Chisocheton macrophyllus in the Mahogany family (Meliaceae) is a pachycaul rainforest tree of the East Indies and Malay Peninsula with very few upright limbs (reiterations) ultimately reaching a height of . Each reiteration is topped by a tight rosette of once-pinnate leaves up to ten feet (three meters) in length (the longest once-pinnate leaves of any dicot) with up to 28 pairs of leaflets at any given time, each up to long by in width. Like all Chisocheton species, these leaves are indeterminate, forming a new pair of leaflets every few weeks or months. while the oldest pair may die. The cream-colored flowers, 1.5 inches (4 cm ) long with 4 or 5 petals, are arranged in a thyrse up to long, followed by pyriform capsules up to in diameter with 2 to 4 seeds each the size and shape of a brazilnut.
References
macrophyllus
Taxa named by George King (botanist) Flora of Malesia Flora of the Nicobar Islands Flora of Thailand Plants described in 1895