Agarista populifolia (Lam.) Judd

Plants to 7 m. Stems terete, with chambered pith. Leaf blades 2.6-9(-11.2) × 0.9-4(-5) cm, base narrowly cuneate to rounded, apex acuminate, surfaces sometimes stipitate-glandular-hairy, hairy on midvein adaxially. Flowers: calyx lobes 0.9-2 × 0.6-1.5 mm; corolla 6-9.5 × 3-5 mm, glabrous; filaments 4-5.5 mm; style impressed into ovary apex. Capsules 3-4 × 4.5-6.5 mm, placentae subapical. Seeds brown, 1.4-2 mm. 2n = 24.