Stem tendrils (climbing in function) develop from axillary bud. Stem tendrils are in all of the following except –

Thorn of Citrus and Bougainvillea is modified –

Thorn develops from –

Some plants of arid regions modify their stems into flattened (Opuntia), or fleshy cylindrical (Euphorbia) green structures called –

In Banana, Pineapple and Chrysanthemum, the lateral branches originate from the basal and underground portion of mainstem and then come obliquely upward giving rise to leafy shoots. These branches are called –

Offset is one internode long runner and its each node bears rosette of leaves and a tuft of roots. It is found in aquatic plants like –

In plants like Jasmine and Mint, a slender lateral branch arises from the base of main axis and after growing aerially for some time arch downwards to touch the ground and forms new plant. Such lateral branches are called –

In which of the following plants, underground stems spread to new niches and when older parts die new plants are formed –

Leaves –

Which of the following is correct?

Presence of sheathing leafbase covering the stem partially or wholly is the characteristic of certain –

Leafbase is swollen to form pulvinus in –

What is the function of thin flexible petiole?

Which of the following statements is false about leaf?

Multifoliate compound leaf (Palmate compound leaf) is found in –

In a Pinnate compound leaf (as seen in Neem) a number of leaflets are present on a common axis, the rachis. The rachis represents the –