- Photo: Iberis amara 1.
- Photo: Iberis amara.
- Photo: Iberis sempervirens 1.
- Photo: Iberis sempervirens 2.
- Photo: Iberis sempervirens 3.
- Photo: Iberis sempervirens.
- Photo: Ilex aquifolium 1.
- Photo: Ilex aquifolium 10.
- Photo: Ilex aquifolium 11.
- Photo: Ilex aquifolium 12.
- Photo: Ilex aquifolium 13.
- Photo: Ilex aquifolium 14.
- Photo: Ilex aquifolium 15.
- Photo: Ilex aquifolium 2.
- Photo: Ilex aquifolium 3.
- Photo: Ilex aquifolium 4.
- Photo: Ilex aquifolium 5.
- Photo: Ilex aquifolium 6.
- Photo: Ilex aquifolium 7.
- Photo: Ilex aquifolium 8.
- Photo: Ilex aquifolium 9.
- Photo: Ilex aquifolium.
- Photo: Ilex canariensis 1.
- Photo: Ilex canariensis 2.
- Photo: Ilex canariensis 3.
- Photo: Ilex canariensis.
- Photo: Ilex cornuta.
- Photo: Ilex integra.
- Photo: Ilex paraguariensis 1.
- Photo: Ilex paraguariensis 2.
- Photo: Ilex paraguariensis.
- Photo: Ilex verticillata 1.
- Photo: Ilex verticillata 2.
- Photo: Ilex verticillata.
- Photo: Ilex vomitoria 1.
- Photo: Ilex vomitoria.
- Photo: Iliamna rivularis 1.
- Photo: Iliamna rivularis 2.
- Photo: Iliamna rivularis.
- Photo: Illicium anisatum 1.
- Photo: Illicium anisatum 2.
- Photo: Illicium anisatum.
- Photo: Illicium verum 1.
- Photo: Illicium verum 2.
- Photo: Illicium verum.
- Photo: Impatiens balsamina 1.
- Photo: Impatiens balsamina.
- Photo: Impatiens glandulifera 1.
- Photo: Impatiens glandulifera 10.
- Photo: Impatiens glandulifera 11.
- Photo: Impatiens glandulifera 2.
- Photo: Impatiens glandulifera 3.
- Photo: Impatiens glandulifera 4.
- Photo: Impatiens glandulifera 5.
- Photo: Impatiens glandulifera 6.
- Photo: Impatiens glandulifera 7.
- Photo: Impatiens glandulifera 8.
- Photo: Impatiens glandulifera 9.
- Photo: Impatiens glandulifera.
- Photo: Impatiens niamniamensis 1.
- Photo: Impatiens niamniamensis 2.
- Photo: Impatiens niamniamensis.
- Photo: Impatiens parviflora 1.
- Photo: Impatiens parviflora 4.
- Photo: Impatiens parviflora.
- Photo: Impatiens zombensis 1.
- Photo: Impatiens zombensis.
- Photo: Incarvillea delavayi 1.
- Photo: Incarvillea delavayi.
- Photo: Indigofera heterantha 1.
- Photo: Indigofera heterantha.
- Photo: Indigofera tinctoria.
- Photo: Inula 1.
- Photo: Inula 2.
- Photo: Inula helenium 1.
- Photo: Inula helenium 10.
- Photo: Inula helenium 11.
- Photo: Inula helenium 12.
- Photo: Inula helenium 13.
- Photo: Inula helenium 14.
- Photo: Inula helenium 15.
- Photo: Inula helenium 16.
- Photo: Inula helenium 17.
- Photo: Inula helenium 18.
- Photo: Inula helenium 19.
- Photo: Inula helenium 2.
- Photo: Inula helenium 3.
- Photo: Inula helenium 4.
- Photo: Inula helenium 5.
- Photo: Inula helenium 6.
- Photo: Inula helenium 7.
- Photo: Inula helenium 8.
- Photo: Inula helenium 9.
- Photo: Inula helenium.
- Photo: Inula.
- Photo: Iochroma australe 1.
- Photo: Iochroma australe.
- Photo: Iochroma calycinum 1.
- Photo: Iochroma calycinum.
- Photo: Ipomoea batatas 1.
- Photo: Ipomoea batatas 2.
- Photo: Ipomoea batatas 3.
- Photo: Ipomoea batatas 4.
- Photo: Ipomoea batatas.
- Photo: Ipomoea carnea.
- Photo: Ipomoea lobata 1.
- Photo: Ipomoea lobata 2.
- Photo: Ipomoea lobata.
- Photo: Ipomoea purpurea 1.
- Photo: Ipomoea purpurea 2.
- Photo: Ipomoea purpurea 3.
- Photo: Ipomoea purpurea 4.
- Photo: Ipomoea purpurea 5.
- Photo: Ipomoea purpurea.
- Photo: Ipomoea tricolor 1.
- Photo: Ipomoea tricolor 2.
- Photo: Ipomoea tricolor 3.
- Photo: Ipomoea tricolor 4.
- Photo: Ipomoea tricolor 5.
- Photo: Ipomoea tricolor 6.
- Photo: Ipomoea tricolor.
- Photo: Ipomoea x multifida 1.
- Photo: Ipomoea x multifida 2.
- Photo: Ipomoea x multifida.
- Photo: Iris 1.
- Photo: Iris 2.
- Photo: Iris 3.
- Photo: Iris 4.
- Photo: Iris 5.
- Photo: Iris 6.
- Photo: Iris 7.
- Photo: Iris danfordiae 1.
- Photo: Iris danfordiae 2.
- Photo: Iris danfordiae 3.
- Photo: Iris danfordiae 4.
- Photo: Iris danfordiae 5.
- Photo: Iris danfordiae 6.
- Photo: Iris danfordiae 7.
- Photo: Iris danfordiae 8.
- Photo: Iris danfordiae 9.
- Photo: Iris danfordiae.
- Photo: Iris ensata 1.
- Photo: Iris ensata.
- Photo: Iris latifolia 1.
- Photo: Iris latifolia.
- Photo: Iris missouriensis 1.
- Photo: Iris missouriensis.
- Photo: Iris pseudacorus 1.
- Photo: Iris pseudacorus 2.
- Photo: Iris pseudacorus 3.
- Photo: Iris pseudacorus 4.
- Photo: Iris pseudacorus 5.
- Photo: Iris pseudacorus 6.
- Photo: Iris pseudacorus.
- Photo: Iris reticulata 2.
- Photo: Iris reticulata 3.
- Photo: Iris reticulata 4.
- Photo: Iris reticulata 5.
- Photo: Iris reticulata 6.
- Photo: Iris reticulata.
- Photo: Iris sibirica 1.
- Photo: Iris sibirica.
- Photo: Iris variegata 1.
- Photo: Iris variegata 2.
- Photo: Iris variegata 3.
- Photo: Iris variegata.
- Photo: Iris x germanica 1.
- Photo: Iris x germanica 2.
- Photo: Iris x germanica 3.
- Photo: Iris x germanica 4.
- Photo: Iris x germanica 5.
- Photo: Iris x germanica 6.
- Photo: Iris x germanica.
- Photo: Iris.
- Photo: Isatis tinctoria 1.
- Photo: Isatis tinctoria 10.
- Photo: Isatis tinctoria 11.
- Photo: Isatis tinctoria 2.
- Photo: Isatis tinctoria 3.
- Photo: Isatis tinctoria 4.
- Photo: Isatis tinctoria 5.
- Photo: Isatis tinctoria 6.
- Photo: Isatis tinctoria 7.
- Photo: Isatis tinctoria 8.
- Photo: Isatis tinctoria 9.
- Photo: Isatis tinctoria.
- Photo: Isodon excisus 1.
- Photo: Isodon excisus 2.
- Photo: Isodon excisus.
- Photo: Isodon trichocarpus 1.
- Photo: Isodon trichocarpus 2.
- Photo: Isodon trichocarpus.
- Photo: Iva xanthifolia 1.
- Photo: Iva xanthifolia.
- Photo: Ixora coccinea 1.
- Photo: Ixora coccinea 2.
- Photo: Ixora coccinea 3.
- Photo: Ixora coccinea.
I
The Is.