A NEW NATIVE PLANT FOR PENNSYLVANIA, EQUISETUM SCIRPOIDES MICHX. (EQUISETACEAE)

摘要

Acting on a tip from biology professor Mike Campbell (Mercyhurst College, Erie, PA), we surveyed an interesting wetland complex located east of Girard Borough in Erie County, Pennsylvania, on August 14, 2009. This wetland was identified as an Alder-leaved Buckthorn-Golden Ragwort-Sedge Shrub Fen, an imperiled (S2) natural community type in Pennsylvania (Podniesinski 2011). Six plant species of conservation concern were present at the site, most notably a population of Equisetum scirpoides Michx., documented for the first time in Pennsylvania. Vouchers for the population were deposited in the Carnegie Museum of Natural History [14 August 2009, P. Woods F09WOO58-01 (cm)] and the Cleveland Museum of Natural History [14 August 2009, P. Woods F09WOO58-02 (clm)].