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Salix sericea : ウィキペディア英語版 | Salix sericea
''Salix sericea'', also known as silky willow, is a shrub in the Salicaceae family that grows in swamps and along rivers in eastern United States and Canada. It is tall and has long, thin, purplish twigs. The leaves are 6–10 cm long, 7–8 mm wide, lanceolate, acuminate, serrulate, dark green and lightly hairy on top, and light green and densely covered with white silky hairs underneath. Mature leaves are glabrous. The petioles are 1 cm long. Catkins are sessile and usually bracteate. ''S. sericea'' blooms in May and fruits in June. ==External links==
*(USDA profile for ''Salix sericea'' )
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Salix sericea」の詳細全文を読む
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