Ranunculus repens (creeping buttercup)

Ludwigia brevipes (Long Beach primrose-willow)
Ludwigia decurrens (wingleaf primrose-willow)
Ludwigia glandulosa (cylindricfruit primrose-willow)
Ludwigia linearis (narrowleaf primrose-willow)
Ludwigia palustris (marsh seedbox)
Ludwigia peploides ssp. glabrescens (floating primrose-willo
Ludwigia polycarpa (manyfruit primrose-willow)
Ludwigia sphaerocarpa (globefruit primrose-willow)
Lunaria rediviva
Luxembourg
Luzula acuminata ssp. carolinae (Carolina woodrush)
Luzula arctica ssp. arctica (arctic woodrush)
Luzula campestris
Luzula campestris (field woodrush)
Luzula luzuloides
Luzula parviflora (smallflowered woodrush)
Luzula pilosa
Luzula spicata (spiked woodrush)
Luzula sylvatica
Lychnis chalcedonica
Lychnis flos-cuculi
Lycium barbarum (matrimony vine)
Lycogala epidendrum
Lycopersicon esculentum
Lycopodiella alopecuroides (foxtail clubmoss)
Lycopodiella appressa (southern bog clubmoss)
Lycopodiella caroliniana var. caroliniana (slender clubmoss)
Lycopodiella inundata (inundated clubmoss)
Lycopodium annotinum (stiff clubmoss)

Image of Ranunculus repens (creeping buttercup) 1
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. Vol. 2: 113.