The fruits of Xanthium are dispersed by animals because
These are having sticky substance
These are edible
These are provided with hooks
These are light in weight
A weed belonging to family Asteraceae which has spread in all parts of India is
In Acacia species, the first few leaves are pinnately compound. Then there are leaves with flattened petiole and fewer pinnae. The leaves of adult plant has parallel veined flattened petiole and no pinnae. It shows that
Large green coloured bract in spadix is known as
Tricarpellary axile placentation is characteristic of