Oenothera biennis
aka Oenothera biennis var. grandiflora Oenothera biennis var. pycnocarpa Oenothera cambrica Oenothera carinthiaca Oenothera muricata Oenothera paradoxa Oenothera pycnocarpa Oenothera royfraseri Oenothera rubricaulis Oenothera sackvillensis var. royfraseri Oenothera suaveolens