Anyone come across the plants for a future website? Seems to contain a lot of detailed information on plants e.g. for reedmace:
Typha latifolia Reedmace, Broadleaf cattail, Bullrush, Nailrod PFAF Plant Database
Typha latifolia is a PERENNIAL growing to 2.5 m (8ft) by 3 m (9ft) at a fast rate. See above for USDA hardiness. It is hardy to UK zone 3. It is in flower from June to August. The species is monoecious (individual flowers are either male or female, but both sexes can be found on the same plant)...
pfaf.org