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  2. Leaf - Wikipedia

    en.wikipedia.org/wiki/Leaf

    The leaves of tricussate plants such as Nerium oleander form a triple helix. The leaves of some plants do not form helices. In some plants, the divergence angle changes as the plant grows. [22] In orixate phyllotaxis, named after Orixa japonica, the divergence angle is not constant. Instead, it is periodic and follows the sequence 180°, 90 ...

  3. Heliotropism - Wikipedia

    en.wikipedia.org/wiki/Heliotropism

    Heliotropism, a form of tropism, is the diurnal or seasonal motion of plant parts (flowers or leaves) in response to the direction of the Sun. The habit of some plants to move in the direction of the Sun, a form of tropism, was already known by the Ancient Greeks. They named one of those plants after that property Heliotropium, meaning "sun turn".

  4. Plant development - Wikipedia

    en.wikipedia.org/wiki/Plant_development

    In addition, leaves produced during early growth tend to be larger, thinner, and more irregular than leaves on the adult plant. Specimens of juvenile plants may look so completely different from adult plants of the same species that egg-laying insects do not recognize the plant as food for their young.

  5. Coca - Wikipedia

    en.wikipedia.org/wiki/Coca

    The coca plant resembles a blackthorn bush, and grows to a height of 2 to 3 m (7 to 10 ft). The branches are curved, and the leaves are thin, opaque, oval, and taper at the extremities.

  6. Thorns, spines, and prickles - Wikipedia

    en.wikipedia.org/wiki/Thorns,_spines,_and_prickles

    Prickles on a blackberry branch. In plant morphology, thorns, spines, and prickles, and in general spinose structures (sometimes called spinose teeth or spinose apical processes), are hard, rigid extensions or modifications of leaves, roots, stems, or buds with sharp, stiff ends, and generally serve the same function: physically defending plants against herbivory.

  7. These 12 Big-Leaf Plants Will Turn Your Home into a ... - AOL

    www.aol.com/12-big-leaf-plants-turn-130000395.html

    Read on for the 12 best big-leaf plants that can make it happen (take it or leaf it!). ... Indoors, though, you have more opportunities to truly watch the plant grow—while, in turn, growing ...

  8. Khat - Wikipedia

    en.wikipedia.org/wiki/Khat

    Khat leaves of Harar. Khat is a slow-growing shrub or tree that typically attains a height of 1–5 meters (3 feet 3 inches – 16 feet 5 inches). However, it can reach heights of up to 10 m (33 ft) in equatorial areas. The plant usually grows in arid environments, at a temperature range of 5–35 degrees Celsius (41–95 degrees Fahrenheit). [18]

  9. Trump assault on USAID leaves plant that makes peanut butter ...

    www.aol.com/news/trump-assault-usaid-leaves...

    In normal times, Moore’s plant produces 10 pouches of the lifesaving paste every second. Each small bag contains 500 calories’ worth of the special peanut butter — which does not require ...