soap powder: soap in powdered form mixed with alkaline builders
soap: a cleansing agent made from the salts of vegetable or animal fats
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