Myriophyllum mattogrossense is a finely textured, fast-growing aquatic stem plant native to South America, particularly the Mato Grosso region of Brazil. It features feathery, bright green to light yellow-green leaves arranged in whorls around a slender stem, giving it a soft, bushy appearance ideal for adding volume and movement to planted aquariums. Its growth rate is fast, making it an excellent choice for quickly filling out background spaces or establishing new layouts.