Which of the following is a flowering plant with nidules containing filamentous nitrogen-fixing microorganism

Options

A. Casuarina equisetifolia
B. Crotalaria juncea
C. Cycas revoluta
D. Cicer arietinum

Answer

A

Explanation

The filamentous nitrogen fixing micro organisms like Frankia occurs in root nodule of non leguminous plants like casuarina and alnus.