Salix scouleriana

Salix scouleriana

Salix scouleriana Barratt ex Hook.
Engl.: Scouler's willow.
Bot. syn.: Salix brachystachys Benth., Salix flavescens Nutt., Salix nuttallii Sarg.

I have no articles for this botanical term, but there might be some for the next level down (if found).