Annuals to 30 cm tall, ascending. Stems 4-angled, hirsute. Leaves sessile; leaf blade oblong, 2.5-3.8 × 1-1.8 cm, white pubescent, secondary veins 3-5 on each side of midvein, base truncate to subcordate, margin crenulate, apex obtuse. Inflorescences terminal spikes, 2.5-10 cm; bracts narrowly elliptic, 6-8 × 3-4 mm, margin crenulate or dentate; bracteoles linear, ca. 8 × 3 mm. Calyx 8-9 mm, inside white hirsute; lobes linear, margin ciliate. Corolla purple, 1.2-1.6 cm, outside pilose; lower lip elliptic, ca. 8 × 5 mm, 3-dentate, lobes triangular and ca. 1 × 1 mm; upper lip oblong-ovate, ca. 6 × 3 mm, 2-dentate. Stamens 4, slightly exserted; filaments with longer pair ca. 3 mm and shorter pair ca. 2 mm; anther thecae ca. 1 mm. Ovary ca. 3 mm, comose; style ca. 1 cm, hirsute. Capsule ca. 8 mm, pubescent. Fl. Dec, fr. Mar.
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