134 
elatior. 
strumarium. 
POLYGAMIA, FRUSTRANEA. 
3. A. leaves bi-pinnatifid, smoothish ; petioles long, 
ciliated; racemes terminal, paniculated; stem 
virgate.— Willd. 
Tall Hog-weed. 
In similar places, near the Buck-inn, on the Lancaster-road. 
Rare. Annual. June, July. 
331. XANTHIUM. Gen. pl. 1426. ( Corymbifere.) 
Monoicous.—Masc. Calix imbricated. An- 
thers approximate, but not united. Recep- 
tacle paleaceous.—F rem. Calix a 2-leaved 
involucrum, 4-flowered. Corolla none. 
Utriculus muricated, bifid. Mut 2-celled. 
—WVutt. 
1. X. stem branched, without prickles ; leaves cor- 
date, serrated, rough, three-nerved at the base ; 
fruit elliptical, pubescent, with stiff-hooked 
bristles.— Willd. and Pursh. 
Icon. Fl. Dan. 970. 
Clotweed. Cockle-burr. Lesser-burdock. 
From one to three feet high. A very ordinary looking 
plant, with green inconspicuous flowers. This is said to be 
the plant mentioned by Wilson in his Ornithology, under the 
name * Cockle-burr,” the seeds of which constitute the favour- 
ite food of the Psitticus Caroliniensis, or Carolina parrot, some- 
times called paraquet. This cockle-burr growsin great abund- 
ance on the shores of the Ohio and Mississippi—where it in- 
jures the wool of the sheep that pasture near it, insinuating 
its prickly burrs so deeply into their wool that it is scarcely 
worth any thing. In wastes, and among rubbish, even in the 
suburbs of our city; common. Annual. September. 
