no A 
a 
COMPOSITE FAMILY. 193 
1. S.vulga’ris, L. Leaves pinnatifid and dentate,—the lowest petiolate, 
the upper ee heads nodding. 
ae SENECIO. Groundsel, 
gs inches high, paniculately branching, angular, mostly smoothish. Leaves 
1- 3 long,—the upper one a t auricled and clas asping,—the lower ones on 
petioles. Me an inch to an inch in length. Jnvol mere somewhat obconical, smooth ; scales 
often sphacelate, or blackish at pe bracteolate at base. -Akenes pubescent on the ribs. 
E 
e to our farmers is not she certained. . 
** Heads asst! charms: root perennial. 
2, 8, aureus, L. Smooth, or often somewhat —_ when 
young; radical leaves lit OV: os “and alr ubeordate. varying to 
ae and rr es cinoma crena te, petio baie joe — 
or partly 
- leaves lyrate—the upper ones lan ae » pinnatifd, sessile or 
donting corymb sabanabellats 
Gotpen Senecro. Golden Ragmort Squaw-weed. 
Stem 1-2 feet high, corymbosely branched,—the lower branches elongated, axillary 
and distant—the upper ones crowaed or subumbellate at the summit of the stem. Leaves 
1~3 inches long, varying in form on the different varieties ; petioles of the radical leaves 
lor 2. 6or 8 inches lo ong. Heads terminal on the fasti; a branches ; rays and disk yel- 
Akenes linear- Bsc f striate-ribbed ; pa white 
Banks of stream sterile fields, and meadows : throughout the United States. 
Fl. April-June. Fi 
Obs. A very variable plant, some forms of which have been described as 
rincipal varieties are, var. obovatus, with round-obovate 
Balanite, 
species. The p 
po toa ; this usually grows . hi. ba places than the var. 
W. 
ich has the root-leaves oblong, spatulate, or lanceo 
cut-toothed, tapering into the etiole. The last named acer is a fre- 
quent weed in poor moist om st an see where the farmer may 
often see patches, in the spring, made ring migon by its yellow rays. 
The var. obovatus (called “ Sqnaw-weed”) has b , by an 
Agricultural writer in New York, as being poisonous to p; but I 
know not how correctly, and am rather inclined to doubt the accuracy 
of the statement. e re a multitudinous famil 
describes nearly 6 7 os are enume- 
spe 
are by Torrzy & Gray as —— of North 
ies are so numerous, and, I be ve altogether worthless, 1 do not 
a that they have been found very colton on the farm. 
23. CENTAURE’A, L. aa 
“[From the Centaur, Chiron,—who, it is said 1 with the ‘oly ia 
Heads ees end beat florets unequal, ere marginal ones larger and 
neutral, or sometimes wanting,—the central ones perfect. Involucre — 
romdich ovoid, he veriasly ) Receptacle — 
ovoid, t he sales iat tary Foe Receptacle 
