Paspalum dissectum Poaceae 763 -- leafy infl 2-5dm; lvs not hairy

Paspalum distichum (knotgrass) Poaceae 765 -- 2-5dm; lvs not hairy

Paspalum floridanum Poaceae 764 -- 10-20 dm lower spikes w long lf stalks

Paspalum laeve Poaceae 764 -- 3-8 dm spikelets solitary; lvs hairy on lower margined

Paspalum setaceum Poaceae 764 -- very long, terminal fl stalk; 3-10-dm; lvs hairy margined

Pastinaca sativa (wild parsnip) Apiaceae (5 5 5 2) 357 -- stem stout, grooved

Paulownia tomentosa (empress tree) Bignoniaceae ((5) (5) 2+2 1 hypo) 461 -- lvs w/ 2 very small side lobes

Pedaliaceae (sesame) -- Proboscidea, Sesamum

Pedicularis canadensis (wood betony or forest lousewort) Scrophulariaceae/Euphrasieae ((5) (5) 2+2 1 stigma 1) 457 -- AL w/ petioles; hairy stem

Pedicularis lanceolata (swamp lousewort) Scrophulariaceae/Euphrasieae ((5) (5) 2+2 1 stigma 1) 457 -- OL sessile

Pellaea atropurpurea (purple cliff brake) Adiantaceae 016 -- lf stalk twice-cut; sub opp; pointed, bluish-gray green fern

Pellaea glabella (smooth cliff brake) Adiantaceae 016

Peltandra virginica (arrow arum) Araceae (spathe & spadix) 615 -- infl green, lflike envelope; BE arrow-shaped w/ margin

Penguicula vulgaris (violet butterwort) Bignoniaceae ((5) (5) 2+2 1 hypo) 462 --

Penstemon cobaea (beardtongue) 444 --

Penstemon digitalis (foxglove beardtongue) 445--stm smth; OT; wh/ prpl-tnged fls 1" long

Penstemon grandiflorus (large beardtongue) 444 --

Penstemon hirsutus (hairy beardtongue) 444 -- stem covered w whitish hairs; OT

Penstemon laevigatus (smooth beardtongue) 445 -- stm smthish; OT; ple-prpl/violt, 3/4"

Penstemon pallidus (eastern white beardtongue) 445 --

Penstemon sp. (beardtongue) Scrophulariaceae /Scrophularieae ((5) (5) 4+1 1 stigma 1) --

Penstemon tubiflorus (tube beardtongue) 444 -- Penthorum sedoides (ditch stonecrop) Saxifragaceae (0or5 5 10 2+ peri) 211 -- yellowish-green fls; AT lance or elliptic

Perilla frutescens (perilla mint) Lamiaceae ((5) (5) 2+2 1) 419 --

Petasites frigidus (northern sweet coltsfoot) Asteracae/Senecioneae 528 -- fls cream-colored appearing in spring before lvs; swamps, wet woods

Petasites hybridus (butterfly dock sweet coltsfoot) Asteracae/Senecioneae 528 --

Petasites sagittatus (arrowhead sweet coltsfoot) Asteracae/Senecioneae 529 --

Petrorhagia prolifera (chiding pink) Caryophyllaceae (5 5 10 2) 112 --

Petrorhagia saxifraga Caryophyllaceae (5 5 10 2) 112 --

Petroselinum crispum (parsley) Apiaceae (5 5 5 2) 351 --

Petunia x hybrida (common petunia) Solanaceae ((5) (5) 5 2 hypo) 383 --

Petunia parviflora (wild petunia) Solanaceae ((5) (5) 5 2 hypo) 383 --

Phalaris arundinacea (reed canary grass) 714 -- wide lvs clasp stem; grn or sl purple single flower, short branches, two papery scales

Phalaris canariensis (canary grass) 714 --

Phaseolus polystachios (wild bean) Fabaceae (5 5 10 1 perf or unisex; peri) 285 -- purple, keel coiled; AD tri, glabrous/softly pubescent

Phellodendron amurense (amur cork tree) Rutaceae -- deciduous; 5-11 lflts, long ptd w/ thin curling pt, hairy edges & base of main vein Philadelphus coronarius (European mock orange) Hydrangeaceae (4(5) 4(5) 20+ 3-5 epi)204-lvs 3"; fls 5 or more in a determinate raceme; escape

Philadelphus inodorus (Appalachian mock orange) Hydrangeaceae (4(5) 4(5) 20+ 3-5 epi)204-lvs 4", us. entire;fls in cymules of 3, or solitry;

Philodendron amurense (cork tree)

Phleum pratense (timothy grass) Poaceae 720 -- narrow, cylindrical infl; beggar tick single fl

Phlox divaricata (wild blue or forest phlox) 389 -- style short; fls notched, pale blue-purple, red-prpl, white

Phlox maculata (meadow or wild sweet william phlox) 391 -- fls red-purple; stem us. red-spotted

Phlox paniculata (summer or garden phlox) 389 -- fls red-purple, varying to white; lvs ciliolate

Phlox pilosa (downy or prairie phlox) 389 -- style short; fls pale red-purple; stem hairy; lvs sharp-pointed; upland woods

Phlox sp. (phlox) Polemoniaceae ((5) (5) 5 1 hypo) --

Phlox subulata (moss-pink phlox) 390 -- fls notched rose-prple to pnk/wh; prostrate stems & lvs hairy; rock ledges Phragmites australis (giant reed grass) Poaceae 732

Phryma leptostachya (lopseed) Verbenaceae ((5) (5) 2+2 1 hypo) 407 -- lavender or purplish, 1/4"; OT egg, sessile

Physalis heterophylla (clammy ground cherry) 376 -- yellow; AT lvs extremely felty, subcordate base

Physalis longifolia (long-leaved ground cherry) 377 -- yellow; AT

Physalis longifolia var subglabrata (smooth ground cherry) Solanaceae -- yellow; AT lvs similar to Va gc, but stem & lvs smth or nrly so

Physalis pubescens (downy ground cherry) 378 --

Physalis peruviana (ground cherry) 377 -- fls deep purple-blue; AT

Physalis sp. (ground cherry) Solanaceae ((5) (5) 5 2 hypo) 376-377

Physalis virginiana (Virginia ground cherry) 377 -- yellow; AT narrow egg; stems downy

Physocarpus opulifolius (ninebark) Rosaceae (5 5 N 1) 217 --

Physostegia virginiana (obedience) Lamiaceae ((5) (5) 2+2 1) 422 -- OT lance, sharply toothed; pale purple or rose

Phytolacca americana (pokeweed) Phytolaccaceae (0 5 5-30 0/0 5 0 5-15 or 0 5 5-30 5-15 hypo) 084 -- AE egg or lance Phytolaccaceae (pokeweed) -- Phytolacca (pokeweed)

Picea abies (Norway spruce) 031 -- needles dark green & shiny to 3/4"; cones to 7"

Picea glauca (white spruce) 031 -- twigs & bud scales glabrous; bluish-green needles to 3/4"

Picea mariana (black spruce) 031 -- pubescent; lvs gray-green

Picea pungens var. glauca (blue spruce) --

Picea rubens (red spruce) 031 -- twigs & lower bud scales pubescent; lvs dark or bright green and shiny to 1/2"

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