In botany, a tendril is a specialized stem, leaf or petiole with a thread-like shape used by climbing plants for support and attachment, as well as cellular invasion by parasitic plants such as Cuscuta. There are many plants that have tendrils; including sweet peas, passionflower, grapes and the Chilean glory-flower. Tendrils respond to touch and to chemical factors by curling, twining, or adhering to suitable structures or hosts. Tendrils vary greatly in size from a few centimeters up to 27 inches (69 centimeters) for Nepenthes harryana. The chestnut vine (Tetrastigma voinierianum) can have tendrils up to 20.5 inches (52 centimeters) in length. Normally there is only one simple or branched tendril at each node (see plant stem), but the aardvark cucumber (Cucumis humifructus) can have as many as eight.
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👉 Tendril in the context of Vine
A vine is any plant with a growth habit of trailing or scandent (that is, climbing) stems, lianas, or runners. The word vine can also refer to such stems or runners themselves, for instance, when used in wicker work.
In parts of the world, including the British Isles, the term "vine" usually applies exclusively to grapevines, while the term "climber" is used for all climbing plants.
Tendril in the context of Pithophora
Pithophora is a genus of green algae in the family Pithophoraceae. Molecular evidence suggests it contains a single species, Pithophora roettleri. AlgaeBase accepts another species, Pithophora inaequalis.
Pithophora grows as a mass of floating, branched filaments. It grows in stagnant, warm-temperate or tropical fresh water, but also has been reported from moist soil. Cells are long, cylindrical, with a diameter of up to 200 μm and typically 5–20 times as long as wide. Terminal cells are conical, or can produce secondary rhizoids which are curved and attach to a surface like a tendril. Pithophora is easily identified in reproductive condition due to its akinetes, which are single and intercalary or terminal. Akinetes are swollen, with dark cell contents. Akinetes germinate and develop into new branches.
Tendril in the context of Morning glory
Morning glory (also written as morning-glory) is the common name for over 1,000 species of flowering plants in the family Convolvulaceae, whose taxonomy and systematics remain in flux. These species are distributed across numerous genera, including:
- Argyreia
- Astripomoea
- Calystegia
- Convolvulus
- Ipomoea (the largest genus)
- Lepistemon
- Merremia
- Operculina
- Rivea
- Stictocardia
Ipomoea tricolor, commonly known simply as "morning glory", is the archetypical species for the group and is renowned for its many beautiful varieties, such as 'Heavenly Blue', 'Flying Saucers', and 'Pearly Gates'.
Tendril in the context of Bignoniaceae
Bignoniaceae (/bɪɡˌnoʊniˈeɪsiiː/) is a family of flowering plants in the order Lamiales commonly known as the bignonias or trumpet vines. It is not known to which of the other families in the order it is most closely related.
Nearly all of the Bignoniaceae are woody plants, but a few are subwoody, either as vines or subshrubs. A few more are herbaceous plants of high-elevation montane habitats, in three exclusively herbaceous genera: Tourrettia, Argylia, and Incarvillea. The family includes many lianas, climbing by tendrils, by twining, or rarely, by aerial roots. The largest tribe in the family, called Bignonieae, consists mostly of lianas and is noted for its unique wood anatomy.