eppstein-trees – Macros for producing trees
Tree macros that draw horizontally, proceeding from a root at the left of the page.
Maybe you are interested in the following packages as well.
- treetex-ltx209: Draw horizontally- or vertically-oriented trees
- qobitree: LaTeX macros for typesetting trees
- treedef: Macros to typeset trees in Plain TeX
- linguex: Format linguists' examples