The study presents new data on the occurrences of species of the genus Oenothera in Morocco, highlighting the identification challenges due to the strong morphological resemblance between taxa. For the first time, Oenothera laciniata is reported in the country, while the presence of Oenothera indecora and Oenothera drummondii is confirmed in the provinces of Kénitra and Tétouan, respectively. It is noteworthy that the latter species had previously been confused with Oenothera biennis. These three taxa of American origin, rare in Morocco, have been observed in coastal sandy habitats. Furthermore, it is shown that Oenothera lindheimeri, a species cultivated for ornamental purposes, occasionally escapes from cultivation areas. To facilitate accurate identification, this article provides detailed morphological descriptions, accompanied by illustrations, a comparison with related species, and an updated dichotomous key for the genus Oenothera in Morocco.
Réf. Homrani Bakali A. & Khamar H., 2025 New records and floristic notes on the genus Oenothera (Onagraceae) in Morocco. – Botanica, 31(4): 142–154. https://doi.org/10.35513/Botlit.2025.4.1
Posted by Jean-Paul Peltier.