Chlorogalum grandiflorum


Leafl. W. Bot. 2: 128. 1938.

Common names: Red hills soap plant
EndemicConservation concern
Treatment appears in FNA Volume 26. Treatment on page 309. Mentioned on page 308.

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.

Phenology: Flowering May–Jun.
Habitat: Among rocks (usually serpentinite) on open brushy or wooded hills
Elevation: 300–500 m


Of conservation concern.

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.

Selected References


Lower Taxa