Penstemon palmeri vs scented penstemon

Penstemon palmeri and scented penstemon both are nouns.

Word	Noun	Adjective	Verb	Adverb
Penstemon palmeri	Yes	No	No	No
scented penstemon	Yes	No	No	No

As nouns, Penstemon palmeri and scented penstemon are synonyms defined as:

Penstemon palmeri and scented penstemon: fragrant puffed-up white to reddish-pink flowers in long narrow clusters on erect stems; Arizona to New Mexico and Utah

Other synonyms of Penstemon palmeri include balloon flower.

Penstemon palmeri (noun)	scented penstemon (noun)
fragrant puffed-up white to reddish-pink flowers in long narrow clusters on erect stems; Arizona to New Mexico and Utah	fragrant puffed-up white to reddish-pink flowers in long narrow clusters on erect stems; Arizona to New Mexico and Utah