| Physaria acutifolia Rydb. |
Accepted |
 |
TRO |
| Physaria acutifolia var. acutifolia |
Synonym |
 |
TRO |
| Physaria acutifolia var. purpurea S.L. Welsh & Reveal |
Synonym |
 |
TRO |
| Physaria acutifolia var. repanda (Rollins) S.L. Welsh |
Synonym |
 |
TRO |
| Physaria acutifolia var. stylosa (Rollins) S.L. Welsh |
Synonym |
 |
TRO |
| Physaria alpestris Suksd. |
Accepted |
 |
TRO |
| Physaria alpina Rollins |
Unresolved |
 |
WCSP (in review) |
| Physaria angustifolia (Nutt. ex Torr. & A. Gray) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria arctica (Wormsk. ex Hornem.) O'Kane & Al-Shehbaz |
Synonym |
 |
TRO |
| Physaria arenosa (Richardson) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria arenosa subsp. arenosa |
Accepted |
 |
TRO |
| Physaria arenosa subsp. argillosa (Rollins & E.A. Shaw) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria argentea (Schauer) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria argentea (Pursh) MacMill. |
Synonym |
 |
TRO |
| Physaria argyraea (A. Gray) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria argyraea subsp. argyraea |
Accepted |
 |
TRO |
| Physaria argyraea subsp. diffusa (Rollins) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria arizonica (S. Watson) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria arizonica var. andrusensis N.D. Atwood, S.L. Welsh & L.C. Higgins |
Synonym |
 |
TRO |
| Physaria aurea (Wooton) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria australis (Payson) Rollins |
Synonym |
 |
TRO |
| Physaria bellii G.A.Mulligan |
Unresolved |
 |
WCSP (in review) |
| Physaria berlandieri (S. Watson) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria brassicoides Rydb. |
Unresolved |
 |
WCSP (in review) |
| Physaria calcicola (Rollins) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria calderi (G.A. Mulligan & A.E. Porsild) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria carinata (Rollins) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria carinata subsp. carinata |
Accepted |
 |
TRO |
| Physaria carinata subsp. paysonii (Rollins) O'Kane |
Accepted |
 |
TRO |
| Physaria carinata subsp. pulchella (Rollins) O'Kane |
Accepted |
 |
TRO |
| Physaria chambersii Rollins |
Unresolved |
 |
WCSP (in review) |
| Physaria chambersii var. membranacea Rollins |
Synonym |
 |
TRO |
| Physaria cinerea (S. Watson) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria cobrensis (Rollins & E.A. Shaw) N.H. Holmgren |
Accepted |
 |
TRO |
| Physaria condensata Rollins |
Unresolved |
 |
WCSP (in review) |
| Physaria congesta (Rollins) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria cordiformis Rollins |
Accepted |
 |
TRO |
| Physaria crassistigma O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria curvipes (A. Nelson) Grady & O'Kane |
Accepted |
 |
TRO |
| Physaria densiflora (A. Gray) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria densifolia (A. Gray) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria didymocarpa (Hook.) A.Gray |
Accepted |
 |
WCSP (in review) |
| Physaria didymocarpa var. australis Payson |
Synonym |
 |
TRO |
| Physaria didymocarpa var. didymocarpa |
Synonym |
 |
TRO |
| Physaria didymocarpa subsp. didymocarpa |
Accepted |
 |
TRO |
| Physaria didymocarpa var. integrifolia Rollins |
Synonym |
 |
TRO |
| Physaria didymocarpa var. lanata A. Nelson |
Synonym |
 |
TRO |
| Physaria didymocarpa subsp. lanata (A. Nelson) O'Kane |
Accepted |
 |
TRO |
| Physaria didymocarpa var. lyrata C.L. Hitchc. |
Synonym |
 |
TRO |
| Physaria didymocarpa subsp. lyrata (C.L. Hitchc.) O'Kane |
Accepted |
 |
TRO |
| Physaria didymocarpa var. newberryi (A. Gray) M.E. Jones |
Synonym |
 |
TRO |
| Physaria dornii Lichvar |
Unresolved |
 |
WCSP (in review) |
| Physaria douglasii (S. Watson) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria douglasii subsp. douglasii |
Accepted |
 |
TRO |
| Physaria douglasii subsp. tuplashensis (Rollins, K.A. Beck & Caplow) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria eburniflora Rollins |
Unresolved |
 |
WCSP (in review) |
| Physaria engelmannii (A. Gray) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria eriocarpa Grady & O'Kane |
Unresolved |
 |
WCSP (in review) |
| Physaria fendleri (A. Gray) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria filiformis (Rollins) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria floribunda Rydb. |
Unresolved |
 |
WCSP (in review) |
| Physaria floribunda var. floribunda |
Synonym |
 |
TRO |
| Physaria floribunda subsp. floribunda |
Unresolved |
 |
TRO |
| Physaria floribunda var. osterhoutii (Payson) Rollins |
Synonym |
 |
TRO |
| Physaria floribunda subsp. osterhoutii (Payson) O'Kane |
Unresolved |
 |
TRO |
| Physaria fremontii (Rollins & E.A. Shaw) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria garrettii (Payson) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria geyeri (Hook.) A. Gray |
Accepted |
 |
TRO |
| Physaria geyeri var. geyeri |
Synonym |
 |
TRO |
| Physaria geyeri subsp. geyeri |
Accepted |
 |
TRO |
| Physaria geyeri var. purpurea Rollins |
Synonym |
 |
TRO |
| Physaria geyeri subsp. purpurea (Rollins) O'Kane |
Accepted |
 |
TRO |
| Physaria globosa (Desv.) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria gooddingii (Rollins & E.A. Shaw) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria goodrichii (Rollins) O'Kane & Al-Shehbaz |
Synonym |
 |
TRO |
| Physaria gordonii (A. Gray) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria gordonii subsp. densifolia (Rollins) O'Kane & Al-Shehbaz |
Synonym |
 |
TRO |
| Physaria gordonii subsp. gordonii |
Synonym |
 |
TRO |
| Physaria gracilis (Hook.) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria gracilis subsp. gracilis |
Accepted |
 |
TRO |
| Physaria gracilis subsp. nuttallii (Torr. & A. Gray) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria grahamii C.V. Morton |
Accepted |
 |
TRO |
| Physaria hemiphysaria (Maguire) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria hemiphysaria subsp. hemiphysaria |
Accepted |
 |
TRO |
| Physaria hemiphysaria subsp. lucens (S.L. Welsh & Reveal) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria hitchcockii (Munz) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria hitchcockii subsp. confluens (Maguire & A.H. Holmgren) O'Kane |
Accepted |
 |
TRO |
| Physaria hitchcockii subsp. hitchcockii |
Accepted |
 |
TRO |
| Physaria hitchcockii subsp. rubicundula (Rollins) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria humilis (Rollins) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria inflata (Rollins & E.A. Shaw) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria integrifolia (Rollins) Lichvar |
Accepted |
 |
TRO |
| Physaria intermedia (S. Watson) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria johnstonii (Rollins) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria kaibabensis (Rollins) N.H. Holmgren |
Accepted |
 |
TRO |
| Physaria kingii (S. Watson) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria kingii subsp. bernardina (Munz) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria kingii subsp. cobrensis (Rollins & E.A. Shaw) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria kingii subsp. diversifolia (Greene) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria kingii var. diversifolia (Greene) B.L. Turner |
Unresolved |
 |
TRO |
| Physaria kingii subsp. kaibabensis (Rollins) O'Kane |
Accepted |
 |
TRO |
| Physaria kingii subsp. kingii |
Accepted |
 |
TRO |
| Physaria kingii subsp. latifolia (A. Nelson) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria kingii var. parvifolia (Maguire & A.H. Holmgren) S.L. Welsh |
Accepted |
 |
TRO |
| Physaria kingii subsp. utahensis (Rydb.) O'Kane |
Accepted |
 |
TRO |
| Physaria klausii (Rollins) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria lanata (A. Nelson) Rydb. |
Synonym |
 |
TRO |
| Physaria lata (Wooton & Standl.) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria lateralis O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria lepidota Rollins |
Unresolved |
 |
WCSP (in review) |
| Physaria lepidota var. lepidota |
Synonym |
 |
TRO |
| Physaria lepidota subsp. lepidota |
Unresolved |
 |
TRO |
| Physaria lepidota var. membranacea (Rollins) Rollins |
Synonym |
 |
TRO |
| Physaria lepidota subsp. membranacea (Rollins) O'Kane |
Unresolved |
 |
TRO |
| Physaria lesicii (Rollins) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria lindheimeri (A. Gray) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria ludoviciana (Nutt.) O'Kane & Al-Shehbaz |
Synonym |
 |
TRO |
| Physaria macrantha Blank. |
Synonym |
 |
TRO |
| Physaria macrocarpa (A. Nelson) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria mcvaughiana (Rollins) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria mendocina (Phil.) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria mexicana (Rollins) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria mirandiana (Rollins) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria montana (A. Gray) Greene |
Accepted |
 |
TRO |
| Physaria multiceps (Maguire) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria navajoensis (O'Kane) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria nelsonii O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria newberryi A. Gray |
Accepted |
 |
TRO |
| Physaria newberryi var. newberryi |
Accepted |
 |
TRO |
| Physaria newberryi subsp. newberryi |
Unresolved |
 |
TRO |
| Physaria newberryi var. racemosa Rollins |
Synonym |
 |
TRO |
| Physaria newberryi var. yesicola Sivinski |
Synonym |
 |
TRO |
| Physaria newberryi subsp. yesicola (Sivinski) O'Kane |
Accepted |
 |
TRO |
| Physaria obcordata Rollins |
Unresolved |
 |
WCSP (in review) |
| Physaria obdeltata (Rollins) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria occidentalis (S. Watson) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria occidentalis subsp. cinerascens (Maguire & A.H. Holmgren) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria occidentalis var. goodrichii (Rollins) S.L. Welsh |
Accepted |
 |
TRO |
| Physaria occidentalis subsp. occidentalis |
Accepted |
 |
TRO |
| Physaria occidentalis var. occidentalis |
Unresolved |
 |
TRO |
| Physaria okanensis Al-Shehbaz & Prina |
Unresolved |
 |
TRO |
| Physaria oregona S. Watson |
Accepted |
 |
TRO |
| Physaria osterhoutii Payson |
Synonym |
 |
TRO |
| Physaria ovalifolia (Rydb.) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria ovalifolia subsp. alba (Goodman) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria ovalifolia subsp. ovalifolia |
Accepted |
 |
TRO |
| Physaria pachyphylla O'Kane & Grady |
Unresolved |
 |
WCSP (in review) |
| Physaria pallida (Torr. & A. Gray) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria palmeri (S. Watson) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria parviflora (Rollins) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria parvula (Greene) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria paysonii (Rollins) O'Kane & Al-Shehbaz |
Synonym |
 |
TRO |
| Physaria pendula (Rollins) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria peninsularis (Wiggins) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria pinetorum (Wooton & Standl.) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria prostrata (A. Nelson) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria pruinosa (Greene) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria pueblensis (Payson) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria pulchella (Rollins) O'Kane & Al-Shehbaz |
Synonym |
 |
TRO |
| Physaria pulvinata O'Kane & Reveal |
Unresolved |
 |
WCSP (in review) |
| Physaria purpurea (A. Gray) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria purpurea var. foliosa (Rollins) B.L. Turner |
Accepted |
 |
TRO |
| Physaria pycnantha Grady & O'Kane |
Unresolved |
 |
WCSP (in review) |
| Physaria pygmaea O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria rectipes (Wooton & Standl.) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria recurvata (Engelm. ex A. Gray) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria reediana O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria reediana subsp. reediana |
Synonym |
 |
TRO |
| Physaria reediana subsp. spatulata (Rydb.) O'Kane & Al-Shehbaz |
Synonym |
 |
TRO |
| Physaria reediana var. spatulata (Rydb.) B.L. Turner |
Synonym |
 |
TRO |
| Physaria repanda Rollins |
Synonym |
 |
TRO |
| Physaria rollinsii G.A.Mulligan |
Unresolved |
 |
WCSP (in review) |
| Physaria rosei (Rollins) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria rosei subsp. perotensis (Rollins) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria rosei subsp. rosei |
Accepted |
 |
TRO |
| Physaria rubicundula (Rollins) S.L. Welsh |
Accepted |
 |
TRO |
| Physaria rubicundula var. tumulosa (Barneby) S.L. Welsh |
Synonym |
 |
TRO |
| Physaria saximontana Rollins |
Unresolved |
 |
WCSP (in review) |
| Physaria saximontana var. dentata Rollins |
Synonym |
 |
TRO |
| Physaria saximontana subsp. dentata (Rollins) O'Kane |
Unresolved |
 |
TRO |
| Physaria saximontana var. saximontana |
Synonym |
 |
TRO |
| Physaria saximontana subsp. saximontana |
Unresolved |
 |
TRO |
| Physaria schaffneri (S. Watson) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria scrotiformis O'Kane |
Unresolved |
 |
WCSP (in review) |
| Physaria sessilis (S. Watson) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria sinuosa (Rollins) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria spatulata (Rydb.) Grady & O'Kane |
Accepted |
 |
TRO |
| Physaria stylosa Rollins |
Synonym |
 |
TRO |
| Physaria subumbellata (Rollins) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria tenella (A. Nelson) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria thamnophila (Rollins & E.A. Shaw) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria tumulosa (Barneby) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria urbaniana (Muschl.) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria utahensis (Rydb.) O'Kane & Al-Shehbaz |
Synonym |
 |
TRO |
| Physaria valida (Greene) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria vicina (J.L. Anderson, Reveal & Rollins) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |
| Physaria vigana B.L.Turner |
Unresolved |
 |
WCSP (in review) |
| Physaria vitulifera Rydb. |
Unresolved |
 |
WCSP (in review) |
| Physaria wardii (S. Watson) O'Kane & Al-Shehbaz |
Synonym |
 |
TRO |
| Physaria wyndii (Rollins & E.A. Shaw) O'Kane & Al-Shehbaz |
Accepted |
 |
TRO |