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• n  a plant having hard lignified tissues or woody parts especially stems

• ligneous plant

News & Articles

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• Biofuel Investments at Seven-Year Low as BP Blames Cost
  BP Plc (BP/) and Royal Dutch Shell (RDSA) Group Plc have halted funds for four separate ventures because the technology to produce fuel from woody plants and waste won’t be economical until 2020 or beyond, executives at both companies said in interviews.
  July 7, 2013 - Bloomberg