Southern Magnolia Flower

Magnolia grandiflora, communément appelée magnolia méridionale ou bull bay.

Magnolia grandiflora, commonly known as the southern magnolia or bull bay, is a tree of the family Magnoliaceae native to the southeastern United States, from southeastern North Carolina to central Florida, and west to East Texas. Reaching 27.5 m (90 ft) in height, it is a large, striking evergreen tree, with large dark green leaves up to 20 cm (7 3⁄4 in) long and 12 cm (4 3⁄4 in) wide, and large, white, fragrant flowers up to 30 cm (12 in) in diameter.

Although endemic to the lowland subtropical forests on the Gulf and south Atlantic coastal plain, magnolia grandiflora is widely cultivated in warmer areas around the world. The timber is hard and heavy, and has been used commercially to make furniture, pallets, and veneer.

Magnolia grandiflora is a medium to large evergreen tree which may grow 120 ft (37 m) tall.[1] It typically has a single stem (or trunk) and a pyramidal shape.[2] The leaves are simple and broadly ovate, 12–20 cm (4 3⁄4–7 3⁄4 in) long and 6–12 cm (2 1⁄4–4 3⁄4 in) broad,[2] 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 (11 3⁄4 in) across and fragrant, with six to 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 polyfollicle, 7.5–10 cm (3–3 7⁄8 in) long, and 3–5 cm (1 1⁄4–2 in) wide.

Exceptionally large trees have been reported in the far southern United States. The national champion is a specimen in Smith County, Mississippi, that stands an incredible 37 m (121 ft). Another record includes a 35-m-high specimen from the Chickasawhay District, De Soto National Forest, in Mississippi, which measured 17.75 ft in circumference at breast height, from 1961, and a 30-m-tall tree from Baton Rouge, which reached 18 ft in circumference at breast height.

Taxonomy

Magnolia grandiflora was one of the many species first described by Linnaeus in the 10th edition of his Systema Naturae in 1759, basing his description on the earlier notes of Miller. He did not select a type specimen. Its specific epithet is derived from the Latin words grandis"big", and flor- "flower".

M. grandiflora is most commonly known as southern magnolia, a name derived from its range in the Southern United States. Many broadleaved evergreen trees are known as bays for their resemblance to the leaves of the red bay (Persea borbonia), with this species known as the bull bay for its huge size or alternatively because cattle have been reported eating its leaves. Laurel magnolia, evergreen magnolia, large-flower magnolia or big laurel are alternative names. The timber is known simply as magnolia.

Distribution and habitat

Southern magnolias are native to the Southeastern United States, from North Carolina south to central Florida, and then west to East Texas. It is found on the edges of bodies of water and swamps, in association with sweetgum (Liquidambar styraciflua), water oak (Quercus nigra), and black tupelo (Nyssa sylvatica). In more sheltered habitats, it grows as a large tree, but can be a low shrub when found on coastal dunes.[7] It is killed by summer fires, and is missing from habitats that undergo regular burning.

In Florida, it is found in a number of different ecological areas that are typically shady and have well-draining soils; it is also found in hummocks, along ravines, on slopes, and in wooded floodplains. Despite preferring sites with increased moisture, it does not tolerate inundation. It grows on sand-hills in maritime forests, where it is found growing with live oaks and saw palmetto. In the eastern United States, it has become an escapee, and has become naturalized in the tidewater area of Virginia, Maryland, and the Washington, D.C. metropolitan area and locally in other areas outside of its historically natural range.