Indian paintbrush vs Asclepias tuberosa

Indian paintbrush and Asclepias tuberosa both are nouns.

Word	Noun	Adjective	Verb	Adverb
Indian paintbrush	Yes	No	No	No
Asclepias tuberosa	Yes	No	No	No

As nouns, Indian paintbrush and Asclepias tuberosa are synonyms defined as:

Indian paintbrush and Asclepias tuberosa: erect perennial of eastern and southern United States having showy orange flowers

Other synonyms of Indian paintbrush include butterfly weed, chigger flower, chiggerflower, orange milkweed, pleurisy root, tuber root.

Indian paintbrush (noun)	Asclepias tuberosa (noun)
any of various plants of the genus Castilleja having dense spikes of hooded flowers with brightly colored bracts	erect perennial of eastern and southern United States having showy orange flowers
erect perennial of eastern and southern United States having showy orange flowers