red clover

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A Eurasian plant (Trifolium pratense) having trifoliolate leaves and globular heads of fragrant rose-purple flowers, widely naturalized in North America and frequently planted as a forage or cover crop.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun a clover, Trifolium pratense, with red flowers, found in Europe, Asia and North America.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun erect to decumbent short-lived perennial having red-purple to pink flowers; the most commonly grown forage clover