| Family | PAPAVERACEAE |
| Genus species | Hylomecon japonica (Thunb.) Prantl |
| Bibliography | Nat. Pflanzenfam. [H.G.A.Engler & K.A.E.Prantl] 3(2): 139 (1889) |
| Native Range | c. & ec. China, Japan |
| Primary Biome | Temperate |
| Habitat | thickets and woods |
| Altitude | 300-2400m |
| Description | basal leaves petiolate, oblong-lanceolate, pinnate, irregularly crenate, stem leaves 1-2, flowers several, to 5cm across, tetramerous |
| Size | 15-40cm |
| Color | yellow |
| Bloom | late spring, summer |
| Ca | - |
| Type | perennial |
| Cultivation | cold, shady site with a humous, moist soil alpine house, moist, humous soil, shade |
| Propagation | seed in winter, uncovered, moist, germ. 1-3 months, 13-18°C division in early spring; cuttings in late summer |
| Synonyms | Chelidonium japonicum Thunb. Chelidonium japonicum f. dissectum (Fedde) Ohwi Chelidonium japonicum f. lanceolatum (Yatabe) Ohwo Chelidonium japonicum f. palliflavidum Moriya Chelidonium uniflorum Siebold & Zucc. Hylomecon dissecta (Fedde) Honda Hylomecon hylomeconoides var. dissectifolia Y.N.Lee Hylomecon japonica var. dissecta Fedde Hylomecon japonica f. dissecta (Franch. & Sav.) S.Akiyama Hylomecon japonica f. lanceolata (Yatabe) S.Akiyama Hylomecon japonica var. subincisa Fedde Hylomecon lanceolata (Yatabe) Honda Stylophorum japonicum (Thunb.) Miq. Stylophorum japonicum var. dissectum Franch. & Sav. Stylophorum lanceolatum Yatabe |
| Territory | 3 Asia-Temperate 36 China (CHC China South-Central, CHN China North-Central, CHS China Southeast) 38 Eastern Asia (JAP Japan) |