Prunus ilicifolia subsp. ilicifolia

islay, holly-leafed cherry

Family:Rosaceae

Rarity

CNPS-EB: B

11 current natural populations

Criteria:

Small Populations

Observations

Key

Ecology

Flowers April - May

Habitats:

Chaparral
Open Dry Slope
Scrub (Coastal or Interior)
Woodland

All Prunus

P. emarginata (C)
P. ilicifolia subsp. ilicifolia
P. subcordata (C)

References

Populations

Key

Location	Pop ID	Last Recorded	Notes
Carquinez Strait Rgnl Park	2	2004-05-09
Concord Naval Weapons Station	1	2008-12-31
Coyote Hills Rgnl Park	17	2023-12-22
Cull Canyon Rgnl Park	3	2020-12-20
Hayward Hills	6	2001-12-31
Joaquin Miller Park, Oakland	7	2003-12-31
Port Costa	11	2011-06-12
Redwood Rgnl Park	12	2003-03-15
San Francisco Water District land, Sunol	13	2009-12-31
Sunol Rgnl Wilderness	14	2023-05-29
Sunol Rgnl Wilderness	18	2025-08-16
Del Valle Regional Park	5	1980-12-31	Historic
Leona Heights Rgnl Park, or nearby	9	1992-12-31	Historic
Los Vaqueros Watershed	10	1983-12-31	Historic
Mt. Diablo State Park - North side	4	1997-12-31	Historic
Mt. Diablo State Park - West side	16	2002-12-31	ID Uncertain
San Leandro Reservoir - EBMUD	8	1990-12-31	Historic
Sycamore Grove Rgnl Park - LAPRD	15	1990-12-31	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.