bur oak vs mossy-cup oak

bur oak and mossy-cup oak both are nouns.

Word	Noun	Adjective	Verb	Adverb
bur oak	Yes	No	No	No
mossy-cup oak	Yes	No	No	No

As nouns, bur oak and mossy-cup oak are synonyms defined as:

bur oak and mossy-cup 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 bur oak include burr oak, mossycup oak, Quercus macrocarpa.

bur oak (noun)	mossy-cup 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