Heads up: Some or all of the identifications affected by
this split may have been replaced with identifications of Sanguisorba. This
happens when we can't automatically assign an identification to one of the
output taxa.
Review identifications of Sanguisorba canadensis 62578
From Flora of North America, which also accepts this split:
The taxonomic and nomenclatural treatment of Sanguisorba stipulata has varied. Plants from northwest North America and northeast Asia are not taxonomically distinguishable, a conclusion reached also by Li C. L. et al. (1994). The name S. sitchensis has been customarily applied to North American plants; the oldest name available for a taxon bridging the Bering Strait is S. stipulata. An additional taxonomic question is the relationship of this taxon to eastern North American S. canadensis. While similar and undoubtedly closely related, the two differ in several morphologic characteristics, are strongly allopatric in distribution, and are here regarded as sibling species.
In addition to geographic distribution, the following features can be used to distinguish S. canadensis and S. stipulata (from FNA):
Leaflets oblong-ovate to lance-oblong, lengths ca. 2–4 times widths, bases broadly cuneate, truncate, or rounded to slightly cordate; calyx lobe midveins thickened distally; plants 9–20 dm......Sanguisorba canadensis
Leaflets ovate-oblong to ovate or suborbiculate, lengths ca. 1.2–2 times widths, bases usually deeply cordate, rarely truncate; calyx lobe midveins not thickened distally; plants 2–12 dm......Sanguisorba stipulata
POWO (2018). 'Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet; http://apps.kew.org/wcsp/ Retrieved 7 November 2018' (Link)
Unintended disagreements occur when a parent (B) is
thinned by swapping a child (E) to another part of the
taxonomic tree, resulting in existing IDs of the parent being interpreted
as disagreements with existing IDs of the swapped child.
Identification
ID 2 of taxon E will be an unintended disagreement with ID 1 of taxon B after the taxon swap
If thinning a parent results in more than 10 unintended disagreements, you
should split the parent after swapping the child to replace existing IDs
of the parent (B) with IDs that don't disagree.