Bothriochloa saccharoides subsp. saccharoides

Andropogon hirsutus H.B.K. Nov. Gen. & Sp. 1 : 186. 1816
Andropogon saccharoides leucopogon Palm,eri Hack, in DC. Monog. Phan. 6 : 496. 1889.
Stems up to 8 dm. tall, the nodes densely barbed; leaf -sheaths densely hirsute toward -the apex, otherwise glabrous or sparingly hirsute; blades 2 dm. long or less, 3-6 mm. wide, densely hirsute on both surfaces; panicle flabellate, 5-6 cm. long, the rachis-internodes of the racemes with the terminal hairs about one half as long as the sessile spikelets; sessile spikelet 5.5-6.5 mm. long, the first scale slightly sulcate on the back and with a deep pit-like depression above the middle, the fourth scale with a geniculate awn 2-2.5 cm. long, the column much exserted; pedicellate spikelet of a single linear acute scale 4-5 mm, long.
Type locality : Rio Blanco, near Guadalajara, Jalisco. Distribution : Known only from the type locality.