Dear etaoin: my warmest congratulations on finding something I could not. Bill

Since you refreshed my memory,I remember having read many years ago about a problem when
cow grazed in badly depleted pastures with no fences, and and ate weeds they normally would
not have. I searched for "botany white snake root milk sickness" and got what appeared to be
a very promising site, only to get sad message "Server not found" Drat.

20.FDA/CFSAN Poisonous Plant Bibliography (SI-SZ Authors)
Introduction. Poisonous Plant Bibliography: SI ... hemolytic anemias seen, in snake ... Cardiac
effects of white ... of the cause of milk sickness ... BH (1987) Mystery root ...
http://vm.cfsan.fda.gov/~djw/SI-SZ.html