Code
PCYCO
Growth form
Broadleaf
Biological cycle
Annual
Habitat
Terrestrial
🗒 Synonyms
| synonym | Achyranthes corymbosa L. |
| synonym | Celosia corymbosa (L.) Retz. |
| synonym | Hagaea aristata Sw. |
| synonym | Hagaea aristata Sweet |
| synonym | Illecebrum subulatum Pers. |
| synonym | Lahaya corymbosa (L.) Roem. & Schult. |
| synonym | Lahaya corymbosa (L.) Schult. |
| synonym | Lahaya spadicea (Willd.) Roem. & Schult. |
| synonym | Lahaya spadicea Schult. |
| synonym | Mollia aristata Ait. |
| synonym | Mollia aristata W.T.Aiton |
| synonym | Mollia corymbosa (L.) Willd. |
| synonym | Mollia spadicea Willd. |
| synonym | Paronychia subulata DC. |
| synonym | Polia arenaria Lour. |
| synonym | Polium arenarium (Lour.) Stokes |
| synonym | Polycarpa breviflora (Gand.) Kuntze |
| synonym | Polycarpa brevifolia Kuntze |
| synonym | Polycarpa corymbosa (L.) Kuntze |
| synonym | Polycarpaea atherophora Steud. |
| synonym | Polycarpaea brasiliensis var. ramosissima Camb. in St. Hil. |
| synonym | Polycarpaea breviflora Gand. |
| synonym | Polycarpaea brevifolia O.F. Müll. |
| synonym | Polycarpaea corymbosa var. brevifolia Domin |
| synonym | Polycarpaea corymbosa var. corymbosa |
| synonym | Polycarpaea corymbosa var. typica Domin |
| synonym | Polycarpaea densiflora Wall. |
| synonym | Polycarpaea fallax J. Gay ex Oliver |
| synonym | Polycarpaea filifolia Muschl. |
| synonym | Polycarpaea grandiflora (Pax) A.Chev. |
| synonym | Polycarpaea humifusa J. Gay ex Oliver |
| synonym | Polycarpaea indica Lam. |
| synonym | Polycarpaea nebulosa Lakela |
| synonym | Polycarpaea spadicea Lam. |
| synonym | Polycarpaea subulata Wight & Arn.FF |
🗒 Common Names
| Malagasy |
|
📚 Overview
Description
First leaves
The first leaves are arranged in a rosette at the base of the young plant. These leaves are carried by a short petiole and have anelliptical to obovate lamina. They are 7 to 8 mm long and 1 to 2 mm wide. They are quickly deciduous.
General habit
The plant is erect. It is abundantly branched and can measure 20 to 50 cm high.
Underground system
The plant has a taproot system.
Stem
The stem is cylindrical and full. It is pubescent, with short woolly white hairs.
Leaf
The leaves are opposite and simple. Along the stem, leaves often appear as verticillate, after further development of axillary buds. The leaves are sessile. Their base is framed by two papery linear stipules, 3 mm long. The lamina is linear, 1 to 3 cm long and 1 to 3 mm wide. The apex is tapered acute, the base is slightly reduced. The margin is entire and both sides are glabrous to very finely hairy. Only the midrib is visible.
Inflorescence
The flowers are assembled in diffuse terminal cymes, ending in plateau.
Flower
Each flower consists of five linear to lanceolate sepals, fused at the base. Their summit is very acute, often divided into two. The sepals measure 2.5 to 3.5 mm long. They are glabrous or bear some hairs along the midrib. They are silver, often tinged with pink or red. The petals are very small, obovate in shape. The stamens, very short, reach the top of the petals.
Fruit
The fruits are dehiscent capsules, with 3 loculus. At maturity, the three valves open at the top. The capsule is obovoid, 1 mm long and 0.5 mm wide. The walls are smooth, papery and brown. Each fruit contains a dozen of seeds.
Seed
The seeds are shaped like small orange segments, measuring 0.4 mm long. The seed coat is brown and very tuberculate.
Global description
Polycarpaea corymbosa is a highly branched plant with linear sessile leaves. They are opposite, even appearing verticillate. At the base of the leaves there are linear stipules. The flowers are arranged in terminal cymes diffuse at the top in plateau. They are silvery, tinged with pink.First leaves
The first leaves are arranged in a rosette at the base of the young plant. These leaves are carried by a short petiole and have anelliptical to obovate lamina. They are 7 to 8 mm long and 1 to 2 mm wide. They are quickly deciduous.
General habit
The plant is erect. It is abundantly branched and can measure 20 to 50 cm high.
Underground system
The plant has a taproot system.
Stem
The stem is cylindrical and full. It is pubescent, with short woolly white hairs.
Leaf
The leaves are opposite and simple. Along the stem, leaves often appear as verticillate, after further development of axillary buds. The leaves are sessile. Their base is framed by two papery linear stipules, 3 mm long. The lamina is linear, 1 to 3 cm long and 1 to 3 mm wide. The apex is tapered acute, the base is slightly reduced. The margin is entire and both sides are glabrous to very finely hairy. Only the midrib is visible.
Inflorescence
The flowers are assembled in diffuse terminal cymes, ending in plateau.
Flower
Each flower consists of five linear to lanceolate sepals, fused at the base. Their summit is very acute, often divided into two. The sepals measure 2.5 to 3.5 mm long. They are glabrous or bear some hairs along the midrib. They are silver, often tinged with pink or red. The petals are very small, obovate in shape. The stamens, very short, reach the top of the petals.
Fruit
The fruits are dehiscent capsules, with 3 loculus. At maturity, the three valves open at the top. The capsule is obovoid, 1 mm long and 0.5 mm wide. The walls are smooth, papery and brown. Each fruit contains a dozen of seeds.
Seed
The seeds are shaped like small orange segments, measuring 0.4 mm long. The seed coat is brown and very tuberculate.
Wiktrop
| Attributions | Wiktrop |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
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No Data
📚 Nomenclature and Classification
No Data
📚 Natural History
Life Cycle
Life cycle
Annual
Cyclicity
Northern Cameroon: Polycarpaea corymbosa is very rare in the beginning of the cycle, it is a weed of mid and especially the end of the crop cycle. Germination takes place in July. Flowering occurs as from the end of August and continues until October. Fruiting occurs in October-November until the plant dries out early in the dry season. This late cycle makes P. corymbosa slightly constrained by cultural operations such as weeding and mounding. The cycle may be slightly delayed in case of late weeding.
Madagascar: P. corymbosa is an annual weed of mid-cycle.
Wiktrop
| Attributions | Wiktrop |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
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Reproduction
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Polycarpaea corymbosa is an annual species. It multiplies only by seed.
The seeds released by dehiscence of the capsules, are dispersed by wind (dry season) and water in the rainy season.
Wiktrop
| Attributions | Wiktrop |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
Morphology
Growth form
Erected
Leaf arrangement
Opposite
Verticillate
Leaf type
Simple
Type of prefoliation
Linear leaves
Equality of opposite leaves
Opposite leaves equal
Latex
Without latex
Stem section
Round
Root type
Taproot
Hollow or solid stem
Solid stem
Stipule type
Lanceolate stipule
Leaf attachment type
sessile
Fruit type
Capsule
Lamina base
attenuate
Lamina margin
hairy
entire
Lamina apex
attenuate
Upperface pilosity
Glabrous
Less hairy
Upperface hair type
Pubescent
Lowerface pilosity
Less hairy
Glabrous
Simple leaf type
Lamina linear
Lamina section
flat
Lamina Veination
one
Flower color
Purple
White
Inflorescence type
Cyme
Stem pilosity
Dense hairy
Stem hair type
Wooly
Pubescent
Life form
Broadleaf plant
Ecology
Northern Cameroon: Polycarpaea corymbosa is a weed of Sudano-Sahelian regions where the annual rainfall is between 600 and 1100 mm. It grows mainly on degraded soils, acidic, whose surface horizon is sandy or stony.
Madagascar: It grows on ferruginous sandy soils, with relatively low fertility, in degraded pastures, fallow and in rainfed regions in the Southwest and West (semi-arid and sub-humid of Madagascar). It is found as a weed in cassava cultivation systems, cotton and corn cowpea associated more or less extensive
Mauritius: Absent.
Wiktrop
| Attributions | Wiktrop |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
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No Data
📚 Habitat and Distribution
General Habitat
Habitat
Terrestrial
Description
Geographical distibution
Madagascar
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Worldwide distribution
Polycarpaea corymbosa is a widespread species in all warm regions of Africa, Asia and America (Central and South America, Southern USA, tropical and southern Africa, Madagascar, India, China, Asia South East, Australia and the Pacific Islands).Wiktrop
| Attributions | Wiktrop |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
No Data
📚 Occurrence
No Data
📚 Demography and Conservation
Risk Statement
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Local harmfulness
Northern Cameroon: Polycarpaea corymbosa is infrequent, because in these regions, it is only present in about 10% of the parcels and it is never abundant. This is a minor weed. This is typically a weed of traditional non-intensified cultivations (manual farming operations, no fertilizer, and herbicide ever), such as sorghum and groundnut.
Madagascar: P. corymbosa is a weed, infrequent and sparse in crops in Madagascar.
Mauritius: Absent.
Wiktrop
| Attributions | Wiktrop |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
No Data
📚 Uses and Management
Uses
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Medicinal: Polycarpaea corymbosa is a recognized medicinal plant: anti-diabetic, anti-inflammatory, anticancer and antimicrobial significant alcoholic extracts of whole plant.
Wiktrop
| Attributions | Wiktrop |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
Management
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Madagascar: The fight against Polycarpaea corymbosa by manual weeding does not present any particular difficulty, if not, its delayed emergence may allow it to escape the interventions.
Mauritius: Absent.
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
- 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.
- Berhaut J., 1967. Flore du Sénégal. 2ème éd. Clairafrique éd., Dakar, Sénégal, 485p.
- Berhaut J., 1974. Flore illustrée du Sénégal. Tome 2. Clairafrique éd., Dakar, Sénégal, 695 p.
- Grard, P., T. Le Bourgeois and H. Merlier (2010). Adventrop V.1.5 Les adventices d'Afrique soudano-sahélienne. Montpellier, France, Cirad.
- Hutchinson J., Dalziel J. M., Keay R. W. J. & Hepper F. N., 1954. Flora of West Tropical Africa. Vol. I part. 1. 2ème éd. The Whitefriars Press ed., London & Tonbridge, 295p.
- H. PERRIER de la BÂTHIE 1950 – Flore de Madagascar et des Comores 73è Famille M N H N Paris p. 14-17.
- KARUPPASAMY BALAMURUGAN, ANTONY NISHANTHINI and VEERABAHU RAMASAMY MOHAN 2013 – Anti diabetic and Anti hyperlipidaemic Activity of Ethanol extract of Polycarpaea corymbosa (L.) Lam Whole Plant in Alloxan Induced Diabetic Rats. International Journal of Pharmaceutical and Chemical Sciences Vol 2 (2). Apr.-Jun. 2013 p. 757-763.
Information Listing > References
- 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.
- Berhaut J., 1967. Flore du Sénégal. 2ème éd. Clairafrique éd., Dakar, Sénégal, 485p.
- Berhaut J., 1974. Flore illustrée du Sénégal. Tome 2. Clairafrique éd., Dakar, Sénégal, 695 p.
- Grard, P., T. Le Bourgeois and H. Merlier (2010). Adventrop V.1.5 Les adventices d'Afrique soudano-sahélienne. Montpellier, France, Cirad.
- Hutchinson J., Dalziel J. M., Keay R. W. J. & Hepper F. N., 1954. Flora of West Tropical Africa. Vol. I part. 1. 2ème éd. The Whitefriars Press ed., London & Tonbridge, 295p.
- H. PERRIER de la BÂTHIE 1950 – Flore de Madagascar et des Comores 73è Famille M N H N Paris p. 14-17.
- KARUPPASAMY BALAMURUGAN, ANTONY NISHANTHINI and VEERABAHU RAMASAMY MOHAN 2013 – Anti diabetic and Anti hyperlipidaemic Activity of Ethanol extract of Polycarpaea corymbosa (L.) Lam Whole Plant in Alloxan Induced Diabetic Rats. International Journal of Pharmaceutical and Chemical Sciences Vol 2 (2). Apr.-Jun. 2013 p. 757-763.
Images
Herbarium pictures ReCOLNAT: https://explore.recolnat.org/search/botanique/simplequery=Polycarpaea%2520corymbosa
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 | Caryophyllales |
| Family | Caryophyllaceae |
| Genus | Polycarpaea |
| Species | Polycarpaea corymbosa (L.) Lam. |
📊 Temporal Distribution
📷 Related Observations
