Code
ERAAM
Growth form
grass
Biological cycle
annual
Habitat
terrestrial
🗒 Synonyms
| synonym | Cynodon amabilis (P.Beauv.) Raspail |
| synonym | Cyperus paniculatus Blanco [Illegitimate] |
| synonym | Cyperus paniculatus Blanco, nom. illeg. |
| synonym | Eragrostis amabilis f. varia Kuntze |
| synonym | Eragrostis amabilis var. breviculmis Stapf |
| synonym | Eragrostis amabilis var. duriuscula K.Schum. |
| synonym | Eragrostis amabilis var. insularis (C.E.Hubb.) P.Umam. & P.Daniel |
| synonym | Eragrostis amabilis var. peramangalamensis P.Umam. & P.Daniel |
| synonym | Eragrostis amabilis var. plumosa (Retz.) A.Camus |
| synonym | Eragrostis amabilis var. plumosa (Retz.) E.G.Camus & A.Camus |
| synonym | Eragrostis amabilis var. tenella (L.) A.Camus |
| synonym | Eragrostis breviculmis (Stapf) H.Lév. |
| synonym | Eragrostis breviculmis H.Lév., nom. nud. |
| synonym | Eragrostis caudata Nees ex Steud. |
| synonym | Eragrostis ciliaris var. patens Chapm. ex Beal |
| synonym | Eragrostis confinis Nees ex Steud. |
| synonym | Eragrostis despiciens (Link) Schult. |
| synonym | Eragrostis elytroblephara Steud. |
| synonym | Eragrostis laxa Baker |
| synonym | Eragrostis mauritii Steud. |
| synonym | Eragrostis plumosa (Retz.) Link |
| synonym | Eragrostis taffzagra Steud. |
| synonym | Eragrostis tenella (L.) P.Beauv. ex Roem. & Schult. |
| synonym | Eragrostis tenella var. breviglumis Stapf |
| synonym | Eragrostis tenella var. insularis C.E.Hubb. |
| synonym | Eragrostis tenella var. koenigii Kuntze |
| synonym | Eragrostis tenella var. plumosa (Retz.) Stapf |
| synonym | Erochloe amabilis (L.) Raf. ex B.D.Jacks [Invalid] |
| synonym | Erochloe amabilis Raf. ex B.D.Jacks, pro syn. |
| synonym | Megastachya amabilis (L.) P.Beauv. |
| synonym | Megastachya tenella (L.) Bojer |
| synonym | Poa amabilis L. |
| synonym | Poa despiciens Link |
| synonym | Poa indica Bory ex Steud. [Invalid] |
| synonym | Poa indica Bory ex Steud., pro syn. |
| synonym | Poa plumosa Retz. |
| synonym | Poa pseudamabilis Roxb. ex Stapf [Invalid] |
| synonym | Poa pseudamabilis Roxb. ex Stapf, pro syn. |
| synonym | Poa speciosa Willd. ex Spreng. [Invalid] |
| synonym | Poa speciosa Willd. ex Spreng., pro syn. |
| synonym | Poa tenella L. |
| synonym | Poa tenuissima Schrad. [Invalid] |
| synonym | Poa tenuissima Schrad., nom. nud. |
| synonym | Poa unioloides Willd. ex Spreng. [Invalid] |
| synonym | Poa unioloides Willd. ex Spreng., pro syn. |
🗒 Common Names
| Anglais / English |
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| Bengali |
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| Hindi |
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| Other |
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📚 Overview
Description
Global description
Eragrostis amabilis is a delicate erect annual grass that forms loose tufts, 6 to 50 cm high. The culm is glabrous with dark nodes. The leaf is elongated, linear, with sharp pointed tip, glabrous, with scabrous margin. The ligule is shortly ciliated, framed by long hairs. The inflorescence is a loose and branched, pyramidal to elliptical panicle to spiciform panicle, with very fine twigs provided with a tuft of hairs at the base. It is composed of flattened pedicellate spikelets containing 4 to 11 flowers, arranged sparsely. The spikelets disintegrate from the top to the base. Paleas are ciliate on the keels. Grain, ellipsoid shape, is small, 0.5 mm on average.
General habit
Erect annual grass, with delicate stems in loose clumps. Smaller to medium size plant that measures 6 to 50 cm high.
Underground system
The root system is fasciculate.
Culm
The culm is slender, erect or bent at the base and then erect, simple or branched. The nodes are brown in colour.
Leaf
The sheath has a margin extensively ciliated. The ligular area is bordered with long flexuous hairs. The ligule is reduced to a line of short hairs. The lamina is linear, narrowed at the base, extensively tapering to the apex in a sharp point. It is flat or rolled, glabrous, with scabrous margin. It measures 5 to 9 cm long and 2 to 5 mm wide.
Inflorescence
The inflorescence is an open and branched panicle, elliptical to pyramidal, which measures 2 to 20 cm (up to 30 cm) long and 2 to 8 cm wide. It is composed of fine solitary twigs, 1 to 4 cm long, erect or spreading, whose base is generally provided with a tuft of long hairs. These branches have glands, yellowish in color, which are non-sticky. The spikelet is pedunculate, flat, oblong ovoid, 1.5 to 2.5 mm long and 1 to 1.5 mm wide. It is often pinkish. It contains 4 to 11 flowers. The spikelets are dislocated from the top to the base. There is a variety with a spiciform and norrow panicle that corresponds to the previously named E. tenella var. insularis C.E.Hubb (Flore des Mascareignes) which is now included in E. amabilis.
Spikelet
The glumes are unequal to subequal. They measure between 0.5 and 1 mm long. They are oval, pointed at the top, uni-nervate, keeled and scabrous on the keel. The lower lemma is oval-oblong, truncated at the top, 3-veined, scabrous on keels. It measures 0.5 to 1 mm long. The upper lemma is slightly shorter. It has two keels long ciliate (0.1 to 0.3 mm) not exceeding the body of the adjacent lower lemma. The flower has 3 stamens.
Grain
The grain is ellipsoid. It measures 0.4 to 0.6 mm long.
Eragrostis amabilis is a delicate erect annual grass that forms loose tufts, 6 to 50 cm high. The culm is glabrous with dark nodes. The leaf is elongated, linear, with sharp pointed tip, glabrous, with scabrous margin. The ligule is shortly ciliated, framed by long hairs. The inflorescence is a loose and branched, pyramidal to elliptical panicle to spiciform panicle, with very fine twigs provided with a tuft of hairs at the base. It is composed of flattened pedicellate spikelets containing 4 to 11 flowers, arranged sparsely. The spikelets disintegrate from the top to the base. Paleas are ciliate on the keels. Grain, ellipsoid shape, is small, 0.5 mm on average.
General habit
Erect annual grass, with delicate stems in loose clumps. Smaller to medium size plant that measures 6 to 50 cm high.
Underground system
The root system is fasciculate.
Culm
The culm is slender, erect or bent at the base and then erect, simple or branched. The nodes are brown in colour.
Leaf
The sheath has a margin extensively ciliated. The ligular area is bordered with long flexuous hairs. The ligule is reduced to a line of short hairs. The lamina is linear, narrowed at the base, extensively tapering to the apex in a sharp point. It is flat or rolled, glabrous, with scabrous margin. It measures 5 to 9 cm long and 2 to 5 mm wide.
Inflorescence
The inflorescence is an open and branched panicle, elliptical to pyramidal, which measures 2 to 20 cm (up to 30 cm) long and 2 to 8 cm wide. It is composed of fine solitary twigs, 1 to 4 cm long, erect or spreading, whose base is generally provided with a tuft of long hairs. These branches have glands, yellowish in color, which are non-sticky. The spikelet is pedunculate, flat, oblong ovoid, 1.5 to 2.5 mm long and 1 to 1.5 mm wide. It is often pinkish. It contains 4 to 11 flowers. The spikelets are dislocated from the top to the base. There is a variety with a spiciform and norrow panicle that corresponds to the previously named E. tenella var. insularis C.E.Hubb (Flore des Mascareignes) which is now included in E. amabilis.
Spikelet
The glumes are unequal to subequal. They measure between 0.5 and 1 mm long. They are oval, pointed at the top, uni-nervate, keeled and scabrous on the keel. The lower lemma is oval-oblong, truncated at the top, 3-veined, scabrous on keels. It measures 0.5 to 1 mm long. The upper lemma is slightly shorter. It has two keels long ciliate (0.1 to 0.3 mm) not exceeding the body of the adjacent lower lemma. The flower has 3 stamens.
Grain
The grain is ellipsoid. It measures 0.4 to 0.6 mm long.
Wiktrop
| Attributions | Wiktrop |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY_SA |
| References |
There is content in another language. Please click here to read it. (Français)
No Data
📚 Nomenclature and Classification
No Data
📚 Natural History
Life Cycle
Life cycle
Annual
There is content in another language. Please click here to read it. (Français)
Mayotte: Eragrostis amabilis flowers from March to August and fruits from July to September.
Wiktrop
| Attributions | Wiktrop |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
Reproduction
There is content in another language. Please click here to read it. (Français)
Eragrostis amabilis is an annual plant that reproduces by seeds.
Wiktrop
| Attributions | Wiktrop |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
Morphology
Growth form
Tuft plant with narrow leaves
Leaf arrangement
Alternate
Leaf type
Grass or grass-like
Grass-like leaf type
Grass leaf
Type of prefoliation
Rolled leaf
Latex
Without latex
Stem section
Round
Root type
Fibrous roots
Ligule type
Ligule ciliate with hairs around the ligule
Hollow or solid stem
Hollow stem
Stipule type
No stipule
Leaf attachment type
with graminate sheathing
Fruit type
Grain of grasses
Lamina base
sheathing grass-like broader
Lamina margin
scabrous
Lamina apex
attenuate
Upperface pilosity
Less hairy
Upperface hair type
Scabrous
Long
Lowerface pilosity
Glabrous
Simple leaf type
Lamina linear
Lamina section
flat
folded
Lamina Veination
Parallel
Flower color
Green
Inflorescence type
Panicle
Stem pilosity
Glabrous
Life form
Grass
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
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
| Attributions | |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
There is content in another language. Please click here to read it. (Français)
Ecology
There is content in another language. Please click here to read it. (Français)
Eragrostis amabilis is common in the savanna biome, as a weed on moist sandy soils in disturbed places such as pathsides, and cultivated lands, also on river banks, lake shores and coastal dunes: 0-1160m
Mayotte: Eragrostis amabilis is a native species, quite common in crops, pastures, open agroforests of the humid zone.
dummy
| Attributions | dummy |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY_SA |
| References |
No Data
📚 Habitat and Distribution
General Habitat
Habitat
Terrestrial
Description
Geographical distibution
Madagascar
Origin
Eragrostis amabilis is native to paleotropics.
Worldwide distribution
It is now widely naturalized throughout the tropics.
dummy
| Attributions | dummy |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY_SA |
| References |
There is content in another language. Please click here to read it. (Français)
No Data
📚 Occurrence
No Data
📚 Demography and Conservation
Risk Statement
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Local harmfulness
Burkina Faso: Eragrostis amabilis is rare and scarce.
Ivory Coast: common and scarce.
Ghana: rare and scarce.
Mali: rare and scarce.
Nigeria: rare and scarce.
Senegal: frequent and scarce.
Burkina Faso: Eragrostis amabilis is rare and scarce.
Ivory Coast: common and scarce.
Ghana: rare and scarce.
Mali: rare and scarce.
Nigeria: rare and scarce.
Senegal: frequent and scarce.
Wiktrop
| Attributions | Wiktrop |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
No Data
📚 Uses and Management
Management
There is content in another language. Please click here to read it. (Français)
Global control
For annual grass weed control tips irrigated rice and lowland in Africa, visit: http://portal.wiktrop.org/document/show/32
For annual grass weed control tips irrigated rice and lowland in Africa, visit: http://portal.wiktrop.org/document/show/32
Wiktrop
| Attributions | Wiktrop |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
No Data
📚 Information Listing
Global Biodiversity Information Facility (GBIF)
Thomas Le Bourgeois
| Attributions | |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
There is content in another language. Please click here to read it. (Français)
References
- Okezie Akobundu, I. et Agyakwa, C.W. 1989. Guide des adventices d'Afrique de l'Ouest. Institut international d'agriculture tropicale, Ibadan, Nigeria.
- Hutchinson, J., Dalziel, J.M., Keay, R.W.J., Hepper, F.N. 1972. Flora of west tropical africa. The Whitefriars Press, London & Tonbridge, Great Britain.
- Johnson, D.E. 1997. Les adventices en riziculture en Afrique de l'Ouest. ADRAO/WARDA, Bouaké, Côte-d'Ivoire.
- Poilecot P., J. Timberlake., R. B. Drummond, A. Mapaura, S. Shava (2007). Eragrostis species of Zimbabwe. Editions Quea. 87p;
- Holm, L., Pancho J. , V., Herberger J. P., Plucknett D. L., (1979). A geographical atlas of world weeds. John Wiley & Sons, New York;
- I. O. Akobundu, C.W. Agyakwa (1998). A handbook of West African Weeds. International Institute of Tropical Agriculture, Ibadan, Nigeria 484p.
- Barthelat, F. 2019. La Flore illustrée de Mayotte. Meze, Paris, France, Collection Inventaires et Biodiversité, Biotope – Muséum national d’Histoire naturelle. 687 p.
- Grard, P., T. Le Bourgeois, J. Rodenburg, P. Marnotte, A. Carrara, R. Irakiza, D. Makokha, G. kyalo, K. Aloys, K. Iswaria, N. Nguyen and G. Tzelepoglou (2012). AFROweeds V.1.0: African weeds of rice. Cédérom. Montpellier, France & Cotonou, Bénin, Cirad-AfricaRice eds.
Information Listing > References
- Okezie Akobundu, I. et Agyakwa, C.W. 1989. Guide des adventices d'Afrique de l'Ouest. Institut international d'agriculture tropicale, Ibadan, Nigeria.
- Hutchinson, J., Dalziel, J.M., Keay, R.W.J., Hepper, F.N. 1972. Flora of west tropical africa. The Whitefriars Press, London & Tonbridge, Great Britain.
- Johnson, D.E. 1997. Les adventices en riziculture en Afrique de l'Ouest. ADRAO/WARDA, Bouaké, Côte-d'Ivoire.
- Poilecot P., J. Timberlake., R. B. Drummond, A. Mapaura, S. Shava (2007). Eragrostis species of Zimbabwe. Editions Quea. 87p;
- Holm, L., Pancho J. , V., Herberger J. P., Plucknett D. L., (1979). A geographical atlas of world weeds. John Wiley & Sons, New York;
- I. O. Akobundu, C.W. Agyakwa (1998). A handbook of West African Weeds. International Institute of Tropical Agriculture, Ibadan, Nigeria 484p.
- Barthelat, F. 2019. La Flore illustrée de Mayotte. Meze, Paris, France, Collection Inventaires et Biodiversité, Biotope – Muséum national d’Histoire naturelle. 687 p.
- Grard, P., T. Le Bourgeois, J. Rodenburg, P. Marnotte, A. Carrara, R. Irakiza, D. Makokha, G. kyalo, K. Aloys, K. Iswaria, N. Nguyen and G. Tzelepoglou (2012). AFROweeds V.1.0: African weeds of rice. Cédérom. Montpellier, France & Cotonou, Bénin, Cirad-AfricaRice eds.
Images
Herbarium pictures ReCOLNAT: https://explore.recolnat.org/search/botanique/simplequery=Eragrostis%2520amabilis
Thomas Le Bourgeois
| Attributions | |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
There is content in another language. Please click here to read it. (Français)
No Data
🐾 Taxonomy
| Root | Root |
| Kingdom | Plantae |
| Phylum | Tracheophyta |
| Class | Liliopsida |
| Order | Poales |
| Family | Poaceae |
| Genus | Eragrostis |
| Species | Eragrostis amabilis (L.) Wight & Arn. |
📊 Temporal Distribution
📷 Related Observations
