The leaves of four seasons orange are dark green, with wavy blunt teeth on the edge, and smaller.
The color of Kumquat leaves is dark green. The leaves are larger than the former. The length is 5 to 11cm, the width is about 2 to 4cm, and the petioles are longer, up to 1.2cm.
The appearance color of the four season orange fruit is orange, yellow, the fruit is relatively small, the shape is round or oblate, often the long slant is not right, there are often small marks on it, taste very sour.
The appearance color of kumquat fruit is orange yellow to orange red, which looks more red. The fruit is a little bigger than the former. The shape is oval or oval, which tastes sweet. The ripening period of the fruit is from October to December.