• Scientific Name: Merremia sibirica (L.) Hallier f.
• Ref: Bot. Jahrb. Syst. 16: 552. 1893
• Synonyms: Convolvulus sibiricus L., Mant. Pl. 2: 203. 1771; Ipomoea sibirica (L.) Pers.
• English Common Name: Siberian woodrose
• Chinese Common Name: 北鱼黄草 běi yúhuángcǎo, 西伯利亚鱼黄草 Xībólìyà yúhuángcǎo
• Family: Convolvulaceae
• Genus: Merremia
• Distribution:Roadsides, fields, grassy or shrubby mountain slopes; 600-2800 m. Anhui, Gansu, NW Guangxi, Guizhou, Hebei, Hunan, Jiangsu, Jilin, Shaanxi, Shandong, Shanxi, Sichuan, Yunnan, Zhejiang [Mongolia, NE Russia].
• Photo:09/17/2011,Mt.Daming,Zhejiang

 Herbs twining, subglabrous. Stems striate. Petiole 2-7 cm; leaf blade ovate-cordate, 3-13 X 1.7-7.5 cm, base cordate, margin entire or undulate, apex attenuate-acuminate or caudate. Inflorescences (1-)3-7(-20)-flowered; peduncle often shorter than petiole, 1-6.5 cm, angular or narrowly winged; bracts linear, small. Pedicel 3-15 mm, thicker distally. Sepals elliptic, subequal, 5-7 mm, glabrous, distinctly subulate-mucronate. Corolla pink, pale purplish, or occasionally white, campanulate, 1.2-1.9 cm, glabrous; limb 5-lobed, lobes deltate or nearly circular. Stamens included; anthers not twisted. Ovary glabrous. Capsule ± globose, broadly ovoid, or conical-ovoid, 5-14 mm, apex rounded or acute. Seeds ellipsoid-trigonous or oblong-trigonous, 3-8 mm, glabrous, puberulent, scurfy-scaly, or with swollen-based hairs, apex obtuse or acute. (Flora of China)