Code
CUOCY
Growth form
cyperaceae
Biologial cycle
annual
Habitat
marshland
CUOCY
Growth form
cyperaceae
Biologial cycle
annual
Habitat
marshland
🗒 Synonyms
| synonym | Courtoisia cyperoides (Roxb.) Nees |
| synonym | Cyperus kleinianus Hochst. ex Steud. |
| synonym | Cyperus pseudokyllingioides Kük. |
| synonym | Cyperus pseudokyllingioides var. africanus Kük. |
| synonym | Indocourtoisia cyperoides (Roxb.) Bennet & Raizada |
| synonym | Kyllinga cyperoides Roxb. |
| synonym | Mariscus cyperoides (Roxb.) A.Dietr. |
| synonym | Mariscus cyperoides subsp. africanus (Kük.) Podl. |
| synonym | Pseudomariscus cyperoides (Roxb.) Rauschert |
🗒 Common Names
| No Data |
📚 Overview
Description
Global description
Courtoisina cyperoides is an annual cyperaceae, erect, that grows in dense leafy clumps. The stems are trigonal, glabrous, from 20-60 cm high. The numerous radical leaves are quite soft, flat or bent, 3 to 5 mm wide. The inflorescence is a simple or compound umbel, formed by many dense globular spikes carried by a long peduncle. The inflorescence is subtended by 3 to 6 foliaceous bracts developed, more or less spread, 10 to 20 cm long.
First leaves
First leaves are in tristichous arrangement, sheathing with a short leaf blade, V cross-section, with rounded corners, more or less erect according to the height of the water layer.
General habit
Plant erect in dense clumps, reaching up to 60 cm high.
Underground system
The roots are densely fibrous.
Stem
The aerial stem correspond to the flowering axis. It is full, trigonal, smooth, 20 to 60 cm tall, with rounded corners.
Leaf
The leaves are simple, alternate in tristichous arrangement. The radical leaves are numerous, quite soft, with leaf blade plane or folded in V, 3 to 6 mm wide and 30 to 70 cm long, with the apex attenuated in acute corner. Both sides are smooth and glabrous, the margin is finely scabrous. No ligule.
Inflorescence
The inflorescence is a simple or compound umbel. The main umbel of 4 to 10 radius, often short, but can reach up to 10 cm long, at the end of which is a small umbellule, formed by many globular and dense spikes, 5 to 10 mm in diameter. The inflorescence is subtended by 3 to 6 leafy, involucres, developed bracts, 10 to 50 cm long.
Flower
The spikelets are ovate, 4 to 5 mm long and 2 to 2.5 mm wide, with 1 to 2 flowers. They are very compressed and tight. The glumes of 4 to 5 mm oval, with reddish or yellowish sides, without apparent venation, high mucro arched at the top, are distichous.
Fruit
The fruit is a narrowly oblong achene reaching up to 3/4 of the glume, dark red in colour.
Courtoisina cyperoides is an annual cyperaceae, erect, that grows in dense leafy clumps. The stems are trigonal, glabrous, from 20-60 cm high. The numerous radical leaves are quite soft, flat or bent, 3 to 5 mm wide. The inflorescence is a simple or compound umbel, formed by many dense globular spikes carried by a long peduncle. The inflorescence is subtended by 3 to 6 foliaceous bracts developed, more or less spread, 10 to 20 cm long.
First leaves
First leaves are in tristichous arrangement, sheathing with a short leaf blade, V cross-section, with rounded corners, more or less erect according to the height of the water layer.
General habit
Plant erect in dense clumps, reaching up to 60 cm high.
Underground system
The roots are densely fibrous.
Stem
The aerial stem correspond to the flowering axis. It is full, trigonal, smooth, 20 to 60 cm tall, with rounded corners.
Leaf
The leaves are simple, alternate in tristichous arrangement. The radical leaves are numerous, quite soft, with leaf blade plane or folded in V, 3 to 6 mm wide and 30 to 70 cm long, with the apex attenuated in acute corner. Both sides are smooth and glabrous, the margin is finely scabrous. No ligule.
Inflorescence
The inflorescence is a simple or compound umbel. The main umbel of 4 to 10 radius, often short, but can reach up to 10 cm long, at the end of which is a small umbellule, formed by many globular and dense spikes, 5 to 10 mm in diameter. The inflorescence is subtended by 3 to 6 leafy, involucres, developed bracts, 10 to 50 cm long.
Flower
The spikelets are ovate, 4 to 5 mm long and 2 to 2.5 mm wide, with 1 to 2 flowers. They are very compressed and tight. The glumes of 4 to 5 mm oval, with reddish or yellowish sides, without apparent venation, high mucro arched at the top, are distichous.
Fruit
The fruit is a narrowly oblong achene reaching up to 3/4 of the glume, dark red in colour.
Wiktrop
| Attributions | Wiktrop |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
There is content in another language. Please click here to read it. (Français)
No Data
📚 Nomenclature and Classification
No Data
📚 Natural History
Reproduction
There is content in another language. Please click here to read it. (Français)
Courtoisina cyperoides is an annual herb that is propagated by seed.
Wiktrop
| Attributions | Wiktrop |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
Look Alikes
There is content in another language. Please click here to read it. (Français)
Courtoisina cyperoides is very similar to Cyperus difformis L at the vegetative stage. It is distinguished by the absence of ligule, the angles of the rounded stem and the margin of scabrous leaves. At flowering, the spikelets are very different.
Wiktrop
| Attributions | Wiktrop |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
Ecology
There is content in another language. Please click here to read it. (Français)
Courtoisina cyperoides is a common species of humid areas, up to 1500 m in altitude: rice fields, edges of canals, dry cultivations on slightly humid soils in the low lands. She has a preference for rice fields with fairly fertile soils, receiving insufficient irrigation. It is a species less common than Cyperus difformis.
Comoros: Species occurring in humid environments at low altitude.
Madagascar: Common in humid areas, up to 1500 m in altitude: rice fields, edges of canals, dry cultivation on soil wet enough in the lowlands.She has a preference for rice fields with fairly fertile soils, receiving insufficient irrigation. It is a species less common than Cyperus difformis.
Mauritius: absent.
Reunion: absent.
Seychelles: absent.
Comoros: Species occurring in humid environments at low altitude.
Madagascar: Common in humid areas, up to 1500 m in altitude: rice fields, edges of canals, dry cultivation on soil wet enough in the lowlands.She has a preference for rice fields with fairly fertile soils, receiving insufficient irrigation. It is a species less common than Cyperus difformis.
Mauritius: absent.
Reunion: absent.
Seychelles: absent.
Wiktrop
| Attributions | Wiktrop |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
No Data
📚 Habitat and Distribution
Description
Worldwide distribution
Courtoisina cyperoides is widespread in East and Austral Africa, Madagascar, India and South-ast Asia.
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
📚 Occurrence
No Data
📚 Demography and Conservation
Risk Statement
Local harmfulness
Comoros: Courtoisina cyperoides is a weed of rice fields in Moheli.
Madagascar: Weed of average frequency but locally abundant in rice fields at medium altitude. It is abundant in rice fields badly irrigated particularly on alluvial soils.
Mauritius: absent.
Reunion: absent.
Seychelles: absent.
Comoros: Courtoisina cyperoides is a weed of rice fields in Moheli.
Madagascar: Weed of average frequency but locally abundant in rice fields at medium altitude. It is abundant in rice fields badly irrigated particularly on alluvial soils.
Mauritius: absent.
Reunion: absent.
Seychelles: absent.
Wiktrop
| Attributions | Wiktrop |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
There is content in another language. Please click here to read it. (Français)
No Data
📚 Uses and Management
📚 Information Listing
Global Biodiversity Information Facility (GBIF)
There is content in another language. Please click here to read it. (Français)
Thomas Le Bourgeois
| Attributions | |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
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.
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.
Images
There is content in another language. Please click here to read it. (Français)
Herbarium pictures ReCOLNAT: https://explore.recolnat.org/search/botanique/simplequery=Courtoisina%2520cyperoides
Thomas Le Bourgeois
| Attributions | |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
No Data
🐾 Taxonomy
📊 Temporal Distribution
📷 Related Observations
👥 Groups
