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Boltonia decurrens

Boltonia decurrens (Torr. & A. Gray) Alph. Wood

Boltonia asteroides (L.) L’Hér. var. decurrens (Torr. & A. Gray) Fernald

Boltonia latisquama A. Gray var. decurrens (Torr. & A. Gray) Fernald & Grisc.

Winged False 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
GenusBoltoniaFor James Bolton, English botanist of the 18th century
SpeciesdecurrensWith the leaf margins running gradually into the stem, that is, having a wing-like or ridge-like extension beyond the actual or apparent point of attachment, like a leaf base that seems to continue down the stem

About plant names...

Decurrent false aster is native to the floodplains of the Illinois and Mississippi rivers, and now rare due to habitat loss. The plants are adapted to periodic flooding, capable of growing when largely submerged.

Identification: Plants form dense, bushlike clusters up to 5' (1.5 m) in height. Leaves decrease in width until they form wings on their stems (“decurrent”). They are up to 6" (15 cm) long, and linear or lanceolate. Like other members of the aster family, each flower is a composite flower, composed of a central yellow disc with 230-400 tiny disc florets, surrounded by 45-60 white or pale purple rays. Flowers are up to 1¾" (5 cm) across, occurring in dense panicles or corymbs. They appear from August to September.

Online References:

Boltonia decurrens on Wikipedia

Boltonia decurrens at the Center for Plant Conversation

Boltonia decurrens on eFloras

Boltonia decurrens (Winged False Aster)

8/31/2013 · Lewis Ginter Botanical Garden, Richmond, VA

Boltonia decurrens description by Thomas H. Kent, last updated 30 Oct 2013.

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Boltonia decurrens (Winged False Aster)

8/31/2013 · Lewis Ginter Botanical Garden, Richmond, VA
≈ 4 × 2½' (1.2 × 0.8 m)

Boltonia decurrens (Winged False Aster)

8/31/2013 · Lewis Ginter Botanical Garden, Richmond, VA
≈ 15 × 10" (37 × 25 cm)

Range: Zones 4-8:

About this map...