Code
CRUPY
Growth form
Broadleaf
Biological cycle
Annual
Habitat
Terrestrial
Carduus pycnocephalus L.
synonym | Carduus arabicus subsp. carduus |
synonym | Carduus pycnocephalus var. pycnocephalus |
synonym | Carduus tenuiflorus var. pycnocephalus (L.) DC. |
Arabic |
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English |
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French |
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Italian |
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Portuguese |
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Spanish; Castilian |
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Seedling
Cotyledons large, 10-26 x 7-13 mm, elliptic with a slightly indented apex, the main vein visible, petiolate, glabrous. Primordial leaves rosette-shaped, simple, elliptic, attenuated at both ends, with toothed margins bristling with spines, covered with white hairs, short-petiolate. The hypocotyl axis is developed and greenish. The seedling is light green.
Adult plant
Carduus pycnocephalus is an upright, spiny annual plant. The stem is branched, with narrow, clearly interrupted spiny wings, reaching 100 cm in height. Basal leaves in a rosette, sinuate or pennatifid, white-tomentose lower face, strongly thorny, whitish discolouration on certain secondary veins; the upper leaves are narrow and very thorny, decurrent along the stem. Elongated capitula less than 1.3 cm in diameter, small, solitary or clustered by 1-3 on non-winged peduncles. Involucre of bracts cylindrical, lanceolate bracts ending in a broad point, with a scabrous dorsal vein. Florets all tubular, purplish-purple. Achenes ovoid, 4-5 mm long, compressed, with domed disc nipple, greyish, sticky, topped with a pappus of scabrous bristles.
Attributions | Wiktrop |
Contributors | |
Status | UNDER_CREATION |
Licenses | CC_BY |
References |
Life cycle
Algeria: Carduus pycnocephalus germinates in autumn and winter and flowers from March to June.
Morocco: Carduus pycnocephalus flowers from May to June.
Attributions | Wiktrop |
Contributors | |
Status | UNDER_CREATION |
Licenses | CC_BY |
References |
Carduus pycnocephalus reproduces by seed.
Attributions | Wiktrop |
Contributors | |
Status | UNDER_CREATION |
Licenses | CC_BY |
References |
Growth form
Leaf arrangement
Leaf type
Latex
Stem section
Root type
Hollow or solid stem
Stipule type
Leaf attachment type
Fruit type
Achene type
Cotyledon type
Lamina base
Lamina margin
Lamina apex
Upperface pilosity
Upperface hair type
Lowerface pilosity
Lowerface hair type
Simple leaf type
Lamina section
Lamina Veination
Flower color
Inflorescence type
Stem pilosity
Stem hair type
Life form
Carduus pycnocephalus is a C3 species.
Attributions | Wiktrop |
Contributors | |
Status | UNDER_CREATION |
Licenses | CC_BY |
References |
Algeria: Carduus pycnocephalus is a fairly common species in the various annual and perennial crops in the north of the country, as confirmed by the profusion of vernacular names. It grows on silty to clay-loam soils whose high water retention capacity is compensated for by a richness in pebbles which facilitates drainage, and which are fairly rich in nitrogen.
Morocco: Carduus pycnocephalus is a very common species. It is nitrophilous and ruderal, thriving in pastures, wasteland and crops throughout non-Saharan Morocco, up to 2000 m altitude.
Attributions | Wiktrop |
Contributors | |
Status | UNDER_CREATION |
Licenses | CC_BY |
References |
Habitat
Origin
Carduus pycnocephalus is native to the Mediterranean bassin and Eurasia.
Worldwide distribution
Introduced into Africa (Ethiopia), Srilanka, Australia, the USA and South America (Brazil, Uruguay).
Algeria: Common throughout the Tell area.
Attributions | Wiktrop |
Contributors | |
Status | UNDER_CREATION |
Licenses | CC_BY |
References |
Local harmfulness
Algeria: Carduus pycnocephalus is a minor "weed". Infrequent and not very abundant, it is not generally a nuisance for crops.
Attributions | Wiktrop |
Contributors | |
Status | UNDER_CREATION |
Licenses | CC_BY |
References |
Attributions | Wiktrop |
Contributors | |
Status | UNDER_CREATION |
Licenses | CC_BY |
References |
- Jauzein P., 1995. Flore des champs cultivés. Paris, France, INRA.
- CABI https://www.cabidigitallibrary.org/doi/full/10.1079/cabicompendium.11260
- The World Flora Online https://www.worldfloraonline.org/taxon/wfo-0000024120
- 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.
- Plants of the World Online https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:188996-1
- Flora Maroccana (Dobignard A.) https://www.floramaroccana.fr/c.-pycnocephalus.html
- Jauzein P., 1995. Flore des champs cultivés. Paris, France, INRA.
- CABI https://www.cabidigitallibrary.org/doi/full/10.1079/cabicompendium.11260
- The World Flora Online https://www.worldfloraonline.org/taxon/wfo-0000024120
- 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.
- Plants of the World Online https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:188996-1
- Flora Maroccana (Dobignard A.) https://www.floramaroccana.fr/c.-pycnocephalus.html
Herbarium pictures ReCOLNAT: https://explore.recolnat.org/search/botanique/simplequery=Carduus%2520pycnocephalus
Attributions | Wiktrop |
Contributors | |
Status | UNDER_CREATION |
Licenses | CC_BY |
References |
Root | Root |
Kingdom | Plantae |
Phylum | Tracheophyta |
Class | Magnoliopsida |
Order | Asterales |
Family | Asteraceae |
Genus | Carduus |
Species | Carduus pycnocephalus L. |