Weed Science & Agronomy
INRA-Dijon
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Unité de Malherbologie & Agronomie Weed Science & Agronomy INRA-Dijon |
Bayer Code : erian
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
- Cotyledons : ovate -rounded with small petiole.
- Leaves : at rosette, rounded, petiolate, covered with whitish hairs; successive leaves obovate, progressively weakened in the petiole.
- 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):
Present
Present
