List_of_Symphyotrichum_species

NatureServe conservation categories
NatureServe conservation categories
Conservation status
GX	Presumed Extinct (0 species)
GH	Possibly Extinct (0 species)
G1	Critically Imperiled (3 species)
G2	Imperiled (9 species)
G3	Vulnerable (7 species)
G4	Apparently Secure (21 species)
G5	Secure (37 species)
Other categories
GNA	Not Applicable (8 species)
GNR	Not Ranked (0 species)
NL	Not listed (25 species)

Symphyotrichum genus
	Some Symphyotrichum species left–right, top–bottom are shown: S. carnerosanum, S. chilense, S. adnatum, S. lateriflorum, S. concolor, S. ericoides, S. defoliatum, S. ciliatum, S. novae-angliae.
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Asterales
Family:	Asteraceae
Subfamily:	Asteroideae
Tribe:	Astereae
Subtribe:	Symphyotrichinae
Genus:	Symphyotrichum; Nees

List of <i>Symphyotrichum</i> species

List of Symphyotrichum species

List of flowering plant species in the family Asteraceae

Symphyotrichum is a genus of flowering plants in the tribe Astereae which includes the commonly cultivated New York aster (S. novi-belgii) and New England aster (S. novae-angliae). Its species are widespread in the Americas, including as far north as subarctic North America to as far south as Chile, Argentina, and the Falkland Islands. One species has a native range extending into eastern Eurasia.

Quick Facts Symphyotrichum genus, Scientific classification ...

Most of the species in the genus are perennials. The flower heads have white, pink, purple, or blue ray florets surrounding white to yellow disk florets. The disk floret corollas become pink, purple, or brown after pollination. The three species in section Conyzopsis have reduced or absent ray florets.

Symphyotrichum is the type genus of subtribe Symphyotrichinae. There are 98 species in the genus, some with varieties, and thirteen named hybrids. The genus is split into five subgenera: Chapmaniana, Astropolium, Virgulus, Ascendentes, and Symphyotrichum. Most of the species had been classified within the genus Aster until it was confirmed to be polyphyletic. The American asters now are separated into monophyletic genera based on multiple phylogenetic studies.

Species list

Subgenus Astropolium

More information Scientific name and picture, Author citation ...

Subgenus *Astropolium* (Nutt.) Semple^[8] – twelve species
Scientific name and picture	Author citation ^[17]	Basionym ^[18]	Year ^[18]	Common name(s) and varieties	NS ^[20]	Habitat	Distribution ^[17]
S. divaricatum	(Nutt.) G.L.Nesom	Tripolium divaricatum	1840	Southern annual saltmarsh aster^[22]	G5	Marshy habitats, roadsides, lawns, and waste places 0–1,500 m (0–4,921 ft)^[19]	^[23]^[22]
S. glabrifolium	(DC.) G.L.Nesom	Erigeron glabrifolius	1836		NL	Wet meadows and stream edges 1,500–2,400 m (4,920–7,870 ft)^[24]	^[24]
S. graminifolium	(Spreng.) G.L.Nesom	Conyza graminifolia	1826		NL	Humid places^[25]
S. martii	(Baker) G.L.Nesom	Aster martii	1882		NL	Cerrado savanna, grasslands^[26]	^[26]
S. parviflorum	(Nees) G.L.Nesom	Aster parviflorus	1818	Southwestern annual saltmarsh aster^[27]	NL	Marshy habitats and roadsides 0–1,100 m (0–3,609 ft)^[28]	^[29]
S. patagonicum	(Cabrera) G.L.Nesom	Aster patagonicus	1971		NL	Mallines and lagoon edges 500–2,500 m (1,640–8,200 ft)^[30]	^[30]
S. peteroanum	(Phil.) G.L.Nesom	Aster peteroanus	1894		NL	Humid montane ecosystems 1,000–2,200 m (3,280–7,220 ft)^[31]	^[31]
S. potosinum	(A.Gray) G.L.Nesom	Aster potosinus	1880	Santa Rita Mountain aster^[19]	G2	Muddy and wet soils on stream banks 1,500–1,900 m (4,920–6,230 ft)^[19]	^[20]^[32]
S. regnellii	(Baker) G.L.Nesom	Aster regnellii	1882		NL	Swamps or damp savanna soils^[33]	^[33]^[17]
S. subulatum	(Michx.) G.L.Nesom	Aster subulatus	1803	Annual saltmarsh aster Eastern annual saltmarsh aster^[19] Three varieties^[34] S. s. var. subulatum S. s. var. elongatum (Bahaman aster) S. s. var. squamatum (southeastern annual saltmarsh aster)	G5	Brackish marshes, salt marshes, roadsides 0–4,000 m (0–13,120 ft)^[34]
S. tenuifolium	(L.) G.L.Nesom	Aster tenuifolius	1753	Perennial saltmarsh aster^[19] Two varieties^[35] S. t. var. tenuifolium S. t. var. aphyllum (Brace’s aster)	G5	Coastal salt marshes, brackish marshes, low pine woods 0–10 m (0–30 ft)^[35]
S. vahlii	(Gaudich.) G.L.Nesom	Erigeron vahlii	1825	Margarita Marsh daisy^[36] Two varieties^[17] S. v. var. vahlii S. v. var. tenuifolium	NL	Grassland, heathland, peaty soil, sandy soil 20–1,200 m (70–3,940 ft)^[37]

Subgenus Virgulus

Subgenus Virgulus (Raf.) G.L.Nesom^[10]

Section Grandiflori

Section Grandiflori (Torr. & A.Gray) G.L.Nesom^[7]

Subgenus Symphyotrichum

Section Occidentales

More information Scientific name and picture, Author citation ...

Section *Occidentales* (Rydb.) G.L.Nesom^[14] – eleven species
Scientific name and picture	Author citation ^[17]	Basionym ^[18]	Year ^[18]	Common name(s) and varieties ^[19]	NS ^[20]	Habitat ^[19]	Distribution ^[17]
S. chilense	(Nees) G.L.Nesom	Aster chilensis	1832	Pacific aster Common California aster	G5	Coastal salt marshes, dunes and banks, grasslands, coniferous forests 0–500 m (0–1,640 ft)	^[19]^[66]
S. eatonii	(A.Gray) G.L.Nesom	Aster foliaceus var. eatonii	1884	Eaton's aster	G5	Sunny wetlands 500–3,100 m (1,640–10,170 ft)
S. foliaceum	(Lindl. ex DC.) G.L.Nesom	Aster foliaceus	1836	Alpine leafybract aster Leafy aster Leafy-bracted aster Five varieties^[17] S. f. var. foliaceum S. f. var. apricum S. f. var. canbyi S. f. var. cusickii (Cusick's aster)^{[lower-alpha 4]}^[67] S. f. var. parryi	G5	Meadows, open areas in woods, slopes, grasslands 1,000–3,600 m (3,280–11,810 ft)^[38]^[67]
S. greatae	(Parish) G.L.Nesom	Aster greatae	1902	Greata's aster^[68]	G2	Damp places in canyons of the south slopes of the San Gabriel Mountains of California 300–2,000 m (980–6,560 ft)^[68]	^[68]
S. hallii	(A.Gray) G.L.Nesom	Aster hallii	1872	Hall's aster	G4	Grasslands and meadows with summer dryness 0–500 m (0–1,640 ft)	^[69]^[19]
S. hendersonii	(Fernald) G.L.Nesom	Aster hendersonii	1895	Henderson's aster	G4	Meadows, forest openings, banks 1,000–1,500 m (3,280–4,920 ft) and higher	^[19]
S. jessicae	(Piper) G.L.Nesom	Aster jessicae	1898	Jessica's aster	G2	Dry grasslands, meadows, banks, woodland openings 500–1,200 m (1,640–3,940 ft)	^[19]^[70]
S. lentum	(Greene) G.L.Nesom	Aster lentus	1894	Suisun marsh aster	G2	Freshwater marshes and swamps^[71] 0–300 m (0–980 ft)^[72]	^[71]
S. molle	(Rydb.) G.L.Nesom	Aster mollis	1901	Soft aster	G3	Dry montane meadows 2,000–3,000 m (6,560–9,840 ft)	^[73]^[19]
S. spathulatum	(Lindl.) G.L.Nesom	Aster spathulatus	1834	Western mountain aster Three varieties^[74] S. s. var. spathulatum S. s. var. intermedium S. s. var. yosemitanum (western bog aster)	G5	Montane meadows, open woodlands 100–2,900 m (330–9,510 ft)^[74]
S. subspicatum	(Nees) G.L.Nesom	Aster subspicatus	1832	Douglas's aster	G5	Disturbed and weedy open areas, marshes, thickets 0–1,000 m (0–3,280 ft)

Section Symphyotrichum

Subsection Dumosi

More information Scientific name and picture, Author citation ...

Subsection *Dumosi* (Torr. & A.Gray) G.L.Nesom^[9] – seventeen species
Scientific name and picture	Author citation ^[17]	Basionym ^[18]	Year ^[18]	Common name(s) and varieties ^[19]	NS ^[20]	Habitat ^[19]	Distribution ^[17]
S. boreale	(Torr. & A.Gray) Á.Löve & D.Löve	Aster laxifolius var. borealis	1841	Rush aster Slender white aster Northern bog aster	G5	Calcareous areas, wetland areas 0–1,500 m (0–4,920 ft)
S. bullatum	(Klatt) G.L.Nesom	Aster bullatus	1894		NL	Wet ledges^[75] 37–1,750 m (120–5,740 ft)^[76]
S. burgessii	(Britton) G.L.Nesom	Aster burgessii	1914		NL	Rocky river banks^[77]	^[78]^[17]
S. carnerosanum	(S.Watson) G.L.Nesom	Aster carnerosanus	1891		NL	495–2,850 m (1,620–9,350 ft)^[79]
S. dumosum	(L.) G.L.Nesom	Aster dumosus	1753	Bushy aster	G5	Wetlands, muddy or mucky areas, sand, woods 0–700 m (0–2,300 ft)
S. eulae	(Shinners) G.L.Nesom	Aster eulae	1950	Eula's aster	G4	Part shade, soils with clay or silt, bottom areas or stream banks 0–100 m (0–330 ft)	Endemic to Texas ^[80]^[81]^{[lower-alpha 5]}
S. lanceolatum	(Willd.) G.L.Nesom	Aster lanceolatus	1803	Lance-leaved aster Panicled aster White panicled aster Five varieties^[83] S. l. var. lanceolatum S. l. var. hesperium S. l. var. hirsuticaule S. l. var. interior S. l. var. latifolium	G5	Stream banks, thickets, borders, ditches, meadows, mucky soils (depending on variety) 10–2,700 m (30–8,860 ft)^[83]	^[17]^[84]
S. lateriflorum	(L.) Á.Löve & D.Löve	Solidago lateriflora	1753	Calico aster White woodland aster Side-flowering aster	G5	Mostly shade, dry to humid soils, woodland edges 0–400 m (0–1,310 ft)
S. leone	(Britton) G.L.Nesom	Aster leonis	1920		NL	Marshes^[85]
S. nahanniense	(Cody) Semple	Aster nahanniensis	1974	Nahanni aster	G3	Stream banks near hot mineral springs About 1,000 m (3,280 ft)	Nahanni National Park Reserve Northwest Territories (Canada)^[86]^[19]
S. ontarionis	(Wiegand) G.L.Nesom	Aster ontarionis	1928	Ontario aster Bottomland aster Two varieties^[17] S. o. var. ontarionis S. o. var. glabratum	G5	Moist soils or shores, other wetlands, field edges 10–300 m (30–980 ft)^[38]
S. praealtum	(Poir.) G.L.Nesom	Aster praealtus	1811	Willowleaf aster Willow aster	G5	Usually moist and wet areas 0–400 m (0–1,310 ft)	^[19]
S. racemosum	(Elliott) G.L.Nesom	Aster racemosus	1823	Small white aster Smooth white oldfield aster	G4	Moist to wet, often brackish, soils 0–200 m (0–660 ft)	^[19]
S. schaffneri	(S.D.Sundb. & A.G.Jones) G.L.Nesom	Aster schaffneri	1986		NL	Disturbed oak forests, secondary vegetation areas, mountain mesophilic forests, rich black or brown soils^[87] 120–2,500 m (390–8,200 ft)^[88]	^[89]
S. simmondsii	(Small) G.L.Nesom	Aster simmondsii	1913	Simmonds' aster	G4	Moist to dry soils 0–50 m (0–160 ft)	^[90]
S. tradescantii	(L.) G.L.Nesom	Aster tradescantii	1753	Tradescant's aster Shore aster	G4	Shores, streams, freshwater estuaries 0–200 m (0–660 ft)
S. welshii	(Cronquist) G.L.Nesom	Aster welshii	1994	Welsh's aster	G2	Wet soils in dry areas 1,300–2,300 m (4,270–7,550 ft)

Subsection Heterophylli

Subsection Heterophylli (Nees) Semple^[8]

Subsection Symphyotrichum

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[mh-6] [R 1]
Morgan, D.R.; Holland, B. (2012). "Systematics of Symphyotrichinae (Asteraceae: Astereae): Disagreements Between Two Nuclear Regions Suggest a Complex Evolutionary History". Systematic Botany. 37 (3). American Society of Plant Taxonomists: 818–832. doi:10.1600/036364412X648760. JSTOR 41515169. S2CID 84007309.

[nesom-7] [R 2]
Nesom, G.L. (2018). "Aster gypsophilus (Asteraceae) Segregated as the Monotypic Genus Sanrobertia" (PDF). Phytoneuron. 2018 (25). Fort Worth, Texas: 1–8. ISSN 2153-733X. Retrieved 25 November 2020.

[shb2002-20] [R 1]
Semple, J.C.; Heard, S.B.; Brouillet, L. (2002). "Cultivated and Native Asters of Ontario (Compositae: Astereae)". University of Waterloo Biology Series. 41. Ontario: University of Waterloo: 1–134.

[nesom1994-21] [R 2]
Nesom, G.L. (September 1994). "Review of the Taxonomy of Aster sensu lato (Asteraceae: Astereae), Emphasizing the New World Species". Phytologia. 77 (3) (published 31 January 1995): 141–297. ISSN 0031-9430. Retrieved 23 August 2021 – via Biodiversity Heritage Library.

[22] [R 3]
Sugbenus Ascendentes is made up of two allopolyploid species with historic parents from subg. Virgulus and subg. Symphyotrichum.

[1] Hybrids do not have their own articles.

[57] Elevation in the May Prairie State Natural Area

[65] Elevation on the island of Grand Bahama

[76] In FNA as Symphyotrichum cusickii^[67]

[92] This is a county map of east central Texas showing the range of S. eulae as described by Lloyd Herbert Shinners. Darker green shaded counties were in Shinners' 1950 protologue of Aster eulae. Lighter green shaded counties are within the area covered by Shinners' description. Darker green counties are, alphabetically, as follows: Bexar, Calhoun, Cooke, Dallas, Denton, Hill, Hunt, Kaufman, Navarro, Rockwall, Tarrant, Wise, and Wood.^[80] The following counties are shaded lighter green because they are within Shinners' range but are not specifically named by him: Anderson, Austin, Bastrop, Bell, Bosque, Brazos, Burleson, Caldwell, Collin, Colorado, Comal, Coryell, DeWitt, Ellis, Falls, Fayette, Freestone, Goliad, Gonzales, Guadalupe, Hays, Henderson, Hood, Jack, Johnson, Karnes, Lavaca, Lee, Leon, Limestone, Madison, McLennan, Milam, Parker, Rains, Robertson, Smith, Somervell, Travis, Van Zandt, Victoria, Waller, and Washington. Williamson, and Wilson.^[82] Only McLennan County is green on the S. eulae page in the USDA PLANTS database.^[81]

[123] The locations are from the USDA PLANTS Database with added county information from two sources. Iowa^[17]^[110] — Fayette;^[112] West Virginia — no county information;^[110] Wisconsin — Eau Claire, Grant,^[111] and Waupaca.^[110]

[130] There is also an extensive presence of Symphyotrichum × salignum in Europe and western Asia in the following countries: Assam, Austria, Baltic States, Belarus, Belgium, Bulgaria, Czechoslovakia, Denmark, Finland, France, Germany, Great Britain, Hungary, Ireland, Italy, Kazakhstan, Krym, Netherlands, Norway, Poland, Romania, Spain, Sweden, Switzerland, Tadzhikistan, Ukraine, Uzbekistan, and Yugoslavia.^[17]

[FOOTNOTEMorganHolland2012a-2] [1]
Morgan & Holland (2012a).

[FOOTNOTENesom2018a1-3] [2]
Nesom (2018a), p. 1.

[FOOTNOTEBrouilletLowreyUrbatschKaraman-Castro2009610-4] [3]
Brouillet et al. (2009), p. 610.

[FOOTNOTENesom1994a[httpswwwbiodiversitylibraryorgpage13797384_212]-5] [4]
Nesom (1994a), p. 212.

[FOOTNOTELöve1982358–359-8] [5]
Löve (1982), pp. 358–359.

[FOOTNOTENesom1994b-9] [6]
Nesom (1994b).

[FOOTNOTENesom1994b[httpswwwbiodiversitylibraryorgpage12960072_273]-10] [7]
Nesom (1994b), p. 273.

[FOOTNOTESempleHeardBrouillet2002a133-11] [8]
Semple, Heard & Brouillet (2002a), p. 133.

[FOOTNOTENesom1994b[httpswwwbiodiversitylibraryorgpage12960068_269]-12] [9]
Nesom (1994b), p. 269.

[FOOTNOTENesom1994b[httpswwwbiodiversitylibraryorgpage12960071_272]-13] [10]
Nesom (1994b), p. 272.

[FOOTNOTENesom1994b[httpswwwbiodiversitylibraryorgpage12960073_274]-14] [11]
Nesom (1994b), p. 274.

[FOOTNOTENesom1994b[httpswwwbiodiversitylibraryorgpage12960074_275]-15] [12]
Nesom (1994b), p. 275.

[FOOTNOTENesom1994b[httpswwwbiodiversitylibraryorgpage12960066_267]-16] [13]
Nesom (1994b), p. 267.

[FOOTNOTENesom1994b[httpswwwbiodiversitylibraryorgpage12960070_271]-17] [14]
Nesom (1994b), p. 271.

[FOOTNOTENesom1994b[httpswwwbiodiversitylibraryorgpage12960067_268]-18] [15]
Nesom (1994b), p. 268.

[FOOTNOTENesom1994b[httpswwwbiodiversitylibraryorgpage12960069_270]-19] [16]
Nesom (1994b), p. 270.

[FOOTNOTEPOWO2021search_for_species_name-23] [17]
POWO (2021), search for species name.

[FOOTNOTEIPNI2021search_for_species_name-24] [18]
IPNI (2021), search for species name.

[FOOTNOTEBrouilletSempleAllenChambers2006search_for_species_name-25] [19]
Brouillet et al. (2006), search for species name.

[FOOTNOTENatureServe2022search_for_species_name-26] [20]
NatureServe (2022), search for species name.

[FOOTNOTEUSDA2014c-27] [21]
USDA (2014c).

[FOOTNOTEUSDA2014q-28] [22]
USDA (2014q).

[FOOTNOTEHassler2021[httpswwwcatalogueoflifeorgdatataxon5RQBK_''Symphyotrichum_subulatum''_var._''ligulatum'']-29] [23]
Hassler (2021), Symphyotrichum subulatum var. ligulatum.

[FOOTNOTESanchoAriza_Espinar200310_as_''Aster_glabrifolius''-30] [24]
Sancho & Ariza Espinar (2003), p. 10 as Aster glabrifolius.

[FOOTNOTESanchoAriza_Espinar20039–10_as_''Aster_cabrerae''-31] [25]
Sancho & Ariza Espinar (2003), pp. 9–10 as Aster cabrerae.

[FOOTNOTEHeiden2020-32] [26]
Heiden (2020).

[FOOTNOTEUSDA2014q[httpsplantsscegovusdagovhomeplantProfilesymbolSYEX_''Symphyotrichum_expansum'']-33] [27]
USDA (2014q), Symphyotrichum expansum.

[FOOTNOTEBrouilletSempleAllenChambers2006search_for_''Symphyotrichum_subulatum''_var._''parviflorum''-34] [28]
Brouillet et al. (2006), search for Symphyotrichum subulatum var. parviflorum.

[FOOTNOTEHassler2021[httpswwwcatalogueoflifeorgdatataxon8S8YZ_''Symphyotrichum_parviflorum'']-35] [29]
Hassler (2021), Symphyotrichum parviflorum.

[FOOTNOTESanchoAriza_Espinar200310–11_as_''Aster_patagonicus''-36] [30]
Sancho & Ariza Espinar (2003), pp. 10–11 as Aster patagonicus.

[FOOTNOTESanchoAriza_Espinar200311_as_''Aster_peteroanus''-37] [31]
Sancho & Ariza Espinar (2003), p. 11 as Aster peteroanus.

[FOOTNOTEHassler2021[httpswwwcatalogueoflifeorgdatataxon53Q93_''Symphyotrichum_potosinum'']-38] [32]
Hassler (2021), Symphyotrichum potosinum.

[FOOTNOTESanchoAriza_Espinar200311_as_''Aster_regnellii''-39] [33]
Sancho & Ariza Espinar (2003), p. 11 as Aster regnellii.

[FOOTNOTEBrouilletSempleAllenChambers2006[httpwwweflorasorgflorataxonaspxflora_id1taxon_id250049273_''Symphyotrichum_subulatum'']_varieties_except_''ligulatum''_and_''parviflorum''-40] [34]
Brouillet et al. (2006), Symphyotrichum subulatum varieties except ligulatum and parviflorum.

[FOOTNOTEBrouilletSempleAllenChambers2006[httpwwweflorasorgflorataxonaspxflora_id1taxon_id250067689_''Symphyotrichum_tenuifolium'']_varieties-41] [35]
Brouillet et al. (2006), Symphyotrichum tenuifolium varieties.

[FOOTNOTEHindStrange2019390-42] [36]
Hind & Strange (2019), p. 390.

[FOOTNOTEHindStrange2019387–390-43] [37]
Hind & Strange (2019), pp. 387–390.

[FOOTNOTEBrouilletSempleAllenChambers2006search_for_species_name_and_varieties-44] [38]
Brouillet et al. (2006), search for species name and varieties.

[FOOTNOTEBrouilletSempleAllenChambers2006[httpwwweflorasorgflorataxonaspxflora_id1taxon_id250068829_''Symphyotrichum_ericoides''_var._''ericoides'']-45] [39]
Brouillet et al. (2006), Symphyotrichum ericoides var. ericoides.

[FOOTNOTEBrouilletSempleAllenChambers2006[httpwwweflorasorgflorataxonaspxflora_id1taxon_id250068831_''Symphyotrichum_falcatum''_var._''commutatum'']-46] [40]
Brouillet et al. (2006), Symphyotrichum falcatum var. commutatum.

[FOOTNOTEUSDA2014a-47] [41]
USDA (2014a).

[FOOTNOTENesom2018b6-48] [42]
Nesom (2018b), p. 6.

[FOOTNOTENesom2018b5-49] [43]
Nesom (2018b), p. 5.

[FOOTNOTENesom2018b3-50] [44]
Nesom (2018b), p. 3.

[FOOTNOTENesom2018b2-51] [45]
Nesom (2018b), p. 2.

[FOOTNOTENesom2018b4–5-52] [46]
Nesom (2018b), pp. 4–5.

[FOOTNOTENesom1989-53] [47]
Nesom (1989).

[FOOTNOTEGBIF.org2021b-54] [48]
GBIF.org (2021b).

[FOOTNOTESemple2019a1-55] [49]
Semple (2019a), p. 1.

[FOOTNOTESemple2019b-56] [50]
Semple (2019b).

[FOOTNOTESemple2019a1,_7,_9-58] [51]
Semple (2019a), pp. 1, 7, 9.

[FOOTNOTEGBIF.org2021c-59] [52]
GBIF.org (2021c).

[FOOTNOTESERNEC2021-60] [53]
SERNEC (2021).

[FOOTNOTESemple2019c-61] [54]
Semple (2019c).

[FOOTNOTESemple2014a-62] [55]
Semple (2014a).

[FOOTNOTESemple2014b-63] [56]
Semple (2014b).

[FOOTNOTELeon_Levy_Native_Plant_Preserven.d.-64] [57]
Leon Levy Native Plant Preserve (n.d.).

[FOOTNOTEBrouilletSempleAllenChambers2006[httpwwweflorasorgflorataxonaspxflora_id1taxon_id250068868_''Symphyotrichum''_×_''amethystinum'']-66] [58]
Brouillet et al. (2006), Symphyotrichum × amethystinum.

[FOOTNOTEUSDA2014b-67] [59]
USDA (2014b).

[FOOTNOTEUSDA2014h-68] [60]
USDA (2014h).

[FOOTNOTEUSDA2014n-69] [61]
USDA (2014n).

[FOOTNOTESemplen.d.-70] [62]
Semple (n.d.).

[FOOTNOTECNPS2021a-71] [63]
CNPS (2021a).

[FOOTNOTEAllen2012[httpucjepsberkeleyeduefloraeflora_displayphptid80964_''Symphyotrichum_defoliatum'']-72] [64]
Allen (2012), Symphyotrichum defoliatum.

[FOOTNOTEBrouilletSempleAllenChambers2006-73] [65]
Brouillet et al. (2006).

[FOOTNOTEAllen2012[httpucjepsberkeleyeduefloraeflora_displayphptid80313_''Symphyotrichum_chilense'']-74] [66]
Allen (2012), Symphyotrichum chilense.

[FOOTNOTEBrouilletSempleAllenChambers2006[httpwwweflorasorgflorataxonaspxflora_id1taxon_id250067635_''Symphyotrichum_cusickii'']-75] [67]
Brouillet et al. (2006), Symphyotrichum cusickii.

[FOOTNOTEAllen2012[httpucjepsberkeleyeduefloraeflora_displayphptid80308_''Symphyotrichum_greatae'']-77] [68]
Allen (2012), Symphyotrichum greatae.

[FOOTNOTEUSDA2014d-78] [69]
USDA (2014d).

[FOOTNOTEUSDA2014o-79] [70]
USDA (2014o).

[FOOTNOTECNPS2021b-80] [71]
CNPS (2021b).

[FOOTNOTEAllen2012[httpucjepsberkeleyeduefloraeflora_displayphptid80304_''Symphyotrichum_lentum'']-81] [72]
Allen (2012), Symphyotrichum lentum.

[FOOTNOTEMontana_Natural_Heritage_Programn.d.-82] [73]
Montana Natural Heritage Program (n.d.).

[FOOTNOTEBrouilletSempleAllenChambers2006[httpwwweflorasorgflorataxonaspxflora_id1taxon_id250067687_''Symphyotrichum_spathulatum'']_varieties-83] [74]
Brouillet et al. (2006), Symphyotrichum spathulatum varieties.

[FOOTNOTEFernald1900as_''Aster_jalapensis''-84] [75]
Fernald (1900), as Aster jalapensis.

[FOOTNOTEGBIF.org2021a-85] [76]
GBIF.org (2021a).

[FOOTNOTEBritton191414–15-86] [77]
Britton (1914), pp. 14–15.

[FOOTNOTEGBIF.org2021e-87] [78]
GBIF.org (2021e).

[FOOTNOTEGBIF.org2021d-88] [79]
GBIF.org (2021d).

[FOOTNOTEShinners195036,37,38-89] [80]
Shinners (1950), p. 36,37,38.

[FOOTNOTEUSDA2014r-90] [81]
USDA (2014r).

[FOOTNOTEShinners1950p._36:_"Common_in_north_central_Texas,_from_Hopkins_and_Wood_west_to_Cooke_and_Wise_counties;_extending_south_to_Bexar_and_Calhoun_counties"-91] [82]
Shinners (1950), p. 36: "Common in north central Texas, from Hopkins and Wood west to Cooke and Wise counties; extending south to Bexar and Calhoun counties".

[FOOTNOTEBrouilletSempleAllenChambers2006[httpwwweflorasorgflorataxonaspxflora_id1taxon_id250067656_''Symphyotrichum_lanceolatum'']_varieties-93] [83]
Brouillet et al. (2006), Symphyotrichum lanceolatum varieties.

[FOOTNOTEBrouilletSempleAllenChambers2006[httpwwweflorasorgflorataxonaspxflora_id1taxon_id250068841_''Symphyotrichum_lanceolatum''_var._''hesperium'']-94] [84]
Brouillet et al. (2006), Symphyotrichum lanceolatum var. hesperium.

[FOOTNOTEBritton1920114-95] [85]
Britton (1920), p. 114.

[FOOTNOTEParks_Canada2021-96] [86]
Parks Canada (2021).

[FOOTNOTETORCH2022-97] [87]
TORCH (2022).

[FOOTNOTEGBIF.org2022a-98] [88]
GBIF.org (2022a).

[FOOTNOTESundbergJones1986175–176-99] [89]
Sundberg & Jones (1986), pp. 175–176.

[FOOTNOTESemple2021a-100] [90]
Semple (2021a).

[FOOTNOTEBrouilletSempleAllenChambers2006[httpwwweflorasorgflorataxonaspxflora_id1taxon_id250005045_''Symphyotrichum_laeve'']_varieties-101] [91]
Brouillet et al. (2006), Symphyotrichum laeve varieties.

[FOOTNOTEBrouilletSempleAllenChambers2006[httpwwweflorasorgflorataxonaspxflora_id1taxon_id250068838_''Symphyotrichum_laeve''_var._''geyeri'']-102] [92]
Brouillet et al. (2006), Symphyotrichum laeve var. geyeri.

[FOOTNOTEBrouilletDesmetCoursolMeades2020-103] [93]
Brouillet et al. (2020).

[FOOTNOTEBrouilletSempleAllenChambers2006[httpwwweflorasorgflorataxonaspxflora_id1taxon_id250067638_''Symphyotrichum_drummondii'']_varieties-104] [94]
Brouillet et al. (2006), Symphyotrichum drummondii varieties.

[FOOTNOTEWilhelmRericha20171098-105] [95]
Wilhelm & Rericha (2017), p. 1098.

[FOOTNOTEGustafsonLatham20051447-106] [96]
Gustafson & Latham (2005), p. 1447.

[FOOTNOTEPOWO2022a-107] [97]
POWO (2022a).

[FOOTNOTEMedley2021-108] [98]
Medley (2021).

[FOOTNOTEBritton1901-109] [99]
Britton (1901).

[FOOTNOTENatureServe2022a-110] [100]
NatureServe (2022a).

[FOOTNOTESemple2021c-111] [101]
Semple (2021c).

[FOOTNOTEGianopulos2014-112] [102]
Gianopulos (2014).

[FOOTNOTEBrouilletSempleAllenChambers2006[httpwwweflorasorgflorataxonaspxflora_id1taxon_id250067670_''Symphyotrichum_pilosum'']_varieties-113] [103]
Brouillet et al. (2006), Symphyotrichum pilosum varieties.

[FOOTNOTEUSDA2014e-114] [104]
USDA (2014e).

[FOOTNOTEBrouilletSempleAllenChambers2006[httpwwweflorasorgflorataxonaspxflora_id1taxon_id250067678_''Symphyotrichum_puniceum'']_varieties-115] [105]
Brouillet et al. (2006), Symphyotrichum puniceum varieties.

[FOOTNOTEKauffmanNesomWeakleyGovus2004-116] [106]
Kauffman et al. (2004).

[FOOTNOTEUSDA2014f-117] [107]
USDA (2014f).

[FOOTNOTEUSDA2014p-118] [108]
USDA (2014p).

[FOOTNOTESemple2021b-119] [109]
Semple (2021b).

[FOOTNOTEUSDA2014g-120] [110]
USDA (2014g).

[FOOTNOTEShinners1941407-121] [111]
Shinners (1941), p. 407.

[FOOTNOTERydberg1931102-122] [112]
Rydberg (1931), p. 102.

[FOOTNOTEBritton1901[httpswwwbiodiversitylibraryorgpage39641559_961–962]-124] [113]
Britton (1901), pp. 961–962.

[FOOTNOTEUSDA2014i-125] [114]
USDA (2014i).

[FOOTNOTEUSDA2014j-126] [115]
USDA (2014j).

[FOOTNOTESheldon1894-127] [116]
Sheldon (1894).

[FOOTNOTEPOWO2022b-128] [117]
POWO (2022b).

[FOOTNOTEVerloove2014a-129] [118]
Verloove (2014a).

[FOOTNOTEUSDA2014k-131] [119]
USDA (2014k).

[FOOTNOTESteele1911[httpswwwbiodiversitylibraryorgpage368418_373]-132] [120]
Steele (1911), p. 373.

[FOOTNOTEBrouilletSempleAllenChambers2006[httpwwweflorasorgflorataxonaspxflora_id1taxon_id250067632_''Symphyotrichum_ciliolatum'']-133] [121]
Brouillet et al. (2006), Symphyotrichum ciliolatum.

[FOOTNOTEFernald1915[httpswwwbiodiversitylibraryorgpage567492_16]-134] [122]
Fernald (1915), p. 16.

[FOOTNOTEUSDA2014l-135] [123]
USDA (2014l).

[FOOTNOTEGray1884[httpswwwbiodiversitylibraryorgpage11296212_194]-136] [124]
Gray (1884), p. 194.

[FOOTNOTEGRINn.d.-137] [125]
GRIN (n.d.).

[FOOTNOTEVerloove2014b-138] [126]
Verloove (2014b).

[FOOTNOTEUSDA2014m-139] [127]
USDA (2014m).

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Clade	Type species	Source
Genus Symphyotrichum	S. novi-belgii	^[13]
Subgenus Chapmaniana	S. chapmanii	^[8]
Subgenus Astropolium	S. tenuifolium	^[8]
Subgenus Virgulus	S. concolor	^[10]
Section Ericoidei	S. ericoides	^[11]
Section Patentes	S. patens	^[11]
Subsection Brachyphylli	S. walteri	^[11]
Subsection Patentes	S. patens	^[11]
Section Grandiflori	S. grandiflorum	^[7]
Subsection Mexicanae	S. moranense	^[7]
Subsection Grandiflori	S. grandiflorum	^[7]
Section Polyliguli	S. novae-angliae	^[8]
Section Concolores	S. concolor	^[12]
Subgenus Ascendentes	S. ascendens	^[8]
Subgenus Symphyotrichum	S. novi-belgii	^[15]
Section Conyzopsis	S. ciliatum	^[14]
Section Occidentales	S. spathulatum	^[14]
Section Turbinelli	S. turbinellum	^[8]
Section Symphyotrichum	S. novi-belgii	^[15]
Subsection Dumosi	S. dumosum	^[9]
Subsection Heterophylli	S. cordifolium	^[8]
Series Concinni	S. laeve	^[8]
Series Cordifolii	S. cordifolium	^[8]
Subsection Porteriani	S. porteri	^[16]
Subsection Symphyotrichum	S. novi-belgii
Series Punicei	S. puniceum	^[8]
Series Symphyotrichum	S. novi-belgii

Scientific name and picture	Author citation ^[17]	Basionym ^[18]	Year ^[18]	Common name(s) and varieties ^[19]	NS ^[20]	Habitat ^[19]	Distribution ^[17]
S. georgianum	(Alexander) G.L.Nesom	Aster georgianus	1933	Georgia aster	G3	Sandy or clay soil, woodlands, mostly Piedmont 0–300 m (0–980 ft)
S. patens	(Aiton) G.L.Nesom	Aster patens	1789	Late purple aster Spreading aster Three varieties^[17] S. p. var. patens S. p. var. gracile S. p. var. patentissimum	G5	Dry woodlands, sandy or clay soils, fields 0–1,000 m (0–3,280 ft)^[38]	^[17]^[41]
S. phlogifolium	(Muhl. ex Willd.) G.L.Nesom	Aster phlogifolius	1803	Thinleaf late purple aster	G5	Various soils, rich mesic hardwood forests 0–1,100 m (0–3,610 ft)

Scientific name and picture	Author citation ^[17]	Basionym ^[18]	Year ^[18]	NS ^[20]	Habitat	Distribution
S. bimater	(Standl. & Steyerm.) G.L.Nesom	Aster bimater	1944	NL	Pine-oak woods, ravines, slopes, grassy openings 1,000–2,150 m (3,280–7,050 ft)^[42]	^[42]
S. chihuahuense	G.L.Nesom		2018	NL	Grassland, oak-pine woods 1,800–2,500 m (5,910–8,200 ft)^[43]	^[43]
S. hintonii	(G.L.Nesom) G.L.Nesom	Aster hintonii	1989	NL	Oak and oak-pine woods 1,400–2,200 m (4,590–7,220 ft)^[44]	^[44]
S. moranense	(Kunth) G.L.Nesom	Aster moranensis	1818	NL	Grassland, woodlands 1,000–2,750 m (3,280–9,020 ft)^[45]	^[45]
S. purpurascens	(Sch.Bip.) G.L.Nesom	Aster purpurascens	1854	NL	Open woods 1,500–2,850 m (4,920–9,350 ft)^[46]	^[43]
S. trilineatum	(Sch.Bip. ex Klatt) G.L.Nesom	Aster trilineatus	1884	NL	Mountains (sierra)^[47] 975–2,840 m (3,200–9,320 ft)^[48]	^[48]^[17]
S. turneri	(S.D.Sundb. & A.G.Jones) G.L.Nesom	Aster moranensis var. turneri	1986	NL	Woods, along waterways, and in wet pastures 2,050–2,750 m (6,730–9,020 ft)^[44]	^[44]

Scientific name and picture	Author citation ^[17]	Basionym ^[18]	Year ^[18]	Common name(s) ^[19]	NS ^[20]	Habitat ^[19]	Distribution ^[17]
S. campestre	(Nutt.) G.L.Nesom	Aster campestris	1840	Western meadow aster	G5	Dry habitats, rocky and sandy soils near ponds and streams 1,500–2,500 m (4,920–8,200 ft)
S. estesii	Semple^[49]		2019^[49]	May Prairie aster Estes's aster^[50]	G1	Hydroxeric soils in open, sunny, flat prairies Approx. 330 m (1,070 ft)^{[lower-alpha 2]}^[51]	May Prairie State Natural Area Coffee County, Tennessee (US)^[50]
S. fendleri	(A.Gray) G.L.Nesom	Aster fendleri	1849	Fendler's aster	G4	Open, sandy, silty, shaly, often rocky soils and similar 600–2,000 m (1,970–6,560 ft)
S. fontinale	(Alexander) G.L.Nesom	Aster fontinalis	1933	Florida water aster	G3	Marshes, sandhills, hammocks, flood plains, streams 0–50 m (0–160 ft)	^[52]^[53]^[54]
S. grandiflorum	(L.) G.L.Nesom	Aster grandiflorus	1753	Large-flowered aster	G4	Sandy soils and hills, thickets, roadsides 0–200 m (0–660 ft) and higher
S. oblongifolium	(Nutt.) G.L.Nesom	Aster oblongifolius	1818	Aromatic aster Oblong-leaved aster	G5	Open and dry, rocky or sandy soils 100–1,500 m (330–4,920 ft)	^[19]
S. pygmaeum	(Lindl.) Brouillet & Selliah	Aster pygmaeus	1834	Pygmy aster	G4	Sandy or silty wet areas, gravelly tundra, tundra slopes 0–200 m (0–660 ft)	^[55]
S. yukonense	(Cronquist) G.L.Nesom	Aster yukonensis	1945	Yukon aster	G3	Mud flats, rocky or silty lakeshores 300–1,500 m (980–4,920 ft)	^[56]

Scientific name and picture	Author citation ^[17]	Basionym ^[18]	Year ^[18]	Common name(s) and varieties ^[19]	NS ^[20]	Habitat ^[19]	Distribution ^[17]
S. concolor	(L.) G.L.Nesom	Aster concolor	1753	Eastern silver aster Two varieties^[17] S. c. var. concolor S. c. var. devestitum	G5	Scrub, flatwoods, fields, roadsides 0–600 m (0–1,970 ft)^[38]
S. lucayanum	(Britton) G.L.Nesom	Aster lucayanus	1906	Pineland aster^[57]	NL	Pine woodlands and wetland edges^[57] 0–12 m (0–40 ft)^{[lower-alpha 3]}	Endemic to the island of Grand Bahama^[57]
S. plumosum	(Small) Semple	Aster plumosus	1924		G2	Deep, sandy soils, pine flatwoods, pine-scrub oak woods 0–40 m (0–130 ft)	^[20]
S. pratense	(Raf.) G.L.Nesom	Aster pratensis	1817	Barrens silky aster	G4	Prairies and fields, woodland and scrub, roadsides 0–500 m (0–1,640 ft)
S. sericeum	(Vent.) G.L.Nesom	Aster sericeus	1800	Western silvery aster	G5	Many open habitats 100–500 m (330–1,640 ft)

List_of_Symphyotrichum_species

List of Symphyotrichum species

Conventions

Classification

Classification of Symphyotrichum

Classification within Symphyotrichum

Species list

Subgenus Chapmaniana

Subgenus Astropolium

Subgenus Virgulus

Section Ericoidei

Section Patentes

Subsection Brachyphylli

Subsection Patentes

Section Grandiflori

Subsection Mexicanae

Subsection Grandiflori

Section Polyliguli

Section Concolores

Subgenus Virgulus named hybrids

Subgenus Ascendentes

Subgenus Symphyotrichum

Section Conyzopsis

Section Occidentales

Section Turbinelli

Section Symphyotrichum

Subsection Dumosi

Subsection Heterophylli

Series Concinni

Series Cordifolii

Subsection Porteriani

Subsection Symphyotrichum

Series Punicei

Series Symphyotrichum

Subgenus Symphyotrichum named hybrids

Notes

Citations

References

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Symphyotrichum genus

Some Symphyotrichum species left–right, top–bottom are shown: S. carnerosanum, S. chilense, S. adnatum, S. lateriflorum, S. concolor, S. ericoides, S. defoliatum, S. ciliatum, S. novae-angliae.
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Asterales
Family:	Asteraceae
Subfamily:	Asteroideae
Tribe:	Astereae
Subtribe:	Symphyotrichinae
Genus:	Symphyotrichum Nees

Scientific name and picture	Author citation ^[17]	Basionym ^[18]	Year ^[18]	Common name(s) and varieties ^[19]	NS ^[20]	Habitat	Distribution
S. ericoides	(L.) G.L.Nesom	Aster ericoides	1753	White heath aster Two varieties^[17] S. e. var. ericoides S. e. var. pansum	G5	Open locations with sandy, gravelly, or disturbed soil 30–2,400 m (100–7,870 ft)^[38]	^[17]^[39]
S. falcatum	(Lindl.) G.L.Nesom	Aster falcatus	1834	Western heath aster White prairie aster Two varieties^[17] S. f. var. falcatum S. f. var. commutatum	G5	Well-drained soils, stream banks and slopes, and others 200–2,500 m (660–8,200 ft)^[38]	^[17]^[40]

Scientific name and picture	Author citation ^[17]	Basionym ^[18]	Year ^[18]	Common name(s) ^[19]	NS ^[20]	Habitat ^[19]	Distribution ^[17]
S. adnatum	(Nutt.) G.L.Nesom	Aster adnatus	1834	Scaleleaf aster	G4	Sandy soils, scrub, woods 0–100 m (0–330 ft)
S. walteri	(Alexander) G.L.Nesom	Aster walteri	1933	Walter's aster	G4	Sandy and clay soils, woods edges, open areas 0–100 m (0–330 ft)

Scientific name and picture	Author citation ^[17]	Basionym ^[18]	Year ^[18]	Common name(s)	Parents	Habitat
S. × amethystinum	(Nutt.) G.L.Nesom	Aster amethystinus	1840	Amethyst aster^[58]	S. ericoides × S. novae-angliae^[59]	Prairies or fields, disturbed ground, near parent plants 200–400 m (660–1,310 ft)^[58]
S. × batesii	(Rydb.) G.L.Nesom	Aster batesii	1931		S. ericoides × S. oblongifolium^[60]
S. × columbianum	(Piper) G.L.Nesom	Aster columbianus	1913		S. campestre × S. ericoides^[61]

Scientific name and picture	Author citation ^[17]	Basionym ^[18]	Year ^[18]	Common name(s) ^[19]	NS ^[20]	Habitat	Distribution
S. ascendens	(Lindl.) G.L.Nesom	Aster ascendens	1834	Long-leaved aster Intermountain aster Western aster	G5	Grasslands, sagebrush steppe, meadows 500–3,200 m (1,640–10,500 ft)^[19]	^[17]
S. defoliatum	(Parish) G.L.Nesom	Aster defoliatus	1904	San Bernardino aster	G2	Seeps, marshes, swamps, meadows, montane forests, coastal scrubs^[63] 0–2,050 m (0–6,730 ft)^[64]	^[64]

Scientific name and picture	Author citation ^[17]	Basionym ^[18]	Year ^[18]	Common name(s) ^[19]	NS ^[20]	Habitat ^[19]	Distribution ^[19]
S. ciliatum	(Ledeb.) G.L.Nesom	Erigeron ciliatus	1829	Rayless annual aster Rayless alkali aster	G5	Moist prairies, steppes, salty areas (natural or manmade) 0–2,000 m (0–6,560 ft)	^[17]
S. frondosum	(Nutt.) G.L.Nesom	Tripolium frondosum	1840	Short-rayed alkali aster	G4	Wet meadows, marshes, saline conditions 10–2,200 m (30–7,220 ft)
S. laurentianum	(Fernald) G.L.Nesom	Aster laurentianus	1914	Gulf of St. Lawrence aster	G1	Brackish or salty marshes, shores, and dunes Sea level (0 m (0 ft))

Scientific name and picture	Author citation ^[17]	Basionym ^[18]	Year ^[18]	Common name(s) and varieties ^[19]	NS ^[20]	Habitat ^[19]	Distribution
S. laeve	(L.) Á.Löve & D.Löve	Aster laevis	1753	Smooth aster Four varieties^[91] S. l. var. laeve S. l. var. concinnum S. l. var. geyeri (Geyer’s aster) S. l. var. purpuratum	G5	Open and dry habitats 0–2,400 m (0–7,870 ft)	^[17]^[92]^[93]
S. oolentangiense	(Riddell) G.L.Nesom	Aster oolentangiensis	1835	Azure aster Skyblue aster	G5	Dry or dry to wet habitats 50–500 m (160–1,640 ft)	^[17]^[19]

Scientific name and picture	Author citation ^[17]	Basionym ^[18]	Year ^[18]	Common name(s) and varieties ^[19]	NS ^[20]	Habitat ^[19]	Distribution ^[17]
S. anomalum	(Engelm.) G.L.Nesom	Aster anomalus	1843	Manyray aster	G4	Dry soils over limestone, acid soils 50–500 m (160–1,640 ft)	^[19]
S. ciliolatum	(Lindl.) Á.Löve & D.Löve	Aster ciliolatus	1836	Lindley's aster Fringed blue aster	G5	Rich, open deciduous forests, trails, stream banks 0–2,000 m (0–6,560 ft)
S. cordifolium	(L.) G.L.Nesom	Aster cordifolius	1753	Heartleaf aster Common blue wood aster	G5	Mostly rich, moist soils and woods 0–1,200 m (0–3,940 ft)
S. drummondii	(Lindl.) G.L.Nesom	Aster drummondii	1835	Drummond's aster Two varieties^[94] S. d. var. drummondii S. d. var. texanum (Texas aster)	G5	Old fields, woodlands, savannas depending on variety^[95] 0–500 m (0–1,640 ft)^[94]	^[17]^[38]
S. shortii	(Lindl.) G.L.Nesom	Aster shortii	1834	Short's aster	G5	Thin rocky soils of woodlands and thickets often around limestone bluffs 100–500 m (330–1,640 ft)
S. undulatum	(L.) G.L.Nesom	Aster undulatus	1753	Wavyleaf aster	G5	Dry or well-drained loamy or rocky soils 200–1,500 m (660–4,920 ft)
S. urophyllum	(Lindl.) G.L.Nesom	Aster urophyllus	1836	White arrowleaf aster Arrowleaf aster	G4	Open, dry to mesic habitats 40–300 m (130–980 ft) and higher

Scientific name and picture	Author citation ^[17]	Basionym ^[18]	Year ^[18]	Common name(s) and varieties ^[19]	NS ^[20]	Habitat ^[19]	Distribution ^[17]
S. depauperatum	(Fernald) G.L.Nesom	Aster depauperatus	1908	Serpentine aster Starved aster	G2	Serpentine or diabasic soils 400–1,000 m (1,310–3,280 ft)	^[96]^[20]^[17]
S. kentuckiense	(Britton) Medley^[97]	Aster kentuckiensis	1901	Price's aster^[98] Kentucky aster^[99]	G4 ^[100]	Limestone cedar glades and limestone roadsides^[101]	^[102]^[101]
S. parviceps	(E.S.Burgess) G.L.Nesom	Aster ericoides var. parviceps	1898	Smallhead aster Small white aster	G4	Dry, sandy, or loamy soils; barrens, fields, roadsides, old cemeteries 200–400 m (660–1,310 ft)
S. pilosum	(Willd.) G.L.Nesom	Aster pilosus	1803	Hairy aster Frost aster Hairy white oldfield aster Two varieties^[103] S. p. var. pilosum S. p. var. pringlei (Pringle's aster)	G5	Various and many, depending on variety 0–1,100 m (0–3,610 ft)	^[103]
S. porteri	(A.Gray) G.L.Nesom	Aster porteri	1881	Porter's aster Smooth white aster	G3	Rocky Mountain foothills 1,800–2,900 m (5,910–9,510 ft)	^[104]^[19]

Scientific name and picture	Author citation ^[17]	Basionym ^[18]	Year ^[18]	Common name(s) and varieties ^[19]	NS ^[20]	Habitat ^[19]	Distribution ^[17]
S. elliottii	(Torr. & A.Gray) G.L.Nesom	Aster elliottii	1841	Elliott's aster	G4	Swamps, bogs, marshes, brackish marshes 0–50 m (0–160 ft)	^[19]
S. firmum	(Nees) G.L.Nesom	Aster firmus	1818	Glossy-leaved aster	G5	Wet soils, fens, marshes 100–400 m (330–1,310 ft)
S. prenanthoides	(Muhl. ex Willd.) G.L.Nesom	Aster prenanthoides	1803	Crookedstem aster	G4	Mostly wetlands such as swamps and seeps 100–1,500 m (330–4,920 ft)
S. puniceum	(L.) Á.Löve & D.Löve	Aster puniceus	1753	Purplestem aster Red-stemmed aster Swamp aster Two varieties^[105] S. p. var. puniceum S. p. var. scabricaule (roughstem aster)	G5	Wetlands 0–2,000 m (0–6,560 ft)^[105]
S. rhiannon	Weakley & Govus		2004	Rhiannon's aster Buck Creek aster^[20]	G1	Serpentine barrens 900–1,300 m (2,950–4,270 ft)	Buck Creek Serpentine Barrens,^[106] Clay County, North Carolina (US)^[107]

Scientific name and picture	Author citation ^[17]	Basionym ^[18]	Year ^[18]	Common name(s) and varieties ^[19]	NS ^[20]	Habitat ^[19]	Distribution ^[17]
S. anticostense	(Fernald) G.L.Nesom	Aster anticostensis	1915	Anticosti aster	G3	Calcareous river shores, limestone lake shores 0–100 m (0–330 ft)	^[19]
S. novi-belgii	(L.) G.L.Nesom	Aster novi-belgii	1753	New York aster Four varieties^[17] S. n. var. novi-belgii S. n. var. crenifolium S. n. var. elodes S. n. var. villicaule	G5	Mostly sea or stream shores, thickets, dunes, barrens (depending on variety) 0–800 m (0–2,620 ft)^[38]
S. retroflexum	(Lindl.) G.L.Nesom	Aster retroflexus	1836	Rigid whitetop aster	G4	Moist or dry wooded areas, moist meadows 400–1,500 m (1,310–4,920 ft)	^[108]^[109]
S. robynsianum	(J.Rousseau) Brouillet & Labrecque	Aster robynsianus	1957	Robyn's aster	G5	Moist, open, sandy, gravelly, or rocky habitats 10–400 m (30–1,310 ft)

Scientific name and picture	Author citation ^[17]	Basionym ^[18]	Year ^[18]	Common name(s)	Parents	Habitat	Distribution ^[17]
S. × finkii	(Rydb.) G.L.Nesom	Aster finkii	1931		S. cordifolium × S. shortii^[110]	Wooded bluffs and fencerows^[111]	^{[lower-alpha 6]}^[110]
S. × gravesii	(E.S.Burgess) G.L.Nesom	Aster gravesii	1901	Graves' aster^[113]	S. dumosum × S. laeve^[114]	Dry woods^[113]
S. × longulum	(E.Sheld.) G.L.Nesom	Aster longulus	1894		S. boreale × S. puniceum^[115]	Swampy and marshy areas^[116]
S. × priceae	(Britton) G.L.Nesom	Aster priceae	1901		S. kentuckiense × S. pilosum^[117]		Kentucky^[117]
S. × salignum	(Willd.) G.L.Nesom	Aster salignus	1803		S. lanceolatum var. lanceolatum × S. novi-belgii var. novi-belgii^[118]		^{[lower-alpha 7]}
S. × schistosum	(E.S.Steele) G.L.Nesom	Aster schistosus	1911		S. cordifolium × S. laeve^[119]	Shale gravel, dry hills^[120]
S. × subgeminatum	(Fernald) G.L.Nesom	Aster foliaceus var. subgeminatus	1915		S. ciliolatum × S. novi-belgii var. novi-belgii^[121]	"Damp bushy ravine in the limestone tableland" 200–300 m (660–980 ft)^[122]
S. × tardiflorum	(L.) Greuter, M.V.Agab. & Wagenitz	Aster tardiflorus	1763		S. cordifolium × S. puniceum^[123]	Along streams^[124]
S. × versicolor	(Willd.) G.L.Nesom	Aster versicolor	1803	Late Michaelmas daisy^[125]	S. laeve var. laeve × S. novi-belgii var. novi-belgii^[126]
S. × woldenii	(Rydb.) G.L.Nesom	Aster woldenii	1931		S. laeve × S. praealtum^[127]