I'd need some larger pics of the leaves. I'm leaning towards hyssop

Nope, after searching matching the characteristics I'm lean towards mentha spicata. Maybe I'm wrong. Thank you.

This post was edited by leonardusius on Thu, Jul 31, 14 at 7:54

Here are the leaf photo.

I don't know myself, but if that is a wild area, does it seem like that the non-native mentha spicata would be there? I know things do get around ...

Definitely a mint, Mentha sp., rather than Hyssop. I don't know what would be native in your region. Mentha spicata doesn't smell of peppermint and the flowers don't look quite right, although it is variable.

I have a yard full of spearmint, I know it's variable but I don't believe this is that.

I'm thinking it might be water mint, which would make sense for the habitat.

Non-native to the USA. Finding it on a few invasive lists.

The leaves of Mentha aquatica are more rounded as are the flower heads. Mints do hybridise so it ma not be a species.

I don't know what mints may be found in Romania, but that does look like Mentha citrata to me, which is supposedly somewhat related to Mentha aquatica. You can use a magnifying glass to see if the calyx has double, vertical rows of light-colored glands. Those glands would be indicative of M. citrata, which is sometimes called Bergamot Mint.

Oh, jekeesl, thanks for bringing us back to sanity - not sure how many of us checked the poster's page to see that he was in Romania.

Listing the location of the plant in the first post - always a good thing.

Yeah, I wouldn't have even attempted an ID, except many of the mints around the world have been widely shared by nurseries and enthusiasts.

I think I would go for Mentha spicata after all, now I've been reminded it's in Europe. Or possibly a M spicata /aquatica hybrid. The leaves look right for spicata but the flowers are rather blunt. Returning to the original tea question I wouldn't hesitate. It's not Pennyroyal which is the one to avoid. I've made tea from M aquatica and it tastes fine - if you like mint tea. Just as good as M spicata. But, personally, I prefer it in Mojito form.