Weed Science & Agronomy
INRA-Dijon
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Unité de Malherbologie & Agronomie Weed Science & Agronomy INRA-Dijon |
Bayer Code : crxhi
Synonym(s) of Sc. name:
Classification: Cyperaceae, Monocotyledonous
Common name: hairy sedge
Synonym(s) of Common name:
Name per country: DE : Behaarte Segge ; ES : laston ; FR : laîche hérissée ; IT : carice villosa ; PT : ; EN : hairy sedge ; NL : ruige zegge ;
Biological type: Perennial with rhizomes
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- Plant propagates vegetatively by rhizomes ; establishment from seedling is exceptional.
- Shoot plicate, triangular section.
- Lamina 20-50 times longer than large, leaf more or less hairy.
- Ligule membranous truncated, auricles absent.
- Height: 10-70 cm.
- Stem erect, triangular. Underground stem creeping rhizome.
- Leaves with elongated lamina, flat, 3-6 mm wide, covered by small hairs, leaf sheath glabrous. Presence of ochreas.
- White-greenish flowers, grouped in spike. Male spikes slender, 2 or 3 at top of stem. Female spikes 2-3, pistillate, oblong and thicker, short peduncles.Bracts long, similar to leaves, form long sheaths at base and edge of inflorescence.
- Fruits with reddish-green envelope, ovoid, weakly flattened on dorsal face, attenuated by elongated beak, lengthwise distinct veins and strigose hairs.
- - Risk of confusion with Bolboschoenus maritimus *. At vegetative stage with species of Cyperus genus.
- Biological type: perennial with rhizomes.
Mistake with: Scirpus maritimus , Cyperus
Ecological profile (click on flags):
Present
Present
Present
Rare
