Symphyotrichum novi-belgii var. crenifolium

(Fernald) Labrecque & Brouillet

Phytologia 82: 138. 1997.

Endemic
Basionym: Aster foliaceus var. crenifolius Fernald Rhodora 17: 15. 1915
Synonyms: Aster crenifolius (Fernald) Cronquist Aster foliaceus var. subpetiolatus Fernald Aster novi-belgii var. crenifolius (Fernald) Labrecque & Brouillet
Treatment appears in FNA Volume 20. Treatment on page 529. Mentioned on page 528.

Plants robust, compact. Stems glabrous (sometimes hirsute in lines distally). Leaf-blades widely ovate to oblong, 4–5 times as long as wide, bases strongly clasping. 2n = 48.


Phenology: Flowering Aug–Sep.
Habitat: Stony or sandy, open upper seashores
Elevation: 0 m

Discussion

Variety crenifolium is known from the Gaspé Peninsula and nearby New Brunswick. Reports from New England states need confirmation, as all of the material from there seen by us is var. novi-belgii or var. elodes.

Selected References

None.

Lower Taxa

None.

"thick" is not a number.

not tailed +, rounded +  and obtuse +
distinct +
1.7 cm17 mm <br />0.017 m <br /> (6 cm60 mm <br />0.06 m <br />) +
spreading +  and more or less squarrose +
subequal +
scarious +
6mm +  and 11mm +
usually triangular +  and linear +
usually deltate +  and lanceolate +
spiciform +, racemiform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
Luc Brouillet +, John C. Semple +, Geraldine A. Allen +, Kenton L. Chambers +  and Scott D. Sundberg† +
(Fernald) Labrecque & Brouillet +
winged-petiolate +, sessile +  and petiolate +
4 cm40 mm <br />0.04 m <br /> (20 cm200 mm <br />0.2 m <br />) +
auriculate +, rounded +, cuneate +, obovate +  and elliptic +
indurate +
4mm;40mm +
Aster foliaceus var. crenifolius +
winged-petiolate +, sessile +  and petiolate +
1.3 cm13 mm <br />0.013 m <br /> (6.2 cm62 mm <br />0.062 m <br />) +
lanceovate;linear-lanceolate +
reduced +
3mm;15mm +
rugulose +  and muricate +
subtending +
ovate +  and linear-oblanceolate +
reduced +  and small +
barbellulate +  and barbellate +
sessile +  and petiolate +
not 2-lipped +  and actinomorphic +
yellow becoming reddish-brown +, white +, pink +, purple +  and blue-violet +
at maturity , more or less ampliate , tubes usually shorter +
beaked +, 2-ribbed +  and 5-ribbed +
tan +  and brown +
strigillose +  and glabrous +
compressed +  and obovoid +
fertile +  and bisexual +
fertile +  and bisexual +
N.B. +  and Que. +
sparsely strigose +  and glabrate +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Stony or sandy, open upper seashores +
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 +
0.6 cm6 mm <br />0.006 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
10mm;19mm +
2 (?) +  and 5 (?) +
0.9mm;2.1mm +
sessile +  and petiolate +
cauline +  and basal +
fleshy +  and firm +
decurrent +
reflexed;spreading;erect +
lanceolate +
entire +  and serrulate +
coarsely serrate +  and crenate or entire +
2-carpellate +
sordid +  and yellowish +
persistent +
25 +  and 40 +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
pilose +  and glabrous +
0.4 cm4 mm <br />0.004 m <br /> (4.1 cm41 mm <br />0.041 m <br />) +
Flowering Aug–Sep. +
spatulate or oblong-lanceolate +  and linear-lanceolate or linear +
less unequal +  and subequal +
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 +
1 +  and 5 +
appendaged +  and truncate +
papillate +  and smooth +
Aster crenifolius +, Aster foliaceus var. subpetiolatus +  and Aster novi-belgii var. crenifolius +
Symphyotrichum novi-belgii var. crenifolium +
Symphyotrichum novi-belgii +
variety +
funnelform-campanulate +
ampliate +
100 cm1,000 mm <br />1 m <br /> (140 cm1,400 mm <br />1.4 m <br />) +
cespitose +  and colonial +
17 cm170 mm <br />0.17 m <br /> (100 cm1,000 mm <br />1 m <br />) +
lanceolate +