pituitary dwarf: a dwarf whose condition is caused by a deficiency of growth hormones, rather than by genetic factors (as in the case of the achondroplastic dwarf)
dwarf: a person who is markedly small
asteridae: a group of mostly sympetalous herbs and some trees and shrubs mostly with 2 fused carpels; contains 43 families including Campanulales; Solanaceae; Scrophulariaceae; Labiatae; Verbenaceae; Rubiaceae; Compositae; sometimes classified as a superorder