Assertion: common periwinkle | /r/CapableOf | pose threat
Facets:
value: to communities
type: TRANSITIVE-OBJECT
value: to native plants
type: TRANSITIVE-OBJECT
Source sentences:
text: Common periwinkle poses a threat to native plants and communities because it grows vigorously, forming a dense monotypic evergreen groundcover that displaces and excludes most other plants, including native wildflowers.