Dodecahema sp.
Family: Polygonaceae · Type: Annual · Native
Dodecahema sp. is a native California annual in the Polygonaceae family.
How to tell it apart
vs Chorizanthe: Dodecahema has 6-angled cups with 12 total spines (6 basal + 6 rim); Chorizanthe varies widely but never this exact pattern.; vs Centrostegia: Dodecahema cups are 6-angled with 6 basal spines; Centrostegia cups are 3-angled with only 3 basal spines.; vs Systenotheca: Dodecahema has prominent spines at both base and rim; Systenotheca has no basal spines at all.; vs Mucronea: Dodecahema has 6 basal spines projecting from the cup base; Mucronea has no basal spines.; vs Aristocapsa: Dodecahema has 6 basal spines plus 6 rim spines; Aristocapsa has only 5 rim spines with no basal spines.
Frequently asked questions
Is Dodecahema sp. native to California?
Yes. Dodecahema sp. is native to California (recorded as native).
What plant family does Dodecahema sp. belong to?
Dodecahema sp. is in the Polygonaceae family, genus Dodecahema.
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.