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: 3–4.5 mm
• Width: 0.7–1 mm
• Thickness: 0.7–1 mm

Color

Light brown

Texture

Thin longitudinal ribs and a surface covered with short hairs.

Other structures

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

Family

Asteraceae

Valid name

Chrysothamnus viscidiflorus (Hook.) Nutt.