Sources USDA, Nesom
Oxalis acetosella – common wood sorrel, stabwort
Oxalis adenophylla – Chilean oxalis, silver shamrock
Oxalis albicans – hairy woodsorrel, white oxalis, radishroot woodsorrel, radishroot yellow-sorrel, California yellow-sorrel
Oxalis albicans var.
pilosa formerly O. pilosa 
Oxalis alpina – alpine sorrel
Oxalis ambigua
Oxalis amblyosepala
Oxalis amplifolia now considered O. drummondii 
Oxalis arborea Hort.

Oxalis arenia
Oxalis articulata Savign. –
pink-sorrel
Oxalis articulata ssp.
rubra  (St.
Hil.)
Lourteig
Oxalis ausensis
Oxalis barrelieri – lavender sorrel
Oxalis bowiei – Bowie's wood-sorrel, Cape shamrock
Oxalis brasiliensis
Oxalis bulbocastanum
Oxalis caerulea – blue woodsorrel
Oxalis caprina
Oxalis carnosa
Oxalis callosa
Oxalis chnoodes
Oxalis commutata
Oxalis compressa
Oxalis comptonii
Oxalis convexula
Oxalis corymbosa
Oxalis corniculata – creeping wood sorrel, procumbent yellow-sorrel, sleeping beauty, chichoda bhaji (India)
Oxalis crassipes – white wood sorrel
Oxalis debilis Kunth
Oxalis debilis var.
corymbosa (DC.)
Lourteig – large-flowered pink-sorrel (Synonym : O. corymbosa)
Oxalis decaphylla – ten-leaved pink-sorrel, tenleaf wood sorrel
Oxalis dehradunensis
Oxalis depressa
Oxalis dichondrifolia – peonyleaf wood sorrel
Oxalis dillenii Jacquin – southern yellow woodsorrel, Dillen's woodsorrel, Sussex yellow-sorrel
Oxalis drummondii – Drummond's woodsorrel, chevron oxalis
Oxalis ecuadorensis
Oxalis eggersii – Egger's wood-sorrel
Oxalis engleriana
Oxalis enneaphylla – scurvy-grass sorrel
Oxalis exilis – least yellow-sorrel
Oxalis fabaefolia
Oxalis flava
Oxalis florida
Oxalis fourcadei Salter
Oxalis frutescens – shrubby wood-sorrel
Oxalis frutescens ssp.
angustifolia
Oxalis giftbergensis
Oxalis gigantea
Oxalis glabra – finger-leaf
Oxalis goniorhiza
Oxalis grandis – great yellow-sorrel, large yellow woodsorrel
Oxalis grayi is now considered O. decaphylla 
Oxalis griffithii Edgew. &
Hook.f.

Oxalis hedysaroides – fire fern
Oxalis hirta – hairy sorrel
Oxalis hygrophila
Oxalis illinoensis – Illinois wood-sorrel
Oxalis inaequalis
Oxalis incarnata L. – pale pink-sorrel
Oxalis intermedia – West Indian wood-sorrel
Oxalis laciniata
Oxalis lasiandra – Mexican shamrock
Oxalis latifolia Kunth – garden pink-sorrel
Oxalis livida
Oxalis luederitzii
Oxalis luteola Jacq.

Oxalis macrocarpa
Oxalis magellanica G.Forst.

Oxalis magnifica Kunth – snowdrop wood-sorrel
Oxalis mallobolva
Oxalis massoniana
Oxalis megalorrhiza – fleshy yellow-sorrel
Oxalis meisneri
Oxalis melanosticta
Oxalis metcalfei now considered O. alpina 
Oxalis micrantha – dwarf woodsorrel
Oxalis montana – mountain woodsorrel, white woodsorrel
Oxalis monticola now considered O. alpina 
Oxalis namaquana
Oxalis natans
Oxalis nelsonii – Nelson's sorrel
Oxalis nigrescens A.St.-Hil.

Oxalis norlindiana
Oxalis obliquifolia
Oxalis obtusa
Oxalis oculifera
Oxalis oligophylla
Oxalis oregana – redwood sorrel, Oregon sorrel
Oxalis oreophila
Oxalis ortgiesii Regel – fishtail oxalis
Oxalis palmifrons
Oxalis pardalis
Oxalis pennelliana
Oxalis perennans
Oxalis peridicaria (= O. lobata)
Oxalis pes-caprae – Bermuda-buttercup, African wood-sorrel, Bermuda sorrel, buttercup oxalis, Cape sorrel, English weed, soursob, "goat's-foot", "sourgrass", soursop (not to be confused with the fruit of that name)
Oxalis pilosa see O. albicans 
Oxalis polyphylla
Oxalis polyphylla heptaphylla
Oxalis priceae – tufted yellow-sorrel
Oxalis puberula
Oxalis purpurea L. – purple wood-sorrel
Oxalis radicosa – dwarf woodsorrel
Oxalis regnellii – false shamrock, purple shamrock, love plant
Oxalis repens
Oxalis rosea Feuillée ex Jacq. –
annual pink-sorrel
Oxalis rubens
Oxalis rubra A.St.-Hil. –
red wood-sorrel
Oxalis rufescens
Oxalis rugeliana – coamo
Oxalis schaeferi
Oxalis spiralis – spiral sorrel, volcanic sorrel, velvet oxalis
Oxalis squamata
Oxalis stricta  – common yellow woodsorrel, common yellow oxalis, upright yellow-sorrel, lemon clover, "pickle plant", "sourgrass, "yellow woodsorrel"
Oxalis suksdorfii – western yellow woodsorrel, western yellow oxalis
Oxalis tenuifolia
Oxalis texana
Oxa
Sources USDA, Nesom
Oxalis acetosella – common wood sorrel, stabwort
Oxalis adenophylla – Chilean oxalis, silver shamrock
Oxalis albicans – hairy woodsorrel, white oxalis, radishroot woodsorrel, radishroot yellow-sorrel, California yellow-sorrel
Oxalis albicans var. pilosa formerly O. pilosa 
Oxalis alpina – alpine sorrel
Oxalis ambigua
Oxalis amblyosepala
Oxalis amplifolia now considered O. drummondii 
Oxalis arborea Hort.
Oxalis arenia
Oxalis articulata Savign. – pink-sorrel
Oxalis articulata ssp. rubra  (St.Hil.) Lourteig
Oxalis ausensis
Oxalis barrelieri – lavender sorrel
Oxalis bowiei – Bowie's wood-sorrel, Cape shamrock
Oxalis brasiliensis
Oxalis bulbocastanum
Oxalis caerulea – blue woodsorrel
Oxalis caprina
Oxalis carnosa
Oxalis callosa
Oxalis chnoodes
Oxalis commutata
Oxalis compressa
Oxalis comptonii
Oxalis convexula
Oxalis corymbosa
Oxalis corniculata – creeping wood sorrel, procumbent yellow-sorrel, sleeping beauty, chichoda bhaji (India)
Oxalis crassipes – white wood sorrel
Oxalis debilis Kunth
Oxalis debilis var. corymbosa (DC.) Lourteig – large-flowered pink-sorrel (Synonym : O. corymbosa)
Oxalis decaphylla – ten-leaved pink-sorrel, tenleaf wood sorrel
Oxalis dehradunensis
Oxalis depressa
Oxalis dichondrifolia – peonyleaf wood sorrel
Oxalis dillenii Jacquin – southern yellow woodsorrel, Dillen's woodsorrel, Sussex yellow-sorrel
Oxalis drummondii – Drummond's woodsorrel, chevron oxalis
Oxalis ecuadorensis
Oxalis eggersii – Egger's wood-sorrel
Oxalis engleriana
Oxalis enneaphylla – scurvy-grass sorrel
Oxalis exilis – least yellow-sorrel
Oxalis fabaefolia
Oxalis flava
Oxalis florida
Oxalis fourcadei Salter
Oxalis frutescens – shrubby wood-sorrel
Oxalis frutescens ssp. angustifolia
Oxalis giftbergensis
Oxalis gigantea
Oxalis glabra – finger-leaf
Oxalis goniorhiza
Oxalis grandis – great yellow-sorrel, large yellow woodsorrel
Oxalis grayi is now considered O. decaphylla 
Oxalis griffithii Edgew. & Hook.f.
Oxalis hedysaroides – fire fern
Oxalis hirta – hairy sorrel
Oxalis hygrophila
Oxalis illinoensis – Illinois wood-sorrel
Oxalis inaequalis
Oxalis incarnata L. – pale pink-sorrel
Oxalis intermedia – West Indian wood-sorrel
Oxalis laciniata
Oxalis lasiandra – Mexican shamrock
Oxalis latifolia Kunth – garden pink-sorrel
Oxalis livida
Oxalis luederitzii
Oxalis luteola Jacq.
Oxalis macrocarpa
Oxalis magellanica G.Forst.
Oxalis magnifica Kunth – snowdrop wood-sorrel
Oxalis mallobolva
Oxalis massoniana
Oxalis megalorrhiza – fleshy yellow-sorrel
Oxalis meisneri
Oxalis melanosticta
Oxalis metcalfei now considered O. alpina 
Oxalis micrantha – dwarf woodsorrel
Oxalis montana – mountain woodsorrel, white woodsorrel
Oxalis monticola now considered O. alpina 
Oxalis namaquana
Oxalis natans
Oxalis nelsonii – Nelson's sorrel
Oxalis nigrescens A.St.-Hil.
Oxalis norlindiana
Oxalis obliquifolia
Oxalis obtusa
Oxalis oculifera
Oxalis oligophylla
Oxalis oregana – redwood sorrel, Oregon sorrel
Oxalis oreophila
Oxalis ortgiesii Regel – fishtail oxalis
Oxalis palmifrons
Oxalis pardalis
Oxalis pennelliana
Oxalis perennans
Oxalis peridicaria (= O. lobata)
Oxalis pes-caprae – Bermuda-buttercup, African wood-sorrel, Bermuda sorrel, buttercup oxalis, Cape sorrel, English weed, soursob, "goat's-foot", "sourgrass", soursop (not to be confused with the fruit of that name)
Oxalis pilosa see O. albicans 
Oxalis polyphylla
Oxalis polyphylla heptaphylla
Oxalis priceae – tufted yellow-sorrel
Oxalis puberula
Oxalis purpurea L. – purple wood-sorrel
Oxalis radicosa – dwarf woodsorrel
Oxalis regnellii – false shamrock, purple shamrock, love plant
Oxalis repens
Oxalis rosea Feuillée ex Jacq. – annual pink-sorrel
Oxalis rubens
Oxalis rubra A.St.-Hil. – red wood-sorrel
Oxalis rufescens
Oxalis rugeliana – coamo
Oxalis schaeferi
Oxalis spiralis – spiral sorrel, volcanic sorrel, velvet oxalis
Oxalis squamata
Oxalis stricta  – common yellow woodsorrel, common yellow oxalis, upright yellow-sorrel, lemon clover, "pickle plant", "sourgrass, "yellow woodsorrel"
Oxalis suksdorfii – western yellow woodsorrel, western yellow oxalis
Oxalis tenuifolia
Oxalis texana
Oxa
Oxalis