Chamaemelum nobile

Species category

Flower, Weed

Common name

Roman chamomile

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: 1–1.6 mm
  • Width: 0.5–0.7 mm
  • Thickness: 0.4–0.6 mm

Color

Gray to green

Texture

Finely reticulatedReticulated:
Resembling a net or network, especially having veins, fibers, or lines crossing the surface.  

Other structures

Strong, light colored, and longitudinal ribs

Identification notes

Crown of pappusPappus:
Modified calyx in Asteraceae, composed of hairs, bristles, awns, or scales. The pappus-like structure attached to milkweed seeds is termed a coma. 
is light colored.

Noxious weed seed categories

Not listed

AOSA examination list

Not included

Nomenclature

Family

Asteraceae

Valid name

Chamaemelum nobile (L.) All

Synonyms

Anthemis nobilis L.

 Chamaemelum nobile.  Finely reticulated, oblanceolate achene.
Chamaemelum nobile. Finely reticulated, oblanceolate achene.
 Chamaemelum nobile.  Longitudinal ribs are light colored.
Chamaemelum nobile. Longitudinal ribs are light colored.