• Knautia arvensis (L.) Coult.

    Scabiosa arvensis L.
    Dipsacaceae
    Udovica plava
    Bluebuttons
    Acker - Witwenblume

    Dužina/Lenght: 3,5 - 6,0 mm
    Širina/Width: 2,0 - 3,2 mm
    Debljina/Tickness: 1,0 - 2,0 mm