Yes, they are the same thing
Unattractive, knit, prairie, unadorned are synonyms for the various meanings of "plain".
a plain has no grass and a prairie has flowers and grass
grassland, plain, prairie, savanna
A wide plain is also known as a prairie.
a prairie
A plain is a flat grassy area and a prairie is a type of plain. It is not as flat but with little bumps.
They both mean the same thing, a flat, basically treeless area.
The sundog prairie
The name for a grassy plain is a prairie or steppe. The dry grassland of Africa is known as a savanna.
A plain is flat ground with pretty much nothing special.. A Prairie is a plain with vegetation and wildlife.
dry plain
A plain that lies away from the coast is called a prairie.