The folding feature is common to relatives of Mimosa. The flowers look like pink and white puffballs and the fruits are long and flat. It is a staple of the American landscape, easily recognized in Spring by its purple flowers. Don't let the common name throw you. The flowers are never red, however some cultivated varieties are white.
Redbud leaves are large and heart-shaped.
The tree is small and forms several trunks. There are many Redbuds on campus - behind the Union and scattered all around. One notable specimen lives on the East side of Karls Hall. It has one trunk with white blooms and one with purple blooms. This is probably the result of a reversion mutation from a cultivated variety, back to the natural purple color.