Small to medium tree or shrub (1.8–)4–15 m tall with large crown and mostly reticulate rough bark; young stems often 4-angled or slightly winged.. Leaves often glaucous, lanceolate-elliptic to oblanceolate-elliptic, 7–15 cm long, 3.5–6.5 cm wide, rounded to bluntly acute, very shortly obtusely subacuminate or even retuse at the apex, broadly rounded to subcordate at the base; petiole usually short, 2–6(–13) mm long.. Calyx including pseudopedicels 4.5–6 mm long; pseudopedicels mostly slender.. Filaments 0.8–1.2 cm long.. Style 0.5–1.3 cm long.. Fruit red to purple-black, urceolate, up to 2 cm long, 1–1.6 cm wide, crowned with persistent calyx.
Closely resembles S. cordatum, but differs in the following: medium-sized tree, 4-15 m high; bark grey or dark brown. Leaf ovate to obovate-elliptic, up to 150 mm long, apex rounded to acute, base broadly rounded and slightly lobed; petiole distinct, 2-6 mm long. Flowers in branched, terminal, corymbose cymes, white, receptacles pink. Stamens many, fluffy. Flowering time Aug.-Dec. Fruit an urceolate berry, up to 15 mm long, purple-black, remains of calyx persistent.