Amsinckia menziesii (Lehm.) Nels. & Macbr., a species occurring in western North America on moist slopes and fields, open valley floors and hillsides, has been found very rarely in 5 places of our country (Gorinchem 1913, Renesse 1952 and 1958, Wageningen 1963, Blauwkapel 1963, Rockanje 1963). In an oats crop naar Venray and Broekhuizen it was found again and collected in 1964. The ecology of this species seems to be the same as that of Lycopsis arvensis L. subsp. arvensis.