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Symphyotrichum lanceolatum var. hesperium

Symphyotrichum lanceolatum (Willd.) G.L. Nesom var. hesperium (A. Gray) G.L. Nesom

White Panicle Aster

Asteraceae (Aster Family)

Synonym(s): Aster hesperius, Aster hesperius var. laetevirens, Aster hesperius var. wootonii, Aster laetevirens, Aster lanceolatus ssp. hesperius, Aster osterhoutii, Aster wootonii, Symphyotrichum hesperium

USDA Symbol: SYLAH6

USDA Native Status: L48 (N), CAN (N)

This taxon appears as Symphyotrichum lanceolatum ssp. hesperium var. hesperium on the USDA PLANTS Database website.

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Plant Characteristics

Duration: Perennial
Habit: Herb
Size Notes: Up to about 6 feet tall.
Leaf: Green
Fruit: Fruit is a cypsela (pl. cypselae). Though technically incorrect, the fruit is often referred to as an achene.

Bloom Information

Bloom Color: White , Yellow , Purple , Violet
Bloom Time: Jul , Aug , Sep , Oct
Bloom Notes: Ray flowers usually purplish blue/violet, sometimes white. Disk flowers yellow, fading to purple.

Distribution

USA: AZ , CA , CO , IA , ID , KS , MI , MN , MO , MT , ND , NE , NM , NV , OK , OR , SD , TX , UT , WI , WY
Canada: AB , BC , MB , NT , ON , QC , SK

Growing Conditions

Water Use: High
Light Requirement: Part Shade
CaCO3 Tolerance: Medium

Benefit

Conspicuous Flowers: yes
Attracts: Butterflies

Value to Beneficial Insects

Special Value to Native Bees

This information was provided by the Pollinator Program at The Xerces Society for Invertebrate Conservation.

Web Reference

Webref 30 - Calflora (2018) Calflora
Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Symphyotrichum lanceolatum var. hesperium in USDA Plants
FNA: Find Symphyotrichum lanceolatum var. hesperium in the Flora of North America (if available)
Google: Search Google for Symphyotrichum lanceolatum var. hesperium

Metadata

Record Modified: 2023-07-24
Research By: TWC Staff

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