The correct option is B Lack a pedicel
∙ Sessile flowers are the flowers that do not have a pedicel or a stalk. They are borne directly from the stem. Examples of sessile flowers include saffron, sunflower florets, Achyranthes, etc.
∙ Flowers which bear a stalk or a pedicel are termed pedicellate flowers. Examples include hibiscus, rose, etc.
∙ Flowers that possess calyx with fused sepals are said to have gamosepalous calyx. Datura is a classic example.
∙ Flowers having a second series of sepals, called episepals, collectively called epicalyx. Hibiscus is an example of a flower bearing epicalyx.