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''Buddleja macrostachya'' is a large deciduous shrub or small tree with a vast distribution, from Xizang (Tibet) through western China, Bhutan, Sikkim, northern India, Bangladesh, Myanmar (Burma), to Thailand and Vietnam, growing in scrub on mountain slopes to an altitude of 3,200 m, and along rivers in forests.〔Li, P. T. & Leeuwenberg, A. J. M. (1996). Loganiaceae, in Wu, Z. & Raven, P. (eds) ''Flora of China'', Vol. 15. Science Press, Beijing, and Missouri Botanical Garden Press, St. Louis, USA. ISBN 978-0915279371 (online at www.efloras.org )〕 The species was named and described by Wallich ex Bentham in 1835.〔Stuart, D. (2006). ''Buddlejas''. RHS Plant Collector Guide. Timber Press, Oregon, USA. ISBN 978-0-88192-688-0〕 Leeuwenberg sank several species (see Synonyms) as ''macrostachya'' owing to the similarity of the individual flowers, whilst acknowledging that the structure of the inflorescences varied, from continuous (e.g. ''B. cylindrostachya'') to interrupted (e.g. ''B. hookeri''); he also considered ''macrostachya'' very closely allied to ''B. forrestii''.〔Leeuwenberg, A. J. M. (1979) ''The Loganiaceae of Africa XVIII Buddleja L. II, Revision of the African & Asiatic species''. pp. 133 – 136. H. Veenman & Zonen, Wageningen, Nederland.〕 ==Description== ''B. macrostachya'' grows 1 – 6 m in height, flowering from March to September in the wild. The branchlets are quadrangular, and winged, stellate tomentose when young. The leaves are sessile or subsessile, narrowly to very narrowly elliptic, and hugely variable in size, ranging from 4 – 45 cm long by 1–15 cm wide, mostly stellate tomentose, the margins crenate-serrate, and the apex acuminate. The pendent terminal inflorescences comprise dense cylindrical panicles 5 – 20 cm long by 2.5 – 4 cm wide, the corollas purple, mauve, lilac or pale pink, with orange to red throats.〔 2''n'' = 114.〔Chen, G, Sun, W-B, & Sun, H. (2007). Ploidy variation in Buddleja L. (Buddlejaceae) in the Sino - Himalayan region and its biogeographical implications. ''Botanical Journal of the Linnean Society.'' 2007, 154, 305 – 312. The Linnean Society of London.〕 Image:B. macrostachya winged stem.jpg|Winged Stem Image:B. macrostachya foliage.jpg|Leaf Image:B. macrostachya foliage 2.jpg|Foliage 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「Buddleja macrostachya」の詳細全文を読む スポンサード リンク
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