Bitterweed ( Helenium amarum )


New Hanover Cooperative Extension
Al Hight, Director

Pronunciation key

( bitẽr-wēd′ )

bit•ter•weed

n.

A kind of ragweed.

Based on comparative factors at the usflowers database
Bitterweed, Helenium amarum

this species appears to be Helenium amarum.

Taxonomic Hierarchy
Bitterweed, Helenium amarum
Kingdom Plantae – Vegetal, plants
Subkingdom Viridaeplantae – green plants
Infrakingdom Streptophyta – land plants
Division Tracheophyta – vascular plants, tracheophytes
Subdivision Spermatophytina – spermatophytes, seed plants
Infradivision Angiospermae – flowering plants, angiosperms
Class Magnoliopsida
Superorder Asteranae
Order Asterales
Family Asteraceae – sunflowers
Genus Helenium L. – sneezeweed
Species Helenium amarum (Raf.) H. Rock – yellowdicks, bitter sneezeweed
Direct Children:
Variety Helenium amarum var. amarum (Raf.) H. Rock – yellowdicks
Variety Helenium amarum var. badium (A. Gray ex S. Watson) Waterf. – yellowdicks, basin sneezeweed
Helenium amarum, (Raf.) H. Rock, Taxonomic Serial No.: 36007

 

Helenium amarum, Bitterweed
Helenium amarum, Bitterweed
The weed with a long brown stem seen in this photo is a "buckhorn plantain".
Helenium amarum, Bitterweed
Helenium amarum, Bitterweed
Helenium amarum, Bitterweed
Helenium amarum, Bitterweed
Helenium amarum, Bitterweed
Helenium amarum, Bitterweed
Helenium amarum, Bitterweed
Helenium amarum, Bitterweed
Helenium amarum, Bitterweed

 

Helenium amarum, Bitterweed Helenium amarum, Bitterweed
Helenium amarum, BitterweedHelenium amarum, Bitterweed
Helenium amarum, Bitterweed

References

  • Webster's New World Dictionary of the American Language (College Edition) ©1955
  • uswildflowers.com, Bitterweed, Bitter Sneezeweed, Yellowdicks - Helenium amarum
  • Helenium amarum, (Raf.) H. Rock, Taxonomic Serial No.: 36007
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