(1979) Inocybe salicis is an uncommon species of fungus found in association with willow in Europe.

However, the holotype was reexamined in 2009 by Ukka Vauras and Katri Kokkonen, who observed that the spores were in fact identical to those of I. salicis, which was described earlier, and so had precedence.

Within the genus Inocybe, I. salicis belongs to the section Marginatae, which also includes I. obtusiuscula, I. dunensis, I. salicis-herbaceae, I. substellata, I. praetervisa, I. saliceticola and I. mixtilis.

The gills are almost free, meaning that they only just connect to the stem, and are initially a pale grey, becoming an ochre-grey (or brownish) as they age.

The circumcystidia (cystidia on the margin of the cap) are club- or balloon-shaped, and caulocystidia can be found all the way down the stem.