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  2. Aridity - Wikipedia

    en.wikipedia.org/wiki/Aridity

    Arid regions of the Western United States as mapped in 1893. Aridity is the condition of geographical regions which make up approximately 43% of total global available land area, characterized by low annual precipitation, increased temperatures, and limited water availability.

  3. Glossary of botanical terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_botanical_terms

    A prefix meaning "two", e.g. bisulcate, having two sulci or grooves. biennial A plant which completes its life cycle (i.e. germinates, reproduces, and dies) within two years or growing seasons. Biennial plants usually form a basal rosette of leaves in the first year and then flower and fruit in the second year. bifid

  4. Desert ecology - Wikipedia

    en.wikipedia.org/wiki/Desert_ecology

    Plants that can survive in arid deserts are called xerophytes, meaning they are able to survive long dry periods. Such plants may close their stomata during the daytime and open them again at night. During the night, temperatures are much cooler, and plants will experience less water loss, and intake larger amounts of carbon dioxide for ...

  5. Xerophyte - Wikipedia

    en.wikipedia.org/wiki/Xerophyte

    Plants absorb water from the soil, which then evaporates from their shoots and leaves; this process is known as transpiration.If placed in a dry environment, a typical mesophytic plant would evaporate water faster than the rate of water uptake from the soil, leading to wilting and even death.

  6. Semi-arid climate - Wikipedia

    en.wikipedia.org/wiki/Semi-arid_climate

    Furthermore, to delineate hot semi-arid climates from cold semi-arid climates, a mean annual temperature of 18 °C (64.4 °F) is used as an isotherm. A location with a BS-type climate is classified as hot semi-arid (BSh) if its mean temperature is above this isotherm, and cold semi-arid (BSk) if not. [1]

  7. Crassulacean acid metabolism - Wikipedia

    en.wikipedia.org/wiki/Crassulacean_acid_metabolism

    The pineapple is an example of a CAM plant.. Crassulacean acid metabolism, also known as CAM photosynthesis, is a carbon fixation pathway that evolved in some plants as an adaptation to arid conditions [1] that allows a plant to photosynthesize during the day, but only exchange gases at night.

  8. Agave - Wikipedia

    en.wikipedia.org/wiki/Agave

    Agave (/ ə ˈ ɡ ɑː v i /; also UK: / ə ˈ ɡ eɪ v i /; [3] Anglo-Hispanic, also US: / ə ˈ ɡ ɑː v eɪ /) [4] is a genus of monocots native to the arid regions of the Americas.The genus is primarily known for its succulent and xerophytic species that typically form large rosettes of strong, fleshy leaves.

  9. Plant - Wikipedia

    en.wikipedia.org/wiki/Plant

    In seed plants (gymnosperms and flowering plants), the sporophyte forms most of the visible plant, and the gametophyte is very small. Flowering plants reproduce sexually using flowers, which contain male and female parts: these may be within the same ( hermaphrodite ) flower, on different flowers on the same plant , or on different plants .