Assertion: heather's leaf | /r/SimilarTo | the cap of a spring purse
Facets:
Source sentences:
text: The leaves are like a narrow segment of a sphere, consisting of two parts, like the cap of a spring purse, the concave part outwards, each of which falls back with indented edges (like an iron spring fox-trap); upon anything touching the leaves, or falling between them, they instantly close like a spring trap, and confine any insect or anything that falls between them.