Common Tansy | Tanacetum vulgare Up at Paradise Meadows today I had the (unfortunate?) opportunity to photograph some common tansy (Tanacetum vulgare) growing along the roadside. Common tansy is an invasive perennial that grows in disturbed places, road edges and stream banks. WeedsBC reports that the common tansy is problematic especially in areas like interior BC so it was disconcerting …