Cistanthe umbellata

(Torrey) Hershkovitz

Phytologia 68: 268. 1990.

Walter A. Kelley, John M. Miller, John G. Packer

IllustratedEndemic

Basionym: Spraguea umbellata Torrey Smithsonian Contr. Knowl. 6(2): 4, plate 1. 1853

Synonyms: Calyptridiumu mbellatum (Torrey) Greene Calyptridiumu umbellatum var. caudiciferum (A. Gray) Jepson Spraguea umbellata var. caudicifera A. Gray

Treatment appears in FNA Volume 4. Treatment on page 464. Mentioned on page 460, 461, 462.

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Plants perennial, taprooted; caudex branching. Stems 1 from each rosette, ascending to erect, to 60 cm. Leaves: basal in 2–many prostrate rosettes, blade spatulate, (0.5–)2–7(–15) cm; cauline leaves usually absent. Inflorescences umbellate or subumbellate, dense, globose, 1–2 cm diam. Flowers subsessile; sepals orbiculate, equal, 3–8 mm, scarious; petals 4, white, 3–8 mm; stamens 3, anther red or yellow; style exserted, filiform; stigmas 2. Capsules globose, 2–3 mm; valves 2. Seeds 1–8, black, orbicular-reniform, 0.7–1.2 mm, shiny. 2n = 44.

Phenology: Flowering May–Oct.
Habitat: Dry sandy or gravelly soils
Elevation: 1500-4300 m