Weed Science & Agronomy
INRA-Dijon
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Unité de Malherbologie & Agronomie Weed Science & Agronomy INRA-Dijon |
Bayer Code : filar
Synonym(s) of Sc. name: Filago arvensis L.
Classification: Compositae, Dicotyledonous
Common name: Least cudweed
Synonym(s) of Common name:
Name per country: DE : Acker-Filzkraut ; FR : gnaphale des champs ; IT : logfia dei campi ; PT : ; EN : Least cudweed ;
Biological type: Annual
- Cotyledons awl -shaped, sessile, about 5 mm long.
- Foliage leaves linear, the whole length almost regularly broad, acuminate, flat, whitish-tomentose ; dense leaf rosette ; new leaf rosettes arise from the axils of the first leaves, therefore plants dense bushy.
- Height: 10-40 cm.
- Stem upright, heavily grey-white tomentose, branched from about the middle, axillary branches usually shorter than main stem.
- Foliage leaves lanceolate, entire, acuminate, 10-20 x 1-4 mm, grey tomentose
- Flowers in broad oval heads (4-5 mm long), 2-7 in loose glomerules ; all the involucral leaves grey tomentose, not carinate; tubular florets inconspicuous yellow.
- Seeds 0,6 mm, with pappus.
- Biological type: annual
- Spread: rare in cultivated fields in Great-Britain.
Ecological profile (click on flags):
Rare
Rare
