An indicator to measure plant conservation shows a wide range of wild plants used for food, medicine, shelter, fuel, livestock forage and other valuable purposes are at risk. These include wild populations of firs used for Christmas trees, the original types of kitchen-cupboard staples like vanilla, chamomile, cacao and cinnamon, wild relatives of crops like coffee, and non-cultivated plants used by bees to make honey. from Latest Science News -- ScienceDaily https://ift.tt/2S4gR45