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LIATRIS squarrosa.
Squarrose-cupped Liatris, Rattlesnakes Master.
Natural Order. Compositæ. Adanson fam. 2.103.
L IA T R IS . Receptaculum nudum. Pappus plumosus,
coloratus. Involucrum oblongum, imbricatum.
L. squarrosa, caule simplici pubescente, foliis linearibus nervosis
scabris, racemis paucifloris foliosis, involucris tnrbina-
tis ; squamis lanceolatis obtusis rigidis patentibus.
Liatris squarrosa. Willden. sp. pi. 3. p. 1634. Pers. syn. 2.
p . 403. Hort. Kew. ed. 2. v. 4. p. 503. Pursh. flor. amer.
sept. 2. p. 509.
Serratola squarrosa. Hort. cliff. 392.
Cirsium tuberosum, capitulis squarrosis. Dill. elth. »3. t. 71.
/ . 82.
Root perennial, tuberous. Stem simple, from
1» inches to 2 feet high, pubescent. Leaves long,
linear, rough, particularly at the edges, slightly pubescent,
nerved underneath ; stem-leaves narrower, those
near the flowers shorter, broader at the base, and
tapering to the point. Racemes leafy; flowers distant
from each other, the lower ones on long peduncles,
upper ones shorter; terminal flower expanding first,
the others gradually opening downwards, of a bright
purple colour. Peduncles purplish, rough, pubescent,
gradually thickening upwards, and tapering to the
base, leafy. Involucre turbinate, many-leaved, imbricate
; scales lanceolate, obtuse, roughish, finely ciliate,
spreading; upper ones coloured at the points. R e ceptacle
naked, convex, punctate. Florets numerous,
tubular, 5-cleft; tube about the length of the pappus;
laciniae lanceolate, acute, about half as long as the
tube. Stamens 5, inserted in the middle of the tube;
filaments slender, distinct, smooth; anthers connected •4!'
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