Herbs annual. Stems slender, erect, 5-15(-25) cm, retrorse pubescent. Leaves linear-lanceolate to lanceolate, 0.7-1.5(-2.5) cm × 1-4 mm, glabrous or finely strigose, obscurely glandular, base attenuate to petioles, margin entire, ± ciliate, apex acuminate. Verticillasters 2-6-flowered, lax or compact, in false spikes 2-11(-15) cm; floral leaves much longer than flowers, rarely as long apically, margin ciliate. Pedicel 1.5-4 mm. Calyx subtubular, slightly curved downward, 5-7 mm, base saccate in fruit, spreading hirsute or hirtellous, teeth ovate-triangular. Corolla ca. 1 cm, tube slightly exserted. Fertile stamens 2, included; anthers with an ovate, downwardly directed appendage. Fl. Aug.
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An annual herb. It grows 5-15 cm high. The stems are hairy. The leaves are narrowly sword shaped and 1-2 cm long by 1-4 mm wide. The flower spikes have 2-6 flowers in a layer.