"282 composite?. 



Dry swamps. Aug.— Oct. Per. Stem 3 to G feet high, purplish. Leaves 3 to 6 

 inches long, by }/ 2 to 3 inches wide on petioles ]/ 2 to 1*^ inches lorg. Heads mid- 

 dle sized, borne at the top of the slender subcrect branches ; rays expanding 2 to $ 

 iuches long. 



7. II. oroANTEUS, L. Tall Sunflower. 



Stem rough or hairy, branched above ; leaves lanceolate, pointed, serrate, very 

 rough above, rough-hairy beneath, narrowed and ciliate at the base, nearly sessile ' 

 involucre scales long, linear-lanceolate, pointed, hairy or strongly ciliate. 



Thickets and swamps; common. Aug., Sept. Per. — StemZ to 10 feet high, paa 

 ksulately branched at tho summit, sometimes smoothish below. Heads numerous, 

 in a loose terminal panicle ; rays 12 to 20, pale jellow ; disk greenish yellow. 



8. H. decafetalus, L. Thin-leaved . Sunflower. 



Stem erect, tall and branching, smooth below, rough above ; leaves Gvate-lancec- 

 Zate, on short margined petioles, acuminate coarsely ferrate, 3-nervcd, thin and 

 slightly scabrous; involucre scales lance-linear, elongated, loosely spreading, the 

 out^r longer than the disk. 



Copses and low banks of streams ; common. Aug. — Oct. Per. — Stm 3 to 5 feet 

 high, slender, somewhat branching at the summit. Outer invohicral scales some- 

 times foliaceous or changing to leaves. Htadsm a fastigiate corymb; rays 8 to 10. 

 narrow, pale yellow. 



9. H. microcephalia, Torr. & Gr. Small-headed 

 Sunfltower. 



Stem smooth, with 4 to G slender branches above; leaves opposite, or the upper 

 onca alternate, thin ovate-lanceolate, acuminate, somewhat serrate, veiny, petio- 

 Icd, rough above, downy or hairy underneath ; peduncles slender, rough; involucrt 

 sales ovate and ovate-lanceolate, ciliate, the outer with squarrose tips. 



Woods and thickets, western part of the State. Stem 3 to 8 feet high, usually in 

 tufts. Heads small, oblong, ]/£ to ]4 inch broad ; rays 5 to 6, nearly i inch long. 



** Leaves altei-naie, sometimes opposite below. 



10. H. multtflorus, L. Many -rayed Sunflower. . 



Stem erect, branching, scabrous ; leaves alternate, petioled, toothed, 3-nerved 

 lower cordate, upper ovate; involucre scales linear-lanceolate, eiliatc, inner ones 

 lanceolate. 



Mountain woods. July — Sept. Per. Stem and, peduncles rough hairy. Leaves 

 sometimes opposite, rough, serrate. Involucre with 40 to £0 scales, imbricate, net 

 3'iuarrose. .Heads erect; rays numerous, oblong. Perhaps introduced. 



11. H. tuberosus L. Jerusalem Artichoke. 



Root bearing tubers ; Stem stout and tall, branched, rough ; leaves altcrnato, 

 ovate, petiolate, 3-nerved, rough, serrate ; lower cordate-ovate ; petioles ciliate at 

 base; involucre scales linear lanceolate. 



Fields and cultivated grcunds; naturalized, also cultivated. July — Sept. Ter. 

 Stem 4 to 8 feet high, branched. Leaves large wedge-shaped at bt.se; /cut/- cms 

 opposite, rarely ternate or lobed. Heads rather large, terminal, on angular j.ubca- 

 E6U.t peduncles ; rays 12 to 20, yellow. 'Ihe root is sometimes mtd for pTckliiJg. 



SO. COREOPSIS, Linn. Tickseed. 



Gr. iron's, a bug, and opsis, resemblance; from the form of the fruit. 



Heads many-flowered j ray flowers about 8, neutral, in a 

 single series ; dish flowers, small, tubular, perfect. Invol- 

 vcre double; each of about 8 scales, the outer somewhat fo- 



