N. ORD.-—COMPOSITA&, 
Tribe.—ASTEROIDEA., 
GENUS.—ERIGERON,* LINN. 
SEX. SYST.—SYNGENESIA SUPERFLUA. 
80 
ERIGERON. 
CANADA FLEABANE. 
SYN.—ERIGERON CANADENSE, LINN.; E. PANICULATUS, LAM.; E. PUSIL- 
LUS, NUTT.; E. STRICTUM, D. C.; SENECIO CILIATUS, WALT. 
COM. NAMES,—CANADA FLEABANE, HORSE-WEED, BUTTER-WEED, 
COLT’S TAIL, PRIDE-WEED, SCABIOUS; (FR.) ERIGERON DE CANADA; 
(GER.) CANADISCHES BERUFKRAUT. 
A TINCTURE OF THE WHOLE PLANT, ERIGERON CANADENSE, LINN. 
Description. — This common annual herb grows to a height of from 1 
to 4 feet, according to the soil. Stem strict, striate, varying from sparsely 
hispid to almost glabrous; éranches mostly superior, short, slender, ascending. 
Leaves all sessile, alternate, and more or less ciliate-hispid; the lower often some- 
what spatulate, 3-nerved, and sparingly incised; upper leaves linear-lanceolate 
acute at each end. /#florescence in a more or less dense terminal panicle ; heads 
very small, cylindrical, many flowered, and radiate; the face flat or hemispherical ; 
peduncles and pedicels short ; involucre almost glabrous; sca/es linear-lanceolate, 
nearly equal, little imbricated, all reflexed in fruit ; receptacle flat or convex, naked, 
and pitted. Ray florets white, fertile, crowded in a single row, a little exserted 
and surpassing the branches of the style ; tube, elongated-cylindrical ; “gude very 
short, ascending, 2-toothed. Disk florets bisexual ; corolla tubular, mostly 4- 
toothed; laments very short, filiform ; anthers cylindrical, half exserted, not 
tailed, the connective prolonged at the apex; sty/e short, branched; stigmas spread- 
ing. Achenia oblong, flattened, usually pubescent, 2-nerved; pappus simple, a 
single row of capillary bristles. 
History and Habitat.—Erigeron is indigenous to the eastern and central belt 
of North America, where it is common in dry soils, from Canada se Texas ; from 
thence southward, through South America, as far as Argentine Republic. 
In part to recompense Europe for the miserable dock weeds she has sent us, we 
have returned her this species, which has now spread through Asia to the sea, 
It is also introduced in South Africa, Australia, and many of the Pacific palais, 
It flowers, with us, in July and August, maturing its profusion of parachute-like 
seeds in autumn. 
* a o ger ry ‘ $s : ver ls recies, 
"Hp. £ sprin > yépoy éron, an old man; on account of the hoa appearance of some verna k 
? ’ >? 1d 
