burr oak vs mossycup oak

burr oak and mossycup oak both are nouns.

Word	Noun	Adjective	Verb	Adverb
burr oak	Yes	No	No	No
mossycup oak	Yes	No	No	No

As nouns, burr oak and mossycup oak are synonyms defined as:

burr oak and mossycup oak: medium to large deciduous oak of central and eastern North America with ovoid acorns deeply immersed in large fringed cups; yields tough close-grained wood

Other synonyms of burr oak include bur oak, mossy-cup oak, Quercus macrocarpa.

burr oak (noun)	mossycup oak (noun)
medium to large deciduous oak of central and eastern North America with ovoid acorns deeply immersed in large fringed cups; yields tough close-grained wood	medium to large deciduous oak of central and eastern North America with ovoid acorns deeply immersed in large fringed cups; yields tough close-grained wood