Just bought this pityful tree at 50% discount, problem is I have no idea what it is, no tags or anything. It seems to be grafted because the leaves on top (photo 3) are different from the leaves on the twigs that start at the bottom. I crushed one of the bottom leaves and it smells a lot like my 4 season lemon's leaves. Also the top twig has no thorns while the bottom twigs are full of thorns. It would be odd to graft on a 4 seasons lemon, no? Can anyone help me identify this tree? Sorry for the picture quality (or rather absence thereof).

i have rotated the pictures

In my opinion , this a Limequat , because most of the top leaves are resembling those on my limequat (Limonella) , about the lower part I can not tell you what it is , allthough for a more compact tree I heard that many home growers are grafting buds on meyer lemon.

Thanks. How did you rotate the pictures? I tried rotating them on imageshack but they always turn back horizontal. I uploaded them vertical though.

Maybe I should crush one of the top leaves to smell it. I'm kind of reluctant because this poor thing has barely any leaves on (what I believe to be) the graft. On the other hand those leaves aren't in top shape either...

If this really is a grafted tree, should I remove the bottom twigs so that the graft has a better chance?

You can do it to a small leaf.

Yes if it is grafted , then what it is under the graft line should be removed as soon as possible , to allow the nutrients to go to the upper part of the tree.

Can we see a picture of the grafting point?

I went ahead and crushed one of the graft leaves. It didn't have the lemon leaf aroma at all, rather a very faint herbaceous smell. I'm beginning to think this may be a calamondin or kumquat. Do their leaves have a strong aroma?

Here are some pictures of the grafting point.

Yes indeed is a grafting point , what you have to do is to remove 1 branch per week , not all togheter at once, and gradually let the tree to recover his upper part.

My guess is that it is a limonella limequat.

Oops, too late. I cut all the bottom twigs at once and cut them up for budding. Could it be the rootstock is volkamer lemon? When I look at pictures on the net the leaves are very similar. How do volkamer lemon leaves smell?

As for the graft, the leaves indeed look a lot like the limequats I've seen on pictures. I think it's either that or a calamondin.

My calamondin have a more roundish form, that is why i said that must be something from -quat- family