slender perennial of western North America having weakly bristly leaves and yellow flower heads
of a color midway between yellow and green
of the color intermediate between green and orange in the color spectrum; of something resembling the color of an egg yolk
yellow color or pigment; the chromatic color resembling the hue of sunflowers or ripe lemons
changed to a yellowish color by age
any of numerous composite plants having flower heads with well-developed ray flowers usually arranged in a single whorl
having or covered with protective barbs or quills or spines or thorns or setae etc.