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  2. 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".

  3. Tillandsia - Wikipedia

    en.wikipedia.org/wiki/Tillandsia

    Now the plant can absorb more light. When the sun dries the plants, they turn white. Thanks to this special survival trick, plants without roots can absorb fog droplets as well as rainwater and thus cover their water needs. [18] More than one-third of a tropical forest's vascular plants are epiphytes which species of Tillandsia are part of.

  4. 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.

  5. When the White Lilacs Bloom Again - Wikipedia

    en.wikipedia.org/wiki/When_the_White_Lilacs...

    When the White Lilacs Bloom Again (German: Wenn der weiße Flieder wieder blüht) may refer to: A popular German song of the 1920s; When the White Lilacs Bloom Again, a German silent film directed by Robert Wohlmuth; When the White Lilacs Bloom Again, a West German film directed by Hans Deppe

  6. First, the tornado. Then, the invasive plants. How can ... - AOL

    www.aol.com/first-tornado-then-invasive-plants...

    You can fix telephone poles and build houses after a tornado hits, but establishing old-growth trees in Cherokee Park will take generations. First, the tornado. Then, the invasive plants.

  7. Cutting (plant) - Wikipedia

    en.wikipedia.org/wiki/Cutting_(plant)

    A plant cutting is a piece of a plant that is used in horticulture for vegetative (asexual) propagation. A piece of the stem or root of the source plant is placed in a suitable medium such as moist soil. If the conditions are suitable, the plant piece will begin to grow as a new plant independent of the parent, a process known as striking.

  8. Robinia pseudoacacia - Wikipedia

    en.wikipedia.org/wiki/Robinia_pseudoacacia

    The leaves appear relatively late in spring, and turn a clear pale yellow in autumn. The leaflets fold together in wet weather and at night , as some change of position at night is a habit of the entire leguminous family. Young trees are often spiny, especially on root suckers and branches near the ground; mature trees often lack spines.

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