Based on an September 2020 extract of the California Plant Rescue Database, California Botanic Garden holds 13 accessions of Sidalcea hickmanii subsp. anomala in orthodox seed collection. There are as many as 2789 seeds of this species in their collection - although some may have been used for curation testing or sent to back up.
Based on an September 2020 extract of the California Plant Rescue Database, Santa Barbara Botanic Garden holds 2 accessions of Sidalcea hickmanii subsp. anomala in orthodox seed collection. There are as many as 400 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, Santa Barbara Botanic Garden has collected 2 seed accessions of Sidalcea hickmanii subsp. anomala from 2 plant occurrences listed in the California Natural Diversity Database. These collections together emcompass 22 maternal plants
Sidalacea hickmanii ssp. anomala is a very narrowly restricted subspecies. It is found on serpentine soils near mine spoils in chaparral and the margins of cypress woodlands (CPC 2010). This subspecies seems to require fire to flourish, however, only one of the three occurrences has been burned in the last 20 years. Number of individuals at this occurrence did rapily rise after the fire, which is an encouraging sign that this subspecies could be actively managed. With this said, however, reports of number of individuals has decreased since the early 2000s. The three occurrences are threatened by construction, erosion, cattle and other animals, and probably the greatest threat is lack of fire. Overall, active management and protection for this species is needed given its small area of occupancy, tiny range extent, and threats.
Potential mine reclamation at some sites may have an adverse effect.
Erosion at some road cuts and adjacent trenches.
Known from 4-5 occurrences, each with 20 to over 100 individual plants. Censuses conducted within 1-2 years following fires reveal higher number of plants, suggesting that this species appears to be more abundant after fires and that it is usually represented by a substantial seed bank. (CDFG 2002)
Populations on Camp San Luis Obispo are being monitored.
Some populations in the Los Padres National Forest are protected within the Cuesta Ridge Botanical Area.
Populations on land managed by the California National Guard (Camp San Luis Obispo) are in restricted areas, but proposed mine reclamation may adversely affect some populations.
Genetic variation within and among populations.
Studies of the breeding system and seed biology, including germination requirements.
Seed collections from all known populations.
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