May. 24, 2017

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Pricklypoppies are listed as a weed in some areas.  Cattle, and probably bison before them, avoid eating these sharp leaved plants.  Cattle, in more restricted grazing areas, can have a more concentrated effect.  Kind of like humans.  These plants increase in grazed areas.  It's also intersting to note that these plants have spread east along the I-80 corridor as far as Indiana.  Two examples of habitat change having the opposite effect of what we usually worry about.