优秀红景天 you xiu hong jing tian

Sedum nobile Franchet, J. Bot. (Morot) 10: 285. 1896; Chamaerhodiola horrida (Praeger) Nakai; C. nobilis (Franchet) Nakai; S. horridum Praeger.

Main root long. Caudex erect, more than 20 cm; persistent old flowering stems present, brown with age. Caudex leaves scalelike. Flowering stems numerous, erect, red-brown when young, 3-4 cm × 1-2 mm, subscabrous, densely leafy. Stem leaves sessile, oblong-lanceolate to -oblanceolate, 7-11 × 1.7-2 mm, adaxially subscabrous, finely mammillate when dry, apex obtuse. Inflorescences 1-4-flowered; bracts leaflike, small. Flowers terminal, shortly pedicellate, unisexual, unequally 4- or 5-merous. Sepals lanceolate-triangular, 2.3-2.5 × 1.3-1.5 mm, apex obtuse. Petals red, suboblong, 4-6 × 1.5-1.7 mm, base slightly narrowed, apex obtuse. Stamens 8-10, ca. 4 mm; antepetalous ones inserted ca. 1 mm from petal base. Nectar scales suborbicular, apex rounded to emarginate. Styles slightly recurved, short. Follicles erect, 1-1.4 cm, base connate for ca. 2 mm. Fl. Jul, fr. Aug-Oct.

Thickets, grassy slopes; 3700-4500 m. NW Yunnan [Myanmar].