tendril
US /ˈten.drəl/
UK /ˈten.drəl/

1.
卷须, 藤蔓
a slender threadlike appendage of a climbing plant, often growing in a spiral, that stretches out and twines around any suitable support.
:
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The pea plant sent out a delicate tendril to grasp the trellis.
豌豆植物伸出细长的卷须抓住棚架。
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The vine's tendrils wrapped tightly around the fence.
藤蔓的卷须紧紧缠绕在篱笆上。