ARROW ARUM, PELTANDRA-VIRGINICA - A NATIONALLY RARE PLANT IN THE OTTAWA VALLEY REGION OF ONTARIO

Arrow Arum, Peltandra virginica (L.) Schott & Endl., a nationally rare plant, is reported in Lanark County, Ontario. This is the first occur rence of Arrow arum reported in the Ottawa Valley region and beyond th e climatically more moderate parts of southern Ontario. As such, it su ggests a more extensive range in the Canadian Shield region of souther n Ontario than previously suspected.