In article , Chris Bacon
writes
I saw a remarkable patch at the roadside last year, with very large
stems - probably around 2' (600mm) long. Are there several sorts of
horse tail, or was this just ordinary stuff doing rather better than
the 1' stems I normally see? I'm keeping an eye on it to see what
happens this year, and it certainly seems to be doing well again!


There's several species of horsetail which grow in the UK. But it might
still just have been some more vigorous stems of the usual stuff.
--
Kay
"Do not insult the crocodile until you have crossed the river"