Portulaca rausii
Systematics
Taxonomy of Portulaca is still very controversial: micro-species vs. one polymorphic taxon (see El-Bakatoushi & al. 2013 on competing concepts).
El-Bakatoushi R., Alframawy A. M., Samer M., El-Sadek L. & Botros W. 2013: Evolution of the Portulaca oleracea L. aggregate in Egypt on molecular and phenotypic levels revealed by morphology, inter-simple sequence repeat (ISSR) and 18S rDNA gene sequence markers. - Flora 208: 464-477.
El-Bakatoushi R., Alframawy A. M., Samer M., El-Sadek L. & Botros W. 2013: Evolution of the Portulaca oleracea L. aggregate in Egypt on molecular and phenotypic levels revealed by morphology, inter-simple sequence repeat (ISSR) and 18S rDNA gene sequence markers. - Flora 208: 464-477.