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Extension

Common Name: Kochia
Other Names: Mexican Fireweed
Species Name: Kochia scoparia
Plant Type: Broadleafs/Herbaceous
Family Name: Chenopodiaceae

 
Plant Facts 
OriginIntroduced, Asia
DurationAnnual
SeasonWarm
Distribution in the U.S.Common throughout the Great Plains
Distribution in OklahomaFound in most parts of the state

ID Characteristics

  • Field Identification Characteristics
    • Leaves are narrowly ovate, flat, 1-5 prominent veins; margins entire, fringed with hairs; surfaces nearly without hair to pubescent; short-petioled
    • Stems are erect, highly branched, turning red with age, surfaces without hair to pubescent
    • Inflorescence is a spike and is axillary and terminal
    • Seed is very small in size, oval in shape, and brown to black in color
  • Leaf and Stem Characteristics
    • Leaf Type: Simple
    • Leaf Arrangement: Alternate
    • Leaf Shape: Linear
    • Stipules: Absent
  • Floral Characteristics
    • Petal Number: 5, winged; paired in leaf-like bracts, enveloped by tufts of hair
    • Flower Color: Green
    • Flower Timing: July-October
    • Fruit Type: Utricle, globose, calyx persistent; seeds 1
    • Inflorescence: Spike, axillary and terminal
 
Habitat/Ecology 
HabitatCultivated fields, gardens, roadsides, ditchbanks and waste areas
Successional Stage