Sulphur Cinquefoil (Potentilla recta)
This wildflower (or weed, depending on who you're talking to) with five pale-yellow, heart-shaped petals is a relative newcomer to Ontario. It was first officially sighted here in 1897. Each blossom opens in the morning and sheds its petals by late afternoon. But hey! The next morning new blossoms open!
Here in Ontario, sulphur cinquefoil blooms in fields and waste places from June through August. I don't grow these in my gardens. I think they are pretty but also invasive.
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