Mother of millions 
Mother of Thousands 
Mother-of-Thousands 
Mukdenia rossii 
Navelwort 
Northern redcurrant 
Northwestern saxifrage 
Opposite-leaved Golden-Saxifrage 
Oriental Sweetgum 
Orpine 
Paeonia delavayi 
Paeonia officinalis 
Paeonia wittmanniana 
Paeonia × suffruticosa 
Painted Echeveria 
Pale Stonecrop 
Panda Plant 
Parrot's-feather 
Peak Saxifrage 
Petrosedum amplexicaule 
Poker alumroot 
Prickly currant 
Pseudosedum fedtschenkoanum 
Purple mountain saxifrage