The plant height of Xanthium sibiricum is about 20 to 90 cm, the root is spindle shaped, unbranched or branched, the stem is erect, unbranched or a few branched, the lower part is cylindrical, the diameter is 4 to 10 mm, the upper part has longitudinal groove, with coarse gray hairs.
The leaves of Xanthium sibiricum are triangular, ovate or heart-shaped, about 4 to 9 cm long, about 5 to 10 cm wide, close to the whole, with 3 to 5 indistinct lobes, sharp or blunt at the top, slightly heart-shaped or truncated at the base, irregular rough serrations at the edges, and 3 to 11 cm long petioles.
The flower heads are globose, about 4 to 6 mm in diameter, the Corolla is bell shaped, the anthers are oblong linear, and the flowers are green, yellowish green or reddish brown.
