Broadleaf weeds are also called dicotyledonous weeds, and their seeds have two leaflets. Plants have wide leaves, petioles and reticulate veins (veins are like a net); Generally, taproots are developed, mostly straight roots. The cardinal number of visible flowers after flowering is usually 5 or 4, and the morphology of calyx and corolla is also different. For example, wild amaranth (including Amaranth retroflexus, Ipomoea crassipes, alias Ying Ying cuisine, etc. ), Portulaca oleracea (Sargassum, Cabbage), Chenopodium album (Grey Cabbage), Solanum nigrum (Wild Grape, Black Tree), Xanthium sibiricum (Cangzi, Wild Silkworm Eggs), Cirsium japonicum (Sea Cucumber, Sea Cucumber). Convolvulus (Petunia hybrida), Rehmannia glutinosa (mother vegetable), Plantago asiatica (turnip) and Taraxacum mongolicum (day lily) are perennial broad-leaved weeds.

In addition, there are sedge (alias tripterygium wilfordii), sedge heterophyllum (Elymus globosa), Carex pilosa and so on. It belongs to annual monocotyledonous weeds in Cyperaceae, while Cyperus rotundus belongs to perennial monocotyledonous weeds in Cyperaceae. Commelina communis (alias bamboo leaves, bamboo leaves, triangle grass, duck grass, etc. ) is an annual monocotyledonous weed, and people used to classify it as a broad-leaved weed. (Baidu reference)