa Cruz Island
Comment
CAS-BOT-BC343035
Madia gracilis
John Thomas Howell
1962-7-10
38474
Kern
Shirley Meadows, Greenhorn Mountains
2011
Comment
CAS-BOT-BC343499
Madia gracilis
John Thomas Howell
1962-5-22
37304
Tulare
Kern River Canyon above Roads End
1097
Comment
CAS-BOT-BC343562
Madia gracilis
John Thomas Howell; T. C. Fuller; G. D. Barbe
1981-6-22
54070
Yuba
1.4 miles southwest of Bullards Bar Dam on road to Challenge
609
Comment
UC517457
Madia gracilis
John Thomas Howell
1933-5-14
11266
Contra Costa
hills e St. Mary's College
Comment
SDSU4746
Madia sativa
D. F. Howe
1962-7-30
3372
Mendocino
1.8 miles north of Pt. Arena on #1.
Comment
CAS-BOT-BC345160
Madia sativa
John Thomas Howell
1931-5-25
6548
Santa Barbara
Mission Ridge, Santa Barbara
Comment
CAS-BOT-BC345258
Madia sativa
John Thomas Howell
1932-9-18
10765
Sonoma
South base of Mt. Hood on Sonoma Creek
Comment
POM225355
Madia sativa
J. T. Howell
1932-9-18
10765
Sonoma
South base of Mt. Hood, on Sonoma Creek
Comment
POM204106
Maianthemum racemosum subsp. amplexicaule
J. T. Howell
1934-6-11
11954
Modoc
Parker Creek, Warner Mts.
1585
Comment
CAS-BOT-BC512872
Maianthemum stellatum
John Thomas Howell
1944-8-9
20189
Tuolumne
Near Parsons Lodge, Tuolumne Meadows
Comment
CAS-BOT-BC204043
Malacothamnus fremontii
John Thomas Howell
1971-6-25
48114
Stanislaus
On Interstate Hwy. 5 at Black Gulch Creek, 2.5 miles west of Patterson
Comment
CAS-BOT-BC204117
Malacothamnus hallii
John Thomas Howell; Thos. H. Kearney
1950-8-27
27424
Santa Clara
Pacheco Pass road 4 miles west of summit
Comment
UC1347194
Malacothamnus hallii
John Thomas Howell
1937-7-5
13098
Santa Clara
in hills e Coyote; Metalf Road
Comment
RSA43315
Malacothamnus niveus
J. T. Howell
1948-6-15
s.n.
San Luis Obispo
Gillis Canyon, SE of Shandon
457
Comment
GH404940
Malacothamnus orbiculatus
J. T. Howell & T. H. Kearney
1950-8-29
27434
Unknown
Along road from Independence to Onion Valley
2133
Comment
RSA0005492
Malacothamnus palmeri var. lucianus
J. T. Howell
1955-7-8
30642
Monterey
Arroyo Seco Road, 3 miles from Escondido Camp, Santa Lucia Mountains.
793
Comment
CAS-BOT-BC345438
Malacothrix clevelandii
John Thomas Howell
1953-6-14
29071
Monterey
Hastings Reservation, Santa Lucia Mts.
Comment
CAS-BOT-BC347523
Malacothrix floccifera
John Thomas Howell
1977-6-21
52382
Plumas
Seneca
1097
Comment
POM203303
Malacothrix floccifera
J. T. Howell
1931-4-19
6461
Napa
Conn Valley.
Comment
SD112634
Malacothrix glabrata
Darley F. Howe
1948-5-3
1794
Kern
i mile north of Rosamond
669
Comment Read comments Mar 17 2014
SBBG30045
Malva nicaeensis
J. T. Howell
1946-5-16
21900
San Francisco
Van Ness Avenue at Fort Mason, San Francisco
Comment
RSA88563
Malva parviflora
J. T. Howell
1951-6-27
27555
Plumas
Johnsville.
1585
Comment
UCD116690
Malva pseudolavatera
John Thomas Howell
1962-4-25
37095
San Joaquin
Vacant lots, Tracy.
Comment
SEINET6166089
Marsilea vestita subsp. vestita
J. T. Howell
1962-9-21
38683
Kern
Sierra Nevada, Kern River Canyon
427
Comment
CAS-BOT-BC348244
Matricaria discoidea
John Thomas Howell; Gordon H. True
1970-7-30
47148
Tulare
Southwest end of Big Meadow just east of Cherry Hill Road. Kern Plateau
2377
Comment
CAS-BOT-BC422661
Meconella californica
John Thomas Howell
1946-4-14
21623
Marin
Near Tomales
Comment
CDA4231
Medicago praecox
T. Howell
1954-5-2
29188
Tehama
Near Red Bluff.
0
Comment
CAS-BOT-BC271146
Melica aristata
John Thomas Howell
1958-7-22
33716
Fresno
Simpson Meadow, Middle Fork of Kings River, Sierra Nevada
1828
Comment
CAS-BOT-BC269322
Melica bulbosa
John Thomas Howell
1948-7-26
25017
Tulare
Bubbs Creek Canyon
3139
Comment
CAS-BOT-BC271094
Melica bulbosa
John Thomas Howell; Gordon H. True
1970-7-15
5575
Nevada
Carpenter Ridge, Sagehen Creek drainage, ca. 7.5 miles west of Truckee - Sierraville Highway
2621
Comment
CAS-BOT-BC282073
Melica fugax
John Thomas Howell
1937-7-21
13155
Siskiyou
S Fork of Salmon River near Big Flat
1524
Comment
CAS-BOT-BC282102
Melica fugax
John Thomas Howell
1975-6-16
51154
Plumas
2 miles NW of Spring Garden
1173
Comment
RSA201315
Melica fugax
J. T. Howell
1960-7-18
35603
Plumas
Drakesbad. Lassen Volcanic National Park.
1677
Comment
CAS-BOT-BC282146
Melica geyeri
John Thomas Howell
1947-5-18
23185
Marin
Lagunitas Meadows at foot of Berry Trail
Comment
CAS-BOT-BC7405
Melica geyeri var. aristulata
John Thomas Howell
1943-4-11
17906
Marin
San Rafael Hills, Black Canyon
Comment
CAS-BOT-BC281450
Melica imperfecta
John Thomas Howell; Gordon H. True
1969-5-13
45686
Kern
Spanish Needle Creek road to Lamont Meadow
1463
Comment
CAS-BOT-BC281451
Melica imperfecta
John Thomas Howell; Gordon H. True
1969-5-13
45650
Kern
Spanish Needle Creek road to Lamont Meadow
1280
Comment
CAS-BOT-BC281147
Melica stricta
John Thomas Howell
1951-7-17
17864
Tulare
Mineral King and Vicinity. White Chief Trail
2895
Comment
UCD88307
Melica stricta
John Thomas Howell
1943-7-15
18373
Nevada
West side of Donner Pass near Norden.
2133
Comment
SEINET10599625
Melica stricta
John Thomas Howell
1958-5-23
Howell 33222
Inyo
Alabama Hills.
1463
Comment
RSA400
Melilotus indicus
J. T. Howell
1927-7-18
429
Orange
Santa Ana River bottom, Rancho Santa Ana.
152
Comment
SD112196
Melinis repens subsp. repens
Darley F. Howe
1950-8-27
2050
San Diego
Below Murray Dam
Comment
POM225314
Melissa officinalis
J. T. Howell
1932-9-18
10771
Sonoma
Bed of slough draining Kenwood Marsh.
Comment
POM204456
Mentzelia affinis
J. T. Howell
1933-4-22
11067
San Benito
Between Paicines and Pinnacles P.O.
Comment
UC1177454
Mentzelia laevicaulis var. laevicaulis
John Thomas Howell
1945-9-16
21488
Marin
n San Rafael (along railroad)
Comment
CAS-BOT-BC179122
Mentzelia montana
John Thomas Howell
1934-6-30
12263
Modoc
Duncan Horse Camp.
1355
Comment
SD129881
Mentzelia oreophila
Melanie Howe, David K. Faulkner
1990-6-13
88
Inyo
Surprise Canyon
900
Comment
SD81267
Mentzelia tricuspis
Darley F. Howe
1969-4-12
4569
San Bernardino
13 miles east of Goffs.
427
Comment
CAS-BOT-BC170841
Mentzelia veatchiana
John Thomas Howell; Alice Eastwood
1940-6-11
8002
Lassen
Big Valley
Comment
CAS-BOT-BC170840
Mentzelia veatchiana
John Thomas Howell
1960-6-6
35364
Fresno
Kings Canyon 5.5 mi. w. of Cedar Grove - Sierra Nevada
1097
Comment
SD114154
Mentzelia veatchiana
Darley F. Howe
1961-4-26
3017
Inyo
3.0 miles east of west entrance to Inyo National Forest on Westgard Pass Road.
1981
Comment
CAS-BOT-BC429118
Micranthes odontoloma
John Thomas Howell
1947-8-5
23762
Inyo
Fifth Lake, Big Pine Lakes
3352
Comment
CAS-BOT-BC429240
Micranthes oregana
John Thomas Howell
1960-7-23
35963
Plumas
Lassen Volcanic National Park. Dream Lake, Drakesbad
1828
Comment
CAS-BOT-BC429241
Micranthes oregana
John Thomas Howell
1967-6-23
42714
Plumas
Butterfly Valley
1066
Comment
CAS-BOT-BC322598
Micropus amphibolus
John Thomas Howell
1965-3-25
41033
Sonoma
3 miles southeast of Sonoma
76
Comment
RSA201428
Micropus amphibolus
J. T. Howell
1965-3-25
s.n.
Sonoma
3 miles southeast of Sonoma
76
Comment
CAS-BOT-BC348750
Microseris bigelovii
J. T. Howell
1946-6-2
s.n.
Marin
Potrero Meadow, Mt. Tamalpais
Comment
CAS-BOT-BC348751
Microseris bigelovii
J. T. Howell
1946-5-19
21910
Marin
Meadows Club, Fairfax Hills
Comment
CAS-BOT-BC348787
Microseris campestris
John Thomas Howell
1926-4-10
1800 A
Alameda
Arroyo Mocho 8 miles from Livermore
Comment
CAS-BOT-BC348823
Microseris campestris
John Thomas Howell
1967-11-3
44030 A
Tulare
About 4.5 miles east-northeast of Pixley
83
Comment
CAS-BOT-BC348959
Microseris douglasii subsp. douglasii
John Thomas Howell
1963-6-22
39544
Monterey
Priest Valley
685
Comment
CAS-BOT-BC348968
Microseris douglasii subsp. douglasii
John Thomas Howell
1931-4-19
6449
Napa
Conn Valley
Comment
CAS-BOT-BC349171
Microseris elegans
John Thomas Howell
1954-5-17
29708
El Dorado
1 mile southwest of Garden Valley
609
Comment
CAS-BOT-BC349271
Microseris nutans
John Thomas Howell
1925-7-2
1322
El Dorado
Trail to Desolation Valley above Glen Alpine, Lake Tahoe region
Comment
GH365928
Mimulus aurantiacus
T. J. Howell
1884-05-01 - 1884-06-01
Unknown
Smith River
Comment
RSA118023
Mimulus aurantiacus var. grandiflorus
J. T. Howell
1955-5-18
30180
Monterey
West of saddle between Junipero Serra and pinyon peaks.
1433
Comment
RSA88391
Mimulus nanus var. mephiticus
J. T. Howell
1951-6-29
27753
Plumas
Feather River Canyon
549
Comment
RSA1317
Mimulus pilosus
J. T. Howell
1928-7-9
1071
Riverside
Head of San Juan Canyon. Elsinore Mountains
793
Comment
JEPS28121
Mimulus suksdorfii
John Thomas Howell
1962-6-19
37870
Plumas
5.8 mi e Beckwourth; Sierra Nevada
1493
Comment
CAS-BOT-BC388680
Minuartia douglasii
John Thomas Howell
1939-5-14
s.n.
Marin
Near Collier Spring, Mt. Tamalpais
Comment
CAS-BOT-BC388681
Minuartia douglasii
John Thomas Howell
1940-5-26
15529
Marin
Little Carson Falls
Comment
CAS-BOT-BC388924
Minuartia douglasii
John Thomas Howell
1954-6-6
29977
Tuolumne
Twain Harte
1127
Comment
CAS-BOT-BC181578
Minuartia nuttallii var. gracilis
John Thomas Howell; Alice Eastwood
1939-7-20
7555
Mono
Sonora Pass
Comment
CAS-BOT-BC181602
Minuartia nuttallii var. gracilis
John Thomas Howell
1958-8-1
34157
Fresno
Ridge north of Dougherty Meadow - Sierra Nevada
3048
Comment
CAS-BOT-BC384016
Mirabilis jalapa
John Thomas Howell
1956-7-15
31688
San Francisco
San Francisco. Waterfront Street near Mission Rock Terminal
Comment
CAS-BOT-BC220072
Monardella breweri subsp. lanceolata
John Thomas Howell; T. C. Fuller; G. D. Barbe
1980-7-15
53759
Tulare
Upper part of Brush Creek Canyon on Cherry Hill Road, Kern Plateau
1767
Comment
CAS-BOT-BC221679
Monardella douglasii
John Thomas Howell
1942-7-19
17049
Contra Costa
NE. of Deer Flat, Mt. Diablo
Comment
CAS-BOT-BC220112
Monardella exilis
John Thomas Howell; Gordon H. True
1969-5-13
45716
Kern
7 miles east of Onyx on Walker Pass highway
1021
Comment
CAS-BOT-BC220124
Monardella exilis
John Thomas Howell; Gordon H. True
1969-5-13
45716
Kern
7 miles east of Onyx on Walker Pass highway
1021
Comment
SD113345
Monardella hypoleuca subsp. lanata
Darley F. Howe
1954-7-18
2421
San Diego
East base of Mt. Woodson.
Comment
UCR143079
Monardella linoides subsp. sierrae
J. T. Howell
1947-8-16
24150
Inyo
Sierra Nevada Mtns., Big Pine Lakes Trail
2744
Comment
RSA0005496
Monardella linoides subsp. sierrae
J. T. Howell
1947-8-16
24150
Inyo
Big Pine Lakes Trail.
2622
Comment
SDSU7223
Monardella nana
D. F. Howe
1963-7-13
3635
Fresno
Comment
CAS-BOT-BC213929
Monardella odoratissima subsp. pallida
John Thomas Howell
1970-9-23
47344
Kern
Near Tiger Flat, east side of Sunday Peak, Greenhorn Mountains, Sierra Nevada
1981
Comment
CAS-BOT-BC220402
Monardella purpurea
John Thomas Howell
1946-8-11
22847
Marin
Between Mt. Theater & Barths Retreat, Mt. Tamalpais
Comment
SD56725
Monardella sinuata subsp. sinuata
Darley F. Howe
1963-6-29
3562
Santa Barbara
1.3 miles from Highway 1 on Vandenberg Air Base Road.
91
Comment
SD98840
Monardella sinuata subsp. sinuata
Darley F. Howe
1976-6-2
4924
Ventura
On Las Posas Road, 0.5 mile north of Santa Rosa Valley Blvd.
213
Comment Read comments May 5 2015
POM180780
Monardella villosa subsp. villosa
J. T. Howell
1930-7-13
5349
Napa
On the edge of the Crater Country
Comment
CAS-BOT-BC220691
Monardella viridis
John Thomas Howell
1930-7-13
5360
Napa
On the edge of the Crater Country
Comment
CAS-BOT-BC220695
Monardella viridis
John Thomas Howell
1937-7-4
13060
Napa
Wooden Valley Grade
Comment
CDA23451
Monolepis spathulata
J. T. Howell, G. H. True
1967-9-19
43893
Tulare
Kern Plateau, Sierra Nevada; Flood-plain of Kern River South Fork, Kennedy Meadows Campground.
Comment
UC710559
Monolepis spathulata
John Thomas Howell
1944-8-9
20191
Tuolumne
near Parson's Lodge (Tuolumne Meadows); Tuolumne Meadows
Comment
CAS-BOT-BC444692
Montia chamissoi
John Thomas Howell
1934-6-14
s.n.
Lassen
Near Lost Lake, Warner Mts.
2438
Comment
CAS-BOT-BC444777
Montia chamissoi
John Thomas Howell
1950-7-15
26911
Tulare
Bakeoven Meadows, South Fork of Kern River
2468
Comment
CAS-BOT-BC260598
Muhlenbergia filiformis
John Thomas Howell; Gordon H. True; Margaret Williams
1973-6-28
49495
Lassen
Elysian Valley, W of Janesville
1325
Comment
CAS-BOT-BC267006
Muhlenbergia filiformis
John Thomas Howell
1959-9-22
34869
Plumas
Drakesbad
1737
Comment
SEINET196539
Muhlenbergia filiformis
John T. Howell
1949-7-23
25665
Tulare
Rock Creek
3200
Comment
UCD86661
Muhlenbergia filiformis
John Thomas Howell
1960-7-18
35581
Plumas
Lassen Volcanic National Park. Drakesbad.
1676
Comment
CAS-BOT-BC275282
Muhlenbergia microsperma
John Thomas Howell
1928-2-9
3339
Los Angeles
On trail between Sierra Madre and Santa Anita Canon, San Gabriel Mountains
Comment
CAS-BOT-BC275182
Muhlenbergia montana
John Thomas Howell
1937-7-25
13442
Siskiyou
Caribou Basin, Salmon-Trinity Alps
2286
Comment
CAS-BOT-BC274953
Muhlenbergia richardsonis
John Thomas Howell
1940-8-2
15882
Tulare
Slope N of Reflection Lake
3352
Comment
CAS-BOT-BC274894
Muhlenbergia rigens
John Thomas Howell
1962-5-22
37340
Tulare
Johnsondale
1423
Comment
CAS-BOT-BC392274
Myosurus apetalus
John Thomas Howell
1950-7-15
26917
Tulare
Bakeoven Meadows, South Fork of Kern River
2468
Comment
UCD96306
Myosurus minimus
John Thomas Howell
1971-3-23
47585
Merced
northeast of Gustine on road to Merced.
30
Comment
SEINET199915
Nassella lepida
John Thomas Howell
1945-5-27
20881
Marin
East of Mountain Thetre Mt. Tamalpais
Comment
CAS-BOT-BC260122
Nassella pulchra
John Thomas Howell
1944-4-30
19418
Alameda
Oakland Hills above Mills College
Comment
CAS-BOT-BC260166
Nassella pulchra
John Thomas Howell
1938-5-22
13794
Marin
San Anselmo Canyon
Comment
GH361642
Nassella pulchra
J. T. Howell
1946-5-16
21849
Unknown
Southeast side, Angel Island
Comment
UC1106100
Nassella pulchra
John Thomas Howell
1946-5-16
21849
Marin
se side Angel Island
Comment
CAS-BOT-BC198016
Navarretia breweri
John Thomas Howell
1934-6-12
11988
Modoc
9 mi. S of Davis Creek.
Comment
UC1332135
Navarretia divaricata
John Thomas Howell
1937-7-27
13572
Siskiyou
near Big Flat; Salmon River
1524
Comment
SD75823
Navarretia intertexta subsp. propinqua
Darley F. Howe
1969-8-4
4659
Mono
Sonora Pass Road, east of divide
2438
Comment
CAS-BOT-BC232659
Navarretia pubescens
John Thomas Howell
1931-6-8
6676
Mariposa
5 miles from Mariposa on road to Briceburg
Comment
CAS-BOT-BC232744
Navarretia sinistra subsp. pinnatisecta
John Thomas Howell
1937-7-30
13697
Trinity
7 miles from Trinity Center on road to Minersville
Comment
CAS-BOT-BC230582
Nemophila parviflora var. quercifolia
John Thomas Howell; Gordon H. True
1971-6-15
47844
Kern
1 mile from Lightners Flat on road from Mount Breckenridge to Havilah
1676
Comment
SD113480
Nemophila pedunculata
Darley F. Howe
1948-5-22
Nevada
Comment
SD60979
Nemophila pulchella var. gracilis
Darley F. Howe
1964-5-19
3788
Fresno
Entrance to Sierra National forest on Highway 168.
762
Comment
CAS-BOT-BC71176
Notholaena standleyi
John Thomas Howell
1927-11-25
3228
San Diego
n. Borrego Valley, w. Colorado Desert
304
Comment
SDSU655
Nuphar lutea subsp. polysepala
D. F. Howe
1972-6-27
4840
Sonoma
Duncan Mills Pond
Comment
SD114118
Oenothera californica subsp. avita
Darley F. Howe
1941-6-19
1127
San Diego
Jacumba
Comment
RSA28224
Oreobolopsis clementis
J. T. Howell
1951-7-21
28080
Tulare
White Chief region; Mineral King and vicinity.
3049
Comment
RSA44392
Oreobolopsis clementis
J. T. Howell
1938-8-13
14572
Mariposa
Snow Flat
Comment
RSA458962
Oreonana clementis
J. T. Howell
1948-7-20
24795
Fresno
Mt. Gould. Fresno-Inyo County line.
3659
Comment
UC702999
Oreostemma alpigenum var. andersonii
J. Thomas Howell
1941-8-1
16653
Madera
near Garnet Lake
2956
Comment
CAS-BOT-BC327729
Oreostemma elatum
John Thomas Howell
1924-8-19
618
Plumas
Butterfly Valley near Quincy
Comment
CAS-BOT-BC327730
Oreostemma peirsonii
John Thomas Howell
1948-7-28
25124
Tulare
Center Basin
3657
Comment
CAS-BOT-BC327731
Oreostemma peirsonii
John Thomas Howell
1948-7-26
25063
Tulare
Center Basin
3413
Comment
CAS-BOT-BC327735
Oreostemma peirsonii
John Thomas Howell
1949-7-20
25529
Tulare
Rock Creek
3291
Comment
CAS-BOT-BC499731
Orobanche californica subsp. feudgei
John Thomas Howell
1976-5-18
51750
Kern
Sierra Nevada, Greenhorn Mountains. 5.5 mi from Wofford, along old road from Alta Sierra to Wofford Heights
Comment
CAS-BOT-BC499866
Orobanche fasciculata
John Thomas Howell
1958-5-25
33363
Inyo
Sierra Nevada: Carroll Creek
1676
Comment
CAS-BOT-BC499925
Orobanche fasciculata
John Thomas Howell; R. C. Barneby
1954-5-12
29503
Mariposa
Sierra Nevada: near top of Bagby Grade
579
Comment
CAS-BOT-BC500251
Orobanche uniflora subsp. occidentalis
John Thomas Howell
1940-4-21
15401
Contra Costa
Pine Canyon, Mt. Diablo
Comment
CAS-BOT-BC500255
Orobanche uniflora subsp. occidentalis
John Thomas Howell
1925-7-6
1393
El Dorado
Trail to top of Mt. Tallac, Lake Tahoe Region
Comment
CAS-BOT-BC500259
Orobanche uniflora subsp. occidentalis
John Thomas Howell; R. C. Barneby
1954-5-10
29367
Fresno
Sierra Nevada, between Mountain Lakes and Auberry
1066
Comment
CAS-BOT-BC355727
Orochaenactis thysanocarpha
John Thomas Howell
1950-7-18
27063
Tulare
Bakeoven Meadows
2468
Comment
UC643406
Oxypolis occidentalis
John Thomas Howell
1940-7-28
15660
Fresno
near Charlotte Creek; Bubbs Creek
Comment
SD77846
Oxystylis lutea
Darley F. Howe
1970-8-23
Inyo
Tecopa Hot Springs.
399
Comment
UC1042585
Oxytheca dendroidea subsp. dendroidea
John Thomas Howell
1950-7-27
27407
Mono
2.5 mi n Bridgeport; Sierra Nevada
1965
Comment
RSA190
Oxytheca trilobata
J. T. Howell
1927-8-7
619
San Diego
Between Campo and Buckman Springs.
915
Comment
SD88441
Packera bolanderi
Darley F. Howe
1972-5-8
4833
Del Norte
2.8 miles north of Crescent City
Comment
SDSU472
Packera cana
D. F. Howe
1971-8-25
4776
Inyo
Near South Lake, Inyo National Forest west of Bishop.
3048
Comment
CAS-BOT-BC316893
Packera eurycephala var. lewisrosei
John Thomas Howell
1955-6-15
30507
Butte
West branch of North Fork of Feather river
182
Comment
SDSU503
Packera multilobata
D. F. Howe
1978-6-2
5030
San Bernardino
New York Mts.
1554
Comment
CAS-BOT-BC121004
Paeonia brownii
J. T. Howell
1962-6-19
37849
Plumas
The Buttes, near Sierra Valley.
1493
Comment
SD128761
Palafoxia arida var. arida
Darley F. Howe
1980-4-13
Imperial
9 miles east of Holtville on Highway 8
Comment
CAS-BOT-BC253748
Panicum capillare
John Thomas Howell; et al.
1967-7-10
2191
Plumas
Butterfly Botanical Area and Vicinity. Mouth of Butterfly Creek
883
Comment
CAS-BOT-BC253895
Panicum rigidulum
John Thomas Howell
1961-9-22
36714
Butte
Bank of Feather River, Oroville
53
Comment
CDA2143
Panicum rigidulum
J. T. Howell
1961-9-22
36714
Butte
Bank of Feather River, Oroville.
Comment
CAS-BOT-BC253899
Panicum urvilleanum
John Thomas Howell
1928-3-11
3442
Riverside
6 miles SE of Garnet Station, Coachella Valley, Colorado Desert
152
Comment
RSA32280
Papaver californicum
J. T. Howell
1946-5-30
21962
Marin
Little Carson Canyon.
Comment
POM230334
Parentucellia viscosa
J. T. Howell
1937-7-31
13719
Humboldt
3 miles west of Korbel,
Comment
CAS-BOT-BC413446
Parietaria judaica
John Thomas Howell
1973-4-19
49144
Monterey
Pacific Grove
Comment
CAS-BOT-BC413454
Parietaria judaica
John Thomas Howell
1977-4-4
52362
Alameda
Shattuck Ave., Berkeley
Comment
CAS-BOT-BC175628
Parnassia palustris
John Thomas Howell
1940-7-31
15778
Tulare
East Lake
2926
Comment
RSA127247
Paspalum dilatatum
J. T. Howell
1945-8-5
21364
Marin
McKinnan's Landing near Stinson Beach
Comment
JEPS22383
Pectocarya penicillata
John Thomas Howell
1928-3-20
3460
Los Angeles
Vermont Canyon, Griffith Park
Comment
SD114708
Pectocarya recurvata
Darley F. Howe
1939-4-15
638
San Diego
Yaqui Pass
Comment
CAS-BOT-BC266631
Pedicularis
John Thomas Howell; T. C. Fuller; G. D. Barbe
1981-6-24
54240
Plumas
About 3 miles SE of Mount Hough on the road to Quincy
1737
Comment
SDSU10866
Pedicularis semibarbata
D. F. Howe
1947-6-23
1625
San Bernardino
Furnace Creek N of Holcomb Valley, San Bernardino Mtns.
Comment
CAS-BOT-BC67733
Pellaea andromedifolia
John Thomas Howell
1956-12-4
31996
Mariposa
Sierra Nevada - Merced River Canyon, 2.6 miles above Briceburg
Comment
HSC1060
Pellaea andromedifolia
J. Wendell Howe
1930-3-30
Alameda
Oakland Hills
Comment
RSA30137
Pellaea breweri
J. T. Howell
1951-7-21
28063
Tulare
Marble, White Chief region; Mineral King and Vicinity.
2896
Comment
CAS-BOT-BC71508
Pellaea mucronata var. californica
John Thomas Howell
1964-10-23
40982
Inyo
Whitney Portal Road
2346
Comment
NY572626
Penstemon caesius
J. T. Howell
1958-7-21
33709
Fresno
"Repack Flat", on trail from Dougherty Meadow to Simpson Meadow.
2286.0
Comment
SD113662
Penstemon centranthifolius
Darley F. Howe
April
51
Unknown
Claremont
Comment Read comments Jun 26 2012
NY590166
Penstemon davidsonii var. davidsonii
J. T. Howell
1940-8-1
16054
Tulare
Between Reflection Lake and Harrison Pass.
Comment
SDSU10936
Penstemon deustus var. pedicellatus
D. F. Howe
1964-8-4
3932
Siskiyou
Probably Modoc or Shasta National Forest, 9 miles from entrance to Lava Bed National Monument.
2042
Comment
NY600736
Penstemon gracilentus
J. T. Howell
1970-7-14
5559
Sierra
Verdi Peak Road, ca. 3 miles from intersection with Dog Valley-Stampede Dam Road.
2347.0
Comment
POM304499
Penstemon heterodoxus var. cephalophorus
J. T. Howell
1942-8-5
17725
Tulare
Kaweah Meadows, Chagoopa Plateau.
Comment
CAS-BOT-BC239115
Penstemon incertus
John Thomas Howell; Gordon H. True
1967-5-30
42420
Inyo
Ninemile Canyon
1432
Comment
CAS-BOT-BC239119
Penstemon incertus
John Thomas Howell
1950-7-12
26655
Inyo
Sage Flat to Olancha Pass
2133
Comment
RSA299181
Penstemon laetus
J. T. Howell
1976-5-19
51764
Kern
Digger pine-Douglas oak woodland between Isabella Dam and Keysville. Greenhorn Mts.
823
Comment
CAS-BOT-BC239400
Penstemon newberryi var. berryi
John Thomas Howell
1940-8-1
15798
Tulare
Between Reflection Lake and Harrison Pass
Comment
CAS-BOT-BC239401
Penstemon newberryi var. berryi
John Thomas Howell
1940-8-1
15798
Tulare
Between Reflection Lake and Harrison Pass
Comment
POM203064B
Penstemon roezlii
J. T. Howell
1934-6-30
12269
Modoc
Duncan Horse Camp.
Comment
SDSU10980
Penstemon speciosus
D. F. Howe
1958-7-29
2674
Mono
10 miles W of #395 on Sonora Pass Road.
2743
Comment
CAS-BOT-BC71714
Pentagramma triangularis subsp. triangularis
John Thomas Howell
1956-5-6
31333
San Francisco
Sierra & 22nd streets, San Francisco
Comment
CAS-BOT-BC15714
Perideridia oregana
John Thomas Howell
1934-6-30
12287
Modoc
Duncan Horse Camp.
1355
Comment
CAS-BOT-BC222777
Perideridia parishii
John Thomas Howell; Gordon H. True
1970-7-30
47208
Tulare
Along Salmon Creek at north end of Big Meadow. Kern Plateau
2377
Comment
CAS-BOT-BC222782
Perideridia parishii
John Thomas Howell
1969-8-26
45967
Tulare
Mineral King
2377
Comment
CAS-BOT-BC413690
Persicaria hydropiper
John Thomas Howell
1954-9-6
30086
Calaveras
3 miles se. of Angels Camp
Comment
CAS-BOT-BC413785
Persicaria lapathifolia
John Thomas Howell
1931-9-29
8124
San Francisco
Mountain Lake, Presidio, San Francisco
Comment
SEINET5536761
Phacelia brachyloba
J. T. Howell
1930-5-10
4818
San Diego
10 miles north of Warners Hot Springs
Comment
RSA26544
Phacelia californica
J. T. Howell
1930-7-20
5384
Marin
Rocky slope of Mt. Tamalpais on south-east side.
Comment
RSA26566
Phacelia californica
J. T. Howell
1930-7-27
5403
Sonoma
One mile north of Fort Ross.
Comment
RSA74163
Phacelia ciliata
J. T. Howell
1929-4-25
4202
Merced
Two miles northeast of Planada.
Comment
POM399066
Phacelia divaricata var. congdonii
J. T. Howell
1930-5-14
5101
Kern
West slope of Greenhorn Range on road from Kernville to Glenville
1372
Comment
CDA40421
Phacelia hastata var. compacta
J. T. Howell
1941-7-31
16590
Madera
Agnew Pass.
0
Comment
SBBG64997
Phacelia insularis var. continentis
J. T. Howell
1930-4-20
4732
Marin
Point Reyes
Comment
CAS-BOT-BC145043
Phacelia keckii
John Thomas Howell
1931-5-30
6611
Riverside
Santiago Peak, Santa Ana Mts.
1219
Comment
POM203927
Phacelia malvifolia
J. T. Howell
1931-5-21
6487
Monterey
Gibson Canyon, Carmel Highlands.
Comment
POM298991
Phacelia nemoralis subsp. nemoralis
J. T. Howell
1930-6-15
5299
Alameda
Rocky summit of Little Grizzley, Berkeley Hills
Comment
RSA596116
Phacelia novenmillensis
J. T. Howell, Gordon H. True
1971-7-13
48371
Kern
Southwest of Pine flat on rim of Kern Plateu
Comment Read comments Mar 3 2019
SD112826
Phacelia parryi
Darley F. Howe
1952-5-4
2202
Ventura
Santa Monica Mountains: Little Sycamore Canyon.
305
Comment
CAS-BOT-BC27134
Phacelia peirsoniana
John Thomas Howell
1938-8-7
14353
Mono
near Little Round Valley
Comment
RSA88077
Phacelia purpusii
J. T. Howell
1951-7-22
28146
Tulare
1.5 miles E of Slapjack Creek, Sequoia Park, on road to Mineral King.
1738
Comment
CAS-BOT-BC144974
Phacelia ramosissima var. austrolitoralis
John Thomas Howell
1927-7-24
2825
Orange
Floor of Claymine Canyon, northern Santa Ana Mts.
152
Comment
CAS-BOT-BC154302
Phacelia ramosissima var. eremophila
John Thomas Howell
1964-8-10
40932
Alpine
Rocky knoll about 0.5 mile southwest of Monitor Pass
2514
Comment
SD53096
Phacelia ramosissima var. montereyensis
Darley F. Howe
1962-7-22
3343
San Luis Obispo
Near Oso Flaco Lake in sand dunes.
Comment
SBBG29809
Phacelia rattanii
J. T. Howell
1944-6-11
Santa Cruz
1.5 mi N of Felton
Comment
SD51413
Phacelia vallis-mortae
Darley F. Howe
1961-6-18
3034
Inyo
White Mts., about 2 miles north of Westgard Pass.
2438
Comment
CAS-BOT-BC250618
Phalaris minor
John Thomas Howell
1960-3-24
35152
Riverside
La Quinta
Comment
SEINET10593167
Phalaris minor
John Thomas Howell
1933-5-14
Howell 11234
Contra Costa
St. Mary's College
Comment
CAS-BOT-BC250809
Phleum alpinum
John Thomas Howell; Gordon H. True
1967-7-4
43032
Tulare
Fish Creek about 3.5 miles south of Troy Meadow, Kern Plateau
2255
Comment
RSA26252
Phleum alpinum
J. T. Howell
1940-8-3
15949
Tulare
East Lake.
2927
Comment
CAS-BOT-BC250888
Phleum pratense
John Thomas Howell
1947-8-16
24138
Inyo
Big Pine Lakes Trail
2804
Comment
SD102825
Phlox stansburyi
D. F. Howe
1978-6-22
Mono
Near Hwy 395 8.7 miles north of Lee Vining.
2377
Comment
CAS-BOT-BC134915
Phoradendron bolleanum
John Thomas Howell
1955-6-14
30443
Butte
Magalia. Sierra Nevada
731
Comment
SBBG50201
Phoradendron bolleanum
J. T. Howell
1970-9-23
Kern
near Tiger Flat, E side of Sunday Peak, Greenhorn Mtns
1981
Comment
CAS-BOT-BC135161
Phoradendron juniperinum
John Thomas Howell; Gordon H. True
1970-5-28
5365
Nevada
Bear Valley on Highway 20, ca. 20 mi E of Nevada City. Sierra Nevada
1402
Comment
CAS-BOT-BC58250
Phyllodoce breweri
John Thomas Howell
1947-7-23
23553
Tulare
Dollar Lake, San Bernardino Mts.
2865
Comment
LA41254
Phyllodoce empetriformis
John Thomas Howell;
1937-7-24
13396
Siskiyou
Caribou Basin, Salmon-Trinity Alps
1981
Comment
RSA691
Physalis philadelphica
J. T. Howell
1927-7-28
513
Orange
West side, Rancho Santa Ana.
152
Comment
CAS-BOT-BC140558
Physocarpus capitatus
John Thomas Howell
1927-5-10
2381
Alameda
Strawberry [Canon] Canyon, Berkeley Hills
182
Comment
RSA0107087
Phytolacca americana
D. F. Howe
1936-7-25
s.n.
San Diego
Chula Vista.
Comment
UCD98428
Phytolacca heterotepala
John Thomas Howell
1959-8-28
34602
San Francisco
Geary Street between Gough and Franklin streets, San Francisco.
Comment
CAS-BOT-BC73474
Picea breweriana
John Thomas Howell
1939-8-2
14900
Siskiyou
Spirit Lake, Marble Mts.
1828
Comment
CAS-BOT-BC478168
Pinus albicaulis
John Thomas Howell
1934-6-14
12109
Modoc
Near Lost Lake, Warner Mountains
2438
Comment
CAS-BOT-BC78326
Pinus attenuata
John Thomas Howell
1937-7-27
13571
Siskiyou
Salmon River near Big Flat
1524
Comment
CAS-BOT-BC78439
Pinus contorta subsp. murrayana
John Thomas Howell
1960-8-20
36203
Tehama
Morgan
1463
Comment
CAS-BOT-BC78503
Pinus contorta subsp. murrayana
John Thomas Howell
1950-7-18
27039
Tulare
Bakeoven Meadows, South Fork of Kern River
2468
Comment
CAS-BOT-BC78837
Pinus monophylla
John Thomas Howell
1958-7-30
34115
Fresno
West of Simpson Meadow, Middle Fork of the Kings River
1798
Comment
SD112165
Pinus quadrifolia
Darley F. Howe
1939-5-23
838
San Diego
Lookout Point Laguna Mountains. (IPB 5/07)
Comment
CAS-BOT-BC80024
Pinus sabiniana
John Thomas Howell
1960-3-25
35162
Kern
West side of Walker Pass
1432
Comment
UC1177384
Piperia elegans
John Thomas Howell
1946-8-23
22887
Marin
Pierce Pt. road Point Reyes Peninsula
Comment
CAS-BOT-BC254403
Piptatherum miliaceum
John Thomas Howell
1961-9-22
36763
Butte
N Fork of Feather River, 10 miles from Oroville
121
Comment
CAS-BOT-BC254424
Piptatherum miliaceum
John Thomas Howell
1963-8-5
39972
Monterey
Along railroad tracks, King City
Comment
CAS-BOT-BC228016
Plagiobothrys
John Thomas Howell
1926-7-30
2163
Plumas
Prattville
1371
Comment
POM204149
Plagiobothrys greenei
J. T. Howell
1934-3-27
11803
Sonoma
Summit of Bennett Valley road from Glen Ellen to Santa Rosa
Comment
CAS-BOT-BC231050
Plagiobothrys hispidulus
John Thomas Howell
1950-7-14
26822
Tulare
Bakeoven Meadows, S Fork of Kern River
2468
Comment
CAS-BOT-BC231051
Plagiobothrys hispidulus
John Thomas Howell
1942-8-1
17521
Tulare
Sky Parlor Meadow, Chagoopa Plateau
Comment
UCD120831
Plagiobothrys hispidulus
John Thomas Howell
1960-7-19
35613
Plumas
Drakesbad, Lassen Volcanic National Park.
1676
Comment
CAS-BOT-BC230938
Plagiobothrys hispidulus
John Thomas Howell
1943-7-16
18393
Nevada
W side of Donner Pass near Norden
2133
Comment
SD61055
Plagiobothrys hispidus
D. F. Howe
1964-8-5
3941
Siskiyou
3.7 mi. so. Of no. entrance to Klamouth Nat. Forest on #97.
1584
Comment
CAS-BOT-BC230604
Plagiobothrys torreyi
John Thomas Howell; Gordon H. True
1967-7-4
42932
Tulare
Kern Plateau. Troy Meadow
2377
Comment
UC881362
Plagiobothrys undulatus
John Thomas Howell
1937-6-6
13014
Sonoma
Sebastopol
Comment
CAS-BOT-BC60817
Planodes virginica
John Thomas Howell
1930-4-12
4684
San Joaquin
7 miles from Escalon on road to Stockton.
Comment
RSA201465
Plantago elongata subsp. pentasperma
J. T. Howell
1965-4-27
41256
Merced
5 miles E of Los Banos.
30
Comment
POM203259
Plantago erecta
J. T. Howell
1931-4-2
6052
Napa
Wooden Valley Grade 4 miles E of Napa.
Comment
POM215031
Plantago erecta
J. T. Howell
1930-4-20
4721
Marin
Point Reyes Peninsula, 5 miles from Inverness.
Comment
UCD124456
Plantago erecta
John Thomas Howell
1963-6-22
39520
Monterey
near summit of Mustang Grade east of Lorenzo Creek.
Comment
SD64364
Plantago indica
Darley F. Howe
1966-8-27
Siskiyou
8.5 miles north of Weed on Highway 97.
1189
Comment
JEPS39475
Plantago major
John Thomas Howell
1963-6-21
39447
Monterey
near ne limits Salinas; Salinas
Comment
POM259272
Plantago truncata subsp. firma
J. T. Howell
1940-4-14
15396
Marin
San Anselmo Creek Canyon.
Comment
RSA43361
Plectritis macrocera subsp. macrocera
J. T. Howell
1948-4-26
24290
Santa Clara
West side of Pacheco Pass near summit.
Comment
RSA40179
Poa
J. T. Howell
1944-7-16
19813
Glenn
Black Butte
Comment
UCD90355
Poa annua
John Thomas Howell
1944-8-5
19932
Tuolumne
Tuolumne Meadows, Soda Springs.
Comment
SD112920
Poa bolanderi
Darley Howe
1947-5-31
1755
Kern
Greenhorn Mts.
1981
Comment
CAS-BOT-BC255003
Poa bulbosa
Thomas Howell; T. C. Fuller; G. D. Barbe
1980-4-29
53402
Siskiyou
Forest Mountain Summit, 6 miles SW of Yreka on road to Fort Jones
1249
Comment
CAS-BOT-BC255034
Poa compressa
John Thomas Howell; Gordon H. True; Margaret Williams
1973-6-28
49506
Lassen
Elysian Valley, W of Janesville
1325
Comment
UCD90945
Poa cusickii subsp. epilis
John Thomas Howell
1944-8-3
19877
Mono
Sonora Pass.
2926
Comment
CAS-BOT-BC254246
Poa glauca subsp. rupicola
John Thomas Howell
1947-8-11
23977
Inyo
Inconsolable Range
3810
Comment
CAS-BOT-BC246865
Poa nervosa
John Thomas Howell
1943-7-26
18857 A
Placer
Between Sugar Bowl and Norden
Comment
SEINET10893570
Poa nevadensis
John Thomas Howell
1962-6-18
Howell 37757
Plumas
Sierra Valley near Beckwourth. Culm-ligule ca. 4 mm.
1487
Comment
CAS-BOT-BC247306
Poa pratensis
John Thomas Howell; Gordon H. True
1971-6-16
47973
Kern
Claraville
1920
Comment
CAS-BOT-BC255944
Poa pratensis
John Thomas Howell
1945-6-19
21051
Lake
Sawmill Flat, Bartlett Mountain
1219
Comment
POM303608
Poa pratensis
J. T. Howell
1943-8-3
18937
Glenn
Plaskett Meadows.
1829
Comment
SEINET196488
Poa pratensis
John Thomas Howell
1949-7-19
25492
Tulare
Rock Creek, Sierra Nevada ,Tulare County
3200
Comment
GH360849
Poa secunda
J. T. Howell
1941-7-24
16425
Unknown
Near Garnet Lake
2956
Comment
RSA300149
Poa secunda
J. T. Howell, Gordon H. True
1967-5-9
42233
Butte
Southeast side of North Fork of Feather River at Pulga Bridge
Comment
SD102202
Poa secunda
Darley F. Howe
1978-6-24
Alpine
Along state highway 89, 10.8 miles southeast of Markleeville
2286
Comment
CAS-BOT-BC236312
Poa secunda subsp. juncifolia
John Thomas Howell
1950-7-18
27047
Tulare
Bakeoven Meadows, around mineral springs, S Fork of Kern River
2468
Comment
CAS-BOT-BC247083
Poa secunda subsp. juncifolia
John Thomas Howell; Gordon H. True
1970-7-28
47007
Tulare
West side of Big Meadow just south of Pipe Spring, Kern Plateau
2377
Comment
SEINET7294047
Poa secunda subsp. juncifolia
John Thomas Howell
1978-1
53355
Nevada
5 miles north of Truckee on road to Sierraville
1768
Comment
CAS-BOT-BC236034
Poa secunda subsp. secunda
John Thomas Howell; Gordon H. True
1967-5-29
42271
Inyo
1/3 mile E of head of Nine Mile Canyon
1828
Comment
CAS-BOT-BC242978
Poa secunda subsp. secunda
John Thomas Howell; Gordon H. True; Wayne Dakan
1974-7-30
50637
Plumas
Headwaters of Indian Creek SE of Diamond Mountain
2164
Comment
CAS-BOT-BC243312
Poa secunda subsp. secunda
John Thomas Howell
1942-8-5
17719
Tulare
Between Big Arroyo and Chagoopa Plateau
Comment
CAS-BOT-BC243334
Poa secunda subsp. secunda
John Thomas Howell; T. C. Fuller; G. D. Barbe
1980-7-16
53818
Tulare
Sherman Pass Road W of the pass, Kern Plateau
2438
Comment
CAS-BOT-BC244501
Poa secunda subsp. secunda
John Thomas Howell
1964-4-26
40437
Mariposa
Just SE of Mariposa, on road to Morman Bar
594
Comment
CAS-BOT-BC247607
Poa secunda subsp. secunda
John Thomas Howell
1934-7-1
12342
Modoc
Duncan Horse Camp.
1355
Comment
CAS-BOT-BC247660
Poa secunda subsp. secunda
John Thomas Howell
1934-6-11
11927
Modoc
Parker Creek.
1584
Comment
SD223160
Poa secunda subsp. secunda
Darley F. Howe
1963-7-13
3644
Fresno
1.8 miles south of bridge east of Huntington Lake, Sierra National Forest
2316
Comment
UCD91645
Poa secunda subsp. secunda
John Thomas Howell
1943-7-21
18638
Placer
Donner Pass to Mt. Lincoln.
Comment
CAS-BOT-BC243012
Poa secunda subsp. secunda
John Thomas Howell
1933-4-22
11057
San Benito
Between Paicines and Pinnacles Post Office
Comment
UC526154
Poa unilateralis
John Thomas Howell
1933-4-12
10995
Marin
Sausalito hills Sausalito
Comment
UCD52763
Podagrostis humilis
John Thomas Howell
1960-7-23
35955
Plumas
near Soda Springs, Drakesbad.
1676
Comment
CAS-BOT-BC244342
Podagrostis humilis
John Thomas Howell
1944-8-14
20472
Tuolumne
Tuolumne Canyon above Glen Aulin
Comment
CAS-BOT-BC218387
Podistera nevadensis
John Thomas Howell
1938-8-11
14542
Tuolumne
Mt. Dana
3657
Comment
UC1988913
Pogogyne douglasii
John Thomas Howell
1929-8-4
4870
Napa
three miles from Pope Valley Store on road to Pope Creek Canyon. Same locality as No. 4278
Comment
RSA0022137
Pogogyne serpylloides
J. T. Howell
1930-4-22
4747
Contra Costa
Bald Peak
Comment
RSA0022163
Pogogyne serpylloides
J. T. Howell
1953-5-8
28958
Monterey
Carmel Valley
Comment
CAS-BOT-BC231350
Polemonium pulcherrimum
John Thomas Howell
1939-8-9
15220
Siskiyou
Ridge south of Marble Valley, Marble Mts.
Comment
CAS-BOT-BC231351
Polemonium pulcherrimum
John Thomas Howell
1937-7-24
13377
Siskiyou
Caribou Basin, Salmon-Trinity Alps
2286
Comment
SD88469
Polygala californica
Darley F. Howe
1972-6-30
Del Norte
4.5 miles south of Oregon State line on US 199
671
Comment
CAS-BOT-BC413757
Polygonum argyrocoleon
John Thomas Howell
1953-6-3
29057
San Mateo
Bayshore Highway, Redwood City
Comment
CAS-BOT-BC414142
Polygonum aviculare subsp. aviculare
John Thomas Howell; R. C. Barneby
1954-5-8
29200
Tulare
Terra Bella
152
Comment
CAS-BOT-BC414283
Polygonum aviculare subsp. depressum
John Thomas Howell; Gordon H. True
1969-9-29
46303
Tulare
Dry Lake about 5 miles south of Big Meadow on Cherry Hill Road. Kern Plateau
2316
Comment
UCD100062
Polygonum aviculare subsp. depressum
John Thomas Howell
1958-8-10
34266
Madera
Sierra Nevada, Millow Meadow.
2103
Comment
CAS-BOT-BC414358
Polygonum californicum
John Thomas Howell
1955-6-12
30309
Tehama
8.5 miles south of Corning
Comment
CAS-BOT-BC414443
Polygonum douglasii
John Thomas Howell
1958-7-23
33815
Fresno
Simpson Meadow, Middle Fork of the Kings River
1828
Comment
CAS-BOT-BC414698
Polygonum douglasii
John Thomas Howell
1938-8-12
14565
Tuolumne
Tuolumne Meadows
Comment
SDSU9662
Polygonum minimum
D. F. Howe
1964-7-28
3882
Sierra
5.5 miles south of Gold Lkae Lodge, Tahoe National Forest.
1829
Comment
SEINET12884070
Polygonum minimum
J. T. Howell
1944-1
20308
Unknown
Comment
POM299031
Polygonum patulum
J. T. Howell
1933-10-22
1172 a
Santa Clara
Bayshore Hwy between Palo Alto and Sunnyvale.
Comment
CAS-BOT-BC419878
Polygonum polygaloides subsp. confertiflorum
John Thomas Howell; Gordon H. True
1970-7-14
5570 A
Nevada
Road from Russel Valley to Prosser Dam ca. 2 miles south of county line
1950
Comment
CAS-BOT-BC419965
Polygonum polygaloides subsp. kelloggii
John Thomas Howell
1962-7-10
38504
Kern
Shirley Meadows, Greenhorn Mountains
2011
Comment
POM225313
Polygonum punctatum
J. T. Howell
1932-9-18
10770
Sonoma
Kenwood Marsh near Kenwood
Comment
CAS-BOT-BC420178
Polygonum sawatchense subsp. sawatchense
John Thomas Howell
1946-7-14
22347
Inyo
Mosquito Flat, Rock Creek Lake Basin
3139
Comment
CAS-BOT-BC233139
Polypogon interruptus
John Thomas Howell
1956-4-22
31257
San Francisco
Near Fisherman's Wharf, San Francisco
Comment
CAS-BOT-BC233239
Polypogon maritimus
John Thomas Howell
1945-6-24
21236
Marin
Willow Meadows, Mount Tamalpais
Comment
CAS-BOT-BC233235
Polypogon maritimus
John Thomas Howell
1955-6-14
30431
Shasta
E of Whiskeytown
Comment
CAS-BOT-BC237461
Polypogon viridis
John Thomas Howell
1959-9-26
35069
Plumas
Near Soda Spring, Feather River Canyon
682
Comment
RSA11
Polystichum imbricans subsp. curtum
J. T. Howell
1927-8-2
571
Riverside
Road to Hemet, Mt. San Jacinto.
1372
Comment
CAS-BOT-BC72359
Polystichum imbricans subsp. imbricans
John Thomas Howell
1959-9-26
35041
Plumas
Slaty Rocks near Keddie
1005
Comment
CAS-BOT-BC102351
Populus alba
John Thomas Howell
1962-6-18
37828
Sierra
Sattley
1524
Comment
CAS-BOT-BC102780
Populus tremuloides
John Thomas Howell; Gordon H. True
1966-7-11
41742
Tulare
Horse Meadow, Kern Plateau
2255
Comment
UCD110709
Populus tremuloides
John Thomas Howell
1960-8-21
36302
Tehama
Bluff Falls.
1981
Comment
CDA42313
Porterella carnosula
John Thomas Howell, Gordon H. True
1970-7-28
46995
Tulare
Sierra Nevada; Kern Plateau; Big Meadow.
Comment
CAS-BOT-BC452152
Potamogeton diversifolius
John Thomas Howell
1926-5-22
1990
Merced
Bellvue [Bellevue] Ranch, 3 miles n. of Merced
Comment
CAS-BOT-BC453907
Potamogeton pectinatus
John Thomas Howell
1929-10-5
4439
El Dorado
Margin of Lake Tahoe, Tahoma Lodge, 2 miles n. of Meeks Bay.
Comment
CAS-BOT-BC453965
Potamogeton pectinatus
John Thomas Howell
1944-8-4
19906
Mono
Between Pickle Meadow and Hardy Station
Comment
CAS-BOT-BC143402
Potentilla
John Thomas Howell
1976-7-19
51960
Lassen
Southwest of Susanville on Gold Run Road
1341
Comment
RSA0084028
Potentilla
John T. Howell
1951-7-17
27820
Tulare
White Chief trail. Mineral King and vicinity.
2591
Comment
CAS-BOT-BC141860
Potentilla anserina
John Thomas Howell; Gordon H. True
1967-7-3
42852
Tulare
Rockhouse Meadow - Kern Plateau, Sierra Nevada
1706
Comment
CAS-BOT-BC141865
Potentilla anserina
John Thomas Howell
1950-7-14
26814
Tulare
Bakeoven Meadows, South Fork of Kern River, Sierra Nevada
2468
Comment
CAS-BOT-BC143134
Potentilla breweri
John Thomas Howell
1948-7-24
24969
Fresno
Bullfrog Lake
3240
Comment
CAS-BOT-BC143199
Potentilla breweri
John Thomas Howell
1942-8-3
17603
Tulare
Between Little Five Lakes and Kaweah Gap
Comment
RSA442244
Potentilla glandulosa subsp. pseudorupestris
J. T. Howell
1947-8-9
23963
Inyo
Seventh Lake. Big Pine Lakes.
3415
Comment
CAS-BOT-BC141630
Potentilla gracilis var. elmeri
John Thomas Howell
1925-7-2
1366
El Dorado
Between Fallen Leaf Camp and Lake Tahoe
Comment
CAS-BOT-BC141639
Potentilla gracilis var. elmeri
John Thomas Howell
1950-7-25
27336
Tulare
South Fork of Kern River
2468
Comment
CAS-BOT-BC158558
Potentilla pseudosericea
John Thomas Howell
1947-8-11
24023
Inyo
South end of Coyote Ridge
3657
Comment
UCR66578
Potentilla pseudosericea
J. T. Howell
1947-8-11
24023
Inyo
Sierra Nevada Mtns., south end of Coyote Ridge
3659
Comment
CAS-BOT-BC47639
Primula suffrutescens
John Thomas Howell
1940-8-4
15983
Tulare
Ouzel Basin
3200
Comment
CAS-BOT-BC47642
Primula suffrutescens
John Thomas Howell
1942-7-31
17460
Tulare
Above timberline, Mt. Kaweah
Comment
CAS-BOT-BC516316
Prosartes hookeri
John Thomas Howell
1944-7-17
19835
Glenn
Canyon of Snow Basin Creek
Comment
SD51292
Prunus andersonii
Darley F. Howe
1961-4-26
Inyo
1.6 miles from entrance to Inyo Nat. Forest on road to Westgard Pass.
Comment
CAS-BOT-BC158193
Prunus emarginata
John Thomas Howell
1961-6-20
36537
Shasta
On Chaos Crags Trail near Manzanita Lake
1889
Comment
SD50999
Prunus fasciculata
Darley F. Howe
1960-4-10
San Luis Obispo
South of Morro Bay.
Comment
CAS-BOT-BC154736
Prunus virginiana var. demissa
John Thomas Howell
1943-8-12
19302
Glenn
Canyon of Snow Basin Creek
Comment
CAS-BOT-BC356316
Psathyrotes ramosissima
John Thomas Howell
1928-4-3
3677
Inyo
Bed of Furnace Creek Wash where it enters Death Valley. Alt. near sea level
Comment
CAS-BOT-BC162039
Pseudelymus saxicola
John Thomas Howell
1952-6-14
28353
Siskiyou
7 miles east of Callahan on road to Gazelle.
Comment
CAS-BOT-BC356382
Pseudognaphalium beneolens
John Thomas Howell
1960-7-20
35756
Plumas
Lassen Volcanic National Park. Boiling Springs Lake
1798
Comment
CAS-BOT-BC356510
Pseudognaphalium beneolens
John Thomas Howell
1970-9-22
47292
Tulare
Kern River Canyon, 3 miles south of Hospital Flat
853
Comment
CAS-BOT-BC356515
Pseudognaphalium beneolens
John Thomas Howell
1959-9-21
34737
Plumas
Belden
701
Comment
CAS-BOT-BC356519
Pseudognaphalium beneolens
John Thomas Howell; Gordon H. True
1969-9-30
46380
Tulare
Cherry Hill Road 4 miles from Burton Camp, canyon of Poison Meadow Creek. Kern Plateau
2194
Comment
CAS-BOT-BC356511
Pseudognaphalium beneolens
John Thomas Howell; Gordon H. True
1971-7-16
48629
Tulare
Near Last Chance Creek, about 2 miles northwest of Johnsondale
2042
Comment
CAS-BOT-BC357090
Pseudognaphalium luteoalbum
John Thomas Howell
1943-6-29
18243
San Francisco
Concert Valley, Golden Gate Park, San Francisco
Comment
CAS-BOT-BC357251
Pseudognaphalium microcephalum
John Thomas Howell
1940-7-28
15629
Fresno
Near Sphinx Creek, Bubbs Creek
1889
Comment
CAS-BOT-BC357250
Pseudognaphalium microcephalum
John Thomas Howell
1958-7-28
34046
Fresno
Blue Canyon Creek east of Tehipite Valley, Middle Fork of the Kings River
1432
Comment
CAS-BOT-BC357399
Pseudognaphalium microcephalum
John Thomas Howell
1951-8-21
28240
Sierra
5 miles from Calpine on road to Blairsden
1524
Comment
CAS-BOT-BC95226
Pseudostellaria jamesiana
John Thomas Howell
1934-6-11
11959
Modoc
Parker Creek, Warner Mts.
1584
Comment
CAS-BOT-BC328198
Psilocarphus brevissimus var. multiflorus
John Thomas Howell
1930-5-21
5193
Santa Clara
1 mile south of Morgan Hill
Comment
CAS-BOT-BC361997
Psilocarphus tenellus
John Thomas Howell; Gordon True; Walter Knight; Irja Knight
1967-7-10
2126
Plumas
Butterfly Botanical Area and Vicinity
1127
Comment
SDSU427
Psilostrophe cooperi
D. F. Howe
1960-9-14
2957
San Bernardino
2 miles north of #466 on road to Kingston Mts.
1097
Comment
SD50785
Psorothamnus arborescens var. minutifolius
Darley F. Howe
1959-4-16
Kern
52.5 miles north of Mojave on road to Owens Valley.
Comment Read comments Feb 5 2014
SD51207
Psorothamnus emoryi var. emoryi
Darley F. Howe
1960-7-13
San Bernardino
55 miles east of road going north of 29 palms, on road to Amboy
609
Comment Read comments Jul 1 2013
UC990934
Psorothamnus schottii
D. F. Howe
1952-4-27
Riverside
5 mi s of highway e Mecca (along all American Canal); , e of Mecca
Comment
POM203037
Ptelea baldwinii subsp. crenulata
J. T. Howell
1934-4-8
11811
Contra Costa
7 miles from Clayton on road to Livermore.
Comment
CAS-BOT-BC72561
Pteridium aquilinum
John Thomas Howell
1958-5-26
33463
Inyo
Near Gray's Meadow
1767
Comment
SDSU9684
Pterostegia drymarioides
D. F. Howe
1964-5-19
3778
Fresno
Near entrance to Sierra National Forest on #168.
762
Comment
UCD91536
Puccinellia distans
John Thomas Howell
1944-8-5
19925
Tuolumne
Tuolumne Meadows, Soda Springs.
Comment
UCD91857
Puccinellia distans
John Thomas Howell
1963-7-10
39681
Alpine
Sierra Nevada. Grover Hot Springs.
1798
Comment
CAS-BOT-BC460616
Pyrola aphylla
John Thomas Howell
1940-5-12
15410
Marin
Woods south of Lagunitas
Comment
CAS-BOT-BC460824
Pyrola aphylla
John Thomas Howell; T. C. Fuller; G. D. Barbe
1981-6-24
54226
Plumas
Sierra Nevada: abuot 5 miles SE of Mt. Hough on the road to Quincy
1584
Comment
HSC17970
Pyrola asarifolia subsp. bracteata
J. Wendell Howe
1930-6-28
Humboldt
Kneeland Prairie, edge of Redwood Belt
Comment
CAS-BOT-BC462903
Pyrola picta
John Thomas Howell
1960-8-19
36148
Tehama
Lassen Volcanic National Park: Brokeoff Mt. Trail
2590
Comment
CAS-BOT-BC362234
Pyrrocoma apargioides
John Thomas Howell
1950-7-18
27052
Tulare
Bakeoven Meadows, South Fork of Kern River
2468
Comment
CAS-BOT-BC94233
Quercus X eplingii
John Thomas Howell
1946-5-19
21904
Marin
near Camp Lilienthal, Fairfax Hills
Comment
CAS-BOT-BC94694
Quercus X howellii
John Thomas Howell
1955-6-15
30493
Butte
6 miles from Paradise on road to Pentz
426
Comment
CAS-BOT-BC104164
Quercus X morehus
John Thomas Howell
1925-10-11
1503
Contra Costa
Chaparral, Moraga Ridge, Oakland Hills
Comment
UC1177415
Quercus X subconvexa
John Thomas Howell with John Tucker
1947-8-31
24175
Marin
n of Alpine Lake (Ridgecrest Road)
Comment
UCD45129
Quercus agrifolia
John Thomas Howell
1950-7-5
26638
Contra Costa
Small tree, Nortonville, Contra Costa Co.
Comment
CAS-BOT-BC62392
Quercus chrysolepis
John Thomas Howell
1927-7-9
2701
San Bernardino
Whiskey Springs, Cushenbury Road, N ridge of San Bernardino Mts.
1652
Comment
CAS-BOT-BC62717
Quercus chrysolepis
John Thomas Howell
1965-4-26
41159
Madera
3 miles south of Oakhurst
914
Comment
RSA155
Quercus chrysolepis
J. T. Howell
1927-8-2
575
Riverside
Road to Hemet, Mt. San Jacinto.
1372
Comment
CAS-BOT-BC85937
Quercus douglasii
John Thomas Howell
1927-8-23
3043
Napa
On hills on N side of Chiles Valley, Napa Range
213
Comment
CAS-BOT-BC86435
Quercus dumosa
John Thomas Howell
1933-8-27
11647
Napa
E of Chiles Valley on road to Winters, Napa Range
Comment
UCD45903
Quercus durata var. durata
John Thomas Howell
1959-9-21
34789
Plumas
Plumas Co. El. 2500 ft.
762
Comment
CAS-BOT-BC94674
Quercus garryana
John Thomas Howell; T. C. Fuller; G. D. Barbe
1980-5-20
53503
Trinity
One-eye Flat, about 1.7 miles N of Carrville, Trinity River Canyon
755
Comment
UCD46166
Quercus garryana var. semota
John Thomas Howell
1954-6-4
29917
Tuolumne
Between Twain Harte and Stanislaus River bridge, Tuolumne County.
Comment
UCD56583
Quercus kelloggii
John Thomas Howell
1976-7-14
51823
Plumas
Sierra Nevada. American Valley near Quincy on road to Quincy Junction.
1036
Comment
CAS-BOT-BC61621
Quercus lobata
John Thomas Howell
1964-4-29
40677
Tuolumne
at Tuolumne River bridge, 2.5 miles east of Jacksonville
198
Comment
SDSU6990
Quercus turbinella
D. F. Howe
1941-9-21
1247
San Diego
Road between Boulevard and Campo.
Comment
A343547
Quercus vacciniifolia
J. T. Howell
1937-7-26
13522
Unknown
Caribou Basin, Salmon-Trinity Alps
1981
Comment
CAS-BOT-BC134812
Quercus wislizeni
John Thomas Howell
1931-4-13
6323
Santa Barbara
Santa Cruz Island near West end
Comment
UCD47634
Quercus wislizeni
John Thomas Howell; Gordon H. True
1967-9-18
43795
Tulare
Tulare County.: 4.5 miles from Lamont Meadow on road to Long Valley, Kern Plateau,
1584
Comment Read comments Oct 23 2013
A343744
Quercus wislizeni var. frutescens
J. T. Howell
1927-8-2
2938
Unknown
Top of control on road to Hemet, Mt. San Jacinto
1371
Comment
RSA167
Quercus wislizeni var. frutescens
J. T. Howell
1927-8-2
577
Riverside
Road to Hemet, Mt. San Jacinto.
1372
Comment
CAS-BOT-BC362413
Rafinesquia
John Thomas Howell
1960-5-2
35257
Mariposa
Near Coulterville
548
Comment
SD113007
Rafinesquia californica
Darley F. Howe
1937-5-8
500
San Diego
Otay Mesa
Comment
CAS-BOT-BC362691
Raillardella argentea
John Thomas Howell
1960-8-19
36156
Tehama
Lassen Volcanic National Park. Brokeoff Mt. Trail
2682
Comment
CAS-BOT-BC362785
Raillardella argentea
John Thomas Howell
1950-7-22
27244
Tulare
Summit ridge, Olancha Peak
3698
Comment
CAS-BOT-BC362796
Raillardella argentea
John Thomas Howell
1944-8-12
20347
Tuolumne
Between Tioga Pass and Gaylor Lakes
Comment
RSA201483
Raillardiopsis muirii
J. T. Howell
33960
Fresno
Tehipite Valley, Middle Fork of the Kings River
1280
Comment
CAS-BOT-BC379015
Ranunculus aquatilis var. diffusus
John Thomas Howell
1931-9-27
8119
Mendocino
Garcia River 3.5 mi north of Point Arena
Comment
CAS-BOT-BC378959
Ranunculus bonariensis
John Thomas Howell
1930-4-13
4707
Calaveras
7.5 mi from San Andreas on road to Valley Springs
Comment
SD50737
Ranunculus californicus
Darley F. Howe
1959-4-19
2712
Santa Barbara
Meadow, San Rafael Mts.
1372
Comment
SEINET12086619
Ranunculus occidentalis
J. T. Howell
1934-1
12305
Modoc
Duncan Horse Camp
Comment
SD149112
Rhamnus
John Thomas Howell
1976-7-14
51824
Plumas
American Valley near Qunicy on road to Qunicy Junction
1036
Comment
POM180605
Rhamnus californica
J. T. Howell
1930-10-25
5698
Modoc
Deep shade on bank of Arroyo Seco river, Santa Lucia Mts
Comment
RSA518948
Rhamnus tomentella subsp. cuspidata
J. T. Howell, G. H. True
1971-6-14
47682
Kern
3 mi. east of Glennville on Greenhorn Mountain rd.
1220
Comment
CAS-BOT-BC58106
Rhododendron columbianum
John Thomas Howell
1942-7-29
17363
Tulare
Little Five Lakes Basin.
Comment
SDSU3417
Rhododendron macrophyllum
D. F. Howe
1961-8-2
3120
Humboldt
7.7 miles east of Orick and Bald Mt. road.
610
Comment
CAS-BOT-BC92459
Ribes aureum var. gracillimum
John Thomas Howell
1963-6-22
39565
Monterey
Priest Valley.
Comment
CAS-BOT-BC93007
Ribes californicum var. californicum
John Thomas Howell
1930-3-30
4641
Santa Clara
West side of Pacheco Pass.
304
Comment
CAS-BOT-BC108751
Ribes cereum
John Thomas Howell
1964-5-13
40708
Shasta
Lava flow just north of Hat Creek P.O.
Comment
LA205416
Ribes cereum
John Thomas Howell;
1928-5-26
3848
Ventura
Mt. Pinos
Comment
UCR89359
Ribes cereum
J. T. Howell, Barbara T. Menzies, Roberta Shockey
1978-6-28
53131
Alpine
W of Ebbetts Peak
2713
Comment
CAS-BOT-BC169132
Ribes inerme var. inerme
John Thomas Howell; Gordon H. True
1971-7-14
48422
Tulare
North Fork of Manter Cerek in Black oak belt, Kern Plateau - Sierra Nevada
2225
Comment
A380415
Ribes marshallii
J. T. Howell
1939-8-2
14876
Unknown
Spirit Lake, Marble Mts.
Comment
CAS-BOT-BC212595
Ribes montigenum
John Thomas Howell; Barbara T. Menzies; Roberta Shockey
1978-6-28
53160
Alpine
Western slope of Ebbetts Peak
2773
Comment
GH380510
Ribes montigenum
J. T. Howell, B. T. Menzies & R. Shockey
1978-6-28
53160
Unknown
Western slope of Ebbetts Peak
2773
Comment
CAS-BOT-BC186231
Ribes roezlii var. roezlii
John Thomas Howell; T. C. Fuller; G. D. Barbe
1981-6-24
54239
Plumas
About 3 miles southeast of Mt. Hough on road to Quincy
1737
Comment
CAS-BOT-BC199012
Ribes roezlii var. roezlii
John Thomas Howell; Gordon H. True
1971-6-16
48007
Kern
1.5 miles south of Piute Peak, Sierra Nevada
2316
Comment
CAS-BOT-BC173877
Ribes velutinum
John Thomas Howell
1958-5-27
33480
Inyo
North Fork of Bishop Creek
2438
Comment
POM194217
Ribes velutinum
J. T. Howell
1928-5-26
3855
Ventura
Chula Vista Camp, Mt. Pinos, Ventura County
Comment
CAS-BOT-BC168739
Ribes victoris
John Thomas Howell
1943-3-7
17887
Marin
Hills northeast of San Rafael
Comment
CAS-BOT-BC363035
Rigiopappus leptocladus
John Thomas Howell
1955-5-20
30213
Monterey
3.5 miles east of summit of Jamesburg road, Santa Lucia Mts.
Comment
CAS-BOT-BC363047
Rigiopappus leptocladus
John Thomas Howell
1931-4-3
6130
Napa
Pope Creek Canyon, 8 miles from Monticello, Napa Range
Comment
RSA20165
Rigiopappus leptocladus
J. T. Howell
1937-5-19
12925
San Benito
The Pinnacles.
Comment
CAS-BOT-BC58413
Rorippa curvisiliqua
John Thomas Howell
1934-6-30
12296
Modoc
Duncan Horse Camp.
1355
Comment
CAS-BOT-BC58423
Rorippa curvisiliqua
John Thomas Howell
1934-6-12
12019
Modoc
Plum Valley, Warner Mts.
Comment
CAS-BOT-BC74586
Rorippa curvisiliqua
John Thomas Howell
1963-8-5
39915
Monterey
Along Watsonville-San Juan Road, about 2 miles south of Aromas.
Comment
CAS-BOT-BC74554
Rorippa curvisiliqua
John Thomas Howell
1924-6-14
411
Mariposa
Wawona Valley.
1219
Comment
RSA32272
Rorippa curvisiliqua
J. T. Howell
1946-6-16
22090
Marin
Point Reyes Station.
Comment
SD113310
Rorippa nasturtium-aquaticum
Darley F. Howe
1936-4-26
319
San Diego
Campo
Comment
SD114313
Rosa pisocarpa
D. F. Howe
1962-5-20
3286
Mendocino
9.1 miles north of Willits on #101
366
Comment
CAS-BOT-BC148226
Rosa spithamea
John Thomas Howell
1942-6-21
17001
Marin
San Anselmo Canyon
Comment
SD61071
Rosa woodsii var. ultramontana
Darley F. Howe
none given
Lassen
Hillside of Parsnip Creek, Modoc National Forest
1829
Comment
CAS-BOT-BC497329
Rosa woodsii var. ultramontana
John Thomas Howell
1934-6-12
12036
Modoc
7 miles N of Davis Creek
Comment
CAS-BOT-BC274269
Rostraria cristata
John Thomas Howell
1954-4-26
29187
Tehama
Dibble Creek just north of Red Bluff
Comment
A366054
Rubus
J. T. Howell
1938-6-4
13891
Unknown
Naturalized in Burlingame
Comment
A346208
Rubus parviflorus
J. T. Howell
1939-6-25
14807
Unknown
Mt. Tamalpais
Comment
CAS-BOT-BC156894
Rubus ursinus
John Thomas Howell
1970-4-1
46505
Monterey
Bank of Carmel River just south of Carmel at Highway #1
Comment
CAS-BOT-BC158742
Rubus ursinus
John Thomas Howell
1950-5-20
26317
Tulare
Three Rivers
304
Comment
CAS-BOT-BC158837
Rubus ursinus
John Thomas Howell
1938-5-22
13801
Marin
San Anselmo Canyon
Comment
CAS-BOT-BC158840
Rubus ursinus
John Thomas Howell
1938-6-19
13918
Marin
Azalea Flat, Mt. Tamalpais
Comment
CAS-BOT-BC158841
Rubus ursinus
John Thomas Howell
1938-6-5
13898
Marin
Azalea Flat, Mt. Tamalpais
Comment
CAS-BOT-BC158845
Rubus ursinus
John Thomas Howell
1938-6-19
13930
Marin
Near Trestle, Mt. Tamalpais
Comment
CAS-BOT-BC158849
Rubus ursinus
John Thomas Howell
1938-6-19
13929
Marin
Near Rattlesnake, Mt. Tamalpais
Comment
RSA40193
Rudbeckia occidentalis
J. T. Howell
1943-8-9
19222
Glenn
Plaskett Meadows.
1829
Comment
CAS-BOT-BC422165
Rumex californicus
John Thomas Howell
1959-9-21
34813
Plumas
Indian Creek Canyon
914
Comment
SD114202
Rumex conglomeratus
Darley F. Howe
1938-6-5
141
San Diego
Otay Valley, stream bank.
Comment
CAS-BOT-BC421767
Rumex conglomeratus
John Thomas Howell
1939-5-14
s.n.
Marin
Ross
Comment
CAS-BOT-BC421532
Rumex crassus
John Thomas Howell
1946-7-4
22173
Marin
Dillons Beach
Comment
CAS-BOT-BC433680
Rumex obtusifolius
John Thomas Howell
1937-5-23
s.n.
San Francisco
Presidio, San Francisco
Comment
CAS-BOT-BC433734
Rumex occidentalis
John Thomas Howell
1960-7-19
35623
Plumas
Lassen Volcanic National Park. Drakesbad
1828
Comment
CAS-BOT-BC109392
Rumex paucifolius
John Thomas Howell
1940-8-1
15870
Tulare
Between Reflection Lake and Harrison Pass.
Comment
CAS-BOT-BC433934
Rumex salicifolius
John Thomas Howell
1946-7-7
22204
Marin
Potrero Meadow, Mt. Tamalpais
Comment
CAS-BOT-BC433903
Rumex salicifolius
John Thomas Howell
1970-9-24
47386
Kern
Dry bed of Clear Creek, 1.5 mile n. of Havilah
914
Comment
NY430648
Rumex salicifolius subsp. triangulivalvis
J. T. Howell
1934-6-15
12189
Modoc
Alturas
Comment
UC1176808
Rumex salicifolius var. crassus
John Thomas Howell
1946-7-4
22173
Marin
Dillons Beach
Comment
CAS-BOT-BC434322
Rumex triangulivalvis
John Thomas Howell
1955-7-20
30878
Sierra
Near Calpine
1508
Comment
CAS-BOT-BC434366
Rumex violascens
John Thomas Howell
1970-9-25
47470
Kern
Strand-bed of Lake isabella (east side of north arm), about 5 miles south of Kernville
792
Comment
SD61014
Sagina saginoides
D. F. Howe
1964-8-1
Lassen
Parsnip Creek, Warner Mts., Modoc National Forest
1829
Comment
CAS-BOT-BC445632
Sagittaria brevirostra
John Thomas Howell
1947-6-18
23261
Marin
Laguna, Chileno Valley
Comment
A382361
Salix arctica
J. T. Howell
1940-8-2
15918
Unknown
West of Reflection Lake
3352
Comment
CAS-BOT-BC132882
Salix arctica
John Thomas Howell
1942-7-30
17421
Tulare
Little Five Lakes Basin
Comment
CAS-BOT-BC102816
Salix boothii
John Thomas Howell
1939-8-7
15132
Siskiyou
Sky High Valley, Marble Mts.
1828
Comment
CAS-BOT-BC108591
Salix drummondiana
John Thomas Howell
1969-8-28
46023
Tulare
Mineral King - Sierra Nevada
2377
Comment
A382513
Salix eastwoodiae
J. T. Howell
1939-8-5
15078
Unknown
Spirit Lake, Marble Mts.
Comment
RSA201502
Salix eastwoodiae
J. T. Howell
1939-8-7
15131
Siskiyou
Marble Mountain: Sky High Valley.
1829
Comment
CAS-BOT-BC103883
Salix exigua
John Thomas Howell; T. C. Fuller; G. D. Barbe
1981-6-23
54187
Plumas
Rush Creek
1402
Comment
RSA502889
Salix exigua
J. T. Howell
33512
Inyo
Bishop Creek.
2043
Comment
CAS-BOT-BC125140
Salix lasiandra var. lasiandra
John Thomas Howell; Barbara T. Menzies; Roberta Shockey
1978-5-17
52917
Calaveras
Camanche Parkway South between Burson Road and Camanche Reservoir
152
Comment
CAS-BOT-BC125520
Salix lasiandra var. lasiandra
John Thomas Howell
1975-6-4
51025
Tuolumne
South Fork Tuolumne River south of Mather
Comment
CAS-BOT-BC125521
Salix lasiandra var. lasiandra
John Thomas Howell
1954-6-6
29966
Tuolumne
Twain Harte
1127
Comment
CAS-BOT-BC128076
Salix lasiandra var. lasiandra
John Thomas Howell
1966-6-22
41591
Mono
Convict Lake - Sierra Nevada
Comment
CAS-BOT-BC128164
Salix lasiandra var. lasiandra
John Thomas Howell
1962-9-22
38750
Kern
Kern Co. Park - Greenhorn Mountains, Sierra Nevada
1828
Comment
CAS-BOT-BC107338
Salix lasiolepis var. bigelovii
John Thomas Howell
1963-8-5
39920
Monterey
Along Watsonville-San Juan Road, about 2 miles south of Aromas
Comment
CAS-BOT-BC107442
Salix lasiolepis var. lasiolepis
John Thomas Howell
1958-5-26
33415
Inyo
Onion Valley Road
2133
Comment
CAS-BOT-BC128442
Salix lasiolepis var. lasiolepis
John Thomas Howell; T. C. Fuller; G. D. Barbe
1981-6-24
54287
Plumas
Moist seepage area on China Grade, 1.4 miles south of Taylorsville - Sierra Nevada
1402
Comment
RSA128974
Salix lasiolepis var. sandbergii
J. T. Howell
1951-8-19
28171
Plumas
3 miles E of Rich Bar.
854
Comment Read comments Jun 4 2009
RSA504716
Salix lemmonii
J. T. Howell
1963-8-20
40150
Inyo
Whitney Portal.
2546
Comment
CAS-BOT-BC125036
Salix lemmonii
John Thomas Howell; Gordon H. True
1968-7-15
4389
Tuolumne
Just west of Sonora Pass, on Hwy. 108
2804
Comment
CAS-BOT-BC125062
Salix ligulifolia
John Thomas Howell; Gordon H. True
1969-9-29
46325
Kern
Fay Creek southeast of True Meadow, Kern Plateau
2072
Comment
CAS-BOT-BC125539
Salix lutea
John Thomas Howell; Gordon H. True
1971-6-16
47970
Kern
Claraville
1920
Comment
RSA44401
Salix lutea
J. T. Howell
1947-8-13
24065
Inyo
Big Pine Lakes Trail.
2744
Comment
CAS-BOT-BC125641
Salix melanopsis
John Thomas Howell
1962-7-12
38657
Kern
3 mi. north of Kernville
822
Comment
CAS-BOT-BC125702
Salix melanopsis
John Thomas Howell
1955-7-17
30680 A
Trinity
Weaverville
609
Comment
CAS-BOT-BC129402
Salix melanopsis
John Thomas Howell
1958-7-23
33822
Fresno
Simpson Meadow, Middle Fork of the Kings River - Sierra Nevada
1828
Comment
CAS-BOT-BC125800
Salix orestera
John Thomas Howell
1944-8-16
20640
Mono
Mono Pass
Comment
CAS-BOT-BC129372
Salix orestera
John Thomas Howell
1947-8-8
23926
Inyo
Second to Third Lake, Big Pine Lakes
3048
Comment
CAS-BOT-BC126170
Salix scouleriana
John Thomas Howell
1939-8-6
15102 A
Siskiyou
Elk Peak, Marble Mts., Siskiyou Mts.
Comment
CAS-BOT-BC126171
Salix scouleriana
John Thomas Howell
1939-8-5
15081
Siskiyou
Spirit Lake, Marble Mts.
1828
Comment
CAS-BOT-BC129103
Salix scouleriana
John Thomas Howell
1958-5-24
33268
Inyo
Whitney Portal - Sierra Nevada
2529
Comment
CAS-BOT-BC129199
Salix scouleriana
John Thomas Howell
1940-8-10
16095
Fresno
Junction Meadow, Bubbs Creek
Comment
CAS-BOT-BC175952
Salpichroa origanifolia
John Thomas Howell
1943-6-13
18224
Marin
Sausalito
Comment
CAS-BOT-BC180760
Salsola tragus
John Thomas Howell
1960-6-6
35368
Fresno
Kings Canyon 6.5 miles W of Cedar Grove - Sierra Nevada
1036
Comment
CAS-BOT-BC180761
Salsola tragus
John Thomas Howell
1963-8-21
40252
Inyo
Bishop Creek - Sierra Nevada
1950
Comment
CAS-BOT-BC180769
Salsola tragus
John Thomas Howell
1949-8-13
26298
Inyo
East slope of Wonoga Peak at end of road.
2590
Comment
CAS-BOT-BC180707
Salsola tragus
John Thomas Howell
1952-10-26
28876
Los Angeles
Vacant lot, Palmdale
Comment
RSA216174
Salsola tragus
J. T. Howell
1957-6-25
32774
Kern
Road cut, 3.8 miles from Edison on road to Tehachapi.
244
Comment
SD81179
Salvia columbariae
Darley F. Howe
1971-5-3
San Bernardino
13 miles east of Goffs.
502
Comment
CAS-BOT-BC214271
Salvia dorrii var. pilosa
John Thomas Howell
1958-5-25
33366
Inyo
Carroll Creek
1676
Comment
CAS-BOT-BC245899
Sambucus nigra subsp. caerulea
John Thomas Howell; Gordon H. True
1969-10-1
46417
Tulare
Snake Creek, on Poison Meadow to Brush Creek Overlook Road, Kern Plateau, Sierra Nevada
2468
Comment
UC691880
Sanicula saxatilis
J. T. Howell
1942-5-24
16969
Contra Costa
Mount Diablo, Eagle Point Mount Diablo; , Eagle Point
Comment
SD112999
Sanicula tuberosa
Darley F. Howe
1955-5-22
2468
San Diego
One half mile south of Highway 80 on road to Hipass
1220
Comment
CAS-BOT-BC466344
Sarcodes sanguinea
John Thomas Howell
1958-7-26
33954
Fresno
Sierra Nevada. Simpson Meadow, Middle Fork of the Kings River
1828
Comment
CAS-BOT-BC441197
Saxifraga mertensiana
John Thomas Howell
1934-3-4
11771
Mendocino
Near headwaters of Navarro River between Brownville and Cloverdale
Comment
UCD126467
Schedonorus arundinaceus
John Thomas Howell
1960-8-20
36248
Tehama
Morgan, Lassen Volcanic National Park.
1463
Comment
CAS-BOT-BC283624
Schedonorus pratensis
John Thomas Howell
1951-6-26
27520
Butte
Big Bend Mt
609
Comment
CAS-BOT-BC283603
Schedonorus pratensis
John Thomas Howell
1964-8-10
40923
Alpine
Markleeville
1676
Comment
CDA2419
Schismus arabicus
J. T. Howell
1948-4-26
24268
Kern
2 mi. N of Mohave.
0
Comment
SD112698
Schismus arabicus
Darley F. Howe
1953-5-2
2293
Los Angeles
Mouth of Wain Canyon, Santa Catalina Island
Comment Read comments Jun 10 2014
SEINET196568
Schismus arabicus
John Thomas Howell
1948-1
24268
Kern
2 miles north of Mohave
Comment
RSA54091
Scirpus congdonii
J. T. Howell
1946-8-30
22917
El Dorado
Upper Angora Lake
Comment
CDA39117
Scirpus cyperinus
J. T. Howell
1976-8-13
52233
Mariposa
Sierra Nevada; Merced River near mouth of Yosemite Creek, Yosemite Valley.
Comment
CAS-BOT-BC239964
Scribneria bolanderi
John Thomas Howell
1955-6-14
30466
Butte
Magalia
731
Comment
CAS-BOT-BC239977
Scribneria bolanderi
John Thomas Howell
1960-6-7
35417
Fresno
Kings Canyon road 6.5 mi. ne. of Cherry Gap
1554
Comment
CAS-BOT-BC240005
Scribneria bolanderi
John Thomas Howell
1946-4-13
s.n.
Marin
Near Rock Spring, Mt. Tamalpais
Comment
CAS-BOT-BC243494
Scribneria bolanderi
John Thomas Howell
1954-4-26
29187 A
Tehama
Dibble Creek, just north of Red Bluff
Comment
SEINET10959759
Scribneria bolanderi
John Thomas Howell
1945-5-27
Howell 20879
Marin
Serpentine area above Bootjack, Mt. Tamalpais, .
Comment
RSA51478
Scrophularia californica var. desertorum
J. T. Howell
1949-7-30
25922
Tulare
Volcanic cone at Tunnel.
2927
Comment
SD128715
Scutellaria mexicana
Darley F. Howe
1980-5-26
San Bernardino
West slope of Clark Mountain.
1310
Comment
CAS-BOT-BC179222
Scutellaria nana
John Thomas Howell
1934-7-3
12374
Modoc
5 mi. S of Hackamore.
Comment
CAS-BOT-BC214270
Scutellaria nana
John Thomas Howell; Gordon H. True; Wayne Dakan
1974-7-30
50692
Lassen
Slope south and southeast of Diamond Mt., Sierra Nevada
2286
Comment
RSA676
Scutellaria siphocampyloides
J. T. Howell
1927-7-10
348
San Bernardino
Big Bear Lake.
2043
Comment
SD53215
Sedella pumila
Darley F. Howe
1962-5-16
Tuolumne
10 miles east of Sonora on Highway 108.
1130
Comment
CAS-BOT-BC59187
Sedum lanceolatum
John Thomas Howell
1939-8-4
15050
Siskiyou
Marble Rim, Marble Mts.
1889
Comment
SDSU5726
Sedum niveum
D. F. Howe
1946-8-3
1477
San Bernardino
Sugarloaf Peak.
2926
Comment Read comments Jan 24 2013
CAS-BOT-BC69809
Selaginella bigelovii
John Thomas Howell
1927-8-1
2886 A
Riverside
Morongo Canyon, n. Colorado desert.
609
Comment
CAS-BOT-BC62128
Selaginella hansenii
John Thomas Howell; R. C. Barneby
1954-5-9
29301
Fresno
Dunlap
563
Comment
CAS-BOT-BC62118
Selaginella hansenii
John Thomas Howell
1959-9-20
34716
Butte
Feather River Highway at West Branch bridge
Comment
UC473492
Selaginella leucobryoides
John Thomas Howell
1928-6-16
3989
Inyo
Surprise Canyon; Panamint Mts.
Comment
CAS-BOT-BC69711
Selaginella wallacei
John Thomas Howell
1941-4-5
16163
Napa
Franz Valley.
Comment
CAS-BOT-BC62199
Selaginella wallacei
John Thomas Howell
1926-11-14
2251
Sonoma
Hills east of Santa Rosa
Comment
CAS-BOT-BC363329
Senecio aronicoides
John Thomas Howell
1925-4-5
922
Marin
Pipeline Trail
Comment
CAS-BOT-BC363434
Senecio aronicoides
John Thomas Howell
1944-7-14
19762
Mendocino
Anthony Peak, east side
Comment
CAS-BOT-BC363562
Senecio clarkianus
John Thomas Howell
1924-7-29
580
Mariposa
At Indian Bridge, Wawona
1219
Comment
RSA15117
Senecio eurycephalus
J. T. Howell
1935-5-12
12626
Napa
Pope Creek Canyon one mile below Samuels Springs.
Comment
CAS-BOT-BC323171
Senecio flaccidus var. douglasii
John Thomas Howell
1927-11-27
3272
San Diego
2 miles S of Aguanga on road to Warner's Hot Springs
609
Comment
CAS-BOT-BC363918
Senecio integerrimus var. exaltatus
John Thomas Howell; T. C. Fuller; G. D. Barbe
1981-6-24
54238
Plumas
About 3 miles southeast of Mt. Hough on the road to Quincy
1737
Comment
RSA0013678
Senecio spartioides
J. T. Howell
1947-7-25
23632
San Bernardino
Near Dry Lake, San Bernardino Mts.
2774
Comment
CAS-BOT-BC364616
Senecio vulgaris
John Thomas Howell
1957-5-6
32224
San Francisco
San Francisco. Hunters Point
Comment
CAS-BOT-BC240122
Setaria pumila
John Thomas Howell
1959-9-20
34680
Butte
Eastern outskirts of Oroville
60
Comment
CAS-BOT-BC243651
Setaria pumila
John Thomas Howell
1967-11-3
44021
Tulare
Across Road 160 at NW corner, about 4.5 miles east-northeast of Pixley
83
Comment
CAS-BOT-BC240232
Setaria viridis
John Thomas Howell
1962-9-25
38914
Kern
Kernville
807
Comment
SDSU8177
Sidalcea malviflora subsp. asprella
D. F. Howe
1963-8-5
3699
Del Norte
9 miles south of CA-OR. state line on Sanger Reak Road, Siskiyou National Forest
1676
Comment
SD113827
Sidalcea malviflora subsp. dolosa
Darley F. Howe
1947-6-25
1646
San Bernardino
Rathbone Creek, San Bernardino Mountains.
Comment
CAS-BOT-BC384316
Silene bernardina
John Thomas Howell
1943-8-8
19186
Mendocino
Anthony Peak, Tehama-Mendocino Co.
Comment
SDSU3024
Silene californica
D. F. Howe
1963-7-4
3595
Mendocino
13.8 miles north of Ft. Bragg on #1.
Comment
CAS-BOT-BC387043
Silene gallica
John Thomas Howell
1952-7-11
28838
Del Norte
Crescent City
Comment
CAS-BOT-BC181339
Silene laciniata
John Thomas Howell
1928-4-21
3736
Ventura
Bluffs Point Mugu
Comment
RSA288
Silene laciniata subsp. major
J. T. Howell
1927-6-26
217
Orange
Claymine Canyon near Sierra Peak
305
Comment
CAS-BOT-BC389323
Silene lemmonii
John Thomas Howell
1962-7-9
38393
Kern
Near Park headquarters. Greenhorn Mountains
1798
Comment
CAS-BOT-BC389474
Silene lemmonii
John Thomas Howell
1944-8-14
20482
Tuolumne
Tuolumne Canyon above Glen Aulin
Comment
SD42680
Silene lemmonii
Darley F. Howe
1947-5-30
1654
Kern
Greenhorn Mountains.
2070
Comment
CAS-BOT-BC389619
Silene sargentii
John Thomas Howell
1946-7-20
22588
Fresno
Ridge south of Mono Rock
3596
Comment
CAS-BOT-BC389857
Silene sargentii
John Thomas Howell
1940-8-1
15867
Tulare
Between Reflection Lake and Harrison Pass
Comment
CAS-BOT-BC389885
Silene scouleri subsp. scouleri
John Thomas Howell
1957-6-30
32798
San Francisco
San Francisco. Summit ridge, Bayview Hills
Comment
CAS-BOT-BC389889
Silene scouleri subsp. scouleri
John Thomas Howell
1957-7-28
32823
San Francisco
San Francisco. Bayview Hills
Comment
CAS-BOT-BC175082
Silene verecunda
John Thomas Howell
1940-7-28
15635
Fresno
Near Sphinx Creek, Bubbs Creek
Comment
RSA201484
Silene verecunda subsp. platyota
J. T. Howell
1958-7-22
33713
Fresno
Simpson Meadow, Middle Fork of the Kings River.
1829
Comment
CAS-BOT-BC364834
Silybum marianum
John Thomas Howell
1963-5-18
39276
Monterey
2.5 miles south of Aromas
60
Comment
CAS-BOT-BC75265
Sisymbrium irio
John Thomas Howell
1967-11-4
44090
Tulare
From wild area south of reserve. Vernal pool natural area. About 4.5 miles east-northeast of Pixley.
83
Comment
CAS-BOT-BC135398
Sisyrinchium
John Thomas Howell
1962-6-15
37518
Butte
Magalia - Sierra Nevada
731
Comment
SD112454
Sisyrinchium bellum
Darley F. Howe
1935-3-17
154
San Diego
Otay.
Comment
NY826947
Solanum elaeagnifolium
J. T. Howell
1970-9-21
47231
Kern
The Sierra Nevada. 2.5 miles northwest of Woody.
Comment
CAS-BOT-BC156873
Solanum umbelliferum
J. T. Howell
1933-4-9
10979
Santa Cruz
[Ano] Ano Nuevo Pines
Comment
CAS-BOT-BC157231
Solanum umbelliferum
J. T. Howell
1930-5-14
5100
Kern
West slope of the Greenhorn Range above Glenville
1371
Comment
CAS-BOT-BC157527
Solanum umbelliferum
J. T. Howell
1925-2-8
749
Alameda
Strawberry [Canon] Canyon, Berkeley Hills
Comment
CAS-BOT-BC157540
Solanum umbelliferum
J. T. Howell
1945-5-13
20861
Marin
Deer Park (Near Fairfax)
Comment
CAS-BOT-BC157541
Solanum umbelliferum
J. T. Howell
1939-4-23
14606
Marin
Blythedale Canyon, Mill Valley
Comment
CAS-BOT-BC231708
Solanum umbelliferum
John Thomas Howell
1925-3-22
794
Alameda
Arroyo Mocho
Comment
CAS-BOT-BC422306
Soleirolia soleirolii
John Thomas Howell
1957-6-11
32613
San Francisco
San Francisco. Lone Mt.
Comment
CAS-BOT-BC365169
Solidago velutina subsp. californica
John Thomas Howell
1956-6-17
s.n.
San Francisco
Bayview Hills, San Francisco
Comment
CAS-BOT-BC374682
Sonchus oleraceus
John Thomas Howell
1957-5-26
32419
San Francisco
San Francisco. North base of Lone Mt.
Comment
RSA215968
Sonchus oleraceus
J. T. Howell
1957-6-16
32668
San Francisco
Third and Davidson streets.
Comment
CAS-BOT-BC157294
Sorbus californica
John Thomas Howell
1943-7-23
18730
Nevada
Between Donner Pass and West Lake
Comment
CAS-BOT-BC389916
Spergula arvensis
John Thomas Howell; Gordon H. True; Barbara T. Menzies; Roberta Shockey
1978-4-4
52735
Calaveras
Near Wallace
66
Comment
UCR88888
Spergularia atrosperma
J. T. Howell
1962-6-19
37866
Plumas
Sierra Nevada Mtns., 5.8 mi east of Beckworth.
1494
Comment
UC421589
Spergularia bocconi
John Thomas Howell
1929-4-18
4167
Merced
Merced
Comment
RSA0097865
Spergularia bocconi
J. T. Howell
1956-4-22
31252
San Francisco
Aquatic Park, San Francisco.
Comment
CAS-BOT-BC390347
Spergularia macrotheca var. macrotheca
John Thomas Howell
1945-6-3
20938
Marin
Shell Beach
Comment
SDSU4527
Spergularia marina
D. F. Howe
1941-3-22
1202
Imperial
Near Calipatria.
Comment
CAS-BOT-BC390562
Spergularia rubra
John Thomas Howell
1958-8-10
34265
Madera
Miller Meadow
2103
Comment
UCD99206
Spergularia villosa
John Thomas Howell
1944-6-25
19643
Marin
Santa Venetia.
7
Comment
CAS-BOT-BC391009
Spergularia villosa
John Thomas Howell
1945-5-9
20853
Marin
Between Ignacio and Novato
Comment
SD53336
Spiranthes romanzoffiana
Darley F. Howe
1962-8-15
3474
Fresno
Shaver Lake, Sierra National Forest, meadow.
1676
Comment
CAS-BOT-BC236687
Sporobolus airoides
John Thomas Howell; Gordon H. True
1967-5-31
42502
Tulare
Vernal pool natural area, about 4.5 miles east-northeast of Pixley, From S 1/3 area.
83
Comment
UCD93047
Sporobolus airoides
John Thomas Howell
1973-7-25
50015
Merced
Ingomar.
30
Comment
UC618587
Stachys albens
J. T. Howell
1938-7-17
13983
Solano
Suisun Marshes Suisun
Comment
SD129869
Stanleya pinnata
Melanie Howe, David K. Faulkner
1990-6-13
86
Inyo
Surprise Canyon
900
Comment
CAS-BOT-BC374834
Stebbinsoseris heterocarpa
John Thomas Howell
1963-5-5
39027
Monterey
Mustang Grade, west of Priest Valley
670
Comment
CAS-BOT-BC181424
Stellaria calycantha
John Thomas Howell
1940-8-4
15984
Tulare
Ouzel Basin
3200
Comment
RSA478142
Stellaria longipes
J. T. Howell
1947-8-8
23899
Inyo
Third to Fifth Lake, Big Pine Lakes.
3201
Comment
CAS-BOT-BC398265
Stellaria umbellata
John Thomas Howell
1949-8-10
26207
Tulare
Upper Soldier Lake
3413
Comment
CAS-BOT-BC398269
Stellaria umbellata
John Thomas Howell
1969-8-27
45989
Tulare
Near Mineral King in Glacial Valley below White Chief Mine
2895
Comment
CAS-BOT-BC516469
Stenanthium occidentale
John Thomas Howell
1939-8-5
15070
Siskiyou
Spirit Lake, Marble Mts.
1828
Comment
UC1042571
Stephanomeria exigua subsp. coronaria
John Thomas Howell
1950-8-29
27439
Inyo
Onion Valley road Sierra Nevada
2438
Comment
CAS-BOT-BC375417
Stephanomeria exigua subsp. coronaria
John Thomas Howell; Gordon H. True
1971-7-15
48537
Tulare
One Dome Lands Trail about 0.5 miles south of Church Dome, Kern Plateau
2316
Comment
CAS-BOT-BC322958
Stephanomeria tenuifolia
John Thomas Howell
1938-8-10
14465
Madera
Near Devil's Postpile
Comment
CAS-BOT-BC375766
Stephanomeria virgata
John Thomas Howell
1959-9-20
34717
Butte
Feather River Highway at West Branch bridge
Comment
SDSU3301
Stipa hymenoides
D. F. Howe
1947-5-4
1543
Los Angeles
Antelope Valley
Comment
SD112892
Stipa pulchra
Darley F. Howe
1935-4-7
196
San Diego
Mission Valley.
Comment
SD45759
Stipa speciosa
Darley F. Howe
1954-5-30
2379
Ventura
Lockwood Valley.
Comment
CAS-BOT-BC61167
Streptanthus batrachopus
John Thomas Howell
1939-5-14
14681
Marin
East of Collier Spring, Mount Tamalpais.
Comment
CAS-BOT-BC87151
Streptanthus glandulosus subsp. glandulosus
John Thomas Howell
1931-4-3
6120
Napa
Napa Range. Pope Creek Canyon, 8 miles from Monticello.
Comment
CAS-BOT-BC87257
Streptanthus glandulosus subsp. pulchellus
John Thomas Howell
1938-5-22
13791
Marin
San Anselmo Canyon.
Comment
CAS-BOT-BC87429
Streptanthus polygaloides
John Thomas Howell
1955-6-14
30460
Butte
Sierra Nevada. Magalia.
731
Comment
CAS-BOT-BC87522
Streptanthus tortuosus
John Thomas Howell
1963-7-12
39845
El Dorado
Sierra Nevada. Meyers.
1935
Comment
CAS-BOT-BC87523
Streptanthus tortuosus
John Thomas Howell
1963-7-12
39885
El Dorado
Sierra Nevada. 3 miles southwest of Twin Bridges on road to Kyburz.
1676
Comment
CAS-BOT-BC87908
Streptanthus tortuosus
John Thomas Howell
1965-9-13
41380
Tulare
Sierra Nevada. Generals Highway at Dorst Creek.
2042
Comment
GH422386
Streptanthus tortuosus
J. T. Howell
1964-4-27
40526
Unknown
El Portal
640
Comment
RSA88479
Streptanthus tortuosus
J. T. Howell
1951-7-20
28041
Tulare
Near little tarn east of Farewell Gap, Mineral King and vicinity.
3506
Comment
JEPS37782
Stylocline gnaphaloides
John Thomas Howell and R. C. Barneby
1954-5-11
29414
Madera
burn 2 mi w Oakhurst
670
Comment
CAS-BOT-BC48040
Styrax redivivus
John Thomas Howell
1940-6-30
15589
Lake
Soda Bay
Comment
CAS-BOT-BC234779
Symphoricarpos mollis
John Thomas Howell
1939-8-2
14947
Siskiyou
Spirit Lake, Marble Mts.
1828
Comment
CAS-BOT-BC238995
Symphoricarpos rotundifolius
John Thomas Howell
1969-9-14
46212
Mono
Leavitt Meadow
2194
Comment
CAS-BOT-BC239052
Symphoricarpos rotundifolius
John Thomas Howell
1951-7-17
27851
Tulare
Mineral King and Vicinity. White Chief Trail
2895
Comment
CAS-BOT-BC239075
Symphoricarpos rotundifolius
John Thomas Howell
1944-8-12
20425
Tuolumne
Gaylor Lakes
3261
Comment
SD42602
Symphoricarpos rotundifolius var. parishii
Darley F. Howe
1947-6-22
San Bernardino
South Big Bear.
Comment
SD42791
Symphyotrichum ascendens
Darley F. Howe
1947-8-28
San Bernardino
East fork Santa Ana River, below Big Meadows.
2195
Comment
SD64360
Symphyotrichum bracteolatum
Darley F. Howe
1966-8-26
Modoc
1.3 miles north of Lassen-Modoc County Line. East of Warner Mountains.
1340
Comment
CAS-BOT-BC98910
Symphyotrichum foliaceum var. parryi
John Thomas Howell; Gordon H. True
1970-7-30
47193
Tulare
Along Salmon Creek at norht end of Big Meadow - Kern Plateau
2377
Comment
CAS-BOT-BC98941
Symphyotrichum foliaceum var. parryi
John Thomas Howell
1939-8-7
15133
Siskiyou
Sky High Valley, Marble Mts.
1828
Comment
UC703208
Symphyotrichum spathulatum
J. Thomas Howell
1941-8-10
16929
Madera
Agnew Meadows
Comment
CAS-BOT-BC98254
Symphyotrichum subulatum var. parviflorum
John Thomas Howell
1981-10-13
54624
Sutter
Bobelaine Audubon Sanctuary, Feather River at mouth of Bear River
9
Comment
CAS-BOT-BC98262
Symphyotrichum subulatum var. parviflorum
John Thomas Howell
1967-11-3
44063
Tulare
Vernal pool nartural area, about 4.5 miles east-northeast of Pixley - near midpoint along west fence
83
Comment
SBBG92166
Tamarix aphylla
D. F. Howe
1980-9-21
San Bernardino
Interstate 15, 13 mi W of Baker
520
Comment
SBBG92174
Tamarix parviflora
D. F. Howe
1980-5-28
Inyo
Hwy 178, 2 mi E of Shoshone
430
Comment
SD128687
Tamarix ramosissima
Darley F. Howe
1980-4-13
Imperial
2 miles west of California-Arizona state line, on Highway 8. (IPB 10/07)
Comment
CAS-BOT-BC376989
Taraxacum officinale
John Thomas Howell
1960-8-20
36251
Tehama
Near Lassen Volcanic National Park. Morgan
1463
Comment
A355459
Taxus brevifolia
J. T. Howell
1937-7-26
13563
Unknown
Between Big Flat and Carbou Gulch, Siskiyou Co.
Comment
SDSU2035
Taxus brevifolia
D. F. Howe
1964-8-7
4128
Humboldt
8.2 miles from #96 on Mill Creek Road, Hoopa Valley.
1067
Comment
SDSU570
Tetradymia axillaris var. longispina
D. F. Howe
1948-5-3
1803
Los Angeles
1.5 miles south of Lancaster.
Comment
CAS-BOT-BC329025
Tetradymia canescens
John Thomas Howell
1928-6-15
3948
Inyo
near crest of Panamint Mountains above Surprise Canyon
2743
Comment
CAS-BOT-BC329029
Tetradymia canescens
John Thomas Howell
1949-7-17
25396
Inyo
Wonoga Peak
2743
Comment
CAS-BOT-BC329030
Tetradymia canescens
John Thomas Howell
1950-7-12
26669
Inyo
Sage Flat to Olancha Pass
2438
Comment
SDSU574
Tetradymia glabrata
D. F. Howe
1965-5-18
4051
Inyo
2.3 miles north of Big Pine on #395.
1219
Comment
CAS-BOT-BC340111
Tetradymia stenolepis
John Thomas Howell
1962-5-21
37149
Kern
Northeast of Lake Isabella
792
Comment
CAS-BOT-BC340110
Tetradymia stenolepis
John Thomas Howell
1962-7-12
38666
Kern
Northeast of Lake Isabella
914
Comment
CAS-BOT-BC438235
Tetragonia tetragonoides
John Thomas Howell
1944-6-25
19669
Marin
Between McNear's Landing and San Rafael
Comment
CAS-BOT-BC392332
Thalictrum fendleri
John Thomas Howell
1958-7-28
34073
Fresno
Trail between Simpson Meadow and Tehipite Valley, Middle Fork of the Kings River
1737
Comment
CAS-BOT-BC392353
Thalictrum fendleri
John Thomas Howell; Gordon H. True
1971-6-15
47803
Kern
Flying Dutchman Creek Canyon on Havilah - Mt. Breckenridge road
1249
Comment
CAS-BOT-BC392366
Thalictrum fendleri
John Thomas Howell
1938-8-8
14408
Mono
Mammouth [Mammoth] Lakes Basin
Comment
POM261551
Thalictrum sparsiflorum
J. T. Howell
1940-7-30
15700
Tulare
East Lake
2927
Comment
CAS-BOT-BC197363
Thinopyrum intermedium subsp. barbulatum
John Thomas Howell; Barbara T. Menzies; Roberta Shockey
1978-6-27
53124
Alpine
Canyon of East Fork of Carson River on road to Wolf Creek Meadows
1767
Comment
CAS-BOT-BC66539
Thysanocarpus curvipes
John Thomas Howell
1933-4-23
11123
San Benito
The Pinnacles.
Comment
CAS-BOT-BC66876
Thysanocarpus curvipes
John Thomas Howell; Gordon H. True
1968-5-14
44426
Tulare
Sierra Nevada. Kern Plateau. Cherry Hill Road, Brush Creek Canyon.
1219
Comment
CAS-BOT-BC88251
Thysanocarpus curvipes
John Thomas Howell
1933-5-14
11271
Contra Costa
Hills east of Saint Mary's College.
Comment
CAS-BOT-BC88458
Thysanocarpus curvipes
John Thomas Howell
1928-5-4
3767
Los Angeles
San Gabriel Mountains. Morrovia Canyon above the dam.
Comment
CAS-BOT-BC67048
Thysanocarpus laciniatus
John Thomas Howell
1931-3-22
5954
Monterey
Stone Canyon 8 miles east of Salinas Valley.
Comment
SD51331
Tiarella trifoliata var. unifoliata
Darley F. Howe
1961-7-31
3097
Humboldt
12 miles north of Garberville on #101
29
Comment
SEINET12044516
Tofieldia glutinosa
J. T. Howell
1937-1
13371
Siskiyou
South Fork of Salmon River near Big Flat
1524
Comment
HSC1601
Torreya californica
J. Wendell Howe
Aug 1930
Tuolumne
3 mi. W of Arch Rock, Yosemite
Comment
SEINET7295175
Torreyochloa pallida var. pauciflora
John Thomas Howell
1961-1
36934
Plumas
Feather River bed, Portola
1478
Comment
UCD93197
Torreyochloa pallida var. pauciflora
John Thomas Howell
1958-8-17
34540
Madera
Cora Lake.
2560
Comment
CAS-BOT-BC169214
Toxicodendron diversilobum
John Thomas Howell
1964-4-28
40618
Mariposa
2 miles east of Morman Bar - Sierra Nevada
670
Comment
UCD116989
Toxicodendron diversilobum
John Thomas Howell
1976-5-19
51758
Kern
Between Isabella Dam and Keysville, Greenhorn Mountains.
822
Comment
CAS-BOT-BC519555
Triantha occidentalis subsp. occidentalis
John Thomas Howell
1945-8-14
21407
Sonoma
Sonoma: Perry Marsh
Comment
CAS-BOT-BC438302
Trianthema portulacastrum
John Thomas Howell; Gordon H. True
1967-7-6
43241
Tulare
Along Road 160 south of reservation. About 4 1/2 miles east-northeast of Pixley
83
Comment
UCD107398
Tribulus terrestris
John Thomas Howell
1973-11-4
50320
Monterey
King City.
100
Comment
UCLA54744
Trichostema oblongum
John Thomas Howell
1937-7-21
13208
Trinity
Big Flat
Comment
SD62087
Trientalis latifolia
Darley F. Howe
1965-5-21
4061
Placer
Canyon, north side of American River between Forest Hill and Yankee Jims
914
Comment
UC575714
Trifolium albopurpureum var. dichotomum
John Thomas Howell
1935-4-11
12593
Alameda
Tesla Hills
Comment
UC1177201
Trifolium bifidum var. decipiens
John Thomas Howell
1943-5-9
17968
Marin
San Rafael Hills
Comment
SDSU5276
Trifolium dubium
D. F. Howe
1965-5-21
4066
Placer
Canyon on south side of north fork of American River between Forest Hill and Yankee Jims.
914
Comment
SD73200
Trifolium incarnatum
Darley F. Howe
1969-6-3
4623
Humboldt
13 miles north of Orick on Hwy 101
Comment
SD113235
Trifolium wormskioldii
Darley F. Howe
1936-7-1
390
San Diego
Laguna Mountains
Comment
SD113512
Triodanis biflora
Darley F. Howe
1958-5-25
2635
San Diego
Just east of Del Mar on east side of canyon
Comment
SEINET10459933
Triodanis perfoliata
Howell
Howell 27766
Plumas
FEATHER RIVER
Comment
CAS-BOT-BC199585
Trisetum canescens
John Thomas Howell
1951-8-21
28269
Sierra
Yuba Pass
2042
Comment
CAS-BOT-BC200123
Trisetum canescens
John Thomas Howell
1950-7-19
27802
Tulare
Bakeoven to Hessian Meadows
2529
Comment
CAS-BOT-BC193492
Trisetum cernuum
John Thomas Howell
1953-7-16
29122
Mendocino
In deep shade in canyon about 3 miles east of Point Arena.
Comment
CAS-BOT-BC200422
Trisetum spicatum
John Thomas Howell
1948-7-28
25098 A
Tulare
Center Basin
3657
Comment
CAS-BOT-BC200432
Trisetum spicatum
John Thomas Howell
1944-8-12
20391
Tuolumne
Gaylor Lakes
3291
Comment
CAS-BOT-BC200453
Trisetum wolfii
John Thomas Howell
1960-8-23
36445
Shasta
Lassen Loop above Little Hot Springs Valley
2407
Comment
SEINET12044746
Triteleia laxa
J. T. Howell
1931-1
6468
Contra Costa
Oakland Hills
Comment
CAS-BOT-BC528534
Triteleia peduncularis
John Thomas Howell
1957-5-19
32362
Stanislaus
Del Puerto Canyon
Comment
RSA216166
Triteleia peduncularis
J. T. Howell
1966-7-20
41986
Marin
John Thomas Howell Botanical Garden, Tiburon.
Comment
CAS-BOT-BC67494
Tropidocarpum gracile
John Thomas Howell
1930-5-12
4871
Los Angeles
1 mile north of Acton.
Comment
SD56793
Tsuga heterophylla
Darley F. Howe
1963-7-7
Humboldt
5 miles north of Orick on Highway #101
Comment
SDSU2008
Tsuga heterophylla
D. F. Howe
1963-7-7
3616
Humboldt
5 miles north of Orick on #101.
Comment
CAS-BOT-BC77671
Ulmus pumila
John Thomas Howell
1964-10-22
40966
Kern
Rosamond
Comment
CAS-BOT-BC91324
Umbellularia californica var. fresnensis
John Thomas Howell
1958-7-28
34069
Fresno
Sierra Nevada. Trail between Simpsons Meadow and Tehipite Valley, Middle Fork of the Kings River.
1676
Comment
SD112640
Uropappus lindleyi
Darley F. Howe
1964-5-18
3772
Kern
11.2 miles west of Lake Isabella on road to Glenville.
1460
Comment
CAS-BOT-BC403999
Urtica dioica subsp. holosericea
John Thomas Howell
1956-10-28
31939
San Francisco
San Francisco. Mountain Lake, Presidio
Comment
CAS-BOT-BC404100
Urtica dioica subsp. holosericea
John Thomas Howell
1962-7-7
38171
Kern
Kern River Canyon
518
Comment
CAS-BOT-BC404101
Urtica dioica subsp. holosericea
John Thomas Howell
1962-7-7
38152
Kern
Kern River Canyon
304
Comment
CAS-BOT-BC404105
Urtica dioica subsp. holosericea
John Thomas Howell
1960-3-25
35165
Kern
Cane Brake Creek, w. side Walker Pass
1341
Comment
CAS-BOT-BC404205
Urtica dioica subsp. holosericea
John Thomas Howell
1947-7-21
23454
San Bernardino
Lost Creek, San Bernardino Mts.
1920
Comment
RSA54068
Urtica dioica subsp. holosericea
J. T. Howell
1949-7-4
25354
Santa Cruz
Near Felton.
Comment
RSA22197
Urtica dioica subsp. holosericea
J. T. Howell
1938-8-2
13989
Placer
5 miles north of Brockway.
Comment
SEINET7271806
Vaccinium cespitosum var. paludicola
J. T. Howell
1958-7-20
33693
Fresno
Sierra Nevada, Granite Basin
3048
Comment
RSA22057
Vahlodea atropurpurea
J. T. Howell
1939-8-3
15003
Siskiyou
Spirit Lake, Marble Mountains.
1829
Comment
UC1042326
Valerianella locusta
John Thomas Howell
1954-4-26
29161
Trinity
between Weaverville and Douglas City
Comment
CAS-BOT-BC238181
Veronica wormskjoldii
John Thomas Howell
1947-8-5
23769
Inyo
Fifth Lake, Big Pine Lakes
3352
Comment
SD61009
Vicia americana subsp. oregana
Darley F. Howe
1964-8-1
3909
Lassen
Warner Mountains, Modoc National Forest, Parsnip Creek
1890
Comment
RSA480
Viola douglasii
J. T. Howell
1927-6-10
360
San Bernardino
Big Bear, San Bernardino Mts.
2043
Comment
SD53288
Viola ocellata
Darley F. Howe
1962-5-20
Mendocino
9.1 miles north of Willits on #101
366
Comment
CAS-BOT-BC270093
Viola pinetorum var. grisea
J. T. Howell
1950-7-17
27021
Tulare
Templeton Meadows
2590
Comment
CAS-BOT-BC270114
Viola pinetorum var. grisea
John Thomas Howell
1942-7-27
17277
Tulare
Between Mineral King and Timber Gap
Comment
CAS-BOT-BC198733
Vulpia bromoides
John Thomas Howell; Gordon True; Walter Knight; Irja Knight
1968-6-11
2387
Plumas
Butterfly Valley, valley proper - Sierra Nevada
Comment
CAS-BOT-BC183095
Vulpia microstachys var. ciliata
John Thomas Howell
1960-6-8
35478
Fresno
3 mi. westerly from Sequoia Lake
1402
Comment
CAS-BOT-BC183155
Vulpia microstachys var. ciliata
John Thomas Howell
1938-6-9
13909
Marin
Laurel Dell, Mt. Tamalpais
Comment
CAS-BOT-BC183159
Vulpia microstachys var. ciliata
John Thomas Howell
1945-5-27
20882
Marin
Northeast of Mountain Theater, Mt. Tamalpais
Comment
CAS-BOT-BC183168
Vulpia microstachys var. ciliata
John Thomas Howell
1964-4-28
40625
Mariposa
2 miles east of Morman Bar
670
Comment
CAS-BOT-BC199944
Vulpia microstachys var. ciliata
John Thomas Howell
1962-6-16
37562
Butte
Magalia
731
Comment
UCD93945
Vulpia microstachys var. confusa
John Thomas Howell
1963-5-6
39180
Monterey
Jolon. Santa Lucia Mountains.
298
Comment
CAS-BOT-BC183997
Vulpia microstachys var. microstachys
John Thomas Howell
1966-4-6
41458
Marin
John Thomas Howell Botanical Garden, Tiburon
Comment
UCD94544
Vulpia microstachys var. pauciflora
John Thomas Howell
1961-6-19
36518
Shasta
Lassen Volcanic National Park. Manzanita Lake.
1783
Comment
UCD94790
Vulpia myuros
John Thomas Howell; Gordon H. True, Margaret Williams
1973-5-12
49190
Lassen
Elysian Valley NW of Janesville.
1325
Comment
CAS-BOT-BC185715
Vulpia myuros subsp. megalura
John Thomas Howell
1956-4-16
31249
Alameda
Alameda, Pam St.
Comment
CAS-BOT-BC185915
Vulpia octoflora var. hirtella
John Thomas Howell
1946-5-12
21778
Marin
Carson Ridge
Comment
CAS-BOT-BC77769
Woodsia scopulina
John Thomas Howell
1942-8-3
17656
Tulare
Hamilton Lakes
3048
Comment
RSA44529
Woodsia scopulina
J. T. Howell
1947-8-9
23946
Inyo
Fifth Lake. Big Pine Lakes
3354
Comment
CAS-BOT-BC383540
Wyethia mollis
John Thomas Howell
1962-6-17
37714
Plumas
Portola
1463
Comment
CAS-BOT-BC383541
Wyethia mollis
John Thomas Howell
1961-6-21
36651
Plumas
Greenville
1097
Comment
SEINET7297581
X Stiporyzopsis bloomeri
John Thomas Howell
1962-1
37841
Plumas
The Buttes, n. Sierra Valley
1494
Comment
CAS-BOT-BC383630
Xanthium spinosum
John Thomas Howell
1954-9-6
30083
Calaveras
3 miles se. of Angels Camp
Comment
CAS-BOT-BC383647
Xanthium spinosum
John Thomas Howell; H. Keith Wagnon
1980-5-27
53683
Plumas
Quincy
1051
Comment
CAS-BOT-BC530473
Zigadenus fontanus
John Thomas Howell
1966-7-20
41984
Marin
John Thomas Howell Botanical Garden, Tiburon
Comment
CAS-BOT-BC533132
Zigadenus paniculatus
John Thomas Howell
1961-6-21
36645
Plumas
Sierra Nevada, Greenville
1097
Comment