POLLEN ANALYSIS OF SAMPLES FROM THE CHEYENNE RIVER, SOUTH DAKOTA

Summary

Single pollen samples from ten cores from the Cheyenne River area in South Dakota were

examined in search of evidence that might indicate that these sediments accumulated during the

historic era. Pollen evidence for the historic era includes pollen from plants known to have been

introduced into the western United States during the historic era and are not native to this area.

Examples include common weeds such as Erodium cicutarium (cranesbill), Cirsium (Russian

thistle), Trifolium repens-type (white clover), Trifolium pratense-type (red clover), and Elaeagnus

(Russian olive).

This Resource is Part of the Following Collections

• PaleoResearch Institute

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