| Family | PAPAVERACEAE |
| Genus species | Hylomecon japonica (Thunb.) Prantl |
| Synonyms | Chelidonium japonicum Thunb. |
| Hylomecon dissecta (Fedde) Honda | |
| Hylomecon lanceolata (Yatabe) Honda | |
| 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 | tuft |
| 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 |
| Territory |
Asia-Temperate
China (China South-Central , China North-Central , China Southeast ) Eastern Asia (Japan) |
| Bibliography | Plants of the World online powo.science.kew.org International Plant Names Index www.ipni.org |
| Comments | PAPAVERACEAE
japonica dentipetala W.Du, Phytotaxa 419: 215 (2019)
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