Photo: Eryngium planum 05.

Blue flower with even bluer stalks. These were on the sunny side. Annala, Helsinki, Finland. Planted. 2004-08-22.

Eryngium planum L.
Engl.: blue eryngo, flat sea holly, plains eryngo.
Deu.: Flachblättriger Mannstreu.
Suom.: sinipiikkiputki, siniputki.
Sven.: rysk martorn, daggtorna