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''Euonymus hamiltonianus'' is a species of flowering plant in the family Celastraceae known by the common names Hamilton's spindletree, Hamilton's spindle, and Himalayan spindle. It is native to Asia, where it is distributed in Afghanistan, Russia, China, Japan, Korea, India, Nepal, Pakistan, and Burma.〔(''Euonymus hamiltonianus''. ) Germplasm Resources Information Network (GRIN).〕 This is one of the most common ''Euonymus'' species.〔(''Euonymus hamiltonianus''. ) Flora of China.〕 It is cultivated in gardens and landscapes in other parts of the world. In the wild, this species may grow to be a shrub of 3 meters or a tree up to 20 meters tall. The leaf blades are somewhat oval with pointed tips and measure up to 15 centimeters long. They are leathery to papery in texture with rough surfaces and slightly wavy edges. The inflorescence is a cymose cluster of several white flowers, each nearly a centimeter wide. The brown, yellowish, or reddish fruit capsule splits into four sections holding brown seeds with orange arils.〔 This species includes several varieties which some authorities maintain as separate species,〔Schulz, B. (2006). (Studies of fruit and seed characters of selected ''Euonymus'' species. ) International Dendrology Society.〕 including ''Euonymus maackii'' and ''E. yedoensis''. ''Euonymus bungeanus'' is included in var. ''maackii''.〔 Like some other spindles, this plant is cultivated as an ornamental for its fall foliage, which can be many bright shades of red, pink, and yellow. The fruits and large seeds are also considered attractive. Cultivars include 'Coral Charm', which has light pink fruit capsules containing seeds with red arils, and 'Red Elf', a shrubbier breed with dark pink fruits and seeds with orange-red arils.〔Buchan, U. (In focus: ''Euonymus''. ) ''The Daily Telegraph''. September 22, 2001.〕 A number of novel chemical compounds have been isolated from this plant, including the coumarins euonidiol and euoniside〔Tantray, M. A., et al. (2008). (Two new coumarins from ''Euonymus hamiltonianus''. ) ''Chemistry of Natural Compounds'' 44(1) 10-12.〕 and several triterpenes.〔Tantray, M. A., et al. (2009). (Glutinane triterpenes from the stem bark of ''Euonymus hamiltonianus''. ) ''Chemistry of Natural Compounds'' 45(3) 377-80.〕 ==References== 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「Euonymus hamiltonianus」の詳細全文を読む スポンサード リンク
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