Montgomery County

Showing 451–500 of 748.

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  Ostrya virginiana (Mill.) K. Koch Native OSVI

  hophornbeam · Betulaceae
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  Oxalis dillenii Jacq. Native OXDI2

  slender yellow woodsorrel · Oxalidaceae
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  Oxalis grandis Small Native OXGR

  great yellow woodsorrel · Oxalidaceae
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  Oxalis stricta L. Native OXST

  common yellow oxalis · Oxalidaceae
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  Oxalis violacea L. Native OXVI

  violet woodsorrel · Oxalidaceae
• 
  Oxypolis rigidior (L.) Raf. Native OXRI

  stiff cowbane · Apiaceae
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  Packera aurea (L.) Á. Löve & D. Löve Native PAAU3

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

  roundleaf ragwort · Asteraceae
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  Panax quinquefolius L. Native PAQU

  American ginseng · Araliaceae
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  Panicum capillare L. Native PACA6

  witchgrass · Poaceae
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  Panicum dichotomiflorum Michx. Native PADI

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

  fall panicgrass · Poaceae
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  Parnassia glauca Raf. Native PAGL3

  fen grass of Parnassus · Saxifragaceae
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  Parthenocissus quinquefolia (L.) Planch. Native PAQU2

  Virginia creeper · Vitaceae
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  Passiflora lutea L. Native PALU2

  yellow passionflower · Passifloraceae
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  Pastinaca sativa L. Introduced PASA2

  wild parsnip · Apiaceae
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  Pedicularis canadensis L. Native PECA

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

  Canadian lousewort · Scrophulariaceae
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  Pedicularis lanceolata Michx. Native PELA2

  swamp lousewort · Scrophulariaceae
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  Pellaea glabella Mett. ex Kuhn Native PEGL

  smooth cliffbrake · Pteridaceae
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  Pellaea glabella Mett. ex Kuhn ssp. glabella Native PEGLG

  smooth cliffbrake · Pteridaceae
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  Penstemon calycosus Small Native PECA7

  longsepal beardtongue · Scrophulariaceae
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  Penstemon digitalis Nutt. ex Sims Native PEDI

  foxglove beardtongue · Scrophulariaceae
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  Penstemon hirsutus (L.) Willd. Native PEHI

  hairy beardtongue · Scrophulariaceae
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  Penthorum sedoides L. Native PESE6

  ditch stonecrop · Crassulaceae
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  Phacelia purshii Buckley Native PHPU3

  Miami mist · Hydrophyllaceae
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  Phegopteris hexagonoptera (Michx.) Fée Native PHHE11

  broad beechfern · Thelypteridaceae
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  Phlox divaricata L. Native PHDI5

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

  wild blue phlox · Polemoniaceae
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  Phlox maculata L. Native PHMA4

  wild sweetwilliam · Polemoniaceae
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  Phlox pilosa L. Native PHPI

  downy phlox · Polemoniaceae
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  Phlox pilosa L. ssp. pilosa Native PHPIP2

  downy phlox · Polemoniaceae
• 
  Phryma leptostachya L. Native PHLE5

  American lopseed · Verbenaceae
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  Phyla lanceolata (Michx.) Greene Native PHLA3

  lanceleaf fogfruit · Verbenaceae
• 
  Physalis heterophylla Nees Native PHHE5

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

  clammy groundcherry · Solanaceae
• 
  Physalis longifolia Nutt. Native PHLO4

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

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

  obedient plant · Lamiaceae
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  Phytolacca americana L. Native PHAM4

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

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

  Canadian clearweed · Urticaceae
• 
  Pilea pumila (L.) A. Gray var. pumila Native PIPUP

  Canadian clearweed · Urticaceae
• 
  Plantago arenaria Waldst. & Kit. Introduced PLAR6

  sand plantain · Plantaginaceae
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  Plantago aristata Michx. Native PLAR3

  largebracted plantain · Plantaginaceae
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  Plantago lanceolata L. Introduced PLLA

  narrowleaf plantain · Plantaginaceae
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  Plantago rugelii Decne. Native PLRU

  blackseed plantain · Plantaginaceae
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  Plantago rugelii Decne. var. rugelii Native PLRUR

  blackseed plantain · Plantaginaceae
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  Platanus occidentalis L. Native PLOC

  American sycamore · Platanaceae
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  Poa sylvestris A. Gray Native POSY

  woodland bluegrass · Poaceae