black-eyed Susan or yellow daisy, North American daisylike
wildflower ( Rudbeckia hirta ) of the family Asteraceae (aster
family) with yellow rays and a dark brown center. It is a weedy
biennial or annual and grows in dry places. The black-eyed Susan
and the other rudbeckias are also called yellow coneflowers. The
most widely cultivated is the golden glow ( R. laciniata
hortensia ), a tall double-blossomed perennial. Black-eyed
Susans are classified in the division Magnoliophyta, class
Magnoliopsida, order Asterales, family Asteraceae. The Columbia
Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia
University Press. All rights reserved. More on black-eyed Susan
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