Andrews' gentian, bottle gentian, prairie closed gentian
[Dasystephana andrewsii (Griseb.) Small, more...]
Etymology: Gentiana: named after Gentius, King of Illyria, who around 500 B.C. found the roots of the herb yellow gentian or bitterwort to have a healing effect on his malaria-stricken troops
Plants: erect, perennial, 1'-3' tall forb, smooth, usually unbranched
Leaves: mostly stalkless, lance-shaped
Flowers: white to blue, 5-parted, 1 1/4" -1 3/4" long, top closed, folds between the petals; inflorescence a cluster, those from the top are stalked, those from the leaf axils often stalkless; blooms Aug.-Oct.
Habitat: full to partial sun; moderate moisture to wet; prairies, meadows, woods; in sandy, loamy soil
Conservation Status: Native
Floristic Rating: Coefficient of Conservatism = 6, Wetland Indicator = FACW Atlas of the Wisconsin Prairie and Savanna Flora: by T.S. Cochrane & H.H. Iltis: habitat, distribution infomation / flowering and fruiting times USDA Plants Database: Federal Distribution and detailed information including photos Illinois Wildflowers: Wonderful photographs; detailed descriptions; color and leaf arrangement key Southwest School of Botanical Medicine: Britton & Brown Illustrated Flora - 2nd Edition (1913) "An Illustrated Flora of the Northern United States and Canada"