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Plant Profile  
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Common Name: Maximilian Sunflower

Species Name: Helianthus maximiliani

Plant Type: Forb

Family Name: Asteraceae, Sunflower Family





Plant Facts  
Origin Native
Duration Annual, perennial or biennial
Distribution in the U.S. Central US; Montana and North Dakota to Texas
Distribution in Oklahoma Body of the state; greatest populations in center



ID Characteristics

  • Field Identification Characteristics


    • Can be fairly tall; grayish-green foliage
    • Long, narrow curving leaves; folding upward along midrib
    • Leaves attached directly to stem; usually alternate


    • Flower head stems attached in between stem and leaves
    • Flowers yellow with light brown center
  • Leaf and Stem Characteristics
    • Leaf Type: Simple
    • Leaf Arrangement: Alternate
    • Leaf Shape: Lanceolate
    • Stipules: Absent
  • Floral Characteristics
    • Petal Number: 10-25
    • Flower Color: Yellow with brown or yellow centers
    • Flower Timing: August-October
    • Fruit Type: Achene



Soil Type Various moist soils
Habitat Prairies, drainages, borrow ditches
Successional Stage Late


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