E-Flora BC: Electronic Atlas of the Flora of British Columbia

Salix richardsonii Hook.
Richardson's willow
Salicaceae (Willow family)

Introduction to Vascular Plants

© Virginia Skilton  Email the photographer   (Photo ID #81128)

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Distribution of Salix richardsonii
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Species Information

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General:
Dioecious shrubs 0.3-2.5 (-6.5) m tall, not colonial; branches erect, flexible at base; twigs red- to yellow-brown, sparsely to densely hairy.
Leaves:
Alternate, simple, elliptic to broadly elliptic or egg-shaped, 2-10 cm long, 1-5.5 cm wide, lower surface glaucous, smooth or sparsely long soft-hairy becoming nearly smooth, hairs white and rust-coloured, upper surface shiny, long soft-hairy to nearly smooth, margins entire or blunt-toothed, bases and tips pointed to rounded; leaf stalks without glandular dots at top; stipules leaflike.
Flowers:
Unisexual, lacking sepals and petals, borne in catkins which flower before leaves emerge, the catkins stout, unstalked; floral bracts dark, hairs straight; stamens 2; ovaries 1, smooth; styles 1.6-2.8 mm long.
Fruits:
Capsules which split open to release the seeds, each of which is surrounded by a tuft of hairs; stalks 0.4-1 mm long.
Notes:
Vegetative specimens of Salix richardsonii are sometimes difficult to distinguish from S. barclayi (see Table 3, page 60).

Source: The Illustrated Flora of British Columbia

USDA Species Characteristics

Flower Colour:
White
Blooming Period:
Early Summer
Fruit/Seed characteristics:
Colour: Green
Present over the Summer
Source:  The USDA

Habitat / Range

Moist to mesic thickets, streambanks, gravelly shores, rocky slopes, fens, meadows and open forests from the montane to alpine zones; frequent in N BC; amphiberingian, N to AK, YT and NT and disjunct to SK; E Asia.

Source: The Illustrated Flora of British Columbia

Ecology

Ecological Framework for Salix richardsonii

The table below shows the species-specific information calculated from
original data (BEC database) provided by the BC Ministry of Forests and Range.
(Updated August, 2013)

Site Information
Value / Class

Minimum

Average

Maximum

Elevation (metres) 55 1276 1798
Slope Gradient (%) 0 15 52
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
10 115 315
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
3 5 7
Modal Nutrient Regime
Class
D
Number of field plots
 species was recorded in:
27
Modal BEC Zone Class
SWB
All BEC Zones (# of stations/zone) species was recorded in: BAFA(3), BG(1), BWBS(2), CWH(1), ESSF(4), IDF(1), MS(1), SBS(2), SWB(10)

Climate

The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Synonyms and Alternate Names

Salix lanata
Salix lanata subsp. richardsonii (Hook.) Skvort.
Salix richardsonii var. mckeandii Polunin

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References