Gardnerina R.M.King & H.Rob. Garhadiolus Jaub. & Spach Garuleum Cass. Gazania Gaertn. Geigeria Griess. Geissolepis B.L.Rob. Gelasia Cass. Geraea Torr. & A.Gray – desert sunflower Gerbera L. – Gerbera or Transvaal daisy Geropogon L. Gibbaria Cass. Gilberta Turcz. Gilruthia Ewart Gladiopappus Humbert × Glebianthemum J.M.Watson & A.R.Flores Glebionis Cass. Glossarion Maguire & Wurdack Glossocardia Cass. Glossopappus Kunze Glyptopleura D.C.Eaton Gnaphaliothamnus Kirp. Gnaphalium L. – cudweed Gnephosis Cass. Gnomophalium Greuter Gochnatia Kunth Goldmanella Greenm. Gongrostylus R.M.King & H.Rob. Gongylolepis Schomb. Goniocaulon Cass. Gonospermum Less. Gonzalezia E.E.Schill. & Panero Gorceixia Baker Gorteria L. Gossweilera S.Moore Goyazianthus R.M.King & H.Rob. Grangea Adans. Grangeopsis Humbert Graphistylis B.Nord. Gratwickia F.Muell. Grauanthus Fayed Grazielia R.M.King & H.Rob. Greenmaniella W.M.Sharp Grindelia Willd. – gumweed Grisebachianthus R.M.King & H.Rob. Grosvenoria R.M.King & H.Rob. Guardiola Cerv. ex Bonpl. Guayania R.M.King & H.Rob. Guevaria R.M.King & H.Rob. Guizotia Cass. Gundelia L. Gundlachia A.Gray Gutenbergia Sch.Bip. Gutierrezia Lag. – snakeweed Guynesomia Bonif. & G.Sancho Gymnanthemum Cass. Gymnarrhena Desf. Gymnocondylus R.M.King & H.Rob. Gymnocoronis DC. Gymnodiscus Less. Gymnolaena Rydb. Gymnopentzia Benth. Gymnosperma Less. Gynoxys Cass. Gynura Cass. Gypothamnium Phil. Gyptidium R.M.King & H.Rob. Gyptis Cass. Gyrodoma Wild H List of genera is from Plants of the World Online unless otherwise cited. Haastia Hook.f. Haeckeria F.Muell. Haegiela P.S.Short & Paul G.Wilson Hainanecio Ying Liu & Q.E.Yang Handelia Heimerl Haplocarpha Less. – onefruit Haploesthes A.Gray – false broomweed Haplopappus Cass. Haptotrichion Paul G.Wilson Harleya S.F.Blake Harmonia B.G.Baldwin Harnackia Urb. Haroldia Bonif. Hartwrightia A.Gray Hasteola Raf. – false Indian plantain Hatschbachiella R.M.King & H.Rob. Hazardia Greene – bristleweed Hebeclinium DC. – thoroughwort Hecastocleis A.Gray Hedosyne Strother Hedypnois Mill. Heiseria E.E.Schill. & Panero Helenium L. – sneezeweed Helianthella Torr. & A.Gray Helianthus L. – sunflowers Helichrysopsis Kirp. Helichrysum Mill. – strawflower, everlasting Heliocauta Humphries Heliomeris Nutt. – false goldeneye Heliopsis Pers. Helminthotheca Zinn Helodeaster G.L.Nesom Helogyne Nutt. Hemizonella A.Gray Hemizonia DC. – tarweed Henricksonia B.L.Turner Heptanthus Griseb. Herderia Cass. Herodotia Urb. & Ekman Herreranthus B.Nord. Hertia Less. Hesperevax A.Gray – dwarf-cudweed Hesperomannia A.Gray – island-aster Heteracia Fisch. & C.A.Mey. Heteranthemis Schott – oxeye Heterocoma DC. Heterocondylus R.M.King & H.Rob. Heterocypsela H.Rob. Heteroderis Boiss. Heterolepis Cass. Heteromera Pomel Heteromma Benth. Heteroplexis C.C.Chang Heterorhachis Sch.Bip. ex Walp. Heterosperma Cav. Heterotheca Cass. – goldenasters, camphorweed, telegraph weed Hidalgoa La Llave Hieracium L. – hawkweed Hilliardia B.Nord. Hilliardiella H.Rob. Hinterhubera Sch.Bip. ex Wedd. Hippia L. Hippolytia Poljakov Hirpicium Cass. Hirtellina Cass. Hispidella Barnadez ex Lam. Hoehnephytum Cabrera Hoffmannanthus H.Rob., S.C.Keeley