Which pair of the following plants represents the condition of modification of stipules into spines?
Euphorbia and Ziziphus
Citrus and Euphorbia
Ziziphus and Bougainvillea
Bougainvillea and Citrus
Stem is enlarged in
Which of the following is the correct floral formula of Liliaceae?
Climbing roots are present in
Reproductive roots taking part in reproduction are found in