Symphyotrichum spathulatum var. yosemitanum

(A. Gray) G. L. Nesom

Phytologia 77: 292. 1995.

Common names: Western bog aster
Endemic
Basionym: Aster ascendens var. yosemitanus A. Gray in A. Gray et al., Syn. Fl. N. Amer. 1(2): 191. 1884 (as adscendens)
Synonyms: Aster occidentalis var. yosemitanus (A. Gray) Cronquist Aster paludicola Piper
Treatment appears in FNA Volume 20. Treatment on page 535.

Plants 20–60 cm. Leaves linear. Heads 3–25.


Phenology: Flowering Jul–Aug.
Habitat: Damp meadows in oak woodlands and coniferous forests
Elevation: 1200–2200 m

Discussion

Variety yosemitanum occurs from southern Oregon to the Sierra Nevada of California.

Selected References

None.

Lower Taxa

None.

"thin" is not a number.

not tailed +, rounded +  and obtuse +
distinct +
obtuse;acute;acute +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
corymbiform +  and paniculiform +
indeterminate +  and determinate +
Luc Brouillet +, John C. Semple +, Geraldine A. Allen +, Kenton L. Chambers +  and Scott D. Sundberg† +
(A. Gray) G. L. Nesom +
spatulate;oblanceolate elliptic or ovate +
cuneate +  and rounded +
indurate +
Aster ascendens var. yosemitanus +
1-nerved +, subsessile +, sessile +  and petiolate +
elliptic +  and linear to narrowly +
3 cm30 mm <br />0.03 m <br /> (6 cm60 mm <br />0.06 m <br />) +
attenuate;narrowly elliptic;obovate +
reduced +
0.2 cm2 mm <br />0.002 m <br /> (1 cm10 mm <br />0.01 m <br />) +
rugulose +  and muricate +
barbellulate +  and barbellate +
sessile +  and petiolate +
Western bog aster +
not 2-lipped +  and actinomorphic +
reddish +, yellow +  and violet +
at maturity , more or less ampliate , tubes usually shorter +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
strigillose +  and glabrous +
not compressed +, cylindric +  and obovoid +
fertile +  and bisexual +
fertile +  and bisexual +
Calif. +  and Oreg. +
1200–2200 m +
hairy +, puberulent +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Damp meadows in oak woodlands and coniferous forests +
disciform +  and radiate +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.4 cm4 mm <br />0.004 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
campanulate +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
1.8 cm18 mm <br />0.018 m <br /> (2.1 cm21 mm <br />0.021 m <br />) +
2 (?) +  and 5 (?) +
sessile +  and petiolate +
cauline +  and basal +
decurrent +
triangular +
not +  and hyaline +
ciliate +  and scabrous +
coarsely serrate +  and crenate or entire +
2-carpellate +
persistent +
25 +  and 40 +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Flowering Jul–Aug. +
linear to linear +  and oblong +
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 +
branched +  and simple +
ascending +  and erect +
puberulent +  and glabrous +
1 +  and 5 +
appendaged +  and truncate +
papillate +  and smooth +
Aster occidentalis var. yosemitanus +  and Aster paludicola +
Symphyotrichum spathulatum var. yosemitanum +
Symphyotrichum spathulatum +
variety +
funnelform-campanulate +  and cylindric +
at maturity , more or less ampliate , tubes usually shorter +
ampliate +
20 cm200 mm <br />0.2 m <br /> (80 cm800 mm <br />0.8 m <br />) +
elliptic +  and lanceolate +