Creeping or sometimes scrambling herbs from a perennial base, the long stems mostly unbranched, rooting at the nodes. Stems thin, narrowly winged. Leaves alternate, cordate, 1-2 cm long and broad, crenate, hispid, lower side usually with scattered resinous bodies; petiole slender, up to 2 cm long, stipules foliaceous, laciniate, setulose. Flowers axillary, solitary, declinate, persistent; pedicels thin, up to 5 cm long, bibracteate, inarticulate. Sepals more or less equal, narrowly ovate-acuminate, c. 5 mm long, with rudimentary basal bulges produced below the point of insertion. Petals with the 2 upper pairs whitish, obovate, 5-10 mm long; the anterior shorter, pale to dark blue or violet, veined, with a cylindrical large blunt spur adjoining the curved pedicel-apex. StaÂmens connivent, the apical connective appenÂdage ovate, orange. Ovary globose, glabrous; style narrowly funnel-shaped, oblique. Capsule ovoid, c. 5 mm long, glabrous, pale; seed ovoid, 1-2 mm, several to many, with a distinct spongy aril. Fig. 14: 1.
