| Species | | Description/Photographer |
| See the previous set of photos |
| Polygonum cuspidatum | | A large plant/photo JMR |
| Polygonum cuspidatum | | A branch/photo JMR |
| Polygonum cuspidatum | | Flower buds/photo BAR |
| Polygonum cuspidatum | | A pink plant/photo BAR |
| Polygonum cuspidatum | | Pink branch/photo BAR |
| Polygonum cuspidatum | | Pink flowers/photo BAR |
| Polygonum cuspidatum | | Riverside/photo JMR |
| Polygonum cuspidatum | | Green branches/photo MT |
| Polygonum perfoliatum | | Japanese beetles/photo JMR |
| Polygonum perfoliatum | | Beetle damage/photo JMR |
| Polygonum perfoliatum | | Thwarted scientists/photo JMR |
| Polygonum perfoliatum | | Nasty leaves/photo JMR |
| Polygonum perfoliatum | | Nasty branch/photo JMR |
| Polygonum perfoliatum | | A big lump/photo courtesy Bill Jacobs, bjacobs(at)tnc.org (*) |
| Polygonum perfoliatum | | Climbing bushes/photo courtesy Bill Jacobs, bjacobs(at)tnc.org (*) |
| Polygonum perfoliatum | | Climbing trees/photo courtesy Bill Jacobs, bjacobs(at)tnc.org (*) |
| Polypogon monspeliensis | | Fuzzy flowers/photo BAR |
| Polypogon monspeliensis | | Plant/photo JMR |
| Potentilla recta | | Flowers/photo JMR |
| Potentilla recta | | Plants/photo JMR |
| Potentilla recta | | Hillside/photo Jerry Asher(*) |
| Populus nigra var. italica | | Dune invasion/photo JMR |
| Populus nigra var. italica | | Big trees I/photo JMR |
| Populus nigra var. italica | | Big trees II/photo JMR |
| Populus nigra var. italica | | Sucker/photo JMR |
| Populus nigra var. italica | | Lake beyond the weeds/photo JMR |
| Prosopis pallida | | Trees/photo JMR |
| Psidium cattleianum | | An invasive tree/photo JMR |
| Psidium guajava | | Dense tree/photo JMR |
| Psidium guajava | | Leaves/photo JMR |
| Psoralea pinnata | | Leaves and flowers/photo JMR |
| Psoralea pinnata | | Floral close-up/photo JMR |
| Psoralea pinnata | | Bush/photo JMR |
| Pueraria montana | | Weird.../photo BAR |
| Pueraria montana | | Weirder!/photo BAR |
| Pueraria montana | | More weirder/photo BAR |
| Pueraria montana | | More weirdest/photo BAR |
| Pueraria montana | | Flowers/photo BAR |
| Pueraria montana | | Weirdissimo.../photo JMR |
| Pueraria montana | | More weird/photo JMR |
| Pueraria montana | | Leaflets three/photo MT |
| Pueraria montana | | Invasions--so sad/photo BAR |
| Pueraria montana | | Scientist imperilled/photo MT |
| Quercus acutissima | | Leaves/photo JMR |
| Quercus acutissima | | Landscape tree/photo JMR |
| Ranunculus ficaria | | In garden/photo MT |
| Ranunculus ficaria | | Viewed closer/photo MT |
| Ranunculus ficaria | | Wider view/photo MT |
| Ranunculus ficaria | | In forest/Allan Lindberg (Nassau Co. Parks Dept., ajlindberg(at)verizon.net) |
| Ranunculus ficaria | | Many flowers/Allan Lindberg (Nassau Co. Parks Dept., ajlindberg(at)verizon.net) |
| Ranunculus ficaria | | Streamside/Allan Lindberg (Nassau Co. Parks Dept., ajlindberg(at)verizon.net) |
| Ranunculus ficaria | | Stream banks/Allan Lindberg (Nassau Co. Parks Dept., ajlindberg(at)verizon.net) |
| Raphanus sativus | | Bad foliage/photo JMR |
| Rhamnus cathartica | | Foliage I/photo JMR |
| Rhamnus cathartica | | Fruit I/photo JMR |
| Rhamnus cathartica | | Orange tissue/photo JMR |
| Rhamnus cathartica | | Foliage II/photo JMR |
| Rhamnus cathartica | | Fruit III/photo JMR |
| Rhamnus cathartica | | Fruit II/photo JMR |
| Rhamnus cathartica | | Leafing out/photo JMR |
| Rhamnus cathartica | | Invasion/photo JMR |
| Rhamnus frangula | | Plant/photo JMR |
| Rhamnus frangula | | Flowers/photo JMR |
| Rhamnus frangula | | Fruit.../photo JMR |
| Rhamnus frangula | | ...and more fruit/photo JMR |
| Rhamnus frangula | | Twigs/photo JMR |
| Rhamnus frangula | | Encroaching/photo JMR |
| Rhamnus frangula | | Seedlings & resprouts/photo JMR |
| Rhodomyrtus tomentosa | | Shrubs/photo JMR |
| Rhodotypos scandens | | Leaves and fruit/photo JMR |
| Rhodotypos scandens | | Leaves/photo JMR |
| Rhodotypos scandens | | Flowers and fruit/photo Marilyn Jordan, mjordan(at)tnc.org(*) |
| Rhodotypos scandens | | Shrub/photo Marilyn Jordan, mjordan(at)tnc.org(*) |
| Rhodotypos scandens | | Leaves and flowers/photo Marilyn Jordan, mjordan(at)tnc.org(*) |
| Ricinus communis | | Leaves/photo JMR |
| Ricinus communis | | More leaves/photo JMR |
| Ricinus communis | | Flowers/photo JMR |
| Ricinus communis | | Autumnal bush/photo BAR |
| Ricinus communis | | Toxic beans/photo BAR |
| Ricinus communis | | Oceanside/photo MT |
| Rivina humilis | | Leaves and fruit/photo JMR |
| Robinia pseudoacacia | | Small trees/photo JMR |
| Robinia pseudoacacia | | Flowers/photo JMR |
| Robinia pseudoacacia | | More flowers/photo JMR |
| Robinia pseudoacacia | | Flowering branch/photo JMR |
| Robinia pseudoacacia | | Tree bark/photo JMR |
| Robinia pseudoacacia | | Fruit/photo JMR |
| Robinia pseudoacacia | | Young tree/photo JMR |
| Robinia pseudoacacia | | Lone tree/photo MT |
| Robinia pseudoacacia | | Dried pods I/photo MT |
| Robinia pseudoacacia | | Dried pods II/photo MT |
| Romulea rosea | | Sandy plant/photo JMR |
| Romulea rosea | | Flower close-up/photo JMR |
| Rosa multiflora | | Thorns/photo BAR |
| Rosa multiflora | | Fruit/photo BAR |
| Rosa multiflora | | Flowers I/photo JMR |
| Rosa multiflora | | Stolon formation/photo JMR |
| Rosa multiflora | | Clambering upslope/photo JMR |
| Rosa multiflora | | Scientists in peril!/photo JMR |
| Rosa multiflora | | Stipulate leaf/photo JMR |
| Rosa multiflora | | wi/rosette disease/photo JMR |
| Rosa multiflora | | Flowers II/photo JMR |
| Rosa multiflora | | Big bush!/photo JMR |
| Rubus argutus | | Bad! Bad!/photo JMR |
| Rubus argutus | | Fruit/photo JMR |
| Rubus argutus | | Flower/photo JMR |
| Rubus argutus | | Ow! Ow!/photo JMR |
| Rubus armeniacus | | Big plant/photo JMR |
| Rubus armeniacus | | Plant/photo JMR |
| Rubus armeniacus | | Yum! Yum!/photo JMR |
| Rubus armeniacus | | Flowers/photo JMR |
| Rubus armeniacus | | More flowers/photo JMR |
| Rubus armeniacus | | Pretty flowers/photo JMR |
| Rubus armeniacus | | A thorny field/photo JMR |
| Rubus armeniacus | | A very thorny field/photo JMR |
| Rubus fruticosus | | Sprawling/photo JMR |
| Rubus fruticosus | | Spiny stems/photo JMR |
| Rubus phoenicolasius | | Plants/photo JMR |
| Rubus phoenicolasius | | Spiny branch/photo JMR |
| Rubus phoenicolasius | | Fruit/photo JMR |
| Rubus phoenicolasius | | Yum yum!/photo JMR |
| Rubus rosifolius | | Plants/photo JMR |
| Rumex crispus | | Inflorescence/photo JMR |
| Rumex crispus | | Plants/photo JMR |
| Rumex crispus | | In slough I/photo JMR |
| Rumex crispus | | In slough II/photo JMR |
| Saccharum ravennae | | Many culms/photo Jeffrey Firestone(*) |
| Saccharum ravennae | | Snippers for scale/photo Jeffrey Firestone(*) |
| Saccharum ravennae | | Hairy sheaths/photo Jeffrey Firestone(*) |
| Saccharum ravennae | | Inflorescences/photo Jeffrey Firestone(*) |
| Saccharum ravennae | | By a bridge/photo Jeffrey Firestone(*) |
| Saccharum ravennae | | Thick infestation/photo Jeffrey Firestone(*) |
| Saccharum ravennae | | Arched plumes/photo Jeffrey Firestone(*) |
| Saccharum ravennae | | Tall plumes/photo Jeffrey Firestone(*) |
| Saccharum ravennae | | Riverside growth/photo Jeffrey Firestone(*) |
| Saccharum ravennae | | On both banks/photo Jeffrey Firestone(*) |
| Saccharum ravennae | | Riparian weed/photo Jeffrey Firestone(*) |
| Salix sp. | | Group of plants/photo JMR |
| Salix sp. | | Hedge/photo JMR |
| Salix sp. | | Shoreline plants/photo JMR |
| Salix sp. | | Young plant/photo JMR |
| Salvia aethiopis | | Hillside plants/photo Jerry Asher(*) |
| Salsola sp. | | Choking branches/photo JMR |
| Salvinia minima | | Floating plants/photo BAR |
| Salvinia minima | | Gobbling a pond/photo BAR |
| Salvinia minima | | Many leaves/photo BAR |
| Salvinia minima | | In a bayou/photo BAR |
| Salvinia minima | | Leaf close-up/photo BAR |
| Salvinia molesta | | A plant/photo BAR |
| Salvinia molesta | | Leaf surface/photo BAR |
| Salvinia molesta | | Leaf hairs/photo BAR |
| Sapium sebiferum | | Catkin/photo JMR |
| Sapium sebiferum | | Looking upwards/photo MT |
| Sapium sebiferum | | Young tree/photo JMR |
| Sapium sebiferum | | Fruit/photo JMR |
| Sapium sebiferum | | Lygodium japonicum on Sapium sebiferum/photo BAR |
| Sapium sebiferum | | Infestation!/photo JMR |
| Sapium sebiferum | | Don't eat the fruit!/photo BAR |
| Sapium sebiferum | | Resprouts/photo JMR |
| Sapium sebiferum | | Green leaves/photo JMR |
| Sapium sebiferum | | Landscape tree/photo JMR |
| Saponaria officinalis | | Pretty flowers/photo JMR |
| Saponaria officinalis | | Whole plant/photo JMR |
| Saponaria officinalis | | In dunes I/photo JMR |
| Saponaria officinalis | | In dunes II/photo JMR |
| Scaevola sericea | | Flowers/photo MT |
| Scaevola sericea | | Flowers and fruit/photo MT |
| Scaevola sericea | | Many fruit/photo MT |
| Scaevola sericea | | Plant/photo MT |
| Schinus molle | | Fruiting branch/photo JMR |
| Schinus molle | | Tree branches/photo JMR |
| Schinus molle | | Leaves/photo BAR |
| Schinus molle | | Flowering branch/photo BAR |
| Schinus molle | | Floral close-up/photo BAR |
| Schinus molle | | Fruit/photo BAR |
| Schinus polygamus | | Branches/photo BAR |
| Schinus polygamus | | Leaves/photo BAR |
| Schinus polygamus | | Nasty apical spine/photo BAR |
| Schinus polygamus | | Bolting suckers/photo BAR |
| Schinus polygamus | | Bark/photo BAR |
| Schinus terebinthifolius | | Flowering branch/photo JMR |
| Schinus terebinthifolius | | Fruiting branch/photo JMR |
| Schinus terebinthifolius | | Fruit/photo JMR |
| Schinus terebinthifolius | | Sterile understory/photo JMR |
| Schinus terebinthifolius | | Young leaves/photo BAR |
| Schinus terebinthifolius | | Old fruit I/photo BAR |
| Schinus terebinthifolius | | Old fruit II/photo BAR |
| Schinus terebinthifolius | | Shaded leaves/photo BAR |
| Schinus terebinthifolius | | Sunny leaves/photo BAR |
| Schismus spp. | | On desert floor I/photo JMR |
| Schismus spp. | | On desert floor II/photo JMR |
| Schismus spp. | | On desert floor III/photo JMR |
| Senecio jacobaea | | Flowering plant/photo MT |
| Senecio jacobaea | | Foreground weeds/photo JMR |
| Sesbania exaltata | | Branchlet/photo BAR |
| Sesbania punicea | | Small tree/photo JMR |
| Sesbania punicea | | Flowering branch/photo JMR |
| Sesbania punicea | | Flowers/photo JMR |
| Sesbania punicea | | Fruit/photo BAR |
| Sesbania punicea | | Fruiting tree/photo BAR |
| Sesbania punicea | | Infested island/photo BAR |
| Silybum marianum | | Prickly plants/photo JMR |
| Silybum marianum | | Spiny flowers I/photo JMR |
| Silybum marianum | | Spiny flowers II/photo JMR |
| Silybum marianum | | A world of pain/photo JMR |
| Silybum marianum | | Pretty leaves I/photo BAR |
| Silybum marianum | | Pretty leaves II/photo BAR |
| Sinapis arvensis | | Fruit/photo JMR |
| Sisymbrium orientale | | A grassland invasion/photo JMR |
| Sisymbrium orientale | | Dominating grassland along the road/photo JMR |
| Sisymbrium orientale | | S. orientale patch with billy goat skull/photo JMR |
| Solanum dulcamara | | Flowers and leaves/photo JMR |
| Solanum viarum | | Bushes/photo Randy Westbrooks(*) |
| Solanum viarum | | More bushes/photo JMR |
| Sonchus arvensis | | Flowering plants/photo JMR |
| Sorghum halepense | | Plant portrait/photo BAR |
| Sorghum halepense | | A flowering stem/photo BAR |
| Sorghum halepense | | Branches/photo BAR |
| Sorghum halepense | | Awns on florets/photo BAR |
| Sorghum halepense | | Bad!/photo JMR |
| Sorghum halepense | | Ratty plants/photo JMR |
| Sparaxis bulbifera | | White flowered plant/photo JMR |
| Spartina alterniflora | | Mudflat I/photo JMR |
| Spartina alterniflora | | Mudflat II/photo JMR |
| Spartina alterniflora | | Dense plants/photo JMR |
| Spartium junceum | | More flowers/photo JMR |
| Spartium junceum | | Flowering bushes/photo JMR |
| Spartium junceum | | Young fruit/photo JMR |
| Spartium junceum | | More invading bushes/photo JMR |
| Spartium junceum | | Flowering bush/photo JMR |
| Spartium junceum | | Big plants/photo BAR |
| Spartium junceum | | Needle-branches/photo BAR |
| Spartium junceum | | Branches close up/photo BAR |
| Spartium junceum | | Single bush/photo JMR |
| Spartium junceum | | Flowers close-up/photo JMR |
| Spathodea campanulata | | Branches/photo JMR |
| Spathodea campanulata | | Flowers/photo JMR |
| Spathodea campanulata | | More flowers/photo JMR |
| Spathodea campanulata | | Yellow flowers/photo JMR |
| Sphaerophysa salsula | | Seedlings/photo MT |
| Sphaerophysa salsula | | Dead grey growth/photo MT |
| Sphaerophysa salsula | | Big grey patch/photo MT |
| Taeniatherum caput-medusae | | Close-up of seed head/photo JMR |
| Taeniatherum caput-medusae | | Big awns/photo BAR |
| Taeniatherum caput-medusae | | In the field/photo JMR |
| Taeniatherum caput-medusae | | Matted plants/photo JMR |
| Tamarix aphylla | | Tree/photo JMR |
| Tamarix aphylla | | Flowers I/photo JMR |
| Tamarix aphylla | | Flowers II/photo JMR |
| Tamarix aphylla | | Leaves/photo JMR |
| Tamarix parviflora | | Flower detail I/photo BAR |
| Tamarix parviflora | | Flower detail II/photo BAR |
| Tamarix parviflora | | Many flowers/photo JMR |
| Tamarix parviflora | | Streamside I/photo JMR |
| Tamarix parviflora | | Streamside II/photo JMR |
| Tamarix parviflora | | Streamside III/photo JMR |
| Tamarix parviflora | | In streambed I/photo JMR |
| Tamarix parviflora | | In streambed II/photo JMR |
| Tamarix ramosissima | | Colorado River/photo JMR |
| Tamarix ramosissima | | In Grand Canyon I/photo JMR |
| Tamarix ramosissima | | In Grand Canyon II/photo JMR |
| Tamarix ramosissima | | Flowers/photo JMR |
| Tamarix ramosissima | | Shrubby trees/photo JMR |
| Tamarix ramosissima | | Single bush/photo JMR |
| Tamarix ramosissima | | Scraggly plants/photo JMR |
| Tamarix sp. | | A bushy plant/photo JMR |
| Tamarix sp. | | In flower/photo JMR |
| Tamarix sp. | | Flower clusters/photo JMR |
| Tamarix sp. | | Fall colors I/photo JMR |
| Tamarix sp. | | Fall colors II/photo JMR |
| Tamarix sp. | | Dense growth/photo JMR |
| Tamarix sp. | | In a river/photo JMR |
| Tibouchina herbacea | | A thick marsh/photo Pat Bily(*) |
| Tibouchina herbacea | | Many plants!/photo Pat Bily(*) |
| Tibouchina urvilleana | | Trees/photo JMR |
| Tibouchina urvilleana | | Flowers/photo JMR |
| Tithonia diversifolia | | Flowers/photo JMR |
| Toona ciliata | | Trees/photo JMR |
| Toona sinensis | | Looking up I/photo JMR |
| Toona sinensis | | Looking up II/photo JMR |
| Tragopogon dubius | | Inflorescence/photo JMR |
| Tragopogon dubius | | Plants/photo JMR |
| Tragopogon porrifolius | | Seed head/photo JMR |
| Tragopogon sp. | | Flower, WY/photo JMR |
| Tragopogon sp. | | Seed head, MT/photo JMR |
| Trapa natans | | Lake weeds/photo JMR |
| Trapa natans | | Lots a' weeds/photo JMR |
| Trapa natans | | Where did the lake go?/photo JMR |
| Trapa natans | | On the water's edge/photo JMR |
| Tribolium obliterum | | Along a rock/photo Susan Hubbard(*) |
| Tribolium obliterum | | On the ground/photo Susan Hubbard(*) |
| Tribolium obliterum | | Clusters/photo Susan Hubbard(*) |
| Tribolium obliterum | | Stolons/photo Susan Hubbard(*) |
| Tribolium obliterum | | Herbarium images/photo BAR (WYSIWYG--see note at bottom) |
| Tribolium uniolae | | Inflorescence/photo JMR |
| Tribulus terrestris | | Matted plants/photo JMR |
| Tribulus terrestris | | Spiny fruit-ouch! ouch!/photo JMR |
| Tribulus terrestris | | Sprawling stems/photo JMR |
| Tropaeolum majus | | Orange flowers/photo JMR |
| Typha angustifolia | | Pondside/photo MT |
| Typha angustifolia | | Tall glade/photo MT |
| Typha angustifolia | | In flower/photo MT |
| Typha angustifolia | | A whole field/photo MT |
| Typha latifolia | | A thick growth/photo BAR |
| Typha latifolia | | Cattails!/photo BAR |
| Ulex europaeus | | A bush and human head/photo JMR |
| Ulex europaeus | | Flowering branch/photo JMR |
| Ulex europaeus | | Pokey branches/photo JMR |
| Ulex europaeus | | Flowers/photo JMR |
| Ulex europaeus | | Spiny pathway/photo JMR |
| Ulex europaeus | | Pokey flowers/photo JMR |
| Ulex europaeus | | Juvenile plants/photo JMR |
| Ulmus pumila | | Tree/photo JMR |
| Ulmus pumila | | Leaves and bark/photo JMR |
| Ulmus pumila | | Leaves/photo JMR |
| Ulmus pumila | | Seedling/photo JMR |
| Ulmus pumila | | Young tree/photo JMR |
| Urochloa decumbens | | Flowers/photo JMR |
| Utricularia inflata | | Emergent inflorescences/photo BAR |
| Utricularia inflata | | Flowers/photo BAR |
| Utricularia inflata | | Many bladders/photo BAR |
| Utricularia inflata | | Bladder--top view/photo BAR |
| Utricularia inflata | | Bladder--side side/photo BAR |
| Ventenata dubia | | Plant features/photo BAR (WYSIWYG--see note at bottom) |
| Ventenata dubia | | Infestation/photo JMR |
| Verbascum blattaria | | White flower/photo JMR |
| Verbascum blattaria | | Yellow flower/photo JMR |
| Verbascum thapsus | | Large flowering plants/photo JMR |
| Verbascum thapsus | | A first-year rosette/photo JMR |
| Verbascum thapsus | | Close-up of flowers/photo JMR |
| Verbascum thapsus | | A blight on a beautiful view/photo JMR |
| Verbascum thapsus | | Island invasion/photo JMR |
| Verbascum thapsus | | Wi/weed scientist's children/photo JMR |
| Verbascum thapsus | | Flower close-up/photo JMR |
| Verbascum thapsus | | Dominican Republic rosette/photo JMR |
| Verbascum thapsus | | Dominican Republic sunny invasion/photo JMR |
| Verbascum virgatum | | Flowers/photo JMR |
| Verbena bonariensis | | Plants/photo JMR |
| Verbena bonariensis | | One plant/photo BAR |
| Vinca major | | Flowers/photo BAR |
| Vinca major | | Leafy nasties/photo BAR |
| Vinca major and weed geek | | Flowers/photo JMR |
| Vinca major/V. minor | | Flower comparison/photo BAR |
| Vinca minor | | Flowers/photo JMR |
| Vincetoxicum nigrum | | Seedling/photo Charlotte Pyle (USDA) (*) |
| Vincetoxicum nigrum | | Leaves/photo Charlotte Pyle (USDA) (*) |
| Vincetoxicum nigrum | | Flowers/photo Charlotte Pyle (USDA) (*) |
| Vincetoxicum nigrum | | Fruit/photo Charlotte Pyle (USDA) (*) |
| Vincetoxicum nigrum | | Understory infestation/photo JMR |
| Watsonia bulbillifera | | Flowers/photo JMR |
| Watsonia bulbillifera | | Floral close-up/photo JMR |
| Watsonia bulbillifera | | Bulbils galore/photo JMR |
| Watsonia bulbillifera | | More flowers/photo JMR |
| Watsonia bulbillifera | | Big infestation/photo JMR |
| Wisteria floribunda | | Autumn leaves/photo BAR |
| Wisteria sinensis | | Fruiting pods/photo BAR |
| Wisteria sinensis | | Pods in space!/photo BAR |
| Wisteria sinensis | | Pods close up/photo BAR |
| Wisteria sinensis | | Seeds/photo BAR |
| Wisteria sinensis | | Leaves/photo BAR |
| Wisteria sinensis | | Shocked ecologist/photo BAR |
| Wisteria sinensis | | Strangling stem/photo BAR |
| Xanthium spinosum | | Painful plants/photo BAR |
| Xanthium spinosum | | Spiny branch/photo JMR |
| Xanthium spinosum | | Veined leaves/photo JMR |
| Xanthium strumarium | | Dreary plants/photo JMR |
| Xanthium strumarium | | Spiny cockleburs/photo JMR |
| Xanthium strumarium | | Fruiting branch/photo JMR |
| Xanthium strumarium | | Fruiting plant/photo JMR |
| Zantedeschia aethiopica | | Lily/photo JMR |
| Zantedeschia aethiopica | | Many lilies/photo JMR |
| Zantedeschia aethiopica | | Lot's o' lilies/photo JMR |
| Zantedeschia aethiopica | | Shady lilies/photo JMR |
| Zantedeschia aethiopica | | Lookin' at lilies/photo JMR |
| Zantedeschia aethiopica | | Midrange cluster/photo JMR |
| Zantedeschia aethiopica | | Pretty invasion/photo JMR |
| Zantedeschia aethiopica | | By a wetland/photo JMR |
| Zantedeschia aethiopica | | Flower in NZ/photo JMR |
Photos: Pol--Zan
