107 
Fic. 403. CHABTOCHLOA VERTICILLATA ae on 
Div. Agros. Bul. 4: 39. 1897. (Panicum verticillatum Linn. Sp. Pl. ed. 2, 82. 
1762; Setaria verticillata Beauv. Agrost. 51. 1812.) BRISTLY FOX-TAIL.—A 
leafy, upright annual 3-6 dm. (1°-2°) high, much branched near the base, wi 
rather slender, spike-like panicles 5-10 em. (2-4^) long. Sheaths loose, gla- 
rous, shorter than the — leaf-blades 7-18 em. (3’-7’) long, 6-12 mm. 
(3"-6") wide, scabrous, acumina! ristles as long as or a little exceeding the 
— downwardly barbed. Spikelets (a, b) nearly sessile, 2-2.5mm. int 
Pu to T nerved, 3 the flowering glume; flowering glume ni narrowly elip 
tical, rounded at th 
n ere and Kentucky, westward to South Dakota and 3 
Naturalized from June to Septem’ 
