true sago palm vs Metroxylon sagu

true sago palm and Metroxylon sagu both are nouns.

Word	Noun	Adjective	Verb	Adverb
true sago palm	Yes	No	No	No
Metroxylon sagu	Yes	No	No	No

As nouns, true sago palm and Metroxylon sagu are synonyms defined as:

true sago palm and Metroxylon sagu: Malaysian palm whose pithy trunk yields sago--a starch used as a food thickener and fabric stiffener; Malaya to Fiji

true sago palm (noun)	Metroxylon sagu (noun)
Malaysian palm whose pithy trunk yields sago--a starch used as a food thickener and fabric stiffener; Malaya to Fiji	Malaysian palm whose pithy trunk yields sago--a starch used as a food thickener and fabric stiffener; Malaya to Fiji