Description from Flora of China
Pyrola americana Swartz var. dahurica Andres, Deutsche Bot. Monatsschr. 22: 50. 1911; P. forrestiana Andres subsp. dahurica (Andres) Křísa; P. incarnata (de Candolle) Freyn subsp. dahurica (Andres) Křísa; P. rotundifolia Linnaeus subsp. dahurica (Andres) Andres.
Herbs 15–23 cm tall. Rhizome long, slender, branched. Leaves (2 or)3–6(or 7), crowded at base of caudex; petioles 2.8–4.5 cm; leaf blade light green abaxially, green adaxially, suborbicular or broadly ovate, (2.5–)3–5 × 2.5–4 cm, leathery, base broadly cuneate or orbicular, margin entire or slightly crenate, apex obtuse or rounded. Raceme 5–10-flowered, 4–8(–10) cm. Pedicel 4–5 mm; bracts ligulate or lanceolate, 4–5 mm. Flowers nodding, spreading, ca. 1 cm in diam. Sepals ligulate, rarely lanceolate, 3–4 × ca. 1.5 mm, margin remotely denticulate, apex often acute. Petals white, obovate, 5–7 × 4–5 mm, apex rounded. Filaments short, ca. 5 mm, glabrous; anthers yellow, 2.5–2.7 × 1–1.5 mm, tubules present. Style slightly exserted, 6–7 mm, upper part curved upward, dilated at apex into a ring, conspicuously so at least at fruiting. Capsule ca. 5 mm in diam. Fl. Jul, fr. Aug.
Coniferous forests, mixed forests, becoming dominant in herbaceous layer; 700–1800 m. Heilongjiang, Jilin, Liaoning, Nei Mongol [Mongolia].