To cite package ‘heattree’ in publications use:

  Foster Z, Grunwald N (2026). _heattree: A Self-Contained Widget for
  Interactive Phylogenetic Tree Visualization_. R package version
  0.3.1, <https://CRAN.R-project.org/package=heattree>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {heattree: A Self-Contained Widget for Interactive Phylogenetic Tree
Visualization},
    author = {Zachary Foster and Niklaus Grunwald},
    year = {2026},
    note = {R package version 0.3.1},
    url = {https://CRAN.R-project.org/package=heattree},
  }