140 POISONOUS PLANTS 



they impart a violet tint, a peculiar odour, and 

 bitter taste. 



With regard to ill effects, it has been observed 

 that persons who have eaten bread contaminated 

 with the seeds of the Cow-wheat have suffered 

 from vertigo, but not invariably ; so at present 

 it remains only as a suspected plant. 



Broomrape Family {Orobanchacece). 



Broomrape {Orobanche minor), — This species 

 is parasitic on clover and several other plants. 



It only calls for attention in consequence of 

 its having been found to produce colic in animals 

 fed on clover in which this leafless parasite grows 

 in abundance. 



Further researches are required to ascertain 

 what injurious properties it may possess. 



