Salix aurita x repens = S.... herbariaunited.org

Angiosperm families -... www.delta-intkey.com

Angiosperm families -... www.delta-intkey.com

plants-16483 - salix... artscult.com.au

Salix nigra (Black Willow) www.gardenia.net

Salix nigra (Black Willow) www.gardenia.net

Stachys x ambigua For sale... www.mediastorehouse.com

1. Little Tree Willow,... antiqueprintmaproom.com

Salix - Wikispecies species.wikimedia.org

Salix nigra - Species Page... florida.plantatlas.usf.edu

Salix nigra (Black willow) www.florafinder.org

Salix nigra (black willow)... www.izelplants.com

Salix purpurea L. -... luirig.altervista.org

Willow Tree Stock... www.istockphoto.com

Salix × ambigua Ehrh. |... powo.science.kew.org

2013 BONAP North American... bonap.net

Richard's Garden Center/... richardsgardencenter.com

Flora of Cornwall text for... www.cornishbiodiversitynetw...

Robinia x ambigua Casque... jftnurseries.com.au

Salix cinerea - Wikispecies... species.wikimedia.org