No. 38. 
BOUTELOUA HAVARDII Vasey. 
Rootstock short, roots very strong. 
Culms erect, 1 to 2 feet high, baty at the base, sparsely leafy above. 
Lower leaves with the blades crowded, concave, rigid, rough on the margins 
and beneath, ciliate with short, rather distant, hairs; inves aicattis short, loose. 
spoon ligule a ring of short hairs; upper sheaths becoming much longer, bladen 
sho 
Panicle 14 to 23 inches long, composed of 5 to 7 short, thickish, approximate 
spikes, with short, woolly pedicels; spikes about } inch long, erect or spreading, 
consisting of 9 to 13 crowded spikelets on a hairy rachis. 
Spikelets 3 inches long beside the awns of the sterile flower, hairy. 
Empty glumes lanceolate, acuminate, unequal; upper one 3 lines long, with a 
thick midrib, pungent, twice as long as the lower, both beset on the back with 
long white hairs; flowering glumes oblong-lanceolate, 3-nerved, 3 lines long, 
3-toothed at the apex, strongly ciliate on the margins. 
Palet about as long as its glume, 2-nerved, 2-toothed at the apex. Imperfect 
flower composed of 3 stout awns, 5 to 6 lines long, these hairy below and united at 
the summit of a naked pedicel. 
PLATE XXXVIII: a, spikelet; b, flowering glume; c, palet; d, imperfect 
flower. 
