Samolus valerandii vs Bellardia trixago

http://www.floralimages.co.uk/images/samolus_valerandi_bcb.jpg
http://luirig.altervista.org/cpm/albums/sturm2/samolus-valerandi-0942.jpg
http://www.fotonatura.org/galerias/fotos/usr12278/12517240ya.jpg
http://www.first-nature.com/flowers/images/bellardia_trixago1.jpg
http://lh4.ggpht.com/_hTt7ulSkLpI/R5r19JTdOvI/AAAAAAAACHI/BYef3uaQL1M/s800/bellardia_trixago_2.jpg