Cook County

Showing 251–300 of 359.

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  Piriqueta cistoides (L.) Griseb. Native PICI

  pitted stripeseed · Turneraceae
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  Piriqueta cistoides (L.) Griseb. ssp. caroliniana (Walter) Arbo Native PICIC

  pitted stripeseed · Turneraceae
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  Pityopsis aspera (Shuttlw. ex Small) Small Native PIAS2

  pineland silkgrass · Asteraceae
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  Pityopsis graminifolia (Michx.) Nutt. Native PIGR4

  narrowleaf silkgrass · Asteraceae
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  Planera aquatica J.F. Gmel. Native PLAQ

  planertree · Ulmaceae
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  Plantago lanceolata L. Introduced PLLA

  narrowleaf plantain · Plantaginaceae
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  Platanthera ciliaris (L.) Lindl. Native PLCI2

  yellow fringed orchid · Orchidaceae
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  Platanthera nivea (Nutt.) Luer Native PLNI

  snowy orchid · Orchidaceae
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  Platanus occidentalis L. Native PLOC

  American sycamore · Platanaceae
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  Pleopeltis polypodioides (L.) Andrews & Windham Native PLPO2

  resurrection fern · Polypodiaceae
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  Pleopeltis polypodioides (L.) Andrews & Windham ssp. michauxiana (Weath.) Andrews & Windham Native PLPOM

  resurrection fern · Polypodiaceae
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  Pluchea foetida (L.) DC. Native PLFO

  stinking camphorweed · Asteraceae
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  Poa annua L. Introduced POAN

  annual bluegrass · Poaceae
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  Polygala grandiflora Walter Native POGR11

  showy milkwort · Polygalaceae
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  Polygala grandiflora Walter var. grandiflora Native POGRG2

  showy milkwort · Polygalaceae
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  Polygala lutea L. Native POLU

  orange milkwort · Polygalaceae
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  Polygala nana (Michx.) DC. Native PONA2

  candyroot · Polygalaceae
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  Polygala ramosa Elliott Native PORA2

  low pinebarren milkwort · Polygalaceae
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  Polypogon monspeliensis (L.) Desf. Introduced POMO5

  annual rabbitsfoot grass · Poaceae
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  Proserpinaca palustris L. Native PRPA3

  marsh mermaidweed · Haloragaceae
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  Proserpinaca pectinata Lam. Native PRPE

  combleaf mermaidweed · Haloragaceae
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  Pseudognaphalium obtusifolium (L.) Hilliard & B.L. Burtt Native PSOB3

  rabbit-tobacco · Asteraceae
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  Pseudognaphalium obtusifolium (L.) Hilliard & B.L. Burtt ssp. obtusifolium Native PSOBO

  rabbit-tobacco · Asteraceae
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  Pycnanthemum incanum (L.) Michx. Native PYIN

  hoary mountainmint · Lamiaceae
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  Pycnanthemum nudum Nutt. Native PYNU

  coastal plain mountainmint · Lamiaceae
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  Quercus geminata Small Native QUGE2

  sand live oak · Fagaceae
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  Quercus hemisphaerica W. Bartram ex Willd. Native QUHE2

  Darlington oak · Fagaceae
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  Quercus incana W. Bartram Native QUIN

  bluejack oak · Fagaceae
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  Quercus laevis Walter Native QULA2

  turkey oak · Fagaceae
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  Quercus laurifolia Michx. Native QULA3

  laurel oak · Fagaceae
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  Quercus nigra L. Native QUNI

  water oak · Fagaceae
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  Quercus pumila Walter Native QUPU80

  running oak · Fagaceae
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  Quercus stellata Wangenh. Native QUST

  post oak · Fagaceae
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  Rhexia alifanus Walter Native RHAL4

  savannah meadowbeauty · Melastomataceae
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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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  Rhexia virginica L. Native RHVI

  handsome Harry · Melastomataceae
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  Rhododendron viscosum (L.) Torr. Native RHVI2

  swamp azalea · Ericaceae
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  Rhynchosia reniformis DC. Native RHRE

  dollarleaf · Fabaceae
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  Rhynchosia tomentosa (L.) Hook. & Arn. Native RHTO3

  twining snoutbean · Fabaceae
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  Rhynchospora chalarocephala Fernald & Gale Native RHCH2

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

  shortbristle horned beaksedge · Cyperaceae
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  Rhynchospora latifolia (Baldw. ex Elliott) W.W. Thomas Native RHLA7

  sandswamp whitetop · Cyperaceae
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  Rubus cuneifolius Pursh Native RUCU

  sand blackberry · Rosaceae
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  Rudbeckia mohrii A. Gray Native RUMO6

  Mohr's coneflower · Asteraceae
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  Ruellia caroliniensis (J.F. Gmel.) Steud. Native RUCA4

  Carolina wild petunia · Acanthaceae
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  Rumex crispus L. Introduced RUCR

  curly dock · Polygonaceae
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  Rumex crispus L. ssp. crispus Introduced RUCRC

  curly dock · Polygonaceae
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  Sabatia bartramii Wilbur Native SABA8

  Bartram's rose gentian · Gentianaceae
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  Sabatia brevifolia Raf. Native SABR10

  shortleaf rose gentian · Gentianaceae