Identifying Dactylorhiza Species in Europe and North America

Recently I decided that it might be fun to write a living document detailing the distinctions between taxa in the genus Dactylorhiza, which will be updated as I learn more about the genus. Feel free to comment on this post or on the document if you see any errors, know additional criteria, have any suggestions, etc.

It should be noted that I am not an expert on this genus, and still have a great deal to learn about its taxonomy. For convenience, the names I use in this document are based on iNaturalist's taxonomy, and will be updated accordingly. Additionally, it should be understood that a great deal of controversy surrounds Dactylorhiza, and that one must always be careful to understand which taxonomy they (or others) are working with. Aside from having an abundance of natural hybrids, Dactylorhiza is also rich with synonyms.

For the time being, this document is not comprehensive. New taxa, such as infraspecific taxa and hybrids, will be added in time.

So, without further ado, here's the document.

As a note, I have not forgotten about making an identification page for P. huronensis and P. aquilonis. As a matter of fact, I have drawings completed for both species. If all goes well, that should be posted soon as well.


Publicado por arethusa arethusa, 22 de junio de 2020


@catullus, @mercantour, @wolfgangb, @mperille, @afid—this may be of interest to you all.

Publicado por arethusa hace más de 1 año (Marca)

Very nice! I will have to try diving back into Dactylorhiza again at some point soon.

Publicado por afid hace más de 1 año (Marca)

Wow, thanks for posting! I'll definitely be referring to this doc as I try to identify Dactylorhizas. :)

Publicado por catullus hace más de 1 año (Marca)

Waouuh ! What a work ! Thanks for sharing !

Publicado por mercantour hace más de 1 año (Marca)

I shall use this document to try to id my weird weird dactylorhiza...

Publicado por milodoingstuff hace 12 días (Marca)

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