Gayophytum gligospermum F.H.Lewis & Szweyk. species synonym

Gayophytum humile var. humile variety synonym

Oenothera caesia Nutt. species synonym

Gayophytum parviflorum Mscr. species accepted

Gayophytum hirtellum Greene species homotypic synonym

Gayophytum racemosum Nutt. species homotypic synonym

Oenothera racemosa Nutt. species synonym

Gayophytum ramosissimum var. ramosissimum variety synonym

Gayophytum racemosum var. racemosum variety synonym

Oenothera gayophytum H.Lév. species synonym

Camissonia paradoxa (Spach) Reiche species synonym

Oenothera micrantha C.Presl species heterotypic synonym

Gayophytum andicola Kuntze species doubtful

Holostigma paradoxum Spach species synonym

Gayophytum ramosissimum Torr. & A.Gray species accepted

Gayophytum humile Juss. species accepted

Gayophytum nuttallii Torr. & A.Gray species synonym

Gayophytum diffusum Torr. & A.Gray species accepted

Gayophytum racemosum Nutt. ex Torr. & A.Gray species accepted

Gayophytum humile var. hirtellum Munz variety synonym

Gayophytum helleri Rydb. species synonym

Gayophytum helleri var. glabrum Munz variety synonym

Gayophytum racemosum var. caesium (Torr. & A.Gray) Munz variety synonym

Gayophytum heterozygum F.H.Lewis & Szweyk. species accepted

Gayophytum diffusum var. villosum Munz variety synonym

Gayophytum oligospermum F.H.Lewis & Szweyk. species accepted

Gayophytum eriospermun Coville species synonym

Gayophytum decipiens F.H.Lewis & Szweyk. species accepted

Gayophytum eriospermum Coville species accepted

Gayophytum humile var. gracile (Phil.) Reiche variety proparte synonym

Gayophytum diffusum var. diffusum variety synonym

Gayophytum robustum Phil. species synonym

Gayophytum ramosissimum var. pygmeum Jeps. variety synonym

Gayophytum ramosissimum var. obtusum Jeps. variety synonym

Gayophytum ramosissimum var. deflexum Hook. variety synonym

Sphaerostigma paradoxum (Spach) Gay species synonym

Gayophytum racemosum var. typicum Munz variety synonym

Gayophytum pumilum S.Watson species synonym

Gayophytum nuttallii var. typicum Munz variety synonym

Gayophytum minutum Phil. species synonym

Gayophytum micranthum (C.Presl) Hook. & Arn. species accepted

Gayophytum lasiospermum var. eriospermum (Coville) Jeps. variety synonym

Gayophytum humile var. typicum Munz variety synonym

Gayophytum humile var. robustum (Phil.) Reiche variety synonym

Gayophytum humile var. gracile (Phil.) Reiche variety proparte synonym

Gayophytum humile var. densifolium (Phil.) Reiche variety synonym

Gayophytum hirtellum Greene ex C.F.Baker species doubtful

Gayophytum helleri var. typicum Munz variety synonym

Gayophytum gracile Phil. species synonym

Gayophytum diffusum var. typicum Munz variety synonym

Gayophytum densifolium Phil. species synonym

Gayophytum caesium Torr. & A.Gray species synonym

Oenothera gracilis (Phil.) H.Lév. species heterotypic synonym

Oenothera gayophytum f. robusta (Phil.) H.Lév. form synonym

Oenothera gayophytum f. ramosissima (Torr. & A.Gray) H.Lév. form synonym

Oenothera gayophytum var. minuta (Phil.) H.Lév. variety synonym

Oenothera gayophytum f. densifolia (Phil.) H.Lév. form synonym

Oenothera gayophytum f. caesia (Torr. & A.Gray) H.Lév. form synonym

Oenothera ramosissima Nutt. species synonym

Gaura humilis (A.Juss.) D.Dietr. species synonym