I have been growing the Japanese Varnish Tree(Rhus verniciflua). Injury to the branches will release a black ooze called urushiol, which can cause painful rashes on susceptible people.
Tag Archives: Japanese Varnish Tree
Compound Tree Leaves
Toona sinensis is a tree with edible young leaves, also called Chinese Mahogany. Toxicodendron vernicifluum is related to Poison Ivy and has urushiol in it.