Isatis tinctoria
Woad
Ixora chinensis
Chinese Ixora
Jacobaea aquatica
Marsh Ragwort
Jacobaea vulgaris
Common Ragwort
Jacobaea x ostenfeldii
Jasione montana
Sheep's-bit
Jasminum nudiflorum
Winter Jasmine
Jatropha gossypiifolia
Bellyache Bush
Jatropha integerrima
Jatropha podagrica
Gout-plant
Juglans regia
Walnut
Justicia brandegeeana
Shrimp Plant
Justicia croceochlamys
Water-willow
Justicia fulvicoma
Mexican Plume
Kalanchoe crenata
Mother of Millions
Kalanchoe daigremontiana
Mother of Thousands
Kickxia elatine
Sharp-leaved Fluellen
Kleinhovia hospita
Guest Tree
Knautia arvensis
Field Scabious
Knautia dipsacifolia
Wood Scabious
Koenigia polystachya
Himalayan Knotweed
Kunzea baxteri
Scarlet Kunzea
Laburnum anagyroides
Laburnum
Laburnum x watereri
Hybrid Laburnum