Ranunculus gmelinii (Small Yellow Water Crowfoot)
Ranunculus gmelinii and some Lemna minor under about 1/4 inch of ice in a shallow canal made by beavers. As the season continues with colder weather this canal will freeze to the bottom entrapping the plants. They will survive this intact and green ready to begin new growth in the spring.
''Ranunculus gmelinii'', Gmelin's buttercup or small yellow water-crowfoot, is a species of flowering plant in the buttercup family, Ranunculaceae. It is native to northern North America, where it occurs across Canada and the northern and higher-elevation regions of the United States. It is also present in Eurasia.
This species is a perennial herb growing prostrate stems on moist ground or floating stems in shallow water. It is hairy to hairless. The leaf blades are round or kidney-shaped.. more