Native plants · Louisiana

Native plants of St. Martin Parish

323 plant species are recorded as native to Louisiana in Kew’s World Checklist of Vascular Plants and USDA PLANTS, and recorded in St. Martin Parish by USDA PLANTS. 160 of them have growing records you can filter by light, moisture, height and estimated cold hardiness. 3 more species are listed as both native and introduced and kept in a separate section.

County summary · USDA PLANTS and Kew WCVP

St. Martin Parish, Louisiana

Native species: 323 Typical Louisiana county: 587 (median of 64 counties)
Garden-ready natives: 160 Typical Louisiana county: 271
Share by type (all 323 native species): Percent of the 323 native species in each growth type

Tree 15% (50)
Shrub 1% (4)
Wildflower (forb) 51% (164)
Grass or grass-like 20% (66)
Vine 11% (34)
Fern 2% (5)

Wildflowers make up the largest share of the native list (51%), followed by grasses and grass-like plants (20%).

Recorded native ranges can include long-established populations that spread from gardens; check your state’s native plant society list for local guidance. How native status is decided.

ZIP codes mainly in this county fall in USDA hardiness zone 9a (2023 map).

The native plant list

Garden-ready natives 160

Native species with PLANTS growing records (height, light, moisture, minimum temperature). “—” means PLANTS has no value.

Garden-ready native plants of St. Martin Parish, Louisiana
Plant	Type	Height	Light	Water use	Hardy to
American beautyberry Callicarpa americana	Shrub	6 ft	Sun–part shade	Low	Zone 6b
American elm Ulmus americana	Tree	120 ft	Sun–part shade	High	Zone 2b
American pokeweed Phytolacca americana	Wildflower (forb)	7.3 ft	Shade-tolerant	Medium	Zone 4a
American snowbell Styrax americanus	Tree	10 ft	Sun–part shade	—	Zone 5b
American spongeplant Limnobium spongia	Wildflower (forb)	6 in	Sun	High	Zone 5a
American sycamore Platanus occidentalis	Tree	100 ft	Sun–part shade	High	Zone 4a
American water horehound Lycopus americanus	Wildflower (forb)	1.8 ft	Shade-tolerant	High	Zone 3b
bald cypress Taxodium distichum	Tree	130 ft	Sun–part shade	High	Zone 5b
black cherry Prunus serotina	Tree	80 ft	Sun	Medium	Zone 4a
black walnut Juglans nigra	Tree	100 ft	Sun	High	Zone 4b
black willow Salix nigra	Tree	100 ft	Sun	High	Zone 1b
blue mistflower Conoclinium coelestinum	Wildflower (forb)	3.2 ft	Shade-tolerant	Medium	Zone 6a
blunt broom sedge Carex tribuloides	Grass or grass-like	3 ft	Shade-tolerant	Medium	Zone 4b
boxelder Acer negundo	Tree	60 ft	Shade-tolerant	Medium	Zone 2b
broadleaf arrowhead Sagittaria latifolia	Wildflower (forb)	4.9 ft	Sun	High	Zone 4a
broadleaf cattail Typha latifolia	Wildflower (forb)	5 ft	Sun–part shade	High	Zone 3b
broadleaf signalgrass Urochloa platyphylla	Grass or grass-like	3 ft	Sun	Medium	Zone 9a
bushy bluestem Andropogon glomeratus	Grass or grass-like	6.3 ft	Sun	High	Zone 5a
butterweed Packera glabella	Wildflower (forb)	3.2 ft	Sun	High	Zone 10b
Canada goldenrod Solidago altissima	Wildflower (forb)	5 ft	Sun–part shade	Medium	Zone 4b
Canadian horseweed Conyza canadensis	Wildflower (forb)	5 ft	Sun	Medium	Zone 12b
cardinalflower Lobelia cardinalis	Wildflower (forb)	5.9 ft	Shade-tolerant	Low	Zone 4a
Carolina ash Fraxinus caroliniana	Tree	39 ft	Shade-tolerant	High	Zone 7b
Carolina elephantsfoot Elephantopus carolinianus	Wildflower (forb)	2.7 ft	Sun	Medium	Zone 6a
Carolina fanwort Cabomba caroliniana	Wildflower (forb)	—	Sun–part shade	High	Zone 5a
Carolina foxtail Alopecurus carolinianus	Grass or grass-like	1.7 ft	Sun	Low	Zone 3a
catchfly grass Leersia lenticularis	Grass or grass-like	2.6 ft	Sun	Medium	Zone 4a
cedar elm Ulmus crassifolia	Tree	90 ft	Sun–part shade	Medium	Zone 6a
cherrybark oak Quercus pagoda	Tree	120 ft	Sun	Medium	Zone 6b
clasping coneflower Dracopis amplexicaulis	Wildflower (forb)	2 ft	Sun	High	Zone 10b
climbing hempvine Mikania scandens	Vine	1 ft	Shade-tolerant	Medium	Zone 3b
coast cockspur grass Echinochloa walteri	Grass or grass-like	6.5 ft	Sun	High	Zone 10b
common blue violet Viola sororia	Wildflower (forb)	4 in	Sun–part shade	High	Zone 4b
common buttonbush Cephalanthus occidentalis	Tree	15 ft	Shade-tolerant	High	Zone 4a
common evening primrose Oenothera biennis	Wildflower (forb)	5 ft	Sun	Medium	Zone 4b
common persimmon Diospyros virginiana	Tree	55 ft	Shade-tolerant	Medium	Zone 5a
common rush Juncus effusus	Grass or grass-like	6.6 ft	Sun	Medium	Zone 3b
common sneezeweed Helenium autumnale	Wildflower (forb)	4.9 ft	Sun	Medium	Zone 3a
coon's tail Ceratophyllum demersum	Wildflower (forb)	—	Sun–part shade	High	Zone 3b
copper iris Iris fulva	Wildflower (forb)	3.3 ft	Shade-tolerant	High	Zone 5a
crimsoneyed rosemallow Hibiscus moscheutos	Wildflower (forb)	6.6 ft	Sun	High	Zone 6a
cursed buttercup Ranunculus sceleratus	Wildflower (forb)	2 ft	Shade-tolerant	High	Zone 12b
cypressknee sedge Carex decomposita	Grass or grass-like	4.5 ft	Shade-tolerant	High	Zone 6a
delta arrowhead Sagittaria platyphylla	Wildflower (forb)	3 ft	Sun	High	Zone 6a
disk waterhyssop Bacopa rotundifolia	Wildflower (forb)	1 in	Sun	High	Zone 4a
ditch stonecrop Penthorum sedoides	Wildflower (forb)	2.6 ft	Sun–part shade	Medium	Zone 4b
dotted smartweed Polygonum punctatum	Wildflower (forb)	3.2 ft	Sun	Medium	Zone 10b
dwarf palmetto Sabal minor	Tree	9 ft	Shade-tolerant	High	Zone 8a
dwarf St. Johnswort Hypericum mutilum	Wildflower (forb)	2.6 ft	Sun–part shade	Medium	Zone 5a
eastern baccharis Baccharis halimifolia	Tree	10 ft	Sun–part shade	High	Zone 7a
eastern cottonwood Populus deltoides	Tree	190 ft	Sun	High	Zone 3a
eastern narrowleaf sedge Carex amphibola	Grass or grass-like	2 ft	Shade-tolerant	Medium	Zone 7a
eastern redcedar Juniperus virginiana	Tree	50 ft	Sun–part shade	Low	Zone 3a
eastern swampprivet Forestiera acuminata	Tree	33 ft	Shade-tolerant	High	Zone 5b
fall panicgrass Panicum dichotomiflorum	Grass or grass-like	3.3 ft	Sun	High	Zone 3a
false daisy Eclipta prostrata	Wildflower (forb)	3.2 ft	Sun–part shade	Medium	Zone 10b
field paspalum Paspalum laeve	Grass or grass-like	2.9 ft	Sun–part shade	Medium	Zone 6a
forked rush Juncus dichotomus	Grass or grass-like	2.9 ft	Sun–part shade	Medium	Zone 8b
fragrant flatsedge Cyperus odoratus	Grass or grass-like	2 ft	Sun	Medium	Zone 11b
frost grape Vitis vulpina	Vine	83 ft	Sun–part shade	Medium	Zone 5a
giant cutgrass Zizaniopsis miliacea	Grass or grass-like	9 ft	Sun	High	Zone 8b
golden tickseed Coreopsis tinctoria	Wildflower (forb)	3 ft	Sun–part shade	High	Zone 12b
grassleaf rush Juncus marginatus	Grass or grass-like	2 ft	Sun–part shade	Medium	Zone 5a
graybark grape Vitis cinerea	Vine	50 ft	Sun–part shade	Medium	Zone 6b
green ash Fraxinus pennsylvanica	Tree	80 ft	Shade-tolerant	Medium	Zone 2b
green hawthorn Crataegus viridis	Tree	30 ft	Sun	High	Zone 5a
groundnut Apios americana	Vine	1 ft	Shade-tolerant	Medium	Zone 5a
halberdleaf rosemallow Hibiscus laevis	Wildflower (forb)	8 ft	Sun–part shade	High	Zone 6a
haspan flatsedge Cyperus haspan	Grass or grass-like	3.2 ft	Sun	Medium	Zone 8a
heartleaf peppervine Ampelopsis cordata	Vine	2 ft	Shade-tolerant	Medium	Zone 6b
hilograss Paspalum conjugatum	Grass or grass-like	3 ft	Shade-tolerant	Medium	Zone 8b
honeylocust Gleditsia triacanthos	Tree	70 ft	Sun	Medium	Zone 3b
hop sedge Carex lupulina	Grass or grass-like	4.3 ft	Sun–part shade	Medium	Zone 3b
hophornbeam Ostrya virginiana	Tree	45 ft	Shade-tolerant	Low	Zone 3b
horsetail paspalum Paspalum fluitans	Grass or grass-like	2.5 ft	Sun–part shade	High	Zone 5a
Illinois bundleflower Desmanthus illinoensis	Wildflower (forb)	3 ft	Sun	Medium	Zone 5b
Indianhemp Apocynum cannabinum	Wildflower (forb)	3.3 ft	Sun–part shade	High	Zone 3a
knotgrass Paspalum distichum	Grass or grass-like	11 in	Sun	High	Zone 6a
laurel oak Quercus laurifolia	Tree	70 ft	Shade-tolerant	Medium	Zone 7a
little barley Hordeum pusillum	Grass or grass-like	1.2 ft	Sun	Medium	Zone 10b
little bluestem Schizachyrium scoparium	Grass or grass-like	3 ft	Sun	Low	Zone 3b
live oak Quercus virginiana	Tree	50 ft	Sun–part shade	Medium	Zone 8a
longleaf pondweed Potamogeton nodosus	Wildflower (forb)	—	Sun	High	Zone 3b
longspike tridens Tridens strictus	Grass or grass-like	4.9 ft	Sun–part shade	Low	Zone 2a
longtom Paspalum denticulatum	Grass or grass-like	2 ft	Sun–part shade	High	Zone 8b
manyspike flatsedge Cyperus polystachyos	Grass or grass-like	1.6 ft	Sun	Medium	Zone 12a
marsh flatsedge Cyperus pseudovegetus	Grass or grass-like	2.5 ft	Sun	High	Zone 8a
marsh seedbox Ludwigia palustris	Wildflower (forb)	2 in	Sun	High	Zone 4a
muscadine Vitis rotundifolia	Vine	30 ft	Sun–part shade	Medium	Zone 5b
nodding beggartick Bidens cernua	Wildflower (forb)	3.2 ft	Sun–part shade	High	Zone 12a
northern spicebush Lindera benzoin	Tree	12 ft	Sun–part shade	Medium	Zone 5a
Nuttall oak Quercus texana	Tree	110 ft	Sun	Medium	Zone 5b
oval-leaf sedge Carex cephalophora	Grass or grass-like	2.6 ft	Sun–part shade	Low	Zone 4a
overcup oak Quercus lyrata	Tree	80 ft	Sun–part shade	High	Zone 5a
partridge pea Chamaecrista fasciculata	Wildflower (forb)	2.4 ft	Shade-tolerant	Medium	Zone 7a
pawpaw Asimina triloba	Tree	25 ft	Shade-tolerant	Medium	Zone 4b
pecan Carya illinoinensis	Tree	120 ft	Sun	High	Zone 5a
Pennsylvania bittercress Cardamine pensylvanica	Wildflower (forb)	1.5 ft	Shade-tolerant	Medium	Zone 4a
Pennsylvania smartweed Polygonum pensylvanicum	Wildflower (forb)	3.9 ft	Sun	Medium	Zone 10b
peppervine Nekemias arborea	Vine	1 in	Shade-tolerant	Medium	Zone 6a
Philadelphia fleabane Erigeron philadelphicus	Wildflower (forb)	2.8 ft	Sun–part shade	Medium	Zone 4b
pickerelweed Pontederia cordata	Wildflower (forb)	3.2 ft	Sun	High	Zone 5a
planertree Planera aquatica	Tree	50 ft	Shade-tolerant	Medium	Zone 7a
possumhaw Ilex decidua	Tree	33 ft	Shade-tolerant	Medium	Zone 5b
poverty rush Juncus tenuis	Grass or grass-like	1.5 ft	Sun–part shade	Medium	Zone 3b
prairie wedgescale Sphenopholis obtusata	Grass or grass-like	3.2 ft	Sun–part shade	Medium	Zone 3a
purple lovegrass Eragrostis spectabilis	Grass or grass-like	11 in	Sun	Low	Zone 3a
rattlesnake fern Botrychium virginianum	Fern	1.4 ft	Shade-tolerant	Medium	Zone 3b
ravenfoot sedge Carex crus-corvi	Grass or grass-like	3 ft	Sun–part shade	Medium	Zone 4b
red maple Acer rubrum	Tree	68 ft	Sun–part shade	High	Zone 2b
red mulberry Morus rubra	Tree	70 ft	Shade-tolerant	Medium	Zone 4a
redroot flatsedge Cyperus erythrorhizos	Grass or grass-like	2.5 ft	Sun	Medium	Zone 11a
roughleaf dogwood Cornus drummondii	Tree	20 ft	Sun–part shade	Low	Zone 4b
roundleaf greenbrier Smilax rotundifolia	Vine	1 ft	Sun	Medium	Zone 4a
salt heliotrope Heliotropium curassavicum	Wildflower (forb)	1.2 ft	Sun	Medium	Zone 4b
sandbar willow Salix interior	Tree	30 ft	Sun	—	Zone 1a
sassafras Sassafras albidum	Tree	75 ft	Sun	Low	Zone 4b
saw greenbrier Smilax bona-nox	Vine	4 ft	Shade-tolerant	Medium	Zone 5b
sawtooth blackberry Rubus argutus	Shrub	8.2 ft	Sun	Medium	Zone 6a
sharpwing monkeyflower Mimulus alatus	Wildflower (forb)	2.3 ft	Shade-tolerant	High	Zone 5a
shortbristle horned beaksedge Rhynchospora corniculata	Grass or grass-like	6.6 ft	Sun	Medium	Zone 6a
slash pine Pinus elliottii	Tree	100 ft	Sun	Medium	Zone 5b
slippery elm Ulmus rubra	Tree	85 ft	Shade-tolerant	High	Zone 3a
small beggarticks Bidens discoidea	Wildflower (forb)	5.2 ft	Sun–part shade	High	Zone 12b
smallspike false nettle Boehmeria cylindrica	Wildflower (forb)	3.9 ft	Shade-tolerant	Medium	Zone 4a
smooth beggartick Bidens laevis	Wildflower (forb)	3.3 ft	Sun–part shade	High	Zone 12b
smooth hedgenettle Stachys tenuifolia	Wildflower (forb)	25 ft	Shade-tolerant	High	Zone 4a
southern catalpa Catalpa bignonioides	Tree	66 ft	Sun–part shade	Low	Zone 5b
southern waternymph Najas guadalupensis	Wildflower (forb)	1 ft	Sun	High	Zone 3b
Spanish moss Tillandsia usneoides	Vine	—	Shade-tolerant	Medium	Zone 9b
spotted St. Johnswort Hypericum punctatum	Wildflower (forb)	3 ft	Shade-tolerant	Medium	Zone 4a
stalkless yellowcress Rorippa sessiliflora	Wildflower (forb)	1.5 ft	Sun–part shade	High	Zone 12b
stiff dogwood Cornus foemina	Tree	16 ft	Sun–part shade	Medium	Zone 7a
stiff marsh bedstraw Galium tinctorium	Wildflower (forb)	10 in	Shade-tolerant	High	Zone 4a
sugarberry Celtis laevigata	Tree	80 ft	Shade-tolerant	High	Zone 5a
sugarcane plumegrass Saccharum giganteum	Grass or grass-like	9.8 ft	Sun	Medium	Zone 4b
swamp chestnut oak Quercus michauxii	Tree	80 ft	Sun	Medium	Zone 5a
swamp smartweed Polygonum hydropiperoides	Wildflower (forb)	—	Sun	Medium	Zone 10b
sweetgum Liquidambar styraciflua	Tree	100 ft	Sun	High	Zone 5a
taperleaf water horehound Lycopus rubellus	Wildflower (forb)	1.6 ft	Shade-tolerant	High	Zone 5a
tapertip rush Juncus acuminatus	Grass or grass-like	3 ft	Sun–part shade	High	Zone 4a
teal lovegrass Eragrostis hypnoides	Grass or grass-like	4 in	Sun	High	Zone 3b
trumpet creeper Campsis radicans	Vine	2 ft	Sun	Low	Zone 6a
valdivia duckweed Lemna valdiviana	Wildflower (forb)	1 in	Sun	High	Zone 4a
valley redstem Ammannia coccinea	Wildflower (forb)	1.6 ft	Sun	Medium	Zone 3b
variable panicgrass Dichanthelium commutatum	Grass or grass-like	4.9 ft	Sun–part shade	Low	Zone 4b
Virginia creeper Parthenocissus quinquefolia	Vine	1 ft	Sun–part shade	Low	Zone 4b
Virginia dayflower Commelina virginica	Wildflower (forb)	3.5 ft	Shade-tolerant	Medium	Zone 5b
Virginia water horehound Lycopus virginicus	Wildflower (forb)	4 ft	Shade-tolerant	High	Zone 4a
Virginia wildrye Elymus virginicus	Grass or grass-like	2.5 ft	Shade-tolerant	Medium	Zone 4b
water hickory Carya aquatica	Tree	85 ft	Sun–part shade	Medium	Zone 5b
water locust Gleditsia aquatica	Tree	40 ft	Sun–part shade	—	Zone 10a
water oak Quercus nigra	Tree	90 ft	Sun	High	Zone 5a
wax myrtle Morella cerifera	Tree	10 ft	Sun	High	Zone 7a
white ash Fraxinus americana	Tree	90 ft	Sun	High	Zone 4a
white avens Geum canadense	Wildflower (forb)	3.9 ft	Shade-tolerant	Medium	Zone 4a
whitegrass Leersia virginica	Grass or grass-like	3.9 ft	Shade-tolerant	Medium	Zone 3a
willow oak Quercus phellos	Tree	100 ft	Sun	High	Zone 5a
winged elm Ulmus alata	Tree	65 ft	Shade-tolerant	Medium	Zone 5b
wingleaf primrose-willow Ludwigia decurrens	Wildflower (forb)	4.5 ft	Shade-tolerant	High	Zone 8a

Other native species recorded here 163

PLANTS has no growing records for these, so light, moisture, height and zone filters cannot include them. Many are wild species seldom sold by nurseries.

Alabama supplejack Berchemia scandens
Amazon sprangletop Leptochloa panicoides
American buckwheat vine Brunnichia ovata
American burnweed Erechtites hieraciifolius
anglestem primrose-willow Ludwigia leptocarpa
angularfruit milkvine Matelea gonocarpos
annual marsh elder Iva annua
annual ragweed Ambrosia artemisiifolia
axilflower Mecardonia acuminata
beach false foxglove Agalinis fasciculata
beaked cornsalad Valerianella radiata
bearded flatsedge Cyperus squarrosus
bigpod sesbania Sesbania herbacea
blackseed plantain Plantago rugelii
blisterwort Ranunculus recurvatus
blue mudplantain Heteranthera limosa
bluejacket Tradescantia ohiensis
branched foldwing Dicliptera brachiata
Brazilian watermeal Wolffia brasiliensis
bristly greenbrier Smilax tamnoides
brome-like sedge Carex bromoides
camphor pluchea Pluchea camphorata
Canada lettuce Lactuca canadensis
Canada toadflax Nuttallanthus canadensis
Canadian blacksnakeroot Sanicula canadensis
Canadian clearweed Pilea pumila
Canadian honewort Cryptotaenia canadensis
Carolina canarygrass Phalaris caroliniana
Carolina coralbead Cocculus carolinus
Carolina geranium Geranium carolinianum
Carolina horsenettle Solanum carolinense
Carolina mosquitofern Azolla caroliniana
Carolina ponysfoot Dichondra carolinensis
Cherokee sedge Carex cherokeensis
clammy groundcherry Physalis heterophylla
clammy hedgehyssop Gratiola neglecta
climbing dogbane Trachelospermum difforme
climbing false buckwheat Polygonum scandens
Columbian watermeal Wolffia columbiana
common yellow oxalis Oxalis stricta
creeping burhead Echinodorus cordifolius
creeping lovegrass Neeragrostis reptans
crossvine Bignonia capreolata
crowpoison Nothoscordum bivalve
curlytop knotweed Polygonum lapathifolium
cusp dodder Cuscuta cuspidata
cutleaf evening primrose Oenothera laciniata
cutleaf groundcherry Physalis angulata
cutleaf watermilfoil Myriophyllum pinnatum
cylindricfruit primrose-willow Ludwigia glandulosa
cypress panicgrass Dichanthelium dichotomum
Dillenius' ticktrefoil Desmodium glabellum
dogfennel Eupatorium capillifolium
eastern bluestar Amsonia tabernaemontana
eastern marsh fern Thelypteris palustris
eastern poison ivy Toxicodendron radicans
ebony spleenwort Asplenium platyneuron
eyebane Chamaesyce nutans
floating marshpennywort Hydrocotyle ranunculoides
Florida mudmidget Wolffiella gladiata
globe flatsedge Cyperus echinatus
grassleaf mudplantain Heteranthera dubia
grassy arrowhead Sagittaria graminea
great blue lobelia Lobelia siphilitica
great ragweed Ambrosia trifida
green carpetweed Mollugo verticillata
green dragon Arisaema dracontium
Guadeloupe cucumber Melothria pendula
hairy clustervine Jacquemontia tamnifolia
hairy waterclover Marsilea vestita
hairyfruit chervil Chaerophyllum tainturieri
heartleaf nettle Urtica chamaedryoides
Heller's rosette grass Dichanthelium oligosanthes
herbwilliam Ptilimnium capillaceum
hirsute sedge Carex complanata
hooded arrowhead Sagittaria calycina
humped bladderwort Utricularia gibba
husk tomato Physalis pubescens
Juda's bush Iresine rhizomatosa
jumpseed Polygonum virginianum
juniper leaf Polypremum procumbens
lakecress Neobeckia aquatica
lanceleaf fogfruit Phyla lanceolata
lateflowering thoroughwort Eupatorium serotinum
lax hornpod Mitreola petiolata
little duckweed Lemna obscura
lizard's tail Saururus cernuus
longflower beeblossom Oenothera filiformis
Louisiana vetch Vicia ludoviciana
low spearwort Ranunculus pusillus
low spikesedge Kyllinga pumila
lowland rotala Rotala ramosior
maidencane Panicum hemitomon
man of the earth Ipomoea pandurata
manyflower marshpennywort Hydrocotyle umbellata
marsh bristlegrass Setaria parviflora
marsh lady's tresses Spiranthes odorata
mucronate sprangletop Leptochloa panicea
narrowleaf paleseed Leucospora multifida
neckweed Veronica peregrina
oak mistletoe Phoradendron leucarpum
oneseed bur cucumber Sicyos angulatus
Pennsylvania everlasting Gamochaeta pensylvanica
pine barren flatsedge Cyperus retrorsus
pineland threeseed mercury Acalypha ostryifolia
pink thoroughwort Fleischmannia incarnata
pinkladies Oenothera speciosa
prickly fanpetals Sida spinosa
prostrate sandmat Chamaesyce prostrata
purple passionflower Passiflora incarnata
rough barnyardgrass Echinochloa muricata
scaldweed Cuscuta gronovii
seedbox Ludwigia alternifolia
sharpscale sedge Carex oxylepis
silvery everlasting Gamochaeta argyrinea
sixweeks fescue Vulpia octoflora
slender fimbry Fimbristylis autumnalis
slender threeseed mercury Acalypha gracilens
slenderleaf false foxglove Agalinis tenuifolia
slim amaranth Amaranthus hybridus
slimpod rush Juncus diffusissimus
small pondweed Potamogeton pusillus
small Venus' looking-glass Triodanis biflora
smallflower baby blue eyes Nemophila aphylla
smooth false buttonweed Spermacoce glabra
southern annual saltmarsh aster Symphyotrichum divaricatum
southern dewberry Rubus trivialis
Spanish needles Bidens bipinnata
spotted sandmat Chamaesyce maculata
spotted water hemlock Cicuta maculata
spring forget-me-not Myosotis verna
spring lady's tresses Spiranthes vernalis
spurred butterfly pea Centrosema virginianum
St. Andrew's cross Hypericum hypericoides
stout rush Juncus nodatus
swamp dock Rumex verticillatus
swamp leather flower Clematis crispa
swamp wedgescale Sphenopholis pensylvanica
Texas vervain Verbena halei
trailing pearlwort Sagina decumbens
tropical flatsedge Cyperus surinamensis
tuberous stoneseed Lithospermum tuberosum
tufted lovegrass Eragrostis pectinacea
twoleaf watermilfoil Myriophyllum heterophyllum
Vahl's fimbry Fimbristylis vahlii
Virginia buttonweed Diodia virginiana
Virginia pepperweed Lepidium virginicum
wand lythrum Lythrum lineare
warty spurge Euphorbia spathulata
water lettuce Pistia stratiotes
waterpurslane Didiplis diandra
white snakeroot Ageratina altissima
white vervain Verbena urticifolia
whitestar Ipomoea lacunosa
whorled marshpennywort Hydrocotyle verticillata
wild yam Dioscorea villosa
willowleaf aster Symphyotrichum praealtum
winged lythrum Lythrum alatum
Wolf's spikerush Eleocharis wolfii
woodland lettuce Lactuca floridana
yellow spikerush Eleocharis flavescens
yellow thistle Cirsium horridulum
zigzag iris Iris brevicaulis

Also listed as native and introduced here 3

PLANTS labels these species both native and introduced in this state: some forms are native and others were brought in from elsewhere. Most gardeners should choose plants from the main list.

floating primrose-willowLudwigia peploides
hedge false bindweedCalystegia sepium
Mexican teaDysphania ambrosioides

Compared with Louisiana

The typical county is the median of the 64 Louisiana counties with PLANTS county records; the statewide figure counts every species native anywhere in the state. More species is not better or worse: counties differ in size, habitat and how thoroughly they have been surveyed.

Native species counts, St. Martin Parish and Louisiana
Measure	St. Martin Parish	Typical county	Statewide
Native species	323	587	1,420
Garden-ready natives	160	271	520
Tree	50	—	151
Shrub	4	—	54
Wildflower (forb)	164	—	761
Grass or grass-like	66	—	342
Vine	34	—	74
Fern	5	—	38

Neighboring counties

Counties that share a ZIP code with St. Martin Parish.

Assumption Parish, LA 112 garden-ready
Iberia Parish, LA 189 garden-ready
Lafayette Parish, LA 212 garden-ready
St. Landry Parish, LA 211 garden-ready

Source & data date

Source: USDA NRCS PLANTS Database: county distribution records, native status and plant characteristics. CC0 (public domain dedication, per the data.gov catalog record).; Kew’s World Checklist of Vascular Plants (WCVP): native or introduced status by state. CC BY 3.0.; USGS US-RIIS (ver. 2.0): species listed as introduced are excluded. CC0.
Citation: USDA, NRCS. 2026. The PLANTS Database (https://plants.usda.gov, 11/04/2026). National Plant Data Team, Greensboro, NC USA.; Govaerts R. (ed.) (2026). WCVP: World Checklist of Vascular Plants. Facilitated by the Royal Botanic Gardens, Kew. Data file dated 2026-06-04, http://sftp.kew.org/pub/data-repositories/WCVP/ (retrieved 2026-11-04). Paper: Govaerts R. et al. (2021) The World Checklist of Vascular Plants, a continuously updated resource for exploring global plant diversity. Scientific Data 8, 215.
Data date: Retrieved from PLANTS on November 4, 2026; WCVP data file dated June 4, 2026.
Zones: USDA Plant Hardiness Zone Map (2023) ZIP table: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed November 3, 2026. Plant zones on this site are our estimate, not the official map.
Scope: St. Martin Parish (county FIPS 22099), Louisiana. 323 native species from PLANTS county distribution records; garden-ready = species with a PLANTS characteristics record.
Method: A species is listed when it is recorded as native to the state in Kew’s World Checklist of Vascular Plants and USDA PLANTS, and recorded in the county by USDA PLANTS. Species PLANTS labels both native and introduced are listed separately. Full method · All sources

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