Oxalis pes-caprae, the Bermuda buttercup, African wood-sorrel, Bermuda sorrel, buttercup oxalis, Cape sorrel, English weed, goat's-foot, sourgrass, soursob or soursop, a flowering plant species
The largest is 'biriba do Alto Solimoes', developed in Brazil, which can weigh up to 4 kg, making it probably the third largest Annona after the junglesop and the soursop.