Compilation of the Checklist for Cultivars of Salix L. (Willow)

Abstract

The long history of Salix L. cultivation has resulted in selections of cultivars with superior technical and ornamental characteristics. Numerous cultivars have been developed and named over the centuries, but until now, no comprehensive compilation of these records has ever been made. With the expanding domestication of the genus Salix and the active selection of new cultivars, it is increasingly important that we have clear and standardized records documenting the cultivars. In 2013, the International Poplar Commission of the Food and Agriculture Organization (IPC FAO) was appointed as the International Cultivar Registration Authority (ICRA) for willows. The Checklist for Cultivars of Salix was compiled as the first step toward the promotion of a standardized registration process and the establishment of a Cultivar Register for Salix. Eight hundred and fifty four cultivar epithets with accompanying information have been included in the Checklist. The largest group of cultivars—more than 200—is represented by basket selections. This is followed by selections for ornamental plantings and biofuel production. The Checklist aims to promote the uniformity and accuracy of cultivar names of Salix, and provides a baseline for new registrations to ensure that each newly developed cultivar receives a unique, authoritative botanical name.