HYPP-A Unité de Malherbologie & Agronomie
Weed Science & Agronomy
INRA-Dijon

Bayer Code : crxhi

Scientific name: Carex hirta L.


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


Seed snapshot Seed:

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Seedling snapshot Seedling:

- 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.


Adult plant snapshot Adult plant:

- 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): BeneLux   Present     Germany  Present     France  Present     Portugal  Rare    

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