any plant of the large taxonomically complicated American genus Oenothera, typically having yellow flowers that open in the evening: family Onagraceae: See evening primrose
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
How to use oenothera in a sentence
oenothera biennis has been seen bearing flowers of three different colours.The Variation of Animals and Plants Under Domestication, Vol. I. | Charles Darwin
The European types of oenothera biennis and O. muricata are in the same condition.Darwin and Modern Science | A.C. Seward and Others
MacDougal also obtained a more or less distinct mutant of oenothera biennis.Darwin and Modern Science | A.C. Seward and Others
The classical example of a mutating plant is the evening primrose of the species oenothera lamarckiana.The Making of Species | Douglas Dewar
We gathered twenty species of flowers here, among them a tiny scarlet mallow and a white oenothera or evening primrose.