Asteraceae

Hairless blue-sow-thistle

Lactuca plumieri (L.) Gren. & Godr.

Family: Asteraceae
Genus: Lactuca

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Hairless blue-sow-thistle (Lactuca plumieri) — FlowerPhoto: Flavien Saboureau, CC BY 4.0, from iNaturalist

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Common names

By language (3)

English: Hairless blue-sow-thistle
French: Cicerbite de Plumier, Laitue de Plumier
German: Französischer Milchlattich

Synonyms

Agathyrsus plumieri (L.) D.Don
Agathyrsus plumieri (L.) Sweet
Cicerbita orbelica (Velen.) Hayek
Cicerbita plumieri (L.) Kirschl.
Lactucopsis plumieri (L.) Sch.Bip.
Mulgedium orbelicum Velen.
Mulgedium plumieri (L.) DC.
Sonchus acanthifolius Clairv.
Sonchus acanthoides Steud.
Sonchus cichoraceus Moench
Sonchus plumieri L.

Flowers

In flower: July to August (from 249 flowering iNaturalist observations worldwide)

Photos

FlowerPhoto: Flavien Saboureau, CC BY 4.0, from iNaturalist
FlowerPhoto: Paulo Caseirito, CC0, from iNaturalist
FlowerPhoto: Antonin Gaillard, CC0, from iNaturalist
FlowerPhoto: ANGEL MARCOS LUENGO BELLO, CC BY 4.0, from iNaturalist
Photo: Jmp48, CC BY-SA 3.0, from Wikimedia Commons
Photo: Jean Jacques Godon, CC BY 4.0, from iNaturalist
Photo: Isidre blanc, CC BY-SA 4.0, from Wikimedia Commons
Photo: peganum from Small Dole, England, CC BY-SA 2.0, from Wikimedia Commons
Photo: Krzysztof Golik, CC BY-SA 4.0, from Wikimedia Commons
Photo: Riccardo Guarino, CC BY 4.0, from iNaturalist
Photo: Krzysztof Golik, CC BY-SA 4.0, from Wikimedia Commons
Photo: Krzysztof Golik, CC BY-SA 4.0, from Wikimedia Commons

More in Lactuca

Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0). About our plant data.