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Echinacea paradoxa

Species category

Flower, Weed

Common name

Bush's purple 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

Truncate

Size

  • Length 4.5–5 mm
  • Width 3–3.5 mm
  • Thickness 3–3.5 mm

Color

White or brown base; black or brown top.

Texture

Rough

Other structures

Strong longitudinal ribs

Identification notes

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 irregular.

Noxious weed seed categories

Not listed

AOSA examination list

Not included

Nomenclature

Family

Asteraceae

Valid name

Echinacea paradoxa (J.B.S. Norton) Britton

Echinacea paradoxa. Achenes with a white or brown base and a black or brown top.
Echinacea paradoxa. Achenes with a white or brown base and a black or brown top.