Based on an September 2020 extract of the California Plant Rescue Database, San Diego Zoo Global holds 1 accessions of Downingia concolor var. brevior in orthodox seed collection. There are as many as 9618 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, San Diego Zoo Global has collected 1 seed accessions of Downingia concolor var. brevior from 1 plant occurrences listed in the California Natural Diversity Database. These collections together emcompass 45 maternal plants
Known from 3 occurrences the Cyamaca Lake area, San Diego County, California. It occurs in meadows and seeps, and vernal pools, where it is threatened by development, altered hydrology, grazing and recreation. The California Native Plant Society (2014) notes that habitat restoration and seed introduction occurred in 1994, and other conservation activities as of 1997.
Downingia concolor var. brevior is one of eight vernal pool species that are confined to one pool sub-type. Soils supporting pools were never extensive and have been almost completely lost to development. Unique pool sub-types may be at risk for eliminati
There exist approximately 20 known sites where this species has been observed with the majority and largest populations occurring within the Cuyamaca Valley.
CDFG NDDB, 2003
The Helix Water District, Lake Cuyamaca Recreation and Park District, California Department of Parks and Recreation and the U.S. Forest Services manage about 80% of the land with known remaining populations of this plant species. These agencies, along with the California Department of Fish and Game and the U.S. Fish and Wildlife Service, signed a conservation agreement in August 1996 to protect this species. Because of this agreement the Fish and Wildlife Service withdrew a 1994 proposal to list the Cuyamaca Lake downingia.
USFWS News Release, February 6, 1997, Fred Roberts and Susan Saul
Population surveys, assessments, and updating this information into the California Natural Diversity Data Base records (CNDDB) should be initiated. Targeted surveys for populations outside of State Park system.
Collect, develop and maintain seed collections from the most at risk sites throughout the plants range, especially those populations that are not under the protection and stewardship of the State Park system.
Seed germination and horticultural research
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