San Diego Management & Monitoring Program

Otay manzanita
Arctostaphylos otayensis

Kingdom Phylum Subphylum Class Order Suborder Family

Current distribution rangewide

Southwest Peninsular Range of San Diego County [1].

Known Populations in San Diego County

Ten occurrences on Conserved Lands in MU3 (Otay Mountain Ecological Reserve, Otay Mountain Wilderness Area, Otay Ranch Preserve, San Diego National Wildlife Refuge).

List status

None [2].

Habitat affinities

Volcanic rock outcrops, chaparral, and woodlands [1]. Elevation range is 280-1700 meters.

Taxonomy and genetics

Ericaceae family [2].

Life history demography

Perennial evergreen shrub [2].

Seasonal phenology

Bloom period is January-April [2].

Pollination seed dispersal

No information.


Development and frequent wildfires [2] in its small range [3].

Special considerations:

Seed collections by California Plant Rescue [3].

Otay manzanita sources