Citrus consists of root, stem, leaf, flower and fruit. Small arbor. It is a single compound leaf. The wing leaves are usually narrow or have only traces. The leaves are lanceolate, elliptic or wide oval, with large variation in size. There are usually notches at the top. The midvein forms forked branches from the base to the notch. At least the upper part of the leaf margin usually has blunt or rounded teeth, rarely entire. Flowers solitary or 2-3 clustered; Calyx irregularly 5-3-lobed; Petal...