I took these photographs 3 years ago and I still haven't identified the plant. It is not Malva sylvestris/officinalis because the petals are not lobed. When I took the photographs I had very little experience of the requirements for plant ID. Hence the lack of photographs of the capsules.
Thanks lila, I will check it out. Couldn't do much with your link. The Hungarian language is the barrier. duffy
Here it is in Google-translated English. When you put a url into your browser search, it will probably come up as a search result with a "Translate this page" link to translate it into the language you're using. Actually, I'm assuming that works in whatever language you're using.