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

Bayer Code : echor

Scientific name: Echinochloa oryzoides (Ard.) Fritsch

Synonym(s) of Sc. name: Echinochloa hostii (Bieb) Boros, Panicum oryzoides Ard. Echinochloa crus-galli var. oryzoides (Vasing) Ohwi

Classification: Gramineae, Monocotyledonous

Common name: rice cockspur

Synonym(s) of Common name:

Name per country: DE : Reisartige Hühnerhirse ; ES : equinocloa del arroz ; FR : panic faux-riz ; IT : giavone maggiore ; PT : milhã-do-arroz ; EN : rice cockspur ;

Biological type: Annual


- Leaves : usually pubescent ; margin scabrous ; marked central vein, sheath carinate.

Adult plant snapshot Adult plant:

- Height : 80-150 cm.

- Culm: erect, compressed, geniculate at base, glabrous ; lower nodes pubescent for a crown of dense, short and reddened hairs.

- Leaves : without ligule and auricles ; blade 10-40x1-2 cm, linear ; sheath and blade glabrous or slighty pubescent (mainly at the base).

- Inflorescence : many racemes arranged along an erect or scarcely curved axis reddish at maturation; spikelets 3.8-6.5 mm arranged in 2 unilateral rows, 2-flowered, the lower sterile or male, the upper hermaphrodite ; lower glume 3.5 mm, about 1/2 as long as the sterile lemma which is awned (awn 4-5 mm) or mucronate.

- Fruit : big, elliptic caryopsis, bigger than other Echinochloa species.

- Risk of confusion with: other species of the same genus.

- Biological type : annual.

Mistake with: Echinochloa

Ecological profile (click on flags): Spain   Present     France  Present     Italy  Present     Portugal  Present    

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