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Kalmia angustifolia
''Kalmia angustifolia'' is a flowering shrub in the family Ericaceae, commonly known as sheep laurel. It is distributed in eastern North America from Ontario and Quebec south to Virginia.() It grows commonly in dry habitats in the boreal forest, and may become dominant over large areas after fire or logging.〔Weetman, G. F. 1983. Forestry practices and stress on Canadian forest land. pp. 260–301. In W. Simpson-Lewis, R. McKechnie, and V. Neimanis (eds.) Stress on Land in Canada. Ottawa: Lands Directorate, Environment Canada.〕 Like many plant species of infertile habitats it has evergreen leaves and mycorrhizal associations with fungi.〔Keddy, P.A. 2007. (Plants and Vegetation: Origins, Processes, Consequences ).Cambridge University Press, Cambridge, UK. 666 p.〕 It is also found in drier area of peat bogs.
==Description==
The attractive small, deep crimson-pink flowers are produced in early summer. Each has five sepals, with a corolla of five fused petals, and ten stamens fused to the corolla. They are pollinated by bumble bees and solitary bees. Each mature capsule contains about 180 seeds.〔Hall, I. V., Jackson, L. P. and Everett, C. F. 1973. The biology of Canadian weeds. 1. ''Kalmia angustifolia'' L. Canadian Journal of Plant Science 53: 865–873.〕
In the wild the plant may vary in height from . New shoots arise from dormant buds on buried rhizomes. This process is stimulated by fire.〔Hall, I. V., Jackson, L. P. and Everett, C. F. 1973. The biology of Canadian weeds. 1. ''Kalmia angustifolia'' L. Canadian Journal of Plant Science 53: 865–873.〕 The narrow evergreen leaves, pale on the underside, have a tendency to emerge from the stem in groups of three. A peculiarity of the plant is that clusters of leaves usually terminate the woody stem, for the flowers grow in whorls or in clusters below the stem apex.〔Blanchan, Neltje. 1917. Wild Flowers Worth Knowing Doubleday, New York.Project Gutenberg Literary Archive Foundation〕
Numerous cultivars have been selected for garden use, of which ''K. angustifolia'' f. ''rubra''〔(【引用サイトリンク】url=http://apps.rhs.org.uk/plantselector/plant?plantid=1088 )〕 has gained the Royal Horticultural Society's Award of Garden Merit.
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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