revision preference src: Carex oligosperma, common name fewseed sedge, few-seeded sedge, and few-fruited sedge, is a perennial plant in the Carex genus. A distinct variety, Carex oligosperma var. <SEP> tgt: Carex oligosperma, common name fewseed sedge, few-seeded sedge, and few-fruited sedge, is a perennial plant in the Carex genus. A distinct Carex, Carex.