Over the past 20 years, Forest Service scientists working on the Fernow Experimental Forest have been trying to understand the growing requirements of running buffalo clover - Trifolium stoloniferum - a member of the legume family, the only native white clover in the eastern United States, and a federally endangered species. However, on the Fernow Experimental Forest in West Virginia, which has a long history of forestry research practices, it is relatively abundant. Interestingly, when George Washington was surveying western Virginia (now West Virginia) over 200 years ago, he noted abundant white clover. Some think that running buffalo clover was formerly associated with the now-extirpated woodland bison. Anecdotal evidence suggests that both ground and canopy disturbance play an important role in creating the conditions needed by running buffalo clover. When these scientists analyzed over a half century of harvesting records from the experimental forest in conjunction with current running buffalo clover abundance and occurrence data, they found that the total number of forest harvest events since 1948 was the most important predictor of running buffalo clover presence or absence. Locations on the experimental forest with five or more disturbances since 1948 were much more likely to harbor running buffalo clover. When the disturbance interval stretched to 20 years, there was very little chance of supporting the clover.