barbwire russian thistle

Kali paulsenii (Synonym Salsola paulsenii) is a species of flowering plant in the amaranth family known by the common name barbwire Russian thistle. It is native to Eurasia and it is present in the American southwest as an introduced species and sometimes a weed in sandy, disturbed habitat types. It is an annual herb forming a brambly clump of intricately branched, prostrate to erect stems growing up to a meter long. The reddish stems are lined...