Emex sp.
Family: Polygonaceae · Type: Annual · Not Native
Emex sp. is a non-native California annual in the Polygonaceae family.
How to tell it apart
vs Rumex: Emex has fierce three-pronged spines on fruits; Rumex fruits have smooth papery wings.
Frequently asked questions
Is Emex sp. native to California?
No. Emex sp. is not native to California (recorded as not native).
What plant family does Emex sp. belong to?
Emex sp. is in the Polygonaceae family, genus Emex.
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.