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Master Index

Hoary Mountain Mint (Pycnanthemum incanum)
Hobblebush (Viburnum lantanoides)
Hog
     Apple (Podophyllum peltatum)

     Gum (Metopium toxiferum)
Hogpeanut, American (Amphicarpaea bracteata)
Hogweed,
     Giant (Heracleum mantegazzianum)

     Little (Portulaca oleracea)
Holcus lanatus
Hollowleaf Annual Lupine (Lupinus succulentus)
Holly
     (Ilex)

     Fern (Cyrtomium falcatum)
Holly,
     American (Ilex opaca ‘Goldie’)

     Dahoon (Ilex cassine)
     Deciduous (Ilex decidua)
     Desert (Atriplex hymenelytra)
     Desert (Mahonia fremontii)
     English (Ilex aquifolium)
     European (Ilex aquifolium)
     Inkberry (Ilex glabra)
     Mountain (Ilex mucronata)
     Swamp (Ilex mucronata)
     Winterberry (Ilex verticillata ‘Jim Dandy’)
Hollyhock, Black (Alcea rosea ‘Nigra’)
Honckenya peploides
Honesty, Annual (Lunaria annua)
Honey
     Locust (Gleditsia triacanthos)

     Mushroom (Armillaria mellea)
Honey-bells (Cephalanthus occidentalis)
Honey-myrtle, Violet (Melaleuca wilsonii)
Honeycup (Zenobia pulverulenta)
Honeysuckle (Aquilegia canadensis)
Honeysuckle,
     Coral (Lonicera sempervirens)

     Fragrant (Lonicera fragrantissima)
     Japanese (Lonicera japonica)
     Mexican (Justicia spicigera)
     Morning (Oenothera simulans)
     Tatarian (Lonicera tatarica)
     Trumpet (Lonicera sempervirens)
     Wild (Aquilegia canadensis)
     Winter (Lonicera fragrantissima)
Honeysweet (Tidestromia suffruticosa)
Hood, Scarlet (Hygrocybe coccinea)
Hooded
     False Morel (Gyromitra infula)

     Rosette Lichen (Physcia adscendens)
     Skullcap (Scutellaria galericulata)
Hooked
     Agrimony (Agrimonia gryposepala)

     Buttercup (Ranunculus recurvatus)
     Crowfoot (Ranunculus recurvatus)
Hooker’s
     Inula (Inula hookeri)

     Onion (Allium acuminatum)
Hooves, Horse (Phellinus igniarius)
Hop
     Clover (Trifolium aureum)

     Sage (Grayia spinosa)
     Trefoil (Trifolium campestre)
Hop, False (Justicia brandegeana)
Hop-hornbeam (Ostrya virginiana)
Hophornbeam (Ostrya virginiana)
Hophornbeam, Eastern (Ostrya virginiana)
Hopniss (Apios americana)
Hops
     (Humulus lupulus)

     (Humulus ‘Nugget’)
Hops,
     Common (Humulus lupulus var. lupuloides)

     Japanese (Humulus japonicus)
Hordeum
     aegiceras

     distichon
     hexastichon
     hexastichum var.
     irregulare
     sativum
     vulgare
     vulgare ssp. hexastichon
     vulgare var. trifurcatum
Horn of Plenty (Craterellus cornucopioides)
Hornbeam, American (Carpinus caroliniana)
Horse
     Chestnut (Aesculus hippocastanum)

     Foot (Tussilago farfara)
     Hooves (Phellinus igniarius)
Horse-chestnut, Red (Aesculus × carnea ‘Atropunicea’)
Horseflyweed (Baptisia tinctoria)
Horsenettle (Solanum carolinense)
Horsenettle, Carolina (Solanum carolinense)
Horsetail (Equisetum)
Horsetail,
     Field (Equisetum arvense)

     Marsh (Equisetum palustre)
     Meadow (Equisetum pratense)
     Rough (Equisetum hyemale)
     Swamp (Equisetum fluviatile)
     Water (Equisetum fluviatile)
     Woodland (Equisetum sylvaticum)
Horseweed (Conyza canadensis)
Horseweed, Canada (Conyza canadensis)
Hosta
     sieboldiana ‘Big Daddy’

     sieboldiana ‘Time Tunnel’
     ‘Big Daddy’
     ‘Fire and Ice’
     ‘Hadspen Heron’
     ‘Sum and Substance’
Hottentot Fig (Carpobrotus edulis)
Houstonia
     caerulea

     caerulea var. faxonorum
     purpurea
Houstonia, Large (Houstonia purpurea)
Howe Hedgehog (Echinocereus engelmannii)
Huajillo (Havardia pallens)
Hubricht’s Bluestar (Amsonia hubrichtii)
Huckleberry,
     Black (Gaylussacia baccata)

     Blue (Gaylussacia frondosa)
     Blue (Vaccinium deliciosum)
     Bog (Vaccinium uliginosum)
     Bush (Gaylussacia dumosa)
     California (Vaccinium ovatum)
     Cascade (Vaccinium deliciosum)
     Common (Gaylussacia baccata)
     Dwarf (Gaylussacia dumosa)
     Evergreen (Vaccinium ovatum)
     Velvetleaf (Vaccinium myrtilloides)
Huilia albocaerulescens
Hummingbird
     Bush (Justicia californica)

     Trumpet (Epilobium canum ssp. latifolium)
Humulus
     americanus

     japonicus
     lupulus
     lupulus ssp. americanus
     lupulus var. lupuloides
     scandens
     ‘Nugget’
Huperzia selago
Hyacinth,
     Grape (Muscari neglectum)

     Water (Eichhornia crassipes)
     Wild (Camassia scilloides)
Hyacinthoides
     hispanica

     non-scripta
Hyacinthus orientalis ‘All Stars’
Hybrid Trillium (Trillium × spp.)
Hydrangea
Hydrangea
     (Hydrangea macrophylla cv.)

     (Hydrangea macrophylla)
Hydrangea
     arborescens

     arborescens cv. Annabelle
     arborescens var. oblonga
     arborescens var. sterilis
     arborescens ‘Annabelle’
     arborescens ‘Dardom’
     macrophylla
     macrophylla cv.
     paniculata cv. Grandiflora
     paniculata cv. Kyushu
     paniculata ‘Grandiflora’
     paniculata ‘Kyushu’
     quercifolia
Hydrangea,
     Bigleaf (Hydrangea macrophylla)

     Blue (Hydrangea macrophylla)
     Oakleaf (Hydrangea quercifolia)
     Panicled (Hydrangea paniculata ‘Kyushu’)
     Peegee (Hydrangea paniculata ‘Grandiflora’)
     Smooth (Hydrangea arborescens ‘Dardom’)
     Smooth (Hydrangea arborescens)
     Wild (Hydrangea arborescens ‘Annabelle’)
Hydrocotyle
     rotundifolia

     sibthorpioides
     umbellata
Hydrophyllum [Genus]
Hydrophyllum canadense
Hygrocybe [Genus]
Hygrocybe
     coccinea

     flavescens
     marginata
     sp.
Hygrophorus erubescens
Hylocereus undatus
Hylocomium
     alaskanum

     giganteum
     proliferum
     splendens
     splendens var. alaskanum
     splendens var. gracilius
     splendens var. obtusifolium
Hylotelephium
     spectabile ‘Autumn Joy’

     ‘Autumn Joy’
Hymenoclea salsola var. salsola
Hymenopappus filifolius
Hymenopappus, Fineleaf (Hymenopappus filifolius)
Hymenoxys
     acaulis var. glabra

     herbacea
Hyophorbe lagenicaulis
Hyoseris virginica
Hypericum
     chapmanii

     ellipticum
     gentianoides
     mutilum
     mutilum var. latisepalum
     mutilum var. parviflorum
     perforatum
     punctatum
     subpetiolatum
     virginicum var. fraseri
Hypomyces lactifluorum
Hypopitys
     americana

     fimbriata
     insignata
Hypopitys
     lanuginosa

     latisquama
     monotropa
Hypoxis
     decumbens

     hirsuta
Hyptis
     alata

     alata var. stenophylla
     emoryi
     radiata
Ibidium cernuum
Icacorea paniculata
Ice
     Plant (Carpobrotus edulis)

     Plant (Delosperma ‘Beaufort West’)
Idaho Blue-eyed Grass (Sisyrinchium idahoense)
Ilex
Ilex
     aquifolium

     bronxensis
     cassine
     curtissii
     decidua
     decidua var. curtissii
     fastigiata
     glabra
     mucronata
     opaca ‘Goldie’
     verticillata
     verticillata var. cyclophylla
     verticillata var. fastigiata
     verticillata var. padifolia
     verticillata var. tenuifolia
     verticillata ‘Jim Dandy’
     verticillata ‘Nana’
     verticillata ‘Red Sprite’
     vomitoria
Impala Lily (Adenium obesum)
Impatiens
     biflora

     capensis
     fulva
     noli-tangere ssp. biflora
     nortonii
     pallida
Imperial Bromeliad (Alcantarea imperialis)
Improved Meyer Lemon (Citrus × meyeri)
Incense-cedar Mistletoe (Phoradendron libocedri)
India Lovegrass (Eragrostis pilosa)
Indian
     Apple (Podophyllum peltatum)

     Basket Grass (Xerophyllum tenax)
     Beet (Lupinus perennis)
     Blanket (Gaillardia pulchella)
     Camas (Camassia quamash)
     Celery (Heracleum maximum)
     Cucumber (Medeola virginiana)
     Cucumber-root (Medeola virginiana)
     Cup (Silphium perfoliatum)
     Fig (Opuntia ficus-indica)
     Fig Prickly Pear (Opuntia ficus-indica)
     Grass (Sorghastrum nutans)
     Head Ginger (Costus woodsonii)
     Hemp (Apocynum cannabinum)
     Mulberry (Morinda citrifolia)
     Mustard (Brassica juncea)
     Paintbrush (Castilleja)
     Pink (Spigelia marilandica)
     Pipe (Monotropa uniflora)
     Pipeweed (Eriogonum inflatum)
     Poke (Veratrum viride)
     Potato (Apios americana)
     Potato (Sagittaria latifolia)
     Shot Plant (Canna ‘Striata’)
     Strawberry (Duchesnea indica)
     Strawberry Cactus (Echinocereus engelmannii)
     Teasel (Dipsacus sativus)
     Tobacco (Lobelia inflata)
     Tree Spurge (Euphorbia tirucalli)
     Turnip (Arisaema triphyllum)
Indian-paintbrush, Rosy (Castilleja rhexiifolia)
Indian-psychic,
     Midwestern (Gillenia stipulata)

     Mountain (Gillenia trifoliata)
Indianpipe (Monotropa uniflora)
Indiantree Spurge (Euphorbia tirucalli)
Indigo
     (Indigofera tinctoria)

     Bush (Psorothamnus schottii)
Indigo,
     False (Amorpha fruticosa)

     False (Baptisia australis)
     Trailing (Indigofera hendecaphylla)
     True (Indigofera tinctoria)
     Wild (Baptisia tinctoria)
Indigobush,
     Bastard (Amorpha fruticosa)

     Schott (Psorothamnus schottii)
Indigofera
     hendecaphylla

     sumatrana
     tinctoria
Indonesian
     Gum (Eucalyptus deglupta)

     Wax Ginger (Tapeinochilos ananassae)
Inkberry
     (Ilex glabra)

     Holly (Ilex glabra)
Inkwood (Exothea paniculata)
Inland Leather Fern (Acrostichum danaeifolium)
Inocybe aeruginascens
Inodes schwarzii
Interior Goldenbush (Ericameria linearifolia)
Intermountain Bristlecone Pine (Pinus longaeva)
Interrupted
     Clubmoss (Lycopodium annotinum)

     Fern (Osmunda claytoniana)
Intersectional [Itoh] Peony (Paeonia ‘Cora Louise’)
Inula (Inula hookeri)
Inula hookeri
Inula, Hooker’s (Inula hookeri)
Iochroma (Iochroma grandiflorum)
Iochroma grandiflorum
Ionactis linariifolius
Ionoxalis violacea
Ipomea ‘Tie Dye’
Ipomoea
     acuminata

     batatas
     batatas ‘Blackie’
     cathartica
     coccinea var. hederifolia
     congesta
     cordatotriloba
     fastigiata
     hederifolia
     indica
     indica var. acuminata
     mutabilis
     pandurata
     pandurata var. rubescens
     pes-caprae
     sagittata
     tiliacea
     triloba
Ipomoea, Star (Ipomoea hederifolia)
Ipomopsis
     aggregata

     longiflora
     thurberi
Iris [Genus]
Iris
     brevicaulis

     brevipes
     carolina
     foetida
     foetidissima
     foliosa
     foliosa var. boonensis
     laevigata ‘Variegata’
     mississippiensis
     prismatica
     prismatica var. austrina
     pseudacorus
     sibirica ‘Caesar’s Brother’
     sp.
     versicolor
     × germanica ‘Before the Storm’
Iris,
     Bearded (Iris × germanica ‘Before the Storm’)

     Gladwin (Iris foetidissima)
     Lamance (Iris brevicaulis)
     Louisiana (Iris sp.)
     Paleyellow (Iris pseudacorus)
     Stinking (Iris foetidissima)
     Walking (Neomarica bicolor)
Ironbark, White (Eucalyptus leucoxylon)
Ironweed (Vernonia arkansana)
Ironweed,
     Narrowleaf (Vernonia lettermannii)

     Yellow (Verbesina alternifolia)
Ironwood
     (Carpinus caroliniana)

     (Olneya tesota)
     (Ostrya virginiana)
Ironwood,
     Black (Krugiodendron ferreum)

     Desert (Olneya tesota)
Irregular Spindle Gall Wasp (Andricus chrysolepidicola)
Ischnoderma resinosum
Island Marlberry (Ardisia escallonoides)
Isocoma
     pluriflora

     wrightii
Isomeris
     arborea

     arborea var. angustata
     arborea var. globosa
     arborea var. insularis
Isotrema tomentosa
Ivy,
     English (Hedera helix)

     Poison (Toxicodendron radicans)
Ivy-leaved Morning Glory (Ipomoea hederifolia)
Ivybush (Kalmia latifolia)
Ixora (Ixora ‘Singapore’)
Ixora ‘Singapore’
Jabily (Operculicarya decaryi)
Jack O'Lantern Mushroom (Omphalotus illudens)
Jack-go-to-bed-at-noon (Tragopogon lamottei)
Jack-in-the-pulpit (Arisaema triphyllum)
Jack-in-the-pulput (Arisaema triphyllum)
Jack-in-trousers (Aquilegia canadensis)
Jack-o’-lantern Mushroom (Omphalotus olearius)
Jackman Clematis (Clematis × jackmanii)
Jacob’s
     Ladder (Polemonium caeruleum)

     Ladder (Polemonium vanbruntiae)
     Staff (Fouquieria splendens)
Jacquemontia
     curtissii

     curtissii
Jade Plant (Crassula ovata)
Jade,
     Dwarf (Portulacaria afra)

     Spoon (Crassula portulacea)