Arctostaphylos glandulosa ssp. crassifolia NatureServe Explorer Species Reports — NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and Canada. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.
ITIS Reports — ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of North America and the world.Arctostaphylos glandulosa ssp. crassifolia is only known in the wild from one population near the Mill Creek Summit divide within the Angeles National Forest in the San Gabriel Mountains, and is on the California Native Plant Society Rare and Endangered Plant Inventory.Subspecies include:
• Arctostaphylos glandulosa ssp. adamsii — Adams’ manzanita: endemic to the Transverse Ranges in San Diego County and Baja California.
• Arctostaphylos glandulosa ssp. crassifolia — Costa Baja manzanita, Del Mar manzanita: native to the San Diego and Baja coastlines. is native to California and Baja California. California Rare Plant Rank: 1B.1 (rare, threatened, or endangered in CA and elsewhere).
FWS Digital Media Library — The U.S. Fish and Wildlife Service’s National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.
