Plants growing in clumps. Leaf forming closed sheath 20–60 mm above ground before expanding to linear blade, 100–300 × 2.2–6 mm, fleshy, dark green. Flower stem 200–400 mm tall, 1–5-flowered. Sterile bracts 2. Buds slate-grey. Flowers 15–20 mm across, pale blue to bright blue, externally grey. Sepals and petals 7–11 × 3–8 mm. Column 5–7 × 2–3 mm, pale blue; post-anther lobe 3–4 × 2–3 mm, dark brown to black with yellow apex, tubular, inflated, hooded, strongly curved, flat and thick towards apex, deeply notched; column arms converging, c. 1 mm long, curved forwards; hair tufts dense, mop-like, cream-white, touching front of column; hairs c. 1 mm long, tip thickened.
Highly localised; found growing among rushes and sedges on the edges of small pools which form in late winter to spring following good rains; also on grassy flats in moisture-retentive, red-brown loam in River Red Gum woodland.