Rytidosperma pilosum (R.Br.) Connor & Edgar

Hairy wallaby grass (en)

Species

Angiosperms > Poales > Poaceae > Rytidosperma

Characteristics

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.
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Plants caespitose; innovation buds intravaginal. Culms 14–70 cm high. Inflorescences obliquely ovate to linear-lanceolate, when linear the spikelets diverge from axis. Spikelets 10–22 mm long, with 5–8 florets. Glumes equalling to exceeding florets; lower glume 10.4–18.5 mm long, c. 3.5 mm wide. Lemma: body 2.8–4 mm long, glabrous to villous between the rows of tufts; upper row of hair tufts of marginal and some dorsal tufts or of only marginal tufts; lower row of tufts complete and not reaching the upper row; lobes as long as body; setae 3.5–7.5 mm long, as long as to longer than lobes; awn 11–18 mm long, exceeding setae; awn column tightly twisted, exceeding lobes but shorter than setae. Palea 3.2–4.4 mm long, narrow, 3–5 times as long as wide, reaching to slightly exceeding lemma sinus. Anthers 0.4–1.1 mm long. Caryopsis 1.6–1.8 mm long.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.2 - 0.6
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
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Nitrogen fixer -
Photosynthetic pathway c3

Environment

Very commonand often co-dominant with A. caespitosa in grassland and lightlyshaded habitats. 
Light -
Soil humidity -
Soil texture -
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Hardiness (USDA) 7-11

Usage

Uses animal food
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
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Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Rytidosperma pilosum unspecified picture

Distribution

Rytidosperma pilosum world distribution map, present in Australia, New Zealand, and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:419825-1
WFO ID wfo-0000896487
COL ID 6WYZ9
BDTFX ID 168493
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Austrodanthonia pilosa Rytidosperma pilosum Danthonia gunniana Notodanthonia pilosa Danthonia pilosa Danthonia penicillata var. pilosa Danthonia pilosa var. paleacea Notodanthonia pilosa var. paleacea Rytidosperma pilosum var. paleaceum