Low perennial herb with a thin creeping rootstock; stems weak, procumbent or ascending, 20–30 cm. long, rooting at the lower nodes.. Leaves spirally arranged; petiole 1.2–4 cm. long, slender, usually glabrous; lamina ovate or ± deltate, 1.5–6 cm. long, 1.6–3.4 cm. broad, the apex acute or somewhat acuminate, the base abruptly cuneate, glabrous on both surfaces or with a few short hairs along the midrib and lateral veins above; lateral veins 3–4 pairs; margin crenate-crenulate.. Flowers solitary, epedunculate, rose-pink or mauvish.. Bracts subulate, 1–1.5 mm. long, inconspicuous.. Pedicels 20–30 mm. long, slender, glabrous.. Lateral sepals linear-lanceolate, ± 3 mm. long, acute.. Lower sepal narrowly navicular, 7–8 mm. long, abruptly constricted into a 14–26 mm. long slender curved filiform spur.. Dorsal petal obovate, ± 9 mm. long, 9 mm. broad, dorsally with a narrow crest.. Lateral united petals 13–14 mm. long; upper petal oblong or ± oval, 9–12 mm. long, 4–6 mm. broad; lower petal 2-lobed, the upper lobe oblong to suborbicular, 6–7 mm. long, 3–5 mm. broad, the lower lobe 8–10 mm. long, 2 mm. broad, ligulate.. Ovary glabrous.. Fruit narrowly fusiform, ± 8 mm. long, 2 mm. broad, glabrous.. Fig. 3/36, p. 6.
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