Page author: David Giblin
Hydrophyllum fendleri
Fendler's waterleaf

Distribution: Widely distributed throughout much of Washington; British Columbia south to California, east to Utah.

Habitat: Thickets and moist open places, from lowlands to mid elevations in mountains.

Flowers: May-August

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern


Herbaceous perennial from a short, stout rhizome and fibrous roots, the solitary stems 2-8 dm. tall.


Leaves few, long-petiolate, alternate, large, the blades up to 2.5 dm. long and 1.5 dm. wide, pinnatifid into 7-11 sessile leaflets, crowded toward the top, spaced lower down; leaflets pointed and sharply toothed, with 4-8 teeth to a side, hairy on both sides.


Flowers in many-flowered, somewhat loose clusters, usually surpassing the leaves; calyx lobes 5, 3-6 mm. long with long hairs on the margins; corolla 6-10 mm. long, dull white to lavender; stamens 5, the filaments exerted, attached near the bottom of the corolla tube, each flanked by a pair of linear appendages; style exerted, 2-cleft.


Fruit a capsule.

Accepted Name:
Hydrophyllum fendleri (A. Gray) A. Heller

Synonyms & Misapplications:
(none provided)
var. albifrons – Fendler's waterleaf    Olympic and Cascade Mountains, and Palouse-Blue Mountain regions of Washington; south to Oregon and east to Idaho.
var. fendleri – Fendler's waterleaf
Additional Resources:

PNW Herbaria: Specimen records of Hydrophyllum fendleri in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Hydrophyllum fendleri checklist entry.

E-Flora BC: Hydrophyllum fendleri atlas page.

CalPhotos: Hydrophyllum fendleri photos.

USDA Plants: Hydrophyllum fendleri information.

45 photographs:
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