Differences between Patchouli and Ageratum

Patchouli is a perennial herb with a relatively upright stem that is 50 to 150 cm in height. The upper part has extremely short fine hairs, while the lower part is hairless.

2. The difference of leaves

The leaves of Ageratum are opposite, and some leaves may be alternate in the upper part. The leaves are oval or oblong in shape.

The leaves of Patchouli are about 4.5 to 11 cm long and 3 to 6.5 cm wide. The edges of the leaves have relatively coarse serrated cracks and almost no small hairs. The petioles are about 1.5 to 3.5 cm long.

3. The difference of flowers

The flowers of Ageratum are usually arranged closely, but rarely in a loose corymb style, with pedicels about 0.5 to 1.5 cm long.

The inflorescence of Patchouli is a cylindrical spike inflorescence, about 2.5 to 12 cm in length, and the pedicel is extremely short, generally about 3 mm.