Photo: Equisetum palustre 0.

Green shoots with their sporeheads still attached. Liljendal, Finland. Wild. 1996-05-01.

Equisetum palustre L.
Engl.: marsh horsetail.
Deu.: Sumpf-Schachtelhalm.
Suom.: suokorte.
Sven.: kärrfräken