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 4–5.7 mm
• Width 1–1.2 mm
• Thickness 0.8–1 mm

Color

Black

Texture

GranularGranular:
Resembling or consisting of small grains or particles.

Other structures

Extensive feather-like pappusPappus:
Modified calyx in Asteraceae, composed of hairs, bristles, awns, or scales. The pappus-like structure attached to milkweed seeds is termed a coma. 
when not broken

Family

Asteraceae

Valid name

Liatris pycnostachy Michx.