Complex sentence: In a general sense, a tepal is any member or segment of the perianth of a flower, such as a petal or sepal, usually used when all are of similar shape and color (that is, undifferentiated).
Split into simpler sentences: In a general sense, a tepal is any member or segment of the perianth of a flower, such as a petal or sepal. The term "tepal" is usually used when all are of similar shape and color (that is, undifferentiated).