吉龙草 ji long cao

Dysophylla communis Collett & Hemsley, J. Linn. Soc., Bot. 28: 114. 1891.

Herbs ca. 60 cm tall, with strong citral fragrance. Stems erect, purple-red, densely retrorse white pubescent, much branched at base. Petiole 2-5 mm, densely white pubescent; leaf blade ovate to oblong, herbaceous, adaxially white villous, abaxially pubescent, yellowish glandular, margin serrate. Spikes terminal, cylindric, 1-4.5 × 0.8-1 cm, com-pact; verticillasters numerous; rachis densely white villous; bracts linear, to 3.5 mm, densely white pilose. Pedicel ca. 1 mm, densely white villous. Calyx tubular, to 4 mm in fruit, apex recurved, densely gray lanate-villous outside; teeth subequal, slightly closed in fruit. Corolla funnelform, ca. 3 mm, pilose, glandular outside, obscurely hairy annulate inside; upper lip oblong, emarginate, ciliate; lateral lobes of lower lip less than 1/2 as wide as middle lobe. Style apex unequally 2-cleft. Nutlets oblong, ca. 0.7 mm, sparsely brown hairy. Fl. and fr. Oct-Dec.

Cultivated or rarely naturalized in China (Yunnan) [Myanmar, Thailand].