Part of R. Good's (1974, The Geography of the Flowering Plants) Boreal Realm, which contains a limited, specialized flora, because much of the region comprises dry mountains and deserts. There are about 150 endemic genera (see endemism), virtually all small. Barley and some types of wheat probably originated in this region. See also floral province; floristic region.
Subjects: Plant Sciences and Forestry — Ecology and Conservation.