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Late Purple Aster (Spreading Aster)
Symphyotrichum patens (Aster patens)

Late purple aster looks similar to smooth aster (Aster laevis) -- they both have purple rays and clasping leaves. Distinguish them by their stems -- late purple aster has a rough, hairy stem; smooth aster has a smooth stem with a whitish coating.

• Family: Aster (Asteraceae)
• Habitat: dry open woods, dry fields
• Height: 1-3 feet
• Flower size: flowerheads 1 inch across
• Flower color: deep blue-purple rays around a yellow disk
• Flowering time: August to October
• Origin: native

next blue/purple flower
next in aster family
Symphyotrichum patens
Symphyotrichum patens
Note how the base of the leaf extends around the stem, nearly encircling it. This type of leaf base is termed "clasping."
Symphyotrichum patens

Last updated November 13, 2005. © 2005 Connecticut Botanical Society. All rights reserved.