Justicia adhatoda Justicia americana
Justicia brandegeana Justicia brandegeana 'Variegata'
Justicia californica Justicia carnea
Justicia spicigera Juttadinteria albata
Kadsura japonica 'Chirimen' Kaempferia
Kaempferia 'Alva' Kaempferia 'Grande'
Kaempferia 'Raven' Kaempferia galanga
Kaempferia laotica 'Satin Checks' Kaempferia laotica 'Shazam'
Kaempferia pulchra Kaempferia pulchra 'Silver Spot'
Kaempferia rotunda Kalanchoe beharensis
Kalanchoe beharensis 'Oak Leaf' Kalanchoe blossfeldiana
Kalanchoe daigremontiana Kalanchoe delagonensis
Kalanchoe fedtschenkoi Kalanchoe gastonis bonnieri
Kalanchoe luciae Kalanchoe manginii
Kalanchoe millottii Kalanchoe orygalis
Kalanchoe pinnata Kalanchoe rhombopilosa
Kalanchoe rosei var. seyrigii Kalanchoe thyrsiflora
Kalanchoe tomentosa Kalimeris x 'Shogun'
Kalimeris incisa Kalimeris mongolica
Kalimeris pinnatifida Kalimeris pinnatifida 'Hortensis'
Kalimeris yomena 'Aurea' Kalmia 'Red Bandit'
Kalmia angustifolia 'Hammonasset' Kalmia angustifolia 'Royal Dwarf'
Kalmia latifolia Kalmia latifolia 'Alba'
Kalmia latifolia 'Big Boy' Kalmia latifolia 'Bullseye'
Kalmia latifolia 'Carousel' Kalmia latifolia 'Elf'
Kalmia latifolia 'Freckles' Kalmia latifolia 'Heart of Fire'
Kalmia latifolia 'Heart's Desire' Kalmia latifolia 'Keepsake'
Kalmia latifolia 'Little Linda' Kalmia latifolia 'Meteor'
Kalmia latifolia 'Minuet' Kalmia latifolia 'Olympic Fire'
Kalmia latifolia 'Olympic Wedding' Kalmia latifolia 'Ostbo Red'
Kalmia latifolia 'Paul Bosley' Kalmia latifolia 'Peppermint'
Kalmia latifolia 'Pink Surprise' Kalmia latifolia 'Raspberry Glow'
Kalmia latifolia 'Star Cluster' Kalopanax septemlobus
Kerria japonica Kerria japonica 'Albaflora'
Kerria japonica 'Aureovitla' Kerria japonica 'Golden Guinea'
Kerria japonica 'Picta' Kerria japonica 'Pleniflora'
Kerria japonica 'Shannon' Kigelia africana
Kirengeshoma x Kirengeshoma palmata
Kleinia fulgens Knautia macedonica
Knautia macedonica 'Jesse' Kniphofia 'Alcazar'
Kniphofia 'Bee's Sunset' Kniphofia 'Cobra'
Kniphofia 'Gilt Bronze' Kniphofia 'Little Maid'
Kniphofia 'Parmentier' Kniphofia 'Royal Standard'
Kniphofia 'Shining Sceptre' Kniphofia thompsonii
Kniphofia uvaria Kniphofia uvaria 'Early Hybrids'
Kniphofia uvaria 'Flamenco' Kniphofia uvaria 'Flava'
Kniphofia uvaria 'Lola' Kniphofia uvaria 'Pfitzeri'
Kniphofia uvaria 'Primrose Beauty' Kniphofia uvaria 'Springtime'
Koeleria argentea Koeleria glauca