Antarctica has very little in terms of vegetation. A combination of poor soil, lack of lighting during the long winters, extreme temperatures, and ice inhibit the growth of plants. However, about 100 species of moss and 25 species of liverwort do grow, along with three types of flowering plant. Growth is limited to the few weeks in summer where temperatures rise above freezing. Over 1,000 species of fungi also grow in Antarctica, along with several hundred species of multicolored algae that are abundant along the coast and in some rivers.