''Alcea rugosa'', the Russian hollyhock, is a species of flowering plant in the family
Malvaceae
Malvaceae, or the mallows, is a family of flowering plants estimated to contain 244 genera with 4225 known species. Well-known members of economic importance include okra, cotton, cacao and durian. There are also some genera containing familiar ...
. It is native to Ukraine, Crimea, south European Russia, and the Caucasus, and has been introduced as a garden escapee into Wisconsin and Maryland in the United States.
It is resistant to ''
Puccinia malvacearum'' rust, and hardy to
USDA zone 4.
References
rugosa
Flora of Ukraine
Flora of the Crimean Peninsula
Flora of South European Russia
Flora of the Caucasus
Plants described in 1862
{{Malveae-stub