Pseudosedum lievenii (Ledeb.) Berger

Perennial glabrous herb. Root slender, branched, fascicular. Caudex robust, with rosulate scaly leaves. Scaly leaves rosulate, brown, sessile, triangular to triangular-ovate. Flowering stem 1-4, 20-39 cm high, erect, simple. Leaves sessile, simple, alternate, linear, obtuse, entire, 4-25 x 2-3 mm. Inflorescence corymbose, many flowered, loosely arranged, with branches elongating in fruits. Flowers pedicellate, pedicel 1-3 mm long, 5-6 merous, bisexual. Sepals lanceolate or oblong, fleshy, obtuse, 3-5 x 1-1.5 mm. Corolla gamopetalous, lobes connate nearly to the middle, campanulate, pink, drying golden yellow, lanceolate, acute, 8.5-13.5 x 1.5-3 mm. Stamens 10-12, in two whorls, antesepalous, 3-7 mm and epipetalous, c. 3-6 mm, shorter than petals, filaments adnate to the corolla-tube. Nectar scales square. Follicles 5-6, erect, 7.5-13 x 0.8-1.3 mm. Seeds 18-30 per fruit, oblong, brown, with longitudinal striae, 0.8-1 x 0.2-0.3 mm, ± winged at both ends.

Roots numerous, tufted, slender. Root crown stout. Leaves linear, 0.5-2 cm. Flowering stems 1-4, 20-25 cm. Inflorescence corymbiform, many flowered; bracts oblong to lanceolate, smaller than leaves, apex obtuse; pedicels 1-2 mm. Sepals lanceolate-oblong, to 3 mm, apex obtuse. Corolla reddish, drying golden-yellow, funnelform; tube ca. 6 mm; lobes lanceolate, ca. 6 mm. Stamens 10-12; antesepalous ones 3-4 mm; epipetalous ones ca. 3 mm, inserted at corolla base; anthers ca. 0.9 mm. Nectar scales 5 or 6, transversely broad, small. Styles slender, ca. 2 mm. Follicles lanceolate, ca. 1 cm. Seeds ellipsoid-oblong, ± winged at both ends. Fl. Apr-May.

Distribution: Pakistan, Russia, Mongolia, Kazakstan, China (Xinjiang).

Fl. Per.: April-June.

Grows from 1500-3600 m on rocky hilly slopes.

N Xinjiang (Shawan Xian) [Kazakhstan, Mongolia, Russia].

Cotyledon lievenii Ledebour, Fl. Altaic. 2: 197. 1830; Sedum lievenii (Ledebour) Raymond-Hamet.

Pseudosedum lievenii là một loài thực vật có hoa trong họ Crassulaceae. Loài này được (Ledeb.) A.Berger miêu tả khoa học đầu tiên năm 1930.

合景天（学名：Pseudosedum lievenii）为景天科合景天属的植物。分布在俄罗斯以及中国大陆的新疆等地，生长于海拔1,000米至1,900米的地区，目前尚未由人工引种栽培。