四川沿阶草 si chuan yan jie cao

Roots relatively slender, sometimes with fusiform, tuberous part near tip. Stem rhizomelike, stout, with dense nodes. Leaves somewhat crowded and subterminal, sessile, abaxially glaucous, grasslike, 25--60 cm × 5--11 mm, 5--9-veined, margin serrulate, membranous at base. Scape 13--26 cm. Inflorescence a raceme, 4--11 cm, several to many flowered; bracts lanceolate, basal one 0.8--1.6 cm. Flowers solitary; pedicel 7--9 mm, articulate proximally. Tepals purple or purplish red, ovate-lanceolate, 8--9 × 2--2.5 mm. Filaments very short; anthers 6.5--7 mm, connate to form a cone. Style ca. 7 mm, slender. Fl. Jun--Jul. 2 n = 36*.

* Moist places in sparse forests, hillsides along streams; 1000--2000 m. Sichuan, Yunnan.