What type of fruit is your tree producing, green/purple fruit with crease or apple-like fruit?
Green/purple fruit with crease
Do you have a shrubby tree with 1 inch diameter, green to purple fruit; fruit has a crease down one side; twigs are stubby, spur-like and sometimes spiny tipped; leaf has long pointed tip; leaf is 3 to 4 inches long
OR
Apple-like fruit
do you have a shrubby tree with apple-like fruit; spur-like stubs may exist on branches; leaf is slightly hairy below?