The Willow family or Salicaceae and their uses. Part 1: The Willows or Salix spp.

The Salicaceae or Willow family is now a much larger family.

It just used to include the willows, poplar, aspen, and cottonwoods.

Pollarded Willows (Salix alba) in a very Dutch Landscape (MS)

Genetic studies summarized by the Angiosperm Phylogeny Group (APG) have greatly expanded the circumscription of the family to contain 56 genera and about 1220 species, including the Scyphostegiaceae and many of the former Flacourtiaceae.

BUT; fortunately for us, in the British Isles it  has only two main genera, namely the Poplar and the Willow. Although the flowers (as always in traditional classification) determine the ultimate genus and whether it is a Willow or Poplar, most of us can easily tell the difference from the leaves. All the Poplars have a triangular, broad oval, to heart-shape outline with often a long leaf stem (petiole) whilst most of the Willows have long, narrow leaves or roundish, much smaller leaves than Poplars.

When there are no leaves in winter the tree could be identified by the winter buds, where Willows just have one outer scale and the Poplar has several. Here you can find the post all about the poplars.

Pictures by Matt Summers and Mike Poulton unless stated. The links provided on the scientific and common plant names provide more detailed information as well as good pictures on each species. Also special thanks to PFAF which provides a wonderful plant database of not just native plants but any useful plants all over the world.

There are links on the Scientific name from the Plant Atlas Online and I also copied the general ecological information from them. Wikipedia or other websites provide more information about the uses, etc. FBBC added in the Contents behind name if this willow occurs in the Birmingham and Black Country area and Flora.

Contents

Classification of the Willows

Section 1: SALIX

Section 2: VETRIX

Section 3: CHAMAETIA

General information about the Willows

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