Nick Maclaren wrote:

In article ,
trevor.appleton wrote:
Having worked as a ranger on the S Devon coast path, strimming, I can assure
you that conact with this stuff on sunny days especially results in severe
burns/blisters

To some people. And not to others. As usual with such things!

Although many people are vulnerable to it if the sap on skin and strong sunlight
are both present. It isn't something to ignore - you will not feel the damage
until much much later and by then it is too late.

See for example: http://www.dermnetnz.org/dna.plant.d...s/hogweed.html

Nasty photosensitiser and a plant to treat with serious respect.

Regards,
Martin Brown