Nigritelles are high altitude orchids only. They will be found in the central massif or the Jura for the lowest altitudes but abundantly in the Alps and also in the Pyrenees. 

Differentiating the species will be a complicated task because even within a station we will find plants with more or less conical or round ears, more or less elongated. The coloration is generally purple as for many high altitude plants. All species have a more or less pronounced smell of vanilla.

It will therefore be necessary to rely on specialized works to find distinctive signs in the form of labelles and bracts.

This species is only found in the Alps. It displays a pink coloring at the bottom of the inflorescence and bracts longer than this one.