Phragmites

Upper glume 5-9 mm long; lowest node of inflorescence with few branches; panicle diffuse and partially drooping
P. australis (NSW VIC TAS NT SA WA QLD)
P. communis
Upper glume 4-6 mm long; lowest node of inflorescence with many branches; panicle erect and compact
P. karka (NT SA WA QLD)
P. vallatoria auct.

Key to Phragmites derived from Clayton 1967; Veldkamp 1992; Ward 2010

Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith