A leaflet that is slender and coiling and lacks a lamina. [source: ISBN:9780881928501]
Comment
Aids plant in climbing. If the tendril is derived from the terminal leaflet, use this term instead of leaf apex tendril (PO:xxxx). See also leaf tendril (PO:0025361), leaf apex tendril (PO:0025363), branch tendril (PO:0025364), stem apex tendril (PO:0025365), leaf rachis tendril (PO:0025366), and prophyll tendril (PO:0025367). Careful observation is required to correctly classify some tendrils.