Related Clues:
- Some stately trees
- Wide-spreading trees
- Flora in an O'Neill title
- Boulevard-lining trees, sometimes
- Barrel and mast producers
- Shady group?
- Shady bunch?
- Dumbarton ___ Conference (1944 meeting that laid the groundwork for the U.N.)
- O'Neill title flora
- Homes for squirrels
- Kentucky ___ (pre-Derby race)
- National Mall liners
- Part of the New Haven landscape
- Twelve ___ ("GWTW" plantation)
- National Mall trees