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Photosensitization : causes?

Roger Whitehead rwhitehead at cix.compulink.co.uk
Sat Jan 18 22:28:23 EST 1997


> 
> 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. As well as the 
Hogweeds (Heracleum spp.), as mentioned, Angelica (Angelica sylvestris 
and A. archangelica), Celery (Apium graveolens), Dill (Anethum 
graveolens), Parsnip (Pastinaca sativum), Parsley (Petroselinum crispum 
and P. segetum) and Scots Lovage (Ligusticum scoticum) also produce 
photodermatitis. So, too, do various Citrus species, Scorpion Vetch 
(Coronilla spp.), Fig (Ficus carica) and, of course, Rue (Ruta 
graveolens).

Rue and the Hogweeds (sounds like a pop group!) are the worst.

Roger

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Roger Whitehead,
14 Amy Road, Oxted, Surrey RH8 0PX
Tel: +44 1883 713074; fax +44 1883 716793
.



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