Weed Science & Agronomy
INRA-Dijon
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Unité de Malherbologie & Agronomie Weed Science & Agronomy INRA-Dijon |
Bayer Code : senve
Synonym(s) of Sc. name: Senecio vernalis Waldst. & Kitaibel, Senecio euxinius Minder
Classification: Compositae, Dicotyledonous
Common name: spring groundsel
Synonym(s) of Common name:
Name per country: DE : Frühlings-Kreuzkraut ; FR : séneçon de printemps ; IT : senecio di pmavera ; PT : ; EN : spring groundsel ;
Biological type: Annual
- Cotyledons oblong -elliptical, tapered at the base.
- Foliage leaves undivided, ovate, petiolate, coarsly dentate, teeth triangular, usually cobwebby woolly-pubescent.
- Height: 15-50 cm.
- Stem upright, with erect standing branches.
- Foliage leaves with strongly varying form; basal leaves petiolate and dentate, later irregularly lobed to pinnatifid, stem leaves sessile or amplexicaul ; alternate, initially heavily woolly-pubescent on both surfaces, later becoming glabrous.
- Flower : heads yellow, 20-30 mm broad, in contrast to Senecio vulgaris with horizontal spreading, distinctly yellow ray flowers (about 10 mm long and 2 mm broad).
- Fruit rod-like, lengthwise ribbed, yellow to light brown, with silver-white hair and a white pappus.
- Biological type: annual
- Spread: The plant comes presumably from Central-or Southern Russia and has spread
only in the course of last century to Central-Europe; is spreading towards the West and North.
Ecological profile (click on flags):
Present
Rare
