Dracopis amplexicaulis

Species category

Flower, Weed

Common name

clasping coneflower

Diagnostic characters

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 2.4–3 mm 
  • Width 0.6–1 mm 
  • Thickness 0.6–1 mm 

Color

Black

Texture

Fine transverseTransverse:
Set crosswise, crossing or at right angles.
ribs

Other structures

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

Identification notes

Longitudinal lines passing through transverseTransverse:
Set crosswise, crossing or at right angles.
ribs often present.

Noxious weed seed categories

Not listed

AOSA examination list

Not included

Nomenclature

Family

Asteraceae

Valid name

Dracopis amplexicaulis (Vahl) Cass.

Synonyms

Rudbeckia amplexicaulis Vahl

 Dracopis amplexicaulis.  Achenes with transverse ribs.
Dracopis amplexicaulis. Achenes with transverse ribs.
 Dracopis amplexicaulis.  Achenes with the pappus ring on the apical end.
Dracopis amplexicaulis. Achenes with the pappus ring on the apical end.