Shrubs 1-3 m tall. Branches many, slender, pubescent when young. Leaves subsessile to short petiolate; leaf blade lanceolate to ovate-lanceolate, 1.5-8 X 1-3 cm, pilose, abaxially purple-red glandular, base cuneate, margin entire or coarsely 3-5-dentate, apex acuminate to acute. Panicles 2-7.5 X 1-4.5 cm, pilose. Calyx cup-shaped, ca. 2 mm, nearly 2-lipped, 5-dentate, outside puberulent and glandular, inside sparsely glandular. Corolla yellow, 3-5 mm, nearly 2-lipped, 4-lobed; lower lip with 3 slightly unequal lobes and narrower than upper lip, both surfaces velvety and yellow glandular. Ovary glabrous, glandular. Style ca. 4 mm. Fruit globose, 2.5-5 X 2.5-4 mm, apically glandular. Fl. and fr. May-Jul.
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