MEZOFITHO (az mezo… va yun. phyton — rastani), rastanikhoero guuyand, ki dar surati dar khok mavjud budani obi kofi mesabzand. Onho dar bayni kserofitho (nig. Kserofisho) va gigrofitho mavqei mobayniro ishgol mekunand. Mezofitho beshtar dar mintaqahoi mutadil, beshazori tropiki va subtropiki meruyand. Ba Mezofithoi arzi mutadil darakhthoi khazonrez, butta, qismi ziyodi rastanihoi margzor (sebarga, arzanak va g.) va rastanihoi beshagi (livondar va g.), aksari rastanihoi khojagii qishloq az alafhoi begona mansuband.