Goldenrod (Solidago spp.), a gorgeous North American native, has long been unfairly blamed for allergies and hay fever due to its similarity to another, far more allergenic native plant.
But goldenrod pollen is one of the lesser causes of hayfever. Ragweed, more widespread, is the chief cause in the U. S. *There may be other rubber weeds. Mr. Edison has found traces of rubber in ...