Sommers, John, 1844-Nova Scotian Institute of Natural Science2008-12-192008-12-191877Sommers, J. (1877). Notes on Nova Scotia Compositae, asters. Proceedings and Transactions of the Nova Scotian Institute of Natural Science, 4(3), 239-245.http://hdl.handle.net/10222/11432Read on November 13, 1876.plantsEastern CanadaAster laevisLinn laevigatusText