Agronomy Degree Practice Exam

Alfalfa is a member of which plant family?

1. Brassicaceae

2. Poaceae

3. Fabaceae

4. Malvaceae

The correct answer is: Fabaceae

Alfalfa is indeed a member of the Fabaceae family, which is often referred to as the legume, pea, or bean family. This family is characterized by the production of seeds in pods, which is a common trait among its members. Alfalfa, specifically known scientifically as Medicago sativa, is valued in agriculture primarily for its high protein content and as a forage crop. One of the significant benefits of alfalfa and its related species is their ability to fix atmospheric nitrogen, enriching the soil and benefiting subsequent crops in a rotation. The other plant families listed, such as Brassicaceae, which includes mustards and cabbage, and Poaceae, which comprises grasses, do not relate to alfalfa. The Malvaceae family, which includes cotton and okra, is also unrelated. By understanding that alfalfa belongs to the Fabaceae family, you can appreciate the ecological role and agricultural significance of legumes in crop rotations and pasture management.