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Rudbeckia triloba
Common Name of Species: Thin
Leaved Coneflower
Family: Asteraceae
Description: Thin-leaved coneflowers can be identified by their rich, golden yellow florets, which are rather short and stubby.
Leaves: Lower leaves are divided into 3-lobes, have a broad leaf stalk and are toothed. Upper leaves are ovate and elongated with coarsely toothed margins.
Flowers: 8-10 golden yellow rays per flower. Rays are rather stubby for this genus. Flower heads are 1-2 inches in length.
Stem: Branching and hairy.
Branching Pattern: Leaves grow in alternate pattern.
Height: 2-5 feet high.
Branching Pattern of Leaves: Leaves grow alternate to one another.
Conditions/Habitat: Open woods and thickets. Wet or dry soil.
Range: Can be found East from Minnesota to New York and New Jersey, and Southward to Texas and Florida.
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.