佛光草 fo guang cao

Plants annual. Stems ascending or trailing at base, 10-40 cm, pubescent or puberulent. Basal leaves mostly simple, stem leaves 3-lobed or ternate; petiole 0.6-6 cm, petiolules 1-4 mm; leaf or leaflet blades ovate, 1-3 × 0.8-2 cm, subglabrous or minutely hirsute on veins, margin crenate; terminal leaflet largest. Inflorescences densely hirtellous, glandular pilose; verticillasters 2-8-flowered, lower widely spaced, upper crowded, in axillary or terminal racemes or panicles 7-15 cm; bracts oblong ovate, 3-5 mm. Pedicel ca. 2 mm. Calyx campanulate, 3-4 mm in flower, to 7 mm in fruit, puberulent, glandular, subglabrous inside; upper lip trapeziform, somewhat longer than abaxial, teeth ovate-triangular. Corolla reddish or purplish, 5-7 mm, sparsely puberulent; tube with or without hairy annulus inside, slightly exserted, 3-4 mm, ca. 1 mm wide at base, dilated to ca. 2 mm wide at throat; upper lip suboblong or obovate, straight. Filaments ca. 1 mm; connectives less than 1 mm, arcuate; arms equal. Nutlets brownish, ovoid, 1.5 × 0.7 mm, apex rounded, adaxially ribbed. Fl. Mar-May.

* Streamsides, rocky crevices, forests; 0-900 m. Fujian, Guizhou, Hunan, Sichuan, Zhejiang