1. Racemes slender, 2-3 mm wide A. elymoides (NSW NT WA QLD)
Racemes thicker, 5-13 mm wide 2

2. Lemma with three hooked hairs A. squarrosa (NSW NT SA WA QLD)
Lemma with one straight awn 3

3. Glumes shorter than spikelets; spikelets densely overlapping A. pectinata (NSW NT SA WA QLD)
Glumes as long as spikelet; spikelets loosely overlapping A. lappacea (NSW NT SA WA QLD)
A. triticoides

Key to Astrebla derived from Lazarides 1972; Nightingale et al 2005

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