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Symphyotrichum lanceolatum

Symphyotrichum lanceolatum (Willd.) G.L. Nesom

 

Panicled Aster, Eastern Lined Aster, Tall White Aster, Lance-leaf Aster, Narrow-leaf Michaelmas Daisy, White-panicle Aster

KingdomPlantaePlants, but not fungi, lichens, or algae
SubkingdomTracheobiontaVascular plants—plants with a “circulatory system” for delivering water and nutrients
DivisionMagnoliophytaFlowering plants, also known as angiosperms
ClassMagnoliopsidaDicotyledons—plants with two initial seed leaves
SubclassAsteridaeA large class that encompasses asters
OrderAsteralesFlowering plants with a central disk flower and surrounding petals, like daisies
FamilyAsteraceaeThe aster family, which also includes daisies and sunflowers; from the Greek ἀστήρ, “star,” for the star-shaped flowers
GenusSymphyotrichumFrom Greek symphysis, “borne together or growing together, coalescing,” and trichinos, “hair, a single hair”
Specieslanceolatum“Lance-shaped,” for the leaves

About plant names...

Panicled aster is a widespread North American native.

Identification: Plants are 12-59" (30-150 cm) in height, rarely up to 6½' (2 m). They consist of a single main stem that branches in the flowering region. The stem may be hairy or hairless. Leaves are ⅜-3" (1-8 cm) × ⅛-¾" (5-20 mm), with serrated or scalloped edges, oblanceolate or lanceolate. Dead leaves tend to curl a lot. Flowerheads are panicles that may be heavily branched and densely or quite sparsely flowered. Flowers are white to pinkish or pale blue-violet, ⅜-¾" (1-2 cm) across, with 16-50 rays and usually 20-40 tiny disc florets. Central disks are yellow, aging to purple. Maybe it is a coincidence, but the petals (rays) seem less orderly than with many asters.

See our aster comparison table here. Or check Arieh Tel’s well-researched and informative aster comparison site.

Online References:

Symphyotrichum lanceolatum on michiganflora.net

Symphyotrichum lanceolatum on Ontario Wildflowers

Symphyotrichum lanceolatum on the New England Wildflower Society’s GoBotany site

Symphyotrichum lanceolatum on the Connecticut Botanical Society's Connecticut wildflowers site

Symphyotrichum lanceolatum on eFloras

References:

Clemants, Steven; Gracie, Carol, Wildflowers in the Field and Forest, Oxford University Press, 2006, p. 22

Symphyotrichum lanceolatum (Panicled Aster, Eastern Lined Aster, Tall White Aster, Lance-leaf Aster, Narrow-leaf Michaelmas Daisy, White-panicle Aster)

9/27/2013 · Gordon and Kathy’s, Prospect, ME
≈ 5 × 8" (12 × 19 cm) ID is uncertain

Symphyotrichum lanceolatum description by Thomas H. Kent, last updated 4 Oct 2013.

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Symphyotrichum lanceolatum (Panicled Aster, Eastern Lined Aster, Tall White Aster, Lance-leaf Aster, Narrow-leaf Michaelmas Daisy, White-panicle Aster)

That’s a monarch butterfly (Danaus plexippus). · 10/4/2008 · Parker River National Wildlife Refuge, Plum Island, MA
≈ 6 × 8" (16 × 20 cm) ID is uncertain

Symphyotrichum lanceolatum (Panicled Aster, Eastern Lined Aster, Tall White Aster, Lance-leaf Aster, Narrow-leaf Michaelmas Daisy, White-panicle Aster)

9/27/2013 · Gordon and Kathy’s, Prospect, ME
≈ 8 × 5" (19 × 13 cm) ID is uncertain

Symphyotrichum lanceolatum (Panicled Aster, Eastern Lined Aster, Tall White Aster, Lance-leaf Aster, Narrow-leaf Michaelmas Daisy, White-panicle Aster)

9/27/2013 · Gordon and Kathy’s, Prospect, ME
≈ 5 × 5" (13 × 12 cm) ID is uncertain

Range:

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