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DescriptionPerennial herb, 30 - 60 cm. Leaves spirally arranged, variable in shape and size, mostly hairless, slightly fleshy, dark green to reddish green; margins crenate-serrulate, often with hairs at the apex of the crenations. Flowers in few-flowered axillary or terminal clusters, variable in colour from pink to deep violet, rarely white; lateral petals very deeply lobed as to appear nearly separate. Spur up to 4 cm, slender, curved.