Synonyms: Acetosella cruentata; Acetosella obtusa (homotypic); Oxalis atrata; Oxalis ciliariflora; Oxalis cruentata; Oxalis cuneata (heterotypic); Oxalis cuneiformis; Oxalis cuprea; Oxalis fimbriata; Oxalis framesii; Oxalis fugax (homotypic); Oxalis lacunosa; Oxalis membranacea; Oxalis natans (heterotypic); Oxalis obtusa var. glabrata; Oxalis obtusa var. hantamensis; Oxalis obtusa var. subvillosa; Oxalis pearsonii; Oxalis plagiantha; Oxalis pulchella (heterotypic); Oxalis rondeboschensis; Oxalis schultzei; Oxalis stylosa; Oxalis thermarum