5. Elegant decoration. I could have said "fashion statement," but with Stipa, you state that you wear whatever is beautiful, and inspire others to see beauty anew.
4. Healthy ankles and beyond. Stimulates circulation, exfoliates, draws attention to an often neglected part of the body, and may even stimulate some acupuncture points!
3. Botanical research. Back home, you can verify whether you were walking through stands of Stipa curtiseta, S. comata, or some of both. You could even analyse variability in awn length or sharpness, but you would have to consider possible collection bias.
2. Climate adaptation. If you remove the Stipa seed and drop it in a suitable site somewhat north of where you picked it up, you may be helping our beleaguered prairie vegetation to shift along with climatic zones.
And now, the ultimate good thing about wearing Stipa in your socks:
1. It feels so good when you stop.