bast vs phloem

bast and phloem both are nouns.

Word	Noun	Adjective	Verb	Adverb
bast	Yes	No	No	No
phloem	Yes	No	No	No

As nouns, bast and phloem are synonyms defined as:

bast and phloem: (botany) tissue that conducts synthesized food substances (e.g., from leaves) to parts where needed; consists primarily of sieve tubes

bast (noun)	phloem (noun)
(botany) tissue that conducts synthesized food substances (e.g., from leaves) to parts where needed; consists primarily of sieve tubes	(botany) tissue that conducts synthesized food substances (e.g., from leaves) to parts where needed; consists primarily of sieve tubes
strong woody fibers obtained especially from the phloem of from various plants