- Photo: Hablitzia tamnoides 1.
- Photo: Hablitzia tamnoides 2.
- Photo: Hablitzia tamnoides.
- Photo: Hacquetia epipactis.
- Photo: Halesia carolina 1.
- Photo: Halesia carolina 2.
- Photo: Halesia carolina 3.
- Photo: Halesia carolina 4.
- Photo: Halesia carolina 5.
- Photo: Halesia carolina 6.
- Photo: Halesia carolina 7.
- Photo: Halesia carolina 8.
- Photo: Halesia carolina 9.
- Photo: Halesia carolina.
- Photo: Hamamelis japonica 1.
- Photo: Hamamelis japonica.
- Photo: Hamamelis mollis 1.
- Photo: Hamamelis mollis 2.
- Photo: Hamamelis mollis 3.
- Photo: Hamamelis mollis 4.
- Photo: Hamamelis mollis.
- Photo: Hamamelis virginiana 1.
- Photo: Hamamelis virginiana 10.
- Photo: Hamamelis virginiana 11.
- Photo: Hamamelis virginiana 12.
- Photo: Hamamelis virginiana 2.
- Photo: Hamamelis virginiana 3.
- Photo: Hamamelis virginiana 4.
- Photo: Hamamelis virginiana 5.
- Photo: Hamamelis virginiana 6.
- Photo: Hamamelis virginiana 7.
- Photo: Hamamelis virginiana 8.
- Photo: Hamamelis virginiana 9.
- Photo: Hamamelis virginiana.
- Photo: Hamamelis x intermedia 1.
- Photo: Hamamelis x intermedia 2.
- Photo: Hamamelis x intermedia.
- Photo: Harpephyllum caffrum.
- Photo: Hatiora gaertneri 1.
- Photo: Hatiora gaertneri.
- Photo: Haworthia coarctata 1.
- Photo: Haworthia coarctata.
- Photo: Haworthia turgida 1.
- Photo: Haworthia turgida.
- Photo: Hedera helix 1.
- Photo: Hedera helix 2.
- Photo: Hedera helix 3.
- Photo: Hedera helix 4.
- Photo: Hedera helix 5.
- Photo: Hedera helix 6.
- Photo: Hedera helix 7.
- Photo: Hedera helix.
- Photo: Hedychium coccineum 1.
- Photo: Hedychium coccineum.
- Photo: Hedychium coronarium 1.
- Photo: Hedychium coronarium 2.
- Photo: Hedychium coronarium.
- Photo: Hedychium gardnerianum 1.
- Photo: Hedychium gardnerianum 2.
- Photo: Hedychium gardnerianum.
- Photo: Hedysarum coronarium 1.
- Photo: Hedysarum coronarium.
- Photo: Helenium autumnale 1.
- Photo: Helenium autumnale 10.
- Photo: Helenium autumnale 11.
- Photo: Helenium autumnale 12.
- Photo: Helenium autumnale 2.
- Photo: Helenium autumnale 3.
- Photo: Helenium autumnale 4.
- Photo: Helenium autumnale 5.
- Photo: Helenium autumnale 6.
- Photo: Helenium autumnale 7.
- Photo: Helenium autumnale 8.
- Photo: Helenium autumnale.
- Photo: Helianthemum nummularium 1.
- Photo: Helianthemum nummularium 2.
- Photo: Helianthemum nummularium 3.
- Photo: Helianthemum nummularium.
- Photo: Helianthus annuus 1.
- Photo: Helianthus annuus 10.
- Photo: Helianthus annuus 11.
- Photo: Helianthus annuus 12.
- Photo: Helianthus annuus 13.
- Photo: Helianthus annuus 14.
- Photo: Helianthus annuus 15.
- Photo: Helianthus annuus 16.
- Photo: Helianthus annuus 17.
- Photo: Helianthus annuus 18.
- Photo: Helianthus annuus 2.
- Photo: Helianthus annuus 3.
- Photo: Helianthus annuus 4.
- Photo: Helianthus annuus 5.
- Photo: Helianthus annuus 6.
- Photo: Helianthus annuus 7.
- Photo: Helianthus annuus 8.
- Photo: Helianthus annuus 9.
- Photo: Helianthus annuus.
- Photo: Helianthus tuberosus 1.
- Photo: Helianthus tuberosus 2.
- Photo: Helianthus tuberosus 3.
- Photo: Helianthus tuberosus 4.
- Photo: Helianthus tuberosus 5.
- Photo: Helianthus tuberosus 6.
- Photo: Helianthus tuberosus 7.
- Photo: Helianthus tuberosus 8.
- Photo: Helianthus tuberosus 9.
- Photo: Helianthus tuberosus.
- Photo: Helichrysum bracteatum 2.
- Photo: Helichrysum bracteatum 3.
- Photo: Helichrysum bracteatum 4.
- Photo: Helichrysum bracteatum 5.
- Photo: Helichrysum italicum 1.
- Photo: Helichrysum italicum 2.
- Photo: Helichrysum italicum 3.
- Photo: Helichrysum italicum 4.
- Photo: Helichrysum italicum 5.
- Photo: Helichrysum italicum.
- Photo: Helichrysum petiolare 1.
- Photo: Helichrysum petiolare.
- Photo: Heliconia 1.
- Photo: Heliconia 2.
- Photo: Heliconia 3.
- Photo: Heliconia 4.
- Photo: Heliconia 5.
- Photo: Heliconia 6.
- Photo: Heliconia 7.
- Photo: Heliconia psittacorum 1.
- Photo: Heliconia psittacorum.
- Photo: Heliconia.
- Photo: Heliotropium arborescens 1.
- Photo: Heliotropium arborescens 2.
- Photo: Heliotropium arborescens 3.
- Photo: Heliotropium arborescens 4.
- Photo: Heliotropium arborescens 5.
- Photo: Heliotropium arborescens 6.
- Photo: Heliotropium arborescens 7.
- Photo: Heliotropium arborescens.
- Photo: Helleborus 1.
- Photo: Helleborus lividus 1.
- Photo: Helleborus lividus.
- Photo: Helleborus orientalis 1.
- Photo: Helleborus orientalis 2.
- Photo: Helleborus orientalis.
- Photo: Helleborus viridis.
- Photo: Helleborus.
- Photo: Hemerocallis lilioasphodelus 1.
- Photo: Hemerocallis lilioasphodelus 2.
- Photo: Hemerocallis lilioasphodelus.
- Photo: Hepatica nobilis 1.
- Photo: Hepatica nobilis 10.
- Photo: Hepatica nobilis 11.
- Photo: Hepatica nobilis 12.
- Photo: Hepatica nobilis 13.
- Photo: Hepatica nobilis 14.
- Photo: Hepatica nobilis 15.
- Photo: Hepatica nobilis 2.
- Photo: Hepatica nobilis 3.
- Photo: Hepatica nobilis 4.
- Photo: Hepatica nobilis 5.
- Photo: Hepatica nobilis 6.
- Photo: Hepatica nobilis 7.
- Photo: Hepatica nobilis 8.
- Photo: Hepatica nobilis 9.
- Photo: Hepatica nobilis.
- Photo: Hepatica transsylvanica 1.
- Photo: Hepatica transsylvanica 2.
- Photo: Hepatica transsylvanica 3.
- Photo: Hepatica transsylvanica 4.
- Photo: Hepatica transsylvanica.
- Photo: Hepatica x media 1.
- Photo: Hepatica x media 2.
- Photo: Hepatica x media 3.
- Photo: Hepatica x media 4.
- Photo: Hepatica x media 5.
- Photo: Hepatica x media 6.
- Photo: Hepatica x media 7.
- Photo: Hepatica x media 8.
- Photo: Hepatica x media 9.
- Photo: Hepatica x media.
- Photo: Heracleum laciniatum 1.
- Photo: Heracleum laciniatum 2.
- Photo: Heracleum laciniatum.
- Photo: Heracleum mantegazzianum 1.
- Photo: Heracleum mantegazzianum 2.
- Photo: Heracleum mantegazzianum.
- Photo: Herniaria glabra 1.
- Photo: Herniaria glabra 2.
- Photo: Herniaria glabra 3.
- Photo: Herniaria glabra 4.
- Photo: Herniaria glabra 5.
- Photo: Herniaria glabra 6.
- Photo: Herniaria glabra.
- Photo: Hesperis matronalis 1.
- Photo: Hesperis matronalis.
- Photo: Hesperocallis undulata 1.
- Photo: Hesperocallis undulata.
- Photo: Heuchera.
- Photo: Hevea brasiliensis.
- Photo: Hibbertia dentata 1.
- Photo: Hibbertia dentata.
- Photo: Hibiscus 1.
- Photo: Hibiscus 2.
- Photo: Hibiscus 3.
- Photo: Hibiscus 4.
- Photo: Hibiscus 5.
- Photo: Hibiscus cannabinus 1.
- Photo: Hibiscus cannabinus 2.
- Photo: Hibiscus cannabinus.
- Photo: Hibiscus moscheutos 1.
- Photo: Hibiscus moscheutos 2.
- Photo: Hibiscus moscheutos 3.
- Photo: Hibiscus moscheutos.
- Photo: Hibiscus mutabilis 1.
- Photo: Hibiscus mutabilis 2.
- Photo: Hibiscus mutabilis.
- Photo: Hibiscus rosa sinensis 1.
- Photo: Hibiscus rosa sinensis.
- Photo: Hibiscus sabdariffa 1.
- Photo: Hibiscus sabdariffa 2.
- Photo: Hibiscus sabdariffa 3.
- Photo: Hibiscus sabdariffa.
- Photo: Hibiscus schizopetalus 1.
- Photo: Hibiscus schizopetalus 2.
- Photo: Hibiscus schizopetalus 3.
- Photo: Hibiscus schizopetalus 4.
- Photo: Hibiscus schizopetalus 5.
- Photo: Hibiscus schizopetalus 6.
- Photo: Hibiscus schizopetalus 7.
- Photo: Hibiscus schizopetalus.
- Photo: Hibiscus syriacus 1.
- Photo: Hibiscus syriacus 2.
- Photo: Hibiscus syriacus 3.
- Photo: Hibiscus syriacus 4.
- Photo: Hibiscus syriacus 5.
- Photo: Hibiscus syriacus.
- Photo: Hibiscus trionum 1.
- Photo: Hibiscus trionum 2.
- Photo: Hibiscus trionum 3.
- Photo: Hibiscus trionum 4.
- Photo: Hibiscus trionum 5.
- Photo: Hibiscus trionum 6.
- Photo: Hibiscus trionum.
- Photo: Hibiscus.
- Photo: Hieracium pilosella 1.
- Photo: Hieracium pilosella 2.
- Photo: Hieracium pilosella 3.
- Photo: Hieracium pilosella 4.
- Photo: Hieracium pilosella 5.
- Photo: Hieracium pilosella.
- Photo: Hierochloe odorata 1.
- Photo: Hierochloe odorata 2.
- Photo: Hierochloe odorata.
- Photo: Hippeastrum 1.
- Photo: Hippeastrum 2.
- Photo: Hippeastrum.
- Photo: Hippocrepis comosa 1.
- Photo: Hippocrepis comosa 2.
- Photo: Hippocrepis comosa.
- Photo: Hippophae rhamnoides 1.
- Photo: Hippophae rhamnoides 10.
- Photo: Hippophae rhamnoides 11.
- Photo: Hippophae rhamnoides 2.
- Photo: Hippophae rhamnoides 3.
- Photo: Hippophae rhamnoides 4.
- Photo: Hippophae rhamnoides 5.
- Photo: Hippophae rhamnoides 6.
- Photo: Hippophae rhamnoides 7.
- Photo: Hippophae rhamnoides 8.
- Photo: Hippophae rhamnoides 9.
- Photo: Hippophae rhamnoides.
- Photo: Hippuris vulgaris.
- Photo: Holodiscus discolor 1.
- Photo: Holodiscus discolor.
- Photo: Honckenya peploides 1.
- Photo: Honckenya peploides 2.
- Photo: Honckenya peploides 3.
- Photo: Honckenya peploides.
- Photo: Hordeum jubatum 1.
- Photo: Hordeum jubatum 2.
- Photo: Hordeum jubatum.
- Photo: Hordeum vulgare 1.
- Photo: Hordeum vulgare 2.
- Photo: Hordeum vulgare 3.
- Photo: Hordeum vulgare 4.
- Photo: Hordeum vulgare 5.
- Photo: Hordeum vulgare 6.
- Photo: Hordeum vulgare.
- Photo: Houttuynia cordata 1.
- Photo: Houttuynia cordata 2.
- Photo: Houttuynia cordata 3.
- Photo: Houttuynia cordata 4.
- Photo: Houttuynia cordata 5.
- Photo: Houttuynia cordata 6.
- Photo: Houttuynia cordata 7.
- Photo: Houttuynia cordata 8.
- Photo: Houttuynia cordata.
- Photo: Hoya carnosa 1.
- Photo: Hoya carnosa 2.
- Photo: Hoya carnosa.
- Photo: Humulus japonicus 1.
- Photo: Humulus japonicus.
- Photo: Humulus lupulus 1.
- Photo: Humulus lupulus 10.
- Photo: Humulus lupulus 11.
- Photo: Humulus lupulus 12.
- Photo: Humulus lupulus 13.
- Photo: Humulus lupulus 14.
- Photo: Humulus lupulus 15.
- Photo: Humulus lupulus 16.
- Photo: Humulus lupulus 4.
- Photo: Humulus lupulus 5.
- Photo: Humulus lupulus 6.
- Photo: Humulus lupulus 7.
- Photo: Humulus lupulus 8.
- Photo: Humulus lupulus 9.
- Photo: Humulus lupulus.
- Photo: Huperzia selago.
- Photo: Hyacinthoides hispanica.
- Photo: Hydrangea aspera 1.
- Photo: Hydrangea aspera.
- Photo: Hydrangea macrophylla 1.
- Photo: Hydrangea macrophylla.
- Photo: Hydrangea paniculata 1.
- Photo: Hydrangea paniculata 2.
- Photo: Hydrangea paniculata 3.
- Photo: Hydrangea paniculata 4.
- Photo: Hydrangea paniculata 5.
- Photo: Hydrangea paniculata 6.
- Photo: Hydrangea paniculata.
- Photo: Hydrangea petiolaris 1.
- Photo: Hydrangea petiolaris.
- Photo: Hydrangea scandens 1.
- Photo: Hydrangea scandens.
- Photo: Hydrangea serrata 1.
- Photo: Hydrangea serrata 2.
- Photo: Hydrangea serrata.
- Photo: Hydrophyllum virginianum 1.
- Photo: Hydrophyllum virginianum 2.
- Photo: Hydrophyllum virginianum 3.
- Photo: Hydrophyllum virginianum.
- Photo: Hylomecon japonica 1.
- Photo: Hylomecon japonica 2.
- Photo: Hylomecon japonica.
- Photo: Hylotelephium pallescens 1.
- Photo: Hylotelephium pallescens.
- Photo: Hymenocallis littoralis 1.
- Photo: Hymenocallis littoralis 2.
- Photo: Hymenocallis littoralis.
- Photo: Hymenoxys hoopesii 2.
- Photo: Hymenoxys hoopesii 3.
- Photo: Hymenoxys hoopesii 4.
- Photo: Hyoscyamus albus.
- Photo: Hyoscyamus aureus 1.
- Photo: Hyoscyamus aureus.
- Photo: Hyoscyamus niger 1.
- Photo: Hyoscyamus niger 10.
- Photo: Hyoscyamus niger 2.
- Photo: Hyoscyamus niger 3.
- Photo: Hyoscyamus niger 4.
- Photo: Hyoscyamus niger 5.
- Photo: Hyoscyamus niger 6.
- Photo: Hyoscyamus niger 7.
- Photo: Hyoscyamus niger 8.
- Photo: Hyoscyamus niger 9.
- Photo: Hyoscyamus niger.
- Photo: Hypericum adenotrichum 1.
- Photo: Hypericum adenotrichum.
- Photo: Hypericum ascyron 1.
- Photo: Hypericum ascyron 2.
- Photo: Hypericum ascyron 3.
- Photo: Hypericum ascyron.
- Photo: Hypericum cuneatum 1.
- Photo: Hypericum cuneatum.
- Photo: Hypericum kalmianum 1.
- Photo: Hypericum kalmianum 2.
- Photo: Hypericum kalmianum 4.
- Photo: Hypericum kalmianum 5.
- Photo: Hypericum kalmianum 6.
- Photo: Hypericum kalmianum 7.
- Photo: Hypericum kalmianum 8.
- Photo: Hypericum kalmianum 9.
- Photo: Hypericum kalmianum.
- Photo: Hypericum maculatum 1.
- Photo: Hypericum maculatum.
- Photo: Hypericum perforatum 1.
- Photo: Hypericum perforatum 10.
- Photo: Hypericum perforatum 11.
- Photo: Hypericum perforatum 12.
- Photo: Hypericum perforatum 13.
- Photo: Hypericum perforatum 14.
- Photo: Hypericum perforatum 15.
- Photo: Hypericum perforatum 16.
- Photo: Hypericum perforatum 17.
- Photo: Hypericum perforatum 18.
- Photo: Hypericum perforatum 19.
- Photo: Hypericum perforatum 2.
- Photo: Hypericum perforatum 22.
- Photo: Hypericum perforatum 3.
- Photo: Hypericum perforatum 4.
- Photo: Hypericum perforatum 5.
- Photo: Hypericum perforatum 6.
- Photo: Hypericum perforatum 7.
- Photo: Hypericum perforatum 8.
- Photo: Hypericum perforatum 9.
- Photo: Hypericum perforatum.
- Photo: Hypericum pseudohenryi 1.
- Photo: Hypericum pseudohenryi.
- Photo: Hypericum tetrapterum 1.
- Photo: Hypericum tetrapterum 2.
- Photo: Hypericum tetrapterum.
- Photo: Hypericum undulatum 1.
- Photo: Hypericum undulatum.
- Photo: Hypericum x inodorum 1.
- Photo: Hypericum x inodorum 2.
- Photo: Hypericum x inodorum 3.
- Photo: Hypericum x inodorum.
- Photo: Hyptis emoryi 1.
- Photo: Hyptis emoryi 2.
- Photo: Hyptis emoryi.
- Photo: Hyssopus officinalis 1.
- Photo: Hyssopus officinalis 10.
- Photo: Hyssopus officinalis 11.
- Photo: Hyssopus officinalis 12.
- Photo: Hyssopus officinalis 13.
- Photo: Hyssopus officinalis 14.
- Photo: Hyssopus officinalis 15.
- Photo: Hyssopus officinalis 16.
- Photo: Hyssopus officinalis 2.
- Photo: Hyssopus officinalis 3.
- Photo: Hyssopus officinalis 4.
- Photo: Hyssopus officinalis 5.
- Photo: Hyssopus officinalis 6.
- Photo: Hyssopus officinalis 7.
- Photo: Hyssopus officinalis 8.
- Photo: Hyssopus officinalis 9.
- Photo: Hyssopus officinalis.
H
The Hs.