ku-chiku vs giant timber bamboo

ku-chiku and giant timber bamboo both are nouns.

Word	Noun	Adjective	Verb	Adverb
ku-chiku	Yes	No	No	No
giant timber bamboo	Yes	No	No	No

As nouns, ku-chiku and giant timber bamboo are synonyms defined as:

ku-chiku and giant timber bamboo: large bamboo having thick-walled culms; native of China and perhaps Japan; widely grown elsewhere

Other synonyms of ku-chiku include madake, Phyllostachys bambusoides.

ku-chiku (noun)	giant timber bamboo (noun)
large bamboo having thick-walled culms; native of China and perhaps Japan; widely grown elsewhere	large bamboo having thick-walled culms; native of China and perhaps Japan; widely grown elsewhere