Achillea ptarmica (sneezewort)
Galium aparine (cleavers, clivers, catchweed, sticky willy)
Melissa officinalis (lemon balm)
Plantago maritima (sea plantain, seaside plantain)
A plant of the genus Centipeda; either of the species Centipeda cunninghami or Centipeda minima, which induce sneezing and are known as a folk remedy for colds and allergic reactions.
A plant of the genus Helenium, especially Helenium autumnale.