giant bamboo vs Dendrocalamus giganteus

giant bamboo and Dendrocalamus giganteus both are nouns.

Word	Noun	Adjective	Verb	Adverb
giant bamboo	Yes	No	No	No
Dendrocalamus giganteus	Yes	No	No	No

As nouns, giant bamboo and Dendrocalamus giganteus are synonyms defined as:

giant bamboo and Dendrocalamus giganteus: immense tropical southeast Asian bamboo with tough hollow culms that resemble tree trunks

Other synonyms of giant bamboo include kyo-chiku.

giant bamboo (noun)	Dendrocalamus giganteus (noun)
immense tropical southeast Asian bamboo with tough hollow culms that resemble tree trunks	immense tropical southeast Asian bamboo with tough hollow culms that resemble tree trunks