Answer:

elmtree

Answer	Crossword Clue
ELMTREE	New Haven sight
ELMTREE	Shade source
ELMTREE	Tall Bay State symbol

ELMTREE	Bark beetle's victim
ELMTREE	Source of split-resistant wood
ELMTREE	Stately shade-giver
ELMTREE	Hardwood source
ELMTREE	Shade provider
ELMTREE	North Dakota symbol
ELMTREE	Shade giver
ELMTREE	Something shady

ELMTREE	Emblem of North Dakota
ELMTREE	Symbol of New Haven
ELMTREE	Graceful denizen of Central Park: 2 wds.
ELMTREE	New England's pride.
ELMTREE	Nest site.
ELMTREE	Pride of New England.
ELMTREE	Plant that may reach a height of 130 ft.
ELMTREE	Shade caster

ELMTREE	Shade maker
ELMTREE	Home to some bark beetles
ELMTREE	A Massachusetts symbol
ELMTREE	Site of a William Penn treaty with Indians
ELMTREE	Bay State symbol
ELMTREE	Victim of a Dutch disease
ELMTREE	Bay State emblem
ELMTREE	Stately thing in Browning's "Oh, to be in England ..."

ELMTREE	Target for a certain bark beetle
ELMTREE	State symbol of Massachusetts
ELMTREE	Certain shade giver
ELMTREE	Stately shade source
ELMTREE	Avenue shader
ELMTREE	Street shader
ELMTREE	It has furrowed gray bark
ELMTREE	One state symbol of Massachusetts