5 Surprising Ways Plants Taste Their World (Plus 22 Species That Do It Best)

26. Acacia (Acacia spp.)

Acacia trees are quick to “taste” herbivore damage through ethylene signals released during grazing.
In response, they rapidly increase tannin production, making their leaves less palatable and deterring further browsing by animals.
This chemical defense strategy helps acacias survive in environments with high herbivore pressure. Details