Grebenka, Yelisseev Locality, Site AL
The base is deeply lobed (cordate) but also may have a samll region close to the junction of th petiole that is peltate.
This photograph was made in the field. The specimen is in the collection of the Geological Institute, Russian Academy of Sciences, Moscow, Russia. For further details of the context of the collection see Spicer et al. (2002).