Verbesina alternifolia

Verbesina alternifolia
Wingstem in cultivation

Secure  (NatureServe)[1]
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Verbesina
Species:
V. alternifolia
Binomial name
Verbesina alternifolia
Britton ex Kearney (L.)
Synonyms
  • Coreopsis alternifolia L.
  • Actinomeris alternifolia (L.) DC
  • Coreopsis procera Dryand. ex Aiton
  • Ridan alternifolia (L.) Britton

Verbesina alternifolia is a species of flowering plant in the family Asteraceae. It is commonly known as wingstem[2] or yellow ironweed.[3] It is native to North America.[2]

The name "wingstem" refers to the petioles of the leaves, which run down the stem and form raised ridges or "wings" along it.[4] The plant grows 3-8 feet tall with an unbranched stem until reaching the inflorescence at the very top.[5] Its yellow flower heads, which bloom in late summer through early fall, are 1-2 inches wide and consist of up to 10 bright yellow ray florets that are angled downward, each bearing a notch at the end, as well as a spherical cluster of tubular yellow disk florets in the center.[6]

  1. ^ NatureServe (1 September 2023). "Verbesina alternifolia". NatureServe Network Biodiversity Location Data accessed through NatureServe Explorer. Arlington, Virginia: NatureServe. Retrieved 20 September 2023.
  2. ^ a b Cite error: The named reference usda was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference mobotpf was invoked but never defined (see the help page).
  4. ^ "Us Wildflower- Wingstem, Yellow Ironweed". uswildflowers.com.
  5. ^ Hilty, John (2020). "Wingstem (Verbesina alternifolia)". Illinois Wildflowers. Retrieved 21 September 2023.
  6. ^ "Know Your Natives- Yellow wingstem". anps.org. Arkansas Native Plant Society. 13 November 2015.