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Buddleja farreri
''Buddleja farreri'' is a xerophytic deciduous shrub endemic to Kansu, China, discovered by Reginald Farrer in 1915. Farrer described the shrub's habitat as "..the very hottest and driest crevices, cliffs, walls and banks down the most arid and torrid aspects of the Ha Shin Fang". 〔Bean, W. J. (1981). ''Trees and shrubs hardy in Great Britain'', 7th edition. Murray, London〕〔Farrer, R. (1917). ''On the Eaves of the World.'' London, Edward Arnold.〕 Farrer sent seed to the UK shortly afterwards, and it is from this consignment that all the British specimens have been derived.〔Cotton, A. D. (1947). The spring-flowering buddleias (sic). ''R H S Journal, Vol 72'' 1947 pp 428-430.〕
''B. farreri'' was one of five species sunk as ''Buddleja crispa'' by Leeuwenberg in 1979, 〔Leeuwenberg, A. J. M. (1979) ''The Loganiaceae of Africa XVIII Buddleja L. II, Revision of the African & Asiatic species''. H. Veenman & Zonen, Wageningen, Nederland.〕 and later treated as such in the ''Flora of China''; 〔Li, P. & 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 )〕 however the original epithet is widely retained in horticulture.
==Description==
''B. farreri'' is a deciduous shrub of sparse habit which, left unpruned, grows to a large size. The flowers appear on the old wood before the leaves at the nodes of the previous year's growth, during April in the UK. The lax panicles are < 20 cm in length and pale lavender in colour. The leaves are initially white, owing to a dense coating of hairs, but ultimately become almost glabrous, with a dark green upper surface; the underside remains white and tomentose. Their size and shape are variable, depending on the type of shoot bearing them. Strong shoots from the base will bear large stipules, and broad, winged petioles, very different from those on ordinary shoots.〔
Farrer summarized the plant as a "noble bush with ample flannely foliage",〔 however Bean noted that it is probably the cooler, damper UK climate which prevents the shrub from making the striking display that so impressed Farrer in China. 〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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