Connecticut Plants
Late Purple Aster (Spreading Aster)
Symphyotrichum patens (Ait.) Nesom

Late purple aster looks similar to smooth aster -- 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.

  • Synonyms: Aster patens
  • 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
Symphyotrichum patens (Ait.) Nesom
Symphyotrichum patens (Ait.) Nesom

Note how the base of the leaf extends around the stem, nearly encircling it. This type of leaf base is termed "clasping."

Symphyotrichum patens (Ait.) Nesom