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Rain and Devil’s claw

The wash was wet and carven with channels from recent rains, and all the plants were responding: the brittlebush and the desert brooms were putting out fresh leaves, and the northern part of the wash was covered with these Devil’s claws. They will put out sharply curved pods, that will dry and split in two halves, giving a claw appearance.

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About Bill McCallum

I was born in Australia and came to the United States to pursue a Ph. D. in mathematics at Harvard University, met my wife, and never went back. I am a professor at the University of Arizona, working in number theory and mathematics education.


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