Everybody loves polar dendrograms. They give you more space in the margin to fill with annotations and flirts with the awesome Circos plots. Here's my go at it in R.
For more information please visit the project website.
This package is essentially just provide a fancy way to visualizate hclust
objects. If you want something bigger and more phylogenetically sophisticated you probably want the ape package.
library("devtools")
install_github("backlin/polarClust")