The genus Aster (sunflower family - Asteraceae) is now generally restricted to the Old World species. The other species have now been reclassified as Afroaster, Almutaster, Canadanthus, Doellingeria, Eucephalus, Eurybia, Ionactis, Oligoneuron, Oreostemma, Sericocarpus and Symphyotrichum.
Aster synonyms Aster abatus : Xylorhiza tortifolia Aster alpigenus ssp. alpigenus : Oreostemma alpigenum var. alpigenum Aster alpigenus ssp. andersonii : Oreostemma alpigenum var. andersonii Aster ananthocladus : Afroaster ananthocladus Aster adscendens : Symphyotrichum ascendens Aster bakerianus : Afroaster hispidus Aster bowiei : Afroaster bowiei Aster brachyactis : Symphyotrichum ciliatum Aster breweri : Eucephalus breweri Aster brickellioides var. brickellioides : Eucephalus brickellioides Aster brickellioides var. glabratus : Eucephalus glabratus Aster caerulescens : Symphyotrichum praealtum var. praealtum Aster campestris var. bloomeri : Symphyotrichum campestre var. bloomeri Aster campestris var. campestris : Symphyotrichum campestre var. campestre Aster chilensis var. chilensis : Symphyotrichum chilense var. chilense Aster chilensis var. invenustum : Symphyotrichum chilense var. invenustum Aster chimanimaniensis : Afroaster chimanimaniensis Aster ciliolatus : Symphyotrichum ciliolatum Aster comptonii : Afroaster comptonii Aster confertifolius : Afroaster confertifolius Aster cordifolius : Symphyotrichum cordifolium Aster dumosus L.: Symphyotrichum dumosum (L.) G. L. Nesom Aster eatonii : Symphyotrichum eatonii Aster elatus : Oreostemma elatum Aster engelmannii : Eucephalus engelmannii Aster ericoides : Symphyotrichum ericoides Aster erucifolius : Afroaster erucifolius Aster exilis : Symphyotrichum divaricatum Aster falcatus var. crassulus : Symphyotrichum falcatum var. crassulum Aster falcatus var. falcatus : Symphyotrichum falcatum var. falcatum Aster foliaceus var. apricus : Symphyotrichum foliaceum var. apricum Aster foliaceus var. foliaceus : Symphyotrichum foliaceum var. foliaceum Aster foliaceus var. lyallii : Symphyotrichum hendersonii Aster foliaceus var. parryi : Symphyotrichum foliaceum var. parryi Aster frondosus : Symphyotrichum frondosum Aster glaucodes : Eurybia glauca Aster greatae : Symphyotrichum greatae Aster harveyanus : Afroaster serrulatus Aster integrifolius : Eurybia integrifolia Aster intricatus : Machaerantha carnosa var. intricata Aster laevis var. geyeri : Symphyotrichum laeve var. geyeri Aster laevis var. laevis : Symphyotrichum laeve var. laeve Aster lateriflorus var. lateriflorus : Symphyotrichum lateriflorum var. lateriflorum Aster lateriflorus var. pendulus : Symphyotrichum lateriflorum var. horizontale Aster ledophyllus : Eucephalus ledophyllus var. ledophyllus Aster linariifolius : Ionactis linariifolius Aster lydenburgensis : Afroaster lydenburgensis Aster milanjiensis : Afroaster milanjiensis Aster modestus : Canadanthus modestus Aster novae-angliae : Symphyotrichum novae-angliae Aster nubimontis : Afroaster nubimontis Aster occidentalis var. intermedius : Symphyotrichum spathulatum var. intermedium Aster occidentalis var. occidentalis : Symphytorichum spathulatum var. spathulatum Aster oolentangiensis : Symphyotrichum oolentangiense var. oolentangiense Aster oregonensis ssp. californicus : Sericocarpus oregonensis var. californicus Aster oregonensis ssp. oregonensis : Sericocarpus oregonensis var. oregonensis Aster paludicola : Symphyotrichum spathulatum var. yosemitanum Aster paludosus : Eurybia paludosa Aster paniculatus : Symphyotrichum lanceolatum ssp. lanceolatum Aster pansus : Symphyotrichum ericoides var. pansum Aster patens : Symphyotrichum patens var. patens Aster pauciflorus : Almutaster pauciflorus Aster peglerae : Afroaster peglerae Aster perelegans : Eucephalus elegans Aster perfoliatus : Afroaster perfoliatus Aster pilosus : Symphyotrichum pilosum Aster pleiocephalus : Afroaster pleiocephalus Aster porteri : Symphyotrichum porteri Aster praealtus : Symphyotrichum praealtum var. praealtum Aster pseudobakerianus : Afroaster pseudobakerianus Aster ptarmicoides : Oligoneuron album Aster puniceus : Symphyotrichum puniceum Aster radulinus : Eurybia radulina Aster sagittifolius : Symphyotrichum cordifolium Aster scaber : Doellingeria scaber Aster scopulorum : Ionactis alpina Aster sericeus : Symphyotrichum sericeum Aster sibiricus : Eurybia sibirica Aster simplex : Symphyotrichum lanceolatum ssp. lanceolatum Aster siskiyouensis : Eucephalus glabratus Aster subspicatus var. grayi : Symphyotrichum subspicatum var. grayi Aster subspicatus var. subspicatus : Symphyotrichum subspicatum var. subspicatum Aster tansaniensis : Afroaster tansaniensis Aster umbellatus : Doellingeria umbellata var. umbellata Aster yukonensis : Symphyotrichum yukonense Aster zuluensis : Afroaster zuluensis
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