Related Clues:
- Iowa's tree
- Oklahoma's ___ Tree National golf course
- Sturdy hardwood tree
- Symbol of mightiness
- Strength symbol
- Acorn creator
- Tree on a Connecticut state quarter
- 27 Across makeup, maybe
- 'Charter' tree
- Bourbon flavoring
- "Charter" tree
- Acorn provider
- One of Iowa's state symbols
- Creosote provider
- ___ Ridge, Tenn.