''Chisocheton lasiocarpus'' is a species of tree in the genus

Chisocheton ''Chisocheton'' is a genus of trees in the family Meliaceae. The genus name comes from the Greek ' and ' meaning "split tunic", referring to the lobed staminal tube of '' C. patens''. Their range is from India and tropical China, throughout Male ...

of the Mahogany Family (Meliaceae). It is a sparsely branched, slightly buttressed, somewhat stout mesocaul or rather slender pachycaul tree of the western New Guinea rainforest rising to 110 feet (33 meters) in height, and possibly the only such tree with a weeping habit, the huge terminal rosettes of five foot (1.5 meter) long pinnate leaves of the lower branches facing down toward the earth. Like all Chisochetons, C. lasiocarpus has

indeterminate Indeterminate may refer to: In mathematics * Indeterminate (variable), a symbol that is treated as a variable * Indeterminate system, a system of simultaneous equations that has more than one solution * Indeterminate equation, an equation that ha ...

leaves with a tiny

circinate In mathematics, an annulus (plural annuli or annuluses) is the region between two concentric circles. Informally, it is shaped like a ring or a hardware washer. The word "annulus" is borrowed from the Latin word ''anulus'' or ''annulus'' mean ...

bud at the tip of each leaf which produces a new pair of leaflets every few weeks or months over a period of several years, each leaf eventually reaching five feet (1.5 meters) in length. There are 9 to 11 pairs of leaflets at a time (the oldest may die as new ones are formed). Each leaflet can be up to 18 inches (45 centimeters) long by up to nine inches (23 centimeters) in width. The flowers are white or pink, tubular, about a half inch (one cm) long with 4 or 5 petals and 7 or 8 stamens. The tree is "myrmecophilous" (has a symbiotic relationship with certain ant species). C. lasiocarpus is a highly variable species.Flora Malesiana op. cit p 154

References

lasiocarpus ''Lasiocarpus'' is a genus of flowering plants belonging to the family Malpighiaceae Malpighiaceae is a family of flowering plants in the order Malpighiales. It comprises about 73 genera and 1315 species, all of which are native to the tropics ...

{{Meliaceae-stub