Grassy Russian plain (6)

I believe the answer is:

steppe

(Other definitions for steppe that I've seen before include "Treeless plain of Russia" , "Dry grassy plain of eastern Europe and Asia" , "plain territory" , "Dry area of grassland in southeast Europe and Siberia" , "Large area of unforested grassland" .)

I've seen this clue in the Sydney Morning Herald.

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