Silphium pumilum Michaux, Fl. Bor.-Amer. 2: 146. 1803; Berlandiera dealbata (Torrey & A. Gray) Small; B. pumila var. dealbata (Torrey & A. Gray) Trelease; B. tomentosa (Pursh) Nuttall; B. tomentosa var. dealbata Torrey & A. Gray; Polymnia caroliniana Poiret; S. tomentosum Pursh

Plants to 100 cm. Stems (erect) usually branched (sometimes suffrutescent). Leaves evenly distributed along stems; usually petiolate (at least at mid stem); blades oblong, oval, or ovate (widths ³/4–1¹/4 lengths, not lobed, except intergrades to B. ×humilis, bases truncate to subcordate), membranous, margins crenate, faces grayish velvety. Heads in paniculiform to corymbiform arrays. Peduncles hairy (hairs relatively fine, densely matted). Involucres 14–18 mm diam. Ray corollas deep yellow to orange-yellow, abaxial veins green, laminae 12–20 × 6–9 mm. Disc corollas red to maroon. Cypselae (obovate) 4.5–6 × 3–4 mm. 2n = 30.

Flowering Apr–Aug. Sandy soils, roadsides, fields, woodland borders, open woodlots; 30–100 m; Ala., Fla., Ga., S.C., Tex.