he he great response, thanks greeny, robby, piny...
Unfortunately no right answers. So, Let me send some hints:
First, due to the degree of difficulty, the pics came in another direction, so it has to be: 1. very easy 2. medium 3. well done (pretty difficult).
pic w 13
Not easy to take a photo, but you (except greenhorn) notice the plant several times each day
pic s 26
everyone (almost everyone in the affluent society) knows the plant, most of us has or have had a specimen, but just a few of us or no one noticed their flowers or fruits.
pic m 17
specimens represent the largest leaves in Malta and have a wrong label in Anton Gds. Greenhorn was close with the family name but only with the name, not due to systematic aspects
(few minutes ago I had a cigarette and send to you the view from the window of my office...

)