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

Oblanceolate; slightly curved

Size

• Length 6–11 mm
• Width 1–2 mm
• Thickness 1–2 mm

Color

Black with brown mottling

Texture

Rough; longitudinal ribs and grooves.

Other structures

Terminal ends are light brown

Family

Asteraceae

Valid name

Cosmos bipinnatus Cav.