Verbesina encelioides

Species category

Weed

Common name

golden crownbeard

Diagnostic characters

Planting unit

AcheneAchene:
A dry, hard, one-chambered, one-seeded indehiscent fruit, as in buckwheat (Fagopyrum) or sunflower (Helianthus). The fruit wall is not united with the seed coat.

Shape

ObovateObovate:
Inverted egg shaped with apical end the broadest.

Size

  • Length 4.5–5 mm
  • Width 3.5–4 mm
  • Thickness 1–1.2 mm

Color

Black with yellow wings

Texture

Center is hairy with central longitudinal rib

Other structures

Broad and hairy marginal wings

Identification notes

PappusPappus:
Modified calyx in Asteraceae, composed of hairs, bristles, awns, or scales. The pappus-like structure attached to milkweed seeds is termed a coma. 
crown has two elongated opposing bristles.

Noxious weed seed categories

Not listed

AOSA examination list

Not included

Nomenclature

Family

Asteraceae

Valid name

Verbesina encelioides (Cav.) Benth. & Hook. f. ex A. Gray

 Verbesina encelioides.  Achenes are broad and have hairy marginal wings.
Verbesina encelioides. Achenes are broad and have hairy marginal wings.
 Verbesina encelioides.  Cypselae with partial head (top center. Achenes are broad and have hairy marginal wings. Photo Lindsey Seastone, USDA-APHIS-PPQ.
Verbesina encelioides. Cypselae with partial head (top center. Achenes are broad and have hairy marginal wings. Photo Lindsey Seastone, USDA-APHIS-PPQ.