Southwest Peninsular Range of 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).
Volcanic rock outcrops, chaparral, and woodlands . Elevation range is 280-1700 meters.
Ericaceae family .
Perennial evergreen shrub .
Bloom period is January-April .
Development and frequent wildfires  in its small range .
Seed collections by California Plant Rescue .
 Parker, V. T. , M. C. Vasey, and J. E. Keeley 2016. Arctostaphylos otayensis, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=13959, accessed on September 07, 2016.
 CNPS, Rare Plant Program. 2016. Inventory of Rare and Endangered Plants (online edition, v8-02). California Native Plant Society, Sacramento, CA. http://www.rareplants.cnps.org, accessed 07 September 2016.
 Davitt, J. (2016). Conserving the rare plants of Otay Mountain. Retrieved September 7, 2016, from http://institute.sandiegozoo.org/science-blog/conserving-rare-plants-otay-mountain