The wonders of spring are only a few months away. That includes the elegant Western trillium, which often changes from white to pink or purple as it ages. Trillium can take years to produce its gorgeous flower, and picking it robs the plant of the food supply necessary for next year’s growth, according to Oregon State University. This photo was captured in early April at Tualatin River National Wildlife Refuge, an urban refuge just west of Portland. USFWS photo: Jake Bonello