Weed Science & Agronomy
INRA-Dijon
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Unité de Malherbologie & Agronomie Weed Science & Agronomy INRA-Dijon |
Bayer Code : knaar
Synonym(s) of Sc. name:
Classification: Dipsacaceae, Dicotyledonous
Common name: field scabious
Synonym(s) of Common name:
Name per country: DE : Acker - Witwenblume ; ES : escabiosa ; FR : knautie des champs ; IT : ambretta comune ; PT : erva-dos-prados ; EN : field scabious ; NL : beemdkroon ;
Biological type: Perennial
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- Cotyledons elongate, spoonlike.
- Leaves entire, elliptic to ovate, entire-margined.
- Height: 20-80 cm. Plant very variable.
- Stem with basal tufts of hairs, glabrous above, few-branched, erect.
- Leaves: lower in rosette, entire, toothed or pinnatifid with lanceolate segments. Middle leaves opposite semi-amplexicaule, grey-green, dull, pinnatisect.
- Flowers pink or lilac, 50-80 in head 20-40 mm broad. Involucre of 12-16 lanceolate bracts. Involucel hairy with 4-angled. Calyx surrounded with 8 erect teeth. Corolla unequally 4-lobed.
- Fruit : achene 5-6 mm, with dense upwardly directed hairs.
- Plant ornamental. Leaves and flowers depurative, bitter, detergent,expectorant and astringent.Rare in crops.
- Biological type: perennial.
Ecological profile (click on flags):
Present
Present
Rare
