Hibiscus tiliaceus
Sea Hibiscus
Hippeastrum puniceum
Amaryllis Lily
Hippobroma longiflora
Star of Bethlehem
Holmskioldia sanguinea
Chinese Hat Plant
Homalomena rubescens
Shield Plant
Hopea ferrea
Malut
Hydrangea macrophylla
Hydrangea
Hydrocotyle vulgaris
Marsh Pennywort
Hymenocallis fragrans
Spider Lily
Hyophorbe lagenicaulis
Bottle Palm
Hyptis capitata
False Ironwort
Impatiens balsamina
Garden Balsam
Impatiens walleriana
Busy Lizzie
Imperata cylindrica
Cogon Grass
Indigofera hirsuta
Hairy Indigo
Indigofera suffruticosa
Guatemalan Indigo
Ipomoea aquatica
Water Spinach
Ipomoea batatas
Sweet Potato
Ipomoea carnea
Pink Morning Glory
Ipomoea hederacea
Ivy-leaved Morning Glory
Ipomoea obscura
Obscure Morning Glory
Ipomoea tricolor
Mexican Morning Glory
Ipomoea triloba
Aiea Morning Glory
Ixora chinensis
Chinese Ixora