Parachute-like pappus is found in

Raphides are needle-like crystals of calcium oxalate which are specially found in

Raphides are needle-like crystals made up of

Explain the importance of the following structures in plants:
$(i)$ Root nodules (Rhizobium association)
$(ii)$ Stipular tendrils

Identify the correct terms for the following analogy-based questions:
$(i)$ Sunflower : Alternate phyllotaxy :: Alstonia : ...........
$(ii)$ Datura : Actinomorphic flower :: Bean : ............

Match the plants in Column-$I$ with their specific floral characteristics in Column-$II$. Select the correct option.

Column-$I$	Column-$II$
$(A)$ Hibiscus	$(p)$ Thalamus disc-shaped
$(B)$ Lemon	$(q)$ Ovary inferior
$(C)$ Rose	$(r)$ Thalamus dome-shaped
$(D)$ Sunflower	$(s)$ Perianth
$(E)$ Bougainvillea	$(t)$ Thalamus cup-shaped
	$(u)$ Ovary superior