Daffodil
Dahlia
Dahoon
Daisy
Dakota Mock Vervain
Dallisgrass
Dandelion
Darkgreen Sedge
Darlington Oak
Darnel Ryegrass
Dasistoma
Dawnflower
Dayflower
Daylily
Deadnettle
Deathcamas
Decodon
Decumaria
Deepwoods Horsebalm
Deerberry
Deertongue
Delta Arrowhead
Delta Bulrush
Dense Blazing Star
Dense-spike Blackroot
Denseflower Knotweed
Densetuft Hairsedge
Deptford Pink
Desert Goosefoot
Desert Horsepurslane
Desert Lovegrass
Desert-chicory
Desert-thorn
Devilwood
Diamond-flowers
Diamondflowers
Didiplis
Dioclea
Diospyros
Disc Mayweed
Disk Waterhyssop
Ditch Fimbry
Ditch Stonecrop
Divine Nightshade