Swaziland's Alien Plants Database

Polypogon viridis (Gouan) Breistr.

(Agrostis semiverticillata)

POACEAE

water bent grass, water bent, beardless rabbitsfoot grass

Unknown, Potential minor problem species

Origin: Eurasia

Growth Form: Graminoid

Plant Description: Annual, or perennial; stoloniferous, or caespitose. Culms 2–120 cm high; herbaceous; branched above, or unbranched above. Culm nodes glabrous. Culm internodes hollow. Leaves not basally aggregated; non-auriculate. Sheath margins free. Leaf blades linear to linear-lanceolate; narrow; 1–10 mm wide; setaceous (e.g., sometimes in P. tenellus), or not setaceous; flat (usually), or rolled (P. tenellus); without cross venation; persistent; rolled in bud; an unfringed membrane; truncate, or not truncate; 2–15 mm long. Inflorescence paniculate; bristly, contracted (usually, more ore or less), or open to contracted (e.g., P. viridis); more or less ovoid, or spicate, or more or less irregular; without capillary branchlets. Primary inflorescence branches borne distichously. Inflorescence espatheate; not comprising ‘partial inflorescences’ and foliar organs. Spikelet-bearing axes persistent. Spikelets not secund; pedicellate.

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More information:
NRCS Plants Database

Photo - plant