A

× angustifolius

B

× bennetii

× billupsii

C

× cadburyae

× cognatus

× cooperi

F

× fluitans

× franconicus

friesii × gramineus

G

× gessnacensis

× griffithii

× grovesii

L

× lancolatifolius

× lancolatus

× lintonii

M

× mysticus

N

× nericius

× nerviger

× nitens

O

× olivaceus

P

× prussicus

× pseudofriesii

× pusilliformis

R

× rivularis

S

× salicifolius

× schreberi

× semifructus

× sparganifolius

× spathulatus

× sudermanicus

U

× undulatus

V

× variifolius