Coefficient of Conservatism:
Coefficient of Wetness:
Parasitic on a great diversity of hosts, in Michigan including species of Cephalanthus, Sambucus, Amphicarpaea, Spiraea, Salix, Equisetum, Boehmeria, Populus, Lycopus, Lythrum, Stachys, and a number of Asteraceae.
The fruit and styles somewhat resemble those of C. coryli, but the perianth is not papillate. This is our commonest species with a four-lobed corolla, though still quite local.