Distribution: Distributed on both sides of the Cascades in Washington; Alaska south to central California, east to North Dakota and New Mexico.
Habitat: Moist to swampy areas and wet meadows, from the sea coast to foothill valleys.
Conservation Status: Not of concern
Usually glabrous perennial from a strong taproot, the stem usually single, erect, stout, unbranched below the inflorescence, reddish-tinged, 10-20 dm. tall.
Basal leaves several, with sheathing stipules and long petioles, the blade oblong-ovate or oblong-lanceolate, 10-30 cm. long, cordate at base; cauline leaves few, much reduced upward.
Inflorescence a large panicle, leafy-bracteate below, the branches ascending; pedicels slender, 2-3 times as long as the flowers; flowers perfect; outer 3 perianth segments 1.5-2 mm. long, not reflexed; inner 3 segments triangular to oval, 3-11 mm. long, truncate at base, entire or denticulate on the margins, strongly veiny; styles 3.
Achene about 4 mm. long, smooth.