Rue-leaved Saxifrage for #WildflowerHour from a car park in #Bristol on Tuesday. Saxifrage means stone-breaker/ Wikipedia thinks this means it was used to treat kidney stones, but when you see it growing on bare tarmac you do wonder if it can sink its roots into rock. #WildflowerHour #StoryPlants #Bloomscrolling #botany #plants #flowers #wildflowers #photography