HYPP-A Unité de Malherbologie & Agronomie
Weed Science & Agronomy
INRA-Dijon

Bayer Code : scran

Scientific name: Scleranthus annuus L. subsp. annuus


Synonym(s) of Sc. name:

Classification: Caryophyllaceae, Dicotyledonous

Common name: annualknawel

Synonym(s) of Common name:

Name per country: DE : Einjähriger Knäuel ; FR : scléranthe annuel ; IT : centograni annuo ; PT : erva-dura ; EN : annualknawel ; NL : naaldekervel ; DK : enrig knavel

Biological type: Annual, Biennial


Seed snapshot Seed:

.


Seedling snapshot Seedling:

- Cotyledons very narrow and short (few mm long).

- Leaves entire, elongate, rounded tip.


Adult plant snapshot Adult plant:

- Height: 5-20 cm.

- Stem slender, erect-spreading or erect-ascending.

- Leaves opposite, linear, awl -like, lengthened.

- Flowers greenish in axillary and terminal more or less lax clusters. Calyx glabrous, with a tube not constricted at the apex and attenuate at base. Sepals lanceolate, linear, narrowly margined, spreading or slightly opened after flowering, aristate.

- Risk of confusion with Polycnemum arvense L., Sagina apetala Ard., Spergula arvensis L., Spergularia rubra (L.)JS. & KB. Presl.

- Biological type: annual or biennial.

Mistake with: Polycnemum arvense , Sagina apetala , Spergula arvensis , Spergularia rubra


Ecological profile (click on flags): BeneLux   Present     Germany  Present     Denmark  Present     Spain  Rare     Great Britain  Rare     Italy  Present     Portugal  Present    France   Present

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