| Noun | 1. | Seriphidium - woody plants grown chiefly for their silver or grey and often aromatic foliage; formerly included in the genus Artemisia asterid dicot genus - genus of more or less advanced dicotyledonous herbs and some trees and shrubs aster family, Asteraceae, Compositae, family Asteraceae, family Compositae - plants with heads composed of many florets: aster; daisy; dandelion; goldenrod; marigold; lettuces; ragweed; sunflower; thistle; zinnia Artemisia cana, gray sage, grey sage, Seriphidium canum, silver sage, silver sagebrush - low much-branched perennial of western United States having silvery leaves; an important browse and shelter plant Artemisia maritima, sea wormwood, Seriphidium maritimum - plants of western and northern European coasts Artemisia tridentata, big sagebrush, Seriphidium tridentatum, blue sage - aromatic shrub of arid regions of western North America having hoary leaves |