Haplophyton crooksii
An uncommon apocynacid in southeastern Arizona to western Texas, with yellow, salverform flowers.
Plant habit in Owl Canyon on the southwestern side of the Florida Mountains, 24 Aug 2008.
A flower in Owl Canyon, 24 Aug 2008.
Flower bud showing the calyx, southwestern side of the Florida Mountains, 24 Aug 2008.
A cauline leaf in Owl Canyon on the southwestern side of the Florida Mountains, 24 Aug 2008.