Erysimum repandum
Spreading wallflower
(c) KAnatoliy, some rights reserved (CC BY) · licence
Family: Brassicaceae · Type: Herb · Not Native
Erysimum repandum (Spreading wallflower) is a non-native California herb in the Brassicaceae family, recognized by small flowers, thick short pedicels, and wavy leaves.
Spreading wallflower is a naturalized annual found in the northern and central San Joaquin Valley and Modoc Plateau in disturbed areas and fields at elevations below 2,100 meters. Flowering from April to June, this plant produces light yellow flowers 6 to 8 millimeters long with narrow petals. Growing with erect stems 15 to 45 centimeters tall, it spreads widely in open habitats. Its leaves are linear to narrowly oblanceolate, 2 to 12 millimeters wide, with wavy edges and distinctive two-rayed hairs. The fruit develops as a slender 3 to 8 centimeter pod with four distinct angles and spreading seed structures.
Identification and appearance
Key characters: 1 sympatric species; small flowers, thick short pedicels, and wavy leaves are diagnostic
Habitat and range
Habitat: Disturbed areas, fields
Elevation: < 2100 m
Outside California: North America, native to Europe
Bloom period
Erysimum repandum blooms Apr-Jun.
Frequently asked questions
Is Erysimum repandum native to California?
No. Erysimum repandum is not native to California (recorded as not native).
When does Erysimum repandum bloom?
Erysimum repandum blooms Apr-Jun.
What plant family does Erysimum repandum belong to?
Erysimum repandum is in the Brassicaceae family, genus Erysimum.
What habitat does Erysimum repandum grow in?
Erysimum repandum grows in Disturbed areas, fields.
Related species
Other California species in the same genus, family, or bioregion.
Sources: Jepson eFlora · 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.