Is it a native?
Mediterranean Barley-grass - introduced (*Hordeum hystrix)
Native to the Europe. Annual. C3.
Family. Poaceae (Grass family).
Other names: *Critesion hystrix.
Occurrence: Moderately common.
- the flower cluster is dense and spike-like
- the spikelets are in threes and glumes and lemmas taper into long stout awns
- the glumes of the central spikelet and the lateral spikelets are narrow near the base, are rough to the touch, and hairless
- the leaves are flat and the leaf sheaths have hairs at least 0.5mm long
- the ligules are membanous and irregularly toothed, 0.5-1mm long.
It is an environmental weed.
hystrix: like a porcupine or hedgehog.
1: Flower clusters. 2: Group of 3 spikelets partly spread apart.
Mediterranean Barley-grass differs from other barley grasses
- the glumes of the central spikelet are narrow near the base, and taper to a point
- both glumes of the outer spikelets are narrow
- the glumes are rough to touch but not hairy
- the lower leaf sheaths are hairy with hairs more than 0.5mm. long.