Plants delicate. Rhizomes creeping, prostrate, slender, branched. Stems erect or reclining, rarely prostrate, 4-25 cm tall, slender, fleshy, glabrous, unbranched or rarely few branched at base, sometimes rooting at nodes. Leaves crowded toward apex of stem, those toward base distant and smaller; blade abaxially green, sometimes suffused with purple, adaxially green, ovate to orbicular, 3-38 × 3-28 mm, membranous or papery, abaxially glabrous or rarely pubescent, adaxially glabrous or sparsely appressed hispidulous, base truncate, subcordate, or cordate, margin flat, crenulate, serrate, serrulate, sometimes ciliate, with gland at each sinus, apex rounded, obtuse, or acute, often mucronate; petiole 2-17 mm. Flowers solitary and axillary, rarely 2-4(-17) in a fascicle. Pedicels slender, ebracteolate, 2-70 mm. Hypanthium obconic or obovoid, glabrous; calyx lobes subulate, narrowly triangular, or triangular. Corolla white, blue-purple, or sometimes pale blue, funnelform-campanulate, 3-10 mm; lobes linear to elliptic. Capsule pendent, obovoid or broadly obovoid, rarely ellipsoid, 2.5-5.5 × 1.5-5 mm; pericarp thin, membranous, prominently veined, distended by mature seeds, eventually ruptured irregularly, mostly at base. Seeds 10-16 per capsule, brown, finely striate, oblong, narrowly oblong, ellipsoid, or fusiform, ca. 1.7 mm. Fl. Mar-May, fr. Apr-Nov. 2n = 30.
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A weak, branching succulent herb up to 16 cm long. Leaves broad ovate to ovate, 4-30 by 4-20 mm, cordate or truncate, entire or crenate, acute or obtuse, both sides puberulous, the underside sometimes glabrous; petiole as long as to a little shorter than the leaves, 4-25 mm, glabrous. Flowers 5-12 mm. Pedicels 6-30 mm. Sepals 5, free, subulate, sometimes triangular, 0.5-1(—1.5) by 0.5 mm, entire, glabrous. Corolla 3-12 mm, campanulate, varying from blue to white; lobes 5, for up to 1/3 connate, nearly equal, elongate to elliptic 2¾-10 by 1-2 mm, entire, acute or obtuse, glabrous. Stamens: anthers c. 1 mm, glabrous; filaments linear, broadened to the base, 2-4 mm, finely haired, sometimes glabrous. Ovary obconical to campanulate, 1.5-3 by 1-2 mm, glabrous; style simple, glabrous, rarely hairy, with narrow stigmas. Fruit ovoid to obovoid, 3-5 by 3-5 mm, with a very thin wall, pendent on the pedicels. Seeds fusiform-ellipsoid, 1-1.5 mm, brown and smooth.
A delicate herb. It has creeping rhizomes. The stems can be erect or lying along the ground. They are 4-25 cm tall. They can form roots at the nodes. The leaves are crowded towards the tips. They are 3-38 mm long by 3-28 mm wide. There can be teeth along the edge. The flowers occur singly in the axils of the leaves. They are funnel shaped and white or blue-purple.
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