scientific name Silphium laciniatum   common name compass plant   soil type mesic   flowering time summer-autumn   traditional and folk remedies - roots used in medicinal drink to induce vomiting - treatment for arthritis - increases urine flow - treatment for dry and irritated skin - used in a strong tea as a laxative - increases milk flow in new mothers   traditional and folk uses - young leaves used in salads - deer use as food - bitter white sap