ten·dril /ˈtɛndrəl/
  卷鬚,蔓,卷鬚狀之物
  Ten·dril n.  Bot. A slender, leafless portion of a plant by which it becomes attached to a supporting body, after which the tendril usually contracts by coiling spirally.
  Note: ☞ Tendrils may represent the end of a stem, as in the grapevine; an axillary branch, as in the passion flower; stipules, as in the genus Smilax; or the end of a leaf, as in the pea.
  Ten·dril a. Clasping; climbing as a tendril. [R.]
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  tendril
       n : slender stemlike structure by which some twining plants
           attach themselves to an object for support