§1State listing — Northeast
Rhode Island
a regional flora of 5 counties
- State code
- RI · FIPS 44
- Taxa recorded
- 1,877
- Counties
- 5
§2Counties
Drill down to a county
§3Catalogue
All taxa recorded in Rhode Island
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Showing 1,301–1,350 of 1,877.
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Polygonum setaceum Baldw. Native POSE6bog smartweed · Polygonaceae 1 county -
Polygonum tenue Michx. Native POTE2pleatleaf knotweed · Polygonaceae 2 counties -
Polygonum virginianum L. Native POVI2jumpseed · Polygonaceae 2 counties -
Polypodium virginianum L. Native POVI7rock polypody · Polypodiaceae 3 counties - Polypodium ×incognitum Cusick [appalachianum × virginianum] Native POIN6Hybrid rock polypody · Polypodiaceae 4 counties
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Polystichum acrostichoides (Michx.) Schott Native POAC4Christmas fern · Dryopteridaceae 4 counties - Polystichum acrostichoides (Michx.) Schott var. acrostichoides Native POACAChristmas fern · Dryopteridaceae 4 counties
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Pontederia cordata L. Native POCO14pickerelweed · Pontederiaceae 4 counties -
Populus alba L. Introduced POAL7white poplar · Salicaceae 4 counties -
Populus balsamifera L. Native POBA2balsam poplar · Salicaceae 1 county - Populus balsamifera L. ssp. balsamifera Native POBAB2balsam poplar · Salicaceae 1 county
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Populus deltoides W. Bartram ex Marshall Native PODE3eastern cottonwood · Salicaceae 3 counties - Populus deltoides W. Bartram ex Marshall ssp. deltoides Native PODEDeastern cottonwood · Salicaceae 3 counties
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Populus grandidentata Michx. Native POGR4bigtooth aspen · Salicaceae 5 counties -
Populus nigra L. Introduced PONILombardy poplar · Salicaceae 1 county -
Populus tremuloides Michx. Native POTR5quaking aspen · Salicaceae 5 counties - Populus ×canescens (Aiton) Sm. (pro sp.) [alba × tremula] Introduced POCA14gray poplar · Salicaceae 1 county
- Populus ×jackii Sarg. [balsamifera × deltoides] Native POJA2balm-of-Gilead · Salicaceae 2 counties
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Portulaca grandiflora Hook. Introduced POGR7rose moss · Portulacaceae 1 county -
Portulaca oleracea L. Both POOLlittle hogweed · Portulacaceae 1 county -
Potamogeton bicupulatus Fernald Native POBI9snailseed pondweed · Potamogetonaceae 5 counties -
Potamogeton confervoides Rchb. Native POCO12Tuckerman's pondweed · Potamogetonaceae 2 counties -
Potamogeton epihydrus Raf. Native POEP2ribbonleaf pondweed · Potamogetonaceae 5 counties -
Potamogeton foliosus Raf. Native POFO3leafy pondweed · Potamogetonaceae 1 county - Potamogeton foliosus Raf. ssp. foliosus Native POFOF4leafy pondweed · Potamogetonaceae 1 county
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Potamogeton gramineus L. Native POGR8variableleaf pondweed · Potamogetonaceae 2 counties -
Potamogeton natans L. Native PONA4floating pondweed · Potamogetonaceae 2 counties -
Potamogeton oakesianus J.W. Robbins Native POOAOakes' pondweed · Potamogetonaceae 3 counties -
Potamogeton obtusifolius Mert. & W.D.J. Koch Native POOB2bluntleaf pondweed · Potamogetonaceae 2 counties -
Potamogeton perfoliatus L. Native POPE7claspingleaf pondweed · Potamogetonaceae 5 counties -
Potamogeton pulcher Tuck. Native POPU6spotted pondweed · Potamogetonaceae 3 counties -
Potamogeton pusillus L. Native POPU7small pondweed · Potamogetonaceae 2 counties - Potamogeton pusillus L. ssp. gemmiparus (J.W. Robbins) Haynes & C.B. Hellquist Native POPUG4small pondweed · Potamogetonaceae 1 county
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Potamogeton robbinsii Oakes Native PORO2Robbins' pondweed · Potamogetonaceae 2 counties -
Potamogeton spirillus Tuck. Native POSP3spiral pondweed · Potamogetonaceae 4 counties -
Potentilla argentea L. Introduced POAR8silver cinquefoil · Rosaceae 4 counties - Potentilla argentea L. var. argentea Introduced POARA3silver cinquefoil · Rosaceae 4 counties
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Potentilla canadensis L. Native POCA17dwarf cinquefoil · Rosaceae 4 counties - Potentilla canadensis L. var. canadensis Native POCAC2dwarf cinquefoil · Rosaceae 4 counties
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Potentilla intermedia L. Introduced POIN8downy cinquefoil · Rosaceae 1 county -
Potentilla norvegica L. Native PONO3Norwegian cinquefoil · Rosaceae 5 counties - Potentilla norvegica L. ssp. monspeliensis (L.) Asch. & Graebn. Native PONOMNorwegian cinquefoil · Rosaceae 5 counties
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Potentilla recta L. Introduced PORE5sulphur cinquefoil · Rosaceae 4 counties -
Potentilla simplex Michx. Native POSI2common cinquefoil · Rosaceae 5 counties -
Prenanthes altissima L. Native PRAL3tall rattlesnakeroot · Asteraceae 2 counties -
Prenanthes serpentaria Pursh Native PRSEcankerweed · Asteraceae 3 counties -
Prenanthes trifoliolata (Cass.) Fernald Native PRTRgall of the earth · Asteraceae 4 counties -
Proboscidea louisianica (Mill.) Thell. Native PRLOram's horn · Pedaliaceae 1 county - Proboscidea louisianica (Mill.) Thell. ssp. louisianica Native PRLOLram's horn · Pedaliaceae 1 county
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Proserpinaca palustris L. Native PRPA3marsh mermaidweed · Haloragaceae 3 counties