Calylophus hartwegii P.H.Raven subsp. fendleri (A.Gray) Towner & P.H.Raven

Found from central Arizona through New Mexico to western Texas & southwestern Kansas. Subspecies pubescens has pubescent calices & hypanthia, while subsp. filifolius has narrower leaves & is usually found on gypsum.

A flower at the railroad crossing on the south side of Hurley, Grant County, New Mexico, 20 Sep 2009.

An immature fruit on the south side of Hurley, 20 Sep 2009.

Flower buds on the south side of Hurley, 20 Sep 2009.

A mature fruit on the south side of Hurley, 20 Sep 2009.

A leaf on the south side of Hurley, 20 Sep 2009.