Code
BULBA
Growth form
Sedge
Biological cycle
Annual
Habitat
Terrestrial
BULBA
Growth form
Sedge
Biological cycle
Annual
Habitat
Terrestrial
🗒 Synonyms
| synonym | Abildgaardia barbata (Rottb.) P.Beauv. |
| synonym | Cyperus barbata (Rottb.) Poir. |
| synonym | Fimbristylis barbata (Rottb.) Benth. |
| synonym | Iria barbata (Rottb.) Kuntze |
| synonym | Isolepis barbata (Rottb.) R.Br. |
| synonym | Scirpus barbatus Rottb. |
| synonym | Stenophyllus barbatus (Rottb.) T.Cooke |
🗒 Common Names
| No Data |
📚 Overview
Description
Global description
Bulbostylis barbata is a tufted species of filiform leaves. The inflorescences are subtended by 3 filiform bracts. They are glomeruli of short spikelets. The spikelets are composed of bisexual flowers enclosed in a membranous glume whose central vein is protruding and ends in curved tip. The achene is trine topped with a persistent trifid style.
First leaves
The first leaves develop into a small tuft. They are filiform, 1 to 3 cm long and 0.5 mm wide. At the base of the blade is a short sheath, wider than the blade. The top of the sheath is marked by a small tuft of short hairs. The blade is thick, gutter-shaped. The margin is slightly scabrous. The faces are glabrous and shiny.
General habit
The port is in small tuft 5 to 20 cm high.
Underground system
The roots are fasciculate. They are very numerous, simple and filiform.
Stem
The stems are filiform and have a triangular section. They are finely striated longitudinally.
Leaf
The leaves are arranged tristically. They are filiform. The sheath is membranous, 2 to 4 cm long and has at the top a small tuft of short hairs. The limb is erect. It is 3 to 5 cm long and 0.5 mm wide. It is thick, gutter-shaped. The summit is sharp tapered. The margin is slightly scabrous. The faces are glabrous.
Inflorescence
The flowers are assembled into short, sessile spikelets, themselves grouped into hemispherical terminal glomeruli. The glomeruli are subtended by 2 or 3 filiform bracts, the longest being 3 cm. Each glomerulus is 3 to 4 mm in diameter. It is formed from 5 to 15 short spikelets, 2 to 3 mm long. Spikelets are composed of several bisexual flowers. The glumes are scarious, greenish or golden brown, with a prominent, scabrous green central vein ending in a curved tip. The glumes are 2 mm long.
Fruit
The fruits are trigon achenes 0.6 mm long and 0.5 mm wide. They are surmounted by a terminal appendage corresponding to the trifid style, 1 mm long.
Bulbostylis barbata is a tufted species of filiform leaves. The inflorescences are subtended by 3 filiform bracts. They are glomeruli of short spikelets. The spikelets are composed of bisexual flowers enclosed in a membranous glume whose central vein is protruding and ends in curved tip. The achene is trine topped with a persistent trifid style.
First leaves
The first leaves develop into a small tuft. They are filiform, 1 to 3 cm long and 0.5 mm wide. At the base of the blade is a short sheath, wider than the blade. The top of the sheath is marked by a small tuft of short hairs. The blade is thick, gutter-shaped. The margin is slightly scabrous. The faces are glabrous and shiny.
General habit
The port is in small tuft 5 to 20 cm high.
Underground system
The roots are fasciculate. They are very numerous, simple and filiform.
Stem
The stems are filiform and have a triangular section. They are finely striated longitudinally.
Leaf
The leaves are arranged tristically. They are filiform. The sheath is membranous, 2 to 4 cm long and has at the top a small tuft of short hairs. The limb is erect. It is 3 to 5 cm long and 0.5 mm wide. It is thick, gutter-shaped. The summit is sharp tapered. The margin is slightly scabrous. The faces are glabrous.
Inflorescence
The flowers are assembled into short, sessile spikelets, themselves grouped into hemispherical terminal glomeruli. The glomeruli are subtended by 2 or 3 filiform bracts, the longest being 3 cm. Each glomerulus is 3 to 4 mm in diameter. It is formed from 5 to 15 short spikelets, 2 to 3 mm long. Spikelets are composed of several bisexual flowers. The glumes are scarious, greenish or golden brown, with a prominent, scabrous green central vein ending in a curved tip. The glumes are 2 mm long.
Fruit
The fruits are trigon achenes 0.6 mm long and 0.5 mm wide. They are surmounted by a terminal appendage corresponding to the trifid style, 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
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Bulbostylis barabta is an annual species. It reproduces only by seeds.
Thomas Le Bourgeois
| Attributions | |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
Cyclicity
Northern Cameroon: Bulbostylis barbata is a weed that grows mainly in the early and middle of the crop cycle. Germination occurs in May or June after plowing. The development cycle is then very fast. The first achenes are produced 5 weeks after emergence. Fruiting ends in September or October when the plant disappears.
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
Northern Cameroon: Bulbostylis barbata is a species of the Sahelo-Sudanian and Sudano-Sahelian regions with a rainfall of between 600 and 1100 mm. In these regions, it is present in 25% of cultivated plots. It is much less common in Sudan's wetter region. It is a weed of traditional cropping systems that do not receive inputs (fertilizer, herbicide). It usually develops on degraded soils, low in organic matter and acidic pH. It is frequent on degraded ferruginous soils whose superficial horizon is sandy. It is a good indicator species of poor soil, degraded to a sandy surface horizon.
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
📚 Habitat and Distribution
General Habitat
Worldwide distribution
This species is widespread throughout tropical Africa and Asia.
This species is widespread throughout tropical Africa and 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
North Cameroon: Bulbostylis barbata is considered as a regional weed, present in 20 to 30% of plots but mainly in the beginning and middle of the cotton crop cycle. It is not abundant.
North Cameroon: Bulbostylis barbata is considered as a regional weed, present in 20 to 30% of plots but mainly in the beginning and middle of the cotton crop cycle. It is not abundant.
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
📚 Uses and Management
📚 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. and H. Merlier (1995). Adventrop - Les adventices d'Afrique soudano-sahélienne. Montpellier, France, Cirad. 640p.
- 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, 574p.
- 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, 241p.
- Vanden Berghen C., 1982. Matériaux pour une flore de la végétation herbacée de la Casamance occidentale, Sénégal, Fascicule 1, Cyperaceae. Jardin Botanique National de Belgique, 40p.
Information Listing > References
- Le Bourgeois, T. and H. Merlier (1995). Adventrop - Les adventices d'Afrique soudano-sahélienne. Montpellier, France, Cirad. 640p.
- 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, 574p.
- 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, 241p.
- Vanden Berghen C., 1982. Matériaux pour une flore de la végétation herbacée de la Casamance occidentale, Sénégal, Fascicule 1, Cyperaceae. Jardin Botanique National de Belgique, 40p.
Images
Herbarium pictures ReCOLNAT: https://explore.recolnat.org/search/botanique/simplequery=Bulbostylis%2520barbata
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 | Cyperaceae |
| Genus | Bulbostylis |
| Species | Bulbostylis barbata (Rottb.) C.B.Clarke |
📊 Temporal Distribution
📷 Related Observations
