Multiple choice

Leguminous plants contain root nodules in which nitrogen fixing bacteria occurs. Which one of the following plant species has root nodules but they do not belong to legume crop?

  1. Digitaria

  2. Acacia

  3. Panuria

  4. Senna

  5. Cicer

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A Correct answer
Explanation

Digitaria belongs to the family Poaceae. Digitaria is a species of grass known by the common name hairy crabgrass or large crabgrass which has root nodules with nitrogen fixing bacteria.