The Dragon Arum, Dragon Root or Green Dragon, is the native Arisaema Dracontium. The Dragon Plant of Europe is Drucmmalam vulgaris. The Dragon’s Head is not an Aroid, but a Dracocephalum, a genus of mints. False Dragon's Head is Physostegia. The Dragon's Blood of commerce is a dark red, astringent, resinous secretion of the fruits of a palm, Daemonorops Draco. Other kinds of Dragon's Blood are produced by Dracaena Draco and Ecastaphyllum Monetaria. "Sticks,” "reeds," “tears " and “lumps” of Dragon’s Blood are known to commerce. The resin is used in coloring varnishes, dyeing horn in imitation of tortoise shell, and in the composition of tooth-powders and various tinctures.