Strobocalyx arborea

Strobocalyx arborea is a tree species found in tropical regions of Asia. It grows up to 20 meters tall with terete, ferruginous pubescent stems. The leaves are elliptic to oblong, 8–20 cm long, with a coriaceous texture and puberulous surfaces covered in filiform hairs and capitate glands. The capitulescences are thyrsoid paniculate, with narrowly campanulate involucres in 3–4 series and 2–3 mm long. Phyllaries are imbricate, green or purple, with piliferous margins. The florets number 3–6, with corollas 6–7 mm long and lobes approximately 2 mm long. Achenes are 2 mm long, 3–4-angled, and pubescent. The pappus has two series of bristles, with the inner bristles 6–7 mm long. Pollen is subechinolophate and 3-colporate.