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''Ilex verticillata'', the winterberry, is a species of holly native to eastern North America in the United States and southeast Canada, from Newfoundland west to Ontario and Minnesota, and south to Alabama.〔(USDA ) . accessed 11.1.2011〕〔Germplasm Resources Information Network: (''Ilex verticillata'' )〕 Other names that have been used include Black Alder Winterberry, Brook Alder, Canada holly ,〔(Nova Scotia Wild Flora )〕 Coralberry, Deciduous Holly, Deciduous Winterberry, False alder, Fever bush, Inkberry, Michigan Holly, Possumhaw, Swamp Holly, Virginian Winterberry, or Winterberry Holly. The species occurs particularly in wetland habitats, but also on dry sand dunes and grassland. The berries are an important food resource for numerous species of birds.〔New York Metropolitan Flora: (''Ilex verticillata'' )〕 ==Description== ''Ilex verticillata'' is a shrub growing to tall. It is one of a number of hollies which are deciduous, losing their leaves in the fall. In wet sites, it will spread to form a dense thicket, while in dry soil it remains a tight shrub. The leaves are glossy green, 3.5–9 cm long, 1.5–3.5 cm broad, with a serrated margin and an acute apex. The flowers are small, 5 mm diameter, with five to eight white petals. The fruit is a globose red drupe 6–8 mm diameter, which often persists on the branches long into the winter, giving the plant its English name. Like most hollies, it is dioecious, with separate male and female plants; the proximity of at least one male plant is required to pollenize the females in order to bear fruit.〔〔Digital Flora of Newfoundland and Labrador: (Aquifoliaceae: Holly Family )〕〔Bioimages: (''Ilex verticillata'' )〕 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「Ilex verticillata」の詳細全文を読む スポンサード リンク
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