Cerastium biebersteinii

Species category

Flower, Weed

Common name

Boreal chickweed, snow-in-summer

Diagnostic characters

Planting unit

True seedTrue seed:
A mature fertilized ovule consisting of an embryo, with or without and external food reserve (e.g., endosperm) enclosed by the testa.

Shape

Top view—D-shaped

Cross-section—wedged

Size

  • Length: 1–1.5 mm
  • Width: 1–1.5 mm
  • Thickness: 0.2–0.5 mm

Color

Brown

Texture

Extreme reticulations

Other structures

RadicleRadicle:
The rudimentary root of the embryo, developing into the primary root after emergence from the seed coat.
and cotyledonCotyledon:
The modified storage leaf or pair of leaves of an embryo and seedling (see primary leaf).
lobes meet at the margin.

Identification notes

StipplesStipples:
Numerous small dots or specks.
in reticulationReticulated:
Resembling a net or network, especially having veins, fibers, or lines crossing the surface.  
are often arranged in rows.

Noxious weed seed categories

Not listed

AOSA examination list

Not included

More information

For more information, see ISMA fact sheet, Cerastium spp.

Nomenclature

Family

Caryophyllaceae

Valid name

Cerastium biebersteinii DC.

 Cerastium biebersteinii.  Seeds with stipples in reticulation are often arranged in rows.
Cerastium biebersteinii. Seeds with stipples in reticulation are often arranged in rows.