Definition that contains sour gum
- family nyssaceae a family of dicotyledonous trees of order Myrtales that includes the sour gum trees
- nyssaceae a family of dicotyledonous trees of order Myrtales that includes the sour gum trees
- sour-gum family a family of dicotyledonous trees of order Myrtales that includes the sour gum trees
- tupelo family a family of dicotyledonous trees of order Myrtales that includes the sour gum trees