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Showy Lady’s Slipper
Rarer than either the pink or yellow varieties, there are estimated to be between 20 and 100 Showy Lady’s slippers in Maine.
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Spotted WintergreenSpotted Wintergreen grows in only 13 locations in the entire state, with fewer than 20 individual plants. Its southern Maine habitat has been reduced by de-velopment. In June white blooms on short stalks make it easier to spot.
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Slender Blue Flag Iris
Slender Blue Flag likes both salt and freshwater marshes, and costal meadows. Though threatened in Maine - fewer than 20 plants are known to grow here - the population of Slender Blue Flag is believed to be globally secure.