per·fo·li·ate /ˌpɝˈfoliət, ˈpɚ/
(a.)莖貫穿葉而生長的,貫穿性的
Per·fo·li·ate a.
1. Bot. Having the basal part produced around the stem; -- said of leaves which the stem apparently passes directory through.
2. Zool. Surrounded by a circle of hairs, or projections of any kind.
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perfoliate
adj : of a leaf having the base united around (and apparently
pierced by) the stem