Maltawildplants.com is now considered an online flora of the Maltese islands, portraying more than 900 species of plants found in Maltese habitats. It harbours a forum created in 2005 were memberes discuss topics about the Maltese flora and ID of plants.
I call every Reichardia I see in Malta: Reichardia picroides. I have no idea how to identify intermedia from picroides, even though many authors described both as occurring. In Malta picroides is very common everywhere and I mean everywhere!
If the involucral bracts are 4mm long and 2 mm wide with a transparent margin not more than half a mm, it is R. picroides while if the bracts are more than 4mm and 2mm respectivelyand the margin up about 1 mm membranous, than its R. intermedia. From the little I see in the 3rd pic, I think its R. picroides