Some biofuel crops used in Hungary
A preliminary list of alien biofuel species used in Europe had been assembled in 2001 by Fogarassy and included the following species: Arundo donax (Poaceae), Carthamus tinctorius (Asteraceae), Helianthus tuberosus (Asteraceae, EPPO List of IAP), Hibiscus cannabinus (Malvaceae), Miscanthus sinensis (Poaceae, EPPO Alert List) and Silphium perfoliatum (Asteraceae).
In Hungary, the following alien species are known to be planted as biofuels: Arundo donax, Miscanthus sinensis, Sida hermaphrodita (Malvaceae) and Silphium perfoliatum. Silphium perfoliatum originates from North America where it is considered invasive in some US States and should be usefully given some attention as a potential invasive alien plant.
Sources
Fogarassy C (2001) Energy crops on arable lands. SZIE GTK, European Studies Center, 7-139. (in Hungarian).
Solymosi P (2012) Changes in the range of energy plant species grown in Hungary. Növényvédelem 48, 37-38 (in Hungarian).