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Common Name: Tall Dropseed

Species Name:  Sporobolus compositus

Plant Type: Grasses & Grass-like

Family Name: Poaceae, Grass family



Plant Facts  
Origin Native
Duration Perennial
Season Warm
Distribution in the U.S. Throughout the country other than the extreme southeast and far west
Distribution in Oklahoma Throughout the state



ID Characteristics

  • Field Identification Characteristics


    • Sheath partially surrounding seed head
    • Seed head narrow and vertical
    • Spikelets noted for bird beak appearance at tip


    • Dropping leaves thin, “wiry” leaf tips
  • Leaf and Stem Characteristics
    • Plant Height: 25-200 centimeters
    • Ligule Type: Ciliate membranous
    • Sheath: Glabrous
    • Leaves: Basal and cauline
  • Floral Characteristics
    • Inflorescence Type: Panicles
    • Florets Per Spikelet: 1
    • Glumes: Unequal



Soil Type Clay
Habitat Wet and dry prairies, glades and dry open woods
Successional Stage Mid to late


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