- Scientific Name: Merremia hederacea (Burm.f.) Hallier f.
- Ref: Bot. Jahrb. Syst. 18:118. 1894
- Synonyms: Convolvulus flavus Willd.; Evolvulus hederaceus Burm.f.
- English Common Name: ivy woodrose
- Chinese Common Name: 篱栏网 lílán∙wǎng, 篱网藤 líwǎng∙téng, 犁头网 lítóu∙wǎng, 小花山猪菜 xiǎohuā shān∙zhūcài, 金花茉栾藤 jīnhuā mòluán∙téng, 鱼黄草 yúhuáng∙cǎo
- Japanese Common Name: ツタノハヒルガオ [蔦の葉昼顔] tsutanohahirugao
- Family: Convolvulaceae
- Genus: Merremia
- Distribution: Scrub, grassy roadsides in tropical areas; 100-800 m. Fujian, Guangdong, Guangxi, Hainan, Jiangxi, Taiwan, Yunnan [?Bangladesh, Cambodia, India, Indonesia, Japan (Ogasawara and Ryukyu Islands), Laos, Malaysia, Myanmar, Nepal, New Guinea, Pakistan, Philippines, Sri Lanka, Thailand, Vietnam; Africa, N Australia, Pacific Islands]
- Photo: 09/21/2019, Zijingang Campus, Zhejiang University
Herbs, twining or prostrate; axial parts often minutely tuberculate. Stems glabrous or sparsely hirsute, rooting at nodes. Petiole 0.5-5 cm, glabrous or pubescent; leaf blade cordate-ovate, 1.5-7.5 X 1-5 cm, subglabrous to sparsely puberulent, base cordate or broadly cordate, margin entire, irregularly crenate, or 3-lobed. Inflorescences (1-) or few to many flowered, umbelliform, cymose in fruit; peduncle (0.3-)0.8-5 cm, thicker than petiole; bracts early deciduous, narrowly obovate. Pedicel 2-5 mm. Sepals broadly obovate to spatulate or oblong, reflexed in fruit, unequal; outer 2 sepals 3.5-4 mm; inner 3 ca. 5 mm, glabrous, apex emarginate and distinctly mucronate, mucro directed outward. Corolla yellow, campanulate, 6-10 mm, outside glabrous, inside villous basally. Stamens ca. as long as corolla; filaments sparsely villous basally. Ovary globose, glabrous; stigma globose. Capsule depressed globose or broadly conical, 5-6 mm, reticulate (but not coarsely) wrinkled. Seeds trigonous-globose, 2.5-3.5 mm, puberulent to glabrous or woolly along angles and at hilum. 2n = 30*. (Flora of China)