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''Prunus emarginata'', the bitter cherry or Oregon cherry, is a species of ''Prunus'' native to western North America, from British Columbia south to Baja California, and east as far as western Wyoming and New Mexico.〔(Biota of North America Program 2014 county distribution map )〕〔(SEINet, Southwestern Biodiversity, Arizona chapter ) photos, description, distribution map〕 It is often found in recently disturbed areas or open woods on nutrient-rich soil.〔Germplasm Resources Information Network: (''Prunus emarginata'' )〕〔Plants of British Columbia: (''Prunus emarginata'' )〕〔Jepson Flora: (''Prunus emarginata'' )〕 ==Description== ''Prunus emarginata'' is a deciduous shrub or small tree growing to tall with a slender oval trunk with smooth gray to reddish-brown bark with horizontal lenticels. The leaves are long, thin, egg-shaped, and yellowish-green with unevenly sized teeth on either side. The flowers are small, 10–15 mm diameter, with five white petals and numerous hairlike stamens; they are almond-scented, and produced in clusters in spring, and are pollinated by insects. The fruit is a juicy red or purple cherry 7–14 mm diameter, which, as the plant's English name suggests, are bitter. As well as reproducing by seed, it also sends out underground stems which then sprout above the surface to create a thicket.〔〔〔(Flora of North America, ''Prunus emarginata'' (Douglas) Eaton, Man. Bot. ed. 7. 463. 1836. Bitter cherry )〕 There are two varieties:〔〔 *''Prunus emarginata'' var. ''emarginata''. Usually shrubby; young shoots and leaves hairless or only thinly hairy. Most of the species' range. *''Prunus emarginata'' var. ''mollis'' (Dougl.) Brew. A larger tree; young shoots and leaves downy. Oregon north to British Columbia, mainly coastal. 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「Prunus emarginata」の詳細全文を読む スポンサード リンク
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