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FOC | Family List | FOC Vol. 14 | Ericaceae | Ledum

1. Ledum palustre Linnaeus, Sp. Pl. 1: 391. 1753.

杜香 du xiang

Shrubs erect or creeping, to 50 cm tall. Branches slender; young branches densely covered with rust-colored wool; terminal buds conspicuous, ovoid, scales densely rufous-woolly. Leaf blade linear, linear-lanceolate, or narrowly oblong, 1–8 × 0.1–1.5 cm, abaxially densely rufous-hairy or woolly, sometimes also white-pubescent, with raised midvein, adaxially dark green and wrinkled, margin strongly or slightly recurved. Inflorescence many-flowered; pedicels thin. Calyx lobes 5, ovate, 5–8 mm, persistent. Corolla milky white, 5–25 mm, densely rufous-woolly. Stamens 10; filaments pilose at base. Style persistent, 2–4 mm. Capsule ovoid, 3.5–4 mm. Fl. Jun–Jul, fr. Jul–Aug.

Coniferous forests, forest margins, marshes, wet meadows; 400–1400 m. Heilongjiang, Jilin, Nei Mongol [N Korea, Mongolia, Russia; NE Asia, C and N Europe, North America].

1 Leaf blade linear-lanceolate or narrowly oblong, 2–8 × 0.4–1.5 cm.   1b var. dilatatum
+ Leaf blade linear, 1–3 × 0.1–0.3 cm.   (2)
2 (1) Shrubs creeping; leaf blade abaxially densely rufous-hairy and white-pubescent.   1c var. decumbens
+ Shrubs often erect; leaf blade abaxially densely rufous-woolly, not white-pubescent .   1a var. palustre

Lower Taxa


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