Sterculia, from the Latin stercus dung, alluding to the smell of the flowers. Sterculiaceae s.str. (13 genera) are chiefly tropical trees and shrubs with fibrous mucilaginous bark, hairs stellate or bushy; leaves usually spirally arranged, simple often palmately-lobed, occasionally compound. Flowers usually functionally unisexual, perianth a single whorl, chiefly cup-like with 5 lobes. Carpels 5, styles 5; fruit dehiscent or indehiscent follicles. Sterculiaceae s. lat. includes Byttneriaceae (26 genera)