List of flora of Arkansas
Geobotanically, Arkansas belongs to the North American Atlantic Region.
Rare Species
A
- Amorpha ouachitensis - Ouachita leadplant
 - Amorpha paniculata - Panicled indigobush
 - Amsonia hubrichtii - Ouachita blue star
 - Astragalus soxmaniorum - Soxmans' milk-vetch
 
B
C

- Calamagrostis porteri ssp. insperata - Ofer hollow reed grass
 - Calamovilfa arcuata - A sandgrass
 - Carex decomposita - Epiphytic sedge
 - Carex latebracteata - Waterfall's sedge
 - Carex shinnersii - Shinner's sedge
 - Carex timida - A sedge
 - Castanea pumila var. ozarkensis - Ozark chinquapin
 - Chelone obliqua var. speciosa - Rose turtlehead
 - Cunila origanoides - American dittany, mountain oregano
 - Cyperus grayoides - Umbrella sedge
 - Cypripedium kentuckiense - Southern lady's-slipper
 
D
- Delphinium newtonianum - Moore's larkspur
 - Delphinium treleasei - Trelease's larkspur
 - Dodecatheon frenchii - French's shootingstar
 - Draba aprica - Open-ground whitlow-grass
 - Datura
 
E
- Echinacea paradoxa - Bush's yellow coneflower
 - Echinacea sanguinea - A coneflower
 - Eriocaulon koernickianum - Dwarf pipewort
 
F
- Fothergilla major - Witch-alder
 
G
- Galium arkansanum - A bedstraw
 
H

- Hamamelis vernalis - Ozark Witch Hazel
 - Harperella nodosa (syn. Ptilimnium nodosum) - Harperella
 - Helianthus occidentalis ssp. plantagineus - Shinner's sunflower
 - Heuchera villosa var. arkansana - Arkansas alumroot
 - Houstonia ouachitana - Ouachita bluet
 - Hydrophyllum brownei - Browne's waterleaf
 
I
J
K
L

- Leitneria floridana - Corkwood
 - Liatris squarrosa var. compacta - A blazing star
 - Lobelia siphilitica - Great Blue Lobelia
 - Lysimachia quadriflora
 
M
- Mespilus canescens - Stern's medlar
 - Minuartia godfreyi - Godfrey's sandwort
 
N
- Neviusia alabamensis - Alabama snow-wreath
 
O
- Oenothera heterophylla ssp. orientalis - An evening primrose
 - Oenothera pilosella ssp. sessilis - Prairie evening primrose
 
P
- Polymnia cossatotensis - Cossatot leafcup
 
Q
- Quercus acerifolia - Maple-leaved oak
 - Quercus arkansana - Arkansas oak
 
R
S
- Schisandra glabra - Climbing magnolia
 - Schoenolirion wrightii - Texas sunnybell
 - Scutellaria bushii - Bush's skullcap
 - Silene ovata - Ovate-leaf catchfly
 - Silene regia - Royal catchfly
 - Solidago ouachitensis - Ouachita goldenrod
 - Streptanthus maculatus ssp. obtusifolius - A twistflower
 - Streptanthus squamiformis - A twistflower
 
T
- Thalictrum arkansanum - Arkansas meadow-rue
 - Tradescantia longipes - Dwarf spiderwort
 - Tradescantia ozarkana - Ozark spiderwort
 - Trillium pusillum var. ozarkanum - Ozark least trillium
 - Trillium viridescens - Ozark trillium
 
U
V

- Valerianella nuttallii - Nuttall corn-salad
 - Valerianella palmeri - Palmer's corn-salad
 - Valerianella ozarkana - Ozark corn-salad
 - Vernonia arkansana - Arkansas ironweed
 - Vernonia lettermannii - Narrowleaf ironweed
 
W
X
Y
Z
Common Trees
- Pinus echinata - Shortleaf Pine
 - Other Pinus species also common
 - Juglans nigra - Black Walnut
 - Carya ovata - Shagbark Hickory
 - Other Carya species also common
 - Betula nigra - River Birch
 - Quercus alba - White Oak
 - Other Quercus species also common
 - Sassafras albidum - Sassafras
 - Liquidambar styraciflua - Sweetgum
 - Platanus occidentalis - American Sycamore
 - Malus sylvestris - Common Apple (Arkansas State Flower is the Apple Blossom)
 - Acer negundo - Box Elder
 - Acer species - Maples
 - Cornus florida - Flowering Dogwood
 - Juniperus virginiana - Eastern Redcedar
 - Rhus glabra - Smooth Sumac
 - Other Rhus species also common
 - Diospyros virginiana - American Persimmon
 - Prunus serotina - Black Cherry
 - Prunus virginiana - Chokecherry
 - Prunus americana - Wild Plum
 - Other Prunus species also common
 - Ulmus alata - Winged Elm
 - Ulmus americana - American Elm
 - Other Ulmus species also common
 - Salix nigra - Black Willow
 
Common Shrubs
- Euonymus - Euonymus, Marble Queen
 - Rubus species - Brambles, Blackberries, Dewberries
 - Rhus species - Sumacs
 - Rosa species - Wild roses
 - Sambucus species - Elderberries