Symphyotrichum ciliolatum

(Lindley) Á. Löve & D. Löve

Taxon 31: 359. 1982.

Common names: Lindley’s or fringed blue aster aster ciliolé
Endemic
Basionym: Aster ciliolatus Lindley in W. J. Hooker, Fl. Bor.-Amer. 2: 9. 1834
Synonyms: Aster ciliolatus var. comatus (Fernald) A. G. Jones Aster lindleyanus Rydberg Aster wilsonii
Treatment appears in FNA Volume 20. Treatment on page 502. Mentioned on page 474, 500, 503, 509, 529.

Perennials, (10–) 20–120 cm, colonial or cespitose; usually long-rhizomatous, sometimes with branched caudices. Stems 1–3+, erect (straight to ± flexuous), glabrate to sparsely hirsute or strigillose, especially distally. Leaves thin, margins coarsely, sharply serrate to crenate-serrate or serrulate, ciliate to scabrous, apices acute or acuminate, mucronulate, abaxial faces glabrate to sparsely hirsute, midveins usually densely hirsute, sometimes glabrous, adaxial glabrous or glabrate to scabrellous; basal usually withering by flowering (sometimes persistent on small plants), long-petiolate (petioles slightly winged, sheathing, ciliate), blades ovate, (24–) 40–120 (–270) × 15–70 mm, bases usually shallowly cordate, sometimes rounded; proximal cauline often withering by flowering, winged-petiolate, blades ovate to oblanceolate or lanceolate, (24–) 60–150 × (10–) 20–60 mm, reduced distally, bases subcordate to cuneate; distal sessile or sometimes subsessile (petioles widely-winged), blades lanceovate to linear-lanceolate or linear, 18–75 × (2–) 5–25 mm, bases cuneate, sometimes ± clasping, margins serrulate or entire. Heads [(6–) 13–50 (–100+)] in open, paniculiform arrays, branches ascending. Peduncles 0.2–1.5+ cm, unequal, reduced distally, ± hirsutulous, bracts 0–4, subulate or linear. Involucres campanulate, (4–) 5–6.5 mm. Phyllaries in 4–5 series, narrowly oblong-lanceolate to oblong-oblanceolate or linear-oblanceolate (innermost), ± unequal, bases indurate 1/3–2/3, margins narrowly scarious, erose, hyaline or infrequently purplish, sparsely ciliolate, green zones lanceolate to linear-lanceolate or linear, apices acuminate to long-acuminate, faces glabrous. Ray-florets (12–) 14–20; corollas pale to deep blue or bluish purple, laminae (8.3–) 10–15 × 1–2.3 mm. Disc-florets 14–25 (–29); corollas yellow becoming reddish purple, 4.3–6.4 mm, tubes shorter than funnelform throats, lobes narrowly triangular, 0.5–1.1 mm. Cypselae yellowish white, obovoid, compressed, 1–2 mm, 5–6-nerved, faces glabrate to sparsely strigillose; pappi white to pinkish, 3–6 mm. 2n = 48.


Phenology: Flowering late Jul–Oct.
Habitat: Rich, open, often ± calcareous, boreal deciduous forests (aspen or aspen-birch-fir-spruce), edges of woods, clearings, aspen or bur oak thickets, sometimes open pine forests, streambanks, trails, roadsides
Elevation: 0–2000+ m

Distribution

V20-1124-distribution-map.gif

Alta., B.C., Man., N.B., Nfld. and Labr. (Nfld.), N.W.T., N.S., Ont., Que., Sask., Yukon, Ill., Maine, Mass., Mich., Minn., Mont., N.H., N.Y., N.Dak., S.Dak., Vt., Wis., Wyo.

Discussion

Symphyotrichum ciliolatum sporadically hybridizes with S. laeve var. laeve or var. geyeri in their areas of overlap, notably across the Canadian prairies and in south-central Ontario (Manitoulin Island, Bruce Peninsula). It also hybridizes with S. novi-belgii var. novi-belgii in the Gulf of St. Lawrence area [Symphyotrichum ×subgeminatum (Fernald) G. L. Nesom; syn. Aster subgeminatus (Fernald) B. Boivin]. Aster ciliolatus forma comatus Fernald is densely ciliolate along the midnerves and represents an extreme of the variation found in the species.

Selected References

None.

Lower Taxa

None.

"thin" is not a number.

... more about "Symphyotrichum ciliolatum"
glabrate +  and sparsely hirsute +
glabrate +  and glabrous +
not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
paniculiform +  and open +
indeterminate +  and determinate +
Luc Brouillet +, John C. Semple +, Geraldine A. Allen +, Kenton L. Chambers +  and Scott D. Sundberg† +
(Lindley) Á. Löve & D. Löve +
winged-petiolate +  and long-petiolate +
2.4 cm24 mm <br />0.024 m <br /> (6 cm60 mm <br />0.06 m <br />) +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
6 cm60 mm <br />0.06 m <br /> (15 cm150 mm <br />0.15 m <br />) +
cuneate +  and subcordate +
reduced +
indurate +
20mm;60mm +
Aster ciliolatus +
winged-petiolate +  and long-petiolate +
2.4 cm24 mm <br />0.024 m <br /> (6 cm60 mm <br />0.06 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
1.8 cm18 mm <br />0.018 m <br /> (7.5 cm75 mm <br />0.075 m <br />) +
lanceovate;linear-lanceolate or linear +
reduced +
5mm;25mm +
rugulose +  and muricate +
linear +  and subulate +
barbellulate +  and barbellate +
sessile +  and petiolate +
Lindley’s or fringed blue aster +  and aster ciliolé +
not 2-lipped +  and actinomorphic +
yellow becoming reddish purple +, pale +  and deep blue or bluish purple +
at maturity , more or less ampliate , tubes usually shorter +
0.43 cm4.3 mm <br />0.0043 m <br /> (0.64 cm6.4 mm <br />0.0064 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
yellowish white +
strigillose +  and glabrous +
compressed +  and obovoid +
fertile +  and bisexual +
fertile +  and bisexual +
subsessile +  and sessile +
Alta. +, B.C. +, Man. +, N.B. +, Nfld. and Labr. (Nfld.) +, N.W.T. +, N.S. +, Ont. +, Que. +, Sask. +, Yukon +, Ill. +, Maine +, Mass. +, Mich. +, Minn. +, Mont. +, N.H. +, N.Y. +, N.Dak. +, S.Dak. +, Vt. +, Wis. +  and Wyo. +
0–2000+ m +
glabrate +  and sparsely strigillose +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Rich, open, often ± calcareous, boreal deciduous forests (aspen or aspen-birch-fir-spruce), edges of woods, clearings, aspen or bur oak thickets, sometimes open pine forests, streambanks, trails, roadsides +
disciform +  and radiate +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
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 /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
0.83 cm8.3 mm <br />0.0083 m <br /> (1 cm10 mm <br />0.01 m <br />) +
10mm;15mm +
2 (?) +  and 5 (?) +
1mm;2.3mm +
sessile +  and petiolate +
cauline +  and basal +
decurrent +
reflexed;spreading;erect +
triangular +
entire +, serrulate +, sharply serrate +  and crenate-serrate +
purplish +  and hyaline +
ciliolate +, ciliate +  and scabrous +
coarsely serrate +  and crenate or entire +
glabrous +  and hirsute +
2-carpellate +
white +  and pinkish +
persistent +
25 +  and 40 +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
reduced +  and unequal +
0.2 cm2 mm <br />0.002 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Flowering late Jul–Oct. +
narrowly oblong-lanceolate +  and oblong-oblanceolate or linear-oblanceolate +
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 3 +
appendaged +  and truncate +
papillate +  and smooth +
Aster ciliolatus var. comatus +, Aster lindleyanus +  and Aster wilsonii +
Symphyotrichum ciliolatum +
Symphyotrichum sect. Symphyotrichum +
species +
funnelform-campanulate +  and cylindric +
ampliate +
10 cm100 mm <br />0.1 m <br /> (20 cm200 mm <br />0.2 m <br />) +
cespitose +  and colonial +
20 cm200 mm <br />0.2 m <br /> (120 cm1,200 mm <br />1.2 m <br />) +
tree +, shrub +  and subshrub +
lanceolate +  and linear-lanceolate or linear +