siliqua vs silique

siliqua and silique both are nouns.

Word	Noun	Adjective	Verb	Adverb
siliqua	Yes	No	No	No
silique	Yes	No	No	No

As nouns, siliqua and silique are synonyms defined as:

siliqua and silique: narrow elongated seed capsule peculiar to the family Cruciferae

siliqua (noun)	silique (noun)
narrow elongated seed capsule peculiar to the family Cruciferae	narrow elongated seed capsule peculiar to the family Cruciferae