Rob Duffy: Sidewalk Botanist gets close and personal with a saxifrage and illustrates the tribulations of using
I borrowed BioBank’s copy of “Poland” to try and resolve the mystery of its identity from a
fragment I had taken – comprising fully intact leaves- and found myself keying out Saxifraga
umbrosa (Pyrenean saxifrage) , or Saxifrage nivalis (Alpine saxifrage). I was really attracted to the
latter because “Poland” refers to “the long wavy cilia near the base” (of the petiole).