Comparison Chart for Species of Polypogon
Character
Polypogon interruptus
Polypogon monspeliensis
Polypogon viridis
glume tips
unlobed to barely lobed
bristly lobes 0.1–0.2 mm long
unlobed
glume awn length
1–3(5) mm
3–10 mm
awnless
lemma awn length
0.5–3.2 mm
0.5–5 mm