Lupinus arbustus Lupinus polyphyllus
Lupinus polyphyllus 'My Castle' Lupinus polyphyllus 'Popsicle'
Lupinus polyphyllus 'Russell Hybrid' Lupinus polyphyllus 'The Governor'
Lupinus texensis Lycium andersonii
Lycium carolinianum Lycium fremontii
Lycopodium digitatum Lyonia lucida
Lyonothamnus floribundus var. aspleniifolius Lysichiton americanum
Lysiloma latisiliqua Lysiloma microphylla var. thornberi
Lysimachia ciliata Lysimachia ciliata 'Purpurea'
Lysimachia lysii Lysimachia nummularia 'Aurea'
Machaeranthera orcuttii Maclura pomifera
Maclura pomifera 'Double O' Magnolia acuminata
Magnolia acuminata var. subcordata Magnolia ashei
Magnolia fraseri Magnolia grandiflora
Magnolia grandiflora 'Alta®' Magnolia grandiflora 'Altius™'
Magnolia grandiflora 'Baby Doll' Magnolia grandiflora 'Bracken's Brown Beauty'
Magnolia grandiflora 'Claudia Wannamaker' Magnolia grandiflora 'D.D. Blanchard'
Magnolia grandiflora 'Dearing Street' Magnolia grandiflora 'Edith Bogue'
Magnolia grandiflora 'Exmouth' Magnolia grandiflora 'Exonensis'
Magnolia grandiflora 'Greenback™' Magnolia grandiflora 'Hasse'
Magnolia grandiflora 'Little Gem' Magnolia grandiflora 'Miss Chloe®'
Magnolia grandiflora 'Monlia (Majestic Beauty™)' Magnolia grandiflora 'Phyllis Barrow'
Magnolia grandiflora 'Plantation' Magnolia grandiflora 'Russet'
Magnolia grandiflora 'Saint Mary' Magnolia grandiflora 'Samuel Sommer'
Magnolia grandiflora 'Satinleaf' Magnolia grandiflora 'Select III'
Magnolia grandiflora 'Symmes' Magnolia grandiflora 'Variegata'
Magnolia grandiflora 'Victoria' Magnolia grandiflora X M. virginiana 'Freeman'
Magnolia macrophylla Magnolia tripetala
Magnolia virginiana Magnolia virginiana 'Henry Hicks'
Magnolia virginiana 'Moonglow' Magnolia virginiana 'Santa Rosa'
Mahonia x 'Skylark' Mahonia aquifolium
Mahonia aquifolium 'Apollo' Mahonia aquifolium 'Compactum'
Mahonia nevinii Mahonia pinnata
Mahonia repens Maianthemum racemosum
Mallotonia gnaphalodes Malpighia glabra
Malpighia glabra 'Fairchild' Malus angustifolia
Malus ioensis Malvaviscus arboreus
Mammillaria bocasana Mammillaria bombycina
Mammillaria compressa Mammillaria dioica
Mammillaria elongata Mammillaria geminispina
Mammillaria hertrichiana Mammillaria longimamma
Mammillaria muehlenpfordtii Mammillaria mystax
Mammillaria parkinsonii Mammillaria plumosa
Mammillaria polythele Mammillaria pringlei
Mammillaria scrippsiana Manilkara bahamensis
Manilkara zapota Mascagnia macroptera
Mastichodendron foetidissimum Matteuccia struthiopteris
Maytenus phyllanthoides Melampodium leucanthum
Melampodium paludosum 'Medallion' Melampodium paludosum 'Showstar'
Mentzelia lindleyi Menyanthes trifoliolata