English: Petty spurge;
Radium plant;
Cancer weed; Milkweed.
Synonym: Tithymalus peplus.
Dutch: tuinwolfsmelk.
DD:
Euphorbia peplis.
Region: Europe, northern Africa and western Asia.
Habitat: cultivated arable land, gardens; disturbed land; widely naturalised, invasive, in Australia, New Zealand, North America, temperate and sub-tropical regions.
Content: ingenol mebutate, aditerpene ester.
BotanyHerb; annual; 5 to 30 cm tall.
Stem: smooth hairless.
Leaves: oval-acute; 1 to 3 cm long; smooth margin.
Inflorescence: three-rayed umbels.
Flowers: green; kidney-shaped; glands with long thin horns.