suffruticose, leaves becoming glabrous above, canescent beneath, interruptedly bi-pinnati-partite, the pinnules linear-acute, entire or toothed, with recurved margins, rachis pectinate with similar lobules, the petiole leaf-stipuled at base; stipules simple or divided; heads racemoso-paniculate, secund, hemispherical, cernuous; inv. scales oblong, obtuse, scarious, canescent at back, with a green medial line; corollas naked; recept. conical, pilose! Stems robust, 2–3 feet high, much branched and leafy, tomentose, rib-striate. Leaves 2–3 inches long, petioled, bipinnate, the pinnæ 1/2–1 inch long, pinnules 3–5 lines long, 1/2 line wide. Racemes in a much-branched, terminal panicle. Heads 1 1/2–2 lines diameter. A. vestita, Wall! from India, is very near indeed to this, if it be permanently distinct.