Climbing, epiphytic, high altitude plant, with abrasive roots that branch out from nodes; leaf with cariaceous surface, from saggitate or stretched ovate, with apex pointed, apiculate, to ovate or oblong, with apex pointed to rounded; base deeply cordate; floral bract of convoluted shape, always constricted within the centre of the leaf-surface, externally brown-red, internally bright white; each axil has one inflorescence; floral spike divided into three parts with the apex masculine and fertile, bright pink; the middle section masculine and infertile; the basal section feminine, yellow-green.