240109-10 The Potamogeton compressus aggregate P. compressus, P. zosteriformis
Geography: Circumboreal.
Notes: North American plants differ from Eurasian ones in several fruit features: shape, presence of a wing-like dorsal keel, and a nearly erect beak. They are variously treated as species or races. Haynes and Hellquist (2000c) and we accept them as species.
Higher Taxa
- Potamogeton [2401,genus]