Scale bar = 1cm
Five-awned Spear-grass - native (Pentapogon quadrifidus)
Native. Annual or short-lived perennial. C3.
Family. Poaceae (Grass family).
- the flowers are in a contacted cluster
- the 2 glumes are longer than the lemma body, and shorter than the lemma body plus awns
- the single lemma is 5-awned, with a longer central awn
- the leaves are flat or rolled
- the ligule is membranous, truncate and to 2mm long.
The 5-awned lemmas make this grass easy to recognise. The central awn is longest (10-25mm). The lemmas are two-lobed, and each lobe divides into two unequal awns.
Penta: five; pogon: beard, referring to the five-awned lemmas; quadrifidus: cleft half-way into four segments.
Photos 1: The contracted flower cluster. 2: Three spikelets, each with 2 glumes and lemma. 3: Five-awned Spear-grass. Wattle Flat.