Polk County

Showing 551–600 of 743.

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  Ratibida columnifera (Nutt.) Wooton & Standl. Native RACO3

  upright prairie coneflower · Asteraceae
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  Rhexia mariana L. Native RHMA

  Maryland meadowbeauty · Melastomataceae
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  Rhexia mariana L. var. mariana Native RHMAM2

  Maryland meadowbeauty · Melastomataceae
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  Rhododendron canescens (Michx.) Sweet Native RHCA7

  mountain azalea · Ericaceae
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  Rhododendron viscosum (L.) Torr. Native RHVI2

  swamp azalea · Ericaceae
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  Rhus aromatica Aiton Native RHAR4

  fragrant sumac · Anacardiaceae
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  Rhus aromatica Aiton var. aromatica Native RHARA2

  fragrant sumac · Anacardiaceae
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  Rhus copallinum L. Native RHCO

  winged sumac · Anacardiaceae
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  Rhus copallinum L. var. latifolia Engl. Native RHCOL2

  winged sumac · Anacardiaceae
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  Rhus glabra L. Native RHGL

  smooth sumac · Anacardiaceae
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  Rhynchosia latifolia Nutt. ex Torr. & A. Gray Native RHLA5

  prairie snoutbean · Fabaceae
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  Rhynchosia minima (L.) DC. Native RHMI4

  least snoutbean · Fabaceae
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  Rhynchosia reniformis DC. Native RHRE

  dollarleaf · Fabaceae
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  Rhynchospora caduca Elliott Native RHCA9

  anglestem beaksedge · Cyperaceae
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  Rhynchospora corniculata (Lam.) A. Gray Native RHCO2

  shortbristle horned beaksedge · Cyperaceae
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  Rhynchospora globularis (Chapm.) Small Native RHGL2

  globe beaksedge · Cyperaceae
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  Rhynchospora glomerata (L.) Vahl Native RHGL3

  clustered beaksedge · Cyperaceae
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  Rhynchospora gracilenta A. Gray Native RHGR

  slender beaksedge · Cyperaceae
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  Rhynchospora harveyi W. Boott Native RHHA

  Harvey's beaksedge · Cyperaceae
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  Rhynchospora harveyi W. Boott var. harveyi Native RHHAH

  Harvey's beaksedge · Cyperaceae
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  Rhynchospora inexpansa (Michx.) Vahl Native RHIN4

  nodding beaksedge · Cyperaceae
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  Rhynchospora mixta Britton Native RHMI9

  mingled beaksedge · Cyperaceae
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  Rhynchospora pusilla Chapm. ex M.A. Curtis Native RHPU3

  fairy beaksedge · Cyperaceae
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  Rhynchospora rariflora (Michx.) Elliott Native RHRA2

  fewflower beaksedge · Cyperaceae
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  Richardia scabra L. Native RISC

  rough Mexican clover · Rubiaceae
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  Rubus apogaeus L.H. Bailey Native RUAP

  falling dewberry · Rosaceae
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  Rubus trivialis Michx. Native RUTR

  southern dewberry · Rosaceae
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  Rudbeckia grandiflora (D. Don) J.F. Gmel. ex DC. Native RUGR

  rough coneflower · Asteraceae
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  Rudbeckia hirta L. Native RUHI2

  blackeyed Susan · Asteraceae
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  Rudbeckia missouriensis Engelm. ex C.L. Boynt. & Beadle Native RUMI

  Missouri orange coneflower · Asteraceae
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  Ruellia humilis Nutt. Native RUHU

  fringeleaf wild petunia · Acanthaceae
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  Ruellia pedunculata Torr. ex A. Gray Native RUPE4

  stalked wild petunia · Acanthaceae
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  Ruellia strepens L. Native RUST2

  limestone wild petunia · Acanthaceae
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  Sabatia campestris Nutt. Native SACA3

  Texas star · Gentianaceae
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  Sabatia gentianoides Elliott Native SAGE

  pinewoods rose gentian · Gentianaceae
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  Saccharum brevibarbe (Michx.) Pers. Native SABR18

  shortbeard plumegrass · Poaceae
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  Sagittaria brevirostra Mack. & Bush Native SABR8

  shortbeak arrowhead · Alismataceae
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  Sagittaria latifolia Willd. Native SALA2

  broadleaf arrowhead · Alismataceae
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  Sagittaria papillosa Buchenau Native SAPA2

  nipplebract arrowhead · Alismataceae
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  Sagittaria platyphylla (Engelm.) J.G. Sm. Native SAPL

  delta arrowhead · Alismataceae
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  Salvia lyrata L. Native SALY2

  lyreleaf sage · Lamiaceae
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  Sanicula canadensis L. Native SACA15

  Canadian blacksnakeroot · Apiaceae
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  Sanicula odorata (Raf.) K.M. Pryer & L.R. Phillippe Native SAOD

  clustered blacksnakeroot · Apiaceae
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  Sanicula smallii E.P. Bicknell Native SASM

  Small's blacksnakeroot · Apiaceae
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  Sarracenia alata Alph. Wood Native SAAL4

  yellow trumpets · Sarraceniaceae
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  Sassafras albidum (Nutt.) Nees Native SAAL5

  sassafras · Lauraceae
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  Saururus cernuus L. Native SACE

  lizard's tail · Saururaceae
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  Schedonorus arundinaceus (Schreb.) Dumort., nom. cons. Introduced SCAR7

  tall fescue · Poaceae
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  Scirpus cyperinus (L.) Kunth Native SCCY

  woolgrass · Cyperaceae
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  Scirpus pendulus Muhl. Native SCPE4

  rufous bulrush · Cyperaceae