Tulipa gesneriana contains an allergen, tuliposide A, which causes
dermatitis in sensitive individuals. Contact dermatitis is a
problem in some workers handling tulip bulbs. The condition, known
as tulip fingers, is caused by exposure totuliposide A. Poisoning
in humans and dogs may also occur when tulip bulbs are ingested due
to the presence of the glycoprotein tulipin, tuliposid A, tuliposid
B, and lectins.