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  2. Underground farming - Wikipedia

    en.wikipedia.org/wiki/Underground_farming

    The Lunar greenhouse is an underground farm made by Phil Sadles and Gene Giacomelli of the University of Arizona's Controlled Environment Agriculture Center (CEAC) [4] [5] The urine and exhaled air of the astronauts is reused in the system by the plants. [6] GreenForges is a Canadian startup developing underground farming systems. [7] [8] [9]

  3. Tumbleweed - Wikipedia

    en.wikipedia.org/wiki/Tumbleweed

    In most such species, the tumbleweed is in effect the entire plant apart from the root system, but in other plants, a hollow fruit or inflorescence might detach instead. [1] Xerophyte tumbleweed species occur most commonly in steppe and arid ecosystems , where frequent wind and the open environment permit rolling without prohibitive obstruction.

  4. Prehistoric agriculture on the Great Plains - Wikipedia

    en.wikipedia.org/wiki/Prehistoric_agriculture_on...

    In addition, on the northern Great Plains the growing season is short. Agriculture on the Plains seems to have had an ebb and flow, advancing westward into the drier areas in favorable wet periods and retreating in drier periods. The periodic abundance or scarcity of bison was also a factor in human settlements on the plains. The animal was an ...

  5. Rhizanthella gardneri - Wikipedia

    en.wikipedia.org/wiki/Rhizanthella_gardneri

    Rhizanthella gardneri is a leafless, sympodial herb with a horizontal rhizome 60–120 mm (2.4–4.7 in) below the soil surface. Beginning in late May to early June, the plant produces up to 100 small, inward-facing pinkish to deep red and cream coloured flowers 4–5 mm (0.16–0.20 in) wide, surrounded by six to twelve pinkish-cream bracts.

  6. Flora of the Sierra Nevada alpine zone - Wikipedia

    en.wikipedia.org/wiki/Flora_of_the_Sierra_Nevada...

    [5]: 17 [11] Fleshy roots and underground organs store food in the form of starches and sugars, allowing the plant to quickly grow when snow melts. [5] Many plants form flower buds during the summer before the summer that they open, allowing a quick bloom for the short growing season. [5]

  7. Archaeophyte - Wikipedia

    en.wikipedia.org/wiki/Archaeophyte

    Rhododendron ponticum is an example of a species which recolonised central and northern Europe following the Ice Ages. [1]An archaeophyte is a plant species which is non-native to a geographical region, but which was an introduced species in "ancient" times, rather than being a modern introduction.

  8. Prehistoric agriculture in the Southwestern United States

    en.wikipedia.org/wiki/Prehistoric_agriculture_in...

    Lithic mulch was another technique of agriculture in the Southwest. Rocks or cobbles were used as a mulch around growing plants and in fields. The rocks acted as a mulch to preserve moisture, decrease soil erosion, control weeds, and increase nighttime temperatures through radiation and retention of heat by the rocks. [30]

  9. Trifolium subterraneum - Wikipedia

    en.wikipedia.org/wiki/Trifolium_subterraneum

    Trifolium subterraneum, the subterranean clover [2] (often shortened to sub clover), subterranean trefoil, is a species of clover native to Europe, Southwest Asia, Northwest Africa and Macaronesia. The plant's name comes from its underground seed development ( geocarpy ), a characteristic not possessed by other clovers.