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Specimen ID
Determination *
Collector
Collection Date
Collection Number
County
Locality
Elevation in meters
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CAS-BOT-BC421693
Ceanothus thyrsiflorus
C. Kellner; L. Hasz; C. Casey; P. Scott; D. Greenberger
2014-5-10
14628
Marin
Mount Tamalpais. Marin Municipal Water District lands: Across the bridge from Leo T. Cronin Fish Viewing Area, up road from gate along Lower Peters Dam Road.
Comment
CAS-BOT-BC52926
Ceanothus thyrsiflorus
Gordon H. True
4849
Marin
Pt. Reyes Bird Observatory 3 mi. NW. of Bolinas at Arroyo Honda
60
Comment
CAS-BOT-BC52927
Ceanothus thyrsiflorus
Nora Pettibone
1894-5-8
s.n.
Marin
Mill Valley
Comment
CAS-BOT-BC52928
Ceanothus thyrsiflorus
Lester Rowntree
1930-7-17
s.n.
Marin
Point Reyes
Comment
CAS-BOT-BC52929
Ceanothus thyrsiflorus
Milo S. Baker
1929-7-16
3625 a
Marin
Lighthouse Road west Inverness
Comment
CAS-BOT-BC52930
Ceanothus thyrsiflorus
W. W. Carruth
1901-3-1
s.n.
Marin
Tamalpais
Comment
CAS-BOT-BC52932
Ceanothus thyrsiflorus
Alice Eastwood
1922-5-6
11310
Marin
Mt. Tamalpais
Comment
CAS-BOT-BC52933
Ceanothus thyrsiflorus
Alice Eastwood
1913-6-15
3408
Marin
Mt. Tamalpais
Comment
CAS-BOT-BC52934
Ceanothus thyrsiflorus
Alice Eastwood; John Thomas Howell
1939-5-28
7382
Marin
Pt. Reyes Lighthouse
Comment
CAS-BOT-BC52935
Ceanothus thyrsiflorus
John Thomas Howell
1927-4-23
2349
Marin
In canyon just to east of Muir Woods along Murir Woods-Mill Valley Road.
121
Comment
CAS-BOT-BC52936
Ceanothus thyrsiflorus
John Thomas Howell
1949-5-15
25315
Marin
Inverness Ridge w. of Inverness
Comment
CAS-BOT-BC52937
Ceanothus thyrsiflorus
John Thomas Howell
1930-12-28
5714
Marin
Lower slopes of Mt. Tamalpais, Mill Valley
Comment
CAS-BOT-BC52956
Ceanothus thyrsiflorus
James I. McMurphy
1906-4-14
s.n.
Marin
Mt. Tamalpais
Comment
CAS-BOT-BC52957
Ceanothus thyrsiflorus
Peter H. Raven; Michael P. Johnson
1967-5-1
21186
Marin
Angel Island - On sout ridge of Mount Ida
237
Comment
CAS-BOT-BC52958
Ceanothus thyrsiflorus
R. S. Ferris; Ira L. Wiggins
1935-7-19
8110
Marin
Summit of divide between Inverness and Point Reyes Lighthouse 2.5 mi. from Inverness.
Comment
CAS-BOT-BC52959
Ceanothus thyrsiflorus
Beryl O. Schreiber
1936-3-7
2134
Marin
Tomales Ridge, west of Tomales Bay
Comment
CAS-BOT-BC52960
Ceanothus thyrsiflorus
Brandegee
1890-5-1
17
Marin
Mt. Tamalpais
Comment
CAS-BOT-BC52961
Ceanothus thyrsiflorus
Brandegee
1890-5-1
64
Marin
Tamalpais
Comment
CAS-BOT-BC52962
Ceanothus thyrsiflorus
Brandegee
1890-5-1
18
Marin
Bolinas Heights
Comment
CAS-BOT-BC52963
Ceanothus thyrsiflorus
H. E. McMinn
1922-6-6
142
Marin
Bolinas Ridge
Comment
CAS-BOT-BC52964
Ceanothus thyrsiflorus
H. E. McMinn
1923-3-30
902
Marin
Bolinas Ridge - east end near Alpine Summit
Comment
CAS-BOT-BC52965
Ceanothus thyrsiflorus
H. E. McMinn
1922-12-27
424
Marin
Near Lagunitas
Comment
CAS-BOT-BC52966
Ceanothus thyrsiflorus
H. E. McMinn
1922-12-27
422 A
Marin
Near Lagunitas
Comment
CAS-BOT-BC52967
Ceanothus thyrsiflorus
Miss Grimwood
1922-1-1
387
Marin
Mt. Tamalpais
Comment
CAS-BOT-BC52968
Ceanothus thyrsiflorus
A. A. Heller; H. E. Brown
1902-3-7
5004
Marin
South side of Mt. Tamalpais
Comment
CAS-BOT-BC52969
Ceanothus thyrsiflorus
H. A. Lewis
1908-4-12
s.n.
Marin
Mt. Tamalpais
Comment
CAS-BOT-BC52970
Ceanothus thyrsiflorus
C. Hart Merriam
1910-8-4
s.n.
Marin
Lagunitas
Comment
CAS-BOT-BC52971
Ceanothus thyrsiflorus
C. Hart Merriam
1918-9-4
s.n.
Marin
Lagunitas
Comment
CAS-BOT-BC52972
Ceanothus thyrsiflorus
Arthur Menzies; Barbara Menzies
1969-5-11
s.n.
Marin
Marshall
Comment
CAS-BOT-BC52973
Ceanothus thyrsiflorus
Catherine A. Toschi
1963-2-17
63 :9
Marin
Three miles northeast of Inverness (two miles up Mount Vision Road)
152
Comment
CAS-BOT-BC52974
Ceanothus thyrsiflorus
Elsa G. Ruckert
1960-4-13
88
Marin
Roadside, county road west from marshall leading to Olema, 1/2 mile from junction with Tomales Road.
15
Comment
CAS-BOT-BC52975
Ceanothus thyrsiflorus
Gordon H. True; Fred Ross
1969-5-30
5040
Marin
Pt. Reyes Bird Observatory 3 mi. NW. of Bolinas at Arroyo Honda
182
Comment
CDA6130
Ceanothus thyrsiflorus
D. G. Kelch
2006-5-1
6 .18
Marin
Lucas Valley Rd.
Comment
CHSC22532
Ceanothus thyrsiflorus
Robert A. Schlising; Glenn Keator
1962-2-18
2060
Marin
Along Sir Francis Drake Highway, 8 mi W of Jct with Pierce Point Road.
Comment
JEPS127840
Ceanothus thyrsiflorus
Adam C. Schneider with Robert Steers
2014-3-29
544
Marin
Coastal Trail, 0.2 miles below intersection with Wolf Ridge Trail.
Comment
JEPS35806
Ceanothus thyrsiflorus
Rimo Bacigalupi and L. R. Heckard
1964-4-29
8941
Marin
ca 3 mi ne Point Reyes (slopes e of Drakes Beach)
Comment
JEPS42145
Ceanothus thyrsiflorus
W. L. Jepson
1914-1-9
5708
Marin
Mt. Tamalpais
Comment
JEPS42152
Ceanothus thyrsiflorus
W. L. Jepson
1892-9-9
14006
Marin
Mt. Tamalpais
Comment
JEPS76974
Ceanothus thyrsiflorus
Robert M. Lloyd
1963-3-10
2096
Marin
on Pt. Reyes Road 2 mi from Inverness; 2 mi from Inverness on Pt. Reyes Road
Comment
JEPS77220
Ceanothus thyrsiflorus
Robert M. Lloyd
1963-4-24
2362
Marin
5.8 mi s Fairfax (on Bolinas Rd)
274
Comment
POM222025
Ceanothus thyrsiflorus
W. C. Merrill
1895-05
s.n.
Marin
Tamalpias
Comment
POM259269
Ceanothus thyrsiflorus
Alice Eastwood, John T. Howell
1939-5-28
7382
Marin
Point Reyes Lighthouse
Comment
RSA1128
Ceanothus thyrsiflorus
B. D. Stark
1929-7-22
1402
Marin
Muir Woods.
152
Comment
RSA15229
Ceanothus thyrsiflorus
Carl B. Wolf
1927-4-24
387
Marin
Stinson Beach.
Comment
RSA178048
Ceanothus thyrsiflorus
Robert F. Thorne
1965-4-21
34416
Marin
Near confluence of Lagunitas and Nicasio Creeks.
30
Comment
RSA252258
Ceanothus thyrsiflorus
Gary D. Wallace
1974-12-26
1369
Marin
Mt. Tamalpais St. Pk. off Panoramic Hwy. SE of West Point between Spike Buck Ck. and Laguna Ck.
396
Comment
RSA285652
Ceanothus thyrsiflorus
D. C. Michener
1982-7-25
4109
Marin
Bolinas Ridge, along firebreak off of Fairfax-Bolinas Road, 0.5 mile west of summit jct with Ridgecrest Road.
Comment
RSA355700
Ceanothus thyrsiflorus
Dave Kelly, Walter Wisura
1953-7-25
4125
Marin
0.5 miles up bolinas Ridge Road from Bolinas
Comment
RSA398955
Ceanothus thyrsiflorus
Bonnie C. Templeton
1957-6-27
s.n.
Marin
Bolinas Ridge.
Comment
RSA613696
Ceanothus thyrsiflorus
Joseph A. Ewan
1936-1-1
9384
Marin
1/2 miles E US naval Station on Point Reyes road.
Comment
RSA633338
Ceanothus thyrsiflorus
Michael A. Vincent, Ethan H. Freid
1998-4-8
8178
Marin
2 miles S of Tomales along Route 1
Comment
RSA89830
Ceanothus thyrsiflorus
P. A. Munz
1954-7-29
19892
Marin
Slope of Mt. Vision, west of Iverness.
Comment
SD64383
Ceanothus thyrsiflorus
D. F. Howe
1966-6-1
Marin
1 mile west of Inverness, Point Reyes Peninsula
60
Comment
SD84938
Ceanothus thyrsiflorus
Lois R. O Brien
1963-2-9
8
Marin
Inverness Ridge, 1 mile southeast Inverness, F.P. Meyer property
600
Comment Read comments Nov 19 2012
SDSU10425
Ceanothus thyrsiflorus
D. F. Howe
1966-6-1
4258
Marin
1.0 mile west of Inverness. Pt. Reyes Peninsula.
61
Comment
SEINET6051563
Ceanothus thyrsiflorus
Unknown
1990-8-12
6339 B
Marin
Point Reyes National Seashore, Rocky hillsides near the Lighthouse area.
Comment
UC1071393
Ceanothus thyrsiflorus
N. French
1935-4-2
601
Marin
along coast; Tamalpais Quad., along coast
Comment
UC1071394
Ceanothus thyrsiflorus
B. Schreiber
1936-4-12
2199
Marin
1.6 mi sse Pierce's Ranch; Point Reyes Quad., sse of Pierce's Ranch
7
Comment
UC1071417
Ceanothus thyrsiflorus
A. E. Wieslander
1934-3-18
402
Marin
2 miles N. W. of Inverness
152
Comment
UC1281280
Ceanothus thyrsiflorus
H. E. McMinn
1938-6-19
5154
Marin
Pt. Reyes lighthouse, Marin Co.
Comment
UC1324891
Ceanothus thyrsiflorus
H. U. Stauffer and E. Molseed
1964-5-17
5935
Marin
11 km w Fairfax (Alpine Lake); , w of Fairfax
200
Comment
UC1614434
Ceanothus thyrsiflorus
Charles M. Belshaw
1936-1-1
1440
Marin
away from sea Pt. Reyes Headlands
Comment
UC1614656
Ceanothus thyrsiflorus
Charles M. Belshaw
1934-3-18
52
Marin
3 1/2 mi. w. Mill Valley (fire trail off of Lee St., top of ridge)
Comment
UC18435
Ceanothus thyrsiflorus
Michener and Bioletti
April, 1892
Marin
Tamalpais
Comment
UC191511
Ceanothus thyrsiflorus
Edward Lee Greene
1886-3-20
Marin
Angel Island
Comment
UC452664
Ceanothus thyrsiflorus
I. J. Condit
1913-4-8
Marin
slope above Muir Woods; slope above Muir Woods
Comment
UC54902
Ceanothus thyrsiflorus
E. R. Drew
1889-5-18
Marin
Tomales Bay
Comment
UC589384
Ceanothus thyrsiflorus
Beryl O. Schreiber
1932-6-17
502
Marin
Waterfall Beach Tomales Bay, Waterfall Beach
Comment
UC608456
Ceanothus thyrsiflorus
Beryl O. Schreiber
1936-4-12
2199
Marin
1.6 mi sse Pierce's Ranch; Tomales Point, sse of Pierce's Ranch
Comment
UC615001
Ceanothus thyrsiflorus
Beryl O. Schreiber
1936-3-7
2135
Marin
w Tomales Bay (Tomales Ridge); w of Tomales Bay, Tomales Ridge
Comment
UC615002
Ceanothus thyrsiflorus
Beryl O. Schreiber
1936-3-7
2134
Marin
w Tomales Bay; w of Tomales Bay, Tomales Ridge
Comment
UC634575
Ceanothus thyrsiflorus
Herbert L. Mason
1926-2-21
2651
Marin
Inverness
Comment
UC766010
Ceanothus thyrsiflorus
R. F. Hoover
1938-9-18
3853
Marin
Tomales Point
Comment
UC79925
Ceanothus thyrsiflorus
Katharine Brandegee
1890-5
17
Marin
Tamalpais
Comment
UC79926
Ceanothus thyrsiflorus
Katharine Brandegee
1890-5-2
Marin
Bolinas Ridge
Comment
UC79928
Ceanothus thyrsiflorus
Katharine Brandegee
1890-5
17
Marin
Tamalpais
Comment
UC870659
Ceanothus thyrsiflorus
Lewis S. Rose
1937-4-25
37232
Marin
S slope, Mountain Tamalpais
304
Comment
UC870662
Ceanothus thyrsiflorus
Alice Eastwood, John Thomas Howell
1939-5-28
7382
Marin
Point Reyes lighthouse
Comment
UCD112714
Ceanothus thyrsiflorus
Collector unknown
1925-6-5
1784
Marin
location unknown.
Comment
UCD112717
Ceanothus thyrsiflorus
J. Buck
1996-5-27
19
Marin
Point Reyes at the intersection of Mt. Vision Road and Sir Francis Drake Highway.
79
Comment
UCR198221
Ceanothus thyrsiflorus
Dean Kelch
2006-5-10
06 .180
Marin
Lucas Valley Road
99
Comment
UCR20569
Ceanothus thyrsiflorus
H. M. Whistler
1966-3-17
s.n.
Marin
San Francisco Bay Region, Muir Woods Road, 0.8 mi. east of entrance to Muir Woods National Monument
91
Comment
CAS-BOT-BC52931
Ceanothus thyrsiflorus
N. J. Andersson
1852-1-1
s.n.
Marin
Coloma
Comment
HSC85818
Ceanothus thyrsiflorus
Sandy Floyd, Tom Munton, T'ai Roulston
1987-3-13
33
Marin
Hwy. 1 mile marker 40
Comment
RSA188733
Ceanothus thyrsiflorus
H. U. Stauffer
1964-5-17
5935
Marin
11 km w of Fairfac.
200
Comment
RSA396203
Ceanothus thyrsiflorus
F. H. Utech, I. Knight, Walter Knight
1984-4-18
84 -124
Marin
Marshall Petaluma Road from Pentulama to Hwy 1, 8 miles E of jct with Hwy1.
107
Comment
SDSU10424
Ceanothus thyrsiflorus
Claire Schneider, Gary Waayers
1993-4-9
9 IV93B
Marin
Growing on low hillside, north-facing slope, in the sinlight, less than one mile from the coast. Very marine influence. Associated with grasses and Baccharis sp. Located off of State Hwy 1 at mile marker 4.5 in Marin County. elevation 60m.
60
Comment Read comments May 9 2008
SEINET12209979
Ceanothus thyrsiflorus
E. H. Graham
1931-1
6826
Marin
Camp near Blacksmith Shop, Pt. Reyes
Comment
SEINET12209980
Ceanothus thyrsiflorus
M. T. Doutt
1931-1
463
Marin
4 mi W Inverness
Comment
SEINET12209981
Ceanothus thyrsiflorus
M. T. Doutt
1931-1
367
Marin
Alpine Dam
Comment
SEINET12210789
Ceanothus thyrsiflorus
W. Knight, Knight, I.
1982-1
4510
Marin
Tilden Botanic Garden, Berkeley
Comment
SEINET12210791
Ceanothus thyrsiflorus
W. Knight, Knight, I.
1982-1
4512
Marin
Tilden Botanic Garden, Berkeley
Comment
SEINET12210803
Ceanothus thyrsiflorus
W. Knight, Knight, I.
1982-1
4665
Marin
Tilden Botanic Garden, Berkeley
Comment
SEINET12210994
Ceanothus thyrsiflorus
F. H. Utech, Knight, W.; Knight, I.
1984-1
84 -124
Marin
Marshall-Petaluma Road from Petaluma to CA 1, 8 mi E of junction CA 1
107
Comment
SEINET13946098
Ceanothus thyrsiflorus
Lewis S. Rose
1947-1
47109
Marin
Sausalito, alt ca 400 ft
122
Comment
UCSB19022
Ceanothus thyrsiflorus var. griseus
Tom, Bennett
1965-4-15
Marin
road leading to Stinson Beach, 1 mile W of entrance to Muir Woods National Monument, 17 miles N of San Francisco
18
Comment
UC657901
Ceanothus thyrsiflorus var. repens
H. E. McMinn
1938-6-19
5154
Marin
Point Reyes Lighthouse Point Reyes; Point Reyes Lighthouse, Marin Co.
Comment
JEPS108617
Ceanothus thyrsiflorus var. repens
Roger Raiche
1 .93
Marin
Chimney Rock, Point reyes
30
Comment
SEINET12210704
Ceanothus thyrsiflorus var. repens
W. Knight, Knight, I.
1982-1
4689
Marin
From Tilden Botanic Garden in Berkeley
Comment
SBBG26916
Ceanothus thyrsiflorus var. thyrsiflorus
A. Eastwood, J. T. Howell
1939-5-28
Marin
Point Reyes Lighthouse
Comment
SBBG4545
Ceanothus thyrsiflorus var. thyrsiflorus
M. Van Rensselaer
1939-4-30
1024
Marin
point above Light House, Pt Reyes
Comment
SBBG50601
Ceanothus thyrsiflorus var. thyrsiflorus
T. Staver
1971-5-27
12
Marin
town of Inverness
Comment
UCD112730
Ceanothus thyrsiflorus var. thyrsiflorus
Beecher Crampton
1954-4-28
1820
Marin
3/4 mile east of Point Reyes Lighthouse.
Comment
UCD36556
Ceanothus thyrsiflorus var. thyrsiflorus
Beecher Crampton
1954-4-28
1820
Marin
On Point Reyes Peninsula, 3/4 mile east of Point Reyes Lighthouse.
Comment
RSA0093434
Ceanothus thyrsiflorus var. thyrsiflorus
Bonnie C. Templeton
1957-6-27
s.n.
Marin
Bolinas Ridge.
Comment