Jahn (2000) reported the presence of the species in Crete for the first time but classified it as Salix pedicellata Desf., a species with a wider Mediterranean distribution, as also mentioned by Bergmeier and Abrahamczyk (2008) and Strid (2016). Based on recent morphological studies from Cambria et al. (2019) the species was considered as new and was assigned its present name.

Salix kaptarae shows close relationships with species belonging to the S. apennina group (Cambria et al. 2019).

The species is listed as Critically Endangered under criterion D based on its small population size, recorded as only 10 individuals in two locations.

The species is endemic to western Crete and can be found in only two locations less than 10 km apart.

There are only 10 individuals left in the wild, nine individuals recorded at Lake Agia and one individual in Tsandiria (Cambria et al. 2019).

Salix kaptarae grows on wet soils along riverbanks and lake shores, usually on not flooded surfaces at an altitude of 40–300 m (Cambria et al. 2019).

Threats to the species relate to its habitat and include possible drainage of the lake or fluctuation of the water level due to anthropogenic factors, pollution of the lake and change of water quality and land use changes.

The species is protected by Law 3937/2011 as an endemic taxon. One of the two subpopulations of the species is located within the Natura 2000 area GR4340006 - LIMNI AGIAS - PLATANIAS - REMA KAI EKVOLI KERITI - KOILADA FASA.

Small forestry works and constructions are being implemented for the enhancement and protection of the species in Lake Agia and efforts are being made to preserve genetic material of the plant outside its natural environment (Botanical Gardens, Seed Banks) within the framework of the research program: "Development of methodology for the strengthening and protection of populations of threatened plant species of Crete - Pilot application in the Prefecture of Chania".