More than 100 species of exotic dandelion are reported for BC, previously erroneously identified as Taraxacum officinale and T. erythrospermum—concepts misapplied in North America. We can’t begin to sort out the natives from these highly diverse, pervasive exotic species until we get the basic sect…

Section Ruderalia has to be thrown for nomenclatural reasons. Section Taraxacum now accounts for what many in the UK and some elsewhere still call section Ruderalia. A few rambling notes of clarification (I’m the author of the article under discussion here): First, my apologies about the paywall. …

It would be premature at this point to write keys to the exotic species. It’s still too easy to find new additions. Here’s a copy of the keys to sections that appears in paper: 1a Plants usually growing in wild vegetation at high elevations or latitudes; bracts sometimes strongly corniculate, the o…

This is a great post this is also the reason why I no longer post these Working this past summer for a USFS contractor doing GIS work in the Sacramento Mtns Here in New Mexico I learned there are over 20 different types present In this mountain range most require a lab test to figure out the type …

this here illustrates the issue well. the taxonomy is ‘great’ in terms of understanding hte evolution of the species but if it means we can’t monitor or document them, we miss a lot. We need a parallel taxonomy that works in the field. Otherwise, they just drop off the map. Kind of like how i stoppe…

Thank you for your posts! Would this key be sufficient for identifying sections in eastern North America or would it be better to wait for more information to be published?

Not very interesting to me if I can’t identify it past coarse levels due to mangled taxonomy.

It depends on the situation I think. Looking in iNat, there appears to be only two species of Polypodium in Vermont - in which case you aren’t really losing any information by identifying to genus? With the dandelions, it sounds to me like the status quo in North America is actually worse than just…

[image] reuvenm: It depends on the situation I think. Looking in iNat, there appears to be only two species of Polypodium in Vermont - in which case you aren’t really losing any information by identifying to genus? yeah, that is true… for now. Until more are split off. Genus level things aren…

But that’s what you do almost day as identifier. My opinion corresponds with one of iNat purposes - loosing data is worse than getting stuck at genus level, rg or not. If you just don’t wanna observe something it’s perfectly fine, but if it’s just because of taxonomy difficulties than such ideas sho…

Overlooked dandelion diversity in BC (and everywhere in North America?)

Nature Talk

marina_gorbunova January 17, 2020, 3:37pm 59

What is the reason of not adding them? Genus is a good enough id.

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Overlooked dandelion diversity in BC (and everywhere in North America?)

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