Based on an September 2020 extract of the California Plant Rescue Database, California Botanic Garden holds 1 accessions of Arctostaphylos stanfordiana subsp. raichei in orthodox seed collection. There are as many as 1742 seeds of this species in their collection - although some may have been used for curation testing or sent to back up.
Based on an August 2020 extract of the California Plant Rescue Database, University of California-Santa Cruz Arboretum & Botanic Garden has collected 1 seed accessions of Arctostaphylos stanfordiana subsp. raichei from 1 plant occurrences listed in the California Natural Diversity Database. These collections together emcompass 7 maternal plants
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