Midewin National Tallgrass Prairie
  • Home
  • Trailheads
  • Downloads
  • Privacy Policy
  • Return to Portal
  • Stiff White Aster

    SCIENTIFIC NAME: Oligoneuron album (Aster ptarmicoides)


    COMMON NAMES: Stiff White Aster, White Goldenrod, Prairie Goldenrod, Stiff Aster, Stiff Goldenrod , White Upland Aster, White Upland Goldenrod, & White Flat-topped Goldenrod.

    BLOOM TIME: June, July, Aug, Sept

    PLANT PROFILE:

    • Slender branching 2 ft. plants with narrow leaves.
    • White petal flowers form an open flattop cluster with each head ¾ in.
    • Likes prairies but is only occasional in north half of Illinois absent elsewhere.
    • Now considered to be more closely related to goldenrods than asters.

    INSECT/ANIMAL INTERACTIONS:

    • Little known about floral-faunal relationship.
    • The rare Karner's Blue butterfly & rare Poweshiek Skipperling skipper visit the flowerhead.
    • The common Pennsylvania Soldier Beetle also have been seen on flowerhead.
    • The butterfly & skipper feed on nectar.
    • The soldier beetle probably feeds on pollen.
    • Many other insects undoubtedly visit its flowerheads.