Herbs 25-30 cm. Stems 15-20 cm, short glandular pubescent. Leaves ovate-oblong, 1-1.2 cm X ca. 4 mm, glabrescent abaxially. Inflorescences spicate, 8-12 cm; bract oblong-lanceolate, ca. 10 X 4-5 mm, along with calyx and corolla sparsely glandular pubescent abaxially, glabrescent adaxially; bractlets absent. Calyx 2-parted to base; lobes lanceolate, 2-segmented halfway, rarely entire; lobes narrowly lanceolate, subequal, 4-6 mm, apex acuminate. Corolla pale yellow, slightly curved, 2-2.2 cm; tube slightly constricted, slightly enlarged upward; upper lip 2-lobed, lobes semirounded, 2-2.5 X ca. 4 mm; lobes of lower lip oblong, 3-4 X 3-3.5 mm, entire or indistinctly dentate. Filaments 1-1.2 cm, base sparsely pubescent; anthers ellipsoid, ca. 1.8 mm, sparsely pubescent. Pistil ca. 1.5 cm; ovary oblong. Style ca. 1 cm, sparsely glandular pubescent; stigma 2-parted, lobes subrounded. Capsule obovoid-oblong, 8-10 X ca. 5 mm. Fl. May-Jul, fr. Jul-Sep.
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