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FNA | Family List | FNA Vol. 26 | Liliaceae | Chlorogalum

2. Chlorogalum grandiflorum Hoover, Leafl. W. Bot. 2: 128. 1938.

Red hills soap plant

Bulbs ovoid, 5–7 cm, tunic reddish to brown, membranous, outer scales with few delicate fibers. Leaves 1–3 dm × 4–12 mm, margins strongly undulate. Panicles 3–10 dm, branches ascending. Flowers vespertine, closed by following morning; tepals recurved at anthesis, white with purplish midvein, linear, 1.5–3 cm; stamens typically slightly shorter than tepals; anthers yellow, 3 mm; pollen yellow; style often exserted after anthesis, 12–28 mm, equal to or slightly longer than tepals; pedicel stout, 2–5 mm, much shorter than perianth. Capsules 5–8 mm.

Flowering May--Jun. Among rocks (usually serpentinite) on open brushy or wooded hills; of conservation concern; 300--500 m; Calif.

Chlorogalum grandiflorum is considered by the California Native Plant Society to be endangered in a portion of its range. It is often confused with C. pomeridianum var. minus because of bulb characters, but it can be distinguished by its short, stout pedicels and larger flowers.


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