Basic Information
Common Name: Summer-holly
Scientific Name: Comarostaphylis diversifolia ssp. diversifolia
Species Code:
Management Category: VG (species not specifically managed for, but may benefit from vegetation management for VF species)
Occurrence Map
Table of Occurrences

Current Distribution Rangewide

Ranges from southern California to northern Baja California [1].

Known Populations in San Diego County

On Conserved Lands, occurrences found in MU2 (Rancho Mission Park, Soledad Natural Park), MU 3 (Otay Ranch Preserve), MU 4 (Sycamore Canyon and Goodan Ranch), and MU 6 (Sage Hill Preserve, Del Dios Highlands Open Space Preserve, Santa Fe Valley, Lusardi Creek Preserve, Los Penasquitos Canyon Preserve).

List Status


Habitat Affinities

Grows in chaparral and cismontane woodland communities [1].

Taxonomy and Genetics

In the Ericaceae family [1]. There are two subspecies, Comarostaphylis diversilfolia ssp. diversifolia and Comarostaphylis diversifolia ssp. planifola. The former is native to the coastal hills of southern California and Baja Califonia and the latter is native to the Channel Islands of California and the Transverse Ranges north of Los Angeles [2].

Life History Demography

A perennial evergreen shrub [1].

Seasonal Phenology

Blooms from April through June [1,3].

Pollination Seed Dispersal

No information.


Threatened by development, urbanization, and gravel mining [1].

Literature Sources

[1] California Native Plant Society, Rare Plant Program. 2017. Inventory of Rare and Endangered Plants of California (online edition, v8-03 0.39). Website [accessed 29 September 2017].

[2] "Summer Holly." 2017. CalScape.

[3] "Summer Holly." 2017. Calfora.