Acamptopappus sphaerocephalus

Species category

Flower

Common name

rayless goldenhead

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

Conical

Size

  • Length: 4 mm
  • Width: 3–4 mm
  • Thickness: 3–4 mm

Color

White

Texture

Finely pubescentPubescent:
Having 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. 
present.

Identification notes

Seed hairy.

Noxious weed seed categories

Not listed

AOSA examination list

Not included

Nomenclature

Family

Asteraceae

Valid name

Acamptopappus sphaerocephalus (Harv. and A. Gray ex A. Gray) A. Gray

 Acamptopappus sphaerocephalus.  Pappus and fine pubescence.
Acamptopappus sphaerocephalus. Pappus and fine pubescence.