Stems clustered, to 0.5 m tall and 5 cm diameter, erect or creeping, obscured by old leaf bases. Leaf sheath fibres stiff, erect, separating and becoming spine-like; leaf blades divided into 14-26 leaflets, these densely silvery white on the lower surface. Inflorescences to 0.8 m long; fruits almost globose, to 0.6 cm diameter, blue-black.
Guihaia argyrata has also been reported as occurring in Vietnam. However, I have not seen any evidence to support this and I think it is probably being confused with Guihaia grossifibrosa which does occur in Vietnam.