Cornus sericea subsp. occidentalis

western dogwood

Family:Cornaceae

Rarity

CNPS-EB: A2

6 current natural populations

Criteria:

Limited/Threatened Habitat
Small Populations

Observations

Key

Ecology

Flowers May - July

Habitats:

Riparian

All Cornus

C. glabrata (A2)
C. sericea subsp. occidentalis
C. sericea subsp. sericea (C)
C. sericea subsp. unknown (C?)

References

Synonyms

Cornus occidentalis

Populations

Key

Location	Pop ID	Last Recorded	Notes
Cull Canyon Rgnl Park	2	2002-08-27
Garin Rgnl Park	5	2017-04-15
Pinole Creek	11	2026-09-10
Sibley Rgnl Park	14	2026-08-19
Tilden Rgnl Park - Jewel Lake/Nature area	15	2025-09-26
Wildcat Rgnl Park	17	2019-04-26
Alhambra Valley	10	1997-12-31	Historic
Briones Rgnl Park	1	1999-12-31	Historic
Dry Creek Pioneer Rgnl Park	3	1992-01-19	Historic
Dry Creek Pioneer Rgnl Park	4	1992-03-04	Historic
Huckleberry Rgnl Preserve	6	1999-12-31	Historic
Lake Temescal Rgnl Park	16	1999-12-31	Historic
Las Trampas Rgnl Wilderness	8	1990-12-31	Historic
Leona Heights Rgnl Park, or nearby	7	1998-06-01	Historic
Redwood Rgnl Park	12	1992-01-05	Historic
San Francisco Water District land, Sunol	9	2001-05-21	Historic
Strawberry Canyon	13	1997-10-02	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.