The Linnaean Plant Name Typification Project

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Linnaean Name: Carduus helenioides Linnaeus
Reference: Species Plantarum 2 : 825 (1753)
Provenance: "Habitat in Anglia, Sibiria."
Type: Lectotype : Herb. Linn. No. 966.36 (LINN)
Designated by: Airy Shaw in Repert. Spec. Nov. Regni Veg. 43 : 306 (1938)
Current Name: Cirsium × helenioides (L.) Hill
Current Family: Asteraceae
Comments: Although Cirsium × helenioides (L.) Hill and C. heterophyllum (L.) Hill had been treated as synonymous by many authors, study of the type of C. × helenioides (966.36 LINN) by Talavera & Valdés (in Lagascalia 5: 155-157. 1976) has shown it to be a hybrid between C. heterophyllum and C. rivulare (Jacq.) All. As C. × helenioides and C. heterophyllum are therefore not synonymous, C. × helenioides becomes the correct name for the original taxon.
Record last updated: 28/05/2014