Plants 20–50 cm. Cauline leaf-bases cuneate or sometimes rounded, not clasping. Heads usually 5–20. Phyllaries green, oblanceolate (outer) to linear (inner), unequal, outer exceeding inner and wider, outer often foliaceous, apices acute. 2n = 16, 32, 48, 64, 80, 96.


Phenology: Flowering Jun–Sep.
Habitat: Openings in montane woods, middle to high elevation grasslands, alpine meadows
Elevation: 1400–3200 m

Distribution

V20-1188-distribution-map.gif

Alta., B.C., Alaska, Mont., Wash.

Discussion

Variety foliaceum is more common in the northern part of the range of the species.

Selected References

None.

Lower Taxa

None.

"thin" is not a number.

96 +, 80 +, 64 +, 48 +, 32 +  and 16 +
not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
paniculiform +
indeterminate +  and determinate +
Luc Brouillet +, John C. Semple +, Geraldine A. Allen +, Kenton L. Chambers +  and Scott D. Sundberg† +
(Lindley ex de Candolle) G. L. Nesom +
petiolate +  and subpetiolate +
spatulate;oblanceolate elliptic or ovate +
inner +  and outer +
cuneate +  and rounded +
indurate +
Aster foliaceus +
1-nerved +, subsessile +, sessile +  and petiolate +
2.5 cm25 mm <br />0.025 m <br /> (3 cm30 mm <br />0.03 m <br />) +
3.5 cm35 mm <br />0.035 m <br /> (12 cm120 mm <br />0.12 m <br />) +
elliptic;obovate +
0.8 cm8 mm <br />0.008 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
rugulose +  and muricate +
lanceolate +
0 cm0 mm <br />0 m <br /> (25 cm250 mm <br />0.25 m <br />) +
barbellulate +  and barbellate +
rounded +  and cuneate +
sessile +  and petiolate +
not 2-lipped +  and actinomorphic +
yellow +, violet +  and purple +
at maturity , more or less ampliate , tubes usually shorter +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
strigillose +  and glabrous +
not compressed +, cylindric +  and obovoid +
fertile +  and bisexual +
fertile +  and bisexual +
Alta. +, B.C. +, Alaska +, Mont. +  and Wash. +
1400–3200 m +
hairy +, puberulent +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Openings in montane woods, middle to high elevation grasslands, alpine meadows +
disciform +  and radiate +
in paniculiform arrays +  and singly +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
1.6 cm16 mm <br />0.016 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
campanulate +
0.6 cm6 mm <br />0.006 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
1.8 cm18 mm <br />0.018 m <br /> (2 cm20 mm <br />0.02 m <br />) +
2 (?) +  and 5 (?) +
sessile +  and petiolate +
cauline +  and basal +
decurrent +
triangular +
entire +  and serrate +
not +  and hyaline +
ciliate +  and scabrous +
coarsely serrate +  and crenate or entire +
2-carpellate +
white +  and tawny +
persistent +
25 +  and 40 +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Flowering Jun–Sep. +
oblanceolate +  and linear +
subpetiolate +  and sessile +
styliferous +, neuter +  and pistillate +
bearing subulate enations +, hairy +  and bristly +
flat;slightly convex +
exalbuminous +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.1mm;0.2mm +
Illustrated +  and Endemic +
branched +  and simple +
ascending +  and erect +
puberulent +  and glabrous +
1 +  and 5 +
appendaged +  and truncate +
papillate +  and smooth +
Aster sect. Heterastrum +  and Aster subg. Symphyotrichum +
Symphyotrichum foliaceum var. foliaceum +
Symphyotrichum foliaceum +
variety +
funnelform-campanulate +  and cylindric +
at maturity , more or less ampliate , tubes usually shorter +
ampliate +
10 cm100 mm <br />0.1 m <br /> (60 cm600 mm <br />0.6 m <br />) +
elliptic +  and lanceolate +