Scientific Name: Cirsium horridulum Michx.

Caption: Pollen of Cirsium horridulum

Photographer: Steve Hurst @ USDA-NRCS PLANTS Database

Image Source: http://compositae.lifedesks.org/node/162

Notes: Pollen of Cirsium horridulum

Copyright: http://creativecommons.org/licenses/by-nc/3.0/

Do you see an error or have a comment about this image?
If so, send email to: ben@greentheorystudio.com