Code
SIDUR
Growth form
broadleaf
Biological cycle
perennial
Habitat
terrestrial
SIDUR
Growth form
broadleaf
Biological cycle
perennial
Habitat
terrestrial
🗒 Synonyms
| synonym | Sida boivinii Hochr. |
| synonym | Sida conferta Salzm. ex Triana & Planch. |
| synonym | Sida congensis D. Dietr. |
| synonym | Sida debilis G. Don |
| synonym | Sida debilis G.Don |
| synonym | Sida densiflora A. Rich. |
| synonym | Sida pseudourens Baker |
| synonym | Sida sessiliflora G. Don |
| synonym | Sida sessiliflora G.Don [Illegitimate] |
| synonym | Sida urens var. bicolor Roberty |
| synonym | Sida verticillata Cav. |
🗒 Common Names
| Creoles and pidgins; French-based |
|
| Other |
|
📚 Overview
Description
Global description
Sida urens is an erect, branched plant, completely covered with hirsute hair, annual to multiannual, can reach up to 1 m high. The leaves simple and alternate are ovate with cordate and long-acuminate base and serrated margin. They are covered on two sides with simple and stellate hairs. The pale yellow flowers are solitary or grouped in fascicles, in axillary or terminal position.The fruit is composed with 5 mericarps with large curved beak and each containing a dark brown seed.
Cotyledons
The cotyledons have a densely bristling petiole. It measures 1.5 to 2 cm long and exceeds the lamina. The lamina is oval, trinervate-palmate, glabrous, with ciliated margin. It measures 7 to 9 mm long and 5-6 mm wide.
First leaves
The first leaves are rounded, truncate then cordate at the base, crenate-serrated margin ciliated with many stellate hairs. The two sides are covered with stellated hairs.
General habit
Plant erect, branched as from the base, annual to multiannual, can reach up to 1 m high.
Underground system
Taproot system.
Stem
The stem is cylindrical section, pubescent (erect hairs, golden very short hairs, a few stellate hairs).
Leaf
The leaves are simple and alternate. The petiole is framed by hirsute stipules, linear to filiform of 5 to 7 mm long. The petiole, of 2 to 5 cm long is covered with erect hair. The lamina is oval, with cordiform base, progressively tapering into a sharp point ends, measuring 5-10 cm long and 3-7 cm wide. The margin is crenate-serrated. The two sides are covered with a dense pubescence of long simple hairs mixed with stellate hairs. Venation is palmate.
Inflorescence
Flowers, whitish to pale yellow, are solitary or grouped by 2-10 in axillary or terminal fascicles. Flower stalks are hirsute. They measure 1 to 3 cm long.
Fruit
The fruit is composed of 5 mericarps with smooth cover and top in a wide and curved beak.
Seed
Each mericarp contains only one dark brown seed, measuring 1.5 mm wide and 2 mm high.
Sida urens is an erect, branched plant, completely covered with hirsute hair, annual to multiannual, can reach up to 1 m high. The leaves simple and alternate are ovate with cordate and long-acuminate base and serrated margin. They are covered on two sides with simple and stellate hairs. The pale yellow flowers are solitary or grouped in fascicles, in axillary or terminal position.The fruit is composed with 5 mericarps with large curved beak and each containing a dark brown seed.
Cotyledons
The cotyledons have a densely bristling petiole. It measures 1.5 to 2 cm long and exceeds the lamina. The lamina is oval, trinervate-palmate, glabrous, with ciliated margin. It measures 7 to 9 mm long and 5-6 mm wide.
First leaves
The first leaves are rounded, truncate then cordate at the base, crenate-serrated margin ciliated with many stellate hairs. The two sides are covered with stellated hairs.
General habit
Plant erect, branched as from the base, annual to multiannual, can reach up to 1 m high.
Underground system
Taproot system.
Stem
The stem is cylindrical section, pubescent (erect hairs, golden very short hairs, a few stellate hairs).
Leaf
The leaves are simple and alternate. The petiole is framed by hirsute stipules, linear to filiform of 5 to 7 mm long. The petiole, of 2 to 5 cm long is covered with erect hair. The lamina is oval, with cordiform base, progressively tapering into a sharp point ends, measuring 5-10 cm long and 3-7 cm wide. The margin is crenate-serrated. The two sides are covered with a dense pubescence of long simple hairs mixed with stellate hairs. Venation is palmate.
Inflorescence
Flowers, whitish to pale yellow, are solitary or grouped by 2-10 in axillary or terminal fascicles. Flower stalks are hirsute. They measure 1 to 3 cm long.
Fruit
The fruit is composed of 5 mericarps with smooth cover and top in a wide and curved beak.
Seed
Each mericarp contains only one dark brown seed, measuring 1.5 mm wide and 2 mm high.
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
Life Cycle
Life cycle
Annual
Perenial
Mayotte : Sida urens flowers from March to August and fruits from May to October.
Wiktrop
| Attributions | Wiktrop |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
There is content in another language. Please click here to read it. (Français)
Reproduction
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Sida urens is a perennial to annual plant, reproducing by seed.
Wiktrop
| Attributions | Wiktrop |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
Morphology
Growth form
Erected
Leaf arrangement
Alternate
Leaf type
Simple
Type of prefoliation
Leaf ratio medium
Latex
Without latex
Stem section
Round
Root type
Taproot
Hollow or solid stem
Solid stem
Stipule type
Lanceolate stipule
Leaf attachment type
with petiole
Fruit type
Capsule mericarp
Lamina base
cordate
Lamina margin
largely dentate
dentate-crenate
Lamina apex
acuminate
Upperface pilosity
Dense hairy
Upperface hair type
Stellate
Lowerface pilosity
Dense hairy
Lowerface hair type
Stellate
Simple leaf type
Lamina elliptic
Lamina section
embossed
Lamina Veination
Palmate
Flower color
Yellow
Inflorescence type
Pedonculate glomerule
Terminal solitary flower
Axillary solitary flower
Glomerulate
Stem pilosity
Dense hairy
Stem hair type
Hispidus
Life form
Broadleaf plant
Look Alikes
| Lamina with cordiform base | Pubescent stem | S. urens | ||
| Stem with glandular hairs (sticky plant) | S. glabra | |||
| Tomentose stem | S. cordifolia | |||
| Lamina with wedged base | long petiole | lamina with flat venation, dark green | M. coromandelianum | |
| lamina with venation slightly marked, pale green | S. alba | |||
| short petiole | Phyllotaxy disticous, lanceolate lamina, pedicel as long as petiole | S. acuta | ||
| Phyllotaxy helical, elliptic or oboval lamina pedicel longer than petiole |
Width of lamina < 1,2 cm | S. rhombifolia | ||
| width of lamina : 1 to 3 cm | S. rhombifolia subsp. alnifolia | |||
Wiktrop
| Attributions | Wiktrop |
| 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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Madagascar : Sida urens is a common plant in fields and roadsides.
Mauritius: absent.
Mayotte: Sida urens is an exotic species commonly naturalized in xerophilic secondarized environments, especially near the coast. It is also found in crops, wastelands, and pastures of mesophilic and hygrophilic regions.
Wiktrop
| Attributions | Wiktrop |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
No Data
📚 Habitat and Distribution
General Habitat
Habitat
Terrestrial
Description
Geographical distibution
Madagascar
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Worldwide distribution
Sida urens occurs in tropical America and Africa, and in the Indian Ocean in Madagascar and Reunion.
Thomas Le Bourgeois
| Attributions | |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
No Data
📚 Occurrence
No Data
📚 Demography and Conservation
Threats
Local harmfulness
Madagascar: Sida urens is a weed, slightly abundant in Maize crops
Mauritius: Absent.
Mayotte: Sida urens is a frequent weed, present in 15% of cultivated plots, especially in fruit crops, ylang plantations and food crops.
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
Uses
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Medicinal: Sida urens is an antibacterial agent against dental caries. It is also an antifungal agent that could prevent the colonization of food by fungi.
Wiktrop
| Attributions | Wiktrop |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
No Data
📚 Information Listing
Global Biodiversity Information Facility (GBIF)
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Thomas Le Bourgeois
| Attributions | |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
References
- Johnson, D.E. 1997. Les adventices en riziculture en Afrique de l'Ouest. ADRAO/WARDA, Bouaké, Côte-d'Ivoire.
- Barthelat, F. 2019. La Flore illustrée de Mayotte. Meze, Paris, France, Collection Inventaires et Biodiversité, Biotope – Muséum national d’Histoire naturelle. 687 p.
- Huat, J., Nagy, M., Carpente, A., Schwartz, M., Le Bourgeois, T. & Marnotte, P. 2021. Guide de la flore spontanée des agrosystèmes de Mayotte. Montpellier, Cirad. 150 p.
- Merlier, H., Montégut, J. 1982. Adventices tropicales. ORSTOM-GERDAT-ENSH, Montpellier, France.
- Hutchinson, J., Dalziel, J.M., Keay, R.W.J., Hepper, F.N. 1958. Flora of west tropical africa. The Whitefriars Press, London & Tonbridge, Great Britain.
Information Listing > References
- Johnson, D.E. 1997. Les adventices en riziculture en Afrique de l'Ouest. ADRAO/WARDA, Bouaké, Côte-d'Ivoire.
- Barthelat, F. 2019. La Flore illustrée de Mayotte. Meze, Paris, France, Collection Inventaires et Biodiversité, Biotope – Muséum national d’Histoire naturelle. 687 p.
- Huat, J., Nagy, M., Carpente, A., Schwartz, M., Le Bourgeois, T. & Marnotte, P. 2021. Guide de la flore spontanée des agrosystèmes de Mayotte. Montpellier, Cirad. 150 p.
- Merlier, H., Montégut, J. 1982. Adventices tropicales. ORSTOM-GERDAT-ENSH, Montpellier, France.
- Hutchinson, J., Dalziel, J.M., Keay, R.W.J., Hepper, F.N. 1958. Flora of west tropical africa. The Whitefriars Press, London & Tonbridge, Great Britain.
Etude floristique et phytoécologique des adventices des complexes sucriers de Ferké 1 et 2, de Borotou-Koro et de Zuenoula, en Côte d'Ivoire
TL
Thomas Le BourgeoisImages
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Herbarium pictures ReCOLNAT: https://explore.recolnat.org/search/botanique/simplequery=Sida%2520urens
Thomas Le Bourgeois
| Attributions | |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
No Data
🐾 Taxonomy
| Root | Root |
| Kingdom | Plantae |
| Phylum | Tracheophyta |
| Class | Magnoliopsida |
| Order | Malvales |
| Family | Malvaceae |
| Genus | Sida |
| Species | Sida urens L. |
📊 Temporal Distribution
📷 Related Observations
