Layia platyglossa

Rarity

CNPS-EB: B-PV

15 current natural populations

Criteria:

Declining

Observations

CNPS-EB Database ⓘ
Calflora (group) ⓘ
Calflora (public)
iNaturalist
- Genus Layia
- Layia platyglossa
CCH2

Key

Ecology

Flowers February - July

Habitats:

Miscellaneous

All Layia

References

Synonyms

Layia platyglossa subsp. campestris

Populations

Key

Location	Pop ID	Last Recorded	Notes
Chabot Rgnl Park	23	2021-04-10
Del Valle Regional Park	12	2018-05-09
Del Valle Regional Park	26	2025-04-25
El Cerrito Hills	13	2020-04-25
Mines Road/Arryo Mocho	17	2018-04-26
Mines Road/Arryo Mocho	27	2021-04-13
Mt. Diablo State Park - North side	28	2025-03-30
Mt. Diablo State Park - Summit and Upper area - 2500 ft and abo	9	2010-05-15
Mt. Diablo State Park - Summit and Upper area - 2500 ft and abo	10	2023-05-18
Mt. Diablo State Park - Summit and Upper area - 2500 ft and abo	11	2021-04-01
Siesta Valley, Upper - EBMUD land	22	2022-05-22
Springtown Wetlands Preserve Area	20	2005-02-27
Sunol Rgnl Wilderness	21	2018-09-02
Waterbird Park, Martinez	4	2022-03-27
Wildcat Rgnl Park	25	2024-05-18
Antioch Dunes	1	1979-12-31	Historic
Black Diamond Rgnl Preserve	2	1978-12-31	Historic
Briones Rgnl Park	3	1989-12-31	Historic
Byron - other or unknown sites	24	1980-12-31	Historic
Carquinez Strait Rgnl Park	6	1991-05-12	Historic
Claremont Canyon Rgnl Park	5	2024-04-30	Planted
Corral Hollow Area	7	1993-04-17	Historic
Hampton Reserve - EBMUD	14	1974-12-31	Historic
Las Trampas Rgnl Wilderness	15	1990-12-31	Historic
Mt. Diablo State Park - Summit and Upper area - 2500 ft and abo	8	1931-04-19	Historic
Ohlone Rgnl Wilderness	18	1991-05-20	Historic
Round Valley Rgnl Park	19	1992-05-10	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.