Which one of the following plants shows alternate phyllotaxy?
Sunflower
Guava
NeriumCalotropis
Calotropis
Napiform roots are recorded from
The floral formula, Br $\oplus$ $\mathop {\rm{O}}\limits_ + \,\,\,\,\,\,\,{{\rm{P}}_{{\rm{3 }} + {\rm{3}}}}\,\,\,\,{{\rm{A}}_{{\rm{3}} + {\rm{3}}}}\,{\underline G _{(3)}}$ belongs to family
Free central placentation is found in
A fleshy root tapering at both ends is
In many cultivated ornamental flowers, number of petal whorls is higher than the one in wild type. Extra petals are generally modified