Rapistrum sp.
Wild turnip, Wild Turnip
Family: Brassicaceae · Type: Perennial · Not Native
Rapistrum sp. (Wild turnip) is a non-native California perennial in the Brassicaceae family.
How to tell it apart
vs Hirschfeldia: Rapistrum has stiff hairs below and a spherical terminal fruit segment, Hirschfeldia is smoother with cylindrical pods.; vs Mutarda: Check the fruit tip - Rapistrum has a distinctive round, bead-like terminal segment containing seeds.; vs Cakile: Rapistrum has stiff hairs and yellow flowers, Cakile is completely smooth with white to lavender flowers.; vs Carrichtera: Rapistrum has yellow petals and upright pods, Carrichtera has dark-veined cream petals and downward-curved pods.; vs Armoracia: Rapistrum is an annual with stiff hairs and beaded fruits, Armoracia is a huge perennial with fleshy roots.
Frequently asked questions
Is Rapistrum sp. native to California?
No. Rapistrum sp. is not native to California (recorded as not native).
What plant family does Rapistrum sp. belong to?
Rapistrum sp. is in the Brassicaceae family, genus Rapistrum.
Related species
Other California species in the same genus, family, or bioregion.
Sources: Jepson eFlora · CalPhotos
Last updated 2026-04-14
Data from The California Species Project — 14,000+ California species with verified data from CNPS, CDFW, USFWS, Cal-IPC, and more.