# Pacific Waterleaf (*hydrophyllum tenuipes*)

Pacific Waterleaf (Hydrophyllum tenuipes) is a lush, shade-loving perennial herb native to the moist, deciduous forests of the Pacific Northwest. Characterized by its large, deeply lobed leaves and delicate clusters of bell-shaped flowers, this plant serves as a vital component of the forest understory. It thrives in rich, damp soils, often spreading via underground rhizomes to form extensive, vibrant green carpets that stabilize the forest floor and provide shelter for various microfauna. During spring and early summer, its distinctive flowers emerge with prominent, thread-like stamens that give the blooms a fuzzy appearance. Historically used by Indigenous peoples as a food source, the tender young shoots and roots were cooked and consumed.

- **Category:** [Plants](https://www.snappit.app/explore/categories/plant)
- **Rarity:** Common
- **Danger:** 1/5 · Very low
- **Snaps:** 2
- **Habitat:** Found in moist, shaded forests, damp woodlands, and riparian zones, typically in nutrient-rich soils at low to middle elevations.

![Pacific Waterleaf](https://inaturalist-open-data.s3.amazonaws.com/photos/641237714/medium.jpg)

Photo: Conquest, CC BY 4.0 · [iNaturalist](https://www.inaturalist.org/photos/641237714)

## Appearance

This species features large, alternate leaves that are deeply divided into 7 to 9 sharply-toothed, palmately lobed segments with a rough, hairy texture. The plant grows to heights between 20 and 80 cm, forming dense mounds of soft foliage. Its flowers are clustered in coiled, cyme-like inflorescences and are usually greenish-white, lavender, or cream-colored. Each bell-shaped flower is about 5 to 7 mm long, notably characterized by long, protruding stamens that extend far past the petals, creating a delicate, whiskered look.

## Taxonomy

- **Kingdom:** Plantae
- **Phylum:** Tracheophyta
- **Class:** Magnoliopsida
- **Order:** Boraginales
- **Family:** Boraginaceae
- **Genus:** Hydrophyllum

## Interesting facts

- Indigenous peoples of the Pacific Northwest historically cooked the sweet, fleshy roots of this plant as a nutritious food source.
- Its fuzzy-looking flowers are highly attractive to native long-tongued bees, making it an excellent addition to shade-friendly pollinator gardens.
- The genus name 'Hydrophyllum' translates directly to 'water-leaf,' describing the watery appearance or saturated sap found in the leaves.

## Special abilities

- **Rhizomatous Colonization:** Utilizes creeping underground rhizomes to rapidly colonize forest understories and secure soil on sloped terrain.
- **Exserted Stamens:** Features exceptionally long stamens that brush pollen onto visiting bumblebees and flies with maximum efficiency.
- **Moisture Adaptation:** Thrives in heavily water-saturated soils, utilizing specialized root structures to resist anaerobic stress.

## Measurements & details

- **Length:** 20+ cm
- **Lifespan:** 3+ years

## Diet & Feeding

As a photosynthetic plant, Pacific Waterleaf produces its own organic nutrients using sunlight, water, carbon dioxide, and essential soil minerals.

- **Primary Foods:** Sunlight, Water, Carbon Dioxide, Soil Nutrients

## Ecological connections

- **Mutualism:** [Yellow-faced Bumble Bee](https://www.snappit.app/explore/yellow-faced-bumble-bee) (*Bombus vosnesenskii*) — Visits the flowers for nectar and pollen, acting as a primary pollinator.
- **Eaten by:** [Mule Deer](https://www.snappit.app/explore/mule-deer) (*Odocoileus hemionus*) — Forages on the tender spring foliage during early growth phases.
- **Eaten by:** [Pacific Banana Slug](https://www.snappit.app/explore/pacific-banana-slug) (*Ariolimax columbianus*) — Consumes the low-lying, moist leaves in shaded understory habitats.

## Safety

**Danger:** 1/5 · Very low

No special safety notes yet.

## Frequently Asked Questions

### How to identify Pacific Waterleaf?

Start with the whole plant, then compare leaf arrangement, leaf edges, stems and any flowers or fruit. Opposite leaves grow in pairs; alternate leaves come one at a time along the stem. These details tell you far more together than a single green leaf does. Plant Identifier: upload a photo and compare the visible details.

### How long is Pacific Waterleaf?

20+ cm

### How long does Pacific Waterleaf live?

3+ years

### What does Pacific Waterleaf eat?

As a photosynthetic plant, Pacific Waterleaf produces its own organic nutrients using sunlight, water, carbon dioxide, and essential soil minerals.

### Where is Pacific Waterleaf usually found?

Found in moist, shaded forests, damp woodlands, and riparian zones, typically in nutrient-rich soils at low to middle elevations.

## Where to spot

- [E. E. Wilson Wildlife Area](https://www.snappit.app/guides/places/e-e-wilson-wildlife-area) — Oregon, US · Nature Reserve
- [Regional Parks Botanic Garden](https://www.snappit.app/guides/places/regional-parks-botanic-garden) — California, US · Botanical Garden
- [Glines Canyon Dam](https://www.snappit.app/guides/places/glines-canyon-dam) — Washington, US · Historic Site
- [Leach Botanical Garden](https://www.snappit.app/guides/places/leach-botanical-garden) — Oregon, US · Botanical Garden
- [Peavy Arboretum](https://www.snappit.app/guides/places/peavy-arboretum) — Oregon, US · Botanical Garden

[View all places to see Pacific Waterleaf](https://www.snappit.app/guides/where-to-see/pacific-waterleaf)

## More Plants

- [white snakeroot](https://www.snappit.app/explore/white-snakeroot) (*Ageratina altissima*)
- [tree-of-heaven](https://www.snappit.app/explore/tree-of-heaven) (*Ailanthus altissima*)
- [western sword fern](https://www.snappit.app/explore/western-sword-fern) (*Polystichum munitum*)
- [common milkweed](https://www.snappit.app/explore/common-milkweed) (*Asclepias syriaca*)

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Source: [Pacific Waterleaf: Facts & Places to See — Snappit](https://www.snappit.app/explore/pacific-waterleaf)
