Hamamelis vernalis (Ozark witchhazel) is a species of witch-hazel native to the Ozark Plateau in central North America, in Missouri, Oklahoma, and Arkansas. It is a deciduous large shrub growing to 4 m tall, spreading by stoloniferous root sprouts. The leaves are oval, 7–13 cm long and 6.7–13 cm broad, cuneate to slightly oblique at the base, acute or rounded at the apex, with a wavy-toothed or shallowly lobed margin, and a short, stout petiole 7–15 mm long; they are dark green above, and glaucous beneath, and often persist into the early winter. The flowers are deep to bright red, rarely yellow, with four ribbon-shaped petals 7–10 mm long and four short stamens, and grow in clusters; flowering begins in mid winter and continues until early spring (the Latin word vernalis means spring-flow