Cryptantha crassisepala

A common Cryptantha identifiable primarily by nutlet features: there are 4 developed nutlets with one larger than the other (about 2mm long vs. about 1.5mm) and with rounded edges. The sepals also develop a thick, hardened central ridge as they mature.

Plant habit at Aden Malpais, 2/20/05.

An inflorescence at Aden Malpais, 2/20/05.