Plantae > Tracheophyta > Magnoliopsida > Asterales > Asteraceae

Asteraceae (aster, daisy, or sunflower)

Wikipedia Abstract

The Asteraceae or Compositae (commonly referred to as the aster, daisy, composite, or sunflower family) are an exceedingly large and widespread family of flowering plants (Angiospermae).The family has more than 23,600 currently accepted species, spread across 1,620 genera (list) and 13 subfamilies. In terms of numbers of species, the Asteraceae are rivaled only by the Orchidaceae.
View Wikipedia Record: Asteraceae

Genus

Aaronsohnia (2)
Abrotanella (22)
Acamptopappus (goldenhead) (2)
Acanthocephalus (2)
Acanthocladium (1)
Acanthodesmos (2)
Acanthospermum (starbur) (7)
Acanthostyles (2)
Achillea (yarrow) (185)
Achnophora (1)
Achnopogon (2)
Achyrachaena (blow wives) (1)
Achyrocline (47)   (2)
Achyropappus (3)
Acilepidopsis (1)
Acilepis (37)   (1)
Acmella (spotflower) (32)
Acomis (4)
Acourtia (desertpeony) (82)
Acrisione (2)
Acritopappus (17)
Actinobole (4)
Acunniana (1)
Adelostigma (2)
Adenanthellum (1)
Adenocaulon (trailplant) (5)
Adenoglossa (1)
Adenoon (1)
Adenophyllum (dogweed) (13)
Adenostemma (medicineplant) (21)
Adenostyles (8)
Adenothamnus (1)
Aedesia (3)
Aequatorium (13)   (2)
Aetheolaena (22)   (6)
Aetheorrhiza (1)
Afroaster (18)
Ageratella (1)
Ageratina (snakeroot) (316)   (1)
Ageratinastrum (4)
Ageratum (whiteweed) (38)   (1)
Agnorhiza (5)
Agoseris (agoseris) (12)
Agrianthus (8)
Ainsliaea (49)
Ajania (44)
Ajaniopsis (1)
Akeassia (1)
Alatoseta (1)
Albertinia (1)
Aldama (115)   (1)
Alepidocline (6)
Alfredia (6)
Aliella (4)
Allagopappus (2)
Allardia (9)
Allittia (2)
Allocephalus (1)
Alloispermum (17)
Allopterigeron (1)
Almutaster (alkali marsh aster) (1)
Alomia (4)
Alomiella (2)
Amauria (3)
Ambassa (1)
Amberboa (amberboa) (12)
Amblyocarpum (1)
Amblyolepis (amblyolepis) (1)
Amblyopappus (dwarf coastweed) (1)
Amboroa (2)
Ambrosia (ragweed) (50)
Ameghinoa (1)
Amellus (12)
Ammobium (3)
Ampelaster (climbing aster) (1)
Amphiachyris (broomweed) (2)
Amphiglossa (10)
Amphipappus (chaffbush) (1)
Amphoricarpos (5)
Anacantha (3)
Anacyclus (anacyclus) (15)
Ananthura (1)
Anaphalioides (5)
Anaphalis (Pearly everlasting) (110)
Anaphaloides (3)
Anastraphia (33)
Anaxeton (10)
Ancathia (1)
Ancistrocarphus (neststraw) (2)
Anderbergia (6)
Andryala (25)   (1)
Anemocarpa (3)
Angeldiazia (1)
Angianthus (19)
Anisocarpus (2)
Anisochaeta (1)
Anisocoma (anisocoma) (1)
Anisopappus (33)   (1)
Antennaria (pussytoes) (45)
Anteremanthus (1)
Anthemis (chamomile) (163)   (1)
Anticona (1)
Antillanthus (17)
Antillia (1)
Antiphiona (2)
Antithrixia (1)
Anvillea (2)
Apalochlamys (1)
Aphanactis (11)   (1)
Aphanostephus (dozedaisy) (6)
Aphelexis (4)
Aphyllocladus (4)
Apodocephala (9)
Apopyros (2)
Aposeris (1)
Apostates (1)
Apowollastonia (8)
Arbelaezaster (1)
Archibaccharis (37)
Archiserratula (1)
Arctium (burdock) (53)
Arctogeron (1)
Arctotheca (Capeweed) (5)
Arctotis (arctotis) (67)
Argentipallium (6)
Argyranthemum (dill daisy) (24)   (3)
Argyroglottis (1)
Argyrotegium (4)
Argyroxiphium (silversword) (6)   (1)
Aristeguietia (21)   (1)
Arnaldoa (4)
Arnica (arnica) (32)
Arnicastrum (2)
Arnoglossum (Indian plantain) (9)
Arnoseris (arnoseris) (1)
Arrhenechthites (8)
Arrojadocharis (2)
Arrowsmithia (1)
Artemisia (sagebrush) (363)   (3)
Artemisiopsis (1)
Asanthus (brickellbush) (3)
Ascidiogyne (2)
Askellia (10)
Aspilia (61)   (1)
Asplundianthus (11)
Aster (aster) (174)   (1)
Asteridea (9)
Asteriscus (9)
Asterothamnus (7)
Astranthium (western daisy) (11)
Athanasia (43)   (1)
Athrixia (15)
Athroisma (12)
Atractylis (27)   (2)
Atractylodes (4)
Atrichantha (1)
Atrichoseris (atrichoseris) (1)
Aucklandia (1)   (1)
Austrobrickellia (3)
Austrocritonia (4)
Austroeupatorium (14)   (1)
Austrosynotis (1)
Axiniphyllum (5)
Ayapana (17)
Ayapanopsis (17)
Aynia (1)
Aztecaster (2)
Baccharis (baccharis) (432)   (2)
Baccharoides (24)   (1)
Badilloa (11)   (1)
Baeriopsis (1)
Bafutia (1)
Bahianthus (1)
Bahiopsis (12)
Baileya (desert marigold) (3)
Bajacalia (3)
Balduina (honeycombhead) (3)
Balsamorhiza (balsamroot) (15)
Baltimora (baltimora) (2)
Barkleyanthus (willow ragwort) (1)
Barnadesia (23)   (1)
Barrosoa (11)
Bartlettia (bartlettia) (1)
Bartlettina (bartlettina) (41)   (1)
Basedowia (1)
Batopilasia (1)
Bebbia (sweetbush) (1)
Bechium (3)
Bedfordia (3)
Bejaranoa (2)
Bellida (1)
Bellis (bellis) (14)
Bellium (5)
Belloa (4)
Benitoa (benitoa) (1)
Berardia (1)
Berkheya (berkheya) (78)
Berlandiera (greeneyes) (10)
Berroa (1)
Bertilia (1)
Berylsimpsonia (2)
Bethencourtia (3)
Bidens (beggarticks) (232)   (4)
Bigelowia (rayless goldenrod) (2)
Bishopanthus (1)
Bishopiella (1)
Bishovia (2)
Blainvillea (5)
Blakiella (1)
Blanchetia (2)
Blennosperma (stickyseed) (3)
Blennospora (3)
Blepharipappus (rough eyelash) (1)
Blepharispermum (15)
Blepharizonia (blepharizonia) (2)
Blumea (false oxtongue) (102)
Boeberastrum (2)
Boeberoides (1)
Bolandia (5)
Bolanosa (1)
Bolocephalus (1)
Boltonia (doll's daisy) (6)
Bombycilaena (3)
Borrichia (seaside tansy) (4)
Bothriocline (61)   (2)
Brachanthemum (9)
Brachionostylum (1)
Brachyclados (3)
Brachyglottis (35)
Brachylaena (12)
Brachyscome (95)
Brachythrix (6)
Bracteantha (6)
Bradburia (2)
Brenandendron (3)
Brickellia (brickellbush) (96)
Brickelliastrum (2)
Brintonia (1)
Brocchia (1)
Bryomorphe (1)
Buphthalmum (ox eye) (3)
Burkartia (1)
Caatinganthus (2)
Cabobanthus (2)
Cabreraea (1)
Cabreriella (2)
Cacaliopsis (silvercrown) (1)
Cacosmia (3)
Cadiscus (1)   (1)
Caesulia (1)
Calanticaria (5)
Calea (152)   (1)
Calendula (marigold) (14)
Callicephalus (1)
Callilepis (7)
Callistephus (callistephus) (1)
Calocephalus (12)
Calomeria (4)
Calorezia (2)
Calostephane (6)
Calotesta (1)
Calotis (calotis) (28)
Calycadenia (western rosinweeds) (10)
Calycoseris (tackstem) (2)
Calyptocarpus (calyptocarpus) (3)
Camchaya (9)
Campovassouria (2)
Camptacra (2)
Campuloclinium (16)
Canadanthus (mountain aster) (1)
Cancrinia (6)
Cancriniella (1)
Capelio (3)
Caputia (5)
Cardopatium (2)
Cardosoa (1)
Carduus (plumeless thistle) (97)   (1)
Carlina (carline thistle) (31)   (1)
Carlquistia (1)
Carminatia (carminatia) (4)
Carpesium (18)
Carphephorus (chaffhead) (7)
Carphochaete (bristlehead) (7)
Carramboa (6)
Carthamus (distaff thistles) (46)
Cassinia (47)
Castanedia (1)
Castrilanthemum (1)
Castroviejoa (2)
Catamixis (1)
Catananche (5)
Catatia (2)
Catolesia (2)
Caucasalia (4)
Cavalcantia (2)
Cavea (1)
Caxamarca (2)
Celmisia (celmisia) (79)
Centaurea (knapweed) (746)   (15)   (2)
Centauropsis (8)   (2)
Centaurothamnus (1)
Centipeda (centipeda) (10)
Centratherum (centratherum) (9)
Centromadia (4)
Centropappus (1)
Cephalipterum (1)
Cephalopappus (1)
Cephalosorus (1)
Ceratogyne (1)
Ceruana (1)
Chacoa (1)
Chaenactis (pincushion) (18)
Chaetadelpha (skeletonweed) (1)
Chaetanthera (36)
Chaetopappa (leastdaisy) (11)
Chaetymenia (1)
Chamaechaenactis (chamaechaenactis) (1)
Chamaegeron (4)
Chamaeleon (5)
Chamaemelum (dogfennel) (2)
Chamaepus (1)
Chaptalia (sunbonnetts) (67)
Charadranaetes (1)
Chardinia (2)
Cheirolophus (27)   (8)
Chersodoma (9)
Chevreulia (6)
Chiliadenus (10)
Chiliocephalum (2)
Chiliophyllum (1)
Chiliotrichiopsis (3)
Chiliotrichum (3)
Chimantaea (9)
Chionolaena (23)
Chionopappus (1)
Chlamydophora (1)
Chloracantha (chloracantha) (1)
Chondrilla (chondrilla) (31)
Chondropyxis (1)
Chresta (16)
Chromolaena (thoroughwort) (167)
Chromolepis (1)
Chronopappus (1)
Chrysactinia (chrysactinia) (6)
Chrysactinium (9)
Chrysanthellum (14)
Chrysanthemum (daisy) (43)
Chrysanthoglossum (2)
Chrysocephalum (11)
Chrysocoma (22)
Chrysogonum (chrysogonum) (5)
Chrysolaena (18)
Chrysoma (chrysoma) (1)
Chrysophthalmum (3)
Chrysopsis (goldenaster) (10)
Chrysothamnus (rabbitbrush) (9)
Chthonocephalus (7)
Chucoa (1)
Chuquiraga (23)   (1)
Cicerbita (43)
Ciceronia (1)
Cichorium (chicory) (7)
Cineraria (cineraria) (47)   (1)
Cirsium (thistle) (469)   (4)   (2)
Cissampelopsis (11)
Cladanthus (5)
Cladochaeta (1)
Clappia (clapdaisy) (1)
Clibadium (clibadium) (42)   (2)
Cloiselia (4)
Cnicothamnus (2)
Coespeletia (10)
Coleocoma (1)
Coleostephus (3)
Colobanthera (1)
Cololobus (3)
Columbiadoria (columbiadoria) (1)
Comaclinium (1)
Comborhiza (2)
Commidendrum (4)   (3)
Condylidium (villalba) (2)
Condylopodium (6)
Conocliniopsis (1)
Conoclinium (thoroughwort) (4)
Constancea (Nevin's woolly sunflower) (1)
Conyza (horseweed) (50)
Coreocarpus (coreocarpus) (7)
Coreopsis (tickseed) (87)
Corethamnium (1)
Corethrogyne (sandaster) (1)
Coronidium (21)
Corymbium (9)
Cosmos (cosmos) (35)
Cota (34)
Cotula (waterbuttons) (54)   (1)
Coulterella (1)
Cousinia (689)   (4)
Cousiniopsis (1)
Craspedia (billy buttons) (25)
Crassocephalum (ragleaf) (27)
Crassothonna (13)
Cratystylis (4)
Cremanthodium (70)
Cremnothamnus (1)
Crepidiastrum (22)
Crepis (hawksbeard) (207)   (1)
Crinitaria (4)
Criscia (1)
Criscianthus (1)
Critonia (thoroughwort) (36)
Critoniella (6)
Critoniopsis (71)   (3)
Crocidium (spring-gold) (1)
Crocodylium (3)
Cronquistianthus (23)   (1)
Croptilon (scratchdaisy) (3)
Crossostephium (1)
Crossothamnus (4)   (1)
Crupina (crupina) (3)
Cuatrecasanthus (6)   (1)
Cuatrecasasiella (2)
Cuchumatanea (1)
Culcitium (17)
Cullumia (16)
Cuniculotinus (1)
Cuspidia (1)
Cyanthillium (ironweed) (10)
Cyathocline (4)
Cyathomone (1)
Cyclachaena (1)
Cyclolepis (1)
Cylindrocline (2)   (1)
Cymbonotus (3)
Cymbopappus (3)
Cymophora (cymophora) (4)
Cynara (cynara) (12)   (1)
Cyrtocymura (6)
Dactyotrichia (1)
Dahlia (dahlia) (38)
Damnamenia (1)
Damnxanthodium (1)
Dasyandantha (1)
Dasyanthina (2)
Dasycondylus (9)
Dasyphyllum (38)
Dauresia (2)
Daveaua (1)
Davilanthus (7)
Decachaeta (9)
Decaneuropsis (12)
Decastylocarpus (1)
Decazesia (1)
Deinandra (22)
Delairea (Cape-ivy) (1)   (1)
Delamerea (1)
Delilia (2)
Delwiensia (1)
Dendrocacalia (1)
Dendrophorbium (75)   (3)
Dendrosenecio (12)   (1)
Dendroviguiera (14)
Denekia (1)
Desmanthodium (8)
Dewildemania (7)
Diacranthera (3)
Diaperia (3)
Diaphractanthus (1)
Dicercoclados (1)
Dichaetophora (dichaetophora) (1)
Dichrocephala (4)
Dichromochlamys (1)
Dicoma (53)   (1)
Dicomopsis (1)
Dicoria (twinbugs) (2)
Dicranocarpus (dicranocarpus) (1)
Didelta (2)
Dielitzia (1)
Dieteria (4)
Digitacalia (5)
Dillandia (3)
Dimeresia (dimeresia) (1)
Dimerostemma (30)
Dimorphocoma (1)
Dimorphotheca (Cape marigold) (13)
Diodontium (1)
Diplostephium (114)   (3)
Dipterocome (1)
Dipterocypsela (1)
Disparago (9)
Dissothrix (1)
Distephanus (45)
Disynaphia (14)
Dithyrostegia (2)
Dittrichia (dittrichia) (2)
Doellingeria (whitetop) (3)
Dolichoglottis (2)
Dolichorrhiza (4)
Dolichothrix (1)
Doliclasium (1)
Dolomiaea (14)
Doniophyton (2)
Dorobaea (3)
Doronicum (false leopardbane) (38)
Dresslerothamnus (4)
Dubautia (dubautia) (26)   (7)
Dubyaea (13)
Dugesia (1)
Duhaldea (13)
Duidaea (4)
Duseniella (1)
Dymondia (1)
Dysaster (1)
Dyscritothamnus (2)
Dysodiopsis (dogfennel) (1)
Dyssodia (dyssodia) (7)
Eastwoodia (eastwoodia) (1)
Eatonella (white false tickhead) (1)
Echinacea (purple coneflower) (9)
Echinocoryne (6)
Echinops (globethistle) (215)   (1)
Eclipta (eclipta) (8)
Edmondia (3)
Egletes (tropic daisy) (7)   (1)
Eirmocephala (3)
Eitenia (2)
Ekmania (1)
Ekmaniopappus (1)
Elachanthus (2)
Elaphandra (14)   (2)
Electranthera (3)
Elekmania (9)
Elephantopus (elephantsfoot) (23)   (1)
Eleutheranthera (eleutheranthera) (2)
Ellenbergia (1)
Elytropappus (8)
Emilia (tasselflower) (114)
Emiliella (6)
Encelia (brittlebush) (21)
Enceliopsis (sunray) (3)
Endopappus (1)
Engelmannia (Engelmann's daisy) (1)
Engleria (2)
Enydra (swampwort) (6)
Epaltes (7)
Epilasia (3)
Epitriche (1)
Erato (5)
Erechtites (burnweed) (28)
Eremanthus (34)
Eremosis (26)   (1)
Eremothamnus (1)
Eriachaenium (1)
Ericameria (goldenbush) (40)
Ericentrodea (6)
Erigeron (fleabane) (468)   (4)   (2)
Eriocephalus (36)
Eriochlamys (4)
Eriophyllum (woolly sunflower) (14)
Eriotrix (2)
Erlangea (erlangea) (13)
Erodiophyllum (2)
Erymophyllum (5)
Erythrocephalum (16)
Erythroseris (2)   (1)
Eschenbachia (7)
Espejoa (1)
Espeletia (Frailejón) (78)
Espeletiopsis (26)
Ethulia (15)   (1)
Eucephalus (aster) (10)
Euchiton (euchiton) (20)
Eumorphia (6)
Eupatoriastrum (7)
Eupatorina (1)
Eupatoriopsis (1)
Eupatorium (thoroughwort) (62)   (1)
Euphrosyne (4)
Eurybia (aster) (28)
Eurydochus (2)
Euryops (euryops) (99)   (1)
Eutetras (2)
Euthamia (goldentop) (5)
Eutrochium (5)
Ewartia (4)
Ewartiothamnus (1)
Exomiocarpon (1)
Exostigma (2)
Faberia (9)
Facelis (trampweed) (3)
Famatinanthus (1)
Farfugium (2)
Faujasia (4)
Faujasiopsis (3)   (1)
Faxonia (1)
Feddea (1)
Feldstonia (1)
Felicia (86)
Fenixia (1)
Ferreyranthus (8)
Ferreyrella (2)
Filago (cottonrose) (56)
Filifolium (1)
Fitchia (fitchia) (7)   (1)
Fitzwillia (1)
Flaveria (yellowtops) (21)
Fleischmannia (thoroughwort) (96)
Fleischmanniopsis (3)
Florestina (florestina) (8)
Floscaldasia (2)
Flosmutisia (1)
Flourensia (tarwort) (32)
Flyriella (brickellbush) (4)
Formania (1)
Foveolina (6)
Freya (1)
Frolovia (5)
Fulcaldea (2)
Gaillardia (blanketflower) (21)
Galactites (4)
Galatella (35)
Galeana (1)
Galeomma (2)
Galinsoga (gallant soldier) (12)
Gamochaeta (everlasting) (58)   (1)
Gamochaetopsis (1)
Garberia (garberia) (1)
Garcibarrigoa (2)
Gardn.ina (1)
Garhadiolus (3)
Garuleum (7)
Gazania (gazania) (19)   (1)
Geigeria (28)
Geissolepis (1)
Geraea (desertsunflower) (2)
Gerbera (Transvaal daisy) (31)
Geropogon (1)
Gibbaria (2)
Gilberta (1)
Gilruthia (1)
Gladiopappus (1)
Glebionis (3)
Glossarion (2)
Glossocardia (11)
Glossopappus (1)
Glyptopleura (glyptopleura) (2)
Gnaphalium (cudweed) (54)   (3)
Gnephosis (17)
Gnomophalium (1)
Gochnatia (gochnatia) (23)
Goldmanella (1)
Gongrostylus (2)
Gongylolepis (14)
Goniocaulon (1)
Gonospermum (7)   (2)
Gonzalezia (3)
Gorceixia (1)
Gorteria (7)
Gossweilera (2)
Goyazianthus (1)
Grangea (8)
Grangeopsis (1)
Graphistylis (9)
Gratwickia (1)
Grauanthus (2)
Grazielia (12)
Greenmaniella (1)
Grindelia (gumweed) (65)
Grisebachianthus (7)
Grosvenoria (6)   (1)
Guardiola (guardiola) (12)
Guayania (5)
Guevaria (5)   (1)
Guizotia (guizotia) (7)
Gundelia (gundelia) (11)
Gundlachia (gundlachia) (6)
Gutenbergia (25)   (1)
Gutierrezia (snakeweeds) (34)
Guynesomia (1)
Gymnanthemum (32)
Gymnarrhena (1)
Gymnocondylus (1)
Gymnocoronis (2)
Gymnodiscus (2)
Gymnolaena (3)
Gymnopentzia (1)
Gymnosperma (gymnosperma) (1)
Gynoxys (116)   (4)
Gynura (gynura) (57)   (1)
Gypothamnium (1)
Gyptidium (2)
Gyptis (7)
Gyrodoma (1)
Haastia (3)
Haeckeria (3)
Haegiela (1)
Hainanecio (1)
Handelia (1)
Haplocarpha (onefruit) (10)
Haploesthes (4)
Haplopappus (haplopappus) (71)   (1)
Haptotrichion (2)
Harleya (1)
Harmonia (5)
Harnackia (1)
Haroldia (1)
Hartwrightia (hartwrightia) (1)
Hasteola (false Indian plantain) (3)
Hatschbachiella (2)
Hazardia (bristleweed) (13)
Hebeclinium (thoroughwort) (29)
Hecastocleis (1)
Hedosyne (1)
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Heiseria (2)
Helenium (sneezeweed) (36)
Helianthella (helianthella) (11)
Helianthus (sunflower) (65)
Helichrysopsis (1)
Helichrysum (strawflower) (567)   (3)
Heliocauta (1)
Heliomeris (false goldeneyes) (6)
Heliopsis (heliopsis) (15)
Helminthotheca (5)
Helogyne (8)
Hemistepta (1)
Hemizonella (1)
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Henricksonia (1)
Heptanthus (7)
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Hertia (9)
Hesperevax (dwarf-cudweed) (3)
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Heterotheca (false goldenaster) (28)
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Hypochaeris (cat's ear) (82)   (1)   (1)
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Jessea (4)
Joseanthus (5)   (2)
Jungia (30)   (2)
Jurinea (230)   (5)
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Kingianthus (2)   (1)
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Klasea (56)
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Koanophyllon (thoroughwort) (123)   (1)
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Krigia (dwarfdandelion) (7)
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Kyrsteniopsis (8)
Lachanodes (1)   (1)
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Lactuca (lettuce) (116)   (1)
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Lamyropsis (7)   (1)
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Lasianthaea (lasianthaea) (16)
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Launaea (launaea) (56)
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Leontodon (hawkbit) (39)
Leontopodium (57)
Lepidaploa (146)   (1)
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Lessingianthus (143)
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Liabum (37)
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Lipochaeta (7)
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Llerasia (14)   (1)
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Loricaria (20)   (1)
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Lychnophora (42)
Lychnophoriopsis (4)
Lycoseris (11)   (1)
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Macowania (12)
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Melampodium (blackfoot) (45)
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Melanthera (squarestem) (12)   (1)
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Metalasia (57)
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Micropus (cottonseed) (1)
Microseris (silverpuffs) (21)
Microspermum (10)
Mikania (hempvine) (442)   (8)   (1)
Mikaniopsis (15)
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Minasia (7)
Minuria (12)
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Mniodes (17)
Monactis (12)   (2)
Monarrhenus (2)   (1)
Monogereion (1)
Monolopia (monolopia) (5)
Monoptilon (desertstar) (2)
Monosis (8)
Montanoa (montanoa) (29)
Monticalia (75)   (1)
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Moquiniastrum (21)
Morithamnus (2)
Moscharia (2)
Msuata (1)
Mtonia (1)   (1)
Munnozia (43)   (1)
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Mutisia (65)   (3)
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Myopordon (6)
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Myriocephalus (15)
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Nabalus (18)   (1)
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Nassauvia (39)
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Neurolaena (neurolaena) (14)
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Nicolasia (7)
Nicolletia (hole-in-the-sand plant) (3)
Nidorella (30)
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Oedera (19)
Okia (2)
Oldenburgia (4)
Oldfeltia (1)
Olearia (daisy bush) (183)   (2)
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Oncosiphon (oncosiphon) (8)
Ondetia (1)
Onopordum (cottonthistle) (69)   (1)   (1)
Onoseris (32)
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Oreostemma (aster) (3)
Oresbia (1)
Oriastrum (17)
Oritrophium (23)   (1)
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Osmitopsis (9)
Osteospermum (daisybush) (79)
Oteiza (4)
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Pallenis (6)
Pamphalea (9)
Paneroa (1)
Pappobolus (37)   (1)
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Parasenecio (Indian plantain) (76)
Parastrephia (5)
Parthenice (parthenice) (1)
Parthenium (feverfew) (21)   (1)
Pasaccardoa (4)
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Pectis (chinchweed) (93)
Pegolettia (8)
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Pembertonia (1)
Pentacalia (163)   (4)
Pentachaeta (pygmydaisy) (6)
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Pentanema (23)
Pentatrichia (5)
Pentzia (pentzia) (31)
Perdicium (2)
Perezia (33)
Pericallis (ragwort) (16)   (2)
Pericome (pericome) (2)
Peripleura (9)
Perityle (rockdaisy) (72)
Perralderia (3)
Pertya (29)
Perymeniopsis (1)
Perymenium (61)
Petalacte (1)
Petasites (Butterbur) (25)
Peteravenia (5)
Petradoria (rock goldenrod) (1)
Petrobium (1)   (1)
Peucephyllum (pygmycedar) (1)
Phacellothrix (1)
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Phagnalon (38)
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Phalacraea (4)
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Phalacroseris (mock dandelion) (1)
Phaneroglossa (1)
Phania (3)
Philactis (2)
Philoglossa (5)
Philyrophyllum (2)
Phitosia (1)   (1)
Phoebanthus (false sunflower) (2)
Phyllocephalum (11)   (1)
Phymaspermum (24)
Picnomon (1)
Picradeniopsis (bahia) (8)
Picris (oxtongue) (47)   (1)
Picrosia (2)
Picrothamnus (bud sagebrush) (1)
Pilbara (1)
Pilosella (hawkweed) (289)   (1)   (3)
Piloselloides (2)
Pinaropappus (rocklettuce) (10)
Pinillosia (1)
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Piptocarpha (ashdaisy) (50)
Piptocoma (velvetshrub) (18)
Piptolepis (12)
Piqueria (6)
Piqueriella (1)
Pithocarpa (5)
Pittocaulon (6)
Pityopsis (silkgrass) (7)
Pladaroxylon (1)   (1)
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Platyschkuhria (basindaisy) (1)
Plazia (4)
Plecostachys (2)
Plectocephalus (9)   (1)   (1)
Pleiacanthus (thorn skeletonweed) (1)
Pleiotaxis (34)
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Pleurocoronis (pleurocoronis) (3)
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Pluchea (camphorweed) (65)   (1)
Podachaenium (5)
Podanthus (2)
Podocoma (7)
Podolepis (21)
Podospermum (18)   (4)
Podotheca (8)
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Polyachyrus (7)
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Polymnia (polymnia) (4)
Polytaxis (3)
Porophyllum (poreleaf) (32)
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Praxeliopsis (1)
Praxelis (17)
Prenanthes (rattlesnakeroot) (9)
Prestelia (1)
Printzia (6)
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Proteopsis (1)
Proustia (proustia) (5)
Psacaliopsis (5)
Psacalium (Indianbush) (51)
Psathyrotes (turtleback) (3)
Psathyrotopsis (3)
Psednotrichia (3)
Psephellus (112)   (14)
Pseudelephantopus (dog's-tongue) (2)
Pseudobaccharis (7)
Pseudobahia (sunburst) (3)
Pseudoblepharispermum (2)
Pseudobrickellia (3)
Pseudoclappia (false clapdaisy) (2)
Pseudoglossanthis (5)
Pseudognaphalium (cudweeds) (109)
Pseudogynoxys (pseudogynoxys) (16)   (1)
Pseudohandelia (1)
Pseudonoseris (4)
Pseudopiptocarpha (4)
Pseudostifftia (1)
Psiadia (62)   (1)
Psiadiella (1)
Psilactis (tansyaster) (6)
Psilocarphus (woollyheads) (4)
Psilostrophe (paperflower) (7)
Psychrogeton (26)
Psychrophyton (9)
Pterachaenia (1)
Pterocaulon (blackroot) (26)
Pterochaeta (1)
Pteronia (68)
Pterothrix (4)
Pterygopappus (1)
Ptilostemon (19)
Pulicaria (false fleabane) (87)   (3)
Pulicarioidea (1)
Pycnosorus (6)
Pyrrhopappus (desert-chicory) (4)
Pyrrocoma (goldenweeds) (14)
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Quinetia (1)
Quinqueremulus (1)
Rachelia (1)
Radlkoferotoma (3)
Rafinesquia (plumeseed) (2)
Raillardella (raillardella) (3)
Rainiera (1)
Raoulia (12)
Raouliopsis (2)
Rastrophyllum (2)
Ratibida (prairie coneflower) (7)
Raulinoreitzia (3)
Rayjacksonia (tansyaster) (3)
Reichardia (brighteyes) (12)
Relhania (13)
Remya (remya) (3)   (2)
Rensonia (1)
Rhagadiolus (rhagadiolus) (2)
Rhamphogyne (1)
Rhanteriopsis (4)
Rhanterium (3)
Rhantherium (1)
Rhaponticoides (24)   (2)
Rhaponticum (28)   (1)   (1)
Rhetinocarpha (1)
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Rhinactinidia (4)
Rhodanthe (46)
Rhodanthemum (14)
Rhynchopsidium (2)
Richterago (17)
Richteria (10)
Riencourtia (7)
Rigiopappus (rigiopappus) (1)
Robinsonecio (2)
Robinsonia (8)
Rochonia (4)
Roebuckiella (9)
Rojasianthe (1)
Rolandra (yerba de plata) (1)
Roldana (groundsel) (61)
Roodebergia (1)
Rosenia (4)
Rothmaleria (1)
Rudbeckia (coneflower) (32)
Rugelia (Rugel's Indianplantain) (1)
Ruilopezia (24)
Rumfordia (7)
Russowia (1)
Rutidosis (9)
Sabazia (17)
Sachsia (sachsia) (3)
Salcedoa (1)
Salmea (bejuco de miel) (12)
Sampera (8)
Santolina (lavender cotton) (24)
Santosia (1)
Sanvitalia (creeping zinnia) (7)
Sarcanthemum (1)
Sartwellia (glowwort) (4)
Saussurea (saw-wort) (457)
Scabrethia (1)
Scalesia (15)   (5)
Scherya (1)
Schischkinia (1)
Schistocarpha (13)
Schistostephium (13)
Schizogyne (3)
Schizoptera (1)
Schizotrichia (2)
Schkuhria (false threadleaf) (2)
Schlagintweitia (3)
Schlechtendalia (1)
Schoenia (4)
Sciadocephala (5)
Sclerocarpus (bonebract) (10)
Sclerolepis (bogbutton) (1)
Sclerorhachis (6)
Scolymus (golden thistle) (3)
Scorzonera (scorzonera) (184)   (3)
Scorzoneroides (22)
Scrobicaria (3)
Selloa (3)
Semiria (1)
Senecio (ragworts and groundsels) (1,462)   (4)   (5)
Sericocarpus (whitetop aster) (5)
Seriphidium (113)
Serratula (plumeless saw-wort) (4)
Shafera (1)
Shangwua (3)
Sheareria (1)
Shinnersia (1)
Shinnersoseris (beaked skeletonweed) (1)
Siapaea (1)
Sidneya (2)
Siebera (2)
Sigesbeckia (St. Paul's wort) (12)
Siloxerus (4)
Silphium (rosinweed) (13)
Silybum (milkthistle) (2)
Simsia (bushsunflower) (31)
Sinacalia (4)
Sinclairia (27)
Sinosenecio (butterweed) (42)
Smallanthus (smallanthus) (25)
Soaresia (1)
Solanecio (16)
Solenogyne (2)
Solidago (goldenrod) (124)
Soliva (burrweed) (5)
Sommerfeltia (2)
Sonchella (2)
Sonchus (sowthistle) (103)   (14)
Sondottia (2)
Soroseris (8)
Spaniopappus (5)
Sparganophorus (1)
Sphaeranthus (39)   (1)
Sphaereupatorium (1)
Sphaeromorphaea (6)
Sphagneticola (creeping-oxeye) (5)   (1)
Spilanthes (spilanthes) (9)
Spiracantha (dogwoodleaf) (1)
Spiroseris (1)
Squamopappus (1)
Stachycephalum (3)
Staehelina (4)
Standleyanthus (1)
Staurochlamys (1)
Steiractinia (14)
Steirodiscus (6)
Stenachaenium (5)
Stenocarpha (2)
Stenocephalum (6)
Stenocline (2)
Stenopadus (15)   (1)
Stenops (2)
Stenotus (mock goldenweed) (4)
Stephanbeckia (1)
Stephanodoria (1)
Stephanomeria (wirelettuce) (17)
Stevia (candyleaf) (269)   (1)
Steviopsis (5)
Steyermarkina (4)
Stifftia (6)
Stilpnogyne (1)
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Stilpnopappus (21)
Stizolophus (4)
Stoebe (35)
Stokesia (stokesia) (1)
Stomatanthes (16)
Stomatochaeta (6)
Stramentopappus (2)
Streptoglossa (8)
Strobocalyx (9)
Strotheria (1)
Stuartina (2)
Stuckertiella (2)
Stylocline (neststraw) (8)
Stylotrichium (5)
Symphyllocarpus (1)
Symphyopappus (13)
Symphyotrichum (aster) (105)
Syncalathium (6)
Syncarpha (Everlasting) (28)
Syncephalum (5)
Syncretocarpus (3)
Synedrella (1)
Synedrellopsis (1)
Syneilesis (7)
Synotis (56)
Syntrichopappus (Fremont's gold) (2)
Synurus (3)
Syreitschikovia (2)
Tagetes (marigold) (49)
Takhtajaniantha (1)
Talamancalia (1)
Tamananthus (1)
Tamania (1)
Tamaulipa (boneset) (1)
Tanacetopsis (24)
Tanacetum (tansy) (141)   (1)
Taplinia (1)
Taraxacum (dandelion) (2,366)   (1)
Tarchonanthus (4)
Tarlmounia (1)
Tehuana (2)
Teixeiranthus (2)
Telanthophora (11)
Telekia (1)
Telmatophila (1)
Tenrhynea (1)
Tephroseris (groundsel) (47)   (1)
Tessaria (4)
Tetrachyron (10)
Tetradymia (horsebrush) (11)
Tetragonotheca (nerveray) (4)
Tetramolopium (tetramolopium) (38)   (1)
Tetraneuris (bitterweed) (9)
Tetranthus (4)
Tetraperone (1)
Thaminophyllum (3)
Thelesperma (greenthread) (13)
Thespidium (1)
Thespis (3)
Thevenotia (2)
Thiseltonia (2)
Thurovia (triflora rose) (1)
Thymophylla (pricklyleaf) (13)
Thymopsis (2)
Tietkensia (1)
Tilesia (3)
Tithonia (tithonia) (15)   (1)
Toiyabea (1)
Tolpis (umbrella milkwort) (23)   (1)
Tomentaurum (2)
Tonestus (serpentweed) (4)
Tourneuxia (1)
Townsendia (Townsend daisy) (29)
Tracyina (Indian headdress) (1)
Tragopogon (goatsbeard) (123)   (4)
Traversia (1)
Trepadonia (2)
Trichanthemis (6)
Trichanthodium (4)
Trichocline (23)
Trichocoronis (bugheal) (2)
Trichocoryne (1)
Trichogonia (26)
Trichogoniopsis (3)
Trichogyne (8)
Tricholepis (19)
Trichoptilium (yellowhead) (1)
Trichospira (1)
Tridactylina (1)
Tridax (tridax) (33)
Trigonopterum (1)
Trigonospermum (7)
Triniteurybia (1)
Trioncinia (2)
Tripleurospermum (mayweed) (40)   (1)
Triplocephalum (1)
Tripolium (sea aster) (2)   (1)
Triptilion (7)
Triptilodiscus (1)
Trixis (threefold) (44)
Troglophyton (6)
Tuberculocarpus (1)
Tuberostylis (2)
Tugarinovia (1)
Turanecio (10)
Turczaninovia (1)
Tussilago (coltsfoot) (1)
Tuxtla (1)
Tyleropappus (1)
Tyrimnus (1)
Tzvelevopyrethrum (3)
Uechtritzia (3)
Ugamia (1)
Uleophytum (1)
Uniyala (7)
Unxia (2)
Urbinella (1)
Urmenetia (1)
Urolepis (1)
Urospermum (urospermum) (2)
Urostemon (1)
Ursinia (41)
Varilla (varilla) (2)
Varthemia (1)
Vellereophyton (7)
Venegasia (venegasia) (1)
Verbesina (Crownbeard) (349)   (6)
Vernonanthura (76)
Vernonella (11)
Vernonia (ironweed) (350)   (1)
Vernoniastrum (12)
Vernoniopsis (2)
Vieraea (1)
Vigethia (1)
Viguiera (goldeneye) (23)
Villanova (5)
Villasenoria (1)
Vinicia (1)
Vittadinia (22)
Vittetia (2)
Volutaria (16)
Waitzia (8)
Wamalchitamia (7)
Warionia (1)
Wedelia (creeping-oxeyes) (134)   (1)
Welwitschiella (1)
Werneria (23)
Westoniella (6)
Wilkesia (iliau) (2)   (1)
Willemetia (2)
Wollastonia (26)   (4)
Wunderlichia (6)
Wyethia (mule-ears) (10)
Xanthisma (sleepydaisy) (20)
Xanthium (cocklebur) (5)   (1)
Xanthocephalum (xanthocephalum) (5)
Xanthopappus (1)
Xenophyllum (22)   (1)
Xeranthemum (5)
Xerochrysum (2)
Xiphochaeta (1)
Xylanthemum (6)
Xylorhiza (woodyaster) (10)
Yariguianthus (1)
Yermo (desert yellowhead) (1)
Youngia (youngia) (37)
Zaluzania (12)
Zandera (3)
Zemisia (1)
Zexmenia (5)
Zinnia (zinnia) (23)
Zoegea (3)
Zyrphelis (25)
Zyzyura (1)
Zyzyxia (1)

(...) = Species count
(...) = Endangered count
(...) = Invasive count

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