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

Bayer Code : erian

Scientific name: Erigeron annuus (L.) Persoon


Synonym(s) of Sc. name: Stenactis annua Nees.

Classification: Compositae, Dicotyledonous

Common name: annual fleabane

Synonym(s) of Common name:

Name per country: DE : Zweijähriger Feinstrahl ; ES : erigeron anual ; FR : aster annuel ; IT : céspica annua ; EN : sweet scabious (GB), EN : annual fleabane (U.S.A.) ;

Biological type: Annual


Seedling snapshot Seedling:

- Cotyledons : ovate -rounded with small petiole.

- Leaves : at rosette, rounded, petiolate, covered with whitish hairs; successive leaves obovate, progressively weakened in the petiole.


Adult plant snapshotAdult plant snapshot Adult plant:

- Height : 30-150 cm.

- Stem erect, branched at the inflorescence and hispid on patent hairs.

- Leaves : 5-7x1-1.5 cm, alternate and hispid; the lower lanceolate -spatulate, the upper lanceolate, sessile and progressively shortened, all with 3-5 teeth for side.

- Inflorescence: capitula 1.5 cm in diam. with champagne glass-like involucre ; disc-florets yellow; ligules white or pink about 1 cm long.

- Fruit : achenes with pappus formed by scales in two rows.

- Biological type : annual.


Ecological profile (click on flags): Spain   Present     Italy  Present    

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