Prunus cerasus (sour cherry) 241 -- fl clusters bracted

Prunus domestica (plum) 243 -- thorny branches; lvs oblance to obovate, hairy beneath

Prunus fruticosa (ground cherry) 242 -- fl clusters bracted; obtuse, finely serrate

Prunus mahaleb (mahaleb cherry) 241 -- fl clusters bractless; broadly ovate, finely serrate

Prunus maritima (beach plum) 242 -- egg-shaped lvs finely-toothed to the base

Prunus padus (European bird cherry) 241 -- infl racemose; lvs oblong-obovate; fr nearly bl; occ

Prunus pensylvanica (pin cherry) 241 -- lvs egg- or lance-shaped in whorls; flwring brnchs rddish brwn; fl clusters bractless

Prunus persica (peach) 240 -- fls & fr sessile or nearly; pink to dk pink fls

Prunus pumila var. susquehanae (sand cherry) 241 -- lvs not toothed below the middle; fl clusters bractless

Prunus serotina (black cherry) 240 -- fls white in dense racemes; lvs rusty-hairy on mid-rib below

Prunus sp. (cherry) Rosaceae (5 5 N 1) -- "black bird choked on the cherry" = those with racemes

Prunus spinosa (blackthorn or sole cherry) -- smaller & spiner than P domestica; smaller lvs (2-4cm); fr inedible, yellow

Prunus virginiana (chokecherry) 241 -- wh fls in dense racemes; lvs egg-shaped, finely toothed

Pseudotsuga menziesii (Douglass fir) Pinaceae -- cone to 3", w/ bracts pnting straight; distichous, ndles blunt-tipped, fruity fragrance

Ptelea trifoliata (hop tree) Rutaceae (4or5 4or5 8or10 1 hypo) 336 -- lvs trifoliate

Pteridium aquilinum (bracken fern) Dennstaedtiaceae 013 -- compound lvs, twice-cut

Pterospora andromedea (pine drops) Monotropaceae ((5) 10 (5) 1 hypo) --

Ptilimnium capillaceum (mock bishopweed) Apiaceae (5 5 5 2) 356 --

Puccinellia distans (European alkali grass) Poaceae 700 --

Puccinellia fasciculata Poaceae 699 --

Puccinellia maritima (seaside alkali grass) Poaceae 699 --

Puccinellia pallida Poaceae 699 --

Pueraria lobata (Kudzu vine) Fabaceae (5 5 10 1 perf or unisex; peri) 287 -- fls reddish-purple; standard yellow at base Pycnanthemum clinopodioides 414 --loose inf; OT lvs rel narrow lanceolate, entire of shallow serrate; near the coast

Pycnanthemum incanum (hoary mountain mint) 414 -- loose inf; fls wh or pale lilac w/ prpl spots; OT petld, lance, whtish Pycnanthemum muticum (short-toothed mountain mint) 416 -- capitate infl; OT, egg-shaped, velvety/glabrous; moist areas

Pycnanthemum setosum (mountain mint) 414 -- capitate infl; OT relatively broad; cal teeth to 2.5mm attenuate

Pycnanthemum sp. (mountain mint) Lamiaceae ((5) (5) 2+2 1) --

Pycnanthemum tenuifolium (narrow-leaved mountain mint) 416 -- capitate infl; OT lvs sessile, vry narrw

Pycnanthemum torrei (Torrey's mountain mint) 416 -- capitate infl; OT lvs narrower, glabrous; stem pubescent

Pycnanthemum verticillatum (mountain mint) 416 -- capitate infl; OT lvs narrower, hairy above

Pycnanthemum virginianum (Virginia mountain mint) 416 -- capitate infl; OT lvs sessile, lance, rnd at base

Pyrola elliptica (shinleaf) Pyrolaceae 196 -- lvs commonly longer than the petiole; 3-7cm wide; red stemlets; lvs not shining, longer than wide

Pyrola rotundifolia (rounded shinleaf) Pyrolaceae 196 -- lvs leathery 2.5-7cm, shining nearly round; stalk no longer than the blade Pyrolaceae (shinleaf) -- Chimaphila, Moneses, Pyrola

Pyrus communis (pear) Rosaceae (5 5 N 3-5) 243

Pyrus malus (apple) Rosaceae (5 5 N 3-5) 244 --

Pyxidanthera barbulata (pyxie) Diapensiaceae ((5) 5 5 1) 197 -- creeping mat-like plant; nodding white or pink fls; AE tiny, moss-like

Q

Quercus alba (white oak) 076 -- looks like kid's drawing of a Christmas tree; cup saucer-shaped

Quercus bicolor (swamp white oak) 77 -- lvs pale or whitened beneath w/ stellate hairs; cup hemispheric, cover of nut

Quercus coccinea (scarlet oak) 081 -- deeply 7-9 lobed; cup top-shaped, smooth inside, covering 1/2 the nut

Quercus falcata (Spanish oak) 079 --

Quercus ilicifolia (bear or scrub oak) 079 -- lvs whitened below; cup top- or saucer-shaped, covering 1/3 to of nut

Quercus marilandica (blackjack oak) 079 -- lvs rusty downy beneath; buds densely pubescent

Quercus muhlenbergii (yellow oak) 078 -- lvs dnsly hry benth, 9-14 veins on each side; cup saucer shaped covering 1/4 of the ovoid nut

Quercus palustris (pin oak) 081 -- lvs elliptic, bright green, to 5" w/ 5-7 toothed lobes; cup saucer-shaped encloses 1/4 to 1/3 of nut

Quercus phellos (willow oak) 079 --

Quercus prinoides (chinquapin oak) 078 -- lvs 5-8 veins on a side; dry, rocky slopes & barrens, often near the coast

Quercus prinus (chestnut oak) 078 -- cup hemispheric, covering 1/3 to of nut

Quercus rubra (red oak) 080 -- lvs pale beneath; cup saucer-shaped enclosing 1/5 to 1/4 of nut

Quercus sp. (oak) Fagaceae --

Quercus stellata (post oak) 076 -- scare-crow like leaves; cup hemispheric to pyriform, covering of nut

Quercus velutina (black oak) 080 -- buds hairy; lvs shiny, dark green above; cup top scaly, enclosing of nut

R

Ranunculaceae (buttercup) fr a follicle or berry lvs simple -- Aconitum; Caltha; Delphinium; Helleborus; Hydrastis; Trollius

Ranunculaceae -- lvs compound -- Actaea; Aquilegia; Cimicifuga; Coptis; Xanthorhiza

Ranunculaceae -- fr an achene; Adonis;Anemone; Anemonella; Clematis; Hepatica; Ranunculus; Thalictrum

Ranunculus abortivus (kidney leaved buttercup) (5 5 N N) 056 -- basal (kidney-shaped) & cauline lvs unlike; stem hairy

Ranunculus acris (tall buttercup) (5 5 N N) 054 -- larger lvs divided into 3-7 deeply cleft parts, all stalkless, stem hairy

Ranunculus allegheniensis (Allegheny crowfoot) -- basal & cauline lvs unlike; glabrous or subgl; reflex seps; pets 1.5mm

Ranunculus ambigens (water plantain spearwort) (5 5 N N) 057 -- pets 5-10mm; AE entire to denticulate or crenate

Ranunculus arvensis (corn crowfoot) (5 5 N N) 055 -- achenes papillate or spiny

Ranunculus bulbosus (bulbous buttercup) (5 5 N N) 054 -- sepals bent down, 1" wide fls; bulbous base; stem us. hairy;

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