Hordeum marinum subsp. gussoneanum (Parl.) Thell.
Show more
Details
Hordeum marinum subsp. gussoneanum (Parl.) Thell.
Hordeum marinum subsp. gussoneanum (Parl.) Thell.
Nomenclature
Classification
Vernacular names
Synonyms
Descriptions
Closely tufted, glaucous annuals, 7.5-40-(85) cm. Leaf-sheath green or straw-coloured, without auricles, lower covered with short, soft, horizontally spreading hairs, upper glabrous, the uppermost ± inflated. Ligule 0.2-0.6 mm, truncate, erose to ciliate. Leaf-blade 2-7-(14) cm × 1.5-2.5-(3.5) mm, flat, narrowed to acute tip, margins minutely scabrid, pilose or abaxially sometimes less densely hairy to ± glabrous. Culm 5-35-(80) cm, often decumbent, internodes glabrous. Raceme erect, glaucous, dense-flowered, ± oblong, 2-6 × 1-2 cm; rachis fragile but not disarticulating readily, margins finely ciliate. Central ☿ spikelet sessile; lateral spikelets Ø, on slender pedicels 0.5-1 mm. Glumes of all spikelets ± equal, 10-15 mm, scabrid, awn-like, glumes of lateral spikelets overtopping lemma awns, inner occasionally widened at base. Lemmas of lateral spikelets 2.5-5 mm, abaxially glabrous, with scabrid awn 2-7 mm, adaxially with scattered hairs; rachilla prolongation 1-3 mm. Lemma of central spikelet 5.5-7.5 mm, abaxially glabrous, scabrid awn 6-15 mm overtopping glumes, adaxially with scattered soft hairs above. Palea = lemma, folded, keels shortly excurrent and scabrid near tip, abaxially glabrous, adaxially with a few short hairs apically. Rachilla prolongation c. 2.5-4 mm. Lodicules 1 mm, glabrous. Anthers 0.75-1.3 mm. Gynoecium: ovary c. 0.5 mm; stigma-styles 1.2-1.5 mm. Caryopsis 3-5 × 1-1.5 mm; embryo 0.5 mm.
Taxonomic concepts
Critesion hystrix (Roth) Á.Löve
Critesion hystrix (Roth) Á.Löve
Hordeum marinum subsp. gussoneanum (Parl.) Thell.
Hordeum hystrix Roth
Hordeum hystrix Roth
Hordeum marinum subsp. gussoneanum (Parl.) Thell.
Hordeum marinum subsp. gussoneanum (Parl.) Thell.
Hordeum marinum subsp. gussoneanum (Parl.) Thell.
Collections
Metadata
e433746f-251a-46aa-914e-70dd07e68d90
scientific name
Names_Plants
18 June 2021
18 June 2021