Bot. Jahrb. Syst. 78: 438. 1959 ,.
Plants 1–2 m, branches spreading. Leaves: petiole 10–15 mm; blade oblong, lanceolate, oblanceolate, or elliptic, 3–8 cm, margins entire or spinulose-serrulate, apex acute to long-acuminate, abaxial surface sparsely pilose. Inflorescences fascicled or solitary, sessile, dense, 20–60-flowered, 4–10 cm; bracts ± persistent, ovate-deltate, 1.7–2.2 mm. Pedicels 2–2.5 mm. Flowers: sepals whitish, lanceolate-ovate, 1.7–2 mm, apex acute or subacute; corolla cylindric, 5–7 mm; filaments papillate (sometimes also spreading-hairy); anthers 1.2–1.5 mm, with 2 awns, thecae divergent distally; ovary glabrous. Capsules 5–6 mm wide. Seeds ellipsoid or oblong; testa firm, reticulate. 2n = 22.
Phenology: Flowering mid spring.
Habitat: Woods along mountain streams, mountain ravines, moist slopes, often associated with Rhododendron maximum
Elevation: 200-2000 m
Ala., Ga., N.C., S.C., Tenn., Va.
"entire" is not a number.