Your description is very clear and easy to understand! Here is a slightly corrected version to improve grammar:
"Dry grasslands are wide, open areas with lots of grass, few trees, and not much rain. They can be very windy and may have sandstorms. The dry grasslands of Eurasia are called the Great Steppe. In America, people call them prairies."
Explanation of the changes:
- Added a comma after "few trees" for correct punctuation in a list.
- Changed "can feel very windy" to "can be very windy" to sound more natural.
- Changed "have sandstorms" to "may have sandstorms" to indicate that sandstorms don't always happen.