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Ericameria nauseosa

Species category

Revegetation or Rangeland, Shrub or Tree

Common name

rubber rabbitbrush

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

Linear

Size

  • Length 4 mm
  • Width 0.5 mm
  • Thickness 0.5 mm

Color

Dark gray

Texture

Silky hairs

Other structures

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

Identification notes

Long, narrow achenesAchene:
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.
 covered with silky pubescence. Color dark brown to gray. PappusPappus:
Modified calyx in Asteraceae, composed of hairs, bristles, awns, or scales. The pappus-like structure attached to milkweed seeds is termed a coma. 
 spreading and as long as the 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.
.

Noxious weed seed categories

Not listed

AOSA examination list

Not included

Nomenclature

Family

Asteraceae

Valid name

Ericameria nauseosa (Pall. ex Pursh) G.L. Nesom & Baird

Ericameria nauseosa. Achenes are covered with silky pubescence, and the pappus spreads as long as the achene. 
Ericameria nauseosa. Achenes are covered with silky pubescence, and the pappus spreads as long as the achene.