Porcupines in the prairie? When it comes to prairies, I am of course speaking about the Porcupine Grass (Stipa spartea).
The seed from this grass is one of my favorites because it is so unique–looking compared to other seeds I have seen. The tip of this seed is rather furry and comes to a very sharp point, like a porcupine quill. Even though I was careful while planting these seeds, I still bled from pricking my fingers with the sharp tips.
To plant the porcupine grass I actually jabbed the seed downward, burying the pointed tip into the ground. I would squat to the ground (to get a work–out while I planted!!) and then sink five seeds into the ground in a circle around me. Then I would stand up and toss out another five seeds to self–plant and then I would walk eight to ten feet and repeat the whole process again. As you can imagine, this planting process is very labor–intensive.
The seed tails are very fascinating. There are two different colored strands that twist around each other, looking rather candy cane–like to me. Apparently these two strands twist at different rates depending on the humidity in the air. So, when the air is dry, the tapered tail end will coil and fishtail to one side or the other and then when there is more moisture in the air the tail will fishtail the other way. Over time, the humidity changes will allow this seed to literally screw itself down into the ground. It is pretty amazing how nature works!