Stuckenia pectinata Care Guide
Stuckenia pectinata (sago pondweed) is a cosmopolitan coldwater pondweed with fine thread-like leaves that tolerates brackish water and feeds waterfowl.
Overview
Stuckenia pectinata, commonly called sago pondweed, is a fully submerged aquatic plant in the family Potamogetonaceae. It was formerly classified as Potamogeton pectinatus. The plant has fine, thread-like ribbon leaves and grows from a rhizome bearing starch-rich tubers, suiting it to temperate biotope and pond setups.
Taxonomy
- Family: Potamogetonaceae
- Genus: Stuckenia
- Scientific name: Stuckenia pectinata
- Common synonyms: Sago pondweed; formerly Potamogeton pectinatus
Habitat
The species is cosmopolitan, occurring in fresh and brackish waters on every continent except Antarctica. Its narrow linear leaves are less than 2 mm wide, each made of two slender parallel tubes, and its fruits are 3-5 mm long. It tolerates eutrophication and can become a nuisance weed in canals and waterways.
Aquarium requirements
- Placement: background
- Temperature: 10-22 °C (50-72 °F)
- pH: 6.5-8.5
- GH: 6-22 °dGH
- Lighting: medium
- CO2: not required
- Maximum height: about 80 cm
Growth and care
Growth is moderate and the plant is rated intermediate, preferring cool water and harder, sometimes slightly brackish conditions. It is best suited to coldwater biotope aquaria and outdoor ponds rather than warm tropical tanks.
Propagation
It reproduces both vegetatively, via rhizomes, tubers and plant fragments, and sexually by wind-pollinated flowers producing floating seeds.
Ecology
The nutritious tubers are an important food for waterfowl such as canvasback ducks, which also help disperse the plant. The IUCN Red List assesses the species as Least Concern.