Chlorogalum pomeridianum var. pomeridianum

Common soap plant

Chlorogalum pomeridianum var. pomeridianum (Common soap plant), native California herb

(c) Michael Warner, some rights reserved (CC BY), uploaded by Michael Warner · licence

Family: Agavaceae · Type: Herb · Native

Chlorogalum pomeridianum var. pomeridianum (Common soap plant) is a native California herb in the Agavaceae family.

Common soap plant is a California native perennial found in northwestern California, Sierra Nevada foothills, northern Sierra Nevada, western Great Valley, central western, and southwestern California in open grassland, chaparral, and woodland habitats at elevations below 1,900 meters. Flowering from May to August, this plant produces white to pale lavender flowers on tall, branching inflorescences up to 2.5 meters high. Growing with a distinctive bulb wrapped in coarse, fibrous layers, it develops an impressive flowering stalk with multiple spreading branches. Its long, linear leaves emerge from the base of the plant, often twisting and curling as they grow. The plant produces a bulb with numerous tough, stringy fibers that were traditionally used by indigenous communities for soap-making and other practical purposes.

Identification and appearance

Key characters: 4 sympatric species; key differentiators are size, erect growth form, and coarse-fibered bulb coat

Habitat and range

Habitat: Common. Open grassland, chaparral, woodland, sometimes on serpentine

Elevation: < 1900 m

California counties: Tulare, San Bernardino, Los Angeles, Kern, Nevada, Mariposa, Amador, Santa Cruz, Butte, El Dorado, Tuolumne, Sonoma, San Mateo, Santa Clara, Lake, Fresno, Mendocino, Solano, San Luis Obispo, Orange, Ventura, Placer, Marin, Contra Costa, Tehama, Yuba, Monterey, Humboldt, Alameda, Napa, Stanislaus, Merced, Glenn, Sierra, Calaveras, San Diego, Santa Barbara, Trinity, Siskiyou, Yolo, Colusa

Outside California: southwestern Oregon

Bloom period

Chlorogalum pomeridianum var. pomeridianum blooms May-Aug.

How to tell it apart

vs Hooveria: Chlorogalum has branching flower clusters; Hooveria has unbranched racemes.; vs Toxicoscordion: Chlorogalum petals twist together after flowering; death camas petals remain separate.; vs Iris: Chlorogalum has small white flowers in branching clusters; iris has large showy flowers with three drooping petals.; vs Yucca: Chlorogalum has thin wavy-edged leaves and open branching clusters; yucca has stiff sword-leaves and dense clusters.; vs Asparagus: Chlorogalum has wavy-edged leaves from a bulb; asparagus has needle-like leaf scales on branching stems.

Frequently asked questions

Is Chlorogalum pomeridianum var. pomeridianum native to California?

Yes. Chlorogalum pomeridianum var. pomeridianum is native to California (recorded as native).

When does Chlorogalum pomeridianum var. pomeridianum bloom?

Chlorogalum pomeridianum var. pomeridianum blooms May-Aug.

Where in California does Chlorogalum pomeridianum var. pomeridianum grow?

Chlorogalum pomeridianum var. pomeridianum occurs in Tulare, San Bernardino, Los Angeles, Kern, Nevada, Mariposa, Amador, Santa Cruz and other counties, at elevations of < 1900 m.

What plant family does Chlorogalum pomeridianum var. pomeridianum belong to?

Chlorogalum pomeridianum var. pomeridianum is in the Agavaceae family, genus Chlorogalum.

What habitat does Chlorogalum pomeridianum var. pomeridianum grow in?

Chlorogalum pomeridianum var. pomeridianum grows in Common. Open grassland, chaparral, woodland, sometimes on serpentine.

Related species

Other California species in the same genus, family, or bioregion.

All Chlorogalum species · All Agavaceae

Sources: Jepson eFlora · Index of California Plant Names · CalPhotos

Last updated 2026-10-07

Data from The California Species Project — 14,000+ California species with verified data from CNPS, CDFW, USFWS, Cal-IPC, and more.