| Share
 

black-eyed Susan

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 from Infoplease:

See more Encyclopedia articles on: Plants


Premium Partner Content
HighBeam Research
Documents Images and Maps Reference
(from Newspapers, Magazines, Journals, Newswires, Transcripts and Books)

Research our extensive archive of more than 80 million articles from 6,500 publications.

Additional search results provided by HighBeam Research, LLC. © Copyright 2005. All rights reserved.

24 X 7

Private Tutor

Click Here for Details
24 x 7 Tutor Availability
Unlimited Online Tutoring
1-on-1 Tutoring