Bull. U.S.D.A. 772: 138 (1920) APNI
Tufted or rhizomatous perennial, culms geniculate, 10–60 cm high. Leaves glabrous, somewhat glaucous; blade flat, to 20 cm long and 10 mm wide, scabrous toward tips; ligule obtuse, membranous, 3–7 mm long. Inflorescence a dense narrowly ovate to cylindric panicle, 3–15 cm long and 8–60 mm wide. Spikelets 1-flowered; glumes 2, persistent, 1-nerved, subequal, narrowly elliptic, 2–3 mm long, scabrous-pubescent, minutely notched at apex, with a slender awn 2–3.5 mm long inserted in the notch; lemma 5-nerved, 1–2 mm long, minutely dentate at apex, glabrous, with a subterminal awn 2–3 mm long; palea 2-nerved, slightly shorter than lemma. Flowers Dec.–Mar.
*Brid, *EGL, *GipP, *MonT, *MuF, *OtP, *VVP, *WaP. Also naturalised SA, Qld, NSW, Tas. Recorded from wet, often slightly saline areas from Portland, Heywood, Warrnambool, Kerang and Melbourne areas.
Perennial Beard-grass is sometimes considered to be a sterile intergeneric hybrid between Polypogon monspeliensis and Agrostis stolonifera L. In Victoria it appears to be a fertile, true-breeding species and is treated as such here. It is an occasional component of saltmarshes and margins of brackish watercourses.
|Bioregion||Occurrence status||Establishment means|
|Victorian Volcanic Plain||present||naturalised|
|East Gippsland Lowlands||present||introduced|
|New South Wales|