| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| OXYRI | Oxyria Hill | mountainsorrel | Polygonaceae
|
| OXHIR | Oxyrrhynchium hians (Hedw.) Loeske ssp. rappii (Williams) Wijk & Marg. | Eurhynchium hians | Brachytheciaceae
|
| OXHI5 | Oxyrrhynchium hians (Hedw.) Loeske | Eurhynchium hians | Brachytheciaceae
|
| OXPRC2 | Oxyrrhynchium praelongum (Hedw.) Warnst. var. californicum (Grout) Wijk & Marg. | Eurhynchium praelongum | Brachytheciaceae
|
| OXPRS | Oxyrrhynchium praelongum (Hedw.) Warnst. var. stokesii (Turn.) Podp. | Eurhynchium praelongum | Brachytheciaceae
|
| OXPR3 | Oxyrrhynchium praelongum (Hedw.) Warnst. | Eurhynchium praelongum | Brachytheciaceae
|
| OXRI3 | Oxyrrhynchium riparioides (Hedw.) Jenn. | Platyhypnidium riparoides | Brachytheciaceae
|
| OXRU5 | Oxyrrhynchium rusciforme Warnst. | Platyhypnidium riparoides | Brachytheciaceae
|
| OXPA3 | Oxyspora paniculata (D. Don) DC. | bristletips | Melastomataceae
|
| OXYSP | Oxyspora DC. | oxyspora | Melastomataceae
|
| OXRE4 | Oxystegus recurvifolius (Tayl.) Zand. | Paraleptodontium recurvifolium | Pottiaceae
|
| OXSP4 | Oxystegus spiralis (Grout) Crum & Anderson | spiral oxystegus moss | Pottiaceae
|
| OXTES | Oxystegus tenuirostris (Hook. & Tayl.) A. J. E. Sm. var. stenocarpus (Th�r.) Zand. | Oxystegus spiralis | Pottiaceae
|
| OXTE5 | Oxystegus tenuirostris (Hook. & Tayl.) A. J. E. Sm. | oxystegus moss | Pottiaceae
|
| OXYST2 | Oxystegus (Limpr.) Hilp. | oxystegus moss | Pottiaceae
|
| OXLU | Oxystylis lutea Torr. & Fr�m. | spiny caper | Capparaceae
|
| OXYST | Oxystylis Torr. & Fr�m. | oxystylis | Capparaceae
|
| OXAB2 | Oxytenanthera abyssinica (A. Rich.) Munro | Abyssinia oxytenanthera | Poaceae
|
| OXYTE2 | Oxytenanthera Munro | oxytenanthera | Poaceae
|
| OXAC4 | Oxytenia acerosa Nutt. | Iva acerosa | Asteraceae
|
| OXAB | Oxytheca abramsii McGregor | Oxytheca parishii var. abramsii | Polygonaceae
|
| OXCA3 | Oxytheca caryophylloides Parry | chickweed oxytheca | Polygonaceae
|
| OXDE | Oxytheca dendroidea Nutt. | narrowleaf oxytheca | Polygonaceae
|
| OXEM | Oxytheca emarginata Hall | whitemargin oxytheca | Polygonaceae
|
| OXFO2 | Oxytheca foliosa Nutt. | Oxytheca dendroidea | Polygonaceae
|
| OXGL3 | Oxytheca glandulosa Nutt. | Eriogonum glandulosum | Polygonaceae
|
| OXHI4 | Oxytheca hirtiflora (Gray ex S. Wats.) Greene | Eriogonum hirtiflorum | Polygonaceae
|
| OXIN7 | Oxytheca inermis S. Wats. | Eriogonum inerme var. inerme | Polygonaceae
|
| OXIN6 | Oxytheca insignis (Curran) Goodman | Aristocapsa insignis | Polygonaceae
|
| OXLU2 | Oxytheca luteola Parry | Goodmania luteola | Polygonaceae
|
| OXPAA2 | Oxytheca parishii Parry ssp. abramsii (McGregor) Munz | Oxytheca parishii var. abramsii | Polygonaceae
|
| OXPAA | Oxytheca parishii Parry var. abramsii (McGregor) Munz | Abrams' oxytheca | Polygonaceae
|
| OXPAC | Oxytheca parishii Parry var. cienegensis Ertter | Cienega Seca oxytheca | Polygonaceae
|
| OXPAG | Oxytheca parishii Parry var. goodmaniana Ertter | Cushenbury oxytheca | Polygonaceae
|
| OXPAP | Oxytheca parishii Parry var. parishii | Parish's oxytheca | Polygonaceae
|
| OXPA | Oxytheca parishii Parry | Parish's oxytheca | Polygonaceae
|
| OXPE2 | Oxytheca perfoliata Torr. & Gray | roundleaf oxytheca | Polygonaceae
|
| OXSP3 | Oxytheca spergulinum (Gray) Greene | Eriogonum spergulinum var. spergulinum | Polygonaceae
|
| OXTR2 | Oxytheca trilobata Gray | threelobe oxytheca | Polygonaceae
|
| OXWA | Oxytheca watsonii Torr. & Gray | Watson's oxytheca | Polygonaceae
|
| OXYTH | Oxytheca Nutt. | oxytheca | Polygonaceae
|
| OXAL3 | Oxytria albiflora (Raf.) Pollard | Schoenolirion albiflorum | Liliaceae
|
| OXCR | Oxytria crocea (Michx.) Raf. | Schoenolirion croceum | Liliaceae
|
| OXTE2 | Oxytria texana (Scheele) Pollard | Schoenolirion wrightii | Liliaceae
|
| OXAL5 | Oxytropis alpicola (Rydb.) M.E. Jones | Oxytropis campestris var. cusickii | Fabaceae
|
| OXARA | Oxytropis arctica R. Br. var. arctica | arctic locoweed | Fabaceae
|
| OXARB | Oxytropis arctica R. Br. var. barnebyana Welsh | Barneby's locoweed | Fabaceae
|
| OXARK | Oxytropis arctica R. Br. var. koyukukensis (Porsild) Welsh | Koyukuk locoweed | Fabaceae
|
| OXAR2 | Oxytropis arctica R. Br. | arctic locoweed | Fabaceae
|
| OXBEA | Oxytropis besseyi (Rydb.) Blank. var. argophylla (Rydb.) Barneby | Montana locoweed | Fabaceae
|
| OXBEB | Oxytropis besseyi (Rydb.) Blank. var. besseyi | Bessey's locoweed | Fabaceae
|
| OXBEF | Oxytropis besseyi (Rydb.) Blank. var. fallax Barneby | Bessey's locoweed | Fabaceae
|
| OXBEO | Oxytropis besseyi (Rydb.) Blank. var. obnapiformis (C.L. Porter) Welsh | Bessey's locoweed | Fabaceae
|
| OXBES | Oxytropis besseyi (Rydb.) Blank. var. salmonensis Barneby | Salmon River locoweed | Fabaceae
|
| OXBEV | Oxytropis besseyi (Rydb.) Blank. var. ventosa (Greene) Barneby | Bessey's locoweed | Fabaceae
|
| OXBE2 | Oxytropis besseyi (Rydb.) Blank. | Bessey's locoweed | Fabaceae
|
| OXBOA | Oxytropis borealis DC. var. australis Welsh | boreal locoweed | Fabaceae
|
| OXBOB | Oxytropis borealis DC. var. borealis | boreal locoweed | Fabaceae
|
| OXBOS | Oxytropis borealis DC. var. sulphurea (Porsild) Welsh | boreal locoweed | Fabaceae
|
| OXBOV | Oxytropis borealis DC. var. viscida (Nutt.) Welsh | viscid locoweed | Fabaceae
|
| OXBO | Oxytropis borealis DC. | boreal locoweed | Fabaceae
|
| OXBR2 | Oxytropis bryophila Jurtzev | Oxytropis nigrescens | Fabaceae
|
| OXCAG4 | Oxytropis campestris (L.) DC. ssp. gracilis (A. Nels.) Hult�n | Oxytropis monticola | Fabaceae
|
| OXCAJ2 | Oxytropis campestris (L.) DC. ssp. jordalii (Porsild) Hult�n | Oxytropis campestris var. jordalii | Fabaceae
|
| OXCAM | Oxytropis campestris (L.) DC. ssp. melanocephala Hook. | Oxytropis maydelliana | Fabaceae
|
| OXCAR2 | Oxytropis campestris (L.) DC. ssp. roaldii (Ostenf.) Cody | Oxytropis campestris var. roaldii | Fabaceae
|
| OXCAV2 | Oxytropis campestris (L.) DC. ssp. varians (Rydb.) Cody | Oxytropis campestris var. varians | Fabaceae
|
| OXCAC4 | Oxytropis campestris (L.) DC. var. cervinus (Greene) Boivin | Oxytropis monticola | Fabaceae
|
| OXCAC | Oxytropis campestris (L.) DC. var. chartacea (Fassett) Barneby | field locoweed | Fabaceae
|
| OXCAC2 | Oxytropis campestris (L.) DC. var. columbiana (St. John) Barneby | field locoweed | Fabaceae
|
| OXCAC3 | Oxytropis campestris (L.) DC. var. cusickii (Greenm.) Barneby | Cusick's locoweed | Fabaceae
|
| OXCAD | Oxytropis campestris (L.) DC. var. dispar (A. Nels.) Barneby | field locoweed | Fabaceae
|
| OXCAG2 | Oxytropis campestris (L.) DC. var. glabrata Hook. | Oxytropis maydelliana | Fabaceae
|
| OXCAG | Oxytropis campestris (L.) DC. var. gracilis (A. Nels.) Barneby | Oxytropis monticola | Fabaceae
|
| OXCAJ | Oxytropis campestris (L.) DC. var. johannensis Fern. | Johann's locoweed | Fabaceae
|
| OXCAJ3 | Oxytropis campestris (L.) DC. var. jordalii (Porsild) Welsh | Jordal's locoweed | Fabaceae
|
| OXCAR3 | Oxytropis campestris (L.) DC. var. roaldii (Ostenf.) Welsh | Roald's locoweed | Fabaceae
|
| OXCAR | Oxytropis campestris (L.) DC. var. rydbergii (A. Nels.) R.J. Davis | Oxytropis campestris var. cusickii | Fabaceae
|
| OXCAS3 | Oxytropis campestris (L.) DC. var. spicata Hook. | field locoweed | Fabaceae
|
| OXCAV | Oxytropis campestris (L.) DC. var. varians (Rydb.) Barneby | field locoweed | Fabaceae
|
| OXCAW | Oxytropis campestris (L.) DC. var. wanapum E. Joyal | field locoweed | Fabaceae
|
| OXCA4 | Oxytropis campestris (L.) DC. | field locoweed | Fabaceae
|
| OXCH | Oxytropis chartacea Fassett | Oxytropis campestris var. chartacea | Fabaceae
|
| OXCO13 | Oxytropis columbiana St. John | Oxytropis campestris var. columbiana | Fabaceae
|
| OXCO12 | Oxytropis coronaminis Fern. | Oxytropis arctica var. arctica | Fabaceae
|
| OXCU3 | Oxytropis cusickii Greenm. | Oxytropis campestris var. cusickii | Fabaceae
|
| OXDEF2 | Oxytropis deflexa (Pallas) DC. ssp. foliolosa (Hook.) Cody | Oxytropis deflexa var. foliolosa | Fabaceae
|
| OXDES2 | Oxytropis deflexa (Pallas) DC. ssp. sericea (Torr. & Gray) Cody | Oxytropis deflexa var. sericea | Fabaceae
|
| OXDEC2 | Oxytropis deflexa (Pallas) DC. var. capitata Boivin | Oxytropis deflexa var. foliolosa | Fabaceae
|
| OXDEF | Oxytropis deflexa (Pallas) DC. var. foliolosa (Hook.) Barneby | nodding locoweed | Fabaceae
|
| OXDEP | Oxytropis deflexa (Pallas) DC. var. parviflora Boivin | Oxytropis deflexa var. sericea | Fabaceae
|
| OXDEP2 | Oxytropis deflexa (Pallas) DC. var. pulcherrima Welsh & A. Huber | nodding locoweed | Fabaceae
|
| OXDES | Oxytropis deflexa (Pallas) DC. var. sericea Torr. & Gray | blue nodding locoweed | Fabaceae
|
| OXDE2 | Oxytropis deflexa (Pallas) DC. | nodding locoweed | Fabaceae
|
| OXDE6 | Oxytropis deflexa auct. non (Pallas) DC. p.p. | Oxytropis deflexa var. foliolosa | Fabaceae
|
| OXDI4 | Oxytropis dispar (A. Nels.) K. Schum. | Oxytropis campestris var. dispar | Fabaceae
|
| OXFO3 | Oxytropis foliolosa Hook. | Oxytropis deflexa var. foliolosa | Fabaceae
|
| OXGA | Oxytropis gaspensis Fern. & Kelsey | Oxytropis borealis var. viscida | Fabaceae
|
| OXGL2 | Oxytropis glaberrima Hult�n | Oxytropis nigrescens | Fabaceae
|
| OXGL5 | Oxytropis glabrata (Hook.) A. Nels. | Oxytropis maydelliana | Fabaceae
|
| OXGL6 | Oxytropis glutinosa Porsilid | Oxytropis borealis var. borealis | Fabaceae
|