Home > Landscaping > Native Plants for Western Washington Gardens and Restoration Projects
Epilobium watsonii
Watson's Willowherb
At a Glance: Erect herbaceous perennial with opposite leaves.
Height: Up to 5 feet (150 cm).
Growth Form: Herb.
Stems: Round to slightly square, coarse, reddish when young.
Leaves: Opposite, lance shaped to oval or elliptic, pointed, minutely toothed, short-stalked or stalkless, crowded or overlapping to remotely spaced; size: 1-15 cm (.4-6 in) long; color: green.
Flowers: White pink or rose purple, small; few to numerous in erect, leafy-bracted clusters atop stem. Primary color: white to pink to purple.
Flowering Period: May, June.
Fruits: Pod-like capsules 3-10 cm (1-4 in) long, hairy; seeds rough and hairy, flying on cottony wisps of hair, seeds tiny <1 mm; shape: long narrow cylinders; size: 3-10 cm (1-4 in) long; color: green/pink.
|
|
 full sun > 80% mostly sunny 60%-80% partial sun and shade 40%- 60%  mostly shady 60%-80% full shade > 80%
|
wet moist dry
Wetland Indicator Status:
FACW (facultative wetland) |
low elevation mid elevation sub-alpine high elevation
|
Aquatic and Wetland:
Ponds or lakes Shallow pools Sloughs Swales or wet ditches Seasonally inundated areas Marshes or swamps Aquatic bed wetlands Emergent wetlands Scrub-shrub wetlands Forested wetlands Bogs, fens Seeps, springs
Lake shores Bog margins Streams or rivers Stream or river banks Riparian corridors River bars Floodplains Bottomlands Alluvial areas |
Saltwater Areas:
In or near saltwater Mud flats Tidal areas Estuaries Saltmarshes Brackish water Seashores Coastal dunes or beaches
Coastal bluffs Cliffs Rocky slopes Outcrops Crevices Glacial outwash Gullies Slide areas
Heaths Snow beds Tundra Avalanche tracks |
Forests and Thickets:
Forests and woods Open forests Coniferous forests Old growth forests Deciduous forests Mixed forests Nurse logs Forest edges, openings, or clearings Thickets
Pastures or fields Meadows or grassy areas Mossy areas
Roadsides Trailsides Logged sites Burned areas Disturbed sites |
Suggested References
- Cooke, S.S. A Field Guide to the Common Wetland Plants of Western Washington and Northwetern Oregon. Seattle Audubon Society and Washington Native Plant Society. Page 112.
- Guard, B.J. 1995. Wetland Plants of Oregon & Washington. Lone Pine Publishing. Page 175.
- Hickman, J.C., ed. 1993. The Jepson Manual: Higher Plants of California. University of California Press. Page 796.
- Hitchcock, C.L., A. Cronquist. 1973. Vascular Plants of the Pacific Northwest. University of Washington Press. Page 307.
- Pojar, J., A. Mackinnon. 1994. Plants of the Pacific Northwest Coast. Lone Pine Publishing. Page 207.
The landscaping and restoration information provided on this page is taken from the Starflower Foundation Image Herbarium. All photographs © Starflower Foundation unless otherwise noted.
