Get readings about Dock aeroallergens.

Weed pollen is dominant in the Fall.
Dock, Sorrel flower in the Spring and Summer.

• Sheep, Red, Common, or Field Sorrel (Rumex acetosella)
• Wild Sorrel (Rumex hastatulus)
• Swamp Dock (Rumex verticillatus)
• Pale Dock (Rumex altissimus)
• Patience Dock (Rumex patientia)
• Water Dock (Rumex orbiculatus)
• Sour or Yellow Dock (Rumex crispus)
• Fiddle Dock (Rumex pulcher)
• Bitter Dock (Rumex obtusifolius)
• Golden Dock (Rumex maritimus)

• Pale dock is one of the most common of the dock species in Missouri.
• Sorrel and dock are wind-pollinated and shed copious amounts of pollen.

• Sorrel dock (Rumex acetosella) is probably the most important hay fever plant in the the Rumex genus.
• Sheep sorrel is considered a cause of hay fever and blooms in May and June.