noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   Smooth hydrangea (Hydrangea arborescens), native to the eastern US, from Vermont and Florida to Louisiana and Oklahoma.

Etymology

From seven + bark, since the stem bark tends to peel off in successive layers.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.