[1] This species is an epiphyte with thick, succulent, rooting stems up to 15 meters long that climbs on trees and shrubs.

The flower can be up to 6.8 centimeters wide and has wavy-edged white petals.

[1] The scientific name commemorates Anna Maria Walker of Sri Lanka with whom Robert Wight collaborated.

The plant is used in the traditional veterinary medicine practices of the Irulas in India.

Stem paste is fed to cattle to treat fever and as a nutritional supplement.