Island Manzanita (Arctostaphylos insularis)

Global Rank: G2 - Imperiled
Legal Status: N/A
Family: Ericaceae
State: CA
Nature Serve ID: 160425
Lifeform: Shrub
Date Inducted in National Collection:

Description:

Arctostaphylos insularis, like the neighboring Santa Rosa Manzanita (A. confertiflora), is also endemic to one of the Channel Islands off the coast of Santa Barbara, CA. Specifically, A. insularis is endemic to the Santa Cruz Island, the largest island, where it prefers a variety of habitats including chaparral, oak woodlands, pine forests, and coastal bluffs. The Island Manzanita is in bloom half the year (December-June) until it further matures into orange-brown colored drupe. With its waxy red limbs, characteristic among all Manzanita species, they are known to develop into tree-like structures up to 5 meters high.

Where is Island Manzanita (Arctostaphylos insularis) located in the wild?

Habitat:

Typically, this shrub can be found among chapparal, oak woodland, and pine forest habitats where it can grow on coastal bluffs, rocky slopes, and canyon walls. Its preferred substrates are igneous substrates and even metamorphic rock (NatureServe 2016).

Distribution:

This perennial shrub is native to Santa Cruz Island, one of the Channel Islands off the coast of Santa Barbara, CA.

States & Provinces:

Island Manzanita can historically be found in California

Which CPC Partners conserve Island Manzanita (Arctostaphylos insularis)?

California Botanic Garden

Not Sponsored

Assigned 06/09/17

San Diego Zoo Wildlife Alliance

Not Sponsored

Assigned 06/13/17

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Conservation Actions

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Island Manzanita (Arctostaphylos insularis) Characteristics

Nomenclature

Taxon	Arctostaphylos insularis
Authority	Greene ex Parry
Family	Ericaceae
CPC Number	8547
ITIS	23494
USDA	ARIN2
Duration	Perennial
Common Names	Island Manzanita \| Canyon Sparkles
Associated Scientific Names	Arctostaphylos insularis var. pubescens \| Arctostaphylos insularis \| Arctostaphylos insularis var. insularis \| Uva-ursi insularis
Distribution	This perennial shrub is native to Santa Cruz Island, one of the Channel Islands off the coast of Santa Barbara, CA.

State Rank

State	State Rank
California	SNR

Ecological Relationships

Photos

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