Flora of North America species comparison

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Symphyotrichum ontarionis var. glabratum
Photo is of parent taxon
Leaves

abaxial faces glabrous or glabrate.
2n

= 32.

Symphyotrichum ontarionis var. glabratum
Phenology Flowering Jul–Aug.
Habitat Alluvial stream shores
Elevation 10–200 m (0–700 ft)
Distribution
from FNA
MI; ON; QC
[BONAP county map]
Discussion

Variety glabratum reaches farther north in Ontario and Quebec than does var. ontarionis, as far as the Clay Belt and streams of the James Bay basin. It may be present in Minnesota and Wisconsin. It may be confused with Symphyotrichum tradescantii, which is mostly allopatric. It is distinguished from the latter by its more deeply lobed disc corollas.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 20, p. 519.
Parent taxa Asteraceae > tribe Astereae > Symphyotrichum > subg. Symphyotrichum > sect. Symphyotrichum > Symphyotrichum ontarionis
Sibling taxa
S. ontarionis var. ontarionis
Synonyms Aster ontarionis var. glabratus
Name authority (Semple) Brouillet & Bouchard: Phytologia 82: 138. (1997)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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