Head (No ID)

Below is a series of photographs taken of a single flowering head in July and August 2008. This head belongs to an individual that is the offspring of a plant from a prairie remnant in western Minnesota. Note the abnormal head development; this is the result of infection with Aster Yellows.

Click on the thumbnail to see the full-sized image.



2 July

3 July

4 July

5 July

6 July

7 July

8 July

10 July

11 July

12 July

13 July

14 July

15 July

16 July

17 July

18 July

20 July

21 July

22 July

23 July


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