Oenothera missouriensis var. typica Munz variety synonym

Oenothera graminifolia H.Lév. species proparte synonym

Oenothera macrocarpa var. missourensis (Sims) Carrière, 1884 variety accepted

Oenothera macrocarpa var. macrocarpa variety accepted

Oenothera missouriensis var. latifolia A.Gray variety synonym

Oenothera missouriensis var. incana A.Gray variety synonym

Oenothera missouriensis f. elongata F.C.Gates form synonym

Oenothera missourensis var. oklahomensis (Norton) Munz variety synonym

Oenothera macrocarpa subsp. oklahomensis (Norton) W.L.Wagner subspecies accepted

Oenothera macrocarpa var. missouriensis (Sims) Carrière variety synonym

Oenothera macrocarpa subsp. mexicana W.L.Wagner subspecies accepted

Oenothera macrocarpa subsp. incana (A.Gray) W.L.Wagner subspecies accepted

Oenothera macrocarpa subsp. fremontii (S.Watson) W.L.Wagner subspecies accepted

Oenothera alata Nutt. species heterotypic synonym

Megapterium oklahomensis Norton species synonym

Megapterium oklahomense Norton species synonym

Megapterium nuttallianum Spach species synonym

Megapterium missouriense (Sims) Spach species synonym

Megapterium macrocarpum (Nutt.) R.R.Gates species synonym

Megapterium fremontii (S.Watson) Britton species synonym

Oenothera fremontii S.Watson species synonym

Oenothera oklahomensis (Norton) Norton ex F.C.Gates species synonym

Oenothera wrightii Torr. species heterotypic synonym

Oenothera macrocarpa subsp. macrocarpa subspecies accepted

Oenothera oklahomensis (Norton) Hitchc. species synonym

Megapterium argyrophyllum R.R.Gates species proparte synonym

Oenothera missouriensis Sims species synonym

Oenothera macrocarpa var. oklahomensis (Norton) Reveal variety synonym

Oenothera macrocarpa var. incana (A.Gray) Reveal variety synonym

Oenothera missouriensis var. oklahomensis (Norton) Munz variety synonym

Oenothera fremontii var. fremontii variety synonym

Megapterium missouriensis (Sims) Spach species synonym

Oenothera macrocarpa Nutt. ex Pursh species heterotypic synonym

Lavauxia graminifolia (H.Lév.) Rose species proparte synonym

Oenothera missouriensis f. intermedia H.Lév. form synonym

Oenothera oklahomensis (Norton) Norton species homotypic synonym