The Collaborative International Dictionary
Berseem \Ber*seem"\, n. [Ar. bersh[=i]m clover.] An Egyptian clover ( Trifolium alexandrinum) extensively cultivated as a forage plant and soil-renewing crop in the alkaline soils of the Nile valley, and now introduced into the southwestern United States. It is more succulent than other clovers or than alfalfa. Called also Egyptian clover.
Wikipedia
Trifolium alexandrinum (Egyptian clover, berseem clover) is an annual clover cultivated mostly in irrigated sub-tropical regions, and used as fodder, mainly for cattle and milk buffalo. It was an important winter crop in ancient Egypt, and was introduced into northern India in the early nineteenth century. It is also grown in the United States and Europe.
The plant reaches tall with erect or ascending stems.