长白山罂粟 chang bai shan ying su

Papaver pseudoradicatum Kitagawa, Rep. Inst. Sci. Res. Manchoukuo 6: 122. 1942 ["pseudo-radicatum"].

Herbs, perennial, small and tufted, 5-15 cm tall, setose throughout. Taproot terete, to 15 cm, 2.5-3 mm in diam. at top, gradually narrowed toward base, with a few lateral roots and fibrous slender roots. Leaves all basal; petiole 2-4 cm, flat, appressed setose, basally with ampliate sheath; blade gray-green, ovate to broadly ovate, 1-2(-4) × 0.8-1.2 cm, both surfaces appressed setose, pinnatifid or bipinnatifid; primary lobes 2 or 3 pairs, narrowly elliptic or oblong, or ovate and 2-4-parted again. Scapes 1 to several from each rosette, densely appressed or inclined-spreading setose. Flowers solitary on scape, 2-3 cm in diam. Flower buds suborbicular to broadly elliptic, densely appressed or inclined-spreading setose. Sepals 2, cymbiform or broadly ovate, 1-1.2 cm. Petals 4, pistachio-colored or yellowish, broadly obovate, 1.8-2.3 cm. Stamens many; filaments filiform, 4-7 mm; anthers yellow, oblong, 1-1.5 mm. Ovary oblong, 4-5 mm, densely appressed setose; stigmas ca. 6, actinomorphic. Capsule obovoid, ca. 1 cm, densely appressed or inclined-spreading setose; stigma disk flat. Fl. Jun-Aug.

Gravel slopes, rocky slopes, alpine tundra; above 1600 m. Jilin (Changbai Shan) [Korea].

Papaver radicatum as a species has a wide distribution in arctic and subarctic regions, which include North America, Greenland, and Russia (including Siberia).