Acer palmatum
Trees on the South Lawn include the earliest remaining trees on the grounds to have been planted by a United States president – President Andrew Jackson's southern magnolias ("Magnolia grandiflora") on either side of the South portico, Japanese threadleaf maple ("Acer palmatum dissectum"), American elm ("Ulmus americana"), white oak ("Quercus alba"), white saucer magnolia ("Magnolia × soulangeana"), Atlas cedar ("Cedrus atlantica"), sugar maple ("Acer saccharum"), and northern red oak ("Quercus rubra").