cape hyacinth vs summer hyacinth

cape hyacinth and summer hyacinth both are nouns.

Word	Noun	Adjective	Verb	Adverb
cape hyacinth	Yes	No	No	No
summer hyacinth	Yes	No	No	No

As nouns, cape hyacinth and summer hyacinth are synonyms defined as:

cape hyacinth and summer hyacinth: southern African herb with white bell-shaped flowers

Other synonyms of cape hyacinth include Galtonia candicans, Hyacinthus candicans.

cape hyacinth (noun)	summer hyacinth (noun)
southern African herb with white bell-shaped flowers	southern African herb with white bell-shaped flowers