Descurainia sp.
Tansy mustard, Tansy Mustard
Family: Brassicaceae · Type: Perennial · Variable; species dependent
Descurainia sp. (Tansy mustard) is a non-native California perennial in the Brassicaceae family.
How to tell it apart
vs Sisymbrium: Descurainia has soft fuzzy many-branched hairs; Sisymbrium is smooth or has simple unbranched hairs.; vs Lepidium: Descurainia has feathery divided leaves; Lepidium has simple or less-divided leaves and round flat pods.; vs Hirschfeldia: Descurainia has finely divided feathery leaves; Hirschfeldia has lobed but not finely dissected leaves.; vs Brassica: Descurainia has finely divided lacy leaves; Brassica has lobed or simple leaves, not finely dissected.; vs Erodium: Descurainia has four petals and cylindrical pods; Erodium has five petals and long-beaked fruits.
Frequently asked questions
Is Descurainia sp. native to California?
No. Descurainia sp. is not native to California (recorded as variable; species dependent).
What plant family does Descurainia sp. belong to?
Descurainia sp. is in the Brassicaceae family, genus Descurainia.
Related species
Other California species in the same genus, family, or bioregion.
- Descurainia adenophora — White tansy mustard
- Descurainia californica — Sierra tansy mustard
- Descurainia incana — Mountain tansy mustard
- Descurainia incisa subsp. incisa
- Descurainia longipedicellata
- Descurainia nelsonii
- Diplotaxis muralis — Annual wall rocket
- Diplotaxis sp. — Wall rocket
- Diplotaxis tenuifolia — Perennial wall rocket
- Dithyrea californica — California shieldpod
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.