provided by North American Flora
Helenium polyphyllum Small, Fl. SE. U. S. 1291. 1903
A much branched perennial; stem 3-8 dm. high, broadly winged, puberulent; basal leaves oblanceolate, the upper linear-lanceolate, numerous, 2-10 cm. long, acute, entire or undulate, puberulent; heads very numerous, corymbose; peduncles 2-5 cm. long; bracts narrowly linear or linear-subulate, 5-8 mm. long; receptacle decidedly ovoid; ray-flowers neutral; ligules yellow, 6-15 mm. long; disk ovoid-globose, purple, 8-10 mm. broad; corollas 2-2.5 mm. long, glandular-granuliferous; tube minute; achenes about 1 mm. long, hispid on the angles; squamellae lanceolate, acuminate, nearly 1 mm. long.
Type locality: Not given; but the type was collected at Jackson, Tennessee. Distribution: Illinois to Arkansas and Georgia.
- bibliographic citation
- Per Axel Rydberg. 1915. (CARDUALES); CARDUACEAE; HELENIEAE, TAGETEAE. North American flora. vol 34(2). New York Botanical Garden, New York, NY