black bamboo vs Phyllostachys nigra

black bamboo and Phyllostachys nigra both are nouns.

Word	Noun	Adjective	Verb	Adverb
black bamboo	Yes	No	No	No
Phyllostachys nigra	Yes	No	No	No

As nouns, black bamboo and Phyllostachys nigra are synonyms defined as:

black bamboo and Phyllostachys nigra: small bamboo having thin green culms turning shining black

Other synonyms of black bamboo include kuri-chiku.

black bamboo (noun)	Phyllostachys nigra (noun)
small bamboo having thin green culms turning shining black	small bamboo having thin green culms turning shining black