Answer:
Yes, the magnolia flower grows on the magnolia tree [Magnolia spp]. The name of the tree honors French botanist Pierre Magnol [June 8, 1638-May 21, 1715]. The name was chosen by French botanist and Minims religious order member Charles Plumier [April 20, 1646-November 20, 1704], who saw his first magnolia trees on the Caribbean island of Martinique.