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Rudbeckia laciniata Common Name of Species: Green-Headed
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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 ½ -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.
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This page was created by: C. Friedl,
Muhlenberg College
Last updated 12/15/05