Rudbeckia fulgida var. deamii

(S. F. Blake) Perdue

Rhodora 59: 297. 1958.

Common names: Deam’s coneflower
Basionym: Rudbeckia deamii S. F. Blake Rhodora 19: 113. 1917
Treatment appears in FNA Volume 21. Treatment on page 54.

Stems densely villous-hirsute (hairs retrorse). Leaves: basal blades ovate, 1.5–6 cm wide, lengths to 2 times widths, bases rounded to attenuate, margins mostly coarsely crenate, faces hairy; cauline sessile distally, elliptic to lanceolate (distalmost ovate), not notably smaller distally, bases ± auriculate (clasping), margins sharply serrate (teeth remote), faces densely villous-hirsute. Phyllaries reflexed, 1–2 × 0.2–0.6 cm, densely hairy. Receptacles 11–17 mm diam.; palea margins ciliate, faces mostly glabrous. Ray florets 12–20; laminae 15–25 mm.

Phenology: Flowering late summer–fall.
Habitat: Stream banks, woodland ridges
Elevation: 100–300 m


Selected References


Lower Taxa