Weed Science & Agronomy
INRA-Dijon
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Unité de Malherbologie & Agronomie Weed Science & Agronomy INRA-Dijon |
Bayer Code : teenu
Synonym(s) of Sc. name:
Classification: Cruciferae, Dicotyledonous
Common name: shepherd's cress
Synonym(s) of Common name:
Name per country: DE : Bauernsenf ; ES : pan y queso ; FR : teesdalie à tige nue ; IT : teesdalia ; PT : ; EN : shepherd's cress ;
Biological type: Annual
- Cotyledons roundish spoon-shaped, very small (up to 2 mm of diameter), with a long petiole (3-4 mm long).
- The first foliage leaves are similar to the cotyledons (long petiole with a small round leaf blade), following leaves lobed to pinnate, all in rosettes.
- Height: 5-20 cm.
- Stem upright, glabrous, usually leafless.
- Foliage leaves pinnately lobed to pinnatifid, in a rosette, up to 5 cm long.
- Flowers white, initially in small cymes, later in false spikes ; petals slender- elliptical, outer ones bigger than inner ones.
- Fruit : silicula, broad-elliptical, narrowly winged, flat, 3-4 mm.
- Seed broad-elliptical to round, yellow to red-brown, 1-1,2 mm.
- Acidophil, sandloving, indicator for nutrient deficiency.
- Biological type: annual
- Spread: decreasing in Great-Britain because of the increasing nutrient supply on the fields.
Ecological profile (click on flags):
Rare
Rare
Present
