Lemma surface hairy along midriband between the outermost lateral nerves *A. caudata (NSW VIC TAS)
Stipa brachychaeta auct., S.caudata
Lemma surface more or less hairy all over *A. brachychaeta (NSW)

Arriaga, M. O. & M. E. Barkworth (2006)

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