Annual, biennial or perennial herbs, sometimes shrubs, rarely trees, tissues sometimes containing milky sap, glabrous, pubescent, tomentose, spinous or variously sessile- or stipitate-glandular. Leaves alternate or sometimes opposite, exstipulate (but sometimes with stipuliform appendages), entire, toothed, lobed or variously dissected. Individual flowers usually numerous, aggregated and ± sessile (briefly immersed to very shortly stipitate) on a common receptacle and surrunded by an involucre of 1-many series of phyllaries (involucral bracts),the whole comprising a capitulum; phyllaries free, rarely connate; capitula solitary to very many, rarely agreegrated into secondary capitulum-like glomerules.Receptable sometimes bearing paleae (scales), hairs or bristles.Flowers (florets)epigynous, bisexual, female, m ale(at least functionally so) or neuter (sterile). Calyx absent, often replaced on apex of ovary by a pappus of 1 or more series of bristles and / orscales. Corolla gamopetalous, tabular throughout or dilated or 1(-2)-lipped above,variously truncate or 1-5-toothed at apex (appices); rarely corolla absent. Stamens (1-)5, epipetalous, filaments free anthers laterally connate into a cylinder around style (free in one species). Ovary inferior, 1-celled with one basal ovule; style usually divided above into two branches, sometimes entire on male flowers, emerging through anther cylinder, first collecting and exposing pollen,later exposing stigmatic surfaces if bisexual. Fruit an achene (cypsela) usually bearing a persistent or deciduous pappus; pappus sessile or borne on a beak(rostrum).
Annual,biennial or perennial herbs,shrubs or small evergreen trees,mostly strong-smelling; stems erect or ascending, sometimes scrambling,rarely prostrate. Leaves alternate, simple or pinnately or lyrately lobed,denticulate to biserrate,usually pubescent on one or both surfaces.Capitula disciform,in terminal and sometimes axillary panicles. Involucres cylindrical to hemispheric,multiseriate;phyllaries ovate to linear.Receptacle flat or convex,glabrous or pilose, sometimes fimbrillate.Flowers numerous,mariginal ones female,central ones many fewer,bisexual.Corollas often yellow,rarely purple.Female flowers filiform; corolla minutely 2-4-toothed, usually glabrous. Bisexual flowers (3-)5-merous; corolla narrowly infundibular,teeth usually with minute glandular hairs on back and often longer eglandular ones; anthers tailed. Achenes usually oblong, minutely 5-ribbed, pubescent. Pappus of 1 series of simple white or reddish bristles,subequal to corollas. Considered an artificial genus with many species that probably require transfer to the plucheeae.
Evergreen undershrub or small tree,(0.5-)3-6m, smelling of camphor,with buff sericeous hairs;stems densely tomentose. Leaves ovate-lanceolate or lanceolate,6-30 x 1.5-12cm,acuminate,obtuse to attenuate at base,usually with petiole to 3cm,tomentose above,lanate beneath,coarsely or weakly (bi)serrate,often 1(-3)pairs of lateral lobes present,usually confined to petiole or base of blade,oblong-elliptic,oblique,7-23 x 2-5mm.Capitula in dense,terminal,flat-topped panicles.Involucres 5-6-seriate, c 5mm diameter;phyllaries all linear or outermost lanceolate,1.5-7mm,lanate-tomentose. Receptacle fimbrillate.Corollas 4.5-6mm,lobes of bisexual ones with glandular and sometimes few eglandular hairs.Pappus reddish.