Mediterranean Toadflax 
Mexican foxglove 
Mountain foxglove 
Nanorrhinum scoparium 
Nettle-leaf speedwell 
New Zealand Hebe 
Nothochelone 
Pale beardtongue 
Pale Speedwell 
Pale Weasel's-Snout 
Parrys Penstemon 
Pelisser's Toadflax 
Penstemon fruticosus 
Penstemon procerus 
Penstemon rupicola 
Persian speedwell 
Pink Turtlehead 
Plantago amplexicaulis 
Plantago bellardi 
Plantago cylindrica 
Plantago lagopus 
Plantago sarcophylla 
Plantago sinaica 
Purple Chinese houses