PERENNIAL SUNFLOWERS. 



87 



H. giganteus, L. — Stems 10 to 12 feet high, purplish, 

 glaucous, and slightly scabrous, branched from about the 

 middle ; lower leaves lanceolate, tapering to both ends, stalked, 

 opposite, serrated, and scabrous on both surfaces ; upper shortly 

 stalked, or with winged petioles ; bracts of involucre lanceolate, 

 attenuate, acute, ciliate on back and margins ; ray florets 

 deep yellow, somewhat pointed, 1 to 1^ inch long ; disc purplish. 

 (decapetalus suljphnreus elatior, Hort. Barr ; trachellifolius^ 



Fig. 8. — Helianthus orgtalis. (From the Dictionary of Gardening.) 



Hort. Barr; giganteus superbus, Hort. Barr; Maximiliani, Dod.) 

 Moist or wet ground, Canada, Alabama, and Louisiana. 



H. Uaximiliani , Schrader. — Stems scabrous, 7 to 8 feet 

 high ; leaves nearly all alternate, rigid, lanceolate-acute, or 

 acuminate, nearly sessile and entire or slightly serrate ; heads 

 large, produced on short peduncles, mostly in the axils of the 

 upper leaves ; bracts of involucre lanceolate-acute, somewhat 

 rigid ; ray florets 1 to 1 J inch long, golden yellow. Eich prairies 

 and plains ; west of the Mississippi, Texas, &c. 



H. diuaricatus, L. — Stems simple or branched near the 



