Click on the image below to view an
expanded illustration for this species.
|
General:
Perennial, aquatic herb from fine, tufted roots; stems up to 100 cm long, branched at the base.
Leaves:
All submersed, 2-ranked, linear, the sides parallel, stiff, brownish-green, 3-7 cm long, 0.1-0.3 cm wide, usually with 3 veins, gradually tapered into sharp bristled tips, the stipules 1-3 cm long, coarsely fibrous, whitish, the older tending to disintegrate into shreds, the margins fused towards the bases, the glands at the nodes small and inconspicuous.
Flowers:
Inflorescence spikelike, the spikes 0.5-1.5 cm long, with 2 to 5 whorls of flowers, the stalks thin; winter buds cylindrical, the bases hard, strongly ribbed.
Fruits:
Achenes, egg-shaped, 1.8-2.2 mm long, 1.2-1.8 mm wide, widest at the middle, the beaks short, the keels absent.
Source: The Illustrated Flora of British Columbia
|
