Annuals. Stems erect, often reddish, 1-7 cm tall, simple or branched from middle, white pubescent. Petiole ca. 2 mm to sessile upward; leaf blade ovate to ovate-oblong, 3-10 X 2-5 mm, abaxially sparsely pubescent, adaxially glabrous, margin entire or lower leaves sparsely and shallowly incised. Racemes ca. 2 cm, axis and pedicels pubescent and glandular hairy; bracts alternate, smaller than leaves, linear to lanceolate. Flowers solitary in bract axils. Pedicel 2-4(-5) mm, shorter to longer than bract, apically curved after flowering. Calyx 4-lobed, slightly enlarged, 3-4.5(-6) mm, abaxially villous and with multicellular hairs; lobes ovate, margin reddish glandular ciliate, obscurely 3-veined. Corolla white or pale blue, rotate, shorter than calyx; lobes ovate. Capsule obcordate, 2.5-3.5 mm, slightly shorter than calyx, strongly compressed, ca. 4 mm wide, parted to middle, notch angle 70-90°; lobes ovate, margin red glandular ciliate, otherwise glabrous or eglandular puberulent. Style ca. 5 mm. Seeds ovoid-navicular, ca. 1 mm; seed coat smooth. Fr. May.
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