Salix columbiana, the Columbia River willow, is a species of willow known only from the US states of Washington and Oregon. It grows on dunes, floodplains and riverbanks, many of these locales being located near the Columbia River.[2]

Salix columbiana is a shrub sometimes as tall as 6.5 m. It is similar to S. exigua but with longer stipes 0.2-0.7 mm long. It’s flowering period is from May to July.[2]

References

  1. ^ The Plant List Salix columbiana
  2. ^ a b Flora of North America vol 7 p 59.