Rhagadiolus sp.
Family: Asteraceae · Type: Annual · Not Native
Rhagadiolus sp. is a non-native California annual in the Asteraceae family.
How to tell it apart
vs Lapsana: Rhagadiolus has long (10-15mm) rigidly spreading fruits; Lapsana has short (3-5mm) fruits that don't spread.; vs Mycelis: Rhagadiolus has distinctive radiating wrapped fruits; Mycelis has blue flowers and regular fruits.; vs Atrichoseris: Rhagadiolus has yellow flowers and radiating fruits; Atrichoseris has white flowers and short fruits.; vs Phalacroseris: Rhagadiolus has branching stems with multiple heads; Phalacroseris has single heads on leafless stems.
Frequently asked questions
Is Rhagadiolus sp. native to California?
No. Rhagadiolus sp. is not native to California (recorded as not native).
What plant family does Rhagadiolus sp. belong to?
Rhagadiolus sp. is in the Asteraceae family, genus Rhagadiolus.
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.