Oxypetalum suboppositum, Oxypetalum subcapitatum, Oxypetalum strictum, Oxypetalum stipatum, Oxypetalum schenckii, Oxypetalum rusticum, Oxypetalum rojasianum, Oxypetalum warmingii, Oxypetalum wightianum, Oxypetalum reitzii, Oxypetalum chodatianum, Oxypetalum ceratostemma, Oxypetalum capitatum, Oxypetalum brachystephanum, Oxypetalum insigne, Oxypetalum incanum, Oxypetalum humile, Oxypetalum cordifolium, Oxypetalum hilarianum, Oxypetalum banksii, Oxypetalum helios, Oxypetalum crispum, Oxypetalum costae, Oxypetalum barberoanum, Oxypetalum appendiculatum, Oxypetalum balansae, Oxypetalum aurantiacum, Oxypetalum arnottianum, Oxypetalum alpinum, Oxypetalum acerosum, Oxypetalum aequaliflorum, Oxypetalum arachnoideum, Oxypetalum pilosum, Oxypetalum patulum, Oxypetalum reflexum, Oxypetalum polyanthum, Oxypetalum pardense, Oxypetalum martii, Oxypetalum marginatum, Oxypetalum marambaiense, Oxypetalum macrolepis, Oxypetalum lutescens, Oxypetalum leonii, Oxypetalum kleinii, Oxypetalum jacobinae, Oxypetalum lineare, Oxypetalum pannosum, Oxypetalum pachygynum, Oxypetalum pachyglossum, Oxypetalum ophiuroideum, Oxypetalum minarum, Oxypetalum molle, Oxypetalum morilloanum, Oxypetalum muticum, Oxypetalum montanum, Oxypetalum habrogynum, Oxypetalum erostre, Oxypetalum erianthum, Oxypetalum glabrescens, Oxypetalum filamentosum, Oxypetalum foliosum, Oxypetalum erectum, Oxypetalum oblanceolatum, Oxypetalum gyrophyllum, Oxypetalum boudetii, Oxypetalum glaziovii, Oxypetalum harleyi, Oxypetalum laciniatum, Oxypetalum heptalobum, Oxypetalum pubescens, Oxypetalum sylvestre, Oxypetalum tucumanense, Oxypetalum karstenianum, Oxypetalum longipedunculatum, Oxypetalum fiebrigii, Oxypetalum pentasetum, Oxypetalum albicans, Oxypetalum argentinum, Oxypetalum coalitum, Oxypetalum confusum, Oxypetalum dombeyanum, Oxypetalum dusenii, Oxypetalum ekblomii, Oxypetalum glaziovianum, Oxypetalum glomeratum, Oxypetalum lanatum, Oxypetalum nanum, Oxypetalum obtusifolium, Oxypetalum schottii, Oxypetalum sublanatum, Oxypetalum coccineum, Oxypetalum coeruleum, Oxypetalum deltoideum, Oxypetalum microphyllum, Oxypetalum parviflorum, Oxypetalum solanoides, Oxypetalum subhirtellum, Oxypetalum tomentosum, Oxypetalum brachystemma, Oxypetalum tubatum, Oxypetalum weberbaueri, Oxypetalum malmei, Oxypetalum guaraniticum, Oxypetalum hoehnei, Oxypetalum mosenii, Oxypetalum multiflorum, Oxypetalum nitidum, Oxypetalum ostenii, Oxypetalum rariflorum, Oxypetalum regnellii, Oxypetalum arenicola, Oxypetalum attenuatum, Oxypetalum schulzii, Oxypetalum charrua, Oxypetalum gracile, Oxypetalum joergensenii, Oxypetalum lynchianum, Oxypetalum kuhlmannianum, Oxypetalum commersonianum, Oxypetalum fontellae, Oxypetalum retusum, Oxypetalum melinioides, Oxypetalum dactylostelma, Oxypetalum fuscum, Oxypetalum flavopurpureum, Oxypetalum pearsonii, Oxypetalum corymbosum, Oxypetalum teyucuarense, Oxypetalum nigricans, Oxypetalum urceolatum, Oxypetalum radinsii,