Lasthenia microglossa

small-ray goldfields

Family:Asteraceae

Rarity

CNPS-EB: A2

8 current natural populations

Criteria:

N Limit
Declining

Observations

CNPS-EB Database ⓘ
Calflora (group) ⓘ
Calflora (public)
iNaturalist
- Genus Lasthenia
- Lasthenia microglossa
CCH2

Key

Ecology

Flowers March - May

Habitats:

Chaparral
Grassland (Annual or Perennial)
Miscellaneous Wetlands
Woodland

All Lasthenia

References

Populations

Key

Location	Pop ID	Last Recorded	Notes
Black Diamond Rgnl Preserve	1	2023-12-31
Cedar Mountain	13	2019-04-20
Lawrence Livermore Lab, Site 300, Corral Hollow	17	2021-12-31
Mines Road/Arryo Mocho	12	2024-04-10
Mt. Diablo State Park - North side	18	2022-04-03
Mt. Diablo State Park - West side	9	2025-03-29
Round Valley Rgnl Park	15	2003-03-28
Tesla, Corral Hollow	4	2023-05-05
Contra Loma Rgnl Park	5	1995-02-26	Historic
Corral Hollow Area	3	1992-04-16	Historic
Los Vaqueros Watershed	10	1988-12-31	Historic
Mines Road/Arryo Mocho	16	1958-04-13	Historic
Morgan Territory Rgnl Park	11	1992-04-19	Historic
Mt. Diablo State Park - North side	6	1958-03-22	Historic
Mt. Diablo State Park - North side	7	1979-04-10	Historic
Mt. Diablo State Park - Summit and Upper area - 2500 ft and abo	8	1998-04-12	Historic
Pittsburg Hills	14	1992-04-08	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.