prince's-plume vs prince's-feather

prince's-plume and prince's-feather both are nouns.

Word	Noun	Adjective	Verb	Adverb
prince's-plume	Yes	No	No	No
prince's-feather	Yes	No	No	No

As nouns, prince's-plume and prince's-feather are synonyms defined as:

prince's-plume and prince's-feather: tall showy tropical American annual having hairy stems and long spikes of usually red flowers above leaves deeply flushed with purple; seeds often used as cereal

As nouns, prince's-plume and prince's-feather are synonyms defined as:

prince's-plume and prince's-feather: annual with broadly ovate leaves and slender drooping spikes of crimson flowers; southeastern Asia and Australia; naturalized in North America

Other synonyms of prince's-plume include kiss-me-over-the-garden-gate, Polygonum orientale, princess feather.

prince's-plume (noun)	prince's-feather (noun)
perennial of southwestern United States having leathery blue-green pinnatifid leaves and thick plumelike spikes of yellow flowers; sometimes placed in genus Cleome	annual with broadly ovate leaves and slender drooping spikes of crimson flowers; southeastern Asia and Australia; naturalized in North America
tall showy tropical American annual having hairy stems and long spikes of usually red flowers above leaves deeply flushed with purple; seeds often used as cereal	tall showy tropical American annual having hairy stems and long spikes of usually red flowers above leaves deeply flushed with purple; seeds often used as cereal
annual with broadly ovate leaves and slender drooping spikes of crimson flowers; southeastern Asia and Australia; naturalized in North America