Rare plants of BLM Clear Creek Management Area

Rare plants at BLM Clear Creek Management Area. See here for location description and access - https://www.calflora.org/app/ipl/ipx?loc_id=gpi226

Strict serpentine endemics -
Aspidotis carlotta-halliae. CRPR 4.2. Hard serpentine rock outcrops. In crevices.
Astragalus clevelandii. CRPR 4.3. Banks of perennial creeks. Upper San Benito River. Disjunct from North Coast Ranges.
Astragalus rattanii var. jepsonianus. CRPR 1B.2. Serpentine clay soils in grassland. Larious Creek. Disjunct from North Coast Ranges.
Camissonia benitensis. CRPR 1B.1. Local endemic. Stream terraces. Also edges of serpentine masses in uplands.
Chorizanthe biloba var. immemora. CRPR 1B.2. Local endemic. Rocky serpentine patches in grasslands.
Fritillaria falcata. CRPR 1B.2. Serpentine talus slopes. One large population near San Carlos Peak.
Fritillaria viridea. CRPR 1B.2. Local endemic. Understory of serpentine chaparral.
Layia discoidea. CRPR 1B.1. Local endemic. Serpentine rock outcrops and talus. Also, on stream terraces.
Monardella antonina ssp. benitensis. CRPR 4.3. Rocky serpentine soils on stream terraces. Rock outcrops.
Solidago guiradonis. CRPR 4.3. Local endemic. Banks of perennial creeks, perennial springs and seeps.
Trichostema rubisepalum. CRPR 4.3. Seasonal creeks, seasonal seeps.

Strict talus endemics (serpentine and non-serpentine) –
Acanthomintha lanceolata. CRPR 4.2. Franciscan formation – greywacke, chert, shale
Clarkia breweri. CRPR 4.2. Franciscan formation – greywacke, chert, shale
Eschscholzia hypecoides. CRPR 4.3. Clay shale.
Ravenella (Campanula) exigua. CRPR 1B.2. Franciscan formation – greywacke, chert, shale

Strict vertic clay soil endemics (mostly non-serpentine, sometimes serpentine) –
Acanthomintha obovata ssp. obovata. CRPR 4.2. Edges of chaparral and oak woodland, grassland.
Allium howellii var. sanbenitense. Local endemic. CRPR 1B.3. Grassland.
Benitoa occidentalis. CRPR 4.3. Edges of chaparral and oak woodland, grassland.
Collinsia bartsiifolia subsp. nov “argillosa”. Local endemic.
Deinandra halliana. CRPR 1B.1. Grassland.
Eriogonum argillosum. CRPR 4.3. Edges of chaparral and oak woodland, grassland.
Eriogonum heermannii var. occidentale. CRPR 1B.2. Very steep, south facing slopes.
Fritillaria agrestis. CRPR 4.2. Edges of chaparral and oak woodland, grassland.
Howelliellia (Antirrhinum) ovatum. CRPR 4.2. Edges of chaparral and oak woodland, grassland.
Madia radiata. CRPR 1B.1. Grassland.

Vernal pools –
Calyptridium parryi var. hesseae. CRPR 1B.1. Vernal pools, seasonal seeps.
Eryngium aristulatum var. hooveri. CRPR 1B.1.

Other habitat types –
Pentachaeta exilis ssp. aeolica. CRPR 1B.2. Gravelly soil patches in grassland.
Horkelia yadonii. CRPR 4.2. Perennial seeps in chaparral.
Leptosiphon ambiguous. CRPR 4.2. Gravelly soil patches in chaparral and grassland.
Malacothamnus aboriginum. CRPR 1B.2. Coastal scrub, locally abundant after fire and other disturbance. less ↑