Additions to the flora of the Penza and Saratov regions (fam. Chenopodiaceae and Plumbaginaceae)

Additions to the Chenopodiaceae s.str. (Amaranthaceae s.l.) and Plumbaginaceae families for the Penza and Saratov Regions are presented. An alien Chenopodium virgatum was discovered during the revision of the herbarium material. Corispermum filifolium , an endemic to the Lower Volga River basin (Astrakhan and Volgograd Regions), was collected for the first time in the Penza Region as an alien species. Oxybasis chenopodioides is a new native species in the Penza Region. The native species Caroxylon dendroides , Suaeda altissima , Suaeda linifolia , as well as an alien Limonium scoparium (Plumbaginaceae) were discovered in the Saratov Region . The authorship of Limonium scoparium has been corrected. Resulting from our field investigations in the Saratov Region in 2023, it was shown that Atriplex micrantha is more frequently distributed in the districts of Saratov Region located westwards of Volga River.