1、 Blade difference

The leaves of Jerusalem artichoke are usually opposite and alternate in the upper part. The lower leaves are oval or oval, about 10-16 cm long and 3-6 cm wide. The base is wide wedge-shaped or round, sometimes micro heart-shaped. The upper leaves are long oval and then broad lanceolate

The basal leaves of chicory are inverted lanceolate long oval, which is much wider than the former. The petiole is about 15-34 cm long and 2-4 cm wide. It is pinnately deeply divided, with serrated edges. The lobes on the top side are larger and gradually smaller downward, and the lobes are triangular or sickle shaped. The cauline leaves are ovate oblanceolate to lanceolate

2、 The difference between flowers

Jerusalem artichoke has a head like inflorescence with large flowers, multi-layer involucral bracts, lanceolate, long acuminate at the top, oblong supporting plate, 12-20 tongue like flowers, yellow color, long oval tongue and tubular corolla

Chicory is also a head like inflorescence. The involucral bracts are cylindrical and have two layers. The outer layer is lanceolate, the inner layer is linear lanceolate, and the flowers are tongue shaped. The color is blue