[1] The specific name greeningi was in honour of Linnaeus Greening (1855–1927), an English businessman and naturalist known for his work on arachnids, reptiles and amphibians.

The head is narrow, with bony crests behind the eyes and a long flat snout, armed with small spines.

[6] With a need to keep its skin moist and as a protection against predators, C. greeningi conceals itself in a tree hollow, a rock crevice, a bromeliad or other suitable location.

In the laboratory, a female frog used a test tube for a retreat, sealing off the aperture with its head.

In their natural habitat, when the rainy season starts and the creeks and channels run with water, male frogs establish territories near the watercourses and call to attract females.

The main threats it faces include habitat loss from livestock grazing and crop cultivation, and the occurrence of wildfires.