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Extension

Plant Profile 
FYUSE 3d Image

Common Name: Western Ironweed
Other Names: Baldwin's Ironweed
Species Name: Vernonia baldwinii
Plant Type: Forb
Family Name: Asteraceae, Sunflower Family

Plant Facts 
OriginNative
DurationAnnual, perennial or biennial
Distribution in the U.S.Midwest; Illinois to Arkansas west to Colorado and Texas
Distribution in OklahomaBody of the state

ID Characteristics

  • Field Identification Characteristics

    Vegetative

    • Erect stems unbranched below and branched above
    • Numerous leaves with finely serrated edges attached directly to stem; alternate 
    • Named for its very hard stem; Can have purplish hue

    Floral
    Numerous medium-sized pink to purple flower heads

  • Leaf and Stem Characteristics
    • Leaf Type: Simple
    • Leaf Arrangement: Alternate
    • Leaf Shape: Lanceolate
    • Stipules: Absent
  • Floral Characteristics
    • Petal Number: 17-34
    • Flower Color: Purple
    • Flower Timing: July-September
    • Fruit Type: Achene
Habitat/Ecology 
Soil TypeDeep clay and loamy soils
HabitatPrairie, introduced pasture, recently logged sites and heavily grazed areas
Successional StageMid to late, but generally always present