'Lawsoniana' Holly: altaclarensishybrid Lawson's Cypress (spp.)
Lawson's Cypress 'Aurea Densa' Lawson's Cypress 'Columnaris'
Lawson's Cypress 'Erecta' Lawson's Cypress 'Fletcheri'
Lawson's Cypress 'Globosa Nana' Lawson's Cypress Golden
Lawson's Cypress Golden Lawson's Cypress 'Green Pillar'
Lawson's Cypress 'Intertexta' Lawson's Cypress 'Lane'
Lawson's Cypress 'Lane's Aurea' Lawson's Cypress 'Minima Aurea'
Lawson's Cypress 'Pembury Blue' Lawson's Cypress 'Pottenii'
Lawson's Cypress 'Triomf van Boskoop' Lawson's Cypress 'Wisselii'
Lawson's Cypress 'Yvonne' 'Laxa' Common Juniper
Leadtree Leadtree, Goldenball
Leadtree, Littleleaf Leadwood
Leather Leaf Acacia Leather Oak
Leatherwood 'Legacy' Sugar Maple
Leichhardt Tree Lemon Bottlebrush (spp.)
Lemon Guava Lemon Scented Eucalyptus
Lemon Scented Gum Lemon (spp.)
Lemon 'Eureka' Lemonade Berry
Lemon-flowered Gum Lemon-scented Tea Tree (spp.)
Lemon-scented Tea Tree 'White Swan' 'Lennei Alba' Saucer Magnolia: soulangianahybrid
'Lennei' Saucer Magnolia: soulangianahybrid 'Leonard Messel' Loebner Magnolia
'Leonard Messel' Magnolia 'Leonard Russell' Star Magnolia
Leucaena, Littleleaf Levantine Live Oak
Leyland Cypress (spp.) Leyland Cypress 'Golconda'
Leyland Cypress 'Haggerston Gray' 'Liberty' American Elm
'Liberty' London Planetree Licuri Palm
Lightwood Wattle Lignum Vitae: officinale
Lignum Vitae: sanctum Ligustrum, Japanese (spp.)
Ligustrum, Tree (spp.) Ligustrum, Tree 'Excelsum Superbun'
Ligustrum, Tree 'Tricolor' Ligustrum, Waxleaf (spp.)
'Likelight' Deodar Cedar Lilac, Japanese Tree (spp.)
Lilac, Japanese Tree 'Ivory Silk' Lilac, Japanese Tree 'Summer Snow'
Lilac, Pekin (spp.) Lilac, Pekin 'China Snow®'
Lilac, Pekin Weeping Lilac, West Indian
Lillypilly, Small-leaved Lilly-Pilly, Weeping
Limber Pine (spp.) Limber Pine Blue
Lime Prickley Ash Lime, Henry's
Lime, Small-leaved (spp.) Lime, Small-leaved 'Chancellor'
Lime, Small-leaved 'Crimean' Lime, Small-leaved 'Glenleven'
Lime, Small-leaved 'Greenspire' Lime, Small-leaved 'June Bride'
Lime, Small-leaved 'Olympic' Lime, Small-leaved 'Rancho'
Lime, Small-leaved 'Truesi' Lime, Spanish
'Limelight' Corn Plant