Stolons white, 0.3-1.2 mm diam., sparsely villous, hairs white or reddish brown. Flowering stems erect, branching in distal 1/6-1/3, 3-15 cm, glabrous. Leaves alternate, membranous. Stolon leaves: petiole 7-43 mm, sparsely villous, hairs white or reddish brown; blade depressed-ovate to reniform, 6-13 × 7-18 mm, base cordate, margins 5-9-crenate, not purple-spotted, glabrous or sparsely ciliate, hairs white, surfaces glabrous or sparsely villous, especially near petiole, hairs usually white, sometimes purplish. Cauline leaves 1-3; petiole 3-23(-26) mm, glabrous or villous proximally, hairs purplish; blade depressed-ovate to reniform or flabellate, 6-17 × 9-23 mm, base cordate or, rarely, cuneate, margins 5-9-crenate, glabrous, surfaces glabrous abaxially and adaxially or, rarely, villous near petiole, hairs purplish. Inflorescences terminal, 3-12-flowered, compact cymes; bracts greenish yellow, not purple-spotted, foliaceous, ovate to depressed-ovate or flabellate, 2-10 × 2-11 mm, margins 3-7-crenate. Pedicels absent or 0.1-1.2 mm. Flowers: hypanthium yellow or greenish yellow, not purple-spotted, campanulate, 1.2-2.3 × 1.5-3 mm, glabrous; sepals spreading, yellow or greenish yellow, not purple-spotted, ovate to broadly ovate, 0.9-1.5 × 1.1-2 mm, apex obtuse to rounded; nectary disc inconspicuous, yellow, unlobed; stamens 2-8, 0.6-0.7 mm; anthers yellow, 0.1-0.2 × 0.1-0.2 mm; styles 0.3-0.4 mm. Seeds (8-)20-30(-56), reddish brown, ovoid to ellipsoid, (0.5-)0.6-0.9 mm, glabrous. 2n = ca. 120.
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