Es poras en Crb
Rafael

Adio Rafael,

Surely not mature but perhaps you're right : probably S. nigrohirtula complex. Hairs are typical for one species of it.
It's a complex because two or three distinct species were synonymized in the past.
I haven't finished to separate and to recover good names for each. (hydrogeton, immersa, var. juncea...etc.). It's not necessary to create new names but it's necessary to be sure what species corresponding with what name.

I see what species it is in the complex but I haven't the "good name" today. Studies of typus aren't sufficient, because nigrohirtula have be used for a lot of things with black hairs in a lot of herbarium, and because dead study doesn't explore some things, so work is long.

So, at this moment, we can just say nigrohirtula complex. Sorry !

Beñat

Gracias Beñat.
La dejare como forma nigrohirtula
rafael