Mullein is a plant with many common names: torch weed, American vetiver and bunny ears are just a few. It is said that in times of old the plants were used by witches as candles; hence, its nickname of hagtaper.
It is originally of European origin but now has spread to temperate climates all around the world. In Europe even today it is the source of a commercial over the counter medicine used to treat ulcers.
It loves open fields and areas of ground that have been disturbed. It usually grows in colonies and you can see fields of the plants some of which grow to over 6 feet tall.
Even in the winter, the stalks still raise their heads to the sky even as they stand there with their leaves all brown and droopy.
In its natural habitat, it is a biennial plant meaning that it lives for only two years and then dies. However I have some stalks in my yard which have continued to come back for 4 or 5 years. In its first year, the plant produces a fuzzy center of woolly leaves. In following years, it produces a straight stalk bearing yellow flowers along the top several feet. There are fine hairs on the leaves and stem which help the plant retain moisture. The moisture drops from the upper, smaller leaves down to the larger leaves and eventually down to the roots of the plant.
Historically the leaves were made into a "tobacco" and were rolled and smoked as a cure for asthma and tuberculosis. It is also said to have relieved symptoms for those where mentally unbalanced. The Romans also used the leaves to preserve figs by wrapping them around the fruit. And the root of the plant soaked in water was supposed to be a cure for bed wetting. Just try that one on your 3 year old.
Even today, people still use the plant for such things as ear infections. And for diminished hearing due to wax build-up, you can steep the flowers in olive oil, let it sit in a sunny spot for a week and then put a drop or two of the warm oil in the ear to dissolve the hardened wax.
For congestion, put some crushed leaves into a put of rapidly boiling water, let it boil for a few minutes then inhale the steam. And as a sedative, drink a cup of tea made by steeping a handful of the flowers in 2 cups of boiling water. You could also gargle with that mixture to alleviate throat irritation.
Any of these recommendations must first be ok'ed by your medical doctor, of course, since your medical doctor always knows what's best for you. (Sorry, I had to say that, again.)