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Prop root
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Prop root
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Prop root
支柱根
从植物茎上长出的许多不定根,向下深入土壤中,形成的能够支持植物体的辅助根系。如玉米拔节后到抽穗前,靠近地表的节上会环生出几层具有支持作用的支柱根(不定根)。榕树的粗大树干上,会产生许多下垂的气生根,直达地面,穿入土壤中,由于以后次生生长,成为木质化的支柱根。
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