Chylismia claviformis subsp. integrior

Family: Onagraceae · Type: annual · Native

Evening primrose is a California native annual found in the southeastern desert mountains in dry flats and desert scrub at elevations of 1,200 to 2,000 meters. Flowering from April to July, this plant produces white flowers fading to purple, with petals 4.5 to 8 millimeters long that have distinctive purple-dotted bases. Growing with strigose stems near the base and becoming slightly glandular-hairy or nearly smooth toward the top, it develops an upright form characteristic of desert annuals. Its leaves have a terminal leaflet less than 70 millimeters long, roughly ovate with a heart-shaped base, and few to no small lateral leaflets. The hypanthium measures 3 to 6 millimeters long, with sepal tips that remain mostly closed in the flower bud.

Habitat: dry flats, desert scrub

Bloom period: Apr-Jul

Elevation: 1200-2000 m

Bioregions: SNE

California counties: Inyo, Mono, Kern, San Bernardino, Plumas, Lassen

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