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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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Daucus carota L. subsp. maximus (Desf.) Ball.

Accepted
Daucus carota L. subsp. maximus (Desf.) Ball.
Plante adulte
Grande ombelle de fleurs blanches de 10 à 30 cm de diamètre.
Fleurs blanches, celles du centre purpurines.
/Daucus carota maximus/442.jpg
Plantule
🗒 Synonyms
synonymCaucalis hispanica Crantz
synonymDaucus carnosus Moench
synonymDaucus carota subsp. parviflorus (Desf.) Fiori
synonymDaucus carota var. herculeus (Pau) Maire
synonymDaucus carota var. mauritanicus (L.) Spreng.
synonymDaucus carota var. serotinus (Pomel) Batt.
synonymDaucus communis Rouy & Camus
synonymDaucus herculeus Pau
synonymDaucus mauritanicus L.
synonymDaucus maximus Desf.
synonymDaucus parviflorus Desf.
synonymDaucus parviflorus subsp. breviumbellatus (Barratte) Le Houér.
synonymDaucus serotinus Pomel
🗒 Common Names
Arabic
  • Maghzel leytima, Zaaket el gott, Sfenariet ed douab, Tazdalt, Sekniou
English
  • Giant carrot
French
  • Grande carotte, Carotte géante
Portuguese
  • Cenoura brava, Cenoura brava grande, Chapéu de sol, Erva salsa
Spanish; Castilian
  • Carrota, Zanahoria silvestre
📚 Overview
Overview
Brief

Code

DAUCM

Growth form

Broadleaf

Biological cycle

Biennial

Habitat

Terrestrial

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    Diagnostic Keys
    Description

    Seedling

    Cotyledons are firm, lanceolate-filiform, 20-30 x 1-2 mm, gradually attenuating into a petiole, hairless. Primordial leaves rosette-shaped, bristly, divided into three lobes, each deeply divided into narrow, lanceolate segments. The following leaves are pinnate and several times divided. The hypocotyl axis is short, 5-10 mm, slender, reddish-purple. Seedling dark green.

    Adult plant

    Daucus carota subsp. maximus is a biennial, upright plant with a carrot-like odour when crushed. Stem single or flanked by basal oblique shoots, furrowed, strongly bristled with stiff hairs, reaching 2 m high (it is the largest ʻmauvaise herbeʼ in Algeria). Leaves soft, triangular in outline, bipinnate, with wedge-shaped segments, sheaths enlarged at base, whitish with membranous margin, petioles, petiolules and segments strongly bristly. Umbels large, 10-30 cm in diameter, with numerous rays converging and straightening towards each other at maturity (characteristically bird's nest shaped), borne on a dilated peduncle. Bracts entire and bracteoles bi- to trifid in mixture, shorter than the rays. Flowers white, those in the centre purplish. Fruit ovoid, 2 mm long, laden with stiff prickles terminating in several hooks in a crown.

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      No Data
      📚 Natural History
      Life Cycle

      Life cycle

      Annual
      Annual

      Algeria: Daucus carota subsp. maximus germinates in autumn-winter; flowering takes place from May to August.
      Morocco: Daucus carota subsp. maximus flowers from April to June.

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        Cyclicity

        Daucus carota subsp. maximus is an annual to biennial species.

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          Reproduction

          Daucus carota subsp. maximus reproduces by seed.

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            Dispersal

            Daucus carota subsp. maximus is an ectozoochorus species.

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              Size
              Morphology

              Latex

              Without latex
              Without latex

              Stem section

              Ridged or grooved
              Ridged or grooved

              Root type

              Taproot
              Taproot

              Stipule type

              No stipule
              No stipule

              Achene type

              Achene flat
              Achene flat

              Lamina base

              attenuate
              attenuate

              Lamina apex

              acuminate
              acuminate

              Upperface pilosity

              Glabrous
              Glabrous
              Less hairy
              Less hairy

              Lowerface pilosity

              Less hairy
              Less hairy
              Glabrous
              Glabrous

              Simple leaf type

              Lamina divided
              Lamina divided

              Inflorescence type

              Axillary solitary flower
              Axillary solitary flower
              Umbel
              Umbel

              Stem pilosity

              Glabrous
              Glabrous
              Less hairy
              Less hairy

              Life form

              Broadleaf plant
              Broadleaf plant
              Physiology
              Ecology

              Algeria: Daucus carota subsp. maximus is an uncommon species in the country's perennial and annual crops (barley, winter wheat, etc.). Preference for deep heavy soils, more or less tirsified of the clayey-marly hills of the Tell, as well as clayey-silt soils.
              France - Camargue: Daucus carota is very common along paths and in fallow land. It can be found right up to the edge of the dunes where it tolerates salt fairly well.
              Morocco: Daucus carota subsp. maximus is a common species of pastures, crop margins, wasteland and roadsides.

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                Miscellaneous Details

                Toxicity

                Daucus carota subsp. maximus is a plant that can cause meadow dermatitis due to its high content of the photosensitising pigment furanocoumarin.

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                  📚 Habitat and Distribution
                  General Habitat

                  Habitat

                  Terrestrial
                  Terrestrial
                  Description

                  Origin

                  Daucus carota subsp. maximus is native to the Mediterranean-Iranian-Turanic region.

                  Algeria : Common species in fields and pastures throughout the Tell.

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                    No Data
                    📚 Occurrence
                    No Data
                    📚 Demography and Conservation
                    Risk Statement

                    Local harmfulness

                    Algeria: Daucus carota susbsp. maximus is a minor "weed". Uncommon and not very abundant, it does not generally constitute a nuisance for the crop. However, it can sometimes be harmful in a localised way if present in patches of high density.

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                      📚 Uses and Management
                      Uses

                      Food: The flowers of Daucus carota subsp. maximus can be used in carrot salad cooked with cumin, green salads, salad dressings, and infusions. The seeds are very aromatic and can be used to flavour desserts, and make an excellent condiment. The young, tender roots (white, sometimes purple) can be eaten raw or cooked.

                      Ecotoxicology: As Daucus carota subsp. maximus is a common roadside plant, American ecologists used it to determine the lead content of individuals located 15 m or 500 m from a major highway in the USA. Lead concentrations in leaves and stems were 367% higher in individuals near the highway compared to those further away.

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                        Management

                        Local control

                        Algeria: Hoeing seedlings or uprooting adult individuals of Daucus carota subsp. maximus is then all that is usually needed.

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                          No Data
                          📚 Information Listing
                          References
                          1. The World Flora Online http://www.worldfloraonline.org/taxon/wfo-0000638464
                          2. Plants of the World Online https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:77249989-1
                          3. Kazi Tani C., Grard P. & Le Bourgeois T., 2021. "AdvenAlg 1.0 Identification et connaissance des principales adventices d'Algérie méditerranéenne." Al Yasmina, Revue de Botanique 2(3): 1-187.
                          4. CABI https://www.cabidigitallibrary.org/doi/10.1079/cabicompendium.18018
                          5. Flora Maroccana (Dobignard A.) https://www.floramaroccana.fr/daucus-carota-maximus.html
                          6. Marnotte, P., et al. (2006). Plantes des rizières de Camargue. Montpellier, France, Cirad, Centre français du riz, Parc naturel régional de Camargue. http://plantes-rizieres-camargue.cirad.fr/dicotyledones/apiaceae/daucus_carota
                          Information Listing > References
                          1. The World Flora Online http://www.worldfloraonline.org/taxon/wfo-0000638464
                          2. Plants of the World Online https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:77249989-1
                          3. Kazi Tani C., Grard P. & Le Bourgeois T., 2021. "AdvenAlg 1.0 Identification et connaissance des principales adventices d'Algérie méditerranéenne." Al Yasmina, Revue de Botanique 2(3): 1-187.
                          4. CABI https://www.cabidigitallibrary.org/doi/10.1079/cabicompendium.18018
                          5. Flora Maroccana (Dobignard A.) https://www.floramaroccana.fr/daucus-carota-maximus.html
                          6. Marnotte, P., et al. (2006). Plantes des rizières de Camargue. Montpellier, France, Cirad, Centre français du riz, Parc naturel régional de Camargue. http://plantes-rizieres-camargue.cirad.fr/dicotyledones/apiaceae/daucus_carota
                          Images
                          Thomas Le Bourgeois
                          Attributions
                          Contributors
                          StatusUNDER_CREATION
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                          References
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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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