I'm not even going to attempt to identify your magnolia without a photograph, sorry, though it's possible to have a stab at it with more information. Is it evergreen? What do you mean by "long leaf"? How large is the plant? What colour and shape are the flowers? There may well be magnolia pictures under M at the bottom of the page - have a look and see.

or google images of magnolia and see if you can spot it that way. Magnolia is the latin name for a large group of shrubs and trees.

Lozi, are you thinking of the Big-Leaf Magnolia (Magnolia macrophylla)?

From a PM Lozi sent me, sounds like Magnolia grandiflora