In $Passiflora$,the tendrils are modified:

In $Opuntia$,the stem is modified into a flattened green structure to perform the function of leaves (i.e.,photosynthesis). Cite some other examples of modifications of plant parts for the purpose of photosynthesis.

Modified stem present in $Gladiolus$ is:

What type of stem does $Zamia$ $pygmaea$ possess?

Corm is characterised by

Which of the following is not a modification of the stem for climbing?