Rytidosperma pilosum (R.Br.) Connor & Edgar
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Rytidosperma pilosum (R.Br.) Connor & Edgar, New Zealand J. Bot. 17: 326 (1979)
Rytidosperma pilosum (R.Br.) Connor & Edgar
Nomenclature
(R.Br.) Connor & Edgar
R.Br.
Connor & Edgar
1979
326
ICN
species
Rytidosperma pilosum
Classification
Synonyms
Descriptions
Rytidosperma pilosum (R.Br.) Connor & Edgar
Rather coarse, stiff, dense tufts, shortly rhizomatous; leaves much < culms; new shoots intravaginal. Sheaths pale, to light grey, glabrous or with scattered to dense hairs; collar hairs to 2.5—(3.5) mm long, stiff, in thick tufts on either side of lamina; ligule 0.1-0.2 mm long; lamina to 17 cm long, rather harsh, grey-green, flat to inrolled, with long stiff scattered hairs, margins closely scabrous. Culms stout, up to 85 cm tall, minutely hairy below inflorescence. Panicle ± compact and broad to somewhat laxer, up to 6 cm long, with few large spikelets on short pedicels; rhachis and pedicels rather sparsely, stiffly scabrous, with longer hair below spikelets and near branch axils. Spikelets 5-8-flowered, awns much exserted from glumes. Glumes pale, sometimes faintly purpled, lanceolate, subacute, ± equal, 8.5-12 mm long, both 5-7-nerved, occasionally with a few scattered hairs. Lemma (2)-3-4 mm long, 9- nerved, upper row of hairs ± = lemma, in a few isolated tufts, usually (0)-2-4 central tufts and l-(2) denser marginal tufts, lower row dense and continuous, lower marginal tufts reaching or overlapping upper marginal tufts, elsewhere glabrous; lemma lobes 7-10 mm long, tapering to fine awns. Central awn 12.5-15 mm long; column 3-5 mm long. Palea 2.5-3.7 mm long, = upper marginal tufts, = or slightly > awn sinus, glabrous between keels, margins glabrous or with a few long fine hairs. Callus 0.8-1 mm long, thick marginal hair tufts overlapping lower lemma hairs. Rhachilla 0.2-0.3 mm long. Anthers c. 0.4 and 0.8-1.7 mm long. Caryopsis 1.2-2 × 0.7-1 mm; embryo 0.5-0.9 mm long; hilum 0.4- 0.5 mm long. Naturalised in New Zealand from Australia.
Rytidosperma pilosum (R.Br.) Connor & Edgar
Rather coarse, stiff, dense tufts, shortly rhizomatous; leaves « culms; branching intravaginal. Leaf-sheath pale, to light grey, glabrous or with scattered to dense hairs; apical tuft of hairs stiff, thick, to 2.5-(3.5) mm. Ligule 0.1-0.2 mm. Leaf-blade to 17 cm, rather harsh, grey-green, flat to inrolled, long stiff scattered hairs, margins closely scabrid. Culm stout, to 85 cm, internodes glabrous but minutely hairy below inflorescence. Panicle ± compact and broad to somewhat laxer, to 6 cm, of few large spikelets on short pedicels; rachis and pedicels rather sparsely, stiffly scabrid, with longer hair below spikelets and near branch axils. Spikelets 5-8-flowered, awns much exserted from glumes. Glumes pale, sometimes faintly purplish, lanceolate, subacute, ± equal, 8.5-12 mm, both 5-7-nerved, occasionally a few scattered hairs. Lemma (2)-3-4 mm, 9-nerved, upper row of hairs ≈ lemma, in a few isolated tufts, usually (0)-2-4 central tufts and 1-(2) denser marginal tufts, lower row dense and continuous, lower marginal tufts reaching or overlapping upper marginal tufts, elsewhere glabrous; lobes 7-10 mm, tapering to fine awns; central awn 12.5-15 mm, column 3-5 mm. Palea 2.5-3.7 mm, = upper marginal tufts, ≥ awn sinus, interkeel glabrous, margins glabrous or with a few long fine hairs. Callus 0.8-1 mm, thick marginal hair tufts overlapping lower lemma hairs. Rachilla 0.2-0.3 mm. Anthers c. 0.4 and 0.8-1.7 mm. Caryopsis 1.2-2 × 0.7-1 mm; embryo 0.5-0.9 mm; hilum 0.4-0.5 mm.
Taxonomic concepts
Austrodanthonia pilosa (R.Br.) H.P.Linder
Rytidosperma pilosum (R.Br.) Connor & Edgar
Danthonia penicillata var. pilosa (R.Br.) Maiden & Betche
Rytidosperma pilosum (R.Br.) Connor & Edgar
Danthonia pilosa R.Br.
Rytidosperma pilosum (R.Br.) Connor & Edgar
Notodanthonia pilosa (R.Br.) Zotov
Rytidosperma pilosum (R.Br.) Connor & Edgar
Rytidosperma pilosum (R.Br.) Connor & Edgar
Rytidosperma pilosum (R.Br.) Connor & Edgar
Rytidosperma pilosum (R.Br.) Connor & Edgar
Rytidosperma pilosum (R.Br.) Connor & Edgar
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Identification keys
Metadata
c9ecfb0f-f903-45ec-9f95-5c59e3628f4d
scientific name
Names_Plants
1 January 2000
21 March 2006