Weed Science & Agronomy
INRA-Dijon
|
Unité de Malherbologie & Agronomie Weed Science & Agronomy INRA-Dijon |
Bayer Code : iunbu
Synonym(s) of Sc. name:
Classification: Juncaceae, Monocotyledonous
Common name: toad rush
Synonym(s) of Common name:
Name per country: DE : Kröten-Binse ; ES : junco de sapo ; FR : jonc des crapauds ; IT : giunco annuale ; PT : junco-dos-sapos ; EN : toad rush ; NL : Greppelrus ; DK :
Biological type: Annual
.
- Shoot rolled, leaf sheath terete.
- Leaf blade 20-50 times longer than broad, leaf glabrous.
- No ligule, absent auricles.
- Height: 5-30 cm. Plant glabrous.
- Stem terete, leafy up to half-height, less than 1 mm broad.
- Leaves lower in rosette, all similar, linear, chanelled, progressively narrowed into a slender point. First leaf very short often with the tunics of the seed at the apex. Leaves narrow, lower 9 cm long, the upper much shorter. Sheath membranous or with membranous margins, without auricles.
- Inflorescence terminal branched. Flowers usually solitary with 2 bracteoles. Outer perianth segments (3-7 mm), longer than the fruit, narrow and acute with a white or greenish peduncle.
- Fruit: capsule ovoid, 3-angled, yellow-greenish or sometimes reddish, dry and dehiscent.
- Biological type: Annual.
Ecological profile (click on flags):
Present
Present
Present
Present
Present
Rare
Present
Present
