The only cited distinction between the plants from the two regions is the fruit colour, yellow-green in D. insignis and bluish in D.

[5] Decaisnea species are deciduous shrubs or small trees growing to 5 to 8 m tall with trunks up to 20 cm in diameter.

It contains a transparent, glutinous, jelly-like pulp containing numerous (around 40) flat black seeds about 1 cm wide.

[7] Decaisnea is grown as an ornamental plant for its foliage and decorative fruit, bright blue in many cultivated specimens.

The plants are successfully grown in cooler temperate climates, and in fertile, well-drained soil.