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FOC | Family List | FOC Vol. 8 | Saxifragaceae | Saxifraga

190. Saxifraga cernua Linnaeus, Sp. Pl. 1: 403. 1753.

零余虎耳草 ling yu hu er cao

Lobaria cernua (Linnaeus) Haworth; Saxifraga cernua f. bulbillosa Engler & Irmscher; S. cernua var. linnaeana Seringe; S. cernua f. ramosa J. G. Gmelin; S. cernua f. simplicissima Ledebour.

Stem branched or simple, 6-25 cm tall, glandular pubescent, with conspicuous, red or brown bulbils in axils of cauline leaves. Basal leaves with petiole 3-8 cm, crisped glandular villous near base, elsewhere glandular pubescent; leaf blade reniform, 0.7-1.5 × 0.9-1.8 cm, margin generally 5-7-lobed; lobes broadly ovate, glandular pubescent. Proximal cauline leaves with petiole 0.3-3.4 cm, glandular pubescent; leaf blade reniform, 0.8-2 × 1-2.4 cm, glandular pubescent, margin 5-7(-9)-lobed; distal cauline leaves with petiole shorter, leaf blade 3-lobed at margin. Cyme 2-5-flowered or flower solitary; bulbils present in bract axils; pedicels 0.6-3 cm, glandular pubescent. Sepals erect, elliptic or ovate to suboblong, 3-3.7 × 1-2.8 mm, abaxially and marginally glandular pubescent, veins 3(-7), not, partly, or fully confluent at apex, apex subobtuse or acute. Petals white or yellowish, obovate to narrowly so, 4.5-10.5 × 2.1-4.1 mm, 3-8(-10)-veined, base gradually contracted into a claw 1.2-1.8 mm, apex retuse or obtuse. Stamens 4-5.5 mm. Ovary subsuperior, ovoid; styles 0.9-2 mm. Fl. and fr. Jun-Sep. 2n = 36, 48, 50, 52, 56, 60-70.

Forests, forest margins, alpine meadows, alpine rock crevices; 2200-5500 m. WC Hebei (Xiaowutai Shan), S Jilin (Fusong Xian), E Nei Mongol, N Ningxia (Helan Shan), Qinghai, S Shaanxi (Taibai Shan), N Shanxi (Ningwu Xian), W Sichuan, Xinjiang (Bogda Shan), Xizang, NW Yunnan [India, Japan, Korea, Mongolia, Russia; Europe, North America].


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