Compilation
Symphyotrichum squamatum

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Name

Identification
Aster subulatus Michx. [family COMPOSITAE ] Verified by Not on sheet, Symphyotrichum squamatum (Spreng.)G.L.Nesom [family COMPOSITAE ] (stored under name); Verified by Not on sheet,
Related name
  • Aster bangii
  • Tripolium conspicuum
  • Aster barcinonensis
  • Symphyotrichum squamatum
  • Senecio
  • Unknown
  • Aster subulatus
Common name
  • Southeastern annual saltmarsh aster, Flora of North America Vol. 20

Flora

Entry for Symphyotrichum subulatum (Michaux) G. L. Nesom var. squamatum (Sprengel) S. D. Sundberg [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 subulatum (Michaux) G. L. Nesom var. squamatum (Sprengel) S. D. Sundberg [family ], Sida, 21: 908. 2004
Conyza squamata Sprengel [family COMPOSITAE], Syst. Veg., 3: 515. 1826
Symphyotrichum squamatum (Sprengel) G. L. Nesom [family ]
Treatment Author(s)
Luc Brouillet
John C. Semple
Geraldine A. Allen
Kenton L. Chambers
Scott D. Sundberg†
Information
Plants 30–150 cm. Stems simple or branched basally. Heads 30–100 in open, diffuse arrays, secund on primary branches longer than peduncles. Involucres 5–7(–8) mm. Phyllaries 18–24(–30), subulate to lanceolate (often broadly so), green zones broadly lanceolate, absent from proximal portion. Ray florets 21–28(–38) in (2–)3 series; laminae white (drying white or lavender), 1.3–1.7(–2) × 0.2–0.3 mm, shorter than pappi, drying in inward curls, rarely coiling. Disc florets (3–)7–14, 4–4.9 mm. Cypselae 1.5–2.6(–3) mm; pappi 4–5.1(–5.3) mm. 2n = 20.
Phenology
jul-aug (summer), sep-nov (fall)
Altitude range
0–10 m;
Distribution
BermudaSouth Americaintroduced in Europe (France)Asia (Iraq)Asia (Japan)Australiaand elsewhere.USA Ala.USA Fla.USA La.USA N.C.USA Tex.
Discussion
The name Aster subulatus Michaux var. sandwicensis (A. Gray ex H. Mann) A. G. Jones (Brinttonia 36: 465. 1984) has priority at the varietal level; the combination in Symphyotrichum has yet to be made.
Native/Introduced
introduced;

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