Silver Poppy is a relatively well-known magical weed that also goes by the name "dream eater" within Zebra lands and has been outlawed in some areas of the eastern dusts due to its use as a fairly addictive hallucinogen.
The Silver Poppy can be found typically in places ripe with imagination, such as theaters and schoolyards. It does not require sunlight... just a little water, soil and fantasies. This can make it difficult to find an infestation of it. It is a stout plant with a bulb at its top. The energy it absorbs is collected in this pod, which it uses to feed flowers that give way to more pods on its sides, which break off to spread the plant. If it's in an area that has little fantasy in it (or one that's sufficiently tapped), the sprout pods are very light and can be blown about by the wind. When it hits a rich vein of it the pods get heavier and root down.
Silver Poppy absorbs fantasies, dreams and imagination, robbing those around it of their ability to believe in the impossible. Several next to a sleeping zebra can prevent dreams. Dozens around a schoolyard can discourage play. Thousands can all but shut down a theater. It’s difficult for it to reach these levels without being noticed and disposed of, however. Burning it, however, has the effect of releasing its energy into anyone that bonds with it, and its existence as a plant that connects the physical world with the dream realm creates a connection that can be exploited for the sake of a kind of illusory magic. When mature plants are ground up and burned it creates a substance called “story ash”, which can either be immediately manipulated as part of the smoke produced by the burning or captured and saved for a future time. The recipe only calls for an infusion of the life force of the person that intends to manipulate the ash. Anything will do... breathe, blood or hair, for example. Silver poppy has a natural very light, silvery-green color to its smoke, nearly as light as water vapor. It needs to be mixed with other material that burns darker to be particularly visible. It is popular, but not necessary, to use different natural dyes to create unnatural-looking green or red hues to the images. Others might simply burn it with leaves or nettles to make the smoke dark. The resulting ash can then either captured for use at some later date, or directly crafted into images in the process of the burning. The burning and infusion of life creates a connection between the person and the power stored in the poppy. This results in a slight hypnotic effect, encouraging those that breathe its vapors to believe in the illusion. Anyone not breathing its full amount directly into their lungs might have cause to suspend logic for a short time to allow themselves to get wrapped up any fantasy the person controlling the ash tells. It makes fantasies seem real, though for no one so great as the teller, who may temporarily find themselves believing (to a degree, as the drug is not particularly strong without large volumes and/or considerable refinement) everything they say by simple merit of the fact that they say it. A fairly dangerous state of mind, to be sure, but one that clears not long after one stops smoking the drug. It should also be noted that the smoke can mix and take control of any other smoke it contacts, allowing the person using it to do things as dramatic as set up bonfires, mixing in only a little ash and then constructing great scenes out of the rest of the smoke in the sky.
Silver Poppy is, again, illegal due to its corruptive nature within zebra lands and some eastern dust towns (although not always prosecuted if not heavily abused, since there are greater concerns than recreational abuse of a weed), the drug has not yet reached widespread recognition within pony ones. Its effect of consuming fantasies is mostly just considered a nuisance as it takes several to have a noticeable effect on a single zebra, let alone a group, and there are no lasting effect once one gets far-enough away from an infestation. Lastly, it is the only known means to the zebra of performing typhokinesis through alchemy.