Shrubs, 50-150 cm (trunks definite, freely branched from bases, branches erect), pleasantly aromatic; root-sprouting. Stems light brown to gray-green (woody, somewhat pliable, leafy), persistently canescent to glabrescent. Leaves deciduous, whitish gray or green to dark gray-green; blades narrowly elliptic to lanceolate, 1.5-8 × 0.2-1 cm, usually entire, sometimes irregularly lobed, sparsely to densely hairy. Heads in (congested, leafy) paniculiform arrays 10-20 × 0.2-7 cm. Involucres (subtended by green, leaflike bracts) narrowly to broadly campanulate, 3-4 × 2-5 mm. Phyllaries ovate or lanceolate (scarious margins nearly invisible), densely canescent. Florets 4-20; corollas 2-3 mm, resinous (style branches ellipsoid, to 2.3 mm, exsert, gland-dotted). Cypselae (light brown) 1-2.3 mm, resinous.