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「いぬがや（犬榧）」の園芸品種です。和名に朝鮮とついていますが、何の関係もありません。幹からよく分枝して、枝は直立します。「いぬがや」の葉が２列に並んでつくのに対して、螺旋状に互生します。また葉の色も濃緑色です。ときどき先祖返りで、「いぬがや」と同じ２列に並んだ葉もつくそうです。
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イヌガヤ科イヌガヤ属の常緑低木で、学名は Cephalotaxus harringtonia f. fastigiata。英名はありません。
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"Chosen-maki" (Cephalotaxus harringtonia f. fastigiata) belongs to the family Cephalotaxaceae. It is a small evergreen tree that is a cultivar of "Japanese plum yew" (Cephalotaxus harringtonia). The Japanese name says Korea, but it has nothing to do with it. It branches well from the trunk and the branches stand upright. While the leaves of "Japanese plum yew" are lined up in two rows, they alternate in a spiral. The color of the leaves is also dark green. Occasionally, it seems that the leaves that are lined up in the same two rows as "Japanese plum yew" are also attached by throwing back.
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京都市左京区「京都府立植物園」にて、2003年07月06日撮影。
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ちょうせんまき (朝鮮槙)
shu@botanic.jp