Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to Alberta, Montana, Wyoming, and Utah.
Habitat: Wet meadows in the mountains and foothills, but not in alkali.
Flowers: May-July
Origin: Native
Growth Duration: Perennial
Conservation Status: Not of concern
Pollination: Bumblebees, bees, butterflies, flies, beetles
Glabrous but scarcely glaucous, fibrous-rooted perennial from a short crown, 3-10 dm. tall, the stems solitary or more commonly clustered.
Somewhat succulent, sharply dentate, the basal and lowermost cauline ones petiolate, with elliptic or broadly oblanceolate blades 6-25 cm. long and 2-7 cm. wide; upper leaves few, strongly reduced, becoming sessile toward the upper stem.
Heads fairly numerous in a congested inflorescence; involucre 6-9 mm. high, the bracts often black-tipped; rays typically about 5, up to about 8 mm. long, frequently wanting.
PNW Herbaria: Specimen records of Senecio hydrophiloides in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Senecio hydrophiloides checklist entry
OregonFlora: Senecio hydrophiloides information
E-Flora BC: Senecio hydrophiloides atlas page
CalPhotos: Senecio hydrophiloides photos