Weed Science & Agronomy
INRA-Dijon
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Unité de Malherbologie & Agronomie Weed Science & Agronomy INRA-Dijon |
Bayer Code : heltu
Synonym(s) of Sc. name:
Classification: Compositae, Dicotyledonous
Common name: jerusalem artichoke
Synonym(s) of Common name:
Name per country: DE : Tobinambur ; ES : pataca ;FR : topinambourg ; IT : topinambur ; PT : girassol-batateiro ; EN : jerusalem artichoke ;
Biological type: Perennial
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- Height : 100-250 cm.
- Stem : erect and hispid above; rhizome 3 up to 5 cm in diameter, tuberous, fusiform, broadened.
- Leaves : petiolate and hispid; the upper alternate ; blade 8-15x5-8 cm, dark green above, ovate -lanceolate, acuminate, denticulate, petiole 2-4 cm.
- Inflorescence : capitulum 4-5 cm in diameter, usually not all of the flowers belonging to the same capitulum can bear fruit ; 12-15 florets 20-25x6-9 mm, ligulate with bright yellow ligule.
- Fruit : achenes 5-6 mm, glabrous or hairy.
- Biological type : perennial.
Ecological profile (click on flags):
Rare
Present
