The rhizome of Acorus tatarinowii is about 2-5mm thick and has light fragrance. Its color is light brown. The rhizome is fleshy. There are many fibrous roots on it. The length of internode is usually 3-5mm.
The rhizome of Acorus calamus is transverse, with a thickness of about 5-10 mm. It also has fragrance, but it is yellowish brown. Its fleshy roots are about 5-6cm, and its fibrous roots are hairy.
The leaves of Acorus tatarinowii are very thin and linear, with a length of about 20-30cm, sometimes up to 50cm. Its leaves are dark green and have no ribs.
The leaves of Acorus calamus are sword like, longer, about 90-150cm long. Its leaves are green, very bright, with very obvious middle ribs.
Acorus tatarinowii likes to grow in the semi - overcast environment. I'm afraid of being directly exposed to the sun. I like the humid environment
Water calamus also like to grow in the wet place, it is like warm, the amount of environmental warmth should be about 20 - 25 ℃.
