根こん生せい葉ようMeanings1nounradical leaf; rosette leafbotany›Botanical term for leaves that grow directly from the base of the stem, often forming a rosette.タンポポの根こん生せい葉ようは地じ面めんに広ひろがっている。The dandelion's radical leaves spread out along the ground.この植しょく物ぶつは根こん生せい葉ようがロゼット状じょうになる。This plant's radical leaves form a rosette.