An alvar is a biological environment based on a limestone plain with thin or no soil and, as a result, sparse grassland vegetation. Often flooded in the spring, and affected by drought in midsummer, a

Tetraneuris herbacea is a rare species of flowering plant in the aster family known by the common names eastern fournerved daisy, lakeside daisy, fournerved starflower, and Manitoulin gold. It is nati