more info can be found at this nice, though a trifle outdated site. (http://fly.to/blueshade/)
Contributed or significantly edited enteries:
... Kurilian bamboo[?] (Arundinaria kurileif sc). Birch, both European[?] and Kamchatkan[?] (Betula elba and B. Ermani), elder, poplar, elm, wild cherry[?] (Prunus padus), ...