Centella L.
Infl. a simple umbel subtended by 2 us. conspicuous bracts, Calyxteeth obsolete; petals whitish, imbricate in bud. Fr. laterally compressed, orbicular in outline, with narrow commissure. Mericarps flattened; primary ribs 3-5; secondary 3-5, prominent. Creeping perennial herbs with simple lvs; lamina ovate to ovate-cordate to reniform. About 25 spp., mainly of S. Africa and Asia, the N.Z. sp. endemic.