Stemless, delicate plant, sometimes with stolons, 2-4 cm. Leaves in rosette, ovate to roundish, 0.5-1.5 cm diam., subcordate or truncate at the base, wavy to denticulate along the margin, obtuse at the apex, very thin, glabrous or sparsely hairy above, glabrous underneath; petiole 3-7(-23) mm, glabrous or sparsely pilose. Flowers 5-6.5 mm, axillary or terminal. Pedicels 2-12 mm, glabrous or hairy. Calyx lobes linear-lanceolate, with 1-2 pairs of teeth, hairy, 2-3 mm. Corolla red to dark wine-red, the tube 2-3 mm long, outside glabrous to sparsely hairy, inside glabrous, dorsally split to 1 mm from the base; dorsal lobes half-way connate with the lateral ones, their free part lanceolate, 2-3 mm, reflexed, lateral and ventral lobes also half-way connate, their free part lanceolate, 3-3.2 mm, acute. Stamens c. 2 mm, filaments for ¾ of their length free, glabrous; anthers from dorsal to ventral 1.75-0.75 mm; 2 anterior ones with a short bristle and some hairs. Ovary campanulate to trumpet-shaped, 1-2.5 by 1-2 mm, sparsely hairy; style glabrous. Capsule roundish to ovoid, 3 by 3 mm, sparsely hairy, with a thin wall. Seeds roundish to ovoid, c. 0.5 by 0.5 mm, smooth, dark-brown to black.
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