Guiera
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Guiera is a flowering plant genus in the family Combretaceae. Guiera senegalensis is the only known species in the genus, found in Tropical Africa in dry areas from Senegal to Sudan (requiring much sunlight and light dry soil). The plant produces the tannin 3,4,5-Tri-O-galloylquinic acid and several alkaloids of the harmane family.
Guiera is a flowering plant genus in the family Combretaceae. Guiera senegalensis is the only known species in the genus, found in Tropical Africa in dry areas from Senegal to Sudan (requiring much sunlight and light dry soil). The plant produces the tannin 3,4,5-Tri-O-galloylquinic acid and several alkaloids of the harmane family.
Water pump
Guiera naturally "pumps" water to the surface in a process called hydraulic lift or hydraulic redistribution (HR): When grown as a companion plant with millet and other thirsty crops, excess water drawn up by Guiera senegalensis ’ deep roots during the night is excreted and becomes available to the surrounding crop, dramatically increasing the yield in the case of millet.
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Text derived from https://en.wikipedia.org/w/index.php?oldid=1329391691 under CC BY-SA 4.0; modifications have been made.