An orchid is not a tree all are perennial herbs.
The tree does not benefit from the orchid but the orchid benefits from the tree as reaching lighter regions and becoming more visible for the pollinators.The tree is actually not affected by the orchid.The term for such relationship is commensalism.
bauhinia
Except a few orchids growing on land, most of them are epiphytes. So if an epiphytic orchid is detached from the tree it will be a disadvantage for that orchid to sustain.
pine tree pine tree
Orchid tree usually sheds its leaves in winter though some species do not.
Orchid
The Brazil nut tree can only be pollinated by an orchid bee, which feeds on a specific type of orchid Coryanthes vasquezii. So without the orchid growing nearby, the tree can not be pollinated and no Brazil nuts (which are actually the tree's seeds) can be produced.
the tree does not have benefit from the orchid
Vanilla flavour comes from an Orchid not a tree.
An orchid is an epiphyt as it lives off the tree on which it is anchored.
a tree is Mti or mtu in swahili. The term Mbia is also used, which means timber