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Common Names		A-B •• C •• D-G •• H-M •• N-R •• S-T •• U-Z
Scientific Names		A-B •• C-D •• E-H •• I-O •• P-R •• S-Z

SCIENTIFIC NAME	COMMON NAME	FAMILY
Paspalum dilatatum	Dallisgrass	Poaceae
Peganum harmala	Harmal or African rue	Zygophyllaceae
Pennisetum ciliare	Buffelgrass	Poaceae
Pennisetum clandestinum	Kikuyugrass	Poaceae
Pennisetum setaceum	Crimson fountaingrass	Poaceae
Phalaris aquatica	Hardinggrass	Poaceae
Phalaris arundinacea	Reed canarygrass	Poaceae
Phoenix canariensis	Canary Island date palm	Arecaceae
Phragmites australis	Common reed	Poaceae
Phytolacca americana	Common pokeweed	Phytolaccaceae
Picris echioides	Bristly oxtongue	Asteraceae
Piptatherum miliaceum	Smilograss	Poaceae
Pittosporum undulatum	Victorian box	Pittosporaceae
Plantago lanceolata	Buckhorn plantain	Plantaginaceae
Poa bulbosa	Bulbous bluegrass	Poaceae
Poa pratensis	Kentucky bluegrass	Poaceae
Polygonum arenastrum	Prostrate knotweed	Polygonaceae
Polygonum convolvulus	Wild buckwheat	Polygonaceae
Polygonum cuspidatum	Japanese knotweed	Polygonaceae
Polygonum lapathifolium	Pale smartweed	Polygonaceae
Polygonum persicaria	Ladysthumb	Polygonaceae
Polygonum polystachyum	Himalayan knotweed	Polygonaceae
Polygonum sachalinense	Sakhalin or giant knotweed	Polygonaceae
Polygonum x bohemicum	Bohemian knotweed	Polygonaceae
Polypogon monspeliensis	Rabbitfoot polypogon	Poaceae
Potamogeton crispus	Curlyleaf pondweed	Potamogetonaceae
Potamogeton foliosus	Leafy pondweed	Potamogetonaceae
Potamogeton illinoensis	Illinois pondweed	Potamogetonaceae
Potamogeton natans	Floatingleaf pondweed	Potamogetonaceae
Potamogeton nodosus	American pondweed	Potamogetonaceae
Potentilla recta	Sulfur cinquefoil	Rosaceae
Prunus cerasifera	Cherry plum	Rosaceae
Pyracanthaspp.	Pyracantha or firethorn	Rosaceae
Ranunculus acris	Tall buttercup	Ranunculaceae
Ranunculus repens	Creeping buttercup	Ranunculaceae
Ranunculus testiculatus	Bur buttercup	Ranunculaceae
Raphanus raphanistrum	Wild radish	Brassicaceae
Raphanus sativus	Radish	Brassicaceae
Ricinus communis	Castorbean	Euphorbiaceae
Robinia pseudoacacia	Black locust	Fabaceae
Rosa canina	Dog rose	Rosaceae
Rosa eglanteria	Sweetbriar rose	Rosaceae
Rosa multiflora	Multiflora rose	Rosaceae
Rubus armeniacus	Himalaya blackberry	Rosaceae
Rumex acetosella	Red or sheep sorrel	Polygonaceae
Rumex crispus	Curly dock	Polygonaceae
Rumex obtusifolius	Broadleaf dock	Polygonaceae
Ruppia maritima	Widgeongrass	Potamogetonaceae or Ruppiaceae