A total of 450 species (wild and cultivated) of flowering plants belonging to 257 genera in 62 families are reported as a preliminary estimate for the flora of Qassim. The systematic list consists of two species of Gymnosperms, 362 species of Dicotyledons and 86 of Monocotyledons. It is drawn from species collected as a result of several field trips to various localities, literature and specimens in local herbaria. New records (*) constitute 50 species.
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Turki A. Al‐Turki (1997) studied this question.
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