(modifié de Bernard, Flore des Causses 2008) :
Plante annuelle à odeur forte
Écologie : [Introduit] Bords des chemins, terrains vagues, cours des fermes dans toute la France.
Répartition hors de France : Presque toute l'Europe.
(modified from Butcher, British Flora 1961):
NOTE: the French text is more complete and up-to-date
An erect, glabrous, little-branched, pleasantly scented annual 5-30 cm high.
Ecology UK: (distribution according to flora) abundantly naturalized in waste places and on tracks and paths throughout the British Isle
France:
Distribution outside France: ?
Fleurs : Capitules dépourvues de fleurs ligulées; fleurs tubuleuses, verdâtres, à 4 lobes ; réceptacle conique, creux
Floraison France : Mai-septembre.
Flowers: Flower-heads 6-8 mm diam., many, in a rather lax corymb; bracts ovate, glabrous, with a broad, scarious margin; receptacle conical and hollow; ray absent; disc florets 2-4 mm long, tubular, greenish-yellow.
Flowering UK: Early June-mid Aug.