Illicium anisatum Illicium floridanum
Illicium floridanum 'Haley's Comet' Illicium floridanum var. alba
Illicium henryi Illicium parviflorum
Impatiens x 'Bright Eye' Impatiens x 'Seashells'
Impatiens 'Blondie' Impatiens 'Camellia Blackberry Trifle'
Impatiens 'Jungle Gold' Impatiens 'Orange Pinwheel Gem'
Impatiens auricoma Impatiens auricoma 'Blondie'
Impatiens auriculata Impatiens balfourii
Impatiens balsamina Impatiens balsamina 'Blackberry Trifle'
Impatiens balsamina 'Fusion™' Impatiens flaccida
Impatiens x hawkeri Impatiens x hawkeri 'Celebrette Light Coral'
Impatiens x hawkeri 'Colorpower Purple Flame' Impatiens x hawkeri 'New Guinea'
Impatiens x hawkeri 'Pure Beauty Fuchsia' Impatiens kilamanjarensis
Impatiens namchabarwensis Impatiens oneiana
Impatiens repens Impatiens tinctoria
Impatiens walleriana Impatiens walleriana 'BALFIEPURP (Rockapulco® Purple)'
Impatiens walleriana 'Balpapina (Patchwork Pink Shades)' Impatiens walleriana 'Blackberry Ice'
Impatiens walleriana 'Blitz 2000 Red' Impatiens walleriana 'Candy® Coral Bee'
Impatiens walleriana 'Candy® Deep Salmon' Impatiens walleriana 'Candy® Mix'
Impatiens walleriana 'Candy® Rose Star' Impatiens walleriana 'Center Stage'
Impatiens walleriana 'Fiesta™ Lavender Orchid' Impatiens walleriana 'Firefly'
Impatiens walleriana 'Lavender Orchid (Rockapulco® Orchid)' Impatiens walleriana 'Patchwork Cosmic Burgundy'
Impatiens walleriana 'Patchwork Cosmic Orange' Impatiens walleriana 'Rose Parade'
Impatiens walleriana 'Rosette' Impatiens walleriana 'Show Stopper'
Impatiens walleriana 'Stardust Salmon' Impatiens walleriana 'Super Elfin Orange'
Impatiens walleriana 'Super Elfin Swirl' Impatiens walleriana 'Victorian Rose'
Imperata cylindrica 'Red Baron' Incarvillea arguta
Incarvillea delavayi Incarvillea delavayi 'Snowtop'
Indigofera amblyantha Indigofera decora
Indigofera decora 'Alba' Indigofera heterantha
Indigofera kirilowii Indigofera nigrescens
Indigofera pseudotinctoria Indigofera pseudotinctoria 'Rose Carpet'
Indocalamus tessellatus Inga laurina
Ingartia ravelo-sucre Inula helenium
Inula magnifica Inula salicina
Iochroma cyanea Iochroma grandiflora
Ipheion peduncularis Ipheion uniflorum
Ipheion uniflorum 'Rolf Fiedler' Ipheion uniflorum 'Wisley Blue'
Ipomoea 'Good Morning Series' Ipomoea alba
Ipomoea andersonii Ipomoea aquatica
Ipomoea batatas Ipomoea batatas 'Blackie'
Ipomoea batatas 'Margarita' Ipomoea batatas 'number 99'
Ipomoea batatas 'Pink Frost' Ipomoea batatas 'Sulfur'
Ipomoea batatas 'Sweet Caroline Bright Green' Ipomoea batatas 'Sweet Caroline Bronze'
Ipomoea batatas 'Sweet Caroline Guacamole' Ipomoea batatas 'Sweet Caroline Light Green'
Ipomoea batatas 'Sweet Caroline Purple' Ipomoea batatas 'Sweet Caroline Sweet Heart Light Green'
Ipomoea batatas 'Sweet Caroline Sweet Heart Red' Ipomoea batatas 'Sweet Georgia Heart Red'
Ipomoea batatas 'Tricolor' Ipomoea carnea ssp. fistulosa
Ipomoea coccinea Ipomoea hederacea 'Roman Candy'
Ipomoea horsfalliae Ipomoea x imperialis 'Cameo Elegance'
Ipomoea lobata Ipomoea lobata 'Citronella'
Ipomoea x multifida Ipomoea nil 'Hanafubuki'
Ipomoea nil 'Variegata' Ipomoea pandurata
Ipomoea pes-caprae Ipomoea purpurea
Ipomoea purpurea 'Split Personality' Ipomoea quamoclit
Ipomoea sagittata Ipomoea stolonifera
Ipomoea tricolor Ipomoea tricolor 'Crimson Rambler'
Ipomoea tricolor 'Early Call' Ipomoea tricolor 'Flying Saucers'
Ipomoea tricolor 'Heavenly Blue' Ipomoea tricolor 'Pearly Gates'
Ipomoea tricolor 'Tie Dye' Ipomoea tricolor 'Variegata'
Ipomoea wrightii Iresine herbstii
Iresine herbstii 'Aureo-reticulata' Iresine lindenii