Panicum (panicgrass)[2] is a large genus of about 450 species of Poaceae grasses native throughout the tropical regions of the world, with a few species extending into the northern temperate zone.

They are often large, annual or perennial grasses, growing to 1–3 m (3–10 ft) tall.

[3][4] The flowers are produced in a well-developed panicle often up to 60 cm (24 in) in length with numerous seeds, which are 1–6 mm (0.04–0.24 in) long and 1–2 mm (0.04–0.08 in) broad.

[5][6][7][8][9][10] Australia has 29 native and 9 introduced species of Panicum.

[11][12][13] Well-known species include P. miliaceum (proso millet) and P. virgatum (switchgrass).