Lasthenia glabrata subsp. glabrata

yellow-ray goldfields

Family:Asteraceae

Rarity

CNPS-EB: A2

8 current natural populations

Criteria:

Limited/Threatened Habitat
Declining

Observations

Key

Ecology

Flowers March - May

Habitats:

Alkali Areas
Vernal Pool

All Lasthenia

L. conjugens (*A2)
L. ferrisiae (*A1)
L. fremontii (A1)
L. glaberrima (B)
L. glabrata subsp. glabrata
L. maritima (A1x)
L. microglossa (A2)
L. minor (A1)
L. platycarpha (A1)

References

Populations

Key

Location	Pop ID	Last Recorded	Notes
Black Diamond - Nortonville	11	2004-04-18
Contra Loma Rgnl Park	24	2004-04-16
Discovery Bay	13	2003-04-17
Fremont Shoreline	23	2022-03-31
Springtown Wetlands Preserve	18	2023-04-05
Tilden Rgnl Park - San Pablo Ridge	14	2001-12-31
Walnut Creek	19	2009-06-30
Warm Springs, Fremont	8	2019-05-20
Alameda Shore	1	1924-12-31	Historic
Altamont Pass	2	1928-12-31	Historic
Alvarado	3	1965-12-31	Historic
Antioch - other or unknown sites	10	1899-12-31	Historic
Byron - other or unknown sites	12	1991-03-21	Historic
Las Trampas Rgnl Wilderness	15	1965-12-31	Historic
Los Vaqueros Watershed	17	1988-12-31	Historic
Moraga - other or unknown sites	16	1933-12-31	Historic
Mt. Diablo State Park - South side	20	1933-05-05	Historic
Mt. Diablo State Park - Summit and Upper area - 2500 ft and abo	21	1990-12-31	Historic
Mt. Diablo State Park - West side	22	1933-12-31	Historic
Oakland - other or unknown sites	6	1882-12-31	Historic
Pleasanton Area	9	1992-12-31	Historic
Pt. Richmond Area	7	1900-03-24	Historic
San Leandro Bay	5	1993-03-09	Historic

The list of populations shows the distinct populations identified by the CNPS-EB Rare and Unusual Plants Committee. The locations in this list are very general. More specific location details can be obtained from the links in the Observations section (for some of these links, a login is required).

Font

Populations in bold type have precise coordinates available for field volunteers and researchers.

Populations in normal type are only known from a description of the location; no precise coordinates are available.

Background

Populations with a white background have been observed in the last 25 years.

Populations with a blue background have not been observed for at least 25 years.

Populations with an orange background have an uncertain location or identification, or are planted.

Columns

Pop ID is a label that identifies the population. Many locations have more than one population of a species, and the population ID is used to distinguish them.