Castilleja campestris var. succulenta
Phytologia 90: 68. 2008.
Herbs 0.9–1.4 dm. Leaves lanceolate, thick, ± brittle, (0.4–)1–2.5 cm. Inflorescences: bracts lanceolate, longer than flowers. Calyces 5.5–9(–11) mm; abaxial and adaxial clefts 2–3 mm, 30–35% of calyx length. Corollas yellow, sometimes orange, 11–18 mm; tube 10–13 mm. Anthers: proximal pollen sac ca. 1/2 length of distal.
Phenology: Flowering Apr–May.
Habitat: Vernal pools, moist ground.
Elevation: 0–800 m.
Variety succulenta is rare and limited to the northeastern San Joaquin Valley, where it is endangered by habitat loss to urbanization and agriculture. It is listed as a threatened species under the Endangered Species Act of the United States.