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

Bayer Code : shrar

Scientific name: Sherardia arvensis L.

Synonym(s) of Sc. name:

Classification: Rubiaceae, Dicotyledonous

Common name: field madder

Synonym(s) of Common name:

Name per country: DE : Ackerröte ; ES : revoli ; FR : shérardie ; IT : toccamano ; PT : geanza ; EN : field madder ; NL : blauwwalstro ; DK : blåst jerne

Biological type: Annual

Seed snapshot Seed:

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Seedling snapshot Seedling:

- Cotyledons lengthened, spoon-like.

- Leaves entire, linear, acute apex.

Adult plant snapshotAdult plant snapshot Adult plant:

- Height: 20-40 cm. Plant green, hairy, with a slender root.

- Stems 4-angled, numerous, prostrate, spreading, slender, stiffly hairy, scabrid.

- Leaves 6 in whorls, ovate -lanceolate, mucronate, very scabrid.

- Flower pink-lilac to purplish, in small terminal heads enclosed in an involucre much longer than the adnate basal bracts. Calyx with 6 deep awl -like teeth, erect, accrescent ; corolla funnel-shaped with a lengthened spreading 4-lobed tube ; 4 prominent stamens.

- Fruits dry obovoid, shortly rough, 2 adnate carpels each one crowned by 3 persistent calyx-teeth.

- Plant of which roots have dyeing red property.

- Biological type: annual.

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

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