Which of the following is a flowering plant with nodules containing filamentous nitrogen fixing micro-organism?
Crotalaria juncea
Cycas revoluta
Cicer arietinum
Casuarina equisetifolia
In roots, branches $(Secondary\, roots)$ are
Coleorrhiza is a cap like covering over
Study of flowers is
Odd sepal is enlarged and leaf-like in
A mature angiosperm that bears only one leaf is