Actaea rubra

Rarity

CNPS-EB: B-PV

22 current natural populations

Criteria:

Narrow Range in ALA & CCA
Small Populations

Observations

CNPS-EB Database ⓘ
Calflora (group) ⓘ
Calflora (public)
iNaturalist
- Genus Actaea
- Actaea rubra
CCH2

Key

Ecology

Flowers May - September

Habitats:

Redwood Forest
Riparian
Woodland

References

Synonyms

Actaea rubra subsp. arguta

Populations

Key

Location	Pop ID	Last Recorded	Notes
Canyon Area	5	2003-05-26
Chabot Rgnl Park	2	2003-03-17
Chabot Rgnl Park	27	2021-06-19
Claremont Canyon Rgnl Park	4	2024-03-31
Dimond Park/District, Oakland	7	2002-12-31
Garin Rgnl Park	9	2025-07-01
Gateway area, EBMUD land	10	2001-03-28
Huckleberry Rgnl Preserve	11	2010-12-31
Huckleberry Rgnl Preserve	25	2021-05-21
Huckleberry Rgnl Preserve	26	2019-07-15
Oakland Hills - North	28	2020-06-22
Redwood Rgnl Park	14	2021-08-01
Redwood Rgnl Park	15	2003-03-16
Redwood Rgnl Park	23	2020-05-07
Redwood Rgnl Park	29	2019-07-04
Redwood Rgnl Park	31	2023-05-30
Redwood Rgnl Park	32	2023-05-27
Redwood Road - North of Pinehurst Rd	1	2019-06-20
Sibley Rgnl Park	16	2025-02-16
Tilden Rgnl Park - Grizzly Peak	19	2021-04-28
Tilden Rgnl Park - other or unknown sites	30	2022-08-31
Wildcat Rgnl Park	24	2020-06-02
Caldecott Corridor, Oakland	3	1994-12-31	Historic
Canyon Area - EBMUD land nearby	6	1992-03-10	Historic
Flicker Ridge - EBMUD	8	1980-12-31	Historic
Leona Heights Rgnl Park, or nearby	12	1992-06-30	Historic
Pleasanton Ridge Rgnl Park	13	1995-12-31	Historic
San Leandro Creek South - EBMUD	17	1990-12-31	Historic
Strawberry Canyon	18	1979-12-31	Historic
Tilden Rgnl Park - Jewel Lake/Nature area	20	1996-12-31	Historic
Tilden Rgnl Park - Wildcat Gorge	21	1996-12-31	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.