Galanthus Spanish and French Pyrenees in the west through to the Caucasus and Iran in the east, and south to Sicily, the Peloponnese and the Aegean, Turkey, Lebanon and Syria. The northern limit is uncertain because "G. nivalis" has been widely introduced and cultivated throughout Europe. "G. nivalis" and some other species valued as ornamentals have become widely naturalized in Europe, North America and other regions. "Galanthus nivalis" is the best-known and most widespread representative of the genus "Galanthus". It is native to a large area of Europe, stretching from the Pyrenees in the west, through France and Germany to Poland
Chlamydomonas nivalis have been found on the surface of "C. nivalis" cysts. The unknown bacteria were not detected in control samples that did not contain "C. nivalis" which strongly suggests that it must be associated with the algae. Another bacterium, "Mesorhizobium loti", was found as contamination in a "C. nivalis" culture, but further testing suggested that this bacteria may be synthesizing vitamin B12 for the algae. In cryoconite holes "C. nivalis" can be found among bacteria, virus-like particles, ciliates, and Chlorophyte species. Ice worms have also been found to live preferentially under "C. nivalis" in glaciers, possibly using the algae as a