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Thorns bear leaves in A) Punica B) Duranta C) Bougainvillea D) Carissa
Thorns bear leaves in Punica and Duranta. In Duranta, thorns bear leaves and flowers while in Punica granatum, the thorns bear both leaves and branches.
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Characteristics and functions of Stem
Modifications of Stem
Identify the plants which climb with thorns A) Duranta B) Artabotrys C) Bougainvillea D) Carissa
Duranta and Bougainvillea climb with the help of thorns. In Bougainvillea and Duranta axillary buds develop into thorns and help in climbing.
Axillary buds are modified into hooks in
Axillary buds of opposite leaves are modified into hooks in Hugonia.
Peduncle is modified into hook in
In Artabotrys the apical bud is modified into an inflorescence and the peduncle is modified into a hook which helps in climbing.
Areole is found in
In Opuntia all the leaves of axillary bud modify into a group of spines. Some spines are small and appear as hairs. They are called barbs. The group of barbs spines present at every node is known as areole.
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