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Related to perfoliate: proliferate
Of or relating to a sessile leaf or bract that completely clasps the stem and is apparently pierced by it.
[New Latin perfoliātus : Latin per-, per- + Latin foliātus, bearing leaves (from folium, leaf; see bhel- in Indo-European roots).]
(Botany) (of a leaf) having a base that completely encloses the stem, so that the stem appears to pass through it
[C17: from New Latin perfoliātus, from Latin per- through + folium leaf]