The green sepals at the base of the flowers come together to form the tubular calyx, which measures 4 to 8 mm in length and has little teeth.
Le calice, formÃ© par lâ€™ensemble des sÃ©pales verts situÃ©s Ã la base des fleurs, est un tube de 4 Ã 8 mm de long, pourvu de petites dents.