Common Name - -	Family : Order
Lady Denison vanda - -	Orchidaceae : Asparagales
Lady of the night - -	Orchidaceae : Asparagales
Lady of the night - -	Solanaceae : Solanales
Lanceleaf moonpod - -	Nyctaginaceae : Caryophyllales
Langsdorff's tobacco - -	Solanaceae : Solanales
Large leaved rock fig - -	Moraceae : Rosales
Large yellow lady's slipper - -	Orchidaceae : Asparagales
Large-flowered calamint - -	Lamiaceae : Lamiales
Large-leaved linden - -	Malvaceae : Malvales
Large-lipped catasetum - -	Orchidaceae : Asparagales
Late-flowering narcissus - -	Amaryllidaceae : Asparagales
Laurel - -	Lauraceae : Laurales
Lavender cotton - -	Asteraceae : Asterales
Lemon - -	Rutaceae : Sapindales
Lesser butterfly-orchid - -	Orchidaceae : Asparagales
Lilac sage - -	Lamiaceae : Lamiales
Lily of the valley - -	Ruscaceae : Asparagales
Lily of the valley orchid - -	Orchidaceae : Asparagales
Lilytree - -	Magnoliaceae : Magnoliales
Littleleaf moonpod - -	Nyctaginaceae : Caryophyllales
Lizard orchid - -	Orchidaceae : Asparagales
Locust - -	Orchidaceae : Asparagales
Longflower tobacco - -	Solanaceae : Solanales
Lopsided star orchid - -	Orchidaceae : Asparagales
Lustrous black catasetum - -	Orchidaceae : Asparagales
Lyrate rockcress - -	Brassicaceae : Brassicales