Arrowleaf Butterweed, Arrowleaf Groundsel, Arrowleaf Ragwort
Senecio triangularis var. triangularis
Synonyms: Senecio triangularis, Senecio triangularis var. angustifolius
This photo shows the nearly flat-topped inflorescence of arrowleaf groundsel as seen in a moist meadow at Patterson Mountain in the southern Willamette National Forest..........July 13, 2008.
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Arrowleaf groundsel as seen at left in a moist meadow at the trailhead for Lookout Mountain, Badger Creek Wilderness..........July 17, 2016. The photo at right shows a close-up of the inflorescence of arrowleaf groundsel as seen along the East Crater Trail in the Indian Heaven Wilderness........August 25, 2017.
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Arrowleaf groundsel as seen in a moist meadow at Patterson Mountain in the southern Willamette National Forest........July 13, 2008.
Arrowleaf groundsel as seen in a moist meadow along Forest Road #39 near Bottles Springs, Okanogan-Wenatchee National Forest.........July 29, 2018.
Paul Slichter