Sentence:  ... the road, always in bad condition, was edged with dog roses that scratched the paint. Blossom after blossom crept past them, draggled by the ungenial year: some had <WSD>cankered</WSD>, others would never unfold: 
Meaning of the word marked with <WSD> tags:  To be or become diseased, or as if diseased, with canker; to grow corrupt; to become venomous.