A few major studies have found a link between this cancer and talc, but none have proven causation. Also, these studies haven't shown a link between just how much talc is used and how it affects the risk of ovarian cancer. This just makes things more confusing.
Rush, any of several flowering plants distinguished by cylindrical stalks or hollow, stemlike leaves. They are found in temperate regions and particularly in moist or shady locations. The rush family (Juncaceae) includes Juncus, the common rushes, and Luzula, the woodrushes. Common rushes are used in many parts of the world for weaving into chair bottoms, mats, and basketwork, and the pith serves as wicks in open oil lamps and for tallow candles (rushlights).
Green Grow the Rushes, O (alternatively Ho or Oh) (also known as The Twelve Prophets, The Carol of the Twelve Numbers, The Teaching Song, The Dilly Song, or The Ten Commandments), is an English folk song ( Roud #133) popular across the English-speaking world.