Sansevieria (Snake Plant) Tipton & Hurst Common Name: Cornflower or knapweed, Genus: Centaurea, Species: cyanus, Found in: The rolling green hills of Germany, Color: intense or bright blue and many other shades of blue., Number of petals: These Stunning Hanging Plants Are a Snap to Make Ornamental Pepper Seed Black Pearl True Leaf Market Katherine Denby Assumes Role as Editor in Chief for The Plant Journal The Society for Experimental Biology (SEB)