youth-on-age

 

From the way young plantlets sprout from the middle of older leaves.

youth-on-age (uncountable)

1. A perennial plant native to North America and widely planted as an ornamental: Tolmiea menziesii
   • 1972, Hazel Heckman, Island Year, page 132:

     Sometimes flowers of youth-on-age are white streaked with green instead of greenish streaked with purple.

• (Tolmiea menziesii): hedge nettle, piggyback plant, thousand mothers

•   Tolmiea menziesii on Wikipedia.Wikipedia
•   Tolmiea menziesii on Wikispecies.Wikispecies
•   Tolmiea menziesii on Wikimedia Commons.Wikimedia Commons