Zornia cf. venosa

The genus has distinctive bracteate inflorescences. Identification of my plants is uncertain; they key to Zornia sinaloensis in a 1962 key by Mohlenbrock in The Southwestern Naturalist, but that species is not (at least, as of 1962) known outside of Sinaloa. My current tentative ID is based on comparison to a specimen at NMC determined by M. Lavin.

Plant habit at grasslands near La Junta, between Cuauhtémoc & Creel, Chihuahua, Mexico, 6 Sep 2009. Photographed on a trip with the American Penstemon Society.

A flower emerging from the bracts, grasslands near La Junta, 6 Sep 2009.

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