golden aster

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun Any of various North American plants of the composite family, especially of the genera Chrysopsis and Heterotheca, having yellow, rayed flower heads.

from The Century Dictionary.

• noun any plant of the genus Chrysopsis, aster-like composites of North America with bright goldenyellow flowers. C. Mariana, the Maryland golden aster, is very abundant in the eastern United States and one of the handsomest wild flowers, blooming from July to September.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun any of several shrubby herbs or subshrubs of the genus Chrysopsis having bright golden-yellow flower heads that resemble asters; throughout much of United States and into Canada