On the basis of herbarium specimens and documented observations, a taxonomic confusion around Allium filidens s.l. (including A. filidentiforme) in Kyrgyzstan is resolved. The species status of A. filidentiforme is confirmed, and this species is classified in A. subsect. Crystallina, comb. nov. In Central Asia, the A. filidens group (A. subsect. Filidentia) includes species with whitish perianth colours (A. filidens s.str., A. karakense, A. ugami) and greenish perianth colours (A. mogianense, A. valentinae). The occurrence of A. filidens s.str. in Kyrgyzstan is confirmed. Allium valentinae is reported as new to Kyrgyzstan. The nomenclature of A. filidens is clarified, and its neotype is designated. The complete distributions of A. filidens, A. filidentiforme, A. mogianense, A. ugami and A. valentinae are mapped.

The dataset is based on herbarium specimens and documented observations. Herbarium collections from Kyrgyzstan were examined at the Institute of Biology, Bishkek, Kyrgyzstan (FRU), Komarov Botanical Institute, St.-Petersburg, Russia (LE) and Moscow State University, Russia (MW). Specimens were examined de visu (FRU, LE) or online (MW). Herbarium data were complemented with documented observations. Distribution maps were compiled on the basis of specimens examined and documented observations; when specimens and observations were largely unavailable, the occurrence data were borrowed from reliable treatments (Wendelbo 1971). All records were georeferenced by the authors with the best precision available.

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