Pigea monopetala

Herb, to 60 cm tall, glabrous. Leaves linear to oblong or narrowly elliptic, 0.5–9 cm long; stipules linear to triangular, to 1.5 mm long. Flowers in terminal and axillary racemes, 2.5–20 cm long, far exceeding the leaves. Sepals lanceolate, 2–3 mm long, green; petals blue-mauve, lower petal elliptic to obovate, 7–20 mm long, usually c. as wide as long, upper pair lanceolate, lateral petals broadly oblong. Capsule 3–6 cm long; seeds pitted, dark brown or black. Flowers Sep.–Jan.