Oenothera densiflora Lindl. = Boisduvalia densiflora (Lindl.) Bartl.
English:
densiflorus,-a,-um;

https://archive.org/stream/mobot31753002748314#page/1593/mode/2up
homotypic synonyms:
Boisduvalia densiflora (Lindl.) Bartl.; Boisduvalia densiflora (Lindl.) S. Watson in Brewer & S. Watson; Epilobium densiflorum (Lindl.) Hoch & P.H.Raven;

protologue: Edwards’s Bot. Reg. 19: t. 1593 (1833)

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