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The Botanical System of the Plants
Das Botanisches System der Pflanzen
Friedrich A. Lohmueller

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Familia: Asteraceae Dum. Compositae Giseke (nom. altern.)
Genus:  Aster L.

Aster amellus
Aster amellus
 
Aster amellus
Aster amellus
'Lady Hindlip'
   

Species: ~ >300
  • Aster abatus S.F.Blake (1925)
  • Aster acadiensis Shinners (1944)= Symphyotrichum lateriflorum var. tenuipes (Wiegand) G.L.Nesom
  • Aster acris L. = Aster sedifolius subsp. sedifolius
  • Aster acris var. trinervis Pers.= Aster sedifolius subsp. trinervis (Pers.) Thell.
  • Aster acaulis Wedd. (1857)
  • Aster acerosus Kuntze (1891)
  • Aster acradenius (Greene) Kuntze (1857)
  • Aster acradenius (Greene) Kuntze (1891)
  • Aster aculeatus Labill. (1806)
  • Aster acuminatus Michx. (1803)= Oclemena acuminata (Michx.) Greene
  • Aster acutidens Smyth (1899)
  • Aster adelberti Kuntze (1899)
  • Aster acutidens Smyth (1891)
  • Aster adenolasius F.Muell. (1865)
  • Aster adenolepis S.F.Blake (1940)
  • Aster adenophorus (F.Muell.) F.Muell. (1865)
  • Aster adnatus Nutt. (1834) = Symphyotrichum adnatum (Nutt.) G.L.Nesom
  • Aster adscendens Reiche (1902)
  • Aster ageratoides Turcz.
  • Aster ageratoides subsp. yakushimensis Kitam. = Aster yakushimensis (Kitam.) Soejima & Yahara
  • Aster ageratoides subsp. yoshinaganus Kitam. = Aster yoshinaganus (Kitam.) Mot. Ito & Soejima
  • Aster ageratoides var. ageratoides
    syn.: Aster luxurifolius Tamamsch.
            Aster pensauensis Tamamsch.
            Aster see-burejensis Tamamsch.
            Aster suputinicus Tamamsch.
            Aster sutschanensis Kom.
            Aster trinervius subsp. ageratoides (Turcz.) Grierson
  • Aster ageratoides var. firmus (Diels) Hand.-Mazz.
    syn.: Aster trinervius var. firmus Diels
  • Aster ageratoides var. gerlachii (Hance) C. C. Chang ex Y.Ling
    syn.: Aster gerlachii Hance
  • Aster ageratoides var. heterophyllus Maxim.
  • Aster ageratoides var. intermedius (Soejima) Mot. Ito & Soejima
    syn.: Aster leiophyllus var. intermedius Soejima
  • Aster ageratoides var. lasiocladus (Hayata) Hand.-Mazz.
    syn.: Aster lasiocladus Hayata
  • Aster ageratoides var. laticorymbus (Vaniot) Hand.-Mazz.
    syn.: Aster laticorymbus Vaniot
  • Aster ageratoides var. leiophyllus (Franch. & Sav.) Y.Ling
    syn.: Aster leiophyllus Franch. & Sav.
  • Aster ageratoides var. micranthus Y.Ling
  • Aster ageratoides var. ovalifolius Kitam.
  • Aster ageratoides var. sawadanus Kitam.
  • Aster ageratoides var. tenuifolius Kitam.
  • Aster ageratoides var. yezoensis Kitam. & H. Hara = Aster microcephalus var. yezoensis (Kitam. & H. Hara) Soejima & Mot. Ito
  • Aster alamani Kuntze (1891)
  • Aster aitchisonii Boiss.
  • Aster alatipes Hemsl.
  • Aster albanicus (Degen) Degen (1926)
  • Aster albescens (DC.) Hand.-Mazz.
  • Aster albescens var. albescens
    syn.: Amphirhapis albescens DC.
  •         Microglossa albescens (DC.) Benth. ex C.B.Clarke
  • Aster albescens var. discolor Y.Ling
  • Aster albescens var. glandulosus Hand.-Mazz.
  • Aster albescens var. gracilior Hand.-Mazz.
  • Aster albescens var. levissimus Hand.-Mazz.
  • Aster albescens var. limprichtii (Diels) Hand.-Mazz.
    syn.: Aster limprichtii Diels
  • Aster albescens var. megaphyllus Y.Ling
  • Aster albescens var. niveus Hand.-Mazz.
  • Aster albescens var. pilosus Hand.-Mazz.
  • Aster albescens var. rugosus Y.Ling
  • Aster albescens var. salignus Hand.-Mazz.
  • Aster albus (Nutt.) Eaton & Wright (1840)
  • Aster alpigenus (Torr. & A.Gray) A.Gray = Oreostemma alpigenum var. alpigenum
  • Aster alpigenus var. alpigenus = Oreostemma alpigenum var. alpigenum
  • Aster alpigenus var. andersonii (A.Gray) M. Peck (1941)= Oreostemma alpigenum var. andresonii (A.Gray) G.L.Nesom
  • Aster alpigenus var. haydenii (Porter) Cronquist = Oreostemma alpigenum var. haydenii (Porter) G.L.Nesom
  • Aster alpinus L.
  • Aster alpinus subsp. vierhapperi Onno = Aster alpinus var. vierhapperi (Onno) Cronquist
  • Aster alpinus var. alpinus
    syn.: Aster alpinus var. dolomiticus (Beck) Onno
            Aster garibaldii Brügger
            Aster korshinskyi Tamamsch.
  • Aster alpinus var. diversisquamus Y.Ling
  • Aster alpinus var. dolomiticus (Beck) Onno = Aster alpinus var. alpinus
  • Aster alpinus var. fallax (Tamamsch.) Y.Ling
    syn.: Aster fallax Tamamsch.
  • Aster alpinus var. serpentimontanus (Tamamsch.) Y.Ling
    syn.: Aster serpentimontanus Tamamsch.
  • Aster alpinus var. vierhapperi (Onno) Cronquist
    syn.: Aster alpinus subsp. vierhapperi Onno
  • Aster altaicus Willd.= Heteropappus altaicus (Willd.) Novopokr.
  • Aster amelloides Besser = Aster amellus L.
  • Aster amellus L. (1753)
    syn.: Aster amelloides Besser
  • Aster amellus subsp. amellus
    syn.: Aster bessarabicus Bernh. ex Rchb.
  • Aster amellus subsp. ibericus (Steven) V.E.Avet.
    syn.: Aster ibericus Steven
  • Aster amnicola E.S.Burgess (1906)
  • Aster ananthocladus Hilliard & B.L.Burtt
  • Aster andersonii (A.Gray) A.Gray = Oreostemma alpigenum var. andresonii (A.Gray) G.L.Nesom
  • Aster andicola Hauman (1918)
    syn.: Aster bellidiastrum Nees ex Walp.
  • Aster andinus Kuntze (1891)
  • Aster andohahelensis Humbert
  • Aster angustissimus Tausch = Aster sedifolius subsp. angustissimus (Tausch) Merxm.
  • Aster annuus L. = Erigeron annuus (L.) Pers.
  • Aster anomalus Engelm. = Symphyotrichum anomalum (Engelm.) G.L.Nesom
  • Aster anticostensis Fernald = Symphyotrichum anticostense (Fernald) G.L.Nesom
  • Aster aragonensis Asso
  • Aster arenosus (A. Heller) S. F. Blake
    syn.: Leucelene arenosa A. Heller
  • Aster argophyllus Labill. = Olearia argophylla (Labill.) F.Muell. ex Benth.
  • Aster argyropholis Hand.-Mazz.
  • Aster argyropholis var. argyropholis
  • Aster argyropholis var. niveus Y.Ling
  • Aster argyropholis var. paradoxus Y.Ling
  • Aster asa-grayi Makino
  • Aster ascendens Lindl. (1834)= Symphyotrichum ascendens (Lindl.) G.L.Nesom
  • Aster ascendens var. parryi D.C.Eaton = Symphyotrichum foliaceum var. parryi (D.C.Eaton) G.L.Nesom
  • Aster asteroides MacMill. (1892)
    syn.: Heterochaeta asteroides DC.
  • Aster auriculatus Franch.
  • Aster avitus Alexander (1939)= Eurybia avita (Alexander) G.L.Nesom
  • Aster azureus Lindl. = Symphyotrichum oolentangiense (Riddell) G.L.Nesom
  • Aster baccharoides (Benth.) Steetz
    syn.: Diplopappus baccharoides Benth.
  • Aster bahamensis Britton = Symphyotrichum subulatum var. elongatum (Bosserdet ex A. G. Jones & Lowry) S. D. Sundb.
  • Aster bakerianus Burtt Davy ex C. A. Sm.
  • Aster baldwinii Torr. & A.Gray = Symphyotrichum undulatum (L.) G.L.Nesom
  • Aster barbatus (DC.) Harv.
    syn.: Agathaea barbata DC.
  • Aster barbellatus Grierson (1964)
  • Aster baronii Humbert (1932)
  • Aster batangensis Bureau & Franch.
  • Aster batangensis var. batangensis
  • Aster batangensis var. staticifolius (Franch.) Y.Ling
    syn.: Aster staticifolius Franch.
  • Aster bellidiastrum (L.) Scop. = Bellidiastrum michelii Cass.
  • Aster bellidiastrum Nees ex Walp. = Aster andicola Hauman
  • Aster bellidioides Buch.-Ham. ex D.Don = Erigeron bellidioides (Buch.-Ham. ex D.Don) Benth. ex C.B.Clarke
  • Aster bellus S. F. Blake = Chaetopappa ericoides (Torr.) G.L.Nesom
  • Aster bernardinus H. M. Hall = Symphyotrichum defoliatum (Parish) G.L.Nesom
  • Aster bessarabicus Bernh. ex Rchb. = Aster amellus subsp. amellus
  • Aster bietii Franch.
  • Aster bigelovii A.Gray = Machaeranthera bigelovii (A.Gray) Greene
  • Aster bipinnatisectus Ludlow ex Grierson
  • Aster xblakei (Porter) House = Oclemena xblakei (Porter) G.L.Nesom
  • Aster blandus Pursh = Symphyotrichum puniceum var. puniceum
  • Aster blepharophyllus A.Gray
  • Aster boltoniae Greene = Psilactis asteroides A.Gray
  • Aster borealis (Torr. & A.Gray) Prov. = Symphyotrichum boreale (Torr. & A.Gray) Á. Löve & D. Löve
  • Aster bowiei Harv.
  • Aster bracei Britton = Symphyotrichum bracei (Britton) G.L.Nesom
  • Aster brachyactis S. F. Blake = Symphyotrichum ciliatum (Ledeb.) G.L.Nesom
  • Aster brachytrichus Franch. (1896)
  • Aster brachytrichus var. angustisquamus Y.Ling
  • Aster brachytrichus var. brachytrichus
  • Aster brachytrichus var. latifolius Y.Ling
  • Aster brachytrichus var. tenuiligulatus Y.Ling
  • Aster bracteolatus Nutt. = Symphyotrichum bracteolatum (Nutt.) G.L.Nesom
  • Aster brevilingulatus (Sch.Bip. ex Hemsl.) McVaugh = Psilactis brevilingulata Sch.Bip. ex Hemsl.
  • Aster brevis Hand.-Mazz.
  • Aster breweri (A.Gray) J.C.Semple (1988) = Eucephalus breweri (A.Gray) G.L.Nesom
  • Aster brickellioides Greene = Eucephalus brickellioides (Greene) G.L.Nesom
  • Aster brickellioides var. glabratus Greene = Eucephalus glabratus (Greene) Greene
  • Aster bullatus Klatt = Symphyotrichum bullatum (Klatt) G.L.Nesom
  • Aster bulleyanus Jeffrey
  • Aster burgessii Britton = Symphyotrichum burgessii (Britton) G.L.Nesom
  • Aster burkei Howell (1900)
  • Aster cabrerae Ariza = Symphyotrichum graminifolium (Spreng.) G.L.Nesom
  • Aster calderi B. Boivin = Symphyotrichum puniceum var. calderi (B. Boivin) G.L.Nesom
  • Aster calvatus (Baker) Herter (1930)= Noticastrum calvatum (Baker) Cuatrec.
  • Aster campestris Nutt. (1840)= Symphyotrichum campestre (Nutt.) G.L.Nesom
  • Aster canescens Pursh (1814)= Machaeranthera canescens (Pursh) A.Gray
  • Aster canus Waldst. & Kit. = Aster sedifolius subsp. canus (Waldst. & Kit.) Merxm.
  • Aster carnerosanus S. Watson = Symphyotrichum carnerosanum (S. Watson) G.L.Nesom
  • Aster carolinianus Walter = Ampelaster carolinianus (Walter) G.L.Nesom
  • Aster caucasicus Willd.
  • Aster chapmanii Torr. & A.Gray = Eurybia chapmanii (Torr. & A.Gray) G.L.Nesom
  • Aster chilensis Nees = Symphyotrichum chilense (Nees) G.L.Nesom
  • Aster chilensis subsp. ascendens (Lindl.) Cronquist = Symphyotrichum ascendens (Lindl.) G.L.Nesom
  • Aster chilensis subsp. chilensis = Symphyotrichum chilense (Nees) G.L.Nesom
  • Aster chilensis subsp. hallii (A.Gray) Cronquist = Symphyotrichum hallii (A.Gray) G.L.Nesom
  • Aster chimanimaniensis W. Lippert
  • Aster chinensis L. = Callistephus chinensis (L.) Nees
  • Aster chlorolepis E. S. Burgess = Eurybia chlorolepis (E. S. Burgess) G.L.Nesom
  • Aster ciliolatus Lindl. = Symphyotrichum ciliolatum (Lindl.) Á. Löve & D. Löve
  • Aster claytonii E. S. Burgess = Eurybia divaricata (L.) G.L.Nesom
  • Aster coerulescens DC. = Symphyotrichum praealtum var. praealtum
  • Aster colchicus Albov
  • Aster commixtus auct. = Eurybia mirabilis (Torr. & A.Gray) G.L.Nesom
  • Aster commixtus (Nees) Kuntze = Eurybia spectabilis (Aiton) G.L.Nesom
  • Aster commutatus (Torr. & A.Gray) A.Gray = Symphyotrichum falcatum var. commutatum (Torr. & A.Gray) G.L.Nesom
  • Aster comptonii W. Lippert
  • Aster concinnus Willd. = Symphyotrichum laeve var. concinnum (Willd.) G.L.Nesom
  • Aster concolor L. = Symphyotrichum concolor (L.) G.L.Nesom
  • Aster confertifolius Hilliard & B. L. Burtt
  • Aster conspicuus Lindl. = Eurybia conspicua (Lindl.) G.L.Nesom
  • Aster conyzae Griess. = Inula conyzae (Griess.) Meikle
  • Aster cordifolius L. = Symphyotrichum cordifolium (L.) G.L.Nesom
  • Aster coriaceus G. Forst. = Celmisia coriacea (G. Forst.) Hook. f.
  • Aster crassulus Rydb. = Symphyotrichum falcatum var. falcatum
  • Aster crenifolius (Fernald) Cronquist = Symphyotrichum crenifolium (Fernald) G.L.Nesom
  • Aster creticus (Gand.) Rech. f.
    syn.: Galatella cretica Gand.
  • Aster crocatus Bertol. = Lycoseris crocata (Bertol.) S. F. Blake
  • Aster curtisii Torr. & A.Gray = Symphyotrichum retroflexum (Lindl.) G.L.Nesom
  • Aster curtus Cronquist
  • Aster cusickii A.Gray = Symphyotrichum cusickii (A.Gray) G.L.Nesom
  • Aster cusickii var. lyallii A.Gray = Symphyotrichum hendersonii (Fernald) G.L.Nesom
  • Aster defoliatus Parish = Symphyotrichum defoliatum (Parish) G.L.Nesom
  • Aster depauperatus Fernald = Symphyotrichum depauperatum (Fernald) G.L.Nesom
  • Aster dimorphophyllus Franch. & Sav. = Doellingeria dimorphophylla (Franch. & Sav.) G.L.Nesom
  • Aster diplostephioides (DC.) C.B.Clarke
    syn.: Heterochaeta diplostephioides DC.
  • Aster diplostephioides var. falconeri C.B.Clarke = Aster falconeri subsp. falconeri
  • Aster divaricatus L. (1753)= Eurybia divaricata (L.) G.L.Nesom
  • Aster dolichophyllus Y.Ling
  • Aster dolichopodus Y.Ling
  • Aster dracunculoides Lam. = Aster sedifolius subsp. dracunculoides (Lam.) Merxm.
  • Aster drummondii Lindl. = Symphyotrichum drummondii (Lindl.) G.L.Nesom
  • Aster dumosus L. = Symphyotrichum dumosum (L.) G.L.Nesom
  • Aster eatonii (A.Gray) Howell = Symphyotrichum bracteolatum (Nutt.) G.L.Nesom
  • Aster elatus (Greene) Cronquist = Oreostemma elatum (Greene) Greene
  • Aster elegans var. engelmannii D. C. Eaton = Eucephalus engelmannii (D.C.Eaton) Greene
  • Aster elliottii Torr. & A.Gray = Symphyotrichum elliottii (Torr. & A.Gray) G.L.Nesom
  • Aster engelmannii (D. C. Eaton) A.Gray = Eucephalus engelmannii (D. C. Eaton) Greene
  • Aster engelmannii var. glaucescens A.Gray = Eucephalus glaucescens (A.Gray) Greene
  • Aster engelmannii var. ledophyllus A.Gray = Eucephalus ledophyllus (A.Gray) Greene
  • Aster engelmannii var. paucicapitatus B. L. Rob. = Eucephalus paucicapitatus (B. L. Rob.) Greene
  • Aster ericoides L. = Symphyotrichum ericoides (L.) G.L.Nesom
  • Aster ericoides var. commutatus (Torr. & A.Gray) B. Boivin = Symphyotrichum falcatum var. commutatum (Torr. & A.Gray) G.L.Nesom
  • Aster ericoides var. parviceps E.S.Burgess = Symphyotrichum parviceps (E.S.Burgess) G.L.Nesom
  • Aster ericoides var. platyphllus Torr. & A.Gray = Symphyotrichum pilosum var. pilosum
  • Aster ericoides var. pringlei A.Gray = Symphyotrichum pilosum var. pringlei (A.Gray) G.L.Nesom
  • Aster erigeroides (DC.) Harv. = Felicia erigeroides DC.
  • Aster erubescens Sieber ex Spreng.= Olearia erubescens (Sieber ex Spreng.) Dippel
  • Aster erucifolius (Thell.) W. Lippert
    syn.: Felicia erucifolia Thell.
  • Aster eryngiifolius Torr. & A.Gray = Eurybia eryngiifolia (Torr. & A.Gray) G.L.Nesom
  • Aster eulae Shinners = Symphyotrichum eulae (Shinners) G.L.Nesom
  • Aster exilis Elliott = Symphyotrichum subulatum (Michx.) G.L.Nesom
  • Aster exscapus Richardson = Townsendia exscapa (Richardson) Porter
  • Aster falcatus Lindl. = Symphyotrichum falcatum var. falcatum
  • Aster falcatus var. commutatus (Torr. & A.Gray) A. G. Jones = Symphyotrichum falcatum var. commutatum (Torr. & A.Gray) G.L.Nesom
  • Aster falcifolius Hand.-Mazz.
  • Aster falconeri (C.B.Clarke) Hutch.
  • Aster falconeri subsp. falconeri
    syn.: Aster diplostephioides var. falconeri C.B.Clarke
  • Aster falconeri subsp. nepalensis Grierson
  • Aster fallax Tamamsch. = Aster alpinus var. fallax (Tamamsch.) Y.Ling
  • Aster fanjingshanicus Y. L. Chen & D. J. Liu
  • Aster farreri W. W. Sm. & Jeffrey
  • Aster fauriei H. Lév. & Vaniot = Aster spathulifolius Maxim.
  • Aster faxonii Porter = Symphyotrichum pilosum var. pringlei (A.Gray) G.L.Nesom
  • Aster fendleri A.Gray = Symphyotrichum fendleri (A.Gray) G.L.Nesom
  • Aster filifolius Vent. = Felicia filifolia (Vent.) Burtt Davy
  • Aster filipes J. Q. Fu
  • Aster firmus Nees = Symphyotrichum firmum (Nees) G.L.Nesom
  • Aster flaccidus Bunge
  • Aster flaccidus subsp. flaccidus
  • Aster flaccidus subsp. glandulosus (Keissl.) Onno
    syn.: Aster flaccidus var. glandulosus Keissl.
  • Aster flaccidus subsp. tsarungensis Grierson = Aster tsarungensis (Grierson) Y.Ling
  • Aster flaccidus var. flaccidus
    syn.: Aster heterochaeta Benth. ex C.B.Clarke
            Aster tibeticus Hook. f.
  •         Erigeron heterochaeta (Benth. ex C.B.Clarke) Botsch.
  • Aster flaccidus var. glandulosus Keissl. = Aster flaccidus subsp. glandulosus (Keissl.) Onno
  • Aster flaccidus var. griseo-barbatus Grierson
  • Aster flexilis E. S. Burgess = Eurybia divaricata (L.) G.L.Nesom
  • Aster foliaceus Lindl. = Symphyotrichum foliaceum var. foliaceum
  • Aster foliaceus var. apricus A.Gray = Symphyotrichum foliaceum var. apricum (A.Gray) G.L.Nesom
  • Aster foliaceus var. canbyi A.Gray = Symphyotrichum foliaceum var. canbyi (A.Gray) G.L.Nesom
  • Aster foliaceus var. crenifolius Fernald = Symphyotrichum crenifolium (Fernald) G.L.Nesom
  • Aster foliaceus var. cusickii (A.Gray) Cronquist = Symphyotrichum cusickii (A.Gray) G.L.Nesom
  • Aster foliaceus var. eatonii A.Gray = Symphyotrichum bracteolatum (Nutt.) G.L.Nesom
  • Aster foliaceus var. foliaceus = Symphyotrichum foliaceum var. foliaceum
  • Aster foliaceus var. lyallii (A.Gray) Cronquist = Symphyotrichum hendersonii (Fernald) G.L.Nesom
  • Aster foliaceus var. parryi (D.C.Eaton) A.Gray = Symphyotrichum foliaceum var. parryi (D.C.Eaton) G.L.Nesom
  • Aster foliaceus var. subgeminatus Fernald = Symphyotrichum subgeminatum (Fernald) G.L.Nesom
  • Aster fontinalis Alexander = Symphyotrichum fontinale (Alexander) G.L.Nesom
  • Aster formosanus Hayata
  • Aster fragilis auct. = Symphyotrichum racemosum (Elliott) G.L.Nesom
  • Aster xfrikartii Silva Tar. & C.K.Schneid.= Aster amellus x A. thomsonii
  • Aster frondosus (Nutt.) Torr. & A.Gray = Symphyotrichum frondosum (Nutt.) G.L.Nesom
  • Aster frutescens S. Watson (1836)
  • Aster fruticosus L. = Felicia fruticosa (L.) G.Nicholson
  • Aster fulgidulus Grierson
  • Aster furcatus E.S.Burgess (1898) = Eurybia furcata (E.S.Burgess) G.L.Nesom
  • Aster furfuraceus A.Rich. = Olearia furfuracea (A.Rich.) Hook.f.
  • Aster fuscescens Bureau & Franch.
  • Aster fuscescens var. fuscescens
  • Aster fuscescens var. oblongifolius Grierson
  • Aster fuscescens var. scaberoides C.C.Chang
  • Aster garibaldii Brügger = Aster alpinus var. alpinus
  • Aster gentryi Standl. = Psilactis gentryi (Standl.) D.R.Morgan
  • Aster georgianus Alexander = Symphyotrichum georgianum (Alexander) G.L.Nesom
  • Aster gerlachii Hance = Aster ageratoides var. gerlachii (Hance) C.C.Chang ex Y.Ling
  • Aster giraldii Diels
  • Aster glabrifolius (DC.) Reiche = Symphyotrichum glabrifolium (DC.) G.L.Nesom
  • Aster glaucescens (A.Gray) S. F. Blake = Eucephalus glaucescens (A.Gray) Greene
  • Aster glaucodes S. F. Blake = Eurybia glauca (Nutt.) G.L.Nesom
  • Aster glaucodes subsp. pulcher S. F. Blake = Eurybia pulchra (S. F. Blake) G.L.Nesom
  • Aster glaucus var. wasatchensis M.E.Jones = Eurybia wasatchensis (M.E.Jones) G.L.Nesom
  • Aster glehnii F. Schmidt
  • Aster gormanii (Piper) S. F. Blake = Eucephalus gormanii Piper
  • Aster gracilicaulis Y.Ling
  • Aster gracilis Nutt. (1818)= Eurybia compacta G.L.Nesom
  • Aster grandiflorus L. = Symphyotrichum grandiflorum (L.) G.L.Nesom
  • Aster greatae Parish = Symphyotrichum greatae (Parish) G.L.Nesom
  • Aster grisebachii Britton
  • Aster gymnocephalus (DC.) A.Gray
    syn.: Haplostachys gymnocephalus DC.
  • Aster gypsophilus B. L. Turner = Symphyotrichum gypsophilum (B. L. Turner) G.L.Nesom
  • Aster hallii A.Gray = Symphyotrichum hallii (A.Gray) G.L.Nesom
  • Aster handelii Onno
  • Aster harveyanus Kuntze
  • Aster hayatae H. Lév. & Vaniot
  • Aster haydenii Porter = Oreostemma alpigenum var. haydenii (Porter) G.L.Nesom
  • Aster heliopsis Grierson
  • Aster hemisphericus Alexander = Eurybia hemispherica (Alexander) G.L.Nesom
  • Aster hendersonii Fernald = Symphyotrichum hendersonii (Fernald) G.L.Nesom
  • Aster hersileoides C. K. Schneid.
  • Aster hesperius A.Gray = Symphyotrichum lanceolatum subsp. hesperium (A.Gray) G.L.Nesom
  • Aster heterochaeta Benth. ex C.B.Clarke = Aster flaccidus var. flaccidus
  • Aster heterolepis Hand.-Mazz.
  • Aster himalaicus C.B.Clarke
  • Aster hintonii G.L.Nesom = Symphyotrichum hintonii (G.L.Nesom) G.L.Nesom
  • Aster hirsuticaulis Lindl. = Symphyotrichum lateriflorum var. hirsuticaule (Lindl.) G.L.Nesom
  • Aster hispidus Thunb. = Heteropappus hispidus (Thunb.) Less. Aster hololachnus Y.Ling
  • Aster holophyllus Hemsl. = Kalimeris integrifolia Turcz. ex DC.
  • Aster holosericeus G. Forst. = Celmisia holosericea (G. Forst.) Hook. f.
  • Aster homochlamydeus Hand.-Mazz.
  • Aster horridus (Wooton & Standl.) S. F. Blake = Eurybia horrida (Wooton & Standl.) G.L.Nesom
  • Aster huegelii F. Muell. = Olearia ciliata (Benth.) F. Muell.
  • Aster hunanensis Hand.-Mazz.
  • Aster hybridus var. luteus hort. = xSolidaster luteus (Everett) M. L. Green ex Dress
  • Aster hypoleucus Hand.-Mazz.
  • Aster ibericus Steven = Aster amellus subsp. ibericus (Steven) V. E. Avet.
  • Aster iinumae Kitam. ex H. Hara
  • Aster incisus var. yomena Kitam. = Aster yomena (Kitam.) Honda
  • Aster indamellus Grierson
  • Aster infirmus Michx. = Doellingeria infirma (Michx.) Greene
  • Aster integrifolius Nutt. = Eurybia integrifolia (Nutt.) G.L.Nesom
  • Aster interior Wiegand = Symphyotrichum lanceolatum var. interior (Wiegand) G.L.Nesom
  • Aster intricatus (A.Gray) S. F. Blake
    syn.: Bigelowia intricata A.Gray
  • Aster ionoglossus Y.Ling
  • Aster itsunboshi Kitam.
  • Aster jeffreyanus Diels
  • Aster jessicae Piper = Symphyotrichum jessicae (Piper) G.L.Nesom
  • Aster jonesiae Lamboy = Eurybia jonesiae (Lamboy) G.L.Nesom
  • Aster juchaihu Z. Y. Zhu & B. Q. Min
  • Aster junciformis Rydb. = Symphyotrichum boreale (Torr. & A.Gray) Á. Löve & D. Löve
  • Aster kantoensis Kitam.
  • Aster komonoensis Makino = Doellingeria komonoensis (Makino) G.L.Nesom
  • Aster koraiensis Nakai
  • Aster korshinskyi Tamamsch. = Aster alpinus var. alpinus
  • Aster labrangensis Hand.-Mazz. = Aster yunnanensis var. labrangensis (Hand.-Mazz.) Y.Ling
  • Aster laevigatus (Sond.) Kuntze
    syn.: Diplopappus laevigatus Sond.
  • Aster laevis L. = Symphyotrichum laeve var. laeve
  • Aster laevis var. geyeri A.Gray = Symphyotrichum laeve var. geyeri (A.Gray) G.L.Nesom
  • Aster laevis var. laevis = Symphyotrichum laeve var. laeve
  • Aster laka C.B.Clarke
  • Aster lanceolatus Willd. = Symphyotrichum lanceolatum var. lanceolatum
  • Aster langaoensis J. Q. Fu
  • Aster lanuginosus (Small) Y.Ling
    syn.: Wardaster lanaginosus Small
  • Aster lasiocladus Hayata = Aster ageratoides var. lasiocladus (Hayata) Hand.-Mazz.
  • Aster lateriflorus (L.) Britton = Symphyotrichum lateriflorum var. lateriflorum
  • Aster lateriflorus var. flagellaris Shinners = Symphyotrichum lateriflorum var. flagellare (Shinners) G.L.Nesom
  • Aster lateriflorus var. hirsuticaulis (Lindl.) Porter = Symphyotrichum lateriflorum var. hirsuticaule (Lindl.) G.L.Nesom
  • Aster lateriflorus var. indutus Shinners = Symphyotrichum lateriflorum var. flagellare (Shinners) G.L.Nesom
  • Aster lateriflorus var. tenuipes Wiegand = Symphyotrichum lateriflorum var. tenuipes (Wiegand) G.L.Nesom
  • Aster latibracteatus Franch.
  • Aster laticorymbus Vaniot = Aster ageratoides var. laticorymbus (Vaniot) Hand.-Mazz.
  • Aster laurentianus Fernald = Symphyotrichum laurentianum (Fernald) G.L.Nesom
  • Aster lautureanus (Debeaux) Franch. = Boltonia lautureana Debeaux
  • Aster lavanduliifolius Hand.-Mazz.
  • Aster laxiflorus var. borealis Torr. & A.Gray = Symphyotrichum boreale (Torr. & A.Gray) Á. Löve & D. Löve
  • Aster ledophyllus (A.Gray) A.Gray = Eucephalus ledophyllus (A.Gray) Greene
  • Aster leiodes S. F. Blake = Machaeranthera canescens (Pursh) A.Gray
  • Aster leiophyllus Franch. & Sav. = Aster ageratoides var. leiophyllus (Franch. & Sav.) Y.Ling
  • Aster leiophyllus var. intermedius Soejima = Aster ageratoides var. intermedius (Soejima) Mot. Ito & Soejima
  • Aster lemmonii A.Gray = Symphyotrichum potosinum (A.Gray) G.L.Nesom
  • Aster lentus Greene = Symphyotrichum lentum (Greene) G.L.Nesom
  • Aster leonis Britton (1920)= Symphyotrichum leone (Britton) G.L.Nesom
  • Aster likiangensis Franch.
  • Aster limosus Hemsl.
  • Aster limprichtii Diels = Aster albescens var. limprichtii (Diels) Hand.-Mazz.
  • Aster linariifolius L. = Ionactis linariifolia (L.) Greene
  • Aster lindleyanus Torr. & A.Gray = Symphyotrichum ciliolatum (Lindl.) Á. Löve & D. Löve
  • Aster lingulatus Franch.
  • Aster linosyris (L.) Bernh.
    syn.: Chrysocoma linosyris L.
  • Aster lipskyi Kom.
  • Aster liratus Sims = Olearia lirata (Sims) Hutch.
  • Aster longifolius Lam. (1783) = Symphyotrichum longifolium (Lam.) G.L.Nesom
  • Aster longipetiolatus C. C. Chang = Doellingeria longipetiolata (C. C. Chang) G.L.Nesom
  • Aster lowrieanus Porter = Symphyotrichum lowrieanum (Porter) G.L.Nesom
  • Aster lucayanus Britton = Symphyotrichum lucayanum (Britton) G.L.Nesom
  • Aster lucidulus (A.Gray) Wiegand (1924) = Symphyotrichum firmum (Nees) G.L.Nesom
  • Aster luxurifolius Tamamsch. = Aster ageratoides var. ageratoides
  • Aster luzonensis Elmer
  • Aster lydenburgensis W. Lippert
  • Aster maackii Regel
  • Aster macrophyllus L. = Eurybia macrophylla (L.) Cass. ex Nees
  • Aster madagascariensis Humbert
  • Aster magnus Y. N. Lee & C. Kim
  • Aster mandrarensis Humbert
  • Aster mangshanensis Y.Ling
  • Aster marchandii H. Lév. = Doellingeria marchandii (H. Lév.) Y.Ling
  • Aster martii Baker = Symphyotrichum martii (Baker) G.L.Nesom
  • Aster megalanthus Y.Ling
  • Aster menelii H. Lév.
  • Aster meritus A. Nelson = Eurybia merita (A. Nelson) G.L.Nesom
  • Aster microcephalus (Miq.) Franch. & Sav.
  • Aster microcephalus var. microcephalus
    syn.: Aster ovatus var. microcephalus (Miq.) Mot. Ito & Soejima
            Calimeris microcephalus Miq.
  • Aster microcephalus var. ovatus (Franch. & Sav.) Soejima & Mot. Ito
    syn.: Aster ovatus (Franch. & Sav.) Mot. Ito & Soejima
  • Aster ovatus var. ovatus
  • Aster trinervius var. ovatus Franch. & Sav.
  • Aster microcephalus var. ripensis Makino
    syn.: Aster ovatus var. ripensis (Makino) Mot. Ito & Soejima
  • Aster microcephalus var. yezoensis (Kitam. & H. Hara) Soejima & Mot. Ito
    syn.: Aster ageratoides var. yezoensis Kitam. & H. Hara
  • Aster ovatus var. yezoensis (Kitam. & H. Hara) Mot. Ito & Soejima
  • Aster milanjiensis S. Moore
  • Aster minor Kuntze = Solidago parryi (A.Gray) Greene
  • Aster miquelianus H. Hara = Doellingeria japonica (Miq.) G.L.Nesom
  • Aster mirabilis Torr. & A.Gray = Eurybia mirabilis (Torr. & A.Gray) G.L.Nesom
  • Aster miyagii Koidz.
  • Aster modestus Lindl. = Canadanthus modestus (Lindl.) G.L.Nesom
  • Aster mohrii E. S. Burgess = Symphyotrichum undulatum (L.) G.L.Nesom
  • Aster mollis Rydb. = Symphyotrichum molle (Rydb.) G.L.Nesom
  • Aster molliusculus (Lindl.) C.B.Clarke
  • Aster molliusculus var. minor Grierson
  • Aster molliusculus var. molliusculus
    syn.: Diplopappus molliusculus Lindl.
  • Aster mongolicus Franch. = Kalimeris mongolica (Franch.) Kitam.
  • Aster moranensis Kunth (1820) = Symphyotrichum moranense (Kunth) G.L.Nesom
  • Aster morrisonensis Hayata
  • Aster motuoensis Y. L. Chen
  • Aster moupinsensis (Franch.) Hand.-Mazz.
    syn.: Erigeron moupinensis Franch.
  • Aster multiflorus Aiton (1789) = Symphyotrichum ericoides (L.) G.L.Nesom
  • Aster multiflorus var. commutatus Torr. & A.Gray = Symphyotrichum falcatum var. commutatum (Torr. & A.Gray) G.L.Nesom
  • Aster multiflorus var. pansus S. F. Blake = Symphyotrichum ericoides (L.) G.L.Nesom
  • Aster myrsinoides Labill. = Olearia myrsinoides (Labill.) F. Muell. ex Benth.
  • Aster nebraskensis Britton = Symphyotrichum praealtum var. praealtum
  • Aster nemoralis Aiton = Oclemena nemoralis (Aiton) Greene
  • Aster nemoralis var. blakei Porter = Oclemena xblakei (Porter) G.L.Nesom
  • Aster neoelegans Grierson
  • Aster neomexicanus Wooton & Standl. = Symphyotrichum subulatum var. ligulatum (Shinners) S. D. Sundb.
  • Aster nigromontanus Dunn
  • Aster nitidus C. C. Chang
  • Aster novae-angliae L. = Symphyotrichum novae-angliae (L.) G.L.Nesom
  • Aster novi-belgii L. = Symphyotrichum novi-belgii (L.) G.L.Nesom
  • Aster nubimontis W. Lippert
  • Aster oblongifolius Nutt. = Symphyotrichum oblongifolium (Nutt.) G.L.Nesom
  • Aster occidentalis (Nutt.) Torr. & A.Gray = Symphyotrichum spathulatum var. spathulatum
  • Aster occidentalis var. intermedius A.Gray = Symphyotrichum spathulatum var. intermedium (A.Gray) G.L.Nesom
  • Aster oleifolius (Lam.) Wagenitz
    syn.: Conyza oleifolia Lam.
  • Aster ontarionis Wiegand = Symphyotrichum ontarione (Wiegand) G.L.Nesom
  • Aster oolentangiensis Riddell = Symphyotrichum oolentangiense (Riddell) G.L.Nesom
  • Aster oregonensis (Nutt.) Cronquist = Sericocarpus oregonensis Nutt.
  • Aster oreophilus Franch.
  • Aster ovalifolius Kitam.
  • Aster ovatus (Franch. & Sav.) Mot. Ito & Soejima = Aster microcephalus var. ovatus (Franch. & Sav.) Soejima & Mot. Ito
  • Aster ovatus var. microcephalus (Miq.) Mot. Ito & Soejima = Aster microcephalus var. microcephalus
  • Aster ovatus var. ovatus = Aster microcephalus var. ovatus (Franch. & Sav.) Soejima & Mot. Ito
  • Aster ovatus var. ripensis (Makino) Mot. Ito & Soejima = Aster microcephalus var. ripensis Makino
  • Aster ovatus var. yezoensis (Kitam. & H. Hara) Mot. Ito & Soejima= Aster microcephalus var. yezoensis (Kitam. & H. Hara) Soejima & Mot. Ito
  • Aster palmeri A.Gray = Neonesomia palmeri (A.Gray) Urbatsch & R. P. Roberts
  • Aster paludosus Aiton = Eurybia paludosa (Aiton) G.L.Nesom
  • Aster paludosus subsp. hemisphericus (Alexander) Cronquist = Eurybia hemispherica (Alexander) G.L.Nesom
  • Aster paludosus subsp. paludosus = Eurybia paludosa (Aiton) G.L.Nesom
  • Aster panduratus Nees ex Walp.
  • Aster paniculatus Lam. = Symphyotrichum lanceolatum var. lanceolatum
  • Aster pannonicus Jacq. = Aster tripolium subsp. pannonicus (Jacq.) Soó
  • Aster pansus (S. F. Blake) Cronquist = Symphyotrichum ericoides (L.) G.L.Nesom
  • Aster parryi A.Gray = Xylorhiza glabriuscula Nutt.
  • Aster parviceps (E. S. Burgess) Mack. & Bush = Symphyotrichum parviceps (E. S. Burgess) G.L.Nesom
  • Aster patagonicus Cabrera = Symphyotrichum patagonicum (Cabrera) G.L.Nesom
  • Aster patens Aiton (1789)= Symphyotrichum patens var. patens
  • Aster patens var. georgianus (Alexander) Cronquist = Symphyotrichum georgianum (Alexander) G.L.Nesom
  • Aster patens var. gracilis Hook. = Symphyotrichum patens var. gracile (Hook.) G.L.Nesom
  • Aster patens var. patens = Symphyotrichum patens var. patens
  • Aster patens var. patentissimus (Lindl.) Torr. & A.Gray = Symphyotrichum patens var. patentissimum (Lindl.) G.L.Nesom
  • Aster patens var. phlogifolius (Muhl. ex Willd.) Nees = Symphyotrichum phlogifolium (Muhl. ex Willd.) G.L.Nesom
  • Aster patentissimus Lindl. = Symphyotrichum patens var. patentissimum (Lindl.) G.L.Nesom
  • Aster paternus Cronquist = Sericocarpus asteroides (L.) Britton et al.
  • Aster patulus Lam.
  • Aster paucicapitatus (B. L. Rob.) B. L. Rob. = Eucephalus paucicapitatus (B. L. Rob.) Greene
  • Aster paucidentatus F. Muell. = Olearia paucidentata (F. Muell.) F. Muell.
  • Aster pauciflorus Nutt. = Almutaster pauciflorus (Nutt.) Á. Löve & D. Löve
  • Aster peduncularis Wall. ex Nees
  • Aster peglerae Bolus
  • Aster peirsonii Sharsm. = Oreostemma peirsonii (Sharsm.) G.L.Nesom
  • Aster pensauensis Tamamsch. = Aster ageratoides var. ageratoides
  • Aster peregrinus Pursh = Erigeron peregrinus (Pursh) Greene
  • Aster perelegans A. Nelson & J. F. Macbr. = Eucephalus elegans Nutt.
  • Aster perfoliatus Oliv.
  • Aster peteroanus Phil. = Symphyotrichum peteroanum (Phil.) G.L.Nesom
  • Aster philippinensis S. Moore
  • Aster phlogifolius Muhl. ex Willd. = Symphyotrichum phlogifolium (Muhl. ex Willd.) G.L.Nesom
  • Aster phlogopappus Labill. = Olearia phlogopappa var. phlogopappa
  • Aster phyllolepis Torr. & A.Gray = Symphyotrichum pratense (Raf.) G.L.Nesom
  • Aster pilosus Willd. = Symphyotrichum pilosum var. pilosum
  • Aster pilosus var. demotus S. F. Blake = Symphyotrichum pilosum var. pringlei (A.Gray) G.L.Nesom
  • Aster pilosus var. pilosus = Symphyotrichum pilosum var. pilosum
  • Aster pilosus var. platyphyllus (Torr. & A.Gray) S. F. Blake = Symphyotrichum pilosum var. pilosum
  • Aster pilosus var. priceae (Britton) Cronquist = Symphyotrichum priceae (Britton) G.L.Nesom
  • Aster pilosus var. pringlei (A.Gray) S. F. Blake = Symphyotrichum pilosum var. pringlei (A.Gray) G.L.Nesom
  • Aster platylepis Y. L. Chen
    syn.: Doronicum latisquamatum C. E. C. Fisch.
  • Aster pleiocephalus (Harv.) Hutch.
    syn.: Diplopappus asper var. pleiocephalus Harv.
  • Aster poliothamnus Diels
  • Aster polius C. K. Schneid.
  • Aster porteri A.Gray = Symphyotrichum porteri (A.Gray) G.L.Nesom
  • Aster potosinus A.Gray = Symphyotrichum potosinum (A.Gray) G.L.Nesom
  • Aster praealtus Poir. = Symphyotrichum praealtum var. praealtum
  • Aster praealtus var. angustior Wiegand = Symphyotrichum praealtum var. angustior (Wiegand) G.L.Nesom
  • Aster praealtus var. coerulescens (DC.) A.G.Jones = Symphyotrichum praealtum var. praealtum
  • Aster praealtus var. nebraskensis (Britton) Wiegand = Symphyotrichum praealtum var. praealtum
  • Aster praealtus var. praealtus = Symphyotrichum praealtum var. praealtum
  • Aster prainii (J. R. Drumm.) Y. L. Chen
    syn.: Chlamydites prainii J. R. Drumm.
  • Aster pratensis Raf. = Symphyotrichum pratense (Raf.) G.L.Nesom
  • Aster prenanthoides Muhl. ex Willd. = Symphyotrichum prenanthoides (Muhl. ex Willd.) G.L.Nesom
  • Aster priceae Britton = Symphyotrichum priceae (Britton) G.L.Nesom
  • Aster pringlei (A.Gray) Britton = Symphyotrichum pilosum var. pringlei (A.Gray) G.L.Nesom
  • Aster prorerus Hemsl.
  • Aster pseudobakerianus W. Lippert
  • Aster ptarmicoides Torr. & A.Gray = Solidago ptarmicoides (Torr. & A.Gray) B.Boivin
  • Aster pubentior Cronquist
  • Aster punctatus Waldst. & Kit.
    syn.: Galatella punctata (Waldst. & Kit.) Nees
  • Aster puniceus L. (1753) Symphyotrichum puniceum var. puniceum
  • Aster puniceus var. calderi (B. Boivin) Lepage = Symphyotrichum puniceum var. calderi (B. Boivin) G.L.Nesom
  • Aster puniceus var. demissus Lindl. = Symphyotrichum puniceum var. puniceum
  • Aster puniceus var. elliottii (Torr. & A.Gray) A.G.Jones = Symphyotrichum elliottii (Torr. & A.Gray) G.L.Nesom
  • Aster puniceus var. firmus (Nees) Torr. & A.Gray = Symphyotrichum firmum (Nees) G.L.Nesom
  • Aster puniceus var. lucidulus A.Gray = Symphyotrichum firmum (Nees) G.L.Nesom
  • Aster puniceus var. puniceus = Symphyotrichum puniceum var. puniceum
  • Aster puniceus var. scabricaulis (Shinners) A.G.Jones = Symphyotrichum puniceum var. scabricaule (Shinners) G.L.Nesom
  • Aster pycnophyllus W. W. Sm.
  • Aster pygmaeus Lindl. = Eurybia pygmaea (Lindl.) G.L.Nesom
  • Aster pyrenaeus Desf. ex DC.
  • Aster quitensis Willd. ex Spreng.
  • Aster racemosus Elliott = Symphyotrichum racemosum (Elliott) G.L.Nesom
  • Aster radula Aiton = Eurybia radula (Aiton) G.L.Nesom
  • Aster radulinus A.Gray = Eurybia radulinus (A.Gray) G.L.Nesom
  • Aster ramulosus Labill. = Olearia ramulosa (Labill.) Benth.
  • Aster regnellii Baker = Symphyotrichum regnellii (Baker) G.L.Nesom
  • Aster reticulatus Pursh = Oclemena reticulata (Pursh) G.L.Nesom
  • Aster retroflexus Lindl. = Symphyotrichum retroflexum (Lindl.) G.L.Nesom
  • Aster retusus Ludlow
  • Aster richardsonii Spreng. (1826)= Eurybia sibirica (L.) G.L.Nesom
  • Aster riparius Kunth
  • Aster rockianus Hand.-Mazz.
  • Aster rotundifolius Thunb. = Felicia amelloides (L.) Voss
  • Aster rugosus Kuntze (1891)
  • Aster rugulosus Maxim. = Doellingeria rugulosa (Maxim.) G.L.Nesom
  • Aster saboureaui Humbert
  • Aster sagittifolius Wedem. ex Willd. = Symphyotrichum sagittifolium (Wedem. ex Willd.) G.L.Nesom
  • Aster xsalignus Willd. = Symphyotrichum xsalignum (Willd.) G.L.Nesom
  • = A. lanceolatus x A. novi-belgii
  • Aster salwinensis Onno
  • Aster sampsonii (Hance) Hemsl.
  • Aster sampsonii var. isochaetus C. C. Chang
  • Aster sampsonii var. sampsonii
    syn.: Heteropappus sampsonii Hance
  • Aster satsumensis Soejima
  • Aster savatieri Makino
  • Aster saxicastellii J.J.N.Campb. & Medley = Eurybia saxicastellii (J.J.N.Campb. & Medley) G.L.Nesom
  • Aster scaber Thunb. = Doellingeria scabra (Thunb.) Nees
  • Aster scabricaulis Shinners = Symphyotrichum puniceum var. scabricaule (Shinners) G.L.Nesom
  • Aster schaffneri Sch.Bip. ex S. D. Sundb. & A.G.Jones
  • = Symphyotrichum schaffneri (Sch.Bip. ex S. D. Sundb. & A.G.Jones) G.L.Nesom
  • Aster schreberi Nees
  • = Eurybia schreberi (Nees) Nees
  • Aster scopulorum A.Gray
  • = Ionactis alpina (Nutt.) Greene
  • Aster sedifolius L.
  • Aster sedifolius subsp. angustissimus (Tausch) Merxm.
    syn.: Aster angustissimus Tausch
  • Aster sedifolius subsp. canus (Waldst. & Kit.) Merxm.
    syn.: Aster canus Waldst. & Kit.
  • Aster sedifolius subsp. dracunculoides (Lam.) Merxm.
    syn.: Aster dracunculoides Lam.
  • Aster sedifolius subsp. illyricus (Murb.) Merxm.
    syn.: Galatella rigida subsp. illyrica Murb.
  • Aster sedifolius subsp. sedifolius
    syn.: Aster acris L.
  • Aster sedifolius subsp. trinervis (Pers.) Thell.
    syn.: Aster acris var. trinervis Pers.
  • Aster see-burejensis Tamamsch. = Aster ageratoides var. ageratoides
  • Aster semiamplexicaulis Makino ex Koidz.
  • Aster senecioides Franch.
  • Aster senecioides var. latisquamus Y.Ling
  • Aster senecioides var. senecioides
  • Aster sericeus Vent.= Symphyotrichum sericeum (Vent.) G.L.Nesom
  • Aster sericeus var. microphyllus DC.= Symphyotrichum pratense (Raf.) G.L.Nesom
  • Aster sericocarpoides (Small) K. Schum. = Doellingeria sericocarpoides Small
  • Aster serpentimontanus Tamamsch. = Aster alpinus var. serpentimontanus (Tamamsch.) Y.Ling
  • Aster shastensis (A.Gray) A.Gray
    syn.: Machaeranthera shastensis A.Gray
  • Aster shortii Lindl. = Symphyotrichum shortii (Lindl.) G.L.Nesom
  • Aster sibiricus L. (1753) = Eurybia sibirica (L.) G.L.Nesom
  • Aster sibiricus var. subintegerrima Trautv. = Eurybia sibirica (L.) G.L.Nesom
  • Aster sikkimensis Hook.
  • Aster sikuensis W. W. Sm. & Farrer
  • Aster simmondsii Small = Symphyotrichum simmondsii (Small) G.L.Nesom
  • Aster simplex Willd. (1809) = Symphyotrichum lanceolatum var. lanceolatum
  • Aster simplex var. interior (Wiegand) Cronquist = Symphyotrichum lanceolatum var. interior (Wiegand) G.L.Nesom
  • Aster simplex var. ramosissimus (Torr. & A.Gray) Cronquist = Symphyotrichum lanceolatum var. lanceolatum
  • Aster simplex var. simplex = Symphyotrichum lanceolatum var. lanceolatum
  • Aster sinianus Hand.-Mazz.
  • Aster smithianus Hand.-Mazz.
  • Aster sodiroi Hieron.
  • Aster sohayakiensis Koidz. = Doellingeria sohayakiensis (Koidz.) G.L.Nesom
  • Aster solidagineus Michx. = Sericocarpus linifolius (L.) Britton et al.
  • Aster souliei Franch.
  • Aster spathulatus Lindl. = Symphyotrichum spathulatum var. spathulatum
  • Aster spathulatus var. intermedius (A.Gray) Cronquist = Symphyotrichum spathulatum var. intermedium (A.Gray) G.L.Nesom
  • Aster spathulatus var. spathulatus = Symphyotrichum spathulatum var. spathulatum
  • Aster spathulifolius Maxim.
    syn.: Aster fauriei H. Lév. & Vaniot
  • Aster spectabilis Aiton = Eurybia spectabilis (Aiton) G.L.Nesom
  • Aster sphaerotus Y.Ling
  • Aster spinosus Benth. = Chloracantha spinosa (Benth.) G.L.Nesom
  • Aster spinulosus Chapm. = Eurybia spinulosa (Chapm.) G.L.Nesom
  • Aster squamatus (Spreng.) Hieron. (1900)= Symphyotrichum subulatum var. squamatum (Spreng.) S.D.Sundb.
  • Aster squamatus var. graminifolius (Spreng.) Hieron. (1900) = Symphyotrichum graminifolium (Spreng.) G.L.Nesom
  • Aster staticifolius Franch. = Aster batangensis var. staticifolius (Franch.) Y.Ling
  • Aster steeleorum Shinners
  • Aster stenomeres A.Gray = Ionactis stenomeres (A.Gray) Greene
  • Aster stracheyi Hook. f.
  • Aster stuartii F. Muell. = Olearia stuartii (F. Muell.) F. Muell.
  • Aster subcoeruleus S. Moore = Aster tongolensis Franch.
  • Aster subintegerrimus (Trautv.) Ostenf. & Resvoll = Eurybia sibirica (L.) G.L.Nesom
  • Aster subspicatus Nees = Symphyotrichum subspicatum (Nees) G.L.Nesom
  • Aster subulatus Michx. (1803)= Symphyotrichum subulatum var. subulatum
  • Aster subulatus var. cubensis (DC.) Shinners = Symphyotrichum subulatum var. parviflorum (Nees) S.D.Sundb.
  • Aster subulatus var. elongatus Bosserdet ex A. G. Jones & Lowry = Symphyotrichum subulatum var. elongatum (Bosserdet ex A. G. Jones & Lowry) S. D. Sundb.
  • Aster subulatus var. ligulatus Shinners = Symphyotrichum subulatum var. ligulatum (Shinners) S.D.Sundb.
  • Aster sugimotoi Kitam.
  • Aster suputinicus Tamamsch. = Aster ageratoides var. ageratoides
  • Aster surculosus Michx. (1803) = Eurybia surculosa (Michx.) G.L.Nesom
  • Aster sutchuenensis Franch.
  • Aster sutschanensis Kom. = Aster ageratoides var. ageratoides
  • Aster tagasagomontanus Sasaki
  • Aster taiwanensis Kitam.
  • Aster taliangshanensis Y.Ling
  • Aster tanacetifolius Kunth = Machaeranthera tanacetifolia (Kunth) Nees
  • Aster tansaniensis W.Lippert
  • Aster tarbagatensis (K.Koch) Merxm.
    syn.: Linosyris tarbagatensis K.Koch
  • Aster tataricus L.f.
  • Aster techinensis Y.Ling
  • Aster tenuifolius L. = Symphyotrichum tenuifolium (L.) G.L.Nesom
  • Aster tenuipes Makino
  • Aster texanus E.S.Burgess = Symphyotrichum drummondii (Lindl.) G.L.Nesom
  • Aster thomsonii C.B.Clarke
  • Aster tibeticus Hook.f. = Aster flaccidus var. flaccidus
  • Aster tientschuanensis Hand.-Mazz.
  • Aster tolmatschevii Tamamsch.
  • Aster tongolensis Franch.
    syn.: Aster subcoeruleus S. Moore
  • Aster tortifolius Michx. = Sericocarpus tortifolius (Michx.) Nees
  • Aster tradescantii L. = Symphyotrichum tradescantii (L.) G.L.Nesom
  • Aster tricephalus C.B.Clarke
  • Aster trichoneurus Y.Ling
  • Aster trilineatus Sch.Bip. ex Klatt = Symphyotrichum trilineatum (Sch.Bip. ex Klatt) G.L.Nesom
  • Aster trinervius Roxb. ex D. Don
  • Aster trinervius subsp. ageratoides (Turcz.) Grierson = Aster ageratoides var. ageratoides
  • Aster trinervius var. firmus Diels = Aster ageratoides var. firmus (Diels) Hand.-Mazz.
  • Aster trinervius var. ovatus Franch. & Sav. = Aster microcephalus var. ovatus (Franch. & Sav.) Soejima & Mot. Ito
  • Aster trinervius var. trinervius
  • Aster trinervius var. viscidulus Makino = Aster viscidulus (Makino) Makino
  • Aster trinervius var. wattii (C.B.Clarke) Grierson
    syn.: Aster wattii C.B.Clarke
  • Aster tripolium L.
  • Aster tripolium subsp. pannonicus (Jacq.) Soó
    syn.: Aster pannonicus Jacq.
  • Aster tripolium subsp. tripolium
  • Aster tsarungensis (Grierson) Y.Ling
    syn.: Aster flaccidus subsp. tsarungensis Grierson
  • Aster turbinatus S. Moore
  • Aster turbinatus var. chekiangensis Y.Ling
  • Aster turbinatus var. turbinatus
  • Aster turbinellus Lindl. (1835) = Symphyotrichum turbinellum (Lindl.) G.L.Nesom
  • Aster uliginosus J. M. Wood & M. S. Evans = Felicia uliginosa (J. M. Wood & M. S. Evans) Grau
  • Aster umbellatus Mill. (1768) = Doellingeria umbellata (Mill.) Nees
  • Aster undulatus L. (1753)= Symphyotrichum undulatum (L.) G.L.Nesom
  • Aster urophyllus Lindl. = Symphyotrichum urophyllum (Lindl.) G.L.Nesom
  • Aster vahlii (Gaudich.) Hook. & Arn. = Symphyotrichum vahlii var. vahlii
  • Aster vahlii var. tenuifolius (Phil.) Cabrera = Symphyotrichum vahlii var. tenuifolium (Phil.) G.L.Nesom
  • Aster vahlii var. vahlii = Symphyotrichum vahlii var. vahlii
  • Aster veitchianus Hutch. & J. R. Drumm. ex Y.Ling
  • Aster velutinosus Y.Ling
  • Aster xversicolor Willd. = Symphyotrichum xversicolor (Willd.) G.L.Nesom = A. laevis A. novi-belgii
  • Aster vestitus Franch.
  • Aster vialis (M. E. Bradshaw) S. F. Blake = Eucephalus vialis M.E.Bradshaw
  • Aster vimineus auct. = Symphyotrichum racemosum (Elliott) G.L.Nesom
  • Aster vimineus Lam. = Symphyotrichum lateriflorum var. lateriflorum
  • Aster viscidulus (Makino) Makino
    syn.: Aster trinervius var. viscidulus Makino
  • Aster viscosus Labill. = Olearia viscosa (Labill.) Benth.
  • Aster vvedenskyi Bondarenko
  • Aster walteri Alexander = Symphyotrichum walteri (Alexander) G.L.Nesom
  • Aster wasatchensis (M.E.Jones) S.F.Blake (1925)= Eurybia wasatchensis (M.E.Jones) G.L.Nesom
  • Aster wattii C.B.Clarke = Aster trinervius var. wattii (C.B.Clarke) Grierson
  • Aster welshii Cronquist = Symphyotrichum welshii (Cronquist) G.L.Nesom
  • Aster willkommii Sch.Bip.
  • Aster woroschilowii Zdor. & Schapoval
  • Aster yakushimensis (Kitam.) Soejima & Yahara
    syn.: Aster ageratoides subsp. yakushimensis Kitam.
  • Aster yomena (Kitam.) Honda
    syn.: Aster incisus var. yomena Kitam.
  • Aster yoshinaganus (Kitam.) Mot.Ito & Soejima
    syn.: Aster ageratoides subsp. yoshinaganus Kitam.
  • Aster yukonensis Cronquist = Symphyotrichum yukonense (Cronquist) G.L.Nesom
  • Aster yunnanensis Franch.
  • Aster yunnanensis var. angnstior Hand.-Mazz.
  • Aster yunnanensis var. labrangensis (Hand.-Mazz.) Y.Ling
    syn.: Aster labrangensis Hand.-Mazz.
  • Aster yunnanensis var. yunnanensis
  • Aster zayuensis Y.L.Chen
  • Aster zuluensis W.Lippert

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