Osmadenia sp.
Family: Asteraceae · Type: Annual · Native
Osmadenia sp. is a native California annual in the Asteraceae family.
How to tell it apart
vs Calycadenia: Osmadenia completely lacks sticky glands; Calycadenia covered with sticky tack glands.; vs Stephanomeria: Osmadenia has ray flowers; Stephanomeria has only tubular disc-like flowers, no rays.; vs Blepharizonia: Osmadenia lacks sticky glands; Blepharizonia sticky-glandular throughout.; vs Hemizonia: Osmadenia rays deeply fringed; Hemizonia rays shallowly lobed or entire.; vs Holocarpha: Osmadenia lacks sticky glands and pit glands; Holocarpha has pit-gland-tipped bracts.
Frequently asked questions
Is Osmadenia sp. native to California?
Yes. Osmadenia sp. is native to California (recorded as native).
What plant family does Osmadenia sp. belong to?
Osmadenia sp. is in the Asteraceae family, genus Osmadenia.
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.