A favorite member of the MINT family, peppermint is an HERB used for medicines, perfumes, soaps, and for flavoring foods and candy. There are two common varieties of peppermint, black and white. The black has dark green leaves, square stems, and purple blossoms tinged with red at the tips of long spikes. The white is a similar plant but shorter and with lighter green leaves. The oil taken from the leaves of the white peppermint is the best quality.