First report of Ambrosia tenuifolia in Romania
In total, to-date three Ambrosia species have been reported from Romania. Ambrosia artemisiifolia (Asteraceae: EPPO List of Invasive Alien Plants) was first reported between the years 1907 and 1912, in the Banat province, and it is now widespread throughout Romania. A. trifida (EPPO A2 List) was first recorded in Romania in 1976 in the city of Constanța (Dobrogea) and its distribution is currently limited to the south-eastern provinces (Dobrogea and Muntenia). A. psilostachya has been reported in Romania from the Danube Delta. In addition, several voucher specimens (University of Agronomical Sciences and Veterinary Medicine (UASVM), Bucharest) were collected from the villages of C. A. Rosetti and Sfiștofca. However, upon studying the voucher specimens, it was revealed that A. psilostachya has been erroneously reported from Romania, and the correct identity of this plant is A. tenuifolia. In Romania, A. tenuifolia occurs along roadsides and in ruderal sandy places in the village of C. A. Rosetti. A. tenuifolia is native to South America and it has been introduced to North America, South Africa and Australia. In the EPPO region it is present in France, Germany, Spain, Israel and Italy.
Sources
Karrer G, Sîrbu C, Oprea A, Doroftei M, Covaliov S, Georgescu M (2021) Ambrosia tenuifolia, instead of A. psilostachya, in Romania. Scientific Annals of the Danube Delta Institute 26, 17-26.