This French endemic has not been seen since 1927 despite several efforts to find it. It is therefore classed as Extinct.

This species is endemic to the Bourgogne Yonne Departement, France, where it was detected in 1860 along the Canal de Bourgogne, in the community of Cry, Departement Yonne. The species seems to have disappeared around 1930, its last finding dating to 1927 and it has not been seen since then despite several efforts to search for it (Lombard and Bajon 2000).

This species is extinct now but seems to have never been abundant (Lombard and Bajon 2000).

This herb was found on limestone hills that are facing southwards and are exposed to the sun (Lombard and Bajon 2000).

The causes for the disappearance of the species are supposed to be over-collection by botanists as well as limestone quarrying (Lombard and Bajon 2000).

This species is listed under Appendix I of the Convention on the Conservation of European Wildlife and Natural Habitats (Bern Convention). It has been classed as Extinct under the 1997 IUCN Red List of Threatened Plants (Walter and Gillet 1998). It is also classed as Extinct in the French Red Book of Threatened Plants (Olivier et al. 1995).