Richland County

Showing 501–550 of 874.

• 
  Oenothera nutans Atk. & Bartlett Native OENU2

  nodding evening primrose · Onagraceae
• 
  Oenothera perennis L. Native OEPE

  little evening primrose · Onagraceae
• 
  Oenothera pilosella Raf. Native OEPI2

  meadow evening primrose · Onagraceae
• 
  Oenothera pilosella Raf. ssp. pilosella Native OEPIP

  meadow evening primrose · Onagraceae
• 
  Onoclea sensibilis L. Native ONSE

  sensitive fern · Dryopteridaceae
• 
  Osmorhiza claytonii (Michx.) C.B. Clarke Native OSCL

  Clayton's sweetroot · Apiaceae
• 
  Osmorhiza longistylis (Torr.) DC. Native OSLO

  longstyle sweetroot · Apiaceae
• 
  Osmunda cinnamomea L. Native OSCI

  cinnamon fern · Osmundaceae
• 
  Osmunda cinnamomea L. var. cinnamomea Native OSCIC

  cinnamon fern · Osmundaceae
• 
  Osmunda claytoniana L. Native OSCL2

  interrupted fern · Osmundaceae
• 
  Osmunda regalis L. Native OSRE

  royal fern · Osmundaceae
• 
  Osmunda regalis L. var. spectabilis (Willd.) A. Gray Native OSRES

  royal fern · Osmundaceae
• 
  Ostrya virginiana (Mill.) K. Koch Native OSVI

  hophornbeam · Betulaceae
• 
  Oxalis stricta L. Native OXST

  common yellow oxalis · Oxalidaceae
• 
  Oxalis violacea L. Native OXVI

  violet woodsorrel · Oxalidaceae
• 
  Packera aurea (L.) Á. Löve & D. Löve Native PAAU3

  golden ragwort · Asteraceae
• 
  Packera obovata (Muhl. ex Willd.) W.A. Weber & Á. Löve Native PAOB6

  roundleaf ragwort · Asteraceae
• 
  Panax quinquefolius L. Native PAQU

  American ginseng · Araliaceae
• 
  Panax trifolius L. Native PATR2

  dwarf ginseng · Araliaceae
• 
  Panicum capillare L. Native PACA6

  witchgrass · Poaceae
• 
  Panicum dichotomiflorum Michx. Native PADI

  fall panicgrass · Poaceae
• 
  Panicum dichotomiflorum Michx. var. dichotomiflorum Native PADID

  fall panicgrass · Poaceae
• 
  Panicum miliaceum L. Introduced PAMI2

  proso millet · Poaceae
• 
  Panicum miliaceum L. ssp. miliaceum Introduced PAMIM

  broomcorn millet · Poaceae
• 
  Panicum virgatum L. Native PAVI2

  switchgrass · Poaceae
• 
  Panicum virgatum L. var. virgatum Native PAVIV

  switchgrass · Poaceae
• 
  Parietaria pensylvanica Muhl. ex Willd. Native PAPE5

  Pennsylvania pellitory · Urticaceae
• 
  Parthenocissus quinquefolia (L.) Planch. Native PAQU2

  Virginia creeper · Vitaceae
• 
  Pastinaca sativa L. Introduced PASA2

  wild parsnip · Apiaceae
• 
  Pedicularis canadensis L. Native PECA

  Canadian lousewort · Scrophulariaceae
• 
  Pedicularis canadensis L. ssp. canadensis Native PECAC3

  Canadian lousewort · Scrophulariaceae
• 
  Penstemon digitalis Nutt. ex Sims Native PEDI

  foxglove beardtongue · Scrophulariaceae
• 
  Penthorum sedoides L. Native PESE6

  ditch stonecrop · Crassulaceae
• 
  Perilla frutescens (L.) Britton Introduced PEFR4

  beefsteakplant · Lamiaceae
• 
  Perilla frutescens (L.) Britton var. frutescens Introduced PEFRF2

  beefsteakplant · Lamiaceae
• 
  Phacelia purshii Buckley Native PHPU3

  Miami mist · Hydrophyllaceae
• 
  Phalaris arundinacea L. Native PHAR3

  reed canarygrass · Poaceae
• 
  Phegopteris hexagonoptera (Michx.) Fée Native PHHE11

  broad beechfern · Thelypteridaceae
• 
  Phlox divaricata L. Native PHDI5

  wild blue phlox · Polemoniaceae
• 
  Phlox divaricata L. ssp. divaricata Native PHDID3

  wild blue phlox · Polemoniaceae
• 
  Phlox maculata L. Native PHMA4

  wild sweetwilliam · Polemoniaceae
• 
  Phlox paniculata L. Native PHPA9

  fall phlox · Polemoniaceae
• 
  Phryma leptostachya L. Native PHLE5

  American lopseed · Verbenaceae
• 
  Physalis heterophylla Nees Native PHHE5

  clammy groundcherry · Solanaceae
• 
  Physalis heterophylla Nees var. heterophylla Native PHHEH3

  clammy groundcherry · Solanaceae
• 
  Physocarpus opulifolius (L.) Maxim., orth. cons. Native PHOP

  common ninebark · Rosaceae
• 
  Physostegia virginiana (L.) Benth. Native PHVI8

  obedient plant · Lamiaceae
• 
  Phytolacca americana L. Native PHAM4

  American pokeweed · Phytolaccaceae
• 
  Phytolacca americana L. var. americana Native PHAMA3

  American pokeweed · Phytolaccaceae
• 
  Pilea pumila (L.) A. Gray Native PIPU2

  Canadian clearweed · Urticaceae