Rhynchosida physocalyx

An herbaceous malvacid readily identified by the inflated calyx in fruit.

A flower on the Sierra Vista Trail on the western bajada of the Organ Mountains, 28 Sep 2008.

Fruiting calyx, Sierra Vista Trail, 28 Sep 2008.

The immature fruit inside the above calyx, Sierra Vista Trail, 28 Sep 2008.

An upper cauline leaf on the western bajada of the Organ Mountains, 28 Sep 2008.