Weed Herbarium – by Scientific Name

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Phragmites
Phragmites communis see - Phragmites australis
Phragmites australis common reed Poaceae (Graminae) - Grass Family
Phytolacca
Phytolacca americana common pokeweed Phytolaccaceae - Pokeweed Family
Pilea
Pilea pumila clearweed Urticaceae - Nettle Family
Plantago
Plantago lanceolata narrowleaf plantain Plantaginaceae - Plantain Family
Plantago major broadleaf plantain Plantaginaceae - Plantain Family
Poa
Poa annua annual bluegrass Poaceae (Graminae) - Grass Family
Poa bulbosa bulbous bluegrass Poaceae (Graminae) - Grass Family
Polygonum
Polygonum virginianum see - Tovara virginiana
Polygonum arifolium Halberd-leaved tearthumb Polygonaceae - Smartweed or Buckwheat Family
Polygonum aviculare prostrate knotweed Polygonaceae - Smartweed or Buckwheat Family
Polygonum cilinode black fringed knotweed Polygonaceae - Smartweed or Buckwheat Family
Polygonum convolvulus wild buckwheat Polygonaceae - Smartweed or Buckwheat Family
Polygonum cuspidatum Japanese knotweed Polygonaceae - Smartweed or Buckwheat Family
Polygonum pensylvanicum Pennsylvania smartweed Polygonaceae - Smartweed or Buckwheat Family
Polygonum persicaria lady's thumb smartweed Polygonaceae - Smartweed or Buckwheat Family
Polygonum sachalinense giant knotweed Polygonaceae - Smartweed or Buckwheat Family
Polygonum sagittatum arrowleaf tear-thumb Polygonaceae - Smartweed or Buckwheat Family
Polygonum scandens hedge smartweed Polygonaceae - Smartweed or Buckwheat Family
Portulaca
Portulaca oleracea common purslane Portulacaceae - Purslane Family
Potentilla
Potentilla argentea silvery cinquefoil Rosaceae - Rose Family
Potentilla norvegica rough cinquefoil Rosaceae - Rose Family
Potentilla recta sulfur cinquefoil Rosaceae - Rose Family
Potentilla simplex old field cinquefoil Rosaceae - Rose Family
Prunella
Prunella vulgaris heal-all Lamiaceae (Labiatae) - Mint Family
Pteridium
Pteridium aquilinum bracken fern Polypodiaceae - Fern Family
Pueraria
Pueraria lobata see - Pueraria montana
Pueraria montana kudzu Fabaceae (Leguminosae) - Pea or Bean Family
Ranunculus
Ranunculus abortivus smallflower buttercup Ranunculaceae - Buttercup Family
Ranunculus acris tall buttercup Ranunculaceae - Buttercup Family
Ranunculus bulbosus bulbous buttercup Ranunculaceae - Buttercup Family
Ranunculus ficaria lesser celadine Ranunculaceae - Buttercup Family
Ranunculus repens creeping buttercup Ranunculaceae - Buttercup Family
Raphanus
Raphanus raphanistrum wild radish Brassicaceae (Cruciferae) - Mustard Family
Rhinanthus
Rhinanthus crista-galli see - Rhinanthus minor
Rhinanthus minor yellow-rattle Scrophulariaceae - Figwort Family
Rhus
Rhus radicans see - Toxicodendron radicans
Rhus glabra smooth sumac Anacardiaceae - Cashew Family
Rhus typhina staghorn sumac Anacardiaceae - Cashew Family
Robinia
Robinia hispida bristly locust Fabaceae (Leguminosae) - Pea or Bean Family
Rorippa
Rorippa palustris marsh yellowcress Brassicaceae (Cruciferae) - Mustard Family
Rorippa x prostrata prostrate fieldcress Brassicaceae (Cruciferae) - Mustard Family
Rosa
Rosa multiflora multiflora rose Rosaceae - Rose Family
Rubus
Rubus odoratus purple-flowering raspberry Rosaceae - Rose Family
Rubus phoenicolasius wine raspberry wineberry Rosaceae - Rose Family
Rudbeckia
Rudbeckia hirta black-eyed susan Asteraceae (Compositae) - Aster or Sunflower Family
Rumex
Rumex acetosella red sorrel Polygonaceae - Smartweed or Buckwheat Family
Rumex crispus curly dock Polygonaceae - Smartweed or Buckwheat Family
Rumex obtusifolius broadleaf dock Polygonaceae - Smartweed or Buckwheat Family
Sagina
Sagina procumbens birdseye pearlwort Caryophyllaceae - Pink Family

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