Weed Science & Agronomy
INRA-Dijon
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Unité de Malherbologie & Agronomie Weed Science & Agronomy INRA-Dijon |
Bayer Code : choju
Synonym(s) of Sc. name: Chondrilla canescens Kar.& Kiv., Chondrilla graminea Bieb. Chondrilla latifolia Meyer, Chondrilla acantholepis Boiss. Chondrilla brevirostris Fischer & C.A.Bieb.
Classification: Compositae, Dicotyledonous
Common name: skeleton weed (Australian)
Synonym(s) of Common name:
Name per country: DE : Binsen-Knorpellattich ; ES : achicoria dulce ; FR : chondrille ; IT : lattugaccio comune ; PT : leituga-branca ; EN : skeleton weed (Australian) ;
Biological type: Biennial
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- Cotyledons elliptic or ovate, more or less stalked.
- Leaves entire, ovate or triangular, irregularly dentate.
- Height: 30-130 cm. Plant glabrous, hispid on its base.
- Stem glabrous with slender and spreading branches, covered with bristle hairs curved in the lower part.
- Basal leaves in rosette ; leaves runcinate or sinuate disappear after flowering. The upper ones linear and entire dentate on each margin, the median vein bristle-haired.
- Flowers yellow sparsely developed in small broad heads, 2 or 4 arranged on very short branches; involucre with outer bracts very small, the lower ones slender and elongate.
- Fruits : achenes brown when mature,finely grooved in their lower part. At the upper part several rows of scales, the upper one with 5 spiny teeth, in the middle there is a beak with the white pappus. Seeds : 8-9 mm. A serious weed in the Australian wheat belt where classical biological control measures have been used.
- Plants eaten as salad when young and good for rabbits. Plant which stimulates the appetite.
- Risk of confusion with Lactuca serriola L.
- Biological type: biennial.
Mistake with: Lactuca serriola
Ecological profile (click on flags):
Rare
Present
Present
Present
Present
