USA, Texas, Brewster, Cathedral Mountain, 15 miles south of Alpine.
1372 meters
4500 feet
South slope of Cathedral Mt.
Igneous soil.
Infrequent perennial.
Originally annotated as Leptochloa. Also annotated as L. dubia (Kunth) Nees by B.L. Turner, 7 Jul 2001; and as Diplachne dubia by A.M. Powell (no date).