Ha...        
Haageocereus
Haastia
Habenaria
Haberlea
Hablitzea
Habracanthus
Habranthus
Habrochloa
Habroneuron
Habropetalum
Habrosia
Hachettea
Hackelia
Hackelochloa
Hacquetia
Hadrodemas
Haeckeria
Haegiela
Haemanthus
Haematocarpus
Haematodendron
Haematostaphis
Haematostemon
Haematoxylum
Haematoxylum
Haemodorum
Haenianthus
Hagenbachia
Hagenia
Hagsatera
Hainania
Hainardia
Haitia
Hakea
Hakonechloa
Halacsya
Halanthium
Halarchon
Haldina
Halenia
Halesia
Halfordia
Halgania
Halimimum
Halimione
Halimiphyllum
Halimocnemis
Halimodendron
Halimolobos
Hallea
Halleria
Hallia
Hallianthus
Halmoorea
Halocharis
Halocnemum
Halodule
Halogeton
Halopegia
Halopeplis
Halophila
Halophytum
Halopyrum
Haloragis
Haloragodendron
Halosarcia
Halosciatrum
Halosicyos
Halostachys
Halothamnus
Haloxylon
Hamadryas
Hamamelis
Hamelia
Hamilcoa
Hammada
Hammarbya
Hammatolobium
Hampea
Hanabusaya
Hanburia
Hanceola
Hancockia
Hancornia
Handelia
Handeliodendron
Hanguana
Haniffia
Hannafordia
Hannoa
Hannonia
Hansteinia
Hapaline
Hapalochilus
Hapalorchis
Haplanthodes
Haplocarpha
Haplochorema
Haploclathra
Haplocoelum
Haploesthes
Haplolobus
Haplolophium
Haplomosia
Haplopappus
Haplophragma
Haplophyllum
Haplophyton
Haplopteris
Haplorhus
Haplosciadium
Haplosphaera
Haplostachys
Haplostephium
Haplostichanthus
Haplothismia
Haptocarpum
Haraella
Harbouria
Hardenbergia
Hardwickia
Harfordia
Harleya
Harleyodendron
Harmandia
Harmandiella
Harmsia
Harmsiodoxa
Harmsiopanax
Harnackia
Harpachne
Harpagophytum
Harpalyce
Harpanema
Harpephyllum
Harperia
Harperocallis
Harpochilus
Harpochloa
Harpullia
Harrimanella
Harrisella
Harrisia
Harrisonia
Harrysmithia
Hartleya
Hartogiella
Hartogiopsis
Hartwrightia
Harungana
Harveya
Hasseltia
Hasseltiopsis
Hasteola
Hastingsia
Hatiora
Hatschbachiella
Haumania
Haumaniastrum
Haussknechtia
Hauya
Havaria
Havetia
Havetiopsis
Hawkesiophyton
Haworthia
Haya
Hazardia
Hazomalania
Hazomalania


He...
       
Hebanthe
Hebe
Hebeclinium
Hebenstretia
Hebepetalum
Heberdenia
Hebestigma
Hecastocleis
Hecatostemon
Hechtia
Hecistopteris
Heckeldora
Hectorella
Hedbergia
Hedeoma
Hedera
Hederorkis
Hedinia
Hedraianthera
Hedstromia
Hedycarya
Hedychium
Hedyosmum
Hedyotis
Hedypnois
Hedysarum
Hedyscepe
Hedythyrsus
Heeria
Heimia
Heinsenia
Heinsia
Heisteria
Hekistocarpa
Heladena
Helcia
Heldreichia
Helenium
Heliamphora
Helianthella
Helianthemum
Helianthostylis
Helianthus
Helicanthes
Helichrysopsis
Helichrysum
Helicia
Heliciopsis
Helicodiceros
Heliconia
Helicostylis
Helicteres
Helicteropsis
Helictonema
Helictotrichon
Helietta
Helinus
Heliocarpus
Heliocarpus
Heliocarya
Heliocauta
Heliomeris
Heliophila
Heliopsis
Heliotropium
Helipterum
Helixanthera
Helleborus
Hellenocarum
Helleria
Helleriella
Hellmuthia
Helmholtzia
Helminthostachys
Helminthotheca
Helmiopsiella
Helmiopsis
Helmontia
Helogyne
Helonias
Heloniopsis
Helonoma
Helosis
Helwingia
Hemandradenia
Hemarthria
Hemerocallis
Hemiandra
Hemianthus
Hemiarrhena
Hemiboea
Hemiboeopsis
Hemicarpha
Hemichroa
Hemichroa
Hemicrambe
Hemidesmus
Hemidictyum
Hemigenia
Hemigraphis
Hemilophia
Hemimeris
Hemionitis
Hemiorchis
Hemiphora
Hemiphragma
Hemiphylacus
Hemipilia
Hemipogon
Hemiptelea
Hemiscolopia
Hemisorghum
Hemisteptia
Hemitomes
Hemizonia
Hemizygia
Hemsleya
Henleophytum
Hennecartia
Henonia
Henoonia
Henrardia
Henricksonia
Henriettea
Henriettella
Henrya
Hensmania
Hepatica
Heppiella
Heptacodium
Heptanthus
Heptaptera
Heracleum
Herbertia
Herbstia
Herderia
Hereroa
Herissantia
Heritiera
Hermannia
Hermas
Hermbstaedtia
Herminium
Hermodactylus
Hernandia
Herniaria
Herodotia
Herpetacanthus
Herpetophytum
Herpetospermum
Herpolirion
Herpysma
Herpyza
Herrania
Herreanthus
Herreria
Herreriopsis
Herrickia
Herschelianthe
Herya
Hesperaloë
Hesperantha
Hesperelaea
Hesperevax
Hesperis
Hesperocallis
Hesperochiron
Hesperodoria
Hesperolaburnum
Hesperolinon
Hesperomannia
Hesperomecon
Hesperomeles
Hesperopeuce
Hesperostipa
Hesperothamnus
Hesperoxiphion
Hesperozygis
Hessea
Hetaeria
Heterachne
Heteracia
Heteradelphia
Heteranthelium
Heteranthemis
Heteranthera
Heteranthia
Heteranthoecia
Heteroaridarum
Heterocarpha
Heterocaryum
Heterocentron
Heterochaenia
Heterocodon
Heterocoma
Heterocondylus
Heterocypsela
Heteroderis
Heterodraba
Heterogonium
Heterolamium
Heterolepis
Heteromeles
Heteromera
Heteromma
Heteromorpha
Heteropanax
Heteropappus
Heteropetalum
Heteropholis
Heterophragma
Heterophyllaea
Heteroplexis
Heteropogon
Heteropolygonatum
Heteropsis
Heteropterys
Heteropyxis
Heterorhachis
Heterotis
Heterosmilax
Heterospathe
Heterosperma
Heterostachys
Heterostemma
Heterostemon
Heterothalamus
Heterotheca
Heterotis
Heterotoma
Heterotrichum
Heterozeuxine
Heterozostera
Heuchera
Hevea
Hewittia
Hexachlamys
Hexacyrtis
Hexadesmia
Hexaglottis
Hexalectris
Hexalobus
Hexapora
Hexapterella
Hexaspora
Hexatheca
Hexisea
Hexuris
Heynella
Heywoodia




Hi...
       
Hibbertia
Hibiscadelphus
Hibiscus
Hickelia
Hickenia
Hicksbeachia
Hidalgoa
Hieracium
Hieris
Hiernia
Hierobotana
Hierochloe
Hieronima
Hieronymiella
Hilaria
Hildebrandtia
Hildegardia
Hildewintera
Hillebrandia
Hilleria
Hillia
Hilliardia
Himalrandia
Himantoglossum
Himatanthus
Hindsia
Hinterhubera
Hintonella
Hintonia
Hionanthera
Hippeastrum
Hippeophyllum
Hippia
Hippobroma
Hippobromus
Hippocratea
Hippocrepis
Hippolytia
Hippomane
Hippophaë
Hippotis
Hippuris
Hiptage
Hiraea
Hirpicium
Hirschfeldia
Hirtzia
Hispaniella
Hispidella
Histiopteris
Hitchcockella
Hitchenia
Hitoa



Hl...
       
Hladnikia        

Ho...
       
Hochreutinera
Hochstetteria
Hockinia
Hodgkinsonia
Hodgsonia
Hodgsoniola
Hoehnea
Hoehneella
Hoehnephytum
Hoffmannia
Hoffmanniella
Hoffmannseggia
Hofmeisterella
Hofmeisteria
Hohenackeria
Hohenbergia
Hohenbergiopsis
Hoheria
Hoitia
Holarrhena
Holboellia
Holcoglossum
Holcolemma
Holcus
Holigarna
Hollandaea
Hollermayera
Hollisteria
Hollrungia
Holmbergia
Holmgrenanthe
Holmskioldia
Holocalyx
Holocalyx
Holocarpha
Holocheila
Holocheilus
Holochlamys
Holodictyum
Holodiscus
Holographis
Hololachna
Hololeion
Hololepis
Holopogon
Holoptelea
Holostemma
Holosteum
Holostylis
Holostylon
Holothrix
Holozonia
Holstianthus
Holubia
Holzneria
Homalium
Homalocalyx
Homalocarpus
Homalomena
Homalopetalum
Homalosciadium
Homalospermum
Homeria
Homocodon
Homoglossum
Homognaphalium
Homogyne
Homolepis
Homollea
Homolliella
Homonoia
Homopholis
Homoranthus
Homozeugos
Honckenya
Hoodia
Hookerochloa
Hopea
Hopkinsia
Hoplestigma
Hoplophyllum
Hoppea
Horaninovia
Hordelymus
Hordeum
Horichia
Horkelia
Horkeliella
Hormidium
Horminium
Hornea
Hornschuchia
Hornstedtia
Hornungia
Hornwoodia
Horsfieldia
Horsfordia
Horstrissea
Hortia
Hortonia
Horvatia
Hosea
Hosiea
Hoslundia
Hosta
Hostaceae
Hottarum
Hottea
Hottonia
Houlletia
Houssayanthus
Houstonia
Houttuynia
Hovea
Hovenia
Hoverdenia
Howea
Howellia
Howelliella
Howittia
Hoya
Hoyella



Hu...
       

Hua
Huanaca
Huarpea
Hubbardia
Hubbardochloa
Huberia
Huberodendron
Hubertia
Hudsonia

Huernia
Huerniopsis
Huertea
Hughesia
Hugonia
Hugueninia
Huilaea
Hulemacanthus
Hullettia
Hulsea
Humbertia
Humbertianthus
Humbertiella
Humbertiodendron
Humbertioturraea
Humbertochloa
Humboldtia
Humeocline
Humiria
Humiriastrum
Humularia
Humulus
Hunaniopanax
Hunnemannia
Hunteria
Huntleya
Hunzikeria
Huodendron
Huperzia
Hura
Hutchinsonia
Huthia
Huttonaea
Huxleya
Huynhia

Hy...
       

Hyacinthoides
Hyacinthella
Hyacinthus
Hyaenanche
Hyalis
Hyalisma
Hyalocalyx
Hyalochaete
Hyalochlamys
Hyalocystis
Hyalolaena
Hyalopoa
Hyaloseris
Hyalosperma
Hyataella
Hybanthus
Hybochilus
Hybosema
Hybridella
Hydatella
Hydnocarpus
Hydnophytum
Hydnora
Hydrangea
Hydranthelium
Hydrastis
Hydriastele
Hydrilla
Hydrobryopsis

Hydrobryum
Hydrocera
Hydrocharis
Hydrochloa
Hydrocleys
Hydrocotyle
Hydrogaster
Hydrogaster
Hydroidea
Hydrolea
Hydropectis
Hydrophilus
Hydrophylax
Hydrophyllum
Hydrostachys
Hydrothauma
Hydrothrix
Hydrotriche
Hygea
Hygrochilus
Hygrochloa
Hygrophila
Hygroryza
Hylaeanthe
Hylandia
Hylebates
Hylenaea
Hylocarpa
Hylocereus
Hylodendron
Hylomecon
Hylophila
Hylotelephium
Hymenachne
Hymenaea
Hymenandra
Hymenanthera
Hymenocallis
Hymenocardia
Hymenocarpos
Hymenocephalus
Hymenochaeta
Hymenoclea
Hymenocnemis
Hymenocoleus
Hymenocrater
Hymenodictyon
Hymenoglossum
Hymenogyne
Hymenolepis
Hymenolobium
Hymenolobus
Hymenolophus
Hymenonema
Hymenopappus
Hymenophyllopsis
Hymenophyllum
Hymenopyramis
Hymenorchis
Hymenosporum
Hymenostegia
Hymenostemma
Hymenothrix
Hymenoxys
Hyobanche
Hyophorbe
Hyoscyamus
Hyoseris
Hyospathe
Hypacanthium
Hypagophytum
Hyparrhenia
Hypelate
Hypenanthe
Hypenia
Hyperacanthus
Hyperbaena
Hypericophyllum
Hypericopsis
Hypericum
Hypertelis
Hyperthelia
Hyphaene
Hypobathrum
Hypocalymma
Hypocalyptus
Hypochaeris
Hypodaphnis
Hypodematium
Hypoderris
Hypodiscus
Hypoestes
Hypogomphia
Hypogynium
Hypolaena
Hypolepis
Hypolobus
Hypolytrum
Hypoxidia
Hypoxis
Hypsela
Hypselodelphys
Hypseloderma
Hypseocharis
Hypseochloa
Hypserpa
Hypsophila
Hyptianthera
Hyptidendron
Hyptis
Hyssopus
Hysterionica
Hystrichophora
Hystrix