Sphaerostigma dentatum subsp. campestre (Greene) Johans. subspecies synonym

Camissonia campestris subsp. cruciata (Greene) K.Rostanski subspecies synonym

Camissonia heteranthera P.H.Raven species doubtful

Oenothera cheiranthifolia var. contorta (Douglas ex Lehm.) H.Lév. variety synonym

Oenothera parvula Nutt. species synonym

Camissonia lavandulaefolia P.H.Raven species doubtful

Sphaerostigma guariflorum Walp. species doubtful

Camissonia contorta P.H.Raven species doubtful

Camissonia bilgardii P.H.Raven species doubtful

Sphaerostigma flexuosum (A.Nelson) Rydb. species synonym

Camissonia kernensis var. kernensis variety synonym

Oenothera kernensis Munz species synonym

Camissonia dentata (Cav.) Reiche species accepted

Sphaerostigma contortum Walp. species proparte synonym

Camissonia tenuifolia Raim., 1893 species accepted

Camissonia dentata var. dentata variety synonym

Oenothera strigulosa Benth. species synonym

Camissonia sierrae P.H.Raven species accepted

Camissonia integrifolia P.H.Raven species accepted

Camissonia pubens (S.Watson) P.H.Raven species accepted

Oenothera pubens (S.Watson) Munz species synonym

Oenothera contorta var. pubens (S.Watson) Coville variety synonym

Oenothera strigulosa var. pubens S.Watson variety synonym

Camissonia contorta (Douglas) Kearney species accepted

Oenothera contorta Douglas ex Lehm. species synonym

Camissonia campestris (Greene) P.H.Raven species accepted

Camissonia parvula (Nutt. ex Torr. & A.Gray) P.H.Raven species accepted

Oenothera parvula Nutt. ex Torr. & A.Gray species synonym

Camissonia benitensis P.H.Raven species accepted

Camissonia lacustris P.H.Raven species accepted

Camissonia strigulosa (Fisch. & C.A.Mey.) P.H.Raven species accepted

Oenothera contorta var. strigulosa (Fisch. & C.A.Mey.) Munz variety synonym

Oenothera strigulosa (Fisch. & C.A.Mey.) Torr. & A.Gray species synonym

Oenothera contorta var. epilobioides (Greene) Munz variety synonym

Camissonia kernensis (Munz) P.H.Raven species accepted

Camissonia pusilla P.H.Raven species accepted

Oenothera contorta var. flexuosa (A.Nelson) Munz variety proparte synonym

Sphaerostigma contortum Walp. species proparte synonym

Oenothera contorta var. flexuosa (A.Nelson) Munz variety proparte synonym

Oenothera dentata var. cruciata S.Watson variety proparte synonym

Oenothera cruciata (S.Watson) Munz species proparte synonym

Sphaerostigma contorta var. pubens (S.Watson) Small variety synonym

Sphaerostigma dentata subsp. campestre (Greene) Johans. subspecies synonym

Sphaerostigma contorta var. flexuosum A.Nelson variety synonym

Oenothera strigulosa var. epilobioides Greene variety synonym

Sphaerostigma strigulosum Fisch. & C.A.Mey. species synonym

Sphaerostigma pubens (S.Watson) Rydb. species synonym

Sphaerostigma parvulum (Nutt. ex Torr. & A.Gray) Walp. species synonym

Sphaerostigma orthocarpum A.Nelson & P.B.Kenn. species synonym

Sphaerostigma filiforme A.Nelson species synonym

Sphaerostigma contortum var. pubens (S.Watson) Small variety synonym

Sphaerostigma contortum var. greenei Small variety synonym

Sphaerostigma contortum var. flexuosum A.Nelson variety synonym

Camissonia contorta var. pubens Kearney variety synonym

Oenothera contorta var. typica Munz variety synonym