. "Magnoliophyta" . "G. Forst." . "Hypericum" . . . . . . "Hypericum gramineum G. Forst." . . . "Malpighiales" . . . . "Hypericum gramineum" . . "Magnoliopsida" . "Hypericaceae" . "Grassy St. Johnswort" . "Plantae" .