Haloragaceae . . . . . Water-milfoil family

Myriophyllum . . . . Water-milfoil

Myriophyllum alterniflorum . . . . Alternate Water-milfoil

Locally frequent esp. in N & W

Myriophyllum aquaticum . . . . Parrot-feather

Introduced by aquarists and spreading

Myriophyllum spicatum . . . . Spiked Water-milfoil

Locally common, esp. in lowland and S & E areas

M. verticillatum (Whorled water milfoil) is rather scattered in BI

Other possibly confused spp.:

Equisetum spp.

Equisetum spp.

Hippuris

Hippuris