Acorns.
Acorns are the nuts that grow on oak trees, not fruit. Oak trees produce acorns as a way of reproducing and spreading their seeds.
There is no fruit that grows on an oak tree. Oak trees will produce acorns, a hard and heavily shelled nut.
Mistletoe
Yes. Oak trees can be grafted the same way fruit trees are grafted.
No really, it grows on trees.
Acorns.
lemons
Acorns grow on oak trees.
an oak tree is a tree that grows in parks and back gardens. they are not rare as they can grow nearly everywhere. oak trees help to make the wood "oak". this is a very strong oak and is used for floors and furniture a lot.
Oak trees. Each acorn contains one seed and takes around 6-18 months to mature, depending on the species of Oak.
Oak trees start from acorns when the acorn falls to the ground and germinates, sending out roots and a shoot that eventually grows into a young oak tree.
Mistletoe, ivy.