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Notes Of Some Introduced Plants Of Iowa, L. H. Pammel
Notes Of Some Introduced Plants Of Iowa, L. H. Pammel
Proceedings of the Iowa Academy of Science
Since the settlement of Iowa many changes have taken place in our flora, especially with reference to introduced plants, and the disappearance of many indigenous species owing to breaking up of prairies, and the destruction of some timber areas, and the draining of ponds and lakes.