Named after the nearby town that this species is found, Arctostaphylos rainbowensis, is particularly more resilient than other species of Manzanita. Located between mountain ranges near Rainbow, CA (south of Temecula), its natural occurences are often threatened by agricultural development and wildfires. Either way, the Rainbow Manzanita, is known to quickly reestablish new sprouts on disturbed sites created by these factors.
Arctostaphylos rainbowensis—Rainbow manzanita. Included in the CNPS Inventory of Rare and Endangered Plants on list 1B.1 (rare, threatened, or endangered in CA and elsewhere). "Rainbowensis" means "in the vicinity of Rainbow." Rainbow is a small town in northern San Diego county. Photographed at Regional Parks Botanic Garden located in Tilden Regional Park near Berkeley, CA Photo Credit: John Rusk © 2016
Photo Credit: David Graber © 2003
Photo Credit: EDAW © 2002
Growing into 1-4m tall erect shrubs, A. rainbowensis can be found on rocky regions of acid igneous rock amidst other species of chaparral. From its purple limbs, white blooms occur in the winter months (Dec-March).
Ecological relationships are unknown.
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