Tree

Tree[{subtree1, subtree2, ...}] represents a tree with a list of child subtrees subtreei.

• Tree[<|key1 -> subtree1, key2 -> subtree2, ...|>] specifies children as an association with keys.
• Tree[data, subtrees] represents a tree containing data in its root, with children given by subtrees.

Examples

Tree[a, {Tree[b, {}], Tree[c, {}]}]

Tree["root", {Tree["child1", {}], Tree["child2", {}]}]

ExpressionTree[a + b * c]

*See the official Wolfram Language Reference for more details.