Weed Science & Agronomy
INRA-Dijon
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Unité de Malherbologie & Agronomie Weed Science & Agronomy INRA-Dijon |
Bayer Code : pichi
Synonym(s) of Sc. name:
Classification: Compositae, Dicotyledonous
Common name: hawkweed oxtongue
Synonym(s) of Common name:
Name per country: DE : Gemeines Bitterkraut ; ES : parracas ; FR : picris fausse-épervière ; IT : aspraggine comune ; PT : rapa-saias ; EN : hawkweed oxtongue ;
Biological type: Biennial
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- Cotyledons lengthened, spoon-like.
- Leaves entire, ovate -deltoid, irregularly dentate.
- Height: 30-140 cm. Plant very variable in forms. Budding from roots.
- Stem erect, furrowed, branched, stiffly hairy.
- Leaves basal in rosette. Leaves lanceolate, toothed, short-stalked below, sessile and slightly amplexicaul above, covered with short hairs often forked at the apex into hooked branches (rough and hooking), dull-green.
- Flowers yellow, ligulate, in heads arranged in corymb -like. Involucral bracts, narrow, not bristly but somewhat hooked.
- Fruit : achene reddish-brown, 3-5 mm long, with fine interrupted transverse wrinkles; beak very short with a deciduous pappus of feathery hairs.
- Biological type: biennial.
Ecological profile (click on flags):
Rare
Present
Present
Present
