Butea monosperma

Name and publication

Butea monosperma (Lam.) Taub., H. G. A. Engler and K. A. E. Prantl, Nat. Pflanzenfam. 3(3): 366 (1894).

Description

The flowers of bastard teak, palas, or dhak, 2-3 cm long, are sold in the potpourri trade as “kesui flowers” or “keysu flowers.” The native color is yellow and brown.

Nativity and distribution

Butea monosperma is native to the Indian Subcontinent, Indo-China, and Malesia but widely cultivated in the tropics for fiber, paper pulp, yellow or orange-red dye from the flowers, “muduga oil” from the fruit, Bengal kino gum from the bark, and as a source of food for lac insects.

Family

Fabaceae (alt. Leguminosae), also placed in Papilionaceae

 flowers; photo © The Lebermuth Company, Inc.

flowers; photo © The Lebermuth Company, Inc.

 flowers, corolla (top), inner flower parts (bottom); photo by Lyndon Photography

flowers, corolla (top), inner flower parts (bottom); photo by Lyndon Photography

 flowers; photo by Christina Southwick

flowers; photo by Christina Southwick

 flower pieces; photo by Christina Southwick

flower pieces; photo by Christina Southwick

 flowers, close-up; photo by Lyndon Photography

flowers, close-up; photo by Lyndon Photography

 flower, close-up; photo by Christina Southwick

flower, close-up; photo by Christina Southwick