38. Swertia cordata (Wallich ex G. Don) C. B. Clarke in J. D. Hooker, Fl. Brit. India. 4: 123. 1883.
心叶獐牙菜 xin ye zhang ya cai
Ophelia cordata Wallich ex G. Don, Gen. Hist. 4: 178. 1837.
Annuals 30-60 cm tall. Roots yellow, fibrous. Stems erect, subquadrangular, with wings on angles, branched. Basal leaves withered at anthesis. Stem leaves sessile, ovate to ovate-cordate, 0.8-2.3 × 0.5-1.2 cm, base cordate and subamplexicaul, margin scabrous, apex acute, veins 3-5. Inflorescences narrow, dense, many-flowered thyrses 13-40 cm. Flowers 5merous. Pedicel 3-10 mm, striate. Calyx tube 1-2 mm; lobes lanceolate to ovate-lanceolate, 5.5-7 mm, margin scabrous and usually slightly revolute, apex acute, veins 3. Corolla pale purple, with dark purple veins, 1-1.5 cm in diam., tube 1-2 mm; lobes narrowly elliptic to elliptic-lanceolate, 8-10 mm, apex acute. Nectaries 1 per corolla lobe, rhomboid to orbicular, reduced to a naked gland patch. Filaments ca. 5 mm; anthers ellipsoid, ca. 5 mm. Style short, distinct; stigma lobes capitate. Capsules ovoid-ellipsoid, 6-8 mm. Seed coat cristate. Fl. Sep-Oct.
Grassland slopes; 1700-4000 m. Xizang, Yunnan [Bhutan, E India, Kashmir, Myanmar, Nepal, Sikkim].