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Echinacea pallida (Nutt.) Nutt. (pale purple coneflower), habitat
July 15 1983
Armstrong, Patricia K.
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Parthenium integrifolium L. (wild quinine) and Echinacea pallida (Nutt.) Nutt. (pale purple coneflower), habitatJuly 12 1983
Armstrong, Patricia K.
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Sporobolus heterolepis (A. Gray) A. Gray (prairie dropseed), leaves
October 10 1983
Armstrong, Patricia K.
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Desmodium illinoense A.Gray (Illinois ticktrefoil), loments on clothing and shoesAugust 1983
Armstrong, Patricia K.