Local knowledge is priceless

I have discovered that there is a plant on the farm which I am allergic to.  After researching and walking - lots of walking (LOL), I have narrowed it down to this one.

From a distance it looks like what I call a bunnytail - a soft, fluffy dried plant, freely available in this country, and which can be dyed into various colours.



But, on closer inspection - both visual and physical - that is