The pale green leaves are lance-shaped with a prominent mid-vein, 12-20 mm wide. The deep orange flower is trumpet-shaped with a tube that is divided into a slender, twisted lower portion, 7-15 mm long, and then abruptly swollen into a cylindrical upper portion, 16-25 mm long. The flowers are arranged in a spike all facing one side. The fruits are dark purple which mature into large, swollen capsules that split open to expose the seeds, which are pea-sized and bright orange.
The long-tubed, orange flowers are adapted to pollination by sunbirds, the Lesser Double-collared Sunbird, being the most frequent visitor.