Lemna minor: an example of what happens when there is no taxon expert tending to identifications

General
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Also: http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=200024550

See also VASCAN.

In my area (Alberta) and some contiguous areas (where S. canadensis hasn’t naturalized… and I see from the previous comment uncertainty as to whether it has done so in BC) the plants that were formerly classified as Solidago canadensis are now considered to be Solidago altissima and Solidago lepida; see Vascular Flora of Alberta (Kershaw & Allen).

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Final link in my post was broken. Hopefully this version is fixed:
https://linnet.geog.ubc.ca/Atlas/Atlas.aspx?sciname=Solidago%20canadensis

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That is really interesting. I have happily identified L. minor in Louisiana, as it looks exactly like the L. minor I know from Denmark. I never knew to check manuals, as the CV helpfully (?) also suggests it. So I learned something new today.

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@mertensia That would be a huge improvement! (As would range maps in the species descriptions.)

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