This plant may be Rumex. Rumex is a perennial herb of Polygonaceae, with a height of 100 cm, deep ditch and usually unbranched. The basal leaves and lower leaves of the stem are arrow-shaped, with sharp or obtuse tips, and the basal lobes are sharp, entire or microwave-shaped; The upper leaves of stem are smaller, petiole is short or sessile; Stipules sheaths are membranous and easily broken. Inflorescence narrowly conical, terminal, sparsely branched; Flowers are unisexual and dioecious; There are joints in the middle of the pedicel; The inner tepals of male flowers are oval, about 3 mm long, and the outer tepals are smaller, nearly round, achene oval, dark brown and shiny. It blooms in May-July and bears fruit in June-August.