Perideridia californica

California yampah

Family:Apiaceae

Rarity

CNPS-EB: C

17 current natural populations

Criteria:

Limited/Threatened Habitat
N Limit

Observations

Key

Ecology

Flowers April - May

Habitats:

Riparian

All Perideridia

P. californica
P. gairdneri subsp. gairdneri (*A1x)
P. oregana (A2)

References

Populations

Key

Location	Pop ID	Last Recorded	Notes
Calaveras Reservoir, SFWD	13	2009-06-16
Calaveras Reservoir, SFWD	14	2009-06-24
Los Mochos Boy Scout Camp, Mines Rd	6	2022-05-21
Mines Road/Arryo Mocho	7	2020-05-20
Mines Road/Arryo Mocho	8	2020-05-20
Mines Road/Arryo Mocho	16	2011-06-25
Mines Road/Arryo Mocho	17	2024-05-06
Mines Road/Arryo Mocho	19	2023-05-23
Mt. Diablo State Park - East side	1	2024-05-21
Mt. Diablo State Park - North side	2	2006-03-04
Mt. Diablo State Park - South side	5	2015-04-24
San Francisco Water District land, Sunol	9	2009-06-02
San Francisco Water District land, Sunol	10	2009-05-26
San Francisco Water District land, Sunol	11	2009-12-31
Sunol Rgnl Wilderness	12	2023-06-19
Sunol Rgnl Wilderness	18	2023-06-28
Tesla, Corral Hollow	15	2023-05-06
Mt. Diablo State Park - North side	3	1935-06-15	Historic
Mt. Diablo State Park - North side	4	1995-05-08	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.