Image:PotamogetonPectinatus2.jpg|Leaves with the typical zigzag-formed stem Image:Tubers.jpg|Tubers
Stuckenia pectinata has long narrow linear leaves which are less than 2 mm wide; each is composed of two slender, parallel tubes. The main difference from other narrow-leaved pondweeds is that the
stipule joins the leaf base, when it is pulled the sheath and stipule comes away, similar to a grass sheath and
ligule. The fruits are 3 to 5 mm long. ==Ecology==