| Noun | 1. | prince's-plume - annual with broadly ovate leaves and slender drooping spikes of crimson flowers; southeastern Asia and Australia; naturalized in North America | |
| 2. | prince's-plume - perennial of southwestern United States having leathery blue-green pinnatifid leaves and thick plumelike spikes of yellow flowers; sometimes placed in genus Cleome | |
| 3. | prince's-plume - 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 cerealamaranth - any of various plants of the genus Amaranthus having dense plumes of green or red flowers; often cultivated for food | |