Code
ALZOV
Growth form
broadleaf
Biological cycle
annual
Habitat
terrestrial
synonym | Alysicarpus nummulariifolius sensu DC. |
synonym | Alysicarpus ovalifolius (Schumach. & Thonn.) J.Léonard |
synonym | Alysicarpus paradoxus Baill. |
synonym | Alysicarpus scaber Span. |
synonym | Alysicarpus vaginale sensu auct.mult. |
synonym | Alysicarpus vaginalis sensu Huang & H.Ohashi |
synonym | Desmodium ovalifolium (Schum.) Walp. |
synonym | Hedysarum bupleurifolium "sensu Willd., non L." |
synonym | Hedysarum ovalifolium Schum. |
synonym | Hedysarum vaginale (L.) DC. |
Malagasy |
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Global description
Alysicarpus ovalifolius is a plant with simple alternate leaves, oblong to lanceolate in shape. The base of the petiole is framed by two lanceolate stipules, papery and strongly striated longitudinally. The inflorescences are loose clusters, 3 to 7 pairs of white and pink flowers. The tines of the calyx are not nested and are as long as the first article of the fruit. Of the 10 stamens, 9 have their filaments fused in groove. The fruit is a linear pod consisting 6-8 rectangular sections without restriction between them. The wall is crosslinked, and finely pubescent.Attributions | Wiktrop |
Contributors | |
Status | UNDER_CREATION |
Licenses | CC_BY |
References |
Northern Cameroon: A. ovalifolius is a weed of mid and end of the crop cycle. Germination takes place in June when the rains become abundant. Flowering starts in August and lasts until October. Fruiting takes place from September to November, until the plant dries out at the beginning of the dry season. This late flowering does not facilitate early identification.
Madagascar : Flowering is from January to June.
Attributions | Wiktrop |
Contributors | |
Status | UNDER_CREATION |
Licenses | CC_BY |
References |
A. ovalifolius is an annual species. It is only propagated by seeds. Seeds remain inside the pod segments and are dispersed by water, animals and tillage equipment.
Attributions | Wiktrop |
Contributors | |
Status | UNDER_CREATION |
Licenses | CC_BY |
References |
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 |
Attributions | Wiktrop |
Contributors | |
Status | UNDER_CREATION |
Licenses | CC_BY |
References |
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This species is very difficult to differentiate at the vegetative stage, from other Alysicarpus spp. Such as the A, rugosus. and A. glumaceus. Only the shape of the calyx, color of the flower and especially the shape of the fruit are used to identify them with certainty.
Attributions | Wiktrop |
Contributors | |
Status | UNDER_CREATION |
Licenses | CC_BY |
References |
Northern Cameroon: Alysicarpus ovalifolius is a common ruderal species on roadsides and in vacant lots. It is also a common weed of annual crops. It grows mainly in the Sudano-Sahelian regions. It presents no particular preference for soil, provided it is not too filtering with a sandy superficial degraded horizon.
Madagascar: The species thrives on lateritic soils and humiferous ferruginous soils, alluvial soils,clay soils, quite fertile, in sunny places. It is a weed of rainfed crops in semi-intensive cropping systems based on cotton, peanut, upland rice or corn. It grows at the edge of fields and roads, in fallow, disturbed sites and degraded savannas in semi-arid and sub-humid regions, until 1000 m of elevation.
Attributions | Wiktrop |
Contributors | |
Status | UNDER_CREATION |
Licenses | CC_BY |
References |
Origine
Africa
Worldwide distribution
Attributions | Wiktrop |
Contributors | |
Status | UNDER_CREATION |
Licenses | CC_BY |
References |
Local harmfulness
North-Cameroon: Alysicarpus ovalifolius is rarely abundant in cultures although it is present in 40% of plots grown in the Sudano-Sahelian region. It is somewhat less common in the region of Sahelo-Sudanian and is no longer present in 10% of the plots in the Sudanian region. It seems to tolerate drier ecological conditions than A. rugosus, but it is scheduled to meet these two species in the same plots. In northern Cameroon, A. ovalifolius is considered as a regional species.Attributions | Wiktrop |
Contributors | |
Status | UNDER_CREATION |
Licenses | CC_BY |
References |
Attributions | |
Contributors | |
Status | UNDER_CREATION |
Licenses | CC_BY |
References |
Attributions | |
Contributors | |
Status | UNDER_CREATION |
Licenses | CC_BY |
References |
Herbarium pictures ReCOLNAT: https://explore.recolnat.org/search/botanique/simplequery=Alysicarpus%2520ovalifolius
Attributions | |
Contributors | |
Status | UNDER_CREATION |
Licenses | CC_BY |
References |
Root | Root |
Kingdom | Plantae |
Phylum | Tracheophyta |
Class | Magnoliopsida |
Order | Fabales |
Family | Fabaceae |
Genus | Alysicarpus |
Species | Alysicarpus ovalifolius (Schum.) Leonard |