English: Celandine-poppy; Wood poppy; Poppywort.
Genus: 3 species.
Region: eastern North America and China.
Botany: perennial herbs; stems bristly; leaves lobed, wavy edges; flowers yellow, four petals, long style
Taxonomy: close to Hylomecon vernalis with one flower on each stem; close to
Chelidonium majus.