Difference between revisions of "Symphyotrichum grandiflorum"

(Linnaeus) G. L. Nesom

Phytologia 77: 283. 1995.

Common names: Large-flowered aster
Endemic
Basionym: Aster grandiflorus Linnaeus Sp. Pl. 2: 877. 1753
Synonyms: Virgulus grandiflorus (Linnaeus) Reveal & Keener
Treatment appears in FNA Volume 20. Treatment on page 484. Mentioned on page 470, 483.
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|common_names=Large-flowered aster
 
|common_names=Large-flowered aster
|basionyms={{Treatment/ID/Synonym
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|label=Endemic
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|basionyms={{Treatment/ID/Basionym
 
|name=Aster grandiflorus
 
|name=Aster grandiflorus
 
|authority=Linnaeus
 
|authority=Linnaeus
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|rank=species
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|publication_title=Sp. Pl.
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|publication_place=2: 877. 1753
 
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|synonyms={{Treatment/ID/Synonym
 
|synonyms={{Treatment/ID/Synonym
 
|name=Virgulus grandiflorus
 
|name=Virgulus grandiflorus
 
|authority=(Linnaeus) Reveal & Keener
 
|authority=(Linnaeus) Reveal & Keener
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|rank=species
 
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|hierarchy=Asteraceae;Asteraceae tribe Astereae;Symphyotrichum;Symphyotrichum subg. Virgulus;Symphyotrichum grandiflorum
 
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Symphyotrichum;Symphyotrichum subg. Virgulus;Symphyotrichum grandiflorum
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name=Symphyotrichum grandiflorum
 
name=Symphyotrichum grandiflorum
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|authority=(Linnaeus) G. L. Nesom
 
|authority=(Linnaeus) G. L. Nesom
 
|rank=species
 
|rank=species
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|publication title=Phytologia
 
|publication title=Phytologia
 
|publication year=1995
 
|publication year=1995
|special status=
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|special status=Endemic
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|tribe=Asteraceae tribe Astereae
 
|tribe=Asteraceae tribe Astereae
 
|genus=Symphyotrichum
 
|genus=Symphyotrichum

Latest revision as of 19:58, 5 November 2020

Perennials, 50–100 cm, colonial; woody rhizomatous. Stems 1–5+, erect (stout, brown), proximally ± hispid, distally sparsely strigose, distally stipitate-glandular. Leaves stiff (dark green), greatly reduced distally, margins entire, scabrous; basal early deciduous, sessile, blades (3-nerved) oblanceolate, 40–80 × 4–12 mm, bases attenuate, apices obtuse to acute, faces sparsely scabrous; proximal cauline usually withered by flowering, sessile, blades oblanceolate to lanceolate-oblong, 20–60 × 5–20 mm, bases cordate-clasping, apices acute, mucronulate, faces glabrate to sparsely scabrous, stipitate-glandular; distal sessile, blades lanceolate to oblong, 20–40 × 5–8 mm, bases cuneate, apices acute, mucronulate to white-spinulose, faces glabrous or scabrous, sparsely stipitate-glandular. Heads in racemiform to paniculiform arrays, branches patent or ascending with 1–5+ heads. Peduncles 3–5 cm, short-strigose, stipitate-glandular, bracts spreading to reflexed, lanceolate-oblong, 5–10 mm, little reduced distally, grading into phyllaries. Involucres campanulate, 8.5–12 mm. Phyllaries in 3–4 series, spatulate-oblanceolate, unequal, bases ± indurate, margins scarious, green zones covering distal portion, apices spreading to strongly reflexed, faces sparsely scabrous, moderately stipitate-glandular. Ray florets 14–35; corollas light to reddish purple, laminae 11–15(–20) × 1.5–2.5 mm. Disc florets 25–35; corollas yellow becoming reddish purple, 5.5–8 mm, lobes narrowly triangular, 0.7–1 mm. Cypselae light brown, cylindric to narrowly obovoid, ± compressed, 3–4.5 mm, 7–10-nerved (brown), faces moderately strigose; pappi tan, 5.5–6 mm. 2n = 30, 60.


Phenology: Flowering (Sep–)Oct(–Nov).
Habitat: Sandy soils, sand hills, roadsides, edges of deciduous woods and thickets
Elevation: 0–200+ m

Discussion

Selected References

None.

Lower Taxa

None.
Luc Brouillet +, John C. Semple +, Geraldine A. Allen +, Kenton L. Chambers +  and Scott D. Sundberg† +
(Linnaeus) G. L. Nesom +
Aster grandiflorus +
Large-flowered aster +
N.C. +, S.C. +  and Va. +
0–200+ m +
Sandy soils, sand hills, roadsides, edges of deciduous woods and thickets +
Flowering (Sep–)Oct(–Nov). +
Virgulus grandiflorus +
Symphyotrichum grandiflorum +
Symphyotrichum subg. Virgulus +
species +