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Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Asterids
Cladus: Campanulids
Ordo: Asterales

Familia: Asteraceae
Subfamilia: Cichorioideae
Tribus: Cichorieae
Subtribus: Hyoseridinae
Genus: Sonchus
Species: Sonchus tenerrimus
Subspecies: S. t. subsp. amicus – S. t. subsp. dianae – S. t. subsp. tenerrimus

Sonchus tenerrimus L. non Schur

Sonchus tenerrimus Schur = Sonchus oleraceus L.


Linnaeus, C. 1753. Species Plantarum. Tomus II: 794. Reference page.


Hassler, M. 2019. Sonchus tenerrimus. World Plants: Synonymic Checklists of the Vascular Plants of the World In: Roskovh, Y., Abucay, L., Orrell, T., Nicolson, D., Bailly, N., Kirk, P., Bourgoin, T., DeWalt, R.E., Decock, W., De Wever, A., Nieukerken, E. van, Zarucchi, J. & Penev, L., eds. 2019. Species 2000 & ITIS Catalogue of Life. Published on the internet. Accessed: 2019 Mar. 25. Reference page.
International Plant Names Index. 2019. Sonchus tenerrimus. Published online. Accessed: Mar. 25 2019.
The Plant List 2013. Sonchus tenerrimus in The Plant List Version 1.1. Published on the internet. Accessed: 2019 Mar. 25. 2019. Sonchus tenerrimus. Missouri Botanical Garden. Published on the internet. Accessed: 2019 Mar. 25.
USDA, ARS, Germplasm Resources Information Network. Sonchus tenerrimus in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 08-Apr-12.

Vernacular names
English: Slender Sow-thistle
español: Cerraja menuda
français: Laiteron délicat

Sonchus tenerrimus is a species of flowering plant in the aster family known by the common name slender sowthistle.[2] It is native to the Mediterranean region of southern Europe, northern Africa, and the Middle East.[3] It has been found as well in several other locations around the world, historically in association with ship ballast in coastal regions. It has become naturalized in a few places, such as California in the United States and Baja California in Mexico.[4][5][6]

Sonchus tenerrimus is an annual or perennial herb producing a slender, branching stem up to about 80 centimeters (32 inches) tall. The leaves are deeply divided into many variously shaped lobes which may have toothed edges or smaller lobes. The inflorescence bears flower heads lined with glandular, hairy to woolly phyllaries. They are filled with numerous yellow ray florets but no disc florets. The fruit is an achene up to a centimeter long including its pappus.[4]


The Plant List, Sonchus tenerrimus L.
USDA, NRCS (n.d.). "Sonchus tenerrimus". The PLANTS Database ( Greensboro, North Carolina: National Plant Data Team. Retrieved 19 November 2015.
Altervista Flora Italiana, Sonchus tenerrimus L. includes photos and European distribution map
Flora of North America, Sonchus tenerrimus Linnaeus, 1753. Slender sow-thistle
Shreve, F. & I. L. Wiggins. 1964. Vegetation and Flora of the Sonoran Desert. Stanford University Press, Stanford.
Calflora taxon report, Sonchus tenerrimus L., slender sow thistle, slender sowthistle

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