eastern chinquapin vs chinquapin

eastern chinquapin and chinquapin both are nouns.

Word	Noun	Adjective	Verb	Adverb
eastern chinquapin	Yes	No	No	No
chinquapin	Yes	No	No	No

As nouns, eastern chinquapin and chinquapin are synonyms defined as:

eastern chinquapin and chinquapin: shrubby chestnut tree of southeastern United States having small edible nuts

Other synonyms of eastern chinquapin include Allegheny chinkapin, Castanea pumila, dwarf chestnut.

eastern chinquapin (noun)	chinquapin (noun)
shrubby chestnut tree of southeastern United States having small edible nuts	small nut of either of two small chestnut trees of the southern United States; resembles a hazelnut
	shrubby chestnut tree of southeastern United States having small edible nuts
	shrubby tree closely related to the Allegheny chinkapin but with larger leaves; southern midwestern United States