m 
SVNGENESIA jEQUALlS. 
Leaves sessile, pin- 
natifid, acutely notch- 
ed, very spinous, lan- 
uginous underneath ; 
flowers crowded, brac- 
teate ; bracteas very 
spinous, the spines 
generally in pairs ; in- 
volucrum unarmed. 
Pursh, 2. p. 50 7. Nutt. 2. p. 130. 
Cirsium horridulum. Mich. 2. p. 90. 
Carduus spinosissimus. Walt. p. 194. 
Root perennial, fusiform. Stem erect, simple, 2 — >3 feet high, lanugi- 
nous. Leaves sessile, crowded near the base of the stem, pinnatifid, seg- 
ments lobed, and toothed, and acutely spinous, hairy on the upper surface, 
lanuginous underneath. Flowers sometimes terminal, solitary, generally 
axillary, on very short peduncles, crowded near the summit of the stem. 
Bracteas 20 — 30 around the base of each flower, scarcely longer than 
the involucrum ; the interior appear pectinately spinous, on the exterior 
the spines are distinctly arranged in pairs. Involucrum ventricose, scales 
numerous, lanceolate, very acute, but scarcely spiny, a little hairy. Co- 
rolla pale purple. Seeds oblong, shining, crowned with a feathered pap- 
pus. 
Grows in dry poor soils. Yery generally diffused over our country. 
Flowers March — April. 
7. Horri 
" * 
C. foliis sessilibus, 
pinnatifidis, acute in- 
cisis, spinosissimis 
subtus lanuginosis; flo 
ribus confertis, brac- 
teatis; bracteis gemin- 
atim spinosissimis; in- 
volucris inermibus. 
LIATRIS. Gen. Pl. 1263. 
Involucrum oblon- 
gum, imbricatum. Re- 
ceptaculum nudum. 
Pappus plumosus, sae- 
pius coloratus. Semi- 
na pubescentia, ob- 
eonica. 
Involucrum oblong, 
imbricate. Recepta- 
cle naked. Pappus 
feathered, generally 
coloured. Seeds pu- 
bescent, inversely co- 
nic. 
