Urochloa panicoides: Difference between revisions

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{{Prose|date=October 2007}}
{{taxobox
{{taxobox
|image = Common signal grass.jpg
|image = Urochloa panicoides.jpg
|regnum = [[Plantae]]
|regnum = [[Plantae]]
|unranked_divisio = [[Angiosperms]]
|unranked_divisio = [[Angiosperms]]
Line 12: Line 11:
|species = '''''U. panicoides'''''
|species = '''''U. panicoides'''''
|binomial = ''Urochloa panicoides''
|binomial = ''Urochloa panicoides''
|binomial_authority = [[P.Beauv.]]
|}}
|synonyms = ''Panicum borzianum''<br>''Panicum controversum''<br>''Panicum helopus''<br>''Panicum hirsutum''<br>''Panicum hochstetteranum''<br>''Panicum javanicum''<br>''Panicum oxycephalum''<br>''Panicum panicoides''<br>''Panicum setarioides''<br>''Urochloa helopus''<br>''Urochloa marathensis''<br>''Urochloa panicoides''<br>''Urochloa pubescens''<br>''Urochloa ruschii''

}}
'''''Urochloa panicoides''''' is a [[fodder]] [[grass]] originating in [[Southern Africa]].
'''''Urochloa panicoides''''' is a [[fodder]] [[grass]] originating in [[Southern Africa]].

==Synonyms==
* ''Panicum borzianum'' Mattei fide Fl. Trop. E. Africa: 603.
* ''Panicum controversum'' Steud.
* ''Panicum helopus'' Trin. in Spreng. <ref>Neue Entdeckungen im Ganzen Umfang der Pflanzenkunde 2: 84. 1821.. 2:84. 1821. Duthie, Fodder Grasses 8. 1888.</ref>
* ''Panicum helopus'' Trin. f. ''glabrescens'' K.Schum. fide Fl. Trop. E. Africa
* ''Panicum hirsutum'' Koen. ex Roxb.
* ''Panicum hochstetteranum'' A.Rich.
* ''Panicum javanicum'' Poir.
* ''Panicum oxycephalum'' Peter
* ''Panicum panicoides'' (P. Beauv.) Hitchc.
* ''Panicum setarioides'' Peter - (1928), non Steud. (1854).-- nom.nud.
* ''Urochloa helopus'' (Trin.) Stapf
* ''Urochloa marathensis'' Henr.
* ''Urochloa marathensis'' var. ''velutina'' Henr.
* ''Urochloa ruschii'' Pilg.
* ''Urochloa panicoides'' P. Beauv., Ess. Agrost. 53,
* ''Urochloa panicoides'' var. ''marathensis'' (Henr.) Bor.
* ''Urochloa panicoides'' var. ''pubescens'' (Kunth) Bor
* ''Urochloa panicoides'' var. ''velutina'' (Henr.) Bor
* ''Urochloa pubescens'' Kunth


== Description==
== Description==
This annual grass has decumbent or upright stems up to a meter long. It may root where its lower nodes contact the substrate. The leaves have linear or lance-shaped blades up to 25 centimeters long. They are hairless to somewhat hairy, and they may have hairs lining the edges. The [[inflorescence]] is composed of up to 10 [[raceme]]s, each up to 7 centimeters long. The spikelets are solitary or paired.<ref>{{GrassBase | name = ''Urochloa panicoides'' | id = imp10723}}</ref>
* '''Habitat''': [[annual plant|annual]]; [[caespitose]]. [[Culm (plant)|Culm]]s [[geniculately]] ascending, or [[decumbent]]; 10–100 cm long; without [[nodal root]]s, or rooting from lower [[Node (botany)|node]]s. [[Ligule]] a fringe of hairs. [[Leaf-blade]] base amplexicaul. Leaf-blades linear, or [[lanceolate]]; 2–25 cm long; 5–18 mm wide. Leaf-blade surface [[glabrous]], or pubescent. Leaf-blade margins [[tuberculate]]-[[ciliate]]; hairy at base.
* '''Inflorescence''': [[Inflorescence]] composed of [[raceme]]s. Racemes 2–7(–10); borne along a central axis; unilateral; 1–7 cm long. Central inflorescence axis 1–9 cm long. [[Rhachi]]s narrowly winged; angular; glabrous on surface, or with scattered hairs. [[Spikelet]] packing [[abaxial]]; regular; 2 -rowed. Spikelets solitary, or in pairs. Fertile spikelets sessile and pedicelled. Pedicels bearing a few hairs.
* '''Fertile spikelets''': Spikelets comprising 1 basal sterile florets; 1 fertile florets; without [[rhachilla]] extension. Spikelets elliptic; dorsally compressed; compressed strongly; plano-convex; acute; (2.5–)3.5–4.5(–5.5) mm long; falling entire.
* '''Glumes''': [[Glume]]s dissimilar; reaching apex of [[floret]]s; thinner than fertile [[lemma (botany)|lemma]]. Lower glume ovate; clasping; 0.5(–0.66) times length of spikelet; membranous; without keels; 3–5 -veined. Lower glume surface glabrous, or pubescent. Lower glume apex obtuse, or acute. Upper glume elliptic; 1 times length of spikelet; membranous; without s; 7–11 -veined. Upper glume lateral veins with cross-veins. Upper glume surface [[glabrous]], or pubescent. Upper glume apex [[acuminate]].
* '''Floret''': Basal sterile florets male, or barren; with [[palea]]. Lemma of lower sterile floret similar to upper glume; elliptic; 1 times length of spikelet; membranous; 5–7 -veined; glabrous, or pubescent; [[eciliate]] on margins, or [[setose]] on margins; acuminate. Fertile lemma orbicular; dorsally compressed; 2 mm long; [[indurate]]; without keel. Lemma surface [[rugulose]]. Lemma margins [[involute]]. Lemma apex obtuse; [[mucronate]]. Principal lemma awn 0.3–1 mm long overall. Palea indurate.<ref>{{GrassBase | name = 'Urochloa panicoides'' | id = imp10723}}</ref>


''U. panicoides'' can be confused with ''[[Urochloa setigera]]'', but the morphology of the spikelet is slightly different.
''[[Urochloa setigera]]'' can be confused with forms of ''U. panicoides'' with pubescent, paired spikelets, especially when the base is missing. ''Urochloa panicoides'' has less abruptly [[cuspidate]] spikelets, a more coarsely rugose fertile [[floret]], and a much longer mucro on the upper lemma.


==Distribution==
==Distribution==
This grass is native to southern Africa. It has [[Naturalisation (biology)|naturalized]] elsewhere, including Australia, Argentina, and United States.
Native to southern Africa.
* [[Africa]]: Botswana, Eritrea, Ethiopia, Kenya, Malawi, Mauritius, Mozambique, Namibia, Somalia, South Africa, Sudan, Swaziland, Tanzania, Uganda, Zambia, Zimbabwe
* [[Asia]]: Yemen, [[India]], [[Pakistan]], Thailand, China (Sichuan, Yunnan).
* [[Naturalized]] elsewhere, including Australia, Argentina, and United States.


==Ecology==
==Ecology==
Moist [[grassland]]s, lakesides up to an [[altitude]] of 140-2200 m.
It is most common on moist [[grassland]]s and lakesides up to an [[altitude]] of 2200 meters.


==Usage==
==Usage==
A [[weed]] and a potential [[seed contaminant]]. Though often used as a [[fodder]] grass for both [[cattle]] and [[horse]]s.
This grass is often used as a [[fodder]] for [[cattle]] and [[horse]]s. It is now known as a [[weed]] and a potential seed contaminant.


==Diseases and Pests==
==Diseases and Pests==
This grass is susceptible to the [[Maize streak virus]] (MSV) (which is also called [[Pearl millet|bajra]] streak, [[cereal]] African streak virus, [[maize]] streak A virus). This virus is transmitted by the following [[Cicadellidae]] [[insect]] species: [[Cicadulina mbila]], [[Cicadulina arachidis]], [[Cicadulina]], [[Cicadulina triangula]], [[Cicadulina bimaculata]], [[Cicadulina similis]], [[Cicadulina latens]], [[Cicadulina ghaurii]], [[Cicadulina parazeae]].
This grass is susceptible to the [[maize streak virus]] (MSV), which is transmitted by [[leafhopper]]s such as ''[[Cicadulina mbila]]'', ''[[Cicadulina arachidis|C. arachidis]]'', ''[[Cicadulina triangula|C. triangula]]'', ''[[Cicadulina bimaculata|C. bimaculata]]'', ''[[Cicadulina similis|C. similis]]'', ''[[Cicadulina latens|C. latens]]'', ''[[Cicadulina ghaurii|C ghaurii]]'', and ''[[Cicadulina parazeae|C. parazeae]]''.
It is also susceptible to the [[Cereal chlorotic mottle]] [[nucleorhabdovirus]]. This too is transmitted by insects: Nesoclutha pallida, Cicadula bimaculata, [[Cicadulina bipunctata]] ssp. [[Bipunctella]].
It is also susceptible to [[cereal chlorotic mottle virus]], which is transmitted by several insects, including ''[[Nesoclutha pallida]]'' and ''[[Cicadula bimaculata]]''.

==names in other languages==
The following forms are recorded for this grass:
*'''[[Punjabi language|Punjabi]]''' [[dialect]] in India: barajalgauti, harat, basaunta, chaprai Ia. chat ta. gal¬phula. jal-ganti, jalganti. jhun. kaadu hilisamme kaadubilli-saatnal hullo. kakdel. kuwain, kowin. kuri, kuriya, motia. pandhar, poir.salla-woodoo, sallawudu, sam¬wan, semai.
* '''[[Afrikaans language|Afrikaans]]''': tuin-urochltta, tuinheesgras, heesgras, cenjarige sinjaalgras, kurimanna, tuingras.
* '''[[Chinese language|Chinese]]''': 黍尾稃草 lei shu wei fu cao.
* '''[[English language|English]]''': annual signal grass, garden signal grass, garden grass, panic liverseed grass, liverseed grass, liver seed grass, liverseedgrass, herringbone grass, kuri-millet, poke.
** ''Australia'': urochloa grass, garden urochloa, panic urochloa grass, urochloa.
** ''South Africa'': garden urochloa.
** ''United States'': liverseed grass.
*** ''Alabama:'', ''California'', Florida, Massachusetts, Minnesota, Oregon, Vermont: liver seed grass; North Carolina: liverseed grass; South Carolina: liverseedgrass
** ''Zimbabwe'': Kuri millet.
* '''[[Italian language|Italian]]''': pasto africano.
* '''[[Somali language|Somali]]''': farsho.
* '''[[Sotho language|Sotho]]''': kgola, kgolane, bore-ba-ntjia.


==Common names==
Common names for the grass include '''''barajalgauti''''', '''''basaunta''''' ([[Punjabi language|Punjabi]]), '''''tuinheesgras''''', '''''heesgras''''', '''''kurimanna''''' ([[Afrikaans]]), '''annual signal grass''', '''garden signal grass''', '''panic liverseed grass''', '''herringbone grass''' ([[English language|English]]), '''kuri millet''' (in [[Zimbabwe]]), '''''pasto africano''''' ([[Italian language|Italian]]), '''''farsho''''' ([[Somali language|Somali]]), '''''kgolane''''', and '''''bore-ba-ntjia''''' ([[Sotho language|Sotho]]).
== References ==
== References ==
{{Reflist}}
{{Reflist}}

Revision as of 03:06, 13 June 2013

Urochloa panicoides
Scientific classification
Kingdom:
(unranked):
(unranked):
(unranked):
Order:
Family:
Subfamily:
Genus:
Species:
U. panicoides
Binomial name
Urochloa panicoides
Synonyms

Panicum borzianum
Panicum controversum
Panicum helopus
Panicum hirsutum
Panicum hochstetteranum
Panicum javanicum
Panicum oxycephalum
Panicum panicoides
Panicum setarioides
Urochloa helopus
Urochloa marathensis
Urochloa panicoides
Urochloa pubescens
Urochloa ruschii

Urochloa panicoides is a fodder grass originating in Southern Africa.

Description

This annual grass has decumbent or upright stems up to a meter long. It may root where its lower nodes contact the substrate. The leaves have linear or lance-shaped blades up to 25 centimeters long. They are hairless to somewhat hairy, and they may have hairs lining the edges. The inflorescence is composed of up to 10 racemes, each up to 7 centimeters long. The spikelets are solitary or paired.[1]

U. panicoides can be confused with Urochloa setigera, but the morphology of the spikelet is slightly different.

Distribution

This grass is native to southern Africa. It has naturalized elsewhere, including Australia, Argentina, and United States.

Ecology

It is most common on moist grasslands and lakesides up to an altitude of 2200 meters.

Usage

This grass is often used as a fodder for cattle and horses. It is now known as a weed and a potential seed contaminant.

Diseases and Pests

This grass is susceptible to the maize streak virus (MSV), which is transmitted by leafhoppers such as Cicadulina mbila, C. arachidis, C. triangula, C. bimaculata, C. similis, C. latens, C ghaurii, and C. parazeae.

It is also susceptible to cereal chlorotic mottle virus, which is transmitted by several insects, including Nesoclutha pallida and Cicadula bimaculata.

Common names

Common names for the grass include barajalgauti, basaunta (Punjabi), tuinheesgras, heesgras, kurimanna (Afrikaans), annual signal grass, garden signal grass, panic liverseed grass, herringbone grass (English), kuri millet (in Zimbabwe), pasto africano (Italian), farsho (Somali), kgolane, and bore-ba-ntjia (Sotho).

References

  1. ^ Clayton, W.D.; Vorontsova, M.S.; Harman, K.T.; Williamson, H. "Urochloa panicoides". GrassBase - The Online World Grass Flora. Royal Botanic Gardens, Kew.