Herbs perennial or biennial, 10-40(-50) cm tall, densely glandular pubescent. Stems unbranched, erect. Leaves ovate-lanceolate or lanceolate, 1-2.5 cm X 4-8 mm, along with bracts, calyx lobes, and corolla lobes densely glandular pubescent at margin and abaxially. Inflorescences spicate, 8-20 cm, many flowered; bract ovate-lanceolate, 1.6-1.8 cm X 4-6 mm, apex caudate-acuminate or long caudate-acuminate; bractlets absent. Calyx 1.2-1.5 cm, 2-parted to base; segments 2-lobed; lobes narrowly lanceolate or sublinear, unequal, 4-6 mm. Corolla 2-3 cm; tube slightly curved, constricted, enlarged upward; upper lip 2-lobed, occasionally emarginate; lower lip longer than upper; lobes subrounded, margin sinuate or irregularly dentate. Filaments 1.4-1.6 cm, sparsely glandular pubescent basally; anthers ovoid, villous. Ovary oblong-ellipsoid. Style ca. 1.5 cm, sparsely glandular pubescent; stigma 2-lobed. Capsule oblong, ca. 10 X 3-4 mm. Seeds oblong, ca. 0.3 X 0.2 mm.
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