Photosensitization : causes?
riordan at werple.net.au
Mon Jan 20 01:06:11 EST 1997
rwhitehead at cix.compulink.co.uk ("Roger Whitehead") wrote:
>> This phenomenon is also widely known in N Europe. (Scandinavia). The
>> culprit there is Heracleum pubescens & H. sphondylium. (Apiaceae).
>Several of the umbelliferae offend in this respect. ........
> So, too, do various Citrus species, Scorpion Vetch
>(Coronilla spp.), Fig (Ficus carica) and, of course, Rue (Ruta
And, of course, Rhus. The ornamental varieties are bad - I got a burn
on my arm once, as bad as if I had touched it against my motorbike
exhaust, when I brushed against one while cutting grass with a motor
scythe, but the North American Poison Ivy (also a Rhus) is diabolical.
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