scammonyroot vs morning glory

scammonyroot and morning glory both are nouns.

Word	Noun	Adjective	Verb	Adverb
scammonyroot	Yes	No	No	No
morning glory	Yes	No	No	No

As nouns, morning glory is a hypernym of scammonyroot; that is, morning glory is a word with a broader meaning than scammonyroot:

scammonyroot: tropical American prostrate or climbing herbaceous perennial having an enormous starchy root; sometimes held to be source of the sweet potato
morning glory: any of various twining vines having funnel-shaped flowers that close late in the day

scammonyroot (noun)	morning glory (noun)
tropical American prostrate or climbing herbaceous perennial having an enormous starchy root; sometimes held to be source of the sweet potato	any of various twining vines having funnel-shaped flowers that close late in the day