Euphorbia hexagonoides

A delicate annual Mexican species, not entering the United States. Similar to Euphorbia bilobata but with long, tapering, whitish appendages on the glands of the involucre.

Cyathia near the top of the falls at Cascada de Basaseachic, Chihuahua, Mexico, 8 Sep 2009. Photographed on a trip with the American Penstemon Society.

Flowering stems near the top of Cascada de Basaseachic, 8 Sep 2009.