1、 Plant type difference

The bulb of Gladiolus is oblate, with a diameter of 2.5-4.5cm. It is covered with a brown or yellowish brown film. The rhizome of Acorus calamus grows laterally, slightly flat, with a diameter of 0.5cm-1cm. It is covered with a layer of tan skin

2、 Blade difference

The length of Gladiolus is 4cm-2-40 cm. The leaves of Acorus calamus are sword shaped linear, wide at the base and gradually narrow. The length of its blade is between 90-150cm, and the width of its middle blade is 1-3cm

3、 The difference between flowers

The inflorescence of Gladiolus is a scorpion tail shaped univalent cyme, without pedicel, and the flowers have red, yellow, white and other colors. The inflorescence of Acorus calamus is narrow cone-shaped cylindrical, and the flowers are mostly yellow green