Assertion: naiad's leaf | /r/CapableOf | taper to the tip
Facets:
value: gradually
type: MANNER
Source sentences:
text: It is distinguished from other Najas by leaves gradually tapering to the tip, sheaths with rounded sides, numerous minute spine-like teeth around the blade and sheath edge with 1 or 2 teeth at the leaf tip, and smooth, shiny fruits with faint pattern of cells in rows on the surface.