Systenotheca sp.
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Family: Polygonaceae · Type: Annual · Native
Systenotheca sp. is a native California annual in the Polygonaceae family.
How to tell it apart
vs Chorizanthe: Systenotheca has smooth bumpy flowers and no basal spines; most Chorizanthe have hairy flowers and/or basal spines.; vs Dodecahema: Systenotheca has no basal spines; Dodecahema has 6 prominent basal spines.; vs Centrostegia: Systenotheca has no basal spines; Centrostegia has 3 prominent basal spines.; vs Mucronea: Systenotheca has smooth bumpy flowers and hidden bracts; Mucronea has hairy flowers and obvious bracts.; vs Aristocapsa: Systenotheca has equal-sized rim teeth and 3 flowers per cup; Aristocapsa has 5 awned teeth and 4 flowers per cup.
Frequently asked questions
Is Systenotheca sp. native to California?
Yes. Systenotheca sp. is native to California (recorded as native).
What plant family does Systenotheca sp. belong to?
Systenotheca sp. is in the Polygonaceae family, genus Systenotheca.
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.