Mundulea sericea or cork bush, is a small tree or shrub, typical of the Fabaceae family (SA Tree List No. 226). There are silvery hairs covering the compound leaves, corky bark upon the older stems, conspicuous mauve to purple flowers in the (spring and summer) blooming season; it generally has an attractive appearance, whether in bloom or not.

The tree is used in traditional medicine and cultural rituals involving magic. Certain butterflies breed on it (Van Wyk and Van Wyk, 1997).