Herbs with ascending stems rooting on lower nodes, often branched. Branches sparsely strigose. Stem leaves sessile, oblong to narrowly oblong, sparsely strigose, base attenuate, apex obtuse. Inflorescences widely spaced, strongly elongated after anthesis. Pedicel 1.5-2.5 mm, to 2.2 cm after anthesis. Calyx ca. 3.5 mm, to 6 mm in fruit, sparsely strigose outside; lobes narrowly ovate-oblong, ca. 2.6-3 mm in fruit, margin ciliate, apex ± acute to obtuse. Corolla blue, ca. 3.5 mm; tube ca. 1.5 mm. Filaments inserted at middle of corolla tube, ca. 0.4 mm; anthers elliptic, apex with rounded membranous appendages. Ovary smooth, ca. 0.5 mm. Style linear, ca. 1.2 mm, smooth. Nutlets dark brown, dorsiventrally compressed, adaxially nearly flat, deltoid, 1.6-1.7 × 1.5-1.6 mm, shiny, base broadly cuneate, margin narrow, abaxially convex, apex obtuse.
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