Please click on this link for a look

at how a plant was transported

 into Arizona by humans, used by

them, and how its very presence

 is a growing symbol of the

interaction of humans and the environment.

https://prescott.digication.com

/readfile.digi?localfile=9%2Ff%2F

c%2FM9fc9e52ca475e436e53eeb

8069ab23c0&filename=Rucker+J

.+Wolfberry+2010.doc