youth-on-age n 1: vigorous perennial herb with flowers in erect racemes and having young plants develop at the junction of a leaf blade and the leafstalk [syn: {pickaback plant}, {piggyback plant}, {youth-on-age}, {Tolmiea menziesii}]
youth-on-age \youth`-on-age"\ n. (Bot.) A vigorous perennial herb ({Tolmiea menziesii}) with flowers in erect racemes and having young plants develop at the junction of a leaf blade and the leafstalk. Syn: pickaback plant, piggyback plant. [WordNet 1.5]