Corner who was the first to describe them as an architectural growth form) occurring among several families of unrelated trees.

C. polyandrus is native to Borneo,[1] and grows up to a height of 15 meters (49 feet) in height, and may have small buttress roots or even prop roots.

It is topped by a tight circle of indeterminate, once-pinnate leaves up to 170 centimeters (5.5 feet) in length, which may eventually have up to fourteen pairs of leaflets, acquired one pair at a time over a period of several months or years, each leaflet measuring up to 43 cm (17 in) long by 14 cm (5.5 in) in width.

The unbranched inflorescences are up to 2 meters (6.5 feet) long with the flowers occupying just the last foot (30 cm) or so, eventually hanging straight down as the weight of the fruit increases.

Petals 5 or 6, white with red blush and having up to 14 stamens.