Family: Hypericaceae
round-fruited St. John's-wort, round-seeded St. John's-wort
[Hypericum sphaerocarpum var. turgidum Michx., more...]
Rob Baller
Wisconsin Dept. of Natural Resources
Etymology: Hypericum: ancient Greek name derived from hyper, "above," and eikon, "picture," from old practice of placing flowers above an image in the house to ward off evil spirits at the midsummer festival of Walpurgisnacht, which later became feast of St. John
Plants: erect, perennial, 12"-28" tall forb; stems clustered, somewhat woody toward the bottom
Leaves: linear to oblong, tapering toward the stem
Flowers: yellow, 5-parted, 1/3" -3/4" wide; inflorescence a compact, many-branched cluster (cyme) of stalked flowers; blooms June-Aug.
Fruits: round to oval capsule with 1 chamber
Habitat: dry; upland, woods, prairies, barrens
Conservation Status: Threatened
Plants: erect, perennial, 12"-28" tall forb; stems clustered, somewhat woody toward the bottom
Leaves: linear to oblong, tapering toward the stem
Flowers: yellow, 5-parted, 1/3" -3/4" wide; inflorescence a compact, many-branched cluster (cyme) of stalked flowers; blooms June-Aug.
Fruits: round to oval capsule with 1 chamber
Habitat: dry; upland, woods, prairies, barrens
Conservation Status: Threatened
Floristic Rating: Coefficient of Conservatism = 7, Wetland Indicator = FACU WIS DNR-Bureau of Endangered Resources: Detailed information on Wisconsin listed species including state and federal status, photos, etc. 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
Wisconsin Dept. of Natural Resources
Rob Baller