Notes on the Taxonomy of (Salicaceae).

L., or golden willow, was described by C. Linnaeus in 1753. It was later considered to be affiliated with , and its taxonomic rank has been changed to variety, subspecies, and form. A recent proposal designated it as a form of × . The goal of this study was to verify the taxonomic designation of using morphological characteristics including ovule number. A few specimens of from Europe and North America, including the lectotype LINN1158.13, were analyzed. It was recorded that has an ovule index of 6-10, with most valves with four and five ovules and less than 50% of valves with five ovules. These ovule parameters were similar to those of . The other floral characteristics also indicated that is associated with . No signs of androgyny or flower aberrations, commonly occurring in willow hybrids, were found in the specimens of . Thus, the analyses did not corroborate the hybrid origin of . The ovule analysis also confirmed that f. with orange-red stems is also a taxon of , which differs from f. by a greater ovule index of 12-16.