As classified in WFO snapshot
June 2023
Warning: older classification
variety
Echinochloa colonum var. zonalis
(Guss.) Wooton & Standl.
This variety name was first published in Bull. New Mexico Agric. Exp. Sta. 81: 45 (1912)
This variety name has been reclassified since this snapshot. Its current preferred usage is a synonym .