Prunus polystachya (Hook.F.) Kalkman

Deciduous trees, up to 35 m high and more than 60 cm diam., sometimes with buttresses, bark grey to black or blackish brown. Twigs hairy only when young. Leaves elliptic to elliptic-ovate, 8-26 by 5-15 cm, base rounded to truncate, rarely acute, apex obtuse or shortly acuminate, herbaceous to coriaceous, with 9-12(-14) pairs of nerves, venation inconspicuous, glabrous on both sides, finely pubescent below only when very young, basal glands (0-)2, deeply hollowed, distinctly bulging above, not rarely in the contracted leaf-base. Petiole 0.5-1.5 cm long. Stipules narrowly triangular to oblong, oblique, 4-10 by 1.5-3 mm, usually free, rarely shortly intrapetiolarly connate. Racemes solitary, mainly in the basal part of shoots and appearing with the flush of new leaves, in the axils of leaves or in kataphylls below the leaves, or united into pseudo-panicles (leafless shoots usually retaining their terminal bud) or fascicled by contraction of the main axis, or truly compound with some side-branches and without terminal bud, 3.5-11 cm long, rachises short-hairy, pedicels 1-3 mm long. Flowers sometimes male, fragrant. Hypanthium 2-3 mm high, shortly hairy outside. Perianth segments 7-11, subequal or inequal but only rarely by their shape somewhat regularly differentiated as sepals and petals, 1-1.5 mm long, hairy. Stamens 50-85, filaments up to 5 mm, glabrous, anthers 0.3-0.7 mm long. Ovary glabrous except around insertion, or with some long hairs higher up, often on one side only, rarely more densely hairy, style 4-5 mm long, pistillo-dium in male flowers minute. Fruits transversely ellipsoid, 13-21 by 17-27 mm, exocarp glabrous, remaining green when mature (?), endocarp glabrous inside. Seed with glabrous or hairy testa.

Dense primary forest, and also in the more open areas of secondary growth; at elevations from sea level to 600 metres.

Plants can be grown from seeds.