Magnolia grandiflora seeds mature in October, commonly known as the southern magnolia or bull bay, is a tree of the family Magnoliaceae native to the southeastern United States, from Virginia south to central Florida, and west to eastern Texas and Oklahoma. 

Magnolia grandiflora is a medium to large evergreen tree reaching 27.5 m (90 ft) in height, typically has a single stem (or trunk) and a pyramidal shape. The leaves are simple and broadly ovate, 12–20 cm (5–8 in) long and 6–12 cm (2–5 in) broad, with smooth margins. They are dark green, stiff and leathery, and often scurfy underneath with yellow-brown pubescence. The large, showy, lemon citronella-scented flowers are white, up to 30 cm (12 in) across and fragrant, with 6–12 petals with a waxy texture, emerging from the tips of twigs on mature trees in late spring. Flowering is followed by the rose-coloured fruit, ovoid and 7.5–10 cm (3–4 in) long and 3–5 cm (1.5–2 in) wide.