prince's-plume
noun
1.
annual with broadly ovate leaves and slender drooping spikes of crimson flowers; southeastern Asia and Australia; naturalized in North America
2.
perennial of southwestern United States having leathery blue-green pinnatifid leaves and thick plumelike spikes of yellow flowers; sometimes placed in genus Cleome
3.
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