Rhamnus crocea

Rarity

CNPS-EB: B-PV

14 current natural populations

Criteria:

Small Populations

Observations

Key

Ecology

Flowers January - April

Habitats:

Chaparral
Scrub (Coastal or Interior)
Woodland

References

Populations

Key

Location	Pop ID	Last Recorded	Notes
Chabot Rgnl Park	1	2021-04-10
Chabot Rgnl Park	2	2024-05-10
Franklin Canyon	6	2024-04-16
Garin Rgnl Park	7	2024-07-22
Gateway area	17	2022-11-21
Gateway area, EBMUD land	8	2001-05-06
Knowland Park, Oakland	9	2024-06-01
Las Trampas Rgnl Wilderness	19	2009-03-07
Las Trampas Rgnl Wilderness	20	2002-04-24
Mt. Diablo State Park - North side	4	2002-05-06
Ohlone Rgnl Wilderness	22	2018-12-19
Siesta Valley, Lower - EBMUD land	15	2016-07-10
Siesta Valley, Lower - EBMUD land	24	2024-07-19
Tilden Rgnl Park - San Pablo Ridge	16	2021-06-18
Gudde Ridge, Moraga	13	1993-12-31	Historic
Leona Heights Rgnl Park, or nearby	10	1999-12-31	Historic
Morgan Territory Rgnl Park	21	1992-03-14	Historic
Mt. Diablo State Park - North side	3	1995-03-18	Historic
Mt. Diablo State Park - North side	5	1930-06-22	Historic
Pleasanton Ridge Rgnl Park	18	1999-12-31	Historic
Redwood Rgnl Park	11	1999-12-31	ID Uncertain
Sand Creek	23	2002-12-31	ID Uncertain
Sibley Rgnl Park	12	1999-12-31	Historic
Siesta Valley, Lower - EBMUD land	14	1999-12-31	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.