Keywords: glacier national park glaciernationalpark plants beargrass lily symbol bloom flower wildflower outdoor An unofficial symbol of Glacier National Park, beargrass blooms on an unpredictable cycle of 3-7 years. Photo: David Restivo, NPS An unofficial symbol of Glacier National Park, beargrass blooms on an unpredictable cycle of 3-7 years. Photo: David Restivo, NPS |