Pterocymbium

Pterocymbium^[1] is a genus in the family Malvaceae: in the subfamily Sterculioideae and previously placed in the Sterculiaceae.^[2] In Indonesia, P. tinctorium (Kelumbuk) is a significant timber tree.

Pterocymbium
Seeds of Pterocymbium tinctorium
P. tinctorium taken in Pesawaran Regency, Sumatra
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Malvales
Family:	Malvaceae
Subfamily:	Sterculioideae
Genus:	Pterocymbium R Brown, 1844
Species
See text

Species

Plants of the World Online^[3] currently (2019) lists the following accepted species:

• Pterocymbium beccarii K.Schum. - New Guinea
• Pterocymbium dongnaiense Pierre - Laos and Vietnam^§
• Pterocymbium dussaudii Tardieu - Laos
• Pterocymbium macranthum Kosterm. - Thailand and Myanmar
• Pterocymbium micranthum Mildbr. - Bismarck Archipelago
• Pterocymbium oceanicum A.C.Sm. - Fiji
• Pterocymbium parviflorum Merr. - Borneo
• Pterocymbium splendens Kosterm. - Borneo
• Pterocymbium stipitatum C.T.White & W.D.Francis n- New Guinea
• Pterocymbium tinctorium (Blanco) Merr. – Indo-China, Malesia (including Philippines)
• Pterocymbium tubulatum (Mast.) Pierre – Peninsular Malaysia
• Pterocymbium viridiflorum Teijsm. & Binn. ex Koord. - Sulawesi

^§ In Viet Nam the name for this genus is Dực nang with two species listed:^[4]

• P. dongnaiense Pierre: Dực nang Ðồng nai
• P. tinctorium (Blanco) Merr.: Dực nang nhuộm

Both are deciduous trees, approximately 25 m high, found in tropical forests.