Invasive cattail leaf rockets

 Invasive cattails, especially Narrow-leaved Cattail (Typha angustifolia)

 grow rapidly and crowd other plants species, and also provide poor habitat.  But they can make great leaf rockets.  Click on the image (right) or on this link: 
facebook.com/share/r/iM4tsnTwPHX9h9Ui/ 

to see the simple trick.