Special thanks to Bill Carr for preparing this material. Additional notes by NPAT.

May-June, 2002 (X=non-native)

Allium canadense (Canada wild onion)
Alophia drummondii (Purple pleat-leaf iris)
Ambrosia artemisiifolia (Common ragweed)
Ambrosia trifida (Giant ragweed)
Andropogon ternarius (Splitbeard bluestem)
Aphanostephus skirrhobasis (Lazy-daisy)
Arenaria drummondii (Sandwort)
Aristida sp. (Threeawn)
Artemisia ludoviciana (White sage)
Asclepias tuberosa (Butterfly-weed)
Asclepias sp. (Milkweed)
Astranthium integrifolium (Western daisy)

Berchemia scandens (Rattan-vine)
Berlandiera pumila (soft green-eyes)
X Bromus sp. (Brome)
X Briza minor (Little quakinggrass)
Carex sp. (Caric-sedge)
Carya texana (Black hickory)
Castilleja indivisa (Texas Indian-paintbrush)
Celtis laevigata (Sugarberry)
Cenchrus incertus (Common sandbur)
Cercis canadensis (Redbud)
Chamaecrista fasciculata (Partridge pea)
Chamaesyce nutans (Carpetweed)
Cirsium sp. (Thistle)
Cnidoscolus texanus (Texas bull-nettle)

Coreopsis tinctoria (Plains coreopsis)
Croptilon divaricatum (Slender scratch-daisy)
Croton capitatus (Woolly croton)
Cyperus sp. (Flatsedge)
Dalea phleoides (Dalea)
Delphinium carolinianum (Blue larkspur)
Desmanthus sp. (Bundleflower)
Desmodium sp. (Tick-clover)
Diospyros virginiana (Common persimmon)
Eleocharis sp. (Spikesedge)
Elymus virginicus (Virginia wildrye)
Eragrostis sp. (Red lovegrass)
Erigeron strigosus (Prairie fleabane)
Eupatorium serotinum (Late-flowering thoroughwort)
Euphorbia spp. (Spurges)
Gaillardia aestivalis (Lanceleaf gaillardia)

Gaillardia amblyodon (Maroon gaillardia)
Gaillardia pulchella (Indian blanket)
Galactia sp. (Milkpea)
Gleditsia triacanthos (Honeylocust)
Hedeoma hispidum (Rough hedeoma)
Helianthemum georgianum (Georgia sunrose)
Helianthus petiolaris (Plains sunflower)
Heterotheca subaxillaris (Camphor weed)
Hymenopappus artemisifolius (Ragweed woolly-white)
Ilex vomitoria (Yaupon)
Ipomoea sp. (Morning-glory)
Juncus validus (Roundhead rush)
Juncus sp. (Rush)
Juniperus virginiana (Eastern redcedar)
Liatris elegans (Pinkscale gayfeather)
Linum sp. (Flax)
Matelea biflora (Twoflower milkvine)
Mecardonia sp. (Water-hyssop)
Mikania scandens (Climbing hempweed)
Monarda punctata (Spotted bee balm)
Myrica cerifera (Southern wax-myrtle)
Oenothera laciniata (Downy evening-primrose)
Opuntia humifusa (Prickly-pear)
Panicum linearifolia (Slimleaf rosettegrass)
Panicum virgatum (Switchgrass)
Panicum sp. (Panicum)
Paronychia drummondii (Drummond nailwort)
Parthenocissus quinquefolia (Virginia-creeper)
X Paspalum urvillei (Vaseygrass)
Paspalum sp. (Paspalum)
Penstemon australis (Penstemon)
Physalis sp. (Ground-cherry)
Pinus taeda (Loblolly pine)
Polypremum procumbens (Juniperleaf)
Populus deltoides (Eastern cottonwood)
Prosopis glandulosa (Honey mesquite)
Prunus angustifolia (Chickasaw plum Prunus mexicana (Mexican plum)
Ptilimnium nuttallii (Nuttall mock-bishop’s-weed)
Quercus nigra (Water oak)
Quercus stellata (Post oak)
Rhychosia latifolia (Broadleaf snoutbean)
Rhynchospora globularis (Globe beak-sedge)
X Richardia brasiliensis (Tropical Mexican-clover)
Rudbeckia hirta (Black-eyed Susan)
Rubus riograndis (Southern dewberry)
Rumex hymenosepalus Sabatia campestris (Meadow pink)
Salix nigra (Black willow)
Schizachyrium scoparium (Little bluestem)
Schrankia sp. (Sensitive-brier)
Setaria geniculata (Knotroot bristlegrass)
Silene antirrhina (Sleepy catchfly)
Silphium radula (Compass plant)
Smilax bona-nox (Sawtoooth greenbrier)
Smilax tamnoides (Greenbriar)
X Sorghum halapense (Johnsongrass)
Stillingia sylvatica (Queen’s delight)
Symphoricarpos orb (Coral-berry)
Toxicodendron radicans (Poison-ivy)
Tradescantia sp. (Spiderwort)
Tridens flavus (Purpletop)
Ulmus americana (American elm)
Verbena brasiliensis (Brazilian vervain)
Verbesina virginica (Frostweed)
Vernonia baldwinii (Western ironweed)
Vernonia missurica (Missouri ironweed)
Vitis mustangensis (Mustang grape)
Vulpia myuros (Common sixweeksgrass)
Yucca louisianensis (Louisiana yucca)