Common name: Mediterranean Barley Grass
Hordeum hystrix Roth APNI*
Description: Tufted annual to 0.4 m high.
Leaves with ligule membranous, c. 0.5 mm long, toothed, 1 end often with 1 larger tooth to 1 mm long; auricles absent; blade flat, to 3 mm wide, with hairs c. 0.5 mm long.
Inflorescence spicate, dense, 1–5 cm long to 0.7 cm wide (excluding awns); rachis breaking below each node at maturity. Spikelets 5–8 mm long (excluding awns), in triplets, florets 1; lateral spikelets male with pedicels to 1 mm long; central spikelet female, sessile. Glumes equal, bristle-like to lanceolate, 4–6 mm long, tapering to an awn to 12 mm long. Male lemma 2–4 mm long, tapering to an awn to 5 mm long; palea absent or reduced. Female lemma 4–6 mm long, tapering to an awn to 13 mm long; palea subequal to lemma.
Distribution and occurrence: Weed of disturbed sites. Native of Medit. region.
NSW subdivisions: *CC, *NT, *CT, *ST, *CWS, *SWS, *SWP
Other Australian states: *Vic. *Tas. *W.A. *S.A.
Text by S. W. L. Jacobs & K. L. McClay
Taxon concept: Flora of NSW 4 (1993)
APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
***The AVH map option provides a detailed interactive Australia wide distribution map drawn from collections held by all major Australian herbaria participating in the Australian Virtual Herbarium project.