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Common Name: Curlycup Gumweed

Species Name: Grindelia squarrosa

Plant Type: Forb

Family Name: Asteraceae, Sunflower Family





Plant Facts  
Origin Native
Duration Annual
Distribution in the U.S. Western half, as far east as the Mississippi River
Distribution in Oklahoma Western third of the state



ID Characteristics

  • Field Identification Characteristics


    • Sticky leaves, stems and flower heads
    • Leaves directly connected to stem; serrated, oblong and wavy
    • Unbranched below and branched above


    • Flowers large and yellow at tips of branches
  • Leaf and Stem Characteristics
    • Leaf Type: Simple
    • Leaf Arrangement: Alternate 
    • Leaf Shape: Serrated
    • Stipules: Absent
  • Floral Characteristics
    • Petal Number: 12-37 or absent
    • Flower Color: Yellow
    • Flower Timing: July-October
    • Fruit Type: Achene



Soil Type Various, shallow soils
Habitat Waste areas, rights-of-way, overgrazed pastures
Successional Stage Early


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