Croton arenicola Small, Bull. New York Bot. Gard. 3: 428. 1905

Plants 1–2 dm. Stems densely stellate-hairy, hairs appressed, radii equal. Leaves: petiole apical glands sessile, circular when dry, 0.2 mm diam.; blade 0.7–3.5 × 0.5–1.5 cm, length mostly 2 times width or less, firm-thick, marginal teeth rounded, both surfaces densely stellate-hairy; base obscurely 3-veined.

Flowering year-round. Beaches, old fields, disturbed sites, sandy waste places; 0–50 m; Fla.

Variety arenicola is restricted to Miami-Dade, Monroe, and Palm Beach counties. A. M. Ferguson (1901) treated a collection of this variety as Croton betulinus Vahl, but that is a distinct, perennial species from the West Indies.