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WIKTROP - Weed Identification and Knowledge in the Tropical and Mediterranean areas
WIKTROP - Weed Identification and Knowledge in the Tropical and Mediterranean areas
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Alysicarpus rugosus (Willd.) DC.

Accepted
Alysicarpus rugosus (Willd.) DC.
Alysicarpus rugosus (Willd.) DC.
Alysicarpus rugosus (Willd.) DC.
Alysicarpus rugosus (Willd.) DC.
Alysicarpus rugosus (Willd.) DC.
Alysicarpus rugosus (Willd.) DC.
Alysicarpus rugosus (Willd.) DC.
Alysicarpus rugosus (Willd.) DC.
Alysicarpus rugosus (Willd.) DC.
Alysicarpus rugosus (Willd.) DC.
Alysicarpus rugosus (Willd.) DC.
Alysicarpus rugosus (Willd.) DC.
Alysicarpus rugosus (Willd.) DC.
Alysicarpus rugosus (Willd.) DC.
Alysicarpus rugosus (Willd.) DC.
Alysicarpus rugosus (Willd.) DC.
Alysicarpus rugosus (Willd.) DC.
Alysicarpus rugosus (Willd.) DC.
Alysicarpus rugosus (Willd.) DC.
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🗒 Synonyms
synonymAlysicarpus longifolius "sensu Span., non Wight & Arn."
synonymAlysicarpus longifolius Sensu Span., non Wight & Arn.
synonymAlysicarpus rugosus subsp. rugosus
synonymAlysicarpus violaceus (ensu (Forssk.) "Schindl., p.p."
synonymAlysicarpus violaceus Schindl.
synonymAlysicarpus violaceus Sensu (Forssk.)Schindl., p.p.
synonymAlysicarpus wallichii Wight & Arn.
synonymFabricia rugosa (Willd.) Kuntze
synonymHedysarum rugosum Willd.
🗒 Common Names
Malagasy
  • Fokolahy (Ouest, Moyen-ouest)
📚 Overview
Overview
Brief
Code

ALZRU

Growth form

broadleaf

Biological cycle

annual

Habitat

terrestrial

Thomas Le Bourgeois
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    Diagnostic Keys
    Description

    Global description 

    Alysicarpus rugosus is an erect plant or spread on the ground, with simple oblong to lanceolate alternate leaves. The base of the petiole is framed by two lanceolate, papery and longitudinally strongly striated stipules, Inflorescences occur as clusters, composed of numerous pairs of orange and red flowers near each other. The sepals are interwoven and rounded at the base. Of the 10 stamens, 9 have their filaments fused in groove. The fruit is a pod, highly constricted between each of the 3-5 articles. These are suborbicular and have a highly transversely striated wall.

    Cotyledons

    The cotyledons are elliptical and sub sessile. The leaf blade is 5 mm long and 2 mm wide.

    First leaves

    The first leaves are alternate and simple. They are elliptical to lanceolate. They are held by a petiole, 3 to 10 mm long, framed at the base by two papery lanceolate stipules, 5 mm long, marked with numerous longitudinal veins. The underside of the blade is finely reticulate.

    General habit

    The growth habit is spread on the soil or erect. The main axis is branched at the base and can measure 60 cm to over one meter in height for upright plants or 40 cm in diameter for spreading plants.

    Underground system

    The plant has a taproot system.

    Stem

    The stem is cylindrical and solid. It is pubescent, sparsely covered with rigid white hairs and marked with longitudinal striations.

    Leaf

    The leaves are alternate and simple. The lamina is quite polymorphic, can be oblong, lanceolate to linear and measures 5 to 12 cm long and 8 to 20 mm wide. The base is rounded, sometimes slightly cordate. The apex is broad with a short mucro or acute according to the shape of the lamina. The margin is fully lined with a few lashes. The blade is marked with 5 to 7 pairs of slightly arched veins. The underside is crisscrossed by a network of fine reticulations. The upper side is glabrous, while the lower face is covered with a shaved pubescence. The leaf is held by a long-petiole, 3 to 9 mm, whose base is bordered by two linear papery stipules,   6 mm long and strongly ribbed lengthwise. At the base of the blade are two filiform stipels, barely visible, 0.5 mm long.

    Inflorescence

    The flowers are assembled into many pairs, forming long terminal clusters, 10 to 25 cm. The internodes between flowers are as long as the flowers themselves.

    Flower

    The flowers are 5 mm long. The calyx is divided into 5 nested peaks, base rounded and 6 mm long. It is finely pubescent. The corolla consists of an upper orange yellow petal (standard), a lower petal (keel) and 2 lateral orange-red petals (wings). There are 10 stamens, of which 9 have their filaments folded, the tenth being free.

    Fruit

    The fruits are pods, 8 to 12 mm long, consisting of 3-5 articulated and strongly strangled segments at the level of their articulation. 3 or 4 segments are included in the calyx where only the last exceeds. They are suborbicular in shape; the last is surmounted by a spout. They measure 2.5 mm in diameter. The outer wall is highly crisscrossed with numerous transverse wrinkles. Each segment contains one seed.

    Seed

    Seeds are oblong, 1.2 mm long.
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      No Data
      📚 Natural History
      Life Cycle

      Life cycle

      Annual
      Annual
      Cyclicity

      Northern Cameroon: Alysicarpus rugosus occurs throughout the crop cycle, but germination begins in June. Beyond this period, new emergences would occur after cultural operations (weeding and ridging) but remain very small. Flowering occurs from August to October and fruiting is staggered from September to November until the plant dries out at the beginning of the dry season. The complete development cycle is done in three months.
      Madagascar : A. rugosus flowers during the rainy season from December to April.


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        Reproduction

        A. rugosus is an annual species. It only propagate by seed. The seeds remain included in the articles of the pods and are spread by water, animals and wind.


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          Morphology

          Growth form

          Erected
          Erected
          Prostrated
          Prostrated

          Type of prefoliation

          Leaf ratio medium
          Leaf ratio medium
          Broad leaves
          Broad leaves
          Narrow leaf
          Narrow leaf
          Linear leaves
          Linear leaves

          Latex

          Without latex
          Without latex

          Root type

          Taproot
          Taproot

          Stipule type

          Lanceolate stipule
          Lanceolate stipule

          Pod type

          Articulated pod
          Articulated pod

          Cotyledon type

          linear
          linear
          elliptic
          elliptic

          Lamina base

          acute
          acute
          cordate
          cordate

          Lamina margin

          hairy
          hairy
          entire
          entire

          Lamina apex

          attenuate
          attenuate
          acute
          acute
          rounded
          rounded

          Simple leaf type

          Lamina linear
          Lamina linear
          Lamina elliptic
          Lamina elliptic

          Flower color

          Purple
          Purple
          Red flowers
          Red flowers
          Orange
          Orange

          Stem pilosity

          Dense hairy
          Dense hairy

          Life form

          Broadleaf plant
          Broadleaf plant
          Look Alikes

          Distinctive characters of Alysicarpus spp. at vegetative stage

          Habit Lamina Petiole Base and apex of the lamina
          Biological cycle
          Species
          prostrate ovate rounded 4-12 (15) mm cordate base,  emarginate apex perennial A. vaginalis
          prostrate ovate rounded 4-7 mm cordate base, obtuse apex +- mucronate annual or biannual A. monilifer
          erect ascending ovate rounded 2,5-7 mm cordate base, obtuse apex +- mucronate annual A. glumaceus
          erect ascending ovate rounded (basal leaves) and lanceolate (upper leaves)   rounded to cordate base arrondie, obtuse to acute apex annual (perennial) A. ovalifolius
          prostrate or erect lanceolate membranous 3-9 mm rounded base, acute apex +- mucronate annual (perennial) A. rugosus
          erect or prostrate lanceolate coriaceous 2-9 mm cordate base, acute apex +- mucronate perennial A. Zeyheri

           

          Distinctiive characters of Alysicarpus spp. at fruiting stage

          Pod shape
          Pod length
          Pod articles Calyx Lamina Species
          no constriction between articles 12-25 mm smooth, 4-6 (8) highly exceeding the calyx teeth = first article ovate rounded A. vaginalis
          no constriction between articles 12-25 mm slightly reticulate, 4-7 highly exceeding the calyx teeth = first article ovate at base, lanceolate at apex A. ovalifolius
          strong constriction between articles 5-15 mm well reticulate, 4-7 highly exceeding the calyx teeth > first article ovate rounded A. glumaceus
          strong constriction between articles 5-15 mm horizontally wrinkled, 3-4 (6) teeth > first article ovate rounded A. monilifer
          strong constriction between articles 5-15 mm well reticulate, 3-5 inserted in the calyx teeth > first article lanceolate membranous A. rugosus
          strong constriction between articles 7-15 mm slightly reticulate, 2-6 highly exceeding the calyx teeth > first article lanceolate coriaceous A. Zeyheri



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            This species is very difficult to differentiate from other Alysicarpus (A. ovalifolius, A. glumaceus) at the vegetative stage. Only the shape of the calyx, color of the flower and especially the shape of the fruit are used to identify with certainty.


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              Ecology

              Northern Cameroon: Alysicarpus rugosus occurs as a ruderal species and as a weed of crops. It grows mainly in the Sudanese region, where annual rainfall is between 1,200 and 1,500 mm. In this region, it is present in 30% of cultivated land. It grows on soil that retain moisture such as well-structured ferruginous soils and the planosols. It also appears, purposefully, in the driest regions on high water retention soil such as fersialitic soil or the vertisols. It can then be found in association with A. ovalifolius.
              Madagascar: A. rugosus grows on alluvial soils, humiferous ferruginous soil, quite fertile, in sunny places or lightly shaded. It is a weed of crops in semi-intensive cropping systems based on corn and cotton. It grows in fallow, in degraded savannahs, on the edges of crops and roads in semi-arid and sub-humid until 1000 m of elevation, in the Southwest , West and Middle West regions of Madagascar.


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                No Data
                📚 Habitat and Distribution
                General Habitat

                Habitat

                Terrestrial
                Terrestrial
                Origine

                Alysicarpus rugosus originates from Africa.
                 
                Worldwide distribution

                Tropical and Austral Africa, Madagascar, India, China, South East Asia, Indonésia, Australia.

                Thomas Le Bourgeois
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                  No Data
                  📚 Occurrence
                  No Data
                  📚 Demography and Conservation
                  Risk Statement

                  Local harmfulness

                  Benin: A. rugosus is a rare and scarce species.
                  Burkina Faso: A. rugosus is a common and little abundant species.
                  Northern Cameroon: A. rugosus is a regional weed.
                  Ivory Coast: A. rugosus is a rare and scarce species.
                  Madagascar: A. rugosus is a weed not frequent and rarely abundant in crops. It does not present any particular difficulty. It is quite common but often scarce in lowlands with fertile soils in dry areas. It can sometimes be locally abundant in the fertile alluvial soils, devoted to cotton or maize crops.
                  Senegal: A. rugosus is a rare and scarce species.
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                    No Data
                    📚 Uses and Management
                    Management

                    Global control

                    Recommandations for the control of annual broadleaf weeds in irrigated and lowland rice in Africa: http://portal.wikwio.org/document/show/20

                    Local control

                    Madagascar: This species is controlled with manual weeding in cropping systems based on cotton or corn.
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                      📚 Information Listing
                      References
                      1. 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.
                      1. Hutchinson J., Dalziel J. M., Keay R. W. J. & Hepper F. N., 1958. Flora of West Tropical Africa. Vol. I part. 2. 2ème éd. The Whitefriars Press ed., London & Tonbridge, 828 p.
                      1. 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, 241 p.
                      1. Le Bourgeois, T. and H. Merlier (1995). Adventrop - Les adventices d'Afrique soudano-sahélienne. Montpellier, France, Cirad. 640 p.
                      1. Berhaut J., 1967. Flore du Sénégal. 2ème éd. Clairafrique éd., Dakar, Sénégal, 485p.
                      1. DU PUY D. J., LABAT J. N., RABEVOHITRA R., VILLIERS J. F., BOSSER J. & MOAT J., 2002 – The Leguminoseae of Madagascar. ROYAL BOTANIC GARDENS, Kew, 2002, p 624-626.
                      1. Braun M., Burgstaller H., Hamdoun A. M. & Walter H., 1991. Common weeds of Central Sudan. GTZ, Verlag Josef Margraf ed. Scientific Book, Weikersheim, Germany, 329p.
                      2. Flora of China http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=242302523
                      3. Akoégninou, A., van der Burg, W.J. & van der Maesen, L.G. 2006. Flore analytique du Bénin. Cotonou, Bénin, Wageningen, Pays-Bas, Backhuis Publishers.
                      Information Listing > References
                      1. 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.
                      2. Hutchinson J., Dalziel J. M., Keay R. W. J. & Hepper F. N., 1958. Flora of West Tropical Africa. Vol. I part. 2. 2ème éd. The Whitefriars Press ed., London & Tonbridge, 828 p.
                      3. 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, 241 p.
                      4. Le Bourgeois, T. and H. Merlier (1995). Adventrop - Les adventices d'Afrique soudano-sahélienne. Montpellier, France, Cirad. 640 p.
                      5. Berhaut J., 1967. Flore du Sénégal. 2ème éd. Clairafrique éd., Dakar, Sénégal, 485p.
                      6. DU PUY D. J., LABAT J. N., RABEVOHITRA R., VILLIERS J. F., BOSSER J. & MOAT J., 2002 – The Leguminoseae of Madagascar. ROYAL BOTANIC GARDENS, Kew, 2002, p 624-626.
                      7. Braun M., Burgstaller H., Hamdoun A. M. & Walter H., 1991. Common weeds of Central Sudan. GTZ, Verlag Josef Margraf ed. Scientific Book, Weikersheim, Germany, 329p.
                      8. Flora of China http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=242302523
                      9. Akoégninou, A., van der Burg, W.J. & van der Maesen, L.G. 2006. Flore analytique du Bénin. Cotonou, Bénin, Wageningen, Pays-Bas, Backhuis Publishers.

                      Etude floristique et phytoécologique des adventices des complexes sucriers de Ferké 1 et 2, de Borotou-Koro et de Zuenoula, en Côte d'Ivoire

                      Thomas Le Bourgeois
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                      Thomas Le Bourgeois
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                        🐾 Taxonomy
                        📊 Temporal Distribution
                        📷 Related Observations
                        👥 Groups
                        WIKTROP - Weed Identification and Knowledge in the Tropical and Mediterranean areasWIKTROP - Weed Identification and Knowledge in the Tropical and Mediterranean areas
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