-Plants (Kingdom Plantae)

-Vascular Plants (Phylum Tracheophyta)

-Flowering Plants (Subphylum Angiospermae)

-Monocots (Class Liliopsida)​

-Grasses, Sedges, Cattails, and Allies (Order Poales)

-Grasses (Family Poaceae)

-Bristlegrasses, Bluestems, Paspalums, and Allies (Subfamily Panicoideae)

-Bristlegrasses, Rosette Grasses, Barnyard Grasses, and Allies (Tribe Paniceae)

-Subtribe Panicinae

-Panicgrasses (Genus Panicum)

-Smooth Witchgrass (Panicum dichotomiflorum)

Smooth Witchgrass, also commonly known as fall panicum, is a summer annual grass native to North America that can reach heights of up to six feet. It is characterized by its waxy, largely hairless stems that often bend in a zigzag pattern. This resilient grass thrives in moist to wet habitats, including disturbed areas, floodplains, and cultivated fields, and is known for producing a prolific number of small, oval, straw-coloured seeds.