Final answer:
Manitoba is the smallest and easternmost Canadian province that is known for its grassy prairies.
Step-by-step explanation:
The grassy 7-letter word that is often used to describe the Canadian provinces of Manitoba, Saskatchewan, and Alberta is Prairie.
Manitoba is the smallest and easternmost of the Canadian provinces, and it is known for its vast stretches of prairie land. The prairie region is characterized by temperate grasslands with excellent soil quality, making it suitable for large grain and beef operations.
The Canadian prairies are home to some of the best farmland in Canada and are an important agricultural region, providing food for cities in the area.