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 3–3.1 mm
• Width 0.8–0.9 mm
• Thickness 0.8–0.9 mm

Color

Black

Texture

AchenesAchene:
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.
covered with appressedAppressed:
Pressed close or lying flat against something.
hairs

Other structures

Dense pappusPappus:
Modified calyx in Asteraceae, composed of hairs, bristles, awns, or scales. The pappus-like structure attached to milkweed seeds is termed a coma. 
at apicalApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.
end

Family

Asteraceae

Valid name

Solidago altissima L.

Synonyms

Solidago altissima L. var. altissima
Solidago altissima L. var. pluricephala M.C. Johnst.
Solidago altissima L. var. procera (Aiton) Fernald
Solidago canadensis L. var. scabra Torr. & A. Gray 
Solidago hirsutissima Mill.
 Solidago lunellii Rydb.