Alfalfa
Medicago sativa
Legume=Fabaceae (Pea Family)

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Photo Details
1. light flower, 2. dark flower, 3. leaf - September 19, 2005 - Butterfield Canyon, Salt Lake County, Utah - ©Nicky Davis

Characteristics
3 to 4 plus feet tall, tiny clustered lavender to purple flowers. Non-native annual to perennial. Food for caterpillar and adult Melissa Blue and Marine Blue Butterflies. 

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