Larsen's mountain trumpet beginning to bloom on a gravel bar in the middle of the South Fork Conrad Creek upstream of where an old pack trail (which heads north to the North Fork Conrad Creek and Devils Horns) crosses the creek, Goat Rocks Wilderness.......July 23, 2016.
Basal leaves of Larsen's collomia as seen in rocky meadows at the eastern base of the Goat Rocks massif and about a quarter mile uphill from the South Fork Conrad Creek, Goat Rocks Wilderness.........July 22, 2016.
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Larsen's collomia observed on cindery scree slopes at about 7100' along the Climber's Trail near the head of Hellroaring Valley, Yakama Nation lands at Bird Creek Meadows......August 10, 2023.
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Basal leaves of Larsen's collomia observed on the 2006 mudflower along the Blue Horse Loop Trail #237 uphill to the east of Blue Lake, Mount Saint Helens National Volcanic Monument.....August 17, 2021.