in Brizziolari Creek
Poly Land Revisited: A Field Guide, Danielle De Rome
notes that Poly Canyon "riparian forests are stratified,
not unlike a tropical jungle. Their canopies occur in layers
formed by different trees, shrubs, vines and lianas, and herbs."
following links are excerpted from Poly
Land Revisited. This is, of course, not a complete
listing of all riparian plants.