Plants perennial herbs or subshrubs. Stems erect, 0.5-2 m tall, much branched. Stem leaves opposite; petiole 1-5.5 cm; leaf blade ovate, 3-9 × 1.5-6 cm, glandular, densely minutely hispid on veins, base broadly cuneate, margin crenate, apex acuminate, lateral veins 3-paired. Panicles 5-15 cm, narrow, terminal or axillary, pubescent; cymes pedunculate, 3-5-flowered; lower floral leaves sessile, ovate, upper floral leaves bractlike, ovate-lanceolate, shorter than pedicels. Pedicel 1-3 mm. Calyx campanulate, ca. 1.5 × 1.5 mm, pubescent outside, glandular, slightly 2-lipped; teeth ovate-triangular, ca. 1/3 as long as calyx, apex acute; fruiting calyx tubular-campanulate, dilated to ca. 4 mm, slightly curved, netted at apex. Corolla purple to purple-blue, ca. 6 mm, pubescent, tube ca. 2.5 mm, upper lip ca. 2.5 mm; lower lip broadly ovate, ca. 3.5 mm. Stamens included. Style included or slightly exserted. Nutlets brown, obovoid, ca. 1 mm wide, glabrous. Fl. and fr. Oct-Feb.
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A small shrub. It can grow 2 m tall. It has many branches. The leaves on the stem are opposite. The leaves are oval and 3-9 cm long by 2-6 cm wide. There are teeth along the edges. The flowering panicles are 5-15 cm long and there are 3-5 flowers.
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