SRP
18364 A. D. Elmer 4321 1903-05-00
U.S.A., California, Contra Costa, Walnut Creek.
SRP
18441 K. L. Chambers 449 1953-04-25
U.S.A., California, Contra Costa, Balfour Road, 4 mi. W Brentwood and 1.8 mi. E jct. Antioch-B.
SRP
16942 A. D. Elmer 4316 1903-05-00
U.S.A., California, Contra Costa, Walnut Creek.
SRP
19589 A. D. Elmer 4318 1903-05-00
U.S.A., California, Contra Costa, Mt. Diablo.
SRP
20530 A. D. Elmer 4327 1903-05-00
U.S.A., California, Contra Costa, Mt. Diablo.
SRP
16790 A. D. E. Elmer 4955 1903-07-00
U.S.A., California, Contra Costa, Mount Diablo.
SRP
32092 Barbara Ertter 10072 1991-06-01
U.S.A., California, Contra Costa, Las Trampas Regional Wilderness in hills W of Danville, paved portion of Rocky Ridge Trail ca 1 from parking lot, 37.821667 -122, 488m
SRP
32750 B. Ertter, Elizabeth Neese 7975 1988-10-15
U.S.A., California, Contra Costa, W of I-580 in El Cerrito, W side along Rydin Road N of Central Avenue., 37.915833 -122.311667
SRP
32834 B. Ertter, David Gowen 19808 2010-03-10
U.S.A., California, Contra Costa, Miller-Knox Regional Shoreline on south edge of Point Richmond, West Ridge Trail, 37.909722 -122.390556
SRP
34352 B. Ertter 10909 1992-03-08
U.S.A., California, Contra Costa, NE edge of Black Diamond Mines Regional Preserve; ca 1/2 mi W of junction of Stewartville Trail and Frederickson Lane, 37.950278 -121.856944
SRP
35300 M. van Slyke s.n. 1959-04-17
U.S.A., California, Contra Costa, Las Vegas Road; Orinda, 37.877222 -122.179722
SRP
34871 C. Davidson, B. Ertter, S. Christoph 11831 2011-04-23
U.S.A., California, Contra Costa, Mount Diablo State Park. North Gate Road, about at the west end of Long Ridge., 37.883889 -121.971944, 223m
SRP
35468 B. Ertter, David Gowen 19807 2010-03-10
U.S.A., California, Contra Costa, Miller-Knox Regional Shoreline on south edge of Point Richmond, West Ridge Trail, 37.909722 -122.390556
SRP
35470 B. Ertter, Jim Dunne, David Gowen, Lech Naumovich 19792 2009-12-03
U.S.A., California, Contra Costa, Mudflats at upper (south) end of San Pablo Dam Reservoir northwest of Orinda, 37.91 -122.227, 90m
SRP
35514 C. Davidson 11733 2010-04-06
U.S.A., California, Contra Costa, Oakland Hills Huckleberry Botanic Regional Preserve., 37.840806 -122.191222, 311m
SRP
35571 C. Davidson, B. Ertter 11798 2010-09-01
U.S.A., California, Contra Costa, Mt. Diablo. Road to the summit., 37.863667 -121.92725, 900m
SRP
36671 C. Davidson, B. Ertter
U.S.A., California, Contra Costa, detailed locality information protected
SRP
37237 C. Davidson, B. Ertter 11798 2010-09-01
U.S.A., California, Contra Costa, Mt. Diablo. Donner Canyon. N side of Mt. Diablo State Park (Regency Dr. access)., 37.913444 -121.922861, 191m
SRP
44710 D.G. Kelch, A.G. Murdock 04.119 2004-04-25
U.S.A., California, Contra Costa, Carquinez Strait: W of Martinez along Carquinez Scenic Dr., 38.026667 -122.151389, 152m
SRP
40431 C. Davidson, B. Ertter 11793 2010-09-01
U.S.A., California, Contra Costa, Mt. Diablo. Donner Canyon. N side of Mt. Diablo State Park. (Regency Dr. access.), 37.913444 -121.922861, 191m
SRP
41167 C. Davidson, B. Ertter 11799 2010-09-01
U.S.A., California, Contra Costa, Mt. Diabolo. Road to the summit., 37.863667 -121.927222, 900m
SRP
41819 B. Ertter, Jim Dunne, David Gowen, Lech Naumovich 19795 2009-12-03
U.S.A., California, Contra Costa, At upper (south) end of San Pablo Dam Reservoir northwest of Orinda, 37.91 -122.227, 90m
SRP
42563 B. Ertter, Brad Olson 10838 1991-09-28
U.S.A., California, Contra Costa, San Pablo Reservoir between Orinda and El Sobrante, 37.943333 -122.261667, 91m
SRP
42898 B. Ertter, Brad Olson 12202 1993-08-08
U.S.A., California, Contra Costa, Bishop Ranch Regional Open Space southwest of San Ramon, 37.771667 -121.973056
SRP
48881 Barbara Ertter, California Botanical Society field trip 21310 2013-04-12
U.S.A., California, Contra Costa, Mount Diablo State Park southeast of Walnut Creek, Knobcone Point Road east of Curry Point., 37.851 -121.924, 540m
SRP
49331 K. Thorne, L. Thorne, N. Thorne, J. Chandler 4976 1986-07-27
U.S.A., California, Contra Costa, Franks Tract, along San Joaquin River delta. Sand Mound Slough. SE portion of Bethel Slough., 610m
SRP
49957 B. Ertter, Travis Columbus 9110 1990-06-10
U.S.A., California, Contra Costa, NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill, on Spengler Trail NE of Briones Peak., 183m
SRP
49965 B. Ertter 17412 2000-07-16
U.S.A., California, Contra Costa, Turtle Rock Ponds on east side of Pine Creek, west side of Mount Diablo., 305m
SRP
50042 B. Ertter, Holly Forbes 15546 1997-04-20
U.S.A., California, Contra Costa, North base of Mount Diablo, trail to Back Creek from Mitchell Canyon trailhead.
SRP
50043 B. Ertter, Holly Forbes 15547 1997-04-20
U.S.A., California, Contra Costa, North base of Mount Diablo, trail to Back Creek from Mitchell Canyon trailhead.
SRP
50047 B. Ertter 17536 2000-09-30
U.S.A., California, Contra Costa, West side Mount Diablo, Briones-Mount Diablo Trail ca 1 mile NW of Macedo Ranch staging area., 274m
SRP
50048 B. Ertter, Dan Norris 17575 2001-04-08
U.S.A., California, Contra Costa, Lime Ridge Open Space east of Walnut Creek, ca 1/2 mile east of Valley Vista trailhead., 183m
SRP
50050 B. Ertter, Mary Bowerman 17619 2001-04-28
U.S.A., California, Contra Costa, Clayton Ranch (East Bay Regional Parks) on north side of Marsh Creek Road east of Mount Diablo.
SRP
50051 B. Ertter, John Ginochio and Mary Bowerman 17631 2001-05-08
U.S.A., California, Contra Costa, Northwest flank of Mount Diablo, Ginochio property north of park boundary, road through serpentine chaparral on Long Ridge.
SRP
50052 B. Ertter, Dorothy Frantz 17642 2001-05-10
U.S.A., California, Contra Costa, Pine Canyon on west side of Mount Diablo, junction of Stage Road and Sunset Trail.
SRP
50055 B. Ertter, B. Olson, D. Lake, L. Hosley, & A. Youngson 10866 1991-10-20
U.S.A., California, Contra Costa, Dow Wetlands Preserve, just W of Antioch marina.
SRP
50067 B. Ertter 17413 2000-07-16
U.S.A., California, Contra Costa, Turtle Rock Ponds on east side of Pine Creek, west side of Mount Diablo., 305m
SRP
50068 B. Ertter, Delia Taylor 18226 2003-06-22
U.S.A., California, Contra Costa, Black Diamond Mines Regional Preserve south of Pittsburg, ridge south of Arata Overlook Trail NE of park headquarters east of Somerville Road., 229m
SRP
50071 B. Ertter 17380 2000-07-16
U.S.A., California, Contra Costa, Diablo Foothills Regional Park, along Pine Creek between Castle Rock Regional Recreation Area and flood-control checkdam., 107m
SRP
50073 B. Ertter 18079 2002-11-11
U.S.A., California, Contra Costa, Round Valley Regional Preserve east of Mount Diablo, alkaline spring on Murphy's Meadow Trail at north end of Round Valley., 122m
SRP
50075 B. Ertter, Dan Norris 16849 1999-11-14
U.S.A., California, Contra Costa, Black Diamons Mines Regional Preserve, south of parking area for Somersville townsite.
SRP
50084 B. Ertter, Tony Morosco 16364 1998-07-11
U.S.A., California, Contra Costa, North base of Mount Diablo, margin of small pond on north side of Bruce Lee Road east of Mitchell Canyon staging area., 183m
SRP
50086 B. Ertter, Richard K. Brummitt 16098 1998-05-06
U.S.A., California, Contra Costa, Antioch Marina.
SRP
50087 B. Ertter, Christopher Baysdorfer 16112 1998-05-10
U.S.A., California, Contra Costa, Lime Ridge Open Space northwest of Mount Diablo, sandy roadbed of Ohlone Trail.
SRP
50088 B. Ertter, Christopher Baysdorfer 16120 1998-05-10
U.S.A., California, Contra Costa, Lime Ridge Open Space northwest of Mount Diablo, quarry area on west side.
SRP
50089 B. Ertter, Richard K. Brummitt 16131 1998-05-13
U.S.A., California, Contra Costa, Summit Road on Mount Diablo, base of rock outcrop/roadcut above Juniper Camp.
SRP
50091 B. Ertter, Chris Thayer 15371 1996-10-25
U.S.A., California, Contra Costa, Northwest flank of Mount Diablo, "Tick Pond" at arc of Falcon Road between North Gate Road and Castle Rock., 183m
SRP
50094 B. Ertter, Tony Morosco 15998 1998-04-12
U.S.A., California, Contra Costa, Base of Mount Olympia on north side of Mount Diablo, talus above quarry NE of Olympia Trail., 488m
SRP
50095 B. Ertter, Tony Morosco 16000 1998-04-12
U.S.A., California, Contra Costa, Base of Mount Olympia on north side of Mount Diablo, steep NE-facing slope above quarry NE of Olympia Trail, with numerous outcrops., 518m
SRP
50096 B. Ertter 16036 1998-05-03
U.S.A., California, Contra Costa, Above SW fork of Pine Creek at southwest base of Mount Diablo., 244m
SRP
50097 B. Ertter 16058 1998-05-03
U.S.A., California, Contra Costa, Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo, bottom of dried pools., 274m
SRP
50098 B. Ertter 16059 1998-05-03
U.S.A., California, Contra Costa, Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo, 274m
SRP
50099 B. Ertter 15926 1998-03-01
U.S.A., California, Contra Costa, Diablo Foothills Regional Park, Ridge Trail on ridge east of Old Borges Ranch.
SRP
50100 B. Ertter 15928 1998-03-07
U.S.A., California, Contra Costa, Southwest side of Mount Diablo, west-most knoll on Fossil Ridge, at end of fire road., 488m
SRP
50101 B. Ertter 15932 1998-03-07
U.S.A., California, Contra Costa, Dan Cook Canyon on southwest side of Mount Diablo.
SRP
50102 B. Ertter 15956 1998-04-04
U.S.A., California, Contra Costa, Shell Ridge Open Space northwest of Mount Diablo, summit of northwestern-most ridge.
SRP
50103 B. Ertter 15959 1998-04-04
U.S.A., California, Contra Costa, Shell Ridge Open Space northwest of Mount Diablo, west base of northwestern-most ridge.
SRP
50105 B. Ertter 15965 1998-04-04
U.S.A., California, Contra Costa, Shell Ridge Open Space northwest of Mount Diablo, east side of rocky knoll between northwestern-most ridge and Indian Valley School.
SRP
50106 B. Ertter 15968 1998-04-04
U.S.A., California, Contra Costa, Shell Ridge Open Space northwest of Mount Diablo, east side of rocky knoll between northwestern-most ridge and Indian Valley School.
SRP
50107 B. Ertter, Rich Rabeler & Tony Morosco 15661 1997-06-10
U.S.A., California, Contra Costa, North base of Mount Diablo, lower end of Mitchell Canyon, open flat near creek.
SRP
50108 B. Ertter, Joanne Kerbavaz 17506 2000-08-20
U.S.A., California, Contra Costa, Hidden Pond on south side of Mount Diablo., 518m
SRP
50123 B. Ertter 9787 1991-05-05
U.S.A., California, Contra Costa, Black Diamond Mines Regional Preserve S of Pittsburg, at edge of Black Diamond Trail ca 1/4 mi E of pond.
SRP
50124 B. Ertter, John Ginochio and Mary Bowerman 17630 2001-05-08
U.S.A., California, Contra Costa, Northwest flank of Mount Diablo, tributary of Galindo Creek on south side of knoll SW of Mount Zion.
SRP
50131 B. Ertter, Lisa Schultheis 15279 1996-09-02
U.S.A., California, Contra Costa, South side Mount Diablo, Sycamore Creek below Sulfur Spring.
SRP
50134 B. Ertter 15453 1997-02-11
U.S.A., California, Contra Costa, North side of Mount Diablo, Donner Cabin site on Donner Canyon Road.
SRP
50135 B. Ertter, Stu Garrett 15522 1997-03-29
U.S.A., California, Contra Costa, West side Mount Diablo, Burma Road above North Gate Road.
SRP
50136 B. Ertter 15438 1997-01-05
U.S.A., California, Contra Costa, Lime Ridge Open Space on northwest side of Mount Diablo, section on north side of Ygnacio Valley Road.
SRP
50137 B. Ertter 15462 1997-02-16
U.S.A., California, Contra Costa, Shell Ridge Open Space on west flank of Mount Diablo, Deer Lake dam.
SRP
50139 B. Ertter, Stu Garrett 15537 1997-03-29
U.S.A., California, Contra Costa, West side Mount Diablo, spring at north junction of Mothers Trail and Burma Road, base of willows.
SRP
50143 B. Ertter 8999 1990-05-19
U.S.A., California, Contra Costa, Lafayette Ridge of Briones Regional Park N of Lafayette., 335m
SRP
50335 B. Ertter, Dan Norris 17606 2001-04-15
U.S.A., California, Contra Costa, Diablo Foothills Regional Park, Alamo Trail from Livorna Staging Area.
SRP
50591 Barbara Ertter, Dan Norris 17585 2001-04-08
U.S.A., California, Contra Costa, Lime Ridge Open Space east of Walnut Creek, path through saddle between summits.
SRP
50592 Barbara Ertter 21713 2014-04-12
U.S.A., California, Contra Costa, Contra Costa Co.: south tributary of Perkins Canyon at Prospectors Gap Road. Ginochio property on east side of Mount Diablo, openings on serpentine., 37.88 -121.89, 486m
SRP
51306 Barbara Ertter, Jim Jokerst and Dave Magney 8116 1989-04-05
U.S.A., California, Contra Costa, W and adjacent to Clifton Court Forebay, ca. 15 airmiles SW Stockton
SRP
57732 Barbara Ertter, D. Gowen 21309 2013-04-09
U.S.A., California, Contra Costa, Mount Diablo State Park southeast of Walnut Creek, Sulfur Spring/Devils Slide Trail southeast of Curry Point., 37.847 -121.916, 450m
SRP
63859 Barbara Ertter, L. Hosley 10822 1991-09-22
U.S.A., California, Contra Costa, Lafayette Reservoir in hills SAW of Lafayette., 137m
SRP
64434 Barbara Ertter, D. Gowen 18665 2006-03-01
U.S.A., California, Contra Costa, Upper San Leandro Reservoir Watershed (EBMUD) south of Moraga, Se end of Rocky Ridge Road as it drops to King Cyn Rd., 37.805 -122.116, 180m
SRP
64940 Barbara Ertter, T. Columbus 9101 1990-06-10
U.S.A., California, Contra Costa, NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill; trail down ridge on N side of Briones Peak., 335m
SRP
67097 Barbara Ertter, Kevin Hintsa et al. 18150 2003-04-20
U.S.A., California, Contra Costa, Diablo Foothills Regional Park on west base of Mount Diablo, south end of trail along west edge of Castle Rock Recreation Area., 122m
SRP
67096 Barbara Ertter 17568 2001-03-18
U.S.A., California, Contra Costa, Shell Ridge Open Space SW of Walnut Creek, Hammill/Corral Spring Trail north of Ginder Gap.
SRP
68567 Barbara Ertter 18627 2005-08-15
U.S.A., California, Contra Costa, East side of Contra Loma Reservoir south of Antioch.
SRP
67440 Barbara Ertter 17963 2002-06-22
U.S.A., California, Contra Costa, Clayton Oaks Road near Rialto Road, east of Donner Canyon at north base of Mount Diablo.
SRP
67516 Barbara Ertter 17842 2002-05-11
U.S.A., California, Contra Costa, Southwest base of Mount Diablo, lower Emmons Canyon Road., 274m
SRP
73718 Lowell Ahart, J. Guardino 20786 2016-04-19
U.S.A., California, Contra Costa, Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' quadrangle. 1/4 miles northwest of Los Vaqueros Reservoir Marina, 1.9 air miles southwest of Los Vaqueros Reservoir Dam, ca. 25 air miles southwest of Stockton., 37.825822 -121.759406, 145m
SRP
73940 Lowell Ahart, J. Guardino 20761 2016-04-19
U.S.A., California, Contra Costa, Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' quadrangle. 1/4 miles northwest of Los Vaqueros Reservoir Marina, 1.9 air miles southwest of Los Vaqueros Reservoir Dam, ca. 25 air miles southwest of Stockton., 37.825822 -121.759406, 145m
SRP
73946 Lowell Ahart, J. Guardino 20755 2016-04-19
U.S.A., California, Contra Costa, West side of the gravel road, 1.8 airmails northwest of Los Vaqueros Reservoir Marina, 2.1 airmails southwest of Los Vaqueros Reservoir Dam, ca. 25 airmails southwest of Stockton., 37.832306 -121.765881, 160m
SRP
73947 Lowell Ahart, J. Guardino 20757 2016-04-19
U.S.A., California, Contra Costa, West side of the gravel road, 1.8 airmails northwest of Los Vaqueros Reservoir Marina, 2.1 airmails southwest of Los Vaqueros Reservoir Dam, ca. 25 airmails southwest of Stockton., 37.832306 -121.765881, 160m
SRP
73950 Lowell Ahart, J. Guardino 20760 2016-04-19
U.S.A., California, Contra Costa, Both sides of the dirt roads, 1.8 airmails northwest of Los Vaqueros Reservoir Marina, 2.1 airmails southwest of Los Vaqueros Reservoir Dam, ca. 25 airmails southwest of Stockton., 37.832306 -121.765881, 160m
SRP
73993 Lowell Ahart, J. Guardino 20772 2016-04-19
U.S.A., California, Contra Costa, Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' quadrangle. Below high water line of Los Vaqueros Reservoir. 1.4 miles northwest of Los Vaqueros Reservoir Marina, 1.9 air miles southwest of Los Vaqueros Reservoir Dam, ca. 25 air miles southwest of Stockton., 37.825822 -121.759406, 145m
SRP
74002 Lowell Ahart, J. Guardino 20778 2016-04-19
U.S.A., California, Contra Costa, Along the sides of the dirt roads, 1.8 airmails northwest of Los Vaqueros Reservoir Marina, 2.1 airmails southwest of Los Vaqueros Reservoir Dam, ca. 25 airmails southwest of Stockton., 37.832306 -121.765881, 160m
SRP
74082 Lowell Ahart, J. Guardino 20783 2016-04-19
U.S.A., California, Contra Costa, Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' quadrangle. Below high water line of Los Vaqueros Reservoir. 1.4 miles northwest of Los Vaqueros Reservoir Marina, 1.9 air miles southwest of Los Vaqueros Reservoir Dam, ca. 25 air miles southwest of Stockton., 37.825822 -121.759406, 145m
SRP
50076 B. Ertter 16703 1999-06-12
U.S.A., California, Contra Costa, Black Hawk Ridge Road between Knobcone Point Road and NE fork of Sycamore Creek, South side of Mount Diablo., 457m