高い位の人が持つ笏（しゃく）をこの木で作ったことから、一位の位にちなんでこの名がある。深山に生える常緑高木。樹皮は赤褐色で縦に浅く裂ける。雌雄異株で3～4月に咲く。
病・虫
強
乾湿
中間地
日照
中～陽
栽培のコツ
土壌は選ばないが土中湿度を保つように植えると良く育つ
イチイ
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