Related Clues:

• Some common shady trees
• Acorn-producing trees
• Trees that yield durable wood
• Boulevard liners, often
• Mighty ones grow from little acorns
• They often throw shade
• Sources of acorns
• Common shade trees
• Trees (of late, prone to disease)
• Eugene O'Neill's 'Desire Under the ___'
• Things that suffered a 20th-century blight
• Trees that line the National Mall
• 'Slippery' specimens
• Trees with coarse-grained wood
• Blighted trees