Cold semi-arid climate (Köppen BSk) is a steppe climate with cold winters and low, unreliable rainfall — roughly 250–500mm/year, less than the region’s temperatures would otherwise support. It covers the North American Great Plains, the Eurasian steppe (Kazakhstan, Mongolia, parts of Iran, Anatolia, and the Caucasus), Patagonia, parts of the South African Karoo, and interior Spain’s Ebro valley (around Zaragoza) — distinct from the mild-winter BSh (hot semi-arid) of coastal southeast Spain (Almería, Murcia). Plants suited to it tend to be drought-tolerant and cold-hardy: prairie and steppe natives, nitrogen-fixing forage legumes, drought-tolerant grasses and forbs, and continental-climate orchard crops.