By Seatoncarew
United Kingdom 
My block paved drive is being attacked by a form of weed that I have been unable to identify. I have applied a strong mixture of various weed killers that have had no effect whatsoever and indeed the weed continues to thrive!
It is now spreading throughout the drive and I have now run out of ideas. Can anybody identify the weed and make any recommendations to help eliminate it
Many thanks.
Checked out Liverwort and this would appear to be the culprit. Onwards and upwards!
Help much appreciated
3 Aug, 2016
Answers
it looks like liverwort or moss to me.
they are 'rootless' so use a stiff brush and see if that removes it.
3 Aug, 2016
I wasn't sure it wasn't mind your own business...
3 Aug, 2016
I agree, probably liverwort, which won't be killed by weedkillers, but try for a better photo!
3 Aug, 2016
I actually quite like it and would be happy to keep it, but fully understand that others don't.
3 Aug, 2016
You can buy a tool in the GC that will scrape the liverwort/moss out from between the pavers. I'd them refill with sand to try and keep at bay.
3 Aug, 2016
If its liverwort, Pathclear makes a killer intended for hard surfaces, see here
https://www.amazon.co.uk/Pathclear-Litres-Ready-Algae-Killer/dp/B001VEJC5S
3 Aug, 2016
Thanks sorted the problem with vinegar!
9 Aug, 2016
Previous question
« I just got my golden barrel cactus and I'm not sure if it needs repotting and...
Can you take another close up photo please - its not possible to tell under magnification precisely what the weed is. And what weedkillers have you already tried?
3 Aug, 2016