The leaves of Jerusalem artichoke are usually opposite and alternate in the upper part, oval or oval in the lower part, about 10-16cm long and 3-6cm wide, wedge-shaped or round in the base, sometimes microcardiform, and lanceolate in the upper part.
The basal leaves of chicory are oblong and oblong, which are much wider than the former. The petiole is about 15-34cm long and 2-4cm wide. It is pinnate and deeply cracked, with serrated edges. The lobes on the top side are larger and gradually smaller down. The lobes are triangular or sickle shaped. The cauline leaves are ovate oblanceolate to lanceolate.
Jerusalem artichoke flower heads, large flowers, multi-layer involucral bracts, lanceolate, long acuminate at the top, oblong stipules, 12-20 ligulate flowers, yellow color, long oval tongue, tubular corolla.
Chicory is also a capitulum, the involucre is cylindrical, two-layer, the outer layer is lanceolate, the inner layer is linear lanceolate, tongue shaped flowers, the color is blue.
