m s iL is ] a s m
HELENIUM AUTUMNALE.
AMERICAN SNEEZE-WORT. SNEEZE-WEED.
Syngenesia superfiua, Linn. Corymbiferae, Juss.
GENERIC CHARACTER.
CaUx simple, many-parted. Rays of the flower semi-trifid. Receptacle naked, globose
} the rays only paleaceous. Seed villous. Pappus paleaceous, about 5-
leaved, leaflets awned.
SPECIFIC CHARACTER.
Leaves lanceolate, serrate, sub-decurrent j stem corymbose above ; disk florets 5-
cleft j rays flat, reflexed. Willd. and Pursh.
W h o l e plant, particularly stem, branches, and peduncles, covered
with a very dense, short, almost imperceptible pubescence, which
gives the whitish-green appearance to it. Stem from five to seven
feet high, many growing from the same root. Root perennial,
fibrous. Stem erect, angular, somewhat winged from the decurrent
margins of the leaves, much branched above ; branches also angular.
Leaves opake, lanceolate, dotted with innumerable fine pits,
