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Plant Profile  
FYUSE 3D Image

Common Name: Prairie Acacia

Other Names: Fern Acacia

Species Name: Acacia angustissima

Plant Type: Legume

Family Name: Mimosaceae, Mimosa Family






Plant Facts  
Origin Native
Duration Perennial
Distribution in the U.S. Southern Kansas, Southwest Missouri, Oklahoma, Texas and Florida
Distribution in Oklahoma Throughout the state



ID Characteristics

  • Field Identification Characteristics


    • Pinnately compound leaves with numerous leaflets
    • Leaflets fold when touched
    • Lacks hair-like gland that D. illinoensis processes


    • Flowers yellow or salmon fuzzy spheres
  • Leaf and Stem Characteristics
    • Leaf Type: Compound, 2-pinnately
    • Leaf Arrangement: Alternate 
    • Leaf Shape: Linear or oblong
    • Stipules: Present
  • Floral Characteristics
    • Petal Number: 5, unfused, or fused only at the base
    • Flower Color: White or yellowish-white
    • Flower Timing: June-October
    • Fruit Type: Legumes



Soil Type Well-drained sand, loam, clay
Habitat Dry, rocky sites of prairies, open woodlands and disturbed soils of roadsides
Successional Stage Late


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