1. Inflorescence spike 1-3 mm long; the rachis with distinctive protruberances on the margins and more sparingly on the back 
X.sp. Mitchell 4323 (WA)
Inflorescence spike 3-25 mm long; the rachis without any distinctive ornamentation


2. Inflorescence spike rachis glabrous and smooth to scabrous, with 3-6 spikelets
X. imberbis (NT WA QLD)
Inflorescence rachis woolly with crimped hairs,  with 2 spikelets

X. barbata (NT WA QLD)


Key to Xerochloa derived from Gardner 1952; Webster 1987; Simon, in prep.

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