Japanese name: ヤエヤマクロバイ（八重山黒灰） Scientific name:Symplocos caudata
An evergreen small tree.
The previous year's branches are purplish brown.
Leaves are simple and alternate, oblong, 4–10 cm long and 2–4 cm wide, with the tip somewhat drawn out into a tail and low serrations on the margin.
The leaves are hairless on both sides.
The leaf stalk is 5–8 mm long.
Racemes 3–8 cm long emerge from the leaf axils on the upper part of the previous year's branches and bear flowers rather densely.
The corolla is 8 mm across, white tinged with pale blue, and deeply divided into 5 lobes, with many long stamens.
The flowers are fragrant.
The fruit is ovoid-urn-shaped, 5–7 mm long.
