Alchemical Component (wind), common (forest, plains)
A medium-size white flower with 7 petals atop a thin, green, but slightly woody stem. When fed to horses, allows them to run at +15 movement speed for 48 hours straight. After that the horse must rest for double the amount of time. If not rested, make a DC 15 Constitution Save every hour after the original 48 hours to see if the horse dies of exhaustion.