Assertion: willow's bark | /r/CapableOf | become ridged
Facets:
value: quickly
type: MANNER
value: on older trees
type: LOCATION
value: roughly
type: DEGREE
Source sentences:
text: The trunk has an almost conical symmetrical crown; the smooth grayish-black bark becomes roughly ridged on older trees.
text: The bark on the trunk and main branches starts smooth and grey-green in colour, but quickly becomes corky and ridged.