§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 1,251–1,300 of 1,877.
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Platanthera flava (L.) Lindl. var. herbiola (R. Br.) Luer Native PLFLHpalegreen orchid · Orchidaceae 3 counties -
Platanthera grandiflora (Bigelow) Lindl. Native PLGR2greater purple fringed orchid · Orchidaceae 2 counties -
Platanthera hookeri (Torr. ex A. Gray) Lindl. Native PLHO3Hooker's orchid · Orchidaceae 1 county -
Platanthera huronensis (Nutt.) Lindl. Native PLHU2Huron green orchid · Orchidaceae 1 county -
Platanthera orbiculata (Pursh) Lindl. Native PLOR4lesser roundleaved orchid · Orchidaceae 1 county -
Platanthera psycodes (L.) Lindl. Native PLPS2lesser purple fringed orchid · Orchidaceae 2 counties -
Platanus occidentalis L. Native PLOCAmerican sycamore · Platanaceae 3 counties -
Pluchea odorata (L.) Cass. Native PLODsweetscent · Asteraceae 4 counties - Pluchea odorata (L.) Cass. var. succulenta (Fernald) Cronquist Native PLODSsweetscent · Asteraceae 4 counties
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Poa annua L. Introduced POANannual bluegrass · Poaceae 5 counties -
Poa compressa L. Introduced POCOCanada bluegrass · Poaceae 5 counties -
Poa palustris L. Native POPA2fowl bluegrass · Poaceae 3 counties -
Poa pratensis L. Both POPRKentucky bluegrass · Poaceae 5 counties - Poa pratensis L. ssp. pratensis Introduced POPRP2Kentucky bluegrass · Poaceae 5 counties
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Poa saltuensis Fernald & Wiegand Native POSAoldpasture bluegrass · Poaceae 1 county -
Poa trivialis L. Introduced POTR2rough bluegrass · Poaceae 3 counties -
Podostemum ceratophyllum Michx. Native POCE3hornleaf riverweed · Podostemaceae 1 county -
Pogonia ophioglossoides (L.) Ker Gawl. Native POOPsnakemouth orchid · Orchidaceae 3 counties -
Polemonium reptans L. Native PORE2Greek valerian · Polemoniaceae 1 county - Polemonium reptans L. var. reptans Native PORERGreek valerian · Polemoniaceae 1 county
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Polygala cruciata L. Native POCRdrumheads · Polygalaceae 2 counties - Polygala cruciata L. var. aquilonia Fernald & B.G. Schub. Native POCRAdrumheads · Polygalaceae 2 counties
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Polygala nuttallii Torr. & A. Gray Native PONU2Nuttall's milkwort · Polygalaceae 3 counties -
Polygala paucifolia Willd. Native POPA5gaywings · Polygalaceae 1 county -
Polygala polygama Walter Native POPOracemed milkwort · Polygalaceae 5 counties -
Polygala sanguinea L. Native POSA3purple milkwort · Polygalaceae 5 counties -
Polygala verticillata L. Native POVEwhorled milkwort · Polygalaceae 3 counties -
Polygonatum pubescens (Willd.) Pursh Native POPU4hairy Solomon's seal · Liliaceae 4 counties -
Polygonella articulata (L.) Meisn. Native POAR4coastal jointweed · Polygonaceae 4 counties -
Polygonum amphibium L. Native POAM8water knotweed · Polygonaceae 1 county -
Polygonum arifolium L. Native POAR6halberdleaf tearthumb · Polygonaceae 3 counties -
Polygonum aviculare L. Introduced POAVprostrate knotweed · Polygonaceae 5 counties -
Polygonum careyi Olney Native POCA8Carey's smartweed · Polygonaceae 3 counties -
Polygonum cilinode Michx. Native POCIfringed black bindweed · Polygonaceae 1 county -
Polygonum convolvulus L. Introduced POCO10black bindweed · Polygonaceae 4 counties -
Polygonum cuspidatum Siebold & Zucc. Introduced POCU6Japanese knotweed · Polygonaceae 5 counties -
Polygonum erectum L. Native POER2erect knotweed · Polygonaceae 3 counties -
Polygonum glaucum Nutt. Native POGL7seaside knotweed · Polygonaceae 1 county -
Polygonum hydropiper L. Introduced POHYmarshpepper knotweed · Polygonaceae 4 counties - Polygonum hydropiperoides Michx. Native POHY2swamp smartweed · Polygonaceae 4 counties
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Polygonum lapathifolium L. Native POLA4curlytop knotweed · Polygonaceae 4 counties -
Polygonum orientale L. Introduced POOR2kiss me over the garden gate · Polygonaceae 2 counties -
Polygonum pensylvanicum L. Native POPE2Pennsylvania smartweed · Polygonaceae 5 counties - Polygonum persicaria L. Introduced POPE3spotted ladysthumb · Polygonaceae 3 counties
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Polygonum punctatum Elliott Native POPU5dotted smartweed · Polygonaceae 4 counties -
Polygonum ramosissimum Michx. Native PORA3bushy knotweed · Polygonaceae 5 counties -
Polygonum robustius (Small) Fernald Native POROstout smartweed · Polygonaceae 2 counties -
Polygonum sachalinense F. Schmidt ex Maxim. Introduced POSA4giant knotweed · Polygonaceae 1 county -
Polygonum sagittatum L. Native POSA5arrowleaf tearthumb · Polygonaceae 4 counties -
Polygonum scandens L. Both POSC3climbing false buckwheat · Polygonaceae 5 counties