Description from Flora of China
Herbs perennial, usually densely gray or white silky-lanate throughout. Stems erect, ca. 60 cm tall. Petiole semiamplexicaul; basal leaf blade oblong-elliptic, ca. 10 × 2.5 cm, base attenuate, margin crenulate, apex attenuate. Spikes 10-22 cm; verticillasters many flowered, contiguous except for lowest 1-3; floral leaves subsessile, minute, lower ones slightly longer than verticillasters, upper ones shorter; bracteoles linear to linear-lanceolate, ca. 6 mm. Flowers sessile. Calyx tubular-campanulate, slightly curved, ca. 1.2 cm, glabrous except for teeth on inside, 10-veined, accessory veins inconspicuous; teeth subequal or posterior teeth larger, ovate-triangular, 2-3 mm, apices rigid. Corolla ca. 1.2 cm, silky-lanate, base glabrous; tube ca. 6 mm; upper lip ovate, margin entire; lower lip subpatent, middle lobe broadly ovate, lateral lobes oblong. Filaments densely villous basal to middle. Style much exserted. Immature nutlets brown, oblong, glabrous. Fl. Jul.
Used as an ornamental.
Cultivated in China [SW Asia, Europe].