Greece (North-East Greece present)
Alien / Established
Freshwater habitats, Agricultural and Ruderal habitats
Presidential Decree 67/81
A xenophyte originating from Mexico to S America, now a well-established weed in rice fields and rotating maize fields along the Strymonas river. According to local growers, inadvertently introduced from c. 2000 onwards, possibly as a contaminant of crop seed. Actually not known to occur elsewhere in the Euro+Med area.