The following Participating Institutions are custodians for this species in the CPC National Collection:
Santa Barbara Botanic Garden
The conservation of Chlorogalum purpureum var. reductum is fully sponsored.
Dieter Wilken, Ph.D. contributed to this Plant Profile.
Camatta Canyon amole is a bulbous perennial with 3-7 basal, spreading leaves, 1-5 ascending inflorescences 10 - 20 cm tall, and flowers with 6 bluish purple sepals and petals. This variety is known from only 2 sites, separated by over 5 km. Most of the plants occur in one area of about 2-3 hectares, which may support up to 100,000 individuals (USFWS 2000). Although the largest population is partly enclosed by an elevated pipe barrier, it is susceptible to illegal use by off-highway vehicles, which can compact soils and damage plants, especially during the flowering and fruiting season.
Distribution & Occurrence
Camatta Canyon amole occurs on reddish, gravelly or rocky clay soils of open sites in chaparral and oak savanna. Common associates include other bulbous perennials and annuals in the spring and early summer. (USFWS 2000)
|As many as 100,000 plants may exist, with most occupying a single site with an area of 2-3 hectares. Estimates vary, however, depending on season and plant dormancy. Some observers have reported as few as 10,000 plants (USFWS 1998). The other population, consisting of perhaps several hundred plants, is restricted to an area of less than 0.1 hectare.|
Conservation, Ecology & Research
Both sites are potentially threatened by trampling resulting from stray cattle.
Competition from noxious weeds pose potenti
Seed viability and germination has been studied at the Santa Barbara Botanic Garden.
In situ germination requirements of seeds, including competitive interactions with noxious weeds.
Surveys for undiscovered populations.
Hoover, R. 1940. A monograph of the genus Chlorogalum. Madroo. 5: 137-147.
Hoover, R. 1964. Some noteworthy California Liliaceae. Leaflets of Western Botany. 10: 121-128.
Jernstedt, J.A. 1980. UV absorption by flowers of Chlorogalum liliaceae. Bulletin of the Torrey Botanical Club. 107, 2: 163-171.
USFWS. 1998. Proposed Threatened Status for Chlorogalum purpureum (Purple Amole), a plant from the South Coast Ranges of California. Federal Register. 62, 60: 15158-15164.
USFWS. 2000. Determination of threatened status of Chlorogalum pupureum (purple amole) a rare plant from the South Coast Ranges of California. Federal Register. 65, 54: 14878-14888.
USFWS. 2001. Proposed Designation of Critical Habitat for Chlorogalum purpureum, a Plant From the South Coast Ranges of California. Federal Register. 66, 217: 56508-56530.