Above: Closed Gentian near agawa path in Madison, Wisconsin (9/12/18).
Closed Gentian - Gentiana andrewsii
Closed Gentian is a native flower that grows 1'-3' tall. Closed Gentian prefers full to partial sun; moderate moisture to wet; prairies, meadows and woods.
The blossoms are typically a rich blue color (sometimes white) and bottle shaped with closed mouths. The flowers are clustered at the top of the plant or in the axis of the top leaves.
Blooms August - October
Other names: Andrews' gentian, bottle gentian, prairie closed gentian.
For more information on the Closed Gentian, visit Wikipedia.
Or, visit the UW-Madison Wisconsin State Herbarium website page about Closed Gentian.
Above: Closed Gentian on bike path near Edgewood Avenue in Madison, Wisconsin on Septemeber 12, 2018.
Above: Closed Gentian in the UW Arboretum Curtis Prairie on September 14, 2022.
Above: Closed Gentian at the edge of the UW Arboretum Curtis Prairie on the side of a service road on September 28, 2022.
Above: Closed Gentian specimen collected in Yellowstone Lake State Park in Lafayette County on September 17, 1989.
Above: Closed Gentian botanical illustration circa 1879.
Above: Closed Gentian botanical illustration circa 1900.
Above: Closed Gentian botanical illustration by Alice Lounsberry circa 1899.
Above: 1924 Closed Gentian illustration by Mary Vaux Walcott. Smithsonian American Art Museum, Gift of the artist.
Above: 1905 Bottle Gentian (Gentiana saponaria) illustration by Mary Vaux Walcott.