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ISM System :ISM Herbarium: Holdings begining with "P"
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Choose one of the letters above to browse the genera beginning with that letter.
Panax
Panicum
Papaver
Parietaria
Parnassia
Paronychia
Parthenium
Parthenocissus
Paspalum
Passiflora
Pastinaca
Paulownia
Pedicularis
Pelea
Pellaea
Peltandra
Pennisetum
Penstemon
Penthorum
Peplis
Perideridia
Perilla
Petroselinum
Petunia
Phacelia
Phalaris
Phaseolus
Phegopteris
Phleum
Phlox
Phragmites
Phryma
Phyla
Phyllanthus
Physalis
Physocarpus
Physostegia
Phytolacca
Picea
Pilea
Pinus
Pisum
Plagiobothrys
Planera
Plantago
Platanthera
Platanus
Platycladus
Platycodon
Pleopeltis
Pluchea
Poa
Podophyllum
Pogonia
Polanisia
Polemonium
Polianthes
Polygala
Polygonatum
Polygonella
Polygonum
Polymnia
Polypodium
Polystichum
Polytaenia
Pontederia
Populus
Porteranthus
Portulaca
Potamogeton
Potentilla
Prenanthes
Primula
Proboscidea
Proserpinaca
Prunella
Prunus
Psoralea
Psoralidium
Ptelea
Pteridium
Pterocarpus
Ptilimnium
Puccinellia
Pueraria
Pulsatilla
Pycnanthemum
Pyrola
Pyrrhopappus
Pyrus
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