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DescriptionLow growing perennial, 10 - 20 cm, with a subterranean stem growing from corms, sometimes forming clumps. Leaves 4-7, linear, up to 25 cm, plicate with hairs on the ribs. Leaves normally overtopping the flowers. Flowers arising from the underground stem, large, 5-12 cm in diameter, pale to dark blue or mauve, with a white streak in the lower tepals, rarely all white.