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Rudbeckia laciniata

Common Name of Species: Green-Headed
Cone Flower
Family: Asteraceae


Entry Author:  C. Friedl, Muhlenberg College
Description: 
The green-headed coneflower can be identified by its greenish yellow central disk, and its soft yellow rays that characteristically arc downwards.
Leaves: 
Leaves are parted, either 3 or 5 times, in a pinnate shape.  The lobes or leaflets of the leaves are not uniform, but irregular
Flowers: 
Flower heads 2 -4 inches wide.  6-10, soft yellow rays arc downwards from the central disk.  Disk is green, to greenish yellow, and due its drooping rays, the disk seems large, raised and like a knob.
Stem:
Stems are branching, tall and smooth.
Height: 3-10 feet tall.
Branching Pattern of Leaves: Leaves grow alternate to one another. 
Conditions/Habitat: 
Can be found growing in swamps, moist thickets and along ponds and streams, where ground is saturated and rich. 
Range:   Throughout North America in regions south of Quebec. 

References:
Niering, W.A., Olmstead, N.C, & Thieret, J.W. (2001). National Audubon Society Field Guide to North American Wildflowers Eastern Region (Revised Edition).  New York: Random House Inc.

Newcomb, Lawrence (1977).  Newcomb’s Wildflower Guide.  New York: Little, Brown.
     

McKenny, M. & Peterson R.T. (1996). Peterson Field Guides: Wildflowers Northeastern/ North-central North America. New York: Houghton Mifflin.

USDA, NRCS (2004). Plants Database, Version 3.05 (http://plants.usda.gov).  National Plant Data Center, Baton Rouge, LA 70874 USA.



    

This page was created by: C. Friedl, Muhlenberg College
Last updated 12/15/05