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

Size

• Length: 7–11 mm
• Width: 1–1.2 mm
• Thickness: 1–1.2 mm

Color

Black

Texture

Rough

Other structures

Long united scales form the 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.

Family

Asteraceae

Valid name

Tagetes patula L.

Synonyms

Tagetes corymbosa Sweet
Tagetes remotiflora Kunze
Tagetes signata Bartling
Tagetes tenuifolia Millsp.