GRASSES OF OHIO 
315 
13. Panicum bicknellii Nash. BicknelEs Panic-grass. A slen¬ 
der, usually stifif, erect or decumbent perennial grass, 5 ^- 13^4 ft. high, 
with the lower sheaths pubescent and a few-flowered panicle with 
stiff, slender branches. Spikelets 'Oval or ovate, pubescent with 
ascending hairs; outer empty glume the length of the spikelet. 
On dry, wooded hills. July, Aug. Gallia County. 
14. Panicum sphaerocarpon Ell. Round-fruited Panic-grass. A 
dull green, usually erect, simple or somewhat branched perennial, 
3^-2 ft. high, with somewhat pubescent nodes and an ovoid, long- 
exserted, loosely flowered panicle with viscid spots on the axis and 
ascending branches. Spikelets nearly spherical, obtuse, usually pur¬ 
ple ; outer empty glume broadly ovate, very short. 
In dry or sandy soil. July-Sept. Cuyahoga, Summit, Trumbull, 
Hocking, Scioto. 
15. Panicum polyanthes Schultes. Many-flowered Panic-grass. 
A light green perennial grass with erect, simple stems, 1-3 ft. high, 
with glabrous nodes and very long sheaths with finely ciliate margins, 
and with a densely flowered, elliptic panicle with slender ascending 
branches. Spikelets obovoid or nearly spherical; outer empty glume 
minute. 
In damp ground and woods. July-Sept. Fairfield, Hocking, 
Jackson. 
16. Panicum dichbtomum L. Forked Panic-grass. A glabrous, 
often purplish, perennial grass with erect, dichotomously branched 
stems, j4-2 ft. high, from short, knotted rhizomes, with light green 
to purplish leaves, and with a much exserted terminal panicle with 
lax spreading branches and few spikelets. Spikelets usually glabrous, 
ellipsoid; outer empty glume minute. 
In woodlands and thickets. May-Aug. Rather general; no 
specimens from the northwestern counties. 
17. Panicum microcarpon Muhl. Small-fruited Panic-grass. A 
perennial grass, at first erect but later with densely branched, spread¬ 
ing or prostrate stems, 2-3 ft. long, strongly barbed on the nodes, 
and with a long-exserted, rigid primary panicle and small few- 
flowered secondary panicles. Spikelets purplish, glabrous; outer 
empty glume Ys as long as the spikelet. 
In moist soil and swampy places. June-Aug. Cuyahoga, Lorain, 
Erie, Fairfield, Hocking, Jackson, Adams. 
18. Panicum boreMe Nash. Northern Panic-grass. An erect 
or decumbent, somewhat branched perennial, 1-2 ft. high, with a 
narrow, loosely flowered panicle, the slender branches ascending or 
spreading. Spikelets ellipsoid, pubescent; outer empty glume minute. 
In moist, open ground or woods. June, July. Fulton County. 
