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head - top view

disk flowers

Style branches of disk flowers

Disk corolla

Disk corolla - top view

Anther collar shedding pollen

Style branches and anther collar showing apical apendages

Disk flower

Ovary and base of pappus bristles

Ray flower

Tube of ray corolla - note hairs

Ray style and style branches

Ray style branches

Disk

Disk flowers in bud

Involucre of phyllaries

Pubescence of lower phyllaries

Older disk flowers becom a darker reddish color

 

Old disk corolla & anther collar

Older disk corolla showing lobes

Older flower - note curling of ray corollas

Immature ray achenes

Immature disk achene

Young leaf - lower surface

Young upper leaf showing leaf base and adaxial view

Leaf node and axillary branches

Older portion of stem

Portion of inflorescence branch

Disk flowers in bud

Author

Shane T. Leggio

Capitula/heads

 Heads 3–10+ per branch, if many, not congested on lateral branches, not subtended by foliaceous bracts.

-- Merge record --

Heads 3–10+ per branch, if many, not congested on lateral branches, not subtended by foliaceous bracts.

Common Name(s)

 Lance-leaved or panicled or white panicled aster, aster lancéolé

-- Merge record --

Lance-leaved or panicled or white panicled aster

Disk Flowers

 Disc florets 13–29; corollas 3.2–5.7 mm, limbs 1.9–3.2 mm, lobes 0.4–1.1 mm.

-- Merge record --

 Disc florets 13–29; corollas 3.2–5.7 mm, limbs 1.9–3.2 mm, lobes 0.4–1.1 mm.

Ecology

Full sun to partial shade, thickets, edges of wet deciduous woods, margins of streams, ditches; 0–800+ m

Variety latifolium is generally more southern than var. lanceolatum. It is present in the southern Atlantic and Gulf coastal plain states where the latter is absent. In the southern states it is present inland and not on the coastal plains. The report of this variety for southern Quebec remains to be confirmed.

 

-- Merge record --

Full sun to partial shade, thickets, edges of wet deciduous woods, margins of streams, ditches; 0–800+ m.

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Family

ASTERACEAE

-- Merge record --

Asteraceae (Compositae); Aster family

Fruit

 Cypselae 0.8–1.8 mm; pappi 3.1–5.3 mm. 2n = 64.

-- Merge record --

 Achenes (cypselae) 0.8–1.8 mm; pappi 3.1–5.3 mm. 2n = 64.

Leaves

 Leaf blades broadly oblanceolate (not much reduced in arrays), margins usually serrate.

-- Merge record --

Simple, alternate
Leaf blades broadly oblanceolate (not much reduced in arrays), margins usually serrate.

Plant and Stem Features

Perennials, 30–150(–200) cm, colonial; long-rhizomatous (rhi­zomes usually white, thick, con­torted).  Stems stout to slender, glabrous or hairy in lines.

-- Merge record --

Perennials, 30–150(–200) cm, colonial; long-rhizomatous (rhi­zomes usually white, thick, con­torted).  Stems stout to slender, glabrous or hairy in lines.

Ray Flowers

 Ray florets 16–33; corollas white, laminae 4.1–8.6 mm.

-- Merge record --

 

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References

Flora of North America (website and book).

-- Merge record --

Brouillet, L. , J. C. Semple, G. A. Allen, K. L. Chambers, and S. D. Sundberg.  2006.  Symphyotrichum Nees. In: Flora North American North of Mexico. Edited by Flora North America editorial committee. Vol 20. Oxford University Press, New York and Oxford.

 

Conquist, A. 1980. Vascular Flora of the Southeastern United States, Vol. I, Asteraceae. The University of North Carolina Press, Chapel Hill.

 

Godfrey, R. K. and J. W. Wooten. 1981. Aquatic and Wetland Plants ofSoutheastern United States, Dicotyledons. University of Georgia Press, Athens.

 

USDA, NRCS. 2006. The PLANTS Database (http://plants.usda.gov, 4 December 2006). National Plant Data Center, Baton Rouge, LA 70874-4490 USA.

 Aster lanceolatus Willdenow

-- Merge record --

Aster lanceolatus Willdenow