Rudbeckia grandiflora, commonly called rough coneflower,[1] is a species of flowering plant in the family Asteraceae.
It is a perennial from a woody base, growing to around 120 cm tall. It produces relatively large inflorescences, with 12-25 yellow ray flowers, each around 3–5 cm long. It blooms from late spring into summer.[2][3]
It is native to North America, where it is found primarily in the south-central United States, including a disjunct population in northwest Georgia.[4][5] The other populations farther east, all small and isolated, are believed to have originated from human introductions.
Its typical natural habitat is in prairies and open woodlands.[2][3]
Two varieties are recognized:[4][2]
Rudbeckia grandiflora, commonly called rough coneflower, is a species of flowering plant in the family Asteraceae.
