Flora of North America species comparison

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Symphyotrichum spathulatum var. intermedium
Photo is of parent taxon

larger western mountain aster, western mountain aster
Habit Plants 40–80 cm.
Leaves

narrowly elliptic to oblanceolate.
Heads

10–50(–75).
64

.
2n

= 32, 48.

Symphyotrichum spathulatum var. intermedium
Phenology Flowering Jul–Aug.
Habitat Grasslands and montane meadows, open coniferous forests
Elevation 1200–2000 m (3900–6600 ft)
Distribution
from FNA
CA; ID; NV; OR; WA; BC
[BONAP county map]
Discussion

Variety intermedium is found mainly in the northern part of the species range and is only occasional in California and Nevada.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 20, p. 535.
Parent taxa Asteraceae > tribe Astereae > Symphyotrichum > subg. Symphyotrichum > sect. Occidentales > Symphyotrichum spathulatum
Sibling taxa
S. spathulatum var. spathulatum, S. spathulatum var. yosemitanum
Synonyms Aster occidentalis var. intermedius, Aster vallicola
Name authority (A. Gray) G. L. Nesom: Phytologia 77: 292. (1995)
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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