| Iban Eggplant |
Solanum ferox - a |
| Iberian Pear |
Pyrus bourgaeana - e |
| Ice Cream Bean |
Inga edulis - s |
| Iceland Poppy |
Papaver
nudicaule - e, f, o |
| Idrija Primrose |
Primula venusta - e |
| Ilama |
Annona
diversifolia - n |
| Illyrian gladiolus |
Gladiolus illyricus - e |
| Imbricate Hexisea |
Hexisia imbricata - n |
| Impala Lily |
Adenium multiflorum - e, f, o |
| Imperforate St John's-wort |
Hypericum maculatum - c |
| Imperial Cap |
Catathelasma imperiale - e, f, n |
| Imperial Hoya |
Hoya imperialis - a |
| Imperial Vanilla |
Vanilla imperialis - f |
| India Rubber Tree |
Ficus elastica - a, f |
| India Red Water-lily |
Nymphaea rubra - a, n |
| Indian Asparagus |
Asparagus racemosus - a |
| Indian Azalea |
Rhododendron
simsii - a, e, o |
| Indian Coralbean |
Erythrina
variegata - a, n, o |
| Indian Coral Tree |
Erythrina bidwilli - a |
| Indian Cress |
Tropaeolum
majus - a, с, e, f, n, s |
| Indian Fig |
Opuntia
ficus-indica - a, e, f, n, o, s |
| Indian Gooseberry |
Emblica
officinalis - a |
| Indian Hawthorn |
Rhaphiolepis indica - a |
| Indian Jujube |
Zizyphus
mauritiana - a, f, n |
| Indian Kidney Tea |
Orthosyphon
stamineus - a, c |
| Indian Laburnum |
Cassia fistula
- a, f o, n, s |
| Indian Liquorice |
Abrus precatorius |
| Indian Mahogany |
Chukrasia tabularis - a |
| Indian Mulberry |
Morinda
citrifolia - a, n, o, s |
| Indian Oak |
Barringtonia acutangula - a |
| Indian Paintbrush |
Castilleja
linariaefolia - n |
| Indian Pink |
Silene californica - n |
| Indian Pipe |
Monotropa uniflora - f |
| India Red Water-lily |
Nymphaea rubra - a, n, o |
| Indian Shot |
Canna indica - a, c,
f, n, o |
| Indian Tulip Tree |
Thespesia
populnea - a, n, o |
| Indigo Bolete |
Gyroporus cyanoscens - a, c, e, f |
| Indigo Milky |
Lactarius indigo - f, n, s |
| Indonesian Cinnamon |
Cinnamomum burmanii - a |
| Ink-berry |
Phytolacca
sp. - f, n |
| Ink Cap |
Coprinus
picaceus - f, n, s |
| Insect-Bearing Pelatanthera |
Pelatantheria
insectifera - a |
| Insigne Lady's Slipper |
Cypripedium
insigne - f, s |
| Insleay's Rossioglossum |
Odontoglossum insleayi - f, s |
| Iris of Sofar |
Iris sofarana - a |
| Irish Dusk |
Erica erigena - e |
| Irish Lady's Tresses |
Spiranthes
romanzoffiana - e, n |
| Irish Whitebeam |
Sorbus hibernica - e |
| Irish Willow |
Salix hibernica - e |
| Ironweed |
Vernonia
sp. - f |
| Ironwood |
Casuarina
equisetifolia - f, o |
| |
Chionanthus
caymanesis - n |
| Ironwort |
Siderites raeseri - e |
| Island Cape Myrtle |
Phylica arborea - a, o |
| Island Lychee |
Pometia pinnata
- a, o |
| Israeli Babool |
Acacia raddiana
- f |
| Istrian Bluebell |
Campanula
istriaca - e |
| Italian Arum |
Arum italicum - e |
| Italian Aster |
Aster amfellus
- a, e, f |
| Italian Cypress |
Cupressus
sempervirens - a, e |
| Italian Leather Flower |
Clematis viticella
- f |
| Ivory Funnel |
Clitocybe dealbata - e, f |
| Ivory Waxy Cap |
Hygrophorus eburneus - f |
| Ivy Geranium |
Pelargonium peltatum
- e |
| Ivy Leaved Bell Flower |
Wahlenbergia hederacea - e |
| Ivy-leaved Morning Glory |
Ipomoea hederacea - n |