The leaf color of Acorus tatarinowii is dark green, with a length of about 20 to 50 cm. The leaf veins are parallel and slightly raised.
The leaf color of Acorus calamus is a little light, and its length is very long, about 50 to 120 cm.
The root of Acorus tatarinowii is oblate, with many bending points, 3 to 20 cm long and 0.3 to 1 cm in diameter. Its surface is dark brown or grayish brown.
Compared with the former, the shape of Acorus calamus is larger and less branched, with a diameter of about 1 to 1.5cm. The surface color is slightly lighter, and the lightest part can be white like.
Acorus tatarinowii flowers are triangular in shape and yellow green or yellow white in color. The flowering period is about February.
The flower shape of Acorus calamus is more flat, and the flowering period is from June to September, mainly in spring and autumn.
