North American Fruit Explorers mailing list at ibiblio

["Martha L. Davis" <martha_davis@earthlink.net>]

The viburnum flowers are truly beautiful. Some hydrangeas also have a similar 
arrangement.  I had them but never made jelly because I was deterred by the 
dirty sock smell. According to Michael Dirr,  V. opulus the european 
cranberry bush viburnum, has a few concave, disk-like glands on the petiole.  
V. trilobum  the american cranberry bush viburnum is supposed to have small 
dome shaped glands usually stalked on it's petiole.   I have always found 
them hard to tell apart and even looking at labeled species in an arboretum 
it was not all that clear.  In addition I suspect that both are now present 
in "wild" areas not to mention hybrids between the two.

Martha