Code
AMMAU
Growth form
Broadleaf
Biological cycle
Annual
Habitat
Marshland
🗒 Synonyms
| synonym | Ammannia aegyptica Willd. |
| synonym | Ammannia auriculata var. elata (A.Fernandes) A. Fernandes |
| synonym | Ammannia hyrcanica Fisch. ex Steud. |
| synonym | Ammannia latifolia Walp. |
| synonym | Ammannia longipes Wright apud Sauvalle |
| synonym | Nesaea transvaalica A. Fernandes |
🗒 Common Names
| No Data |
📚 Overview
Description
Global description
Ammania auriculata is an erect branched annual herb that measures between 30 and 60 cm tall. The lanceolate linear leaves, opposite decussed, are sessile, arranged in a horizontal plane and regularly staggered. The small, pink flowers are grouped into loose inflorescences in the axils of the leaves. The fruit is a capsule.
General habit
An erect annual branched herb that is 30-60 cm tall.
Underground system
The root is a taproot.
Stem
The stem is erect, branched, square in section, glabrous.
Leaf
The leaves are simple, opposite decussed, located in a horizontal plane. They are regularly spaced and staggered on the main stem and secondary branches. They are linear lanceolate, sessile, clearly auriculate at the base, in acute corner at the top, margin entire, glabrous on both sides. The blade has a prominent central vein.
Inflorescence
The flowers are grouped in small, loose cymes in the axils of the leaves, with peduncle 3 - 9 mm long.
Flower
The pedicels are filiform, 1-6 mm long. The 4 rounded petals are pink in color. The style is 2 times longer than the ovary. Stamens are 4 to 8.
Fruit
The fruit is a capsule 2.5 to 3 mm in diameter with a circular opening containing a large amount of small seeds.
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
📚 Nomenclature and Classification
No Data
📚 Natural History
Look Alikes
Characters to distinguish several Ammannia species
| Base of the lamina | Petals | Style | Peduncle | Fruit | Species |
| Attenuate, truncate | Absent | Shorter than the ovary | 0-1 mm | 1-2 mm | A. baccifera |
| Auriculate | Present | 1/2 as long as the ovary | 1-2 mm | 1,5 mm | A. multiflora |
| Auriculate | Present | 1/2 to 1 as long as the ovary | 1,5-3 mm | 1,5 mm | A. prieureana |
| Auriculate | Present | As long as or longer than the ovary | 6-18 mm | 2,5 - 3,5 mm | A. auriculata |
| Auriculate | Present | As long as or longer than the ovary | 0-9 mm | 3,5 - 5 mm | A. coccinea |
Thomas Le Bourgeois
| Attributions | |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
Critères de distinction de quelques Ammannia
| Base du limbe | Pétales | Style | Pédoncule | Fruit | Espèce |
| Atténuée, tronquée | Absents | Plus court que l'ovaire | 0-1 mm | 1-2 mm | A. baccifera |
| Auriculée | Présents | 1/2 longueur de l'ovaire | 1-2 mm | 1,5 mm | A. multiflora |
| Auriculée | Présents | 1/2 à 1 fois l'ovaire | 1,5 - 3 mm | 1,5 mm | A. prieureana |
| Auriculée | Présents | Presque 2 fois plus long que l'ovaire | 6-18 mm | 2,5 - 3,5 mm | A. auriculata |
| Auriculée | Présents | Aussi long ou plus long que l'ovaire | 0-9 mm | 3,5 - 5 mm | A. coccinea |
Thomas Le Bourgeois
| Attributions | |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
No Data
📚 Habitat and Distribution
General Habitat
Worldwide distribution
Ammania auriculata is present in all tropical and sub-tropical regions.
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
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Local harmfulness
Burkina Faso: rare but abundant when it is present.
Cote d'Ivoire: rare and scanty.
Ghana: frequent and scanty.
Mali: rare but abundant when it is present.
Mauritius: Absentee
Reunion: Absentee
Senegal: frequent and generally abundant.
Thomas Le Bourgeois
| Attributions | |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
No Data
📚 Uses and Management
Management
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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
- Hutchinson, J., Dalziel, J.M., Keay, R.W.J., Hepper, F.N. 1954. Flora of west tropical africa. The Whitefriars Press, London & Tonbridge, Great Britain.
- Grard, P., et al. (2012). AFROweeds V.1.0: African weeds of rice Montpellier, France & Cotonou, Bénin, Cirad-AfricaRice eds.
- Johnson, D.E. 1997. Les adventices en riziculture en Afrique de l'Ouest. ADRAO/WARDA, Bouaké, Côte-d'Ivoire.
Information Listing > References
- Hutchinson, J., Dalziel, J.M., Keay, R.W.J., Hepper, F.N. 1954. Flora of west tropical africa. The Whitefriars Press, London & Tonbridge, Great Britain.
- Grard, P., et al. (2012). AFROweeds V.1.0: African weeds of rice Montpellier, France & Cotonou, Bénin, Cirad-AfricaRice eds.
- Johnson, D.E. 1997. Les adventices en riziculture en Afrique de l'Ouest. ADRAO/WARDA, Bouaké, Côte-d'Ivoire.
Images
Herbarium pictures ReCOLNAT: https://explore.recolnat.org/search/botanique/simplequery=Ammannia%2520auriculata
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 | Magnoliopsida |
| Order | Myrtales |
| Family | Lythraceae |
| Genus | Ammannia |
| Species | Ammannia auriculata Willd. |
📊 Temporal Distribution
📷 Related Observations
