Cormous geophyte, up to 350 mm tall, stem erect, smooth, branched. Leaves lanceolate, strongly pleated, usually smooth, with prominent veins, margins thickened, tips pungent. Flowers several in a compact spike, bilabiate, violet to purple with white nectar guides, perianth tube elongate-cylindrical, 50-65 mm long, ovary smooth, bracts smooth or hispid, inner forked apically.
A bulb plant. The leaves are folded lengthwise. The flowers are usually blue. The corms or bulbs have a fibrous covering.