Digitaria violascens Link, Hort. Berol.

Verloove, Filip & Ardenghi, Nicola M. G., 2015, New distributional records of non-native vascular plants in northern Italy, Natural History Sciences 2 (1), pp. 5-14 : 8

Digitaria violascens Link, Hort. Berol. [Link], 1: 229. 1827.

( Poaceae )

Naturalized neophyte new to the flora of the province of Alessandria (Piemonte) (Verloove et al., 2011).

ITALY. Piemonte. Prov. Alessandria: Valenza, river Po S of the bridge, sandy river bank, 07.09.2014, F. Verloove 11088 ( BR) .

A native from the Old World tropics Digitaria violascens has long been overlooked in southern Europe. Ver- loove (2008) cited records from France and Italy (prov. Novara in Piemonte), subsequently also from Spain (Ver- loove & Sánchez Gullón , 2008). Later , it turned out to be much more widespread in northwestern Italy ( Verloove et al., 2011). In Piemonte it was previously recorded in the provinces Biella , Torino , Verbano-Cusio-Ossola and Vercelli ( Verloove et al., 2011) and in September 2014 it was also seen along river Po near Valenza , apparently for the first time in the province of Alessandria .