Compilation
Aster lanceolatus

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Name

Identification
Aster lanceolatus Willdenow [family ASTERACEAE ] (stored under name); Verified by J. Semple, Isotype of Aster interior Wiegand [family ASTERACEAE ] Verified by Wiegand, 1933
Related name
  • Aster pilosus
  • Aster paniculatus
  • Aster praealtus
  • Aster longifolius
  • Aster novi-belgii
  • Aster sp.
  • Aster interior
  • Aster tradescanti
  • Aster hesperius
  • Aster lanceolatus

Flora

Entry for Symphyotrichum lanceolatum (Willdenow) G. L. Nesom var. lanceolatum [family ]
Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 20,
Names
Symphyotrichum lanceolatum (Willdenow) G. L. Nesom var. lanceolatum [family ]
Aster bellidiflorus Willdenow [family COMPOSITAE]
Aster eminens Willdenow [family COMPOSITAE]
Aster lanceolatus Willdenow subsp. simplex (Willdenow) A. G. Jones [family COMPOSITAE]
Aster laxifolius Nees var. laetifolius Torrey & A. Gray [family COMPOSITAE]
Aster laxus Willdenow [family COMPOSITAE]
Aster paniculatus Lamarck var. polychrous Lunell [family COMPOSITAE]
Aster simplex Willdenow [family COMPOSITAE]
Aster simplex var. ramosissimus (Torrey & A. Gray) A. Cronquist [family COMPOSITAE]
Aster stenophyllus Lindley ex de Candolle [family COMPOSITAE]
Aster tenuifolius Linnaeus var. bellidifolius (Willdenow) Torrey & A. Gray [family COMPOSITAE]
Aster tenuifolius var. ramosissimus Torrey & A. Gray [family COMPOSITAE]
Symphyotrichum simplex (Willdenow) Á. Löve & D. Löve [family ]
Treatment Author(s)
Luc Brouillet
John C. Semple
Geraldine A. Allen
Kenton L. Chambers
Scott D. Sundberg†
Information
Stems stout to slender, glabrous or hairy in lines. Leaf blades linear to lanceolate or oblanceolate (reduced in arrays), margins entire. Heads 1–20+ per branch, sometimes congested distally on lateral branches, not subtended by foliaceous bracts. Involucres 3.6–4.8 mm. Phyllaries: outer 1.7–4 × 0.3–0.7 mm, inner 3–5.1 × 0.3–0.7 mm, outer 1/3–2/3 length of inner. Ray florets 17–47; corollas white to purplish or bluish, laminae 3.2–8 mm. Disc florets 16–38; corollas 2.9–5.2 mm, limbs 1.6–2.7 mm, lobes 0.6–1.6 mm. Cypselae 0.5–1.6 mm; pappi 2.7–5.2 mm. 2n = 32, 40, 48, 56, 64.
Phenology
jul-aug (summer), sep-oct (fall)
Altitude range
0–900+ m;
Distribution
introduced in Europe.USA Ark.USA Conn.USA D.C.USA Ill.USA Ind.USA IowaUSA Kans.USA Ky.USA La.USA MaineUSA Md.USA Mass.USA Mich.USA Minn.USA Mo.USA Nebr.USA N.H.USA N.J.USA N.Dak.USA OhioUSA Okla.USA Pa.USA R.I.USA S.Dak.USA Tex.USA Vt.USA Va.USA W.Va.USA Wis.Canada Alta.Canada Man.Canada N.B.Canada Nfld. and Labr. (Nfld.)Canada N.S.Canada Ont.Canada P.E.I.Canada Que.Canada Sask.
Discussion
Variety lanceolatum is the northernmost variety, reaching the southern boreal region from Alberta to central Quebec and the island of Newfoundland. It is most variable morphologically and cytologically. The variety (and probably the others as well) is reported to hybridize with Symphyotrichum boreale, S. laeve, S. lateriflore, S. racemosum (documented by J. C. Semple and R. A. Brammall 1982), and S. puniceum (A. G. Jones 1989). Some of those hybrids need confirmation.
Symphyotrichum ×salignum (Willdenow) G. L. Nesom is of garden origin and is widely naturalized in central and northern Europe. It is the hybrid between S. lanceolatum var. lanceolatum and S. novi-belgii var. novi-belgii, and it may occur along the Atlantic seashore where the ranges of those two taxa overlap.

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