A relict view with a torn range . Places of growth - Europe , the Caucasus , Asia Minor , Iran , Tibet , Siberia [2] [3] . It grows along the banks of rivers and streams, in flowing swamps, in alder forests.
Botanical illustration of Jacob Sturm from the book
Deutschlands Flora in Abbildungen , 1796
Perennial herbaceous plant with a height of 50 to 100 cm.
The stems are erect, tetrahedral, their faces and petioles of leaves are membranous-carinated, glabrous. Leaf blades are oblong-ovate, from 4 to 9 cm long and from 1.5 to 5 cm wide, obtuse or shortly pointed, with a rounded, less often slightly heart-shaped base, sawt-like or town-like, dentate, bare along the edge.
Flowers in dychasia , combined into long loose racemose inflorescences . Cross-pollinated plant.
Flowering in June - August, ripening in July - September.
It is included in the Red Books of the following constituent entities of the Russian Federation: Vladimir Region, Ivanovo Region, Kaluga Region, Kemerovo Region, Lipetsk Region, Republic of Mordovia, Moscow Region, Novosibirsk Region, Ryazan Region, Samara Region, Saratov Region, Smolensk Region, Republic of Tatarstan, Tomsk Region , Republic of Khakassia, Chuvash Republic. In Ukraine, it is included in the Red Book of Sevastopol [4] .
