Cyperus erythrorhizos (redroot flat sedge) 652 --

Cyperus esculentus (yellow nutsedge) 651 -- damp or wet soil

Cyperus filicinus (fern-like nutsedge) 657 -- one unruly infl

Cyperus flavescens (yellowish nutsedge) 656 -- each spikelet looks def. distichous

Cyperus flavus (yellowish nutsedge) 654

Cyperus fuscus (dusky nutsedge) 654 --

Cyperus grayi (Gray's nutsedge) 655

Cyperus grayioides (nutsedge) 655

Cyperus houghtonii (Houghton's nutsedge) 655 -- obpyramidal

Cyperus hystricinus (torch-like nutsedge) 654 -- torch-like

Cyperus lupulinus (hop-like nutsedge)

Cyperus microiria (small nutsedge) 652 --

Cyperus odoratus (fragrant nutsedge) 656

Cyperus plukenetii (Plunket's nutsedge) 653 -- torch-like infl; hairy stem & pedicels; dry, sandy pls.

Cyperus polystachyos (many spiked nutsedge) 657

Cyperus pseudovegetus (nutsedge) 653 --

Cyperus refractus (abruptly bent-back nutsedge) 653 -- torch-like infl, not hairy; pastures, roadsides & other disturbed pls.

Cyperus retrofractus (bent-back nutsedge) 654

Cyperus retrorsus (pine barrens nutsedge) 654 -- torch-like infl; sandy barrens & coast

Cyperus schweinitzii (Schweinitz's nutsedge) 655

Cyperus setigerus (bristly nutsedge) 650 --

Cyperus sp. (flat sedge) Cyperaceae --

Cyperus squarrosus (wide-sreading nutsedge) 652 -- obpyramidal spikes

Cyperus strigosus (strigose nutsedge) 653

Cypripedium acaule (pink lady's slipper) Orchidaceae (2+1z 3 1-2 3) 813 -- pink hollow pouch fl; BE felty

Cypripedium arietinum (ram's head lady slipper) Orchidaceae (2+1z 3 1-2 3) 812 -- very rare

Cypripedium calceolus v. parviflora (yellow lady's slipper) Orchidaceae (2+1z 3 1-2 3) 812 -- purple petals; boggy pls.

Cypripedium calceolus v pubescens (larger yellow lady's slipper) Orchidaceae (2+1z 3 1-2 3) 812 -- yellow-green twisted fls; AE

Cypripedium candidum (small white lady's slipper) Orchicaceae (2+1z 3 1-2 3) 812 -- small white fls faintly striped w/ purple; very rare

Cypripedium reginae (showy yellow lady's slipper) Orchidaceae (2+1z 3 1-2 3) 812 -- white fls suffused w pink; swamps & bogs

Cystopteris bulbifera (bulblet bladder fern)--barely thrice cut; rachis common bulbiliferous; lowest pair of pinnae a little longer than the next pair

Cystopteris fragilis v mackayi (brittle fragile fern) (f. C.tenuis) Aspleniaceae 020 -- thricecut; bright-green

Cystopteris protrusa (lowland bladder fern) Aspleniaceae 020 -- thrice-cut; pinnae like oak lvs; mesic woods

Cystopteris Aspleniaceae 020 -- fr dots like eggs in a basket

Cytisus scoparius (scotch broom) Fabaceae (5 5 10 1 perf or unisex; peri) 259 -- shrub w yellow fls, 1", in racemes; AD trifoliate

D

Dactylis glomeratus (orchard grass) Poaceae 705 -- spherical infl; curved rachilla

Dalea leporina (hare's foot dalea) Fabaceae (5 5 10 1 perf or unisex; peri) 282 --

Danthonia compressa Poaceae 732 --

Danthonia sericea (downy wild oat grass) Poaceae 733 --

Danthonia spicata (poverty grass) Poaceae 731 -- see Deschampsia flexuosa; cockroach in a V; raceme; very small wiry stem lvs; alt pedicels

Daphne mezereum (mezereum) Thymeleaceae (0 4 8 1) 293 -- seps pink to prpl or white

Datura metel Solanaceae ((5) (5) 5 2 hypo) 382 --

Datura stramonium (jimson weed) Solanaceae ((5) (5) 5 2 hypo) 383 --

Daucus carota (Queen Anne's lace) Apiaceae (5 5 5 2) 350

Decodon verticillatus (swamp loosestrife) Lythraceae (4-5 4-5 8or10 1 peri) 291

Decumaria barbara (climbing hydrangea) Hydrangeaceae (7-10 7-10 20-30 1 epi) 204 --

Dennstaedtia punctilobula (hay-scented fern) Dennstaedtiaceae 012 -- sessile; thrice-cut; yellowish-green; alt/opp, hairy rachis Deschampsia atropurpurea (dark purple hairgrass) Poaceae 712 --

Deschampsia cespitosa (tufted hairgrass) Poaceae 712 -- wet or boggy ground

Deschampsia flexuosa (hairgrass) Poaceae 712 -- 2 fls in a panicle; opp pedicles; big open infl; dry woods, fields & sandhills (see Danthonia spicata) Descurainia pinnata (tansy mustard) Brassicaceae (4 4 4+2 1) 182

Descurainia richardsonii (gray tansy mustard) Brassicaceae (4 4 4+2 1) 182

Desmodium canadense (showy tick trefoil) Fabaceae (5 5 10 1 perf/unisex; peri) 277 -- stem downy; fls 1/2" long; lvs fat, rounded at tip

Desmodium canescens (hoary tick trefoil) Fabaceae (5 5 10 1 perf/unisex; peri) 277 -- fls pinksh becming grn; lvs w hked hairs beneath; stem hairy

Desmodium ciliare (little-leaf tick trefoil) Fabacee (5 5 10 1 perf/unisex; peri) 278 -- stem hairy; fls under 1/4" long

Desmodium cuspidatum (large-bracted tick trefoil) Fabaceae (5 5 10 1 perf or unisex; peri) 279 --

Desmodium glabellum (Dillen's tick trefoil) Fabaceae (5 5 10 1 perf or unisex; peri) 278 -- lvs blunt or w/ a broad point; stem hairy

Desmodium glutinosum (pointed-leaved tick trefoil) Fabaceae (5 5 10 1 perf or unisex; peri) 276 -- purple in raceme; WE broad; stem hairy

Desmodium humifusum (tick trefoil) Fabaceae (5 5 10 1 perf or unisex; peri) 278 --

Desmodium laevigatum (smooth tick trefoil) Fabaceae (5 5 10 1 perf or unisex; peri) 278 --

Desmodium marilandicum (Maryland tick trefoil) Fabaceae (5 5 10 1 perf or unisex; peri) 278 --

Desmodium nudiflorum (naked-flowered tick trefoil) Fabaceae (5 5 10 1 perf or unisex; peri) 276 --

Desmodium ochroleucum (white tick trefoil) Fabaceae (5 5 10 1 perf or unisex; peri) 276 --

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