Subshrubs to 30 cm tall. Stems basally woody, decumbent, and often rooting at nodes, then erect, apical potion much branched; branchlets blackish brown when dry, terete or ± 4-angled, pubescent at nodes. Leaves subsessile; leaf blade linear to linear-lanceolate, 1-3.5 × 0.2-0.8 cm, papery, glabrous, secondary veins 4 on each side of midvein, base attenuate, margin entire, apex obtuse to rounded. Spikes axillary, ca. 1 cm, 1-3-flowered; bracts lanceolate to spatulate-lanceolate, 4-6 mm; bracteoles subulate, ca. 1 mm, glabrous. Calyx ca. 5 mm, 5-lobed almost to base; lobes lanceolate-linear. Corolla white, 7-8 mm, pubescent; lower lip 3-lobed, lobes triangular and with an acute apex; upper lip triangular, 2-lobed. Staminal filaments pubescent on basal potion; anther thecae superposed, lower one with a white spur at base. Capsule ca. 5 mm, glabrous. Fl. Jun-Aug, fr. Aug-Oct.
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