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WIKTROP - Weed Identification and Knowledge in the Tropical and Mediterranean areas
WIKTROP - Weed Identification and Knowledge in the Tropical and Mediterranean areas
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Eragrostis cilianensis (All.) Janch.

Accepted
Eragrostis cilianensis (All.) Janch.
Eragrostis cilianensis (All.) Janch.
Eragrostis cilianensis (All.) Janch.
Eragrostis cilianensis (All.) Janch.
Eragrostis cilianensis (All.) Janch.
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🗒 Synonyms
synonymBriza eragrostis L.
synonymBriza major L. ex Kunth
synonymBriza megastachya Steud. [Invalid]
synonymBriza megastachya Steud., pro syn.
synonymBriza oblonga Moench [Illegitimate]
synonymBriza oblonga Moench, nom. superfl.
synonymBriza purpurascens Muhl.
synonymCalotheca purpurascens (Muhl.) Spreng.
synonymEragrostis argentina Jedwabn.
synonymEragrostis articulata De Wild. [Illegitimate]
synonymEragrostis articulata De Wild., nom. illeg.
synonymEragrostis cilianensis f. leersioides (C.Presl) Maire
synonymEragrostis cilianensis f. megastachya (Koeler) Maire & Weiller
synonymEragrostis cilianensis f. minor (Host) Maire & Weiller
synonymEragrostis cilianensis subsp. major (Beck) Maire & Weiller
synonymEragrostis cilianensis subsp. major (Host) Maire & Weiller
synonymEragrostis cilianensis subsp. starosselskyi (Grossh.) Tzvelev
synonymEragrostis cilianensis subsp. thyrsiflora (Willk. & Lange) H.Scholz & Valdés
synonymEragrostis cilianensis var. leersioides (C.Presl) Maire
synonymEragrostis cilianensis var. major (Beck) Maire
synonymEragrostis cilianensis var. minoroides P.Monts.
synonymEragrostis cilianensis var. starosselskyi (Grossh.) Dobignard & Portal
synonymEragrostis cilianensis var. subbiloba (Chiov.) Dobignard & Portal
synonymEragrostis cilianensis var. thyrsiflora (Willk. & Lange) Dobignard & Portal
synonymEragrostis costata B.L.Turner
synonymEragrostis eragrostis (L.) MacMill. [Invalid]
synonymEragrostis eragrostis (L.) MacMill., nom. inval.
synonymEragrostis eragrostis var. megastachya (Koeler) Farw., nom. inval.
synonymEragrostis flexuosa Steud.
synonymEragrostis leersioides (C.Presl) Steud.
synonymEragrostis leersioides (J.Presl) Steud.
synonymEragrostis leersioides var. leersioides
synonymEragrostis major Host [Illegitimate]
synonymEragrostis major Host, nom. superfl.
synonymEragrostis major var. conferta Ten.
synonymEragrostis major var. subbiloba (Chiov.) Chiov.
synonymEragrostis megalostachya (Koeler) St.-Lag.
synonymEragrostis megastachya (Koeler) Link
synonymEragrostis megastachya f. nana Lorentz & Niederl.
synonymEragrostis megastachya var. cilianensis (All.) Asch. & Graebn.
synonymEragrostis megastachya var. cilianensis (All.) Asch. & Graebn., nom. superfl.
synonymEragrostis megastachya var. compacta (Regel) Krylov
synonymEragrostis megastachya var. leersioides (C.Presl) Pant.
synonymEragrostis megastachya var. thyrsiflora Willk. & Lange
synonymEragrostis minor var. major Beck
synonymEragrostis minor var. megastachya (Koeler) Burtt Davy
synonymEragrostis minor var. megastycha (Koeler) Burtt Davy
synonymEragrostis monodii A.Camus
synonymEragrostis multiflora f. violacea N.Terrac. ex Chiov.
synonymEragrostis multiflora var. cilianensis (All.) Maire
synonymEragrostis multiflora var. glandulifera Chiov.
synonymEragrostis multiflora var. insularis Chiov.
synonymEragrostis multiflora var. leersioides (Guss.) Richt.
synonymEragrostis multiflora var. subbiloba Chiov.
synonymEragrostis multiflora var. triticea (C. Presl) Richt.
synonymEragrostis multiglandulosa H.Scholz
synonymEragrostis oblonga (Moench) Baumg. [Illegitimate]
synonymEragrostis oblonga Baumg., nom. illeg.
synonymEragrostis pappiana var. insularis (Chiov.) Mattei
synonymEragrostis pappii Gand.
synonymEragrostis polyadenia Mattei
synonymEragrostis polymorpha Roem. & Schult.
synonymEragrostis polysperma Peter
synonymEragrostis pooides var. compacta Regel
synonymEragrostis pooides var. megastachya (Koeler) A.Gray
synonymEragrostis schweinfurthiana Jedwabn.
synonymEragrostis starosselskyi Grossh.
synonymEragrostis thyrsiflora Willk. & Lange, nom. inval.
synonymEragrostis triticea (C.Presl) Steud.
synonymEragrostis virletii E.Fourn.
synonymEragrostis vulgaris C.Presl ex Steud. [Illegitimate]
synonymEragrostis vulgaris subsp. major (Beck) Rouy
synonymEragrostis vulgaris subsp. megastachya (Koeler) Douin
synonymEragrostis vulgaris var. megastachya (Koeler) Coss. & Germ.
synonymErosion cilianense (All.) Lunell
synonymMegastachya eragrostis (L.) Roem. & Schult.
synonymMegastachya leersioides C.Presl
synonymMegastachya oblonga (Moench) P.Beauv. [Illegitimate]
synonymMegastachya oblonga P.Beauv., nom. superfl.
synonymMegastachya obtusa Schult.
synonymMegastachya purpurascens (Muhl.) Schult.
synonymMegastachya triticea C.Presl
synonymPoa cachectica Schumach.
synonymPoa cilianensis All.
synonymPoa eragrostis (L.) Brot. [Illegitimate]
synonymPoa eragrostis (L.) Brot., nom. illeg.
synonymPoa flava Willd. ex Steud. [Invalid]
synonymPoa flava Willd. ex Steud., pro syn.
synonymPoa flexuosa Roxb. [Illegitimate]
synonymPoa flexuosa Roxb., nom. illeg.
synonymPoa leersioides (C.Presl) Guss.
synonymPoa leersioides (J.Presl) Guss.
synonymPoa megastachya Koeler
synonymPoa megastachya Koeler [Illegitimate]
synonymPoa nuttallii Spreng. [Illegitimate]
synonymPoa nuttallii Spreng., nom. superfl.
synonymPoa oblonga (Moench) Baumg. [Illegitimate]
synonymPoa oblonga Baumg., nom. superfl.
synonymPoa obtusa Nutt. [Illegitimate]
synonymPoa obtusa Nutt., nom. illeg.
synonymPoa pennsylvanica Nutt.
synonymPoa philadelphica W.P.C.Barton [Illegitimate]
synonymPoa philadelphica W.P.C.Barton, nom. superfl.
synonymPoa polymorpha J.Koenig ex Rottb. [Illegitimate]
synonymPoa polymorpha J.Koenig ex Rottler, nom. illeg.
synonymPoa roxburghiana Schult.
synonymPoa tortuosa Spreng.
synonymPoa triticea (C.Presl) Kunth
synonymPoa triticea (J.Presl) Kunth
🗒 Common Names
Malagasy
  • Ahipoly, Ahipody, Tsimbony (Sud-ouest, Ouest et Moyen-ouest)
📚 Overview
Overview
Brief
Code

ERAME

Growth form

grass

Biological cycle

annual

Habitat

terrestrial

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Lovena Nowbut
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    Diagnostic Keys
    Description

    Global description

    Eragrostis cilianensis is a tufted plant, with long and tapered leaves marked by a tuft of long white perrigular hairs. The ligule is ciliated. The margin of the leaf blade is glandular. The inflorescence is a loose panicle, ovoid, composed of spikelets extensively pedicellate. They are laterally compressed, consisting of 5 to 40 flowers. The spikelets are dislocate from the base but the paleas are persistent. The glumes, lemmas and paleas are cartilaginous with glandular dorsal rib. The grain is orbicular, red in colour.
     
    First leaves

    The first leaves have a rolled prefoliation. The leaf blade is linear and much tapered to the apex, 2 to 8 cm long and 2 to 4 mm wide. It is obliquely erect. The ligule is ciliated. The periligular line consists of a row of long white hairs forming whiskers on each side of the ligule. The sheath is cylindrical and glabrous. The hull is very marked. The leaf blade is smooth. The margin is lined with some glands. Midrib is slightly marked.
     
    General habit

    The plant grows as a loose tuft. This species measure 10 to 60 cm high.
     
    Underground system

    The roots are fibrous.
     
    Culm

    The culm of the grass is cylindrical, 1 to 3 mm large. It is smooth and glabrous. The nodes are glabrous and dark in color.
     
    Leaf

    The leaves are alternate, obliquely erect. The sheath is cylindrical and slightly keeled. It is glabrous and has wart-like glands along the veins. The ligule is ciliated, 1 mm high. The periligular line consists of an alignment of long white hairs, 2 to 5 mm long, as well as whiskers on each side of the ligule. The lamina is linear, extensively tapering to the apex in a sharp point. It is 5 to 20 cm long and 4 to 8 mm wide. It is glabrous and the margin is finely scabrous, with small glands spaced over the entire length.
     
    Inflorescence

    The inflorescence is an ovoid panicle, loose, 4 to 20 cm long. Main branches are often glandular.
     
    Spikelet

    The spikelets are carried by pedicels, 1 to 4 mm long. They are yellowish green in color, laterally compressed and they are 3 to 20 mm long and 2 to 4 mm wide. They consist of 5 to 40 identical flowers that at maturity, dislocate from the base of the spikelet. During disarticulation, the paleas remain persistent on racheole. The glumes are oval lanceolate, 1.5 to 2 mm long. The lower glume is narrower and longer than the upper glume. The dorsal rib is finely scabrous. The lemmas are oval and 2 to 2.7 mm long. They are often glandular along the dorsal rib and display marked lateral rib. The paleas are shorter and narrower. All parts are in membranous to cartilagenous.
     
    Grain

    The grain is free, orbicular, having a diameter of 0.5 mm. The seed coat is smooth and dark red in colour.

     

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      📚 Natural History
      Life Cycle

      Life cycle

      Annual
      Annual
      Cyclicity
      Northern Cameroon: Eragrostis cilianensis operates primarily in early and mid-crop cycle. Germination occurs in May and lasts only one to two weeks. After weeding or ridging, the new emergence are few. Flowering occurs very quickly (June) or 2-3 weeks after emergence. Flowering is abundant until July. Fruiting and dispersal mainly take place from July to August and extend to a lesser extent till the drying of the plant at the end of the rainy season (October). In the regularly maintained plots, only some individuals develop after the last cultural operation. Their growth time before flowering is lengthened but their development cycle also ends at the end of rainy season.
      Madagascar: E. cilianensis blooms during the rainy season to the middle of the dry season.

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        Reproduction
        Eragrostis cilianensis is an annual species. It multiplies only by seeds dispersed by wind and water.

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          Morphology

          Growth form

          Tuft plant with narrow leaves
          Tuft plant with narrow leaves

          Leaf type

          Grass or grass-like
          Grass or grass-like

          Latex

          Without latex
          Without latex

          Root type

          Fibrous roots
          Fibrous roots

          Ligule type

          Ligule ciliate with hairs around the ligule
          Ligule ciliate with hairs around the ligule

          Stipule type

          No stipule
          No stipule

          Leaf attachment type

          with graminate sheathing
          with graminate sheathing
          with graminate sheathing and hair
          with graminate sheathing and hair

          Fruit type

          Grain of grasses
          Grain of grasses

          Lamina base

          sheathing grass-like broader
          sheathing grass-like broader

          Lamina apex

          attenuate
          attenuate

          Simple leaf type

          Lamina linear
          Lamina linear

          Lamina section

          flat
          flat
          folded
          folded
          Look Alikes
          Criteria for identifying some Eragrostis at the vegetative stage (see Le Bourgeois and Kamga-Tchayé 1991)

          1 Presence of many sticky glands on the sheath - E. viscosa
          1' Absence of sticky glands on the sheath:
             2 Periligular zone glabrous:
                3 Ligule 0.7 mm, membranous, truncate barely ciliated at the apex; glabrous sheath; glabrous lamina, banded, 3 to 5 mm wide - E. namaquensis
                3' Ligule membrano-ciliate 0.3 mm; glabrous sheath; ciliate margin and base (hair white 2-3 mm) - E. gangetica
             2' Tufts of developed periligular hairs:
                   4 Ligule = 0.3 mm:
                      5 Short and stiff periligular hairs from 1 to 1.5 mm; ciliated ligule - E. turgida
                      5' Silky, well-developed periligular hairs of 3-4 mm; membrane-ciliated ligule:
                         6 Glabrous sheath and limb - E. pilosa
                         6' Long white hairs 3-4 mm at the base and on the margin of the limb, limb green-blue; ligule very slightly membranous - E. tremula
                   4' Ligule 0.7 to 1 mm, ciliate, usually doubled by a second line of longer hairs:
                            7 Very long periligular hairs with mustaches of 5 to 7 mm; ciliated ligule lined with a 2nd row of long hair 3-4 mm - E. aspera
                            7' Periligular hairs developed but with a length of 2 to 5 mm:
                               8 Ciliated ligule lined with a second row of long hairs; densely hairy sheath - E. ciliaris
                               8' Ciliated ligule not lined with a second row of hairs; limb glabrous at the base ; margin with few hairs; glabrous sheath - E. cilianensis

          Thomas Le Bourgeois
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            Ecology
            Eragostis cilianensis is a sun-loving species.

            Northern Cameroon: E. cilianensis develops in the Sudano-Sahelian and Sudano-Sahelian regions where the annual rainfall is between 500 and 1200 mm. It is a ruderal species, which grows along roadside, in vacant lots and fallows. It is also a common weed of annual crops. It grows mainly in clay soils like vertisols and alluvial and fersialitic soils.
            Madagascar: Eragrostis cilianensis grows on ferruginous, lateritic, fersialitic and alluvial soils, with low to medium fertility, in sunny places. It is a weed of rainfed crops, present on roadsides, crops and fallows in semi-arid and sub-humid areas up to 1000 m of elevation. It occurs in more or less extensive farming systems, based on cassava, corn or peanut in the Southwest, West and Middle West.

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              📚 Habitat and Distribution
              Description
              Origin

              Eragrostis cilianensis is native to Eurasia
               
              Worldwide distribution


              Eragrostis cilianensis is widely spread in tropical areas around the world: North America, Central and South America (introduced and naturalized); South, East and Central Europe, North Africa, tropical and southern Africa, South-west islands of the Indian Ocean, West Asia and Arabian Peninsula, India and Pakistan, China, South-east Asia , Indonesia, Australia.
               

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                No Data
                📚 Occurrence
                No Data
                📚 Demography and Conservation
                Risk Statement
                Local harmfulness
                 
                Northern Cameroon: Eragrostis cilianensis is a regional weed present in 15% of the plots cultivated in Sudano-Sahelian zone and to a lesser extent in the Sudano-Sahelian region. This species is mainly present in less intensified cultures receiving no herbicide. Its development is easily limited by cultural operations such as weeding and mounding.
                Madagascar: E. cilianensis is a common weed species in semi-arid and sub-humid areas with a medium to low abundance in all crops grown on ferruginous soils during the long dry season. It does not present any particular difficulty. Locally, E. cilianensis can be quite abundant in cassava and peanuts in more or less sandy soils in the Southwest.

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                  No Data
                  📚 Uses and Management
                  Uses
                  Fodder: Eragrostis cilianensis can be used as secondary forage in dry areas in Madagascar.

                   

                  Thomas Le Bourgeois, Randriamampianina Jean Augustin
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                    Management
                    Local control

                    Madagascar: In the South-west and in the Middle West of Madagascar Eragrostis cilianensis is controlled by hand weeding with angady in cropping systems based on cassava, peanut or Bambara groundnut.

                    Thomas Le Bourgeois, Randriamampianina Jean Augustin
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                      No Data
                      📚 Information Listing
                      References
                      1. Grard, P., T. Le Bourgeois and H. Merlier (2010). Adventrop V.1.5 Les adventices d'Afrique soudano-sahélienne. Montpellier, France, Cirad.
                      2. Le Bourgeois, T. and H. Merlier (1995). Adventrop - Les adventices d'Afrique soudano-sahélienne. Montpellier, France, Cirad. 640 p.
                      1. Vanden Berghen C., 1983. Matériaux pour une flore de la végétation herbacée de la Casamance occidentale, Sénégal, Fascicule 2, Gramineae. Jardin Botanique National de Belgique, 66 p.
                      1. Zon van der A.P.M., 1992. Graminées du Cameroun, Vol. II, Flore. Wageningen Agric. Univ. Papers 92 - 1, Wageningen, 557 p.
                      1. http://idao.cirad.fr/SpecieSheet?sheet=adventrop/species/e/erame/erame_fr.html
                      1. Braun M., Burgstaller H., Hamdoun A. M. & Walter H., 1991. Common weeds of Central Sudan. GTZ, Verlag Josef Margraf ed. Scientific Book, Weikersheim, Germany, 329 p.
                      1. Le Bourgeois Th. & Kamga F., 1991. Quelques critères de détermination au stade végétatif des Eragrostis annuels adventices des cultures au Nord-Cameroun. Weed Research, 31, 1 : 59-62.
                      2. Clayton, W.D., Vorontsova, M.S., Harman, K.T. and Williamson, H. (2006 onwards). GrassBase - The Online World Grass Flora. http://www.kew.org/data/grasses-db.html. [accessed 08 January 2020]
                      1. Berhaut J., 1967. Flore du Sénégal. 2ème éd. Clairafrique éd., Dakar, Sénégal, 485 p.
                      1. Hutchinson J., Dalziel J. M., Keay R. W. J. & Hepper F. N., 1972. Flora of West Tropical Africa. Vol. III part. 2. 2ème éd. The Whitefriars Press ed., London & Tonbridge, 574 p.
                      1. Stanfield D.P., 1970. The flora of Nigeria, Grasses. Stanfield and Lowe ed., Ibadan University Press, Ibadan, Nigeria, 118 p.
                      1. Le Bourgeois Th., 1993. Les mauvaises herbes dans la rotation cotonnière au Nord-Cameroun (Afrique) - Amplitude d'habitat et degré d'infestation - Cycle de développement. Thèse USTL Montpellier II, Montpellier, France, 241 p.
                      1. BOSSER J. 1969 – LES GRAMINEES DES PATURAGES ET DES CULTURES A MADAGASCAR, Mémoire ORSTOM N°35, ORSTOM Paris, p 144-147.
                      Information Listing > References
                      1. Grard, P., T. Le Bourgeois and H. Merlier (2010). Adventrop V.1.5 Les adventices d'Afrique soudano-sahélienne. Montpellier, France, Cirad.
                      2. Le Bourgeois, T. and H. Merlier (1995). Adventrop - Les adventices d'Afrique soudano-sahélienne. Montpellier, France, Cirad. 640 p.
                      3. Vanden Berghen C., 1983. Matériaux pour une flore de la végétation herbacée de la Casamance occidentale, Sénégal, Fascicule 2, Gramineae. Jardin Botanique National de Belgique, 66 p.
                      4. Zon van der A.P.M., 1992. Graminées du Cameroun, Vol. II, Flore. Wageningen Agric. Univ. Papers 92 - 1, Wageningen, 557 p.
                      5. http://idao.cirad.fr/SpecieSheet?sheet=adventrop/species/e/erame/erame_fr.html
                      6. Braun M., Burgstaller H., Hamdoun A. M. & Walter H., 1991. Common weeds of Central Sudan. GTZ, Verlag Josef Margraf ed. Scientific Book, Weikersheim, Germany, 329 p.
                      7. Le Bourgeois Th. & Kamga F., 1991. Quelques critères de détermination au stade végétatif des Eragrostis annuels adventices des cultures au Nord-Cameroun. Weed Research, 31, 1 : 59-62.
                      8. Clayton, W.D., Vorontsova, M.S., Harman, K.T. and Williamson, H. (2006 onwards). GrassBase - The Online World Grass Flora. http://www.kew.org/data/grasses-db.html. [accessed 08 January 2020]
                      9. Berhaut J., 1967. Flore du Sénégal. 2ème éd. Clairafrique éd., Dakar, Sénégal, 485 p.
                      10. Hutchinson J., Dalziel J. M., Keay R. W. J. & Hepper F. N., 1972. Flora of West Tropical Africa. Vol. III part. 2. 2ème éd. The Whitefriars Press ed., London & Tonbridge, 574 p.
                      11. Stanfield D.P., 1970. The flora of Nigeria, Grasses. Stanfield and Lowe ed., Ibadan University Press, Ibadan, Nigeria, 118 p.
                      12. Le Bourgeois Th., 1993. Les mauvaises herbes dans la rotation cotonnière au Nord-Cameroun (Afrique) - Amplitude d'habitat et degré d'infestation - Cycle de développement. Thèse USTL Montpellier II, Montpellier, France, 241 p.
                      13. BOSSER J. 1969 – LES GRAMINEES DES PATURAGES ET DES CULTURES A MADAGASCAR, Mémoire ORSTOM N°35, ORSTOM Paris, p 144-147.

                      Les mauvaises herbes dans la rotation cotonnière au Nord-Cameroun (Afrique)

                      Thomas Le Bourgeois
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                      Thomas Le Bourgeois
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                        🐾 Taxonomy
                        📊 Temporal Distribution
                        📷 Related Observations
                        👥 Groups
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