this pack includes -
 
hornwort ( ceratophylum demersum )
elodea crispa ( elodea crispa )
water starwort ( Callitriche stagnalis )
eurasian water millfoil ( Myriophyllum spicatum )
clasping leaved pond weed ( pontamogeton perfoliatus )
water crows foot ( Ranunculus aquatilis )
 
this mix of native plants ( exept elodea which is non native but widely naturalised ) are excellent oxygenators and a great addition too any pond.