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Herbs erect, annual. Stems 1-1.5 m, angles scabrid. Petiole 0.3-2.2 cm, scabrid; leaf blade lanceolate to ovate-lanceolate, 2.5-7.5 × 1-2.5 cm, adaxially olive green, tuberculate hairy, abaxially glandular, minutely hispid on veins, base cuneate, margin serrulate, apex acute to acuminate. Spikes continuous, cylindric, terminal or axillary, 1.6-6.5 × 1-1.3 cm; verticillasters many flowered; bracts subulate, as long as calyx; fruiting calyx tubular dilated, ca. 7 × 3 mm, minutely hispid, transparently glandular; veins 10, prominent, arcuate transverse; teeth subulate, ca. 2 mm. Nutlets brown, oblong, ca. 1 × 0.6 mm, adaxially ribbed.
A herb. It grows each year from seed. It is erect and the stems are 1-1.5 m tall. The angles are rough. The leaf stalk is 0.3-2.2 cm long. It is rough. The leaf blade is sword shaped and 2.5-7.5 cm long by 1-2.5 cm wide. It is bluish green and hairy. The flower spikes are in axils of leaves or at the tip of branches. They are 1.6-6.5 cm long and 1-1.3 cm wide. There are many flowers. The nutlets are brown.
Flowers very small, corolla white with mauve marks on the lip
A tall, erect, aromatic, rather scabrid herb
