GRASSES OF OHIO 
321 
lation of the spikelets. Spikelet 2-flowerecI, one perfect, the other 
vestigial or rarely staminate; empty glumes very unequal; sterile 
lemma often enclosing a hyaline palet; fertile lemma and palet char- 
taceous or indurated in fruit; grain free enclosed in the flowering 
glumes. 
1. Bristles of the inflorescence downwardly barbed; comparatively inconspic¬ 
uous. . C. verticillata. 
1. Bristles upwardly barbed. 2 
2. Bristles at the base of the spikelets 5-16, involucrate, yellowish-brown; in¬ 
florescence racemose ; inner empty glume shorter than the spikelet. C.glauca. 
2. Bristles at the base of the spikelet 1-3, not involucrate; inflorescence pan- 
iculate; inner empty glume as long as the spikelet. 3 
3. Inflorescence 1-314 in. long^ J4 in. thick or less; bristles green. C.viridis. 
3. Inflorescence 4-9 in. long, ^-2 in. thick; bristles usually purple. C. italica. 
1. Chaetochloa verticillata (L.) Scrib. Verticillate Foxtail- 
grass. A tufted annual grass with more or less branched, erect or 
decumbent stems, 1-2 ft. high, and a dense spike-like green panicle 
which is somewhat compound and interrupted at the base. Involucral 
bristles of the inflorescence retrorsely barbed; outer empty glume 
1-nerved, less than one-half as long as the spikelet; fertile lemma 
abruptly apiculate and obscurely transverse-rugose. 
In waste places and yards. July-Sept. From Europe. Cuya¬ 
hoga, Wayne, Jefferson, Franklin, Ross, Montgomery, Warren, Ham¬ 
ilton. ,,, 
2. Chaetochloa glauca (L.) Scrib. Yellow Foxtail-grass. An 
annual grass with compressed, erect or ascending stems, branching 
at the base, 1-4 ft. high, with glaucous leaves, and a yellowish, com¬ 
pact, spike-like panicle. Involucral bristles upwardly barbed, yellow¬ 
ish-brown ; spikelets oval, much shorter than the bristles; fertile 
lemma striate, undulate-rugose, very convex, 
A weed. In cultivated fields and waste places. July-Sept. Gen¬ 
eral. From Europe. 
3. Chaetochloa viridis (L.) Scrib. Green Eoxtail-grass. An 
annual tufted grass with simple or branched, erect or ascending 
stems, l-Sys ft. high, and a rather thick spike-like green panicle with 
slender upwardly barbed greenish bristles. Spikelets elliptic, much 
shorter than the bristles; outer empty glume less than one-half as 
long as the spikelet; fertile lemma only moderately convex, obtuse, 
striate and faintly wrinkled. 
Often a bad weed. In cultivated fields and waste places. July- 
Sept. General. Naturalized from Europe. 
4. Chaetochloa itMica (L.) Scrib. Italian Millet. An annual 
grass with erect stems, 2-5 ft. high, and thick, compact, compound, 
nodding panicles, interrupted at the base. Involucral bristles up¬ 
wardly barbed, usually purplish; spikelets elliptic, shorter than the 
