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Buddleja stachyoides : ウィキペディア英語版 | Buddleja stachyoides ''Buddleja stachyoides'' is the most widespread member of the genus in South America, endemic to woodland edges, roadsides and riversides in Argentina, Brazil, Bolivia, Paraguay, and Uruguay.〔Norman, E. M. (2000). Buddlejaceae. ''Flora Neotropica 81''. New York Botanical Garden, USA〕 Introduced to the UK as ''B. australis'' in 1822, when the Royal Botanic Garden Edinburgh grew it from seed received from a Russian source,〔Stuart, D. (2006). ''Buddlejas''. RHS Plant Collectors Guide. Timber Press, Oregon. ISBN 978-0-88192-688-0.〕 the plant was described and renamed ''B. stachyoides'' by Chamisso & von Schlechtendal in 1827.〔Cham. & Schldtl., (1827). ''Linnaea'' 2: 597, 1827.〕 ==Description== ''B. stachyoides'' is a shrub 1–3.5 m high. Unlike most South American members of the genus which are cryptically dioecious, ''stachyoides'' is hermaphroditic, bearing perfect flowers. The young branches are quadrangular, occasionally winged, and covered with a greyish tomentum, bearing leaves subsessile or with a petiole <1 cm, ovate or oblong-lanceolate, the blade 5–20 cm long by 3–8 cm wide, membranaceous, glabrescent above, and tomentose below. The yellow to pale orange inflorescence is unbranched, 10– 20 cm long, comprising 4–20 pairs of axillary cymes; the tubular corolla is 5–7 mm long. Ploidy: ''2n'' = 38.〔
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