, Plants of the World Online listed 1,688 accepted genera in the family Asteraceae. Those genera are listed with their author citations. Taxonomic synonyms are not included. A List of genera is from Plants of the World Online unless otherwise cited. Aaronsohnia Warb. & Eig Abrotanella Cass. Acamptopappus A.Gray – goldenhead Acanthocephalus Kar. & Kir. Acanthocladium F.Muell. Acanthodesmos C.D.Adams & duQuesnay Acanthospermum Schrank – starburr Acanthostyles R.M.King & H.Rob. Achillea L. – yarrow Achnophora F.Muell. Achnopogon Maguire, Steyerm. & Wurdack Achyrachaena Schauer – blow wives Achyranthemum N.G.Bergh Achyrocline (Less.) DC. Achyropappus Kunth Acilepidopsis H.Rob. Acilepis D.Don Acmella Rich. ex Pers. Acomis F.Muell. Acourtia D.Don – desert peony Acrisione B.Nord. Acritopappus R.M.King & H.Rob. Actinobole Endl. Acunniana Orchard Adelostigma Steetz Adenanthellum B.Nord. Adenocaulon Hook. – trailplant Adenocritonia R.M.King & H.Rob. Adenoglossa B.Nord. Adenoon Dalzell Adenophyllum Pers. – dogweed Adenostemma J.R.Forst. & G.Forst. – medicineplant Adenostyles Cass. Adenothamnus D.D.Keck Aedesia O.Hoffm. Aequatorium B.Nord Aetheolaena Cass. Aetheorhiza Cass. Afroaster J.C.Manning & Goldblatt Ageratella A.Gray ex S.Watson Ageratina Spach – snakeroot Ageratinastrum Mattf. Ageratum L. – whiteweed Agnorhiza (Jeps.) W.A.Weber Agoseris Raf. – mountain dandelion Agrianthus Mart. ex DC. Ainsliaea DC. Ajania Poljakov Ajaniopsis C.Shih Alatoseta Compton Albertinia Spreng. Aldama La Llave Alepidocline S.F.Blake Alfredia Cass. Aliella Qaiser & Lack Allagopappus Cass. Allardia Decne. Allittia P.S.Short Allocephalus Bringel, J.N.Nakaj. & H.Rob. Alloispermum Willd. Allopterigeron Dunlop Almutaster Á.Löve & D.Löve – alkali marsh aster Alomia Kunth Alomiella R.M.King & H.Rob. Amauria Benth. Ambassa Steetz Amberboa (Pers.) Less. Amblyolepis DC. Amblyopappus Hook. & Arn. Amblysperma Benth. Amboroa Cabrera Ambrosia L. – bursage, ragweed Ameghinoa Speg. Amellus L. Ammobium R.Br. Amolinia R.M.King & H.Rob. Ampelaster G.L.Nesom – climbing aster Amphiachyris (DC.) Nutt. – broomweed Amphiglossa DC. Amphipappus Torr. & A.Gray – chaffbush Amphoricarpos Vis. Anacantha (Iljin) Soják Anacyclus L. Ananthura H.Rob. & Skvarla Anaphalioides (Benth. & Hook.f.) Kirp. Anaphalis DC. – pearly everlasting Anastraphia D.Don Anaxeton Gaertn. Ancathia DC. Ancistrocarphus A.Gray Anderbergia B.Nord. Andicolea Mayta & Molinari Andryala L. Anemocarpa Paul G.Wilson Angeldiazia M.O.Dillon & Zapata Angianthus J.C.Wendl. Anisocarpus Nutt. Anisochaeta DC. Anisocoma Torr. & A.Gray Anisopappus Hook. & Arn. Antennaria Gaertn. – pussytoes Anteremanthus H.Rob. Anthemis L. – Roman chamomile Anticona E.Linares, J.Campos & A.Galán Antillanthus B.Nord. Antillia R.M.King & H.Rob. Antiphiona Merxm. Anvillea DC. Apalochlamys Cass. Aphanactis Wedd. Aphanostephus DC. – doze daisy Aphelexis D.Don Aphyllocladus Wedd. Apodocephala Baker Apopyros G.L.Nesom Aposeris Neck. Apostates Lander Apowollastonia Orchard Aquilula G.L.Nesom Arbelaezaster Cuatrec. Archanthemis Lo Presti &