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  2. Variegation - Wikipedia

    en.wikipedia.org/wiki/Variegation

    This can happen when an air layer is located just under the epidermis resulting in a white or silvery reflection. [8] It is sometimes called blister variegation. [citation needed] Pilea cadierei (aluminum plant) shows this effect. Leaves of most Cyclamen species show such patterned variegation, varying between plants, but consistent within each ...

  3. Biological pigment - Wikipedia

    en.wikipedia.org/wiki/Biological_pigment

    Chlorophyll is the primary pigment in plants; it is a chlorin that absorbs blue and red wavelengths of light while reflecting a majority of green. It is the presence and relative abundance of chlorophyll that gives plants their green color. All land plants and green algae possess two forms of this pigment: chlorophyll a and chlorophyll b.

  4. Melanism - Wikipedia

    en.wikipedia.org/wiki/Melanism

    White Silkie rooster Black Silkie rooster. The chicken breeds Silkie and Ayam Cemani commonly exhibit this trait. Ayam Cemani is an uncommon and relatively modern breed of chicken from Indonesia. They have a dominant gene that causes hyperpigmentation (Fibromelanosis), making the chicken entirely black; including feathers, beak, and internal ...

  5. 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.

  6. Why you should take steps if you see a grayish powder ... - AOL

    www.aol.com/news/why-steps-see-grayish-powder...

    As the growing season progresses, keep an eye out for a white or grayish-white powder on your plants. That’s powdery mildew, a fungus that affects a wide range of fruits, vegetables and flowers ...

  7. What are fall colors? How changing leaves give off ...

    www.aol.com/fall-colors-changing-leaves-off...

    When and how the leaves change color depends on tree species – some have leaves that just turn brown and fall. Weather and temperature also impact fall foliage. Warm, sunny days accompanied by ...

  8. How Often Should You Water Indoor Plants in Winter to ... - AOL

    www.aol.com/lifestyle/often-water-indoor-plants...

    As plants dry out, their leaves shift in color from green to yellow and brown, and they may feel brittle to the touch. Severely parched leaves will often curl up and eventually drop off the plant ...

  9. Coral bleaching - Wikipedia

    en.wikipedia.org/wiki/Coral_bleaching

    Coral bleaching is the process when corals become white due to loss of symbiotic algae and photosynthetic pigments. This loss of pigment can be caused by various stressors, such as changes in temperature, light, or nutrients.