Fagus sylvatica var. Salix x sepulcralis var. Common Snowball 10-15' Viburnum plicatum var. They are not part of the scientific name. Know them but do not use them on the quizzes.
Heights are normal garden heights in the Pacific Northwest.
These are plants that we may or may not see on our field trips, or which are difficult to recognize when not in blossom. We may even see additional cultivars or species in their place. In any case, please keep a record of those we do see and note the differences at the time and by reading up later.