416 
SYNGENESIA FRUSTRANEA, 
revolutis, scabris, inte- 
gris, subtus subglaucis, 
superioribus alternis; 
involucri squamis line- 
ari-lanceolatis, ciliatis, 
patentibus; paleis tri- 
dentatis. E. 
the margin revolute, 
scabrous, entire, glau- 
cous underneath, the 
upper ones alternate; 
scales of the involu- 
crum linear-lanceolate, 
ciliate, expanding; 
chaff 3-toothed. 
Sp. pi. 3. p. 2244. Walt. p. 21 6 . Mich. 2. p. 141. Pursh, 2. p. 572- 
Nutt. 2. p. 178. 
Root perennial. Stem two to three feet high, pubescent, sparingly branch- 
ed. Leaves opposite below, alternate near the summit of the stem, scabrous 
on the upper surface, pubescent and somewhat rough underneath. Flowers 
small, terminal. Leaves of the involucrum very acute, as long as the disk. 
Florets of the ray about twelve, about an inch long, yellow; of the disk dark 
purple at the summit. Seeds compressed. Pappus setaceous, fringed* 
about half as long as the seed. Receptacle convex, chaff concave, slightly 
three-cleft at the summit. 
Grows in damp soils, most common in wet pine barrens. 
Flowers August — October; sometimes in April. 
** Florihus disci 
Jlavescentibus. 
f Foliis omnibus op- 
posilis. 
4 . Truncatus. 
H. caule gracili, gla- 
bro; foliis oppositis 
ovatis, superne attenu- 
ates, serratis, pilosis, 
scabris, arete sessili- 
bus; involucri squamis 
ovato-lanceolatis, cilia- 
tis; paleis lanceolatis, 
ciliatis pubesceutibus- 
que. E. 
** Florets of the 
disk yellowish. 
f Leaves all oppo- 
site. 
Stem slender, gla- 
brous; leaves opposite, 
ovate, tapering towards 
the summit, serrate, 
hairy, scabrous, closely 
sessile; scales of the 
involucrum ovate-lan- 
ceolate, ciliate; chaff 
lanceolate, ciliate, pu- 
bescent. 
Schweinitz. 
