Chloropyron palmatum
Syst. Bot. 34: 189. 2009.
Stems erect or spreading, 10–30 cm, sparsely pilose or glabrescent, hairs glandular. Leaf-blades narrowly lanceolate to lanceolate, 7–20 × 3–7 mm, margins entire or pinnately 5-lobed, lateral-veins conspicuous. Spikes 5–15 cm; bracts often red distally, narrowly ovate to ovate, 12–20 mm, margins pinnately 3–7-lobed. Flowers: calyx 12–15 mm; corolla white to pale lavender, 12–20 mm, lobes 4–5 mm, often with pale lavender spots at base of abaxial lobe; stamens 2, each with 2 pollen-sacs; staminodes 2. Capsules narrowly ovoid, 6–7 mm. Seeds 14–18, brown to dark-brown, ± reniform, 2.5–3 mm, with abaxial crest. 2n = 42.
Phenology: Flowering Jun–Aug.
Habitat: Alkaline flats.
Elevation: 10–150 m.
Discussion
Chloropyron palmatum is threatened by agriculture and urbanization (T. I. Chuang and L. R. Heckard 1973) in Fresno, Madera, San Joaquin, and Yolo counties. Inflorescence bracts are not palmate but are more deeply incised than those of C. molle.
Selected References
None.