Oenothera deltoides subsp. piperi

Family: Onagraceae · Type: annual · Native

Piper's evening primrose is a California native annual found in the Modoc Plateau in sandy sagebrush scrub and dune habitats at elevations of 850 to 1,800 meters. Flowering from March to May, this plant produces delicate pale flowers with petals 15 to 25 millimeters long. Growing with stems generally less than 10 centimeters tall and often simple or sparingly branched from the base, it has a compact and low-growing form. Its distal leaves are distinctively pinnately lobed, featuring wavy or curly hairs that give the plant a soft, textured appearance. The small fruit has a base 3 to 5 millimeters wide, complementing the plant's diminutive stature.

Habitat: Sand, including dunes, sagebrush scrub

Bloom period: Mar-May

Elevation: 850-1800 m

Bioregions: MP

California counties: Modoc, Lassen, Siskiyou, Mono, Plumas, Sierra, San Bernardino, Inyo, Alpine

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