340 LXXV. COMPOSITE. HELIANTHUS. 
Western States! Stem 3—5f high, scape-like, slender. Leaves 3—5! by 1—2’, 
upper ones 1—2’ long. Heads few, middle size. Rays 12—15, light yellow. 
Ji—Sept. 
6. H. cinereus. Torr. & Gray. Sullivant’s Sunflower. 
“Rough with a cinerous pubescence ; lvs. ovate-oblong, rather acute, ap- 
pressed to the stem, serrulate, sessile, the lower narrowed to a winged petiole; 
ped. naked, slender; scales lanceolate, canescent; ach. villous at summit. 
8. Sullivantii. Larger and more branched; sé. scabrous-hirsute; Jvs. ob- 
scurely serrate, acute, the uppermost entire, often alternate—Near Columbus, 
Ohio. Sullivant. Stem 2—3t high, virgate, sometimes a little branched, bear- 
ing a few heads nearly as large as those of H. mollis.” Fv. Am. IL. p. 324. 
7. H. Motus. Lam. (H. canescens. Michz.) Soft-leaved Sunflower. 
St. villous; dvs. ovate, acuminate, sessile, cordate and clasping, entire or 
subserrate, tomentose-canescent, opposite, upper ones sometimes alternate; 
scales of involucre lanceolate, villose-canescent; chaff entire, acute and canes- 
cent above.—Prairies and barrens, Ohio! Ia.! Mo., common. <A hoary and 
villose species, 2—4f high, nearly simple. Leaves 3—5/ long, }—} as wide. 
Rays 15—25, 4—1’ by }’ wide. Jl—Sept. 
8. H. poronicéipes. Lam. Leopard’s-bane Sunflower. 
St. branched, rough or hirsute above; Jvs. opposite, petiolate, or the upper 
alternate and subsessile, ovate and ovate-lanceolate, acuminate, tripli-veined, 
serrate, scabrous above, smooth or pubescent beneath; scales lance-linear, cili- 
ate, a little longer than the disk; rays 12—15.—A large species, common in 
the Western! and Southern States. Stem 4—7f high, with irregular, alternate 
branches. Leaves 3—10’ by 1—3’; petioles}—1’ long. Rays very showy, 
15—20” by 4—6”. Jl—Sept. wi 2 . 
B. pubescens. (H. pubescens. Hook.) ws. tomentose beneath, subsessile. 
9. H. srruMoésus. Downy Sunflower. 
St. smooth below, scabrous above ; Jus. ovate-lanceolate, acute, serrate, 
scabrous above, smooth or tomentose-canescent beneath; Ads. few, about 10- 
rayed; scales ciliate, equaling the disk, squarrose-spreading at tip—_2| Grows 
in swamps, &c., Can. and U. S. Stem 3—5f high, erect, branching above. 
Leaves petiolate, with an acute point and close serratures, the lower surface va- 
rying in the degree of pubescence. Rays bright yellow, an inch or more in 
length. Scales hairy. Jl. 
10. H. pecaperAutus. Ten-rayed Sunflower. iP 
Lvs. opposite, ovate, acuminate, remotely serrate, 3-veined, scabrous 
above, smooth or nearly so beneath; znvol. scales lanceolate-linear, subciliate, 
spreading, nearly equal; rays 10—12, pale yellow.—Copses, along streams, 
Can. to Car. and Ky. Stem 3—4f high, purplish. Involucre varying in all 
degrees of leafiness between the present form and the variety following. Aug.t 
B. frondosus. Hook. (H. frondosus. Linn.) Outer scales larger and leaf-like. 
11. H. rracHetmrouicvs. Willd. 
St. strict, branching, scabrous or with scattered hairs; lvs. opposite, those 
of the branches mostly alternate, thin, scabrous both sides, tripli-veined, ap- 
ressed, serrate, acuminate, petiolate, lower ones ovate, middle lance-ovate, up- 
per lance-linear ; scales lance-linear, attennate-acuminate, longer than the disk, 
loosely spreading, ciliate ; chaff slightly 3-toothed; rays 12—15.—A tall, hand- 
some species, not uncommon in thickets, &c., Ohio! and Ila.! Stem purplish, 
3—6f high. Leaves 3—6’ by }—3}’; petioles }—1}/ long. Heads middle size, 
at top of the slender, suberect branches. Rays expanding 2—3’, — 
12. H. uirstrus. Raf. (H. diversifolius. Eu.) ‘ 
St. simple or dichotomous above, scabrous, hirsute; dvs. opposite, petio- 
late, subserrate, 3-veined, ovate-lanceolate, obtuse at base, acuminate, very sca- 
brous above, hirsute beneath; scales ovate-lanceolate, acuminate, hirsute, as 
long as the disk ; rays 11—15.—Dry soils, Western and Southern States. Stem 
4—7f high, with irregular, alternate branches. Leaves 3—10’ by 1—3’, petio- 
les }—1’ long. Rays very showy, 15—18” by 4—6”. Jl.—Sept. — : 
8. pubescens. (H. pubescens. Hook.) Ls. tomentose beneath, subsessile. 
