Taxonomic Swap 15562 (Committed on 2016-07-12)

FNA & GoBotany agree

New England Wild Flower Society's Flo... (Citation)
Added by eraskin on July 12, 2016 14:43 | Committed by eraskin on July 12, 2016
replaced with


Posted by jakob over 3 years ago (Flag)

Interesting. I went ahead with the swap when I found that the Flora of North America, Flora Novae-Anglieae, & Weakley's Flora of the Southern & Mid-Atlantic States agreed (and one of them needed to be demoted to a synonym in iNaturalist). However, The Plant List favors Pilosella. @bouteloua, care to weigh in?

Posted by eraskin over 3 years ago (Flag)

For taxon changes, I usually consider the native range of the species (which is Palaearctic in this particular case) and try to get the opinion of experts from that region before committing a change. Probably not THE most relevant point to consider (especially for groups with loads of species on both sides of the Atlantic), and potentially leading to a heterogeneous mix of genus-species combinations, but at least an inclusive process.

Posted by jakob over 3 years ago (Flag)

I've always thought it strange that we don't have a listed European taxonomic authority for plants...

It looks like Weakley has this to say:
"Sometimes included in Hieracium, the separation of Pilosella as a genus is increasingly supported by molecular, morphological, and biological evidence, and has become the dominant approach in Europe (Bräutigam & Greuter 2007) and worldwide (Funk et al. 2009; Kilian, Gemeinholzer, & Lack 2009)."

Seems they should be split!

Posted by bouteloua over 3 years ago (Flag)

Re European taxonomic authorities: I had made a proposal here

Euro+Med PlantList is now complete and accepted by most

Posted by jakob over 3 years ago (Flag)

Good discussion! I usually use the Kew World Checklist of Selected Plant Families as my first source, but Asteraceae is not one of the Selected Plant Families Good to know there's a widely-accepted taxonomic standard for vascular plants of Europe. Won't hurt my feelings if someone wants to swap this back to Pilosella; I just didn't want them the be listed separately.

Posted by eraskin over 3 years ago (Flag)

What do you think about swapping this back to Pilosella, @amc @blue_celery @jasonrgrant @marcoschmidtffm @vilseskog @veronika_johansson @nannie?

Posted by jakob over 3 years ago (Flag)

ok, as far as I am concerned, let's swap it back to Pilosella.
Pilosella caespitosa (Dumortier) P. D. Sell & C. West is the accepted name also in our very recent Italian checklist that has been cared by a specialist of both Pilosella and Hieracium

Posted by blue_celery over 3 years ago (Flag)

I would go for Pilosella, it is a well-defined group (although that may also be true for Hieracium s.l.), Euro+Med, TPL and WFO accept it, and also more taxon-specific sites like Global Compositae Checklist and Cichorieae portal.

Posted by marcoschmidtffm over 3 years ago (Flag)

It might be worth cross-checking the current arrangement of the 2 genera for a consistent update (= possibly swapping a bunch of other species):

Posted by jakob over 3 years ago (Flag)
Posted by jakob over 3 years ago (Flag)

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