Leaves: stipules leaving straight or slightly curved annular scars, epidermis visible through pubescence. Inflorescences: involucel to 1/4 length of calyx, 8–10-dentate, teeth triangular, 2–3 mm, epidermis visible through pubescence. Pedicels (above articulation) 0.5–2 cm. Flowers: calyx lobes 12–15 × 5–7 mm; corolla yellow with prominent red center, 4–6.5 cm; staminal column 2–2.5 cm; filaments 1–2 mm.

Flowering year-round. Wet ground; 0–50 m; introduced; Fla.; Asia.

Variety tiliaceum is cultivated and escaped in southern Florida. It has been vouchered from Broward, Collier, Hendry, Lee, Manatee, Martin, Miami-Dade, Monroe, Palm Beach, and St. Lucie counties, but some specimens may have been from cultivated plants.