Code
PANGE
Grass
Biological cycle
Vivacious
Habitat
Marshland
🗒 Synonyms
| synonym | Digitaria adpressa Bojer [Spelling variant] |
| synonym | Digitaria adpressa Bojer, orth. var. |
| synonym | Digitaria affinis Roem. & Schult. |
| synonym | Digitaria appressa (Lam.) Pers. |
| synonym | Echinochloa geminata (Forssk.) Roberty |
| synonym | Panicum affine (Roem. & Schult.) Nees [Illegitimate] |
| synonym | Panicum affine (Roem. & Schult.) Nees, nom. illeg. |
| synonym | Panicum appressum (Lam.) Döll, nom. illeg. |
| synonym | Panicum appressum Forssk. |
| synonym | Panicum beckmanniiforme J.C.Mikan ex Trin. |
| synonym | Panicum briziforme J.Presl |
| synonym | Panicum brizoides Lam. [Illegitimate] |
| synonym | Panicum brizoides Lam., nom. illeg. |
| synonym | Panicum carnosum Salzm. ex Steud. [Invalid] |
| synonym | Panicum carnosum Salzm. ex Steud., pro syn. |
| synonym | Panicum emergens Hochst. |
| synonym | Panicum fluitans Retz. |
| synonym | Panicum geminatum Forssk. |
| synonym | Panicum glomeratum Buckley [Illegitimate] |
| synonym | Panicum glomeratum Buckley, nom. illeg. |
| synonym | Panicum paspaloides Pers. |
| synonym | Panicum truncatum Trin. |
| synonym | Paspalidium geminatum subsp. paludivagum (Hitchc. & Chase) Catasús |
| synonym | Paspalidium geminatum var. geminatum |
| synonym | Paspalidium pilgeri Herter |
| synonym | Paspalum adpressum Pers. ex B.D.Jacks. |
| synonym | Paspalum appressum Lam. |
| synonym | Setaria geminata (Forssk.) Veldkamp |
🗒 Common Names
| Créole Maurice |
|
| Créole Réunion |
|
| Other |
|
📚 Overview
Description
Global description
Paspalidium geminatum is a vivacious rhizomatous grass, with stems having fairly soft texture, radicants at lower nodes, spreading from a prostrate base then ascending, reaching 80 cm in height. The leaves have a glabrous and smooth sheath, a linear, glabrous lamina, 5 to 20 cm long and 3 to 8 mm wide, with a rolled margin. The inflorescence is composed of 4 to 15 short racemes, erect against the principal axis. The spikelets are broadly oval acute or elliptical, 2 to 2.5 mm long, contiguous, pale yellow and shiny.
First leaves
First leaves are linear, erect, with a rolled prefoliation.
General habit
Vivacious grass, with the stem of the grass prostrate then erect, up to 80 cm high.
Underground system
Adventitious fibrous roots at the nodes. Rhizomes quite developed with slightly short internodes, more or less spongy texture, which can crawl or float.
Culm
The culm of the grass is cylindrical, erect, smooth, fairly soft texture. The nodes are glabrous.
Leaf
The leaves are simple alternate. The sheath is glabrous and smooth. The ligule is ciliated, formed by a line of dense hairs. The lamina is linear and glabrous, 5 to 20 cm long, sometimes up to 30 cm and 3 to 8 mm wide, with entire rolled margin, the apex is finely acute or acuminate. The faces are glabrous.
Inflorescence
The inflorescence is a racemose linear panicle, 5 to 30 cm long, composed of 4 to 15 dorsoventrally racemes, sessile, short and dense. Those of the base are longer, measure 1 to 4 cm. They are erect against the main axis and rarely compound. The rachis of the racemes is flattened, 1 to 1.5 mm wide and pointed at the top. It is longer than the internode of the main axis of the inflorescence.
Spikelet
The spikelets are widely acute oval or elliptical, 1.6 to 2.5 mm long, briefly pedicellate, contiguous, arranged in two rows on the underside of the axis, pale yellow and shiny. The truncated lower glume ca reach up to one half the length of the spikelet, apparently without rib. The upper glume is slightly shorter than the spikelet and has five ribs. The internal flower is male, with the lemma the length of the spikelet,with 5 ribs. The external flower is fertile, slightly shorter, elliptical, apiculate, with leathery, smooth or finely granulate lemma and palea.
Grain
Largely oblong grain, 1 mm long.
Paspalidium geminatum is a vivacious rhizomatous grass, with stems having fairly soft texture, radicants at lower nodes, spreading from a prostrate base then ascending, reaching 80 cm in height. The leaves have a glabrous and smooth sheath, a linear, glabrous lamina, 5 to 20 cm long and 3 to 8 mm wide, with a rolled margin. The inflorescence is composed of 4 to 15 short racemes, erect against the principal axis. The spikelets are broadly oval acute or elliptical, 2 to 2.5 mm long, contiguous, pale yellow and shiny.
First leaves
First leaves are linear, erect, with a rolled prefoliation.
General habit
Vivacious grass, with the stem of the grass prostrate then erect, up to 80 cm high.
Underground system
Adventitious fibrous roots at the nodes. Rhizomes quite developed with slightly short internodes, more or less spongy texture, which can crawl or float.
Culm
The culm of the grass is cylindrical, erect, smooth, fairly soft texture. The nodes are glabrous.
Leaf
The leaves are simple alternate. The sheath is glabrous and smooth. The ligule is ciliated, formed by a line of dense hairs. The lamina is linear and glabrous, 5 to 20 cm long, sometimes up to 30 cm and 3 to 8 mm wide, with entire rolled margin, the apex is finely acute or acuminate. The faces are glabrous.
Inflorescence
The inflorescence is a racemose linear panicle, 5 to 30 cm long, composed of 4 to 15 dorsoventrally racemes, sessile, short and dense. Those of the base are longer, measure 1 to 4 cm. They are erect against the main axis and rarely compound. The rachis of the racemes is flattened, 1 to 1.5 mm wide and pointed at the top. It is longer than the internode of the main axis of the inflorescence.
Spikelet
The spikelets are widely acute oval or elliptical, 1.6 to 2.5 mm long, briefly pedicellate, contiguous, arranged in two rows on the underside of the axis, pale yellow and shiny. The truncated lower glume ca reach up to one half the length of the spikelet, apparently without rib. The upper glume is slightly shorter than the spikelet and has five ribs. The internal flower is male, with the lemma the length of the spikelet,with 5 ribs. The external flower is fertile, slightly shorter, elliptical, apiculate, with leathery, smooth or finely granulate lemma and palea.
Grain
Largely oblong grain, 1 mm long.
Thomas Le Bourgeois
| Attributions | |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
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No Data
📚 Nomenclature and Classification
No Data
📚 Natural History
Life Cycle
Life cycle
Vivacious
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Mayotte: Paspalidium geminatum flowers and fruits all year round.
Wiktrop
| Attributions | Wiktrop |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
Reproduction
Paspalidium geminatum is a vivacious grass that spreads by stolons or rhizomes, but also spreads by seed.
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)
Morphology
Growth form
Tuft plant with narrow leaves
Prostrated
Running plant
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
Rhizome
Fibrous roots
Ligule type
Ligule ciliate
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
entire
Lamina apex
attenuate
Upperface pilosity
Glabrous
Lowerface pilosity
Glabrous
Simple leaf type
Lamina linear
Lamina section
curved and thick
Lamina Veination
Parallel
Flower color
Green
Inflorescence type
Alternate racemes
Stem pilosity
Glabrous
Life form
Grass
Geophytic plant
Look Alikes
Paspalidium geminatum is distinguished from P. flavidum by its acute blade tip and the rachis of the racemes longer than the internodes of the inflorescence axis, whereas P. flavidum has leaf whose apex is obtuse and the rachis of the racemes shorter than the internodes of the inflorescence axis.
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
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Ecology
Paspalidium geminatum is a hygrophilous species that grows in small stands on the edge of rice fields, marshes, ponds or canals in humid areas of low altitude or around mangroves.
Cameroon: Species of aquatic areas and maraicages, present around Lake Chad and in the region of Maroua.
Comoros: Hygrophilous species bordering pond and mangrove.
Madagascar: hygrophilous species that grows in small stands on the edge of marshes, ponds and canals in humid areas of low altitude or bordering mangroves.
Mauritius: Common species in swamps, drains and along the canals, especially in the lower part of the island.
Mayotte: Paspalidium geminatum is a cryptogenic species which grows in wetlands, like in Combani and Tsingoni, in hygrophilic meadows and in ditches.
Reunion: hygrophilous species that grows along irrigation channels or in hydromorphic soil of perched water table, sometimes flush as in the lower part of the plain of Gol.
Seychelles: Absent.
Wiktrop
| Attributions | Wiktrop |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
No Data
📚 Habitat and Distribution
General Habitat
Habitat
Marshland
Description
Geographical distibution
Madagascar
Reunion Island
Comoros
Mauritius
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Origin
Paspalidium geminatum is native to Tropical Africa and India.
Worldwide distribution
Paspalidium geminatum is a widespread species in hot temperate and tropical regions of both hemispheres (Southern USA, Central America and Carribean, Tropical South America, Southern Asia).
Wiktrop
| Attributions | Wiktrop |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
No Data
📚 Occurrence
No Data
📚 Demography and Conservation
Risk Statement
Cameroon : common weed of rice fields in the Far North
Comoros: Slightly common weed, on the edges of rice fields.
Ivory Coast: Rare and scarce.
Madagascar: uncommon weed in rice paddies or dry crops. However, it can grows in poorly maintained canals.
Mauritius: A weed rarely seen in cultures, but its control is difficult when present in the sugar cane fields.
Reunion: Rare weed, as it is subservient to special hydromorphic soil conditions. In sugarcane, in the lower part of the plain of Gol, it can form quite dense stands, particularly along irrigation canals.
Seychelles: Absent.
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Local harmfulness
Benin: Paspalidium geminatum is a common weed and is slightly abundant in paddy fields.Cameroon : common weed of rice fields in the Far North
Comoros: Slightly common weed, on the edges of rice fields.
Ivory Coast: Rare and scarce.
Madagascar: uncommon weed in rice paddies or dry crops. However, it can grows in poorly maintained canals.
Mauritius: A weed rarely seen in cultures, but its control is difficult when present in the sugar cane fields.
Reunion: Rare weed, as it is subservient to special hydromorphic soil conditions. In sugarcane, in the lower part of the plain of Gol, it can form quite dense stands, particularly along irrigation canals.
Seychelles: Absent.
Wiktrop
| Attributions | Wiktrop |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
No Data
📚 Uses and Management
Management
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Global control
Directions for vivacious grass weed control in lowland rice in Africa, visit:http://portal.wiktrop.org/document/show/34
Local control
Directions for vivacious grass weed control in lowland rice in Africa, visit:http://portal.wiktrop.org/document/show/34
Local control
Mauritius: See MSIRI Recommendation Sheet No 144 - Chemical Control of Tough Weeds (click here)
Thomas Le Bourgeois
| Attributions | |
| 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
- Le Bourgeois, T., A. Carrara, M. Dodet, W. Dogley, A. Gaungoo, P. Grard, Y. Ibrahim, E. Jeuffrault, G. Lebreton, P. Poilecot, J. Prosperi, J. A. Randriamampianina, A. P. Andrianaivo and F. Théveny (2008). Advent-OI : Principales adventices des îles du sud-ouest de l'Océan Indien. Cédérom. Montpellier, France, Cirad ed.
- 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.
- van der Zon, A. P. M. (1992). Graminées du Cameroun, Vol II, Flore., Wageningen Agric. Univ. Netherlands.
- Autrey J.C., Bosser J. and Fergusson I. K. Flore des Mascareignes, vol 203 Graminées. La Réunion, Maurice, Rodrigues, MSIRI, IRD, Kew.
- Barthelat, F. 2019. La Flore illustrée de Mayotte. Meze, Paris, France, Collection Inventaires et Biodiversité, Biotope – Muséum national d’Histoire naturelle. 687 p.
- https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:979871-1
Information Listing > References
- Le Bourgeois, T., A. Carrara, M. Dodet, W. Dogley, A. Gaungoo, P. Grard, Y. Ibrahim, E. Jeuffrault, G. Lebreton, P. Poilecot, J. Prosperi, J. A. Randriamampianina, A. P. Andrianaivo and F. Théveny (2008). Advent-OI : Principales adventices des îles du sud-ouest de l'Océan Indien. Cédérom. Montpellier, France, Cirad ed.
- 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.
- van der Zon, A. P. M. (1992). Graminées du Cameroun, Vol II, Flore., Wageningen Agric. Univ. Netherlands.
- Autrey J.C., Bosser J. and Fergusson I. K. Flore des Mascareignes, vol 203 Graminées. La Réunion, Maurice, Rodrigues, MSIRI, IRD, Kew.
- Barthelat, F. 2019. La Flore illustrée de Mayotte. Meze, Paris, France, Collection Inventaires et Biodiversité, Biotope – Muséum national d’Histoire naturelle. 687 p.
- https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:979871-1
Images
Herbarium pictures ReCOLNAT: https://explore.recolnat.org/search/botanique/simplequery=Paspalidium%2520geminatum
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 | Paspalidium |
| Species | Paspalidium geminatum (Forssk.) Stapf |
📊 Temporal Distribution
📷 Related Observations
